1 /* Keyboard and mouse input; editor command loop.
2 Copyright (C) 1985, 1986, 1987, 1988, 1989, 1993, 1994, 1995, 1996, 1997,
3 1999, 2000, 2001, 2002, 2003, 2004, 2005 Free Software Foundation, Inc.
5 This file is part of GNU Emacs.
7 GNU Emacs is free software; you can redistribute it and/or modify
8 it under the terms of the GNU General Public License as published by
9 the Free Software Foundation; either version 2, or (at your option)
12 GNU Emacs is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 GNU General Public License for more details.
17 You should have received a copy of the GNU General Public License
18 along with GNU Emacs; see the file COPYING. If not, write to
19 the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
20 Boston, MA 02111-1307, USA. */
29 #include "termhooks.h"
37 #include "dispextern.h"
39 #include "intervals.h"
41 #include "blockinput.h"
48 #ifdef HAVE_GTK_AND_PTHREAD
56 #include <sys/ioctl.h>
58 #endif /* not MSDOS */
60 #include "syssignal.h"
62 #include <sys/types.h>
71 /* This is to get the definitions of the XK_ symbols. */
78 #endif /* HAVE_NTGUI */
88 /* Variables for blockinput.h: */
90 /* Non-zero if interrupt input is blocked right now. */
91 int interrupt_input_blocked
;
93 /* Nonzero means an input interrupt has arrived
94 during the current critical section. */
95 int interrupt_input_pending
;
98 #ifdef HAVE_WINDOW_SYSTEM
99 /* Make all keyboard buffers much bigger when using X windows. */
101 /* But not too big (local data > 32K error) if on Mac OS Classic. */
102 #define KBD_BUFFER_SIZE 512
104 #define KBD_BUFFER_SIZE 4096
106 #else /* No X-windows, character input */
107 #define KBD_BUFFER_SIZE 4096
108 #endif /* No X-windows */
110 #define abs(x) ((x) >= 0 ? (x) : -(x))
112 /* Following definition copied from eval.c */
116 struct backtrace
*next
;
117 Lisp_Object
*function
;
118 Lisp_Object
*args
; /* Points to vector of args. */
119 int nargs
; /* length of vector. If nargs is UNEVALLED,
120 args points to slot holding list of
123 /* Nonzero means call value of debugger when done with this operation. */
128 KBOARD
*initial_kboard
;
129 KBOARD
*current_kboard
;
133 KBOARD the_only_kboard
;
136 /* Non-nil disable property on a command means
137 do not execute it; call disabled-command-function's value instead. */
138 Lisp_Object Qdisabled
, Qdisabled_command_function
;
140 #define NUM_RECENT_KEYS (100)
141 int recent_keys_index
; /* Index for storing next element into recent_keys */
142 int total_keys
; /* Total number of elements stored into recent_keys */
143 Lisp_Object recent_keys
; /* A vector, holding the last 100 keystrokes */
145 /* Vector holding the key sequence that invoked the current command.
146 It is reused for each command, and it may be longer than the current
147 sequence; this_command_key_count indicates how many elements
148 actually mean something.
149 It's easier to staticpro a single Lisp_Object than an array. */
150 Lisp_Object this_command_keys
;
151 int this_command_key_count
;
153 /* 1 after calling Freset_this_command_lengths.
155 int this_command_key_count_reset
;
157 /* This vector is used as a buffer to record the events that were actually read
158 by read_key_sequence. */
159 Lisp_Object raw_keybuf
;
160 int raw_keybuf_count
;
162 #define GROW_RAW_KEYBUF \
163 if (raw_keybuf_count == XVECTOR (raw_keybuf)->size) \
165 int newsize = 2 * XVECTOR (raw_keybuf)->size; \
167 new = Fmake_vector (make_number (newsize), Qnil); \
168 bcopy (XVECTOR (raw_keybuf)->contents, XVECTOR (new)->contents, \
169 raw_keybuf_count * sizeof (Lisp_Object)); \
173 /* Number of elements of this_command_keys
174 that precede this key sequence. */
175 int this_single_command_key_start
;
177 /* Record values of this_command_key_count and echo_length ()
178 before this command was read. */
179 static int before_command_key_count
;
180 static int before_command_echo_length
;
182 extern int minbuf_level
;
184 extern int message_enable_multibyte
;
186 extern struct backtrace
*backtrace_list
;
188 /* If non-nil, the function that implements the display of help.
189 It's called with one argument, the help string to display. */
191 Lisp_Object Vshow_help_function
;
193 /* If a string, the message displayed before displaying a help-echo
196 Lisp_Object Vpre_help_message
;
198 /* Nonzero means do menu prompting. */
200 static int menu_prompting
;
202 /* Character to see next line of menu prompt. */
204 static Lisp_Object menu_prompt_more_char
;
206 /* For longjmp to where kbd input is being done. */
208 static jmp_buf getcjmp
;
210 /* True while doing kbd input. */
211 int waiting_for_input
;
213 /* True while displaying for echoing. Delays C-g throwing. */
217 /* Non-null means we can start echoing at the next input pause even
218 though there is something in the echo area. */
220 static struct kboard
*ok_to_echo_at_next_pause
;
222 /* The kboard last echoing, or null for none. Reset to 0 in
223 cancel_echoing. If non-null, and a current echo area message
224 exists, and echo_message_buffer is eq to the current message
225 buffer, we know that the message comes from echo_kboard. */
227 struct kboard
*echo_kboard
;
229 /* The buffer used for echoing. Set in echo_now, reset in
232 Lisp_Object echo_message_buffer
;
234 /* Nonzero means disregard local maps for the menu bar. */
235 static int inhibit_local_menu_bar_menus
;
237 /* Nonzero means C-g should cause immediate error-signal. */
240 /* The user's ERASE setting. */
241 Lisp_Object Vtty_erase_char
;
243 /* Character to recognize as the help char. */
244 Lisp_Object Vhelp_char
;
246 /* List of other event types to recognize as meaning "help". */
247 Lisp_Object Vhelp_event_list
;
249 /* Form to execute when help char is typed. */
250 Lisp_Object Vhelp_form
;
252 /* Command to run when the help character follows a prefix key. */
253 Lisp_Object Vprefix_help_command
;
255 /* List of items that should move to the end of the menu bar. */
256 Lisp_Object Vmenu_bar_final_items
;
258 /* Non-nil means show the equivalent key-binding for
259 any M-x command that has one.
260 The value can be a length of time to show the message for.
261 If the value is non-nil and not a number, we wait 2 seconds. */
262 Lisp_Object Vsuggest_key_bindings
;
264 /* How long to display an echo-area message when the minibuffer is active.
265 If the value is not a number, such messages don't time out. */
266 Lisp_Object Vminibuffer_message_timeout
;
268 /* Character that causes a quit. Normally C-g.
270 If we are running on an ordinary terminal, this must be an ordinary
271 ASCII char, since we want to make it our interrupt character.
273 If we are not running on an ordinary terminal, it still needs to be
274 an ordinary ASCII char. This character needs to be recognized in
275 the input interrupt handler. At this point, the keystroke is
276 represented as a struct input_event, while the desired quit
277 character is specified as a lispy event. The mapping from struct
278 input_events to lispy events cannot run in an interrupt handler,
279 and the reverse mapping is difficult for anything but ASCII
282 FOR THESE ELABORATE AND UNSATISFYING REASONS, quit_char must be an
286 extern Lisp_Object current_global_map
;
287 extern int minibuf_level
;
289 /* If non-nil, this is a map that overrides all other local maps. */
290 Lisp_Object Voverriding_local_map
;
292 /* If non-nil, Voverriding_local_map applies to the menu bar. */
293 Lisp_Object Voverriding_local_map_menu_flag
;
295 /* Keymap that defines special misc events that should
296 be processed immediately at a low level. */
297 Lisp_Object Vspecial_event_map
;
299 /* Current depth in recursive edits. */
300 int command_loop_level
;
302 /* Total number of times command_loop has read a key sequence. */
303 EMACS_INT num_input_keys
;
305 /* Last input character read as a command. */
306 Lisp_Object last_command_char
;
308 /* Last input character read as a command, not counting menus
309 reached by the mouse. */
310 Lisp_Object last_nonmenu_event
;
312 /* Last input character read for any purpose. */
313 Lisp_Object last_input_char
;
315 /* If not Qnil, a list of objects to be read as subsequent command input. */
316 Lisp_Object Vunread_command_events
;
318 /* If not Qnil, a list of objects to be read as subsequent command input
319 including input method processing. */
320 Lisp_Object Vunread_input_method_events
;
322 /* If not Qnil, a list of objects to be read as subsequent command input
323 but NOT including input method processing. */
324 Lisp_Object Vunread_post_input_method_events
;
326 /* If not -1, an event to be read as subsequent command input. */
327 EMACS_INT unread_command_char
;
329 /* If not Qnil, this is a switch-frame event which we decided to put
330 off until the end of a key sequence. This should be read as the
331 next command input, after any unread_command_events.
333 read_key_sequence uses this to delay switch-frame events until the
334 end of the key sequence; Fread_char uses it to put off switch-frame
335 events until a non-ASCII event is acceptable as input. */
336 Lisp_Object unread_switch_frame
;
338 /* A mask of extra modifier bits to put into every keyboard char. */
339 EMACS_INT extra_keyboard_modifiers
;
341 /* Char to use as prefix when a meta character is typed in.
342 This is bound on entry to minibuffer in case ESC is changed there. */
344 Lisp_Object meta_prefix_char
;
346 /* Last size recorded for a current buffer which is not a minibuffer. */
347 static int last_non_minibuf_size
;
349 /* Number of idle seconds before an auto-save and garbage collection. */
350 static Lisp_Object Vauto_save_timeout
;
352 /* Total number of times read_char has returned. */
353 int num_input_events
;
355 /* Total number of times read_char has returned, outside of macros. */
356 EMACS_INT num_nonmacro_input_events
;
358 /* Auto-save automatically when this many characters have been typed
359 since the last time. */
361 static EMACS_INT auto_save_interval
;
363 /* Value of num_nonmacro_input_events as of last auto save. */
367 /* The command being executed by the command loop.
368 Commands may set this, and the value set will be copied into
369 current_kboard->Vlast_command instead of the actual command. */
370 Lisp_Object Vthis_command
;
372 /* This is like Vthis_command, except that commands never set it. */
373 Lisp_Object real_this_command
;
375 /* If the lookup of the command returns a binding, the original
376 command is stored in this-original-command. It is nil otherwise. */
377 Lisp_Object Vthis_original_command
;
379 /* The value of point when the last command was executed. */
380 int last_point_position
;
382 /* The buffer that was current when the last command was started. */
383 Lisp_Object last_point_position_buffer
;
385 /* The frame in which the last input event occurred, or Qmacro if the
386 last event came from a macro. We use this to determine when to
387 generate switch-frame events. This may be cleared by functions
388 like Fselect_frame, to make sure that a switch-frame event is
389 generated by the next character. */
390 Lisp_Object internal_last_event_frame
;
392 /* A user-visible version of the above, intended to allow users to
393 figure out where the last event came from, if the event doesn't
394 carry that information itself (i.e. if it was a character). */
395 Lisp_Object Vlast_event_frame
;
397 /* The timestamp of the last input event we received from the X server.
398 X Windows wants this for selection ownership. */
399 unsigned long last_event_timestamp
;
401 Lisp_Object Qself_insert_command
;
402 Lisp_Object Qforward_char
;
403 Lisp_Object Qbackward_char
;
404 Lisp_Object Qundefined
;
405 Lisp_Object Qtimer_event_handler
;
407 /* read_key_sequence stores here the command definition of the
408 key sequence that it reads. */
409 Lisp_Object read_key_sequence_cmd
;
411 /* Echo unfinished commands after this many seconds of pause. */
412 Lisp_Object Vecho_keystrokes
;
414 /* Form to evaluate (if non-nil) when Emacs is started. */
415 Lisp_Object Vtop_level
;
417 /* User-supplied table to translate input characters. */
418 Lisp_Object Vkeyboard_translate_table
;
420 /* Keymap mapping ASCII function key sequences onto their preferred forms. */
421 extern Lisp_Object Vfunction_key_map
;
423 /* Another keymap that maps key sequences into key sequences.
424 This one takes precedence over ordinary definitions. */
425 extern Lisp_Object Vkey_translation_map
;
427 /* If non-nil, this implements the current input method. */
428 Lisp_Object Vinput_method_function
;
429 Lisp_Object Qinput_method_function
;
431 /* When we call Vinput_method_function,
432 this holds the echo area message that was just erased. */
433 Lisp_Object Vinput_method_previous_message
;
435 /* Non-nil means deactivate the mark at end of this command. */
436 Lisp_Object Vdeactivate_mark
;
438 /* Menu bar specified in Lucid Emacs fashion. */
440 Lisp_Object Vlucid_menu_bar_dirty_flag
;
441 Lisp_Object Qrecompute_lucid_menubar
, Qactivate_menubar_hook
;
443 Lisp_Object Qecho_area_clear_hook
;
445 /* Hooks to run before and after each command. */
446 Lisp_Object Qpre_command_hook
, Vpre_command_hook
;
447 Lisp_Object Qpost_command_hook
, Vpost_command_hook
;
448 Lisp_Object Qcommand_hook_internal
, Vcommand_hook_internal
;
449 /* Hook run after a command if there's no more input soon. */
450 Lisp_Object Qpost_command_idle_hook
, Vpost_command_idle_hook
;
452 /* Delay time in microseconds before running post-command-idle-hook. */
453 EMACS_INT post_command_idle_delay
;
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 /* Non-zero means force key bindings update in parse_menu_item. */
474 int update_menu_bindings
;
476 extern char *pending_malloc_warning
;
478 /* Circular buffer for pre-read keyboard input. */
480 static struct input_event kbd_buffer
[KBD_BUFFER_SIZE
];
482 /* Pointer to next available character in kbd_buffer.
483 If kbd_fetch_ptr == kbd_store_ptr, the buffer is empty.
484 This may be kbd_buffer + KBD_BUFFER_SIZE, meaning that the
485 next available char is in kbd_buffer[0]. */
486 static struct input_event
*kbd_fetch_ptr
;
488 /* Pointer to next place to store character in kbd_buffer. This
489 may be kbd_buffer + KBD_BUFFER_SIZE, meaning that the next
490 character should go in kbd_buffer[0]. */
491 static struct input_event
* volatile kbd_store_ptr
;
493 /* The above pair of variables forms a "queue empty" flag. When we
494 enqueue a non-hook event, we increment kbd_store_ptr. When we
495 dequeue a non-hook event, we increment kbd_fetch_ptr. We say that
496 there is input available iff the two pointers are not equal.
498 Why not just have a flag set and cleared by the enqueuing and
499 dequeuing functions? Such a flag could be screwed up by interrupts
500 at inopportune times. */
502 /* If this flag is non-nil, we check mouse_moved to see when the
503 mouse moves, and motion events will appear in the input stream.
504 Otherwise, mouse motion is ignored. */
505 Lisp_Object do_mouse_tracking
;
507 /* Symbols to head events. */
508 Lisp_Object Qmouse_movement
;
509 Lisp_Object Qscroll_bar_movement
;
510 Lisp_Object Qswitch_frame
;
511 Lisp_Object Qdelete_frame
;
512 Lisp_Object Qiconify_frame
;
513 Lisp_Object Qmake_frame_visible
;
514 Lisp_Object Qselect_window
;
515 Lisp_Object Qhelp_echo
;
517 /* Symbols to denote kinds of events. */
518 Lisp_Object Qfunction_key
;
519 Lisp_Object Qmouse_click
;
521 Lisp_Object Qlanguage_change
;
523 Lisp_Object Qdrag_n_drop
;
524 Lisp_Object Qsave_session
;
526 /* Lisp_Object Qmouse_movement; - also an event header */
528 /* Properties of event headers. */
529 Lisp_Object Qevent_kind
;
530 Lisp_Object Qevent_symbol_elements
;
532 /* menu item parts */
533 Lisp_Object Qmenu_alias
;
534 Lisp_Object Qmenu_enable
;
535 Lisp_Object QCenable
, QCvisible
, QChelp
, QCfilter
, QCkeys
, QCkey_sequence
;
536 Lisp_Object QCbutton
, QCtoggle
, QCradio
;
537 extern Lisp_Object Vdefine_key_rebound_commands
;
538 extern Lisp_Object Qmenu_item
;
540 /* An event header symbol HEAD may have a property named
541 Qevent_symbol_element_mask, which is of the form (BASE MODIFIERS);
542 BASE is the base, unmodified version of HEAD, and MODIFIERS is the
543 mask of modifiers applied to it. If present, this is used to help
544 speed up parse_modifiers. */
545 Lisp_Object Qevent_symbol_element_mask
;
547 /* An unmodified event header BASE may have a property named
548 Qmodifier_cache, which is an alist mapping modifier masks onto
549 modified versions of BASE. If present, this helps speed up
551 Lisp_Object Qmodifier_cache
;
553 /* Symbols to use for parts of windows. */
554 Lisp_Object Qmode_line
;
555 Lisp_Object Qvertical_line
;
556 Lisp_Object Qvertical_scroll_bar
;
557 Lisp_Object Qmenu_bar
;
558 extern Lisp_Object Qleft_margin
, Qright_margin
;
559 extern Lisp_Object Qleft_fringe
, Qright_fringe
;
560 extern Lisp_Object QCmap
;
562 Lisp_Object
recursive_edit_unwind (), command_loop ();
563 Lisp_Object
Fthis_command_keys ();
564 Lisp_Object Qextended_command_history
;
565 EMACS_TIME
timer_check ();
567 extern Lisp_Object Vhistory_length
, Vtranslation_table_for_input
;
569 extern char *x_get_keysym_name ();
571 static void record_menu_key ();
572 static int echo_length ();
574 Lisp_Object Qpolling_period
;
576 /* List of absolute timers. Appears in order of next scheduled event. */
577 Lisp_Object Vtimer_list
;
579 /* List of idle time timers. Appears in order of next scheduled event. */
580 Lisp_Object Vtimer_idle_list
;
582 /* Incremented whenever a timer is run. */
585 extern Lisp_Object Vprint_level
, Vprint_length
;
587 /* Address (if not 0) of EMACS_TIME to zero out if a SIGIO interrupt
589 EMACS_TIME
*input_available_clear_time
;
591 /* Nonzero means use SIGIO interrupts; zero means use CBREAK mode.
592 Default is 1 if INTERRUPT_INPUT is defined. */
595 /* Nonzero while interrupts are temporarily deferred during redisplay. */
596 int interrupts_deferred
;
598 /* Allow m- file to inhibit use of FIONREAD. */
599 #ifdef BROKEN_FIONREAD
603 /* We are unable to use interrupts if FIONREAD is not available,
604 so flush SIGIO so we won't try. */
605 #if !defined (FIONREAD)
611 /* If we support a window system, turn on the code to poll periodically
612 to detect C-g. It isn't actually used when doing interrupt input. */
613 #if defined(HAVE_WINDOW_SYSTEM) && !defined(USE_ASYNC_EVENTS)
614 #define POLL_FOR_INPUT
617 /* After a command is executed, if point is moved into a region that
618 has specific properties (e.g. composition, display), we adjust
619 point to the boundary of the region. But, if a command sets this
620 variable to non-nil, we suppress this point adjustment. This
621 variable is set to nil before reading a command. */
623 Lisp_Object Vdisable_point_adjustment
;
625 /* If non-nil, always disable point adjustment. */
627 Lisp_Object Vglobal_disable_point_adjustment
;
629 /* The time when Emacs started being idle. */
631 static EMACS_TIME timer_idleness_start_time
;
633 /* After Emacs stops being idle, this saves the last value
634 of timer_idleness_start_time from when it was idle. */
636 static EMACS_TIME timer_last_idleness_start_time
;
639 /* Global variable declarations. */
641 /* Flags for readable_events. */
642 #define READABLE_EVENTS_DO_TIMERS_NOW (1 << 0)
643 #define READABLE_EVENTS_FILTER_EVENTS (1 << 1)
644 #define READABLE_EVENTS_IGNORE_SQUEEZABLES (1 << 2)
646 /* Function for init_keyboard to call with no args (if nonzero). */
647 void (*keyboard_init_hook
) ();
649 static int read_avail_input
P_ ((int));
650 static void get_input_pending
P_ ((int *, int));
651 static int readable_events
P_ ((int));
652 static Lisp_Object read_char_x_menu_prompt
P_ ((int, Lisp_Object
*,
653 Lisp_Object
, int *));
654 static Lisp_Object
read_char_x_menu_prompt ();
655 static Lisp_Object read_char_minibuf_menu_prompt
P_ ((int, int,
657 static Lisp_Object make_lispy_event
P_ ((struct input_event
*));
659 static Lisp_Object make_lispy_movement
P_ ((struct frame
*, Lisp_Object
,
660 enum scroll_bar_part
,
661 Lisp_Object
, Lisp_Object
,
664 static Lisp_Object modify_event_symbol
P_ ((int, unsigned, Lisp_Object
,
665 Lisp_Object
, char **,
666 Lisp_Object
*, unsigned));
667 static Lisp_Object make_lispy_switch_frame
P_ ((Lisp_Object
));
668 static int parse_solitary_modifier
P_ ((Lisp_Object
));
669 static int parse_solitary_modifier ();
670 static void save_getcjmp
P_ ((jmp_buf));
671 static void save_getcjmp ();
672 static void restore_getcjmp
P_ ((jmp_buf));
673 static Lisp_Object apply_modifiers
P_ ((int, Lisp_Object
));
674 static void clear_event
P_ ((struct input_event
*));
675 static void any_kboard_state
P_ ((void));
676 static SIGTYPE interrupt_signal
P_ ((int signalnum
));
677 static void handle_interrupt
P_ ((void));
678 static void timer_start_idle
P_ ((void));
679 static void timer_stop_idle
P_ ((void));
680 static void timer_resume_idle
P_ ((void));
682 /* Nonzero means don't try to suspend even if the operating system seems
684 static int cannot_suspend
;
686 extern Lisp_Object Qidentity
, Qonly
;
688 /* Install the string STR as the beginning of the string of echoing,
689 so that it serves as a prompt for the next character.
690 Also start echoing. */
696 current_kboard
->echo_string
= str
;
697 current_kboard
->echo_after_prompt
= SCHARS (str
);
701 /* Add C to the echo string, if echoing is going on.
702 C can be a character, which is printed prettily ("M-C-x" and all that
703 jazz), or a symbol, whose name is printed. */
709 if (current_kboard
->immediate_echo
)
711 int size
= KEY_DESCRIPTION_SIZE
+ 100;
712 char *buffer
= (char *) alloca (size
);
714 Lisp_Object echo_string
;
716 echo_string
= current_kboard
->echo_string
;
718 /* If someone has passed us a composite event, use its head symbol. */
723 ptr
= push_key_description (XINT (c
), ptr
, 1);
725 else if (SYMBOLP (c
))
727 Lisp_Object name
= SYMBOL_NAME (c
);
728 int nbytes
= SBYTES (name
);
730 if (size
- (ptr
- buffer
) < nbytes
)
732 int offset
= ptr
- buffer
;
733 size
= max (2 * size
, size
+ nbytes
);
734 buffer
= (char *) alloca (size
);
735 ptr
= buffer
+ offset
;
738 ptr
+= copy_text (SDATA (name
), ptr
, nbytes
,
739 STRING_MULTIBYTE (name
), 1);
742 if ((NILP (echo_string
) || SCHARS (echo_string
) == 0)
745 const char *text
= " (Type ? for further options)";
746 int len
= strlen (text
);
748 if (size
- (ptr
- buffer
) < len
)
750 int offset
= ptr
- buffer
;
752 buffer
= (char *) alloca (size
);
753 ptr
= buffer
+ offset
;
756 bcopy (text
, ptr
, len
);
760 /* Replace a dash from echo_dash with a space, otherwise
761 add a space at the end as a separator between keys. */
762 if (STRINGP (echo_string
)
763 && SCHARS (echo_string
) > 1)
765 Lisp_Object last_char
, prev_char
, idx
;
767 idx
= make_number (SCHARS (echo_string
) - 2);
768 prev_char
= Faref (echo_string
, idx
);
770 idx
= make_number (SCHARS (echo_string
) - 1);
771 last_char
= Faref (echo_string
, idx
);
773 /* We test PREV_CHAR to make sure this isn't the echoing
775 if (XINT (last_char
) == '-' && XINT (prev_char
) != ' ')
776 Faset (echo_string
, idx
, make_number (' '));
778 echo_string
= concat2 (echo_string
, build_string (" "));
781 current_kboard
->echo_string
782 = concat2 (echo_string
, make_string (buffer
, ptr
- buffer
));
788 /* Temporarily add a dash to the end of the echo string if it's not
789 empty, so that it serves as a mini-prompt for the very next character. */
794 /* Do nothing if not echoing at all. */
795 if (NILP (current_kboard
->echo_string
))
798 if (!current_kboard
->immediate_echo
799 && SCHARS (current_kboard
->echo_string
) == 0)
802 /* Do nothing if we just printed a prompt. */
803 if (current_kboard
->echo_after_prompt
804 == SCHARS (current_kboard
->echo_string
))
807 /* Do nothing if we have already put a dash at the end. */
808 if (SCHARS (current_kboard
->echo_string
) > 1)
810 Lisp_Object last_char
, prev_char
, idx
;
812 idx
= make_number (SCHARS (current_kboard
->echo_string
) - 2);
813 prev_char
= Faref (current_kboard
->echo_string
, idx
);
815 idx
= make_number (SCHARS (current_kboard
->echo_string
) - 1);
816 last_char
= Faref (current_kboard
->echo_string
, idx
);
818 if (XINT (last_char
) == '-' && XINT (prev_char
) != ' ')
822 /* Put a dash at the end of the buffer temporarily,
823 but make it go away when the next character is added. */
824 current_kboard
->echo_string
= concat2 (current_kboard
->echo_string
,
829 /* Display the current echo string, and begin echoing if not already
835 if (!current_kboard
->immediate_echo
)
838 current_kboard
->immediate_echo
= 1;
840 for (i
= 0; i
< this_command_key_count
; i
++)
844 /* Set before_command_echo_length to the value that would
845 have been saved before the start of this subcommand in
846 command_loop_1, if we had already been echoing then. */
847 if (i
== this_single_command_key_start
)
848 before_command_echo_length
= echo_length ();
850 c
= XVECTOR (this_command_keys
)->contents
[i
];
851 if (! (EVENT_HAS_PARAMETERS (c
)
852 && EQ (EVENT_HEAD_KIND (EVENT_HEAD (c
)), Qmouse_movement
)))
856 /* Set before_command_echo_length to the value that would
857 have been saved before the start of this subcommand in
858 command_loop_1, if we had already been echoing then. */
859 if (this_command_key_count
== this_single_command_key_start
)
860 before_command_echo_length
= echo_length ();
862 /* Put a dash at the end to invite the user to type more. */
867 message3_nolog (current_kboard
->echo_string
,
868 SBYTES (current_kboard
->echo_string
),
869 STRING_MULTIBYTE (current_kboard
->echo_string
));
872 /* Record in what buffer we echoed, and from which kboard. */
873 echo_message_buffer
= echo_area_buffer
[0];
874 echo_kboard
= current_kboard
;
876 if (waiting_for_input
&& !NILP (Vquit_flag
))
877 quit_throw_to_read_char ();
880 /* Turn off echoing, for the start of a new command. */
885 current_kboard
->immediate_echo
= 0;
886 current_kboard
->echo_after_prompt
= -1;
887 current_kboard
->echo_string
= Qnil
;
888 ok_to_echo_at_next_pause
= NULL
;
890 echo_message_buffer
= Qnil
;
893 /* Return the length of the current echo string. */
898 return (STRINGP (current_kboard
->echo_string
)
899 ? SCHARS (current_kboard
->echo_string
)
903 /* Truncate the current echo message to its first LEN chars.
904 This and echo_char get used by read_key_sequence when the user
905 switches frames while entering a key sequence. */
908 echo_truncate (nchars
)
911 if (STRINGP (current_kboard
->echo_string
))
912 current_kboard
->echo_string
913 = Fsubstring (current_kboard
->echo_string
,
914 make_number (0), make_number (nchars
));
915 truncate_echo_area (nchars
);
919 /* Functions for manipulating this_command_keys. */
921 add_command_key (key
)
924 #if 0 /* Not needed after we made Freset_this_command_lengths
925 do the job immediately. */
926 /* If reset-this-command-length was called recently, obey it now.
927 See the doc string of that function for an explanation of why. */
928 if (before_command_restore_flag
)
930 this_command_key_count
= before_command_key_count_1
;
931 if (this_command_key_count
< this_single_command_key_start
)
932 this_single_command_key_start
= this_command_key_count
;
933 echo_truncate (before_command_echo_length_1
);
934 before_command_restore_flag
= 0;
938 if (this_command_key_count
>= ASIZE (this_command_keys
))
939 this_command_keys
= larger_vector (this_command_keys
,
940 2 * ASIZE (this_command_keys
),
943 AREF (this_command_keys
, this_command_key_count
) = key
;
944 ++this_command_key_count
;
951 int count
= SPECPDL_INDEX ();
954 if (command_loop_level
> 0)
956 specbind (Qstandard_output
, Qt
);
957 specbind (Qstandard_input
, Qt
);
960 #ifdef HAVE_X_WINDOWS
961 /* The command loop has started an hourglass timer, so we have to
962 cancel it here, otherwise it will fire because the recursive edit
963 can take some time. Do not check for display_hourglass_p here,
964 because it could already be nil. */
968 /* This function may have been called from a debugger called from
969 within redisplay, for instance by Edebugging a function called
970 from fontification-functions. We want to allow redisplay in
971 the debugging session.
973 The recursive edit is left with a `(throw exit ...)'. The `exit'
974 tag is not caught anywhere in redisplay, i.e. when we leave the
975 recursive edit, the original redisplay leading to the recursive
976 edit will be unwound. The outcome should therefore be safe. */
977 specbind (Qinhibit_redisplay
, Qnil
);
980 val
= command_loop ();
982 Fsignal (Qquit
, Qnil
);
983 /* Handle throw from read_minibuf when using minibuffer
984 while it's active but we're in another window. */
986 Fsignal (Qerror
, Fcons (val
, Qnil
));
988 return unbind_to (count
, Qnil
);
991 /* When an auto-save happens, record the "time", and don't do again soon. */
996 last_auto_save
= num_nonmacro_input_events
;
999 /* Make an auto save happen as soon as possible at command level. */
1002 force_auto_save_soon ()
1004 last_auto_save
= - auto_save_interval
- 1;
1006 record_asynch_buffer_change ();
1009 DEFUN ("recursive-edit", Frecursive_edit
, Srecursive_edit
, 0, 0, "",
1010 doc
: /* Invoke the editor command loop recursively.
1011 To get out of the recursive edit, a command can do `(throw 'exit nil)';
1012 that tells this function to return.
1013 Alternately, `(throw 'exit t)' makes this function signal an error.
1014 This function is called by the editor initialization to begin editing. */)
1017 int count
= SPECPDL_INDEX ();
1020 /* If we enter while input is blocked, don't lock up here.
1021 This may happen through the debugger during redisplay. */
1022 if (INPUT_BLOCKED_P
)
1025 command_loop_level
++;
1026 update_mode_lines
= 1;
1028 if (command_loop_level
1029 && current_buffer
!= XBUFFER (XWINDOW (selected_window
)->buffer
))
1030 buffer
= Fcurrent_buffer ();
1034 /* If we leave recursive_edit_1 below with a `throw' for instance,
1035 like it is done in the splash screen display, we have to
1036 make sure that we restore single_kboard as command_loop_1
1037 would have done if it were left normally. */
1038 record_unwind_protect (recursive_edit_unwind
,
1039 Fcons (buffer
, single_kboard
? Qt
: Qnil
));
1041 recursive_edit_1 ();
1042 return unbind_to (count
, Qnil
);
1046 recursive_edit_unwind (info
)
1049 if (BUFFERP (XCAR (info
)))
1050 Fset_buffer (XCAR (info
));
1052 if (NILP (XCDR (info
)))
1053 any_kboard_state ();
1055 single_kboard_state ();
1057 command_loop_level
--;
1058 update_mode_lines
= 1;
1067 #if 0 /* Theory: if there's anything in Vunread_command_events,
1068 it will right away be read by read_key_sequence,
1069 and then if we do switch KBOARDS, it will go into the side
1070 queue then. So we don't need to do anything special here -- rms. */
1071 if (CONSP (Vunread_command_events
))
1073 current_kboard
->kbd_queue
1074 = nconc2 (Vunread_command_events
, current_kboard
->kbd_queue
);
1075 current_kboard
->kbd_queue_has_data
= 1;
1077 Vunread_command_events
= Qnil
;
1083 /* Switch to the single-kboard state, making current_kboard
1084 the only KBOARD from which further input is accepted. */
1087 single_kboard_state ()
1094 /* If we're in single_kboard state for kboard KBOARD,
1098 not_single_kboard_state (kboard
)
1102 if (kboard
== current_kboard
)
1107 /* Maintain a stack of kboards, so other parts of Emacs
1108 can switch temporarily to the kboard of a given frame
1109 and then revert to the previous status. */
1114 struct kboard_stack
*next
;
1117 static struct kboard_stack
*kboard_stack
;
1120 push_frame_kboard (f
)
1124 struct kboard_stack
*p
1125 = (struct kboard_stack
*) xmalloc (sizeof (struct kboard_stack
));
1127 p
->next
= kboard_stack
;
1128 p
->kboard
= current_kboard
;
1131 current_kboard
= FRAME_KBOARD (f
);
1139 struct kboard_stack
*p
= kboard_stack
;
1140 current_kboard
= p
->kboard
;
1141 kboard_stack
= p
->next
;
1146 /* Handle errors that are not handled at inner levels
1147 by printing an error message and returning to the editor command loop. */
1153 Lisp_Object old_level
, old_length
;
1154 char macroerror
[50];
1156 #ifdef HAVE_X_WINDOWS
1157 if (display_hourglass_p
)
1158 cancel_hourglass ();
1161 if (!NILP (executing_macro
))
1163 if (executing_macro_iterations
== 1)
1164 sprintf (macroerror
, "After 1 kbd macro iteration: ");
1166 sprintf (macroerror
, "After %d kbd macro iterations: ",
1167 executing_macro_iterations
);
1172 Vstandard_output
= Qt
;
1173 Vstandard_input
= Qt
;
1174 Vexecuting_macro
= Qnil
;
1175 executing_macro
= Qnil
;
1176 current_kboard
->Vprefix_arg
= Qnil
;
1177 current_kboard
->Vlast_prefix_arg
= Qnil
;
1180 /* Avoid unquittable loop if data contains a circular list. */
1181 old_level
= Vprint_level
;
1182 old_length
= Vprint_length
;
1183 XSETFASTINT (Vprint_level
, 10);
1184 XSETFASTINT (Vprint_length
, 10);
1185 cmd_error_internal (data
, macroerror
);
1186 Vprint_level
= old_level
;
1187 Vprint_length
= old_length
;
1191 Vinhibit_quit
= Qnil
;
1193 if (command_loop_level
== 0 && minibuf_level
== 0)
1194 any_kboard_state ();
1197 return make_number (0);
1200 /* Take actions on handling an error. DATA is the data that describes
1203 CONTEXT is a C-string containing ASCII characters only which
1204 describes the context in which the error happened. If we need to
1205 generalize CONTEXT to allow multibyte characters, make it a Lisp
1209 cmd_error_internal (data
, context
)
1214 int kill_emacs_p
= 0;
1215 struct frame
*sf
= SELECTED_FRAME ();
1219 clear_message (1, 0);
1221 /* If the window system or terminal frame hasn't been initialized
1222 yet, or we're not interactive, it's best to dump this message out
1223 to stderr and exit. */
1224 if (!sf
->glyphs_initialized_p
1225 || FRAME_INITIAL_P (sf
)
1228 stream
= Qexternal_debugging_output
;
1234 message_log_maybe_newline ();
1239 /* The immediate context is not interesting for Quits,
1240 since they are asyncronous. */
1241 if (EQ (XCAR (data
), Qquit
))
1242 Vsignaling_function
= Qnil
;
1244 print_error_message (data
, stream
, context
, Vsignaling_function
);
1246 Vsignaling_function
= Qnil
;
1248 /* If the window system or terminal frame hasn't been initialized
1249 yet, or we're in -batch mode, this error should cause Emacs to exit. */
1253 Fkill_emacs (make_number (-1));
1257 Lisp_Object
command_loop_1 ();
1258 Lisp_Object
command_loop_2 ();
1259 Lisp_Object
top_level_1 ();
1261 /* Entry to editor-command-loop.
1262 This level has the catches for exiting/returning to editor command loop.
1263 It returns nil to exit recursive edit, t to abort it. */
1268 if (command_loop_level
> 0 || minibuf_level
> 0)
1271 val
= internal_catch (Qexit
, command_loop_2
, Qnil
);
1272 executing_macro
= Qnil
;
1278 internal_catch (Qtop_level
, top_level_1
, Qnil
);
1279 /* Reset single_kboard in case top-level set it while
1280 evaluating an -f option, or we are stuck there for some
1282 any_kboard_state ();
1283 internal_catch (Qtop_level
, command_loop_2
, Qnil
);
1284 executing_macro
= Qnil
;
1286 /* End of file in -batch run causes exit here. */
1292 /* Here we catch errors in execution of commands within the
1293 editing loop, and reenter the editing loop.
1294 When there is an error, cmd_error runs and returns a non-nil
1295 value to us. A value of nil means that command_loop_1 itself
1296 returned due to end of file (or end of kbd macro). */
1301 register Lisp_Object val
;
1304 val
= internal_condition_case (command_loop_1
, Qerror
, cmd_error
);
1305 while (!NILP (val
));
1313 return Feval (Vtop_level
);
1319 /* On entry to the outer level, run the startup file */
1320 if (!NILP (Vtop_level
))
1321 internal_condition_case (top_level_2
, Qerror
, cmd_error
);
1322 else if (!NILP (Vpurify_flag
))
1323 message ("Bare impure Emacs (standard Lisp code not loaded)");
1325 message ("Bare Emacs (standard Lisp code not loaded)");
1329 DEFUN ("top-level", Ftop_level
, Stop_level
, 0, 0, "",
1330 doc
: /* Exit all recursive editing levels. */)
1333 #ifdef HAVE_X_WINDOWS
1334 if (display_hourglass_p
)
1335 cancel_hourglass ();
1338 return Fthrow (Qtop_level
, Qnil
);
1341 DEFUN ("exit-recursive-edit", Fexit_recursive_edit
, Sexit_recursive_edit
, 0, 0, "",
1342 doc
: /* Exit from the innermost recursive edit or minibuffer. */)
1345 if (command_loop_level
> 0 || minibuf_level
> 0)
1346 Fthrow (Qexit
, Qnil
);
1348 error ("No recursive edit is in progress");
1352 DEFUN ("abort-recursive-edit", Fabort_recursive_edit
, Sabort_recursive_edit
, 0, 0, "",
1353 doc
: /* Abort the command that requested this recursive edit or minibuffer input. */)
1356 if (command_loop_level
> 0 || minibuf_level
> 0)
1359 error ("No recursive edit is in progress");
1363 /* This is the actual command reading loop,
1364 sans error-handling encapsulation. */
1366 static int read_key_sequence
P_ ((Lisp_Object
*, int, Lisp_Object
,
1368 void safe_run_hooks
P_ ((Lisp_Object
));
1369 static void adjust_point_for_property
P_ ((int, int));
1371 /* Cancel hourglass from protect_unwind.
1373 #ifdef HAVE_X_WINDOWS
1375 cancel_hourglass_unwind (arg
)
1378 cancel_hourglass ();
1389 Lisp_Object keybuf
[30];
1392 int prev_modiff
= 0;
1393 struct buffer
*prev_buffer
= NULL
;
1395 int was_locked
= single_kboard
;
1397 int already_adjusted
= 0;
1399 current_kboard
->Vprefix_arg
= Qnil
;
1400 current_kboard
->Vlast_prefix_arg
= Qnil
;
1401 Vdeactivate_mark
= Qnil
;
1402 waiting_for_input
= 0;
1406 this_command_key_count
= 0;
1407 this_command_key_count_reset
= 0;
1408 this_single_command_key_start
= 0;
1410 if (NILP (Vmemory_full
))
1412 /* Make sure this hook runs after commands that get errors and
1413 throw to top level. */
1414 /* Note that the value cell will never directly contain nil
1415 if the symbol is a local variable. */
1416 if (!NILP (Vpost_command_hook
) && !NILP (Vrun_hooks
))
1417 safe_run_hooks (Qpost_command_hook
);
1419 /* If displaying a message, resize the echo area window to fit
1420 that message's size exactly. */
1421 if (!NILP (echo_area_buffer
[0]))
1422 resize_echo_area_exactly ();
1424 if (!NILP (Vdeferred_action_list
))
1425 safe_run_hooks (Qdeferred_action_function
);
1427 if (!NILP (Vpost_command_idle_hook
) && !NILP (Vrun_hooks
))
1429 if (NILP (Vunread_command_events
)
1430 && NILP (Vunread_input_method_events
)
1431 && NILP (Vunread_post_input_method_events
)
1432 && NILP (Vexecuting_macro
)
1433 && !NILP (sit_for (0, post_command_idle_delay
, 0, 1, 1)))
1434 safe_run_hooks (Qpost_command_idle_hook
);
1438 Vmemory_full
= Qnil
;
1440 /* Do this after running Vpost_command_hook, for consistency. */
1441 current_kboard
->Vlast_command
= Vthis_command
;
1442 current_kboard
->Vreal_last_command
= real_this_command
;
1446 if (! FRAME_LIVE_P (XFRAME (selected_frame
)))
1449 /* Make sure the current window's buffer is selected. */
1450 if (XBUFFER (XWINDOW (selected_window
)->buffer
) != current_buffer
)
1451 set_buffer_internal (XBUFFER (XWINDOW (selected_window
)->buffer
));
1453 /* Display any malloc warning that just came out. Use while because
1454 displaying one warning can cause another. */
1456 while (pending_malloc_warning
)
1457 display_malloc_warning ();
1461 Vdeactivate_mark
= Qnil
;
1463 /* If minibuffer on and echo area in use,
1464 wait a short time and redraw minibuffer. */
1467 && !NILP (echo_area_buffer
[0])
1468 && EQ (minibuf_window
, echo_area_window
)
1469 && NUMBERP (Vminibuffer_message_timeout
))
1471 /* Bind inhibit-quit to t so that C-g gets read in
1472 rather than quitting back to the minibuffer. */
1473 int count
= SPECPDL_INDEX ();
1474 specbind (Qinhibit_quit
, Qt
);
1476 Fsit_for (Vminibuffer_message_timeout
, Qnil
, Qnil
);
1477 /* Clear the echo area. */
1479 safe_run_hooks (Qecho_area_clear_hook
);
1481 unbind_to (count
, Qnil
);
1483 /* If a C-g came in before, treat it as input now. */
1484 if (!NILP (Vquit_flag
))
1487 Vunread_command_events
= Fcons (make_number (quit_char
), Qnil
);
1492 alloca (0); /* Cause a garbage collection now */
1493 /* Since we can free the most stuff here. */
1494 #endif /* C_ALLOCA */
1497 /* Select the frame that the last event came from. Usually,
1498 switch-frame events will take care of this, but if some lisp
1499 code swallows a switch-frame event, we'll fix things up here.
1500 Is this a good idea? */
1501 if (FRAMEP (internal_last_event_frame
)
1502 && !EQ (internal_last_event_frame
, selected_frame
))
1503 Fselect_frame (internal_last_event_frame
, Qnil
);
1505 /* If it has changed current-menubar from previous value,
1506 really recompute the menubar from the value. */
1507 if (! NILP (Vlucid_menu_bar_dirty_flag
)
1508 && !NILP (Ffboundp (Qrecompute_lucid_menubar
)))
1509 call0 (Qrecompute_lucid_menubar
);
1511 before_command_key_count
= this_command_key_count
;
1512 before_command_echo_length
= echo_length ();
1514 Vthis_command
= Qnil
;
1515 real_this_command
= Qnil
;
1517 /* Read next key sequence; i gets its length. */
1518 i
= read_key_sequence (keybuf
, sizeof keybuf
/ sizeof keybuf
[0],
1521 /* A filter may have run while we were reading the input. */
1522 if (! FRAME_LIVE_P (XFRAME (selected_frame
)))
1524 if (XBUFFER (XWINDOW (selected_window
)->buffer
) != current_buffer
)
1525 set_buffer_internal (XBUFFER (XWINDOW (selected_window
)->buffer
));
1529 /* Now we have read a key sequence of length I,
1530 or else I is 0 and we found end of file. */
1532 if (i
== 0) /* End of file -- happens only in */
1533 return Qnil
; /* a kbd macro, at the end. */
1534 /* -1 means read_key_sequence got a menu that was rejected.
1535 Just loop around and read another command. */
1539 this_command_key_count
= 0;
1540 this_command_key_count_reset
= 0;
1541 this_single_command_key_start
= 0;
1545 last_command_char
= keybuf
[i
- 1];
1547 /* If the previous command tried to force a specific window-start,
1548 forget about that, in case this command moves point far away
1549 from that position. But also throw away beg_unchanged and
1550 end_unchanged information in that case, so that redisplay will
1551 update the whole window properly. */
1552 if (!NILP (XWINDOW (selected_window
)->force_start
))
1555 XWINDOW (selected_window
)->force_start
= Qnil
;
1556 b
= XBUFFER (XWINDOW (selected_window
)->buffer
);
1557 BUF_BEG_UNCHANGED (b
) = BUF_END_UNCHANGED (b
) = 0;
1560 cmd
= read_key_sequence_cmd
;
1561 if (!NILP (Vexecuting_macro
))
1563 if (!NILP (Vquit_flag
))
1565 Vexecuting_macro
= Qt
;
1566 QUIT
; /* Make some noise. */
1567 /* Will return since macro now empty. */
1571 /* Do redisplay processing after this command except in special
1572 cases identified below. */
1573 prev_buffer
= current_buffer
;
1574 prev_modiff
= MODIFF
;
1575 last_point_position
= PT
;
1576 XSETBUFFER (last_point_position_buffer
, prev_buffer
);
1578 /* By default, we adjust point to a boundary of a region that
1579 has such a property that should be treated intangible
1580 (e.g. composition, display). But, some commands will set
1581 this variable differently. */
1582 Vdisable_point_adjustment
= Qnil
;
1584 /* Process filters and timers may have messed with deactivate-mark.
1585 reset it before we execute the command. */
1586 Vdeactivate_mark
= Qnil
;
1588 /* Remap command through active keymaps */
1589 Vthis_original_command
= cmd
;
1593 if (cmd1
= Fcommand_remapping (cmd
), !NILP (cmd1
))
1597 /* Execute the command. */
1599 Vthis_command
= cmd
;
1600 real_this_command
= cmd
;
1601 /* Note that the value cell will never directly contain nil
1602 if the symbol is a local variable. */
1603 if (!NILP (Vpre_command_hook
) && !NILP (Vrun_hooks
))
1604 safe_run_hooks (Qpre_command_hook
);
1606 already_adjusted
= 0;
1608 if (NILP (Vthis_command
))
1610 /* nil means key is undefined. */
1611 Lisp_Object keys
= Fvector (i
, keybuf
);
1612 keys
= Fkey_description (keys
, Qnil
);
1614 message_with_string ("%s is undefined", keys
, 0);
1615 current_kboard
->defining_kbd_macro
= Qnil
;
1616 update_mode_lines
= 1;
1617 current_kboard
->Vprefix_arg
= Qnil
;
1621 if (NILP (current_kboard
->Vprefix_arg
) && ! no_direct
)
1623 /* In case we jump to directly_done. */
1624 Vcurrent_prefix_arg
= current_kboard
->Vprefix_arg
;
1626 /* Recognize some common commands in common situations and
1627 do them directly. */
1628 if (EQ (Vthis_command
, Qforward_char
) && PT
< ZV
)
1630 struct Lisp_Char_Table
*dp
1631 = window_display_table (XWINDOW (selected_window
));
1632 lose
= FETCH_CHAR (PT_BYTE
);
1634 if (! NILP (Vpost_command_hook
))
1635 /* Put this before calling adjust_point_for_property
1636 so it will only get called once in any case. */
1638 if (current_buffer
== prev_buffer
1639 && last_point_position
!= PT
1640 && NILP (Vdisable_point_adjustment
)
1641 && NILP (Vglobal_disable_point_adjustment
))
1642 adjust_point_for_property (last_point_position
, 0);
1643 already_adjusted
= 1;
1644 if (PT
== last_point_position
+ 1
1646 ? (VECTORP (DISP_CHAR_VECTOR (dp
, lose
))
1647 ? XVECTOR (DISP_CHAR_VECTOR (dp
, lose
))->size
== 1
1648 : (NILP (DISP_CHAR_VECTOR (dp
, lose
))
1649 && (lose
>= 0x20 && lose
< 0x7f)))
1650 : (lose
>= 0x20 && lose
< 0x7f))
1651 /* To extract the case of continuation on
1652 wide-column characters. */
1653 && (WIDTH_BY_CHAR_HEAD (FETCH_BYTE (PT_BYTE
)) == 1)
1654 && (XFASTINT (XWINDOW (selected_window
)->last_modified
)
1656 && (XFASTINT (XWINDOW (selected_window
)->last_overlay_modified
)
1658 && (XFASTINT (XWINDOW (selected_window
)->last_point
)
1660 && !windows_or_buffers_changed
1661 && EQ (current_buffer
->selective_display
, Qnil
)
1662 && !detect_input_pending ()
1663 && NILP (XWINDOW (selected_window
)->column_number_displayed
)
1664 && NILP (Vexecuting_macro
))
1665 direct_output_forward_char (1);
1668 else if (EQ (Vthis_command
, Qbackward_char
) && PT
> BEGV
)
1670 struct Lisp_Char_Table
*dp
1671 = window_display_table (XWINDOW (selected_window
));
1673 lose
= FETCH_CHAR (PT_BYTE
);
1674 if (! NILP (Vpost_command_hook
))
1676 if (current_buffer
== prev_buffer
1677 && last_point_position
!= PT
1678 && NILP (Vdisable_point_adjustment
)
1679 && NILP (Vglobal_disable_point_adjustment
))
1680 adjust_point_for_property (last_point_position
, 0);
1681 already_adjusted
= 1;
1682 if (PT
== last_point_position
- 1
1684 ? (VECTORP (DISP_CHAR_VECTOR (dp
, lose
))
1685 ? XVECTOR (DISP_CHAR_VECTOR (dp
, lose
))->size
== 1
1686 : (NILP (DISP_CHAR_VECTOR (dp
, lose
))
1687 && (lose
>= 0x20 && lose
< 0x7f)))
1688 : (lose
>= 0x20 && lose
< 0x7f))
1689 && (XFASTINT (XWINDOW (selected_window
)->last_modified
)
1691 && (XFASTINT (XWINDOW (selected_window
)->last_overlay_modified
)
1693 && (XFASTINT (XWINDOW (selected_window
)->last_point
)
1695 && !windows_or_buffers_changed
1696 && EQ (current_buffer
->selective_display
, Qnil
)
1697 && !detect_input_pending ()
1698 && NILP (XWINDOW (selected_window
)->column_number_displayed
)
1699 && NILP (Vexecuting_macro
))
1700 direct_output_forward_char (-1);
1703 else if (EQ (Vthis_command
, Qself_insert_command
)
1704 /* Try this optimization only on char keystrokes. */
1705 && NATNUMP (last_command_char
)
1706 && CHAR_VALID_P (XFASTINT (last_command_char
), 0))
1709 = translate_char (Vtranslation_table_for_input
,
1710 XFASTINT (last_command_char
), 0, 0, 0);
1712 if (NILP (Vexecuting_macro
)
1713 && !EQ (minibuf_window
, selected_window
))
1715 if (!nonundocount
|| nonundocount
>= 20)
1723 lose
= ((XFASTINT (XWINDOW (selected_window
)->last_modified
)
1725 || (XFASTINT (XWINDOW (selected_window
)->last_overlay_modified
)
1727 || (XFASTINT (XWINDOW (selected_window
)->last_point
)
1729 || MODIFF
<= SAVE_MODIFF
1730 || windows_or_buffers_changed
1731 || !EQ (current_buffer
->selective_display
, Qnil
)
1732 || detect_input_pending ()
1733 || !NILP (XWINDOW (selected_window
)->column_number_displayed
)
1734 || !NILP (Vexecuting_macro
));
1736 value
= internal_self_insert (c
, 0);
1741 if (! NILP (Vpost_command_hook
))
1742 /* Put this before calling adjust_point_for_property
1743 so it will only get called once in any case. */
1746 /* VALUE == 1 when AFTER-CHANGE functions are
1747 installed which is the case most of the time
1748 because FONT-LOCK installs one. */
1749 if (!lose
&& !value
)
1750 direct_output_for_insert (c
);
1755 /* Here for a command that isn't executed directly */
1758 #ifdef HAVE_X_WINDOWS
1759 int scount
= SPECPDL_INDEX ();
1761 if (display_hourglass_p
1762 && NILP (Vexecuting_macro
))
1764 record_unwind_protect (cancel_hourglass_unwind
, Qnil
);
1770 if (NILP (current_kboard
->Vprefix_arg
))
1772 Fcommand_execute (Vthis_command
, Qnil
, Qnil
, Qnil
);
1774 #ifdef HAVE_X_WINDOWS
1775 /* Do not check display_hourglass_p here, because
1776 Fcommand_execute could change it, but we should cancel
1777 hourglass cursor anyway.
1778 But don't cancel the hourglass within a macro
1779 just because a command in the macro finishes. */
1780 if (NILP (Vexecuting_macro
))
1781 unbind_to (scount
, Qnil
);
1786 current_kboard
->Vlast_prefix_arg
= Vcurrent_prefix_arg
;
1788 /* Note that the value cell will never directly contain nil
1789 if the symbol is a local variable. */
1790 if (!NILP (Vpost_command_hook
) && !NILP (Vrun_hooks
))
1791 safe_run_hooks (Qpost_command_hook
);
1793 /* If displaying a message, resize the echo area window to fit
1794 that message's size exactly. */
1795 if (!NILP (echo_area_buffer
[0]))
1796 resize_echo_area_exactly ();
1798 if (!NILP (Vdeferred_action_list
))
1799 safe_run_hooks (Qdeferred_action_function
);
1801 if (!NILP (Vpost_command_idle_hook
) && !NILP (Vrun_hooks
))
1803 if (NILP (Vunread_command_events
)
1804 && NILP (Vunread_input_method_events
)
1805 && NILP (Vunread_post_input_method_events
)
1806 && NILP (Vexecuting_macro
)
1807 && !NILP (sit_for (0, post_command_idle_delay
, 0, 1, 1)))
1808 safe_run_hooks (Qpost_command_idle_hook
);
1811 /* If there is a prefix argument,
1812 1) We don't want Vlast_command to be ``universal-argument''
1813 (that would be dumb), so don't set Vlast_command,
1814 2) we want to leave echoing on so that the prefix will be
1815 echoed as part of this key sequence, so don't call
1817 3) we want to leave this_command_key_count non-zero, so that
1818 read_char will realize that it is re-reading a character, and
1819 not echo it a second time.
1821 If the command didn't actually create a prefix arg,
1822 but is merely a frame event that is transparent to prefix args,
1823 then the above doesn't apply. */
1824 if (NILP (current_kboard
->Vprefix_arg
) || CONSP (last_command_char
))
1826 current_kboard
->Vlast_command
= Vthis_command
;
1827 current_kboard
->Vreal_last_command
= real_this_command
;
1829 this_command_key_count
= 0;
1830 this_command_key_count_reset
= 0;
1831 this_single_command_key_start
= 0;
1834 if (!NILP (current_buffer
->mark_active
) && !NILP (Vrun_hooks
))
1836 /* Setting transient-mark-mode to `only' is a way of
1837 turning it on for just one command. */
1839 if (EQ (Vtransient_mark_mode
, Qidentity
))
1840 Vtransient_mark_mode
= Qnil
;
1841 if (EQ (Vtransient_mark_mode
, Qonly
))
1842 Vtransient_mark_mode
= Qidentity
;
1844 if (!NILP (Vdeactivate_mark
) && !NILP (Vtransient_mark_mode
))
1846 /* We could also call `deactivate'mark'. */
1847 if (EQ (Vtransient_mark_mode
, Qlambda
))
1848 Vtransient_mark_mode
= Qnil
;
1851 current_buffer
->mark_active
= Qnil
;
1852 call1 (Vrun_hooks
, intern ("deactivate-mark-hook"));
1855 else if (current_buffer
!= prev_buffer
|| MODIFF
!= prev_modiff
)
1856 call1 (Vrun_hooks
, intern ("activate-mark-hook"));
1861 if (current_buffer
== prev_buffer
1862 && last_point_position
!= PT
1863 && NILP (Vdisable_point_adjustment
)
1864 && NILP (Vglobal_disable_point_adjustment
)
1865 && !already_adjusted
)
1866 adjust_point_for_property (last_point_position
, MODIFF
!= prev_modiff
);
1868 /* Install chars successfully executed in kbd macro. */
1870 if (!NILP (current_kboard
->defining_kbd_macro
)
1871 && NILP (current_kboard
->Vprefix_arg
))
1872 finalize_kbd_macro_chars ();
1876 any_kboard_state ();
1881 extern Lisp_Object Qcomposition
, Qdisplay
;
1883 /* Adjust point to a boundary of a region that has such a property
1884 that should be treated intangible. For the moment, we check
1885 `composition', `display' and `invisible' properties.
1886 LAST_PT is the last position of point. */
1888 extern Lisp_Object Qafter_string
, Qbefore_string
;
1889 extern Lisp_Object get_pos_property
P_ ((Lisp_Object
, Lisp_Object
, Lisp_Object
));
1892 adjust_point_for_property (last_pt
, modified
)
1897 Lisp_Object val
, overlay
, tmp
;
1898 int check_composition
= 1, check_display
= 1, check_invisible
= 1;
1901 /* FIXME: cycling is probably not necessary because these properties
1902 can't be usefully combined anyway. */
1903 while (check_composition
|| check_display
|| check_invisible
)
1905 if (check_composition
1906 && PT
> BEGV
&& PT
< ZV
1907 && get_property_and_range (PT
, Qcomposition
, &val
, &beg
, &end
, Qnil
)
1908 && COMPOSITION_VALID_P (beg
, end
, val
)
1909 && beg
< PT
/* && end > PT <- It's always the case. */
1910 && (last_pt
<= beg
|| last_pt
>= end
))
1913 SET_PT (PT
< last_pt
? beg
: end
);
1914 check_display
= check_invisible
= 1;
1916 check_composition
= 0;
1918 && PT
> BEGV
&& PT
< ZV
1919 && !NILP (val
= get_char_property_and_overlay
1920 (make_number (PT
), Qdisplay
, Qnil
, &overlay
))
1921 && display_prop_intangible_p (val
)
1922 && (!OVERLAYP (overlay
)
1923 ? get_property_and_range (PT
, Qdisplay
, &val
, &beg
, &end
, Qnil
)
1924 : (beg
= OVERLAY_POSITION (OVERLAY_START (overlay
)),
1925 end
= OVERLAY_POSITION (OVERLAY_END (overlay
))))
1926 && beg
< PT
) /* && end > PT <- It's always the case. */
1929 SET_PT (PT
< last_pt
? beg
: end
);
1930 check_composition
= check_invisible
= 1;
1933 if (check_invisible
&& PT
> BEGV
&& PT
< ZV
)
1935 int inv
, ellipsis
= 0;
1938 /* Find boundaries `beg' and `end' of the invisible area, if any. */
1940 && !NILP (val
= get_char_property_and_overlay
1941 (make_number (end
), Qinvisible
, Qnil
, &overlay
))
1942 && (inv
= TEXT_PROP_MEANS_INVISIBLE (val
)))
1944 ellipsis
= ellipsis
|| inv
> 1
1945 || (OVERLAYP (overlay
)
1946 && (!NILP (Foverlay_get (overlay
, Qafter_string
))
1947 || !NILP (Foverlay_get (overlay
, Qbefore_string
))));
1948 tmp
= Fnext_single_char_property_change
1949 (make_number (end
), Qinvisible
, Qnil
, Qnil
);
1950 end
= NATNUMP (tmp
) ? XFASTINT (tmp
) : ZV
;
1953 && !NILP (val
= get_char_property_and_overlay
1954 (make_number (beg
- 1), Qinvisible
, Qnil
, &overlay
))
1955 && (inv
= TEXT_PROP_MEANS_INVISIBLE (val
)))
1957 ellipsis
= ellipsis
|| inv
> 1
1958 || (OVERLAYP (overlay
)
1959 && (!NILP (Foverlay_get (overlay
, Qafter_string
))
1960 || !NILP (Foverlay_get (overlay
, Qbefore_string
))));
1961 tmp
= Fprevious_single_char_property_change
1962 (make_number (beg
), Qinvisible
, Qnil
, Qnil
);
1963 beg
= NATNUMP (tmp
) ? XFASTINT (tmp
) : BEGV
;
1966 /* Move away from the inside area. */
1967 if (beg
< PT
&& end
> PT
)
1969 SET_PT ((orig_pt
== PT
&& (last_pt
< beg
|| last_pt
> end
))
1970 /* We haven't moved yet (so we don't need to fear
1971 infinite-looping) and we were outside the range
1972 before (so either end of the range still corresponds
1973 to a move in the right direction): pretend we moved
1974 less than we actually did, so that we still have
1975 more freedom below in choosing which end of the range
1977 ? (orig_pt
= -1, PT
< last_pt
? end
: beg
)
1978 /* We either have moved already or the last point
1979 was already in the range: we don't get to choose
1980 which end of the range we have to go to. */
1981 : (PT
< last_pt
? beg
: end
));
1982 check_composition
= check_display
= 1;
1984 #if 0 /* This assertion isn't correct, because SET_PT may end up setting
1985 the point to something other than its argument, due to
1986 point-motion hooks, intangibility, etc. */
1987 xassert (PT
== beg
|| PT
== end
);
1990 /* Pretend the area doesn't exist if the buffer is not
1992 if (!modified
&& !ellipsis
&& beg
< end
)
1994 if (last_pt
== beg
&& PT
== end
&& end
< ZV
)
1995 (check_composition
= check_display
= 1, SET_PT (end
+ 1));
1996 else if (last_pt
== end
&& PT
== beg
&& beg
> BEGV
)
1997 (check_composition
= check_display
= 1, SET_PT (beg
- 1));
1998 else if (PT
== ((PT
< last_pt
) ? beg
: end
))
1999 /* We've already moved as far as we can. Trying to go
2000 to the other end would mean moving backwards and thus
2001 could lead to an infinite loop. */
2003 else if (val
= get_pos_property (make_number (PT
),
2005 TEXT_PROP_MEANS_INVISIBLE (val
)
2006 && (val
= get_pos_property
2007 (make_number (PT
== beg
? end
: beg
),
2009 !TEXT_PROP_MEANS_INVISIBLE (val
)))
2010 (check_composition
= check_display
= 1,
2011 SET_PT (PT
== beg
? end
: beg
));
2014 check_invisible
= 0;
2018 /* Subroutine for safe_run_hooks: run the hook HOOK. */
2021 safe_run_hooks_1 (hook
)
2024 return call1 (Vrun_hooks
, Vinhibit_quit
);
2027 /* Subroutine for safe_run_hooks: handle an error by clearing out the hook. */
2030 safe_run_hooks_error (data
)
2033 Lisp_Object args
[3];
2034 args
[0] = build_string ("Error in %s: %s");
2035 args
[1] = Vinhibit_quit
;
2038 return Fset (Vinhibit_quit
, Qnil
);
2041 /* If we get an error while running the hook, cause the hook variable
2042 to be nil. Also inhibit quits, so that C-g won't cause the hook
2043 to mysteriously evaporate. */
2046 safe_run_hooks (hook
)
2049 int count
= SPECPDL_INDEX ();
2050 specbind (Qinhibit_quit
, hook
);
2052 internal_condition_case (safe_run_hooks_1
, Qt
, safe_run_hooks_error
);
2054 unbind_to (count
, Qnil
);
2058 /* Number of seconds between polling for input. This is a Lisp
2059 variable that can be bound. */
2061 EMACS_INT polling_period
;
2063 /* Nonzero means polling for input is temporarily suppressed. */
2065 int poll_suppress_count
;
2067 /* Asynchronous timer for polling. */
2069 struct atimer
*poll_timer
;
2072 #ifdef POLL_FOR_INPUT
2074 /* Poll for input, so what we catch a C-g if it comes in. This
2075 function is called from x_make_frame_visible, see comment
2081 if (interrupt_input_blocked
== 0
2082 && !waiting_for_input
)
2083 read_avail_input (0);
2086 /* Timer callback function for poll_timer. TIMER is equal to
2090 poll_for_input (timer
)
2091 struct atimer
*timer
;
2093 if (poll_suppress_count
== 0)
2094 poll_for_input_1 ();
2097 #endif /* POLL_FOR_INPUT */
2099 /* Begin signals to poll for input, if they are appropriate.
2100 This function is called unconditionally from various places. */
2105 #ifdef POLL_FOR_INPUT
2106 /* XXX This condition was (read_socket_hook && !interrupt_input),
2107 but read_socket_hook is not global anymore. Let's pretend that
2109 if (!interrupt_input
)
2111 /* Turn alarm handling on unconditionally. It might have
2112 been turned off in process.c. */
2113 turn_on_atimers (1);
2115 /* If poll timer doesn't exist, are we need one with
2116 a different interval, start a new one. */
2117 if (poll_timer
== NULL
2118 || EMACS_SECS (poll_timer
->interval
) != polling_period
)
2120 EMACS_TIME interval
;
2123 cancel_atimer (poll_timer
);
2125 EMACS_SET_SECS_USECS (interval
, polling_period
, 0);
2126 poll_timer
= start_atimer (ATIMER_CONTINUOUS
, interval
,
2127 poll_for_input
, NULL
);
2130 /* Let the timer's callback function poll for input
2131 if this becomes zero. */
2132 --poll_suppress_count
;
2137 /* Nonzero if we are using polling to handle input asynchronously. */
2140 input_polling_used ()
2142 #ifdef POLL_FOR_INPUT
2143 /* XXX This condition was (read_socket_hook && !interrupt_input),
2144 but read_socket_hook is not global anymore. Let's pretend that
2146 return !interrupt_input
;
2152 /* Turn off polling. */
2157 #ifdef POLL_FOR_INPUT
2158 /* XXX This condition was (read_socket_hook && !interrupt_input),
2159 but read_socket_hook is not global anymore. Let's pretend that
2161 if (!interrupt_input
)
2162 ++poll_suppress_count
;
2166 /* Set the value of poll_suppress_count to COUNT
2167 and start or stop polling accordingly. */
2170 set_poll_suppress_count (count
)
2173 #ifdef POLL_FOR_INPUT
2174 if (count
== 0 && poll_suppress_count
!= 0)
2176 poll_suppress_count
= 1;
2179 else if (count
!= 0 && poll_suppress_count
== 0)
2183 poll_suppress_count
= count
;
2187 /* Bind polling_period to a value at least N.
2188 But don't decrease it. */
2191 bind_polling_period (n
)
2194 #ifdef POLL_FOR_INPUT
2195 int new = polling_period
;
2200 stop_other_atimers (poll_timer
);
2202 specbind (Qpolling_period
, make_number (new));
2203 /* Start a new alarm with the new period. */
2208 /* Apply the control modifier to CHARACTER. */
2214 /* Save the upper bits here. */
2215 int upper
= c
& ~0177;
2219 /* Everything in the columns containing the upper-case letters
2220 denotes a control character. */
2221 if (c
>= 0100 && c
< 0140)
2225 /* Set the shift modifier for a control char
2226 made from a shifted letter. But only for letters! */
2227 if (oc
>= 'A' && oc
<= 'Z')
2228 c
|= shift_modifier
;
2231 /* The lower-case letters denote control characters too. */
2232 else if (c
>= 'a' && c
<= 'z')
2235 /* Include the bits for control and shift
2236 only if the basic ASCII code can't indicate them. */
2240 /* Replace the high bits. */
2241 c
|= (upper
& ~ctrl_modifier
);
2246 /* Display help echo in the echo area.
2248 HELP a string means display that string, HELP nil means clear the
2249 help echo. If HELP is a function, call it with OBJECT and POS as
2250 arguments; the function should return a help string or nil for
2251 none. For all other types of HELP evaluate it to obtain a string.
2253 WINDOW is the window in which the help was generated, if any.
2254 It is nil if not in a window.
2256 If OBJECT is a buffer, POS is the position in the buffer where the
2257 `help-echo' text property was found.
2259 If OBJECT is an overlay, that overlay has a `help-echo' property,
2260 and POS is the position in the overlay's buffer under the mouse.
2262 If OBJECT is a string (an overlay string or a string displayed with
2263 the `display' property). POS is the position in that string under
2266 OK_TO_OVERWRITE_KEYSTROKE_ECHO non-zero means it's okay if the help
2267 echo overwrites a keystroke echo currently displayed in the echo
2270 Note: this function may only be called with HELP nil or a string
2271 from X code running asynchronously. */
2274 show_help_echo (help
, window
, object
, pos
, ok_to_overwrite_keystroke_echo
)
2275 Lisp_Object help
, window
, object
, pos
;
2276 int ok_to_overwrite_keystroke_echo
;
2278 if (!NILP (help
) && !STRINGP (help
))
2280 if (FUNCTIONP (help
))
2282 Lisp_Object args
[4];
2287 help
= safe_call (4, args
);
2290 help
= safe_eval (help
);
2292 if (!STRINGP (help
))
2296 if (STRINGP (help
) || NILP (help
))
2298 if (!NILP (Vshow_help_function
))
2299 call1 (Vshow_help_function
, help
);
2300 else if (/* Don't overwrite minibuffer contents. */
2301 !MINI_WINDOW_P (XWINDOW (selected_window
))
2302 /* Don't overwrite a keystroke echo. */
2303 && (NILP (echo_message_buffer
)
2304 || ok_to_overwrite_keystroke_echo
)
2305 /* Don't overwrite a prompt. */
2306 && !cursor_in_echo_area
)
2310 int count
= SPECPDL_INDEX ();
2312 if (!help_echo_showing_p
)
2313 Vpre_help_message
= current_message ();
2315 specbind (Qmessage_truncate_lines
, Qt
);
2316 message3_nolog (help
, SBYTES (help
),
2317 STRING_MULTIBYTE (help
));
2318 unbind_to (count
, Qnil
);
2320 else if (STRINGP (Vpre_help_message
))
2322 message3_nolog (Vpre_help_message
,
2323 SBYTES (Vpre_help_message
),
2324 STRING_MULTIBYTE (Vpre_help_message
));
2325 Vpre_help_message
= Qnil
;
2331 help_echo_showing_p
= STRINGP (help
);
2337 /* Input of single characters from keyboard */
2339 Lisp_Object
print_help ();
2340 static Lisp_Object
kbd_buffer_get_event ();
2341 static void record_char ();
2344 static jmp_buf wrong_kboard_jmpbuf
;
2347 #define STOP_POLLING \
2348 do { if (! polling_stopped_here) stop_polling (); \
2349 polling_stopped_here = 1; } while (0)
2351 #define RESUME_POLLING \
2352 do { if (polling_stopped_here) start_polling (); \
2353 polling_stopped_here = 0; } while (0)
2355 /* read a character from the keyboard; call the redisplay if needed */
2356 /* commandflag 0 means do not do auto-saving, but do do redisplay.
2357 -1 means do not do redisplay, but do do autosaving.
2360 /* The arguments MAPS and NMAPS are for menu prompting.
2361 MAPS is an array of keymaps; NMAPS is the length of MAPS.
2363 PREV_EVENT is the previous input event, or nil if we are reading
2364 the first event of a key sequence (or not reading a key sequence).
2365 If PREV_EVENT is t, that is a "magic" value that says
2366 not to run input methods, but in other respects to act as if
2367 not reading a key sequence.
2369 If USED_MOUSE_MENU is non-null, then we set *USED_MOUSE_MENU to 1
2370 if we used a mouse menu to read the input, or zero otherwise. If
2371 USED_MOUSE_MENU is null, we don't dereference it.
2373 Value is t if we showed a menu and the user rejected it. */
2376 read_char (commandflag
, nmaps
, maps
, prev_event
, used_mouse_menu
)
2380 Lisp_Object prev_event
;
2381 int *used_mouse_menu
;
2383 volatile Lisp_Object c
;
2385 jmp_buf local_getcjmp
;
2387 volatile int key_already_recorded
= 0;
2388 Lisp_Object tem
, save
;
2389 volatile Lisp_Object previous_echo_area_message
;
2390 volatile Lisp_Object also_record
;
2391 volatile int reread
;
2392 struct gcpro gcpro1
, gcpro2
;
2393 int polling_stopped_here
= 0;
2397 #if 0 /* This was commented out as part of fixing echo for C-u left. */
2398 before_command_key_count
= this_command_key_count
;
2399 before_command_echo_length
= echo_length ();
2402 previous_echo_area_message
= Qnil
;
2404 GCPRO2 (c
, previous_echo_area_message
);
2409 if (CONSP (Vunread_post_input_method_events
))
2411 c
= XCAR (Vunread_post_input_method_events
);
2412 Vunread_post_input_method_events
2413 = XCDR (Vunread_post_input_method_events
);
2415 /* Undo what read_char_x_menu_prompt did when it unread
2416 additional keys returned by Fx_popup_menu. */
2418 && (SYMBOLP (XCAR (c
)) || INTEGERP (XCAR (c
)))
2426 if (unread_command_char
!= -1)
2428 XSETINT (c
, unread_command_char
);
2429 unread_command_char
= -1;
2435 if (CONSP (Vunread_command_events
))
2437 c
= XCAR (Vunread_command_events
);
2438 Vunread_command_events
= XCDR (Vunread_command_events
);
2440 /* Undo what read_char_x_menu_prompt did when it unread
2441 additional keys returned by Fx_popup_menu. */
2443 && EQ (XCDR (c
), Qdisabled
)
2444 && (SYMBOLP (XCAR (c
)) || INTEGERP (XCAR (c
))))
2447 /* If the queued event is something that used the mouse,
2448 set used_mouse_menu accordingly. */
2450 && (EQ (c
, Qtool_bar
) || EQ (c
, Qmenu_bar
)))
2451 *used_mouse_menu
= 1;
2454 goto reread_for_input_method
;
2457 if (CONSP (Vunread_input_method_events
))
2459 c
= XCAR (Vunread_input_method_events
);
2460 Vunread_input_method_events
= XCDR (Vunread_input_method_events
);
2462 /* Undo what read_char_x_menu_prompt did when it unread
2463 additional keys returned by Fx_popup_menu. */
2465 && (SYMBOLP (XCAR (c
)) || INTEGERP (XCAR (c
)))
2469 goto reread_for_input_method
;
2472 this_command_key_count_reset
= 0;
2474 if (!NILP (Vexecuting_macro
))
2476 /* We set this to Qmacro; since that's not a frame, nobody will
2477 try to switch frames on us, and the selected window will
2480 Since this event came from a macro, it would be misleading to
2481 leave internal_last_event_frame set to wherever the last
2482 real event came from. Normally, a switch-frame event selects
2483 internal_last_event_frame after each command is read, but
2484 events read from a macro should never cause a new frame to be
2486 Vlast_event_frame
= internal_last_event_frame
= Qmacro
;
2488 /* Exit the macro if we are at the end.
2489 Also, some things replace the macro with t
2490 to force an early exit. */
2491 if (EQ (Vexecuting_macro
, Qt
)
2492 || executing_macro_index
>= XFASTINT (Flength (Vexecuting_macro
)))
2498 c
= Faref (Vexecuting_macro
, make_number (executing_macro_index
));
2499 if (STRINGP (Vexecuting_macro
)
2500 && (XINT (c
) & 0x80))
2501 XSETFASTINT (c
, CHAR_META
| (XINT (c
) & ~0x80));
2503 executing_macro_index
++;
2508 if (!NILP (unread_switch_frame
))
2510 c
= unread_switch_frame
;
2511 unread_switch_frame
= Qnil
;
2513 /* This event should make it into this_command_keys, and get echoed
2514 again, so we do not set `reread'. */
2518 /* if redisplay was requested */
2519 if (commandflag
>= 0)
2521 /* If there is pending input, process any events which are not
2522 user-visible, such as X selection_request events. */
2524 || detect_input_pending_run_timers (0))
2525 swallow_events (0); /* may clear input_pending */
2527 /* Redisplay if no pending input. */
2528 while (!input_pending
)
2530 if (help_echo_showing_p
&& !EQ (selected_window
, minibuf_window
))
2531 redisplay_preserve_echo_area (5);
2536 /* Normal case: no input arrived during redisplay. */
2539 /* Input arrived and pre-empted redisplay.
2540 Process any events which are not user-visible. */
2542 /* If that cleared input_pending, try again to redisplay. */
2546 /* Message turns off echoing unless more keystrokes turn it on again.
2548 The code in 20.x for the condition was
2550 1. echo_area_glyphs && *echo_area_glyphs
2551 2. && echo_area_glyphs != current_kboard->echobuf
2552 3. && ok_to_echo_at_next_pause != echo_area_glyphs
2554 (1) means there's a current message displayed
2556 (2) means it's not the message from echoing from the current
2559 (3) There's only one place in 20.x where ok_to_echo_at_next_pause
2560 is set to a non-null value. This is done in read_char and it is
2561 set to echo_area_glyphs after a call to echo_char. That means
2562 ok_to_echo_at_next_pause is either null or
2563 current_kboard->echobuf with the appropriate current_kboard at
2566 So, condition (3) means in clear text ok_to_echo_at_next_pause
2567 must be either null, or the current message isn't from echoing at
2568 all, or it's from echoing from a different kboard than the
2571 if (/* There currently is something in the echo area. */
2572 !NILP (echo_area_buffer
[0])
2573 && (/* And it's either not from echoing. */
2574 !EQ (echo_area_buffer
[0], echo_message_buffer
)
2575 /* Or it's an echo from a different kboard. */
2576 || echo_kboard
!= current_kboard
2577 /* Or we explicitly allow overwriting whatever there is. */
2578 || ok_to_echo_at_next_pause
== NULL
))
2583 /* Try reading a character via menu prompting in the minibuf.
2584 Try this before the sit-for, because the sit-for
2585 would do the wrong thing if we are supposed to do
2586 menu prompting. If EVENT_HAS_PARAMETERS then we are reading
2587 after a mouse event so don't try a minibuf menu. */
2589 if (nmaps
> 0 && INTERACTIVE
2590 && !NILP (prev_event
) && ! EVENT_HAS_PARAMETERS (prev_event
)
2591 /* Don't bring up a menu if we already have another event. */
2592 && NILP (Vunread_command_events
)
2593 && unread_command_char
< 0
2594 && !detect_input_pending_run_timers (0))
2596 c
= read_char_minibuf_menu_prompt (commandflag
, nmaps
, maps
);
2599 key_already_recorded
= 1;
2604 /* Make a longjmp point for quits to use, but don't alter getcjmp just yet.
2605 We will do that below, temporarily for short sections of code,
2606 when appropriate. local_getcjmp must be in effect
2607 around any call to sit_for or kbd_buffer_get_event;
2608 it *must not* be in effect when we call redisplay. */
2610 if (_setjmp (local_getcjmp
))
2612 XSETINT (c
, quit_char
);
2613 internal_last_event_frame
= selected_frame
;
2614 Vlast_event_frame
= internal_last_event_frame
;
2615 /* If we report the quit char as an event,
2616 don't do so more than once. */
2617 if (!NILP (Vinhibit_quit
))
2622 KBOARD
*kb
= FRAME_KBOARD (XFRAME (selected_frame
));
2623 if (kb
!= current_kboard
)
2625 Lisp_Object link
= kb
->kbd_queue
;
2626 /* We shouldn't get here if we were in single-kboard mode! */
2631 while (CONSP (XCDR (link
)))
2633 if (!NILP (XCDR (link
)))
2637 kb
->kbd_queue
= Fcons (c
, Qnil
);
2639 XSETCDR (link
, Fcons (c
, Qnil
));
2640 kb
->kbd_queue_has_data
= 1;
2641 current_kboard
= kb
;
2642 /* This is going to exit from read_char
2643 so we had better get rid of this frame's stuff. */
2645 longjmp (wrong_kboard_jmpbuf
, 1);
2652 timer_start_idle ();
2654 /* If in middle of key sequence and minibuffer not active,
2655 start echoing if enough time elapses. */
2657 if (minibuf_level
== 0
2658 && !current_kboard
->immediate_echo
2659 && this_command_key_count
> 0
2661 && (FLOATP (Vecho_keystrokes
) || INTEGERP (Vecho_keystrokes
))
2662 && NILP (Fzerop (Vecho_keystrokes
))
2663 && (/* No message. */
2664 NILP (echo_area_buffer
[0])
2665 /* Or empty message. */
2666 || (BUF_BEG (XBUFFER (echo_area_buffer
[0]))
2667 == BUF_Z (XBUFFER (echo_area_buffer
[0])))
2668 /* Or already echoing from same kboard. */
2669 || (echo_kboard
&& ok_to_echo_at_next_pause
== echo_kboard
)
2670 /* Or not echoing before and echoing allowed. */
2671 || (!echo_kboard
&& ok_to_echo_at_next_pause
)))
2675 /* After a mouse event, start echoing right away.
2676 This is because we are probably about to display a menu,
2677 and we don't want to delay before doing so. */
2678 if (EVENT_HAS_PARAMETERS (prev_event
))
2683 double duration
= extract_float (Vecho_keystrokes
);
2684 sec
= (int) duration
;
2685 usec
= (duration
- sec
) * 1000000;
2686 save_getcjmp (save_jump
);
2687 restore_getcjmp (local_getcjmp
);
2688 tem0
= sit_for (sec
, usec
, 1, 1, 0);
2689 restore_getcjmp (save_jump
);
2691 && ! CONSP (Vunread_command_events
))
2696 /* Maybe auto save due to number of keystrokes. */
2698 if (commandflag
!= 0
2699 && auto_save_interval
> 0
2700 && num_nonmacro_input_events
- last_auto_save
> max (auto_save_interval
, 20)
2701 && !detect_input_pending_run_timers (0))
2703 Fdo_auto_save (Qnil
, Qnil
);
2704 /* Hooks can actually change some buffers in auto save. */
2708 /* Try reading using an X menu.
2709 This is never confused with reading using the minibuf
2710 because the recursive call of read_char in read_char_minibuf_menu_prompt
2711 does not pass on any keymaps. */
2713 if (nmaps
> 0 && INTERACTIVE
2714 && !NILP (prev_event
)
2715 && EVENT_HAS_PARAMETERS (prev_event
)
2716 && !EQ (XCAR (prev_event
), Qmenu_bar
)
2717 && !EQ (XCAR (prev_event
), Qtool_bar
)
2718 /* Don't bring up a menu if we already have another event. */
2719 && NILP (Vunread_command_events
)
2720 && unread_command_char
< 0)
2722 c
= read_char_x_menu_prompt (nmaps
, maps
, prev_event
, used_mouse_menu
);
2724 /* Now that we have read an event, Emacs is not idle. */
2730 /* Maybe autosave and/or garbage collect due to idleness. */
2732 if (INTERACTIVE
&& NILP (c
))
2734 int delay_level
, buffer_size
;
2736 /* Slow down auto saves logarithmically in size of current buffer,
2737 and garbage collect while we're at it. */
2738 if (! MINI_WINDOW_P (XWINDOW (selected_window
)))
2739 last_non_minibuf_size
= Z
- BEG
;
2740 buffer_size
= (last_non_minibuf_size
>> 8) + 1;
2742 while (buffer_size
> 64)
2743 delay_level
++, buffer_size
-= buffer_size
>> 2;
2744 if (delay_level
< 4) delay_level
= 4;
2745 /* delay_level is 4 for files under around 50k, 7 at 100k,
2746 9 at 200k, 11 at 300k, and 12 at 500k. It is 15 at 1 meg. */
2748 /* Auto save if enough time goes by without input. */
2749 if (commandflag
!= 0
2750 && num_nonmacro_input_events
> last_auto_save
2751 && INTEGERP (Vauto_save_timeout
)
2752 && XINT (Vauto_save_timeout
) > 0)
2756 save_getcjmp (save_jump
);
2757 restore_getcjmp (local_getcjmp
);
2758 tem0
= sit_for (delay_level
* XFASTINT (Vauto_save_timeout
) / 4,
2760 restore_getcjmp (save_jump
);
2763 && ! CONSP (Vunread_command_events
))
2765 Fdo_auto_save (Qnil
, Qnil
);
2767 /* If we have auto-saved and there is still no input
2768 available, garbage collect if there has been enough
2769 consing going on to make it worthwhile. */
2770 if (!detect_input_pending_run_timers (0)
2771 && consing_since_gc
> gc_cons_threshold
/ 2)
2772 Fgarbage_collect ();
2779 /* If this has become non-nil here, it has been set by a timer
2780 or sentinel or filter. */
2781 if (CONSP (Vunread_command_events
))
2783 c
= XCAR (Vunread_command_events
);
2784 Vunread_command_events
= XCDR (Vunread_command_events
);
2787 /* Read something from current KBOARD's side queue, if possible. */
2791 if (current_kboard
->kbd_queue_has_data
)
2793 if (!CONSP (current_kboard
->kbd_queue
))
2795 c
= XCAR (current_kboard
->kbd_queue
);
2796 current_kboard
->kbd_queue
2797 = XCDR (current_kboard
->kbd_queue
);
2798 if (NILP (current_kboard
->kbd_queue
))
2799 current_kboard
->kbd_queue_has_data
= 0;
2800 input_pending
= readable_events (0);
2801 if (EVENT_HAS_PARAMETERS (c
)
2802 && EQ (EVENT_HEAD_KIND (EVENT_HEAD (c
)), Qswitch_frame
))
2803 internal_last_event_frame
= XCAR (XCDR (c
));
2804 Vlast_event_frame
= internal_last_event_frame
;
2809 /* If current_kboard's side queue is empty check the other kboards.
2810 If one of them has data that we have not yet seen here,
2811 switch to it and process the data waiting for it.
2813 Note: if the events queued up for another kboard
2814 have already been seen here, and therefore are not a complete command,
2815 the kbd_queue_has_data field is 0, so we skip that kboard here.
2816 That's to avoid an infinite loop switching between kboards here. */
2817 if (NILP (c
) && !single_kboard
)
2820 for (kb
= all_kboards
; kb
; kb
= kb
->next_kboard
)
2821 if (kb
->kbd_queue_has_data
)
2823 current_kboard
= kb
;
2824 /* This is going to exit from read_char
2825 so we had better get rid of this frame's stuff. */
2827 longjmp (wrong_kboard_jmpbuf
, 1);
2836 /* Finally, we read from the main queue,
2837 and if that gives us something we can't use yet, we put it on the
2838 appropriate side queue and try again. */
2844 /* Actually read a character, waiting if necessary. */
2845 save_getcjmp (save_jump
);
2846 restore_getcjmp (local_getcjmp
);
2847 timer_start_idle ();
2848 c
= kbd_buffer_get_event (&kb
, used_mouse_menu
);
2849 restore_getcjmp (save_jump
);
2852 if (! NILP (c
) && (kb
!= current_kboard
))
2854 Lisp_Object link
= kb
->kbd_queue
;
2857 while (CONSP (XCDR (link
)))
2859 if (!NILP (XCDR (link
)))
2863 kb
->kbd_queue
= Fcons (c
, Qnil
);
2865 XSETCDR (link
, Fcons (c
, Qnil
));
2866 kb
->kbd_queue_has_data
= 1;
2870 current_kboard
= kb
;
2871 /* This is going to exit from read_char
2872 so we had better get rid of this frame's stuff. */
2874 longjmp (wrong_kboard_jmpbuf
, 1);
2879 /* Terminate Emacs in batch mode if at eof. */
2880 if (noninteractive
&& INTEGERP (c
) && XINT (c
) < 0)
2881 Fkill_emacs (make_number (1));
2885 /* Add in any extra modifiers, where appropriate. */
2886 if ((extra_keyboard_modifiers
& CHAR_CTL
)
2887 || ((extra_keyboard_modifiers
& 0177) < ' '
2888 && (extra_keyboard_modifiers
& 0177) != 0))
2889 XSETINT (c
, make_ctrl_char (XINT (c
)));
2891 /* Transfer any other modifier bits directly from
2892 extra_keyboard_modifiers to c. Ignore the actual character code
2893 in the low 16 bits of extra_keyboard_modifiers. */
2894 XSETINT (c
, XINT (c
) | (extra_keyboard_modifiers
& ~0xff7f & ~CHAR_CTL
));
2904 if (commandflag
>= 0
2905 && !input_pending
&& !detect_input_pending_run_timers (0))
2913 /* Buffer switch events are only for internal wakeups
2914 so don't show them to the user.
2915 Also, don't record a key if we already did. */
2916 if (BUFFERP (c
) || key_already_recorded
)
2919 /* Process special events within read_char
2920 and loop around to read another event. */
2923 tem
= access_keymap (get_keymap (Vspecial_event_map
, 0, 1), c
, 0, 0, 1);
2928 int was_locked
= single_kboard
;
2930 last_input_char
= c
;
2931 Fcommand_execute (tem
, Qnil
, Fvector (1, &last_input_char
), Qt
);
2933 if (CONSP (c
) && EQ (XCAR (c
), Qselect_window
))
2934 /* We stopped being idle for this event; undo that. This
2935 prevents automatic window selection (under
2936 mouse_autoselect_window from acting as a real input event, for
2937 example banishing the mouse under mouse-avoidance-mode. */
2938 timer_resume_idle ();
2940 /* Resume allowing input from any kboard, if that was true before. */
2942 any_kboard_state ();
2947 /* Handle things that only apply to characters. */
2950 /* If kbd_buffer_get_event gave us an EOF, return that. */
2954 if ((STRINGP (Vkeyboard_translate_table
)
2955 && SCHARS (Vkeyboard_translate_table
) > (unsigned) XFASTINT (c
))
2956 || (VECTORP (Vkeyboard_translate_table
)
2957 && XVECTOR (Vkeyboard_translate_table
)->size
> (unsigned) XFASTINT (c
))
2958 || (CHAR_TABLE_P (Vkeyboard_translate_table
)
2959 && CHAR_VALID_P (XINT (c
), 0)))
2962 d
= Faref (Vkeyboard_translate_table
, c
);
2963 /* nil in keyboard-translate-table means no translation. */
2969 /* If this event is a mouse click in the menu bar,
2970 return just menu-bar for now. Modify the mouse click event
2971 so we won't do this twice, then queue it up. */
2972 if (EVENT_HAS_PARAMETERS (c
)
2974 && CONSP (EVENT_START (c
))
2975 && CONSP (XCDR (EVENT_START (c
))))
2979 posn
= POSN_POSN (EVENT_START (c
));
2980 /* Handle menu-bar events:
2981 insert the dummy prefix event `menu-bar'. */
2982 if (EQ (posn
, Qmenu_bar
) || EQ (posn
, Qtool_bar
))
2984 /* Change menu-bar to (menu-bar) as the event "position". */
2985 POSN_SET_POSN (EVENT_START (c
), Fcons (posn
, Qnil
));
2988 Vunread_command_events
= Fcons (c
, Vunread_command_events
);
2993 /* Store these characters into recent_keys, the dribble file if any,
2994 and the keyboard macro being defined, if any. */
2996 if (! NILP (also_record
))
2997 record_char (also_record
);
2999 /* Wipe the echo area.
3000 But first, if we are about to use an input method,
3001 save the echo area contents for it to refer to. */
3003 && ! NILP (Vinput_method_function
)
3004 && (unsigned) XINT (c
) >= ' '
3005 && (unsigned) XINT (c
) != 127
3006 && (unsigned) XINT (c
) < 256)
3008 previous_echo_area_message
= Fcurrent_message ();
3009 Vinput_method_previous_message
= previous_echo_area_message
;
3012 /* Now wipe the echo area, except for help events which do their
3013 own stuff with the echo area. */
3015 || (!(EQ (Qhelp_echo
, XCAR (c
)))
3016 && !(EQ (Qswitch_frame
, XCAR (c
)))))
3018 if (!NILP (echo_area_buffer
[0]))
3019 safe_run_hooks (Qecho_area_clear_hook
);
3020 clear_message (1, 0);
3023 reread_for_input_method
:
3025 /* Pass this to the input method, if appropriate. */
3027 && ! NILP (Vinput_method_function
)
3028 /* Don't run the input method within a key sequence,
3029 after the first event of the key sequence. */
3030 && NILP (prev_event
)
3031 && (unsigned) XINT (c
) >= ' '
3032 && (unsigned) XINT (c
) != 127
3033 && (unsigned) XINT (c
) < 256)
3036 int key_count
, key_count_reset
;
3037 struct gcpro gcpro1
;
3038 int count
= SPECPDL_INDEX ();
3040 /* Save the echo status. */
3041 int saved_immediate_echo
= current_kboard
->immediate_echo
;
3042 struct kboard
*saved_ok_to_echo
= ok_to_echo_at_next_pause
;
3043 Lisp_Object saved_echo_string
= current_kboard
->echo_string
;
3044 int saved_echo_after_prompt
= current_kboard
->echo_after_prompt
;
3047 if (before_command_restore_flag
)
3049 this_command_key_count
= before_command_key_count_1
;
3050 if (this_command_key_count
< this_single_command_key_start
)
3051 this_single_command_key_start
= this_command_key_count
;
3052 echo_truncate (before_command_echo_length_1
);
3053 before_command_restore_flag
= 0;
3057 /* Save the this_command_keys status. */
3058 key_count
= this_command_key_count
;
3059 key_count_reset
= this_command_key_count_reset
;
3062 keys
= Fcopy_sequence (this_command_keys
);
3067 /* Clear out this_command_keys. */
3068 this_command_key_count
= 0;
3069 this_command_key_count_reset
= 0;
3071 /* Now wipe the echo area. */
3072 if (!NILP (echo_area_buffer
[0]))
3073 safe_run_hooks (Qecho_area_clear_hook
);
3074 clear_message (1, 0);
3077 /* If we are not reading a key sequence,
3078 never use the echo area. */
3081 specbind (Qinput_method_use_echo_area
, Qt
);
3084 /* Call the input method. */
3085 tem
= call1 (Vinput_method_function
, c
);
3087 tem
= unbind_to (count
, tem
);
3089 /* Restore the saved echoing state
3090 and this_command_keys state. */
3091 this_command_key_count
= key_count
;
3092 this_command_key_count_reset
= key_count_reset
;
3094 this_command_keys
= keys
;
3097 ok_to_echo_at_next_pause
= saved_ok_to_echo
;
3098 current_kboard
->echo_string
= saved_echo_string
;
3099 current_kboard
->echo_after_prompt
= saved_echo_after_prompt
;
3100 if (saved_immediate_echo
)
3105 /* The input method can return no events. */
3108 /* Bring back the previous message, if any. */
3109 if (! NILP (previous_echo_area_message
))
3110 message_with_string ("%s", previous_echo_area_message
, 0);
3113 /* It returned one event or more. */
3115 Vunread_post_input_method_events
3116 = nconc2 (XCDR (tem
), Vunread_post_input_method_events
);
3121 /* Display help if not echoing. */
3122 if (CONSP (c
) && EQ (XCAR (c
), Qhelp_echo
))
3124 /* (help-echo FRAME HELP WINDOW OBJECT POS). */
3125 Lisp_Object help
, object
, position
, window
, tem
;
3127 tem
= Fcdr (XCDR (c
));
3130 window
= Fcar (tem
);
3132 object
= Fcar (tem
);
3134 position
= Fcar (tem
);
3136 show_help_echo (help
, window
, object
, position
, 0);
3138 /* We stopped being idle for this event; undo that. */
3139 timer_resume_idle ();
3143 if (! reread
|| this_command_key_count
== 0
3144 || this_command_key_count_reset
)
3147 /* Don't echo mouse motion events. */
3148 if ((FLOATP (Vecho_keystrokes
) || INTEGERP (Vecho_keystrokes
))
3149 && NILP (Fzerop (Vecho_keystrokes
))
3150 && ! (EVENT_HAS_PARAMETERS (c
)
3151 && EQ (EVENT_HEAD_KIND (EVENT_HEAD (c
)), Qmouse_movement
)))
3154 if (! NILP (also_record
))
3155 echo_char (also_record
);
3156 /* Once we reread a character, echoing can happen
3157 the next time we pause to read a new one. */
3158 ok_to_echo_at_next_pause
= current_kboard
;
3161 /* Record this character as part of the current key. */
3162 add_command_key (c
);
3163 if (! NILP (also_record
))
3164 add_command_key (also_record
);
3167 last_input_char
= c
;
3170 /* Process the help character specially if enabled */
3171 if (!NILP (Vhelp_form
) && help_char_p (c
))
3174 count
= SPECPDL_INDEX ();
3176 record_unwind_protect (Fset_window_configuration
,
3177 Fcurrent_window_configuration (Qnil
));
3179 tem0
= Feval (Vhelp_form
);
3181 internal_with_output_to_temp_buffer ("*Help*", print_help
, tem0
);
3185 c
= read_char (0, 0, 0, Qnil
, 0);
3186 while (BUFFERP (c
));
3187 /* Remove the help from the frame */
3188 unbind_to (count
, Qnil
);
3191 if (EQ (c
, make_number (040)))
3195 c
= read_char (0, 0, 0, Qnil
, 0);
3196 while (BUFFERP (c
));
3205 /* Record a key that came from a mouse menu.
3206 Record it for echoing, for this-command-keys, and so on. */
3212 /* Wipe the echo area. */
3213 clear_message (1, 0);
3218 before_command_key_count
= this_command_key_count
;
3219 before_command_echo_length
= echo_length ();
3222 /* Don't echo mouse motion events. */
3223 if ((FLOATP (Vecho_keystrokes
) || INTEGERP (Vecho_keystrokes
))
3224 && NILP (Fzerop (Vecho_keystrokes
)))
3228 /* Once we reread a character, echoing can happen
3229 the next time we pause to read a new one. */
3230 ok_to_echo_at_next_pause
= 0;
3233 /* Record this character as part of the current key. */
3234 add_command_key (c
);
3236 /* Re-reading in the middle of a command */
3237 last_input_char
= c
;
3241 /* Return 1 if should recognize C as "the help character". */
3249 if (EQ (c
, Vhelp_char
))
3251 for (tail
= Vhelp_event_list
; CONSP (tail
); tail
= XCDR (tail
))
3252 if (EQ (c
, XCAR (tail
)))
3257 /* Record the input event C in various ways. */
3265 if (CONSP (c
) && (EQ (XCAR (c
), Qhelp_echo
) || EQ (XCAR (c
), Qmouse_movement
)))
3267 /* To avoid filling recent_keys with help-echo and mouse-movement
3268 events, we filter out repeated help-echo events, only store the
3269 first and last in a series of mouse-movement events, and don't
3270 store repeated help-echo events which are only separated by
3271 mouse-movement events. */
3273 Lisp_Object ev1
, ev2
, ev3
;
3276 if ((ix1
= recent_keys_index
- 1) < 0)
3277 ix1
= NUM_RECENT_KEYS
- 1;
3278 ev1
= AREF (recent_keys
, ix1
);
3280 if ((ix2
= ix1
- 1) < 0)
3281 ix2
= NUM_RECENT_KEYS
- 1;
3282 ev2
= AREF (recent_keys
, ix2
);
3284 if ((ix3
= ix2
- 1) < 0)
3285 ix3
= NUM_RECENT_KEYS
- 1;
3286 ev3
= AREF (recent_keys
, ix3
);
3288 if (EQ (XCAR (c
), Qhelp_echo
))
3290 /* Don't record `help-echo' in recent_keys unless it shows some help
3291 message, and a different help than the previously recorded
3293 Lisp_Object help
, last_help
;
3295 help
= Fcar_safe (Fcdr_safe (XCDR (c
)));
3296 if (!STRINGP (help
))
3298 else if (CONSP (ev1
) && EQ (XCAR (ev1
), Qhelp_echo
)
3299 && (last_help
= Fcar_safe (Fcdr_safe (XCDR (ev1
))), EQ (last_help
, help
)))
3301 else if (CONSP (ev1
) && EQ (XCAR (ev1
), Qmouse_movement
)
3302 && CONSP (ev2
) && EQ (XCAR (ev2
), Qhelp_echo
)
3303 && (last_help
= Fcar_safe (Fcdr_safe (XCDR (ev2
))), EQ (last_help
, help
)))
3305 else if (CONSP (ev1
) && EQ (XCAR (ev1
), Qmouse_movement
)
3306 && CONSP (ev2
) && EQ (XCAR (ev2
), Qmouse_movement
)
3307 && CONSP (ev3
) && EQ (XCAR (ev3
), Qhelp_echo
)
3308 && (last_help
= Fcar_safe (Fcdr_safe (XCDR (ev3
))), EQ (last_help
, help
)))
3311 else if (EQ (XCAR (c
), Qmouse_movement
))
3313 /* Only record one pair of `mouse-movement' on a window in recent_keys.
3314 So additional mouse movement events replace the last element. */
3315 Lisp_Object last_window
, window
;
3317 window
= Fcar_safe (Fcar_safe (XCDR (c
)));
3318 if (CONSP (ev1
) && EQ (XCAR (ev1
), Qmouse_movement
)
3319 && (last_window
= Fcar_safe (Fcar_safe (XCDR (ev1
))), EQ (last_window
, window
))
3320 && CONSP (ev2
) && EQ (XCAR (ev2
), Qmouse_movement
)
3321 && (last_window
= Fcar_safe (Fcar_safe (XCDR (ev2
))), EQ (last_window
, window
)))
3323 ASET (recent_keys
, ix1
, c
);
3329 store_kbd_macro_char (c
);
3334 ASET (recent_keys
, recent_keys_index
, c
);
3335 if (++recent_keys_index
>= NUM_RECENT_KEYS
)
3336 recent_keys_index
= 0;
3338 else if (recorded
< 0)
3340 /* We need to remove one or two events from recent_keys.
3341 To do this, we simply put nil at those events and move the
3342 recent_keys_index backwards over those events. Usually,
3343 users will never see those nil events, as they will be
3344 overwritten by the command keys entered to see recent_keys
3347 while (recorded
++ < 0 && total_keys
> 0)
3349 if (total_keys
< NUM_RECENT_KEYS
)
3351 if (--recent_keys_index
< 0)
3352 recent_keys_index
= NUM_RECENT_KEYS
- 1;
3353 ASET (recent_keys
, recent_keys_index
, Qnil
);
3357 num_nonmacro_input_events
++;
3359 /* Write c to the dribble file. If c is a lispy event, write
3360 the event's symbol to the dribble file, in <brackets>. Bleaugh.
3361 If you, dear reader, have a better idea, you've got the source. :-) */
3366 if (XUINT (c
) < 0x100)
3367 putc (XINT (c
), dribble
);
3369 fprintf (dribble
, " 0x%x", (int) XUINT (c
));
3373 Lisp_Object dribblee
;
3375 /* If it's a structured event, take the event header. */
3376 dribblee
= EVENT_HEAD (c
);
3378 if (SYMBOLP (dribblee
))
3380 putc ('<', dribble
);
3381 fwrite (SDATA (SYMBOL_NAME (dribblee
)), sizeof (char),
3382 SBYTES (SYMBOL_NAME (dribblee
)),
3384 putc ('>', dribble
);
3396 struct buffer
*old
= current_buffer
;
3397 Fprinc (object
, Qnil
);
3398 set_buffer_internal (XBUFFER (Vstandard_output
));
3399 call0 (intern ("help-mode"));
3400 set_buffer_internal (old
);
3404 /* Copy out or in the info on where C-g should throw to.
3405 This is used when running Lisp code from within get_char,
3406 in case get_char is called recursively.
3407 See read_process_output. */
3413 bcopy (getcjmp
, temp
, sizeof getcjmp
);
3417 restore_getcjmp (temp
)
3420 bcopy (temp
, getcjmp
, sizeof getcjmp
);
3425 /* Restore mouse tracking enablement. See Ftrack_mouse for the only use
3426 of this function. */
3429 tracking_off (old_value
)
3430 Lisp_Object old_value
;
3432 do_mouse_tracking
= old_value
;
3433 if (NILP (old_value
))
3435 /* Redisplay may have been preempted because there was input
3436 available, and it assumes it will be called again after the
3437 input has been processed. If the only input available was
3438 the sort that we have just disabled, then we need to call
3440 if (!readable_events (READABLE_EVENTS_DO_TIMERS_NOW
))
3442 redisplay_preserve_echo_area (6);
3443 get_input_pending (&input_pending
,
3444 READABLE_EVENTS_DO_TIMERS_NOW
);
3450 DEFUN ("track-mouse", Ftrack_mouse
, Strack_mouse
, 0, UNEVALLED
, 0,
3451 doc
: /* Evaluate BODY with mouse movement events enabled.
3452 Within a `track-mouse' form, mouse motion generates input events that
3453 you can read with `read-event'.
3454 Normally, mouse motion is ignored.
3455 usage: (track-mouse BODY ...) */)
3459 int count
= SPECPDL_INDEX ();
3462 record_unwind_protect (tracking_off
, do_mouse_tracking
);
3464 do_mouse_tracking
= Qt
;
3466 val
= Fprogn (args
);
3467 return unbind_to (count
, val
);
3470 /* If mouse has moved on some frame, return one of those frames.
3471 Return 0 otherwise. */
3476 Lisp_Object tail
, frame
;
3478 FOR_EACH_FRAME (tail
, frame
)
3480 if (XFRAME (frame
)->mouse_moved
)
3481 return XFRAME (frame
);
3487 #endif /* HAVE_MOUSE */
3489 /* Low level keyboard/mouse input.
3490 kbd_buffer_store_event places events in kbd_buffer, and
3491 kbd_buffer_get_event retrieves them. */
3493 /* Return true iff there are any events in the queue that read-char
3494 would return. If this returns false, a read-char would block. */
3496 readable_events (flags
)
3499 if (flags
& READABLE_EVENTS_DO_TIMERS_NOW
)
3502 /* If the buffer contains only FOCUS_IN_EVENT events, and
3503 READABLE_EVENTS_FILTER_EVENTS is set, report it as empty. */
3504 if (kbd_fetch_ptr
!= kbd_store_ptr
)
3506 int have_live_event
= 1;
3508 if (flags
& READABLE_EVENTS_FILTER_EVENTS
)
3510 struct input_event
*event
;
3512 event
= ((kbd_fetch_ptr
< kbd_buffer
+ KBD_BUFFER_SIZE
)
3516 while (have_live_event
&& event
->kind
== FOCUS_IN_EVENT
)
3519 if (event
== kbd_buffer
+ KBD_BUFFER_SIZE
)
3521 if (event
== kbd_store_ptr
)
3522 have_live_event
= 0;
3525 if (have_live_event
) return 1;
3529 if (!(flags
& READABLE_EVENTS_IGNORE_SQUEEZABLES
)
3530 && !NILP (do_mouse_tracking
) && some_mouse_moved ())
3535 if (current_kboard
->kbd_queue_has_data
)
3541 for (kb
= all_kboards
; kb
; kb
= kb
->next_kboard
)
3542 if (kb
->kbd_queue_has_data
)
3548 /* Set this for debugging, to have a way to get out */
3553 event_to_kboard (event
)
3554 struct input_event
*event
;
3557 frame
= event
->frame_or_window
;
3559 frame
= XCAR (frame
);
3560 else if (WINDOWP (frame
))
3561 frame
= WINDOW_FRAME (XWINDOW (frame
));
3563 /* There are still some events that don't set this field.
3564 For now, just ignore the problem.
3565 Also ignore dead frames here. */
3566 if (!FRAMEP (frame
) || !FRAME_LIVE_P (XFRAME (frame
)))
3569 return FRAME_KBOARD (XFRAME (frame
));
3574 Lisp_Object Vthrow_on_input
;
3576 /* Store an event obtained at interrupt level into kbd_buffer, fifo */
3579 kbd_buffer_store_event (event
)
3580 register struct input_event
*event
;
3582 kbd_buffer_store_event_hold (event
, 0);
3585 /* Store EVENT obtained at interrupt level into kbd_buffer, fifo.
3587 If HOLD_QUIT is 0, just stuff EVENT into the fifo.
3588 Else, if HOLD_QUIT.kind != NO_EVENT, discard EVENT.
3589 Else, if EVENT is a quit event, store the quit event
3590 in HOLD_QUIT, and return (thus ignoring further events).
3592 This is used in read_avail_input to postpone the processing
3593 of the quit event until all subsequent input events have been
3594 parsed (and discarded).
3598 kbd_buffer_store_event_hold (event
, hold_quit
)
3599 register struct input_event
*event
;
3600 struct input_event
*hold_quit
;
3602 if (event
->kind
== NO_EVENT
)
3605 if (hold_quit
&& hold_quit
->kind
!= NO_EVENT
)
3608 if (event
->kind
== ASCII_KEYSTROKE_EVENT
)
3610 register int c
= event
->code
& 0377;
3612 if (event
->modifiers
& ctrl_modifier
)
3613 c
= make_ctrl_char (c
);
3615 c
|= (event
->modifiers
3616 & (meta_modifier
| alt_modifier
3617 | hyper_modifier
| super_modifier
));
3623 struct input_event
*sp
;
3626 && (kb
= FRAME_KBOARD (XFRAME (event
->frame_or_window
)),
3627 kb
!= current_kboard
))
3630 = Fcons (make_lispy_switch_frame (event
->frame_or_window
),
3631 Fcons (make_number (c
), Qnil
));
3632 kb
->kbd_queue_has_data
= 1;
3633 for (sp
= kbd_fetch_ptr
; sp
!= kbd_store_ptr
; sp
++)
3635 if (sp
== kbd_buffer
+ KBD_BUFFER_SIZE
)
3638 if (event_to_kboard (sp
) == kb
)
3640 sp
->kind
= NO_EVENT
;
3641 sp
->frame_or_window
= Qnil
;
3651 bcopy (event
, (char *) hold_quit
, sizeof (*event
));
3655 /* If this results in a quit_char being returned to Emacs as
3656 input, set Vlast_event_frame properly. If this doesn't
3657 get returned to Emacs as an event, the next event read
3658 will set Vlast_event_frame again, so this is safe to do. */
3662 focus
= FRAME_FOCUS_FRAME (XFRAME (event
->frame_or_window
));
3664 focus
= event
->frame_or_window
;
3665 internal_last_event_frame
= focus
;
3666 Vlast_event_frame
= focus
;
3669 last_event_timestamp
= event
->timestamp
;
3670 handle_interrupt ();
3674 if (c
&& c
== stop_character
)
3680 /* Don't insert two BUFFER_SWITCH_EVENT's in a row.
3681 Just ignore the second one. */
3682 else if (event
->kind
== BUFFER_SWITCH_EVENT
3683 && kbd_fetch_ptr
!= kbd_store_ptr
3684 && ((kbd_store_ptr
== kbd_buffer
3685 ? kbd_buffer
+ KBD_BUFFER_SIZE
- 1
3686 : kbd_store_ptr
- 1)->kind
) == BUFFER_SWITCH_EVENT
)
3689 if (kbd_store_ptr
- kbd_buffer
== KBD_BUFFER_SIZE
)
3690 kbd_store_ptr
= kbd_buffer
;
3692 /* Don't let the very last slot in the buffer become full,
3693 since that would make the two pointers equal,
3694 and that is indistinguishable from an empty buffer.
3695 Discard the event if it would fill the last slot. */
3696 if (kbd_fetch_ptr
- 1 != kbd_store_ptr
)
3698 *kbd_store_ptr
= *event
;
3702 /* If we're inside while-no-input, and this event qualifies
3703 as input, set quit-flag to cause an interrupt. */
3704 if (!NILP (Vthrow_on_input
)
3705 && event
->kind
!= FOCUS_IN_EVENT
3706 && event
->kind
!= HELP_EVENT
3707 && event
->kind
!= DEICONIFY_EVENT
)
3709 Vquit_flag
= Vthrow_on_input
;
3710 /* If we're inside a function that wants immediate quits,
3712 if (immediate_quit
&& NILP (Vinhibit_quit
))
3722 /* Put an input event back in the head of the event queue. */
3725 kbd_buffer_unget_event (event
)
3726 register struct input_event
*event
;
3728 if (kbd_fetch_ptr
== kbd_buffer
)
3729 kbd_fetch_ptr
= kbd_buffer
+ KBD_BUFFER_SIZE
;
3731 /* Don't let the very last slot in the buffer become full, */
3732 if (kbd_fetch_ptr
- 1 != kbd_store_ptr
)
3735 *kbd_fetch_ptr
= *event
;
3740 /* Generate HELP_EVENT input_events in BUFP which has room for
3741 SIZE events. If there's not enough room in BUFP, ignore this
3744 HELP is the help form.
3746 FRAME is the frame on which the help is generated. OBJECT is the
3747 Lisp object where the help was found (a buffer, a string, an
3748 overlay, or nil if neither from a string nor from a buffer. POS is
3749 the position within OBJECT where the help was found.
3751 Value is the number of input_events generated. */
3754 gen_help_event (help
, frame
, window
, object
, pos
)
3755 Lisp_Object help
, frame
, object
, window
;
3758 struct input_event event
;
3762 event
.kind
= HELP_EVENT
;
3763 event
.frame_or_window
= frame
;
3765 event
.x
= WINDOWP (window
) ? window
: frame
;
3768 kbd_buffer_store_event (&event
);
3772 /* Store HELP_EVENTs for HELP on FRAME in the input queue. */
3775 kbd_buffer_store_help_event (frame
, help
)
3776 Lisp_Object frame
, help
;
3778 struct input_event event
;
3780 event
.kind
= HELP_EVENT
;
3781 event
.frame_or_window
= frame
;
3786 kbd_buffer_store_event (&event
);
3790 /* Discard any mouse events in the event buffer by setting them to
3793 discard_mouse_events ()
3795 struct input_event
*sp
;
3796 for (sp
= kbd_fetch_ptr
; sp
!= kbd_store_ptr
; sp
++)
3798 if (sp
== kbd_buffer
+ KBD_BUFFER_SIZE
)
3801 if (sp
->kind
== MOUSE_CLICK_EVENT
3802 || sp
->kind
== WHEEL_EVENT
3804 || sp
->kind
== W32_SCROLL_BAR_CLICK_EVENT
3806 || sp
->kind
== SCROLL_BAR_CLICK_EVENT
)
3808 sp
->kind
= NO_EVENT
;
3814 /* Return non-zero if there are any real events waiting in the event
3815 buffer, not counting `NO_EVENT's.
3817 If DISCARD is non-zero, discard NO_EVENT events at the front of
3818 the input queue, possibly leaving the input queue empty if there
3819 are no real input events. */
3822 kbd_buffer_events_waiting (discard
)
3825 struct input_event
*sp
;
3827 for (sp
= kbd_fetch_ptr
;
3828 sp
!= kbd_store_ptr
&& sp
->kind
== NO_EVENT
;
3831 if (sp
== kbd_buffer
+ KBD_BUFFER_SIZE
)
3838 return sp
!= kbd_store_ptr
&& sp
->kind
!= NO_EVENT
;
3842 /* Clear input event EVENT. */
3846 struct input_event
*event
;
3848 event
->kind
= NO_EVENT
;
3852 /* Read one event from the event buffer, waiting if necessary.
3853 The value is a Lisp object representing the event.
3854 The value is nil for an event that should be ignored,
3855 or that was handled here.
3856 We always read and discard one event. */
3859 kbd_buffer_get_event (kbp
, used_mouse_menu
)
3861 int *used_mouse_menu
;
3870 *kbp
= current_kboard
;
3874 /* Wait until there is input available. */
3877 if (kbd_fetch_ptr
!= kbd_store_ptr
)
3880 if (!NILP (do_mouse_tracking
) && some_mouse_moved ())
3884 /* If the quit flag is set, then read_char will return
3885 quit_char, so that counts as "available input." */
3886 if (!NILP (Vquit_flag
))
3887 quit_throw_to_read_char ();
3889 /* One way or another, wait until input is available; then, if
3890 interrupt handlers have not read it, read it now. */
3893 wait_for_kbd_input ();
3895 /* Note SIGIO has been undef'd if FIONREAD is missing. */
3899 if (kbd_fetch_ptr
!= kbd_store_ptr
)
3902 if (!NILP (do_mouse_tracking
) && some_mouse_moved ())
3906 wait_reading_process_output (0, 0, -1, 1, Qnil
, NULL
, 0);
3908 if (!interrupt_input
&& kbd_fetch_ptr
== kbd_store_ptr
)
3909 /* Pass 1 for EXPECT since we just waited to have input. */
3910 read_avail_input (1);
3912 #endif /* not VMS */
3915 if (CONSP (Vunread_command_events
))
3918 first
= XCAR (Vunread_command_events
);
3919 Vunread_command_events
= XCDR (Vunread_command_events
);
3920 *kbp
= current_kboard
;
3924 /* At this point, we know that there is a readable event available
3925 somewhere. If the event queue is empty, then there must be a
3926 mouse movement enabled and available. */
3927 if (kbd_fetch_ptr
!= kbd_store_ptr
)
3929 struct input_event
*event
;
3931 event
= ((kbd_fetch_ptr
< kbd_buffer
+ KBD_BUFFER_SIZE
)
3935 last_event_timestamp
= event
->timestamp
;
3938 *kbp
= event_to_kboard (event
);
3940 *kbp
= current_kboard
; /* Better than returning null ptr? */
3942 *kbp
= &the_only_kboard
;
3947 /* These two kinds of events get special handling
3948 and don't actually appear to the command loop.
3949 We return nil for them. */
3950 if (event
->kind
== SELECTION_REQUEST_EVENT
3951 || event
->kind
== SELECTION_CLEAR_EVENT
)
3954 struct input_event copy
;
3956 /* Remove it from the buffer before processing it,
3957 since otherwise swallow_events will see it
3958 and process it again. */
3960 kbd_fetch_ptr
= event
+ 1;
3961 input_pending
= readable_events (0);
3962 x_handle_selection_event (©
);
3964 /* We're getting selection request events, but we don't have
3970 #if defined (HAVE_X11) || defined (HAVE_NTGUI) || defined (MAC_OS)
3971 else if (event
->kind
== DELETE_WINDOW_EVENT
)
3973 /* Make an event (delete-frame (FRAME)). */
3974 obj
= Fcons (event
->frame_or_window
, Qnil
);
3975 obj
= Fcons (Qdelete_frame
, Fcons (obj
, Qnil
));
3976 kbd_fetch_ptr
= event
+ 1;
3979 #if defined (HAVE_X11) || defined (HAVE_NTGUI)
3980 else if (event
->kind
== ICONIFY_EVENT
)
3982 /* Make an event (iconify-frame (FRAME)). */
3983 obj
= Fcons (event
->frame_or_window
, Qnil
);
3984 obj
= Fcons (Qiconify_frame
, Fcons (obj
, Qnil
));
3985 kbd_fetch_ptr
= event
+ 1;
3987 else if (event
->kind
== DEICONIFY_EVENT
)
3989 /* Make an event (make-frame-visible (FRAME)). */
3990 obj
= Fcons (event
->frame_or_window
, Qnil
);
3991 obj
= Fcons (Qmake_frame_visible
, Fcons (obj
, Qnil
));
3992 kbd_fetch_ptr
= event
+ 1;
3995 else if (event
->kind
== BUFFER_SWITCH_EVENT
)
3997 /* The value doesn't matter here; only the type is tested. */
3998 XSETBUFFER (obj
, current_buffer
);
3999 kbd_fetch_ptr
= event
+ 1;
4001 #if defined (USE_X_TOOLKIT) || defined (HAVE_NTGUI) || defined (MAC_OS) \
4002 || defined (USE_GTK)
4003 else if (event
->kind
== MENU_BAR_ACTIVATE_EVENT
)
4005 kbd_fetch_ptr
= event
+ 1;
4006 input_pending
= readable_events (0);
4007 if (FRAME_LIVE_P (XFRAME (event
->frame_or_window
)))
4008 x_activate_menubar (XFRAME (event
->frame_or_window
));
4012 else if (event
->kind
== LANGUAGE_CHANGE_EVENT
)
4014 /* Make an event (language-change (FRAME CHARSET LCID)). */
4015 obj
= Fcons (event
->frame_or_window
, Qnil
);
4016 obj
= Fcons (Qlanguage_change
, Fcons (obj
, Qnil
));
4017 kbd_fetch_ptr
= event
+ 1;
4020 else if (event
->kind
== SAVE_SESSION_EVENT
)
4022 obj
= Fcons (Qsave_session
, Qnil
);
4023 kbd_fetch_ptr
= event
+ 1;
4025 /* Just discard these, by returning nil.
4026 With MULTI_KBOARD, these events are used as placeholders
4027 when we need to randomly delete events from the queue.
4028 (They shouldn't otherwise be found in the buffer,
4029 but on some machines it appears they do show up
4030 even without MULTI_KBOARD.) */
4031 /* On Windows NT/9X, NO_EVENT is used to delete extraneous
4032 mouse events during a popup-menu call. */
4033 else if (event
->kind
== NO_EVENT
)
4034 kbd_fetch_ptr
= event
+ 1;
4035 else if (event
->kind
== HELP_EVENT
)
4037 Lisp_Object object
, position
, help
, frame
, window
;
4039 frame
= event
->frame_or_window
;
4040 object
= event
->arg
;
4041 position
= make_number (event
->code
);
4044 clear_event (event
);
4046 kbd_fetch_ptr
= event
+ 1;
4047 if (!WINDOWP (window
))
4049 obj
= Fcons (Qhelp_echo
,
4050 list5 (frame
, help
, window
, object
, position
));
4052 else if (event
->kind
== FOCUS_IN_EVENT
)
4054 /* Notification of a FocusIn event. The frame receiving the
4055 focus is in event->frame_or_window. Generate a
4056 switch-frame event if necessary. */
4057 Lisp_Object frame
, focus
;
4059 frame
= event
->frame_or_window
;
4060 focus
= FRAME_FOCUS_FRAME (XFRAME (frame
));
4064 if (!EQ (frame
, internal_last_event_frame
)
4065 && !EQ (frame
, selected_frame
))
4066 obj
= make_lispy_switch_frame (frame
);
4067 internal_last_event_frame
= frame
;
4068 kbd_fetch_ptr
= event
+ 1;
4072 /* If this event is on a different frame, return a switch-frame this
4073 time, and leave the event in the queue for next time. */
4077 frame
= event
->frame_or_window
;
4079 frame
= XCAR (frame
);
4080 else if (WINDOWP (frame
))
4081 frame
= WINDOW_FRAME (XWINDOW (frame
));
4083 focus
= FRAME_FOCUS_FRAME (XFRAME (frame
));
4087 if (! EQ (frame
, internal_last_event_frame
)
4088 && !EQ (frame
, selected_frame
))
4089 obj
= make_lispy_switch_frame (frame
);
4090 internal_last_event_frame
= frame
;
4092 /* If we didn't decide to make a switch-frame event, go ahead
4093 and build a real event from the queue entry. */
4097 obj
= make_lispy_event (event
);
4099 #if defined (USE_X_TOOLKIT) || defined (HAVE_NTGUI) || defined(MAC_OS) \
4100 || defined (USE_GTK)
4101 /* If this was a menu selection, then set the flag to inhibit
4102 writing to last_nonmenu_event. Don't do this if the event
4103 we're returning is (menu-bar), though; that indicates the
4104 beginning of the menu sequence, and we might as well leave
4105 that as the `event with parameters' for this selection. */
4107 && !EQ (event
->frame_or_window
, event
->arg
)
4108 && (event
->kind
== MENU_BAR_EVENT
4109 || event
->kind
== TOOL_BAR_EVENT
))
4110 *used_mouse_menu
= 1;
4113 /* Wipe out this event, to catch bugs. */
4114 clear_event (event
);
4115 kbd_fetch_ptr
= event
+ 1;
4120 /* Try generating a mouse motion event. */
4121 else if (!NILP (do_mouse_tracking
) && some_mouse_moved ())
4123 FRAME_PTR f
= some_mouse_moved ();
4124 Lisp_Object bar_window
;
4125 enum scroll_bar_part part
;
4129 *kbp
= current_kboard
;
4130 /* Note that this uses F to determine which display to look at.
4131 If there is no valid info, it does not store anything
4132 so x remains nil. */
4135 /* XXX Can f or mouse_position_hook be NULL here? */
4136 if (f
&& FRAME_DISPLAY (f
)->mouse_position_hook
)
4137 (*FRAME_DISPLAY (f
)->mouse_position_hook
) (&f
, 0, &bar_window
,
4138 &part
, &x
, &y
, &time
);
4142 /* Decide if we should generate a switch-frame event. Don't
4143 generate switch-frame events for motion outside of all Emacs
4149 frame
= FRAME_FOCUS_FRAME (f
);
4151 XSETFRAME (frame
, f
);
4153 if (! EQ (frame
, internal_last_event_frame
)
4154 && !EQ (frame
, selected_frame
))
4155 obj
= make_lispy_switch_frame (frame
);
4156 internal_last_event_frame
= frame
;
4159 /* If we didn't decide to make a switch-frame event, go ahead and
4160 return a mouse-motion event. */
4161 if (!NILP (x
) && NILP (obj
))
4162 obj
= make_lispy_movement (f
, bar_window
, part
, x
, y
, time
);
4164 #endif /* HAVE_MOUSE */
4166 /* We were promised by the above while loop that there was
4167 something for us to read! */
4170 input_pending
= readable_events (0);
4172 Vlast_event_frame
= internal_last_event_frame
;
4177 /* Process any events that are not user-visible,
4178 then return, without reading any user-visible events. */
4181 swallow_events (do_display
)
4186 while (kbd_fetch_ptr
!= kbd_store_ptr
)
4188 struct input_event
*event
;
4190 event
= ((kbd_fetch_ptr
< kbd_buffer
+ KBD_BUFFER_SIZE
)
4194 last_event_timestamp
= event
->timestamp
;
4196 /* These two kinds of events get special handling
4197 and don't actually appear to the command loop. */
4198 if (event
->kind
== SELECTION_REQUEST_EVENT
4199 || event
->kind
== SELECTION_CLEAR_EVENT
)
4202 struct input_event copy
;
4204 /* Remove it from the buffer before processing it,
4205 since otherwise swallow_events called recursively could see it
4206 and process it again. */
4208 kbd_fetch_ptr
= event
+ 1;
4209 input_pending
= readable_events (0);
4210 x_handle_selection_event (©
);
4212 /* We're getting selection request events, but we don't have
4221 old_timers_run
= timers_run
;
4222 get_input_pending (&input_pending
, READABLE_EVENTS_DO_TIMERS_NOW
);
4224 if (timers_run
!= old_timers_run
&& do_display
)
4225 redisplay_preserve_echo_area (7);
4228 /* Record the start of when Emacs is idle,
4229 for the sake of running idle-time timers. */
4236 /* If we are already in the idle state, do nothing. */
4237 if (! EMACS_TIME_NEG_P (timer_idleness_start_time
))
4240 EMACS_GET_TIME (timer_idleness_start_time
);
4242 timer_last_idleness_start_time
= timer_idleness_start_time
;
4244 /* Mark all idle-time timers as once again candidates for running. */
4245 for (timers
= Vtimer_idle_list
; CONSP (timers
); timers
= XCDR (timers
))
4249 timer
= XCAR (timers
);
4251 if (!VECTORP (timer
) || XVECTOR (timer
)->size
!= 8)
4253 XVECTOR (timer
)->contents
[0] = Qnil
;
4257 /* Record that Emacs is no longer idle, so stop running idle-time timers. */
4262 EMACS_SET_SECS_USECS (timer_idleness_start_time
, -1, -1);
4265 /* Resume idle timer from last idle start time. */
4268 timer_resume_idle ()
4270 if (! EMACS_TIME_NEG_P (timer_idleness_start_time
))
4273 timer_idleness_start_time
= timer_last_idleness_start_time
;
4276 /* This is only for debugging. */
4277 struct input_event last_timer_event
;
4279 /* Check whether a timer has fired. To prevent larger problems we simply
4280 disregard elements that are not proper timers. Do not make a circular
4281 timer list for the time being.
4283 Returns the number of seconds to wait until the next timer fires. If a
4284 timer is triggering now, return zero seconds.
4285 If no timer is active, return -1 seconds.
4287 If a timer is ripe, we run it, with quitting turned off.
4289 DO_IT_NOW is now ignored. It used to mean that we should
4290 run the timer directly instead of queueing a timer-event.
4291 Now we always run timers directly. */
4294 timer_check (do_it_now
)
4297 EMACS_TIME nexttime
;
4298 EMACS_TIME now
, idleness_now
;
4299 Lisp_Object timers
, idle_timers
, chosen_timer
;
4300 struct gcpro gcpro1
, gcpro2
, gcpro3
;
4302 EMACS_SET_SECS (nexttime
, -1);
4303 EMACS_SET_USECS (nexttime
, -1);
4305 /* Always consider the ordinary timers. */
4306 timers
= Vtimer_list
;
4307 /* Consider the idle timers only if Emacs is idle. */
4308 if (! EMACS_TIME_NEG_P (timer_idleness_start_time
))
4309 idle_timers
= Vtimer_idle_list
;
4312 chosen_timer
= Qnil
;
4313 GCPRO3 (timers
, idle_timers
, chosen_timer
);
4315 if (CONSP (timers
) || CONSP (idle_timers
))
4317 EMACS_GET_TIME (now
);
4318 if (! EMACS_TIME_NEG_P (timer_idleness_start_time
))
4319 EMACS_SUB_TIME (idleness_now
, now
, timer_idleness_start_time
);
4322 while (CONSP (timers
) || CONSP (idle_timers
))
4324 Lisp_Object
*vector
;
4325 Lisp_Object timer
= Qnil
, idle_timer
= Qnil
;
4326 EMACS_TIME timer_time
, idle_timer_time
;
4327 EMACS_TIME difference
, timer_difference
, idle_timer_difference
;
4329 /* Skip past invalid timers and timers already handled. */
4332 timer
= XCAR (timers
);
4333 if (!VECTORP (timer
) || XVECTOR (timer
)->size
!= 8)
4335 timers
= XCDR (timers
);
4338 vector
= XVECTOR (timer
)->contents
;
4340 if (!INTEGERP (vector
[1]) || !INTEGERP (vector
[2])
4341 || !INTEGERP (vector
[3])
4342 || ! NILP (vector
[0]))
4344 timers
= XCDR (timers
);
4348 if (!NILP (idle_timers
))
4350 timer
= XCAR (idle_timers
);
4351 if (!VECTORP (timer
) || XVECTOR (timer
)->size
!= 8)
4353 idle_timers
= XCDR (idle_timers
);
4356 vector
= XVECTOR (timer
)->contents
;
4358 if (!INTEGERP (vector
[1]) || !INTEGERP (vector
[2])
4359 || !INTEGERP (vector
[3])
4360 || ! NILP (vector
[0]))
4362 idle_timers
= XCDR (idle_timers
);
4367 /* Set TIMER, TIMER_TIME and TIMER_DIFFERENCE
4368 based on the next ordinary timer.
4369 TIMER_DIFFERENCE is the distance in time from NOW to when
4370 this timer becomes ripe (negative if it's already ripe). */
4373 timer
= XCAR (timers
);
4374 vector
= XVECTOR (timer
)->contents
;
4375 EMACS_SET_SECS (timer_time
,
4376 (XINT (vector
[1]) << 16) | (XINT (vector
[2])));
4377 EMACS_SET_USECS (timer_time
, XINT (vector
[3]));
4378 EMACS_SUB_TIME (timer_difference
, timer_time
, now
);
4381 /* Set IDLE_TIMER, IDLE_TIMER_TIME and IDLE_TIMER_DIFFERENCE
4382 based on the next idle timer. */
4383 if (!NILP (idle_timers
))
4385 idle_timer
= XCAR (idle_timers
);
4386 vector
= XVECTOR (idle_timer
)->contents
;
4387 EMACS_SET_SECS (idle_timer_time
,
4388 (XINT (vector
[1]) << 16) | (XINT (vector
[2])));
4389 EMACS_SET_USECS (idle_timer_time
, XINT (vector
[3]));
4390 EMACS_SUB_TIME (idle_timer_difference
, idle_timer_time
, idleness_now
);
4393 /* Decide which timer is the next timer,
4394 and set CHOSEN_TIMER, VECTOR and DIFFERENCE accordingly.
4395 Also step down the list where we found that timer. */
4397 if (! NILP (timers
) && ! NILP (idle_timers
))
4400 EMACS_SUB_TIME (temp
, timer_difference
, idle_timer_difference
);
4401 if (EMACS_TIME_NEG_P (temp
))
4403 chosen_timer
= timer
;
4404 timers
= XCDR (timers
);
4405 difference
= timer_difference
;
4409 chosen_timer
= idle_timer
;
4410 idle_timers
= XCDR (idle_timers
);
4411 difference
= idle_timer_difference
;
4414 else if (! NILP (timers
))
4416 chosen_timer
= timer
;
4417 timers
= XCDR (timers
);
4418 difference
= timer_difference
;
4422 chosen_timer
= idle_timer
;
4423 idle_timers
= XCDR (idle_timers
);
4424 difference
= idle_timer_difference
;
4426 vector
= XVECTOR (chosen_timer
)->contents
;
4428 /* If timer is ripe, run it if it hasn't been run. */
4429 if (EMACS_TIME_NEG_P (difference
)
4430 || (EMACS_SECS (difference
) == 0
4431 && EMACS_USECS (difference
) == 0))
4433 if (NILP (vector
[0]))
4435 int was_locked
= single_kboard
;
4436 int count
= SPECPDL_INDEX ();
4437 Lisp_Object old_deactivate_mark
= Vdeactivate_mark
;
4439 /* Mark the timer as triggered to prevent problems if the lisp
4440 code fails to reschedule it right. */
4443 specbind (Qinhibit_quit
, Qt
);
4445 call1 (Qtimer_event_handler
, chosen_timer
);
4446 Vdeactivate_mark
= old_deactivate_mark
;
4448 unbind_to (count
, Qnil
);
4450 /* Resume allowing input from any kboard, if that was true before. */
4452 any_kboard_state ();
4454 /* Since we have handled the event,
4455 we don't need to tell the caller to wake up and do it. */
4459 /* When we encounter a timer that is still waiting,
4460 return the amount of time to wait before it is ripe. */
4467 /* No timers are pending in the future. */
4468 /* Return 0 if we generated an event, and -1 if not. */
4473 /* Caches for modify_event_symbol. */
4474 static Lisp_Object accent_key_syms
;
4475 static Lisp_Object func_key_syms
;
4476 static Lisp_Object mouse_syms
;
4477 static Lisp_Object wheel_syms
;
4478 static Lisp_Object drag_n_drop_syms
;
4480 /* This is a list of keysym codes for special "accent" characters.
4481 It parallels lispy_accent_keys. */
4483 static int lispy_accent_codes
[] =
4485 #ifdef XK_dead_circumflex
4490 #ifdef XK_dead_grave
4495 #ifdef XK_dead_tilde
4500 #ifdef XK_dead_diaeresis
4505 #ifdef XK_dead_macron
4510 #ifdef XK_dead_degree
4515 #ifdef XK_dead_acute
4520 #ifdef XK_dead_cedilla
4525 #ifdef XK_dead_breve
4530 #ifdef XK_dead_ogonek
4535 #ifdef XK_dead_caron
4540 #ifdef XK_dead_doubleacute
4541 XK_dead_doubleacute
,
4545 #ifdef XK_dead_abovedot
4550 #ifdef XK_dead_abovering
4560 #ifdef XK_dead_belowdot
4565 #ifdef XK_dead_voiced_sound
4566 XK_dead_voiced_sound
,
4570 #ifdef XK_dead_semivoiced_sound
4571 XK_dead_semivoiced_sound
,
4587 /* This is a list of Lisp names for special "accent" characters.
4588 It parallels lispy_accent_codes. */
4590 static char *lispy_accent_keys
[] =
4608 "dead-voiced-sound",
4609 "dead-semivoiced-sound",
4615 #define FUNCTION_KEY_OFFSET 0x0
4617 char *lispy_function_keys
[] =
4621 0, /* VK_LBUTTON 0x01 */
4622 0, /* VK_RBUTTON 0x02 */
4623 "cancel", /* VK_CANCEL 0x03 */
4624 0, /* VK_MBUTTON 0x04 */
4626 0, 0, 0, /* 0x05 .. 0x07 */
4628 "backspace", /* VK_BACK 0x08 */
4629 "tab", /* VK_TAB 0x09 */
4631 0, 0, /* 0x0A .. 0x0B */
4633 "clear", /* VK_CLEAR 0x0C */
4634 "return", /* VK_RETURN 0x0D */
4636 0, 0, /* 0x0E .. 0x0F */
4638 0, /* VK_SHIFT 0x10 */
4639 0, /* VK_CONTROL 0x11 */
4640 0, /* VK_MENU 0x12 */
4641 "pause", /* VK_PAUSE 0x13 */
4642 "capslock", /* VK_CAPITAL 0x14 */
4644 0, 0, 0, 0, 0, 0, /* 0x15 .. 0x1A */
4646 "escape", /* VK_ESCAPE 0x1B */
4648 0, 0, 0, 0, /* 0x1C .. 0x1F */
4650 0, /* VK_SPACE 0x20 */
4651 "prior", /* VK_PRIOR 0x21 */
4652 "next", /* VK_NEXT 0x22 */
4653 "end", /* VK_END 0x23 */
4654 "home", /* VK_HOME 0x24 */
4655 "left", /* VK_LEFT 0x25 */
4656 "up", /* VK_UP 0x26 */
4657 "right", /* VK_RIGHT 0x27 */
4658 "down", /* VK_DOWN 0x28 */
4659 "select", /* VK_SELECT 0x29 */
4660 "print", /* VK_PRINT 0x2A */
4661 "execute", /* VK_EXECUTE 0x2B */
4662 "snapshot", /* VK_SNAPSHOT 0x2C */
4663 "insert", /* VK_INSERT 0x2D */
4664 "delete", /* VK_DELETE 0x2E */
4665 "help", /* VK_HELP 0x2F */
4667 /* VK_0 thru VK_9 are the same as ASCII '0' thru '9' (0x30 - 0x39) */
4669 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
4671 0, 0, 0, 0, 0, 0, 0, /* 0x3A .. 0x40 */
4673 /* VK_A thru VK_Z are the same as ASCII 'A' thru 'Z' (0x41 - 0x5A) */
4675 0, 0, 0, 0, 0, 0, 0, 0, 0,
4676 0, 0, 0, 0, 0, 0, 0, 0, 0,
4677 0, 0, 0, 0, 0, 0, 0, 0,
4679 "lwindow", /* VK_LWIN 0x5B */
4680 "rwindow", /* VK_RWIN 0x5C */
4681 "apps", /* VK_APPS 0x5D */
4683 0, 0, /* 0x5E .. 0x5F */
4685 "kp-0", /* VK_NUMPAD0 0x60 */
4686 "kp-1", /* VK_NUMPAD1 0x61 */
4687 "kp-2", /* VK_NUMPAD2 0x62 */
4688 "kp-3", /* VK_NUMPAD3 0x63 */
4689 "kp-4", /* VK_NUMPAD4 0x64 */
4690 "kp-5", /* VK_NUMPAD5 0x65 */
4691 "kp-6", /* VK_NUMPAD6 0x66 */
4692 "kp-7", /* VK_NUMPAD7 0x67 */
4693 "kp-8", /* VK_NUMPAD8 0x68 */
4694 "kp-9", /* VK_NUMPAD9 0x69 */
4695 "kp-multiply", /* VK_MULTIPLY 0x6A */
4696 "kp-add", /* VK_ADD 0x6B */
4697 "kp-separator", /* VK_SEPARATOR 0x6C */
4698 "kp-subtract", /* VK_SUBTRACT 0x6D */
4699 "kp-decimal", /* VK_DECIMAL 0x6E */
4700 "kp-divide", /* VK_DIVIDE 0x6F */
4701 "f1", /* VK_F1 0x70 */
4702 "f2", /* VK_F2 0x71 */
4703 "f3", /* VK_F3 0x72 */
4704 "f4", /* VK_F4 0x73 */
4705 "f5", /* VK_F5 0x74 */
4706 "f6", /* VK_F6 0x75 */
4707 "f7", /* VK_F7 0x76 */
4708 "f8", /* VK_F8 0x77 */
4709 "f9", /* VK_F9 0x78 */
4710 "f10", /* VK_F10 0x79 */
4711 "f11", /* VK_F11 0x7A */
4712 "f12", /* VK_F12 0x7B */
4713 "f13", /* VK_F13 0x7C */
4714 "f14", /* VK_F14 0x7D */
4715 "f15", /* VK_F15 0x7E */
4716 "f16", /* VK_F16 0x7F */
4717 "f17", /* VK_F17 0x80 */
4718 "f18", /* VK_F18 0x81 */
4719 "f19", /* VK_F19 0x82 */
4720 "f20", /* VK_F20 0x83 */
4721 "f21", /* VK_F21 0x84 */
4722 "f22", /* VK_F22 0x85 */
4723 "f23", /* VK_F23 0x86 */
4724 "f24", /* VK_F24 0x87 */
4726 0, 0, 0, 0, /* 0x88 .. 0x8B */
4727 0, 0, 0, 0, /* 0x8C .. 0x8F */
4729 "kp-numlock", /* VK_NUMLOCK 0x90 */
4730 "scroll", /* VK_SCROLL 0x91 */
4732 "kp-space", /* VK_NUMPAD_CLEAR 0x92 */
4733 "kp-enter", /* VK_NUMPAD_ENTER 0x93 */
4734 "kp-prior", /* VK_NUMPAD_PRIOR 0x94 */
4735 "kp-next", /* VK_NUMPAD_NEXT 0x95 */
4736 "kp-end", /* VK_NUMPAD_END 0x96 */
4737 "kp-home", /* VK_NUMPAD_HOME 0x97 */
4738 "kp-left", /* VK_NUMPAD_LEFT 0x98 */
4739 "kp-up", /* VK_NUMPAD_UP 0x99 */
4740 "kp-right", /* VK_NUMPAD_RIGHT 0x9A */
4741 "kp-down", /* VK_NUMPAD_DOWN 0x9B */
4742 "kp-insert", /* VK_NUMPAD_INSERT 0x9C */
4743 "kp-delete", /* VK_NUMPAD_DELETE 0x9D */
4745 0, 0, /* 0x9E .. 0x9F */
4748 * VK_L* & VK_R* - left and right Alt, Ctrl and Shift virtual keys.
4749 * Used only as parameters to GetAsyncKeyState and GetKeyState.
4750 * No other API or message will distinguish left and right keys this way.
4754 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
4755 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
4756 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
4757 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
4758 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
4764 "attn", /* VK_ATTN 0xF6 */
4765 "crsel", /* VK_CRSEL 0xF7 */
4766 "exsel", /* VK_EXSEL 0xF8 */
4767 "ereof", /* VK_EREOF 0xF9 */
4768 "play", /* VK_PLAY 0xFA */
4769 "zoom", /* VK_ZOOM 0xFB */
4770 "noname", /* VK_NONAME 0xFC */
4771 "pa1", /* VK_PA1 0xFD */
4772 "oem_clear", /* VK_OEM_CLEAR 0xFE */
4776 #else /* not HAVE_NTGUI */
4778 /* This should be dealt with in XTread_socket now, and that doesn't
4779 depend on the client system having the Kana syms defined. See also
4780 the XK_kana_A case below. */
4783 static char *lispy_kana_keys
[] =
4785 /* X Keysym value */
4786 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x400 .. 0x40f */
4787 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x410 .. 0x41f */
4788 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x420 .. 0x42f */
4789 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x430 .. 0x43f */
4790 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x440 .. 0x44f */
4791 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x450 .. 0x45f */
4792 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x460 .. 0x46f */
4793 0,0,0,0,0,0,0,0,0,0,0,0,0,0,"overline",0,
4794 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x480 .. 0x48f */
4795 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x490 .. 0x49f */
4796 0, "kana-fullstop", "kana-openingbracket", "kana-closingbracket",
4797 "kana-comma", "kana-conjunctive", "kana-WO", "kana-a",
4798 "kana-i", "kana-u", "kana-e", "kana-o",
4799 "kana-ya", "kana-yu", "kana-yo", "kana-tsu",
4800 "prolongedsound", "kana-A", "kana-I", "kana-U",
4801 "kana-E", "kana-O", "kana-KA", "kana-KI",
4802 "kana-KU", "kana-KE", "kana-KO", "kana-SA",
4803 "kana-SHI", "kana-SU", "kana-SE", "kana-SO",
4804 "kana-TA", "kana-CHI", "kana-TSU", "kana-TE",
4805 "kana-TO", "kana-NA", "kana-NI", "kana-NU",
4806 "kana-NE", "kana-NO", "kana-HA", "kana-HI",
4807 "kana-FU", "kana-HE", "kana-HO", "kana-MA",
4808 "kana-MI", "kana-MU", "kana-ME", "kana-MO",
4809 "kana-YA", "kana-YU", "kana-YO", "kana-RA",
4810 "kana-RI", "kana-RU", "kana-RE", "kana-RO",
4811 "kana-WA", "kana-N", "voicedsound", "semivoicedsound",
4812 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x4e0 .. 0x4ef */
4813 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x4f0 .. 0x4ff */
4815 #endif /* XK_kana_A */
4818 #define FUNCTION_KEY_OFFSET 0xff00
4820 /* You'll notice that this table is arranged to be conveniently
4821 indexed by X Windows keysym values. */
4822 static char *lispy_function_keys
[] =
4824 /* X Keysym value */
4826 0, 0, 0, 0, 0, 0, 0, 0, /* 0xff00...0f */
4827 "backspace", "tab", "linefeed", "clear",
4829 0, 0, 0, "pause", /* 0xff10...1f */
4830 0, 0, 0, 0, 0, 0, 0, "escape",
4832 0, "kanji", "muhenkan", "henkan", /* 0xff20...2f */
4833 "romaji", "hiragana", "katakana", "hiragana-katakana",
4834 "zenkaku", "hankaku", "zenkaku-hankaku", "touroku",
4835 "massyo", "kana-lock", "kana-shift", "eisu-shift",
4836 "eisu-toggle", /* 0xff30...3f */
4837 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
4838 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* 0xff40...4f */
4840 "home", "left", "up", "right", /* 0xff50 */ /* IsCursorKey */
4841 "down", "prior", "next", "end",
4842 "begin", 0, 0, 0, 0, 0, 0, 0,
4843 "select", /* 0xff60 */ /* IsMiscFunctionKey */
4854 "break", /* 0xff6b */
4857 0, 0, 0, 0, "backtab", 0, 0, 0, /* 0xff70... */
4858 0, 0, 0, 0, 0, 0, 0, "kp-numlock", /* 0xff78... */
4859 "kp-space", /* 0xff80 */ /* IsKeypadKey */
4860 0, 0, 0, 0, 0, 0, 0, 0,
4861 "kp-tab", /* 0xff89 */
4863 "kp-enter", /* 0xff8d */
4865 "kp-f1", /* 0xff91 */
4869 "kp-home", /* 0xff95 */
4874 "kp-prior", /* kp-page-up */
4875 "kp-next", /* kp-page-down */
4881 0, 0, 0, 0, 0, 0, 0, 0, 0,
4882 "kp-multiply", /* 0xffaa */
4887 "kp-divide", /* 0xffaf */
4888 "kp-0", /* 0xffb0 */
4889 "kp-1", "kp-2", "kp-3", "kp-4", "kp-5", "kp-6", "kp-7", "kp-8", "kp-9",
4892 "kp-equal", /* 0xffbd */
4893 "f1", /* 0xffbe */ /* IsFunctionKey */
4895 "f3", "f4", "f5", "f6", "f7", "f8", "f9", "f10", /* 0xffc0 */
4896 "f11", "f12", "f13", "f14", "f15", "f16", "f17", "f18",
4897 "f19", "f20", "f21", "f22", "f23", "f24", "f25", "f26", /* 0xffd0 */
4898 "f27", "f28", "f29", "f30", "f31", "f32", "f33", "f34",
4899 "f35", 0, 0, 0, 0, 0, 0, 0, /* 0xffe0 */
4900 0, 0, 0, 0, 0, 0, 0, 0,
4901 0, 0, 0, 0, 0, 0, 0, 0, /* 0xfff0 */
4902 0, 0, 0, 0, 0, 0, 0, "delete"
4905 /* ISO 9995 Function and Modifier Keys; the first byte is 0xFE. */
4906 #define ISO_FUNCTION_KEY_OFFSET 0xfe00
4908 static char *iso_lispy_function_keys
[] =
4910 0, 0, 0, 0, 0, 0, 0, 0, /* 0xfe00 */
4911 0, 0, 0, 0, 0, 0, 0, 0, /* 0xfe08 */
4912 0, 0, 0, 0, 0, 0, 0, 0, /* 0xfe10 */
4913 0, 0, 0, 0, 0, 0, 0, 0, /* 0xfe18 */
4914 "iso-lefttab", /* 0xfe20 */
4915 "iso-move-line-up", "iso-move-line-down",
4916 "iso-partial-line-up", "iso-partial-line-down",
4917 "iso-partial-space-left", "iso-partial-space-right",
4918 "iso-set-margin-left", "iso-set-margin-right", /* 0xffe27, 28 */
4919 "iso-release-margin-left", "iso-release-margin-right",
4920 "iso-release-both-margins",
4921 "iso-fast-cursor-left", "iso-fast-cursor-right",
4922 "iso-fast-cursor-up", "iso-fast-cursor-down",
4923 "iso-continuous-underline", "iso-discontinuous-underline", /* 0xfe30, 31 */
4924 "iso-emphasize", "iso-center-object", "iso-enter", /* ... 0xfe34 */
4927 #endif /* not HAVE_NTGUI */
4929 Lisp_Object Vlispy_mouse_stem
;
4931 static char *lispy_wheel_names
[] =
4933 "wheel-up", "wheel-down"
4936 /* drag-n-drop events are generated when a set of selected files are
4937 dragged from another application and dropped onto an Emacs window. */
4938 static char *lispy_drag_n_drop_names
[] =
4943 /* Scroll bar parts. */
4944 Lisp_Object Qabove_handle
, Qhandle
, Qbelow_handle
;
4945 Lisp_Object Qup
, Qdown
, Qbottom
, Qend_scroll
;
4946 Lisp_Object Qtop
, Qratio
;
4948 /* An array of scroll bar parts, indexed by an enum scroll_bar_part value. */
4949 Lisp_Object
*scroll_bar_parts
[] = {
4950 &Qabove_handle
, &Qhandle
, &Qbelow_handle
,
4951 &Qup
, &Qdown
, &Qtop
, &Qbottom
, &Qend_scroll
, &Qratio
4954 /* User signal events. */
4955 Lisp_Object Qusr1_signal
, Qusr2_signal
;
4957 Lisp_Object
*lispy_user_signals
[] =
4959 &Qusr1_signal
, &Qusr2_signal
4963 /* A vector, indexed by button number, giving the down-going location
4964 of currently depressed buttons, both scroll bar and non-scroll bar.
4966 The elements have the form
4967 (BUTTON-NUMBER MODIFIER-MASK . REST)
4968 where REST is the cdr of a position as it would be reported in the event.
4970 The make_lispy_event function stores positions here to tell the
4971 difference between click and drag events, and to store the starting
4972 location to be included in drag events. */
4974 static Lisp_Object button_down_location
;
4976 /* Information about the most recent up-going button event: Which
4977 button, what location, and what time. */
4979 static int last_mouse_button
;
4980 static int last_mouse_x
;
4981 static int last_mouse_y
;
4982 static unsigned long button_down_time
;
4984 /* The maximum time between clicks to make a double-click, or Qnil to
4985 disable double-click detection, or Qt for no time limit. */
4987 Lisp_Object Vdouble_click_time
;
4989 /* Maximum number of pixels the mouse may be moved between clicks
4990 to make a double-click. */
4992 EMACS_INT double_click_fuzz
;
4994 /* The number of clicks in this multiple-click. */
4996 int double_click_count
;
4998 /* Return position of a mouse click or wheel event */
5001 make_lispy_position (f
, x
, y
, time
)
5007 enum window_part part
;
5008 Lisp_Object posn
= Qnil
;
5009 Lisp_Object extra_info
= Qnil
;
5012 /* Set `window' to the window under frame pixel coordinates (x,y) */
5014 window
= window_from_coordinates (f
, XINT (*x
), XINT (*y
),
5015 &part
, &wx
, &wy
, 0);
5019 if (WINDOWP (window
))
5021 /* It's a click in window window at frame coordinates (x,y) */
5022 struct window
*w
= XWINDOW (window
);
5023 Lisp_Object string_info
= Qnil
;
5024 int textpos
= -1, rx
= -1, ry
= -1;
5025 int dx
= -1, dy
= -1;
5026 int width
= -1, height
= -1;
5027 Lisp_Object object
= Qnil
;
5029 /* Set event coordinates to window-relative coordinates
5030 for constructing the Lisp event below. */
5034 if (part
== ON_MODE_LINE
|| part
== ON_HEADER_LINE
)
5036 /* Mode line or header line. Look for a string under
5037 the mouse that may have a `local-map' property. */
5041 posn
= part
== ON_MODE_LINE
? Qmode_line
: Qheader_line
;
5043 string
= mode_line_string (w
, part
, &rx
, &ry
, &charpos
,
5044 &object
, &dx
, &dy
, &width
, &height
);
5045 if (STRINGP (string
))
5046 string_info
= Fcons (string
, make_number (charpos
));
5047 if (w
== XWINDOW (selected_window
))
5050 textpos
= XMARKER (w
->pointm
)->charpos
;
5052 else if (part
== ON_VERTICAL_BORDER
)
5054 posn
= Qvertical_line
;
5059 else if (part
== ON_LEFT_MARGIN
|| part
== ON_RIGHT_MARGIN
)
5064 posn
= (part
== ON_LEFT_MARGIN
) ? Qleft_margin
: Qright_margin
;
5066 string
= marginal_area_string (w
, part
, &rx
, &ry
, &charpos
,
5067 &object
, &dx
, &dy
, &width
, &height
);
5068 if (STRINGP (string
))
5069 string_info
= Fcons (string
, make_number (charpos
));
5071 else if (part
== ON_LEFT_FRINGE
|| part
== ON_RIGHT_FRINGE
)
5073 posn
= (part
== ON_LEFT_FRINGE
) ? Qleft_fringe
: Qright_fringe
;
5076 if (part
== ON_RIGHT_FRINGE
)
5077 dx
-= (window_box_width (w
, LEFT_MARGIN_AREA
)
5078 + window_box_width (w
, TEXT_AREA
)
5079 + (WINDOW_HAS_FRINGES_OUTSIDE_MARGINS (w
)
5080 ? window_box_width (w
, RIGHT_MARGIN_AREA
)
5082 else if (!WINDOW_HAS_FRINGES_OUTSIDE_MARGINS (w
))
5083 dx
-= window_box_width (w
, LEFT_MARGIN_AREA
);
5088 Lisp_Object string2
, object2
= Qnil
;
5089 struct display_pos p
;
5091 int width2
, height2
;
5092 wx
= max (WINDOW_LEFT_MARGIN_WIDTH (w
), wx
);
5093 string2
= buffer_posn_from_coords (w
, &wx
, &wy
, &p
,
5094 &object2
, &dx2
, &dy2
,
5096 textpos
= CHARPOS (p
.pos
);
5097 if (rx
< 0) rx
= wx
;
5098 if (ry
< 0) ry
= wy
;
5099 if (dx
< 0) dx
= dx2
;
5100 if (dy
< 0) dy
= dy2
;
5101 if (width
< 0) width
= width2
;
5102 if (height
< 0) height
= height2
;
5106 posn
= make_number (textpos
);
5107 if (STRINGP (string2
))
5108 string_info
= Fcons (string2
,
5109 make_number (CHARPOS (p
.string_pos
)));
5115 #ifdef HAVE_WINDOW_SYSTEM
5116 if (IMAGEP (object
))
5118 Lisp_Object image_map
, hotspot
;
5119 if ((image_map
= Fplist_get (XCDR (object
), QCmap
),
5121 && (hotspot
= find_hot_spot (image_map
, dx
, dy
),
5123 && (hotspot
= XCDR (hotspot
), CONSP (hotspot
)))
5124 posn
= XCAR (hotspot
);
5129 extra_info
= Fcons (object
,
5130 Fcons (Fcons (make_number (dx
),
5132 Fcons (Fcons (make_number (width
),
5133 make_number (height
)),
5137 extra_info
= Fcons (string_info
,
5138 Fcons (make_number (textpos
),
5139 Fcons (Fcons (make_number (rx
),
5145 XSETFRAME (window
, f
);
5150 XSETFASTINT (*x
, 0);
5151 XSETFASTINT (*y
, 0);
5154 return Fcons (window
,
5156 Fcons (Fcons (*x
, *y
),
5157 Fcons (make_number (time
),
5161 /* Given a struct input_event, build the lisp event which represents
5162 it. If EVENT is 0, build a mouse movement event from the mouse
5163 movement buffer, which should have a movement event in it.
5165 Note that events must be passed to this function in the order they
5166 are received; this function stores the location of button presses
5167 in order to build drag events when the button is released. */
5170 make_lispy_event (event
)
5171 struct input_event
*event
;
5175 switch (SWITCH_ENUM_CAST (event
->kind
))
5177 /* A simple keystroke. */
5178 case ASCII_KEYSTROKE_EVENT
:
5180 Lisp_Object lispy_c
;
5181 int c
= event
->code
& 0377;
5182 /* Turn ASCII characters into control characters
5184 if (event
->modifiers
& ctrl_modifier
)
5185 c
= make_ctrl_char (c
);
5187 /* Add in the other modifier bits. We took care of ctrl_modifier
5188 just above, and the shift key was taken care of by the X code,
5189 and applied to control characters by make_ctrl_char. */
5190 c
|= (event
->modifiers
5191 & (meta_modifier
| alt_modifier
5192 | hyper_modifier
| super_modifier
));
5193 /* Distinguish Shift-SPC from SPC. */
5194 if ((event
->code
& 0377) == 040
5195 && event
->modifiers
& shift_modifier
)
5196 c
|= shift_modifier
;
5197 button_down_time
= 0;
5198 XSETFASTINT (lispy_c
, c
);
5202 case MULTIBYTE_CHAR_KEYSTROKE_EVENT
:
5204 Lisp_Object lispy_c
;
5205 int c
= event
->code
;
5207 /* Add in the other modifier bits. We took care of ctrl_modifier
5208 just above, and the shift key was taken care of by the X code,
5209 and applied to control characters by make_ctrl_char. */
5210 c
|= (event
->modifiers
5211 & (meta_modifier
| alt_modifier
5212 | hyper_modifier
| super_modifier
| ctrl_modifier
));
5213 /* What about the `shift' modifier ? */
5214 button_down_time
= 0;
5215 XSETFASTINT (lispy_c
, c
);
5219 /* A function key. The symbol may need to have modifier prefixes
5221 case NON_ASCII_KEYSTROKE_EVENT
:
5222 button_down_time
= 0;
5224 for (i
= 0; i
< sizeof (lispy_accent_codes
) / sizeof (int); i
++)
5225 if (event
->code
== lispy_accent_codes
[i
])
5226 return modify_event_symbol (i
,
5228 Qfunction_key
, Qnil
,
5229 lispy_accent_keys
, &accent_key_syms
,
5230 (sizeof (lispy_accent_keys
)
5231 / sizeof (lispy_accent_keys
[0])));
5235 if (event
->code
>= 0x400 && event
->code
< 0x500)
5236 return modify_event_symbol (event
->code
- 0x400,
5237 event
->modifiers
& ~shift_modifier
,
5238 Qfunction_key
, Qnil
,
5239 lispy_kana_keys
, &func_key_syms
,
5240 (sizeof (lispy_kana_keys
)
5241 / sizeof (lispy_kana_keys
[0])));
5242 #endif /* XK_kana_A */
5245 #ifdef ISO_FUNCTION_KEY_OFFSET
5246 if (event
->code
< FUNCTION_KEY_OFFSET
5247 && event
->code
>= ISO_FUNCTION_KEY_OFFSET
)
5248 return modify_event_symbol (event
->code
- ISO_FUNCTION_KEY_OFFSET
,
5250 Qfunction_key
, Qnil
,
5251 iso_lispy_function_keys
, &func_key_syms
,
5252 (sizeof (iso_lispy_function_keys
)
5253 / sizeof (iso_lispy_function_keys
[0])));
5256 /* Handle system-specific or unknown keysyms. */
5257 if (event
->code
& (1 << 28)
5258 || event
->code
- FUNCTION_KEY_OFFSET
< 0
5259 || (event
->code
- FUNCTION_KEY_OFFSET
5260 >= sizeof lispy_function_keys
/ sizeof *lispy_function_keys
)
5261 || !lispy_function_keys
[event
->code
- FUNCTION_KEY_OFFSET
])
5263 /* We need to use an alist rather than a vector as the cache
5264 since we can't make a vector long enuf. */
5265 if (NILP (current_kboard
->system_key_syms
))
5266 current_kboard
->system_key_syms
= Fcons (Qnil
, Qnil
);
5267 return modify_event_symbol (event
->code
,
5270 current_kboard
->Vsystem_key_alist
,
5271 0, ¤t_kboard
->system_key_syms
,
5275 return modify_event_symbol (event
->code
- FUNCTION_KEY_OFFSET
,
5277 Qfunction_key
, Qnil
,
5278 lispy_function_keys
, &func_key_syms
,
5279 (sizeof (lispy_function_keys
)
5280 / sizeof (lispy_function_keys
[0])));
5283 /* A mouse click. Figure out where it is, decide whether it's
5284 a press, click or drag, and build the appropriate structure. */
5285 case MOUSE_CLICK_EVENT
:
5286 #ifndef USE_TOOLKIT_SCROLL_BARS
5287 case SCROLL_BAR_CLICK_EVENT
:
5290 int button
= event
->code
;
5292 Lisp_Object position
;
5293 Lisp_Object
*start_pos_ptr
;
5294 Lisp_Object start_pos
;
5298 /* Build the position as appropriate for this mouse click. */
5299 if (event
->kind
== MOUSE_CLICK_EVENT
)
5301 struct frame
*f
= XFRAME (event
->frame_or_window
);
5302 #if ! defined (USE_X_TOOLKIT) && ! defined (USE_GTK)
5306 /* Ignore mouse events that were made on frame that
5307 have been deleted. */
5308 if (! FRAME_LIVE_P (f
))
5311 #if ! defined (USE_X_TOOLKIT) && ! defined (USE_GTK)
5312 /* EVENT->x and EVENT->y are frame-relative pixel
5313 coordinates at this place. Under old redisplay, COLUMN
5314 and ROW are set to frame relative glyph coordinates
5315 which are then used to determine whether this click is
5316 in a menu (non-toolkit version). */
5317 pixel_to_glyph_coords (f
, XINT (event
->x
), XINT (event
->y
),
5318 &column
, &row
, NULL
, 1);
5320 /* In the non-toolkit version, clicks on the menu bar
5321 are ordinary button events in the event buffer.
5322 Distinguish them, and invoke the menu.
5324 (In the toolkit version, the toolkit handles the menu bar
5325 and Emacs doesn't know about it until after the user
5326 makes a selection.) */
5327 if (row
>= 0 && row
< FRAME_MENU_BAR_LINES (f
)
5328 && (event
->modifiers
& down_modifier
))
5330 Lisp_Object items
, item
;
5335 /* Activate the menu bar on the down event. If the
5336 up event comes in before the menu code can deal with it,
5338 if (! (event
->modifiers
& down_modifier
))
5342 /* Find the menu bar item under `column'. */
5344 items
= FRAME_MENU_BAR_ITEMS (f
);
5345 for (i
= 0; i
< XVECTOR (items
)->size
; i
+= 4)
5347 Lisp_Object pos
, string
;
5348 string
= AREF (items
, i
+ 1);
5349 pos
= AREF (items
, i
+ 3);
5352 if (column
>= XINT (pos
)
5353 && column
< XINT (pos
) + SCHARS (string
))
5355 item
= AREF (items
, i
);
5360 /* ELisp manual 2.4b says (x y) are window relative but
5361 code says they are frame-relative. */
5363 = Fcons (event
->frame_or_window
,
5365 Fcons (Fcons (event
->x
, event
->y
),
5366 Fcons (make_number (event
->timestamp
),
5369 return Fcons (item
, Fcons (position
, Qnil
));
5371 #endif /* not USE_X_TOOLKIT && not USE_GTK */
5373 position
= make_lispy_position (f
, &event
->x
, &event
->y
,
5376 #ifndef USE_TOOLKIT_SCROLL_BARS
5379 /* It's a scrollbar click. */
5381 Lisp_Object portion_whole
;
5384 window
= event
->frame_or_window
;
5385 portion_whole
= Fcons (event
->x
, event
->y
);
5386 part
= *scroll_bar_parts
[(int) event
->part
];
5390 Fcons (Qvertical_scroll_bar
,
5391 Fcons (portion_whole
,
5392 Fcons (make_number (event
->timestamp
),
5393 Fcons (part
, Qnil
)))));
5395 #endif /* not USE_TOOLKIT_SCROLL_BARS */
5397 if (button
>= ASIZE (button_down_location
))
5399 button_down_location
= larger_vector (button_down_location
,
5401 mouse_syms
= larger_vector (mouse_syms
, button
+ 1, Qnil
);
5404 start_pos_ptr
= &AREF (button_down_location
, button
);
5405 start_pos
= *start_pos_ptr
;
5406 *start_pos_ptr
= Qnil
;
5409 /* On window-system frames, use the value of
5410 double-click-fuzz as is. On other frames, interpret it
5411 as a multiple of 1/8 characters. */
5415 if (WINDOWP (event
->frame_or_window
))
5416 f
= XFRAME (XWINDOW (event
->frame_or_window
)->frame
);
5417 else if (FRAMEP (event
->frame_or_window
))
5418 f
= XFRAME (event
->frame_or_window
);
5422 if (FRAME_WINDOW_P (f
))
5423 fuzz
= double_click_fuzz
;
5425 fuzz
= double_click_fuzz
/ 8;
5427 is_double
= (button
== last_mouse_button
5428 && (abs (XINT (event
->x
) - last_mouse_x
) <= fuzz
)
5429 && (abs (XINT (event
->y
) - last_mouse_y
) <= fuzz
)
5430 && button_down_time
!= 0
5431 && (EQ (Vdouble_click_time
, Qt
)
5432 || (INTEGERP (Vdouble_click_time
)
5433 && ((int)(event
->timestamp
- button_down_time
)
5434 < XINT (Vdouble_click_time
)))));
5437 last_mouse_button
= button
;
5438 last_mouse_x
= XINT (event
->x
);
5439 last_mouse_y
= XINT (event
->y
);
5441 /* If this is a button press, squirrel away the location, so
5442 we can decide later whether it was a click or a drag. */
5443 if (event
->modifiers
& down_modifier
)
5447 double_click_count
++;
5448 event
->modifiers
|= ((double_click_count
> 2)
5453 double_click_count
= 1;
5454 button_down_time
= event
->timestamp
;
5455 *start_pos_ptr
= Fcopy_alist (position
);
5458 /* Now we're releasing a button - check the co-ordinates to
5459 see if this was a click or a drag. */
5460 else if (event
->modifiers
& up_modifier
)
5462 /* If we did not see a down before this up, ignore the up.
5463 Probably this happened because the down event chose a
5464 menu item. It would be an annoyance to treat the
5465 release of the button that chose the menu item as a
5468 if (!CONSP (start_pos
))
5471 event
->modifiers
&= ~up_modifier
;
5472 #if 0 /* Formerly we treated an up with no down as a click event. */
5473 if (!CONSP (start_pos
))
5474 event
->modifiers
|= click_modifier
;
5479 EMACS_INT xdiff
= double_click_fuzz
, ydiff
= double_click_fuzz
;
5481 /* The third element of every position
5482 should be the (x,y) pair. */
5483 down
= Fcar (Fcdr (Fcdr (start_pos
)));
5485 && INTEGERP (XCAR (down
)) && INTEGERP (XCDR (down
)))
5487 xdiff
= XFASTINT (event
->x
) - XFASTINT (XCAR (down
));
5488 ydiff
= XFASTINT (event
->y
) - XFASTINT (XCDR (down
));
5491 if (xdiff
< double_click_fuzz
&& xdiff
> - double_click_fuzz
5492 && ydiff
< double_click_fuzz
5493 && ydiff
> - double_click_fuzz
)
5494 /* Mouse hasn't moved (much). */
5495 event
->modifiers
|= click_modifier
;
5498 button_down_time
= 0;
5499 event
->modifiers
|= drag_modifier
;
5502 /* Don't check is_double; treat this as multiple
5503 if the down-event was multiple. */
5504 if (double_click_count
> 1)
5505 event
->modifiers
|= ((double_click_count
> 2)
5511 /* Every mouse event should either have the down_modifier or
5512 the up_modifier set. */
5516 /* Get the symbol we should use for the mouse click. */
5519 head
= modify_event_symbol (button
,
5521 Qmouse_click
, Vlispy_mouse_stem
,
5524 XVECTOR (mouse_syms
)->size
);
5525 if (event
->modifiers
& drag_modifier
)
5530 else if (event
->modifiers
& (double_modifier
| triple_modifier
))
5533 Fcons (make_number (double_click_count
),
5544 Lisp_Object position
;
5547 /* Build the position as appropriate for this mouse click. */
5548 struct frame
*f
= XFRAME (event
->frame_or_window
);
5550 /* Ignore wheel events that were made on frame that have been
5552 if (! FRAME_LIVE_P (f
))
5555 position
= make_lispy_position (f
, &event
->x
, &event
->y
,
5558 /* Set double or triple modifiers to indicate the wheel speed. */
5560 /* On window-system frames, use the value of
5561 double-click-fuzz as is. On other frames, interpret it
5562 as a multiple of 1/8 characters. */
5567 if (WINDOWP (event
->frame_or_window
))
5568 f
= XFRAME (XWINDOW (event
->frame_or_window
)->frame
);
5569 else if (FRAMEP (event
->frame_or_window
))
5570 f
= XFRAME (event
->frame_or_window
);
5574 if (FRAME_WINDOW_P (f
))
5575 fuzz
= double_click_fuzz
;
5577 fuzz
= double_click_fuzz
/ 8;
5579 is_double
= (last_mouse_button
< 0
5580 && (abs (XINT (event
->x
) - last_mouse_x
) <= fuzz
)
5581 && (abs (XINT (event
->y
) - last_mouse_y
) <= fuzz
)
5582 && button_down_time
!= 0
5583 && (EQ (Vdouble_click_time
, Qt
)
5584 || (INTEGERP (Vdouble_click_time
)
5585 && ((int)(event
->timestamp
- button_down_time
)
5586 < XINT (Vdouble_click_time
)))));
5589 double_click_count
++;
5590 event
->modifiers
|= ((double_click_count
> 2)
5596 double_click_count
= 1;
5597 event
->modifiers
|= click_modifier
;
5600 button_down_time
= event
->timestamp
;
5601 /* Use a negative value to distinguish wheel from mouse button. */
5602 last_mouse_button
= -1;
5603 last_mouse_x
= XINT (event
->x
);
5604 last_mouse_y
= XINT (event
->y
);
5610 if (event
->modifiers
& up_modifier
)
5612 /* Emit a wheel-up event. */
5613 event
->modifiers
&= ~up_modifier
;
5616 else if (event
->modifiers
& down_modifier
)
5618 /* Emit a wheel-down event. */
5619 event
->modifiers
&= ~down_modifier
;
5623 /* Every wheel event should either have the down_modifier or
5624 the up_modifier set. */
5627 /* Get the symbol we should use for the wheel event. */
5628 head
= modify_event_symbol (symbol_num
,
5634 ASIZE (wheel_syms
));
5637 if (event
->modifiers
& (double_modifier
| triple_modifier
))
5640 Fcons (make_number (double_click_count
),
5649 #ifdef USE_TOOLKIT_SCROLL_BARS
5651 /* We don't have down and up events if using toolkit scroll bars,
5652 so make this always a click event. Store in the `part' of
5653 the Lisp event a symbol which maps to the following actions:
5655 `above_handle' page up
5656 `below_handle' page down
5660 `bottom' bottom of buffer
5661 `handle' thumb has been dragged.
5662 `end-scroll' end of interaction with scroll bar
5664 The incoming input_event contains in its `part' member an
5665 index of type `enum scroll_bar_part' which we can use as an
5666 index in scroll_bar_parts to get the appropriate symbol. */
5668 case SCROLL_BAR_CLICK_EVENT
:
5670 Lisp_Object position
, head
, window
, portion_whole
, part
;
5672 window
= event
->frame_or_window
;
5673 portion_whole
= Fcons (event
->x
, event
->y
);
5674 part
= *scroll_bar_parts
[(int) event
->part
];
5678 Fcons (Qvertical_scroll_bar
,
5679 Fcons (portion_whole
,
5680 Fcons (make_number (event
->timestamp
),
5681 Fcons (part
, Qnil
)))));
5683 /* Always treat scroll bar events as clicks. */
5684 event
->modifiers
|= click_modifier
;
5685 event
->modifiers
&= ~up_modifier
;
5687 if (event
->code
>= ASIZE (mouse_syms
))
5688 mouse_syms
= larger_vector (mouse_syms
, event
->code
+ 1, Qnil
);
5690 /* Get the symbol we should use for the mouse click. */
5691 head
= modify_event_symbol (event
->code
,
5696 XVECTOR (mouse_syms
)->size
);
5697 return Fcons (head
, Fcons (position
, Qnil
));
5700 #endif /* USE_TOOLKIT_SCROLL_BARS */
5703 case W32_SCROLL_BAR_CLICK_EVENT
:
5705 int button
= event
->code
;
5707 Lisp_Object position
;
5708 Lisp_Object
*start_pos_ptr
;
5709 Lisp_Object start_pos
;
5713 Lisp_Object portion_whole
;
5716 window
= event
->frame_or_window
;
5717 portion_whole
= Fcons (event
->x
, event
->y
);
5718 part
= *scroll_bar_parts
[(int) event
->part
];
5722 Fcons (Qvertical_scroll_bar
,
5723 Fcons (portion_whole
,
5724 Fcons (make_number (event
->timestamp
),
5725 Fcons (part
, Qnil
)))));
5728 /* Always treat W32 scroll bar events as clicks. */
5729 event
->modifiers
|= click_modifier
;
5732 /* Get the symbol we should use for the mouse click. */
5735 head
= modify_event_symbol (button
,
5740 XVECTOR (mouse_syms
)->size
);
5746 #endif /* WINDOWSNT */
5748 case DRAG_N_DROP_EVENT
:
5751 Lisp_Object head
, position
;
5754 /* The frame_or_window field should be a cons of the frame in
5755 which the event occurred and a list of the filenames
5757 if (! CONSP (event
->frame_or_window
))
5760 f
= XFRAME (XCAR (event
->frame_or_window
));
5761 files
= XCDR (event
->frame_or_window
);
5763 /* Ignore mouse events that were made on frames that
5764 have been deleted. */
5765 if (! FRAME_LIVE_P (f
))
5768 position
= make_lispy_position (f
, &event
->x
, &event
->y
,
5771 head
= modify_event_symbol (0, event
->modifiers
,
5773 lispy_drag_n_drop_names
,
5774 &drag_n_drop_syms
, 1);
5780 #endif /* HAVE_MOUSE */
5782 #if defined (USE_X_TOOLKIT) || defined (HAVE_NTGUI) || defined (MAC_OS) \
5783 || defined (USE_GTK)
5784 case MENU_BAR_EVENT
:
5785 if (EQ (event
->arg
, event
->frame_or_window
))
5786 /* This is the prefix key. We translate this to
5787 `(menu_bar)' because the code in keyboard.c for menu
5788 events, which we use, relies on this. */
5789 return Fcons (Qmenu_bar
, Qnil
);
5793 case SELECT_WINDOW_EVENT
:
5794 /* Make an event (select-window (WINDOW)). */
5795 return Fcons (Qselect_window
,
5796 Fcons (Fcons (event
->frame_or_window
, Qnil
),
5799 case TOOL_BAR_EVENT
:
5800 if (EQ (event
->arg
, event
->frame_or_window
))
5801 /* This is the prefix key. We translate this to
5802 `(tool_bar)' because the code in keyboard.c for tool bar
5803 events, which we use, relies on this. */
5804 return Fcons (Qtool_bar
, Qnil
);
5805 else if (SYMBOLP (event
->arg
))
5806 return apply_modifiers (event
->modifiers
, event
->arg
);
5809 case USER_SIGNAL_EVENT
:
5810 /* A user signal. */
5811 return *lispy_user_signals
[event
->code
];
5813 case SAVE_SESSION_EVENT
:
5814 return Qsave_session
;
5816 /* The 'kind' field of the event is something we don't recognize. */
5825 make_lispy_movement (frame
, bar_window
, part
, x
, y
, time
)
5827 Lisp_Object bar_window
;
5828 enum scroll_bar_part part
;
5832 /* Is it a scroll bar movement? */
5833 if (frame
&& ! NILP (bar_window
))
5835 Lisp_Object part_sym
;
5837 part_sym
= *scroll_bar_parts
[(int) part
];
5838 return Fcons (Qscroll_bar_movement
,
5839 (Fcons (Fcons (bar_window
,
5840 Fcons (Qvertical_scroll_bar
,
5841 Fcons (Fcons (x
, y
),
5842 Fcons (make_number (time
),
5848 /* Or is it an ordinary mouse movement? */
5851 Lisp_Object position
;
5853 position
= make_lispy_position (frame
, &x
, &y
, time
);
5855 return Fcons (Qmouse_movement
,
5861 #endif /* HAVE_MOUSE */
5863 /* Construct a switch frame event. */
5865 make_lispy_switch_frame (frame
)
5868 return Fcons (Qswitch_frame
, Fcons (frame
, Qnil
));
5871 /* Manipulating modifiers. */
5873 /* Parse the name of SYMBOL, and return the set of modifiers it contains.
5875 If MODIFIER_END is non-zero, set *MODIFIER_END to the position in
5876 SYMBOL's name of the end of the modifiers; the string from this
5877 position is the unmodified symbol name.
5879 This doesn't use any caches. */
5882 parse_modifiers_uncached (symbol
, modifier_end
)
5890 CHECK_SYMBOL (symbol
);
5893 name
= SYMBOL_NAME (symbol
);
5895 for (i
= 0; i
+2 <= SBYTES (name
); )
5897 int this_mod_end
= 0;
5900 /* See if the name continues with a modifier word.
5901 Check that the word appears, but don't check what follows it.
5902 Set this_mod and this_mod_end to record what we find. */
5904 switch (SREF (name
, i
))
5906 #define SINGLE_LETTER_MOD(BIT) \
5907 (this_mod_end = i + 1, this_mod = BIT)
5910 SINGLE_LETTER_MOD (alt_modifier
);
5914 SINGLE_LETTER_MOD (ctrl_modifier
);
5918 SINGLE_LETTER_MOD (hyper_modifier
);
5922 SINGLE_LETTER_MOD (meta_modifier
);
5926 SINGLE_LETTER_MOD (shift_modifier
);
5930 SINGLE_LETTER_MOD (super_modifier
);
5933 #undef SINGLE_LETTER_MOD
5935 #define MULTI_LETTER_MOD(BIT, NAME, LEN) \
5936 if (i + LEN + 1 <= SBYTES (name) \
5937 && ! strncmp (SDATA (name) + i, NAME, LEN)) \
5939 this_mod_end = i + LEN; \
5944 MULTI_LETTER_MOD (drag_modifier
, "drag", 4);
5945 MULTI_LETTER_MOD (down_modifier
, "down", 4);
5946 MULTI_LETTER_MOD (double_modifier
, "double", 6);
5950 MULTI_LETTER_MOD (triple_modifier
, "triple", 6);
5952 #undef MULTI_LETTER_MOD
5956 /* If we found no modifier, stop looking for them. */
5957 if (this_mod_end
== 0)
5960 /* Check there is a dash after the modifier, so that it
5961 really is a modifier. */
5962 if (this_mod_end
>= SBYTES (name
)
5963 || SREF (name
, this_mod_end
) != '-')
5966 /* This modifier is real; look for another. */
5967 modifiers
|= this_mod
;
5968 i
= this_mod_end
+ 1;
5971 /* Should we include the `click' modifier? */
5972 if (! (modifiers
& (down_modifier
| drag_modifier
5973 | double_modifier
| triple_modifier
))
5974 && i
+ 7 == SBYTES (name
)
5975 && strncmp (SDATA (name
) + i
, "mouse-", 6) == 0
5976 && ('0' <= SREF (name
, i
+ 6) && SREF (name
, i
+ 6) <= '9'))
5977 modifiers
|= click_modifier
;
5985 /* Return a symbol whose name is the modifier prefixes for MODIFIERS
5986 prepended to the string BASE[0..BASE_LEN-1].
5987 This doesn't use any caches. */
5989 apply_modifiers_uncached (modifiers
, base
, base_len
, base_len_byte
)
5992 int base_len
, base_len_byte
;
5994 /* Since BASE could contain nulls, we can't use intern here; we have
5995 to use Fintern, which expects a genuine Lisp_String, and keeps a
5998 = (char *) alloca (sizeof ("A-C-H-M-S-s-down-drag-double-triple-"));
6004 /* Only the event queue may use the `up' modifier; it should always
6005 be turned into a click or drag event before presented to lisp code. */
6006 if (modifiers
& up_modifier
)
6009 if (modifiers
& alt_modifier
) { *p
++ = 'A'; *p
++ = '-'; }
6010 if (modifiers
& ctrl_modifier
) { *p
++ = 'C'; *p
++ = '-'; }
6011 if (modifiers
& hyper_modifier
) { *p
++ = 'H'; *p
++ = '-'; }
6012 if (modifiers
& meta_modifier
) { *p
++ = 'M'; *p
++ = '-'; }
6013 if (modifiers
& shift_modifier
) { *p
++ = 'S'; *p
++ = '-'; }
6014 if (modifiers
& super_modifier
) { *p
++ = 's'; *p
++ = '-'; }
6015 if (modifiers
& double_modifier
) { strcpy (p
, "double-"); p
+= 7; }
6016 if (modifiers
& triple_modifier
) { strcpy (p
, "triple-"); p
+= 7; }
6017 if (modifiers
& down_modifier
) { strcpy (p
, "down-"); p
+= 5; }
6018 if (modifiers
& drag_modifier
) { strcpy (p
, "drag-"); p
+= 5; }
6019 /* The click modifier is denoted by the absence of other modifiers. */
6023 mod_len
= p
- new_mods
;
6027 Lisp_Object new_name
;
6029 new_name
= make_uninit_multibyte_string (mod_len
+ base_len
,
6030 mod_len
+ base_len_byte
);
6031 bcopy (new_mods
, SDATA (new_name
), mod_len
);
6032 bcopy (base
, SDATA (new_name
) + mod_len
, base_len_byte
);
6034 return Fintern (new_name
, Qnil
);
6039 static char *modifier_names
[] =
6041 "up", "down", "drag", "click", "double", "triple", 0, 0,
6042 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
6043 0, 0, "alt", "super", "hyper", "shift", "control", "meta"
6045 #define NUM_MOD_NAMES (sizeof (modifier_names) / sizeof (modifier_names[0]))
6047 static Lisp_Object modifier_symbols
;
6049 /* Return the list of modifier symbols corresponding to the mask MODIFIERS. */
6051 lispy_modifier_list (modifiers
)
6054 Lisp_Object modifier_list
;
6057 modifier_list
= Qnil
;
6058 for (i
= 0; (1<<i
) <= modifiers
&& i
< NUM_MOD_NAMES
; i
++)
6059 if (modifiers
& (1<<i
))
6060 modifier_list
= Fcons (XVECTOR (modifier_symbols
)->contents
[i
],
6063 return modifier_list
;
6067 /* Parse the modifiers on SYMBOL, and return a list like (UNMODIFIED MASK),
6068 where UNMODIFIED is the unmodified form of SYMBOL,
6069 MASK is the set of modifiers present in SYMBOL's name.
6070 This is similar to parse_modifiers_uncached, but uses the cache in
6071 SYMBOL's Qevent_symbol_element_mask property, and maintains the
6072 Qevent_symbol_elements property. */
6075 parse_modifiers (symbol
)
6078 Lisp_Object elements
;
6080 elements
= Fget (symbol
, Qevent_symbol_element_mask
);
6081 if (CONSP (elements
))
6086 int modifiers
= parse_modifiers_uncached (symbol
, &end
);
6087 Lisp_Object unmodified
;
6090 unmodified
= Fintern (make_string (SDATA (SYMBOL_NAME (symbol
)) + end
,
6091 SBYTES (SYMBOL_NAME (symbol
)) - end
),
6094 if (modifiers
& ~INTMASK
)
6096 XSETFASTINT (mask
, modifiers
);
6097 elements
= Fcons (unmodified
, Fcons (mask
, Qnil
));
6099 /* Cache the parsing results on SYMBOL. */
6100 Fput (symbol
, Qevent_symbol_element_mask
,
6102 Fput (symbol
, Qevent_symbol_elements
,
6103 Fcons (unmodified
, lispy_modifier_list (modifiers
)));
6105 /* Since we know that SYMBOL is modifiers applied to unmodified,
6106 it would be nice to put that in unmodified's cache.
6107 But we can't, since we're not sure that parse_modifiers is
6114 /* Apply the modifiers MODIFIERS to the symbol BASE.
6115 BASE must be unmodified.
6117 This is like apply_modifiers_uncached, but uses BASE's
6118 Qmodifier_cache property, if present. It also builds
6119 Qevent_symbol_elements properties, since it has that info anyway.
6121 apply_modifiers copies the value of BASE's Qevent_kind property to
6122 the modified symbol. */
6124 apply_modifiers (modifiers
, base
)
6128 Lisp_Object cache
, index
, entry
, new_symbol
;
6130 /* Mask out upper bits. We don't know where this value's been. */
6131 modifiers
&= INTMASK
;
6133 /* The click modifier never figures into cache indices. */
6134 cache
= Fget (base
, Qmodifier_cache
);
6135 XSETFASTINT (index
, (modifiers
& ~click_modifier
));
6136 entry
= assq_no_quit (index
, cache
);
6139 new_symbol
= XCDR (entry
);
6142 /* We have to create the symbol ourselves. */
6143 new_symbol
= apply_modifiers_uncached (modifiers
,
6144 SDATA (SYMBOL_NAME (base
)),
6145 SCHARS (SYMBOL_NAME (base
)),
6146 SBYTES (SYMBOL_NAME (base
)));
6148 /* Add the new symbol to the base's cache. */
6149 entry
= Fcons (index
, new_symbol
);
6150 Fput (base
, Qmodifier_cache
, Fcons (entry
, cache
));
6152 /* We have the parsing info now for free, so we could add it to
6154 XSETFASTINT (index, modifiers);
6155 Fput (new_symbol, Qevent_symbol_element_mask,
6156 Fcons (base, Fcons (index, Qnil)));
6157 Fput (new_symbol, Qevent_symbol_elements,
6158 Fcons (base, lispy_modifier_list (modifiers)));
6159 Sadly, this is only correct if `base' is indeed a base event,
6160 which is not necessarily the case. -stef */
6163 /* Make sure this symbol is of the same kind as BASE.
6165 You'd think we could just set this once and for all when we
6166 intern the symbol above, but reorder_modifiers may call us when
6167 BASE's property isn't set right; we can't assume that just
6168 because it has a Qmodifier_cache property it must have its
6169 Qevent_kind set right as well. */
6170 if (NILP (Fget (new_symbol
, Qevent_kind
)))
6174 kind
= Fget (base
, Qevent_kind
);
6176 Fput (new_symbol
, Qevent_kind
, kind
);
6183 /* Given a symbol whose name begins with modifiers ("C-", "M-", etc),
6184 return a symbol with the modifiers placed in the canonical order.
6185 Canonical order is alphabetical, except for down and drag, which
6186 always come last. The 'click' modifier is never written out.
6188 Fdefine_key calls this to make sure that (for example) C-M-foo
6189 and M-C-foo end up being equivalent in the keymap. */
6192 reorder_modifiers (symbol
)
6195 /* It's hopefully okay to write the code this way, since everything
6196 will soon be in caches, and no consing will be done at all. */
6199 parsed
= parse_modifiers (symbol
);
6200 return apply_modifiers ((int) XINT (XCAR (XCDR (parsed
))),
6205 /* For handling events, we often want to produce a symbol whose name
6206 is a series of modifier key prefixes ("M-", "C-", etcetera) attached
6207 to some base, like the name of a function key or mouse button.
6208 modify_event_symbol produces symbols of this sort.
6210 NAME_TABLE should point to an array of strings, such that NAME_TABLE[i]
6211 is the name of the i'th symbol. TABLE_SIZE is the number of elements
6214 Alternatively, NAME_ALIST_OR_STEM is either an alist mapping codes
6215 into symbol names, or a string specifying a name stem used to
6216 construct a symbol name or the form `STEM-N', where N is the decimal
6217 representation of SYMBOL_NUM. NAME_ALIST_OR_STEM is used if it is
6218 non-nil; otherwise NAME_TABLE is used.
6220 SYMBOL_TABLE should be a pointer to a Lisp_Object whose value will
6221 persist between calls to modify_event_symbol that it can use to
6222 store a cache of the symbols it's generated for this NAME_TABLE
6223 before. The object stored there may be a vector or an alist.
6225 SYMBOL_NUM is the number of the base name we want from NAME_TABLE.
6227 MODIFIERS is a set of modifier bits (as given in struct input_events)
6228 whose prefixes should be applied to the symbol name.
6230 SYMBOL_KIND is the value to be placed in the event_kind property of
6231 the returned symbol.
6233 The symbols we create are supposed to have an
6234 `event-symbol-elements' property, which lists the modifiers present
6235 in the symbol's name. */
6238 modify_event_symbol (symbol_num
, modifiers
, symbol_kind
, name_alist_or_stem
,
6239 name_table
, symbol_table
, table_size
)
6242 Lisp_Object symbol_kind
;
6243 Lisp_Object name_alist_or_stem
;
6245 Lisp_Object
*symbol_table
;
6246 unsigned int table_size
;
6249 Lisp_Object symbol_int
;
6251 /* Get rid of the "vendor-specific" bit here. */
6252 XSETINT (symbol_int
, symbol_num
& 0xffffff);
6254 /* Is this a request for a valid symbol? */
6255 if (symbol_num
< 0 || symbol_num
>= table_size
)
6258 if (CONSP (*symbol_table
))
6259 value
= Fcdr (assq_no_quit (symbol_int
, *symbol_table
));
6261 /* If *symbol_table doesn't seem to be initialized properly, fix that.
6262 *symbol_table should be a lisp vector TABLE_SIZE elements long,
6263 where the Nth element is the symbol for NAME_TABLE[N], or nil if
6264 we've never used that symbol before. */
6267 if (! VECTORP (*symbol_table
)
6268 || XVECTOR (*symbol_table
)->size
!= table_size
)
6272 XSETFASTINT (size
, table_size
);
6273 *symbol_table
= Fmake_vector (size
, Qnil
);
6276 value
= XVECTOR (*symbol_table
)->contents
[symbol_num
];
6279 /* Have we already used this symbol before? */
6282 /* No; let's create it. */
6283 if (CONSP (name_alist_or_stem
))
6284 value
= Fcdr_safe (Fassq (symbol_int
, name_alist_or_stem
));
6285 else if (STRINGP (name_alist_or_stem
))
6287 int len
= SBYTES (name_alist_or_stem
);
6288 char *buf
= (char *) alloca (len
+ 50);
6289 sprintf (buf
, "%s-%ld", SDATA (name_alist_or_stem
),
6290 (long) XINT (symbol_int
) + 1);
6291 value
= intern (buf
);
6293 else if (name_table
!= 0 && name_table
[symbol_num
])
6294 value
= intern (name_table
[symbol_num
]);
6296 #ifdef HAVE_WINDOW_SYSTEM
6299 char *name
= x_get_keysym_name (symbol_num
);
6301 value
= intern (name
);
6308 sprintf (buf
, "key-%d", symbol_num
);
6309 value
= intern (buf
);
6312 if (CONSP (*symbol_table
))
6313 *symbol_table
= Fcons (Fcons (symbol_int
, value
), *symbol_table
);
6315 XVECTOR (*symbol_table
)->contents
[symbol_num
] = value
;
6317 /* Fill in the cache entries for this symbol; this also
6318 builds the Qevent_symbol_elements property, which the user
6320 apply_modifiers (modifiers
& click_modifier
, value
);
6321 Fput (value
, Qevent_kind
, symbol_kind
);
6324 /* Apply modifiers to that symbol. */
6325 return apply_modifiers (modifiers
, value
);
6328 /* Convert a list that represents an event type,
6329 such as (ctrl meta backspace), into the usual representation of that
6330 event type as a number or a symbol. */
6332 DEFUN ("event-convert-list", Fevent_convert_list
, Sevent_convert_list
, 1, 1, 0,
6333 doc
: /* Convert the event description list EVENT-DESC to an event type.
6334 EVENT-DESC should contain one base event type (a character or symbol)
6335 and zero or more modifier names (control, meta, hyper, super, shift, alt,
6336 drag, down, double or triple). The base must be last.
6337 The return value is an event type (a character or symbol) which
6338 has the same base event type and all the specified modifiers. */)
6340 Lisp_Object event_desc
;
6348 while (CONSP (rest
))
6356 /* Given a symbol, see if it is a modifier name. */
6357 if (SYMBOLP (elt
) && CONSP (rest
))
6358 this = parse_solitary_modifier (elt
);
6362 else if (!NILP (base
))
6363 error ("Two bases given in one event");
6369 /* Let the symbol A refer to the character A. */
6370 if (SYMBOLP (base
) && SCHARS (SYMBOL_NAME (base
)) == 1)
6371 XSETINT (base
, SREF (SYMBOL_NAME (base
), 0));
6373 if (INTEGERP (base
))
6375 /* Turn (shift a) into A. */
6376 if ((modifiers
& shift_modifier
) != 0
6377 && (XINT (base
) >= 'a' && XINT (base
) <= 'z'))
6379 XSETINT (base
, XINT (base
) - ('a' - 'A'));
6380 modifiers
&= ~shift_modifier
;
6383 /* Turn (control a) into C-a. */
6384 if (modifiers
& ctrl_modifier
)
6385 return make_number ((modifiers
& ~ctrl_modifier
)
6386 | make_ctrl_char (XINT (base
)));
6388 return make_number (modifiers
| XINT (base
));
6390 else if (SYMBOLP (base
))
6391 return apply_modifiers (modifiers
, base
);
6394 error ("Invalid base event");
6399 /* Try to recognize SYMBOL as a modifier name.
6400 Return the modifier flag bit, or 0 if not recognized. */
6403 parse_solitary_modifier (symbol
)
6406 Lisp_Object name
= SYMBOL_NAME (symbol
);
6408 switch (SREF (name
, 0))
6410 #define SINGLE_LETTER_MOD(BIT) \
6411 if (SBYTES (name) == 1) \
6414 #define MULTI_LETTER_MOD(BIT, NAME, LEN) \
6415 if (LEN == SBYTES (name) \
6416 && ! strncmp (SDATA (name), NAME, LEN)) \
6420 SINGLE_LETTER_MOD (alt_modifier
);
6424 MULTI_LETTER_MOD (alt_modifier
, "alt", 3);
6428 SINGLE_LETTER_MOD (ctrl_modifier
);
6432 MULTI_LETTER_MOD (ctrl_modifier
, "ctrl", 4);
6433 MULTI_LETTER_MOD (ctrl_modifier
, "control", 7);
6437 SINGLE_LETTER_MOD (hyper_modifier
);
6441 MULTI_LETTER_MOD (hyper_modifier
, "hyper", 5);
6445 SINGLE_LETTER_MOD (meta_modifier
);
6449 MULTI_LETTER_MOD (meta_modifier
, "meta", 4);
6453 SINGLE_LETTER_MOD (shift_modifier
);
6457 MULTI_LETTER_MOD (shift_modifier
, "shift", 5);
6458 MULTI_LETTER_MOD (super_modifier
, "super", 5);
6459 SINGLE_LETTER_MOD (super_modifier
);
6463 MULTI_LETTER_MOD (drag_modifier
, "drag", 4);
6464 MULTI_LETTER_MOD (down_modifier
, "down", 4);
6465 MULTI_LETTER_MOD (double_modifier
, "double", 6);
6469 MULTI_LETTER_MOD (triple_modifier
, "triple", 6);
6472 #undef SINGLE_LETTER_MOD
6473 #undef MULTI_LETTER_MOD
6479 /* Return 1 if EVENT is a list whose elements are all integers or symbols.
6480 Such a list is not valid as an event,
6481 but it can be a Lucid-style event type list. */
6484 lucid_event_type_list_p (object
)
6489 if (! CONSP (object
))
6492 if (EQ (XCAR (object
), Qhelp_echo
)
6493 || EQ (XCAR (object
), Qvertical_line
)
6494 || EQ (XCAR (object
), Qmode_line
)
6495 || EQ (XCAR (object
), Qheader_line
))
6498 for (tail
= object
; CONSP (tail
); tail
= XCDR (tail
))
6502 if (! (INTEGERP (elt
) || SYMBOLP (elt
)))
6509 /* Store into *addr a value nonzero if terminal input chars are available.
6510 Serves the purpose of ioctl (0, FIONREAD, addr)
6511 but works even if FIONREAD does not exist.
6512 (In fact, this may actually read some input.)
6514 If READABLE_EVENTS_DO_TIMERS_NOW is set in FLAGS, actually run
6515 timer events that are ripe.
6516 If READABLE_EVENTS_FILTER_EVENTS is set in FLAGS, ignore internal
6517 events (FOCUS_IN_EVENT).
6518 If READABLE_EVENTS_IGNORE_SQUEEZABLES is set in FLAGS, ignore mouse
6522 get_input_pending (addr
, flags
)
6526 /* First of all, have we already counted some input? */
6527 *addr
= (!NILP (Vquit_flag
) || readable_events (flags
));
6529 /* If input is being read as it arrives, and we have none, there is none. */
6530 if (*addr
> 0 || (interrupt_input
&& ! interrupts_deferred
))
6533 /* Try to read some input and see how much we get. */
6535 *addr
= (!NILP (Vquit_flag
) || readable_events (flags
));
6538 /* Interface to read_avail_input, blocking SIGIO or SIGALRM if necessary. */
6541 gobble_input (expected
)
6546 if (interrupt_input
)
6549 mask
= sigblock (sigmask (SIGIO
));
6550 read_avail_input (expected
);
6554 #ifdef POLL_FOR_INPUT
6555 /* XXX This condition was (read_socket_hook && !interrupt_input),
6556 but read_socket_hook is not global anymore. Let's pretend that
6558 if (!interrupt_input
&& poll_suppress_count
== 0)
6561 mask
= sigblock (sigmask (SIGALRM
));
6562 read_avail_input (expected
);
6568 read_avail_input (expected
);
6572 /* Put a BUFFER_SWITCH_EVENT in the buffer
6573 so that read_key_sequence will notice the new current buffer. */
6576 record_asynch_buffer_change ()
6578 struct input_event event
;
6582 event
.kind
= BUFFER_SWITCH_EVENT
;
6583 event
.frame_or_window
= Qnil
;
6587 /* We don't need a buffer-switch event unless Emacs is waiting for input.
6588 The purpose of the event is to make read_key_sequence look up the
6589 keymaps again. If we aren't in read_key_sequence, we don't need one,
6590 and the event could cause trouble by messing up (input-pending-p). */
6591 tem
= Fwaiting_for_user_input_p ();
6595 /* We never need these events if we have no asynchronous subprocesses. */
6599 /* Make sure no interrupt happens while storing the event. */
6601 if (interrupt_input
)
6604 mask
= sigblock (sigmask (SIGIO
));
6605 kbd_buffer_store_event (&event
);
6612 kbd_buffer_store_event (&event
);
6619 /* Read any terminal input already buffered up by the system
6620 into the kbd_buffer, but do not wait.
6622 EXPECTED should be nonzero if the caller knows there is some input.
6624 Except on VMS, all input is read by this function.
6625 If interrupt_input is nonzero, this function MUST be called
6626 only when SIGIO is blocked.
6628 Returns the number of keyboard chars read, or -1 meaning
6629 this is a bad time to try to read input. */
6632 read_avail_input (expected
)
6639 /* Loop through the available displays, and call their input hooks. */
6643 struct display
*next
= d
->next_display
;
6645 if (d
->read_socket_hook
)
6648 struct input_event hold_quit
;
6650 EVENT_INIT (hold_quit
);
6651 hold_quit
.kind
= NO_EVENT
;
6653 /* No need for FIONREAD or fcntl; just say don't wait. */
6654 while (nr
= (*d
->read_socket_hook
) (d
, expected
, &hold_quit
), nr
> 0)
6660 if (nr
== -1) /* Not OK to read input now. */
6664 else if (nr
== -2) /* Non-transient error. */
6666 /* The display device terminated; it should be closed. */
6668 /* Kill Emacs if this was our last display. */
6669 if (! display_list
->next_display
)
6670 /* Formerly simply reported no input, but that
6671 sometimes led to a failure of Emacs to terminate.
6672 SIGHUP seems appropriate if we can't reach the
6674 /* ??? Is it really right to send the signal just to
6675 this process rather than to the whole process
6676 group? Perhaps on systems with FIONREAD Emacs is
6677 alone in its group. */
6678 kill (getpid (), SIGHUP
);
6680 /* XXX Is calling delete_display safe here? It calls Fdelete_frame. */
6681 if (d
->delete_display_hook
)
6682 (*d
->delete_display_hook
) (d
);
6687 if (hold_quit
.kind
!= NO_EVENT
)
6688 kbd_buffer_store_event (&hold_quit
);
6700 /* This is the tty way of reading available input.
6702 Note that each terminal device has its own `struct display' object,
6703 and so this function is called once for each individual termcap
6704 display. The first parameter indicates which device to read from. */
6707 tty_read_avail_input (struct display
*display
,
6709 struct input_event
*hold_quit
)
6711 /* Using KBD_BUFFER_SIZE - 1 here avoids reading more than
6712 the kbd_buffer can really hold. That may prevent loss
6713 of characters on some systems when input is stuffed at us. */
6714 unsigned char cbuf
[KBD_BUFFER_SIZE
- 1];
6716 struct tty_display_info
*tty
= display
->display_info
.tty
;
6719 if (display
->type
!= output_termcap
)
6722 /* XXX I think the following code should be moved to separate hook
6723 functions in system-dependent files. */
6726 #else /* not WINDOWSNT */
6728 n_to_read
= dos_keysns ();
6732 cbuf
[0] = dos_keyread ();
6735 #else /* not MSDOS */
6737 if (! tty
->term_initted
) /* In case we get called during bootstrap. */
6741 return 0; /* The terminal is suspended. */
6743 /* Determine how many characters we should *try* to read. */
6745 /* Find out how much input is available. */
6746 if (ioctl (fileno (tty
->input
), FIONREAD
, &n_to_read
) < 0)
6748 if (! noninteractive
)
6749 return -2; /* Close this display. */
6755 if (n_to_read
> sizeof cbuf
)
6756 n_to_read
= sizeof cbuf
;
6757 #else /* no FIONREAD */
6758 #if defined (USG) || defined (DGUX) || defined(CYGWIN)
6759 /* Read some input if available, but don't wait. */
6760 n_to_read
= sizeof cbuf
;
6761 fcntl (fileno (tty
->input
), F_SETFL
, O_NDELAY
);
6767 /* Now read; for one reason or another, this will not block.
6768 NREAD is set to the number of chars read. */
6771 nread
= emacs_read (fileno (tty
->input
), cbuf
, n_to_read
);
6772 /* POSIX infers that processes which are not in the session leader's
6773 process group won't get SIGHUP's at logout time. BSDI adheres to
6774 this part standard and returns -1 from read (0) with errno==EIO
6775 when the control tty is taken away.
6776 Jeffrey Honig <jch@bsdi.com> says this is generally safe. */
6777 if (nread
== -1 && errno
== EIO
)
6778 return -2; /* Close this display. */
6779 #if defined (AIX) && (! defined (aix386) && defined (_BSD))
6780 /* The kernel sometimes fails to deliver SIGHUP for ptys.
6781 This looks incorrect, but it isn't, because _BSD causes
6782 O_NDELAY to be defined in fcntl.h as O_NONBLOCK,
6783 and that causes a value other than 0 when there is no input. */
6785 return -2; /* Close this display. */
6789 /* We used to retry the read if it was interrupted.
6790 But this does the wrong thing when O_NDELAY causes
6791 an EAGAIN error. Does anybody know of a situation
6792 where a retry is actually needed? */
6794 nread
< 0 && (errno
== EAGAIN
6808 #if defined (USG) || defined (DGUX) || defined (CYGWIN)
6809 fcntl (fileno (tty
->input
), F_SETFL
, 0);
6810 #endif /* USG or DGUX or CYGWIN */
6811 #endif /* no FIONREAD */
6816 #endif /* not MSDOS */
6817 #endif /* not WINDOWSNT */
6819 for (i
= 0; i
< nread
; i
++)
6821 struct input_event buf
;
6823 buf
.kind
= ASCII_KEYSTROKE_EVENT
;
6825 if (tty
->meta_key
== 1 && (cbuf
[i
] & 0x80))
6826 buf
.modifiers
= meta_modifier
;
6827 if (tty
->meta_key
!= 2)
6831 /* Set the frame corresponding to the active tty. Note that the
6832 value of selected_frame is not reliable here, redisplay tends
6833 to temporarily change it. */
6834 buf
.frame_or_window
= tty
->top_frame
;
6837 kbd_buffer_store_event (&buf
);
6838 /* Don't look at input that follows a C-g too closely.
6839 This reduces lossage due to autorepeat on C-g. */
6840 if (buf
.kind
== ASCII_KEYSTROKE_EVENT
6841 && buf
.code
== quit_char
)
6847 #endif /* not VMS */
6850 handle_async_input ()
6853 extern int select_alarmed
;
6856 interrupt_input_pending
= 0;
6861 nread
= read_avail_input (1);
6862 /* -1 means it's not ok to read the input now.
6863 UNBLOCK_INPUT will read it later; now, avoid infinite loop.
6864 0 means there was no keyboard input available. */
6869 select_alarmed
= 1; /* Force the select emulator back to life */
6874 #ifdef SIGIO /* for entire page */
6875 /* Note SIGIO has been undef'd if FIONREAD is missing. */
6878 input_available_signal (signo
)
6881 /* Must preserve main program's value of errno. */
6882 int old_errno
= errno
;
6883 #if defined (USG) && !defined (POSIX_SIGNALS)
6884 /* USG systems forget handlers when they are used;
6885 must reestablish each time */
6886 signal (signo
, input_available_signal
);
6894 interrupt_input_pending
= 1;
6896 SIGNAL_THREAD_CHECK (signo
);
6899 if (input_available_clear_time
)
6900 EMACS_SET_SECS_USECS (*input_available_clear_time
, 0, 0);
6903 handle_async_input ();
6913 /* Send ourselves a SIGIO.
6915 This function exists so that the UNBLOCK_INPUT macro in
6916 blockinput.h can have some way to take care of input we put off
6917 dealing with, without assuming that every file which uses
6918 UNBLOCK_INPUT also has #included the files necessary to get SIGIO. */
6920 reinvoke_input_signal ()
6923 handle_async_input ();
6929 static void menu_bar_item
P_ ((Lisp_Object
, Lisp_Object
, Lisp_Object
, void*));
6930 static Lisp_Object menu_bar_one_keymap_changed_items
;
6932 /* These variables hold the vector under construction within
6933 menu_bar_items and its subroutines, and the current index
6934 for storing into that vector. */
6935 static Lisp_Object menu_bar_items_vector
;
6936 static int menu_bar_items_index
;
6938 /* Return a vector of menu items for a menu bar, appropriate
6939 to the current buffer. Each item has three elements in the vector:
6942 OLD is an old vector we can optionally reuse, or nil. */
6945 menu_bar_items (old
)
6948 /* The number of keymaps we're scanning right now, and the number of
6949 keymaps we have allocated space for. */
6952 /* maps[0..nmaps-1] are the prefix definitions of KEYBUF[0..t-1]
6953 in the current keymaps, or nil where it is not a prefix. */
6956 Lisp_Object def
, tail
;
6965 struct gcpro gcpro1
;
6967 /* In order to build the menus, we need to call the keymap
6968 accessors. They all call QUIT. But this function is called
6969 during redisplay, during which a quit is fatal. So inhibit
6970 quitting while building the menus.
6971 We do this instead of specbind because (1) errors will clear it anyway
6972 and (2) this avoids risk of specpdl overflow. */
6973 oquit
= Vinhibit_quit
;
6977 menu_bar_items_vector
= old
;
6979 menu_bar_items_vector
= Fmake_vector (make_number (24), Qnil
);
6980 menu_bar_items_index
= 0;
6982 GCPRO1 (menu_bar_items_vector
);
6984 /* Build our list of keymaps.
6985 If we recognize a function key and replace its escape sequence in
6986 keybuf with its symbol, or if the sequence starts with a mouse
6987 click and we need to switch buffers, we jump back here to rebuild
6988 the initial keymaps from the current buffer. */
6992 /* Should overriding-terminal-local-map and overriding-local-map apply? */
6993 if (!NILP (Voverriding_local_map_menu_flag
))
6995 /* Yes, use them (if non-nil) as well as the global map. */
6996 maps
= (Lisp_Object
*) alloca (3 * sizeof (maps
[0]));
6998 if (!NILP (current_kboard
->Voverriding_terminal_local_map
))
6999 maps
[nmaps
++] = current_kboard
->Voverriding_terminal_local_map
;
7000 if (!NILP (Voverriding_local_map
))
7001 maps
[nmaps
++] = Voverriding_local_map
;
7005 /* No, so use major and minor mode keymaps and keymap property.
7006 Note that menu-bar bindings in the local-map and keymap
7007 properties may not work reliable, as they are only
7008 recognized when the menu-bar (or mode-line) is updated,
7009 which does not normally happen after every command. */
7012 nminor
= current_minor_maps (NULL
, &tmaps
);
7013 maps
= (Lisp_Object
*) alloca ((nminor
+ 3) * sizeof (maps
[0]));
7015 if (tem
= get_local_map (PT
, current_buffer
, Qkeymap
), !NILP (tem
))
7016 maps
[nmaps
++] = tem
;
7017 bcopy (tmaps
, (void *) (maps
+ nmaps
), nminor
* sizeof (maps
[0]));
7019 maps
[nmaps
++] = get_local_map (PT
, current_buffer
, Qlocal_map
);
7021 maps
[nmaps
++] = current_global_map
;
7024 /* Look up in each map the dummy prefix key `menu-bar'. */
7028 for (mapno
= nmaps
- 1; mapno
>= 0; mapno
--)
7029 if (!NILP (maps
[mapno
]))
7031 def
= get_keymap (access_keymap (maps
[mapno
], Qmenu_bar
, 1, 0, 1),
7035 menu_bar_one_keymap_changed_items
= Qnil
;
7036 map_keymap (def
, menu_bar_item
, Qnil
, NULL
, 1);
7040 /* Move to the end those items that should be at the end. */
7042 for (tail
= Vmenu_bar_final_items
; CONSP (tail
); tail
= XCDR (tail
))
7045 int end
= menu_bar_items_index
;
7047 for (i
= 0; i
< end
; i
+= 4)
7048 if (EQ (XCAR (tail
), XVECTOR (menu_bar_items_vector
)->contents
[i
]))
7050 Lisp_Object tem0
, tem1
, tem2
, tem3
;
7051 /* Move the item at index I to the end,
7052 shifting all the others forward. */
7053 tem0
= XVECTOR (menu_bar_items_vector
)->contents
[i
+ 0];
7054 tem1
= XVECTOR (menu_bar_items_vector
)->contents
[i
+ 1];
7055 tem2
= XVECTOR (menu_bar_items_vector
)->contents
[i
+ 2];
7056 tem3
= XVECTOR (menu_bar_items_vector
)->contents
[i
+ 3];
7058 bcopy (&XVECTOR (menu_bar_items_vector
)->contents
[i
+ 4],
7059 &XVECTOR (menu_bar_items_vector
)->contents
[i
],
7060 (end
- i
- 4) * sizeof (Lisp_Object
));
7061 XVECTOR (menu_bar_items_vector
)->contents
[end
- 4] = tem0
;
7062 XVECTOR (menu_bar_items_vector
)->contents
[end
- 3] = tem1
;
7063 XVECTOR (menu_bar_items_vector
)->contents
[end
- 2] = tem2
;
7064 XVECTOR (menu_bar_items_vector
)->contents
[end
- 1] = tem3
;
7069 /* Add nil, nil, nil, nil at the end. */
7070 i
= menu_bar_items_index
;
7071 if (i
+ 4 > XVECTOR (menu_bar_items_vector
)->size
)
7074 tem
= Fmake_vector (make_number (2 * i
), Qnil
);
7075 bcopy (XVECTOR (menu_bar_items_vector
)->contents
,
7076 XVECTOR (tem
)->contents
, i
* sizeof (Lisp_Object
));
7077 menu_bar_items_vector
= tem
;
7079 /* Add this item. */
7080 XVECTOR (menu_bar_items_vector
)->contents
[i
++] = Qnil
;
7081 XVECTOR (menu_bar_items_vector
)->contents
[i
++] = Qnil
;
7082 XVECTOR (menu_bar_items_vector
)->contents
[i
++] = Qnil
;
7083 XVECTOR (menu_bar_items_vector
)->contents
[i
++] = Qnil
;
7084 menu_bar_items_index
= i
;
7086 Vinhibit_quit
= oquit
;
7088 return menu_bar_items_vector
;
7091 /* Add one item to menu_bar_items_vector, for KEY, ITEM_STRING and DEF.
7092 If there's already an item for KEY, add this DEF to it. */
7094 Lisp_Object item_properties
;
7097 menu_bar_item (key
, item
, dummy1
, dummy2
)
7098 Lisp_Object key
, item
, dummy1
;
7101 struct gcpro gcpro1
;
7105 if (EQ (item
, Qundefined
))
7107 /* If a map has an explicit `undefined' as definition,
7108 discard any previously made menu bar item. */
7110 for (i
= 0; i
< menu_bar_items_index
; i
+= 4)
7111 if (EQ (key
, XVECTOR (menu_bar_items_vector
)->contents
[i
]))
7113 if (menu_bar_items_index
> i
+ 4)
7114 bcopy (&XVECTOR (menu_bar_items_vector
)->contents
[i
+ 4],
7115 &XVECTOR (menu_bar_items_vector
)->contents
[i
],
7116 (menu_bar_items_index
- i
- 4) * sizeof (Lisp_Object
));
7117 menu_bar_items_index
-= 4;
7121 /* If this keymap has already contributed to this KEY,
7122 don't contribute to it a second time. */
7123 tem
= Fmemq (key
, menu_bar_one_keymap_changed_items
);
7124 if (!NILP (tem
) || NILP (item
))
7127 menu_bar_one_keymap_changed_items
7128 = Fcons (key
, menu_bar_one_keymap_changed_items
);
7130 /* We add to menu_bar_one_keymap_changed_items before doing the
7131 parse_menu_item, so that if it turns out it wasn't a menu item,
7132 it still correctly hides any further menu item. */
7134 i
= parse_menu_item (item
, 0, 1);
7139 item
= XVECTOR (item_properties
)->contents
[ITEM_PROPERTY_DEF
];
7141 /* Find any existing item for this KEY. */
7142 for (i
= 0; i
< menu_bar_items_index
; i
+= 4)
7143 if (EQ (key
, XVECTOR (menu_bar_items_vector
)->contents
[i
]))
7146 /* If we did not find this KEY, add it at the end. */
7147 if (i
== menu_bar_items_index
)
7149 /* If vector is too small, get a bigger one. */
7150 if (i
+ 4 > XVECTOR (menu_bar_items_vector
)->size
)
7153 tem
= Fmake_vector (make_number (2 * i
), Qnil
);
7154 bcopy (XVECTOR (menu_bar_items_vector
)->contents
,
7155 XVECTOR (tem
)->contents
, i
* sizeof (Lisp_Object
));
7156 menu_bar_items_vector
= tem
;
7159 /* Add this item. */
7160 XVECTOR (menu_bar_items_vector
)->contents
[i
++] = key
;
7161 XVECTOR (menu_bar_items_vector
)->contents
[i
++]
7162 = XVECTOR (item_properties
)->contents
[ITEM_PROPERTY_NAME
];
7163 XVECTOR (menu_bar_items_vector
)->contents
[i
++] = Fcons (item
, Qnil
);
7164 XVECTOR (menu_bar_items_vector
)->contents
[i
++] = make_number (0);
7165 menu_bar_items_index
= i
;
7167 /* We did find an item for this KEY. Add ITEM to its list of maps. */
7171 old
= XVECTOR (menu_bar_items_vector
)->contents
[i
+ 2];
7172 /* If the new and the old items are not both keymaps,
7173 the lookup will only find `item'. */
7174 item
= Fcons (item
, KEYMAPP (item
) && KEYMAPP (XCAR (old
)) ? old
: Qnil
);
7175 XVECTOR (menu_bar_items_vector
)->contents
[i
+ 2] = item
;
7179 /* This is used as the handler when calling menu_item_eval_property. */
7181 menu_item_eval_property_1 (arg
)
7184 /* If we got a quit from within the menu computation,
7185 quit all the way out of it. This takes care of C-] in the debugger. */
7186 if (CONSP (arg
) && EQ (XCAR (arg
), Qquit
))
7187 Fsignal (Qquit
, Qnil
);
7192 /* Evaluate an expression and return the result (or nil if something
7193 went wrong). Used to evaluate dynamic parts of menu items. */
7195 menu_item_eval_property (sexpr
)
7198 int count
= SPECPDL_INDEX ();
7200 specbind (Qinhibit_redisplay
, Qt
);
7201 val
= internal_condition_case_1 (Feval
, sexpr
, Qerror
,
7202 menu_item_eval_property_1
);
7203 return unbind_to (count
, val
);
7206 /* This function parses a menu item and leaves the result in the
7207 vector item_properties.
7208 ITEM is a key binding, a possible menu item.
7209 If NOTREAL is nonzero, only check for equivalent key bindings, don't
7210 evaluate dynamic expressions in the menu item.
7211 INMENUBAR is > 0 when this is considered for an entry in a menu bar
7213 INMENUBAR is < 0 when this is considered for an entry in a keyboard menu.
7214 parse_menu_item returns true if the item is a menu item and false
7218 parse_menu_item (item
, notreal
, inmenubar
)
7220 int notreal
, inmenubar
;
7222 Lisp_Object def
, tem
, item_string
, start
;
7223 Lisp_Object cachelist
;
7225 Lisp_Object keyhint
;
7236 /* Create item_properties vector if necessary. */
7237 if (NILP (item_properties
))
7239 = Fmake_vector (make_number (ITEM_PROPERTY_ENABLE
+ 1), Qnil
);
7241 /* Initialize optional entries. */
7242 for (i
= ITEM_PROPERTY_DEF
; i
< ITEM_PROPERTY_ENABLE
; i
++)
7243 AREF (item_properties
, i
) = Qnil
;
7244 AREF (item_properties
, ITEM_PROPERTY_ENABLE
) = Qt
;
7246 /* Save the item here to protect it from GC. */
7247 AREF (item_properties
, ITEM_PROPERTY_ITEM
) = item
;
7249 item_string
= XCAR (item
);
7253 if (STRINGP (item_string
))
7255 /* Old format menu item. */
7256 AREF (item_properties
, ITEM_PROPERTY_NAME
) = item_string
;
7258 /* Maybe help string. */
7259 if (CONSP (item
) && STRINGP (XCAR (item
)))
7261 AREF (item_properties
, ITEM_PROPERTY_HELP
) = XCAR (item
);
7266 /* Maybe key binding cache. */
7267 if (CONSP (item
) && CONSP (XCAR (item
))
7268 && (NILP (XCAR (XCAR (item
)))
7269 || VECTORP (XCAR (XCAR (item
)))))
7271 cachelist
= XCAR (item
);
7275 /* This is the real definition--the function to run. */
7276 AREF (item_properties
, ITEM_PROPERTY_DEF
) = item
;
7278 /* Get enable property, if any. */
7281 tem
= Fget (item
, Qmenu_enable
);
7283 AREF (item_properties
, ITEM_PROPERTY_ENABLE
) = tem
;
7286 else if (EQ (item_string
, Qmenu_item
) && CONSP (item
))
7288 /* New format menu item. */
7289 AREF (item_properties
, ITEM_PROPERTY_NAME
) = XCAR (item
);
7290 start
= XCDR (item
);
7293 /* We have a real binding. */
7294 AREF (item_properties
, ITEM_PROPERTY_DEF
) = XCAR (start
);
7296 item
= XCDR (start
);
7297 /* Is there a cache list with key equivalences. */
7298 if (CONSP (item
) && CONSP (XCAR (item
)))
7300 cachelist
= XCAR (item
);
7304 /* Parse properties. */
7305 while (CONSP (item
) && CONSP (XCDR (item
)))
7310 if (EQ (tem
, QCenable
))
7311 AREF (item_properties
, ITEM_PROPERTY_ENABLE
) = XCAR (item
);
7312 else if (EQ (tem
, QCvisible
) && !notreal
)
7314 /* If got a visible property and that evaluates to nil
7315 then ignore this item. */
7316 tem
= menu_item_eval_property (XCAR (item
));
7320 else if (EQ (tem
, QChelp
))
7321 AREF (item_properties
, ITEM_PROPERTY_HELP
) = XCAR (item
);
7322 else if (EQ (tem
, QCfilter
))
7324 else if (EQ (tem
, QCkey_sequence
))
7327 if (NILP (cachelist
)
7328 && (SYMBOLP (tem
) || STRINGP (tem
) || VECTORP (tem
)))
7329 /* Be GC protected. Set keyhint to item instead of tem. */
7332 else if (EQ (tem
, QCkeys
))
7335 if (CONSP (tem
) || (STRINGP (tem
) && NILP (cachelist
)))
7336 AREF (item_properties
, ITEM_PROPERTY_KEYEQ
) = tem
;
7338 else if (EQ (tem
, QCbutton
) && CONSP (XCAR (item
)))
7343 if (EQ (type
, QCtoggle
) || EQ (type
, QCradio
))
7345 AREF (item_properties
, ITEM_PROPERTY_SELECTED
)
7347 AREF (item_properties
, ITEM_PROPERTY_TYPE
)
7354 else if (inmenubar
|| !NILP (start
))
7358 return 0; /* not a menu item */
7360 /* If item string is not a string, evaluate it to get string.
7361 If we don't get a string, skip this item. */
7362 item_string
= AREF (item_properties
, ITEM_PROPERTY_NAME
);
7363 if (!(STRINGP (item_string
) || notreal
))
7365 item_string
= menu_item_eval_property (item_string
);
7366 if (!STRINGP (item_string
))
7368 AREF (item_properties
, ITEM_PROPERTY_NAME
) = item_string
;
7371 /* If got a filter apply it on definition. */
7372 def
= AREF (item_properties
, ITEM_PROPERTY_DEF
);
7375 def
= menu_item_eval_property (list2 (XCAR (filter
),
7376 list2 (Qquote
, def
)));
7378 AREF (item_properties
, ITEM_PROPERTY_DEF
) = def
;
7381 /* Enable or disable selection of item. */
7382 tem
= AREF (item_properties
, ITEM_PROPERTY_ENABLE
);
7388 tem
= menu_item_eval_property (tem
);
7389 if (inmenubar
&& NILP (tem
))
7390 return 0; /* Ignore disabled items in menu bar. */
7391 AREF (item_properties
, ITEM_PROPERTY_ENABLE
) = tem
;
7394 /* If we got no definition, this item is just unselectable text which
7395 is OK in a submenu but not in the menubar. */
7397 return (inmenubar
? 0 : 1);
7399 /* See if this is a separate pane or a submenu. */
7400 def
= AREF (item_properties
, ITEM_PROPERTY_DEF
);
7401 tem
= get_keymap (def
, 0, 1);
7402 /* For a subkeymap, just record its details and exit. */
7405 AREF (item_properties
, ITEM_PROPERTY_MAP
) = tem
;
7406 AREF (item_properties
, ITEM_PROPERTY_DEF
) = tem
;
7410 /* At the top level in the menu bar, do likewise for commands also.
7411 The menu bar does not display equivalent key bindings anyway.
7412 ITEM_PROPERTY_DEF is already set up properly. */
7416 /* This is a command. See if there is an equivalent key binding. */
7417 if (NILP (cachelist
))
7419 /* We have to create a cachelist. */
7420 CHECK_IMPURE (start
);
7421 XSETCDR (start
, Fcons (Fcons (Qnil
, Qnil
), XCDR (start
)));
7422 cachelist
= XCAR (XCDR (start
));
7424 tem
= AREF (item_properties
, ITEM_PROPERTY_KEYEQ
);
7425 if (!NILP (keyhint
))
7427 XSETCAR (cachelist
, XCAR (keyhint
));
7430 else if (STRINGP (tem
))
7432 XSETCDR (cachelist
, Fsubstitute_command_keys (tem
));
7433 XSETCAR (cachelist
, Qt
);
7437 tem
= XCAR (cachelist
);
7444 tem
= Fkey_binding (tem
, Qnil
, Qnil
);
7446 prefix
= AREF (item_properties
, ITEM_PROPERTY_KEYEQ
);
7449 def
= XCAR (prefix
);
7450 prefix
= XCDR (prefix
);
7453 def
= AREF (item_properties
, ITEM_PROPERTY_DEF
);
7455 if (!update_menu_bindings
)
7457 else if (NILP (XCAR (cachelist
))) /* Have no saved key. */
7459 if (newcache
/* Always check first time. */
7460 /* Should we check everything when precomputing key
7462 /* If something had no key binding before, don't recheck it
7463 because that is too slow--except if we have a list of
7464 rebound commands in Vdefine_key_rebound_commands, do
7465 recheck any command that appears in that list. */
7466 || (CONSP (Vdefine_key_rebound_commands
)
7467 && !NILP (Fmemq (def
, Vdefine_key_rebound_commands
))))
7470 /* We had a saved key. Is it still bound to the command? */
7473 /* If the command is an alias for another
7474 (such as lmenu.el set it up), check if the
7475 original command matches the cached command. */
7476 && !(SYMBOLP (def
) && EQ (tem
, XSYMBOL (def
)->function
))))
7477 chkcache
= 1; /* Need to recompute key binding. */
7481 /* Recompute equivalent key binding. If the command is an alias
7482 for another (such as lmenu.el set it up), see if the original
7483 command name has equivalent keys. Otherwise look up the
7484 specified command itself. We don't try both, because that
7485 makes lmenu menus slow. */
7487 && SYMBOLP (XSYMBOL (def
)->function
)
7488 && ! NILP (Fget (def
, Qmenu_alias
)))
7489 def
= XSYMBOL (def
)->function
;
7490 tem
= Fwhere_is_internal (def
, Qnil
, Qt
, Qnil
, Qt
);
7491 XSETCAR (cachelist
, tem
);
7494 XSETCDR (cachelist
, Qnil
);
7498 else if (!NILP (keyhint
) && !NILP (XCAR (cachelist
)))
7500 tem
= XCAR (cachelist
);
7504 newcache
= chkcache
;
7507 tem
= Fkey_description (tem
, Qnil
);
7510 if (STRINGP (XCAR (prefix
)))
7511 tem
= concat2 (XCAR (prefix
), tem
);
7512 if (STRINGP (XCDR (prefix
)))
7513 tem
= concat2 (tem
, XCDR (prefix
));
7515 XSETCDR (cachelist
, tem
);
7519 tem
= XCDR (cachelist
);
7520 if (newcache
&& !NILP (tem
))
7522 tem
= concat3 (build_string (" ("), tem
, build_string (")"));
7523 XSETCDR (cachelist
, tem
);
7526 /* If we only want to precompute equivalent key bindings, stop here. */
7530 /* If we have an equivalent key binding, use that. */
7531 AREF (item_properties
, ITEM_PROPERTY_KEYEQ
) = tem
;
7533 /* Include this when menu help is implemented.
7534 tem = XVECTOR (item_properties)->contents[ITEM_PROPERTY_HELP];
7535 if (!(NILP (tem) || STRINGP (tem)))
7537 tem = menu_item_eval_property (tem);
7540 XVECTOR (item_properties)->contents[ITEM_PROPERTY_HELP] = tem;
7544 /* Handle radio buttons or toggle boxes. */
7545 tem
= AREF (item_properties
, ITEM_PROPERTY_SELECTED
);
7547 AREF (item_properties
, ITEM_PROPERTY_SELECTED
)
7548 = menu_item_eval_property (tem
);
7555 /***********************************************************************
7557 ***********************************************************************/
7559 /* A vector holding tool bar items while they are parsed in function
7560 tool_bar_items. Each item occupies TOOL_BAR_ITEM_NSCLOTS elements
7563 static Lisp_Object tool_bar_items_vector
;
7565 /* A vector holding the result of parse_tool_bar_item. Layout is like
7566 the one for a single item in tool_bar_items_vector. */
7568 static Lisp_Object tool_bar_item_properties
;
7570 /* Next free index in tool_bar_items_vector. */
7572 static int ntool_bar_items
;
7574 /* The symbols `tool-bar', and `:image'. */
7576 extern Lisp_Object Qtool_bar
;
7577 Lisp_Object QCimage
;
7579 /* Function prototypes. */
7581 static void init_tool_bar_items
P_ ((Lisp_Object
));
7582 static void process_tool_bar_item
P_ ((Lisp_Object
, Lisp_Object
));
7583 static int parse_tool_bar_item
P_ ((Lisp_Object
, Lisp_Object
));
7584 static void append_tool_bar_item
P_ ((void));
7587 /* Return a vector of tool bar items for keymaps currently in effect.
7588 Reuse vector REUSE if non-nil. Return in *NITEMS the number of
7589 tool bar items found. */
7592 tool_bar_items (reuse
, nitems
)
7603 /* In order to build the menus, we need to call the keymap
7604 accessors. They all call QUIT. But this function is called
7605 during redisplay, during which a quit is fatal. So inhibit
7606 quitting while building the menus. We do this instead of
7607 specbind because (1) errors will clear it anyway and (2) this
7608 avoids risk of specpdl overflow. */
7609 oquit
= Vinhibit_quit
;
7612 /* Initialize tool_bar_items_vector and protect it from GC. */
7613 init_tool_bar_items (reuse
);
7615 /* Build list of keymaps in maps. Set nmaps to the number of maps
7618 /* Should overriding-terminal-local-map and overriding-local-map apply? */
7619 if (!NILP (Voverriding_local_map_menu_flag
))
7621 /* Yes, use them (if non-nil) as well as the global map. */
7622 maps
= (Lisp_Object
*) alloca (3 * sizeof (maps
[0]));
7624 if (!NILP (current_kboard
->Voverriding_terminal_local_map
))
7625 maps
[nmaps
++] = current_kboard
->Voverriding_terminal_local_map
;
7626 if (!NILP (Voverriding_local_map
))
7627 maps
[nmaps
++] = Voverriding_local_map
;
7631 /* No, so use major and minor mode keymaps and keymap property.
7632 Note that tool-bar bindings in the local-map and keymap
7633 properties may not work reliable, as they are only
7634 recognized when the tool-bar (or mode-line) is updated,
7635 which does not normally happen after every command. */
7638 nminor
= current_minor_maps (NULL
, &tmaps
);
7639 maps
= (Lisp_Object
*) alloca ((nminor
+ 3) * sizeof (maps
[0]));
7641 if (tem
= get_local_map (PT
, current_buffer
, Qkeymap
), !NILP (tem
))
7642 maps
[nmaps
++] = tem
;
7643 bcopy (tmaps
, (void *) (maps
+ nmaps
), nminor
* sizeof (maps
[0]));
7645 maps
[nmaps
++] = get_local_map (PT
, current_buffer
, Qlocal_map
);
7648 /* Add global keymap at the end. */
7649 maps
[nmaps
++] = current_global_map
;
7651 /* Process maps in reverse order and look up in each map the prefix
7653 for (i
= nmaps
- 1; i
>= 0; --i
)
7654 if (!NILP (maps
[i
]))
7658 keymap
= get_keymap (access_keymap (maps
[i
], Qtool_bar
, 1, 0, 1), 0, 1);
7663 /* KEYMAP is a list `(keymap (KEY . BINDING) ...)'. */
7664 for (tail
= keymap
; CONSP (tail
); tail
= XCDR (tail
))
7666 Lisp_Object keydef
= XCAR (tail
);
7668 process_tool_bar_item (XCAR (keydef
), XCDR (keydef
));
7673 Vinhibit_quit
= oquit
;
7674 *nitems
= ntool_bar_items
/ TOOL_BAR_ITEM_NSLOTS
;
7675 return tool_bar_items_vector
;
7679 /* Process the definition of KEY which is DEF. */
7682 process_tool_bar_item (key
, def
)
7683 Lisp_Object key
, def
;
7686 extern Lisp_Object Qundefined
;
7687 struct gcpro gcpro1
, gcpro2
;
7689 /* Protect KEY and DEF from GC because parse_tool_bar_item may call
7693 if (EQ (def
, Qundefined
))
7695 /* If a map has an explicit `undefined' as definition,
7696 discard any previously made item. */
7697 for (i
= 0; i
< ntool_bar_items
; i
+= TOOL_BAR_ITEM_NSLOTS
)
7699 Lisp_Object
*v
= XVECTOR (tool_bar_items_vector
)->contents
+ i
;
7701 if (EQ (key
, v
[TOOL_BAR_ITEM_KEY
]))
7703 if (ntool_bar_items
> i
+ TOOL_BAR_ITEM_NSLOTS
)
7704 bcopy (v
+ TOOL_BAR_ITEM_NSLOTS
, v
,
7705 ((ntool_bar_items
- i
- TOOL_BAR_ITEM_NSLOTS
)
7706 * sizeof (Lisp_Object
)));
7707 ntool_bar_items
-= TOOL_BAR_ITEM_NSLOTS
;
7712 else if (parse_tool_bar_item (key
, def
))
7713 /* Append a new tool bar item to tool_bar_items_vector. Accept
7714 more than one definition for the same key. */
7715 append_tool_bar_item ();
7721 /* Parse a tool bar item specification ITEM for key KEY and return the
7722 result in tool_bar_item_properties. Value is zero if ITEM is
7725 ITEM is a list `(menu-item CAPTION BINDING PROPS...)'.
7727 CAPTION is the caption of the item, If it's not a string, it is
7728 evaluated to get a string.
7730 BINDING is the tool bar item's binding. Tool-bar items with keymaps
7731 as binding are currently ignored.
7733 The following properties are recognized:
7737 FORM is evaluated and specifies whether the tool bar item is
7738 enabled or disabled.
7742 FORM is evaluated and specifies whether the tool bar item is visible.
7744 - `:filter FUNCTION'
7746 FUNCTION is invoked with one parameter `(quote BINDING)'. Its
7747 result is stored as the new binding.
7749 - `:button (TYPE SELECTED)'
7751 TYPE must be one of `:radio' or `:toggle'. SELECTED is evaluated
7752 and specifies whether the button is selected (pressed) or not.
7756 IMAGES is either a single image specification or a vector of four
7757 image specifications. See enum tool_bar_item_images.
7759 - `:help HELP-STRING'.
7761 Gives a help string to display for the tool bar item. */
7764 parse_tool_bar_item (key
, item
)
7765 Lisp_Object key
, item
;
7767 /* Access slot with index IDX of vector tool_bar_item_properties. */
7768 #define PROP(IDX) XVECTOR (tool_bar_item_properties)->contents[IDX]
7770 Lisp_Object filter
= Qnil
;
7771 Lisp_Object caption
;
7774 /* Defininition looks like `(menu-item CAPTION BINDING PROPS...)'.
7775 Rule out items that aren't lists, don't start with
7776 `menu-item' or whose rest following `tool-bar-item' is not a
7779 || !EQ (XCAR (item
), Qmenu_item
)
7780 || (item
= XCDR (item
),
7784 /* Create tool_bar_item_properties vector if necessary. Reset it to
7786 if (VECTORP (tool_bar_item_properties
))
7788 for (i
= 0; i
< TOOL_BAR_ITEM_NSLOTS
; ++i
)
7792 tool_bar_item_properties
7793 = Fmake_vector (make_number (TOOL_BAR_ITEM_NSLOTS
), Qnil
);
7796 PROP (TOOL_BAR_ITEM_KEY
) = key
;
7797 PROP (TOOL_BAR_ITEM_ENABLED_P
) = Qt
;
7799 /* Get the caption of the item. If the caption is not a string,
7800 evaluate it to get a string. If we don't get a string, skip this
7802 caption
= XCAR (item
);
7803 if (!STRINGP (caption
))
7805 caption
= menu_item_eval_property (caption
);
7806 if (!STRINGP (caption
))
7809 PROP (TOOL_BAR_ITEM_CAPTION
) = caption
;
7811 /* Give up if rest following the caption is not a list. */
7816 /* Store the binding. */
7817 PROP (TOOL_BAR_ITEM_BINDING
) = XCAR (item
);
7820 /* Ignore cached key binding, if any. */
7821 if (CONSP (item
) && CONSP (XCAR (item
)))
7824 /* Process the rest of the properties. */
7825 for (; CONSP (item
) && CONSP (XCDR (item
)); item
= XCDR (XCDR (item
)))
7827 Lisp_Object key
, value
;
7830 value
= XCAR (XCDR (item
));
7832 if (EQ (key
, QCenable
))
7833 /* `:enable FORM'. */
7834 PROP (TOOL_BAR_ITEM_ENABLED_P
) = value
;
7835 else if (EQ (key
, QCvisible
))
7837 /* `:visible FORM'. If got a visible property and that
7838 evaluates to nil then ignore this item. */
7839 if (NILP (menu_item_eval_property (value
)))
7842 else if (EQ (key
, QChelp
))
7843 /* `:help HELP-STRING'. */
7844 PROP (TOOL_BAR_ITEM_HELP
) = value
;
7845 else if (EQ (key
, QCfilter
))
7846 /* ':filter FORM'. */
7848 else if (EQ (key
, QCbutton
) && CONSP (value
))
7850 /* `:button (TYPE . SELECTED)'. */
7851 Lisp_Object type
, selected
;
7853 type
= XCAR (value
);
7854 selected
= XCDR (value
);
7855 if (EQ (type
, QCtoggle
) || EQ (type
, QCradio
))
7857 PROP (TOOL_BAR_ITEM_SELECTED_P
) = selected
;
7858 PROP (TOOL_BAR_ITEM_TYPE
) = type
;
7861 else if (EQ (key
, QCimage
)
7863 || (VECTORP (value
) && XVECTOR (value
)->size
== 4)))
7864 /* Value is either a single image specification or a vector
7865 of 4 such specifications for the different button states. */
7866 PROP (TOOL_BAR_ITEM_IMAGES
) = value
;
7869 /* If got a filter apply it on binding. */
7871 PROP (TOOL_BAR_ITEM_BINDING
)
7872 = menu_item_eval_property (list2 (filter
,
7874 PROP (TOOL_BAR_ITEM_BINDING
))));
7876 /* See if the binding is a keymap. Give up if it is. */
7877 if (CONSP (get_keymap (PROP (TOOL_BAR_ITEM_BINDING
), 0, 1)))
7880 /* Enable or disable selection of item. */
7881 if (!EQ (PROP (TOOL_BAR_ITEM_ENABLED_P
), Qt
))
7882 PROP (TOOL_BAR_ITEM_ENABLED_P
)
7883 = menu_item_eval_property (PROP (TOOL_BAR_ITEM_ENABLED_P
));
7885 /* Handle radio buttons or toggle boxes. */
7886 if (!NILP (PROP (TOOL_BAR_ITEM_SELECTED_P
)))
7887 PROP (TOOL_BAR_ITEM_SELECTED_P
)
7888 = menu_item_eval_property (PROP (TOOL_BAR_ITEM_SELECTED_P
));
7896 /* Initialize tool_bar_items_vector. REUSE, if non-nil, is a vector
7897 that can be reused. */
7900 init_tool_bar_items (reuse
)
7903 if (VECTORP (reuse
))
7904 tool_bar_items_vector
= reuse
;
7906 tool_bar_items_vector
= Fmake_vector (make_number (64), Qnil
);
7907 ntool_bar_items
= 0;
7911 /* Append parsed tool bar item properties from
7912 tool_bar_item_properties */
7915 append_tool_bar_item ()
7917 Lisp_Object
*to
, *from
;
7919 /* Enlarge tool_bar_items_vector if necessary. */
7920 if (ntool_bar_items
+ TOOL_BAR_ITEM_NSLOTS
7921 >= XVECTOR (tool_bar_items_vector
)->size
)
7923 Lisp_Object new_vector
;
7924 int old_size
= XVECTOR (tool_bar_items_vector
)->size
;
7926 new_vector
= Fmake_vector (make_number (2 * old_size
), Qnil
);
7927 bcopy (XVECTOR (tool_bar_items_vector
)->contents
,
7928 XVECTOR (new_vector
)->contents
,
7929 old_size
* sizeof (Lisp_Object
));
7930 tool_bar_items_vector
= new_vector
;
7933 /* Append entries from tool_bar_item_properties to the end of
7934 tool_bar_items_vector. */
7935 to
= XVECTOR (tool_bar_items_vector
)->contents
+ ntool_bar_items
;
7936 from
= XVECTOR (tool_bar_item_properties
)->contents
;
7937 bcopy (from
, to
, TOOL_BAR_ITEM_NSLOTS
* sizeof *to
);
7938 ntool_bar_items
+= TOOL_BAR_ITEM_NSLOTS
;
7945 /* Read a character using menus based on maps in the array MAPS.
7946 NMAPS is the length of MAPS. Return nil if there are no menus in the maps.
7947 Return t if we displayed a menu but the user rejected it.
7949 PREV_EVENT is the previous input event, or nil if we are reading
7950 the first event of a key sequence.
7952 If USED_MOUSE_MENU is non-null, then we set *USED_MOUSE_MENU to 1
7953 if we used a mouse menu to read the input, or zero otherwise. If
7954 USED_MOUSE_MENU is null, we don't dereference it.
7956 The prompting is done based on the prompt-string of the map
7957 and the strings associated with various map elements.
7959 This can be done with X menus or with menus put in the minibuf.
7960 These are done in different ways, depending on how the input will be read.
7961 Menus using X are done after auto-saving in read-char, getting the input
7962 event from Fx_popup_menu; menus using the minibuf use read_char recursively
7963 and do auto-saving in the inner call of read_char. */
7966 read_char_x_menu_prompt (nmaps
, maps
, prev_event
, used_mouse_menu
)
7969 Lisp_Object prev_event
;
7970 int *used_mouse_menu
;
7973 register Lisp_Object name
= Qnil
;
7975 if (used_mouse_menu
)
7976 *used_mouse_menu
= 0;
7978 /* Use local over global Menu maps */
7980 if (! menu_prompting
)
7983 /* Optionally disregard all but the global map. */
7984 if (inhibit_local_menu_bar_menus
)
7986 maps
+= (nmaps
- 1);
7990 /* Get the menu name from the first map that has one (a prompt string). */
7991 for (mapno
= 0; mapno
< nmaps
; mapno
++)
7993 name
= Fkeymap_prompt (maps
[mapno
]);
7998 /* If we don't have any menus, just read a character normally. */
7999 if (!STRINGP (name
))
8003 /* If we got to this point via a mouse click,
8004 use a real menu for mouse selection. */
8005 if (EVENT_HAS_PARAMETERS (prev_event
)
8006 && !EQ (XCAR (prev_event
), Qmenu_bar
)
8007 && !EQ (XCAR (prev_event
), Qtool_bar
))
8009 /* Display the menu and get the selection. */
8010 Lisp_Object
*realmaps
8011 = (Lisp_Object
*) alloca (nmaps
* sizeof (Lisp_Object
));
8015 /* Use the maps that are not nil. */
8016 for (mapno
= 0; mapno
< nmaps
; mapno
++)
8017 if (!NILP (maps
[mapno
]))
8018 realmaps
[nmaps1
++] = maps
[mapno
];
8020 value
= Fx_popup_menu (prev_event
, Flist (nmaps1
, realmaps
));
8025 record_menu_key (XCAR (value
));
8027 /* If we got multiple events, unread all but
8029 There is no way to prevent those unread events
8030 from showing up later in last_nonmenu_event.
8031 So turn symbol and integer events into lists,
8032 to indicate that they came from a mouse menu,
8033 so that when present in last_nonmenu_event
8034 they won't confuse things. */
8035 for (tem
= XCDR (value
); !NILP (tem
); tem
= XCDR (tem
))
8037 record_menu_key (XCAR (tem
));
8038 if (SYMBOLP (XCAR (tem
))
8039 || INTEGERP (XCAR (tem
)))
8040 XSETCAR (tem
, Fcons (XCAR (tem
), Qdisabled
));
8043 /* If we got more than one event, put all but the first
8044 onto this list to be read later.
8045 Return just the first event now. */
8046 Vunread_command_events
8047 = nconc2 (XCDR (value
), Vunread_command_events
);
8048 value
= XCAR (value
);
8050 else if (NILP (value
))
8052 if (used_mouse_menu
)
8053 *used_mouse_menu
= 1;
8056 #endif /* HAVE_MENUS */
8060 /* Buffer in use so far for the minibuf prompts for menu keymaps.
8061 We make this bigger when necessary, and never free it. */
8062 static char *read_char_minibuf_menu_text
;
8063 /* Size of that buffer. */
8064 static int read_char_minibuf_menu_width
;
8067 read_char_minibuf_menu_prompt (commandflag
, nmaps
, maps
)
8073 register Lisp_Object name
;
8075 /* FIXME: Use the minibuffer's frame width. */
8076 int width
= FRAME_COLS (SELECTED_FRAME ()) - 4;
8079 Lisp_Object rest
, vector
;
8085 if (! menu_prompting
)
8088 /* Make sure we have a big enough buffer for the menu text. */
8089 if (read_char_minibuf_menu_text
== 0)
8091 read_char_minibuf_menu_width
= width
+ 4;
8092 read_char_minibuf_menu_text
= (char *) xmalloc (width
+ 4);
8094 else if (width
+ 4 > read_char_minibuf_menu_width
)
8096 read_char_minibuf_menu_width
= width
+ 4;
8097 read_char_minibuf_menu_text
8098 = (char *) xrealloc (read_char_minibuf_menu_text
, width
+ 4);
8100 menu
= read_char_minibuf_menu_text
;
8102 /* Get the menu name from the first map that has one (a prompt string). */
8103 for (mapno
= 0; mapno
< nmaps
; mapno
++)
8105 name
= Fkeymap_prompt (maps
[mapno
]);
8110 /* If we don't have any menus, just read a character normally. */
8111 if (!STRINGP (name
))
8114 /* Prompt string always starts with map's prompt, and a space. */
8115 strcpy (menu
, SDATA (name
));
8116 nlength
= SBYTES (name
);
8117 menu
[nlength
++] = ':';
8118 menu
[nlength
++] = ' ';
8121 /* Start prompting at start of first map. */
8125 /* Present the documented bindings, a line at a time. */
8132 Lisp_Object orig_defn_macro
;
8134 /* Loop over elements of map. */
8139 /* If reached end of map, start at beginning of next map. */
8143 /* At end of last map, wrap around to first map if just starting,
8144 or end this line if already have something on it. */
8148 if (notfirst
|| nobindings
) break;
8153 /* Look at the next element of the map. */
8155 elt
= XVECTOR (vector
)->contents
[idx
];
8157 elt
= Fcar_safe (rest
);
8159 if (idx
< 0 && VECTORP (elt
))
8161 /* If we found a dense table in the keymap,
8162 advanced past it, but start scanning its contents. */
8163 rest
= Fcdr_safe (rest
);
8169 /* An ordinary element. */
8170 Lisp_Object event
, tem
;
8174 event
= Fcar_safe (elt
); /* alist */
8175 elt
= Fcdr_safe (elt
);
8179 XSETINT (event
, idx
); /* vector */
8182 /* Ignore the element if it has no prompt string. */
8183 if (INTEGERP (event
) && parse_menu_item (elt
, 0, -1))
8185 /* 1 if the char to type matches the string. */
8187 Lisp_Object upcased_event
, downcased_event
;
8188 Lisp_Object desc
= Qnil
;
8190 = XVECTOR (item_properties
)->contents
[ITEM_PROPERTY_NAME
];
8192 upcased_event
= Fupcase (event
);
8193 downcased_event
= Fdowncase (event
);
8194 char_matches
= (XINT (upcased_event
) == SREF (s
, 0)
8195 || XINT (downcased_event
) == SREF (s
, 0));
8197 desc
= Fsingle_key_description (event
, Qnil
);
8199 #if 0 /* It is redundant to list the equivalent key bindings because
8200 the prefix is what the user has already typed. */
8202 = XVECTOR (item_properties
)->contents
[ITEM_PROPERTY_KEYEQ
];
8204 /* Insert equivalent keybinding. */
8205 s
= concat2 (s
, tem
);
8208 = XVECTOR (item_properties
)->contents
[ITEM_PROPERTY_TYPE
];
8209 if (EQ (tem
, QCradio
) || EQ (tem
, QCtoggle
))
8211 /* Insert button prefix. */
8212 Lisp_Object selected
8213 = XVECTOR (item_properties
)->contents
[ITEM_PROPERTY_SELECTED
];
8214 if (EQ (tem
, QCradio
))
8215 tem
= build_string (NILP (selected
) ? "(*) " : "( ) ");
8217 tem
= build_string (NILP (selected
) ? "[X] " : "[ ] ");
8218 s
= concat2 (tem
, s
);
8222 /* If we have room for the prompt string, add it to this line.
8223 If this is the first on the line, always add it. */
8224 if ((SCHARS (s
) + i
+ 2
8225 + (char_matches
? 0 : SCHARS (desc
) + 3))
8231 /* Punctuate between strings. */
8234 strcpy (menu
+ i
, ", ");
8240 /* If the char to type doesn't match the string's
8241 first char, explicitly show what char to type. */
8244 /* Add as much of string as fits. */
8245 thiswidth
= SCHARS (desc
);
8246 if (thiswidth
+ i
> width
)
8247 thiswidth
= width
- i
;
8248 bcopy (SDATA (desc
), menu
+ i
, thiswidth
);
8250 strcpy (menu
+ i
, " = ");
8254 /* Add as much of string as fits. */
8255 thiswidth
= SCHARS (s
);
8256 if (thiswidth
+ i
> width
)
8257 thiswidth
= width
- i
;
8258 bcopy (SDATA (s
), menu
+ i
, thiswidth
);
8264 /* If this element does not fit, end the line now,
8265 and save the element for the next line. */
8266 strcpy (menu
+ i
, "...");
8271 /* Move past this element. */
8272 if (idx
>= 0 && idx
+ 1 >= XVECTOR (vector
)->size
)
8273 /* Handle reaching end of dense table. */
8278 rest
= Fcdr_safe (rest
);
8282 /* Prompt with that and read response. */
8283 message2_nolog (menu
, strlen (menu
),
8284 ! NILP (current_buffer
->enable_multibyte_characters
));
8286 /* Make believe its not a keyboard macro in case the help char
8287 is pressed. Help characters are not recorded because menu prompting
8288 is not used on replay.
8290 orig_defn_macro
= current_kboard
->defining_kbd_macro
;
8291 current_kboard
->defining_kbd_macro
= Qnil
;
8293 obj
= read_char (commandflag
, 0, 0, Qt
, 0);
8294 while (BUFFERP (obj
));
8295 current_kboard
->defining_kbd_macro
= orig_defn_macro
;
8297 if (!INTEGERP (obj
))
8302 if (! EQ (obj
, menu_prompt_more_char
)
8303 && (!INTEGERP (menu_prompt_more_char
)
8304 || ! EQ (obj
, make_number (Ctl (XINT (menu_prompt_more_char
))))))
8306 if (!NILP (current_kboard
->defining_kbd_macro
))
8307 store_kbd_macro_char (obj
);
8310 /* Help char - go round again */
8314 /* Reading key sequences. */
8316 /* Follow KEY in the maps in CURRENT[0..NMAPS-1], placing its bindings
8317 in DEFS[0..NMAPS-1]. Set NEXT[i] to DEFS[i] if DEFS[i] is a
8318 keymap, or nil otherwise. Return the index of the first keymap in
8319 which KEY has any binding, or NMAPS if no map has a binding.
8321 If KEY is a meta ASCII character, treat it like meta-prefix-char
8322 followed by the corresponding non-meta character. Keymaps in
8323 CURRENT with non-prefix bindings for meta-prefix-char become nil in
8326 If KEY has no bindings in any of the CURRENT maps, NEXT is left
8329 NEXT may be the same array as CURRENT. */
8332 follow_key (key
, nmaps
, current
, defs
, next
)
8334 Lisp_Object
*current
, *defs
, *next
;
8337 int i
, first_binding
;
8339 first_binding
= nmaps
;
8340 for (i
= nmaps
- 1; i
>= 0; i
--)
8342 if (! NILP (current
[i
]))
8344 defs
[i
] = access_keymap (current
[i
], key
, 1, 0, 1);
8345 if (! NILP (defs
[i
]))
8352 /* Given the set of bindings we've found, produce the next set of maps. */
8353 if (first_binding
< nmaps
)
8354 for (i
= 0; i
< nmaps
; i
++)
8355 next
[i
] = NILP (defs
[i
]) ? Qnil
: get_keymap (defs
[i
], 0, 1);
8357 return first_binding
;
8360 /* Structure used to keep track of partial application of key remapping
8361 such as Vfunction_key_map and Vkey_translation_map. */
8362 typedef struct keyremap
8364 Lisp_Object map
, parent
;
8368 /* Lookup KEY in MAP.
8369 MAP is a keymap mapping keys to key vectors or functions.
8370 If the mapping is a function and DO_FUNCTION is non-zero, then
8371 the function is called with PROMPT as parameter and its return
8372 value is used as the return value of this function (after checking
8373 that it is indeed a vector). */
8376 access_keymap_keyremap (map
, key
, prompt
, do_funcall
)
8377 Lisp_Object map
, key
, prompt
;
8382 next
= access_keymap (map
, key
, 1, 0, 1);
8384 /* Handle symbol with autoload definition. */
8385 if (SYMBOLP (next
) && !NILP (Ffboundp (next
))
8386 && CONSP (XSYMBOL (next
)->function
)
8387 && EQ (XCAR (XSYMBOL (next
)->function
), Qautoload
))
8388 do_autoload (XSYMBOL (next
)->function
, next
);
8390 /* Handle a symbol whose function definition is a keymap
8392 if (SYMBOLP (next
) && !NILP (Ffboundp (next
))
8393 && (!NILP (Farrayp (XSYMBOL (next
)->function
))
8394 || KEYMAPP (XSYMBOL (next
)->function
)))
8395 next
= XSYMBOL (next
)->function
;
8397 /* If the keymap gives a function, not an
8398 array, then call the function with one arg and use
8399 its value instead. */
8400 if (SYMBOLP (next
) && !NILP (Ffboundp (next
)) && do_funcall
)
8405 next
= call1 (next
, prompt
);
8406 /* If the function returned something invalid,
8407 barf--don't ignore it.
8408 (To ignore it safely, we would need to gcpro a bunch of
8409 other variables.) */
8410 if (! (VECTORP (next
) || STRINGP (next
)))
8411 error ("Function %s returns invalid key sequence", tem
);
8416 /* Do one step of the key remapping used for function-key-map and
8417 key-translation-map:
8418 KEYBUF is the buffer holding the input events.
8419 BUFSIZE is its maximum size.
8420 FKEY is a pointer to the keyremap structure to use.
8421 INPUT is the index of the last element in KEYBUF.
8422 DOIT if non-zero says that the remapping can actually take place.
8423 DIFF is used to return the number of keys added/removed by the remapping.
8424 PARENT is the root of the keymap.
8425 PROMPT is the prompt to use if the remapping happens through a function.
8426 The return value is non-zero if the remapping actually took place. */
8429 keyremap_step (keybuf
, bufsize
, fkey
, input
, doit
, diff
, prompt
)
8430 Lisp_Object
*keybuf
, prompt
;
8432 int input
, doit
, *diff
, bufsize
;
8434 Lisp_Object next
, key
;
8436 key
= keybuf
[fkey
->end
++];
8437 next
= access_keymap_keyremap (fkey
->map
, key
, prompt
, doit
);
8439 /* If keybuf[fkey->start..fkey->end] is bound in the
8440 map and we're in a position to do the key remapping, replace it with
8441 the binding and restart with fkey->start at the end. */
8442 if ((VECTORP (next
) || STRINGP (next
)) && doit
)
8444 int len
= XFASTINT (Flength (next
));
8447 *diff
= len
- (fkey
->end
- fkey
->start
);
8449 if (input
+ *diff
>= bufsize
)
8450 error ("Key sequence too long");
8452 /* Shift the keys that follow fkey->end. */
8454 for (i
= fkey
->end
; i
< input
; i
++)
8455 keybuf
[i
+ *diff
] = keybuf
[i
];
8457 for (i
= input
- 1; i
>= fkey
->end
; i
--)
8458 keybuf
[i
+ *diff
] = keybuf
[i
];
8459 /* Overwrite the old keys with the new ones. */
8460 for (i
= 0; i
< len
; i
++)
8461 keybuf
[fkey
->start
+ i
]
8462 = Faref (next
, make_number (i
));
8464 fkey
->start
= fkey
->end
+= *diff
;
8465 fkey
->map
= fkey
->parent
;
8470 fkey
->map
= get_keymap (next
, 0, 1);
8472 /* If we no longer have a bound suffix, try a new position for
8474 if (!CONSP (fkey
->map
))
8476 fkey
->end
= ++fkey
->start
;
8477 fkey
->map
= fkey
->parent
;
8482 /* Read a sequence of keys that ends with a non prefix character,
8483 storing it in KEYBUF, a buffer of size BUFSIZE.
8485 Return the length of the key sequence stored.
8486 Return -1 if the user rejected a command menu.
8488 Echo starting immediately unless `prompt' is 0.
8490 Where a key sequence ends depends on the currently active keymaps.
8491 These include any minor mode keymaps active in the current buffer,
8492 the current buffer's local map, and the global map.
8494 If a key sequence has no other bindings, we check Vfunction_key_map
8495 to see if some trailing subsequence might be the beginning of a
8496 function key's sequence. If so, we try to read the whole function
8497 key, and substitute its symbolic name into the key sequence.
8499 We ignore unbound `down-' mouse clicks. We turn unbound `drag-' and
8500 `double-' events into similar click events, if that would make them
8501 bound. We try to turn `triple-' events first into `double-' events,
8504 If we get a mouse click in a mode line, vertical divider, or other
8505 non-text area, we treat the click as if it were prefixed by the
8506 symbol denoting that area - `mode-line', `vertical-line', or
8509 If the sequence starts with a mouse click, we read the key sequence
8510 with respect to the buffer clicked on, not the current buffer.
8512 If the user switches frames in the midst of a key sequence, we put
8513 off the switch-frame event until later; the next call to
8514 read_char will return it.
8516 If FIX_CURRENT_BUFFER is nonzero, we restore current_buffer
8517 from the selected window's buffer. */
8520 read_key_sequence (keybuf
, bufsize
, prompt
, dont_downcase_last
,
8521 can_return_switch_frame
, fix_current_buffer
)
8522 Lisp_Object
*keybuf
;
8525 int dont_downcase_last
;
8526 int can_return_switch_frame
;
8527 int fix_current_buffer
;
8529 volatile Lisp_Object from_string
;
8530 volatile int count
= SPECPDL_INDEX ();
8532 /* How many keys there are in the current key sequence. */
8535 /* The length of the echo buffer when we started reading, and
8536 the length of this_command_keys when we started reading. */
8537 volatile int echo_start
;
8538 volatile int keys_start
;
8540 /* The number of keymaps we're scanning right now, and the number of
8541 keymaps we have allocated space for. */
8543 volatile int nmaps_allocated
= 0;
8545 /* defs[0..nmaps-1] are the definitions of KEYBUF[0..t-1] in
8546 the current keymaps. */
8547 Lisp_Object
*volatile defs
= NULL
;
8549 /* submaps[0..nmaps-1] are the prefix definitions of KEYBUF[0..t-1]
8550 in the current keymaps, or nil where it is not a prefix. */
8551 Lisp_Object
*volatile submaps
= NULL
;
8553 /* The local map to start out with at start of key sequence. */
8554 volatile Lisp_Object orig_local_map
;
8556 /* The map from the `keymap' property to start out with at start of
8558 volatile Lisp_Object orig_keymap
;
8560 /* 1 if we have already considered switching to the local-map property
8561 of the place where a mouse click occurred. */
8562 volatile int localized_local_map
= 0;
8564 /* The index in defs[] of the first keymap that has a binding for
8565 this key sequence. In other words, the lowest i such that
8566 defs[i] is non-nil. */
8567 volatile int first_binding
;
8568 /* Index of the first key that has no binding.
8569 It is useless to try fkey.start larger than that. */
8570 volatile int first_unbound
;
8572 /* If t < mock_input, then KEYBUF[t] should be read as the next
8575 We use this to recover after recognizing a function key. Once we
8576 realize that a suffix of the current key sequence is actually a
8577 function key's escape sequence, we replace the suffix with the
8578 function key's binding from Vfunction_key_map. Now keybuf
8579 contains a new and different key sequence, so the echo area,
8580 this_command_keys, and the submaps and defs arrays are wrong. In
8581 this situation, we set mock_input to t, set t to 0, and jump to
8582 restart_sequence; the loop will read keys from keybuf up until
8583 mock_input, thus rebuilding the state; and then it will resume
8584 reading characters from the keyboard. */
8585 volatile int mock_input
= 0;
8587 /* If the sequence is unbound in submaps[], then
8588 keybuf[fkey.start..fkey.end-1] is a prefix in Vfunction_key_map,
8589 and fkey.map is its binding.
8591 These might be > t, indicating that all function key scanning
8592 should hold off until t reaches them. We do this when we've just
8593 recognized a function key, to avoid searching for the function
8594 key's again in Vfunction_key_map. */
8595 volatile keyremap fkey
;
8597 /* Likewise, for key_translation_map. */
8598 volatile keyremap keytran
;
8600 /* If we receive a `switch-frame' or `select-window' event in the middle of
8601 a key sequence, we put it off for later.
8602 While we're reading, we keep the event here. */
8603 volatile Lisp_Object delayed_switch_frame
;
8605 /* See the comment below... */
8606 #if defined (GOBBLE_FIRST_EVENT)
8607 Lisp_Object first_event
;
8610 volatile Lisp_Object original_uppercase
;
8611 volatile int original_uppercase_position
= -1;
8613 /* Gets around Microsoft compiler limitations. */
8616 struct buffer
*starting_buffer
;
8618 /* List of events for which a fake prefix key has been generated. */
8619 volatile Lisp_Object fake_prefixed_keys
= Qnil
;
8621 #if defined (GOBBLE_FIRST_EVENT)
8625 struct gcpro gcpro1
;
8627 GCPRO1 (fake_prefixed_keys
);
8628 raw_keybuf_count
= 0;
8630 last_nonmenu_event
= Qnil
;
8632 delayed_switch_frame
= Qnil
;
8633 fkey
.map
= fkey
.parent
= Vfunction_key_map
;
8634 keytran
.map
= keytran
.parent
= Vkey_translation_map
;
8635 /* If there is no translation-map, turn off scanning. */
8636 fkey
.start
= fkey
.end
= KEYMAPP (fkey
.map
) ? 0 : bufsize
+ 1;
8637 keytran
.start
= keytran
.end
= KEYMAPP (keytran
.map
) ? 0 : bufsize
+ 1;
8642 echo_prompt (prompt
);
8643 else if (cursor_in_echo_area
8644 && (FLOATP (Vecho_keystrokes
) || INTEGERP (Vecho_keystrokes
))
8645 && NILP (Fzerop (Vecho_keystrokes
)))
8646 /* This doesn't put in a dash if the echo buffer is empty, so
8647 you don't always see a dash hanging out in the minibuffer. */
8651 /* Record the initial state of the echo area and this_command_keys;
8652 we will need to restore them if we replay a key sequence. */
8654 echo_start
= echo_length ();
8655 keys_start
= this_command_key_count
;
8656 this_single_command_key_start
= keys_start
;
8658 #if defined (GOBBLE_FIRST_EVENT)
8659 /* This doesn't quite work, because some of the things that read_char
8660 does cannot safely be bypassed. It seems too risky to try to make
8663 /* Read the first char of the sequence specially, before setting
8664 up any keymaps, in case a filter runs and switches buffers on us. */
8665 first_event
= read_char (NILP (prompt
), 0, submaps
, last_nonmenu_event
,
8667 #endif /* GOBBLE_FIRST_EVENT */
8669 orig_local_map
= get_local_map (PT
, current_buffer
, Qlocal_map
);
8670 orig_keymap
= get_local_map (PT
, current_buffer
, Qkeymap
);
8673 /* We jump here when the key sequence has been thoroughly changed, and
8674 we need to rescan it starting from the beginning. When we jump here,
8675 keybuf[0..mock_input] holds the sequence we should reread. */
8678 starting_buffer
= current_buffer
;
8679 first_unbound
= bufsize
+ 1;
8681 /* Build our list of keymaps.
8682 If we recognize a function key and replace its escape sequence in
8683 keybuf with its symbol, or if the sequence starts with a mouse
8684 click and we need to switch buffers, we jump back here to rebuild
8685 the initial keymaps from the current buffer. */
8688 if (!NILP (current_kboard
->Voverriding_terminal_local_map
)
8689 || !NILP (Voverriding_local_map
))
8691 if (3 > nmaps_allocated
)
8693 submaps
= (Lisp_Object
*) alloca (3 * sizeof (submaps
[0]));
8694 defs
= (Lisp_Object
*) alloca (3 * sizeof (defs
[0]));
8695 nmaps_allocated
= 3;
8697 if (!NILP (current_kboard
->Voverriding_terminal_local_map
))
8698 submaps
[nmaps
++] = current_kboard
->Voverriding_terminal_local_map
;
8699 if (!NILP (Voverriding_local_map
))
8700 submaps
[nmaps
++] = Voverriding_local_map
;
8708 nminor
= current_minor_maps (0, &maps
);
8709 total
= nminor
+ (!NILP (orig_keymap
) ? 3 : 2);
8711 if (total
> nmaps_allocated
)
8713 submaps
= (Lisp_Object
*) alloca (total
* sizeof (submaps
[0]));
8714 defs
= (Lisp_Object
*) alloca (total
* sizeof (defs
[0]));
8715 nmaps_allocated
= total
;
8718 if (!NILP (orig_keymap
))
8719 submaps
[nmaps
++] = orig_keymap
;
8721 bcopy (maps
, (void *) (submaps
+ nmaps
),
8722 nminor
* sizeof (submaps
[0]));
8726 submaps
[nmaps
++] = orig_local_map
;
8728 submaps
[nmaps
++] = current_global_map
;
8730 /* Find an accurate initial value for first_binding. */
8731 for (first_binding
= 0; first_binding
< nmaps
; first_binding
++)
8732 if (! NILP (submaps
[first_binding
]))
8735 /* Start from the beginning in keybuf. */
8738 /* These are no-ops the first time through, but if we restart, they
8739 revert the echo area and this_command_keys to their original state. */
8740 this_command_key_count
= keys_start
;
8741 if (INTERACTIVE
&& t
< mock_input
)
8742 echo_truncate (echo_start
);
8744 /* If the best binding for the current key sequence is a keymap, or
8745 we may be looking at a function key's escape sequence, keep on
8747 while (first_binding
< nmaps
8748 /* Keep reading as long as there's a prefix binding. */
8749 ? !NILP (submaps
[first_binding
])
8750 /* Don't return in the middle of a possible function key sequence,
8751 if the only bindings we found were via case conversion.
8752 Thus, if ESC O a has a function-key-map translation
8753 and ESC o has a binding, don't return after ESC O,
8754 so that we can translate ESC O plus the next character. */
8755 : (fkey
.start
< t
|| keytran
.start
< t
))
8758 int used_mouse_menu
= 0;
8760 /* Where the last real key started. If we need to throw away a
8761 key that has expanded into more than one element of keybuf
8762 (say, a mouse click on the mode line which is being treated
8763 as [mode-line (mouse-...)], then we backtrack to this point
8765 volatile int last_real_key_start
;
8767 /* These variables are analogous to echo_start and keys_start;
8768 while those allow us to restart the entire key sequence,
8769 echo_local_start and keys_local_start allow us to throw away
8771 volatile int echo_local_start
, keys_local_start
, local_first_binding
;
8773 eassert (fkey
.end
== t
|| (fkey
.end
> t
&& fkey
.end
<= mock_input
));
8774 eassert (fkey
.start
<= fkey
.end
);
8775 eassert (keytran
.start
<= keytran
.end
);
8776 /* key-translation-map is applied *after* function-key-map. */
8777 eassert (keytran
.end
<= fkey
.start
);
8779 if (first_unbound
< fkey
.start
&& first_unbound
< keytran
.start
)
8780 { /* The prefix upto first_unbound has no binding and has
8781 no translation left to do either, so we know it's unbound.
8782 If we don't stop now, we risk staying here indefinitely
8783 (if the user keeps entering fkey or keytran prefixes
8784 like C-c ESC ESC ESC ESC ...) */
8786 for (i
= first_unbound
+ 1; i
< t
; i
++)
8787 keybuf
[i
- first_unbound
- 1] = keybuf
[i
];
8788 mock_input
= t
- first_unbound
- 1;
8789 fkey
.end
= fkey
.start
-= first_unbound
+ 1;
8790 fkey
.map
= fkey
.parent
;
8791 keytran
.end
= keytran
.start
-= first_unbound
+ 1;
8792 keytran
.map
= keytran
.parent
;
8793 goto replay_sequence
;
8797 error ("Key sequence too long");
8800 echo_local_start
= echo_length ();
8801 keys_local_start
= this_command_key_count
;
8802 local_first_binding
= first_binding
;
8805 /* These are no-ops, unless we throw away a keystroke below and
8806 jumped back up to replay_key; in that case, these restore the
8807 variables to their original state, allowing us to replay the
8809 if (INTERACTIVE
&& t
< mock_input
)
8810 echo_truncate (echo_local_start
);
8811 this_command_key_count
= keys_local_start
;
8812 first_binding
= local_first_binding
;
8814 /* By default, assume each event is "real". */
8815 last_real_key_start
= t
;
8817 /* Does mock_input indicate that we are re-reading a key sequence? */
8821 add_command_key (key
);
8822 if ((FLOATP (Vecho_keystrokes
) || INTEGERP (Vecho_keystrokes
))
8823 && NILP (Fzerop (Vecho_keystrokes
)))
8827 /* If not, we should actually read a character. */
8832 KBOARD
*interrupted_kboard
= current_kboard
;
8833 struct frame
*interrupted_frame
= SELECTED_FRAME ();
8834 if (setjmp (wrong_kboard_jmpbuf
))
8836 if (!NILP (delayed_switch_frame
))
8838 interrupted_kboard
->kbd_queue
8839 = Fcons (delayed_switch_frame
,
8840 interrupted_kboard
->kbd_queue
);
8841 delayed_switch_frame
= Qnil
;
8844 interrupted_kboard
->kbd_queue
8845 = Fcons (keybuf
[--t
], interrupted_kboard
->kbd_queue
);
8847 /* If the side queue is non-empty, ensure it begins with a
8848 switch-frame, so we'll replay it in the right context. */
8849 if (CONSP (interrupted_kboard
->kbd_queue
)
8850 && (key
= XCAR (interrupted_kboard
->kbd_queue
),
8851 !(EVENT_HAS_PARAMETERS (key
)
8852 && EQ (EVENT_HEAD_KIND (EVENT_HEAD (key
)),
8856 XSETFRAME (frame
, interrupted_frame
);
8857 interrupted_kboard
->kbd_queue
8858 = Fcons (make_lispy_switch_frame (frame
),
8859 interrupted_kboard
->kbd_queue
);
8862 orig_local_map
= get_local_map (PT
, current_buffer
, Qlocal_map
);
8863 orig_keymap
= get_local_map (PT
, current_buffer
, Qkeymap
);
8864 goto replay_sequence
;
8867 key
= read_char (NILP (prompt
), nmaps
,
8868 (Lisp_Object
*) submaps
, last_nonmenu_event
,
8872 /* read_char returns t when it shows a menu and the user rejects it.
8876 unbind_to (count
, Qnil
);
8881 /* read_char returns -1 at the end of a macro.
8882 Emacs 18 handles this by returning immediately with a
8883 zero, so that's what we'll do. */
8884 if (INTEGERP (key
) && XINT (key
) == -1)
8887 /* The Microsoft C compiler can't handle the goto that
8893 /* If the current buffer has been changed from under us, the
8894 keymap may have changed, so replay the sequence. */
8897 timer_resume_idle ();
8900 /* Reset the current buffer from the selected window
8901 in case something changed the former and not the latter.
8902 This is to be more consistent with the behavior
8903 of the command_loop_1. */
8904 if (fix_current_buffer
)
8906 if (! FRAME_LIVE_P (XFRAME (selected_frame
)))
8908 if (XBUFFER (XWINDOW (selected_window
)->buffer
) != current_buffer
)
8909 Fset_buffer (XWINDOW (selected_window
)->buffer
);
8912 orig_local_map
= get_local_map (PT
, current_buffer
, Qlocal_map
);
8913 orig_keymap
= get_local_map (PT
, current_buffer
, Qkeymap
);
8914 goto replay_sequence
;
8917 /* If we have a quit that was typed in another frame, and
8918 quit_throw_to_read_char switched buffers,
8919 replay to get the right keymap. */
8921 && XINT (key
) == quit_char
8922 && current_buffer
!= starting_buffer
)
8925 XVECTOR (raw_keybuf
)->contents
[raw_keybuf_count
++] = key
;
8929 orig_local_map
= get_local_map (PT
, current_buffer
, Qlocal_map
);
8930 orig_keymap
= get_local_map (PT
, current_buffer
, Qkeymap
);
8931 goto replay_sequence
;
8936 if (EVENT_HAS_PARAMETERS (key
)
8937 /* Either a `switch-frame' or a `select-window' event. */
8938 && EQ (EVENT_HEAD_KIND (EVENT_HEAD (key
)), Qswitch_frame
))
8940 /* If we're at the beginning of a key sequence, and the caller
8941 says it's okay, go ahead and return this event. If we're
8942 in the midst of a key sequence, delay it until the end. */
8943 if (t
> 0 || !can_return_switch_frame
)
8945 delayed_switch_frame
= key
;
8951 XVECTOR (raw_keybuf
)->contents
[raw_keybuf_count
++] = key
;
8954 /* Clicks in non-text areas get prefixed by the symbol
8955 in their CHAR-ADDRESS field. For example, a click on
8956 the mode line is prefixed by the symbol `mode-line'.
8958 Furthermore, key sequences beginning with mouse clicks
8959 are read using the keymaps of the buffer clicked on, not
8960 the current buffer. So we may have to switch the buffer
8963 When we turn one event into two events, we must make sure
8964 that neither of the two looks like the original--so that,
8965 if we replay the events, they won't be expanded again.
8966 If not for this, such reexpansion could happen either here
8967 or when user programs play with this-command-keys. */
8968 if (EVENT_HAS_PARAMETERS (key
))
8973 kind
= EVENT_HEAD_KIND (EVENT_HEAD (key
));
8974 if (EQ (kind
, Qmouse_click
))
8976 Lisp_Object window
, posn
;
8978 window
= POSN_WINDOW (EVENT_START (key
));
8979 posn
= POSN_POSN (EVENT_START (key
));
8982 || (!NILP (fake_prefixed_keys
)
8983 && !NILP (Fmemq (key
, fake_prefixed_keys
))))
8985 /* We're looking a second time at an event for which
8986 we generated a fake prefix key. Set
8987 last_real_key_start appropriately. */
8989 last_real_key_start
= t
- 1;
8992 /* Key sequences beginning with mouse clicks are
8993 read using the keymaps in the buffer clicked on,
8994 not the current buffer. If we're at the
8995 beginning of a key sequence, switch buffers. */
8996 if (last_real_key_start
== 0
8998 && BUFFERP (XWINDOW (window
)->buffer
)
8999 && XBUFFER (XWINDOW (window
)->buffer
) != current_buffer
)
9001 XVECTOR (raw_keybuf
)->contents
[raw_keybuf_count
++] = key
;
9005 /* Arrange to go back to the original buffer once we're
9006 done reading the key sequence. Note that we can't
9007 use save_excursion_{save,restore} here, because they
9008 save point as well as the current buffer; we don't
9009 want to save point, because redisplay may change it,
9010 to accommodate a Fset_window_start or something. We
9011 don't want to do this at the top of the function,
9012 because we may get input from a subprocess which
9013 wants to change the selected window and stuff (say,
9015 record_unwind_protect (Fset_buffer
, Fcurrent_buffer ());
9017 if (! FRAME_LIVE_P (XFRAME (selected_frame
)))
9019 set_buffer_internal (XBUFFER (XWINDOW (window
)->buffer
));
9020 orig_local_map
= get_local_map (PT
, current_buffer
,
9022 orig_keymap
= get_local_map (PT
, current_buffer
, Qkeymap
);
9023 goto replay_sequence
;
9026 /* For a mouse click, get the local text-property keymap
9027 of the place clicked on, rather than point. */
9028 if (last_real_key_start
== 0
9029 && CONSP (XCDR (key
))
9030 && ! localized_local_map
)
9032 Lisp_Object map_here
, start
, pos
;
9034 localized_local_map
= 1;
9035 start
= EVENT_START (key
);
9037 if (CONSP (start
) && POSN_INBUFFER_P (start
))
9039 pos
= POSN_BUFFER_POSN (start
);
9041 && XINT (pos
) >= BEG
&& XINT (pos
) <= Z
)
9043 map_here
= get_local_map (XINT (pos
),
9044 current_buffer
, Qlocal_map
);
9045 if (!EQ (map_here
, orig_local_map
))
9047 orig_local_map
= map_here
;
9051 goto replay_sequence
;
9053 map_here
= get_local_map (XINT (pos
),
9054 current_buffer
, Qkeymap
);
9055 if (!EQ (map_here
, orig_keymap
))
9057 orig_keymap
= map_here
;
9061 goto replay_sequence
;
9067 /* Expand mode-line and scroll-bar events into two events:
9068 use posn as a fake prefix key. */
9070 && (NILP (fake_prefixed_keys
)
9071 || NILP (Fmemq (key
, fake_prefixed_keys
))))
9073 if (t
+ 1 >= bufsize
)
9074 error ("Key sequence too long");
9077 keybuf
[t
+ 1] = key
;
9080 /* Record that a fake prefix key has been generated
9081 for KEY. Don't modify the event; this would
9082 prevent proper action when the event is pushed
9083 back into unread-command-events. */
9084 fake_prefixed_keys
= Fcons (key
, fake_prefixed_keys
);
9086 /* If on a mode line string with a local keymap,
9087 reconsider the key sequence with that keymap. */
9088 if (string
= POSN_STRING (EVENT_START (key
)),
9089 (CONSP (string
) && STRINGP (XCAR (string
))))
9091 Lisp_Object pos
, map
, map2
;
9093 pos
= XCDR (string
);
9094 string
= XCAR (string
);
9096 && XINT (pos
) < SCHARS (string
))
9098 map
= Fget_text_property (pos
, Qlocal_map
, string
);
9100 orig_local_map
= map
;
9101 map2
= Fget_text_property (pos
, Qkeymap
, string
);
9104 if (!NILP (map
) || !NILP (map2
))
9105 goto replay_sequence
;
9111 else if (NILP (from_string
)
9112 && (string
= POSN_STRING (EVENT_START (key
)),
9113 (CONSP (string
) && STRINGP (XCAR (string
)))))
9115 /* For a click on a string, i.e. overlay string or a
9116 string displayed via the `display' property,
9117 consider `local-map' and `keymap' properties of
9119 Lisp_Object pos
, map
, map2
;
9121 pos
= XCDR (string
);
9122 string
= XCAR (string
);
9124 && XINT (pos
) < SCHARS (string
))
9126 map
= Fget_text_property (pos
, Qlocal_map
, string
);
9128 orig_local_map
= map
;
9129 map2
= Fget_text_property (pos
, Qkeymap
, string
);
9133 if (!NILP (map
) || !NILP (map2
))
9135 from_string
= string
;
9136 goto replay_sequence
;
9141 else if (CONSP (XCDR (key
))
9142 && CONSP (EVENT_START (key
))
9143 && CONSP (XCDR (EVENT_START (key
))))
9147 posn
= POSN_POSN (EVENT_START (key
));
9148 /* Handle menu-bar events:
9149 insert the dummy prefix event `menu-bar'. */
9150 if (EQ (posn
, Qmenu_bar
) || EQ (posn
, Qtool_bar
))
9152 if (t
+ 1 >= bufsize
)
9153 error ("Key sequence too long");
9157 /* Zap the position in key, so we know that we've
9158 expanded it, and don't try to do so again. */
9159 POSN_SET_POSN (EVENT_START (key
),
9160 Fcons (posn
, Qnil
));
9163 goto replay_sequence
;
9165 else if (CONSP (posn
))
9167 /* We're looking at the second event of a
9168 sequence which we expanded before. Set
9169 last_real_key_start appropriately. */
9170 if (last_real_key_start
== t
&& t
> 0)
9171 last_real_key_start
= t
- 1;
9176 /* We have finally decided that KEY is something we might want
9178 first_binding
= (follow_key (key
,
9179 nmaps
- first_binding
,
9180 submaps
+ first_binding
,
9181 defs
+ first_binding
,
9182 submaps
+ first_binding
)
9185 /* If KEY wasn't bound, we'll try some fallbacks. */
9186 if (first_binding
< nmaps
)
9187 /* This is needed for the following scenario:
9188 event 0: a down-event that gets dropped by calling replay_key.
9189 event 1: some normal prefix like C-h.
9190 After event 0, first_unbound is 0, after event 1 fkey.start
9191 and keytran.start are both 1, so when we see that C-h is bound,
9192 we need to update first_unbound. */
9193 first_unbound
= max (t
+ 1, first_unbound
);
9198 /* Remember the position to put an upper bound on fkey.start. */
9199 first_unbound
= min (t
, first_unbound
);
9201 head
= EVENT_HEAD (key
);
9202 if (help_char_p (head
) && t
> 0)
9204 read_key_sequence_cmd
= Vprefix_help_command
;
9206 last_nonmenu_event
= key
;
9207 /* The Microsoft C compiler can't handle the goto that
9215 Lisp_Object breakdown
;
9218 breakdown
= parse_modifiers (head
);
9219 modifiers
= XINT (XCAR (XCDR (breakdown
)));
9220 /* Attempt to reduce an unbound mouse event to a simpler
9221 event that is bound:
9222 Drags reduce to clicks.
9223 Double-clicks reduce to clicks.
9224 Triple-clicks reduce to double-clicks, then to clicks.
9225 Down-clicks are eliminated.
9226 Double-downs reduce to downs, then are eliminated.
9227 Triple-downs reduce to double-downs, then to downs,
9228 then are eliminated. */
9229 if (modifiers
& (down_modifier
| drag_modifier
9230 | double_modifier
| triple_modifier
))
9232 while (modifiers
& (down_modifier
| drag_modifier
9233 | double_modifier
| triple_modifier
))
9235 Lisp_Object new_head
, new_click
;
9236 if (modifiers
& triple_modifier
)
9237 modifiers
^= (double_modifier
| triple_modifier
);
9238 else if (modifiers
& double_modifier
)
9239 modifiers
&= ~double_modifier
;
9240 else if (modifiers
& drag_modifier
)
9241 modifiers
&= ~drag_modifier
;
9244 /* Dispose of this `down' event by simply jumping
9245 back to replay_key, to get another event.
9247 Note that if this event came from mock input,
9248 then just jumping back to replay_key will just
9249 hand it to us again. So we have to wipe out any
9252 We could delete keybuf[t] and shift everything
9253 after that to the left by one spot, but we'd also
9254 have to fix up any variable that points into
9255 keybuf, and shifting isn't really necessary
9258 Adding prefixes for non-textual mouse clicks
9259 creates two characters of mock input, and both
9260 must be thrown away. If we're only looking at
9261 the prefix now, we can just jump back to
9262 replay_key. On the other hand, if we've already
9263 processed the prefix, and now the actual click
9264 itself is giving us trouble, then we've lost the
9265 state of the keymaps we want to backtrack to, and
9266 we need to replay the whole sequence to rebuild
9269 Beyond that, only function key expansion could
9270 create more than two keys, but that should never
9271 generate mouse events, so it's okay to zero
9272 mock_input in that case too.
9274 FIXME: The above paragraph seems just plain
9275 wrong, if you consider things like
9276 xterm-mouse-mode. -stef
9278 Isn't this just the most wonderful code ever? */
9280 /* If mock_input > t + 1, the above simplification
9281 will actually end up dropping keys on the floor.
9282 This is probably OK for now, but even
9283 if mock_input <= t + 1, we need to adjust fkey
9285 Typical case [header-line down-mouse-N]:
9286 mock_input = 2, t = 1, fkey.end = 1,
9287 last_real_key_start = 0. */
9288 if (fkey
.end
> last_real_key_start
)
9290 fkey
.end
= fkey
.start
9291 = min (last_real_key_start
, fkey
.start
);
9292 fkey
.map
= fkey
.parent
;
9293 if (keytran
.end
> last_real_key_start
)
9295 keytran
.end
= keytran
.start
9296 = min (last_real_key_start
, keytran
.start
);
9297 keytran
.map
= keytran
.parent
;
9300 if (t
== last_real_key_start
)
9307 mock_input
= last_real_key_start
;
9308 goto replay_sequence
;
9313 = apply_modifiers (modifiers
, XCAR (breakdown
));
9315 = Fcons (new_head
, Fcons (EVENT_START (key
), Qnil
));
9317 /* Look for a binding for this new key. follow_key
9318 promises that it didn't munge submaps the
9319 last time we called it, since key was unbound. */
9321 = (follow_key (new_click
,
9322 nmaps
- local_first_binding
,
9323 submaps
+ local_first_binding
,
9324 defs
+ local_first_binding
,
9325 submaps
+ local_first_binding
)
9326 + local_first_binding
);
9328 /* If that click is bound, go for it. */
9329 if (first_binding
< nmaps
)
9334 /* Otherwise, we'll leave key set to the drag event. */
9341 /* Normally, last_nonmenu_event gets the previous key we read.
9342 But when a mouse popup menu is being used,
9343 we don't update last_nonmenu_event; it continues to hold the mouse
9344 event that preceded the first level of menu. */
9345 if (!used_mouse_menu
)
9346 last_nonmenu_event
= key
;
9348 /* Record what part of this_command_keys is the current key sequence. */
9349 this_single_command_key_start
= this_command_key_count
- t
;
9351 if (first_binding
< nmaps
&& NILP (submaps
[first_binding
]))
9352 /* There is a binding and it's not a prefix.
9353 There is thus no function-key in this sequence.
9354 Moving fkey.start is important in this case to allow keytran.start
9355 to go over the sequence before we return (since we keep the
9356 invariant that keytran.end <= fkey.start). */
9359 (fkey
.start
= fkey
.end
= t
, fkey
.map
= fkey
.parent
);
9362 /* If the sequence is unbound, see if we can hang a function key
9363 off the end of it. */
9364 /* Continue scan from fkey.end until we find a bound suffix. */
9365 while (fkey
.end
< t
)
9367 struct gcpro gcpro1
, gcpro2
, gcpro3
;
9370 GCPRO3 (fkey
.map
, keytran
.map
, delayed_switch_frame
);
9371 done
= keyremap_step (keybuf
, bufsize
, &fkey
,
9372 max (t
, mock_input
),
9373 /* If there's a binding (i.e.
9374 first_binding >= nmaps) we don't want
9375 to apply this function-key-mapping. */
9376 fkey
.end
+ 1 == t
&& first_binding
>= nmaps
,
9381 mock_input
= diff
+ max (t
, mock_input
);
9382 goto replay_sequence
;
9386 /* Look for this sequence in key-translation-map.
9387 Scan from keytran.end until we find a bound suffix. */
9388 while (keytran
.end
< fkey
.start
)
9390 struct gcpro gcpro1
, gcpro2
, gcpro3
;
9393 GCPRO3 (fkey
.map
, keytran
.map
, delayed_switch_frame
);
9394 done
= keyremap_step (keybuf
, bufsize
, &keytran
, max (t
, mock_input
),
9399 mock_input
= diff
+ max (t
, mock_input
);
9400 /* Adjust the function-key-map counters. */
9404 goto replay_sequence
;
9408 /* If KEY is not defined in any of the keymaps,
9409 and cannot be part of a function key or translation,
9410 and is an upper case letter
9411 use the corresponding lower-case letter instead. */
9412 if (first_binding
>= nmaps
9413 && fkey
.start
>= t
&& keytran
.start
>= t
9415 && ((((XINT (key
) & 0x3ffff)
9416 < XCHAR_TABLE (current_buffer
->downcase_table
)->size
)
9417 && UPPERCASEP (XINT (key
) & 0x3ffff))
9418 || (XINT (key
) & shift_modifier
)))
9420 Lisp_Object new_key
;
9422 original_uppercase
= key
;
9423 original_uppercase_position
= t
- 1;
9425 if (XINT (key
) & shift_modifier
)
9426 XSETINT (new_key
, XINT (key
) & ~shift_modifier
);
9428 XSETINT (new_key
, (DOWNCASE (XINT (key
) & 0x3ffff)
9429 | (XINT (key
) & ~0x3ffff)));
9431 /* We have to do this unconditionally, regardless of whether
9432 the lower-case char is defined in the keymaps, because they
9433 might get translated through function-key-map. */
9434 keybuf
[t
- 1] = new_key
;
9435 mock_input
= max (t
, mock_input
);
9437 goto replay_sequence
;
9439 /* If KEY is not defined in any of the keymaps,
9440 and cannot be part of a function key or translation,
9441 and is a shifted function key,
9442 use the corresponding unshifted function key instead. */
9443 if (first_binding
>= nmaps
9444 && fkey
.start
>= t
&& keytran
.start
>= t
9447 Lisp_Object breakdown
;
9450 breakdown
= parse_modifiers (key
);
9451 modifiers
= XINT (XCAR (XCDR (breakdown
)));
9452 if (modifiers
& shift_modifier
)
9454 Lisp_Object new_key
;
9456 original_uppercase
= key
;
9457 original_uppercase_position
= t
- 1;
9459 modifiers
&= ~shift_modifier
;
9460 new_key
= apply_modifiers (modifiers
,
9463 keybuf
[t
- 1] = new_key
;
9464 mock_input
= max (t
, mock_input
);
9465 fkey
.start
= fkey
.end
= KEYMAPP (fkey
.map
) ? 0 : bufsize
+ 1;
9466 keytran
.start
= keytran
.end
= KEYMAPP (keytran
.map
) ? 0 : bufsize
+ 1;
9468 goto replay_sequence
;
9474 read_key_sequence_cmd
= (first_binding
< nmaps
9475 ? defs
[first_binding
]
9478 unread_switch_frame
= delayed_switch_frame
;
9479 unbind_to (count
, Qnil
);
9481 /* Don't downcase the last character if the caller says don't.
9482 Don't downcase it if the result is undefined, either. */
9483 if ((dont_downcase_last
|| first_binding
>= nmaps
)
9484 && t
- 1 == original_uppercase_position
)
9485 keybuf
[t
- 1] = original_uppercase
;
9487 /* Occasionally we fabricate events, perhaps by expanding something
9488 according to function-key-map, or by adding a prefix symbol to a
9489 mouse click in the scroll bar or modeline. In this cases, return
9490 the entire generated key sequence, even if we hit an unbound
9491 prefix or a definition before the end. This means that you will
9492 be able to push back the event properly, and also means that
9493 read-key-sequence will always return a logical unit.
9496 for (; t
< mock_input
; t
++)
9498 if ((FLOATP (Vecho_keystrokes
) || INTEGERP (Vecho_keystrokes
))
9499 && NILP (Fzerop (Vecho_keystrokes
)))
9500 echo_char (keybuf
[t
]);
9501 add_command_key (keybuf
[t
]);
9510 DEFUN ("read-key-sequence", Fread_key_sequence
, Sread_key_sequence
, 1, 5, 0,
9511 doc
: /* Read a sequence of keystrokes and return as a string or vector.
9512 The sequence is sufficient to specify a non-prefix command in the
9513 current local and global maps.
9515 First arg PROMPT is a prompt string. If nil, do not prompt specially.
9516 Second (optional) arg CONTINUE-ECHO, if non-nil, means this key echos
9517 as a continuation of the previous key.
9519 The third (optional) arg DONT-DOWNCASE-LAST, if non-nil, means do not
9520 convert the last event to lower case. (Normally any upper case event
9521 is converted to lower case if the original event is undefined and the lower
9522 case equivalent is defined.) A non-nil value is appropriate for reading
9523 a key sequence to be defined.
9525 A C-g typed while in this function is treated like any other character,
9526 and `quit-flag' is not set.
9528 If the key sequence starts with a mouse click, then the sequence is read
9529 using the keymaps of the buffer of the window clicked in, not the buffer
9530 of the selected window as normal.
9532 `read-key-sequence' drops unbound button-down events, since you normally
9533 only care about the click or drag events which follow them. If a drag
9534 or multi-click event is unbound, but the corresponding click event would
9535 be bound, `read-key-sequence' turns the event into a click event at the
9536 drag's starting position. This means that you don't have to distinguish
9537 between click and drag, double, or triple events unless you want to.
9539 `read-key-sequence' prefixes mouse events on mode lines, the vertical
9540 lines separating windows, and scroll bars with imaginary keys
9541 `mode-line', `vertical-line', and `vertical-scroll-bar'.
9543 Optional fourth argument CAN-RETURN-SWITCH-FRAME non-nil means that this
9544 function will process a switch-frame event if the user switches frames
9545 before typing anything. If the user switches frames in the middle of a
9546 key sequence, or at the start of the sequence but CAN-RETURN-SWITCH-FRAME
9547 is nil, then the event will be put off until after the current key sequence.
9549 `read-key-sequence' checks `function-key-map' for function key
9550 sequences, where they wouldn't conflict with ordinary bindings. See
9551 `function-key-map' for more details.
9553 The optional fifth argument COMMAND-LOOP, if non-nil, means
9554 that this key sequence is being read by something that will
9555 read commands one after another. It should be nil if the caller
9556 will read just one key sequence. */)
9557 (prompt
, continue_echo
, dont_downcase_last
, can_return_switch_frame
,
9559 Lisp_Object prompt
, continue_echo
, dont_downcase_last
;
9560 Lisp_Object can_return_switch_frame
, command_loop
;
9562 Lisp_Object keybuf
[30];
9564 struct gcpro gcpro1
;
9565 int count
= SPECPDL_INDEX ();
9568 CHECK_STRING (prompt
);
9571 specbind (Qinput_method_exit_on_first_char
,
9572 (NILP (command_loop
) ? Qt
: Qnil
));
9573 specbind (Qinput_method_use_echo_area
,
9574 (NILP (command_loop
) ? Qt
: Qnil
));
9576 bzero (keybuf
, sizeof keybuf
);
9578 gcpro1
.nvars
= (sizeof keybuf
/sizeof (keybuf
[0]));
9580 if (NILP (continue_echo
))
9582 this_command_key_count
= 0;
9583 this_command_key_count_reset
= 0;
9584 this_single_command_key_start
= 0;
9587 #ifdef HAVE_X_WINDOWS
9588 if (display_hourglass_p
)
9589 cancel_hourglass ();
9592 i
= read_key_sequence (keybuf
, (sizeof keybuf
/sizeof (keybuf
[0])),
9593 prompt
, ! NILP (dont_downcase_last
),
9594 ! NILP (can_return_switch_frame
), 0);
9596 #if 0 /* The following is fine for code reading a key sequence and
9597 then proceeding with a lenghty computation, but it's not good
9598 for code reading keys in a loop, like an input method. */
9599 #ifdef HAVE_X_WINDOWS
9600 if (display_hourglass_p
)
9611 return unbind_to (count
, make_event_array (i
, keybuf
));
9614 DEFUN ("read-key-sequence-vector", Fread_key_sequence_vector
,
9615 Sread_key_sequence_vector
, 1, 5, 0,
9616 doc
: /* Like `read-key-sequence' but always return a vector. */)
9617 (prompt
, continue_echo
, dont_downcase_last
, can_return_switch_frame
,
9619 Lisp_Object prompt
, continue_echo
, dont_downcase_last
;
9620 Lisp_Object can_return_switch_frame
, command_loop
;
9622 Lisp_Object keybuf
[30];
9624 struct gcpro gcpro1
;
9625 int count
= SPECPDL_INDEX ();
9628 CHECK_STRING (prompt
);
9631 specbind (Qinput_method_exit_on_first_char
,
9632 (NILP (command_loop
) ? Qt
: Qnil
));
9633 specbind (Qinput_method_use_echo_area
,
9634 (NILP (command_loop
) ? Qt
: Qnil
));
9636 bzero (keybuf
, sizeof keybuf
);
9638 gcpro1
.nvars
= (sizeof keybuf
/sizeof (keybuf
[0]));
9640 if (NILP (continue_echo
))
9642 this_command_key_count
= 0;
9643 this_command_key_count_reset
= 0;
9644 this_single_command_key_start
= 0;
9647 #ifdef HAVE_X_WINDOWS
9648 if (display_hourglass_p
)
9649 cancel_hourglass ();
9652 i
= read_key_sequence (keybuf
, (sizeof keybuf
/sizeof (keybuf
[0])),
9653 prompt
, ! NILP (dont_downcase_last
),
9654 ! NILP (can_return_switch_frame
), 0);
9656 #ifdef HAVE_X_WINDOWS
9657 if (display_hourglass_p
)
9667 return unbind_to (count
, Fvector (i
, keybuf
));
9670 DEFUN ("command-execute", Fcommand_execute
, Scommand_execute
, 1, 4, 0,
9671 doc
: /* Execute CMD as an editor command.
9672 CMD must be a symbol that satisfies the `commandp' predicate.
9673 Optional second arg RECORD-FLAG non-nil
9674 means unconditionally put this command in `command-history'.
9675 Otherwise, that is done only if an arg is read using the minibuffer.
9676 The argument KEYS specifies the value to use instead of (this-command-keys)
9677 when reading the arguments; if it is nil, (this-command-keys) is used.
9678 The argument SPECIAL, if non-nil, means that this command is executing
9679 a special event, so ignore the prefix argument and don't clear it. */)
9680 (cmd
, record_flag
, keys
, special
)
9681 Lisp_Object cmd
, record_flag
, keys
, special
;
9683 register Lisp_Object final
;
9684 register Lisp_Object tem
;
9685 Lisp_Object prefixarg
;
9686 struct backtrace backtrace
;
9687 extern int debug_on_next_call
;
9689 debug_on_next_call
= 0;
9693 prefixarg
= current_kboard
->Vprefix_arg
;
9694 Vcurrent_prefix_arg
= prefixarg
;
9695 current_kboard
->Vprefix_arg
= Qnil
;
9702 tem
= Fget (cmd
, Qdisabled
);
9703 if (!NILP (tem
) && !NILP (Vrun_hooks
))
9705 tem
= Fsymbol_value (Qdisabled_command_function
);
9707 return call1 (Vrun_hooks
, Qdisabled_command_function
);
9713 final
= Findirect_function (cmd
);
9715 if (CONSP (final
) && (tem
= Fcar (final
), EQ (tem
, Qautoload
)))
9717 struct gcpro gcpro1
, gcpro2
;
9719 GCPRO2 (cmd
, prefixarg
);
9720 do_autoload (final
, cmd
);
9727 if (STRINGP (final
) || VECTORP (final
))
9729 /* If requested, place the macro in the command history. For
9730 other sorts of commands, call-interactively takes care of
9732 if (!NILP (record_flag
))
9735 = Fcons (Fcons (Qexecute_kbd_macro
,
9736 Fcons (final
, Fcons (prefixarg
, Qnil
))),
9739 /* Don't keep command history around forever. */
9740 if (NUMBERP (Vhistory_length
) && XINT (Vhistory_length
) > 0)
9742 tem
= Fnthcdr (Vhistory_length
, Vcommand_history
);
9744 XSETCDR (tem
, Qnil
);
9748 return Fexecute_kbd_macro (final
, prefixarg
, Qnil
);
9751 if (CONSP (final
) || SUBRP (final
) || COMPILEDP (final
))
9753 backtrace
.next
= backtrace_list
;
9754 backtrace_list
= &backtrace
;
9755 backtrace
.function
= &Qcall_interactively
;
9756 backtrace
.args
= &cmd
;
9757 backtrace
.nargs
= 1;
9758 backtrace
.evalargs
= 0;
9759 backtrace
.debug_on_exit
= 0;
9761 tem
= Fcall_interactively (cmd
, record_flag
, keys
);
9763 backtrace_list
= backtrace
.next
;
9771 DEFUN ("execute-extended-command", Fexecute_extended_command
, Sexecute_extended_command
,
9773 doc
: /* Read function name, then read its arguments and call it. */)
9775 Lisp_Object prefixarg
;
9777 Lisp_Object function
;
9779 int saved_last_point_position
;
9780 Lisp_Object saved_keys
, saved_last_point_position_buffer
;
9781 Lisp_Object bindings
, value
;
9782 struct gcpro gcpro1
, gcpro2
, gcpro3
;
9784 saved_keys
= Fvector (this_command_key_count
,
9785 XVECTOR (this_command_keys
)->contents
);
9786 saved_last_point_position_buffer
= last_point_position_buffer
;
9787 saved_last_point_position
= last_point_position
;
9789 GCPRO3 (saved_keys
, prefixarg
, saved_last_point_position_buffer
);
9791 if (EQ (prefixarg
, Qminus
))
9793 else if (CONSP (prefixarg
) && XINT (XCAR (prefixarg
)) == 4)
9794 strcpy (buf
, "C-u ");
9795 else if (CONSP (prefixarg
) && INTEGERP (XCAR (prefixarg
)))
9796 sprintf (buf
, "%ld ", (long) XINT (XCAR (prefixarg
)));
9797 else if (INTEGERP (prefixarg
))
9798 sprintf (buf
, "%ld ", (long) XINT (prefixarg
));
9800 /* This isn't strictly correct if execute-extended-command
9801 is bound to anything else. Perhaps it should use
9802 this_command_keys? */
9803 strcat (buf
, "M-x ");
9805 /* Prompt with buf, and then read a string, completing from and
9806 restricting to the set of all defined commands. Don't provide
9807 any initial input. Save the command read on the extended-command
9809 function
= Fcompleting_read (build_string (buf
),
9810 Vobarray
, Qcommandp
,
9811 Qt
, Qnil
, Qextended_command_history
, Qnil
,
9814 if (STRINGP (function
) && SCHARS (function
) == 0)
9815 error ("No command name given");
9817 /* Set this_command_keys to the concatenation of saved_keys and
9818 function, followed by a RET. */
9823 this_command_key_count
= 0;
9824 this_command_key_count_reset
= 0;
9825 this_single_command_key_start
= 0;
9827 keys
= XVECTOR (saved_keys
)->contents
;
9828 for (i
= 0; i
< XVECTOR (saved_keys
)->size
; i
++)
9829 add_command_key (keys
[i
]);
9831 for (i
= 0; i
< SCHARS (function
); i
++)
9832 add_command_key (Faref (function
, make_number (i
)));
9834 add_command_key (make_number ('\015'));
9837 last_point_position
= saved_last_point_position
;
9838 last_point_position_buffer
= saved_last_point_position_buffer
;
9842 function
= Fintern (function
, Qnil
);
9843 current_kboard
->Vprefix_arg
= prefixarg
;
9844 Vthis_command
= function
;
9845 real_this_command
= function
;
9847 /* If enabled, show which key runs this command. */
9848 if (!NILP (Vsuggest_key_bindings
)
9849 && NILP (Vexecuting_macro
)
9850 && SYMBOLP (function
))
9851 bindings
= Fwhere_is_internal (function
, Voverriding_local_map
,
9857 GCPRO2 (bindings
, value
);
9858 value
= Fcommand_execute (function
, Qt
, Qnil
, Qnil
);
9860 /* If the command has a key binding, print it now. */
9861 if (!NILP (bindings
)
9862 && ! (VECTORP (bindings
) && EQ (Faref (bindings
, make_number (0)),
9865 /* But first wait, and skip the message if there is input. */
9867 if (!NILP (echo_area_buffer
[0]))
9868 /* This command displayed something in the echo area;
9869 so wait a few seconds, then display our suggestion message. */
9870 delay_time
= (NUMBERP (Vsuggest_key_bindings
)
9871 ? XINT (Vsuggest_key_bindings
) : 2);
9873 /* This command left the echo area empty,
9874 so display our message immediately. */
9877 if (!NILP (Fsit_for (make_number (delay_time
), Qnil
, Qnil
))
9878 && ! CONSP (Vunread_command_events
))
9880 Lisp_Object binding
;
9882 int message_p
= push_message ();
9883 int count
= SPECPDL_INDEX ();
9885 record_unwind_protect (pop_message_unwind
, Qnil
);
9886 binding
= Fkey_description (bindings
, Qnil
);
9889 = (char *) alloca (SCHARS (SYMBOL_NAME (function
))
9892 sprintf (newmessage
, "You can run the command `%s' with %s",
9893 SDATA (SYMBOL_NAME (function
)),
9895 message2_nolog (newmessage
,
9896 strlen (newmessage
),
9897 STRING_MULTIBYTE (binding
));
9898 if (!NILP (Fsit_for ((NUMBERP (Vsuggest_key_bindings
)
9899 ? Vsuggest_key_bindings
: make_number (2)),
9904 unbind_to (count
, Qnil
);
9908 RETURN_UNGCPRO (value
);
9912 /* Return nonzero if input events are pending. */
9915 detect_input_pending ()
9918 get_input_pending (&input_pending
, 0);
9920 return input_pending
;
9923 /* Return nonzero if input events other than mouse movements are
9927 detect_input_pending_ignore_squeezables ()
9930 get_input_pending (&input_pending
, READABLE_EVENTS_IGNORE_SQUEEZABLES
);
9932 return input_pending
;
9935 /* Return nonzero if input events are pending, and run any pending timers. */
9938 detect_input_pending_run_timers (do_display
)
9941 int old_timers_run
= timers_run
;
9944 get_input_pending (&input_pending
, READABLE_EVENTS_DO_TIMERS_NOW
);
9946 if (old_timers_run
!= timers_run
&& do_display
)
9948 redisplay_preserve_echo_area (8);
9949 /* The following fixes a bug when using lazy-lock with
9950 lazy-lock-defer-on-the-fly set to t, i.e. when fontifying
9951 from an idle timer function. The symptom of the bug is that
9952 the cursor sometimes doesn't become visible until the next X
9953 event is processed. --gerd. */
9955 Lisp_Object tail
, frame
;
9956 FOR_EACH_FRAME (tail
, frame
)
9957 if (FRAME_RIF (XFRAME (frame
)))
9958 FRAME_RIF (XFRAME (frame
))->flush_display (XFRAME (frame
));
9962 return input_pending
;
9965 /* This is called in some cases before a possible quit.
9966 It cases the next call to detect_input_pending to recompute input_pending.
9967 So calling this function unnecessarily can't do any harm. */
9970 clear_input_pending ()
9975 /* Return nonzero if there are pending requeued events.
9976 This isn't used yet. The hope is to make wait_reading_process_output
9977 call it, and return if it runs Lisp code that unreads something.
9978 The problem is, kbd_buffer_get_event needs to be fixed to know what
9979 to do in that case. It isn't trivial. */
9982 requeued_events_pending_p ()
9984 return (!NILP (Vunread_command_events
) || unread_command_char
!= -1);
9988 DEFUN ("input-pending-p", Finput_pending_p
, Sinput_pending_p
, 0, 0, 0,
9989 doc
: /* Return t if command input is currently available with no wait.
9990 Actually, the value is nil only if we can be sure that no input is available;
9991 if there is a doubt, the value is t. */)
9994 if (!NILP (Vunread_command_events
) || unread_command_char
!= -1)
9997 get_input_pending (&input_pending
,
9998 READABLE_EVENTS_DO_TIMERS_NOW
9999 | READABLE_EVENTS_FILTER_EVENTS
);
10000 return input_pending
> 0 ? Qt
: Qnil
;
10003 DEFUN ("recent-keys", Frecent_keys
, Srecent_keys
, 0, 0, 0,
10004 doc
: /* Return vector of last 100 events, not counting those from keyboard macros. */)
10007 Lisp_Object
*keys
= XVECTOR (recent_keys
)->contents
;
10010 if (total_keys
< NUM_RECENT_KEYS
)
10011 return Fvector (total_keys
, keys
);
10014 val
= Fvector (NUM_RECENT_KEYS
, keys
);
10015 bcopy (keys
+ recent_keys_index
,
10016 XVECTOR (val
)->contents
,
10017 (NUM_RECENT_KEYS
- recent_keys_index
) * sizeof (Lisp_Object
));
10019 XVECTOR (val
)->contents
+ NUM_RECENT_KEYS
- recent_keys_index
,
10020 recent_keys_index
* sizeof (Lisp_Object
));
10025 DEFUN ("this-command-keys", Fthis_command_keys
, Sthis_command_keys
, 0, 0, 0,
10026 doc
: /* Return the key sequence that invoked this command.
10027 However, if the command has called `read-key-sequence', it returns
10028 the last key sequence that has been read.
10029 The value is a string or a vector. */)
10032 return make_event_array (this_command_key_count
,
10033 XVECTOR (this_command_keys
)->contents
);
10036 DEFUN ("this-command-keys-vector", Fthis_command_keys_vector
, Sthis_command_keys_vector
, 0, 0, 0,
10037 doc
: /* Return the key sequence that invoked this command, as a vector.
10038 However, if the command has called `read-key-sequence', it returns
10039 the last key sequence that has been read. */)
10042 return Fvector (this_command_key_count
,
10043 XVECTOR (this_command_keys
)->contents
);
10046 DEFUN ("this-single-command-keys", Fthis_single_command_keys
,
10047 Sthis_single_command_keys
, 0, 0, 0,
10048 doc
: /* Return the key sequence that invoked this command.
10049 More generally, it returns the last key sequence read, either by
10050 the command loop or by `read-key-sequence'.
10051 Unlike `this-command-keys', this function's value
10052 does not include prefix arguments.
10053 The value is always a vector. */)
10056 return Fvector (this_command_key_count
10057 - this_single_command_key_start
,
10058 (XVECTOR (this_command_keys
)->contents
10059 + this_single_command_key_start
));
10062 DEFUN ("this-single-command-raw-keys", Fthis_single_command_raw_keys
,
10063 Sthis_single_command_raw_keys
, 0, 0, 0,
10064 doc
: /* Return the raw events that were read for this command.
10065 More generally, it returns the last key sequence read, either by
10066 the command loop or by `read-key-sequence'.
10067 Unlike `this-single-command-keys', this function's value
10068 shows the events before all translations (except for input methods).
10069 The value is always a vector. */)
10072 return Fvector (raw_keybuf_count
,
10073 (XVECTOR (raw_keybuf
)->contents
));
10076 DEFUN ("reset-this-command-lengths", Freset_this_command_lengths
,
10077 Sreset_this_command_lengths
, 0, 0, 0,
10078 doc
: /* Make the unread events replace the last command and echo.
10079 Used in `universal-argument-other-key'.
10081 `universal-argument-other-key' rereads the event just typed.
10082 It then gets translated through `function-key-map'.
10083 The translated event has to replace the real events,
10084 both in the value of (this-command-keys) and in echoing.
10085 To achieve this, `universal-argument-other-key' calls
10086 `reset-this-command-lengths', which discards the record of reading
10087 these events the first time. */)
10090 this_command_key_count
= before_command_key_count
;
10091 if (this_command_key_count
< this_single_command_key_start
)
10092 this_single_command_key_start
= this_command_key_count
;
10094 echo_truncate (before_command_echo_length
);
10096 /* Cause whatever we put into unread-command-events
10097 to echo as if it were being freshly read from the keyboard. */
10098 this_command_key_count_reset
= 1;
10103 DEFUN ("clear-this-command-keys", Fclear_this_command_keys
,
10104 Sclear_this_command_keys
, 0, 1, 0,
10105 doc
: /* Clear out the vector that `this-command-keys' returns.
10106 Also clear the record of the last 100 events, unless optional arg
10107 KEEP-RECORD is non-nil. */)
10109 Lisp_Object keep_record
;
10113 this_command_key_count
= 0;
10114 this_command_key_count_reset
= 0;
10116 if (NILP (keep_record
))
10118 for (i
= 0; i
< XVECTOR (recent_keys
)->size
; ++i
)
10119 XVECTOR (recent_keys
)->contents
[i
] = Qnil
;
10121 recent_keys_index
= 0;
10126 DEFUN ("recursion-depth", Frecursion_depth
, Srecursion_depth
, 0, 0, 0,
10127 doc
: /* Return the current depth in recursive edits. */)
10131 XSETFASTINT (temp
, command_loop_level
+ minibuf_level
);
10135 DEFUN ("open-dribble-file", Fopen_dribble_file
, Sopen_dribble_file
, 1, 1,
10136 "FOpen dribble file: ",
10137 doc
: /* Start writing all keyboard characters to a dribble file called FILE.
10138 If FILE is nil, close any open dribble file. */)
10149 file
= Fexpand_file_name (file
, Qnil
);
10150 dribble
= fopen (SDATA (file
), "w");
10152 report_file_error ("Opening dribble", Fcons (file
, Qnil
));
10157 DEFUN ("discard-input", Fdiscard_input
, Sdiscard_input
, 0, 0, 0,
10158 doc
: /* Discard the contents of the terminal input buffer.
10159 Also end any kbd macro being defined. */)
10162 if (!NILP (current_kboard
->defining_kbd_macro
))
10164 /* Discard the last command from the macro. */
10165 Fcancel_kbd_macro_events ();
10169 update_mode_lines
++;
10171 Vunread_command_events
= Qnil
;
10172 unread_command_char
= -1;
10174 discard_tty_input ();
10176 kbd_fetch_ptr
= kbd_store_ptr
;
10182 DEFUN ("suspend-emacs", Fsuspend_emacs
, Ssuspend_emacs
, 0, 1, "",
10183 doc
: /* Stop Emacs and return to superior process. You can resume later.
10184 If `cannot-suspend' is non-nil, or if the system doesn't support job
10185 control, run a subshell instead.
10187 If optional arg STUFFSTRING is non-nil, its characters are stuffed
10188 to be read as terminal input by Emacs's parent, after suspension.
10190 Before suspending, run the normal hook `suspend-hook'.
10191 After resumption run the normal hook `suspend-resume-hook'.
10193 Some operating systems cannot stop the Emacs process and resume it later.
10194 On such systems, Emacs starts a subshell instead of suspending. */)
10196 Lisp_Object stuffstring
;
10198 int count
= SPECPDL_INDEX ();
10199 int old_height
, old_width
;
10201 struct gcpro gcpro1
;
10203 if (tty_list
&& tty_list
->next
)
10204 error ("There are other tty frames open; close them before suspending Emacs");
10206 if (!NILP (stuffstring
))
10207 CHECK_STRING (stuffstring
);
10209 /* Run the functions in suspend-hook. */
10210 if (!NILP (Vrun_hooks
))
10211 call1 (Vrun_hooks
, intern ("suspend-hook"));
10213 GCPRO1 (stuffstring
);
10214 get_tty_size (fileno (CURTTY ()->input
), &old_width
, &old_height
);
10215 reset_all_sys_modes ();
10216 /* sys_suspend can get an error if it tries to fork a subshell
10217 and the system resources aren't available for that. */
10218 record_unwind_protect ((Lisp_Object (*) P_ ((Lisp_Object
))) init_all_sys_modes
,
10220 stuff_buffered_input (stuffstring
);
10221 if (cannot_suspend
)
10225 unbind_to (count
, Qnil
);
10227 /* Check if terminal/window size has changed.
10228 Note that this is not useful when we are running directly
10229 with a window system; but suspend should be disabled in that case. */
10230 get_tty_size (fileno (CURTTY ()->input
), &width
, &height
);
10231 if (width
!= old_width
|| height
!= old_height
)
10232 change_frame_size (SELECTED_FRAME (), height
, width
, 0, 0, 0);
10234 /* Run suspend-resume-hook. */
10235 if (!NILP (Vrun_hooks
))
10236 call1 (Vrun_hooks
, intern ("suspend-resume-hook"));
10242 /* If STUFFSTRING is a string, stuff its contents as pending terminal input.
10243 Then in any case stuff anything Emacs has read ahead and not used. */
10246 stuff_buffered_input (stuffstring
)
10247 Lisp_Object stuffstring
;
10249 #ifdef SIGTSTP /* stuff_char is defined if SIGTSTP. */
10250 register unsigned char *p
;
10252 if (STRINGP (stuffstring
))
10254 register int count
;
10256 p
= SDATA (stuffstring
);
10257 count
= SBYTES (stuffstring
);
10258 while (count
-- > 0)
10263 /* Anything we have read ahead, put back for the shell to read. */
10264 /* ?? What should this do when we have multiple keyboards??
10265 Should we ignore anything that was typed in at the "wrong" kboard?
10267 rms: we should stuff everything back into the kboard
10269 for (; kbd_fetch_ptr
!= kbd_store_ptr
; kbd_fetch_ptr
++)
10272 if (kbd_fetch_ptr
== kbd_buffer
+ KBD_BUFFER_SIZE
)
10273 kbd_fetch_ptr
= kbd_buffer
;
10274 if (kbd_fetch_ptr
->kind
== ASCII_KEYSTROKE_EVENT
)
10275 stuff_char (kbd_fetch_ptr
->code
);
10277 clear_event (kbd_fetch_ptr
);
10281 #endif /* SIGTSTP */
10285 set_waiting_for_input (time_to_clear
)
10286 EMACS_TIME
*time_to_clear
;
10288 input_available_clear_time
= time_to_clear
;
10290 /* Tell handle_interrupt to throw back to read_char, */
10291 waiting_for_input
= 1;
10293 /* If handle_interrupt was called before and buffered a C-g,
10294 make it run again now, to avoid timing error. */
10295 if (!NILP (Vquit_flag
))
10296 quit_throw_to_read_char ();
10300 clear_waiting_for_input ()
10302 /* Tell handle_interrupt not to throw back to read_char, */
10303 waiting_for_input
= 0;
10304 input_available_clear_time
= 0;
10307 /* The SIGINT handler.
10309 If we have a frame on the controlling tty, we assume that the
10310 SIGINT was generated by C-g, so we call handle_interrupt.
10311 Otherwise, the handler kills Emacs. */
10314 interrupt_signal (signalnum
) /* If we don't have an argument, */
10315 int signalnum
; /* some compilers complain in signal calls. */
10317 /* Must preserve main program's value of errno. */
10318 int old_errno
= errno
;
10319 struct display
*display
;
10321 #if defined (USG) && !defined (POSIX_SIGNALS)
10322 /* USG systems forget handlers when they are used;
10323 must reestablish each time */
10324 signal (SIGINT
, interrupt_signal
);
10325 signal (SIGQUIT
, interrupt_signal
);
10328 SIGNAL_THREAD_CHECK (signalnum
);
10330 /* See if we have an active display on our controlling terminal. */
10331 display
= get_named_tty_display (NULL
);
10334 /* If there are no frames there, let's pretend that we are a
10335 well-behaving UN*X program and quit. */
10336 fatal_error_signal (SIGTERM
);
10340 /* Otherwise, the SIGINT was probably generated by C-g. */
10342 /* Set internal_last_event_frame to the top frame of the
10343 controlling tty, if we have a frame there. We disable the
10344 interrupt key on secondary ttys, so the SIGINT must have come
10345 from the controlling tty. */
10346 internal_last_event_frame
= display
->display_info
.tty
->top_frame
;
10348 handle_interrupt ();
10354 /* This routine is called at interrupt level in response to C-g.
10356 It is called from the SIGINT handler or kbd_buffer_store_event.
10358 If `waiting_for_input' is non zero, then unless `echoing' is
10359 nonzero, immediately throw back to read_char.
10361 Otherwise it sets the Lisp variable quit-flag not-nil. This causes
10362 eval to throw, when it gets a chance. If quit-flag is already
10363 non-nil, it stops the job right away. */
10366 handle_interrupt ()
10372 /* XXX This code needs to be revised for multi-tty support. */
10373 if (!NILP (Vquit_flag
)
10375 && get_named_tty_display (NULL
)
10379 /* If SIGINT isn't blocked, don't let us be interrupted by
10380 another SIGINT, it might be harmful due to non-reentrancy
10381 in I/O functions. */
10382 sigblock (sigmask (SIGINT
));
10385 reset_all_sys_modes ();
10387 #ifdef SIGTSTP /* Support possible in later USG versions */
10389 * On systems which can suspend the current process and return to the original
10390 * shell, this command causes the user to end up back at the shell.
10391 * The "Auto-save" and "Abort" questions are not asked until
10392 * the user elects to return to emacs, at which point he can save the current
10393 * job and either dump core or continue.
10398 if (sys_suspend () == -1)
10400 printf ("Not running as a subprocess;\n");
10401 printf ("you can continue or abort.\n");
10403 #else /* not VMS */
10404 /* Perhaps should really fork an inferior shell?
10405 But that would not provide any way to get back
10406 to the original shell, ever. */
10407 printf ("No support for stopping a process on this operating system;\n");
10408 printf ("you can continue or abort.\n");
10409 #endif /* not VMS */
10410 #endif /* not SIGTSTP */
10412 /* We must remain inside the screen area when the internal terminal
10413 is used. Note that [Enter] is not echoed by dos. */
10416 /* It doesn't work to autosave while GC is in progress;
10417 the code used for auto-saving doesn't cope with the mark bit. */
10418 if (!gc_in_progress
)
10420 printf ("Auto-save? (y or n) ");
10422 if (((c
= getchar ()) & ~040) == 'Y')
10424 Fdo_auto_save (Qt
, Qnil
);
10426 printf ("\r\nAuto-save done");
10427 #else /* not MSDOS */
10428 printf ("Auto-save done\n");
10429 #endif /* not MSDOS */
10431 while (c
!= '\n') c
= getchar ();
10435 /* During GC, it must be safe to reenable quitting again. */
10436 Vinhibit_quit
= Qnil
;
10439 #endif /* not MSDOS */
10440 printf ("Garbage collection in progress; cannot auto-save now\r\n");
10441 printf ("but will instead do a real quit after garbage collection ends\r\n");
10446 printf ("\r\nAbort? (y or n) ");
10447 #else /* not MSDOS */
10449 printf ("Abort (and enter debugger)? (y or n) ");
10450 #else /* not VMS */
10451 printf ("Abort (and dump core)? (y or n) ");
10452 #endif /* not VMS */
10453 #endif /* not MSDOS */
10455 if (((c
= getchar ()) & ~040) == 'Y')
10457 while (c
!= '\n') c
= getchar ();
10459 printf ("\r\nContinuing...\r\n");
10460 #else /* not MSDOS */
10461 printf ("Continuing...\n");
10462 #endif /* not MSDOS */
10464 init_all_sys_modes ();
10469 /* If executing a function that wants to be interrupted out of
10470 and the user has not deferred quitting by binding `inhibit-quit'
10471 then quit right away. */
10472 if (immediate_quit
&& NILP (Vinhibit_quit
))
10474 struct gl_state_s saved
;
10475 struct gcpro gcpro1
, gcpro2
, gcpro3
, gcpro4
;
10477 immediate_quit
= 0;
10480 GCPRO4 (saved
.object
, saved
.global_code
,
10481 saved
.current_syntax_table
, saved
.old_prop
);
10482 Fsignal (Qquit
, Qnil
);
10487 /* Else request quit when it's safe */
10491 if (waiting_for_input
&& !echoing
)
10492 quit_throw_to_read_char ();
10495 /* Handle a C-g by making read_char return C-g. */
10498 quit_throw_to_read_char ()
10501 /* Prevent another signal from doing this before we finish. */
10502 clear_waiting_for_input ();
10505 Vunread_command_events
= Qnil
;
10506 unread_command_char
= -1;
10508 #if 0 /* Currently, sit_for is called from read_char without turning
10509 off polling. And that can call set_waiting_for_input.
10510 It seems to be harmless. */
10511 #ifdef POLL_FOR_INPUT
10512 /* May be > 1 if in recursive minibuffer. */
10513 if (poll_suppress_count
== 0)
10517 if (FRAMEP (internal_last_event_frame
)
10518 && !EQ (internal_last_event_frame
, selected_frame
))
10519 do_switch_frame (make_lispy_switch_frame (internal_last_event_frame
),
10522 _longjmp (getcjmp
, 1);
10525 DEFUN ("set-input-mode", Fset_input_mode
, Sset_input_mode
, 3, 4, 0,
10526 doc
: /* Set mode of reading keyboard input.
10527 First arg INTERRUPT non-nil means use input interrupts;
10528 nil means use CBREAK mode.
10529 Second arg FLOW non-nil means use ^S/^Q flow control for output to terminal
10530 (no effect except in CBREAK mode).
10531 Third arg META t means accept 8-bit input (for a Meta key).
10532 META nil means ignore the top bit, on the assumption it is parity.
10533 Otherwise, accept 8-bit input and don't use the top bit for Meta.
10534 Optional fourth arg QUIT if non-nil specifies character to use for quitting.
10535 See also `current-input-mode'. */)
10536 (interrupt
, flow
, meta
, quit
)
10537 Lisp_Object interrupt
, flow
, meta
, quit
;
10539 /* XXX This function needs to be revised for multi-device support.
10540 Currently it compiles fine, but its semantics are wrong. It sets
10541 global parameters (e.g. interrupt_input) based on only the
10542 current frame's device. */
10545 && (!INTEGERP (quit
) || XINT (quit
) < 0 || XINT (quit
) > 0400))
10546 error ("set-input-mode: QUIT must be an ASCII character");
10548 #ifdef POLL_FOR_INPUT
10553 /* this causes startup screen to be restored and messes with the mouse */
10554 reset_all_sys_modes ();
10558 /* Note SIGIO has been undef'd if FIONREAD is missing. */
10559 if (FRAME_DISPLAY (SELECTED_FRAME ())->read_socket_hook
)
10561 /* When using X, don't give the user a real choice,
10562 because we haven't implemented the mechanisms to support it. */
10563 #ifdef NO_SOCK_SIGIO
10564 interrupt_input
= 0;
10565 #else /* not NO_SOCK_SIGIO */
10566 interrupt_input
= 1;
10567 #endif /* NO_SOCK_SIGIO */
10570 interrupt_input
= !NILP (interrupt
);
10571 #else /* not SIGIO */
10572 interrupt_input
= 0;
10573 #endif /* not SIGIO */
10575 /* Our VMS input only works by interrupts, as of now. */
10577 interrupt_input
= 1;
10580 if (FRAME_TERMCAP_P (XFRAME (selected_frame
)))
10582 struct tty_display_info
*tty
= CURTTY ();
10583 tty
->flow_control
= !NILP (flow
);
10586 else if (EQ (meta
, Qt
))
10593 /* Don't let this value be out of range. */
10594 quit_char
= XINT (quit
) & (NILP (meta
) ? 0177 : 0377);
10597 init_all_sys_modes ();
10600 #ifdef POLL_FOR_INPUT
10601 poll_suppress_count
= 1;
10607 DEFUN ("current-input-mode", Fcurrent_input_mode
, Scurrent_input_mode
, 0, 0, 0,
10608 doc
: /* Return information about the way Emacs currently reads keyboard input.
10609 The value is a list of the form (INTERRUPT FLOW META QUIT), where
10610 INTERRUPT is non-nil if Emacs is using interrupt-driven input; if
10611 nil, Emacs is using CBREAK mode.
10612 FLOW is non-nil if Emacs uses ^S/^Q flow control for output to the
10613 terminal; this does not apply if Emacs uses interrupt-driven input.
10614 META is t if accepting 8-bit input with 8th bit as Meta flag.
10615 META nil means ignoring the top bit, on the assumption it is parity.
10616 META is neither t nor nil if accepting 8-bit input and using
10617 all 8 bits as the character code.
10618 QUIT is the character Emacs currently uses to quit.
10619 The elements of this list correspond to the arguments of
10620 `set-input-mode'. */)
10623 Lisp_Object val
[4];
10624 struct frame
*sf
= XFRAME (selected_frame
);
10626 val
[0] = interrupt_input
? Qt
: Qnil
;
10627 if (FRAME_TERMCAP_P (sf
))
10629 val
[1] = FRAME_TTY (sf
)->flow_control
? Qt
: Qnil
;
10630 val
[2] = (FRAME_TTY (sf
)->meta_key
== 2
10632 : (CURTTY ()->meta_key
== 1 ? Qt
: Qnil
));
10639 XSETFASTINT (val
[3], quit_char
);
10641 return Flist (sizeof (val
) / sizeof (val
[0]), val
);
10644 DEFUN ("posn-at-x-y", Fposn_at_x_y
, Sposn_at_x_y
, 2, 4, 0,
10645 doc
: /* Return position information for pixel coordinates X and Y.
10646 By default, X and Y are relative to text area of the selected window.
10647 Optional third arg FRAME_OR_WINDOW non-nil specifies frame or window.
10648 If optional fourth arg WHOLE is non-nil, X is relative to the left
10649 edge of the window.
10651 The return value is similar to a mouse click position:
10652 (WINDOW AREA-OR-POS (X . Y) TIMESTAMP OBJECT POS (COL . ROW)
10653 IMAGE (DX . DY) (WIDTH . HEIGHT))
10654 The `posn-' functions access elements of such lists. */)
10655 (x
, y
, frame_or_window
, whole
)
10656 Lisp_Object x
, y
, frame_or_window
, whole
;
10661 if (NILP (frame_or_window
))
10662 frame_or_window
= selected_window
;
10664 if (WINDOWP (frame_or_window
))
10668 CHECK_LIVE_WINDOW (frame_or_window
);
10670 w
= XWINDOW (frame_or_window
);
10671 XSETINT (x
, (WINDOW_TO_FRAME_PIXEL_X (w
, XINT (x
))
10673 ? window_box_left_offset (w
, TEXT_AREA
)
10674 : - (WINDOW_LEFT_SCROLL_BAR_COLS (w
)
10675 * WINDOW_FRAME_COLUMN_WIDTH (w
)))));
10676 XSETINT (y
, WINDOW_TO_FRAME_PIXEL_Y (w
, XINT (y
)));
10677 frame_or_window
= w
->frame
;
10680 CHECK_LIVE_FRAME (frame_or_window
);
10682 return make_lispy_position (XFRAME (frame_or_window
), &x
, &y
, 0);
10685 DEFUN ("posn-at-point", Fposn_at_point
, Sposn_at_point
, 0, 2, 0,
10686 doc
: /* Return position information for buffer POS in WINDOW.
10687 POS defaults to point in WINDOW; WINDOW defaults to the selected window.
10689 Return nil if position is not visible in window. Otherwise,
10690 the return value is similar to that returned by `event-start' for
10691 a mouse click at the upper left corner of the glyph corresponding
10692 to the given buffer position:
10693 (WINDOW AREA-OR-POS (X . Y) TIMESTAMP OBJECT POS (COL . ROW)
10694 IMAGE (DX . DY) (WIDTH . HEIGHT))
10695 The `posn-' functions access elements of such lists. */)
10697 Lisp_Object pos
, window
;
10701 tem
= Fpos_visible_in_window_p (pos
, window
, Qt
);
10703 tem
= Fposn_at_x_y (XCAR (tem
), XCAR (XCDR (tem
)), window
, Qnil
);
10709 * Set up a new kboard object with reasonable initial values.
10715 kb
->Voverriding_terminal_local_map
= Qnil
;
10716 kb
->Vlast_command
= Qnil
;
10717 kb
->Vreal_last_command
= Qnil
;
10718 kb
->Vprefix_arg
= Qnil
;
10719 kb
->Vlast_prefix_arg
= Qnil
;
10720 kb
->kbd_queue
= Qnil
;
10721 kb
->kbd_queue_has_data
= 0;
10722 kb
->immediate_echo
= 0;
10723 kb
->echo_string
= Qnil
;
10724 kb
->echo_after_prompt
= -1;
10725 kb
->kbd_macro_buffer
= 0;
10726 kb
->kbd_macro_bufsize
= 0;
10727 kb
->defining_kbd_macro
= Qnil
;
10728 kb
->Vlast_kbd_macro
= Qnil
;
10729 kb
->reference_count
= 0;
10730 kb
->Vsystem_key_alist
= Qnil
;
10731 kb
->system_key_syms
= Qnil
;
10732 kb
->Vdefault_minibuffer_frame
= Qnil
;
10736 * Destroy the contents of a kboard object, but not the object itself.
10737 * We use this just before deleting it, or if we're going to initialize
10738 * it a second time.
10744 if (kb
->kbd_macro_buffer
)
10745 xfree (kb
->kbd_macro_buffer
);
10748 #ifdef MULTI_KBOARD
10750 /* Free KB and memory referenced from it. */
10758 for (kbp
= &all_kboards
; *kbp
!= kb
; kbp
= &(*kbp
)->next_kboard
)
10761 *kbp
= kb
->next_kboard
;
10763 /* Prevent a dangling reference to KB. */
10764 if (kb
== current_kboard
10765 && FRAMEP (selected_frame
)
10766 && FRAME_LIVE_P (XFRAME (selected_frame
)))
10768 current_kboard
= XFRAME (selected_frame
)->kboard
;
10769 if (current_kboard
== kb
)
10777 #endif /* MULTI_KBOARD */
10782 /* This is correct before outermost invocation of the editor loop */
10783 command_loop_level
= -1;
10784 immediate_quit
= 0;
10785 quit_char
= Ctl ('g');
10786 Vunread_command_events
= Qnil
;
10787 unread_command_char
= -1;
10788 EMACS_SET_SECS_USECS (timer_idleness_start_time
, -1, -1);
10790 recent_keys_index
= 0;
10791 kbd_fetch_ptr
= kbd_buffer
;
10792 kbd_store_ptr
= kbd_buffer
;
10794 do_mouse_tracking
= Qnil
;
10798 /* This means that command_loop_1 won't try to select anything the first
10800 internal_last_event_frame
= Qnil
;
10801 Vlast_event_frame
= internal_last_event_frame
;
10803 #ifdef MULTI_KBOARD
10804 current_kboard
= initial_kboard
;
10806 wipe_kboard (current_kboard
);
10807 init_kboard (current_kboard
);
10809 if (!noninteractive
)
10811 /* Before multi-tty support, these handlers used to be installed
10812 only if the current session was a tty session. Now an Emacs
10813 session may have multiple display types, so we always handle
10814 SIGINT. There is special code in interrupt_signal to exit
10815 Emacs on SIGINT when there are no termcap frames on the
10816 controlling terminal. */
10817 signal (SIGINT
, interrupt_signal
);
10818 #if defined (HAVE_TERMIO) || defined (HAVE_TERMIOS)
10819 /* For systems with SysV TERMIO, C-g is set up for both SIGINT and
10820 SIGQUIT and we can't tell which one it will give us. */
10821 signal (SIGQUIT
, interrupt_signal
);
10822 #endif /* HAVE_TERMIO */
10824 /* Note SIGIO has been undef'd if FIONREAD is missing. */
10826 if (!noninteractive
)
10827 signal (SIGIO
, input_available_signal
);
10830 /* Use interrupt input by default, if it works and noninterrupt input
10831 has deficiencies. */
10833 #ifdef INTERRUPT_INPUT
10834 interrupt_input
= 1;
10836 interrupt_input
= 0;
10839 /* Our VMS input only works by interrupts, as of now. */
10841 interrupt_input
= 1;
10847 if (keyboard_init_hook
)
10848 (*keyboard_init_hook
) ();
10850 #ifdef POLL_FOR_INPUT
10851 poll_suppress_count
= 1;
10856 /* At least provide an escape route since C-g doesn't work. */
10857 signal (SIGINT
, interrupt_signal
);
10861 /* This type's only use is in syms_of_keyboard, to initialize the
10862 event header symbols and put properties on them. */
10863 struct event_head
{
10869 struct event_head head_table
[] = {
10870 {&Qmouse_movement
, "mouse-movement", &Qmouse_movement
},
10871 {&Qscroll_bar_movement
, "scroll-bar-movement", &Qmouse_movement
},
10872 {&Qswitch_frame
, "switch-frame", &Qswitch_frame
},
10873 {&Qdelete_frame
, "delete-frame", &Qdelete_frame
},
10874 {&Qiconify_frame
, "iconify-frame", &Qiconify_frame
},
10875 {&Qmake_frame_visible
, "make-frame-visible", &Qmake_frame_visible
},
10876 /* `select-window' should be handled just like `switch-frame'
10877 in read_key_sequence. */
10878 {&Qselect_window
, "select-window", &Qswitch_frame
}
10882 syms_of_keyboard ()
10884 Vpre_help_message
= Qnil
;
10885 staticpro (&Vpre_help_message
);
10887 Vlispy_mouse_stem
= build_string ("mouse");
10888 staticpro (&Vlispy_mouse_stem
);
10891 QCimage
= intern (":image");
10892 staticpro (&QCimage
);
10894 staticpro (&Qhelp_echo
);
10895 Qhelp_echo
= intern ("help-echo");
10897 staticpro (&item_properties
);
10898 item_properties
= Qnil
;
10900 staticpro (&tool_bar_item_properties
);
10901 tool_bar_item_properties
= Qnil
;
10902 staticpro (&tool_bar_items_vector
);
10903 tool_bar_items_vector
= Qnil
;
10905 staticpro (&real_this_command
);
10906 real_this_command
= Qnil
;
10908 Qtimer_event_handler
= intern ("timer-event-handler");
10909 staticpro (&Qtimer_event_handler
);
10911 Qdisabled_command_function
= intern ("disabled-command-function");
10912 staticpro (&Qdisabled_command_function
);
10914 Qself_insert_command
= intern ("self-insert-command");
10915 staticpro (&Qself_insert_command
);
10917 Qforward_char
= intern ("forward-char");
10918 staticpro (&Qforward_char
);
10920 Qbackward_char
= intern ("backward-char");
10921 staticpro (&Qbackward_char
);
10923 Qdisabled
= intern ("disabled");
10924 staticpro (&Qdisabled
);
10926 Qundefined
= intern ("undefined");
10927 staticpro (&Qundefined
);
10929 Qpre_command_hook
= intern ("pre-command-hook");
10930 staticpro (&Qpre_command_hook
);
10932 Qpost_command_hook
= intern ("post-command-hook");
10933 staticpro (&Qpost_command_hook
);
10935 Qpost_command_idle_hook
= intern ("post-command-idle-hook");
10936 staticpro (&Qpost_command_idle_hook
);
10938 Qdeferred_action_function
= intern ("deferred-action-function");
10939 staticpro (&Qdeferred_action_function
);
10941 Qcommand_hook_internal
= intern ("command-hook-internal");
10942 staticpro (&Qcommand_hook_internal
);
10944 Qfunction_key
= intern ("function-key");
10945 staticpro (&Qfunction_key
);
10946 Qmouse_click
= intern ("mouse-click");
10947 staticpro (&Qmouse_click
);
10949 Qlanguage_change
= intern ("language-change");
10950 staticpro (&Qlanguage_change
);
10952 Qdrag_n_drop
= intern ("drag-n-drop");
10953 staticpro (&Qdrag_n_drop
);
10955 Qsave_session
= intern ("save-session");
10956 staticpro(&Qsave_session
);
10958 Qusr1_signal
= intern ("usr1-signal");
10959 staticpro (&Qusr1_signal
);
10960 Qusr2_signal
= intern ("usr2-signal");
10961 staticpro (&Qusr2_signal
);
10963 Qmenu_enable
= intern ("menu-enable");
10964 staticpro (&Qmenu_enable
);
10965 Qmenu_alias
= intern ("menu-alias");
10966 staticpro (&Qmenu_alias
);
10967 QCenable
= intern (":enable");
10968 staticpro (&QCenable
);
10969 QCvisible
= intern (":visible");
10970 staticpro (&QCvisible
);
10971 QChelp
= intern (":help");
10972 staticpro (&QChelp
);
10973 QCfilter
= intern (":filter");
10974 staticpro (&QCfilter
);
10975 QCbutton
= intern (":button");
10976 staticpro (&QCbutton
);
10977 QCkeys
= intern (":keys");
10978 staticpro (&QCkeys
);
10979 QCkey_sequence
= intern (":key-sequence");
10980 staticpro (&QCkey_sequence
);
10981 QCtoggle
= intern (":toggle");
10982 staticpro (&QCtoggle
);
10983 QCradio
= intern (":radio");
10984 staticpro (&QCradio
);
10986 Qmode_line
= intern ("mode-line");
10987 staticpro (&Qmode_line
);
10988 Qvertical_line
= intern ("vertical-line");
10989 staticpro (&Qvertical_line
);
10990 Qvertical_scroll_bar
= intern ("vertical-scroll-bar");
10991 staticpro (&Qvertical_scroll_bar
);
10992 Qmenu_bar
= intern ("menu-bar");
10993 staticpro (&Qmenu_bar
);
10995 Qabove_handle
= intern ("above-handle");
10996 staticpro (&Qabove_handle
);
10997 Qhandle
= intern ("handle");
10998 staticpro (&Qhandle
);
10999 Qbelow_handle
= intern ("below-handle");
11000 staticpro (&Qbelow_handle
);
11001 Qup
= intern ("up");
11003 Qdown
= intern ("down");
11004 staticpro (&Qdown
);
11005 Qtop
= intern ("top");
11007 Qbottom
= intern ("bottom");
11008 staticpro (&Qbottom
);
11009 Qend_scroll
= intern ("end-scroll");
11010 staticpro (&Qend_scroll
);
11011 Qratio
= intern ("ratio");
11012 staticpro (&Qratio
);
11014 Qevent_kind
= intern ("event-kind");
11015 staticpro (&Qevent_kind
);
11016 Qevent_symbol_elements
= intern ("event-symbol-elements");
11017 staticpro (&Qevent_symbol_elements
);
11018 Qevent_symbol_element_mask
= intern ("event-symbol-element-mask");
11019 staticpro (&Qevent_symbol_element_mask
);
11020 Qmodifier_cache
= intern ("modifier-cache");
11021 staticpro (&Qmodifier_cache
);
11023 Qrecompute_lucid_menubar
= intern ("recompute-lucid-menubar");
11024 staticpro (&Qrecompute_lucid_menubar
);
11025 Qactivate_menubar_hook
= intern ("activate-menubar-hook");
11026 staticpro (&Qactivate_menubar_hook
);
11028 Qpolling_period
= intern ("polling-period");
11029 staticpro (&Qpolling_period
);
11031 Qinput_method_function
= intern ("input-method-function");
11032 staticpro (&Qinput_method_function
);
11034 Qinput_method_exit_on_first_char
= intern ("input-method-exit-on-first-char");
11035 staticpro (&Qinput_method_exit_on_first_char
);
11036 Qinput_method_use_echo_area
= intern ("input-method-use-echo-area");
11037 staticpro (&Qinput_method_use_echo_area
);
11039 Fset (Qinput_method_exit_on_first_char
, Qnil
);
11040 Fset (Qinput_method_use_echo_area
, Qnil
);
11042 last_point_position_buffer
= Qnil
;
11045 struct event_head
*p
;
11047 for (p
= head_table
;
11048 p
< head_table
+ (sizeof (head_table
) / sizeof (head_table
[0]));
11051 *p
->var
= intern (p
->name
);
11052 staticpro (p
->var
);
11053 Fput (*p
->var
, Qevent_kind
, *p
->kind
);
11054 Fput (*p
->var
, Qevent_symbol_elements
, Fcons (*p
->var
, Qnil
));
11058 button_down_location
= Fmake_vector (make_number (1), Qnil
);
11059 staticpro (&button_down_location
);
11060 mouse_syms
= Fmake_vector (make_number (1), Qnil
);
11061 staticpro (&mouse_syms
);
11062 wheel_syms
= Fmake_vector (make_number (2), Qnil
);
11063 staticpro (&wheel_syms
);
11067 int len
= sizeof (modifier_names
) / sizeof (modifier_names
[0]);
11069 modifier_symbols
= Fmake_vector (make_number (len
), Qnil
);
11070 for (i
= 0; i
< len
; i
++)
11071 if (modifier_names
[i
])
11072 XVECTOR (modifier_symbols
)->contents
[i
] = intern (modifier_names
[i
]);
11073 staticpro (&modifier_symbols
);
11076 recent_keys
= Fmake_vector (make_number (NUM_RECENT_KEYS
), Qnil
);
11077 staticpro (&recent_keys
);
11079 this_command_keys
= Fmake_vector (make_number (40), Qnil
);
11080 staticpro (&this_command_keys
);
11082 raw_keybuf
= Fmake_vector (make_number (30), Qnil
);
11083 staticpro (&raw_keybuf
);
11085 Qextended_command_history
= intern ("extended-command-history");
11086 Fset (Qextended_command_history
, Qnil
);
11087 staticpro (&Qextended_command_history
);
11089 accent_key_syms
= Qnil
;
11090 staticpro (&accent_key_syms
);
11092 func_key_syms
= Qnil
;
11093 staticpro (&func_key_syms
);
11095 drag_n_drop_syms
= Qnil
;
11096 staticpro (&drag_n_drop_syms
);
11098 unread_switch_frame
= Qnil
;
11099 staticpro (&unread_switch_frame
);
11101 internal_last_event_frame
= Qnil
;
11102 staticpro (&internal_last_event_frame
);
11104 read_key_sequence_cmd
= Qnil
;
11105 staticpro (&read_key_sequence_cmd
);
11107 menu_bar_one_keymap_changed_items
= Qnil
;
11108 staticpro (&menu_bar_one_keymap_changed_items
);
11110 defsubr (&Sevent_convert_list
);
11111 defsubr (&Sread_key_sequence
);
11112 defsubr (&Sread_key_sequence_vector
);
11113 defsubr (&Srecursive_edit
);
11115 defsubr (&Strack_mouse
);
11117 defsubr (&Sinput_pending_p
);
11118 defsubr (&Scommand_execute
);
11119 defsubr (&Srecent_keys
);
11120 defsubr (&Sthis_command_keys
);
11121 defsubr (&Sthis_command_keys_vector
);
11122 defsubr (&Sthis_single_command_keys
);
11123 defsubr (&Sthis_single_command_raw_keys
);
11124 defsubr (&Sreset_this_command_lengths
);
11125 defsubr (&Sclear_this_command_keys
);
11126 defsubr (&Ssuspend_emacs
);
11127 defsubr (&Sabort_recursive_edit
);
11128 defsubr (&Sexit_recursive_edit
);
11129 defsubr (&Srecursion_depth
);
11130 defsubr (&Stop_level
);
11131 defsubr (&Sdiscard_input
);
11132 defsubr (&Sopen_dribble_file
);
11133 defsubr (&Sset_input_mode
);
11134 defsubr (&Scurrent_input_mode
);
11135 defsubr (&Sexecute_extended_command
);
11136 defsubr (&Sposn_at_point
);
11137 defsubr (&Sposn_at_x_y
);
11139 DEFVAR_LISP ("last-command-char", &last_command_char
,
11140 doc
: /* Last input event that was part of a command. */);
11142 DEFVAR_LISP_NOPRO ("last-command-event", &last_command_char
,
11143 doc
: /* Last input event that was part of a command. */);
11145 DEFVAR_LISP ("last-nonmenu-event", &last_nonmenu_event
,
11146 doc
: /* Last input event in a command, except for mouse menu events.
11147 Mouse menus give back keys that don't look like mouse events;
11148 this variable holds the actual mouse event that led to the menu,
11149 so that you can determine whether the command was run by mouse or not. */);
11151 DEFVAR_LISP ("last-input-char", &last_input_char
,
11152 doc
: /* Last input event. */);
11154 DEFVAR_LISP_NOPRO ("last-input-event", &last_input_char
,
11155 doc
: /* Last input event. */);
11157 DEFVAR_LISP ("unread-command-events", &Vunread_command_events
,
11158 doc
: /* List of events to be read as the command input.
11159 These events are processed first, before actual keyboard input. */);
11160 Vunread_command_events
= Qnil
;
11162 DEFVAR_INT ("unread-command-char", &unread_command_char
,
11163 doc
: /* If not -1, an object to be read as next command input event. */);
11165 DEFVAR_LISP ("unread-post-input-method-events", &Vunread_post_input_method_events
,
11166 doc
: /* List of events to be processed as input by input methods.
11167 These events are processed after `unread-command-events', but
11168 before actual keyboard input. */);
11169 Vunread_post_input_method_events
= Qnil
;
11171 DEFVAR_LISP ("unread-input-method-events", &Vunread_input_method_events
,
11172 doc
: /* List of events to be processed as input by input methods.
11173 These events are processed after `unread-command-events', but
11174 before actual keyboard input. */);
11175 Vunread_input_method_events
= Qnil
;
11177 DEFVAR_LISP ("meta-prefix-char", &meta_prefix_char
,
11178 doc
: /* Meta-prefix character code.
11179 Meta-foo as command input turns into this character followed by foo. */);
11180 XSETINT (meta_prefix_char
, 033);
11182 DEFVAR_KBOARD ("last-command", Vlast_command
,
11183 doc
: /* The last command executed.
11184 Normally a symbol with a function definition, but can be whatever was found
11185 in the keymap, or whatever the variable `this-command' was set to by that
11188 The value `mode-exit' is special; it means that the previous command
11189 read an event that told it to exit, and it did so and unread that event.
11190 In other words, the present command is the event that made the previous
11193 The value `kill-region' is special; it means that the previous command
11194 was a kill command. */);
11196 DEFVAR_KBOARD ("real-last-command", Vreal_last_command
,
11197 doc
: /* Same as `last-command', but never altered by Lisp code. */);
11199 DEFVAR_LISP ("this-command", &Vthis_command
,
11200 doc
: /* The command now being executed.
11201 The command can set this variable; whatever is put here
11202 will be in `last-command' during the following command. */);
11203 Vthis_command
= Qnil
;
11205 DEFVAR_LISP ("this-original-command", &Vthis_original_command
,
11206 doc
: /* The command bound to the current key sequence before remapping.
11207 It equals `this-command' if the original command was not remapped through
11208 any of the active keymaps. Otherwise, the value of `this-command' is the
11209 result of looking up the original command in the active keymaps. */);
11210 Vthis_original_command
= Qnil
;
11212 DEFVAR_INT ("auto-save-interval", &auto_save_interval
,
11213 doc
: /* *Number of input events between auto-saves.
11214 Zero means disable autosaving due to number of characters typed. */);
11215 auto_save_interval
= 300;
11217 DEFVAR_LISP ("auto-save-timeout", &Vauto_save_timeout
,
11218 doc
: /* *Number of seconds idle time before auto-save.
11219 Zero or nil means disable auto-saving due to idleness.
11220 After auto-saving due to this many seconds of idle time,
11221 Emacs also does a garbage collection if that seems to be warranted. */);
11222 XSETFASTINT (Vauto_save_timeout
, 30);
11224 DEFVAR_LISP ("echo-keystrokes", &Vecho_keystrokes
,
11225 doc
: /* *Nonzero means echo unfinished commands after this many seconds of pause.
11226 The value may be integer or floating point. */);
11227 Vecho_keystrokes
= make_number (1);
11229 DEFVAR_INT ("polling-period", &polling_period
,
11230 doc
: /* *Interval between polling for input during Lisp execution.
11231 The reason for polling is to make C-g work to stop a running program.
11232 Polling is needed only when using X windows and SIGIO does not work.
11233 Polling is automatically disabled in all other cases. */);
11234 polling_period
= 2;
11236 DEFVAR_LISP ("double-click-time", &Vdouble_click_time
,
11237 doc
: /* *Maximum time between mouse clicks to make a double-click.
11238 Measured in milliseconds. nil means disable double-click recognition;
11239 t means double-clicks have no time limit and are detected
11240 by position only. */);
11241 Vdouble_click_time
= make_number (500);
11243 DEFVAR_INT ("double-click-fuzz", &double_click_fuzz
,
11244 doc
: /* *Maximum mouse movement between clicks to make a double-click.
11245 On window-system frames, value is the number of pixels the mouse may have
11246 moved horizontally or vertically between two clicks to make a double-click.
11247 On non window-system frames, value is interpreted in units of 1/8 characters
11250 This variable is also the threshold for motion of the mouse
11251 to count as a drag. */);
11252 double_click_fuzz
= 3;
11254 DEFVAR_BOOL ("inhibit-local-menu-bar-menus", &inhibit_local_menu_bar_menus
,
11255 doc
: /* *Non-nil means inhibit local map menu bar menus. */);
11256 inhibit_local_menu_bar_menus
= 0;
11258 DEFVAR_INT ("num-input-keys", &num_input_keys
,
11259 doc
: /* Number of complete key sequences read as input so far.
11260 This includes key sequences read from keyboard macros.
11261 The number is effectively the number of interactive command invocations. */);
11262 num_input_keys
= 0;
11264 DEFVAR_INT ("num-nonmacro-input-events", &num_nonmacro_input_events
,
11265 doc
: /* Number of input events read from the keyboard so far.
11266 This does not include events generated by keyboard macros. */);
11267 num_nonmacro_input_events
= 0;
11269 DEFVAR_LISP ("last-event-frame", &Vlast_event_frame
,
11270 doc
: /* The frame in which the most recently read event occurred.
11271 If the last event came from a keyboard macro, this is set to `macro'. */);
11272 Vlast_event_frame
= Qnil
;
11274 /* This variable is set up in sysdep.c. */
11275 DEFVAR_LISP ("tty-erase-char", &Vtty_erase_char
,
11276 doc
: /* The ERASE character as set by the user with stty. */);
11278 DEFVAR_LISP ("help-char", &Vhelp_char
,
11279 doc
: /* Character to recognize as meaning Help.
11280 When it is read, do `(eval help-form)', and display result if it's a string.
11281 If the value of `help-form' is nil, this char can be read normally. */);
11282 XSETINT (Vhelp_char
, Ctl ('H'));
11284 DEFVAR_LISP ("help-event-list", &Vhelp_event_list
,
11285 doc
: /* List of input events to recognize as meaning Help.
11286 These work just like the value of `help-char' (see that). */);
11287 Vhelp_event_list
= Qnil
;
11289 DEFVAR_LISP ("help-form", &Vhelp_form
,
11290 doc
: /* Form to execute when character `help-char' is read.
11291 If the form returns a string, that string is displayed.
11292 If `help-form' is nil, the help char is not recognized. */);
11295 DEFVAR_LISP ("prefix-help-command", &Vprefix_help_command
,
11296 doc
: /* Command to run when `help-char' character follows a prefix key.
11297 This command is used only when there is no actual binding
11298 for that character after that prefix key. */);
11299 Vprefix_help_command
= Qnil
;
11301 DEFVAR_LISP ("top-level", &Vtop_level
,
11302 doc
: /* Form to evaluate when Emacs starts up.
11303 Useful to set before you dump a modified Emacs. */);
11306 DEFVAR_LISP ("keyboard-translate-table", &Vkeyboard_translate_table
,
11307 doc
: /* Translate table for keyboard input, or nil.
11308 If non-nil, the value should be a char-table. Each character read
11309 from the keyboard is looked up in this char-table. If the value found
11310 there is non-nil, then it is used instead of the actual input character.
11312 The value can also be a string or vector, but this is considered obsolete.
11313 If it is a string or vector of length N, character codes N and up are left
11314 untranslated. In a vector, an element which is nil means "no translation".
11316 This is applied to the characters supplied to input methods, not their
11317 output. See also `translation-table-for-input'. */);
11318 Vkeyboard_translate_table
= Qnil
;
11320 DEFVAR_BOOL ("cannot-suspend", &cannot_suspend
,
11321 doc
: /* Non-nil means to always spawn a subshell instead of suspending.
11322 \(Even if the operating system has support for stopping a process.\) */);
11323 cannot_suspend
= 0;
11325 DEFVAR_BOOL ("menu-prompting", &menu_prompting
,
11326 doc
: /* Non-nil means prompt with menus when appropriate.
11327 This is done when reading from a keymap that has a prompt string,
11328 for elements that have prompt strings.
11329 The menu is displayed on the screen
11330 if X menus were enabled at configuration
11331 time and the previous event was a mouse click prefix key.
11332 Otherwise, menu prompting uses the echo area. */);
11333 menu_prompting
= 1;
11335 DEFVAR_LISP ("menu-prompt-more-char", &menu_prompt_more_char
,
11336 doc
: /* Character to see next line of menu prompt.
11337 Type this character while in a menu prompt to rotate around the lines of it. */);
11338 XSETINT (menu_prompt_more_char
, ' ');
11340 DEFVAR_INT ("extra-keyboard-modifiers", &extra_keyboard_modifiers
,
11341 doc
: /* A mask of additional modifier keys to use with every keyboard character.
11342 Emacs applies the modifiers of the character stored here to each keyboard
11343 character it reads. For example, after evaluating the expression
11344 (setq extra-keyboard-modifiers ?\\C-x)
11345 all input characters will have the control modifier applied to them.
11347 Note that the character ?\\C-@, equivalent to the integer zero, does
11348 not count as a control character; rather, it counts as a character
11349 with no modifiers; thus, setting `extra-keyboard-modifiers' to zero
11350 cancels any modification. */);
11351 extra_keyboard_modifiers
= 0;
11353 DEFVAR_LISP ("deactivate-mark", &Vdeactivate_mark
,
11354 doc
: /* If an editing command sets this to t, deactivate the mark afterward.
11355 The command loop sets this to nil before each command,
11356 and tests the value when the command returns.
11357 Buffer modification stores t in this variable. */);
11358 Vdeactivate_mark
= Qnil
;
11360 DEFVAR_LISP ("command-hook-internal", &Vcommand_hook_internal
,
11361 doc
: /* Temporary storage of pre-command-hook or post-command-hook. */);
11362 Vcommand_hook_internal
= Qnil
;
11364 DEFVAR_LISP ("pre-command-hook", &Vpre_command_hook
,
11365 doc
: /* Normal hook run before each command is executed.
11366 If an unhandled error happens in running this hook,
11367 the hook value is set to nil, since otherwise the error
11368 might happen repeatedly and make Emacs nonfunctional. */);
11369 Vpre_command_hook
= Qnil
;
11371 DEFVAR_LISP ("post-command-hook", &Vpost_command_hook
,
11372 doc
: /* Normal hook run after each command is executed.
11373 If an unhandled error happens in running this hook,
11374 the hook value is set to nil, since otherwise the error
11375 might happen repeatedly and make Emacs nonfunctional. */);
11376 Vpost_command_hook
= Qnil
;
11378 DEFVAR_LISP ("post-command-idle-hook", &Vpost_command_idle_hook
,
11379 doc
: /* Normal hook run after each command is executed, if idle.
11380 Errors running the hook are caught and ignored. */);
11381 Vpost_command_idle_hook
= Qnil
;
11383 DEFVAR_INT ("post-command-idle-delay", &post_command_idle_delay
,
11384 doc
: /* Delay time before running `post-command-idle-hook'.
11385 This is measured in microseconds. */);
11386 post_command_idle_delay
= 100000;
11389 DEFVAR_LISP ("echo-area-clear-hook", ...,
11390 doc
: /* Normal hook run when clearing the echo area. */);
11392 Qecho_area_clear_hook
= intern ("echo-area-clear-hook");
11393 SET_SYMBOL_VALUE (Qecho_area_clear_hook
, Qnil
);
11395 DEFVAR_LISP ("lucid-menu-bar-dirty-flag", &Vlucid_menu_bar_dirty_flag
,
11396 doc
: /* Non-nil means menu bar, specified Lucid style, needs to be recomputed. */);
11397 Vlucid_menu_bar_dirty_flag
= Qnil
;
11399 DEFVAR_LISP ("menu-bar-final-items", &Vmenu_bar_final_items
,
11400 doc
: /* List of menu bar items to move to the end of the menu bar.
11401 The elements of the list are event types that may have menu bar bindings. */);
11402 Vmenu_bar_final_items
= Qnil
;
11404 DEFVAR_KBOARD ("overriding-terminal-local-map",
11405 Voverriding_terminal_local_map
,
11406 doc
: /* Per-terminal keymap that overrides all other local keymaps.
11407 If this variable is non-nil, it is used as a keymap instead of the
11408 buffer's local map, and the minor mode keymaps and text property keymaps.
11409 It also replaces `overriding-local-map'.
11411 This variable is intended to let commands such as `universal-argument'
11412 set up a different keymap for reading the next command. */);
11414 DEFVAR_LISP ("overriding-local-map", &Voverriding_local_map
,
11415 doc
: /* Keymap that overrides all other local keymaps.
11416 If this variable is non-nil, it is used as a keymap--replacing the
11417 buffer's local map, the minor mode keymaps, and char property keymaps. */);
11418 Voverriding_local_map
= Qnil
;
11420 DEFVAR_LISP ("overriding-local-map-menu-flag", &Voverriding_local_map_menu_flag
,
11421 doc
: /* Non-nil means `overriding-local-map' applies to the menu bar.
11422 Otherwise, the menu bar continues to reflect the buffer's local map
11423 and the minor mode maps regardless of `overriding-local-map'. */);
11424 Voverriding_local_map_menu_flag
= Qnil
;
11426 DEFVAR_LISP ("special-event-map", &Vspecial_event_map
,
11427 doc
: /* Keymap defining bindings for special events to execute at low level. */);
11428 Vspecial_event_map
= Fcons (intern ("keymap"), Qnil
);
11430 DEFVAR_LISP ("track-mouse", &do_mouse_tracking
,
11431 doc
: /* *Non-nil means generate motion events for mouse motion. */);
11433 DEFVAR_KBOARD ("system-key-alist", Vsystem_key_alist
,
11434 doc
: /* Alist of system-specific X windows key symbols.
11435 Each element should have the form (N . SYMBOL) where N is the
11436 numeric keysym code (sans the \"system-specific\" bit 1<<28)
11437 and SYMBOL is its name. */);
11439 DEFVAR_LISP ("deferred-action-list", &Vdeferred_action_list
,
11440 doc
: /* List of deferred actions to be performed at a later time.
11441 The precise format isn't relevant here; we just check whether it is nil. */);
11442 Vdeferred_action_list
= Qnil
;
11444 DEFVAR_LISP ("deferred-action-function", &Vdeferred_action_function
,
11445 doc
: /* Function to call to handle deferred actions, after each command.
11446 This function is called with no arguments after each command
11447 whenever `deferred-action-list' is non-nil. */);
11448 Vdeferred_action_function
= Qnil
;
11450 DEFVAR_LISP ("suggest-key-bindings", &Vsuggest_key_bindings
,
11451 doc
: /* *Non-nil means show the equivalent key-binding when M-x command has one.
11452 The value can be a length of time to show the message for.
11453 If the value is non-nil and not a number, we wait 2 seconds. */);
11454 Vsuggest_key_bindings
= Qt
;
11456 DEFVAR_LISP ("timer-list", &Vtimer_list
,
11457 doc
: /* List of active absolute time timers in order of increasing time. */);
11458 Vtimer_list
= Qnil
;
11460 DEFVAR_LISP ("timer-idle-list", &Vtimer_idle_list
,
11461 doc
: /* List of active idle-time timers in order of increasing time. */);
11462 Vtimer_idle_list
= Qnil
;
11464 DEFVAR_LISP ("input-method-function", &Vinput_method_function
,
11465 doc
: /* If non-nil, the function that implements the current input method.
11466 It's called with one argument, a printing character that was just read.
11467 \(That means a character with code 040...0176.)
11468 Typically this function uses `read-event' to read additional events.
11469 When it does so, it should first bind `input-method-function' to nil
11470 so it will not be called recursively.
11472 The function should return a list of zero or more events
11473 to be used as input. If it wants to put back some events
11474 to be reconsidered, separately, by the input method,
11475 it can add them to the beginning of `unread-command-events'.
11477 The input method function can find in `input-method-previous-method'
11478 the previous echo area message.
11480 The input method function should refer to the variables
11481 `input-method-use-echo-area' and `input-method-exit-on-first-char'
11482 for guidance on what to do. */);
11483 Vinput_method_function
= Qnil
;
11485 DEFVAR_LISP ("input-method-previous-message",
11486 &Vinput_method_previous_message
,
11487 doc
: /* When `input-method-function' is called, hold the previous echo area message.
11488 This variable exists because `read-event' clears the echo area
11489 before running the input method. It is nil if there was no message. */);
11490 Vinput_method_previous_message
= Qnil
;
11492 DEFVAR_LISP ("show-help-function", &Vshow_help_function
,
11493 doc
: /* If non-nil, the function that implements the display of help.
11494 It's called with one argument, the help string to display. */);
11495 Vshow_help_function
= Qnil
;
11497 DEFVAR_LISP ("disable-point-adjustment", &Vdisable_point_adjustment
,
11498 doc
: /* If non-nil, suppress point adjustment after executing a command.
11500 After a command is executed, if point is moved into a region that has
11501 special properties (e.g. composition, display), we adjust point to
11502 the boundary of the region. But, when a command sets this variable to
11503 non-nil, we suppress the point adjustment.
11505 This variable is set to nil before reading a command, and is checked
11506 just after executing the command. */);
11507 Vdisable_point_adjustment
= Qnil
;
11509 DEFVAR_LISP ("global-disable-point-adjustment",
11510 &Vglobal_disable_point_adjustment
,
11511 doc
: /* *If non-nil, always suppress point adjustment.
11513 The default value is nil, in which case, point adjustment are
11514 suppressed only after special commands that set
11515 `disable-point-adjustment' (which see) to non-nil. */);
11516 Vglobal_disable_point_adjustment
= Qnil
;
11518 DEFVAR_BOOL ("update-menu-bindings", &update_menu_bindings
,
11519 doc
: /* Non-nil means updating menu bindings is allowed.
11520 A value of nil means menu bindings should not be updated.
11521 Used during Emacs' startup. */);
11522 update_menu_bindings
= 1;
11524 DEFVAR_LISP ("minibuffer-message-timeout", &Vminibuffer_message_timeout
,
11525 doc
: /* *How long to display an echo-area message when the minibuffer is active.
11526 If the value is not a number, such messages don't time out. */);
11527 Vminibuffer_message_timeout
= make_number (2);
11529 DEFVAR_LISP ("throw-on-input", &Vthrow_on_input
,
11530 doc
: /* If non-nil, any keyboard input throws to this symbol.
11531 The value of that variable is passed to `quit-flag' and later causes a
11532 peculiar kind of quitting. */);
11533 Vthrow_on_input
= Qnil
;
11537 keys_of_keyboard ()
11539 initial_define_key (global_map
, Ctl ('Z'), "suspend-emacs");
11540 initial_define_key (control_x_map
, Ctl ('Z'), "suspend-emacs");
11541 initial_define_key (meta_map
, Ctl ('C'), "exit-recursive-edit");
11542 initial_define_key (global_map
, Ctl (']'), "abort-recursive-edit");
11543 initial_define_key (meta_map
, 'x', "execute-extended-command");
11545 initial_define_lispy_key (Vspecial_event_map
, "delete-frame",
11546 "handle-delete-frame");
11547 initial_define_lispy_key (Vspecial_event_map
, "iconify-frame",
11549 initial_define_lispy_key (Vspecial_event_map
, "make-frame-visible",
11551 /* Handling it at such a low-level causes read_key_sequence to get
11552 * confused because it doesn't realize that the current_buffer was
11553 * changed by read_char.
11555 * initial_define_lispy_key (Vspecial_event_map, "select-window",
11556 * "handle-select-window"); */
11557 initial_define_lispy_key (Vspecial_event_map
, "save-session",
11558 "handle-save-session");
11561 /* Mark the pointers in the kboard objects.
11562 Called by the Fgarbage_collector. */
11568 for (kb
= all_kboards
; kb
; kb
= kb
->next_kboard
)
11570 if (kb
->kbd_macro_buffer
)
11571 for (p
= kb
->kbd_macro_buffer
; p
< kb
->kbd_macro_ptr
; p
++)
11573 mark_object (kb
->Voverriding_terminal_local_map
);
11574 mark_object (kb
->Vlast_command
);
11575 mark_object (kb
->Vreal_last_command
);
11576 mark_object (kb
->Vprefix_arg
);
11577 mark_object (kb
->Vlast_prefix_arg
);
11578 mark_object (kb
->kbd_queue
);
11579 mark_object (kb
->defining_kbd_macro
);
11580 mark_object (kb
->Vlast_kbd_macro
);
11581 mark_object (kb
->Vsystem_key_alist
);
11582 mark_object (kb
->system_key_syms
);
11583 mark_object (kb
->Vdefault_minibuffer_frame
);
11584 mark_object (kb
->echo_string
);
11587 struct input_event
*event
;
11588 for (event
= kbd_fetch_ptr
; event
!= kbd_store_ptr
; event
++)
11590 if (event
== kbd_buffer
+ KBD_BUFFER_SIZE
)
11591 event
= kbd_buffer
;
11592 if (event
->kind
!= SELECTION_REQUEST_EVENT
11593 && event
->kind
!= SELECTION_CLEAR_EVENT
)
11595 mark_object (event
->x
);
11596 mark_object (event
->y
);
11598 mark_object (event
->frame_or_window
);
11599 mark_object (event
->arg
);
11604 /* arch-tag: 774e34d7-6d31-42f3-8397-e079a4e4c9ca
11605 (do not change this comment) */