1 /* Keyboard and mouse input; editor command loop.
2 Copyright (C) 1985, 1986, 1987, 1988, 1989, 1993, 1994, 1995,
3 1996, 1997, 1999, 2000, 2001, 2002, 2003, 2004,
4 2005 Free Software Foundation, Inc.
6 This file is part of GNU Emacs.
8 GNU Emacs is free software; you can redistribute it and/or modify
9 it under the terms of the GNU General Public License as published by
10 the Free Software Foundation; either version 2, or (at your option)
13 GNU Emacs is distributed in the hope that it will be useful,
14 but WITHOUT ANY WARRANTY; without even the implied warranty of
15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 GNU General Public License for more details.
18 You should have received a copy of the GNU General Public License
19 along with GNU Emacs; see the file COPYING. If not, write to
20 the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
21 Boston, MA 02110-1301, USA. */
29 #include "termhooks.h"
36 #include "character.h"
38 #include "dispextern.h"
40 #include "intervals.h"
42 #include "blockinput.h"
49 #ifdef HAVE_GTK_AND_PTHREAD
57 #include <sys/ioctl.h>
59 #endif /* not MSDOS */
61 #include "syssignal.h"
64 #include <sys/types.h>
73 /* This is to get the definitions of the XK_ symbols. */
80 #endif /* HAVE_NTGUI */
90 /* Variables for blockinput.h: */
92 /* Non-zero if interrupt input is blocked right now. */
93 int interrupt_input_blocked
;
95 /* Nonzero means an input interrupt has arrived
96 during the current critical section. */
97 int interrupt_input_pending
;
100 /* File descriptor to use for input. */
103 #ifdef HAVE_WINDOW_SYSTEM
104 /* Make all keyboard buffers much bigger when using X windows. */
106 /* But not too big (local data > 32K error) if on Mac OS Classic. */
107 #define KBD_BUFFER_SIZE 512
109 #define KBD_BUFFER_SIZE 4096
111 #else /* No X-windows, character input */
112 #define KBD_BUFFER_SIZE 4096
113 #endif /* No X-windows */
115 #define abs(x) ((x) >= 0 ? (x) : -(x))
117 /* Following definition copied from eval.c */
121 struct backtrace
*next
;
122 Lisp_Object
*function
;
123 Lisp_Object
*args
; /* Points to vector of args. */
124 int nargs
; /* length of vector. If nargs is UNEVALLED,
125 args points to slot holding list of
128 /* Nonzero means call value of debugger when done with this operation. */
133 KBOARD
*initial_kboard
;
134 KBOARD
*current_kboard
;
138 KBOARD the_only_kboard
;
141 /* Non-nil disable property on a command means
142 do not execute it; call disabled-command-function's value instead. */
143 Lisp_Object Qdisabled
, Qdisabled_command_function
;
145 #define NUM_RECENT_KEYS (100)
146 int recent_keys_index
; /* Index for storing next element into recent_keys */
147 int total_keys
; /* Total number of elements stored into recent_keys */
148 Lisp_Object recent_keys
; /* A vector, holding the last 100 keystrokes */
150 /* Vector holding the key sequence that invoked the current command.
151 It is reused for each command, and it may be longer than the current
152 sequence; this_command_key_count indicates how many elements
153 actually mean something.
154 It's easier to staticpro a single Lisp_Object than an array. */
155 Lisp_Object this_command_keys
;
156 int this_command_key_count
;
158 /* 1 after calling Freset_this_command_lengths.
160 int this_command_key_count_reset
;
162 /* This vector is used as a buffer to record the events that were actually read
163 by read_key_sequence. */
164 Lisp_Object raw_keybuf
;
165 int raw_keybuf_count
;
167 #define GROW_RAW_KEYBUF \
168 if (raw_keybuf_count == XVECTOR (raw_keybuf)->size) \
170 int newsize = 2 * XVECTOR (raw_keybuf)->size; \
172 new = Fmake_vector (make_number (newsize), Qnil); \
173 bcopy (XVECTOR (raw_keybuf)->contents, XVECTOR (new)->contents, \
174 raw_keybuf_count * sizeof (Lisp_Object)); \
178 /* Number of elements of this_command_keys
179 that precede this key sequence. */
180 int this_single_command_key_start
;
182 /* Record values of this_command_key_count and echo_length ()
183 before this command was read. */
184 static int before_command_key_count
;
185 static int before_command_echo_length
;
187 extern int minbuf_level
;
189 extern int message_enable_multibyte
;
191 extern struct backtrace
*backtrace_list
;
193 /* If non-nil, the function that implements the display of help.
194 It's called with one argument, the help string to display. */
196 Lisp_Object Vshow_help_function
;
198 /* If a string, the message displayed before displaying a help-echo
201 Lisp_Object Vpre_help_message
;
203 /* Nonzero means do menu prompting. */
205 static int menu_prompting
;
207 /* Character to see next line of menu prompt. */
209 static Lisp_Object menu_prompt_more_char
;
211 /* For longjmp to where kbd input is being done. */
213 static jmp_buf getcjmp
;
215 /* True while doing kbd input. */
216 int waiting_for_input
;
218 /* True while displaying for echoing. Delays C-g throwing. */
222 /* Non-null means we can start echoing at the next input pause even
223 though there is something in the echo area. */
225 static struct kboard
*ok_to_echo_at_next_pause
;
227 /* The kboard last echoing, or null for none. Reset to 0 in
228 cancel_echoing. If non-null, and a current echo area message
229 exists, and echo_message_buffer is eq to the current message
230 buffer, we know that the message comes from echo_kboard. */
232 struct kboard
*echo_kboard
;
234 /* The buffer used for echoing. Set in echo_now, reset in
237 Lisp_Object echo_message_buffer
;
239 /* Nonzero means disregard local maps for the menu bar. */
240 static int inhibit_local_menu_bar_menus
;
242 /* Nonzero means C-g should cause immediate error-signal. */
245 /* The user's ERASE setting. */
246 Lisp_Object Vtty_erase_char
;
248 /* Character to recognize as the help char. */
249 Lisp_Object Vhelp_char
;
251 /* List of other event types to recognize as meaning "help". */
252 Lisp_Object Vhelp_event_list
;
254 /* Form to execute when help char is typed. */
255 Lisp_Object Vhelp_form
;
257 /* Command to run when the help character follows a prefix key. */
258 Lisp_Object Vprefix_help_command
;
260 /* List of items that should move to the end of the menu bar. */
261 Lisp_Object Vmenu_bar_final_items
;
263 /* Non-nil means show the equivalent key-binding for
264 any M-x command that has one.
265 The value can be a length of time to show the message for.
266 If the value is non-nil and not a number, we wait 2 seconds. */
267 Lisp_Object Vsuggest_key_bindings
;
269 /* How long to display an echo-area message when the minibuffer is active.
270 If the value is not a number, such messages don't time out. */
271 Lisp_Object Vminibuffer_message_timeout
;
273 /* Character that causes a quit. Normally C-g.
275 If we are running on an ordinary terminal, this must be an ordinary
276 ASCII char, since we want to make it our interrupt character.
278 If we are not running on an ordinary terminal, it still needs to be
279 an ordinary ASCII char. This character needs to be recognized in
280 the input interrupt handler. At this point, the keystroke is
281 represented as a struct input_event, while the desired quit
282 character is specified as a lispy event. The mapping from struct
283 input_events to lispy events cannot run in an interrupt handler,
284 and the reverse mapping is difficult for anything but ASCII
287 FOR THESE ELABORATE AND UNSATISFYING REASONS, quit_char must be an
291 extern Lisp_Object current_global_map
;
292 extern int minibuf_level
;
294 /* If non-nil, this is a map that overrides all other local maps. */
295 Lisp_Object Voverriding_local_map
;
297 /* If non-nil, Voverriding_local_map applies to the menu bar. */
298 Lisp_Object Voverriding_local_map_menu_flag
;
300 /* Keymap that defines special misc events that should
301 be processed immediately at a low level. */
302 Lisp_Object Vspecial_event_map
;
304 /* Current depth in recursive edits. */
305 int command_loop_level
;
307 /* Total number of times command_loop has read a key sequence. */
308 EMACS_INT num_input_keys
;
310 /* Last input character read as a command. */
311 Lisp_Object last_command_char
;
313 /* Last input character read as a command, not counting menus
314 reached by the mouse. */
315 Lisp_Object last_nonmenu_event
;
317 /* Last input character read for any purpose. */
318 Lisp_Object last_input_char
;
320 /* If not Qnil, a list of objects to be read as subsequent command input. */
321 Lisp_Object Vunread_command_events
;
323 /* If not Qnil, a list of objects to be read as subsequent command input
324 including input method processing. */
325 Lisp_Object Vunread_input_method_events
;
327 /* If not Qnil, a list of objects to be read as subsequent command input
328 but NOT including input method processing. */
329 Lisp_Object Vunread_post_input_method_events
;
331 /* If not -1, an event to be read as subsequent command input. */
332 EMACS_INT unread_command_char
;
334 /* If not Qnil, this is a switch-frame event which we decided to put
335 off until the end of a key sequence. This should be read as the
336 next command input, after any unread_command_events.
338 read_key_sequence uses this to delay switch-frame events until the
339 end of the key sequence; Fread_char uses it to put off switch-frame
340 events until a non-ASCII event is acceptable as input. */
341 Lisp_Object unread_switch_frame
;
343 /* A mask of extra modifier bits to put into every keyboard char. */
344 EMACS_INT extra_keyboard_modifiers
;
346 /* Char to use as prefix when a meta character is typed in.
347 This is bound on entry to minibuffer in case ESC is changed there. */
349 Lisp_Object meta_prefix_char
;
351 /* Last size recorded for a current buffer which is not a minibuffer. */
352 static int last_non_minibuf_size
;
354 /* Number of idle seconds before an auto-save and garbage collection. */
355 static Lisp_Object Vauto_save_timeout
;
357 /* Total number of times read_char has returned. */
358 int num_input_events
;
360 /* Total number of times read_char has returned, outside of macros. */
361 EMACS_INT num_nonmacro_input_events
;
363 /* Auto-save automatically when this many characters have been typed
364 since the last time. */
366 static EMACS_INT auto_save_interval
;
368 /* Value of num_nonmacro_input_events as of last auto save. */
372 /* The command being executed by the command loop.
373 Commands may set this, and the value set will be copied into
374 current_kboard->Vlast_command instead of the actual command. */
375 Lisp_Object Vthis_command
;
377 /* This is like Vthis_command, except that commands never set it. */
378 Lisp_Object real_this_command
;
380 /* If the lookup of the command returns a binding, the original
381 command is stored in this-original-command. It is nil otherwise. */
382 Lisp_Object Vthis_original_command
;
384 /* The value of point when the last command was started. */
385 int last_point_position
;
387 /* The buffer that was current when the last command was started. */
388 Lisp_Object last_point_position_buffer
;
390 /* The window that was selected when the last command was started. */
391 Lisp_Object last_point_position_window
;
393 /* The frame in which the last input event occurred, or Qmacro if the
394 last event came from a macro. We use this to determine when to
395 generate switch-frame events. This may be cleared by functions
396 like Fselect_frame, to make sure that a switch-frame event is
397 generated by the next character. */
398 Lisp_Object internal_last_event_frame
;
400 /* A user-visible version of the above, intended to allow users to
401 figure out where the last event came from, if the event doesn't
402 carry that information itself (i.e. if it was a character). */
403 Lisp_Object Vlast_event_frame
;
405 /* The timestamp of the last input event we received from the X server.
406 X Windows wants this for selection ownership. */
407 unsigned long last_event_timestamp
;
409 Lisp_Object Qself_insert_command
;
410 Lisp_Object Qforward_char
;
411 Lisp_Object Qbackward_char
;
412 Lisp_Object Qundefined
;
413 Lisp_Object Qtimer_event_handler
;
415 /* read_key_sequence stores here the command definition of the
416 key sequence that it reads. */
417 Lisp_Object read_key_sequence_cmd
;
419 /* Echo unfinished commands after this many seconds of pause. */
420 Lisp_Object Vecho_keystrokes
;
422 /* Form to evaluate (if non-nil) when Emacs is started. */
423 Lisp_Object Vtop_level
;
425 /* User-supplied table to translate input characters. */
426 Lisp_Object Vkeyboard_translate_table
;
428 /* Keymap mapping ASCII function key sequences onto their preferred forms. */
429 extern Lisp_Object Vfunction_key_map
;
431 /* Another keymap that maps key sequences into key sequences.
432 This one takes precedence over ordinary definitions. */
433 extern Lisp_Object Vkey_translation_map
;
435 /* If non-nil, this implements the current input method. */
436 Lisp_Object Vinput_method_function
;
437 Lisp_Object Qinput_method_function
;
439 /* When we call Vinput_method_function,
440 this holds the echo area message that was just erased. */
441 Lisp_Object Vinput_method_previous_message
;
443 /* Non-nil means deactivate the mark at end of this command. */
444 Lisp_Object Vdeactivate_mark
;
446 /* Menu bar specified in Lucid Emacs fashion. */
448 Lisp_Object Vlucid_menu_bar_dirty_flag
;
449 Lisp_Object Qrecompute_lucid_menubar
, Qactivate_menubar_hook
;
451 Lisp_Object Qecho_area_clear_hook
;
453 /* Hooks to run before and after each command. */
454 Lisp_Object Qpre_command_hook
, Vpre_command_hook
;
455 Lisp_Object Qpost_command_hook
, Vpost_command_hook
;
456 Lisp_Object Qcommand_hook_internal
, Vcommand_hook_internal
;
458 /* List of deferred actions to be performed at a later time.
459 The precise format isn't relevant here; we just check whether it is nil. */
460 Lisp_Object Vdeferred_action_list
;
462 /* Function to call to handle deferred actions, when there are any. */
463 Lisp_Object Vdeferred_action_function
;
464 Lisp_Object Qdeferred_action_function
;
466 Lisp_Object Qinput_method_exit_on_first_char
;
467 Lisp_Object Qinput_method_use_echo_area
;
469 /* File in which we write all commands we read. */
472 /* Nonzero if input is available. */
475 /* 1 if should obey 0200 bit in input chars as "Meta", 2 if should
476 keep 0200 bit in input chars. 0 to ignore the 0200 bit. */
480 extern char *pending_malloc_warning
;
482 /* Circular buffer for pre-read keyboard input. */
484 static struct input_event kbd_buffer
[KBD_BUFFER_SIZE
];
486 /* Pointer to next available character in kbd_buffer.
487 If kbd_fetch_ptr == kbd_store_ptr, the buffer is empty.
488 This may be kbd_buffer + KBD_BUFFER_SIZE, meaning that the
489 next available char is in kbd_buffer[0]. */
490 static struct input_event
*kbd_fetch_ptr
;
492 /* Pointer to next place to store character in kbd_buffer. This
493 may be kbd_buffer + KBD_BUFFER_SIZE, meaning that the next
494 character should go in kbd_buffer[0]. */
495 static struct input_event
* volatile kbd_store_ptr
;
497 /* The above pair of variables forms a "queue empty" flag. When we
498 enqueue a non-hook event, we increment kbd_store_ptr. When we
499 dequeue a non-hook event, we increment kbd_fetch_ptr. We say that
500 there is input available iff the two pointers are not equal.
502 Why not just have a flag set and cleared by the enqueuing and
503 dequeuing functions? Such a flag could be screwed up by interrupts
504 at inopportune times. */
506 /* If this flag is non-nil, we check mouse_moved to see when the
507 mouse moves, and motion events will appear in the input stream.
508 Otherwise, mouse motion is ignored. */
509 Lisp_Object do_mouse_tracking
;
511 /* Symbols to head events. */
512 Lisp_Object Qmouse_movement
;
513 Lisp_Object Qscroll_bar_movement
;
514 Lisp_Object Qswitch_frame
;
515 Lisp_Object Qdelete_frame
;
516 Lisp_Object Qiconify_frame
;
517 Lisp_Object Qmake_frame_visible
;
518 Lisp_Object Qselect_window
;
519 Lisp_Object Qhelp_echo
;
522 Lisp_Object Qmouse_fixup_help_message
;
525 /* Symbols to denote kinds of events. */
526 Lisp_Object Qfunction_key
;
527 Lisp_Object Qmouse_click
;
528 #if defined (WINDOWSNT) || defined (MAC_OS)
529 Lisp_Object Qlanguage_change
;
531 Lisp_Object Qdrag_n_drop
;
532 Lisp_Object Qsave_session
;
534 Lisp_Object Qmac_apple_event
;
537 /* Lisp_Object Qmouse_movement; - also an event header */
539 /* Properties of event headers. */
540 Lisp_Object Qevent_kind
;
541 Lisp_Object Qevent_symbol_elements
;
543 /* menu item parts */
544 Lisp_Object Qmenu_alias
;
545 Lisp_Object Qmenu_enable
;
546 Lisp_Object QCenable
, QCvisible
, QChelp
, QCfilter
, QCkeys
, QCkey_sequence
;
547 Lisp_Object QCbutton
, QCtoggle
, QCradio
;
548 extern Lisp_Object Vdefine_key_rebound_commands
;
549 extern Lisp_Object Qmenu_item
;
551 /* An event header symbol HEAD may have a property named
552 Qevent_symbol_element_mask, which is of the form (BASE MODIFIERS);
553 BASE is the base, unmodified version of HEAD, and MODIFIERS is the
554 mask of modifiers applied to it. If present, this is used to help
555 speed up parse_modifiers. */
556 Lisp_Object Qevent_symbol_element_mask
;
558 /* An unmodified event header BASE may have a property named
559 Qmodifier_cache, which is an alist mapping modifier masks onto
560 modified versions of BASE. If present, this helps speed up
562 Lisp_Object Qmodifier_cache
;
564 /* Symbols to use for parts of windows. */
565 Lisp_Object Qmode_line
;
566 Lisp_Object Qvertical_line
;
567 Lisp_Object Qvertical_scroll_bar
;
568 Lisp_Object Qmenu_bar
;
569 extern Lisp_Object Qleft_margin
, Qright_margin
;
570 extern Lisp_Object Qleft_fringe
, Qright_fringe
;
571 extern Lisp_Object QCmap
;
573 Lisp_Object
recursive_edit_unwind (), command_loop ();
574 Lisp_Object
Fthis_command_keys ();
575 Lisp_Object Qextended_command_history
;
576 EMACS_TIME
timer_check ();
578 extern Lisp_Object Vhistory_length
, Vtranslation_table_for_input
;
580 extern char *x_get_keysym_name ();
582 static void record_menu_key ();
583 static int echo_length ();
585 Lisp_Object Qpolling_period
;
587 /* List of absolute timers. Appears in order of next scheduled event. */
588 Lisp_Object Vtimer_list
;
590 /* List of idle time timers. Appears in order of next scheduled event. */
591 Lisp_Object Vtimer_idle_list
;
593 /* Incremented whenever a timer is run. */
596 extern Lisp_Object Vprint_level
, Vprint_length
;
598 /* Address (if not 0) of EMACS_TIME to zero out if a SIGIO interrupt
600 EMACS_TIME
*input_available_clear_time
;
602 /* Nonzero means use SIGIO interrupts; zero means use CBREAK mode.
603 Default is 1 if INTERRUPT_INPUT is defined. */
606 /* Nonzero while interrupts are temporarily deferred during redisplay. */
607 int interrupts_deferred
;
609 /* Nonzero means use ^S/^Q for flow control. */
612 /* Allow m- file to inhibit use of FIONREAD. */
613 #ifdef BROKEN_FIONREAD
617 /* We are unable to use interrupts if FIONREAD is not available,
618 so flush SIGIO so we won't try. */
619 #if !defined (FIONREAD)
625 /* If we support a window system, turn on the code to poll periodically
626 to detect C-g. It isn't actually used when doing interrupt input. */
627 #if defined(HAVE_WINDOW_SYSTEM) && !defined(USE_ASYNC_EVENTS)
628 #define POLL_FOR_INPUT
631 /* After a command is executed, if point is moved into a region that
632 has specific properties (e.g. composition, display), we adjust
633 point to the boundary of the region. But, if a command sets this
634 variable to non-nil, we suppress this point adjustment. This
635 variable is set to nil before reading a command. */
637 Lisp_Object Vdisable_point_adjustment
;
639 /* If non-nil, always disable point adjustment. */
641 Lisp_Object Vglobal_disable_point_adjustment
;
643 /* The time when Emacs started being idle. */
645 static EMACS_TIME timer_idleness_start_time
;
647 /* After Emacs stops being idle, this saves the last value
648 of timer_idleness_start_time from when it was idle. */
650 static EMACS_TIME timer_last_idleness_start_time
;
653 /* Global variable declarations. */
655 /* Flags for readable_events. */
656 #define READABLE_EVENTS_DO_TIMERS_NOW (1 << 0)
657 #define READABLE_EVENTS_FILTER_EVENTS (1 << 1)
658 #define READABLE_EVENTS_IGNORE_SQUEEZABLES (1 << 2)
660 /* Function for init_keyboard to call with no args (if nonzero). */
661 void (*keyboard_init_hook
) ();
663 static int read_avail_input
P_ ((int));
664 static void get_input_pending
P_ ((int *, int));
665 static int readable_events
P_ ((int));
666 static Lisp_Object read_char_x_menu_prompt
P_ ((int, Lisp_Object
*,
667 Lisp_Object
, int *));
668 static Lisp_Object
read_char_x_menu_prompt ();
669 static Lisp_Object read_char_minibuf_menu_prompt
P_ ((int, int,
671 static Lisp_Object make_lispy_event
P_ ((struct input_event
*));
673 static Lisp_Object make_lispy_movement
P_ ((struct frame
*, Lisp_Object
,
674 enum scroll_bar_part
,
675 Lisp_Object
, Lisp_Object
,
678 static Lisp_Object modify_event_symbol
P_ ((int, unsigned, Lisp_Object
,
679 Lisp_Object
, char **,
680 Lisp_Object
*, unsigned));
681 static Lisp_Object make_lispy_switch_frame
P_ ((Lisp_Object
));
682 static int parse_solitary_modifier
P_ ((Lisp_Object
));
683 static int parse_solitary_modifier ();
684 static void save_getcjmp
P_ ((jmp_buf));
685 static void save_getcjmp ();
686 static void restore_getcjmp
P_ ((jmp_buf));
687 static Lisp_Object apply_modifiers
P_ ((int, Lisp_Object
));
688 static void clear_event
P_ ((struct input_event
*));
689 static void any_kboard_state
P_ ((void));
690 static SIGTYPE interrupt_signal
P_ ((int signalnum
));
691 static void timer_start_idle
P_ ((void));
692 static void timer_stop_idle
P_ ((void));
693 static void timer_resume_idle
P_ ((void));
695 /* Nonzero means don't try to suspend even if the operating system seems
697 static int cannot_suspend
;
699 extern Lisp_Object Qidentity
, Qonly
;
701 /* Install the string STR as the beginning of the string of echoing,
702 so that it serves as a prompt for the next character.
703 Also start echoing. */
709 current_kboard
->echo_string
= str
;
710 current_kboard
->echo_after_prompt
= SCHARS (str
);
714 /* Add C to the echo string, if echoing is going on.
715 C can be a character, which is printed prettily ("M-C-x" and all that
716 jazz), or a symbol, whose name is printed. */
722 if (current_kboard
->immediate_echo
)
724 int size
= KEY_DESCRIPTION_SIZE
+ 100;
725 char *buffer
= (char *) alloca (size
);
727 Lisp_Object echo_string
;
729 echo_string
= current_kboard
->echo_string
;
731 /* If someone has passed us a composite event, use its head symbol. */
736 ptr
= push_key_description (XINT (c
), ptr
, 1);
738 else if (SYMBOLP (c
))
740 Lisp_Object name
= SYMBOL_NAME (c
);
741 int nbytes
= SBYTES (name
);
743 if (size
- (ptr
- buffer
) < nbytes
)
745 int offset
= ptr
- buffer
;
746 size
= max (2 * size
, size
+ nbytes
);
747 buffer
= (char *) alloca (size
);
748 ptr
= buffer
+ offset
;
751 ptr
+= copy_text (SDATA (name
), ptr
, nbytes
,
752 STRING_MULTIBYTE (name
), 1);
755 if ((NILP (echo_string
) || SCHARS (echo_string
) == 0)
758 const char *text
= " (Type ? for further options)";
759 int len
= strlen (text
);
761 if (size
- (ptr
- buffer
) < len
)
763 int offset
= ptr
- buffer
;
765 buffer
= (char *) alloca (size
);
766 ptr
= buffer
+ offset
;
769 bcopy (text
, ptr
, len
);
773 /* Replace a dash from echo_dash with a space, otherwise
774 add a space at the end as a separator between keys. */
775 if (STRINGP (echo_string
)
776 && SCHARS (echo_string
) > 1)
778 Lisp_Object last_char
, prev_char
, idx
;
780 idx
= make_number (SCHARS (echo_string
) - 2);
781 prev_char
= Faref (echo_string
, idx
);
783 idx
= make_number (SCHARS (echo_string
) - 1);
784 last_char
= Faref (echo_string
, idx
);
786 /* We test PREV_CHAR to make sure this isn't the echoing
788 if (XINT (last_char
) == '-' && XINT (prev_char
) != ' ')
789 Faset (echo_string
, idx
, make_number (' '));
791 echo_string
= concat2 (echo_string
, build_string (" "));
794 current_kboard
->echo_string
795 = concat2 (echo_string
, make_string (buffer
, ptr
- buffer
));
801 /* Temporarily add a dash to the end of the echo string if it's not
802 empty, so that it serves as a mini-prompt for the very next character. */
807 /* Do nothing if not echoing at all. */
808 if (NILP (current_kboard
->echo_string
))
811 if (!current_kboard
->immediate_echo
812 && SCHARS (current_kboard
->echo_string
) == 0)
815 /* Do nothing if we just printed a prompt. */
816 if (current_kboard
->echo_after_prompt
817 == SCHARS (current_kboard
->echo_string
))
820 /* Do nothing if we have already put a dash at the end. */
821 if (SCHARS (current_kboard
->echo_string
) > 1)
823 Lisp_Object last_char
, prev_char
, idx
;
825 idx
= make_number (SCHARS (current_kboard
->echo_string
) - 2);
826 prev_char
= Faref (current_kboard
->echo_string
, idx
);
828 idx
= make_number (SCHARS (current_kboard
->echo_string
) - 1);
829 last_char
= Faref (current_kboard
->echo_string
, idx
);
831 if (XINT (last_char
) == '-' && XINT (prev_char
) != ' ')
835 /* Put a dash at the end of the buffer temporarily,
836 but make it go away when the next character is added. */
837 current_kboard
->echo_string
= concat2 (current_kboard
->echo_string
,
842 /* Display the current echo string, and begin echoing if not already
848 if (!current_kboard
->immediate_echo
)
851 current_kboard
->immediate_echo
= 1;
853 for (i
= 0; i
< this_command_key_count
; i
++)
857 /* Set before_command_echo_length to the value that would
858 have been saved before the start of this subcommand in
859 command_loop_1, if we had already been echoing then. */
860 if (i
== this_single_command_key_start
)
861 before_command_echo_length
= echo_length ();
863 c
= XVECTOR (this_command_keys
)->contents
[i
];
864 if (! (EVENT_HAS_PARAMETERS (c
)
865 && EQ (EVENT_HEAD_KIND (EVENT_HEAD (c
)), Qmouse_movement
)))
869 /* Set before_command_echo_length to the value that would
870 have been saved before the start of this subcommand in
871 command_loop_1, if we had already been echoing then. */
872 if (this_command_key_count
== this_single_command_key_start
)
873 before_command_echo_length
= echo_length ();
875 /* Put a dash at the end to invite the user to type more. */
880 message3_nolog (current_kboard
->echo_string
,
881 SBYTES (current_kboard
->echo_string
),
882 STRING_MULTIBYTE (current_kboard
->echo_string
));
885 /* Record in what buffer we echoed, and from which kboard. */
886 echo_message_buffer
= echo_area_buffer
[0];
887 echo_kboard
= current_kboard
;
889 if (waiting_for_input
&& !NILP (Vquit_flag
))
890 quit_throw_to_read_char ();
893 /* Turn off echoing, for the start of a new command. */
898 current_kboard
->immediate_echo
= 0;
899 current_kboard
->echo_after_prompt
= -1;
900 current_kboard
->echo_string
= Qnil
;
901 ok_to_echo_at_next_pause
= NULL
;
903 echo_message_buffer
= Qnil
;
906 /* Return the length of the current echo string. */
911 return (STRINGP (current_kboard
->echo_string
)
912 ? SCHARS (current_kboard
->echo_string
)
916 /* Truncate the current echo message to its first LEN chars.
917 This and echo_char get used by read_key_sequence when the user
918 switches frames while entering a key sequence. */
921 echo_truncate (nchars
)
924 if (STRINGP (current_kboard
->echo_string
))
925 current_kboard
->echo_string
926 = Fsubstring (current_kboard
->echo_string
,
927 make_number (0), make_number (nchars
));
928 truncate_echo_area (nchars
);
932 /* Functions for manipulating this_command_keys. */
934 add_command_key (key
)
937 #if 0 /* Not needed after we made Freset_this_command_lengths
938 do the job immediately. */
939 /* If reset-this-command-length was called recently, obey it now.
940 See the doc string of that function for an explanation of why. */
941 if (before_command_restore_flag
)
943 this_command_key_count
= before_command_key_count_1
;
944 if (this_command_key_count
< this_single_command_key_start
)
945 this_single_command_key_start
= this_command_key_count
;
946 echo_truncate (before_command_echo_length_1
);
947 before_command_restore_flag
= 0;
951 if (this_command_key_count
>= ASIZE (this_command_keys
))
952 this_command_keys
= larger_vector (this_command_keys
,
953 2 * ASIZE (this_command_keys
),
956 AREF (this_command_keys
, this_command_key_count
) = key
;
957 ++this_command_key_count
;
964 int count
= SPECPDL_INDEX ();
967 if (command_loop_level
> 0)
969 specbind (Qstandard_output
, Qt
);
970 specbind (Qstandard_input
, Qt
);
973 #ifdef HAVE_X_WINDOWS
974 /* The command loop has started an hourglass timer, so we have to
975 cancel it here, otherwise it will fire because the recursive edit
976 can take some time. Do not check for display_hourglass_p here,
977 because it could already be nil. */
981 /* This function may have been called from a debugger called from
982 within redisplay, for instance by Edebugging a function called
983 from fontification-functions. We want to allow redisplay in
984 the debugging session.
986 The recursive edit is left with a `(throw exit ...)'. The `exit'
987 tag is not caught anywhere in redisplay, i.e. when we leave the
988 recursive edit, the original redisplay leading to the recursive
989 edit will be unwound. The outcome should therefore be safe. */
990 specbind (Qinhibit_redisplay
, Qnil
);
993 val
= command_loop ();
995 Fsignal (Qquit
, Qnil
);
996 /* Handle throw from read_minibuf when using minibuffer
997 while it's active but we're in another window. */
999 Fsignal (Qerror
, Fcons (val
, Qnil
));
1001 return unbind_to (count
, Qnil
);
1004 /* When an auto-save happens, record the "time", and don't do again soon. */
1009 last_auto_save
= num_nonmacro_input_events
;
1012 /* Make an auto save happen as soon as possible at command level. */
1015 force_auto_save_soon ()
1017 last_auto_save
= - auto_save_interval
- 1;
1019 record_asynch_buffer_change ();
1022 DEFUN ("recursive-edit", Frecursive_edit
, Srecursive_edit
, 0, 0, "",
1023 doc
: /* Invoke the editor command loop recursively.
1024 To get out of the recursive edit, a command can do `(throw 'exit nil)';
1025 that tells this function to return.
1026 Alternatively, `(throw 'exit t)' makes this function signal an error.
1027 This function is called by the editor initialization to begin editing. */)
1030 int count
= SPECPDL_INDEX ();
1033 /* If we enter while input is blocked, don't lock up here.
1034 This may happen through the debugger during redisplay. */
1035 if (INPUT_BLOCKED_P
)
1038 command_loop_level
++;
1039 update_mode_lines
= 1;
1041 if (command_loop_level
1042 && current_buffer
!= XBUFFER (XWINDOW (selected_window
)->buffer
))
1043 buffer
= Fcurrent_buffer ();
1047 /* If we leave recursive_edit_1 below with a `throw' for instance,
1048 like it is done in the splash screen display, we have to
1049 make sure that we restore single_kboard as command_loop_1
1050 would have done if it were left normally. */
1051 record_unwind_protect (recursive_edit_unwind
,
1052 Fcons (buffer
, single_kboard
? Qt
: Qnil
));
1054 recursive_edit_1 ();
1055 return unbind_to (count
, Qnil
);
1059 recursive_edit_unwind (info
)
1062 if (BUFFERP (XCAR (info
)))
1063 Fset_buffer (XCAR (info
));
1065 if (NILP (XCDR (info
)))
1066 any_kboard_state ();
1068 single_kboard_state ();
1070 command_loop_level
--;
1071 update_mode_lines
= 1;
1080 #if 0 /* Theory: if there's anything in Vunread_command_events,
1081 it will right away be read by read_key_sequence,
1082 and then if we do switch KBOARDS, it will go into the side
1083 queue then. So we don't need to do anything special here -- rms. */
1084 if (CONSP (Vunread_command_events
))
1086 current_kboard
->kbd_queue
1087 = nconc2 (Vunread_command_events
, current_kboard
->kbd_queue
);
1088 current_kboard
->kbd_queue_has_data
= 1;
1090 Vunread_command_events
= Qnil
;
1096 /* Switch to the single-kboard state, making current_kboard
1097 the only KBOARD from which further input is accepted. */
1100 single_kboard_state ()
1107 /* If we're in single_kboard state for kboard KBOARD,
1111 not_single_kboard_state (kboard
)
1115 if (kboard
== current_kboard
)
1120 /* Maintain a stack of kboards, so other parts of Emacs
1121 can switch temporarily to the kboard of a given frame
1122 and then revert to the previous status. */
1127 struct kboard_stack
*next
;
1130 static struct kboard_stack
*kboard_stack
;
1133 push_frame_kboard (f
)
1137 struct kboard_stack
*p
1138 = (struct kboard_stack
*) xmalloc (sizeof (struct kboard_stack
));
1140 p
->next
= kboard_stack
;
1141 p
->kboard
= current_kboard
;
1144 current_kboard
= FRAME_KBOARD (f
);
1152 struct kboard_stack
*p
= kboard_stack
;
1153 current_kboard
= p
->kboard
;
1154 kboard_stack
= p
->next
;
1159 /* Handle errors that are not handled at inner levels
1160 by printing an error message and returning to the editor command loop. */
1166 Lisp_Object old_level
, old_length
;
1167 char macroerror
[50];
1169 #ifdef HAVE_X_WINDOWS
1170 if (display_hourglass_p
)
1171 cancel_hourglass ();
1174 if (!NILP (executing_kbd_macro
))
1176 if (executing_kbd_macro_iterations
== 1)
1177 sprintf (macroerror
, "After 1 kbd macro iteration: ");
1179 sprintf (macroerror
, "After %d kbd macro iterations: ",
1180 executing_kbd_macro_iterations
);
1185 Vstandard_output
= Qt
;
1186 Vstandard_input
= Qt
;
1187 Vexecuting_kbd_macro
= Qnil
;
1188 executing_kbd_macro
= Qnil
;
1189 current_kboard
->Vprefix_arg
= Qnil
;
1190 current_kboard
->Vlast_prefix_arg
= Qnil
;
1193 /* Avoid unquittable loop if data contains a circular list. */
1194 old_level
= Vprint_level
;
1195 old_length
= Vprint_length
;
1196 XSETFASTINT (Vprint_level
, 10);
1197 XSETFASTINT (Vprint_length
, 10);
1198 cmd_error_internal (data
, macroerror
);
1199 Vprint_level
= old_level
;
1200 Vprint_length
= old_length
;
1204 Vinhibit_quit
= Qnil
;
1206 if (command_loop_level
== 0 && minibuf_level
== 0)
1207 any_kboard_state ();
1210 return make_number (0);
1213 /* Take actions on handling an error. DATA is the data that describes
1216 CONTEXT is a C-string containing ASCII characters only which
1217 describes the context in which the error happened. If we need to
1218 generalize CONTEXT to allow multibyte characters, make it a Lisp
1222 cmd_error_internal (data
, context
)
1227 int kill_emacs_p
= 0;
1228 struct frame
*sf
= SELECTED_FRAME ();
1232 clear_message (1, 0);
1234 /* If the window system or terminal frame hasn't been initialized
1235 yet, or we're not interactive, it's best to dump this message out
1236 to stderr and exit. */
1237 if (!sf
->glyphs_initialized_p
1238 /* This is the case of the frame dumped with Emacs, when we're
1239 running under a window system. */
1240 || (!NILP (Vwindow_system
)
1241 && !inhibit_window_system
1242 && FRAME_TERMCAP_P (sf
))
1245 stream
= Qexternal_debugging_output
;
1251 message_log_maybe_newline ();
1256 /* The immediate context is not interesting for Quits,
1257 since they are asyncronous. */
1258 if (EQ (XCAR (data
), Qquit
))
1259 Vsignaling_function
= Qnil
;
1261 print_error_message (data
, stream
, context
, Vsignaling_function
);
1263 Vsignaling_function
= Qnil
;
1265 /* If the window system or terminal frame hasn't been initialized
1266 yet, or we're in -batch mode, this error should cause Emacs to exit. */
1270 Fkill_emacs (make_number (-1));
1274 Lisp_Object
command_loop_1 ();
1275 Lisp_Object
command_loop_2 ();
1276 Lisp_Object
top_level_1 ();
1278 /* Entry to editor-command-loop.
1279 This level has the catches for exiting/returning to editor command loop.
1280 It returns nil to exit recursive edit, t to abort it. */
1285 if (command_loop_level
> 0 || minibuf_level
> 0)
1288 val
= internal_catch (Qexit
, command_loop_2
, Qnil
);
1289 executing_kbd_macro
= Qnil
;
1295 internal_catch (Qtop_level
, top_level_1
, Qnil
);
1296 /* Reset single_kboard in case top-level set it while
1297 evaluating an -f option, or we are stuck there for some
1299 any_kboard_state ();
1300 internal_catch (Qtop_level
, command_loop_2
, Qnil
);
1301 executing_kbd_macro
= Qnil
;
1303 /* End of file in -batch run causes exit here. */
1309 /* Here we catch errors in execution of commands within the
1310 editing loop, and reenter the editing loop.
1311 When there is an error, cmd_error runs and returns a non-nil
1312 value to us. A value of nil means that command_loop_1 itself
1313 returned due to end of file (or end of kbd macro). */
1318 register Lisp_Object val
;
1321 val
= internal_condition_case (command_loop_1
, Qerror
, cmd_error
);
1322 while (!NILP (val
));
1330 return Feval (Vtop_level
);
1336 /* On entry to the outer level, run the startup file */
1337 if (!NILP (Vtop_level
))
1338 internal_condition_case (top_level_2
, Qerror
, cmd_error
);
1339 else if (!NILP (Vpurify_flag
))
1340 message ("Bare impure Emacs (standard Lisp code not loaded)");
1342 message ("Bare Emacs (standard Lisp code not loaded)");
1346 DEFUN ("top-level", Ftop_level
, Stop_level
, 0, 0, "",
1347 doc
: /* Exit all recursive editing levels. */)
1350 #ifdef HAVE_X_WINDOWS
1351 if (display_hourglass_p
)
1352 cancel_hourglass ();
1355 /* Unblock input if we enter with input blocked. This may happen if
1356 redisplay traps e.g. during tool-bar update with input blocked. */
1357 while (INPUT_BLOCKED_P
)
1360 return Fthrow (Qtop_level
, Qnil
);
1363 DEFUN ("exit-recursive-edit", Fexit_recursive_edit
, Sexit_recursive_edit
, 0, 0, "",
1364 doc
: /* Exit from the innermost recursive edit or minibuffer. */)
1367 if (command_loop_level
> 0 || minibuf_level
> 0)
1368 Fthrow (Qexit
, Qnil
);
1370 error ("No recursive edit is in progress");
1374 DEFUN ("abort-recursive-edit", Fabort_recursive_edit
, Sabort_recursive_edit
, 0, 0, "",
1375 doc
: /* Abort the command that requested this recursive edit or minibuffer input. */)
1378 if (command_loop_level
> 0 || minibuf_level
> 0)
1381 error ("No recursive edit is in progress");
1385 /* This is the actual command reading loop,
1386 sans error-handling encapsulation. */
1388 static int read_key_sequence
P_ ((Lisp_Object
*, int, Lisp_Object
,
1390 void safe_run_hooks
P_ ((Lisp_Object
));
1391 static void adjust_point_for_property
P_ ((int, int));
1393 /* Cancel hourglass from protect_unwind.
1395 #ifdef HAVE_X_WINDOWS
1397 cancel_hourglass_unwind (arg
)
1400 cancel_hourglass ();
1411 Lisp_Object keybuf
[30];
1415 struct buffer
*prev_buffer
= NULL
;
1417 int was_locked
= single_kboard
;
1419 int already_adjusted
;
1421 current_kboard
->Vprefix_arg
= Qnil
;
1422 current_kboard
->Vlast_prefix_arg
= Qnil
;
1423 Vdeactivate_mark
= Qnil
;
1424 waiting_for_input
= 0;
1428 this_command_key_count
= 0;
1429 this_command_key_count_reset
= 0;
1430 this_single_command_key_start
= 0;
1432 if (NILP (Vmemory_full
))
1434 /* Make sure this hook runs after commands that get errors and
1435 throw to top level. */
1436 /* Note that the value cell will never directly contain nil
1437 if the symbol is a local variable. */
1438 if (!NILP (Vpost_command_hook
) && !NILP (Vrun_hooks
))
1439 safe_run_hooks (Qpost_command_hook
);
1441 /* If displaying a message, resize the echo area window to fit
1442 that message's size exactly. */
1443 if (!NILP (echo_area_buffer
[0]))
1444 resize_echo_area_exactly ();
1446 if (!NILP (Vdeferred_action_list
))
1447 safe_run_hooks (Qdeferred_action_function
);
1450 /* Do this after running Vpost_command_hook, for consistency. */
1451 current_kboard
->Vlast_command
= Vthis_command
;
1452 current_kboard
->Vreal_last_command
= real_this_command
;
1456 if (! FRAME_LIVE_P (XFRAME (selected_frame
)))
1459 /* Make sure the current window's buffer is selected. */
1460 if (XBUFFER (XWINDOW (selected_window
)->buffer
) != current_buffer
)
1461 set_buffer_internal (XBUFFER (XWINDOW (selected_window
)->buffer
));
1463 /* Display any malloc warning that just came out. Use while because
1464 displaying one warning can cause another. */
1466 while (pending_malloc_warning
)
1467 display_malloc_warning ();
1471 Vdeactivate_mark
= Qnil
;
1473 /* If minibuffer on and echo area in use,
1474 wait a short time and redraw minibuffer. */
1477 && !NILP (echo_area_buffer
[0])
1478 && EQ (minibuf_window
, echo_area_window
)
1479 && NUMBERP (Vminibuffer_message_timeout
))
1481 /* Bind inhibit-quit to t so that C-g gets read in
1482 rather than quitting back to the minibuffer. */
1483 int count
= SPECPDL_INDEX ();
1484 specbind (Qinhibit_quit
, Qt
);
1486 Fsit_for (Vminibuffer_message_timeout
, Qnil
, Qnil
);
1487 /* Clear the echo area. */
1489 safe_run_hooks (Qecho_area_clear_hook
);
1491 unbind_to (count
, Qnil
);
1493 /* If a C-g came in before, treat it as input now. */
1494 if (!NILP (Vquit_flag
))
1497 Vunread_command_events
= Fcons (make_number (quit_char
), Qnil
);
1502 alloca (0); /* Cause a garbage collection now */
1503 /* Since we can free the most stuff here. */
1504 #endif /* C_ALLOCA */
1507 /* Select the frame that the last event came from. Usually,
1508 switch-frame events will take care of this, but if some lisp
1509 code swallows a switch-frame event, we'll fix things up here.
1510 Is this a good idea? */
1511 if (FRAMEP (internal_last_event_frame
)
1512 && !EQ (internal_last_event_frame
, selected_frame
))
1513 Fselect_frame (internal_last_event_frame
);
1515 /* If it has changed current-menubar from previous value,
1516 really recompute the menubar from the value. */
1517 if (! NILP (Vlucid_menu_bar_dirty_flag
)
1518 && !NILP (Ffboundp (Qrecompute_lucid_menubar
)))
1519 call0 (Qrecompute_lucid_menubar
);
1521 before_command_key_count
= this_command_key_count
;
1522 before_command_echo_length
= echo_length ();
1524 Vthis_command
= Qnil
;
1525 real_this_command
= Qnil
;
1526 Vthis_original_command
= Qnil
;
1528 /* Read next key sequence; i gets its length. */
1529 i
= read_key_sequence (keybuf
, sizeof keybuf
/ sizeof keybuf
[0],
1532 /* A filter may have run while we were reading the input. */
1533 if (! FRAME_LIVE_P (XFRAME (selected_frame
)))
1535 if (XBUFFER (XWINDOW (selected_window
)->buffer
) != current_buffer
)
1536 set_buffer_internal (XBUFFER (XWINDOW (selected_window
)->buffer
));
1540 /* Now we have read a key sequence of length I,
1541 or else I is 0 and we found end of file. */
1543 if (i
== 0) /* End of file -- happens only in */
1544 return Qnil
; /* a kbd macro, at the end. */
1545 /* -1 means read_key_sequence got a menu that was rejected.
1546 Just loop around and read another command. */
1550 this_command_key_count
= 0;
1551 this_command_key_count_reset
= 0;
1552 this_single_command_key_start
= 0;
1556 last_command_char
= keybuf
[i
- 1];
1558 /* If the previous command tried to force a specific window-start,
1559 forget about that, in case this command moves point far away
1560 from that position. But also throw away beg_unchanged and
1561 end_unchanged information in that case, so that redisplay will
1562 update the whole window properly. */
1563 if (!NILP (XWINDOW (selected_window
)->force_start
))
1566 XWINDOW (selected_window
)->force_start
= Qnil
;
1567 b
= XBUFFER (XWINDOW (selected_window
)->buffer
);
1568 BUF_BEG_UNCHANGED (b
) = BUF_END_UNCHANGED (b
) = 0;
1571 cmd
= read_key_sequence_cmd
;
1572 if (!NILP (Vexecuting_kbd_macro
))
1574 if (!NILP (Vquit_flag
))
1576 Vexecuting_kbd_macro
= Qt
;
1577 QUIT
; /* Make some noise. */
1578 /* Will return since macro now empty. */
1582 /* Do redisplay processing after this command except in special
1583 cases identified below. */
1584 prev_buffer
= current_buffer
;
1585 prev_modiff
= MODIFF
;
1586 last_point_position
= PT
;
1587 last_point_position_window
= selected_window
;
1588 XSETBUFFER (last_point_position_buffer
, prev_buffer
);
1590 /* By default, we adjust point to a boundary of a region that
1591 has such a property that should be treated intangible
1592 (e.g. composition, display). But, some commands will set
1593 this variable differently. */
1594 Vdisable_point_adjustment
= Qnil
;
1596 /* Process filters and timers may have messed with deactivate-mark.
1597 reset it before we execute the command. */
1598 Vdeactivate_mark
= Qnil
;
1600 /* Remap command through active keymaps */
1601 Vthis_original_command
= cmd
;
1605 if (cmd1
= Fcommand_remapping (cmd
), !NILP (cmd1
))
1609 /* Execute the command. */
1611 Vthis_command
= cmd
;
1612 real_this_command
= cmd
;
1613 /* Note that the value cell will never directly contain nil
1614 if the symbol is a local variable. */
1615 if (!NILP (Vpre_command_hook
) && !NILP (Vrun_hooks
))
1616 safe_run_hooks (Qpre_command_hook
);
1618 already_adjusted
= 0;
1620 if (NILP (Vthis_command
))
1622 /* nil means key is undefined. */
1623 Lisp_Object keys
= Fvector (i
, keybuf
);
1624 keys
= Fkey_description (keys
, Qnil
);
1626 message_with_string ("%s is undefined", keys
, 0);
1627 current_kboard
->defining_kbd_macro
= Qnil
;
1628 update_mode_lines
= 1;
1629 current_kboard
->Vprefix_arg
= Qnil
;
1633 if (NILP (current_kboard
->Vprefix_arg
) && ! no_direct
)
1635 /* In case we jump to directly_done. */
1636 Vcurrent_prefix_arg
= current_kboard
->Vprefix_arg
;
1638 /* Recognize some common commands in common situations and
1639 do them directly. */
1640 if (EQ (Vthis_command
, Qforward_char
) && PT
< ZV
)
1642 struct Lisp_Char_Table
*dp
1643 = window_display_table (XWINDOW (selected_window
));
1644 lose
= FETCH_CHAR (PT_BYTE
);
1646 if (! NILP (Vpost_command_hook
))
1647 /* Put this before calling adjust_point_for_property
1648 so it will only get called once in any case. */
1650 if (current_buffer
== prev_buffer
1651 && last_point_position
!= PT
1652 && NILP (Vdisable_point_adjustment
)
1653 && NILP (Vglobal_disable_point_adjustment
))
1654 adjust_point_for_property (last_point_position
, 0);
1655 already_adjusted
= 1;
1656 if (PT
== last_point_position
+ 1
1658 ? (VECTORP (DISP_CHAR_VECTOR (dp
, lose
))
1659 ? XVECTOR (DISP_CHAR_VECTOR (dp
, lose
))->size
== 1
1660 : (NILP (DISP_CHAR_VECTOR (dp
, lose
))
1661 && (lose
>= 0x20 && lose
< 0x7f)))
1662 : (lose
>= 0x20 && lose
< 0x7f))
1663 /* To extract the case of continuation on
1664 wide-column characters. */
1665 && ASCII_BYTE_P (lose
)
1666 && (XFASTINT (XWINDOW (selected_window
)->last_modified
)
1668 && (XFASTINT (XWINDOW (selected_window
)->last_overlay_modified
)
1670 && (XFASTINT (XWINDOW (selected_window
)->last_point
)
1672 && !windows_or_buffers_changed
1673 && EQ (current_buffer
->selective_display
, Qnil
)
1674 && !detect_input_pending ()
1675 && NILP (XWINDOW (selected_window
)->column_number_displayed
)
1676 && NILP (Vexecuting_kbd_macro
))
1677 direct_output_forward_char (1);
1680 else if (EQ (Vthis_command
, Qbackward_char
) && PT
> BEGV
)
1682 struct Lisp_Char_Table
*dp
1683 = window_display_table (XWINDOW (selected_window
));
1685 lose
= FETCH_CHAR (PT_BYTE
);
1686 if (! NILP (Vpost_command_hook
))
1688 if (current_buffer
== prev_buffer
1689 && last_point_position
!= PT
1690 && NILP (Vdisable_point_adjustment
)
1691 && NILP (Vglobal_disable_point_adjustment
))
1692 adjust_point_for_property (last_point_position
, 0);
1693 already_adjusted
= 1;
1694 if (PT
== last_point_position
- 1
1696 ? (VECTORP (DISP_CHAR_VECTOR (dp
, lose
))
1697 ? XVECTOR (DISP_CHAR_VECTOR (dp
, lose
))->size
== 1
1698 : (NILP (DISP_CHAR_VECTOR (dp
, lose
))
1699 && (lose
>= 0x20 && lose
< 0x7f)))
1700 : (lose
>= 0x20 && lose
< 0x7f))
1701 && (XFASTINT (XWINDOW (selected_window
)->last_modified
)
1703 && (XFASTINT (XWINDOW (selected_window
)->last_overlay_modified
)
1705 && (XFASTINT (XWINDOW (selected_window
)->last_point
)
1707 && !windows_or_buffers_changed
1708 && EQ (current_buffer
->selective_display
, Qnil
)
1709 && !detect_input_pending ()
1710 && NILP (XWINDOW (selected_window
)->column_number_displayed
)
1711 && NILP (Vexecuting_kbd_macro
))
1712 direct_output_forward_char (-1);
1715 else if (EQ (Vthis_command
, Qself_insert_command
)
1716 /* Try this optimization only on char keystrokes. */
1717 && NATNUMP (last_command_char
)
1718 && CHAR_VALID_P (XFASTINT (last_command_char
), 0))
1721 = translate_char (Vtranslation_table_for_input
,
1722 XFASTINT (last_command_char
));
1724 if (NILP (Vexecuting_kbd_macro
)
1725 && !EQ (minibuf_window
, selected_window
))
1727 if (!nonundocount
|| nonundocount
>= 20)
1735 lose
= ((XFASTINT (XWINDOW (selected_window
)->last_modified
)
1737 || (XFASTINT (XWINDOW (selected_window
)->last_overlay_modified
)
1739 || (XFASTINT (XWINDOW (selected_window
)->last_point
)
1741 || MODIFF
<= SAVE_MODIFF
1742 || windows_or_buffers_changed
1743 || !EQ (current_buffer
->selective_display
, Qnil
)
1744 || detect_input_pending ()
1745 || !NILP (XWINDOW (selected_window
)->column_number_displayed
)
1746 || !NILP (Vexecuting_kbd_macro
));
1748 value
= internal_self_insert (c
, 0);
1753 if (! NILP (Vpost_command_hook
))
1754 /* Put this before calling adjust_point_for_property
1755 so it will only get called once in any case. */
1758 /* VALUE == 1 when AFTER-CHANGE functions are
1759 installed which is the case most of the time
1760 because FONT-LOCK installs one. */
1761 if (!lose
&& !value
)
1762 direct_output_for_insert (c
);
1767 /* Here for a command that isn't executed directly */
1770 #ifdef HAVE_X_WINDOWS
1771 int scount
= SPECPDL_INDEX ();
1773 if (display_hourglass_p
1774 && NILP (Vexecuting_kbd_macro
))
1776 record_unwind_protect (cancel_hourglass_unwind
, Qnil
);
1782 if (NILP (current_kboard
->Vprefix_arg
))
1784 Fcommand_execute (Vthis_command
, Qnil
, Qnil
, Qnil
);
1786 #ifdef HAVE_X_WINDOWS
1787 /* Do not check display_hourglass_p here, because
1788 Fcommand_execute could change it, but we should cancel
1789 hourglass cursor anyway.
1790 But don't cancel the hourglass within a macro
1791 just because a command in the macro finishes. */
1792 if (NILP (Vexecuting_kbd_macro
))
1793 unbind_to (scount
, Qnil
);
1798 current_kboard
->Vlast_prefix_arg
= Vcurrent_prefix_arg
;
1800 /* Note that the value cell will never directly contain nil
1801 if the symbol is a local variable. */
1802 if (!NILP (Vpost_command_hook
) && !NILP (Vrun_hooks
))
1803 safe_run_hooks (Qpost_command_hook
);
1805 /* If displaying a message, resize the echo area window to fit
1806 that message's size exactly. */
1807 if (!NILP (echo_area_buffer
[0]))
1808 resize_echo_area_exactly ();
1810 if (!NILP (Vdeferred_action_list
))
1811 safe_run_hooks (Qdeferred_action_function
);
1813 /* If there is a prefix argument,
1814 1) We don't want Vlast_command to be ``universal-argument''
1815 (that would be dumb), so don't set Vlast_command,
1816 2) we want to leave echoing on so that the prefix will be
1817 echoed as part of this key sequence, so don't call
1819 3) we want to leave this_command_key_count non-zero, so that
1820 read_char will realize that it is re-reading a character, and
1821 not echo it a second time.
1823 If the command didn't actually create a prefix arg,
1824 but is merely a frame event that is transparent to prefix args,
1825 then the above doesn't apply. */
1826 if (NILP (current_kboard
->Vprefix_arg
) || CONSP (last_command_char
))
1828 current_kboard
->Vlast_command
= Vthis_command
;
1829 current_kboard
->Vreal_last_command
= real_this_command
;
1831 this_command_key_count
= 0;
1832 this_command_key_count_reset
= 0;
1833 this_single_command_key_start
= 0;
1836 if (!NILP (current_buffer
->mark_active
) && !NILP (Vrun_hooks
))
1838 /* Setting transient-mark-mode to `only' is a way of
1839 turning it on for just one command. */
1841 if (EQ (Vtransient_mark_mode
, Qidentity
))
1842 Vtransient_mark_mode
= Qnil
;
1843 if (EQ (Vtransient_mark_mode
, Qonly
))
1844 Vtransient_mark_mode
= Qidentity
;
1846 if (!NILP (Vdeactivate_mark
) && !NILP (Vtransient_mark_mode
))
1848 /* We could also call `deactivate'mark'. */
1849 if (EQ (Vtransient_mark_mode
, Qlambda
))
1850 Vtransient_mark_mode
= Qnil
;
1853 current_buffer
->mark_active
= Qnil
;
1854 call1 (Vrun_hooks
, intern ("deactivate-mark-hook"));
1857 else if (current_buffer
!= prev_buffer
|| MODIFF
!= prev_modiff
)
1858 call1 (Vrun_hooks
, intern ("activate-mark-hook"));
1863 if (current_buffer
== prev_buffer
1864 && last_point_position
!= PT
1865 && NILP (Vdisable_point_adjustment
)
1866 && NILP (Vglobal_disable_point_adjustment
)
1867 && !already_adjusted
)
1868 adjust_point_for_property (last_point_position
, MODIFF
!= prev_modiff
);
1870 /* Install chars successfully executed in kbd macro. */
1872 if (!NILP (current_kboard
->defining_kbd_macro
)
1873 && NILP (current_kboard
->Vprefix_arg
))
1874 finalize_kbd_macro_chars ();
1878 any_kboard_state ();
1883 extern Lisp_Object Qcomposition
, Qdisplay
;
1885 /* Adjust point to a boundary of a region that has such a property
1886 that should be treated intangible. For the moment, we check
1887 `composition', `display' and `invisible' properties.
1888 LAST_PT is the last position of point. */
1890 extern Lisp_Object Qafter_string
, Qbefore_string
;
1891 extern Lisp_Object get_pos_property
P_ ((Lisp_Object
, Lisp_Object
, Lisp_Object
));
1894 adjust_point_for_property (last_pt
, modified
)
1899 Lisp_Object val
, overlay
, tmp
;
1900 int check_composition
= 1, check_display
= 1, check_invisible
= 1;
1903 /* FIXME: cycling is probably not necessary because these properties
1904 can't be usefully combined anyway. */
1905 while (check_composition
|| check_display
|| check_invisible
)
1907 if (check_composition
1908 && PT
> BEGV
&& PT
< ZV
1909 && get_property_and_range (PT
, Qcomposition
, &val
, &beg
, &end
, Qnil
)
1910 && COMPOSITION_VALID_P (beg
, end
, val
)
1911 && beg
< PT
/* && end > PT <- It's always the case. */
1912 && (last_pt
<= beg
|| last_pt
>= end
))
1915 SET_PT (PT
< last_pt
? beg
: end
);
1916 check_display
= check_invisible
= 1;
1918 check_composition
= 0;
1920 && PT
> BEGV
&& PT
< ZV
1921 && !NILP (val
= get_char_property_and_overlay
1922 (make_number (PT
), Qdisplay
, Qnil
, &overlay
))
1923 && display_prop_intangible_p (val
)
1924 && (!OVERLAYP (overlay
)
1925 ? get_property_and_range (PT
, Qdisplay
, &val
, &beg
, &end
, Qnil
)
1926 : (beg
= OVERLAY_POSITION (OVERLAY_START (overlay
)),
1927 end
= OVERLAY_POSITION (OVERLAY_END (overlay
))))
1928 && (beg
< PT
/* && end > PT <- It's always the case. */
1929 || (beg
<= PT
&& STRINGP (val
) && SCHARS (val
) == 0)))
1932 SET_PT (PT
< last_pt
1933 ? (STRINGP (val
) && SCHARS (val
) == 0 ? beg
- 1 : beg
)
1935 check_composition
= check_invisible
= 1;
1938 if (check_invisible
&& PT
> BEGV
&& PT
< ZV
)
1940 int inv
, ellipsis
= 0;
1943 /* Find boundaries `beg' and `end' of the invisible area, if any. */
1945 && !NILP (val
= get_char_property_and_overlay
1946 (make_number (end
), Qinvisible
, Qnil
, &overlay
))
1947 && (inv
= TEXT_PROP_MEANS_INVISIBLE (val
)))
1949 ellipsis
= ellipsis
|| inv
> 1
1950 || (OVERLAYP (overlay
)
1951 && (!NILP (Foverlay_get (overlay
, Qafter_string
))
1952 || !NILP (Foverlay_get (overlay
, Qbefore_string
))));
1953 tmp
= Fnext_single_char_property_change
1954 (make_number (end
), Qinvisible
, Qnil
, Qnil
);
1955 end
= NATNUMP (tmp
) ? XFASTINT (tmp
) : ZV
;
1958 && !NILP (val
= get_char_property_and_overlay
1959 (make_number (beg
- 1), Qinvisible
, Qnil
, &overlay
))
1960 && (inv
= TEXT_PROP_MEANS_INVISIBLE (val
)))
1962 ellipsis
= ellipsis
|| inv
> 1
1963 || (OVERLAYP (overlay
)
1964 && (!NILP (Foverlay_get (overlay
, Qafter_string
))
1965 || !NILP (Foverlay_get (overlay
, Qbefore_string
))));
1966 tmp
= Fprevious_single_char_property_change
1967 (make_number (beg
), Qinvisible
, Qnil
, Qnil
);
1968 beg
= NATNUMP (tmp
) ? XFASTINT (tmp
) : BEGV
;
1971 /* Move away from the inside area. */
1972 if (beg
< PT
&& end
> PT
)
1974 SET_PT ((orig_pt
== PT
&& (last_pt
< beg
|| last_pt
> end
))
1975 /* We haven't moved yet (so we don't need to fear
1976 infinite-looping) and we were outside the range
1977 before (so either end of the range still corresponds
1978 to a move in the right direction): pretend we moved
1979 less than we actually did, so that we still have
1980 more freedom below in choosing which end of the range
1982 ? (orig_pt
= -1, PT
< last_pt
? end
: beg
)
1983 /* We either have moved already or the last point
1984 was already in the range: we don't get to choose
1985 which end of the range we have to go to. */
1986 : (PT
< last_pt
? beg
: end
));
1987 check_composition
= check_display
= 1;
1989 #if 0 /* This assertion isn't correct, because SET_PT may end up setting
1990 the point to something other than its argument, due to
1991 point-motion hooks, intangibility, etc. */
1992 xassert (PT
== beg
|| PT
== end
);
1995 /* Pretend the area doesn't exist if the buffer is not
1997 if (!modified
&& !ellipsis
&& beg
< end
)
1999 if (last_pt
== beg
&& PT
== end
&& end
< ZV
)
2000 (check_composition
= check_display
= 1, SET_PT (end
+ 1));
2001 else if (last_pt
== end
&& PT
== beg
&& beg
> BEGV
)
2002 (check_composition
= check_display
= 1, SET_PT (beg
- 1));
2003 else if (PT
== ((PT
< last_pt
) ? beg
: end
))
2004 /* We've already moved as far as we can. Trying to go
2005 to the other end would mean moving backwards and thus
2006 could lead to an infinite loop. */
2008 else if (val
= get_pos_property (make_number (PT
),
2010 TEXT_PROP_MEANS_INVISIBLE (val
)
2011 && (val
= get_pos_property
2012 (make_number (PT
== beg
? end
: beg
),
2014 !TEXT_PROP_MEANS_INVISIBLE (val
)))
2015 (check_composition
= check_display
= 1,
2016 SET_PT (PT
== beg
? end
: beg
));
2019 check_invisible
= 0;
2023 /* Subroutine for safe_run_hooks: run the hook HOOK. */
2026 safe_run_hooks_1 (hook
)
2029 return call1 (Vrun_hooks
, Vinhibit_quit
);
2032 /* Subroutine for safe_run_hooks: handle an error by clearing out the hook. */
2035 safe_run_hooks_error (data
)
2038 Lisp_Object args
[3];
2039 args
[0] = build_string ("Error in %s: %s");
2040 args
[1] = Vinhibit_quit
;
2043 return Fset (Vinhibit_quit
, Qnil
);
2046 /* If we get an error while running the hook, cause the hook variable
2047 to be nil. Also inhibit quits, so that C-g won't cause the hook
2048 to mysteriously evaporate. */
2051 safe_run_hooks (hook
)
2054 int count
= SPECPDL_INDEX ();
2055 specbind (Qinhibit_quit
, hook
);
2057 internal_condition_case (safe_run_hooks_1
, Qt
, safe_run_hooks_error
);
2059 unbind_to (count
, Qnil
);
2063 /* Number of seconds between polling for input. This is a Lisp
2064 variable that can be bound. */
2066 EMACS_INT polling_period
;
2068 /* Nonzero means polling for input is temporarily suppressed. */
2070 int poll_suppress_count
;
2072 /* Asynchronous timer for polling. */
2074 struct atimer
*poll_timer
;
2077 #ifdef POLL_FOR_INPUT
2079 /* Poll for input, so what we catch a C-g if it comes in. This
2080 function is called from x_make_frame_visible, see comment
2086 if (interrupt_input_blocked
== 0
2087 && !waiting_for_input
)
2088 read_avail_input (0);
2091 /* Timer callback function for poll_timer. TIMER is equal to
2095 poll_for_input (timer
)
2096 struct atimer
*timer
;
2098 if (poll_suppress_count
== 0)
2100 interrupt_input_pending
= 1;
2102 poll_for_input_1 ();
2106 #endif /* POLL_FOR_INPUT */
2108 /* Begin signals to poll for input, if they are appropriate.
2109 This function is called unconditionally from various places. */
2114 #ifdef POLL_FOR_INPUT
2115 if (read_socket_hook
&& !interrupt_input
)
2117 /* Turn alarm handling on unconditionally. It might have
2118 been turned off in process.c. */
2119 turn_on_atimers (1);
2121 /* If poll timer doesn't exist, are we need one with
2122 a different interval, start a new one. */
2123 if (poll_timer
== NULL
2124 || EMACS_SECS (poll_timer
->interval
) != polling_period
)
2126 EMACS_TIME interval
;
2129 cancel_atimer (poll_timer
);
2131 EMACS_SET_SECS_USECS (interval
, polling_period
, 0);
2132 poll_timer
= start_atimer (ATIMER_CONTINUOUS
, interval
,
2133 poll_for_input
, NULL
);
2136 /* Let the timer's callback function poll for input
2137 if this becomes zero. */
2138 --poll_suppress_count
;
2143 /* Nonzero if we are using polling to handle input asynchronously. */
2146 input_polling_used ()
2148 #ifdef POLL_FOR_INPUT
2149 return read_socket_hook
&& !interrupt_input
;
2155 /* Turn off polling. */
2160 #ifdef POLL_FOR_INPUT
2161 if (read_socket_hook
&& !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 the help-echo property of the character after the mouse pointer.
2247 Either show it in the echo area, or call show-help-function to display
2248 it by other means (maybe in a tooltip).
2250 If HELP is nil, that means clear the previous help echo.
2252 If HELP is a string, display that string. If HELP is a function,
2253 call it with OBJECT and POS as arguments; the function should
2254 return a help string or nil for none. For all other types of HELP,
2255 evaluate it to obtain a string.
2257 WINDOW is the window in which the help was generated, if any.
2258 It is nil if not in a window.
2260 If OBJECT is a buffer, POS is the position in the buffer where the
2261 `help-echo' text property was found.
2263 If OBJECT is an overlay, that overlay has a `help-echo' property,
2264 and POS is the position in the overlay's buffer under the mouse.
2266 If OBJECT is a string (an overlay string or a string displayed with
2267 the `display' property). POS is the position in that string under
2270 OK_TO_OVERWRITE_KEYSTROKE_ECHO non-zero means it's okay if the help
2271 echo overwrites a keystroke echo currently displayed in the echo
2274 Note: this function may only be called with HELP nil or a string
2275 from X code running asynchronously. */
2278 show_help_echo (help
, window
, object
, pos
, ok_to_overwrite_keystroke_echo
)
2279 Lisp_Object help
, window
, object
, pos
;
2280 int ok_to_overwrite_keystroke_echo
;
2282 if (!NILP (help
) && !STRINGP (help
))
2284 if (FUNCTIONP (help
))
2286 Lisp_Object args
[4];
2291 help
= safe_call (4, args
);
2294 help
= safe_eval (help
);
2296 if (!STRINGP (help
))
2301 if (!noninteractive
&& STRINGP (help
))
2302 help
= call1 (Qmouse_fixup_help_message
, help
);
2305 if (STRINGP (help
) || NILP (help
))
2307 if (!NILP (Vshow_help_function
))
2308 call1 (Vshow_help_function
, help
);
2309 else if (/* Don't overwrite minibuffer contents. */
2310 !MINI_WINDOW_P (XWINDOW (selected_window
))
2311 /* Don't overwrite a keystroke echo. */
2312 && (NILP (echo_message_buffer
)
2313 || ok_to_overwrite_keystroke_echo
)
2314 /* Don't overwrite a prompt. */
2315 && !cursor_in_echo_area
)
2319 int count
= SPECPDL_INDEX ();
2321 if (!help_echo_showing_p
)
2322 Vpre_help_message
= current_message ();
2324 specbind (Qmessage_truncate_lines
, Qt
);
2325 message3_nolog (help
, SBYTES (help
),
2326 STRING_MULTIBYTE (help
));
2327 unbind_to (count
, Qnil
);
2329 else if (STRINGP (Vpre_help_message
))
2331 message3_nolog (Vpre_help_message
,
2332 SBYTES (Vpre_help_message
),
2333 STRING_MULTIBYTE (Vpre_help_message
));
2334 Vpre_help_message
= Qnil
;
2340 help_echo_showing_p
= STRINGP (help
);
2346 /* Input of single characters from keyboard */
2348 Lisp_Object
print_help ();
2349 static Lisp_Object
kbd_buffer_get_event ();
2350 static void record_char ();
2353 static jmp_buf wrong_kboard_jmpbuf
;
2356 #define STOP_POLLING \
2357 do { if (! polling_stopped_here) stop_polling (); \
2358 polling_stopped_here = 1; } while (0)
2360 #define RESUME_POLLING \
2361 do { if (polling_stopped_here) start_polling (); \
2362 polling_stopped_here = 0; } while (0)
2364 /* read a character from the keyboard; call the redisplay if needed */
2365 /* commandflag 0 means do not do auto-saving, but do do redisplay.
2366 -1 means do not do redisplay, but do do autosaving.
2369 /* The arguments MAPS and NMAPS are for menu prompting.
2370 MAPS is an array of keymaps; NMAPS is the length of MAPS.
2372 PREV_EVENT is the previous input event, or nil if we are reading
2373 the first event of a key sequence (or not reading a key sequence).
2374 If PREV_EVENT is t, that is a "magic" value that says
2375 not to run input methods, but in other respects to act as if
2376 not reading a key sequence.
2378 If USED_MOUSE_MENU is non-null, then we set *USED_MOUSE_MENU to 1
2379 if we used a mouse menu to read the input, or zero otherwise. If
2380 USED_MOUSE_MENU is null, we don't dereference it.
2382 Value is t if we showed a menu and the user rejected it. */
2385 read_char (commandflag
, nmaps
, maps
, prev_event
, used_mouse_menu
)
2389 Lisp_Object prev_event
;
2390 int *used_mouse_menu
;
2392 volatile Lisp_Object c
;
2394 jmp_buf local_getcjmp
;
2396 volatile int key_already_recorded
= 0;
2397 Lisp_Object tem
, save
;
2398 volatile Lisp_Object previous_echo_area_message
;
2399 volatile Lisp_Object also_record
;
2400 volatile int reread
;
2401 struct gcpro gcpro1
, gcpro2
;
2402 int polling_stopped_here
= 0;
2406 #if 0 /* This was commented out as part of fixing echo for C-u left. */
2407 before_command_key_count
= this_command_key_count
;
2408 before_command_echo_length
= echo_length ();
2411 previous_echo_area_message
= Qnil
;
2413 GCPRO2 (c
, previous_echo_area_message
);
2418 if (CONSP (Vunread_post_input_method_events
))
2420 c
= XCAR (Vunread_post_input_method_events
);
2421 Vunread_post_input_method_events
2422 = XCDR (Vunread_post_input_method_events
);
2424 /* Undo what read_char_x_menu_prompt did when it unread
2425 additional keys returned by Fx_popup_menu. */
2427 && (SYMBOLP (XCAR (c
)) || INTEGERP (XCAR (c
)))
2435 if (unread_command_char
!= -1)
2437 XSETINT (c
, unread_command_char
);
2438 unread_command_char
= -1;
2444 if (CONSP (Vunread_command_events
))
2446 c
= XCAR (Vunread_command_events
);
2447 Vunread_command_events
= XCDR (Vunread_command_events
);
2449 /* Undo what read_char_x_menu_prompt did when it unread
2450 additional keys returned by Fx_popup_menu. */
2452 && EQ (XCDR (c
), Qdisabled
)
2453 && (SYMBOLP (XCAR (c
)) || INTEGERP (XCAR (c
))))
2456 /* If the queued event is something that used the mouse,
2457 set used_mouse_menu accordingly. */
2459 && (EQ (c
, Qtool_bar
) || EQ (c
, Qmenu_bar
)))
2460 *used_mouse_menu
= 1;
2463 goto reread_for_input_method
;
2466 if (CONSP (Vunread_input_method_events
))
2468 c
= XCAR (Vunread_input_method_events
);
2469 Vunread_input_method_events
= XCDR (Vunread_input_method_events
);
2471 /* Undo what read_char_x_menu_prompt did when it unread
2472 additional keys returned by Fx_popup_menu. */
2474 && (SYMBOLP (XCAR (c
)) || INTEGERP (XCAR (c
)))
2478 goto reread_for_input_method
;
2481 this_command_key_count_reset
= 0;
2483 if (!NILP (Vexecuting_kbd_macro
))
2485 /* We set this to Qmacro; since that's not a frame, nobody will
2486 try to switch frames on us, and the selected window will
2489 Since this event came from a macro, it would be misleading to
2490 leave internal_last_event_frame set to wherever the last
2491 real event came from. Normally, a switch-frame event selects
2492 internal_last_event_frame after each command is read, but
2493 events read from a macro should never cause a new frame to be
2495 Vlast_event_frame
= internal_last_event_frame
= Qmacro
;
2497 /* Exit the macro if we are at the end.
2498 Also, some things replace the macro with t
2499 to force an early exit. */
2500 if (EQ (Vexecuting_kbd_macro
, Qt
)
2501 || executing_kbd_macro_index
>= XFASTINT (Flength (Vexecuting_kbd_macro
)))
2507 c
= Faref (Vexecuting_kbd_macro
, make_number (executing_kbd_macro_index
));
2508 if (STRINGP (Vexecuting_kbd_macro
)
2509 && (XINT (c
) & 0x80) && (XUINT (c
) <= 0xff))
2510 XSETFASTINT (c
, CHAR_META
| (XINT (c
) & ~0x80));
2512 executing_kbd_macro_index
++;
2517 if (!NILP (unread_switch_frame
))
2519 c
= unread_switch_frame
;
2520 unread_switch_frame
= Qnil
;
2522 /* This event should make it into this_command_keys, and get echoed
2523 again, so we do not set `reread'. */
2527 /* if redisplay was requested */
2528 if (commandflag
>= 0)
2530 /* If there is pending input, process any events which are not
2531 user-visible, such as X selection_request events. */
2533 || detect_input_pending_run_timers (0))
2534 swallow_events (0); /* may clear input_pending */
2536 /* Redisplay if no pending input. */
2537 while (!input_pending
)
2539 if (help_echo_showing_p
&& !EQ (selected_window
, minibuf_window
))
2540 redisplay_preserve_echo_area (5);
2545 /* Normal case: no input arrived during redisplay. */
2548 /* Input arrived and pre-empted redisplay.
2549 Process any events which are not user-visible. */
2551 /* If that cleared input_pending, try again to redisplay. */
2555 /* Message turns off echoing unless more keystrokes turn it on again.
2557 The code in 20.x for the condition was
2559 1. echo_area_glyphs && *echo_area_glyphs
2560 2. && echo_area_glyphs != current_kboard->echobuf
2561 3. && ok_to_echo_at_next_pause != echo_area_glyphs
2563 (1) means there's a current message displayed
2565 (2) means it's not the message from echoing from the current
2568 (3) There's only one place in 20.x where ok_to_echo_at_next_pause
2569 is set to a non-null value. This is done in read_char and it is
2570 set to echo_area_glyphs after a call to echo_char. That means
2571 ok_to_echo_at_next_pause is either null or
2572 current_kboard->echobuf with the appropriate current_kboard at
2575 So, condition (3) means in clear text ok_to_echo_at_next_pause
2576 must be either null, or the current message isn't from echoing at
2577 all, or it's from echoing from a different kboard than the
2580 if (/* There currently is something in the echo area. */
2581 !NILP (echo_area_buffer
[0])
2582 && (/* And it's either not from echoing. */
2583 !EQ (echo_area_buffer
[0], echo_message_buffer
)
2584 /* Or it's an echo from a different kboard. */
2585 || echo_kboard
!= current_kboard
2586 /* Or we explicitly allow overwriting whatever there is. */
2587 || ok_to_echo_at_next_pause
== NULL
))
2592 /* Try reading a character via menu prompting in the minibuf.
2593 Try this before the sit-for, because the sit-for
2594 would do the wrong thing if we are supposed to do
2595 menu prompting. If EVENT_HAS_PARAMETERS then we are reading
2596 after a mouse event so don't try a minibuf menu. */
2598 if (nmaps
> 0 && INTERACTIVE
2599 && !NILP (prev_event
) && ! EVENT_HAS_PARAMETERS (prev_event
)
2600 /* Don't bring up a menu if we already have another event. */
2601 && NILP (Vunread_command_events
)
2602 && unread_command_char
< 0
2603 && !detect_input_pending_run_timers (0))
2605 c
= read_char_minibuf_menu_prompt (commandflag
, nmaps
, maps
);
2608 key_already_recorded
= 1;
2613 /* Make a longjmp point for quits to use, but don't alter getcjmp just yet.
2614 We will do that below, temporarily for short sections of code,
2615 when appropriate. local_getcjmp must be in effect
2616 around any call to sit_for or kbd_buffer_get_event;
2617 it *must not* be in effect when we call redisplay. */
2619 if (_setjmp (local_getcjmp
))
2621 /* We must have saved the outer value of getcjmp here,
2622 so restore it now. */
2623 restore_getcjmp (save_jump
);
2624 XSETINT (c
, quit_char
);
2625 internal_last_event_frame
= selected_frame
;
2626 Vlast_event_frame
= internal_last_event_frame
;
2627 /* If we report the quit char as an event,
2628 don't do so more than once. */
2629 if (!NILP (Vinhibit_quit
))
2634 KBOARD
*kb
= FRAME_KBOARD (XFRAME (selected_frame
));
2635 if (kb
!= current_kboard
)
2637 Lisp_Object link
= kb
->kbd_queue
;
2638 /* We shouldn't get here if we were in single-kboard mode! */
2643 while (CONSP (XCDR (link
)))
2645 if (!NILP (XCDR (link
)))
2649 kb
->kbd_queue
= Fcons (c
, Qnil
);
2651 XSETCDR (link
, Fcons (c
, Qnil
));
2652 kb
->kbd_queue_has_data
= 1;
2653 current_kboard
= kb
;
2654 /* This is going to exit from read_char
2655 so we had better get rid of this frame's stuff. */
2657 longjmp (wrong_kboard_jmpbuf
, 1);
2664 timer_start_idle ();
2666 /* If in middle of key sequence and minibuffer not active,
2667 start echoing if enough time elapses. */
2669 if (minibuf_level
== 0
2670 && !current_kboard
->immediate_echo
2671 && this_command_key_count
> 0
2673 && (FLOATP (Vecho_keystrokes
) || INTEGERP (Vecho_keystrokes
))
2674 && NILP (Fzerop (Vecho_keystrokes
))
2675 && (/* No message. */
2676 NILP (echo_area_buffer
[0])
2677 /* Or empty message. */
2678 || (BUF_BEG (XBUFFER (echo_area_buffer
[0]))
2679 == BUF_Z (XBUFFER (echo_area_buffer
[0])))
2680 /* Or already echoing from same kboard. */
2681 || (echo_kboard
&& ok_to_echo_at_next_pause
== echo_kboard
)
2682 /* Or not echoing before and echoing allowed. */
2683 || (!echo_kboard
&& ok_to_echo_at_next_pause
)))
2687 /* After a mouse event, start echoing right away.
2688 This is because we are probably about to display a menu,
2689 and we don't want to delay before doing so. */
2690 if (EVENT_HAS_PARAMETERS (prev_event
))
2695 double duration
= extract_float (Vecho_keystrokes
);
2696 sec
= (int) duration
;
2697 usec
= (duration
- sec
) * 1000000;
2698 save_getcjmp (save_jump
);
2699 restore_getcjmp (local_getcjmp
);
2700 tem0
= sit_for (sec
, usec
, 1, 1, 0);
2701 restore_getcjmp (save_jump
);
2703 && ! CONSP (Vunread_command_events
))
2708 /* Maybe auto save due to number of keystrokes. */
2710 if (commandflag
!= 0
2711 && auto_save_interval
> 0
2712 && num_nonmacro_input_events
- last_auto_save
> max (auto_save_interval
, 20)
2713 && !detect_input_pending_run_timers (0))
2715 Fdo_auto_save (Qnil
, Qnil
);
2716 /* Hooks can actually change some buffers in auto save. */
2720 /* Try reading using an X menu.
2721 This is never confused with reading using the minibuf
2722 because the recursive call of read_char in read_char_minibuf_menu_prompt
2723 does not pass on any keymaps. */
2725 if (nmaps
> 0 && INTERACTIVE
2726 && !NILP (prev_event
)
2727 && EVENT_HAS_PARAMETERS (prev_event
)
2728 && !EQ (XCAR (prev_event
), Qmenu_bar
)
2729 && !EQ (XCAR (prev_event
), Qtool_bar
)
2730 /* Don't bring up a menu if we already have another event. */
2731 && NILP (Vunread_command_events
)
2732 && unread_command_char
< 0)
2734 c
= read_char_x_menu_prompt (nmaps
, maps
, prev_event
, used_mouse_menu
);
2736 /* Now that we have read an event, Emacs is not idle. */
2742 /* Maybe autosave and/or garbage collect due to idleness. */
2744 if (INTERACTIVE
&& NILP (c
))
2746 int delay_level
, buffer_size
;
2748 /* Slow down auto saves logarithmically in size of current buffer,
2749 and garbage collect while we're at it. */
2750 if (! MINI_WINDOW_P (XWINDOW (selected_window
)))
2751 last_non_minibuf_size
= Z
- BEG
;
2752 buffer_size
= (last_non_minibuf_size
>> 8) + 1;
2754 while (buffer_size
> 64)
2755 delay_level
++, buffer_size
-= buffer_size
>> 2;
2756 if (delay_level
< 4) delay_level
= 4;
2757 /* delay_level is 4 for files under around 50k, 7 at 100k,
2758 9 at 200k, 11 at 300k, and 12 at 500k. It is 15 at 1 meg. */
2760 /* Auto save if enough time goes by without input. */
2761 if (commandflag
!= 0
2762 && num_nonmacro_input_events
> last_auto_save
2763 && INTEGERP (Vauto_save_timeout
)
2764 && XINT (Vauto_save_timeout
) > 0)
2768 save_getcjmp (save_jump
);
2769 restore_getcjmp (local_getcjmp
);
2770 tem0
= sit_for (delay_level
* XFASTINT (Vauto_save_timeout
) / 4,
2772 restore_getcjmp (save_jump
);
2775 && ! CONSP (Vunread_command_events
))
2777 Fdo_auto_save (Qnil
, Qnil
);
2779 /* If we have auto-saved and there is still no input
2780 available, garbage collect if there has been enough
2781 consing going on to make it worthwhile. */
2782 if (!detect_input_pending_run_timers (0)
2783 && consing_since_gc
> gc_cons_threshold
/ 2)
2784 Fgarbage_collect ();
2791 /* If this has become non-nil here, it has been set by a timer
2792 or sentinel or filter. */
2793 if (CONSP (Vunread_command_events
))
2795 c
= XCAR (Vunread_command_events
);
2796 Vunread_command_events
= XCDR (Vunread_command_events
);
2799 /* Read something from current KBOARD's side queue, if possible. */
2803 if (current_kboard
->kbd_queue_has_data
)
2805 if (!CONSP (current_kboard
->kbd_queue
))
2807 c
= XCAR (current_kboard
->kbd_queue
);
2808 current_kboard
->kbd_queue
2809 = XCDR (current_kboard
->kbd_queue
);
2810 if (NILP (current_kboard
->kbd_queue
))
2811 current_kboard
->kbd_queue_has_data
= 0;
2812 input_pending
= readable_events (0);
2813 if (EVENT_HAS_PARAMETERS (c
)
2814 && EQ (EVENT_HEAD_KIND (EVENT_HEAD (c
)), Qswitch_frame
))
2815 internal_last_event_frame
= XCAR (XCDR (c
));
2816 Vlast_event_frame
= internal_last_event_frame
;
2821 /* If current_kboard's side queue is empty check the other kboards.
2822 If one of them has data that we have not yet seen here,
2823 switch to it and process the data waiting for it.
2825 Note: if the events queued up for another kboard
2826 have already been seen here, and therefore are not a complete command,
2827 the kbd_queue_has_data field is 0, so we skip that kboard here.
2828 That's to avoid an infinite loop switching between kboards here. */
2829 if (NILP (c
) && !single_kboard
)
2832 for (kb
= all_kboards
; kb
; kb
= kb
->next_kboard
)
2833 if (kb
->kbd_queue_has_data
)
2835 current_kboard
= kb
;
2836 /* This is going to exit from read_char
2837 so we had better get rid of this frame's stuff. */
2839 longjmp (wrong_kboard_jmpbuf
, 1);
2848 /* Finally, we read from the main queue,
2849 and if that gives us something we can't use yet, we put it on the
2850 appropriate side queue and try again. */
2856 /* Actually read a character, waiting if necessary. */
2857 save_getcjmp (save_jump
);
2858 restore_getcjmp (local_getcjmp
);
2859 timer_start_idle ();
2860 c
= kbd_buffer_get_event (&kb
, used_mouse_menu
);
2861 restore_getcjmp (save_jump
);
2864 if (! NILP (c
) && (kb
!= current_kboard
))
2866 Lisp_Object link
= kb
->kbd_queue
;
2869 while (CONSP (XCDR (link
)))
2871 if (!NILP (XCDR (link
)))
2875 kb
->kbd_queue
= Fcons (c
, Qnil
);
2877 XSETCDR (link
, Fcons (c
, Qnil
));
2878 kb
->kbd_queue_has_data
= 1;
2882 current_kboard
= kb
;
2883 /* This is going to exit from read_char
2884 so we had better get rid of this frame's stuff. */
2886 longjmp (wrong_kboard_jmpbuf
, 1);
2891 /* Terminate Emacs in batch mode if at eof. */
2892 if (noninteractive
&& INTEGERP (c
) && XINT (c
) < 0)
2893 Fkill_emacs (make_number (1));
2897 /* Add in any extra modifiers, where appropriate. */
2898 if ((extra_keyboard_modifiers
& CHAR_CTL
)
2899 || ((extra_keyboard_modifiers
& 0177) < ' '
2900 && (extra_keyboard_modifiers
& 0177) != 0))
2901 XSETINT (c
, make_ctrl_char (XINT (c
)));
2903 /* Transfer any other modifier bits directly from
2904 extra_keyboard_modifiers to c. Ignore the actual character code
2905 in the low 16 bits of extra_keyboard_modifiers. */
2906 XSETINT (c
, XINT (c
) | (extra_keyboard_modifiers
& ~0xff7f & ~CHAR_CTL
));
2916 if (commandflag
>= 0
2917 && !input_pending
&& !detect_input_pending_run_timers (0))
2925 /* Buffer switch events are only for internal wakeups
2926 so don't show them to the user.
2927 Also, don't record a key if we already did. */
2928 if (BUFFERP (c
) || key_already_recorded
)
2931 /* Process special events within read_char
2932 and loop around to read another event. */
2935 tem
= access_keymap (get_keymap (Vspecial_event_map
, 0, 1), c
, 0, 0, 1);
2940 int was_locked
= single_kboard
;
2942 last_input_char
= c
;
2943 Fcommand_execute (tem
, Qnil
, Fvector (1, &last_input_char
), Qt
);
2945 if (CONSP (c
) && EQ (XCAR (c
), Qselect_window
))
2946 /* We stopped being idle for this event; undo that. This
2947 prevents automatic window selection (under
2948 mouse_autoselect_window from acting as a real input event, for
2949 example banishing the mouse under mouse-avoidance-mode. */
2950 timer_resume_idle ();
2952 /* Resume allowing input from any kboard, if that was true before. */
2954 any_kboard_state ();
2959 /* Handle things that only apply to characters. */
2962 /* If kbd_buffer_get_event gave us an EOF, return that. */
2966 if ((STRINGP (Vkeyboard_translate_table
)
2967 && SCHARS (Vkeyboard_translate_table
) > (unsigned) XFASTINT (c
))
2968 || (VECTORP (Vkeyboard_translate_table
)
2969 && XVECTOR (Vkeyboard_translate_table
)->size
> (unsigned) XFASTINT (c
))
2970 || CHAR_TABLE_P (Vkeyboard_translate_table
))
2973 d
= Faref (Vkeyboard_translate_table
, c
);
2974 /* nil in keyboard-translate-table means no translation. */
2980 /* If this event is a mouse click in the menu bar,
2981 return just menu-bar for now. Modify the mouse click event
2982 so we won't do this twice, then queue it up. */
2983 if (EVENT_HAS_PARAMETERS (c
)
2985 && CONSP (EVENT_START (c
))
2986 && CONSP (XCDR (EVENT_START (c
))))
2990 posn
= POSN_POSN (EVENT_START (c
));
2991 /* Handle menu-bar events:
2992 insert the dummy prefix event `menu-bar'. */
2993 if (EQ (posn
, Qmenu_bar
) || EQ (posn
, Qtool_bar
))
2995 /* Change menu-bar to (menu-bar) as the event "position". */
2996 POSN_SET_POSN (EVENT_START (c
), Fcons (posn
, Qnil
));
2999 Vunread_command_events
= Fcons (c
, Vunread_command_events
);
3004 /* Store these characters into recent_keys, the dribble file if any,
3005 and the keyboard macro being defined, if any. */
3007 if (! NILP (also_record
))
3008 record_char (also_record
);
3010 /* Wipe the echo area.
3011 But first, if we are about to use an input method,
3012 save the echo area contents for it to refer to. */
3014 && ! NILP (Vinput_method_function
)
3015 && (unsigned) XINT (c
) >= ' '
3016 && (unsigned) XINT (c
) != 127
3017 && (unsigned) XINT (c
) < 256)
3019 previous_echo_area_message
= Fcurrent_message ();
3020 Vinput_method_previous_message
= previous_echo_area_message
;
3023 /* Now wipe the echo area, except for help events which do their
3024 own stuff with the echo area. */
3026 || (!(EQ (Qhelp_echo
, XCAR (c
)))
3027 && !(EQ (Qswitch_frame
, XCAR (c
)))))
3029 if (!NILP (echo_area_buffer
[0]))
3030 safe_run_hooks (Qecho_area_clear_hook
);
3031 clear_message (1, 0);
3034 reread_for_input_method
:
3036 /* Pass this to the input method, if appropriate. */
3038 && ! NILP (Vinput_method_function
)
3039 /* Don't run the input method within a key sequence,
3040 after the first event of the key sequence. */
3041 && NILP (prev_event
)
3042 && (unsigned) XINT (c
) >= ' '
3043 && (unsigned) XINT (c
) != 127
3044 && (unsigned) XINT (c
) < 256)
3047 int key_count
, key_count_reset
;
3048 struct gcpro gcpro1
;
3049 int count
= SPECPDL_INDEX ();
3051 /* Save the echo status. */
3052 int saved_immediate_echo
= current_kboard
->immediate_echo
;
3053 struct kboard
*saved_ok_to_echo
= ok_to_echo_at_next_pause
;
3054 Lisp_Object saved_echo_string
= current_kboard
->echo_string
;
3055 int saved_echo_after_prompt
= current_kboard
->echo_after_prompt
;
3058 if (before_command_restore_flag
)
3060 this_command_key_count
= before_command_key_count_1
;
3061 if (this_command_key_count
< this_single_command_key_start
)
3062 this_single_command_key_start
= this_command_key_count
;
3063 echo_truncate (before_command_echo_length_1
);
3064 before_command_restore_flag
= 0;
3068 /* Save the this_command_keys status. */
3069 key_count
= this_command_key_count
;
3070 key_count_reset
= this_command_key_count_reset
;
3073 keys
= Fcopy_sequence (this_command_keys
);
3078 /* Clear out this_command_keys. */
3079 this_command_key_count
= 0;
3080 this_command_key_count_reset
= 0;
3082 /* Now wipe the echo area. */
3083 if (!NILP (echo_area_buffer
[0]))
3084 safe_run_hooks (Qecho_area_clear_hook
);
3085 clear_message (1, 0);
3088 /* If we are not reading a key sequence,
3089 never use the echo area. */
3092 specbind (Qinput_method_use_echo_area
, Qt
);
3095 /* Call the input method. */
3096 tem
= call1 (Vinput_method_function
, c
);
3098 tem
= unbind_to (count
, tem
);
3100 /* Restore the saved echoing state
3101 and this_command_keys state. */
3102 this_command_key_count
= key_count
;
3103 this_command_key_count_reset
= key_count_reset
;
3105 this_command_keys
= keys
;
3108 ok_to_echo_at_next_pause
= saved_ok_to_echo
;
3109 current_kboard
->echo_string
= saved_echo_string
;
3110 current_kboard
->echo_after_prompt
= saved_echo_after_prompt
;
3111 if (saved_immediate_echo
)
3116 /* The input method can return no events. */
3119 /* Bring back the previous message, if any. */
3120 if (! NILP (previous_echo_area_message
))
3121 message_with_string ("%s", previous_echo_area_message
, 0);
3124 /* It returned one event or more. */
3126 Vunread_post_input_method_events
3127 = nconc2 (XCDR (tem
), Vunread_post_input_method_events
);
3132 /* Display help if not echoing. */
3133 if (CONSP (c
) && EQ (XCAR (c
), Qhelp_echo
))
3135 /* (help-echo FRAME HELP WINDOW OBJECT POS). */
3136 Lisp_Object help
, object
, position
, window
, tem
;
3138 tem
= Fcdr (XCDR (c
));
3141 window
= Fcar (tem
);
3143 object
= Fcar (tem
);
3145 position
= Fcar (tem
);
3147 show_help_echo (help
, window
, object
, position
, 0);
3149 /* We stopped being idle for this event; undo that. */
3150 timer_resume_idle ();
3154 if (! reread
|| this_command_key_count
== 0
3155 || this_command_key_count_reset
)
3158 /* Don't echo mouse motion events. */
3159 if ((FLOATP (Vecho_keystrokes
) || INTEGERP (Vecho_keystrokes
))
3160 && NILP (Fzerop (Vecho_keystrokes
))
3161 && ! (EVENT_HAS_PARAMETERS (c
)
3162 && EQ (EVENT_HEAD_KIND (EVENT_HEAD (c
)), Qmouse_movement
)))
3165 if (! NILP (also_record
))
3166 echo_char (also_record
);
3167 /* Once we reread a character, echoing can happen
3168 the next time we pause to read a new one. */
3169 ok_to_echo_at_next_pause
= current_kboard
;
3172 /* Record this character as part of the current key. */
3173 add_command_key (c
);
3174 if (! NILP (also_record
))
3175 add_command_key (also_record
);
3178 last_input_char
= c
;
3181 /* Process the help character specially if enabled */
3182 if (!NILP (Vhelp_form
) && help_char_p (c
))
3185 count
= SPECPDL_INDEX ();
3187 record_unwind_protect (Fset_window_configuration
,
3188 Fcurrent_window_configuration (Qnil
));
3190 tem0
= Feval (Vhelp_form
);
3192 internal_with_output_to_temp_buffer ("*Help*", print_help
, tem0
);
3196 c
= read_char (0, 0, 0, Qnil
, 0);
3197 while (BUFFERP (c
));
3198 /* Remove the help from the frame */
3199 unbind_to (count
, Qnil
);
3202 if (EQ (c
, make_number (040)))
3206 c
= read_char (0, 0, 0, Qnil
, 0);
3207 while (BUFFERP (c
));
3216 /* Record a key that came from a mouse menu.
3217 Record it for echoing, for this-command-keys, and so on. */
3223 /* Wipe the echo area. */
3224 clear_message (1, 0);
3229 before_command_key_count
= this_command_key_count
;
3230 before_command_echo_length
= echo_length ();
3233 /* Don't echo mouse motion events. */
3234 if ((FLOATP (Vecho_keystrokes
) || INTEGERP (Vecho_keystrokes
))
3235 && NILP (Fzerop (Vecho_keystrokes
)))
3239 /* Once we reread a character, echoing can happen
3240 the next time we pause to read a new one. */
3241 ok_to_echo_at_next_pause
= 0;
3244 /* Record this character as part of the current key. */
3245 add_command_key (c
);
3247 /* Re-reading in the middle of a command */
3248 last_input_char
= c
;
3252 /* Return 1 if should recognize C as "the help character". */
3260 if (EQ (c
, Vhelp_char
))
3262 for (tail
= Vhelp_event_list
; CONSP (tail
); tail
= XCDR (tail
))
3263 if (EQ (c
, XCAR (tail
)))
3268 /* Record the input event C in various ways. */
3276 if (CONSP (c
) && (EQ (XCAR (c
), Qhelp_echo
) || EQ (XCAR (c
), Qmouse_movement
)))
3278 /* To avoid filling recent_keys with help-echo and mouse-movement
3279 events, we filter out repeated help-echo events, only store the
3280 first and last in a series of mouse-movement events, and don't
3281 store repeated help-echo events which are only separated by
3282 mouse-movement events. */
3284 Lisp_Object ev1
, ev2
, ev3
;
3287 if ((ix1
= recent_keys_index
- 1) < 0)
3288 ix1
= NUM_RECENT_KEYS
- 1;
3289 ev1
= AREF (recent_keys
, ix1
);
3291 if ((ix2
= ix1
- 1) < 0)
3292 ix2
= NUM_RECENT_KEYS
- 1;
3293 ev2
= AREF (recent_keys
, ix2
);
3295 if ((ix3
= ix2
- 1) < 0)
3296 ix3
= NUM_RECENT_KEYS
- 1;
3297 ev3
= AREF (recent_keys
, ix3
);
3299 if (EQ (XCAR (c
), Qhelp_echo
))
3301 /* Don't record `help-echo' in recent_keys unless it shows some help
3302 message, and a different help than the previously recorded
3304 Lisp_Object help
, last_help
;
3306 help
= Fcar_safe (Fcdr_safe (XCDR (c
)));
3307 if (!STRINGP (help
))
3309 else if (CONSP (ev1
) && EQ (XCAR (ev1
), Qhelp_echo
)
3310 && (last_help
= Fcar_safe (Fcdr_safe (XCDR (ev1
))), EQ (last_help
, help
)))
3312 else if (CONSP (ev1
) && EQ (XCAR (ev1
), Qmouse_movement
)
3313 && CONSP (ev2
) && EQ (XCAR (ev2
), Qhelp_echo
)
3314 && (last_help
= Fcar_safe (Fcdr_safe (XCDR (ev2
))), EQ (last_help
, help
)))
3316 else if (CONSP (ev1
) && EQ (XCAR (ev1
), Qmouse_movement
)
3317 && CONSP (ev2
) && EQ (XCAR (ev2
), Qmouse_movement
)
3318 && CONSP (ev3
) && EQ (XCAR (ev3
), Qhelp_echo
)
3319 && (last_help
= Fcar_safe (Fcdr_safe (XCDR (ev3
))), EQ (last_help
, help
)))
3322 else if (EQ (XCAR (c
), Qmouse_movement
))
3324 /* Only record one pair of `mouse-movement' on a window in recent_keys.
3325 So additional mouse movement events replace the last element. */
3326 Lisp_Object last_window
, window
;
3328 window
= Fcar_safe (Fcar_safe (XCDR (c
)));
3329 if (CONSP (ev1
) && EQ (XCAR (ev1
), Qmouse_movement
)
3330 && (last_window
= Fcar_safe (Fcar_safe (XCDR (ev1
))), EQ (last_window
, window
))
3331 && CONSP (ev2
) && EQ (XCAR (ev2
), Qmouse_movement
)
3332 && (last_window
= Fcar_safe (Fcar_safe (XCDR (ev2
))), EQ (last_window
, window
)))
3334 ASET (recent_keys
, ix1
, c
);
3340 store_kbd_macro_char (c
);
3345 ASET (recent_keys
, recent_keys_index
, c
);
3346 if (++recent_keys_index
>= NUM_RECENT_KEYS
)
3347 recent_keys_index
= 0;
3349 else if (recorded
< 0)
3351 /* We need to remove one or two events from recent_keys.
3352 To do this, we simply put nil at those events and move the
3353 recent_keys_index backwards over those events. Usually,
3354 users will never see those nil events, as they will be
3355 overwritten by the command keys entered to see recent_keys
3358 while (recorded
++ < 0 && total_keys
> 0)
3360 if (total_keys
< NUM_RECENT_KEYS
)
3362 if (--recent_keys_index
< 0)
3363 recent_keys_index
= NUM_RECENT_KEYS
- 1;
3364 ASET (recent_keys
, recent_keys_index
, Qnil
);
3368 num_nonmacro_input_events
++;
3370 /* Write c to the dribble file. If c is a lispy event, write
3371 the event's symbol to the dribble file, in <brackets>. Bleaugh.
3372 If you, dear reader, have a better idea, you've got the source. :-) */
3377 if (XUINT (c
) < 0x100)
3378 putc (XINT (c
), dribble
);
3380 fprintf (dribble
, " 0x%x", (int) XUINT (c
));
3384 Lisp_Object dribblee
;
3386 /* If it's a structured event, take the event header. */
3387 dribblee
= EVENT_HEAD (c
);
3389 if (SYMBOLP (dribblee
))
3391 putc ('<', dribble
);
3392 fwrite (SDATA (SYMBOL_NAME (dribblee
)), sizeof (char),
3393 SBYTES (SYMBOL_NAME (dribblee
)),
3395 putc ('>', dribble
);
3407 struct buffer
*old
= current_buffer
;
3408 Fprinc (object
, Qnil
);
3409 set_buffer_internal (XBUFFER (Vstandard_output
));
3410 call0 (intern ("help-mode"));
3411 set_buffer_internal (old
);
3415 /* Copy out or in the info on where C-g should throw to.
3416 This is used when running Lisp code from within get_char,
3417 in case get_char is called recursively.
3418 See read_process_output. */
3424 bcopy (getcjmp
, temp
, sizeof getcjmp
);
3428 restore_getcjmp (temp
)
3431 bcopy (temp
, getcjmp
, sizeof getcjmp
);
3436 /* Restore mouse tracking enablement. See Ftrack_mouse for the only use
3437 of this function. */
3440 tracking_off (old_value
)
3441 Lisp_Object old_value
;
3443 do_mouse_tracking
= old_value
;
3444 if (NILP (old_value
))
3446 /* Redisplay may have been preempted because there was input
3447 available, and it assumes it will be called again after the
3448 input has been processed. If the only input available was
3449 the sort that we have just disabled, then we need to call
3451 if (!readable_events (READABLE_EVENTS_DO_TIMERS_NOW
))
3453 redisplay_preserve_echo_area (6);
3454 get_input_pending (&input_pending
,
3455 READABLE_EVENTS_DO_TIMERS_NOW
);
3461 DEFUN ("track-mouse", Ftrack_mouse
, Strack_mouse
, 0, UNEVALLED
, 0,
3462 doc
: /* Evaluate BODY with mouse movement events enabled.
3463 Within a `track-mouse' form, mouse motion generates input events that
3464 you can read with `read-event'.
3465 Normally, mouse motion is ignored.
3466 usage: (track-mouse BODY ...) */)
3470 int count
= SPECPDL_INDEX ();
3473 record_unwind_protect (tracking_off
, do_mouse_tracking
);
3475 do_mouse_tracking
= Qt
;
3477 val
= Fprogn (args
);
3478 return unbind_to (count
, val
);
3481 /* If mouse has moved on some frame, return one of those frames.
3482 Return 0 otherwise. */
3487 Lisp_Object tail
, frame
;
3489 FOR_EACH_FRAME (tail
, frame
)
3491 if (XFRAME (frame
)->mouse_moved
)
3492 return XFRAME (frame
);
3498 #endif /* HAVE_MOUSE */
3500 /* Low level keyboard/mouse input.
3501 kbd_buffer_store_event places events in kbd_buffer, and
3502 kbd_buffer_get_event retrieves them. */
3504 /* Return true iff there are any events in the queue that read-char
3505 would return. If this returns false, a read-char would block. */
3507 readable_events (flags
)
3510 if (flags
& READABLE_EVENTS_DO_TIMERS_NOW
)
3513 /* If the buffer contains only FOCUS_IN_EVENT events, and
3514 READABLE_EVENTS_FILTER_EVENTS is set, report it as empty. */
3515 if (kbd_fetch_ptr
!= kbd_store_ptr
)
3517 if (flags
& (READABLE_EVENTS_FILTER_EVENTS
3518 #ifdef USE_TOOLKIT_SCROLL_BARS
3519 | READABLE_EVENTS_IGNORE_SQUEEZABLES
3523 struct input_event
*event
;
3525 event
= ((kbd_fetch_ptr
< kbd_buffer
+ KBD_BUFFER_SIZE
)
3532 #ifdef USE_TOOLKIT_SCROLL_BARS
3533 (flags
& READABLE_EVENTS_FILTER_EVENTS
) &&
3535 event
->kind
== FOCUS_IN_EVENT
)
3536 #ifdef USE_TOOLKIT_SCROLL_BARS
3537 && !((flags
& READABLE_EVENTS_IGNORE_SQUEEZABLES
)
3538 && event
->kind
== SCROLL_BAR_CLICK_EVENT
3539 && event
->part
== scroll_bar_handle
3540 && event
->modifiers
== 0)
3545 if (event
== kbd_buffer
+ KBD_BUFFER_SIZE
)
3548 while (event
!= kbd_store_ptr
);
3555 if (!(flags
& READABLE_EVENTS_IGNORE_SQUEEZABLES
)
3556 && !NILP (do_mouse_tracking
) && some_mouse_moved ())
3561 if (current_kboard
->kbd_queue_has_data
)
3567 for (kb
= all_kboards
; kb
; kb
= kb
->next_kboard
)
3568 if (kb
->kbd_queue_has_data
)
3574 /* Set this for debugging, to have a way to get out */
3579 event_to_kboard (event
)
3580 struct input_event
*event
;
3583 frame
= event
->frame_or_window
;
3585 frame
= XCAR (frame
);
3586 else if (WINDOWP (frame
))
3587 frame
= WINDOW_FRAME (XWINDOW (frame
));
3589 /* There are still some events that don't set this field.
3590 For now, just ignore the problem.
3591 Also ignore dead frames here. */
3592 if (!FRAMEP (frame
) || !FRAME_LIVE_P (XFRAME (frame
)))
3595 return FRAME_KBOARD (XFRAME (frame
));
3600 Lisp_Object Vthrow_on_input
;
3602 /* Store an event obtained at interrupt level into kbd_buffer, fifo */
3605 kbd_buffer_store_event (event
)
3606 register struct input_event
*event
;
3608 kbd_buffer_store_event_hold (event
, 0);
3611 /* Store EVENT obtained at interrupt level into kbd_buffer, fifo.
3613 If HOLD_QUIT is 0, just stuff EVENT into the fifo.
3614 Else, if HOLD_QUIT.kind != NO_EVENT, discard EVENT.
3615 Else, if EVENT is a quit event, store the quit event
3616 in HOLD_QUIT, and return (thus ignoring further events).
3618 This is used in read_avail_input to postpone the processing
3619 of the quit event until all subsequent input events have been
3620 parsed (and discarded).
3624 kbd_buffer_store_event_hold (event
, hold_quit
)
3625 register struct input_event
*event
;
3626 struct input_event
*hold_quit
;
3628 if (event
->kind
== NO_EVENT
)
3631 if (hold_quit
&& hold_quit
->kind
!= NO_EVENT
)
3634 if (event
->kind
== ASCII_KEYSTROKE_EVENT
)
3636 register int c
= event
->code
& 0377;
3638 if (event
->modifiers
& ctrl_modifier
)
3639 c
= make_ctrl_char (c
);
3641 c
|= (event
->modifiers
3642 & (meta_modifier
| alt_modifier
3643 | hyper_modifier
| super_modifier
));
3649 struct input_event
*sp
;
3652 && (kb
= FRAME_KBOARD (XFRAME (event
->frame_or_window
)),
3653 kb
!= current_kboard
))
3656 = Fcons (make_lispy_switch_frame (event
->frame_or_window
),
3657 Fcons (make_number (c
), Qnil
));
3658 kb
->kbd_queue_has_data
= 1;
3659 for (sp
= kbd_fetch_ptr
; sp
!= kbd_store_ptr
; sp
++)
3661 if (sp
== kbd_buffer
+ KBD_BUFFER_SIZE
)
3664 if (event_to_kboard (sp
) == kb
)
3666 sp
->kind
= NO_EVENT
;
3667 sp
->frame_or_window
= Qnil
;
3677 bcopy (event
, (char *) hold_quit
, sizeof (*event
));
3681 /* If this results in a quit_char being returned to Emacs as
3682 input, set Vlast_event_frame properly. If this doesn't
3683 get returned to Emacs as an event, the next event read
3684 will set Vlast_event_frame again, so this is safe to do. */
3688 focus
= FRAME_FOCUS_FRAME (XFRAME (event
->frame_or_window
));
3690 focus
= event
->frame_or_window
;
3691 internal_last_event_frame
= focus
;
3692 Vlast_event_frame
= focus
;
3695 last_event_timestamp
= event
->timestamp
;
3696 interrupt_signal (0 /* dummy */);
3700 if (c
&& c
== stop_character
)
3706 /* Don't insert two BUFFER_SWITCH_EVENT's in a row.
3707 Just ignore the second one. */
3708 else if (event
->kind
== BUFFER_SWITCH_EVENT
3709 && kbd_fetch_ptr
!= kbd_store_ptr
3710 && ((kbd_store_ptr
== kbd_buffer
3711 ? kbd_buffer
+ KBD_BUFFER_SIZE
- 1
3712 : kbd_store_ptr
- 1)->kind
) == BUFFER_SWITCH_EVENT
)
3715 if (kbd_store_ptr
- kbd_buffer
== KBD_BUFFER_SIZE
)
3716 kbd_store_ptr
= kbd_buffer
;
3718 /* Don't let the very last slot in the buffer become full,
3719 since that would make the two pointers equal,
3720 and that is indistinguishable from an empty buffer.
3721 Discard the event if it would fill the last slot. */
3722 if (kbd_fetch_ptr
- 1 != kbd_store_ptr
)
3724 *kbd_store_ptr
= *event
;
3728 /* If we're inside while-no-input, and this event qualifies
3729 as input, set quit-flag to cause an interrupt. */
3730 if (!NILP (Vthrow_on_input
)
3731 && event
->kind
!= FOCUS_IN_EVENT
3732 && event
->kind
!= HELP_EVENT
3733 && event
->kind
!= DEICONIFY_EVENT
)
3735 Vquit_flag
= Vthrow_on_input
;
3736 /* If we're inside a function that wants immediate quits,
3738 if (immediate_quit
&& NILP (Vinhibit_quit
))
3748 /* Put an input event back in the head of the event queue. */
3751 kbd_buffer_unget_event (event
)
3752 register struct input_event
*event
;
3754 if (kbd_fetch_ptr
== kbd_buffer
)
3755 kbd_fetch_ptr
= kbd_buffer
+ KBD_BUFFER_SIZE
;
3757 /* Don't let the very last slot in the buffer become full, */
3758 if (kbd_fetch_ptr
- 1 != kbd_store_ptr
)
3761 *kbd_fetch_ptr
= *event
;
3766 /* Generate HELP_EVENT input_events in BUFP which has room for
3767 SIZE events. If there's not enough room in BUFP, ignore this
3770 HELP is the help form.
3772 FRAME is the frame on which the help is generated. OBJECT is the
3773 Lisp object where the help was found (a buffer, a string, an
3774 overlay, or nil if neither from a string nor from a buffer. POS is
3775 the position within OBJECT where the help was found.
3777 Value is the number of input_events generated. */
3780 gen_help_event (help
, frame
, window
, object
, pos
)
3781 Lisp_Object help
, frame
, object
, window
;
3784 struct input_event event
;
3788 event
.kind
= HELP_EVENT
;
3789 event
.frame_or_window
= frame
;
3791 event
.x
= WINDOWP (window
) ? window
: frame
;
3794 kbd_buffer_store_event (&event
);
3798 /* Store HELP_EVENTs for HELP on FRAME in the input queue. */
3801 kbd_buffer_store_help_event (frame
, help
)
3802 Lisp_Object frame
, help
;
3804 struct input_event event
;
3806 event
.kind
= HELP_EVENT
;
3807 event
.frame_or_window
= frame
;
3812 kbd_buffer_store_event (&event
);
3816 /* Discard any mouse events in the event buffer by setting them to
3819 discard_mouse_events ()
3821 struct input_event
*sp
;
3822 for (sp
= kbd_fetch_ptr
; sp
!= kbd_store_ptr
; sp
++)
3824 if (sp
== kbd_buffer
+ KBD_BUFFER_SIZE
)
3827 if (sp
->kind
== MOUSE_CLICK_EVENT
3828 || sp
->kind
== WHEEL_EVENT
3830 || sp
->kind
== W32_SCROLL_BAR_CLICK_EVENT
3832 || sp
->kind
== SCROLL_BAR_CLICK_EVENT
)
3834 sp
->kind
= NO_EVENT
;
3840 /* Return non-zero if there are any real events waiting in the event
3841 buffer, not counting `NO_EVENT's.
3843 If DISCARD is non-zero, discard NO_EVENT events at the front of
3844 the input queue, possibly leaving the input queue empty if there
3845 are no real input events. */
3848 kbd_buffer_events_waiting (discard
)
3851 struct input_event
*sp
;
3853 for (sp
= kbd_fetch_ptr
;
3854 sp
!= kbd_store_ptr
&& sp
->kind
== NO_EVENT
;
3857 if (sp
== kbd_buffer
+ KBD_BUFFER_SIZE
)
3864 return sp
!= kbd_store_ptr
&& sp
->kind
!= NO_EVENT
;
3868 /* Clear input event EVENT. */
3872 struct input_event
*event
;
3874 event
->kind
= NO_EVENT
;
3878 /* Read one event from the event buffer, waiting if necessary.
3879 The value is a Lisp object representing the event.
3880 The value is nil for an event that should be ignored,
3881 or that was handled here.
3882 We always read and discard one event. */
3885 kbd_buffer_get_event (kbp
, used_mouse_menu
)
3887 int *used_mouse_menu
;
3896 *kbp
= current_kboard
;
3900 /* Wait until there is input available. */
3903 if (kbd_fetch_ptr
!= kbd_store_ptr
)
3906 if (!NILP (do_mouse_tracking
) && some_mouse_moved ())
3910 /* If the quit flag is set, then read_char will return
3911 quit_char, so that counts as "available input." */
3912 if (!NILP (Vquit_flag
))
3913 quit_throw_to_read_char ();
3915 /* One way or another, wait until input is available; then, if
3916 interrupt handlers have not read it, read it now. */
3919 wait_for_kbd_input ();
3921 /* Note SIGIO has been undef'd if FIONREAD is missing. */
3925 if (kbd_fetch_ptr
!= kbd_store_ptr
)
3928 if (!NILP (do_mouse_tracking
) && some_mouse_moved ())
3932 wait_reading_process_output (0, 0, -1, 1, Qnil
, NULL
, 0);
3934 if (!interrupt_input
&& kbd_fetch_ptr
== kbd_store_ptr
)
3935 /* Pass 1 for EXPECT since we just waited to have input. */
3936 read_avail_input (1);
3938 #endif /* not VMS */
3941 if (CONSP (Vunread_command_events
))
3944 first
= XCAR (Vunread_command_events
);
3945 Vunread_command_events
= XCDR (Vunread_command_events
);
3946 *kbp
= current_kboard
;
3950 /* At this point, we know that there is a readable event available
3951 somewhere. If the event queue is empty, then there must be a
3952 mouse movement enabled and available. */
3953 if (kbd_fetch_ptr
!= kbd_store_ptr
)
3955 struct input_event
*event
;
3957 event
= ((kbd_fetch_ptr
< kbd_buffer
+ KBD_BUFFER_SIZE
)
3961 last_event_timestamp
= event
->timestamp
;
3964 *kbp
= event_to_kboard (event
);
3966 *kbp
= current_kboard
; /* Better than returning null ptr? */
3968 *kbp
= &the_only_kboard
;
3973 /* These two kinds of events get special handling
3974 and don't actually appear to the command loop.
3975 We return nil for them. */
3976 if (event
->kind
== SELECTION_REQUEST_EVENT
3977 || event
->kind
== SELECTION_CLEAR_EVENT
)
3980 struct input_event copy
;
3982 /* Remove it from the buffer before processing it,
3983 since otherwise swallow_events will see it
3984 and process it again. */
3986 kbd_fetch_ptr
= event
+ 1;
3987 input_pending
= readable_events (0);
3988 x_handle_selection_event (©
);
3990 /* We're getting selection request events, but we don't have
3996 #if defined (HAVE_X11) || defined (HAVE_NTGUI) || defined (MAC_OS)
3997 else if (event
->kind
== DELETE_WINDOW_EVENT
)
3999 /* Make an event (delete-frame (FRAME)). */
4000 obj
= Fcons (event
->frame_or_window
, Qnil
);
4001 obj
= Fcons (Qdelete_frame
, Fcons (obj
, Qnil
));
4002 kbd_fetch_ptr
= event
+ 1;
4005 #if defined (HAVE_X11) || defined (HAVE_NTGUI) || defined (MAC_OS)
4006 else if (event
->kind
== ICONIFY_EVENT
)
4008 /* Make an event (iconify-frame (FRAME)). */
4009 obj
= Fcons (event
->frame_or_window
, Qnil
);
4010 obj
= Fcons (Qiconify_frame
, Fcons (obj
, Qnil
));
4011 kbd_fetch_ptr
= event
+ 1;
4013 else if (event
->kind
== DEICONIFY_EVENT
)
4015 /* Make an event (make-frame-visible (FRAME)). */
4016 obj
= Fcons (event
->frame_or_window
, Qnil
);
4017 obj
= Fcons (Qmake_frame_visible
, Fcons (obj
, Qnil
));
4018 kbd_fetch_ptr
= event
+ 1;
4021 else if (event
->kind
== BUFFER_SWITCH_EVENT
)
4023 /* The value doesn't matter here; only the type is tested. */
4024 XSETBUFFER (obj
, current_buffer
);
4025 kbd_fetch_ptr
= event
+ 1;
4027 #if defined (USE_X_TOOLKIT) || defined (HAVE_NTGUI) || defined (MAC_OS) \
4028 || defined (USE_GTK)
4029 else if (event
->kind
== MENU_BAR_ACTIVATE_EVENT
)
4031 kbd_fetch_ptr
= event
+ 1;
4032 input_pending
= readable_events (0);
4033 if (FRAME_LIVE_P (XFRAME (event
->frame_or_window
)))
4034 x_activate_menubar (XFRAME (event
->frame_or_window
));
4037 #if defined (WINDOWSNT) || defined (MAC_OS)
4038 else if (event
->kind
== LANGUAGE_CHANGE_EVENT
)
4041 /* Make an event (language-change (KEY_SCRIPT)). */
4042 obj
= Fcons (make_number (event
->code
), Qnil
);
4044 /* Make an event (language-change (FRAME CHARSET LCID)). */
4045 obj
= Fcons (event
->frame_or_window
, Qnil
);
4047 obj
= Fcons (Qlanguage_change
, Fcons (obj
, Qnil
));
4048 kbd_fetch_ptr
= event
+ 1;
4051 else if (event
->kind
== SAVE_SESSION_EVENT
)
4053 obj
= Fcons (Qsave_session
, Qnil
);
4054 kbd_fetch_ptr
= event
+ 1;
4056 /* Just discard these, by returning nil.
4057 With MULTI_KBOARD, these events are used as placeholders
4058 when we need to randomly delete events from the queue.
4059 (They shouldn't otherwise be found in the buffer,
4060 but on some machines it appears they do show up
4061 even without MULTI_KBOARD.) */
4062 /* On Windows NT/9X, NO_EVENT is used to delete extraneous
4063 mouse events during a popup-menu call. */
4064 else if (event
->kind
== NO_EVENT
)
4065 kbd_fetch_ptr
= event
+ 1;
4066 else if (event
->kind
== HELP_EVENT
)
4068 Lisp_Object object
, position
, help
, frame
, window
;
4070 frame
= event
->frame_or_window
;
4071 object
= event
->arg
;
4072 position
= make_number (event
->code
);
4075 clear_event (event
);
4077 kbd_fetch_ptr
= event
+ 1;
4078 if (!WINDOWP (window
))
4080 obj
= Fcons (Qhelp_echo
,
4081 list5 (frame
, help
, window
, object
, position
));
4083 else if (event
->kind
== FOCUS_IN_EVENT
)
4085 /* Notification of a FocusIn event. The frame receiving the
4086 focus is in event->frame_or_window. Generate a
4087 switch-frame event if necessary. */
4088 Lisp_Object frame
, focus
;
4090 frame
= event
->frame_or_window
;
4091 focus
= FRAME_FOCUS_FRAME (XFRAME (frame
));
4095 if (!EQ (frame
, internal_last_event_frame
)
4096 && !EQ (frame
, selected_frame
))
4097 obj
= make_lispy_switch_frame (frame
);
4098 internal_last_event_frame
= frame
;
4099 kbd_fetch_ptr
= event
+ 1;
4103 /* If this event is on a different frame, return a switch-frame this
4104 time, and leave the event in the queue for next time. */
4108 frame
= event
->frame_or_window
;
4110 frame
= XCAR (frame
);
4111 else if (WINDOWP (frame
))
4112 frame
= WINDOW_FRAME (XWINDOW (frame
));
4114 focus
= FRAME_FOCUS_FRAME (XFRAME (frame
));
4118 if (! EQ (frame
, internal_last_event_frame
)
4119 && !EQ (frame
, selected_frame
))
4120 obj
= make_lispy_switch_frame (frame
);
4121 internal_last_event_frame
= frame
;
4123 /* If we didn't decide to make a switch-frame event, go ahead
4124 and build a real event from the queue entry. */
4128 obj
= make_lispy_event (event
);
4130 #if defined (USE_X_TOOLKIT) || defined (HAVE_NTGUI) || defined(MAC_OS) \
4131 || defined (USE_GTK)
4132 /* If this was a menu selection, then set the flag to inhibit
4133 writing to last_nonmenu_event. Don't do this if the event
4134 we're returning is (menu-bar), though; that indicates the
4135 beginning of the menu sequence, and we might as well leave
4136 that as the `event with parameters' for this selection. */
4138 && !EQ (event
->frame_or_window
, event
->arg
)
4139 && (event
->kind
== MENU_BAR_EVENT
4140 || event
->kind
== TOOL_BAR_EVENT
))
4141 *used_mouse_menu
= 1;
4144 /* Wipe out this event, to catch bugs. */
4145 clear_event (event
);
4146 kbd_fetch_ptr
= event
+ 1;
4151 /* Try generating a mouse motion event. */
4152 else if (!NILP (do_mouse_tracking
) && some_mouse_moved ())
4154 FRAME_PTR f
= some_mouse_moved ();
4155 Lisp_Object bar_window
;
4156 enum scroll_bar_part part
;
4160 *kbp
= current_kboard
;
4161 /* Note that this uses F to determine which display to look at.
4162 If there is no valid info, it does not store anything
4163 so x remains nil. */
4165 (*mouse_position_hook
) (&f
, 0, &bar_window
, &part
, &x
, &y
, &time
);
4169 /* Decide if we should generate a switch-frame event. Don't
4170 generate switch-frame events for motion outside of all Emacs
4176 frame
= FRAME_FOCUS_FRAME (f
);
4178 XSETFRAME (frame
, f
);
4180 if (! EQ (frame
, internal_last_event_frame
)
4181 && !EQ (frame
, selected_frame
))
4182 obj
= make_lispy_switch_frame (frame
);
4183 internal_last_event_frame
= frame
;
4186 /* If we didn't decide to make a switch-frame event, go ahead and
4187 return a mouse-motion event. */
4188 if (!NILP (x
) && NILP (obj
))
4189 obj
= make_lispy_movement (f
, bar_window
, part
, x
, y
, time
);
4191 #endif /* HAVE_MOUSE */
4193 /* We were promised by the above while loop that there was
4194 something for us to read! */
4197 input_pending
= readable_events (0);
4199 Vlast_event_frame
= internal_last_event_frame
;
4204 /* Process any events that are not user-visible,
4205 then return, without reading any user-visible events. */
4208 swallow_events (do_display
)
4213 while (kbd_fetch_ptr
!= kbd_store_ptr
)
4215 struct input_event
*event
;
4217 event
= ((kbd_fetch_ptr
< kbd_buffer
+ KBD_BUFFER_SIZE
)
4221 last_event_timestamp
= event
->timestamp
;
4223 /* These two kinds of events get special handling
4224 and don't actually appear to the command loop. */
4225 if (event
->kind
== SELECTION_REQUEST_EVENT
4226 || event
->kind
== SELECTION_CLEAR_EVENT
)
4229 struct input_event copy
;
4231 /* Remove it from the buffer before processing it,
4232 since otherwise swallow_events called recursively could see it
4233 and process it again. */
4235 kbd_fetch_ptr
= event
+ 1;
4236 input_pending
= readable_events (0);
4237 x_handle_selection_event (©
);
4239 /* We're getting selection request events, but we don't have
4248 old_timers_run
= timers_run
;
4249 get_input_pending (&input_pending
, READABLE_EVENTS_DO_TIMERS_NOW
);
4251 if (timers_run
!= old_timers_run
&& do_display
)
4252 redisplay_preserve_echo_area (7);
4255 /* Record the start of when Emacs is idle,
4256 for the sake of running idle-time timers. */
4263 /* If we are already in the idle state, do nothing. */
4264 if (! EMACS_TIME_NEG_P (timer_idleness_start_time
))
4267 EMACS_GET_TIME (timer_idleness_start_time
);
4269 timer_last_idleness_start_time
= timer_idleness_start_time
;
4271 /* Mark all idle-time timers as once again candidates for running. */
4272 for (timers
= Vtimer_idle_list
; CONSP (timers
); timers
= XCDR (timers
))
4276 timer
= XCAR (timers
);
4278 if (!VECTORP (timer
) || XVECTOR (timer
)->size
!= 8)
4280 XVECTOR (timer
)->contents
[0] = Qnil
;
4284 /* Record that Emacs is no longer idle, so stop running idle-time timers. */
4289 EMACS_SET_SECS_USECS (timer_idleness_start_time
, -1, -1);
4292 /* Resume idle timer from last idle start time. */
4295 timer_resume_idle ()
4297 if (! EMACS_TIME_NEG_P (timer_idleness_start_time
))
4300 timer_idleness_start_time
= timer_last_idleness_start_time
;
4303 /* This is only for debugging. */
4304 struct input_event last_timer_event
;
4306 /* Check whether a timer has fired. To prevent larger problems we simply
4307 disregard elements that are not proper timers. Do not make a circular
4308 timer list for the time being.
4310 Returns the number of seconds to wait until the next timer fires. If a
4311 timer is triggering now, return zero seconds.
4312 If no timer is active, return -1 seconds.
4314 If a timer is ripe, we run it, with quitting turned off.
4316 DO_IT_NOW is now ignored. It used to mean that we should
4317 run the timer directly instead of queueing a timer-event.
4318 Now we always run timers directly. */
4321 timer_check (do_it_now
)
4324 EMACS_TIME nexttime
;
4325 EMACS_TIME now
, idleness_now
;
4326 Lisp_Object timers
, idle_timers
, chosen_timer
;
4327 struct gcpro gcpro1
, gcpro2
, gcpro3
;
4329 EMACS_SET_SECS (nexttime
, -1);
4330 EMACS_SET_USECS (nexttime
, -1);
4332 /* Always consider the ordinary timers. */
4333 timers
= Vtimer_list
;
4334 /* Consider the idle timers only if Emacs is idle. */
4335 if (! EMACS_TIME_NEG_P (timer_idleness_start_time
))
4336 idle_timers
= Vtimer_idle_list
;
4339 chosen_timer
= Qnil
;
4340 GCPRO3 (timers
, idle_timers
, chosen_timer
);
4342 if (CONSP (timers
) || CONSP (idle_timers
))
4344 EMACS_GET_TIME (now
);
4345 if (! EMACS_TIME_NEG_P (timer_idleness_start_time
))
4346 EMACS_SUB_TIME (idleness_now
, now
, timer_idleness_start_time
);
4349 while (CONSP (timers
) || CONSP (idle_timers
))
4351 Lisp_Object
*vector
;
4352 Lisp_Object timer
= Qnil
, idle_timer
= Qnil
;
4353 EMACS_TIME timer_time
, idle_timer_time
;
4354 EMACS_TIME difference
, timer_difference
, idle_timer_difference
;
4356 /* Skip past invalid timers and timers already handled. */
4359 timer
= XCAR (timers
);
4360 if (!VECTORP (timer
) || XVECTOR (timer
)->size
!= 8)
4362 timers
= XCDR (timers
);
4365 vector
= XVECTOR (timer
)->contents
;
4367 if (!INTEGERP (vector
[1]) || !INTEGERP (vector
[2])
4368 || !INTEGERP (vector
[3])
4369 || ! NILP (vector
[0]))
4371 timers
= XCDR (timers
);
4375 if (!NILP (idle_timers
))
4377 timer
= XCAR (idle_timers
);
4378 if (!VECTORP (timer
) || XVECTOR (timer
)->size
!= 8)
4380 idle_timers
= XCDR (idle_timers
);
4383 vector
= XVECTOR (timer
)->contents
;
4385 if (!INTEGERP (vector
[1]) || !INTEGERP (vector
[2])
4386 || !INTEGERP (vector
[3])
4387 || ! NILP (vector
[0]))
4389 idle_timers
= XCDR (idle_timers
);
4394 /* Set TIMER, TIMER_TIME and TIMER_DIFFERENCE
4395 based on the next ordinary timer.
4396 TIMER_DIFFERENCE is the distance in time from NOW to when
4397 this timer becomes ripe (negative if it's already ripe). */
4400 timer
= XCAR (timers
);
4401 vector
= XVECTOR (timer
)->contents
;
4402 EMACS_SET_SECS (timer_time
,
4403 (XINT (vector
[1]) << 16) | (XINT (vector
[2])));
4404 EMACS_SET_USECS (timer_time
, XINT (vector
[3]));
4405 EMACS_SUB_TIME (timer_difference
, timer_time
, now
);
4408 /* Set IDLE_TIMER, IDLE_TIMER_TIME and IDLE_TIMER_DIFFERENCE
4409 based on the next idle timer. */
4410 if (!NILP (idle_timers
))
4412 idle_timer
= XCAR (idle_timers
);
4413 vector
= XVECTOR (idle_timer
)->contents
;
4414 EMACS_SET_SECS (idle_timer_time
,
4415 (XINT (vector
[1]) << 16) | (XINT (vector
[2])));
4416 EMACS_SET_USECS (idle_timer_time
, XINT (vector
[3]));
4417 EMACS_SUB_TIME (idle_timer_difference
, idle_timer_time
, idleness_now
);
4420 /* Decide which timer is the next timer,
4421 and set CHOSEN_TIMER, VECTOR and DIFFERENCE accordingly.
4422 Also step down the list where we found that timer. */
4424 if (! NILP (timers
) && ! NILP (idle_timers
))
4427 EMACS_SUB_TIME (temp
, timer_difference
, idle_timer_difference
);
4428 if (EMACS_TIME_NEG_P (temp
))
4430 chosen_timer
= timer
;
4431 timers
= XCDR (timers
);
4432 difference
= timer_difference
;
4436 chosen_timer
= idle_timer
;
4437 idle_timers
= XCDR (idle_timers
);
4438 difference
= idle_timer_difference
;
4441 else if (! NILP (timers
))
4443 chosen_timer
= timer
;
4444 timers
= XCDR (timers
);
4445 difference
= timer_difference
;
4449 chosen_timer
= idle_timer
;
4450 idle_timers
= XCDR (idle_timers
);
4451 difference
= idle_timer_difference
;
4453 vector
= XVECTOR (chosen_timer
)->contents
;
4455 /* If timer is ripe, run it if it hasn't been run. */
4456 if (EMACS_TIME_NEG_P (difference
)
4457 || (EMACS_SECS (difference
) == 0
4458 && EMACS_USECS (difference
) == 0))
4460 if (NILP (vector
[0]))
4462 int was_locked
= single_kboard
;
4463 int count
= SPECPDL_INDEX ();
4464 Lisp_Object old_deactivate_mark
= Vdeactivate_mark
;
4466 /* Mark the timer as triggered to prevent problems if the lisp
4467 code fails to reschedule it right. */
4470 specbind (Qinhibit_quit
, Qt
);
4472 call1 (Qtimer_event_handler
, chosen_timer
);
4473 Vdeactivate_mark
= old_deactivate_mark
;
4475 unbind_to (count
, Qnil
);
4477 /* Resume allowing input from any kboard, if that was true before. */
4479 any_kboard_state ();
4481 /* Since we have handled the event,
4482 we don't need to tell the caller to wake up and do it. */
4486 /* When we encounter a timer that is still waiting,
4487 return the amount of time to wait before it is ripe. */
4494 /* No timers are pending in the future. */
4495 /* Return 0 if we generated an event, and -1 if not. */
4500 /* Caches for modify_event_symbol. */
4501 static Lisp_Object accent_key_syms
;
4502 static Lisp_Object func_key_syms
;
4503 static Lisp_Object mouse_syms
;
4504 static Lisp_Object wheel_syms
;
4505 static Lisp_Object drag_n_drop_syms
;
4507 /* This is a list of keysym codes for special "accent" characters.
4508 It parallels lispy_accent_keys. */
4510 static int lispy_accent_codes
[] =
4512 #ifdef XK_dead_circumflex
4517 #ifdef XK_dead_grave
4522 #ifdef XK_dead_tilde
4527 #ifdef XK_dead_diaeresis
4532 #ifdef XK_dead_macron
4537 #ifdef XK_dead_degree
4542 #ifdef XK_dead_acute
4547 #ifdef XK_dead_cedilla
4552 #ifdef XK_dead_breve
4557 #ifdef XK_dead_ogonek
4562 #ifdef XK_dead_caron
4567 #ifdef XK_dead_doubleacute
4568 XK_dead_doubleacute
,
4572 #ifdef XK_dead_abovedot
4577 #ifdef XK_dead_abovering
4587 #ifdef XK_dead_belowdot
4592 #ifdef XK_dead_voiced_sound
4593 XK_dead_voiced_sound
,
4597 #ifdef XK_dead_semivoiced_sound
4598 XK_dead_semivoiced_sound
,
4614 /* This is a list of Lisp names for special "accent" characters.
4615 It parallels lispy_accent_codes. */
4617 static char *lispy_accent_keys
[] =
4635 "dead-voiced-sound",
4636 "dead-semivoiced-sound",
4642 #define FUNCTION_KEY_OFFSET 0x0
4644 char *lispy_function_keys
[] =
4648 0, /* VK_LBUTTON 0x01 */
4649 0, /* VK_RBUTTON 0x02 */
4650 "cancel", /* VK_CANCEL 0x03 */
4651 0, /* VK_MBUTTON 0x04 */
4653 0, 0, 0, /* 0x05 .. 0x07 */
4655 "backspace", /* VK_BACK 0x08 */
4656 "tab", /* VK_TAB 0x09 */
4658 0, 0, /* 0x0A .. 0x0B */
4660 "clear", /* VK_CLEAR 0x0C */
4661 "return", /* VK_RETURN 0x0D */
4663 0, 0, /* 0x0E .. 0x0F */
4665 0, /* VK_SHIFT 0x10 */
4666 0, /* VK_CONTROL 0x11 */
4667 0, /* VK_MENU 0x12 */
4668 "pause", /* VK_PAUSE 0x13 */
4669 "capslock", /* VK_CAPITAL 0x14 */
4671 0, 0, 0, 0, 0, 0, /* 0x15 .. 0x1A */
4673 "escape", /* VK_ESCAPE 0x1B */
4675 0, 0, 0, 0, /* 0x1C .. 0x1F */
4677 0, /* VK_SPACE 0x20 */
4678 "prior", /* VK_PRIOR 0x21 */
4679 "next", /* VK_NEXT 0x22 */
4680 "end", /* VK_END 0x23 */
4681 "home", /* VK_HOME 0x24 */
4682 "left", /* VK_LEFT 0x25 */
4683 "up", /* VK_UP 0x26 */
4684 "right", /* VK_RIGHT 0x27 */
4685 "down", /* VK_DOWN 0x28 */
4686 "select", /* VK_SELECT 0x29 */
4687 "print", /* VK_PRINT 0x2A */
4688 "execute", /* VK_EXECUTE 0x2B */
4689 "snapshot", /* VK_SNAPSHOT 0x2C */
4690 "insert", /* VK_INSERT 0x2D */
4691 "delete", /* VK_DELETE 0x2E */
4692 "help", /* VK_HELP 0x2F */
4694 /* VK_0 thru VK_9 are the same as ASCII '0' thru '9' (0x30 - 0x39) */
4696 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
4698 0, 0, 0, 0, 0, 0, 0, /* 0x3A .. 0x40 */
4700 /* VK_A thru VK_Z are the same as ASCII 'A' thru 'Z' (0x41 - 0x5A) */
4702 0, 0, 0, 0, 0, 0, 0, 0, 0,
4703 0, 0, 0, 0, 0, 0, 0, 0, 0,
4704 0, 0, 0, 0, 0, 0, 0, 0,
4706 "lwindow", /* VK_LWIN 0x5B */
4707 "rwindow", /* VK_RWIN 0x5C */
4708 "apps", /* VK_APPS 0x5D */
4710 0, 0, /* 0x5E .. 0x5F */
4712 "kp-0", /* VK_NUMPAD0 0x60 */
4713 "kp-1", /* VK_NUMPAD1 0x61 */
4714 "kp-2", /* VK_NUMPAD2 0x62 */
4715 "kp-3", /* VK_NUMPAD3 0x63 */
4716 "kp-4", /* VK_NUMPAD4 0x64 */
4717 "kp-5", /* VK_NUMPAD5 0x65 */
4718 "kp-6", /* VK_NUMPAD6 0x66 */
4719 "kp-7", /* VK_NUMPAD7 0x67 */
4720 "kp-8", /* VK_NUMPAD8 0x68 */
4721 "kp-9", /* VK_NUMPAD9 0x69 */
4722 "kp-multiply", /* VK_MULTIPLY 0x6A */
4723 "kp-add", /* VK_ADD 0x6B */
4724 "kp-separator", /* VK_SEPARATOR 0x6C */
4725 "kp-subtract", /* VK_SUBTRACT 0x6D */
4726 "kp-decimal", /* VK_DECIMAL 0x6E */
4727 "kp-divide", /* VK_DIVIDE 0x6F */
4728 "f1", /* VK_F1 0x70 */
4729 "f2", /* VK_F2 0x71 */
4730 "f3", /* VK_F3 0x72 */
4731 "f4", /* VK_F4 0x73 */
4732 "f5", /* VK_F5 0x74 */
4733 "f6", /* VK_F6 0x75 */
4734 "f7", /* VK_F7 0x76 */
4735 "f8", /* VK_F8 0x77 */
4736 "f9", /* VK_F9 0x78 */
4737 "f10", /* VK_F10 0x79 */
4738 "f11", /* VK_F11 0x7A */
4739 "f12", /* VK_F12 0x7B */
4740 "f13", /* VK_F13 0x7C */
4741 "f14", /* VK_F14 0x7D */
4742 "f15", /* VK_F15 0x7E */
4743 "f16", /* VK_F16 0x7F */
4744 "f17", /* VK_F17 0x80 */
4745 "f18", /* VK_F18 0x81 */
4746 "f19", /* VK_F19 0x82 */
4747 "f20", /* VK_F20 0x83 */
4748 "f21", /* VK_F21 0x84 */
4749 "f22", /* VK_F22 0x85 */
4750 "f23", /* VK_F23 0x86 */
4751 "f24", /* VK_F24 0x87 */
4753 0, 0, 0, 0, /* 0x88 .. 0x8B */
4754 0, 0, 0, 0, /* 0x8C .. 0x8F */
4756 "kp-numlock", /* VK_NUMLOCK 0x90 */
4757 "scroll", /* VK_SCROLL 0x91 */
4759 "kp-space", /* VK_NUMPAD_CLEAR 0x92 */
4760 "kp-enter", /* VK_NUMPAD_ENTER 0x93 */
4761 "kp-prior", /* VK_NUMPAD_PRIOR 0x94 */
4762 "kp-next", /* VK_NUMPAD_NEXT 0x95 */
4763 "kp-end", /* VK_NUMPAD_END 0x96 */
4764 "kp-home", /* VK_NUMPAD_HOME 0x97 */
4765 "kp-left", /* VK_NUMPAD_LEFT 0x98 */
4766 "kp-up", /* VK_NUMPAD_UP 0x99 */
4767 "kp-right", /* VK_NUMPAD_RIGHT 0x9A */
4768 "kp-down", /* VK_NUMPAD_DOWN 0x9B */
4769 "kp-insert", /* VK_NUMPAD_INSERT 0x9C */
4770 "kp-delete", /* VK_NUMPAD_DELETE 0x9D */
4772 0, 0, /* 0x9E .. 0x9F */
4775 * VK_L* & VK_R* - left and right Alt, Ctrl and Shift virtual keys.
4776 * Used only as parameters to GetAsyncKeyState and GetKeyState.
4777 * No other API or message will distinguish left and right keys this way.
4781 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
4782 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
4783 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
4784 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
4785 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
4791 "attn", /* VK_ATTN 0xF6 */
4792 "crsel", /* VK_CRSEL 0xF7 */
4793 "exsel", /* VK_EXSEL 0xF8 */
4794 "ereof", /* VK_EREOF 0xF9 */
4795 "play", /* VK_PLAY 0xFA */
4796 "zoom", /* VK_ZOOM 0xFB */
4797 "noname", /* VK_NONAME 0xFC */
4798 "pa1", /* VK_PA1 0xFD */
4799 "oem_clear", /* VK_OEM_CLEAR 0xFE */
4803 #else /* not HAVE_NTGUI */
4805 /* This should be dealt with in XTread_socket now, and that doesn't
4806 depend on the client system having the Kana syms defined. See also
4807 the XK_kana_A case below. */
4810 static char *lispy_kana_keys
[] =
4812 /* X Keysym value */
4813 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x400 .. 0x40f */
4814 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x410 .. 0x41f */
4815 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x420 .. 0x42f */
4816 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x430 .. 0x43f */
4817 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x440 .. 0x44f */
4818 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x450 .. 0x45f */
4819 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x460 .. 0x46f */
4820 0,0,0,0,0,0,0,0,0,0,0,0,0,0,"overline",0,
4821 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x480 .. 0x48f */
4822 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x490 .. 0x49f */
4823 0, "kana-fullstop", "kana-openingbracket", "kana-closingbracket",
4824 "kana-comma", "kana-conjunctive", "kana-WO", "kana-a",
4825 "kana-i", "kana-u", "kana-e", "kana-o",
4826 "kana-ya", "kana-yu", "kana-yo", "kana-tsu",
4827 "prolongedsound", "kana-A", "kana-I", "kana-U",
4828 "kana-E", "kana-O", "kana-KA", "kana-KI",
4829 "kana-KU", "kana-KE", "kana-KO", "kana-SA",
4830 "kana-SHI", "kana-SU", "kana-SE", "kana-SO",
4831 "kana-TA", "kana-CHI", "kana-TSU", "kana-TE",
4832 "kana-TO", "kana-NA", "kana-NI", "kana-NU",
4833 "kana-NE", "kana-NO", "kana-HA", "kana-HI",
4834 "kana-FU", "kana-HE", "kana-HO", "kana-MA",
4835 "kana-MI", "kana-MU", "kana-ME", "kana-MO",
4836 "kana-YA", "kana-YU", "kana-YO", "kana-RA",
4837 "kana-RI", "kana-RU", "kana-RE", "kana-RO",
4838 "kana-WA", "kana-N", "voicedsound", "semivoicedsound",
4839 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x4e0 .. 0x4ef */
4840 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x4f0 .. 0x4ff */
4842 #endif /* XK_kana_A */
4845 #define FUNCTION_KEY_OFFSET 0xff00
4847 /* You'll notice that this table is arranged to be conveniently
4848 indexed by X Windows keysym values. */
4849 static char *lispy_function_keys
[] =
4851 /* X Keysym value */
4853 0, 0, 0, 0, 0, 0, 0, 0, /* 0xff00...0f */
4854 "backspace", "tab", "linefeed", "clear",
4856 0, 0, 0, "pause", /* 0xff10...1f */
4857 0, 0, 0, 0, 0, 0, 0, "escape",
4859 0, "kanji", "muhenkan", "henkan", /* 0xff20...2f */
4860 "romaji", "hiragana", "katakana", "hiragana-katakana",
4861 "zenkaku", "hankaku", "zenkaku-hankaku", "touroku",
4862 "massyo", "kana-lock", "kana-shift", "eisu-shift",
4863 "eisu-toggle", /* 0xff30...3f */
4864 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
4865 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* 0xff40...4f */
4867 "home", "left", "up", "right", /* 0xff50 */ /* IsCursorKey */
4868 "down", "prior", "next", "end",
4869 "begin", 0, 0, 0, 0, 0, 0, 0,
4870 "select", /* 0xff60 */ /* IsMiscFunctionKey */
4881 "break", /* 0xff6b */
4884 0, 0, 0, 0, "backtab", 0, 0, 0, /* 0xff70... */
4885 0, 0, 0, 0, 0, 0, 0, "kp-numlock", /* 0xff78... */
4886 "kp-space", /* 0xff80 */ /* IsKeypadKey */
4887 0, 0, 0, 0, 0, 0, 0, 0,
4888 "kp-tab", /* 0xff89 */
4890 "kp-enter", /* 0xff8d */
4892 "kp-f1", /* 0xff91 */
4896 "kp-home", /* 0xff95 */
4901 "kp-prior", /* kp-page-up */
4902 "kp-next", /* kp-page-down */
4908 0, 0, 0, 0, 0, 0, 0, 0, 0,
4909 "kp-multiply", /* 0xffaa */
4914 "kp-divide", /* 0xffaf */
4915 "kp-0", /* 0xffb0 */
4916 "kp-1", "kp-2", "kp-3", "kp-4", "kp-5", "kp-6", "kp-7", "kp-8", "kp-9",
4919 "kp-equal", /* 0xffbd */
4920 "f1", /* 0xffbe */ /* IsFunctionKey */
4922 "f3", "f4", "f5", "f6", "f7", "f8", "f9", "f10", /* 0xffc0 */
4923 "f11", "f12", "f13", "f14", "f15", "f16", "f17", "f18",
4924 "f19", "f20", "f21", "f22", "f23", "f24", "f25", "f26", /* 0xffd0 */
4925 "f27", "f28", "f29", "f30", "f31", "f32", "f33", "f34",
4926 "f35", 0, 0, 0, 0, 0, 0, 0, /* 0xffe0 */
4927 0, 0, 0, 0, 0, 0, 0, 0,
4928 0, 0, 0, 0, 0, 0, 0, 0, /* 0xfff0 */
4929 0, 0, 0, 0, 0, 0, 0, "delete"
4932 /* ISO 9995 Function and Modifier Keys; the first byte is 0xFE. */
4933 #define ISO_FUNCTION_KEY_OFFSET 0xfe00
4935 static char *iso_lispy_function_keys
[] =
4937 0, 0, 0, 0, 0, 0, 0, 0, /* 0xfe00 */
4938 0, 0, 0, 0, 0, 0, 0, 0, /* 0xfe08 */
4939 0, 0, 0, 0, 0, 0, 0, 0, /* 0xfe10 */
4940 0, 0, 0, 0, 0, 0, 0, 0, /* 0xfe18 */
4941 "iso-lefttab", /* 0xfe20 */
4942 "iso-move-line-up", "iso-move-line-down",
4943 "iso-partial-line-up", "iso-partial-line-down",
4944 "iso-partial-space-left", "iso-partial-space-right",
4945 "iso-set-margin-left", "iso-set-margin-right", /* 0xffe27, 28 */
4946 "iso-release-margin-left", "iso-release-margin-right",
4947 "iso-release-both-margins",
4948 "iso-fast-cursor-left", "iso-fast-cursor-right",
4949 "iso-fast-cursor-up", "iso-fast-cursor-down",
4950 "iso-continuous-underline", "iso-discontinuous-underline", /* 0xfe30, 31 */
4951 "iso-emphasize", "iso-center-object", "iso-enter", /* ... 0xfe34 */
4954 #endif /* not HAVE_NTGUI */
4956 Lisp_Object Vlispy_mouse_stem
;
4958 static char *lispy_wheel_names
[] =
4960 "wheel-up", "wheel-down"
4963 /* drag-n-drop events are generated when a set of selected files are
4964 dragged from another application and dropped onto an Emacs window. */
4965 static char *lispy_drag_n_drop_names
[] =
4970 /* Scroll bar parts. */
4971 Lisp_Object Qabove_handle
, Qhandle
, Qbelow_handle
;
4972 Lisp_Object Qup
, Qdown
, Qbottom
, Qend_scroll
;
4973 Lisp_Object Qtop
, Qratio
;
4975 /* An array of scroll bar parts, indexed by an enum scroll_bar_part value. */
4976 Lisp_Object
*scroll_bar_parts
[] = {
4977 &Qabove_handle
, &Qhandle
, &Qbelow_handle
,
4978 &Qup
, &Qdown
, &Qtop
, &Qbottom
, &Qend_scroll
, &Qratio
4981 /* User signal events. */
4982 Lisp_Object Qusr1_signal
, Qusr2_signal
;
4984 Lisp_Object
*lispy_user_signals
[] =
4986 &Qusr1_signal
, &Qusr2_signal
4990 /* A vector, indexed by button number, giving the down-going location
4991 of currently depressed buttons, both scroll bar and non-scroll bar.
4993 The elements have the form
4994 (BUTTON-NUMBER MODIFIER-MASK . REST)
4995 where REST is the cdr of a position as it would be reported in the event.
4997 The make_lispy_event function stores positions here to tell the
4998 difference between click and drag events, and to store the starting
4999 location to be included in drag events. */
5001 static Lisp_Object button_down_location
;
5003 /* Information about the most recent up-going button event: Which
5004 button, what location, and what time. */
5006 static int last_mouse_button
;
5007 static int last_mouse_x
;
5008 static int last_mouse_y
;
5009 static unsigned long button_down_time
;
5011 /* The maximum time between clicks to make a double-click, or Qnil to
5012 disable double-click detection, or Qt for no time limit. */
5014 Lisp_Object Vdouble_click_time
;
5016 /* Maximum number of pixels the mouse may be moved between clicks
5017 to make a double-click. */
5019 EMACS_INT double_click_fuzz
;
5021 /* The number of clicks in this multiple-click. */
5023 int double_click_count
;
5025 /* Return position of a mouse click or wheel event */
5028 make_lispy_position (f
, x
, y
, time
)
5034 enum window_part part
;
5035 Lisp_Object posn
= Qnil
;
5036 Lisp_Object extra_info
= Qnil
;
5039 /* Set `window' to the window under frame pixel coordinates (x,y) */
5041 window
= window_from_coordinates (f
, XINT (*x
), XINT (*y
),
5042 &part
, &wx
, &wy
, 0);
5046 if (WINDOWP (window
))
5048 /* It's a click in window window at frame coordinates (x,y) */
5049 struct window
*w
= XWINDOW (window
);
5050 Lisp_Object string_info
= Qnil
;
5051 int textpos
= -1, rx
= -1, ry
= -1;
5052 int dx
= -1, dy
= -1;
5053 int width
= -1, height
= -1;
5054 Lisp_Object object
= Qnil
;
5056 /* Set event coordinates to window-relative coordinates
5057 for constructing the Lisp event below. */
5061 if (part
== ON_TEXT
)
5063 wx
+= WINDOW_LEFT_MARGIN_WIDTH (w
);
5065 else if (part
== ON_MODE_LINE
|| part
== ON_HEADER_LINE
)
5067 /* Mode line or header line. Look for a string under
5068 the mouse that may have a `local-map' property. */
5072 posn
= part
== ON_MODE_LINE
? Qmode_line
: Qheader_line
;
5074 string
= mode_line_string (w
, part
, &rx
, &ry
, &charpos
,
5075 &object
, &dx
, &dy
, &width
, &height
);
5076 if (STRINGP (string
))
5077 string_info
= Fcons (string
, make_number (charpos
));
5078 if (w
== XWINDOW (selected_window
))
5081 textpos
= XMARKER (w
->pointm
)->charpos
;
5083 else if (part
== ON_VERTICAL_BORDER
)
5085 posn
= Qvertical_line
;
5090 else if (part
== ON_LEFT_MARGIN
|| part
== ON_RIGHT_MARGIN
)
5095 posn
= (part
== ON_LEFT_MARGIN
) ? Qleft_margin
: Qright_margin
;
5097 string
= marginal_area_string (w
, part
, &rx
, &ry
, &charpos
,
5098 &object
, &dx
, &dy
, &width
, &height
);
5099 if (STRINGP (string
))
5100 string_info
= Fcons (string
, make_number (charpos
));
5101 if (part
== ON_LEFT_MARGIN
)
5104 wx
= window_box_right_offset (w
, TEXT_AREA
) - 1;
5106 else if (part
== ON_LEFT_FRINGE
)
5108 posn
= Qleft_fringe
;
5111 wx
= (WINDOW_HAS_FRINGES_OUTSIDE_MARGINS (w
)
5113 : window_box_width (w
, LEFT_MARGIN_AREA
));
5116 else if (part
== ON_RIGHT_FRINGE
)
5118 posn
= Qright_fringe
;
5121 wx
= (window_box_width (w
, LEFT_MARGIN_AREA
)
5122 + window_box_width (w
, TEXT_AREA
)
5123 + (WINDOW_HAS_FRINGES_OUTSIDE_MARGINS (w
)
5124 ? window_box_width (w
, RIGHT_MARGIN_AREA
)
5130 /* Note: We have no special posn for part == ON_SCROLL_BAR. */
5131 wx
= max (WINDOW_LEFT_MARGIN_WIDTH (w
), wx
);
5136 Lisp_Object string2
, object2
= Qnil
;
5137 struct display_pos p
;
5139 int width2
, height2
;
5140 string2
= buffer_posn_from_coords (w
, &wx
, &wy
, &p
,
5141 &object2
, &dx2
, &dy2
,
5143 textpos
= CHARPOS (p
.pos
);
5144 if (rx
< 0) rx
= wx
;
5145 if (ry
< 0) ry
= wy
;
5146 if (dx
< 0) dx
= dx2
;
5147 if (dy
< 0) dy
= dy2
;
5148 if (width
< 0) width
= width2
;
5149 if (height
< 0) height
= height2
;
5153 posn
= make_number (textpos
);
5154 if (STRINGP (string2
))
5155 string_info
= Fcons (string2
,
5156 make_number (CHARPOS (p
.string_pos
)));
5162 #ifdef HAVE_WINDOW_SYSTEM
5163 if (IMAGEP (object
))
5165 Lisp_Object image_map
, hotspot
;
5166 if ((image_map
= Fplist_get (XCDR (object
), QCmap
),
5168 && (hotspot
= find_hot_spot (image_map
, dx
, dy
),
5170 && (hotspot
= XCDR (hotspot
), CONSP (hotspot
)))
5171 posn
= XCAR (hotspot
);
5176 extra_info
= Fcons (object
,
5177 Fcons (Fcons (make_number (dx
),
5179 Fcons (Fcons (make_number (width
),
5180 make_number (height
)),
5184 extra_info
= Fcons (string_info
,
5185 Fcons (make_number (textpos
),
5186 Fcons (Fcons (make_number (rx
),
5192 XSETFRAME (window
, f
);
5197 XSETFASTINT (*x
, 0);
5198 XSETFASTINT (*y
, 0);
5201 return Fcons (window
,
5203 Fcons (Fcons (*x
, *y
),
5204 Fcons (make_number (time
),
5208 /* Given a struct input_event, build the lisp event which represents
5209 it. If EVENT is 0, build a mouse movement event from the mouse
5210 movement buffer, which should have a movement event in it.
5212 Note that events must be passed to this function in the order they
5213 are received; this function stores the location of button presses
5214 in order to build drag events when the button is released. */
5217 make_lispy_event (event
)
5218 struct input_event
*event
;
5222 switch (SWITCH_ENUM_CAST (event
->kind
))
5224 /* A simple keystroke. */
5225 case ASCII_KEYSTROKE_EVENT
:
5227 Lisp_Object lispy_c
;
5228 int c
= event
->code
& 0377;
5229 /* Turn ASCII characters into control characters
5231 if (event
->modifiers
& ctrl_modifier
)
5232 c
= make_ctrl_char (c
);
5234 /* Add in the other modifier bits. We took care of ctrl_modifier
5235 just above, and the shift key was taken care of by the X code,
5236 and applied to control characters by make_ctrl_char. */
5237 c
|= (event
->modifiers
5238 & (meta_modifier
| alt_modifier
5239 | hyper_modifier
| super_modifier
));
5240 /* Distinguish Shift-SPC from SPC. */
5241 if ((event
->code
& 0377) == 040
5242 && event
->modifiers
& shift_modifier
)
5243 c
|= shift_modifier
;
5244 button_down_time
= 0;
5245 XSETFASTINT (lispy_c
, c
);
5249 case MULTIBYTE_CHAR_KEYSTROKE_EVENT
:
5251 Lisp_Object lispy_c
;
5252 int c
= event
->code
;
5254 /* Add in the other modifier bits. We took care of ctrl_modifier
5255 just above, and the shift key was taken care of by the X code,
5256 and applied to control characters by make_ctrl_char. */
5257 c
|= (event
->modifiers
5258 & (meta_modifier
| alt_modifier
5259 | hyper_modifier
| super_modifier
| ctrl_modifier
));
5260 /* What about the `shift' modifier ? */
5261 button_down_time
= 0;
5262 XSETFASTINT (lispy_c
, c
);
5266 /* A function key. The symbol may need to have modifier prefixes
5268 case NON_ASCII_KEYSTROKE_EVENT
:
5269 button_down_time
= 0;
5271 for (i
= 0; i
< sizeof (lispy_accent_codes
) / sizeof (int); i
++)
5272 if (event
->code
== lispy_accent_codes
[i
])
5273 return modify_event_symbol (i
,
5275 Qfunction_key
, Qnil
,
5276 lispy_accent_keys
, &accent_key_syms
,
5277 (sizeof (lispy_accent_keys
)
5278 / sizeof (lispy_accent_keys
[0])));
5282 if (event
->code
>= 0x400 && event
->code
< 0x500)
5283 return modify_event_symbol (event
->code
- 0x400,
5284 event
->modifiers
& ~shift_modifier
,
5285 Qfunction_key
, Qnil
,
5286 lispy_kana_keys
, &func_key_syms
,
5287 (sizeof (lispy_kana_keys
)
5288 / sizeof (lispy_kana_keys
[0])));
5289 #endif /* XK_kana_A */
5292 #ifdef ISO_FUNCTION_KEY_OFFSET
5293 if (event
->code
< FUNCTION_KEY_OFFSET
5294 && event
->code
>= ISO_FUNCTION_KEY_OFFSET
)
5295 return modify_event_symbol (event
->code
- ISO_FUNCTION_KEY_OFFSET
,
5297 Qfunction_key
, Qnil
,
5298 iso_lispy_function_keys
, &func_key_syms
,
5299 (sizeof (iso_lispy_function_keys
)
5300 / sizeof (iso_lispy_function_keys
[0])));
5303 /* Handle system-specific or unknown keysyms. */
5304 if (event
->code
& (1 << 28)
5305 || event
->code
- FUNCTION_KEY_OFFSET
< 0
5306 || (event
->code
- FUNCTION_KEY_OFFSET
5307 >= sizeof lispy_function_keys
/ sizeof *lispy_function_keys
)
5308 || !lispy_function_keys
[event
->code
- FUNCTION_KEY_OFFSET
])
5310 /* We need to use an alist rather than a vector as the cache
5311 since we can't make a vector long enuf. */
5312 if (NILP (current_kboard
->system_key_syms
))
5313 current_kboard
->system_key_syms
= Fcons (Qnil
, Qnil
);
5314 return modify_event_symbol (event
->code
,
5317 current_kboard
->Vsystem_key_alist
,
5318 0, ¤t_kboard
->system_key_syms
,
5322 return modify_event_symbol (event
->code
- FUNCTION_KEY_OFFSET
,
5324 Qfunction_key
, Qnil
,
5325 lispy_function_keys
, &func_key_syms
,
5326 (sizeof (lispy_function_keys
)
5327 / sizeof (lispy_function_keys
[0])));
5330 /* A mouse click. Figure out where it is, decide whether it's
5331 a press, click or drag, and build the appropriate structure. */
5332 case MOUSE_CLICK_EVENT
:
5333 #ifndef USE_TOOLKIT_SCROLL_BARS
5334 case SCROLL_BAR_CLICK_EVENT
:
5337 int button
= event
->code
;
5339 Lisp_Object position
;
5340 Lisp_Object
*start_pos_ptr
;
5341 Lisp_Object start_pos
;
5345 /* Build the position as appropriate for this mouse click. */
5346 if (event
->kind
== MOUSE_CLICK_EVENT
)
5348 struct frame
*f
= XFRAME (event
->frame_or_window
);
5349 #if ! defined (USE_X_TOOLKIT) && ! defined (USE_GTK)
5353 /* Ignore mouse events that were made on frame that
5354 have been deleted. */
5355 if (! FRAME_LIVE_P (f
))
5358 #if ! defined (USE_X_TOOLKIT) && ! defined (USE_GTK)
5359 /* EVENT->x and EVENT->y are frame-relative pixel
5360 coordinates at this place. Under old redisplay, COLUMN
5361 and ROW are set to frame relative glyph coordinates
5362 which are then used to determine whether this click is
5363 in a menu (non-toolkit version). */
5364 pixel_to_glyph_coords (f
, XINT (event
->x
), XINT (event
->y
),
5365 &column
, &row
, NULL
, 1);
5367 /* In the non-toolkit version, clicks on the menu bar
5368 are ordinary button events in the event buffer.
5369 Distinguish them, and invoke the menu.
5371 (In the toolkit version, the toolkit handles the menu bar
5372 and Emacs doesn't know about it until after the user
5373 makes a selection.) */
5374 if (row
>= 0 && row
< FRAME_MENU_BAR_LINES (f
)
5375 && (event
->modifiers
& down_modifier
))
5377 Lisp_Object items
, item
;
5382 /* Activate the menu bar on the down event. If the
5383 up event comes in before the menu code can deal with it,
5385 if (! (event
->modifiers
& down_modifier
))
5389 /* Find the menu bar item under `column'. */
5391 items
= FRAME_MENU_BAR_ITEMS (f
);
5392 for (i
= 0; i
< XVECTOR (items
)->size
; i
+= 4)
5394 Lisp_Object pos
, string
;
5395 string
= AREF (items
, i
+ 1);
5396 pos
= AREF (items
, i
+ 3);
5399 if (column
>= XINT (pos
)
5400 && column
< XINT (pos
) + SCHARS (string
))
5402 item
= AREF (items
, i
);
5407 /* ELisp manual 2.4b says (x y) are window relative but
5408 code says they are frame-relative. */
5410 = Fcons (event
->frame_or_window
,
5412 Fcons (Fcons (event
->x
, event
->y
),
5413 Fcons (make_number (event
->timestamp
),
5416 return Fcons (item
, Fcons (position
, Qnil
));
5418 #endif /* not USE_X_TOOLKIT && not USE_GTK */
5420 position
= make_lispy_position (f
, &event
->x
, &event
->y
,
5423 #ifndef USE_TOOLKIT_SCROLL_BARS
5426 /* It's a scrollbar click. */
5428 Lisp_Object portion_whole
;
5431 window
= event
->frame_or_window
;
5432 portion_whole
= Fcons (event
->x
, event
->y
);
5433 part
= *scroll_bar_parts
[(int) event
->part
];
5437 Fcons (Qvertical_scroll_bar
,
5438 Fcons (portion_whole
,
5439 Fcons (make_number (event
->timestamp
),
5440 Fcons (part
, Qnil
)))));
5442 #endif /* not USE_TOOLKIT_SCROLL_BARS */
5444 if (button
>= ASIZE (button_down_location
))
5446 button_down_location
= larger_vector (button_down_location
,
5448 mouse_syms
= larger_vector (mouse_syms
, button
+ 1, Qnil
);
5451 start_pos_ptr
= &AREF (button_down_location
, button
);
5452 start_pos
= *start_pos_ptr
;
5453 *start_pos_ptr
= Qnil
;
5456 /* On window-system frames, use the value of
5457 double-click-fuzz as is. On other frames, interpret it
5458 as a multiple of 1/8 characters. */
5462 if (WINDOWP (event
->frame_or_window
))
5463 f
= XFRAME (XWINDOW (event
->frame_or_window
)->frame
);
5464 else if (FRAMEP (event
->frame_or_window
))
5465 f
= XFRAME (event
->frame_or_window
);
5469 if (FRAME_WINDOW_P (f
))
5470 fuzz
= double_click_fuzz
;
5472 fuzz
= double_click_fuzz
/ 8;
5474 is_double
= (button
== last_mouse_button
5475 && (abs (XINT (event
->x
) - last_mouse_x
) <= fuzz
)
5476 && (abs (XINT (event
->y
) - last_mouse_y
) <= fuzz
)
5477 && button_down_time
!= 0
5478 && (EQ (Vdouble_click_time
, Qt
)
5479 || (INTEGERP (Vdouble_click_time
)
5480 && ((int)(event
->timestamp
- button_down_time
)
5481 < XINT (Vdouble_click_time
)))));
5484 last_mouse_button
= button
;
5485 last_mouse_x
= XINT (event
->x
);
5486 last_mouse_y
= XINT (event
->y
);
5488 /* If this is a button press, squirrel away the location, so
5489 we can decide later whether it was a click or a drag. */
5490 if (event
->modifiers
& down_modifier
)
5494 double_click_count
++;
5495 event
->modifiers
|= ((double_click_count
> 2)
5500 double_click_count
= 1;
5501 button_down_time
= event
->timestamp
;
5502 *start_pos_ptr
= Fcopy_alist (position
);
5505 /* Now we're releasing a button - check the co-ordinates to
5506 see if this was a click or a drag. */
5507 else if (event
->modifiers
& up_modifier
)
5509 /* If we did not see a down before this up, ignore the up.
5510 Probably this happened because the down event chose a
5511 menu item. It would be an annoyance to treat the
5512 release of the button that chose the menu item as a
5515 if (!CONSP (start_pos
))
5518 event
->modifiers
&= ~up_modifier
;
5519 #if 0 /* Formerly we treated an up with no down as a click event. */
5520 if (!CONSP (start_pos
))
5521 event
->modifiers
|= click_modifier
;
5526 EMACS_INT xdiff
= double_click_fuzz
, ydiff
= double_click_fuzz
;
5528 /* The third element of every position
5529 should be the (x,y) pair. */
5530 down
= Fcar (Fcdr (Fcdr (start_pos
)));
5532 && INTEGERP (XCAR (down
)) && INTEGERP (XCDR (down
)))
5534 xdiff
= XINT (event
->x
) - XINT (XCAR (down
));
5535 ydiff
= XINT (event
->y
) - XINT (XCDR (down
));
5538 if (xdiff
< double_click_fuzz
&& xdiff
> - double_click_fuzz
5539 && ydiff
< double_click_fuzz
&& ydiff
> - double_click_fuzz
5540 /* Maybe the mouse has moved a lot, caused scrolling, and
5541 eventually ended up at the same screen position (but
5542 not buffer position) in which case it is a drag, not
5544 /* FIXME: OTOH if the buffer position has changed
5545 because of a timer or process filter rather than
5546 because of mouse movement, it should be considered as
5547 a click. But mouse-drag-region completely ignores
5548 this case and it hasn't caused any real problem, so
5549 it's probably OK to ignore it as well. */
5550 && EQ (Fcar (Fcdr (start_pos
)), Fcar (Fcdr (position
))))
5551 /* Mouse hasn't moved (much). */
5552 event
->modifiers
|= click_modifier
;
5555 button_down_time
= 0;
5556 event
->modifiers
|= drag_modifier
;
5559 /* Don't check is_double; treat this as multiple
5560 if the down-event was multiple. */
5561 if (double_click_count
> 1)
5562 event
->modifiers
|= ((double_click_count
> 2)
5568 /* Every mouse event should either have the down_modifier or
5569 the up_modifier set. */
5573 /* Get the symbol we should use for the mouse click. */
5576 head
= modify_event_symbol (button
,
5578 Qmouse_click
, Vlispy_mouse_stem
,
5581 XVECTOR (mouse_syms
)->size
);
5582 if (event
->modifiers
& drag_modifier
)
5587 else if (event
->modifiers
& (double_modifier
| triple_modifier
))
5590 Fcons (make_number (double_click_count
),
5601 Lisp_Object position
;
5604 /* Build the position as appropriate for this mouse click. */
5605 struct frame
*f
= XFRAME (event
->frame_or_window
);
5607 /* Ignore wheel events that were made on frame that have been
5609 if (! FRAME_LIVE_P (f
))
5612 position
= make_lispy_position (f
, &event
->x
, &event
->y
,
5615 /* Set double or triple modifiers to indicate the wheel speed. */
5617 /* On window-system frames, use the value of
5618 double-click-fuzz as is. On other frames, interpret it
5619 as a multiple of 1/8 characters. */
5624 if (WINDOWP (event
->frame_or_window
))
5625 f
= XFRAME (XWINDOW (event
->frame_or_window
)->frame
);
5626 else if (FRAMEP (event
->frame_or_window
))
5627 f
= XFRAME (event
->frame_or_window
);
5631 if (FRAME_WINDOW_P (f
))
5632 fuzz
= double_click_fuzz
;
5634 fuzz
= double_click_fuzz
/ 8;
5636 is_double
= (last_mouse_button
< 0
5637 && (abs (XINT (event
->x
) - last_mouse_x
) <= fuzz
)
5638 && (abs (XINT (event
->y
) - last_mouse_y
) <= fuzz
)
5639 && button_down_time
!= 0
5640 && (EQ (Vdouble_click_time
, Qt
)
5641 || (INTEGERP (Vdouble_click_time
)
5642 && ((int)(event
->timestamp
- button_down_time
)
5643 < XINT (Vdouble_click_time
)))));
5646 double_click_count
++;
5647 event
->modifiers
|= ((double_click_count
> 2)
5653 double_click_count
= 1;
5654 event
->modifiers
|= click_modifier
;
5657 button_down_time
= event
->timestamp
;
5658 /* Use a negative value to distinguish wheel from mouse button. */
5659 last_mouse_button
= -1;
5660 last_mouse_x
= XINT (event
->x
);
5661 last_mouse_y
= XINT (event
->y
);
5667 if (event
->modifiers
& up_modifier
)
5669 /* Emit a wheel-up event. */
5670 event
->modifiers
&= ~up_modifier
;
5673 else if (event
->modifiers
& down_modifier
)
5675 /* Emit a wheel-down event. */
5676 event
->modifiers
&= ~down_modifier
;
5680 /* Every wheel event should either have the down_modifier or
5681 the up_modifier set. */
5684 /* Get the symbol we should use for the wheel event. */
5685 head
= modify_event_symbol (symbol_num
,
5691 ASIZE (wheel_syms
));
5694 if (event
->modifiers
& (double_modifier
| triple_modifier
))
5697 Fcons (make_number (double_click_count
),
5706 #ifdef USE_TOOLKIT_SCROLL_BARS
5708 /* We don't have down and up events if using toolkit scroll bars,
5709 so make this always a click event. Store in the `part' of
5710 the Lisp event a symbol which maps to the following actions:
5712 `above_handle' page up
5713 `below_handle' page down
5717 `bottom' bottom of buffer
5718 `handle' thumb has been dragged.
5719 `end-scroll' end of interaction with scroll bar
5721 The incoming input_event contains in its `part' member an
5722 index of type `enum scroll_bar_part' which we can use as an
5723 index in scroll_bar_parts to get the appropriate symbol. */
5725 case SCROLL_BAR_CLICK_EVENT
:
5727 Lisp_Object position
, head
, window
, portion_whole
, part
;
5729 window
= event
->frame_or_window
;
5730 portion_whole
= Fcons (event
->x
, event
->y
);
5731 part
= *scroll_bar_parts
[(int) event
->part
];
5735 Fcons (Qvertical_scroll_bar
,
5736 Fcons (portion_whole
,
5737 Fcons (make_number (event
->timestamp
),
5738 Fcons (part
, Qnil
)))));
5740 /* Always treat scroll bar events as clicks. */
5741 event
->modifiers
|= click_modifier
;
5742 event
->modifiers
&= ~up_modifier
;
5744 if (event
->code
>= ASIZE (mouse_syms
))
5745 mouse_syms
= larger_vector (mouse_syms
, event
->code
+ 1, Qnil
);
5747 /* Get the symbol we should use for the mouse click. */
5748 head
= modify_event_symbol (event
->code
,
5753 XVECTOR (mouse_syms
)->size
);
5754 return Fcons (head
, Fcons (position
, Qnil
));
5757 #endif /* USE_TOOLKIT_SCROLL_BARS */
5760 case W32_SCROLL_BAR_CLICK_EVENT
:
5762 int button
= event
->code
;
5764 Lisp_Object position
;
5765 Lisp_Object
*start_pos_ptr
;
5766 Lisp_Object start_pos
;
5770 Lisp_Object portion_whole
;
5773 window
= event
->frame_or_window
;
5774 portion_whole
= Fcons (event
->x
, event
->y
);
5775 part
= *scroll_bar_parts
[(int) event
->part
];
5779 Fcons (Qvertical_scroll_bar
,
5780 Fcons (portion_whole
,
5781 Fcons (make_number (event
->timestamp
),
5782 Fcons (part
, Qnil
)))));
5785 /* Always treat W32 scroll bar events as clicks. */
5786 event
->modifiers
|= click_modifier
;
5789 /* Get the symbol we should use for the mouse click. */
5792 head
= modify_event_symbol (button
,
5797 XVECTOR (mouse_syms
)->size
);
5803 #endif /* WINDOWSNT */
5805 case DRAG_N_DROP_EVENT
:
5808 Lisp_Object head
, position
;
5811 f
= XFRAME (event
->frame_or_window
);
5814 /* Ignore mouse events that were made on frames that
5815 have been deleted. */
5816 if (! FRAME_LIVE_P (f
))
5819 position
= make_lispy_position (f
, &event
->x
, &event
->y
,
5822 head
= modify_event_symbol (0, event
->modifiers
,
5824 lispy_drag_n_drop_names
,
5825 &drag_n_drop_syms
, 1);
5831 #endif /* HAVE_MOUSE */
5833 #if defined (USE_X_TOOLKIT) || defined (HAVE_NTGUI) || defined (MAC_OS) \
5834 || defined (USE_GTK)
5835 case MENU_BAR_EVENT
:
5836 if (EQ (event
->arg
, event
->frame_or_window
))
5837 /* This is the prefix key. We translate this to
5838 `(menu_bar)' because the code in keyboard.c for menu
5839 events, which we use, relies on this. */
5840 return Fcons (Qmenu_bar
, Qnil
);
5844 case SELECT_WINDOW_EVENT
:
5845 /* Make an event (select-window (WINDOW)). */
5846 return Fcons (Qselect_window
,
5847 Fcons (Fcons (event
->frame_or_window
, Qnil
),
5850 case TOOL_BAR_EVENT
:
5851 if (EQ (event
->arg
, event
->frame_or_window
))
5852 /* This is the prefix key. We translate this to
5853 `(tool_bar)' because the code in keyboard.c for tool bar
5854 events, which we use, relies on this. */
5855 return Fcons (Qtool_bar
, Qnil
);
5856 else if (SYMBOLP (event
->arg
))
5857 return apply_modifiers (event
->modifiers
, event
->arg
);
5860 case USER_SIGNAL_EVENT
:
5861 /* A user signal. */
5862 return *lispy_user_signals
[event
->code
];
5864 case SAVE_SESSION_EVENT
:
5865 return Qsave_session
;
5868 case MAC_APPLE_EVENT
:
5870 Lisp_Object spec
[2];
5874 return Fcons (Qmac_apple_event
,
5875 Fcons (Fvector (2, spec
),
5876 Fcons (mac_make_lispy_event_code (event
->code
),
5881 /* The 'kind' field of the event is something we don't recognize. */
5890 make_lispy_movement (frame
, bar_window
, part
, x
, y
, time
)
5892 Lisp_Object bar_window
;
5893 enum scroll_bar_part part
;
5897 /* Is it a scroll bar movement? */
5898 if (frame
&& ! NILP (bar_window
))
5900 Lisp_Object part_sym
;
5902 part_sym
= *scroll_bar_parts
[(int) part
];
5903 return Fcons (Qscroll_bar_movement
,
5904 (Fcons (Fcons (bar_window
,
5905 Fcons (Qvertical_scroll_bar
,
5906 Fcons (Fcons (x
, y
),
5907 Fcons (make_number (time
),
5913 /* Or is it an ordinary mouse movement? */
5916 Lisp_Object position
;
5918 position
= make_lispy_position (frame
, &x
, &y
, time
);
5920 return Fcons (Qmouse_movement
,
5926 #endif /* HAVE_MOUSE */
5928 /* Construct a switch frame event. */
5930 make_lispy_switch_frame (frame
)
5933 return Fcons (Qswitch_frame
, Fcons (frame
, Qnil
));
5936 /* Manipulating modifiers. */
5938 /* Parse the name of SYMBOL, and return the set of modifiers it contains.
5940 If MODIFIER_END is non-zero, set *MODIFIER_END to the position in
5941 SYMBOL's name of the end of the modifiers; the string from this
5942 position is the unmodified symbol name.
5944 This doesn't use any caches. */
5947 parse_modifiers_uncached (symbol
, modifier_end
)
5955 CHECK_SYMBOL (symbol
);
5958 name
= SYMBOL_NAME (symbol
);
5960 for (i
= 0; i
+2 <= SBYTES (name
); )
5962 int this_mod_end
= 0;
5965 /* See if the name continues with a modifier word.
5966 Check that the word appears, but don't check what follows it.
5967 Set this_mod and this_mod_end to record what we find. */
5969 switch (SREF (name
, i
))
5971 #define SINGLE_LETTER_MOD(BIT) \
5972 (this_mod_end = i + 1, this_mod = BIT)
5975 SINGLE_LETTER_MOD (alt_modifier
);
5979 SINGLE_LETTER_MOD (ctrl_modifier
);
5983 SINGLE_LETTER_MOD (hyper_modifier
);
5987 SINGLE_LETTER_MOD (meta_modifier
);
5991 SINGLE_LETTER_MOD (shift_modifier
);
5995 SINGLE_LETTER_MOD (super_modifier
);
5998 #undef SINGLE_LETTER_MOD
6000 #define MULTI_LETTER_MOD(BIT, NAME, LEN) \
6001 if (i + LEN + 1 <= SBYTES (name) \
6002 && ! strncmp (SDATA (name) + i, NAME, LEN)) \
6004 this_mod_end = i + LEN; \
6009 MULTI_LETTER_MOD (drag_modifier
, "drag", 4);
6010 MULTI_LETTER_MOD (down_modifier
, "down", 4);
6011 MULTI_LETTER_MOD (double_modifier
, "double", 6);
6015 MULTI_LETTER_MOD (triple_modifier
, "triple", 6);
6017 #undef MULTI_LETTER_MOD
6021 /* If we found no modifier, stop looking for them. */
6022 if (this_mod_end
== 0)
6025 /* Check there is a dash after the modifier, so that it
6026 really is a modifier. */
6027 if (this_mod_end
>= SBYTES (name
)
6028 || SREF (name
, this_mod_end
) != '-')
6031 /* This modifier is real; look for another. */
6032 modifiers
|= this_mod
;
6033 i
= this_mod_end
+ 1;
6036 /* Should we include the `click' modifier? */
6037 if (! (modifiers
& (down_modifier
| drag_modifier
6038 | double_modifier
| triple_modifier
))
6039 && i
+ 7 == SBYTES (name
)
6040 && strncmp (SDATA (name
) + i
, "mouse-", 6) == 0
6041 && ('0' <= SREF (name
, i
+ 6) && SREF (name
, i
+ 6) <= '9'))
6042 modifiers
|= click_modifier
;
6050 /* Return a symbol whose name is the modifier prefixes for MODIFIERS
6051 prepended to the string BASE[0..BASE_LEN-1].
6052 This doesn't use any caches. */
6054 apply_modifiers_uncached (modifiers
, base
, base_len
, base_len_byte
)
6057 int base_len
, base_len_byte
;
6059 /* Since BASE could contain nulls, we can't use intern here; we have
6060 to use Fintern, which expects a genuine Lisp_String, and keeps a
6063 = (char *) alloca (sizeof ("A-C-H-M-S-s-down-drag-double-triple-"));
6069 /* Only the event queue may use the `up' modifier; it should always
6070 be turned into a click or drag event before presented to lisp code. */
6071 if (modifiers
& up_modifier
)
6074 if (modifiers
& alt_modifier
) { *p
++ = 'A'; *p
++ = '-'; }
6075 if (modifiers
& ctrl_modifier
) { *p
++ = 'C'; *p
++ = '-'; }
6076 if (modifiers
& hyper_modifier
) { *p
++ = 'H'; *p
++ = '-'; }
6077 if (modifiers
& meta_modifier
) { *p
++ = 'M'; *p
++ = '-'; }
6078 if (modifiers
& shift_modifier
) { *p
++ = 'S'; *p
++ = '-'; }
6079 if (modifiers
& super_modifier
) { *p
++ = 's'; *p
++ = '-'; }
6080 if (modifiers
& double_modifier
) { strcpy (p
, "double-"); p
+= 7; }
6081 if (modifiers
& triple_modifier
) { strcpy (p
, "triple-"); p
+= 7; }
6082 if (modifiers
& down_modifier
) { strcpy (p
, "down-"); p
+= 5; }
6083 if (modifiers
& drag_modifier
) { strcpy (p
, "drag-"); p
+= 5; }
6084 /* The click modifier is denoted by the absence of other modifiers. */
6088 mod_len
= p
- new_mods
;
6092 Lisp_Object new_name
;
6094 new_name
= make_uninit_multibyte_string (mod_len
+ base_len
,
6095 mod_len
+ base_len_byte
);
6096 bcopy (new_mods
, SDATA (new_name
), mod_len
);
6097 bcopy (base
, SDATA (new_name
) + mod_len
, base_len_byte
);
6099 return Fintern (new_name
, Qnil
);
6104 static char *modifier_names
[] =
6106 "up", "down", "drag", "click", "double", "triple", 0, 0,
6107 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
6108 0, 0, "alt", "super", "hyper", "shift", "control", "meta"
6110 #define NUM_MOD_NAMES (sizeof (modifier_names) / sizeof (modifier_names[0]))
6112 static Lisp_Object modifier_symbols
;
6114 /* Return the list of modifier symbols corresponding to the mask MODIFIERS. */
6116 lispy_modifier_list (modifiers
)
6119 Lisp_Object modifier_list
;
6122 modifier_list
= Qnil
;
6123 for (i
= 0; (1<<i
) <= modifiers
&& i
< NUM_MOD_NAMES
; i
++)
6124 if (modifiers
& (1<<i
))
6125 modifier_list
= Fcons (XVECTOR (modifier_symbols
)->contents
[i
],
6128 return modifier_list
;
6132 /* Parse the modifiers on SYMBOL, and return a list like (UNMODIFIED MASK),
6133 where UNMODIFIED is the unmodified form of SYMBOL,
6134 MASK is the set of modifiers present in SYMBOL's name.
6135 This is similar to parse_modifiers_uncached, but uses the cache in
6136 SYMBOL's Qevent_symbol_element_mask property, and maintains the
6137 Qevent_symbol_elements property. */
6140 parse_modifiers (symbol
)
6143 Lisp_Object elements
;
6145 elements
= Fget (symbol
, Qevent_symbol_element_mask
);
6146 if (CONSP (elements
))
6151 int modifiers
= parse_modifiers_uncached (symbol
, &end
);
6152 Lisp_Object unmodified
;
6155 unmodified
= Fintern (make_string (SDATA (SYMBOL_NAME (symbol
)) + end
,
6156 SBYTES (SYMBOL_NAME (symbol
)) - end
),
6159 if (modifiers
& ~INTMASK
)
6161 XSETFASTINT (mask
, modifiers
);
6162 elements
= Fcons (unmodified
, Fcons (mask
, Qnil
));
6164 /* Cache the parsing results on SYMBOL. */
6165 Fput (symbol
, Qevent_symbol_element_mask
,
6167 Fput (symbol
, Qevent_symbol_elements
,
6168 Fcons (unmodified
, lispy_modifier_list (modifiers
)));
6170 /* Since we know that SYMBOL is modifiers applied to unmodified,
6171 it would be nice to put that in unmodified's cache.
6172 But we can't, since we're not sure that parse_modifiers is
6179 /* Apply the modifiers MODIFIERS to the symbol BASE.
6180 BASE must be unmodified.
6182 This is like apply_modifiers_uncached, but uses BASE's
6183 Qmodifier_cache property, if present. It also builds
6184 Qevent_symbol_elements properties, since it has that info anyway.
6186 apply_modifiers copies the value of BASE's Qevent_kind property to
6187 the modified symbol. */
6189 apply_modifiers (modifiers
, base
)
6193 Lisp_Object cache
, index
, entry
, new_symbol
;
6195 /* Mask out upper bits. We don't know where this value's been. */
6196 modifiers
&= INTMASK
;
6198 /* The click modifier never figures into cache indices. */
6199 cache
= Fget (base
, Qmodifier_cache
);
6200 XSETFASTINT (index
, (modifiers
& ~click_modifier
));
6201 entry
= assq_no_quit (index
, cache
);
6204 new_symbol
= XCDR (entry
);
6207 /* We have to create the symbol ourselves. */
6208 new_symbol
= apply_modifiers_uncached (modifiers
,
6209 SDATA (SYMBOL_NAME (base
)),
6210 SCHARS (SYMBOL_NAME (base
)),
6211 SBYTES (SYMBOL_NAME (base
)));
6213 /* Add the new symbol to the base's cache. */
6214 entry
= Fcons (index
, new_symbol
);
6215 Fput (base
, Qmodifier_cache
, Fcons (entry
, cache
));
6217 /* We have the parsing info now for free, so we could add it to
6219 XSETFASTINT (index, modifiers);
6220 Fput (new_symbol, Qevent_symbol_element_mask,
6221 Fcons (base, Fcons (index, Qnil)));
6222 Fput (new_symbol, Qevent_symbol_elements,
6223 Fcons (base, lispy_modifier_list (modifiers)));
6224 Sadly, this is only correct if `base' is indeed a base event,
6225 which is not necessarily the case. -stef */
6228 /* Make sure this symbol is of the same kind as BASE.
6230 You'd think we could just set this once and for all when we
6231 intern the symbol above, but reorder_modifiers may call us when
6232 BASE's property isn't set right; we can't assume that just
6233 because it has a Qmodifier_cache property it must have its
6234 Qevent_kind set right as well. */
6235 if (NILP (Fget (new_symbol
, Qevent_kind
)))
6239 kind
= Fget (base
, Qevent_kind
);
6241 Fput (new_symbol
, Qevent_kind
, kind
);
6248 /* Given a symbol whose name begins with modifiers ("C-", "M-", etc),
6249 return a symbol with the modifiers placed in the canonical order.
6250 Canonical order is alphabetical, except for down and drag, which
6251 always come last. The 'click' modifier is never written out.
6253 Fdefine_key calls this to make sure that (for example) C-M-foo
6254 and M-C-foo end up being equivalent in the keymap. */
6257 reorder_modifiers (symbol
)
6260 /* It's hopefully okay to write the code this way, since everything
6261 will soon be in caches, and no consing will be done at all. */
6264 parsed
= parse_modifiers (symbol
);
6265 return apply_modifiers ((int) XINT (XCAR (XCDR (parsed
))),
6270 /* For handling events, we often want to produce a symbol whose name
6271 is a series of modifier key prefixes ("M-", "C-", etcetera) attached
6272 to some base, like the name of a function key or mouse button.
6273 modify_event_symbol produces symbols of this sort.
6275 NAME_TABLE should point to an array of strings, such that NAME_TABLE[i]
6276 is the name of the i'th symbol. TABLE_SIZE is the number of elements
6279 Alternatively, NAME_ALIST_OR_STEM is either an alist mapping codes
6280 into symbol names, or a string specifying a name stem used to
6281 construct a symbol name or the form `STEM-N', where N is the decimal
6282 representation of SYMBOL_NUM. NAME_ALIST_OR_STEM is used if it is
6283 non-nil; otherwise NAME_TABLE is used.
6285 SYMBOL_TABLE should be a pointer to a Lisp_Object whose value will
6286 persist between calls to modify_event_symbol that it can use to
6287 store a cache of the symbols it's generated for this NAME_TABLE
6288 before. The object stored there may be a vector or an alist.
6290 SYMBOL_NUM is the number of the base name we want from NAME_TABLE.
6292 MODIFIERS is a set of modifier bits (as given in struct input_events)
6293 whose prefixes should be applied to the symbol name.
6295 SYMBOL_KIND is the value to be placed in the event_kind property of
6296 the returned symbol.
6298 The symbols we create are supposed to have an
6299 `event-symbol-elements' property, which lists the modifiers present
6300 in the symbol's name. */
6303 modify_event_symbol (symbol_num
, modifiers
, symbol_kind
, name_alist_or_stem
,
6304 name_table
, symbol_table
, table_size
)
6307 Lisp_Object symbol_kind
;
6308 Lisp_Object name_alist_or_stem
;
6310 Lisp_Object
*symbol_table
;
6311 unsigned int table_size
;
6314 Lisp_Object symbol_int
;
6316 /* Get rid of the "vendor-specific" bit here. */
6317 XSETINT (symbol_int
, symbol_num
& 0xffffff);
6319 /* Is this a request for a valid symbol? */
6320 if (symbol_num
< 0 || symbol_num
>= table_size
)
6323 if (CONSP (*symbol_table
))
6324 value
= Fcdr (assq_no_quit (symbol_int
, *symbol_table
));
6326 /* If *symbol_table doesn't seem to be initialized properly, fix that.
6327 *symbol_table should be a lisp vector TABLE_SIZE elements long,
6328 where the Nth element is the symbol for NAME_TABLE[N], or nil if
6329 we've never used that symbol before. */
6332 if (! VECTORP (*symbol_table
)
6333 || XVECTOR (*symbol_table
)->size
!= table_size
)
6337 XSETFASTINT (size
, table_size
);
6338 *symbol_table
= Fmake_vector (size
, Qnil
);
6341 value
= XVECTOR (*symbol_table
)->contents
[symbol_num
];
6344 /* Have we already used this symbol before? */
6347 /* No; let's create it. */
6348 if (CONSP (name_alist_or_stem
))
6349 value
= Fcdr_safe (Fassq (symbol_int
, name_alist_or_stem
));
6350 else if (STRINGP (name_alist_or_stem
))
6352 int len
= SBYTES (name_alist_or_stem
);
6353 char *buf
= (char *) alloca (len
+ 50);
6354 sprintf (buf
, "%s-%ld", SDATA (name_alist_or_stem
),
6355 (long) XINT (symbol_int
) + 1);
6356 value
= intern (buf
);
6358 else if (name_table
!= 0 && name_table
[symbol_num
])
6359 value
= intern (name_table
[symbol_num
]);
6361 #ifdef HAVE_WINDOW_SYSTEM
6364 char *name
= x_get_keysym_name (symbol_num
);
6366 value
= intern (name
);
6373 sprintf (buf
, "key-%d", symbol_num
);
6374 value
= intern (buf
);
6377 if (CONSP (*symbol_table
))
6378 *symbol_table
= Fcons (Fcons (symbol_int
, value
), *symbol_table
);
6380 XVECTOR (*symbol_table
)->contents
[symbol_num
] = value
;
6382 /* Fill in the cache entries for this symbol; this also
6383 builds the Qevent_symbol_elements property, which the user
6385 apply_modifiers (modifiers
& click_modifier
, value
);
6386 Fput (value
, Qevent_kind
, symbol_kind
);
6389 /* Apply modifiers to that symbol. */
6390 return apply_modifiers (modifiers
, value
);
6393 /* Convert a list that represents an event type,
6394 such as (ctrl meta backspace), into the usual representation of that
6395 event type as a number or a symbol. */
6397 DEFUN ("event-convert-list", Fevent_convert_list
, Sevent_convert_list
, 1, 1, 0,
6398 doc
: /* Convert the event description list EVENT-DESC to an event type.
6399 EVENT-DESC should contain one base event type (a character or symbol)
6400 and zero or more modifier names (control, meta, hyper, super, shift, alt,
6401 drag, down, double or triple). The base must be last.
6402 The return value is an event type (a character or symbol) which
6403 has the same base event type and all the specified modifiers. */)
6405 Lisp_Object event_desc
;
6413 while (CONSP (rest
))
6421 /* Given a symbol, see if it is a modifier name. */
6422 if (SYMBOLP (elt
) && CONSP (rest
))
6423 this = parse_solitary_modifier (elt
);
6427 else if (!NILP (base
))
6428 error ("Two bases given in one event");
6434 /* Let the symbol A refer to the character A. */
6435 if (SYMBOLP (base
) && SCHARS (SYMBOL_NAME (base
)) == 1)
6436 XSETINT (base
, SREF (SYMBOL_NAME (base
), 0));
6438 if (INTEGERP (base
))
6440 /* Turn (shift a) into A. */
6441 if ((modifiers
& shift_modifier
) != 0
6442 && (XINT (base
) >= 'a' && XINT (base
) <= 'z'))
6444 XSETINT (base
, XINT (base
) - ('a' - 'A'));
6445 modifiers
&= ~shift_modifier
;
6448 /* Turn (control a) into C-a. */
6449 if (modifiers
& ctrl_modifier
)
6450 return make_number ((modifiers
& ~ctrl_modifier
)
6451 | make_ctrl_char (XINT (base
)));
6453 return make_number (modifiers
| XINT (base
));
6455 else if (SYMBOLP (base
))
6456 return apply_modifiers (modifiers
, base
);
6459 error ("Invalid base event");
6464 /* Try to recognize SYMBOL as a modifier name.
6465 Return the modifier flag bit, or 0 if not recognized. */
6468 parse_solitary_modifier (symbol
)
6471 Lisp_Object name
= SYMBOL_NAME (symbol
);
6473 switch (SREF (name
, 0))
6475 #define SINGLE_LETTER_MOD(BIT) \
6476 if (SBYTES (name) == 1) \
6479 #define MULTI_LETTER_MOD(BIT, NAME, LEN) \
6480 if (LEN == SBYTES (name) \
6481 && ! strncmp (SDATA (name), NAME, LEN)) \
6485 SINGLE_LETTER_MOD (alt_modifier
);
6489 MULTI_LETTER_MOD (alt_modifier
, "alt", 3);
6493 SINGLE_LETTER_MOD (ctrl_modifier
);
6497 MULTI_LETTER_MOD (ctrl_modifier
, "ctrl", 4);
6498 MULTI_LETTER_MOD (ctrl_modifier
, "control", 7);
6502 SINGLE_LETTER_MOD (hyper_modifier
);
6506 MULTI_LETTER_MOD (hyper_modifier
, "hyper", 5);
6510 SINGLE_LETTER_MOD (meta_modifier
);
6514 MULTI_LETTER_MOD (meta_modifier
, "meta", 4);
6518 SINGLE_LETTER_MOD (shift_modifier
);
6522 MULTI_LETTER_MOD (shift_modifier
, "shift", 5);
6523 MULTI_LETTER_MOD (super_modifier
, "super", 5);
6524 SINGLE_LETTER_MOD (super_modifier
);
6528 MULTI_LETTER_MOD (drag_modifier
, "drag", 4);
6529 MULTI_LETTER_MOD (down_modifier
, "down", 4);
6530 MULTI_LETTER_MOD (double_modifier
, "double", 6);
6534 MULTI_LETTER_MOD (triple_modifier
, "triple", 6);
6537 #undef SINGLE_LETTER_MOD
6538 #undef MULTI_LETTER_MOD
6544 /* Return 1 if EVENT is a list whose elements are all integers or symbols.
6545 Such a list is not valid as an event,
6546 but it can be a Lucid-style event type list. */
6549 lucid_event_type_list_p (object
)
6554 if (! CONSP (object
))
6557 if (EQ (XCAR (object
), Qhelp_echo
)
6558 || EQ (XCAR (object
), Qvertical_line
)
6559 || EQ (XCAR (object
), Qmode_line
)
6560 || EQ (XCAR (object
), Qheader_line
))
6563 for (tail
= object
; CONSP (tail
); tail
= XCDR (tail
))
6567 if (! (INTEGERP (elt
) || SYMBOLP (elt
)))
6574 /* Store into *addr a value nonzero if terminal input chars are available.
6575 Serves the purpose of ioctl (0, FIONREAD, addr)
6576 but works even if FIONREAD does not exist.
6577 (In fact, this may actually read some input.)
6579 If READABLE_EVENTS_DO_TIMERS_NOW is set in FLAGS, actually run
6580 timer events that are ripe.
6581 If READABLE_EVENTS_FILTER_EVENTS is set in FLAGS, ignore internal
6582 events (FOCUS_IN_EVENT).
6583 If READABLE_EVENTS_IGNORE_SQUEEZABLES is set in FLAGS, ignore mouse
6584 movements and toolkit scroll bar thumb drags. */
6587 get_input_pending (addr
, flags
)
6591 /* First of all, have we already counted some input? */
6592 *addr
= (!NILP (Vquit_flag
) || readable_events (flags
));
6594 /* If input is being read as it arrives, and we have none, there is none. */
6595 if (*addr
> 0 || (interrupt_input
&& ! interrupts_deferred
))
6598 /* Try to read some input and see how much we get. */
6600 *addr
= (!NILP (Vquit_flag
) || readable_events (flags
));
6603 /* Interface to read_avail_input, blocking SIGIO or SIGALRM if necessary. */
6606 gobble_input (expected
)
6611 if (interrupt_input
)
6614 mask
= sigblock (sigmask (SIGIO
));
6615 read_avail_input (expected
);
6619 #ifdef POLL_FOR_INPUT
6620 if (read_socket_hook
&& !interrupt_input
&& poll_suppress_count
== 0)
6623 mask
= sigblock (sigmask (SIGALRM
));
6624 read_avail_input (expected
);
6630 read_avail_input (expected
);
6634 /* Put a BUFFER_SWITCH_EVENT in the buffer
6635 so that read_key_sequence will notice the new current buffer. */
6638 record_asynch_buffer_change ()
6640 struct input_event event
;
6644 event
.kind
= BUFFER_SWITCH_EVENT
;
6645 event
.frame_or_window
= Qnil
;
6649 /* We don't need a buffer-switch event unless Emacs is waiting for input.
6650 The purpose of the event is to make read_key_sequence look up the
6651 keymaps again. If we aren't in read_key_sequence, we don't need one,
6652 and the event could cause trouble by messing up (input-pending-p). */
6653 tem
= Fwaiting_for_user_input_p ();
6657 /* We never need these events if we have no asynchronous subprocesses. */
6661 /* Make sure no interrupt happens while storing the event. */
6663 if (interrupt_input
)
6666 mask
= sigblock (sigmask (SIGIO
));
6667 kbd_buffer_store_event (&event
);
6674 kbd_buffer_store_event (&event
);
6681 /* Read any terminal input already buffered up by the system
6682 into the kbd_buffer, but do not wait.
6684 EXPECTED should be nonzero if the caller knows there is some input.
6686 Except on VMS, all input is read by this function.
6687 If interrupt_input is nonzero, this function MUST be called
6688 only when SIGIO is blocked.
6690 Returns the number of keyboard chars read, or -1 meaning
6691 this is a bad time to try to read input. */
6694 read_avail_input (expected
)
6700 if (read_socket_hook
)
6703 struct input_event hold_quit
;
6705 EVENT_INIT (hold_quit
);
6706 hold_quit
.kind
= NO_EVENT
;
6708 /* No need for FIONREAD or fcntl; just say don't wait. */
6709 while (nr
= (*read_socket_hook
) (input_fd
, expected
, &hold_quit
), nr
> 0)
6714 if (hold_quit
.kind
!= NO_EVENT
)
6715 kbd_buffer_store_event (&hold_quit
);
6719 /* Using KBD_BUFFER_SIZE - 1 here avoids reading more than
6720 the kbd_buffer can really hold. That may prevent loss
6721 of characters on some systems when input is stuffed at us. */
6722 unsigned char cbuf
[KBD_BUFFER_SIZE
- 1];
6725 /* Determine how many characters we should *try* to read. */
6728 #else /* not WINDOWSNT */
6730 n_to_read
= dos_keysns ();
6733 #else /* not MSDOS */
6735 /* Find out how much input is available. */
6736 if (ioctl (input_fd
, FIONREAD
, &n_to_read
) < 0)
6737 /* Formerly simply reported no input, but that sometimes led to
6738 a failure of Emacs to terminate.
6739 SIGHUP seems appropriate if we can't reach the terminal. */
6740 /* ??? Is it really right to send the signal just to this process
6741 rather than to the whole process group?
6742 Perhaps on systems with FIONREAD Emacs is alone in its group. */
6744 if (! noninteractive
)
6745 kill (getpid (), SIGHUP
);
6751 if (n_to_read
> sizeof cbuf
)
6752 n_to_read
= sizeof cbuf
;
6753 #else /* no FIONREAD */
6754 #if defined (USG) || defined (DGUX) || defined(CYGWIN)
6755 /* Read some input if available, but don't wait. */
6756 n_to_read
= sizeof cbuf
;
6757 fcntl (input_fd
, F_SETFL
, O_NDELAY
);
6762 #endif /* not MSDOS */
6763 #endif /* not WINDOWSNT */
6765 /* Now read; for one reason or another, this will not block.
6766 NREAD is set to the number of chars read. */
6770 cbuf
[0] = dos_keyread ();
6773 nread
= emacs_read (input_fd
, cbuf
, n_to_read
);
6775 /* POSIX infers that processes which are not in the session leader's
6776 process group won't get SIGHUP's at logout time. BSDI adheres to
6777 this part standard and returns -1 from read (0) with errno==EIO
6778 when the control tty is taken away.
6779 Jeffrey Honig <jch@bsdi.com> says this is generally safe. */
6780 if (nread
== -1 && errno
== EIO
)
6782 #if defined (AIX) && (! defined (aix386) && defined (_BSD))
6783 /* The kernel sometimes fails to deliver SIGHUP for ptys.
6784 This looks incorrect, but it isn't, because _BSD causes
6785 O_NDELAY to be defined in fcntl.h as O_NONBLOCK,
6786 and that causes a value other than 0 when there is no input. */
6792 /* We used to retry the read if it was interrupted.
6793 But this does the wrong thing when O_NDELAY causes
6794 an EAGAIN error. Does anybody know of a situation
6795 where a retry is actually needed? */
6797 nread
< 0 && (errno
== EAGAIN
6811 #if defined (USG) || defined (DGUX) || defined (CYGWIN)
6812 fcntl (input_fd
, F_SETFL
, 0);
6813 #endif /* USG or DGUX or CYGWIN */
6814 #endif /* no FIONREAD */
6815 for (i
= 0; i
< nread
; i
++)
6817 struct input_event buf
;
6819 buf
.kind
= ASCII_KEYSTROKE_EVENT
;
6821 if (meta_key
== 1 && (cbuf
[i
] & 0x80))
6822 buf
.modifiers
= meta_modifier
;
6827 buf
.frame_or_window
= selected_frame
;
6830 kbd_buffer_store_event (&buf
);
6831 /* Don't look at input that follows a C-g too closely.
6832 This reduces lossage due to autorepeat on C-g. */
6833 if (buf
.kind
== ASCII_KEYSTROKE_EVENT
6834 && buf
.code
== quit_char
)
6841 #endif /* not VMS */
6844 handle_async_input ()
6847 extern int select_alarmed
;
6850 interrupt_input_pending
= 0;
6855 nread
= read_avail_input (1);
6856 /* -1 means it's not ok to read the input now.
6857 UNBLOCK_INPUT will read it later; now, avoid infinite loop.
6858 0 means there was no keyboard input available. */
6863 select_alarmed
= 1; /* Force the select emulator back to life */
6868 #ifdef SIGIO /* for entire page */
6869 /* Note SIGIO has been undef'd if FIONREAD is missing. */
6872 input_available_signal (signo
)
6875 /* Must preserve main program's value of errno. */
6876 int old_errno
= errno
;
6877 #if defined (USG) && !defined (POSIX_SIGNALS)
6878 /* USG systems forget handlers when they are used;
6879 must reestablish each time */
6880 signal (signo
, input_available_signal
);
6888 interrupt_input_pending
= 1;
6890 SIGNAL_THREAD_CHECK (signo
);
6893 if (input_available_clear_time
)
6894 EMACS_SET_SECS_USECS (*input_available_clear_time
, 0, 0);
6897 handle_async_input ();
6907 /* Send ourselves a SIGIO.
6909 This function exists so that the UNBLOCK_INPUT macro in
6910 blockinput.h can have some way to take care of input we put off
6911 dealing with, without assuming that every file which uses
6912 UNBLOCK_INPUT also has #included the files necessary to get SIGIO. */
6914 reinvoke_input_signal ()
6917 handle_async_input ();
6923 static void menu_bar_item
P_ ((Lisp_Object
, Lisp_Object
, Lisp_Object
, void*));
6924 static Lisp_Object menu_bar_one_keymap_changed_items
;
6926 /* These variables hold the vector under construction within
6927 menu_bar_items and its subroutines, and the current index
6928 for storing into that vector. */
6929 static Lisp_Object menu_bar_items_vector
;
6930 static int menu_bar_items_index
;
6932 /* Return a vector of menu items for a menu bar, appropriate
6933 to the current buffer. Each item has three elements in the vector:
6936 OLD is an old vector we can optionally reuse, or nil. */
6939 menu_bar_items (old
)
6942 /* The number of keymaps we're scanning right now, and the number of
6943 keymaps we have allocated space for. */
6946 /* maps[0..nmaps-1] are the prefix definitions of KEYBUF[0..t-1]
6947 in the current keymaps, or nil where it is not a prefix. */
6950 Lisp_Object def
, tail
;
6959 /* In order to build the menus, we need to call the keymap
6960 accessors. They all call QUIT. But this function is called
6961 during redisplay, during which a quit is fatal. So inhibit
6962 quitting while building the menus.
6963 We do this instead of specbind because (1) errors will clear it anyway
6964 and (2) this avoids risk of specpdl overflow. */
6965 oquit
= Vinhibit_quit
;
6969 menu_bar_items_vector
= old
;
6971 menu_bar_items_vector
= Fmake_vector (make_number (24), Qnil
);
6972 menu_bar_items_index
= 0;
6974 /* Build our list of keymaps.
6975 If we recognize a function key and replace its escape sequence in
6976 keybuf with its symbol, or if the sequence starts with a mouse
6977 click and we need to switch buffers, we jump back here to rebuild
6978 the initial keymaps from the current buffer. */
6982 /* Should overriding-terminal-local-map and overriding-local-map apply? */
6983 if (!NILP (Voverriding_local_map_menu_flag
))
6985 /* Yes, use them (if non-nil) as well as the global map. */
6986 maps
= (Lisp_Object
*) alloca (3 * sizeof (maps
[0]));
6988 if (!NILP (current_kboard
->Voverriding_terminal_local_map
))
6989 maps
[nmaps
++] = current_kboard
->Voverriding_terminal_local_map
;
6990 if (!NILP (Voverriding_local_map
))
6991 maps
[nmaps
++] = Voverriding_local_map
;
6995 /* No, so use major and minor mode keymaps and keymap property.
6996 Note that menu-bar bindings in the local-map and keymap
6997 properties may not work reliable, as they are only
6998 recognized when the menu-bar (or mode-line) is updated,
6999 which does not normally happen after every command. */
7002 nminor
= current_minor_maps (NULL
, &tmaps
);
7003 maps
= (Lisp_Object
*) alloca ((nminor
+ 3) * sizeof (maps
[0]));
7005 if (tem
= get_local_map (PT
, current_buffer
, Qkeymap
), !NILP (tem
))
7006 maps
[nmaps
++] = tem
;
7007 bcopy (tmaps
, (void *) (maps
+ nmaps
), nminor
* sizeof (maps
[0]));
7009 maps
[nmaps
++] = get_local_map (PT
, current_buffer
, Qlocal_map
);
7011 maps
[nmaps
++] = current_global_map
;
7014 /* Look up in each map the dummy prefix key `menu-bar'. */
7018 for (mapno
= nmaps
- 1; mapno
>= 0; mapno
--)
7019 if (!NILP (maps
[mapno
]))
7021 def
= get_keymap (access_keymap (maps
[mapno
], Qmenu_bar
, 1, 0, 1),
7025 menu_bar_one_keymap_changed_items
= Qnil
;
7026 map_keymap (def
, menu_bar_item
, Qnil
, NULL
, 1);
7030 /* Move to the end those items that should be at the end. */
7032 for (tail
= Vmenu_bar_final_items
; CONSP (tail
); tail
= XCDR (tail
))
7035 int end
= menu_bar_items_index
;
7037 for (i
= 0; i
< end
; i
+= 4)
7038 if (EQ (XCAR (tail
), XVECTOR (menu_bar_items_vector
)->contents
[i
]))
7040 Lisp_Object tem0
, tem1
, tem2
, tem3
;
7041 /* Move the item at index I to the end,
7042 shifting all the others forward. */
7043 tem0
= XVECTOR (menu_bar_items_vector
)->contents
[i
+ 0];
7044 tem1
= XVECTOR (menu_bar_items_vector
)->contents
[i
+ 1];
7045 tem2
= XVECTOR (menu_bar_items_vector
)->contents
[i
+ 2];
7046 tem3
= XVECTOR (menu_bar_items_vector
)->contents
[i
+ 3];
7048 bcopy (&XVECTOR (menu_bar_items_vector
)->contents
[i
+ 4],
7049 &XVECTOR (menu_bar_items_vector
)->contents
[i
],
7050 (end
- i
- 4) * sizeof (Lisp_Object
));
7051 XVECTOR (menu_bar_items_vector
)->contents
[end
- 4] = tem0
;
7052 XVECTOR (menu_bar_items_vector
)->contents
[end
- 3] = tem1
;
7053 XVECTOR (menu_bar_items_vector
)->contents
[end
- 2] = tem2
;
7054 XVECTOR (menu_bar_items_vector
)->contents
[end
- 1] = tem3
;
7059 /* Add nil, nil, nil, nil at the end. */
7060 i
= menu_bar_items_index
;
7061 if (i
+ 4 > XVECTOR (menu_bar_items_vector
)->size
)
7064 tem
= Fmake_vector (make_number (2 * i
), Qnil
);
7065 bcopy (XVECTOR (menu_bar_items_vector
)->contents
,
7066 XVECTOR (tem
)->contents
, i
* sizeof (Lisp_Object
));
7067 menu_bar_items_vector
= tem
;
7069 /* Add this item. */
7070 XVECTOR (menu_bar_items_vector
)->contents
[i
++] = Qnil
;
7071 XVECTOR (menu_bar_items_vector
)->contents
[i
++] = Qnil
;
7072 XVECTOR (menu_bar_items_vector
)->contents
[i
++] = Qnil
;
7073 XVECTOR (menu_bar_items_vector
)->contents
[i
++] = Qnil
;
7074 menu_bar_items_index
= i
;
7076 Vinhibit_quit
= oquit
;
7077 return menu_bar_items_vector
;
7080 /* Add one item to menu_bar_items_vector, for KEY, ITEM_STRING and DEF.
7081 If there's already an item for KEY, add this DEF to it. */
7083 Lisp_Object item_properties
;
7086 menu_bar_item (key
, item
, dummy1
, dummy2
)
7087 Lisp_Object key
, item
, dummy1
;
7090 struct gcpro gcpro1
;
7094 if (EQ (item
, Qundefined
))
7096 /* If a map has an explicit `undefined' as definition,
7097 discard any previously made menu bar item. */
7099 for (i
= 0; i
< menu_bar_items_index
; i
+= 4)
7100 if (EQ (key
, XVECTOR (menu_bar_items_vector
)->contents
[i
]))
7102 if (menu_bar_items_index
> i
+ 4)
7103 bcopy (&XVECTOR (menu_bar_items_vector
)->contents
[i
+ 4],
7104 &XVECTOR (menu_bar_items_vector
)->contents
[i
],
7105 (menu_bar_items_index
- i
- 4) * sizeof (Lisp_Object
));
7106 menu_bar_items_index
-= 4;
7110 /* If this keymap has already contributed to this KEY,
7111 don't contribute to it a second time. */
7112 tem
= Fmemq (key
, menu_bar_one_keymap_changed_items
);
7113 if (!NILP (tem
) || NILP (item
))
7116 menu_bar_one_keymap_changed_items
7117 = Fcons (key
, menu_bar_one_keymap_changed_items
);
7119 /* We add to menu_bar_one_keymap_changed_items before doing the
7120 parse_menu_item, so that if it turns out it wasn't a menu item,
7121 it still correctly hides any further menu item. */
7123 i
= parse_menu_item (item
, 0, 1);
7128 item
= XVECTOR (item_properties
)->contents
[ITEM_PROPERTY_DEF
];
7130 /* Find any existing item for this KEY. */
7131 for (i
= 0; i
< menu_bar_items_index
; i
+= 4)
7132 if (EQ (key
, XVECTOR (menu_bar_items_vector
)->contents
[i
]))
7135 /* If we did not find this KEY, add it at the end. */
7136 if (i
== menu_bar_items_index
)
7138 /* If vector is too small, get a bigger one. */
7139 if (i
+ 4 > XVECTOR (menu_bar_items_vector
)->size
)
7142 tem
= Fmake_vector (make_number (2 * i
), Qnil
);
7143 bcopy (XVECTOR (menu_bar_items_vector
)->contents
,
7144 XVECTOR (tem
)->contents
, i
* sizeof (Lisp_Object
));
7145 menu_bar_items_vector
= tem
;
7148 /* Add this item. */
7149 XVECTOR (menu_bar_items_vector
)->contents
[i
++] = key
;
7150 XVECTOR (menu_bar_items_vector
)->contents
[i
++]
7151 = XVECTOR (item_properties
)->contents
[ITEM_PROPERTY_NAME
];
7152 XVECTOR (menu_bar_items_vector
)->contents
[i
++] = Fcons (item
, Qnil
);
7153 XVECTOR (menu_bar_items_vector
)->contents
[i
++] = make_number (0);
7154 menu_bar_items_index
= i
;
7156 /* We did find an item for this KEY. Add ITEM to its list of maps. */
7160 old
= XVECTOR (menu_bar_items_vector
)->contents
[i
+ 2];
7161 /* If the new and the old items are not both keymaps,
7162 the lookup will only find `item'. */
7163 item
= Fcons (item
, KEYMAPP (item
) && KEYMAPP (XCAR (old
)) ? old
: Qnil
);
7164 XVECTOR (menu_bar_items_vector
)->contents
[i
+ 2] = item
;
7168 /* This is used as the handler when calling menu_item_eval_property. */
7170 menu_item_eval_property_1 (arg
)
7173 /* If we got a quit from within the menu computation,
7174 quit all the way out of it. This takes care of C-] in the debugger. */
7175 if (CONSP (arg
) && EQ (XCAR (arg
), Qquit
))
7176 Fsignal (Qquit
, Qnil
);
7181 /* Evaluate an expression and return the result (or nil if something
7182 went wrong). Used to evaluate dynamic parts of menu items. */
7184 menu_item_eval_property (sexpr
)
7187 int count
= SPECPDL_INDEX ();
7189 specbind (Qinhibit_redisplay
, Qt
);
7190 val
= internal_condition_case_1 (Feval
, sexpr
, Qerror
,
7191 menu_item_eval_property_1
);
7192 return unbind_to (count
, val
);
7195 /* This function parses a menu item and leaves the result in the
7196 vector item_properties.
7197 ITEM is a key binding, a possible menu item.
7198 If NOTREAL is nonzero, only check for equivalent key bindings, don't
7199 evaluate dynamic expressions in the menu item.
7200 INMENUBAR is > 0 when this is considered for an entry in a menu bar
7202 INMENUBAR is < 0 when this is considered for an entry in a keyboard menu.
7203 parse_menu_item returns true if the item is a menu item and false
7207 parse_menu_item (item
, notreal
, inmenubar
)
7209 int notreal
, inmenubar
;
7211 Lisp_Object def
, tem
, item_string
, start
;
7212 Lisp_Object cachelist
;
7214 Lisp_Object keyhint
;
7225 /* Create item_properties vector if necessary. */
7226 if (NILP (item_properties
))
7228 = Fmake_vector (make_number (ITEM_PROPERTY_ENABLE
+ 1), Qnil
);
7230 /* Initialize optional entries. */
7231 for (i
= ITEM_PROPERTY_DEF
; i
< ITEM_PROPERTY_ENABLE
; i
++)
7232 AREF (item_properties
, i
) = Qnil
;
7233 AREF (item_properties
, ITEM_PROPERTY_ENABLE
) = Qt
;
7235 /* Save the item here to protect it from GC. */
7236 AREF (item_properties
, ITEM_PROPERTY_ITEM
) = item
;
7238 item_string
= XCAR (item
);
7242 if (STRINGP (item_string
))
7244 /* Old format menu item. */
7245 AREF (item_properties
, ITEM_PROPERTY_NAME
) = item_string
;
7247 /* Maybe help string. */
7248 if (CONSP (item
) && STRINGP (XCAR (item
)))
7250 AREF (item_properties
, ITEM_PROPERTY_HELP
) = XCAR (item
);
7255 /* Maybe key binding cache. */
7256 if (CONSP (item
) && CONSP (XCAR (item
))
7257 && (NILP (XCAR (XCAR (item
)))
7258 || VECTORP (XCAR (XCAR (item
)))))
7260 cachelist
= XCAR (item
);
7264 /* This is the real definition--the function to run. */
7265 AREF (item_properties
, ITEM_PROPERTY_DEF
) = item
;
7267 /* Get enable property, if any. */
7270 tem
= Fget (item
, Qmenu_enable
);
7272 AREF (item_properties
, ITEM_PROPERTY_ENABLE
) = tem
;
7275 else if (EQ (item_string
, Qmenu_item
) && CONSP (item
))
7277 /* New format menu item. */
7278 AREF (item_properties
, ITEM_PROPERTY_NAME
) = XCAR (item
);
7279 start
= XCDR (item
);
7282 /* We have a real binding. */
7283 AREF (item_properties
, ITEM_PROPERTY_DEF
) = XCAR (start
);
7285 item
= XCDR (start
);
7286 /* Is there a cache list with key equivalences. */
7287 if (CONSP (item
) && CONSP (XCAR (item
)))
7289 cachelist
= XCAR (item
);
7293 /* Parse properties. */
7294 while (CONSP (item
) && CONSP (XCDR (item
)))
7299 if (EQ (tem
, QCenable
))
7300 AREF (item_properties
, ITEM_PROPERTY_ENABLE
) = XCAR (item
);
7301 else if (EQ (tem
, QCvisible
) && !notreal
)
7303 /* If got a visible property and that evaluates to nil
7304 then ignore this item. */
7305 tem
= menu_item_eval_property (XCAR (item
));
7309 else if (EQ (tem
, QChelp
))
7310 AREF (item_properties
, ITEM_PROPERTY_HELP
) = XCAR (item
);
7311 else if (EQ (tem
, QCfilter
))
7313 else if (EQ (tem
, QCkey_sequence
))
7316 if (NILP (cachelist
)
7317 && (SYMBOLP (tem
) || STRINGP (tem
) || VECTORP (tem
)))
7318 /* Be GC protected. Set keyhint to item instead of tem. */
7321 else if (EQ (tem
, QCkeys
))
7324 if (CONSP (tem
) || (STRINGP (tem
) && NILP (cachelist
)))
7325 AREF (item_properties
, ITEM_PROPERTY_KEYEQ
) = tem
;
7327 else if (EQ (tem
, QCbutton
) && CONSP (XCAR (item
)))
7332 if (EQ (type
, QCtoggle
) || EQ (type
, QCradio
))
7334 AREF (item_properties
, ITEM_PROPERTY_SELECTED
)
7336 AREF (item_properties
, ITEM_PROPERTY_TYPE
)
7343 else if (inmenubar
|| !NILP (start
))
7347 return 0; /* not a menu item */
7349 /* If item string is not a string, evaluate it to get string.
7350 If we don't get a string, skip this item. */
7351 item_string
= AREF (item_properties
, ITEM_PROPERTY_NAME
);
7352 if (!(STRINGP (item_string
) || notreal
))
7354 item_string
= menu_item_eval_property (item_string
);
7355 if (!STRINGP (item_string
))
7357 AREF (item_properties
, ITEM_PROPERTY_NAME
) = item_string
;
7360 /* If got a filter apply it on definition. */
7361 def
= AREF (item_properties
, ITEM_PROPERTY_DEF
);
7364 def
= menu_item_eval_property (list2 (XCAR (filter
),
7365 list2 (Qquote
, def
)));
7367 AREF (item_properties
, ITEM_PROPERTY_DEF
) = def
;
7370 /* Enable or disable selection of item. */
7371 tem
= AREF (item_properties
, ITEM_PROPERTY_ENABLE
);
7377 tem
= menu_item_eval_property (tem
);
7378 if (inmenubar
&& NILP (tem
))
7379 return 0; /* Ignore disabled items in menu bar. */
7380 AREF (item_properties
, ITEM_PROPERTY_ENABLE
) = tem
;
7383 /* If we got no definition, this item is just unselectable text which
7384 is OK in a submenu but not in the menubar. */
7386 return (inmenubar
? 0 : 1);
7388 /* See if this is a separate pane or a submenu. */
7389 def
= AREF (item_properties
, ITEM_PROPERTY_DEF
);
7390 tem
= get_keymap (def
, 0, 1);
7391 /* For a subkeymap, just record its details and exit. */
7394 AREF (item_properties
, ITEM_PROPERTY_MAP
) = tem
;
7395 AREF (item_properties
, ITEM_PROPERTY_DEF
) = tem
;
7399 /* At the top level in the menu bar, do likewise for commands also.
7400 The menu bar does not display equivalent key bindings anyway.
7401 ITEM_PROPERTY_DEF is already set up properly. */
7405 /* This is a command. See if there is an equivalent key binding. */
7406 if (NILP (cachelist
))
7408 /* We have to create a cachelist. */
7409 CHECK_IMPURE (start
);
7410 XSETCDR (start
, Fcons (Fcons (Qnil
, Qnil
), XCDR (start
)));
7411 cachelist
= XCAR (XCDR (start
));
7413 tem
= AREF (item_properties
, ITEM_PROPERTY_KEYEQ
);
7414 if (!NILP (keyhint
))
7416 XSETCAR (cachelist
, XCAR (keyhint
));
7419 else if (STRINGP (tem
))
7421 XSETCDR (cachelist
, Fsubstitute_command_keys (tem
));
7422 XSETCAR (cachelist
, Qt
);
7426 tem
= XCAR (cachelist
);
7433 tem
= Fkey_binding (tem
, Qnil
, Qnil
);
7435 prefix
= AREF (item_properties
, ITEM_PROPERTY_KEYEQ
);
7438 def
= XCAR (prefix
);
7439 prefix
= XCDR (prefix
);
7442 def
= AREF (item_properties
, ITEM_PROPERTY_DEF
);
7444 if (NILP (XCAR (cachelist
))) /* Have no saved key. */
7446 if (newcache
/* Always check first time. */
7447 /* Should we check everything when precomputing key
7449 /* If something had no key binding before, don't recheck it
7450 because that is too slow--except if we have a list of
7451 rebound commands in Vdefine_key_rebound_commands, do
7452 recheck any command that appears in that list. */
7453 || (CONSP (Vdefine_key_rebound_commands
)
7454 && !NILP (Fmemq (def
, Vdefine_key_rebound_commands
))))
7457 /* We had a saved key. Is it still bound to the command? */
7460 /* If the command is an alias for another
7461 (such as lmenu.el set it up), check if the
7462 original command matches the cached command. */
7463 && !(SYMBOLP (def
) && EQ (tem
, XSYMBOL (def
)->function
))))
7464 chkcache
= 1; /* Need to recompute key binding. */
7468 /* Recompute equivalent key binding. If the command is an alias
7469 for another (such as lmenu.el set it up), see if the original
7470 command name has equivalent keys. Otherwise look up the
7471 specified command itself. We don't try both, because that
7472 makes lmenu menus slow. */
7474 && SYMBOLP (XSYMBOL (def
)->function
)
7475 && ! NILP (Fget (def
, Qmenu_alias
)))
7476 def
= XSYMBOL (def
)->function
;
7477 tem
= Fwhere_is_internal (def
, Qnil
, Qt
, Qnil
, Qt
);
7478 XSETCAR (cachelist
, tem
);
7481 XSETCDR (cachelist
, Qnil
);
7485 else if (!NILP (keyhint
) && !NILP (XCAR (cachelist
)))
7487 tem
= XCAR (cachelist
);
7491 newcache
= chkcache
;
7494 tem
= Fkey_description (tem
, Qnil
);
7497 if (STRINGP (XCAR (prefix
)))
7498 tem
= concat2 (XCAR (prefix
), tem
);
7499 if (STRINGP (XCDR (prefix
)))
7500 tem
= concat2 (tem
, XCDR (prefix
));
7502 XSETCDR (cachelist
, tem
);
7506 tem
= XCDR (cachelist
);
7507 if (newcache
&& !NILP (tem
))
7509 tem
= concat3 (build_string (" ("), tem
, build_string (")"));
7510 XSETCDR (cachelist
, tem
);
7513 /* If we only want to precompute equivalent key bindings, stop here. */
7517 /* If we have an equivalent key binding, use that. */
7518 AREF (item_properties
, ITEM_PROPERTY_KEYEQ
) = tem
;
7520 /* Include this when menu help is implemented.
7521 tem = XVECTOR (item_properties)->contents[ITEM_PROPERTY_HELP];
7522 if (!(NILP (tem) || STRINGP (tem)))
7524 tem = menu_item_eval_property (tem);
7527 XVECTOR (item_properties)->contents[ITEM_PROPERTY_HELP] = tem;
7531 /* Handle radio buttons or toggle boxes. */
7532 tem
= AREF (item_properties
, ITEM_PROPERTY_SELECTED
);
7534 AREF (item_properties
, ITEM_PROPERTY_SELECTED
)
7535 = menu_item_eval_property (tem
);
7542 /***********************************************************************
7544 ***********************************************************************/
7546 /* A vector holding tool bar items while they are parsed in function
7547 tool_bar_items. Each item occupies TOOL_BAR_ITEM_NSCLOTS elements
7550 static Lisp_Object tool_bar_items_vector
;
7552 /* A vector holding the result of parse_tool_bar_item. Layout is like
7553 the one for a single item in tool_bar_items_vector. */
7555 static Lisp_Object tool_bar_item_properties
;
7557 /* Next free index in tool_bar_items_vector. */
7559 static int ntool_bar_items
;
7561 /* The symbols `tool-bar', and `:image'. */
7563 extern Lisp_Object Qtool_bar
;
7564 Lisp_Object QCimage
;
7566 /* Function prototypes. */
7568 static void init_tool_bar_items
P_ ((Lisp_Object
));
7569 static void process_tool_bar_item
P_ ((Lisp_Object
, Lisp_Object
));
7570 static int parse_tool_bar_item
P_ ((Lisp_Object
, Lisp_Object
));
7571 static void append_tool_bar_item
P_ ((void));
7574 /* Return a vector of tool bar items for keymaps currently in effect.
7575 Reuse vector REUSE if non-nil. Return in *NITEMS the number of
7576 tool bar items found. */
7579 tool_bar_items (reuse
, nitems
)
7590 /* In order to build the menus, we need to call the keymap
7591 accessors. They all call QUIT. But this function is called
7592 during redisplay, during which a quit is fatal. So inhibit
7593 quitting while building the menus. We do this instead of
7594 specbind because (1) errors will clear it anyway and (2) this
7595 avoids risk of specpdl overflow. */
7596 oquit
= Vinhibit_quit
;
7599 /* Initialize tool_bar_items_vector and protect it from GC. */
7600 init_tool_bar_items (reuse
);
7602 /* Build list of keymaps in maps. Set nmaps to the number of maps
7605 /* Should overriding-terminal-local-map and overriding-local-map apply? */
7606 if (!NILP (Voverriding_local_map_menu_flag
))
7608 /* Yes, use them (if non-nil) as well as the global map. */
7609 maps
= (Lisp_Object
*) alloca (3 * sizeof (maps
[0]));
7611 if (!NILP (current_kboard
->Voverriding_terminal_local_map
))
7612 maps
[nmaps
++] = current_kboard
->Voverriding_terminal_local_map
;
7613 if (!NILP (Voverriding_local_map
))
7614 maps
[nmaps
++] = Voverriding_local_map
;
7618 /* No, so use major and minor mode keymaps and keymap property.
7619 Note that tool-bar bindings in the local-map and keymap
7620 properties may not work reliable, as they are only
7621 recognized when the tool-bar (or mode-line) is updated,
7622 which does not normally happen after every command. */
7625 nminor
= current_minor_maps (NULL
, &tmaps
);
7626 maps
= (Lisp_Object
*) alloca ((nminor
+ 3) * sizeof (maps
[0]));
7628 if (tem
= get_local_map (PT
, current_buffer
, Qkeymap
), !NILP (tem
))
7629 maps
[nmaps
++] = tem
;
7630 bcopy (tmaps
, (void *) (maps
+ nmaps
), nminor
* sizeof (maps
[0]));
7632 maps
[nmaps
++] = get_local_map (PT
, current_buffer
, Qlocal_map
);
7635 /* Add global keymap at the end. */
7636 maps
[nmaps
++] = current_global_map
;
7638 /* Process maps in reverse order and look up in each map the prefix
7640 for (i
= nmaps
- 1; i
>= 0; --i
)
7641 if (!NILP (maps
[i
]))
7645 keymap
= get_keymap (access_keymap (maps
[i
], Qtool_bar
, 1, 0, 1), 0, 1);
7650 /* KEYMAP is a list `(keymap (KEY . BINDING) ...)'. */
7651 for (tail
= keymap
; CONSP (tail
); tail
= XCDR (tail
))
7653 Lisp_Object keydef
= XCAR (tail
);
7655 process_tool_bar_item (XCAR (keydef
), XCDR (keydef
));
7660 Vinhibit_quit
= oquit
;
7661 *nitems
= ntool_bar_items
/ TOOL_BAR_ITEM_NSLOTS
;
7662 return tool_bar_items_vector
;
7666 /* Process the definition of KEY which is DEF. */
7669 process_tool_bar_item (key
, def
)
7670 Lisp_Object key
, def
;
7673 extern Lisp_Object Qundefined
;
7674 struct gcpro gcpro1
, gcpro2
;
7676 /* Protect KEY and DEF from GC because parse_tool_bar_item may call
7680 if (EQ (def
, Qundefined
))
7682 /* If a map has an explicit `undefined' as definition,
7683 discard any previously made item. */
7684 for (i
= 0; i
< ntool_bar_items
; i
+= TOOL_BAR_ITEM_NSLOTS
)
7686 Lisp_Object
*v
= XVECTOR (tool_bar_items_vector
)->contents
+ i
;
7688 if (EQ (key
, v
[TOOL_BAR_ITEM_KEY
]))
7690 if (ntool_bar_items
> i
+ TOOL_BAR_ITEM_NSLOTS
)
7691 bcopy (v
+ TOOL_BAR_ITEM_NSLOTS
, v
,
7692 ((ntool_bar_items
- i
- TOOL_BAR_ITEM_NSLOTS
)
7693 * sizeof (Lisp_Object
)));
7694 ntool_bar_items
-= TOOL_BAR_ITEM_NSLOTS
;
7699 else if (parse_tool_bar_item (key
, def
))
7700 /* Append a new tool bar item to tool_bar_items_vector. Accept
7701 more than one definition for the same key. */
7702 append_tool_bar_item ();
7708 /* Parse a tool bar item specification ITEM for key KEY and return the
7709 result in tool_bar_item_properties. Value is zero if ITEM is
7712 ITEM is a list `(menu-item CAPTION BINDING PROPS...)'.
7714 CAPTION is the caption of the item, If it's not a string, it is
7715 evaluated to get a string.
7717 BINDING is the tool bar item's binding. Tool-bar items with keymaps
7718 as binding are currently ignored.
7720 The following properties are recognized:
7724 FORM is evaluated and specifies whether the tool bar item is
7725 enabled or disabled.
7729 FORM is evaluated and specifies whether the tool bar item is visible.
7731 - `:filter FUNCTION'
7733 FUNCTION is invoked with one parameter `(quote BINDING)'. Its
7734 result is stored as the new binding.
7736 - `:button (TYPE SELECTED)'
7738 TYPE must be one of `:radio' or `:toggle'. SELECTED is evaluated
7739 and specifies whether the button is selected (pressed) or not.
7743 IMAGES is either a single image specification or a vector of four
7744 image specifications. See enum tool_bar_item_images.
7746 - `:help HELP-STRING'.
7748 Gives a help string to display for the tool bar item. */
7751 parse_tool_bar_item (key
, item
)
7752 Lisp_Object key
, item
;
7754 /* Access slot with index IDX of vector tool_bar_item_properties. */
7755 #define PROP(IDX) XVECTOR (tool_bar_item_properties)->contents[IDX]
7757 Lisp_Object filter
= Qnil
;
7758 Lisp_Object caption
;
7761 /* Defininition looks like `(menu-item CAPTION BINDING PROPS...)'.
7762 Rule out items that aren't lists, don't start with
7763 `menu-item' or whose rest following `tool-bar-item' is not a
7766 || !EQ (XCAR (item
), Qmenu_item
)
7767 || (item
= XCDR (item
),
7771 /* Create tool_bar_item_properties vector if necessary. Reset it to
7773 if (VECTORP (tool_bar_item_properties
))
7775 for (i
= 0; i
< TOOL_BAR_ITEM_NSLOTS
; ++i
)
7779 tool_bar_item_properties
7780 = Fmake_vector (make_number (TOOL_BAR_ITEM_NSLOTS
), Qnil
);
7783 PROP (TOOL_BAR_ITEM_KEY
) = key
;
7784 PROP (TOOL_BAR_ITEM_ENABLED_P
) = Qt
;
7786 /* Get the caption of the item. If the caption is not a string,
7787 evaluate it to get a string. If we don't get a string, skip this
7789 caption
= XCAR (item
);
7790 if (!STRINGP (caption
))
7792 caption
= menu_item_eval_property (caption
);
7793 if (!STRINGP (caption
))
7796 PROP (TOOL_BAR_ITEM_CAPTION
) = caption
;
7798 /* Give up if rest following the caption is not a list. */
7803 /* Store the binding. */
7804 PROP (TOOL_BAR_ITEM_BINDING
) = XCAR (item
);
7807 /* Ignore cached key binding, if any. */
7808 if (CONSP (item
) && CONSP (XCAR (item
)))
7811 /* Process the rest of the properties. */
7812 for (; CONSP (item
) && CONSP (XCDR (item
)); item
= XCDR (XCDR (item
)))
7814 Lisp_Object key
, value
;
7817 value
= XCAR (XCDR (item
));
7819 if (EQ (key
, QCenable
))
7820 /* `:enable FORM'. */
7821 PROP (TOOL_BAR_ITEM_ENABLED_P
) = value
;
7822 else if (EQ (key
, QCvisible
))
7824 /* `:visible FORM'. If got a visible property and that
7825 evaluates to nil then ignore this item. */
7826 if (NILP (menu_item_eval_property (value
)))
7829 else if (EQ (key
, QChelp
))
7830 /* `:help HELP-STRING'. */
7831 PROP (TOOL_BAR_ITEM_HELP
) = value
;
7832 else if (EQ (key
, QCfilter
))
7833 /* ':filter FORM'. */
7835 else if (EQ (key
, QCbutton
) && CONSP (value
))
7837 /* `:button (TYPE . SELECTED)'. */
7838 Lisp_Object type
, selected
;
7840 type
= XCAR (value
);
7841 selected
= XCDR (value
);
7842 if (EQ (type
, QCtoggle
) || EQ (type
, QCradio
))
7844 PROP (TOOL_BAR_ITEM_SELECTED_P
) = selected
;
7845 PROP (TOOL_BAR_ITEM_TYPE
) = type
;
7848 else if (EQ (key
, QCimage
)
7850 || (VECTORP (value
) && XVECTOR (value
)->size
== 4)))
7851 /* Value is either a single image specification or a vector
7852 of 4 such specifications for the different button states. */
7853 PROP (TOOL_BAR_ITEM_IMAGES
) = value
;
7856 /* If got a filter apply it on binding. */
7858 PROP (TOOL_BAR_ITEM_BINDING
)
7859 = menu_item_eval_property (list2 (filter
,
7861 PROP (TOOL_BAR_ITEM_BINDING
))));
7863 /* See if the binding is a keymap. Give up if it is. */
7864 if (CONSP (get_keymap (PROP (TOOL_BAR_ITEM_BINDING
), 0, 1)))
7867 /* Enable or disable selection of item. */
7868 if (!EQ (PROP (TOOL_BAR_ITEM_ENABLED_P
), Qt
))
7869 PROP (TOOL_BAR_ITEM_ENABLED_P
)
7870 = menu_item_eval_property (PROP (TOOL_BAR_ITEM_ENABLED_P
));
7872 /* Handle radio buttons or toggle boxes. */
7873 if (!NILP (PROP (TOOL_BAR_ITEM_SELECTED_P
)))
7874 PROP (TOOL_BAR_ITEM_SELECTED_P
)
7875 = menu_item_eval_property (PROP (TOOL_BAR_ITEM_SELECTED_P
));
7883 /* Initialize tool_bar_items_vector. REUSE, if non-nil, is a vector
7884 that can be reused. */
7887 init_tool_bar_items (reuse
)
7890 if (VECTORP (reuse
))
7891 tool_bar_items_vector
= reuse
;
7893 tool_bar_items_vector
= Fmake_vector (make_number (64), Qnil
);
7894 ntool_bar_items
= 0;
7898 /* Append parsed tool bar item properties from
7899 tool_bar_item_properties */
7902 append_tool_bar_item ()
7904 Lisp_Object
*to
, *from
;
7906 /* Enlarge tool_bar_items_vector if necessary. */
7907 if (ntool_bar_items
+ TOOL_BAR_ITEM_NSLOTS
7908 >= XVECTOR (tool_bar_items_vector
)->size
)
7910 Lisp_Object new_vector
;
7911 int old_size
= XVECTOR (tool_bar_items_vector
)->size
;
7913 new_vector
= Fmake_vector (make_number (2 * old_size
), Qnil
);
7914 bcopy (XVECTOR (tool_bar_items_vector
)->contents
,
7915 XVECTOR (new_vector
)->contents
,
7916 old_size
* sizeof (Lisp_Object
));
7917 tool_bar_items_vector
= new_vector
;
7920 /* Append entries from tool_bar_item_properties to the end of
7921 tool_bar_items_vector. */
7922 to
= XVECTOR (tool_bar_items_vector
)->contents
+ ntool_bar_items
;
7923 from
= XVECTOR (tool_bar_item_properties
)->contents
;
7924 bcopy (from
, to
, TOOL_BAR_ITEM_NSLOTS
* sizeof *to
);
7925 ntool_bar_items
+= TOOL_BAR_ITEM_NSLOTS
;
7932 /* Read a character using menus based on maps in the array MAPS.
7933 NMAPS is the length of MAPS. Return nil if there are no menus in the maps.
7934 Return t if we displayed a menu but the user rejected it.
7936 PREV_EVENT is the previous input event, or nil if we are reading
7937 the first event of a key sequence.
7939 If USED_MOUSE_MENU is non-null, then we set *USED_MOUSE_MENU to 1
7940 if we used a mouse menu to read the input, or zero otherwise. If
7941 USED_MOUSE_MENU is null, we don't dereference it.
7943 The prompting is done based on the prompt-string of the map
7944 and the strings associated with various map elements.
7946 This can be done with X menus or with menus put in the minibuf.
7947 These are done in different ways, depending on how the input will be read.
7948 Menus using X are done after auto-saving in read-char, getting the input
7949 event from Fx_popup_menu; menus using the minibuf use read_char recursively
7950 and do auto-saving in the inner call of read_char. */
7953 read_char_x_menu_prompt (nmaps
, maps
, prev_event
, used_mouse_menu
)
7956 Lisp_Object prev_event
;
7957 int *used_mouse_menu
;
7960 register Lisp_Object name
= Qnil
;
7962 if (used_mouse_menu
)
7963 *used_mouse_menu
= 0;
7965 /* Use local over global Menu maps */
7967 if (! menu_prompting
)
7970 /* Optionally disregard all but the global map. */
7971 if (inhibit_local_menu_bar_menus
)
7973 maps
+= (nmaps
- 1);
7977 /* Get the menu name from the first map that has one (a prompt string). */
7978 for (mapno
= 0; mapno
< nmaps
; mapno
++)
7980 name
= Fkeymap_prompt (maps
[mapno
]);
7985 /* If we don't have any menus, just read a character normally. */
7986 if (!STRINGP (name
))
7990 /* If we got to this point via a mouse click,
7991 use a real menu for mouse selection. */
7992 if (EVENT_HAS_PARAMETERS (prev_event
)
7993 && !EQ (XCAR (prev_event
), Qmenu_bar
)
7994 && !EQ (XCAR (prev_event
), Qtool_bar
))
7996 /* Display the menu and get the selection. */
7997 Lisp_Object
*realmaps
7998 = (Lisp_Object
*) alloca (nmaps
* sizeof (Lisp_Object
));
8002 /* Use the maps that are not nil. */
8003 for (mapno
= 0; mapno
< nmaps
; mapno
++)
8004 if (!NILP (maps
[mapno
]))
8005 realmaps
[nmaps1
++] = maps
[mapno
];
8007 value
= Fx_popup_menu (prev_event
, Flist (nmaps1
, realmaps
));
8012 record_menu_key (XCAR (value
));
8014 /* If we got multiple events, unread all but
8016 There is no way to prevent those unread events
8017 from showing up later in last_nonmenu_event.
8018 So turn symbol and integer events into lists,
8019 to indicate that they came from a mouse menu,
8020 so that when present in last_nonmenu_event
8021 they won't confuse things. */
8022 for (tem
= XCDR (value
); !NILP (tem
); tem
= XCDR (tem
))
8024 record_menu_key (XCAR (tem
));
8025 if (SYMBOLP (XCAR (tem
))
8026 || INTEGERP (XCAR (tem
)))
8027 XSETCAR (tem
, Fcons (XCAR (tem
), Qdisabled
));
8030 /* If we got more than one event, put all but the first
8031 onto this list to be read later.
8032 Return just the first event now. */
8033 Vunread_command_events
8034 = nconc2 (XCDR (value
), Vunread_command_events
);
8035 value
= XCAR (value
);
8037 else if (NILP (value
))
8039 if (used_mouse_menu
)
8040 *used_mouse_menu
= 1;
8043 #endif /* HAVE_MENUS */
8047 /* Buffer in use so far for the minibuf prompts for menu keymaps.
8048 We make this bigger when necessary, and never free it. */
8049 static char *read_char_minibuf_menu_text
;
8050 /* Size of that buffer. */
8051 static int read_char_minibuf_menu_width
;
8054 read_char_minibuf_menu_prompt (commandflag
, nmaps
, maps
)
8060 register Lisp_Object name
;
8062 /* FIXME: Use the minibuffer's frame width. */
8063 int width
= FRAME_COLS (SELECTED_FRAME ()) - 4;
8066 Lisp_Object rest
, vector
;
8072 if (! menu_prompting
)
8075 /* Make sure we have a big enough buffer for the menu text. */
8076 if (read_char_minibuf_menu_text
== 0)
8078 read_char_minibuf_menu_width
= width
+ 4;
8079 read_char_minibuf_menu_text
= (char *) xmalloc (width
+ 4);
8081 else if (width
+ 4 > read_char_minibuf_menu_width
)
8083 read_char_minibuf_menu_width
= width
+ 4;
8084 read_char_minibuf_menu_text
8085 = (char *) xrealloc (read_char_minibuf_menu_text
, width
+ 4);
8087 menu
= read_char_minibuf_menu_text
;
8089 /* Get the menu name from the first map that has one (a prompt string). */
8090 for (mapno
= 0; mapno
< nmaps
; mapno
++)
8092 name
= Fkeymap_prompt (maps
[mapno
]);
8097 /* If we don't have any menus, just read a character normally. */
8098 if (!STRINGP (name
))
8101 /* Prompt string always starts with map's prompt, and a space. */
8102 strcpy (menu
, SDATA (name
));
8103 nlength
= SBYTES (name
);
8104 menu
[nlength
++] = ':';
8105 menu
[nlength
++] = ' ';
8108 /* Start prompting at start of first map. */
8112 /* Present the documented bindings, a line at a time. */
8119 Lisp_Object orig_defn_macro
;
8121 /* Loop over elements of map. */
8126 /* If reached end of map, start at beginning of next map. */
8130 /* At end of last map, wrap around to first map if just starting,
8131 or end this line if already have something on it. */
8135 if (notfirst
|| nobindings
) break;
8140 /* Look at the next element of the map. */
8142 elt
= XVECTOR (vector
)->contents
[idx
];
8144 elt
= Fcar_safe (rest
);
8146 if (idx
< 0 && VECTORP (elt
))
8148 /* If we found a dense table in the keymap,
8149 advanced past it, but start scanning its contents. */
8150 rest
= Fcdr_safe (rest
);
8156 /* An ordinary element. */
8157 Lisp_Object event
, tem
;
8161 event
= Fcar_safe (elt
); /* alist */
8162 elt
= Fcdr_safe (elt
);
8166 XSETINT (event
, idx
); /* vector */
8169 /* Ignore the element if it has no prompt string. */
8170 if (INTEGERP (event
) && parse_menu_item (elt
, 0, -1))
8172 /* 1 if the char to type matches the string. */
8174 Lisp_Object upcased_event
, downcased_event
;
8175 Lisp_Object desc
= Qnil
;
8177 = XVECTOR (item_properties
)->contents
[ITEM_PROPERTY_NAME
];
8179 upcased_event
= Fupcase (event
);
8180 downcased_event
= Fdowncase (event
);
8181 char_matches
= (XINT (upcased_event
) == SREF (s
, 0)
8182 || XINT (downcased_event
) == SREF (s
, 0));
8184 desc
= Fsingle_key_description (event
, Qnil
);
8186 #if 0 /* It is redundant to list the equivalent key bindings because
8187 the prefix is what the user has already typed. */
8189 = XVECTOR (item_properties
)->contents
[ITEM_PROPERTY_KEYEQ
];
8191 /* Insert equivalent keybinding. */
8192 s
= concat2 (s
, tem
);
8195 = XVECTOR (item_properties
)->contents
[ITEM_PROPERTY_TYPE
];
8196 if (EQ (tem
, QCradio
) || EQ (tem
, QCtoggle
))
8198 /* Insert button prefix. */
8199 Lisp_Object selected
8200 = XVECTOR (item_properties
)->contents
[ITEM_PROPERTY_SELECTED
];
8201 if (EQ (tem
, QCradio
))
8202 tem
= build_string (NILP (selected
) ? "(*) " : "( ) ");
8204 tem
= build_string (NILP (selected
) ? "[X] " : "[ ] ");
8205 s
= concat2 (tem
, s
);
8209 /* If we have room for the prompt string, add it to this line.
8210 If this is the first on the line, always add it. */
8211 if ((SCHARS (s
) + i
+ 2
8212 + (char_matches
? 0 : SCHARS (desc
) + 3))
8218 /* Punctuate between strings. */
8221 strcpy (menu
+ i
, ", ");
8227 /* If the char to type doesn't match the string's
8228 first char, explicitly show what char to type. */
8231 /* Add as much of string as fits. */
8232 thiswidth
= SCHARS (desc
);
8233 if (thiswidth
+ i
> width
)
8234 thiswidth
= width
- i
;
8235 bcopy (SDATA (desc
), menu
+ i
, thiswidth
);
8237 strcpy (menu
+ i
, " = ");
8241 /* Add as much of string as fits. */
8242 thiswidth
= SCHARS (s
);
8243 if (thiswidth
+ i
> width
)
8244 thiswidth
= width
- i
;
8245 bcopy (SDATA (s
), menu
+ i
, thiswidth
);
8251 /* If this element does not fit, end the line now,
8252 and save the element for the next line. */
8253 strcpy (menu
+ i
, "...");
8258 /* Move past this element. */
8259 if (idx
>= 0 && idx
+ 1 >= XVECTOR (vector
)->size
)
8260 /* Handle reaching end of dense table. */
8265 rest
= Fcdr_safe (rest
);
8269 /* Prompt with that and read response. */
8270 message2_nolog (menu
, strlen (menu
),
8271 ! NILP (current_buffer
->enable_multibyte_characters
));
8273 /* Make believe its not a keyboard macro in case the help char
8274 is pressed. Help characters are not recorded because menu prompting
8275 is not used on replay.
8277 orig_defn_macro
= current_kboard
->defining_kbd_macro
;
8278 current_kboard
->defining_kbd_macro
= Qnil
;
8280 obj
= read_char (commandflag
, 0, 0, Qt
, 0);
8281 while (BUFFERP (obj
));
8282 current_kboard
->defining_kbd_macro
= orig_defn_macro
;
8284 if (!INTEGERP (obj
))
8289 if (! EQ (obj
, menu_prompt_more_char
)
8290 && (!INTEGERP (menu_prompt_more_char
)
8291 || ! EQ (obj
, make_number (Ctl (XINT (menu_prompt_more_char
))))))
8293 if (!NILP (current_kboard
->defining_kbd_macro
))
8294 store_kbd_macro_char (obj
);
8297 /* Help char - go round again */
8301 /* Reading key sequences. */
8303 /* Follow KEY in the maps in CURRENT[0..NMAPS-1], placing its bindings
8304 in DEFS[0..NMAPS-1]. Set NEXT[i] to DEFS[i] if DEFS[i] is a
8305 keymap, or nil otherwise. Return the index of the first keymap in
8306 which KEY has any binding, or NMAPS if no map has a binding.
8308 If KEY is a meta ASCII character, treat it like meta-prefix-char
8309 followed by the corresponding non-meta character. Keymaps in
8310 CURRENT with non-prefix bindings for meta-prefix-char become nil in
8313 If KEY has no bindings in any of the CURRENT maps, NEXT is left
8316 NEXT may be the same array as CURRENT. */
8319 follow_key (key
, nmaps
, current
, defs
, next
)
8321 Lisp_Object
*current
, *defs
, *next
;
8324 int i
, first_binding
;
8326 first_binding
= nmaps
;
8327 for (i
= nmaps
- 1; i
>= 0; i
--)
8329 if (! NILP (current
[i
]))
8331 defs
[i
] = access_keymap (current
[i
], key
, 1, 0, 1);
8332 if (! NILP (defs
[i
]))
8339 /* Given the set of bindings we've found, produce the next set of maps. */
8340 if (first_binding
< nmaps
)
8341 for (i
= 0; i
< nmaps
; i
++)
8342 next
[i
] = NILP (defs
[i
]) ? Qnil
: get_keymap (defs
[i
], 0, 1);
8344 return first_binding
;
8347 /* Structure used to keep track of partial application of key remapping
8348 such as Vfunction_key_map and Vkey_translation_map. */
8349 typedef struct keyremap
8351 Lisp_Object map
, parent
;
8355 /* Lookup KEY in MAP.
8356 MAP is a keymap mapping keys to key vectors or functions.
8357 If the mapping is a function and DO_FUNCTION is non-zero, then
8358 the function is called with PROMPT as parameter and its return
8359 value is used as the return value of this function (after checking
8360 that it is indeed a vector). */
8363 access_keymap_keyremap (map
, key
, prompt
, do_funcall
)
8364 Lisp_Object map
, key
, prompt
;
8369 next
= access_keymap (map
, key
, 1, 0, 1);
8371 /* Handle symbol with autoload definition. */
8372 if (SYMBOLP (next
) && !NILP (Ffboundp (next
))
8373 && CONSP (XSYMBOL (next
)->function
)
8374 && EQ (XCAR (XSYMBOL (next
)->function
), Qautoload
))
8375 do_autoload (XSYMBOL (next
)->function
, next
);
8377 /* Handle a symbol whose function definition is a keymap
8379 if (SYMBOLP (next
) && !NILP (Ffboundp (next
))
8380 && (!NILP (Farrayp (XSYMBOL (next
)->function
))
8381 || KEYMAPP (XSYMBOL (next
)->function
)))
8382 next
= XSYMBOL (next
)->function
;
8384 /* If the keymap gives a function, not an
8385 array, then call the function with one arg and use
8386 its value instead. */
8387 if (SYMBOLP (next
) && !NILP (Ffboundp (next
)) && do_funcall
)
8392 next
= call1 (next
, prompt
);
8393 /* If the function returned something invalid,
8394 barf--don't ignore it.
8395 (To ignore it safely, we would need to gcpro a bunch of
8396 other variables.) */
8397 if (! (VECTORP (next
) || STRINGP (next
)))
8398 error ("Function %s returns invalid key sequence", tem
);
8403 /* Do one step of the key remapping used for function-key-map and
8404 key-translation-map:
8405 KEYBUF is the buffer holding the input events.
8406 BUFSIZE is its maximum size.
8407 FKEY is a pointer to the keyremap structure to use.
8408 INPUT is the index of the last element in KEYBUF.
8409 DOIT if non-zero says that the remapping can actually take place.
8410 DIFF is used to return the number of keys added/removed by the remapping.
8411 PARENT is the root of the keymap.
8412 PROMPT is the prompt to use if the remapping happens through a function.
8413 The return value is non-zero if the remapping actually took place. */
8416 keyremap_step (keybuf
, bufsize
, fkey
, input
, doit
, diff
, prompt
)
8417 Lisp_Object
*keybuf
, prompt
;
8419 int input
, doit
, *diff
, bufsize
;
8421 Lisp_Object next
, key
;
8423 key
= keybuf
[fkey
->end
++];
8424 next
= access_keymap_keyremap (fkey
->map
, key
, prompt
, doit
);
8426 /* If keybuf[fkey->start..fkey->end] is bound in the
8427 map and we're in a position to do the key remapping, replace it with
8428 the binding and restart with fkey->start at the end. */
8429 if ((VECTORP (next
) || STRINGP (next
)) && doit
)
8431 int len
= XFASTINT (Flength (next
));
8434 *diff
= len
- (fkey
->end
- fkey
->start
);
8436 if (input
+ *diff
>= bufsize
)
8437 error ("Key sequence too long");
8439 /* Shift the keys that follow fkey->end. */
8441 for (i
= fkey
->end
; i
< input
; i
++)
8442 keybuf
[i
+ *diff
] = keybuf
[i
];
8444 for (i
= input
- 1; i
>= fkey
->end
; i
--)
8445 keybuf
[i
+ *diff
] = keybuf
[i
];
8446 /* Overwrite the old keys with the new ones. */
8447 for (i
= 0; i
< len
; i
++)
8448 keybuf
[fkey
->start
+ i
]
8449 = Faref (next
, make_number (i
));
8451 fkey
->start
= fkey
->end
+= *diff
;
8452 fkey
->map
= fkey
->parent
;
8457 fkey
->map
= get_keymap (next
, 0, 1);
8459 /* If we no longer have a bound suffix, try a new position for
8461 if (!CONSP (fkey
->map
))
8463 fkey
->end
= ++fkey
->start
;
8464 fkey
->map
= fkey
->parent
;
8469 /* Read a sequence of keys that ends with a non prefix character,
8470 storing it in KEYBUF, a buffer of size BUFSIZE.
8472 Return the length of the key sequence stored.
8473 Return -1 if the user rejected a command menu.
8475 Echo starting immediately unless `prompt' is 0.
8477 Where a key sequence ends depends on the currently active keymaps.
8478 These include any minor mode keymaps active in the current buffer,
8479 the current buffer's local map, and the global map.
8481 If a key sequence has no other bindings, we check Vfunction_key_map
8482 to see if some trailing subsequence might be the beginning of a
8483 function key's sequence. If so, we try to read the whole function
8484 key, and substitute its symbolic name into the key sequence.
8486 We ignore unbound `down-' mouse clicks. We turn unbound `drag-' and
8487 `double-' events into similar click events, if that would make them
8488 bound. We try to turn `triple-' events first into `double-' events,
8491 If we get a mouse click in a mode line, vertical divider, or other
8492 non-text area, we treat the click as if it were prefixed by the
8493 symbol denoting that area - `mode-line', `vertical-line', or
8496 If the sequence starts with a mouse click, we read the key sequence
8497 with respect to the buffer clicked on, not the current buffer.
8499 If the user switches frames in the midst of a key sequence, we put
8500 off the switch-frame event until later; the next call to
8501 read_char will return it.
8503 If FIX_CURRENT_BUFFER is nonzero, we restore current_buffer
8504 from the selected window's buffer. */
8507 read_key_sequence (keybuf
, bufsize
, prompt
, dont_downcase_last
,
8508 can_return_switch_frame
, fix_current_buffer
)
8509 Lisp_Object
*keybuf
;
8512 int dont_downcase_last
;
8513 int can_return_switch_frame
;
8514 int fix_current_buffer
;
8516 volatile Lisp_Object from_string
;
8517 volatile int count
= SPECPDL_INDEX ();
8519 /* How many keys there are in the current key sequence. */
8522 /* The length of the echo buffer when we started reading, and
8523 the length of this_command_keys when we started reading. */
8524 volatile int echo_start
;
8525 volatile int keys_start
;
8527 /* The number of keymaps we're scanning right now, and the number of
8528 keymaps we have allocated space for. */
8530 volatile int nmaps_allocated
= 0;
8532 /* defs[0..nmaps-1] are the definitions of KEYBUF[0..t-1] in
8533 the current keymaps. */
8534 Lisp_Object
*volatile defs
= NULL
;
8536 /* submaps[0..nmaps-1] are the prefix definitions of KEYBUF[0..t-1]
8537 in the current keymaps, or nil where it is not a prefix. */
8538 Lisp_Object
*volatile submaps
= NULL
;
8540 /* The local map to start out with at start of key sequence. */
8541 volatile Lisp_Object orig_local_map
;
8543 /* The map from the `keymap' property to start out with at start of
8545 volatile Lisp_Object orig_keymap
;
8547 /* 1 if we have already considered switching to the local-map property
8548 of the place where a mouse click occurred. */
8549 volatile int localized_local_map
= 0;
8551 /* The index in defs[] of the first keymap that has a binding for
8552 this key sequence. In other words, the lowest i such that
8553 defs[i] is non-nil. */
8554 volatile int first_binding
;
8555 /* Index of the first key that has no binding.
8556 It is useless to try fkey.start larger than that. */
8557 volatile int first_unbound
;
8559 /* If t < mock_input, then KEYBUF[t] should be read as the next
8562 We use this to recover after recognizing a function key. Once we
8563 realize that a suffix of the current key sequence is actually a
8564 function key's escape sequence, we replace the suffix with the
8565 function key's binding from Vfunction_key_map. Now keybuf
8566 contains a new and different key sequence, so the echo area,
8567 this_command_keys, and the submaps and defs arrays are wrong. In
8568 this situation, we set mock_input to t, set t to 0, and jump to
8569 restart_sequence; the loop will read keys from keybuf up until
8570 mock_input, thus rebuilding the state; and then it will resume
8571 reading characters from the keyboard. */
8572 volatile int mock_input
= 0;
8574 /* If the sequence is unbound in submaps[], then
8575 keybuf[fkey.start..fkey.end-1] is a prefix in Vfunction_key_map,
8576 and fkey.map is its binding.
8578 These might be > t, indicating that all function key scanning
8579 should hold off until t reaches them. We do this when we've just
8580 recognized a function key, to avoid searching for the function
8581 key's again in Vfunction_key_map. */
8582 volatile keyremap fkey
;
8584 /* Likewise, for key_translation_map. */
8585 volatile keyremap keytran
;
8587 /* If we receive a `switch-frame' or `select-window' event in the middle of
8588 a key sequence, we put it off for later.
8589 While we're reading, we keep the event here. */
8590 volatile Lisp_Object delayed_switch_frame
;
8592 /* See the comment below... */
8593 #if defined (GOBBLE_FIRST_EVENT)
8594 Lisp_Object first_event
;
8597 volatile Lisp_Object original_uppercase
;
8598 volatile int original_uppercase_position
= -1;
8600 /* Gets around Microsoft compiler limitations. */
8603 struct buffer
*starting_buffer
;
8605 /* List of events for which a fake prefix key has been generated. */
8606 volatile Lisp_Object fake_prefixed_keys
= Qnil
;
8608 #if defined (GOBBLE_FIRST_EVENT)
8612 struct gcpro gcpro1
;
8614 GCPRO1 (fake_prefixed_keys
);
8615 raw_keybuf_count
= 0;
8617 last_nonmenu_event
= Qnil
;
8619 delayed_switch_frame
= Qnil
;
8620 fkey
.map
= fkey
.parent
= Vfunction_key_map
;
8621 keytran
.map
= keytran
.parent
= Vkey_translation_map
;
8622 /* If there is no translation-map, turn off scanning. */
8623 fkey
.start
= fkey
.end
= KEYMAPP (fkey
.map
) ? 0 : bufsize
+ 1;
8624 keytran
.start
= keytran
.end
= KEYMAPP (keytran
.map
) ? 0 : bufsize
+ 1;
8629 echo_prompt (prompt
);
8630 else if (cursor_in_echo_area
8631 && (FLOATP (Vecho_keystrokes
) || INTEGERP (Vecho_keystrokes
))
8632 && NILP (Fzerop (Vecho_keystrokes
)))
8633 /* This doesn't put in a dash if the echo buffer is empty, so
8634 you don't always see a dash hanging out in the minibuffer. */
8638 /* Record the initial state of the echo area and this_command_keys;
8639 we will need to restore them if we replay a key sequence. */
8641 echo_start
= echo_length ();
8642 keys_start
= this_command_key_count
;
8643 this_single_command_key_start
= keys_start
;
8645 #if defined (GOBBLE_FIRST_EVENT)
8646 /* This doesn't quite work, because some of the things that read_char
8647 does cannot safely be bypassed. It seems too risky to try to make
8650 /* Read the first char of the sequence specially, before setting
8651 up any keymaps, in case a filter runs and switches buffers on us. */
8652 first_event
= read_char (NILP (prompt
), 0, submaps
, last_nonmenu_event
,
8654 #endif /* GOBBLE_FIRST_EVENT */
8656 orig_local_map
= get_local_map (PT
, current_buffer
, Qlocal_map
);
8657 orig_keymap
= get_local_map (PT
, current_buffer
, Qkeymap
);
8660 /* We jump here when the key sequence has been thoroughly changed, and
8661 we need to rescan it starting from the beginning. When we jump here,
8662 keybuf[0..mock_input] holds the sequence we should reread. */
8665 starting_buffer
= current_buffer
;
8666 first_unbound
= bufsize
+ 1;
8668 /* Build our list of keymaps.
8669 If we recognize a function key and replace its escape sequence in
8670 keybuf with its symbol, or if the sequence starts with a mouse
8671 click and we need to switch buffers, we jump back here to rebuild
8672 the initial keymaps from the current buffer. */
8675 if (!NILP (current_kboard
->Voverriding_terminal_local_map
)
8676 || !NILP (Voverriding_local_map
))
8678 if (3 > nmaps_allocated
)
8680 submaps
= (Lisp_Object
*) alloca (3 * sizeof (submaps
[0]));
8681 defs
= (Lisp_Object
*) alloca (3 * sizeof (defs
[0]));
8682 nmaps_allocated
= 3;
8684 if (!NILP (current_kboard
->Voverriding_terminal_local_map
))
8685 submaps
[nmaps
++] = current_kboard
->Voverriding_terminal_local_map
;
8686 if (!NILP (Voverriding_local_map
))
8687 submaps
[nmaps
++] = Voverriding_local_map
;
8695 nminor
= current_minor_maps (0, &maps
);
8696 total
= nminor
+ (!NILP (orig_keymap
) ? 3 : 2);
8698 if (total
> nmaps_allocated
)
8700 submaps
= (Lisp_Object
*) alloca (total
* sizeof (submaps
[0]));
8701 defs
= (Lisp_Object
*) alloca (total
* sizeof (defs
[0]));
8702 nmaps_allocated
= total
;
8705 if (!NILP (orig_keymap
))
8706 submaps
[nmaps
++] = orig_keymap
;
8708 bcopy (maps
, (void *) (submaps
+ nmaps
),
8709 nminor
* sizeof (submaps
[0]));
8713 submaps
[nmaps
++] = orig_local_map
;
8715 submaps
[nmaps
++] = current_global_map
;
8717 /* Find an accurate initial value for first_binding. */
8718 for (first_binding
= 0; first_binding
< nmaps
; first_binding
++)
8719 if (! NILP (submaps
[first_binding
]))
8722 /* Start from the beginning in keybuf. */
8725 /* These are no-ops the first time through, but if we restart, they
8726 revert the echo area and this_command_keys to their original state. */
8727 this_command_key_count
= keys_start
;
8728 if (INTERACTIVE
&& t
< mock_input
)
8729 echo_truncate (echo_start
);
8731 /* If the best binding for the current key sequence is a keymap, or
8732 we may be looking at a function key's escape sequence, keep on
8734 while (first_binding
< nmaps
8735 /* Keep reading as long as there's a prefix binding. */
8736 ? !NILP (submaps
[first_binding
])
8737 /* Don't return in the middle of a possible function key sequence,
8738 if the only bindings we found were via case conversion.
8739 Thus, if ESC O a has a function-key-map translation
8740 and ESC o has a binding, don't return after ESC O,
8741 so that we can translate ESC O plus the next character. */
8742 : (fkey
.start
< t
|| keytran
.start
< t
))
8745 int used_mouse_menu
= 0;
8747 /* Where the last real key started. If we need to throw away a
8748 key that has expanded into more than one element of keybuf
8749 (say, a mouse click on the mode line which is being treated
8750 as [mode-line (mouse-...)], then we backtrack to this point
8752 volatile int last_real_key_start
;
8754 /* These variables are analogous to echo_start and keys_start;
8755 while those allow us to restart the entire key sequence,
8756 echo_local_start and keys_local_start allow us to throw away
8758 volatile int echo_local_start
, keys_local_start
, local_first_binding
;
8760 eassert (fkey
.end
== t
|| (fkey
.end
> t
&& fkey
.end
<= mock_input
));
8761 eassert (fkey
.start
<= fkey
.end
);
8762 eassert (keytran
.start
<= keytran
.end
);
8763 /* key-translation-map is applied *after* function-key-map. */
8764 eassert (keytran
.end
<= fkey
.start
);
8766 if (first_unbound
< fkey
.start
&& first_unbound
< keytran
.start
)
8767 { /* The prefix upto first_unbound has no binding and has
8768 no translation left to do either, so we know it's unbound.
8769 If we don't stop now, we risk staying here indefinitely
8770 (if the user keeps entering fkey or keytran prefixes
8771 like C-c ESC ESC ESC ESC ...) */
8773 for (i
= first_unbound
+ 1; i
< t
; i
++)
8774 keybuf
[i
- first_unbound
- 1] = keybuf
[i
];
8775 mock_input
= t
- first_unbound
- 1;
8776 fkey
.end
= fkey
.start
-= first_unbound
+ 1;
8777 fkey
.map
= fkey
.parent
;
8778 keytran
.end
= keytran
.start
-= first_unbound
+ 1;
8779 keytran
.map
= keytran
.parent
;
8780 goto replay_sequence
;
8784 error ("Key sequence too long");
8787 echo_local_start
= echo_length ();
8788 keys_local_start
= this_command_key_count
;
8789 local_first_binding
= first_binding
;
8792 /* These are no-ops, unless we throw away a keystroke below and
8793 jumped back up to replay_key; in that case, these restore the
8794 variables to their original state, allowing us to replay the
8796 if (INTERACTIVE
&& t
< mock_input
)
8797 echo_truncate (echo_local_start
);
8798 this_command_key_count
= keys_local_start
;
8799 first_binding
= local_first_binding
;
8801 /* By default, assume each event is "real". */
8802 last_real_key_start
= t
;
8804 /* Does mock_input indicate that we are re-reading a key sequence? */
8808 add_command_key (key
);
8809 if ((FLOATP (Vecho_keystrokes
) || INTEGERP (Vecho_keystrokes
))
8810 && NILP (Fzerop (Vecho_keystrokes
)))
8814 /* If not, we should actually read a character. */
8819 KBOARD
*interrupted_kboard
= current_kboard
;
8820 struct frame
*interrupted_frame
= SELECTED_FRAME ();
8821 if (setjmp (wrong_kboard_jmpbuf
))
8823 if (!NILP (delayed_switch_frame
))
8825 interrupted_kboard
->kbd_queue
8826 = Fcons (delayed_switch_frame
,
8827 interrupted_kboard
->kbd_queue
);
8828 delayed_switch_frame
= Qnil
;
8831 interrupted_kboard
->kbd_queue
8832 = Fcons (keybuf
[--t
], interrupted_kboard
->kbd_queue
);
8834 /* If the side queue is non-empty, ensure it begins with a
8835 switch-frame, so we'll replay it in the right context. */
8836 if (CONSP (interrupted_kboard
->kbd_queue
)
8837 && (key
= XCAR (interrupted_kboard
->kbd_queue
),
8838 !(EVENT_HAS_PARAMETERS (key
)
8839 && EQ (EVENT_HEAD_KIND (EVENT_HEAD (key
)),
8843 XSETFRAME (frame
, interrupted_frame
);
8844 interrupted_kboard
->kbd_queue
8845 = Fcons (make_lispy_switch_frame (frame
),
8846 interrupted_kboard
->kbd_queue
);
8849 orig_local_map
= get_local_map (PT
, current_buffer
, Qlocal_map
);
8850 orig_keymap
= get_local_map (PT
, current_buffer
, Qkeymap
);
8851 goto replay_sequence
;
8854 key
= read_char (NILP (prompt
), nmaps
,
8855 (Lisp_Object
*) submaps
, last_nonmenu_event
,
8859 /* read_char returns t when it shows a menu and the user rejects it.
8863 unbind_to (count
, Qnil
);
8868 /* read_char returns -1 at the end of a macro.
8869 Emacs 18 handles this by returning immediately with a
8870 zero, so that's what we'll do. */
8871 if (INTEGERP (key
) && XINT (key
) == -1)
8874 /* The Microsoft C compiler can't handle the goto that
8880 /* If the current buffer has been changed from under us, the
8881 keymap may have changed, so replay the sequence. */
8884 timer_resume_idle ();
8887 /* Reset the current buffer from the selected window
8888 in case something changed the former and not the latter.
8889 This is to be more consistent with the behavior
8890 of the command_loop_1. */
8891 if (fix_current_buffer
)
8893 if (! FRAME_LIVE_P (XFRAME (selected_frame
)))
8895 if (XBUFFER (XWINDOW (selected_window
)->buffer
) != current_buffer
)
8896 Fset_buffer (XWINDOW (selected_window
)->buffer
);
8899 orig_local_map
= get_local_map (PT
, current_buffer
, Qlocal_map
);
8900 orig_keymap
= get_local_map (PT
, current_buffer
, Qkeymap
);
8901 goto replay_sequence
;
8904 /* If we have a quit that was typed in another frame, and
8905 quit_throw_to_read_char switched buffers,
8906 replay to get the right keymap. */
8908 && XINT (key
) == quit_char
8909 && current_buffer
!= starting_buffer
)
8912 XVECTOR (raw_keybuf
)->contents
[raw_keybuf_count
++] = key
;
8916 orig_local_map
= get_local_map (PT
, current_buffer
, Qlocal_map
);
8917 orig_keymap
= get_local_map (PT
, current_buffer
, Qkeymap
);
8918 goto replay_sequence
;
8923 if (EVENT_HAS_PARAMETERS (key
)
8924 /* Either a `switch-frame' or a `select-window' event. */
8925 && EQ (EVENT_HEAD_KIND (EVENT_HEAD (key
)), Qswitch_frame
))
8927 /* If we're at the beginning of a key sequence, and the caller
8928 says it's okay, go ahead and return this event. If we're
8929 in the midst of a key sequence, delay it until the end. */
8930 if (t
> 0 || !can_return_switch_frame
)
8932 delayed_switch_frame
= key
;
8938 XVECTOR (raw_keybuf
)->contents
[raw_keybuf_count
++] = key
;
8941 /* Clicks in non-text areas get prefixed by the symbol
8942 in their CHAR-ADDRESS field. For example, a click on
8943 the mode line is prefixed by the symbol `mode-line'.
8945 Furthermore, key sequences beginning with mouse clicks
8946 are read using the keymaps of the buffer clicked on, not
8947 the current buffer. So we may have to switch the buffer
8950 When we turn one event into two events, we must make sure
8951 that neither of the two looks like the original--so that,
8952 if we replay the events, they won't be expanded again.
8953 If not for this, such reexpansion could happen either here
8954 or when user programs play with this-command-keys. */
8955 if (EVENT_HAS_PARAMETERS (key
))
8960 kind
= EVENT_HEAD_KIND (EVENT_HEAD (key
));
8961 if (EQ (kind
, Qmouse_click
))
8963 Lisp_Object window
, posn
;
8965 window
= POSN_WINDOW (EVENT_START (key
));
8966 posn
= POSN_POSN (EVENT_START (key
));
8969 || (!NILP (fake_prefixed_keys
)
8970 && !NILP (Fmemq (key
, fake_prefixed_keys
))))
8972 /* We're looking a second time at an event for which
8973 we generated a fake prefix key. Set
8974 last_real_key_start appropriately. */
8976 last_real_key_start
= t
- 1;
8979 /* Key sequences beginning with mouse clicks are
8980 read using the keymaps in the buffer clicked on,
8981 not the current buffer. If we're at the
8982 beginning of a key sequence, switch buffers. */
8983 if (last_real_key_start
== 0
8985 && BUFFERP (XWINDOW (window
)->buffer
)
8986 && XBUFFER (XWINDOW (window
)->buffer
) != current_buffer
)
8988 XVECTOR (raw_keybuf
)->contents
[raw_keybuf_count
++] = key
;
8992 /* Arrange to go back to the original buffer once we're
8993 done reading the key sequence. Note that we can't
8994 use save_excursion_{save,restore} here, because they
8995 save point as well as the current buffer; we don't
8996 want to save point, because redisplay may change it,
8997 to accommodate a Fset_window_start or something. We
8998 don't want to do this at the top of the function,
8999 because we may get input from a subprocess which
9000 wants to change the selected window and stuff (say,
9002 record_unwind_protect (Fset_buffer
, Fcurrent_buffer ());
9004 if (! FRAME_LIVE_P (XFRAME (selected_frame
)))
9006 set_buffer_internal (XBUFFER (XWINDOW (window
)->buffer
));
9007 orig_local_map
= get_local_map (PT
, current_buffer
,
9009 orig_keymap
= get_local_map (PT
, current_buffer
, Qkeymap
);
9010 goto replay_sequence
;
9013 /* For a mouse click, get the local text-property keymap
9014 of the place clicked on, rather than point. */
9015 if (last_real_key_start
== 0
9016 && CONSP (XCDR (key
))
9017 && ! localized_local_map
)
9019 Lisp_Object map_here
, start
, pos
;
9021 localized_local_map
= 1;
9022 start
= EVENT_START (key
);
9024 if (CONSP (start
) && POSN_INBUFFER_P (start
))
9026 pos
= POSN_BUFFER_POSN (start
);
9028 && XINT (pos
) >= BEG
&& XINT (pos
) <= Z
)
9030 map_here
= get_local_map (XINT (pos
),
9031 current_buffer
, Qlocal_map
);
9032 if (!EQ (map_here
, orig_local_map
))
9034 orig_local_map
= map_here
;
9038 goto replay_sequence
;
9040 map_here
= get_local_map (XINT (pos
),
9041 current_buffer
, Qkeymap
);
9042 if (!EQ (map_here
, orig_keymap
))
9044 orig_keymap
= map_here
;
9048 goto replay_sequence
;
9054 /* Expand mode-line and scroll-bar events into two events:
9055 use posn as a fake prefix key. */
9057 && (NILP (fake_prefixed_keys
)
9058 || NILP (Fmemq (key
, fake_prefixed_keys
))))
9060 if (t
+ 1 >= bufsize
)
9061 error ("Key sequence too long");
9064 keybuf
[t
+ 1] = key
;
9067 /* Record that a fake prefix key has been generated
9068 for KEY. Don't modify the event; this would
9069 prevent proper action when the event is pushed
9070 back into unread-command-events. */
9071 fake_prefixed_keys
= Fcons (key
, fake_prefixed_keys
);
9073 /* If on a mode line string with a local keymap,
9074 reconsider the key sequence with that keymap. */
9075 if (string
= POSN_STRING (EVENT_START (key
)),
9076 (CONSP (string
) && STRINGP (XCAR (string
))))
9078 Lisp_Object pos
, map
, map2
;
9080 pos
= XCDR (string
);
9081 string
= XCAR (string
);
9083 && XINT (pos
) < SCHARS (string
))
9085 map
= Fget_text_property (pos
, Qlocal_map
, string
);
9087 orig_local_map
= map
;
9088 map2
= Fget_text_property (pos
, Qkeymap
, string
);
9091 if (!NILP (map
) || !NILP (map2
))
9092 goto replay_sequence
;
9098 else if (NILP (from_string
)
9099 && (string
= POSN_STRING (EVENT_START (key
)),
9100 (CONSP (string
) && STRINGP (XCAR (string
)))))
9102 /* For a click on a string, i.e. overlay string or a
9103 string displayed via the `display' property,
9104 consider `local-map' and `keymap' properties of
9106 Lisp_Object pos
, map
, map2
;
9108 pos
= XCDR (string
);
9109 string
= XCAR (string
);
9111 && XINT (pos
) < SCHARS (string
))
9113 map
= Fget_text_property (pos
, Qlocal_map
, string
);
9115 orig_local_map
= map
;
9116 map2
= Fget_text_property (pos
, Qkeymap
, string
);
9120 if (!NILP (map
) || !NILP (map2
))
9122 from_string
= string
;
9123 goto replay_sequence
;
9128 else if (CONSP (XCDR (key
))
9129 && CONSP (EVENT_START (key
))
9130 && CONSP (XCDR (EVENT_START (key
))))
9134 posn
= POSN_POSN (EVENT_START (key
));
9135 /* Handle menu-bar events:
9136 insert the dummy prefix event `menu-bar'. */
9137 if (EQ (posn
, Qmenu_bar
) || EQ (posn
, Qtool_bar
))
9139 if (t
+ 1 >= bufsize
)
9140 error ("Key sequence too long");
9144 /* Zap the position in key, so we know that we've
9145 expanded it, and don't try to do so again. */
9146 POSN_SET_POSN (EVENT_START (key
),
9147 Fcons (posn
, Qnil
));
9150 goto replay_sequence
;
9152 else if (CONSP (posn
))
9154 /* We're looking at the second event of a
9155 sequence which we expanded before. Set
9156 last_real_key_start appropriately. */
9157 if (last_real_key_start
== t
&& t
> 0)
9158 last_real_key_start
= t
- 1;
9163 /* We have finally decided that KEY is something we might want
9165 first_binding
= (follow_key (key
,
9166 nmaps
- first_binding
,
9167 submaps
+ first_binding
,
9168 defs
+ first_binding
,
9169 submaps
+ first_binding
)
9172 /* If KEY wasn't bound, we'll try some fallbacks. */
9173 if (first_binding
< nmaps
)
9174 /* This is needed for the following scenario:
9175 event 0: a down-event that gets dropped by calling replay_key.
9176 event 1: some normal prefix like C-h.
9177 After event 0, first_unbound is 0, after event 1 fkey.start
9178 and keytran.start are both 1, so when we see that C-h is bound,
9179 we need to update first_unbound. */
9180 first_unbound
= max (t
+ 1, first_unbound
);
9185 /* Remember the position to put an upper bound on fkey.start. */
9186 first_unbound
= min (t
, first_unbound
);
9188 head
= EVENT_HEAD (key
);
9189 if (help_char_p (head
) && t
> 0)
9191 read_key_sequence_cmd
= Vprefix_help_command
;
9193 last_nonmenu_event
= key
;
9194 /* The Microsoft C compiler can't handle the goto that
9202 Lisp_Object breakdown
;
9205 breakdown
= parse_modifiers (head
);
9206 modifiers
= XINT (XCAR (XCDR (breakdown
)));
9207 /* Attempt to reduce an unbound mouse event to a simpler
9208 event that is bound:
9209 Drags reduce to clicks.
9210 Double-clicks reduce to clicks.
9211 Triple-clicks reduce to double-clicks, then to clicks.
9212 Down-clicks are eliminated.
9213 Double-downs reduce to downs, then are eliminated.
9214 Triple-downs reduce to double-downs, then to downs,
9215 then are eliminated. */
9216 if (modifiers
& (down_modifier
| drag_modifier
9217 | double_modifier
| triple_modifier
))
9219 while (modifiers
& (down_modifier
| drag_modifier
9220 | double_modifier
| triple_modifier
))
9222 Lisp_Object new_head
, new_click
;
9223 if (modifiers
& triple_modifier
)
9224 modifiers
^= (double_modifier
| triple_modifier
);
9225 else if (modifiers
& double_modifier
)
9226 modifiers
&= ~double_modifier
;
9227 else if (modifiers
& drag_modifier
)
9228 modifiers
&= ~drag_modifier
;
9231 /* Dispose of this `down' event by simply jumping
9232 back to replay_key, to get another event.
9234 Note that if this event came from mock input,
9235 then just jumping back to replay_key will just
9236 hand it to us again. So we have to wipe out any
9239 We could delete keybuf[t] and shift everything
9240 after that to the left by one spot, but we'd also
9241 have to fix up any variable that points into
9242 keybuf, and shifting isn't really necessary
9245 Adding prefixes for non-textual mouse clicks
9246 creates two characters of mock input, and both
9247 must be thrown away. If we're only looking at
9248 the prefix now, we can just jump back to
9249 replay_key. On the other hand, if we've already
9250 processed the prefix, and now the actual click
9251 itself is giving us trouble, then we've lost the
9252 state of the keymaps we want to backtrack to, and
9253 we need to replay the whole sequence to rebuild
9256 Beyond that, only function key expansion could
9257 create more than two keys, but that should never
9258 generate mouse events, so it's okay to zero
9259 mock_input in that case too.
9261 FIXME: The above paragraph seems just plain
9262 wrong, if you consider things like
9263 xterm-mouse-mode. -stef
9265 Isn't this just the most wonderful code ever? */
9267 /* If mock_input > t + 1, the above simplification
9268 will actually end up dropping keys on the floor.
9269 This is probably OK for now, but even
9270 if mock_input <= t + 1, we need to adjust fkey
9272 Typical case [header-line down-mouse-N]:
9273 mock_input = 2, t = 1, fkey.end = 1,
9274 last_real_key_start = 0. */
9275 if (fkey
.end
> last_real_key_start
)
9277 fkey
.end
= fkey
.start
9278 = min (last_real_key_start
, fkey
.start
);
9279 fkey
.map
= fkey
.parent
;
9280 if (keytran
.end
> last_real_key_start
)
9282 keytran
.end
= keytran
.start
9283 = min (last_real_key_start
, keytran
.start
);
9284 keytran
.map
= keytran
.parent
;
9287 if (t
== last_real_key_start
)
9294 mock_input
= last_real_key_start
;
9295 goto replay_sequence
;
9300 = apply_modifiers (modifiers
, XCAR (breakdown
));
9302 = Fcons (new_head
, Fcons (EVENT_START (key
), Qnil
));
9304 /* Look for a binding for this new key. follow_key
9305 promises that it didn't munge submaps the
9306 last time we called it, since key was unbound. */
9308 = (follow_key (new_click
,
9309 nmaps
- local_first_binding
,
9310 submaps
+ local_first_binding
,
9311 defs
+ local_first_binding
,
9312 submaps
+ local_first_binding
)
9313 + local_first_binding
);
9315 /* If that click is bound, go for it. */
9316 if (first_binding
< nmaps
)
9321 /* Otherwise, we'll leave key set to the drag event. */
9328 /* Normally, last_nonmenu_event gets the previous key we read.
9329 But when a mouse popup menu is being used,
9330 we don't update last_nonmenu_event; it continues to hold the mouse
9331 event that preceded the first level of menu. */
9332 if (!used_mouse_menu
)
9333 last_nonmenu_event
= key
;
9335 /* Record what part of this_command_keys is the current key sequence. */
9336 this_single_command_key_start
= this_command_key_count
- t
;
9338 if (first_binding
< nmaps
&& NILP (submaps
[first_binding
]))
9339 /* There is a binding and it's not a prefix.
9340 There is thus no function-key in this sequence.
9341 Moving fkey.start is important in this case to allow keytran.start
9342 to go over the sequence before we return (since we keep the
9343 invariant that keytran.end <= fkey.start). */
9346 (fkey
.start
= fkey
.end
= t
, fkey
.map
= fkey
.parent
);
9349 /* If the sequence is unbound, see if we can hang a function key
9350 off the end of it. */
9351 /* Continue scan from fkey.end until we find a bound suffix. */
9352 while (fkey
.end
< t
)
9354 struct gcpro gcpro1
, gcpro2
, gcpro3
;
9357 GCPRO3 (fkey
.map
, keytran
.map
, delayed_switch_frame
);
9358 done
= keyremap_step (keybuf
, bufsize
, &fkey
,
9359 max (t
, mock_input
),
9360 /* If there's a binding (i.e.
9361 first_binding >= nmaps) we don't want
9362 to apply this function-key-mapping. */
9363 fkey
.end
+ 1 == t
&& first_binding
>= nmaps
,
9368 mock_input
= diff
+ max (t
, mock_input
);
9369 goto replay_sequence
;
9373 /* Look for this sequence in key-translation-map.
9374 Scan from keytran.end until we find a bound suffix. */
9375 while (keytran
.end
< fkey
.start
)
9377 struct gcpro gcpro1
, gcpro2
, gcpro3
;
9380 GCPRO3 (fkey
.map
, keytran
.map
, delayed_switch_frame
);
9381 done
= keyremap_step (keybuf
, bufsize
, &keytran
, max (t
, mock_input
),
9386 mock_input
= diff
+ max (t
, mock_input
);
9387 /* Adjust the function-key-map counters. */
9391 goto replay_sequence
;
9395 /* If KEY is not defined in any of the keymaps,
9396 and cannot be part of a function key or translation,
9397 and is an upper case letter
9398 use the corresponding lower-case letter instead. */
9399 if (first_binding
>= nmaps
9400 && fkey
.start
>= t
&& keytran
.start
>= t
9402 && ((CHARACTERP (make_number (XINT (key
) & ~CHAR_MODIFIER_MASK
))
9403 && UPPERCASEP (XINT (key
) & ~CHAR_MODIFIER_MASK
))
9404 || (XINT (key
) & shift_modifier
)))
9406 Lisp_Object new_key
;
9408 original_uppercase
= key
;
9409 original_uppercase_position
= t
- 1;
9411 if (XINT (key
) & shift_modifier
)
9412 XSETINT (new_key
, XINT (key
) & ~shift_modifier
);
9414 XSETINT (new_key
, (DOWNCASE (XINT (key
) & ~CHAR_MODIFIER_MASK
)
9415 | (XINT (key
) & ~CHAR_MODIFIER_MASK
)));
9417 /* We have to do this unconditionally, regardless of whether
9418 the lower-case char is defined in the keymaps, because they
9419 might get translated through function-key-map. */
9420 keybuf
[t
- 1] = new_key
;
9421 mock_input
= max (t
, mock_input
);
9423 goto replay_sequence
;
9425 /* If KEY is not defined in any of the keymaps,
9426 and cannot be part of a function key or translation,
9427 and is a shifted function key,
9428 use the corresponding unshifted function key instead. */
9429 if (first_binding
>= nmaps
9430 && fkey
.start
>= t
&& keytran
.start
>= t
9433 Lisp_Object breakdown
;
9436 breakdown
= parse_modifiers (key
);
9437 modifiers
= XINT (XCAR (XCDR (breakdown
)));
9438 if (modifiers
& shift_modifier
)
9440 Lisp_Object new_key
;
9442 original_uppercase
= key
;
9443 original_uppercase_position
= t
- 1;
9445 modifiers
&= ~shift_modifier
;
9446 new_key
= apply_modifiers (modifiers
,
9449 keybuf
[t
- 1] = new_key
;
9450 mock_input
= max (t
, mock_input
);
9451 fkey
.start
= fkey
.end
= KEYMAPP (fkey
.map
) ? 0 : bufsize
+ 1;
9452 keytran
.start
= keytran
.end
= KEYMAPP (keytran
.map
) ? 0 : bufsize
+ 1;
9454 goto replay_sequence
;
9460 read_key_sequence_cmd
= (first_binding
< nmaps
9461 ? defs
[first_binding
]
9464 unread_switch_frame
= delayed_switch_frame
;
9465 unbind_to (count
, Qnil
);
9467 /* Don't downcase the last character if the caller says don't.
9468 Don't downcase it if the result is undefined, either. */
9469 if ((dont_downcase_last
|| first_binding
>= nmaps
)
9470 && t
- 1 == original_uppercase_position
)
9471 keybuf
[t
- 1] = original_uppercase
;
9473 /* Occasionally we fabricate events, perhaps by expanding something
9474 according to function-key-map, or by adding a prefix symbol to a
9475 mouse click in the scroll bar or modeline. In this cases, return
9476 the entire generated key sequence, even if we hit an unbound
9477 prefix or a definition before the end. This means that you will
9478 be able to push back the event properly, and also means that
9479 read-key-sequence will always return a logical unit.
9482 for (; t
< mock_input
; t
++)
9484 if ((FLOATP (Vecho_keystrokes
) || INTEGERP (Vecho_keystrokes
))
9485 && NILP (Fzerop (Vecho_keystrokes
)))
9486 echo_char (keybuf
[t
]);
9487 add_command_key (keybuf
[t
]);
9496 DEFUN ("read-key-sequence", Fread_key_sequence
, Sread_key_sequence
, 1, 5, 0,
9497 doc
: /* Read a sequence of keystrokes and return as a string or vector.
9498 The sequence is sufficient to specify a non-prefix command in the
9499 current local and global maps.
9501 First arg PROMPT is a prompt string. If nil, do not prompt specially.
9502 Second (optional) arg CONTINUE-ECHO, if non-nil, means this key echos
9503 as a continuation of the previous key.
9505 The third (optional) arg DONT-DOWNCASE-LAST, if non-nil, means do not
9506 convert the last event to lower case. (Normally any upper case event
9507 is converted to lower case if the original event is undefined and the lower
9508 case equivalent is defined.) A non-nil value is appropriate for reading
9509 a key sequence to be defined.
9511 A C-g typed while in this function is treated like any other character,
9512 and `quit-flag' is not set.
9514 If the key sequence starts with a mouse click, then the sequence is read
9515 using the keymaps of the buffer of the window clicked in, not the buffer
9516 of the selected window as normal.
9518 `read-key-sequence' drops unbound button-down events, since you normally
9519 only care about the click or drag events which follow them. If a drag
9520 or multi-click event is unbound, but the corresponding click event would
9521 be bound, `read-key-sequence' turns the event into a click event at the
9522 drag's starting position. This means that you don't have to distinguish
9523 between click and drag, double, or triple events unless you want to.
9525 `read-key-sequence' prefixes mouse events on mode lines, the vertical
9526 lines separating windows, and scroll bars with imaginary keys
9527 `mode-line', `vertical-line', and `vertical-scroll-bar'.
9529 Optional fourth argument CAN-RETURN-SWITCH-FRAME non-nil means that this
9530 function will process a switch-frame event if the user switches frames
9531 before typing anything. If the user switches frames in the middle of a
9532 key sequence, or at the start of the sequence but CAN-RETURN-SWITCH-FRAME
9533 is nil, then the event will be put off until after the current key sequence.
9535 `read-key-sequence' checks `function-key-map' for function key
9536 sequences, where they wouldn't conflict with ordinary bindings. See
9537 `function-key-map' for more details.
9539 The optional fifth argument COMMAND-LOOP, if non-nil, means
9540 that this key sequence is being read by something that will
9541 read commands one after another. It should be nil if the caller
9542 will read just one key sequence. */)
9543 (prompt
, continue_echo
, dont_downcase_last
, can_return_switch_frame
,
9545 Lisp_Object prompt
, continue_echo
, dont_downcase_last
;
9546 Lisp_Object can_return_switch_frame
, command_loop
;
9548 Lisp_Object keybuf
[30];
9550 struct gcpro gcpro1
;
9551 int count
= SPECPDL_INDEX ();
9554 CHECK_STRING (prompt
);
9557 specbind (Qinput_method_exit_on_first_char
,
9558 (NILP (command_loop
) ? Qt
: Qnil
));
9559 specbind (Qinput_method_use_echo_area
,
9560 (NILP (command_loop
) ? Qt
: Qnil
));
9562 bzero (keybuf
, sizeof keybuf
);
9564 gcpro1
.nvars
= (sizeof keybuf
/sizeof (keybuf
[0]));
9566 if (NILP (continue_echo
))
9568 this_command_key_count
= 0;
9569 this_command_key_count_reset
= 0;
9570 this_single_command_key_start
= 0;
9573 #ifdef HAVE_X_WINDOWS
9574 if (display_hourglass_p
)
9575 cancel_hourglass ();
9578 i
= read_key_sequence (keybuf
, (sizeof keybuf
/sizeof (keybuf
[0])),
9579 prompt
, ! NILP (dont_downcase_last
),
9580 ! NILP (can_return_switch_frame
), 0);
9582 #if 0 /* The following is fine for code reading a key sequence and
9583 then proceeding with a lenghty computation, but it's not good
9584 for code reading keys in a loop, like an input method. */
9585 #ifdef HAVE_X_WINDOWS
9586 if (display_hourglass_p
)
9597 return unbind_to (count
, make_event_array (i
, keybuf
));
9600 DEFUN ("read-key-sequence-vector", Fread_key_sequence_vector
,
9601 Sread_key_sequence_vector
, 1, 5, 0,
9602 doc
: /* Like `read-key-sequence' but always return a vector. */)
9603 (prompt
, continue_echo
, dont_downcase_last
, can_return_switch_frame
,
9605 Lisp_Object prompt
, continue_echo
, dont_downcase_last
;
9606 Lisp_Object can_return_switch_frame
, command_loop
;
9608 Lisp_Object keybuf
[30];
9610 struct gcpro gcpro1
;
9611 int count
= SPECPDL_INDEX ();
9614 CHECK_STRING (prompt
);
9617 specbind (Qinput_method_exit_on_first_char
,
9618 (NILP (command_loop
) ? Qt
: Qnil
));
9619 specbind (Qinput_method_use_echo_area
,
9620 (NILP (command_loop
) ? Qt
: Qnil
));
9622 bzero (keybuf
, sizeof keybuf
);
9624 gcpro1
.nvars
= (sizeof keybuf
/sizeof (keybuf
[0]));
9626 if (NILP (continue_echo
))
9628 this_command_key_count
= 0;
9629 this_command_key_count_reset
= 0;
9630 this_single_command_key_start
= 0;
9633 #ifdef HAVE_X_WINDOWS
9634 if (display_hourglass_p
)
9635 cancel_hourglass ();
9638 i
= read_key_sequence (keybuf
, (sizeof keybuf
/sizeof (keybuf
[0])),
9639 prompt
, ! NILP (dont_downcase_last
),
9640 ! NILP (can_return_switch_frame
), 0);
9642 #ifdef HAVE_X_WINDOWS
9643 if (display_hourglass_p
)
9653 return unbind_to (count
, Fvector (i
, keybuf
));
9656 DEFUN ("command-execute", Fcommand_execute
, Scommand_execute
, 1, 4, 0,
9657 doc
: /* Execute CMD as an editor command.
9658 CMD must be a symbol that satisfies the `commandp' predicate.
9659 Optional second arg RECORD-FLAG non-nil
9660 means unconditionally put this command in `command-history'.
9661 Otherwise, that is done only if an arg is read using the minibuffer.
9662 The argument KEYS specifies the value to use instead of (this-command-keys)
9663 when reading the arguments; if it is nil, (this-command-keys) is used.
9664 The argument SPECIAL, if non-nil, means that this command is executing
9665 a special event, so ignore the prefix argument and don't clear it. */)
9666 (cmd
, record_flag
, keys
, special
)
9667 Lisp_Object cmd
, record_flag
, keys
, special
;
9669 register Lisp_Object final
;
9670 register Lisp_Object tem
;
9671 Lisp_Object prefixarg
;
9672 struct backtrace backtrace
;
9673 extern int debug_on_next_call
;
9675 debug_on_next_call
= 0;
9679 prefixarg
= current_kboard
->Vprefix_arg
;
9680 Vcurrent_prefix_arg
= prefixarg
;
9681 current_kboard
->Vprefix_arg
= Qnil
;
9688 tem
= Fget (cmd
, Qdisabled
);
9689 if (!NILP (tem
) && !NILP (Vrun_hooks
))
9691 tem
= Fsymbol_value (Qdisabled_command_function
);
9693 return call1 (Vrun_hooks
, Qdisabled_command_function
);
9699 final
= Findirect_function (cmd
);
9701 if (CONSP (final
) && (tem
= Fcar (final
), EQ (tem
, Qautoload
)))
9703 struct gcpro gcpro1
, gcpro2
;
9705 GCPRO2 (cmd
, prefixarg
);
9706 do_autoload (final
, cmd
);
9713 if (STRINGP (final
) || VECTORP (final
))
9715 /* If requested, place the macro in the command history. For
9716 other sorts of commands, call-interactively takes care of
9718 if (!NILP (record_flag
))
9721 = Fcons (Fcons (Qexecute_kbd_macro
,
9722 Fcons (final
, Fcons (prefixarg
, Qnil
))),
9725 /* Don't keep command history around forever. */
9726 if (NUMBERP (Vhistory_length
) && XINT (Vhistory_length
) > 0)
9728 tem
= Fnthcdr (Vhistory_length
, Vcommand_history
);
9730 XSETCDR (tem
, Qnil
);
9734 return Fexecute_kbd_macro (final
, prefixarg
, Qnil
);
9737 if (CONSP (final
) || SUBRP (final
) || COMPILEDP (final
))
9739 backtrace
.next
= backtrace_list
;
9740 backtrace_list
= &backtrace
;
9741 backtrace
.function
= &Qcall_interactively
;
9742 backtrace
.args
= &cmd
;
9743 backtrace
.nargs
= 1;
9744 backtrace
.evalargs
= 0;
9745 backtrace
.debug_on_exit
= 0;
9747 tem
= Fcall_interactively (cmd
, record_flag
, keys
);
9749 backtrace_list
= backtrace
.next
;
9757 DEFUN ("execute-extended-command", Fexecute_extended_command
, Sexecute_extended_command
,
9759 doc
: /* Read function name, then read its arguments and call it. */)
9761 Lisp_Object prefixarg
;
9763 Lisp_Object function
;
9765 int saved_last_point_position
;
9766 Lisp_Object saved_keys
, saved_last_point_position_buffer
;
9767 Lisp_Object bindings
, value
;
9768 struct gcpro gcpro1
, gcpro2
, gcpro3
;
9769 #ifdef HAVE_X_WINDOWS
9770 /* The call to Fcompleting_read wil start and cancel the hourglass,
9771 but if the hourglass was already scheduled, this means that no
9772 hourglass will be shown for the actual M-x command itself.
9773 So we restart it if it is already scheduled. Note that checking
9774 hourglass_shown_p is not enough, normally the hourglass is not shown,
9775 just scheduled to be shown. */
9776 int hstarted
= hourglass_started ();
9779 saved_keys
= Fvector (this_command_key_count
,
9780 XVECTOR (this_command_keys
)->contents
);
9781 saved_last_point_position_buffer
= last_point_position_buffer
;
9782 saved_last_point_position
= last_point_position
;
9784 GCPRO3 (saved_keys
, prefixarg
, saved_last_point_position_buffer
);
9786 if (EQ (prefixarg
, Qminus
))
9788 else if (CONSP (prefixarg
) && XINT (XCAR (prefixarg
)) == 4)
9789 strcpy (buf
, "C-u ");
9790 else if (CONSP (prefixarg
) && INTEGERP (XCAR (prefixarg
)))
9791 sprintf (buf
, "%ld ", (long) XINT (XCAR (prefixarg
)));
9792 else if (INTEGERP (prefixarg
))
9793 sprintf (buf
, "%ld ", (long) XINT (prefixarg
));
9795 /* This isn't strictly correct if execute-extended-command
9796 is bound to anything else. Perhaps it should use
9797 this_command_keys? */
9798 strcat (buf
, "M-x ");
9800 /* Prompt with buf, and then read a string, completing from and
9801 restricting to the set of all defined commands. Don't provide
9802 any initial input. Save the command read on the extended-command
9804 function
= Fcompleting_read (build_string (buf
),
9805 Vobarray
, Qcommandp
,
9806 Qt
, Qnil
, Qextended_command_history
, Qnil
,
9809 #ifdef HAVE_X_WINDOWS
9810 if (hstarted
) start_hourglass ();
9813 if (STRINGP (function
) && SCHARS (function
) == 0)
9814 error ("No command name given");
9816 /* Set this_command_keys to the concatenation of saved_keys and
9817 function, followed by a RET. */
9822 this_command_key_count
= 0;
9823 this_command_key_count_reset
= 0;
9824 this_single_command_key_start
= 0;
9826 keys
= XVECTOR (saved_keys
)->contents
;
9827 for (i
= 0; i
< XVECTOR (saved_keys
)->size
; i
++)
9828 add_command_key (keys
[i
]);
9830 for (i
= 0; i
< SCHARS (function
); i
++)
9831 add_command_key (Faref (function
, make_number (i
)));
9833 add_command_key (make_number ('\015'));
9836 last_point_position
= saved_last_point_position
;
9837 last_point_position_buffer
= saved_last_point_position_buffer
;
9841 function
= Fintern (function
, Qnil
);
9842 current_kboard
->Vprefix_arg
= prefixarg
;
9843 Vthis_command
= function
;
9844 real_this_command
= function
;
9846 /* If enabled, show which key runs this command. */
9847 if (!NILP (Vsuggest_key_bindings
)
9848 && NILP (Vexecuting_kbd_macro
)
9849 && SYMBOLP (function
))
9850 bindings
= Fwhere_is_internal (function
, Voverriding_local_map
,
9856 GCPRO2 (bindings
, value
);
9857 value
= Fcommand_execute (function
, Qt
, Qnil
, Qnil
);
9859 /* If the command has a key binding, print it now. */
9860 if (!NILP (bindings
)
9861 && ! (VECTORP (bindings
) && EQ (Faref (bindings
, make_number (0)),
9864 /* But first wait, and skip the message if there is input. */
9866 if (!NILP (echo_area_buffer
[0]))
9867 /* This command displayed something in the echo area;
9868 so wait a few seconds, then display our suggestion message. */
9869 delay_time
= (NUMBERP (Vsuggest_key_bindings
)
9870 ? XINT (Vsuggest_key_bindings
) : 2);
9872 /* This command left the echo area empty,
9873 so display our message immediately. */
9876 if (!NILP (Fsit_for (make_number (delay_time
), Qnil
, Qnil
))
9877 && ! CONSP (Vunread_command_events
))
9879 Lisp_Object binding
;
9881 int message_p
= push_message ();
9882 int count
= SPECPDL_INDEX ();
9884 record_unwind_protect (pop_message_unwind
, Qnil
);
9885 binding
= Fkey_description (bindings
, Qnil
);
9888 = (char *) alloca (SCHARS (SYMBOL_NAME (function
))
9891 sprintf (newmessage
, "You can run the command `%s' with %s",
9892 SDATA (SYMBOL_NAME (function
)),
9894 message2_nolog (newmessage
,
9895 strlen (newmessage
),
9896 STRING_MULTIBYTE (binding
));
9897 if (!NILP (Fsit_for ((NUMBERP (Vsuggest_key_bindings
)
9898 ? Vsuggest_key_bindings
: make_number (2)),
9903 unbind_to (count
, Qnil
);
9907 RETURN_UNGCPRO (value
);
9911 /* Return nonzero if input events are pending. */
9914 detect_input_pending ()
9917 get_input_pending (&input_pending
, 0);
9919 return input_pending
;
9922 /* Return nonzero if input events other than mouse movements are
9926 detect_input_pending_ignore_squeezables ()
9929 get_input_pending (&input_pending
, READABLE_EVENTS_IGNORE_SQUEEZABLES
);
9931 return input_pending
;
9934 /* Return nonzero if input events are pending, and run any pending timers. */
9937 detect_input_pending_run_timers (do_display
)
9940 int old_timers_run
= timers_run
;
9943 get_input_pending (&input_pending
, READABLE_EVENTS_DO_TIMERS_NOW
);
9945 if (old_timers_run
!= timers_run
&& do_display
)
9947 redisplay_preserve_echo_area (8);
9948 /* The following fixes a bug when using lazy-lock with
9949 lazy-lock-defer-on-the-fly set to t, i.e. when fontifying
9950 from an idle timer function. The symptom of the bug is that
9951 the cursor sometimes doesn't become visible until the next X
9952 event is processed. --gerd. */
9954 rif
->flush_display (NULL
);
9957 return input_pending
;
9960 /* This is called in some cases before a possible quit.
9961 It cases the next call to detect_input_pending to recompute input_pending.
9962 So calling this function unnecessarily can't do any harm. */
9965 clear_input_pending ()
9970 /* Return nonzero if there are pending requeued events.
9971 This isn't used yet. The hope is to make wait_reading_process_output
9972 call it, and return if it runs Lisp code that unreads something.
9973 The problem is, kbd_buffer_get_event needs to be fixed to know what
9974 to do in that case. It isn't trivial. */
9977 requeued_events_pending_p ()
9979 return (!NILP (Vunread_command_events
) || unread_command_char
!= -1);
9983 DEFUN ("input-pending-p", Finput_pending_p
, Sinput_pending_p
, 0, 0, 0,
9984 doc
: /* Return t if command input is currently available with no wait.
9985 Actually, the value is nil only if we can be sure that no input is available;
9986 if there is a doubt, the value is t. */)
9989 if (!NILP (Vunread_command_events
) || unread_command_char
!= -1)
9992 get_input_pending (&input_pending
,
9993 READABLE_EVENTS_DO_TIMERS_NOW
9994 | READABLE_EVENTS_FILTER_EVENTS
);
9995 return input_pending
> 0 ? Qt
: Qnil
;
9998 DEFUN ("recent-keys", Frecent_keys
, Srecent_keys
, 0, 0, 0,
9999 doc
: /* Return vector of last 100 events, not counting those from keyboard macros. */)
10002 Lisp_Object
*keys
= XVECTOR (recent_keys
)->contents
;
10005 if (total_keys
< NUM_RECENT_KEYS
)
10006 return Fvector (total_keys
, keys
);
10009 val
= Fvector (NUM_RECENT_KEYS
, keys
);
10010 bcopy (keys
+ recent_keys_index
,
10011 XVECTOR (val
)->contents
,
10012 (NUM_RECENT_KEYS
- recent_keys_index
) * sizeof (Lisp_Object
));
10014 XVECTOR (val
)->contents
+ NUM_RECENT_KEYS
- recent_keys_index
,
10015 recent_keys_index
* sizeof (Lisp_Object
));
10020 DEFUN ("this-command-keys", Fthis_command_keys
, Sthis_command_keys
, 0, 0, 0,
10021 doc
: /* Return the key sequence that invoked this command.
10022 However, if the command has called `read-key-sequence', it returns
10023 the last key sequence that has been read.
10024 The value is a string or a vector. */)
10027 return make_event_array (this_command_key_count
,
10028 XVECTOR (this_command_keys
)->contents
);
10031 DEFUN ("this-command-keys-vector", Fthis_command_keys_vector
, Sthis_command_keys_vector
, 0, 0, 0,
10032 doc
: /* Return the key sequence that invoked this command, as a vector.
10033 However, if the command has called `read-key-sequence', it returns
10034 the last key sequence that has been read. */)
10037 return Fvector (this_command_key_count
,
10038 XVECTOR (this_command_keys
)->contents
);
10041 DEFUN ("this-single-command-keys", Fthis_single_command_keys
,
10042 Sthis_single_command_keys
, 0, 0, 0,
10043 doc
: /* Return the key sequence that invoked this command.
10044 More generally, it returns the last key sequence read, either by
10045 the command loop or by `read-key-sequence'.
10046 Unlike `this-command-keys', this function's value
10047 does not include prefix arguments.
10048 The value is always a vector. */)
10051 return Fvector (this_command_key_count
10052 - this_single_command_key_start
,
10053 (XVECTOR (this_command_keys
)->contents
10054 + this_single_command_key_start
));
10057 DEFUN ("this-single-command-raw-keys", Fthis_single_command_raw_keys
,
10058 Sthis_single_command_raw_keys
, 0, 0, 0,
10059 doc
: /* Return the raw events that were read for this command.
10060 More generally, it returns the last key sequence read, either by
10061 the command loop or by `read-key-sequence'.
10062 Unlike `this-single-command-keys', this function's value
10063 shows the events before all translations (except for input methods).
10064 The value is always a vector. */)
10067 return Fvector (raw_keybuf_count
,
10068 (XVECTOR (raw_keybuf
)->contents
));
10071 DEFUN ("reset-this-command-lengths", Freset_this_command_lengths
,
10072 Sreset_this_command_lengths
, 0, 0, 0,
10073 doc
: /* Make the unread events replace the last command and echo.
10074 Used in `universal-argument-other-key'.
10076 `universal-argument-other-key' rereads the event just typed.
10077 It then gets translated through `function-key-map'.
10078 The translated event has to replace the real events,
10079 both in the value of (this-command-keys) and in echoing.
10080 To achieve this, `universal-argument-other-key' calls
10081 `reset-this-command-lengths', which discards the record of reading
10082 these events the first time. */)
10085 this_command_key_count
= before_command_key_count
;
10086 if (this_command_key_count
< this_single_command_key_start
)
10087 this_single_command_key_start
= this_command_key_count
;
10089 echo_truncate (before_command_echo_length
);
10091 /* Cause whatever we put into unread-command-events
10092 to echo as if it were being freshly read from the keyboard. */
10093 this_command_key_count_reset
= 1;
10098 DEFUN ("clear-this-command-keys", Fclear_this_command_keys
,
10099 Sclear_this_command_keys
, 0, 1, 0,
10100 doc
: /* Clear out the vector that `this-command-keys' returns.
10101 Also clear the record of the last 100 events, unless optional arg
10102 KEEP-RECORD is non-nil. */)
10104 Lisp_Object keep_record
;
10108 this_command_key_count
= 0;
10109 this_command_key_count_reset
= 0;
10111 if (NILP (keep_record
))
10113 for (i
= 0; i
< XVECTOR (recent_keys
)->size
; ++i
)
10114 XVECTOR (recent_keys
)->contents
[i
] = Qnil
;
10116 recent_keys_index
= 0;
10121 DEFUN ("recursion-depth", Frecursion_depth
, Srecursion_depth
, 0, 0, 0,
10122 doc
: /* Return the current depth in recursive edits. */)
10126 XSETFASTINT (temp
, command_loop_level
+ minibuf_level
);
10130 DEFUN ("open-dribble-file", Fopen_dribble_file
, Sopen_dribble_file
, 1, 1,
10131 "FOpen dribble file: ",
10132 doc
: /* Start writing all keyboard characters to a dribble file called FILE.
10133 If FILE is nil, close any open dribble file. */)
10144 file
= Fexpand_file_name (file
, Qnil
);
10145 dribble
= fopen (SDATA (file
), "w");
10147 report_file_error ("Opening dribble", Fcons (file
, Qnil
));
10152 DEFUN ("discard-input", Fdiscard_input
, Sdiscard_input
, 0, 0, 0,
10153 doc
: /* Discard the contents of the terminal input buffer.
10154 Also end any kbd macro being defined. */)
10157 if (!NILP (current_kboard
->defining_kbd_macro
))
10159 /* Discard the last command from the macro. */
10160 Fcancel_kbd_macro_events ();
10164 update_mode_lines
++;
10166 Vunread_command_events
= Qnil
;
10167 unread_command_char
= -1;
10169 discard_tty_input ();
10171 kbd_fetch_ptr
= kbd_store_ptr
;
10177 DEFUN ("suspend-emacs", Fsuspend_emacs
, Ssuspend_emacs
, 0, 1, "",
10178 doc
: /* Stop Emacs and return to superior process. You can resume later.
10179 If `cannot-suspend' is non-nil, or if the system doesn't support job
10180 control, run a subshell instead.
10182 If optional arg STUFFSTRING is non-nil, its characters are stuffed
10183 to be read as terminal input by Emacs's parent, after suspension.
10185 Before suspending, run the normal hook `suspend-hook'.
10186 After resumption run the normal hook `suspend-resume-hook'.
10188 Some operating systems cannot stop the Emacs process and resume it later.
10189 On such systems, Emacs starts a subshell instead of suspending. */)
10191 Lisp_Object stuffstring
;
10193 int count
= SPECPDL_INDEX ();
10194 int old_height
, old_width
;
10196 struct gcpro gcpro1
;
10198 if (!NILP (stuffstring
))
10199 CHECK_STRING (stuffstring
);
10201 /* Run the functions in suspend-hook. */
10202 if (!NILP (Vrun_hooks
))
10203 call1 (Vrun_hooks
, intern ("suspend-hook"));
10205 GCPRO1 (stuffstring
);
10206 get_frame_size (&old_width
, &old_height
);
10207 reset_sys_modes ();
10208 /* sys_suspend can get an error if it tries to fork a subshell
10209 and the system resources aren't available for that. */
10210 record_unwind_protect ((Lisp_Object (*) P_ ((Lisp_Object
))) init_sys_modes
,
10212 stuff_buffered_input (stuffstring
);
10213 if (cannot_suspend
)
10217 unbind_to (count
, Qnil
);
10219 /* Check if terminal/window size has changed.
10220 Note that this is not useful when we are running directly
10221 with a window system; but suspend should be disabled in that case. */
10222 get_frame_size (&width
, &height
);
10223 if (width
!= old_width
|| height
!= old_height
)
10224 change_frame_size (SELECTED_FRAME (), height
, width
, 0, 0, 0);
10226 /* Run suspend-resume-hook. */
10227 if (!NILP (Vrun_hooks
))
10228 call1 (Vrun_hooks
, intern ("suspend-resume-hook"));
10234 /* If STUFFSTRING is a string, stuff its contents as pending terminal input.
10235 Then in any case stuff anything Emacs has read ahead and not used. */
10238 stuff_buffered_input (stuffstring
)
10239 Lisp_Object stuffstring
;
10241 #ifdef SIGTSTP /* stuff_char is defined if SIGTSTP. */
10242 register unsigned char *p
;
10244 if (STRINGP (stuffstring
))
10246 register int count
;
10248 p
= SDATA (stuffstring
);
10249 count
= SBYTES (stuffstring
);
10250 while (count
-- > 0)
10255 /* Anything we have read ahead, put back for the shell to read. */
10256 /* ?? What should this do when we have multiple keyboards??
10257 Should we ignore anything that was typed in at the "wrong" kboard?
10259 rms: we should stuff everything back into the kboard
10261 for (; kbd_fetch_ptr
!= kbd_store_ptr
; kbd_fetch_ptr
++)
10264 if (kbd_fetch_ptr
== kbd_buffer
+ KBD_BUFFER_SIZE
)
10265 kbd_fetch_ptr
= kbd_buffer
;
10266 if (kbd_fetch_ptr
->kind
== ASCII_KEYSTROKE_EVENT
)
10267 stuff_char (kbd_fetch_ptr
->code
);
10269 clear_event (kbd_fetch_ptr
);
10273 #endif /* SIGTSTP */
10277 set_waiting_for_input (time_to_clear
)
10278 EMACS_TIME
*time_to_clear
;
10280 input_available_clear_time
= time_to_clear
;
10282 /* Tell interrupt_signal to throw back to read_char, */
10283 waiting_for_input
= 1;
10285 /* If interrupt_signal was called before and buffered a C-g,
10286 make it run again now, to avoid timing error. */
10287 if (!NILP (Vquit_flag
))
10288 quit_throw_to_read_char ();
10292 clear_waiting_for_input ()
10294 /* Tell interrupt_signal not to throw back to read_char, */
10295 waiting_for_input
= 0;
10296 input_available_clear_time
= 0;
10299 /* This routine is called at interrupt level in response to C-g.
10301 If interrupt_input, this is the handler for SIGINT. Otherwise, it
10302 is called from kbd_buffer_store_event, in handling SIGIO or
10305 If `waiting_for_input' is non zero, then unless `echoing' is
10306 nonzero, immediately throw back to read_char.
10308 Otherwise it sets the Lisp variable quit-flag not-nil. This causes
10309 eval to throw, when it gets a chance. If quit-flag is already
10310 non-nil, it stops the job right away. */
10313 interrupt_signal (signalnum
) /* If we don't have an argument, */
10314 int signalnum
; /* some compilers complain in signal calls. */
10317 /* Must preserve main program's value of errno. */
10318 int old_errno
= errno
;
10319 struct frame
*sf
= SELECTED_FRAME ();
10321 #if defined (USG) && !defined (POSIX_SIGNALS)
10322 if (!read_socket_hook
&& NILP (Vwindow_system
))
10324 /* USG systems forget handlers when they are used;
10325 must reestablish each time */
10326 signal (SIGINT
, interrupt_signal
);
10327 signal (SIGQUIT
, interrupt_signal
);
10331 SIGNAL_THREAD_CHECK (signalnum
);
10334 if (!NILP (Vquit_flag
)
10335 && (FRAME_TERMCAP_P (sf
) || FRAME_MSDOS_P (sf
)))
10337 /* If SIGINT isn't blocked, don't let us be interrupted by
10338 another SIGINT, it might be harmful due to non-reentrancy
10339 in I/O functions. */
10340 sigblock (sigmask (SIGINT
));
10343 reset_sys_modes ();
10345 #ifdef SIGTSTP /* Support possible in later USG versions */
10347 * On systems which can suspend the current process and return to the original
10348 * shell, this command causes the user to end up back at the shell.
10349 * The "Auto-save" and "Abort" questions are not asked until
10350 * the user elects to return to emacs, at which point he can save the current
10351 * job and either dump core or continue.
10356 if (sys_suspend () == -1)
10358 printf ("Not running as a subprocess;\n");
10359 printf ("you can continue or abort.\n");
10361 #else /* not VMS */
10362 /* Perhaps should really fork an inferior shell?
10363 But that would not provide any way to get back
10364 to the original shell, ever. */
10365 printf ("No support for stopping a process on this operating system;\n");
10366 printf ("you can continue or abort.\n");
10367 #endif /* not VMS */
10368 #endif /* not SIGTSTP */
10370 /* We must remain inside the screen area when the internal terminal
10371 is used. Note that [Enter] is not echoed by dos. */
10374 /* It doesn't work to autosave while GC is in progress;
10375 the code used for auto-saving doesn't cope with the mark bit. */
10376 if (!gc_in_progress
)
10378 printf ("Auto-save? (y or n) ");
10380 if (((c
= getchar ()) & ~040) == 'Y')
10382 Fdo_auto_save (Qt
, Qnil
);
10384 printf ("\r\nAuto-save done");
10385 #else /* not MSDOS */
10386 printf ("Auto-save done\n");
10387 #endif /* not MSDOS */
10389 while (c
!= '\n') c
= getchar ();
10393 /* During GC, it must be safe to reenable quitting again. */
10394 Vinhibit_quit
= Qnil
;
10397 #endif /* not MSDOS */
10398 printf ("Garbage collection in progress; cannot auto-save now\r\n");
10399 printf ("but will instead do a real quit after garbage collection ends\r\n");
10404 printf ("\r\nAbort? (y or n) ");
10405 #else /* not MSDOS */
10407 printf ("Abort (and enter debugger)? (y or n) ");
10408 #else /* not VMS */
10409 printf ("Abort (and dump core)? (y or n) ");
10410 #endif /* not VMS */
10411 #endif /* not MSDOS */
10413 if (((c
= getchar ()) & ~040) == 'Y')
10415 while (c
!= '\n') c
= getchar ();
10417 printf ("\r\nContinuing...\r\n");
10418 #else /* not MSDOS */
10419 printf ("Continuing...\n");
10420 #endif /* not MSDOS */
10427 /* If executing a function that wants to be interrupted out of
10428 and the user has not deferred quitting by binding `inhibit-quit'
10429 then quit right away. */
10430 if (immediate_quit
&& NILP (Vinhibit_quit
))
10432 struct gl_state_s saved
;
10433 struct gcpro gcpro1
, gcpro2
, gcpro3
, gcpro4
;
10435 immediate_quit
= 0;
10438 GCPRO4 (saved
.object
, saved
.global_code
,
10439 saved
.current_syntax_table
, saved
.old_prop
);
10440 Fsignal (Qquit
, Qnil
);
10445 /* Else request quit when it's safe */
10449 if (waiting_for_input
&& !echoing
)
10450 quit_throw_to_read_char ();
10455 /* Handle a C-g by making read_char return C-g. */
10458 quit_throw_to_read_char ()
10461 /* Prevent another signal from doing this before we finish. */
10462 clear_waiting_for_input ();
10465 Vunread_command_events
= Qnil
;
10466 unread_command_char
= -1;
10468 #if 0 /* Currently, sit_for is called from read_char without turning
10469 off polling. And that can call set_waiting_for_input.
10470 It seems to be harmless. */
10471 #ifdef POLL_FOR_INPUT
10472 /* May be > 1 if in recursive minibuffer. */
10473 if (poll_suppress_count
== 0)
10477 if (FRAMEP (internal_last_event_frame
)
10478 && !EQ (internal_last_event_frame
, selected_frame
))
10479 do_switch_frame (make_lispy_switch_frame (internal_last_event_frame
),
10482 _longjmp (getcjmp
, 1);
10485 DEFUN ("set-input-mode", Fset_input_mode
, Sset_input_mode
, 3, 4, 0,
10486 doc
: /* Set mode of reading keyboard input.
10487 First arg INTERRUPT non-nil means use input interrupts;
10488 nil means use CBREAK mode.
10489 Second arg FLOW non-nil means use ^S/^Q flow control for output to terminal
10490 (no effect except in CBREAK mode).
10491 Third arg META t means accept 8-bit input (for a Meta key).
10492 META nil means ignore the top bit, on the assumption it is parity.
10493 Otherwise, accept 8-bit input and don't use the top bit for Meta.
10494 Optional fourth arg QUIT if non-nil specifies character to use for quitting.
10495 See also `current-input-mode'. */)
10496 (interrupt
, flow
, meta
, quit
)
10497 Lisp_Object interrupt
, flow
, meta
, quit
;
10500 && (!INTEGERP (quit
) || XINT (quit
) < 0 || XINT (quit
) > 0400))
10501 error ("set-input-mode: QUIT must be an ASCII character");
10503 #ifdef POLL_FOR_INPUT
10508 /* this causes startup screen to be restored and messes with the mouse */
10509 reset_sys_modes ();
10513 /* Note SIGIO has been undef'd if FIONREAD is missing. */
10514 if (read_socket_hook
)
10516 /* When using X, don't give the user a real choice,
10517 because we haven't implemented the mechanisms to support it. */
10518 #ifdef NO_SOCK_SIGIO
10519 interrupt_input
= 0;
10520 #else /* not NO_SOCK_SIGIO */
10521 interrupt_input
= 1;
10522 #endif /* NO_SOCK_SIGIO */
10525 interrupt_input
= !NILP (interrupt
);
10526 #else /* not SIGIO */
10527 interrupt_input
= 0;
10528 #endif /* not SIGIO */
10530 /* Our VMS input only works by interrupts, as of now. */
10532 interrupt_input
= 1;
10535 flow_control
= !NILP (flow
);
10538 else if (EQ (meta
, Qt
))
10543 /* Don't let this value be out of range. */
10544 quit_char
= XINT (quit
) & (meta_key
? 0377 : 0177);
10550 #ifdef POLL_FOR_INPUT
10551 poll_suppress_count
= 1;
10557 DEFUN ("current-input-mode", Fcurrent_input_mode
, Scurrent_input_mode
, 0, 0, 0,
10558 doc
: /* Return information about the way Emacs currently reads keyboard input.
10559 The value is a list of the form (INTERRUPT FLOW META QUIT), where
10560 INTERRUPT is non-nil if Emacs is using interrupt-driven input; if
10561 nil, Emacs is using CBREAK mode.
10562 FLOW is non-nil if Emacs uses ^S/^Q flow control for output to the
10563 terminal; this does not apply if Emacs uses interrupt-driven input.
10564 META is t if accepting 8-bit input with 8th bit as Meta flag.
10565 META nil means ignoring the top bit, on the assumption it is parity.
10566 META is neither t nor nil if accepting 8-bit input and using
10567 all 8 bits as the character code.
10568 QUIT is the character Emacs currently uses to quit.
10569 The elements of this list correspond to the arguments of
10570 `set-input-mode'. */)
10573 Lisp_Object val
[4];
10575 val
[0] = interrupt_input
? Qt
: Qnil
;
10576 val
[1] = flow_control
? Qt
: Qnil
;
10577 val
[2] = meta_key
== 2 ? make_number (0) : meta_key
== 1 ? Qt
: Qnil
;
10578 XSETFASTINT (val
[3], quit_char
);
10580 return Flist (sizeof (val
) / sizeof (val
[0]), val
);
10583 DEFUN ("posn-at-x-y", Fposn_at_x_y
, Sposn_at_x_y
, 2, 4, 0,
10584 doc
: /* Return position information for pixel coordinates X and Y.
10585 By default, X and Y are relative to text area of the selected window.
10586 Optional third arg FRAME-OR-WINDOW non-nil specifies frame or window.
10587 If optional fourth arg WHOLE is non-nil, X is relative to the left
10588 edge of the window.
10590 The return value is similar to a mouse click position:
10591 (WINDOW AREA-OR-POS (X . Y) TIMESTAMP OBJECT POS (COL . ROW)
10592 IMAGE (DX . DY) (WIDTH . HEIGHT))
10593 The `posn-' functions access elements of such lists. */)
10594 (x
, y
, frame_or_window
, whole
)
10595 Lisp_Object x
, y
, frame_or_window
, whole
;
10600 if (NILP (frame_or_window
))
10601 frame_or_window
= selected_window
;
10603 if (WINDOWP (frame_or_window
))
10607 CHECK_LIVE_WINDOW (frame_or_window
);
10609 w
= XWINDOW (frame_or_window
);
10610 XSETINT (x
, (XINT (x
)
10611 + WINDOW_LEFT_EDGE_X (w
)
10613 ? window_box_left_offset (w
, TEXT_AREA
)
10615 XSETINT (y
, WINDOW_TO_FRAME_PIXEL_Y (w
, XINT (y
)));
10616 frame_or_window
= w
->frame
;
10619 CHECK_LIVE_FRAME (frame_or_window
);
10621 return make_lispy_position (XFRAME (frame_or_window
), &x
, &y
, 0);
10624 DEFUN ("posn-at-point", Fposn_at_point
, Sposn_at_point
, 0, 2, 0,
10625 doc
: /* Return position information for buffer POS in WINDOW.
10626 POS defaults to point in WINDOW; WINDOW defaults to the selected window.
10628 Return nil if position is not visible in window. Otherwise,
10629 the return value is similar to that returned by `event-start' for
10630 a mouse click at the upper left corner of the glyph corresponding
10631 to the given buffer position:
10632 (WINDOW AREA-OR-POS (X . Y) TIMESTAMP OBJECT POS (COL . ROW)
10633 IMAGE (DX . DY) (WIDTH . HEIGHT))
10634 The `posn-' functions access elements of such lists. */)
10636 Lisp_Object pos
, window
;
10641 window
= selected_window
;
10643 tem
= Fpos_visible_in_window_p (pos
, window
, Qt
);
10646 Lisp_Object x
= XCAR (tem
);
10647 Lisp_Object y
= XCAR (XCDR (tem
));
10649 /* Point invisible due to hscrolling? */
10652 tem
= Fposn_at_x_y (x
, y
, window
, Qnil
);
10660 * Set up a new kboard object with reasonable initial values.
10666 kb
->Voverriding_terminal_local_map
= Qnil
;
10667 kb
->Vlast_command
= Qnil
;
10668 kb
->Vreal_last_command
= Qnil
;
10669 kb
->Vprefix_arg
= Qnil
;
10670 kb
->Vlast_prefix_arg
= Qnil
;
10671 kb
->kbd_queue
= Qnil
;
10672 kb
->kbd_queue_has_data
= 0;
10673 kb
->immediate_echo
= 0;
10674 kb
->echo_string
= Qnil
;
10675 kb
->echo_after_prompt
= -1;
10676 kb
->kbd_macro_buffer
= 0;
10677 kb
->kbd_macro_bufsize
= 0;
10678 kb
->defining_kbd_macro
= Qnil
;
10679 kb
->Vlast_kbd_macro
= Qnil
;
10680 kb
->reference_count
= 0;
10681 kb
->Vsystem_key_alist
= Qnil
;
10682 kb
->system_key_syms
= Qnil
;
10683 kb
->Vdefault_minibuffer_frame
= Qnil
;
10687 * Destroy the contents of a kboard object, but not the object itself.
10688 * We use this just before deleting it, or if we're going to initialize
10689 * it a second time.
10695 if (kb
->kbd_macro_buffer
)
10696 xfree (kb
->kbd_macro_buffer
);
10699 #ifdef MULTI_KBOARD
10701 /* Free KB and memory referenced from it. */
10709 for (kbp
= &all_kboards
; *kbp
!= kb
; kbp
= &(*kbp
)->next_kboard
)
10712 *kbp
= kb
->next_kboard
;
10714 /* Prevent a dangling reference to KB. */
10715 if (kb
== current_kboard
10716 && FRAMEP (selected_frame
)
10717 && FRAME_LIVE_P (XFRAME (selected_frame
)))
10719 current_kboard
= XFRAME (selected_frame
)->kboard
;
10720 if (current_kboard
== kb
)
10728 #endif /* MULTI_KBOARD */
10733 /* This is correct before outermost invocation of the editor loop */
10734 command_loop_level
= -1;
10735 immediate_quit
= 0;
10736 quit_char
= Ctl ('g');
10737 Vunread_command_events
= Qnil
;
10738 unread_command_char
= -1;
10739 EMACS_SET_SECS_USECS (timer_idleness_start_time
, -1, -1);
10741 recent_keys_index
= 0;
10742 kbd_fetch_ptr
= kbd_buffer
;
10743 kbd_store_ptr
= kbd_buffer
;
10745 do_mouse_tracking
= Qnil
;
10749 /* This means that command_loop_1 won't try to select anything the first
10751 internal_last_event_frame
= Qnil
;
10752 Vlast_event_frame
= internal_last_event_frame
;
10754 #ifdef MULTI_KBOARD
10755 current_kboard
= initial_kboard
;
10757 wipe_kboard (current_kboard
);
10758 init_kboard (current_kboard
);
10760 if (!noninteractive
&& !read_socket_hook
&& NILP (Vwindow_system
))
10762 signal (SIGINT
, interrupt_signal
);
10763 #if defined (HAVE_TERMIO) || defined (HAVE_TERMIOS)
10764 /* For systems with SysV TERMIO, C-g is set up for both SIGINT and
10765 SIGQUIT and we can't tell which one it will give us. */
10766 signal (SIGQUIT
, interrupt_signal
);
10767 #endif /* HAVE_TERMIO */
10769 /* Note SIGIO has been undef'd if FIONREAD is missing. */
10771 if (!noninteractive
)
10772 signal (SIGIO
, input_available_signal
);
10775 /* Use interrupt input by default, if it works and noninterrupt input
10776 has deficiencies. */
10778 #ifdef INTERRUPT_INPUT
10779 interrupt_input
= 1;
10781 interrupt_input
= 0;
10784 /* Our VMS input only works by interrupts, as of now. */
10786 interrupt_input
= 1;
10792 if (keyboard_init_hook
)
10793 (*keyboard_init_hook
) ();
10795 #ifdef POLL_FOR_INPUT
10796 poll_suppress_count
= 1;
10801 /* This type's only use is in syms_of_keyboard, to initialize the
10802 event header symbols and put properties on them. */
10803 struct event_head
{
10809 struct event_head head_table
[] = {
10810 {&Qmouse_movement
, "mouse-movement", &Qmouse_movement
},
10811 {&Qscroll_bar_movement
, "scroll-bar-movement", &Qmouse_movement
},
10812 {&Qswitch_frame
, "switch-frame", &Qswitch_frame
},
10813 {&Qdelete_frame
, "delete-frame", &Qdelete_frame
},
10814 {&Qiconify_frame
, "iconify-frame", &Qiconify_frame
},
10815 {&Qmake_frame_visible
, "make-frame-visible", &Qmake_frame_visible
},
10816 /* `select-window' should be handled just like `switch-frame'
10817 in read_key_sequence. */
10818 {&Qselect_window
, "select-window", &Qswitch_frame
}
10822 syms_of_keyboard ()
10824 Vpre_help_message
= Qnil
;
10825 staticpro (&Vpre_help_message
);
10827 Vlispy_mouse_stem
= build_string ("mouse");
10828 staticpro (&Vlispy_mouse_stem
);
10831 QCimage
= intern (":image");
10832 staticpro (&QCimage
);
10834 staticpro (&Qhelp_echo
);
10835 Qhelp_echo
= intern ("help-echo");
10837 staticpro (&item_properties
);
10838 item_properties
= Qnil
;
10840 staticpro (&tool_bar_item_properties
);
10841 tool_bar_item_properties
= Qnil
;
10842 staticpro (&tool_bar_items_vector
);
10843 tool_bar_items_vector
= Qnil
;
10845 staticpro (&real_this_command
);
10846 real_this_command
= Qnil
;
10848 Qtimer_event_handler
= intern ("timer-event-handler");
10849 staticpro (&Qtimer_event_handler
);
10851 Qdisabled_command_function
= intern ("disabled-command-function");
10852 staticpro (&Qdisabled_command_function
);
10854 Qself_insert_command
= intern ("self-insert-command");
10855 staticpro (&Qself_insert_command
);
10857 Qforward_char
= intern ("forward-char");
10858 staticpro (&Qforward_char
);
10860 Qbackward_char
= intern ("backward-char");
10861 staticpro (&Qbackward_char
);
10863 Qdisabled
= intern ("disabled");
10864 staticpro (&Qdisabled
);
10866 Qundefined
= intern ("undefined");
10867 staticpro (&Qundefined
);
10869 Qpre_command_hook
= intern ("pre-command-hook");
10870 staticpro (&Qpre_command_hook
);
10872 Qpost_command_hook
= intern ("post-command-hook");
10873 staticpro (&Qpost_command_hook
);
10875 Qdeferred_action_function
= intern ("deferred-action-function");
10876 staticpro (&Qdeferred_action_function
);
10878 Qcommand_hook_internal
= intern ("command-hook-internal");
10879 staticpro (&Qcommand_hook_internal
);
10881 Qfunction_key
= intern ("function-key");
10882 staticpro (&Qfunction_key
);
10883 Qmouse_click
= intern ("mouse-click");
10884 staticpro (&Qmouse_click
);
10885 #if defined (WINDOWSNT) || defined (MAC_OS)
10886 Qlanguage_change
= intern ("language-change");
10887 staticpro (&Qlanguage_change
);
10889 Qdrag_n_drop
= intern ("drag-n-drop");
10890 staticpro (&Qdrag_n_drop
);
10892 Qsave_session
= intern ("save-session");
10893 staticpro (&Qsave_session
);
10896 Qmac_apple_event
= intern ("mac-apple-event");
10897 staticpro (&Qmac_apple_event
);
10900 Qusr1_signal
= intern ("usr1-signal");
10901 staticpro (&Qusr1_signal
);
10902 Qusr2_signal
= intern ("usr2-signal");
10903 staticpro (&Qusr2_signal
);
10905 Qmenu_enable
= intern ("menu-enable");
10906 staticpro (&Qmenu_enable
);
10907 Qmenu_alias
= intern ("menu-alias");
10908 staticpro (&Qmenu_alias
);
10909 QCenable
= intern (":enable");
10910 staticpro (&QCenable
);
10911 QCvisible
= intern (":visible");
10912 staticpro (&QCvisible
);
10913 QChelp
= intern (":help");
10914 staticpro (&QChelp
);
10915 QCfilter
= intern (":filter");
10916 staticpro (&QCfilter
);
10917 QCbutton
= intern (":button");
10918 staticpro (&QCbutton
);
10919 QCkeys
= intern (":keys");
10920 staticpro (&QCkeys
);
10921 QCkey_sequence
= intern (":key-sequence");
10922 staticpro (&QCkey_sequence
);
10923 QCtoggle
= intern (":toggle");
10924 staticpro (&QCtoggle
);
10925 QCradio
= intern (":radio");
10926 staticpro (&QCradio
);
10928 Qmode_line
= intern ("mode-line");
10929 staticpro (&Qmode_line
);
10930 Qvertical_line
= intern ("vertical-line");
10931 staticpro (&Qvertical_line
);
10932 Qvertical_scroll_bar
= intern ("vertical-scroll-bar");
10933 staticpro (&Qvertical_scroll_bar
);
10934 Qmenu_bar
= intern ("menu-bar");
10935 staticpro (&Qmenu_bar
);
10938 Qmouse_fixup_help_message
= intern ("mouse-fixup-help-message");
10939 staticpro (&Qmouse_fixup_help_message
);
10942 Qabove_handle
= intern ("above-handle");
10943 staticpro (&Qabove_handle
);
10944 Qhandle
= intern ("handle");
10945 staticpro (&Qhandle
);
10946 Qbelow_handle
= intern ("below-handle");
10947 staticpro (&Qbelow_handle
);
10948 Qup
= intern ("up");
10950 Qdown
= intern ("down");
10951 staticpro (&Qdown
);
10952 Qtop
= intern ("top");
10954 Qbottom
= intern ("bottom");
10955 staticpro (&Qbottom
);
10956 Qend_scroll
= intern ("end-scroll");
10957 staticpro (&Qend_scroll
);
10958 Qratio
= intern ("ratio");
10959 staticpro (&Qratio
);
10961 Qevent_kind
= intern ("event-kind");
10962 staticpro (&Qevent_kind
);
10963 Qevent_symbol_elements
= intern ("event-symbol-elements");
10964 staticpro (&Qevent_symbol_elements
);
10965 Qevent_symbol_element_mask
= intern ("event-symbol-element-mask");
10966 staticpro (&Qevent_symbol_element_mask
);
10967 Qmodifier_cache
= intern ("modifier-cache");
10968 staticpro (&Qmodifier_cache
);
10970 Qrecompute_lucid_menubar
= intern ("recompute-lucid-menubar");
10971 staticpro (&Qrecompute_lucid_menubar
);
10972 Qactivate_menubar_hook
= intern ("activate-menubar-hook");
10973 staticpro (&Qactivate_menubar_hook
);
10975 Qpolling_period
= intern ("polling-period");
10976 staticpro (&Qpolling_period
);
10978 Qinput_method_function
= intern ("input-method-function");
10979 staticpro (&Qinput_method_function
);
10981 Qinput_method_exit_on_first_char
= intern ("input-method-exit-on-first-char");
10982 staticpro (&Qinput_method_exit_on_first_char
);
10983 Qinput_method_use_echo_area
= intern ("input-method-use-echo-area");
10984 staticpro (&Qinput_method_use_echo_area
);
10986 Fset (Qinput_method_exit_on_first_char
, Qnil
);
10987 Fset (Qinput_method_use_echo_area
, Qnil
);
10989 last_point_position_buffer
= Qnil
;
10990 last_point_position_window
= Qnil
;
10993 struct event_head
*p
;
10995 for (p
= head_table
;
10996 p
< head_table
+ (sizeof (head_table
) / sizeof (head_table
[0]));
10999 *p
->var
= intern (p
->name
);
11000 staticpro (p
->var
);
11001 Fput (*p
->var
, Qevent_kind
, *p
->kind
);
11002 Fput (*p
->var
, Qevent_symbol_elements
, Fcons (*p
->var
, Qnil
));
11006 button_down_location
= Fmake_vector (make_number (1), Qnil
);
11007 staticpro (&button_down_location
);
11008 mouse_syms
= Fmake_vector (make_number (1), Qnil
);
11009 staticpro (&mouse_syms
);
11010 wheel_syms
= Fmake_vector (make_number (2), Qnil
);
11011 staticpro (&wheel_syms
);
11015 int len
= sizeof (modifier_names
) / sizeof (modifier_names
[0]);
11017 modifier_symbols
= Fmake_vector (make_number (len
), Qnil
);
11018 for (i
= 0; i
< len
; i
++)
11019 if (modifier_names
[i
])
11020 XVECTOR (modifier_symbols
)->contents
[i
] = intern (modifier_names
[i
]);
11021 staticpro (&modifier_symbols
);
11024 recent_keys
= Fmake_vector (make_number (NUM_RECENT_KEYS
), Qnil
);
11025 staticpro (&recent_keys
);
11027 this_command_keys
= Fmake_vector (make_number (40), Qnil
);
11028 staticpro (&this_command_keys
);
11030 raw_keybuf
= Fmake_vector (make_number (30), Qnil
);
11031 staticpro (&raw_keybuf
);
11033 Qextended_command_history
= intern ("extended-command-history");
11034 Fset (Qextended_command_history
, Qnil
);
11035 staticpro (&Qextended_command_history
);
11037 accent_key_syms
= Qnil
;
11038 staticpro (&accent_key_syms
);
11040 func_key_syms
= Qnil
;
11041 staticpro (&func_key_syms
);
11043 drag_n_drop_syms
= Qnil
;
11044 staticpro (&drag_n_drop_syms
);
11046 unread_switch_frame
= Qnil
;
11047 staticpro (&unread_switch_frame
);
11049 internal_last_event_frame
= Qnil
;
11050 staticpro (&internal_last_event_frame
);
11052 read_key_sequence_cmd
= Qnil
;
11053 staticpro (&read_key_sequence_cmd
);
11055 menu_bar_one_keymap_changed_items
= Qnil
;
11056 staticpro (&menu_bar_one_keymap_changed_items
);
11058 menu_bar_items_vector
= Qnil
;
11059 staticpro (&menu_bar_items_vector
);
11061 defsubr (&Sevent_convert_list
);
11062 defsubr (&Sread_key_sequence
);
11063 defsubr (&Sread_key_sequence_vector
);
11064 defsubr (&Srecursive_edit
);
11066 defsubr (&Strack_mouse
);
11068 defsubr (&Sinput_pending_p
);
11069 defsubr (&Scommand_execute
);
11070 defsubr (&Srecent_keys
);
11071 defsubr (&Sthis_command_keys
);
11072 defsubr (&Sthis_command_keys_vector
);
11073 defsubr (&Sthis_single_command_keys
);
11074 defsubr (&Sthis_single_command_raw_keys
);
11075 defsubr (&Sreset_this_command_lengths
);
11076 defsubr (&Sclear_this_command_keys
);
11077 defsubr (&Ssuspend_emacs
);
11078 defsubr (&Sabort_recursive_edit
);
11079 defsubr (&Sexit_recursive_edit
);
11080 defsubr (&Srecursion_depth
);
11081 defsubr (&Stop_level
);
11082 defsubr (&Sdiscard_input
);
11083 defsubr (&Sopen_dribble_file
);
11084 defsubr (&Sset_input_mode
);
11085 defsubr (&Scurrent_input_mode
);
11086 defsubr (&Sexecute_extended_command
);
11087 defsubr (&Sposn_at_point
);
11088 defsubr (&Sposn_at_x_y
);
11090 DEFVAR_LISP ("last-command-char", &last_command_char
,
11091 doc
: /* Last input event that was part of a command. */);
11093 DEFVAR_LISP_NOPRO ("last-command-event", &last_command_char
,
11094 doc
: /* Last input event that was part of a command. */);
11096 DEFVAR_LISP ("last-nonmenu-event", &last_nonmenu_event
,
11097 doc
: /* Last input event in a command, except for mouse menu events.
11098 Mouse menus give back keys that don't look like mouse events;
11099 this variable holds the actual mouse event that led to the menu,
11100 so that you can determine whether the command was run by mouse or not. */);
11102 DEFVAR_LISP ("last-input-char", &last_input_char
,
11103 doc
: /* Last input event. */);
11105 DEFVAR_LISP_NOPRO ("last-input-event", &last_input_char
,
11106 doc
: /* Last input event. */);
11108 DEFVAR_LISP ("unread-command-events", &Vunread_command_events
,
11109 doc
: /* List of events to be read as the command input.
11110 These events are processed first, before actual keyboard input. */);
11111 Vunread_command_events
= Qnil
;
11113 DEFVAR_INT ("unread-command-char", &unread_command_char
,
11114 doc
: /* If not -1, an object to be read as next command input event. */);
11116 DEFVAR_LISP ("unread-post-input-method-events", &Vunread_post_input_method_events
,
11117 doc
: /* List of events to be processed as input by input methods.
11118 These events are processed after `unread-command-events', but
11119 before actual keyboard input. */);
11120 Vunread_post_input_method_events
= Qnil
;
11122 DEFVAR_LISP ("unread-input-method-events", &Vunread_input_method_events
,
11123 doc
: /* List of events to be processed as input by input methods.
11124 These events are processed after `unread-command-events', but
11125 before actual keyboard input. */);
11126 Vunread_input_method_events
= Qnil
;
11128 DEFVAR_LISP ("meta-prefix-char", &meta_prefix_char
,
11129 doc
: /* Meta-prefix character code.
11130 Meta-foo as command input turns into this character followed by foo. */);
11131 XSETINT (meta_prefix_char
, 033);
11133 DEFVAR_KBOARD ("last-command", Vlast_command
,
11134 doc
: /* The last command executed.
11135 Normally a symbol with a function definition, but can be whatever was found
11136 in the keymap, or whatever the variable `this-command' was set to by that
11139 The value `mode-exit' is special; it means that the previous command
11140 read an event that told it to exit, and it did so and unread that event.
11141 In other words, the present command is the event that made the previous
11144 The value `kill-region' is special; it means that the previous command
11145 was a kill command. */);
11147 DEFVAR_KBOARD ("real-last-command", Vreal_last_command
,
11148 doc
: /* Same as `last-command', but never altered by Lisp code. */);
11150 DEFVAR_LISP ("this-command", &Vthis_command
,
11151 doc
: /* The command now being executed.
11152 The command can set this variable; whatever is put here
11153 will be in `last-command' during the following command. */);
11154 Vthis_command
= Qnil
;
11156 DEFVAR_LISP ("this-original-command", &Vthis_original_command
,
11157 doc
: /* The command bound to the current key sequence before remapping.
11158 It equals `this-command' if the original command was not remapped through
11159 any of the active keymaps. Otherwise, the value of `this-command' is the
11160 result of looking up the original command in the active keymaps. */);
11161 Vthis_original_command
= Qnil
;
11163 DEFVAR_INT ("auto-save-interval", &auto_save_interval
,
11164 doc
: /* *Number of input events between auto-saves.
11165 Zero means disable autosaving due to number of characters typed. */);
11166 auto_save_interval
= 300;
11168 DEFVAR_LISP ("auto-save-timeout", &Vauto_save_timeout
,
11169 doc
: /* *Number of seconds idle time before auto-save.
11170 Zero or nil means disable auto-saving due to idleness.
11171 After auto-saving due to this many seconds of idle time,
11172 Emacs also does a garbage collection if that seems to be warranted. */);
11173 XSETFASTINT (Vauto_save_timeout
, 30);
11175 DEFVAR_LISP ("echo-keystrokes", &Vecho_keystrokes
,
11176 doc
: /* *Nonzero means echo unfinished commands after this many seconds of pause.
11177 The value may be integer or floating point. */);
11178 Vecho_keystrokes
= make_number (1);
11180 DEFVAR_INT ("polling-period", &polling_period
,
11181 doc
: /* *Interval between polling for input during Lisp execution.
11182 The reason for polling is to make C-g work to stop a running program.
11183 Polling is needed only when using X windows and SIGIO does not work.
11184 Polling is automatically disabled in all other cases. */);
11185 polling_period
= 2;
11187 DEFVAR_LISP ("double-click-time", &Vdouble_click_time
,
11188 doc
: /* *Maximum time between mouse clicks to make a double-click.
11189 Measured in milliseconds. nil means disable double-click recognition;
11190 t means double-clicks have no time limit and are detected
11191 by position only. */);
11192 Vdouble_click_time
= make_number (500);
11194 DEFVAR_INT ("double-click-fuzz", &double_click_fuzz
,
11195 doc
: /* *Maximum mouse movement between clicks to make a double-click.
11196 On window-system frames, value is the number of pixels the mouse may have
11197 moved horizontally or vertically between two clicks to make a double-click.
11198 On non window-system frames, value is interpreted in units of 1/8 characters
11201 This variable is also the threshold for motion of the mouse
11202 to count as a drag. */);
11203 double_click_fuzz
= 3;
11205 DEFVAR_BOOL ("inhibit-local-menu-bar-menus", &inhibit_local_menu_bar_menus
,
11206 doc
: /* *Non-nil means inhibit local map menu bar menus. */);
11207 inhibit_local_menu_bar_menus
= 0;
11209 DEFVAR_INT ("num-input-keys", &num_input_keys
,
11210 doc
: /* Number of complete key sequences read as input so far.
11211 This includes key sequences read from keyboard macros.
11212 The number is effectively the number of interactive command invocations. */);
11213 num_input_keys
= 0;
11215 DEFVAR_INT ("num-nonmacro-input-events", &num_nonmacro_input_events
,
11216 doc
: /* Number of input events read from the keyboard so far.
11217 This does not include events generated by keyboard macros. */);
11218 num_nonmacro_input_events
= 0;
11220 DEFVAR_LISP ("last-event-frame", &Vlast_event_frame
,
11221 doc
: /* The frame in which the most recently read event occurred.
11222 If the last event came from a keyboard macro, this is set to `macro'. */);
11223 Vlast_event_frame
= Qnil
;
11225 /* This variable is set up in sysdep.c. */
11226 DEFVAR_LISP ("tty-erase-char", &Vtty_erase_char
,
11227 doc
: /* The ERASE character as set by the user with stty. */);
11229 DEFVAR_LISP ("help-char", &Vhelp_char
,
11230 doc
: /* Character to recognize as meaning Help.
11231 When it is read, do `(eval help-form)', and display result if it's a string.
11232 If the value of `help-form' is nil, this char can be read normally. */);
11233 XSETINT (Vhelp_char
, Ctl ('H'));
11235 DEFVAR_LISP ("help-event-list", &Vhelp_event_list
,
11236 doc
: /* List of input events to recognize as meaning Help.
11237 These work just like the value of `help-char' (see that). */);
11238 Vhelp_event_list
= Qnil
;
11240 DEFVAR_LISP ("help-form", &Vhelp_form
,
11241 doc
: /* Form to execute when character `help-char' is read.
11242 If the form returns a string, that string is displayed.
11243 If `help-form' is nil, the help char is not recognized. */);
11246 DEFVAR_LISP ("prefix-help-command", &Vprefix_help_command
,
11247 doc
: /* Command to run when `help-char' character follows a prefix key.
11248 This command is used only when there is no actual binding
11249 for that character after that prefix key. */);
11250 Vprefix_help_command
= Qnil
;
11252 DEFVAR_LISP ("top-level", &Vtop_level
,
11253 doc
: /* Form to evaluate when Emacs starts up.
11254 Useful to set before you dump a modified Emacs. */);
11257 DEFVAR_LISP ("keyboard-translate-table", &Vkeyboard_translate_table
,
11258 doc
: /* Translate table for keyboard input, or nil.
11259 If non-nil, the value should be a char-table. Each character read
11260 from the keyboard is looked up in this char-table. If the value found
11261 there is non-nil, then it is used instead of the actual input character.
11263 The value can also be a string or vector, but this is considered obsolete.
11264 If it is a string or vector of length N, character codes N and up are left
11265 untranslated. In a vector, an element which is nil means "no translation".
11267 This is applied to the characters supplied to input methods, not their
11268 output. See also `translation-table-for-input'. */);
11269 Vkeyboard_translate_table
= Qnil
;
11271 DEFVAR_BOOL ("cannot-suspend", &cannot_suspend
,
11272 doc
: /* Non-nil means to always spawn a subshell instead of suspending.
11273 \(Even if the operating system has support for stopping a process.\) */);
11274 cannot_suspend
= 0;
11276 DEFVAR_BOOL ("menu-prompting", &menu_prompting
,
11277 doc
: /* Non-nil means prompt with menus when appropriate.
11278 This is done when reading from a keymap that has a prompt string,
11279 for elements that have prompt strings.
11280 The menu is displayed on the screen
11281 if X menus were enabled at configuration
11282 time and the previous event was a mouse click prefix key.
11283 Otherwise, menu prompting uses the echo area. */);
11284 menu_prompting
= 1;
11286 DEFVAR_LISP ("menu-prompt-more-char", &menu_prompt_more_char
,
11287 doc
: /* Character to see next line of menu prompt.
11288 Type this character while in a menu prompt to rotate around the lines of it. */);
11289 XSETINT (menu_prompt_more_char
, ' ');
11291 DEFVAR_INT ("extra-keyboard-modifiers", &extra_keyboard_modifiers
,
11292 doc
: /* A mask of additional modifier keys to use with every keyboard character.
11293 Emacs applies the modifiers of the character stored here to each keyboard
11294 character it reads. For example, after evaluating the expression
11295 (setq extra-keyboard-modifiers ?\\C-x)
11296 all input characters will have the control modifier applied to them.
11298 Note that the character ?\\C-@, equivalent to the integer zero, does
11299 not count as a control character; rather, it counts as a character
11300 with no modifiers; thus, setting `extra-keyboard-modifiers' to zero
11301 cancels any modification. */);
11302 extra_keyboard_modifiers
= 0;
11304 DEFVAR_LISP ("deactivate-mark", &Vdeactivate_mark
,
11305 doc
: /* If an editing command sets this to t, deactivate the mark afterward.
11306 The command loop sets this to nil before each command,
11307 and tests the value when the command returns.
11308 Buffer modification stores t in this variable. */);
11309 Vdeactivate_mark
= Qnil
;
11311 DEFVAR_LISP ("command-hook-internal", &Vcommand_hook_internal
,
11312 doc
: /* Temporary storage of pre-command-hook or post-command-hook. */);
11313 Vcommand_hook_internal
= Qnil
;
11315 DEFVAR_LISP ("pre-command-hook", &Vpre_command_hook
,
11316 doc
: /* Normal hook run before each command is executed.
11317 If an unhandled error happens in running this hook,
11318 the hook value is set to nil, since otherwise the error
11319 might happen repeatedly and make Emacs nonfunctional. */);
11320 Vpre_command_hook
= Qnil
;
11322 DEFVAR_LISP ("post-command-hook", &Vpost_command_hook
,
11323 doc
: /* Normal hook run after each command is executed.
11324 If an unhandled error happens in running this hook,
11325 the hook value is set to nil, since otherwise the error
11326 might happen repeatedly and make Emacs nonfunctional. */);
11327 Vpost_command_hook
= Qnil
;
11330 DEFVAR_LISP ("echo-area-clear-hook", ...,
11331 doc
: /* Normal hook run when clearing the echo area. */);
11333 Qecho_area_clear_hook
= intern ("echo-area-clear-hook");
11334 staticpro (&Qecho_area_clear_hook
);
11335 SET_SYMBOL_VALUE (Qecho_area_clear_hook
, Qnil
);
11337 DEFVAR_LISP ("lucid-menu-bar-dirty-flag", &Vlucid_menu_bar_dirty_flag
,
11338 doc
: /* Non-nil means menu bar, specified Lucid style, needs to be recomputed. */);
11339 Vlucid_menu_bar_dirty_flag
= Qnil
;
11341 DEFVAR_LISP ("menu-bar-final-items", &Vmenu_bar_final_items
,
11342 doc
: /* List of menu bar items to move to the end of the menu bar.
11343 The elements of the list are event types that may have menu bar bindings. */);
11344 Vmenu_bar_final_items
= Qnil
;
11346 DEFVAR_KBOARD ("overriding-terminal-local-map",
11347 Voverriding_terminal_local_map
,
11348 doc
: /* Per-terminal keymap that overrides all other local keymaps.
11349 If this variable is non-nil, it is used as a keymap instead of the
11350 buffer's local map, and the minor mode keymaps and text property keymaps.
11351 It also replaces `overriding-local-map'.
11353 This variable is intended to let commands such as `universal-argument'
11354 set up a different keymap for reading the next command. */);
11356 DEFVAR_LISP ("overriding-local-map", &Voverriding_local_map
,
11357 doc
: /* Keymap that overrides all other local keymaps.
11358 If this variable is non-nil, it is used as a keymap--replacing the
11359 buffer's local map, the minor mode keymaps, and char property keymaps. */);
11360 Voverriding_local_map
= Qnil
;
11362 DEFVAR_LISP ("overriding-local-map-menu-flag", &Voverriding_local_map_menu_flag
,
11363 doc
: /* Non-nil means `overriding-local-map' applies to the menu bar.
11364 Otherwise, the menu bar continues to reflect the buffer's local map
11365 and the minor mode maps regardless of `overriding-local-map'. */);
11366 Voverriding_local_map_menu_flag
= Qnil
;
11368 DEFVAR_LISP ("special-event-map", &Vspecial_event_map
,
11369 doc
: /* Keymap defining bindings for special events to execute at low level. */);
11370 Vspecial_event_map
= Fcons (intern ("keymap"), Qnil
);
11372 DEFVAR_LISP ("track-mouse", &do_mouse_tracking
,
11373 doc
: /* *Non-nil means generate motion events for mouse motion. */);
11375 DEFVAR_KBOARD ("system-key-alist", Vsystem_key_alist
,
11376 doc
: /* Alist of system-specific X windows key symbols.
11377 Each element should have the form (N . SYMBOL) where N is the
11378 numeric keysym code (sans the \"system-specific\" bit 1<<28)
11379 and SYMBOL is its name. */);
11381 DEFVAR_LISP ("deferred-action-list", &Vdeferred_action_list
,
11382 doc
: /* List of deferred actions to be performed at a later time.
11383 The precise format isn't relevant here; we just check whether it is nil. */);
11384 Vdeferred_action_list
= Qnil
;
11386 DEFVAR_LISP ("deferred-action-function", &Vdeferred_action_function
,
11387 doc
: /* Function to call to handle deferred actions, after each command.
11388 This function is called with no arguments after each command
11389 whenever `deferred-action-list' is non-nil. */);
11390 Vdeferred_action_function
= Qnil
;
11392 DEFVAR_LISP ("suggest-key-bindings", &Vsuggest_key_bindings
,
11393 doc
: /* *Non-nil means show the equivalent key-binding when M-x command has one.
11394 The value can be a length of time to show the message for.
11395 If the value is non-nil and not a number, we wait 2 seconds. */);
11396 Vsuggest_key_bindings
= Qt
;
11398 DEFVAR_LISP ("timer-list", &Vtimer_list
,
11399 doc
: /* List of active absolute time timers in order of increasing time. */);
11400 Vtimer_list
= Qnil
;
11402 DEFVAR_LISP ("timer-idle-list", &Vtimer_idle_list
,
11403 doc
: /* List of active idle-time timers in order of increasing time. */);
11404 Vtimer_idle_list
= Qnil
;
11406 DEFVAR_LISP ("input-method-function", &Vinput_method_function
,
11407 doc
: /* If non-nil, the function that implements the current input method.
11408 It's called with one argument, a printing character that was just read.
11409 \(That means a character with code 040...0176.)
11410 Typically this function uses `read-event' to read additional events.
11411 When it does so, it should first bind `input-method-function' to nil
11412 so it will not be called recursively.
11414 The function should return a list of zero or more events
11415 to be used as input. If it wants to put back some events
11416 to be reconsidered, separately, by the input method,
11417 it can add them to the beginning of `unread-command-events'.
11419 The input method function can find in `input-method-previous-method'
11420 the previous echo area message.
11422 The input method function should refer to the variables
11423 `input-method-use-echo-area' and `input-method-exit-on-first-char'
11424 for guidance on what to do. */);
11425 Vinput_method_function
= Qnil
;
11427 DEFVAR_LISP ("input-method-previous-message",
11428 &Vinput_method_previous_message
,
11429 doc
: /* When `input-method-function' is called, hold the previous echo area message.
11430 This variable exists because `read-event' clears the echo area
11431 before running the input method. It is nil if there was no message. */);
11432 Vinput_method_previous_message
= Qnil
;
11434 DEFVAR_LISP ("show-help-function", &Vshow_help_function
,
11435 doc
: /* If non-nil, the function that implements the display of help.
11436 It's called with one argument, the help string to display. */);
11437 Vshow_help_function
= Qnil
;
11439 DEFVAR_LISP ("disable-point-adjustment", &Vdisable_point_adjustment
,
11440 doc
: /* If non-nil, suppress point adjustment after executing a command.
11442 After a command is executed, if point is moved into a region that has
11443 special properties (e.g. composition, display), we adjust point to
11444 the boundary of the region. But, when a command sets this variable to
11445 non-nil, we suppress the point adjustment.
11447 This variable is set to nil before reading a command, and is checked
11448 just after executing the command. */);
11449 Vdisable_point_adjustment
= Qnil
;
11451 DEFVAR_LISP ("global-disable-point-adjustment",
11452 &Vglobal_disable_point_adjustment
,
11453 doc
: /* *If non-nil, always suppress point adjustment.
11455 The default value is nil, in which case, point adjustment are
11456 suppressed only after special commands that set
11457 `disable-point-adjustment' (which see) to non-nil. */);
11458 Vglobal_disable_point_adjustment
= Qnil
;
11460 DEFVAR_LISP ("minibuffer-message-timeout", &Vminibuffer_message_timeout
,
11461 doc
: /* *How long to display an echo-area message when the minibuffer is active.
11462 If the value is not a number, such messages don't time out. */);
11463 Vminibuffer_message_timeout
= make_number (2);
11465 DEFVAR_LISP ("throw-on-input", &Vthrow_on_input
,
11466 doc
: /* If non-nil, any keyboard input throws to this symbol.
11467 The value of that variable is passed to `quit-flag' and later causes a
11468 peculiar kind of quitting. */);
11469 Vthrow_on_input
= Qnil
;
11473 keys_of_keyboard ()
11475 initial_define_key (global_map
, Ctl ('Z'), "suspend-emacs");
11476 initial_define_key (control_x_map
, Ctl ('Z'), "suspend-emacs");
11477 initial_define_key (meta_map
, Ctl ('C'), "exit-recursive-edit");
11478 initial_define_key (global_map
, Ctl (']'), "abort-recursive-edit");
11479 initial_define_key (meta_map
, 'x', "execute-extended-command");
11481 initial_define_lispy_key (Vspecial_event_map
, "delete-frame",
11482 "handle-delete-frame");
11483 /* Here we used to use `ignore-event' which would simple set prefix-arg to
11484 current-prefix-arg, as is done in `handle-switch-frame'.
11485 But `handle-switch-frame is not run from the special-map.
11486 Commands from that map are run in a special way that automatically
11487 preserves the prefix-arg. Restoring the prefix arg here is not just
11488 redundant but harmful:
11490 - current-prefix-arg is set to non-nil, prefix-arg is set to nil.
11491 - after the first prompt, the exit-minibuffer-hook is run which may
11492 iconify a frame and thus push a `iconify-frame' event.
11493 - after running exit-minibuffer-hook, current-prefix-arg is
11494 restored to the non-nil value it had before the prompt.
11495 - we enter the second prompt.
11496 current-prefix-arg is non-nil, prefix-arg is nil.
11497 - before running the first real event, we run the special iconify-frame
11498 event, but we pass the `special' arg to execute-command so
11499 current-prefix-arg and prefix-arg are left untouched.
11500 - here we foolishly copy the non-nil current-prefix-arg to prefix-arg.
11501 - the next key event will have a spuriously non-nil current-prefix-arg. */
11502 initial_define_lispy_key (Vspecial_event_map
, "iconify-frame",
11504 initial_define_lispy_key (Vspecial_event_map
, "make-frame-visible",
11506 /* Handling it at such a low-level causes read_key_sequence to get
11507 * confused because it doesn't realize that the current_buffer was
11508 * changed by read_char.
11510 * initial_define_lispy_key (Vspecial_event_map, "select-window",
11511 * "handle-select-window"); */
11512 initial_define_lispy_key (Vspecial_event_map
, "save-session",
11513 "handle-save-session");
11516 /* Mark the pointers in the kboard objects.
11517 Called by the Fgarbage_collector. */
11523 for (kb
= all_kboards
; kb
; kb
= kb
->next_kboard
)
11525 if (kb
->kbd_macro_buffer
)
11526 for (p
= kb
->kbd_macro_buffer
; p
< kb
->kbd_macro_ptr
; p
++)
11528 mark_object (kb
->Voverriding_terminal_local_map
);
11529 mark_object (kb
->Vlast_command
);
11530 mark_object (kb
->Vreal_last_command
);
11531 mark_object (kb
->Vprefix_arg
);
11532 mark_object (kb
->Vlast_prefix_arg
);
11533 mark_object (kb
->kbd_queue
);
11534 mark_object (kb
->defining_kbd_macro
);
11535 mark_object (kb
->Vlast_kbd_macro
);
11536 mark_object (kb
->Vsystem_key_alist
);
11537 mark_object (kb
->system_key_syms
);
11538 mark_object (kb
->Vdefault_minibuffer_frame
);
11539 mark_object (kb
->echo_string
);
11542 struct input_event
*event
;
11543 for (event
= kbd_fetch_ptr
; event
!= kbd_store_ptr
; event
++)
11545 if (event
== kbd_buffer
+ KBD_BUFFER_SIZE
)
11546 event
= kbd_buffer
;
11547 if (event
->kind
!= SELECTION_REQUEST_EVENT
11548 && event
->kind
!= SELECTION_CLEAR_EVENT
)
11550 mark_object (event
->x
);
11551 mark_object (event
->y
);
11553 mark_object (event
->frame_or_window
);
11554 mark_object (event
->arg
);
11559 /* arch-tag: 774e34d7-6d31-42f3-8397-e079a4e4c9ca
11560 (do not change this comment) */