1 /* Keyboard and mouse input; editor command loop.
2 Copyright (C) 1985, 1986, 1987, 1988, 1989, 1993, 1994, 1995,
3 1996, 1997, 1999, 2000, 2001, 2002, 2003, 2004,
4 2005 Free Software Foundation, Inc.
6 This file is part of GNU Emacs.
8 GNU Emacs is free software; you can redistribute it and/or modify
9 it under the terms of the GNU General Public License as published by
10 the Free Software Foundation; either version 2, or (at your option)
13 GNU Emacs is distributed in the hope that it will be useful,
14 but WITHOUT ANY WARRANTY; without even the implied warranty of
15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 GNU General Public License for more details.
18 You should have received a copy of the GNU General Public License
19 along with GNU Emacs; see the file COPYING. If not, write to
20 the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
21 Boston, MA 02110-1301, USA. */
29 #include "termhooks.h"
38 #include "dispextern.h"
40 #include "intervals.h"
42 #include "blockinput.h"
49 #ifdef HAVE_GTK_AND_PTHREAD
57 #include <sys/ioctl.h>
59 #endif /* not MSDOS */
61 #include "syssignal.h"
64 #include <sys/types.h>
73 /* This is to get the definitions of the XK_ symbols. */
80 #endif /* HAVE_NTGUI */
90 /* Variables for blockinput.h: */
92 /* Non-zero if interrupt input is blocked right now. */
93 int interrupt_input_blocked
;
95 /* Nonzero means an input interrupt has arrived
96 during the current critical section. */
97 int interrupt_input_pending
;
100 /* File descriptor to use for input. */
103 #ifdef HAVE_WINDOW_SYSTEM
104 /* Make all keyboard buffers much bigger when using X windows. */
106 /* But not too big (local data > 32K error) if on Mac OS Classic. */
107 #define KBD_BUFFER_SIZE 512
109 #define KBD_BUFFER_SIZE 4096
111 #else /* No X-windows, character input */
112 #define KBD_BUFFER_SIZE 4096
113 #endif /* No X-windows */
115 #define abs(x) ((x) >= 0 ? (x) : -(x))
117 /* Following definition copied from eval.c */
121 struct backtrace
*next
;
122 Lisp_Object
*function
;
123 Lisp_Object
*args
; /* Points to vector of args. */
124 int nargs
; /* length of vector. If nargs is UNEVALLED,
125 args points to slot holding list of
128 /* Nonzero means call value of debugger when done with this operation. */
133 KBOARD
*initial_kboard
;
134 KBOARD
*current_kboard
;
138 KBOARD the_only_kboard
;
141 /* Non-nil disable property on a command means
142 do not execute it; call disabled-command-function's value instead. */
143 Lisp_Object Qdisabled
, Qdisabled_command_function
;
145 #define NUM_RECENT_KEYS (100)
146 int recent_keys_index
; /* Index for storing next element into recent_keys */
147 int total_keys
; /* Total number of elements stored into recent_keys */
148 Lisp_Object recent_keys
; /* A vector, holding the last 100 keystrokes */
150 /* Vector holding the key sequence that invoked the current command.
151 It is reused for each command, and it may be longer than the current
152 sequence; this_command_key_count indicates how many elements
153 actually mean something.
154 It's easier to staticpro a single Lisp_Object than an array. */
155 Lisp_Object this_command_keys
;
156 int this_command_key_count
;
158 /* 1 after calling Freset_this_command_lengths.
160 int this_command_key_count_reset
;
162 /* This vector is used as a buffer to record the events that were actually read
163 by read_key_sequence. */
164 Lisp_Object raw_keybuf
;
165 int raw_keybuf_count
;
167 #define GROW_RAW_KEYBUF \
168 if (raw_keybuf_count == XVECTOR (raw_keybuf)->size) \
170 int newsize = 2 * XVECTOR (raw_keybuf)->size; \
172 new = Fmake_vector (make_number (newsize), Qnil); \
173 bcopy (XVECTOR (raw_keybuf)->contents, XVECTOR (new)->contents, \
174 raw_keybuf_count * sizeof (Lisp_Object)); \
178 /* Number of elements of this_command_keys
179 that precede this key sequence. */
180 int this_single_command_key_start
;
182 /* Record values of this_command_key_count and echo_length ()
183 before this command was read. */
184 static int before_command_key_count
;
185 static int before_command_echo_length
;
187 extern int minbuf_level
;
189 extern int message_enable_multibyte
;
191 extern struct backtrace
*backtrace_list
;
193 /* If non-nil, the function that implements the display of help.
194 It's called with one argument, the help string to display. */
196 Lisp_Object Vshow_help_function
;
198 /* If a string, the message displayed before displaying a help-echo
201 Lisp_Object Vpre_help_message
;
203 /* Nonzero means do menu prompting. */
205 static int menu_prompting
;
207 /* Character to see next line of menu prompt. */
209 static Lisp_Object menu_prompt_more_char
;
211 /* For longjmp to where kbd input is being done. */
213 static jmp_buf getcjmp
;
215 /* True while doing kbd input. */
216 int waiting_for_input
;
218 /* True while displaying for echoing. Delays C-g throwing. */
222 /* Non-null means we can start echoing at the next input pause even
223 though there is something in the echo area. */
225 static struct kboard
*ok_to_echo_at_next_pause
;
227 /* The kboard last echoing, or null for none. Reset to 0 in
228 cancel_echoing. If non-null, and a current echo area message
229 exists, and echo_message_buffer is eq to the current message
230 buffer, we know that the message comes from echo_kboard. */
232 struct kboard
*echo_kboard
;
234 /* The buffer used for echoing. Set in echo_now, reset in
237 Lisp_Object echo_message_buffer
;
239 /* Nonzero means disregard local maps for the menu bar. */
240 static int inhibit_local_menu_bar_menus
;
242 /* Nonzero means C-g should cause immediate error-signal. */
245 /* The user's ERASE setting. */
246 Lisp_Object Vtty_erase_char
;
248 /* Character to recognize as the help char. */
249 Lisp_Object Vhelp_char
;
251 /* List of other event types to recognize as meaning "help". */
252 Lisp_Object Vhelp_event_list
;
254 /* Form to execute when help char is typed. */
255 Lisp_Object Vhelp_form
;
257 /* Command to run when the help character follows a prefix key. */
258 Lisp_Object Vprefix_help_command
;
260 /* List of items that should move to the end of the menu bar. */
261 Lisp_Object Vmenu_bar_final_items
;
263 /* Non-nil means show the equivalent key-binding for
264 any M-x command that has one.
265 The value can be a length of time to show the message for.
266 If the value is non-nil and not a number, we wait 2 seconds. */
267 Lisp_Object Vsuggest_key_bindings
;
269 /* How long to display an echo-area message when the minibuffer is active.
270 If the value is not a number, such messages don't time out. */
271 Lisp_Object Vminibuffer_message_timeout
;
273 /* Character that causes a quit. Normally C-g.
275 If we are running on an ordinary terminal, this must be an ordinary
276 ASCII char, since we want to make it our interrupt character.
278 If we are not running on an ordinary terminal, it still needs to be
279 an ordinary ASCII char. This character needs to be recognized in
280 the input interrupt handler. At this point, the keystroke is
281 represented as a struct input_event, while the desired quit
282 character is specified as a lispy event. The mapping from struct
283 input_events to lispy events cannot run in an interrupt handler,
284 and the reverse mapping is difficult for anything but ASCII
287 FOR THESE ELABORATE AND UNSATISFYING REASONS, quit_char must be an
291 extern Lisp_Object current_global_map
;
292 extern int minibuf_level
;
294 /* If non-nil, this is a map that overrides all other local maps. */
295 Lisp_Object Voverriding_local_map
;
297 /* If non-nil, Voverriding_local_map applies to the menu bar. */
298 Lisp_Object Voverriding_local_map_menu_flag
;
300 /* Keymap that defines special misc events that should
301 be processed immediately at a low level. */
302 Lisp_Object Vspecial_event_map
;
304 /* Current depth in recursive edits. */
305 int command_loop_level
;
307 /* Total number of times command_loop has read a key sequence. */
308 EMACS_INT num_input_keys
;
310 /* Last input character read as a command. */
311 Lisp_Object last_command_char
;
313 /* Last input character read as a command, not counting menus
314 reached by the mouse. */
315 Lisp_Object last_nonmenu_event
;
317 /* Last input character read for any purpose. */
318 Lisp_Object last_input_char
;
320 /* If not Qnil, a list of objects to be read as subsequent command input. */
321 Lisp_Object Vunread_command_events
;
323 /* If not Qnil, a list of objects to be read as subsequent command input
324 including input method processing. */
325 Lisp_Object Vunread_input_method_events
;
327 /* If not Qnil, a list of objects to be read as subsequent command input
328 but NOT including input method processing. */
329 Lisp_Object Vunread_post_input_method_events
;
331 /* If not -1, an event to be read as subsequent command input. */
332 EMACS_INT unread_command_char
;
334 /* If not Qnil, this is a switch-frame event which we decided to put
335 off until the end of a key sequence. This should be read as the
336 next command input, after any unread_command_events.
338 read_key_sequence uses this to delay switch-frame events until the
339 end of the key sequence; Fread_char uses it to put off switch-frame
340 events until a non-ASCII event is acceptable as input. */
341 Lisp_Object unread_switch_frame
;
343 /* A mask of extra modifier bits to put into every keyboard char. */
344 EMACS_INT extra_keyboard_modifiers
;
346 /* Char to use as prefix when a meta character is typed in.
347 This is bound on entry to minibuffer in case ESC is changed there. */
349 Lisp_Object meta_prefix_char
;
351 /* Last size recorded for a current buffer which is not a minibuffer. */
352 static int last_non_minibuf_size
;
354 /* Number of idle seconds before an auto-save and garbage collection. */
355 static Lisp_Object Vauto_save_timeout
;
357 /* Total number of times read_char has returned. */
358 int num_input_events
;
360 /* Total number of times read_char has returned, outside of macros. */
361 EMACS_INT num_nonmacro_input_events
;
363 /* Auto-save automatically when this many characters have been typed
364 since the last time. */
366 static EMACS_INT auto_save_interval
;
368 /* Value of num_nonmacro_input_events as of last auto save. */
372 /* The command being executed by the command loop.
373 Commands may set this, and the value set will be copied into
374 current_kboard->Vlast_command instead of the actual command. */
375 Lisp_Object Vthis_command
;
377 /* This is like Vthis_command, except that commands never set it. */
378 Lisp_Object real_this_command
;
380 /* If the lookup of the command returns a binding, the original
381 command is stored in this-original-command. It is nil otherwise. */
382 Lisp_Object Vthis_original_command
;
384 /* The value of point when the last command was executed. */
385 int last_point_position
;
387 /* The buffer that was current when the last command was started. */
388 Lisp_Object last_point_position_buffer
;
390 /* The frame in which the last input event occurred, or Qmacro if the
391 last event came from a macro. We use this to determine when to
392 generate switch-frame events. This may be cleared by functions
393 like Fselect_frame, to make sure that a switch-frame event is
394 generated by the next character. */
395 Lisp_Object internal_last_event_frame
;
397 /* A user-visible version of the above, intended to allow users to
398 figure out where the last event came from, if the event doesn't
399 carry that information itself (i.e. if it was a character). */
400 Lisp_Object Vlast_event_frame
;
402 /* The timestamp of the last input event we received from the X server.
403 X Windows wants this for selection ownership. */
404 unsigned long last_event_timestamp
;
406 Lisp_Object Qself_insert_command
;
407 Lisp_Object Qforward_char
;
408 Lisp_Object Qbackward_char
;
409 Lisp_Object Qundefined
;
410 Lisp_Object Qtimer_event_handler
;
412 /* read_key_sequence stores here the command definition of the
413 key sequence that it reads. */
414 Lisp_Object read_key_sequence_cmd
;
416 /* Echo unfinished commands after this many seconds of pause. */
417 Lisp_Object Vecho_keystrokes
;
419 /* Form to evaluate (if non-nil) when Emacs is started. */
420 Lisp_Object Vtop_level
;
422 /* User-supplied table to translate input characters. */
423 Lisp_Object Vkeyboard_translate_table
;
425 /* Keymap mapping ASCII function key sequences onto their preferred forms. */
426 extern Lisp_Object Vfunction_key_map
;
428 /* Another keymap that maps key sequences into key sequences.
429 This one takes precedence over ordinary definitions. */
430 extern Lisp_Object Vkey_translation_map
;
432 /* If non-nil, this implements the current input method. */
433 Lisp_Object Vinput_method_function
;
434 Lisp_Object Qinput_method_function
;
436 /* When we call Vinput_method_function,
437 this holds the echo area message that was just erased. */
438 Lisp_Object Vinput_method_previous_message
;
440 /* Non-nil means deactivate the mark at end of this command. */
441 Lisp_Object Vdeactivate_mark
;
443 /* Menu bar specified in Lucid Emacs fashion. */
445 Lisp_Object Vlucid_menu_bar_dirty_flag
;
446 Lisp_Object Qrecompute_lucid_menubar
, Qactivate_menubar_hook
;
448 Lisp_Object Qecho_area_clear_hook
;
450 /* Hooks to run before and after each command. */
451 Lisp_Object Qpre_command_hook
, Vpre_command_hook
;
452 Lisp_Object Qpost_command_hook
, Vpost_command_hook
;
453 Lisp_Object Qcommand_hook_internal
, Vcommand_hook_internal
;
455 /* List of deferred actions to be performed at a later time.
456 The precise format isn't relevant here; we just check whether it is nil. */
457 Lisp_Object Vdeferred_action_list
;
459 /* Function to call to handle deferred actions, when there are any. */
460 Lisp_Object Vdeferred_action_function
;
461 Lisp_Object Qdeferred_action_function
;
463 Lisp_Object Qinput_method_exit_on_first_char
;
464 Lisp_Object Qinput_method_use_echo_area
;
466 /* File in which we write all commands we read. */
469 /* Nonzero if input is available. */
472 /* 1 if should obey 0200 bit in input chars as "Meta", 2 if should
473 keep 0200 bit in input chars. 0 to ignore the 0200 bit. */
477 extern char *pending_malloc_warning
;
479 /* Circular buffer for pre-read keyboard input. */
481 static struct input_event kbd_buffer
[KBD_BUFFER_SIZE
];
483 /* Pointer to next available character in kbd_buffer.
484 If kbd_fetch_ptr == kbd_store_ptr, the buffer is empty.
485 This may be kbd_buffer + KBD_BUFFER_SIZE, meaning that the
486 next available char is in kbd_buffer[0]. */
487 static struct input_event
*kbd_fetch_ptr
;
489 /* Pointer to next place to store character in kbd_buffer. This
490 may be kbd_buffer + KBD_BUFFER_SIZE, meaning that the next
491 character should go in kbd_buffer[0]. */
492 static struct input_event
* volatile kbd_store_ptr
;
494 /* The above pair of variables forms a "queue empty" flag. When we
495 enqueue a non-hook event, we increment kbd_store_ptr. When we
496 dequeue a non-hook event, we increment kbd_fetch_ptr. We say that
497 there is input available iff the two pointers are not equal.
499 Why not just have a flag set and cleared by the enqueuing and
500 dequeuing functions? Such a flag could be screwed up by interrupts
501 at inopportune times. */
503 /* If this flag is non-nil, we check mouse_moved to see when the
504 mouse moves, and motion events will appear in the input stream.
505 Otherwise, mouse motion is ignored. */
506 Lisp_Object do_mouse_tracking
;
508 /* Symbols to head events. */
509 Lisp_Object Qmouse_movement
;
510 Lisp_Object Qscroll_bar_movement
;
511 Lisp_Object Qswitch_frame
;
512 Lisp_Object Qdelete_frame
;
513 Lisp_Object Qiconify_frame
;
514 Lisp_Object Qmake_frame_visible
;
515 Lisp_Object Qselect_window
;
516 Lisp_Object Qhelp_echo
;
519 Lisp_Object Qmouse_fixup_help_message
;
522 /* Symbols to denote kinds of events. */
523 Lisp_Object Qfunction_key
;
524 Lisp_Object Qmouse_click
;
525 #if defined (WINDOWSNT) || defined (MAC_OS)
526 Lisp_Object Qlanguage_change
;
528 Lisp_Object Qdrag_n_drop
;
529 Lisp_Object Qsave_session
;
531 Lisp_Object Qmac_apple_event
;
534 /* Lisp_Object Qmouse_movement; - also an event header */
536 /* Properties of event headers. */
537 Lisp_Object Qevent_kind
;
538 Lisp_Object Qevent_symbol_elements
;
540 /* menu item parts */
541 Lisp_Object Qmenu_alias
;
542 Lisp_Object Qmenu_enable
;
543 Lisp_Object QCenable
, QCvisible
, QChelp
, QCfilter
, QCkeys
, QCkey_sequence
;
544 Lisp_Object QCbutton
, QCtoggle
, QCradio
;
545 extern Lisp_Object Vdefine_key_rebound_commands
;
546 extern Lisp_Object Qmenu_item
;
548 /* An event header symbol HEAD may have a property named
549 Qevent_symbol_element_mask, which is of the form (BASE MODIFIERS);
550 BASE is the base, unmodified version of HEAD, and MODIFIERS is the
551 mask of modifiers applied to it. If present, this is used to help
552 speed up parse_modifiers. */
553 Lisp_Object Qevent_symbol_element_mask
;
555 /* An unmodified event header BASE may have a property named
556 Qmodifier_cache, which is an alist mapping modifier masks onto
557 modified versions of BASE. If present, this helps speed up
559 Lisp_Object Qmodifier_cache
;
561 /* Symbols to use for parts of windows. */
562 Lisp_Object Qmode_line
;
563 Lisp_Object Qvertical_line
;
564 Lisp_Object Qvertical_scroll_bar
;
565 Lisp_Object Qmenu_bar
;
566 extern Lisp_Object Qleft_margin
, Qright_margin
;
567 extern Lisp_Object Qleft_fringe
, Qright_fringe
;
568 extern Lisp_Object QCmap
;
570 Lisp_Object
recursive_edit_unwind (), command_loop ();
571 Lisp_Object
Fthis_command_keys ();
572 Lisp_Object Qextended_command_history
;
573 EMACS_TIME
timer_check ();
575 extern Lisp_Object Vhistory_length
, Vtranslation_table_for_input
;
577 extern char *x_get_keysym_name ();
579 static void record_menu_key ();
580 static int echo_length ();
582 Lisp_Object Qpolling_period
;
584 /* List of absolute timers. Appears in order of next scheduled event. */
585 Lisp_Object Vtimer_list
;
587 /* List of idle time timers. Appears in order of next scheduled event. */
588 Lisp_Object Vtimer_idle_list
;
590 /* Incremented whenever a timer is run. */
593 extern Lisp_Object Vprint_level
, Vprint_length
;
595 /* Address (if not 0) of EMACS_TIME to zero out if a SIGIO interrupt
597 EMACS_TIME
*input_available_clear_time
;
599 /* Nonzero means use SIGIO interrupts; zero means use CBREAK mode.
600 Default is 1 if INTERRUPT_INPUT is defined. */
603 /* Nonzero while interrupts are temporarily deferred during redisplay. */
604 int interrupts_deferred
;
606 /* Nonzero means use ^S/^Q for flow control. */
609 /* Allow m- file to inhibit use of FIONREAD. */
610 #ifdef BROKEN_FIONREAD
614 /* We are unable to use interrupts if FIONREAD is not available,
615 so flush SIGIO so we won't try. */
616 #if !defined (FIONREAD)
622 /* If we support a window system, turn on the code to poll periodically
623 to detect C-g. It isn't actually used when doing interrupt input. */
624 #if defined(HAVE_WINDOW_SYSTEM) && !defined(USE_ASYNC_EVENTS)
625 #define POLL_FOR_INPUT
628 /* After a command is executed, if point is moved into a region that
629 has specific properties (e.g. composition, display), we adjust
630 point to the boundary of the region. But, if a command sets this
631 variable to non-nil, we suppress this point adjustment. This
632 variable is set to nil before reading a command. */
634 Lisp_Object Vdisable_point_adjustment
;
636 /* If non-nil, always disable point adjustment. */
638 Lisp_Object Vglobal_disable_point_adjustment
;
640 /* The time when Emacs started being idle. */
642 static EMACS_TIME timer_idleness_start_time
;
644 /* After Emacs stops being idle, this saves the last value
645 of timer_idleness_start_time from when it was idle. */
647 static EMACS_TIME timer_last_idleness_start_time
;
650 /* Global variable declarations. */
652 /* Flags for readable_events. */
653 #define READABLE_EVENTS_DO_TIMERS_NOW (1 << 0)
654 #define READABLE_EVENTS_FILTER_EVENTS (1 << 1)
655 #define READABLE_EVENTS_IGNORE_SQUEEZABLES (1 << 2)
657 /* Function for init_keyboard to call with no args (if nonzero). */
658 void (*keyboard_init_hook
) ();
660 static int read_avail_input
P_ ((int));
661 static void get_input_pending
P_ ((int *, int));
662 static int readable_events
P_ ((int));
663 static Lisp_Object read_char_x_menu_prompt
P_ ((int, Lisp_Object
*,
664 Lisp_Object
, int *));
665 static Lisp_Object
read_char_x_menu_prompt ();
666 static Lisp_Object read_char_minibuf_menu_prompt
P_ ((int, int,
668 static Lisp_Object make_lispy_event
P_ ((struct input_event
*));
670 static Lisp_Object make_lispy_movement
P_ ((struct frame
*, Lisp_Object
,
671 enum scroll_bar_part
,
672 Lisp_Object
, Lisp_Object
,
675 static Lisp_Object modify_event_symbol
P_ ((int, unsigned, Lisp_Object
,
676 Lisp_Object
, char **,
677 Lisp_Object
*, unsigned));
678 static Lisp_Object make_lispy_switch_frame
P_ ((Lisp_Object
));
679 static int parse_solitary_modifier
P_ ((Lisp_Object
));
680 static int parse_solitary_modifier ();
681 static void save_getcjmp
P_ ((jmp_buf));
682 static void save_getcjmp ();
683 static void restore_getcjmp
P_ ((jmp_buf));
684 static Lisp_Object apply_modifiers
P_ ((int, Lisp_Object
));
685 static void clear_event
P_ ((struct input_event
*));
686 static void any_kboard_state
P_ ((void));
687 static SIGTYPE interrupt_signal
P_ ((int signalnum
));
688 static void timer_start_idle
P_ ((void));
689 static void timer_stop_idle
P_ ((void));
690 static void timer_resume_idle
P_ ((void));
692 /* Nonzero means don't try to suspend even if the operating system seems
694 static int cannot_suspend
;
696 extern Lisp_Object Qidentity
, Qonly
;
698 /* Install the string STR as the beginning of the string of echoing,
699 so that it serves as a prompt for the next character.
700 Also start echoing. */
706 current_kboard
->echo_string
= str
;
707 current_kboard
->echo_after_prompt
= SCHARS (str
);
711 /* Add C to the echo string, if echoing is going on.
712 C can be a character, which is printed prettily ("M-C-x" and all that
713 jazz), or a symbol, whose name is printed. */
719 if (current_kboard
->immediate_echo
)
721 int size
= KEY_DESCRIPTION_SIZE
+ 100;
722 char *buffer
= (char *) alloca (size
);
724 Lisp_Object echo_string
;
726 echo_string
= current_kboard
->echo_string
;
728 /* If someone has passed us a composite event, use its head symbol. */
733 ptr
= push_key_description (XINT (c
), ptr
, 1);
735 else if (SYMBOLP (c
))
737 Lisp_Object name
= SYMBOL_NAME (c
);
738 int nbytes
= SBYTES (name
);
740 if (size
- (ptr
- buffer
) < nbytes
)
742 int offset
= ptr
- buffer
;
743 size
= max (2 * size
, size
+ nbytes
);
744 buffer
= (char *) alloca (size
);
745 ptr
= buffer
+ offset
;
748 ptr
+= copy_text (SDATA (name
), ptr
, nbytes
,
749 STRING_MULTIBYTE (name
), 1);
752 if ((NILP (echo_string
) || SCHARS (echo_string
) == 0)
755 const char *text
= " (Type ? for further options)";
756 int len
= strlen (text
);
758 if (size
- (ptr
- buffer
) < len
)
760 int offset
= ptr
- buffer
;
762 buffer
= (char *) alloca (size
);
763 ptr
= buffer
+ offset
;
766 bcopy (text
, ptr
, len
);
770 /* Replace a dash from echo_dash with a space, otherwise
771 add a space at the end as a separator between keys. */
772 if (STRINGP (echo_string
)
773 && SCHARS (echo_string
) > 1)
775 Lisp_Object last_char
, prev_char
, idx
;
777 idx
= make_number (SCHARS (echo_string
) - 2);
778 prev_char
= Faref (echo_string
, idx
);
780 idx
= make_number (SCHARS (echo_string
) - 1);
781 last_char
= Faref (echo_string
, idx
);
783 /* We test PREV_CHAR to make sure this isn't the echoing
785 if (XINT (last_char
) == '-' && XINT (prev_char
) != ' ')
786 Faset (echo_string
, idx
, make_number (' '));
788 echo_string
= concat2 (echo_string
, build_string (" "));
791 current_kboard
->echo_string
792 = concat2 (echo_string
, make_string (buffer
, ptr
- buffer
));
798 /* Temporarily add a dash to the end of the echo string if it's not
799 empty, so that it serves as a mini-prompt for the very next character. */
804 /* Do nothing if not echoing at all. */
805 if (NILP (current_kboard
->echo_string
))
808 if (!current_kboard
->immediate_echo
809 && SCHARS (current_kboard
->echo_string
) == 0)
812 /* Do nothing if we just printed a prompt. */
813 if (current_kboard
->echo_after_prompt
814 == SCHARS (current_kboard
->echo_string
))
817 /* Do nothing if we have already put a dash at the end. */
818 if (SCHARS (current_kboard
->echo_string
) > 1)
820 Lisp_Object last_char
, prev_char
, idx
;
822 idx
= make_number (SCHARS (current_kboard
->echo_string
) - 2);
823 prev_char
= Faref (current_kboard
->echo_string
, idx
);
825 idx
= make_number (SCHARS (current_kboard
->echo_string
) - 1);
826 last_char
= Faref (current_kboard
->echo_string
, idx
);
828 if (XINT (last_char
) == '-' && XINT (prev_char
) != ' ')
832 /* Put a dash at the end of the buffer temporarily,
833 but make it go away when the next character is added. */
834 current_kboard
->echo_string
= concat2 (current_kboard
->echo_string
,
839 /* Display the current echo string, and begin echoing if not already
845 if (!current_kboard
->immediate_echo
)
848 current_kboard
->immediate_echo
= 1;
850 for (i
= 0; i
< this_command_key_count
; i
++)
854 /* Set before_command_echo_length to the value that would
855 have been saved before the start of this subcommand in
856 command_loop_1, if we had already been echoing then. */
857 if (i
== this_single_command_key_start
)
858 before_command_echo_length
= echo_length ();
860 c
= XVECTOR (this_command_keys
)->contents
[i
];
861 if (! (EVENT_HAS_PARAMETERS (c
)
862 && EQ (EVENT_HEAD_KIND (EVENT_HEAD (c
)), Qmouse_movement
)))
866 /* Set before_command_echo_length to the value that would
867 have been saved before the start of this subcommand in
868 command_loop_1, if we had already been echoing then. */
869 if (this_command_key_count
== this_single_command_key_start
)
870 before_command_echo_length
= echo_length ();
872 /* Put a dash at the end to invite the user to type more. */
877 message3_nolog (current_kboard
->echo_string
,
878 SBYTES (current_kboard
->echo_string
),
879 STRING_MULTIBYTE (current_kboard
->echo_string
));
882 /* Record in what buffer we echoed, and from which kboard. */
883 echo_message_buffer
= echo_area_buffer
[0];
884 echo_kboard
= current_kboard
;
886 if (waiting_for_input
&& !NILP (Vquit_flag
))
887 quit_throw_to_read_char ();
890 /* Turn off echoing, for the start of a new command. */
895 current_kboard
->immediate_echo
= 0;
896 current_kboard
->echo_after_prompt
= -1;
897 current_kboard
->echo_string
= Qnil
;
898 ok_to_echo_at_next_pause
= NULL
;
900 echo_message_buffer
= Qnil
;
903 /* Return the length of the current echo string. */
908 return (STRINGP (current_kboard
->echo_string
)
909 ? SCHARS (current_kboard
->echo_string
)
913 /* Truncate the current echo message to its first LEN chars.
914 This and echo_char get used by read_key_sequence when the user
915 switches frames while entering a key sequence. */
918 echo_truncate (nchars
)
921 if (STRINGP (current_kboard
->echo_string
))
922 current_kboard
->echo_string
923 = Fsubstring (current_kboard
->echo_string
,
924 make_number (0), make_number (nchars
));
925 truncate_echo_area (nchars
);
929 /* Functions for manipulating this_command_keys. */
931 add_command_key (key
)
934 #if 0 /* Not needed after we made Freset_this_command_lengths
935 do the job immediately. */
936 /* If reset-this-command-length was called recently, obey it now.
937 See the doc string of that function for an explanation of why. */
938 if (before_command_restore_flag
)
940 this_command_key_count
= before_command_key_count_1
;
941 if (this_command_key_count
< this_single_command_key_start
)
942 this_single_command_key_start
= this_command_key_count
;
943 echo_truncate (before_command_echo_length_1
);
944 before_command_restore_flag
= 0;
948 if (this_command_key_count
>= ASIZE (this_command_keys
))
949 this_command_keys
= larger_vector (this_command_keys
,
950 2 * ASIZE (this_command_keys
),
953 AREF (this_command_keys
, this_command_key_count
) = key
;
954 ++this_command_key_count
;
961 int count
= SPECPDL_INDEX ();
964 if (command_loop_level
> 0)
966 specbind (Qstandard_output
, Qt
);
967 specbind (Qstandard_input
, Qt
);
970 #ifdef HAVE_X_WINDOWS
971 /* The command loop has started an hourglass timer, so we have to
972 cancel it here, otherwise it will fire because the recursive edit
973 can take some time. Do not check for display_hourglass_p here,
974 because it could already be nil. */
978 /* This function may have been called from a debugger called from
979 within redisplay, for instance by Edebugging a function called
980 from fontification-functions. We want to allow redisplay in
981 the debugging session.
983 The recursive edit is left with a `(throw exit ...)'. The `exit'
984 tag is not caught anywhere in redisplay, i.e. when we leave the
985 recursive edit, the original redisplay leading to the recursive
986 edit will be unwound. The outcome should therefore be safe. */
987 specbind (Qinhibit_redisplay
, Qnil
);
990 val
= command_loop ();
992 Fsignal (Qquit
, Qnil
);
993 /* Handle throw from read_minibuf when using minibuffer
994 while it's active but we're in another window. */
996 Fsignal (Qerror
, Fcons (val
, Qnil
));
998 return unbind_to (count
, Qnil
);
1001 /* When an auto-save happens, record the "time", and don't do again soon. */
1006 last_auto_save
= num_nonmacro_input_events
;
1009 /* Make an auto save happen as soon as possible at command level. */
1012 force_auto_save_soon ()
1014 last_auto_save
= - auto_save_interval
- 1;
1016 record_asynch_buffer_change ();
1019 DEFUN ("recursive-edit", Frecursive_edit
, Srecursive_edit
, 0, 0, "",
1020 doc
: /* Invoke the editor command loop recursively.
1021 To get out of the recursive edit, a command can do `(throw 'exit nil)';
1022 that tells this function to return.
1023 Alternatively, `(throw 'exit t)' makes this function signal an error.
1024 This function is called by the editor initialization to begin editing. */)
1027 int count
= SPECPDL_INDEX ();
1030 /* If we enter while input is blocked, don't lock up here.
1031 This may happen through the debugger during redisplay. */
1032 if (INPUT_BLOCKED_P
)
1035 command_loop_level
++;
1036 update_mode_lines
= 1;
1038 if (command_loop_level
1039 && current_buffer
!= XBUFFER (XWINDOW (selected_window
)->buffer
))
1040 buffer
= Fcurrent_buffer ();
1044 /* If we leave recursive_edit_1 below with a `throw' for instance,
1045 like it is done in the splash screen display, we have to
1046 make sure that we restore single_kboard as command_loop_1
1047 would have done if it were left normally. */
1048 record_unwind_protect (recursive_edit_unwind
,
1049 Fcons (buffer
, single_kboard
? Qt
: Qnil
));
1051 recursive_edit_1 ();
1052 return unbind_to (count
, Qnil
);
1056 recursive_edit_unwind (info
)
1059 if (BUFFERP (XCAR (info
)))
1060 Fset_buffer (XCAR (info
));
1062 if (NILP (XCDR (info
)))
1063 any_kboard_state ();
1065 single_kboard_state ();
1067 command_loop_level
--;
1068 update_mode_lines
= 1;
1077 #if 0 /* Theory: if there's anything in Vunread_command_events,
1078 it will right away be read by read_key_sequence,
1079 and then if we do switch KBOARDS, it will go into the side
1080 queue then. So we don't need to do anything special here -- rms. */
1081 if (CONSP (Vunread_command_events
))
1083 current_kboard
->kbd_queue
1084 = nconc2 (Vunread_command_events
, current_kboard
->kbd_queue
);
1085 current_kboard
->kbd_queue_has_data
= 1;
1087 Vunread_command_events
= Qnil
;
1093 /* Switch to the single-kboard state, making current_kboard
1094 the only KBOARD from which further input is accepted. */
1097 single_kboard_state ()
1104 /* If we're in single_kboard state for kboard KBOARD,
1108 not_single_kboard_state (kboard
)
1112 if (kboard
== current_kboard
)
1117 /* Maintain a stack of kboards, so other parts of Emacs
1118 can switch temporarily to the kboard of a given frame
1119 and then revert to the previous status. */
1124 struct kboard_stack
*next
;
1127 static struct kboard_stack
*kboard_stack
;
1130 push_frame_kboard (f
)
1134 struct kboard_stack
*p
1135 = (struct kboard_stack
*) xmalloc (sizeof (struct kboard_stack
));
1137 p
->next
= kboard_stack
;
1138 p
->kboard
= current_kboard
;
1141 current_kboard
= FRAME_KBOARD (f
);
1149 struct kboard_stack
*p
= kboard_stack
;
1150 current_kboard
= p
->kboard
;
1151 kboard_stack
= p
->next
;
1156 /* Handle errors that are not handled at inner levels
1157 by printing an error message and returning to the editor command loop. */
1163 Lisp_Object old_level
, old_length
;
1164 char macroerror
[50];
1166 #ifdef HAVE_X_WINDOWS
1167 if (display_hourglass_p
)
1168 cancel_hourglass ();
1171 if (!NILP (executing_kbd_macro
))
1173 if (executing_kbd_macro_iterations
== 1)
1174 sprintf (macroerror
, "After 1 kbd macro iteration: ");
1176 sprintf (macroerror
, "After %d kbd macro iterations: ",
1177 executing_kbd_macro_iterations
);
1182 Vstandard_output
= Qt
;
1183 Vstandard_input
= Qt
;
1184 Vexecuting_kbd_macro
= Qnil
;
1185 executing_kbd_macro
= Qnil
;
1186 current_kboard
->Vprefix_arg
= Qnil
;
1187 current_kboard
->Vlast_prefix_arg
= Qnil
;
1190 /* Avoid unquittable loop if data contains a circular list. */
1191 old_level
= Vprint_level
;
1192 old_length
= Vprint_length
;
1193 XSETFASTINT (Vprint_level
, 10);
1194 XSETFASTINT (Vprint_length
, 10);
1195 cmd_error_internal (data
, macroerror
);
1196 Vprint_level
= old_level
;
1197 Vprint_length
= old_length
;
1201 Vinhibit_quit
= Qnil
;
1203 if (command_loop_level
== 0 && minibuf_level
== 0)
1204 any_kboard_state ();
1207 return make_number (0);
1210 /* Take actions on handling an error. DATA is the data that describes
1213 CONTEXT is a C-string containing ASCII characters only which
1214 describes the context in which the error happened. If we need to
1215 generalize CONTEXT to allow multibyte characters, make it a Lisp
1219 cmd_error_internal (data
, context
)
1224 int kill_emacs_p
= 0;
1225 struct frame
*sf
= SELECTED_FRAME ();
1229 clear_message (1, 0);
1231 /* If the window system or terminal frame hasn't been initialized
1232 yet, or we're not interactive, it's best to dump this message out
1233 to stderr and exit. */
1234 if (!sf
->glyphs_initialized_p
1235 /* This is the case of the frame dumped with Emacs, when we're
1236 running under a window system. */
1237 || (!NILP (Vwindow_system
)
1238 && !inhibit_window_system
1239 && FRAME_TERMCAP_P (sf
))
1242 stream
= Qexternal_debugging_output
;
1248 message_log_maybe_newline ();
1253 /* The immediate context is not interesting for Quits,
1254 since they are asyncronous. */
1255 if (EQ (XCAR (data
), Qquit
))
1256 Vsignaling_function
= Qnil
;
1258 print_error_message (data
, stream
, context
, Vsignaling_function
);
1260 Vsignaling_function
= Qnil
;
1262 /* If the window system or terminal frame hasn't been initialized
1263 yet, or we're in -batch mode, this error should cause Emacs to exit. */
1267 Fkill_emacs (make_number (-1));
1271 Lisp_Object
command_loop_1 ();
1272 Lisp_Object
command_loop_2 ();
1273 Lisp_Object
top_level_1 ();
1275 /* Entry to editor-command-loop.
1276 This level has the catches for exiting/returning to editor command loop.
1277 It returns nil to exit recursive edit, t to abort it. */
1282 if (command_loop_level
> 0 || minibuf_level
> 0)
1285 val
= internal_catch (Qexit
, command_loop_2
, Qnil
);
1286 executing_kbd_macro
= Qnil
;
1292 internal_catch (Qtop_level
, top_level_1
, Qnil
);
1293 /* Reset single_kboard in case top-level set it while
1294 evaluating an -f option, or we are stuck there for some
1296 any_kboard_state ();
1297 internal_catch (Qtop_level
, command_loop_2
, Qnil
);
1298 executing_kbd_macro
= Qnil
;
1300 /* End of file in -batch run causes exit here. */
1306 /* Here we catch errors in execution of commands within the
1307 editing loop, and reenter the editing loop.
1308 When there is an error, cmd_error runs and returns a non-nil
1309 value to us. A value of nil means that command_loop_1 itself
1310 returned due to end of file (or end of kbd macro). */
1315 register Lisp_Object val
;
1318 val
= internal_condition_case (command_loop_1
, Qerror
, cmd_error
);
1319 while (!NILP (val
));
1327 return Feval (Vtop_level
);
1333 /* On entry to the outer level, run the startup file */
1334 if (!NILP (Vtop_level
))
1335 internal_condition_case (top_level_2
, Qerror
, cmd_error
);
1336 else if (!NILP (Vpurify_flag
))
1337 message ("Bare impure Emacs (standard Lisp code not loaded)");
1339 message ("Bare Emacs (standard Lisp code not loaded)");
1343 DEFUN ("top-level", Ftop_level
, Stop_level
, 0, 0, "",
1344 doc
: /* Exit all recursive editing levels. */)
1347 #ifdef HAVE_X_WINDOWS
1348 if (display_hourglass_p
)
1349 cancel_hourglass ();
1352 /* Unblock input if we enter with input blocked. This may happen if
1353 redisplay traps e.g. during tool-bar update with input blocked. */
1354 while (INPUT_BLOCKED_P
)
1357 return Fthrow (Qtop_level
, Qnil
);
1360 DEFUN ("exit-recursive-edit", Fexit_recursive_edit
, Sexit_recursive_edit
, 0, 0, "",
1361 doc
: /* Exit from the innermost recursive edit or minibuffer. */)
1364 if (command_loop_level
> 0 || minibuf_level
> 0)
1365 Fthrow (Qexit
, Qnil
);
1367 error ("No recursive edit is in progress");
1371 DEFUN ("abort-recursive-edit", Fabort_recursive_edit
, Sabort_recursive_edit
, 0, 0, "",
1372 doc
: /* Abort the command that requested this recursive edit or minibuffer input. */)
1375 if (command_loop_level
> 0 || minibuf_level
> 0)
1378 error ("No recursive edit is in progress");
1382 /* This is the actual command reading loop,
1383 sans error-handling encapsulation. */
1385 static int read_key_sequence
P_ ((Lisp_Object
*, int, Lisp_Object
,
1387 void safe_run_hooks
P_ ((Lisp_Object
));
1388 static void adjust_point_for_property
P_ ((int, int));
1390 /* Cancel hourglass from protect_unwind.
1392 #ifdef HAVE_X_WINDOWS
1394 cancel_hourglass_unwind (arg
)
1397 cancel_hourglass ();
1408 Lisp_Object keybuf
[30];
1412 struct buffer
*prev_buffer
= NULL
;
1414 int was_locked
= single_kboard
;
1416 int already_adjusted
;
1418 current_kboard
->Vprefix_arg
= Qnil
;
1419 current_kboard
->Vlast_prefix_arg
= Qnil
;
1420 Vdeactivate_mark
= Qnil
;
1421 waiting_for_input
= 0;
1425 this_command_key_count
= 0;
1426 this_command_key_count_reset
= 0;
1427 this_single_command_key_start
= 0;
1429 if (NILP (Vmemory_full
))
1431 /* Make sure this hook runs after commands that get errors and
1432 throw to top level. */
1433 /* Note that the value cell will never directly contain nil
1434 if the symbol is a local variable. */
1435 if (!NILP (Vpost_command_hook
) && !NILP (Vrun_hooks
))
1436 safe_run_hooks (Qpost_command_hook
);
1438 /* If displaying a message, resize the echo area window to fit
1439 that message's size exactly. */
1440 if (!NILP (echo_area_buffer
[0]))
1441 resize_echo_area_exactly ();
1443 if (!NILP (Vdeferred_action_list
))
1444 safe_run_hooks (Qdeferred_action_function
);
1447 /* Do this after running Vpost_command_hook, for consistency. */
1448 current_kboard
->Vlast_command
= Vthis_command
;
1449 current_kboard
->Vreal_last_command
= real_this_command
;
1453 if (! FRAME_LIVE_P (XFRAME (selected_frame
)))
1456 /* Make sure the current window's buffer is selected. */
1457 if (XBUFFER (XWINDOW (selected_window
)->buffer
) != current_buffer
)
1458 set_buffer_internal (XBUFFER (XWINDOW (selected_window
)->buffer
));
1460 /* Display any malloc warning that just came out. Use while because
1461 displaying one warning can cause another. */
1463 while (pending_malloc_warning
)
1464 display_malloc_warning ();
1468 Vdeactivate_mark
= Qnil
;
1470 /* If minibuffer on and echo area in use,
1471 wait a short time and redraw minibuffer. */
1474 && !NILP (echo_area_buffer
[0])
1475 && EQ (minibuf_window
, echo_area_window
)
1476 && NUMBERP (Vminibuffer_message_timeout
))
1478 /* Bind inhibit-quit to t so that C-g gets read in
1479 rather than quitting back to the minibuffer. */
1480 int count
= SPECPDL_INDEX ();
1481 specbind (Qinhibit_quit
, Qt
);
1483 Fsit_for (Vminibuffer_message_timeout
, Qnil
, Qnil
);
1484 /* Clear the echo area. */
1486 safe_run_hooks (Qecho_area_clear_hook
);
1488 unbind_to (count
, Qnil
);
1490 /* If a C-g came in before, treat it as input now. */
1491 if (!NILP (Vquit_flag
))
1494 Vunread_command_events
= Fcons (make_number (quit_char
), Qnil
);
1499 alloca (0); /* Cause a garbage collection now */
1500 /* Since we can free the most stuff here. */
1501 #endif /* C_ALLOCA */
1504 /* Select the frame that the last event came from. Usually,
1505 switch-frame events will take care of this, but if some lisp
1506 code swallows a switch-frame event, we'll fix things up here.
1507 Is this a good idea? */
1508 if (FRAMEP (internal_last_event_frame
)
1509 && !EQ (internal_last_event_frame
, selected_frame
))
1510 Fselect_frame (internal_last_event_frame
);
1512 /* If it has changed current-menubar from previous value,
1513 really recompute the menubar from the value. */
1514 if (! NILP (Vlucid_menu_bar_dirty_flag
)
1515 && !NILP (Ffboundp (Qrecompute_lucid_menubar
)))
1516 call0 (Qrecompute_lucid_menubar
);
1518 before_command_key_count
= this_command_key_count
;
1519 before_command_echo_length
= echo_length ();
1521 Vthis_command
= Qnil
;
1522 real_this_command
= Qnil
;
1523 Vthis_original_command
= Qnil
;
1525 /* Read next key sequence; i gets its length. */
1526 i
= read_key_sequence (keybuf
, sizeof keybuf
/ sizeof keybuf
[0],
1529 /* A filter may have run while we were reading the input. */
1530 if (! FRAME_LIVE_P (XFRAME (selected_frame
)))
1532 if (XBUFFER (XWINDOW (selected_window
)->buffer
) != current_buffer
)
1533 set_buffer_internal (XBUFFER (XWINDOW (selected_window
)->buffer
));
1537 /* Now we have read a key sequence of length I,
1538 or else I is 0 and we found end of file. */
1540 if (i
== 0) /* End of file -- happens only in */
1541 return Qnil
; /* a kbd macro, at the end. */
1542 /* -1 means read_key_sequence got a menu that was rejected.
1543 Just loop around and read another command. */
1547 this_command_key_count
= 0;
1548 this_command_key_count_reset
= 0;
1549 this_single_command_key_start
= 0;
1553 last_command_char
= keybuf
[i
- 1];
1555 /* If the previous command tried to force a specific window-start,
1556 forget about that, in case this command moves point far away
1557 from that position. But also throw away beg_unchanged and
1558 end_unchanged information in that case, so that redisplay will
1559 update the whole window properly. */
1560 if (!NILP (XWINDOW (selected_window
)->force_start
))
1563 XWINDOW (selected_window
)->force_start
= Qnil
;
1564 b
= XBUFFER (XWINDOW (selected_window
)->buffer
);
1565 BUF_BEG_UNCHANGED (b
) = BUF_END_UNCHANGED (b
) = 0;
1568 cmd
= read_key_sequence_cmd
;
1569 if (!NILP (Vexecuting_kbd_macro
))
1571 if (!NILP (Vquit_flag
))
1573 Vexecuting_kbd_macro
= Qt
;
1574 QUIT
; /* Make some noise. */
1575 /* Will return since macro now empty. */
1579 /* Do redisplay processing after this command except in special
1580 cases identified below. */
1581 prev_buffer
= current_buffer
;
1582 prev_modiff
= MODIFF
;
1583 last_point_position
= PT
;
1584 XSETBUFFER (last_point_position_buffer
, prev_buffer
);
1586 /* By default, we adjust point to a boundary of a region that
1587 has such a property that should be treated intangible
1588 (e.g. composition, display). But, some commands will set
1589 this variable differently. */
1590 Vdisable_point_adjustment
= Qnil
;
1592 /* Process filters and timers may have messed with deactivate-mark.
1593 reset it before we execute the command. */
1594 Vdeactivate_mark
= Qnil
;
1596 /* Remap command through active keymaps */
1597 Vthis_original_command
= cmd
;
1601 if (cmd1
= Fcommand_remapping (cmd
), !NILP (cmd1
))
1605 /* Execute the command. */
1607 Vthis_command
= cmd
;
1608 real_this_command
= cmd
;
1609 /* Note that the value cell will never directly contain nil
1610 if the symbol is a local variable. */
1611 if (!NILP (Vpre_command_hook
) && !NILP (Vrun_hooks
))
1612 safe_run_hooks (Qpre_command_hook
);
1614 already_adjusted
= 0;
1616 if (NILP (Vthis_command
))
1618 /* nil means key is undefined. */
1619 Lisp_Object keys
= Fvector (i
, keybuf
);
1620 keys
= Fkey_description (keys
, Qnil
);
1622 message_with_string ("%s is undefined", keys
, 0);
1623 current_kboard
->defining_kbd_macro
= Qnil
;
1624 update_mode_lines
= 1;
1625 current_kboard
->Vprefix_arg
= Qnil
;
1629 if (NILP (current_kboard
->Vprefix_arg
) && ! no_direct
)
1631 /* In case we jump to directly_done. */
1632 Vcurrent_prefix_arg
= current_kboard
->Vprefix_arg
;
1634 /* Recognize some common commands in common situations and
1635 do them directly. */
1636 if (EQ (Vthis_command
, Qforward_char
) && PT
< ZV
)
1638 struct Lisp_Char_Table
*dp
1639 = window_display_table (XWINDOW (selected_window
));
1640 lose
= FETCH_CHAR (PT_BYTE
);
1642 if (! NILP (Vpost_command_hook
))
1643 /* Put this before calling adjust_point_for_property
1644 so it will only get called once in any case. */
1646 if (current_buffer
== prev_buffer
1647 && last_point_position
!= PT
1648 && NILP (Vdisable_point_adjustment
)
1649 && NILP (Vglobal_disable_point_adjustment
))
1650 adjust_point_for_property (last_point_position
, 0);
1651 already_adjusted
= 1;
1652 if (PT
== last_point_position
+ 1
1654 ? (VECTORP (DISP_CHAR_VECTOR (dp
, lose
))
1655 ? XVECTOR (DISP_CHAR_VECTOR (dp
, lose
))->size
== 1
1656 : (NILP (DISP_CHAR_VECTOR (dp
, lose
))
1657 && (lose
>= 0x20 && lose
< 0x7f)))
1658 : (lose
>= 0x20 && lose
< 0x7f))
1659 /* To extract the case of continuation on
1660 wide-column characters. */
1661 && (WIDTH_BY_CHAR_HEAD (FETCH_BYTE (PT_BYTE
)) == 1)
1662 && (XFASTINT (XWINDOW (selected_window
)->last_modified
)
1664 && (XFASTINT (XWINDOW (selected_window
)->last_overlay_modified
)
1666 && (XFASTINT (XWINDOW (selected_window
)->last_point
)
1668 && !windows_or_buffers_changed
1669 && EQ (current_buffer
->selective_display
, Qnil
)
1670 && !detect_input_pending ()
1671 && NILP (XWINDOW (selected_window
)->column_number_displayed
)
1672 && NILP (Vexecuting_kbd_macro
))
1673 direct_output_forward_char (1);
1676 else if (EQ (Vthis_command
, Qbackward_char
) && PT
> BEGV
)
1678 struct Lisp_Char_Table
*dp
1679 = window_display_table (XWINDOW (selected_window
));
1681 lose
= FETCH_CHAR (PT_BYTE
);
1682 if (! NILP (Vpost_command_hook
))
1684 if (current_buffer
== prev_buffer
1685 && last_point_position
!= PT
1686 && NILP (Vdisable_point_adjustment
)
1687 && NILP (Vglobal_disable_point_adjustment
))
1688 adjust_point_for_property (last_point_position
, 0);
1689 already_adjusted
= 1;
1690 if (PT
== last_point_position
- 1
1692 ? (VECTORP (DISP_CHAR_VECTOR (dp
, lose
))
1693 ? XVECTOR (DISP_CHAR_VECTOR (dp
, lose
))->size
== 1
1694 : (NILP (DISP_CHAR_VECTOR (dp
, lose
))
1695 && (lose
>= 0x20 && lose
< 0x7f)))
1696 : (lose
>= 0x20 && lose
< 0x7f))
1697 && (XFASTINT (XWINDOW (selected_window
)->last_modified
)
1699 && (XFASTINT (XWINDOW (selected_window
)->last_overlay_modified
)
1701 && (XFASTINT (XWINDOW (selected_window
)->last_point
)
1703 && !windows_or_buffers_changed
1704 && EQ (current_buffer
->selective_display
, Qnil
)
1705 && !detect_input_pending ()
1706 && NILP (XWINDOW (selected_window
)->column_number_displayed
)
1707 && NILP (Vexecuting_kbd_macro
))
1708 direct_output_forward_char (-1);
1711 else if (EQ (Vthis_command
, Qself_insert_command
)
1712 /* Try this optimization only on char keystrokes. */
1713 && NATNUMP (last_command_char
)
1714 && CHAR_VALID_P (XFASTINT (last_command_char
), 0))
1717 = translate_char (Vtranslation_table_for_input
,
1718 XFASTINT (last_command_char
), 0, 0, 0);
1720 if (NILP (Vexecuting_kbd_macro
)
1721 && !EQ (minibuf_window
, selected_window
))
1723 if (!nonundocount
|| nonundocount
>= 20)
1731 lose
= ((XFASTINT (XWINDOW (selected_window
)->last_modified
)
1733 || (XFASTINT (XWINDOW (selected_window
)->last_overlay_modified
)
1735 || (XFASTINT (XWINDOW (selected_window
)->last_point
)
1737 || MODIFF
<= SAVE_MODIFF
1738 || windows_or_buffers_changed
1739 || !EQ (current_buffer
->selective_display
, Qnil
)
1740 || detect_input_pending ()
1741 || !NILP (XWINDOW (selected_window
)->column_number_displayed
)
1742 || !NILP (Vexecuting_kbd_macro
));
1744 value
= internal_self_insert (c
, 0);
1749 if (! NILP (Vpost_command_hook
))
1750 /* Put this before calling adjust_point_for_property
1751 so it will only get called once in any case. */
1754 /* VALUE == 1 when AFTER-CHANGE functions are
1755 installed which is the case most of the time
1756 because FONT-LOCK installs one. */
1757 if (!lose
&& !value
)
1758 direct_output_for_insert (c
);
1763 /* Here for a command that isn't executed directly */
1766 #ifdef HAVE_X_WINDOWS
1767 int scount
= SPECPDL_INDEX ();
1769 if (display_hourglass_p
1770 && NILP (Vexecuting_kbd_macro
))
1772 record_unwind_protect (cancel_hourglass_unwind
, Qnil
);
1778 if (NILP (current_kboard
->Vprefix_arg
))
1780 Fcommand_execute (Vthis_command
, Qnil
, Qnil
, Qnil
);
1782 #ifdef HAVE_X_WINDOWS
1783 /* Do not check display_hourglass_p here, because
1784 Fcommand_execute could change it, but we should cancel
1785 hourglass cursor anyway.
1786 But don't cancel the hourglass within a macro
1787 just because a command in the macro finishes. */
1788 if (NILP (Vexecuting_kbd_macro
))
1789 unbind_to (scount
, Qnil
);
1794 current_kboard
->Vlast_prefix_arg
= Vcurrent_prefix_arg
;
1796 /* Note that the value cell will never directly contain nil
1797 if the symbol is a local variable. */
1798 if (!NILP (Vpost_command_hook
) && !NILP (Vrun_hooks
))
1799 safe_run_hooks (Qpost_command_hook
);
1801 /* If displaying a message, resize the echo area window to fit
1802 that message's size exactly. */
1803 if (!NILP (echo_area_buffer
[0]))
1804 resize_echo_area_exactly ();
1806 if (!NILP (Vdeferred_action_list
))
1807 safe_run_hooks (Qdeferred_action_function
);
1809 /* If there is a prefix argument,
1810 1) We don't want Vlast_command to be ``universal-argument''
1811 (that would be dumb), so don't set Vlast_command,
1812 2) we want to leave echoing on so that the prefix will be
1813 echoed as part of this key sequence, so don't call
1815 3) we want to leave this_command_key_count non-zero, so that
1816 read_char will realize that it is re-reading a character, and
1817 not echo it a second time.
1819 If the command didn't actually create a prefix arg,
1820 but is merely a frame event that is transparent to prefix args,
1821 then the above doesn't apply. */
1822 if (NILP (current_kboard
->Vprefix_arg
) || CONSP (last_command_char
))
1824 current_kboard
->Vlast_command
= Vthis_command
;
1825 current_kboard
->Vreal_last_command
= real_this_command
;
1827 this_command_key_count
= 0;
1828 this_command_key_count_reset
= 0;
1829 this_single_command_key_start
= 0;
1832 if (!NILP (current_buffer
->mark_active
) && !NILP (Vrun_hooks
))
1834 /* Setting transient-mark-mode to `only' is a way of
1835 turning it on for just one command. */
1837 if (EQ (Vtransient_mark_mode
, Qidentity
))
1838 Vtransient_mark_mode
= Qnil
;
1839 if (EQ (Vtransient_mark_mode
, Qonly
))
1840 Vtransient_mark_mode
= Qidentity
;
1842 if (!NILP (Vdeactivate_mark
) && !NILP (Vtransient_mark_mode
))
1844 /* We could also call `deactivate'mark'. */
1845 if (EQ (Vtransient_mark_mode
, Qlambda
))
1846 Vtransient_mark_mode
= Qnil
;
1849 current_buffer
->mark_active
= Qnil
;
1850 call1 (Vrun_hooks
, intern ("deactivate-mark-hook"));
1853 else if (current_buffer
!= prev_buffer
|| MODIFF
!= prev_modiff
)
1854 call1 (Vrun_hooks
, intern ("activate-mark-hook"));
1859 if (current_buffer
== prev_buffer
1860 && last_point_position
!= PT
1861 && NILP (Vdisable_point_adjustment
)
1862 && NILP (Vglobal_disable_point_adjustment
)
1863 && !already_adjusted
)
1864 adjust_point_for_property (last_point_position
, MODIFF
!= prev_modiff
);
1866 /* Install chars successfully executed in kbd macro. */
1868 if (!NILP (current_kboard
->defining_kbd_macro
)
1869 && NILP (current_kboard
->Vprefix_arg
))
1870 finalize_kbd_macro_chars ();
1874 any_kboard_state ();
1879 extern Lisp_Object Qcomposition
, Qdisplay
;
1881 /* Adjust point to a boundary of a region that has such a property
1882 that should be treated intangible. For the moment, we check
1883 `composition', `display' and `invisible' properties.
1884 LAST_PT is the last position of point. */
1886 extern Lisp_Object Qafter_string
, Qbefore_string
;
1887 extern Lisp_Object get_pos_property
P_ ((Lisp_Object
, Lisp_Object
, Lisp_Object
));
1890 adjust_point_for_property (last_pt
, modified
)
1895 Lisp_Object val
, overlay
, tmp
;
1896 int check_composition
= 1, check_display
= 1, check_invisible
= 1;
1899 /* FIXME: cycling is probably not necessary because these properties
1900 can't be usefully combined anyway. */
1901 while (check_composition
|| check_display
|| check_invisible
)
1903 if (check_composition
1904 && PT
> BEGV
&& PT
< ZV
1905 && get_property_and_range (PT
, Qcomposition
, &val
, &beg
, &end
, Qnil
)
1906 && COMPOSITION_VALID_P (beg
, end
, val
)
1907 && beg
< PT
/* && end > PT <- It's always the case. */
1908 && (last_pt
<= beg
|| last_pt
>= end
))
1911 SET_PT (PT
< last_pt
? beg
: end
);
1912 check_display
= check_invisible
= 1;
1914 check_composition
= 0;
1916 && PT
> BEGV
&& PT
< ZV
1917 && !NILP (val
= get_char_property_and_overlay
1918 (make_number (PT
), Qdisplay
, Qnil
, &overlay
))
1919 && display_prop_intangible_p (val
)
1920 && (!OVERLAYP (overlay
)
1921 ? get_property_and_range (PT
, Qdisplay
, &val
, &beg
, &end
, Qnil
)
1922 : (beg
= OVERLAY_POSITION (OVERLAY_START (overlay
)),
1923 end
= OVERLAY_POSITION (OVERLAY_END (overlay
))))
1924 && (beg
< PT
/* && end > PT <- It's always the case. */
1925 || (beg
<= PT
&& STRINGP (val
) && SCHARS (val
) == 0)))
1928 SET_PT (PT
< last_pt
1929 ? (STRINGP (val
) && SCHARS (val
) == 0 ? beg
- 1 : beg
)
1931 check_composition
= check_invisible
= 1;
1934 if (check_invisible
&& PT
> BEGV
&& PT
< ZV
)
1936 int inv
, ellipsis
= 0;
1939 /* Find boundaries `beg' and `end' of the invisible area, if any. */
1941 && !NILP (val
= get_char_property_and_overlay
1942 (make_number (end
), Qinvisible
, Qnil
, &overlay
))
1943 && (inv
= TEXT_PROP_MEANS_INVISIBLE (val
)))
1945 ellipsis
= ellipsis
|| inv
> 1
1946 || (OVERLAYP (overlay
)
1947 && (!NILP (Foverlay_get (overlay
, Qafter_string
))
1948 || !NILP (Foverlay_get (overlay
, Qbefore_string
))));
1949 tmp
= Fnext_single_char_property_change
1950 (make_number (end
), Qinvisible
, Qnil
, Qnil
);
1951 end
= NATNUMP (tmp
) ? XFASTINT (tmp
) : ZV
;
1954 && !NILP (val
= get_char_property_and_overlay
1955 (make_number (beg
- 1), Qinvisible
, Qnil
, &overlay
))
1956 && (inv
= TEXT_PROP_MEANS_INVISIBLE (val
)))
1958 ellipsis
= ellipsis
|| inv
> 1
1959 || (OVERLAYP (overlay
)
1960 && (!NILP (Foverlay_get (overlay
, Qafter_string
))
1961 || !NILP (Foverlay_get (overlay
, Qbefore_string
))));
1962 tmp
= Fprevious_single_char_property_change
1963 (make_number (beg
), Qinvisible
, Qnil
, Qnil
);
1964 beg
= NATNUMP (tmp
) ? XFASTINT (tmp
) : BEGV
;
1967 /* Move away from the inside area. */
1968 if (beg
< PT
&& end
> PT
)
1970 SET_PT ((orig_pt
== PT
&& (last_pt
< beg
|| last_pt
> end
))
1971 /* We haven't moved yet (so we don't need to fear
1972 infinite-looping) and we were outside the range
1973 before (so either end of the range still corresponds
1974 to a move in the right direction): pretend we moved
1975 less than we actually did, so that we still have
1976 more freedom below in choosing which end of the range
1978 ? (orig_pt
= -1, PT
< last_pt
? end
: beg
)
1979 /* We either have moved already or the last point
1980 was already in the range: we don't get to choose
1981 which end of the range we have to go to. */
1982 : (PT
< last_pt
? beg
: end
));
1983 check_composition
= check_display
= 1;
1985 #if 0 /* This assertion isn't correct, because SET_PT may end up setting
1986 the point to something other than its argument, due to
1987 point-motion hooks, intangibility, etc. */
1988 xassert (PT
== beg
|| PT
== end
);
1991 /* Pretend the area doesn't exist if the buffer is not
1993 if (!modified
&& !ellipsis
&& beg
< end
)
1995 if (last_pt
== beg
&& PT
== end
&& end
< ZV
)
1996 (check_composition
= check_display
= 1, SET_PT (end
+ 1));
1997 else if (last_pt
== end
&& PT
== beg
&& beg
> BEGV
)
1998 (check_composition
= check_display
= 1, SET_PT (beg
- 1));
1999 else if (PT
== ((PT
< last_pt
) ? beg
: end
))
2000 /* We've already moved as far as we can. Trying to go
2001 to the other end would mean moving backwards and thus
2002 could lead to an infinite loop. */
2004 else if (val
= get_pos_property (make_number (PT
),
2006 TEXT_PROP_MEANS_INVISIBLE (val
)
2007 && (val
= get_pos_property
2008 (make_number (PT
== beg
? end
: beg
),
2010 !TEXT_PROP_MEANS_INVISIBLE (val
)))
2011 (check_composition
= check_display
= 1,
2012 SET_PT (PT
== beg
? end
: beg
));
2015 check_invisible
= 0;
2019 /* Subroutine for safe_run_hooks: run the hook HOOK. */
2022 safe_run_hooks_1 (hook
)
2025 return call1 (Vrun_hooks
, Vinhibit_quit
);
2028 /* Subroutine for safe_run_hooks: handle an error by clearing out the hook. */
2031 safe_run_hooks_error (data
)
2034 Lisp_Object args
[3];
2035 args
[0] = build_string ("Error in %s: %s");
2036 args
[1] = Vinhibit_quit
;
2039 return Fset (Vinhibit_quit
, Qnil
);
2042 /* If we get an error while running the hook, cause the hook variable
2043 to be nil. Also inhibit quits, so that C-g won't cause the hook
2044 to mysteriously evaporate. */
2047 safe_run_hooks (hook
)
2050 int count
= SPECPDL_INDEX ();
2051 specbind (Qinhibit_quit
, hook
);
2053 internal_condition_case (safe_run_hooks_1
, Qt
, safe_run_hooks_error
);
2055 unbind_to (count
, Qnil
);
2059 /* Number of seconds between polling for input. This is a Lisp
2060 variable that can be bound. */
2062 EMACS_INT polling_period
;
2064 /* Nonzero means polling for input is temporarily suppressed. */
2066 int poll_suppress_count
;
2068 /* Asynchronous timer for polling. */
2070 struct atimer
*poll_timer
;
2073 #ifdef POLL_FOR_INPUT
2075 /* Poll for input, so what we catch a C-g if it comes in. This
2076 function is called from x_make_frame_visible, see comment
2082 if (interrupt_input_blocked
== 0
2083 && !waiting_for_input
)
2084 read_avail_input (0);
2087 /* Timer callback function for poll_timer. TIMER is equal to
2091 poll_for_input (timer
)
2092 struct atimer
*timer
;
2094 if (poll_suppress_count
== 0)
2096 interrupt_input_pending
= 1;
2098 poll_for_input_1 ();
2102 #endif /* POLL_FOR_INPUT */
2104 /* Begin signals to poll for input, if they are appropriate.
2105 This function is called unconditionally from various places. */
2110 #ifdef POLL_FOR_INPUT
2111 if (read_socket_hook
&& !interrupt_input
)
2113 /* Turn alarm handling on unconditionally. It might have
2114 been turned off in process.c. */
2115 turn_on_atimers (1);
2117 /* If poll timer doesn't exist, are we need one with
2118 a different interval, start a new one. */
2119 if (poll_timer
== NULL
2120 || EMACS_SECS (poll_timer
->interval
) != polling_period
)
2122 EMACS_TIME interval
;
2125 cancel_atimer (poll_timer
);
2127 EMACS_SET_SECS_USECS (interval
, polling_period
, 0);
2128 poll_timer
= start_atimer (ATIMER_CONTINUOUS
, interval
,
2129 poll_for_input
, NULL
);
2132 /* Let the timer's callback function poll for input
2133 if this becomes zero. */
2134 --poll_suppress_count
;
2139 /* Nonzero if we are using polling to handle input asynchronously. */
2142 input_polling_used ()
2144 #ifdef POLL_FOR_INPUT
2145 return read_socket_hook
&& !interrupt_input
;
2151 /* Turn off polling. */
2156 #ifdef POLL_FOR_INPUT
2157 if (read_socket_hook
&& !interrupt_input
)
2158 ++poll_suppress_count
;
2162 /* Set the value of poll_suppress_count to COUNT
2163 and start or stop polling accordingly. */
2166 set_poll_suppress_count (count
)
2169 #ifdef POLL_FOR_INPUT
2170 if (count
== 0 && poll_suppress_count
!= 0)
2172 poll_suppress_count
= 1;
2175 else if (count
!= 0 && poll_suppress_count
== 0)
2179 poll_suppress_count
= count
;
2183 /* Bind polling_period to a value at least N.
2184 But don't decrease it. */
2187 bind_polling_period (n
)
2190 #ifdef POLL_FOR_INPUT
2191 int new = polling_period
;
2196 stop_other_atimers (poll_timer
);
2198 specbind (Qpolling_period
, make_number (new));
2199 /* Start a new alarm with the new period. */
2204 /* Apply the control modifier to CHARACTER. */
2210 /* Save the upper bits here. */
2211 int upper
= c
& ~0177;
2215 /* Everything in the columns containing the upper-case letters
2216 denotes a control character. */
2217 if (c
>= 0100 && c
< 0140)
2221 /* Set the shift modifier for a control char
2222 made from a shifted letter. But only for letters! */
2223 if (oc
>= 'A' && oc
<= 'Z')
2224 c
|= shift_modifier
;
2227 /* The lower-case letters denote control characters too. */
2228 else if (c
>= 'a' && c
<= 'z')
2231 /* Include the bits for control and shift
2232 only if the basic ASCII code can't indicate them. */
2236 /* Replace the high bits. */
2237 c
|= (upper
& ~ctrl_modifier
);
2242 /* Display the help-echo property of the character after the mouse pointer.
2243 Either show it in the echo area, or call show-help-function to display
2244 it by other means (maybe in a tooltip).
2246 If HELP is nil, that means clear the previous help echo.
2248 If HELP is a string, display that string. If HELP is a function,
2249 call it with OBJECT and POS as arguments; the function should
2250 return a help string or nil for none. For all other types of HELP,
2251 evaluate it to obtain a string.
2253 WINDOW is the window in which the help was generated, if any.
2254 It is nil if not in a window.
2256 If OBJECT is a buffer, POS is the position in the buffer where the
2257 `help-echo' text property was found.
2259 If OBJECT is an overlay, that overlay has a `help-echo' property,
2260 and POS is the position in the overlay's buffer under the mouse.
2262 If OBJECT is a string (an overlay string or a string displayed with
2263 the `display' property). POS is the position in that string under
2266 OK_TO_OVERWRITE_KEYSTROKE_ECHO non-zero means it's okay if the help
2267 echo overwrites a keystroke echo currently displayed in the echo
2270 Note: this function may only be called with HELP nil or a string
2271 from X code running asynchronously. */
2274 show_help_echo (help
, window
, object
, pos
, ok_to_overwrite_keystroke_echo
)
2275 Lisp_Object help
, window
, object
, pos
;
2276 int ok_to_overwrite_keystroke_echo
;
2278 if (!NILP (help
) && !STRINGP (help
))
2280 if (FUNCTIONP (help
))
2282 Lisp_Object args
[4];
2287 help
= safe_call (4, args
);
2290 help
= safe_eval (help
);
2292 if (!STRINGP (help
))
2297 if (!noninteractive
&& STRINGP (help
))
2298 help
= call1 (Qmouse_fixup_help_message
, help
);
2301 if (STRINGP (help
) || NILP (help
))
2303 if (!NILP (Vshow_help_function
))
2304 call1 (Vshow_help_function
, help
);
2305 else if (/* Don't overwrite minibuffer contents. */
2306 !MINI_WINDOW_P (XWINDOW (selected_window
))
2307 /* Don't overwrite a keystroke echo. */
2308 && (NILP (echo_message_buffer
)
2309 || ok_to_overwrite_keystroke_echo
)
2310 /* Don't overwrite a prompt. */
2311 && !cursor_in_echo_area
)
2315 int count
= SPECPDL_INDEX ();
2317 if (!help_echo_showing_p
)
2318 Vpre_help_message
= current_message ();
2320 specbind (Qmessage_truncate_lines
, Qt
);
2321 message3_nolog (help
, SBYTES (help
),
2322 STRING_MULTIBYTE (help
));
2323 unbind_to (count
, Qnil
);
2325 else if (STRINGP (Vpre_help_message
))
2327 message3_nolog (Vpre_help_message
,
2328 SBYTES (Vpre_help_message
),
2329 STRING_MULTIBYTE (Vpre_help_message
));
2330 Vpre_help_message
= Qnil
;
2336 help_echo_showing_p
= STRINGP (help
);
2342 /* Input of single characters from keyboard */
2344 Lisp_Object
print_help ();
2345 static Lisp_Object
kbd_buffer_get_event ();
2346 static void record_char ();
2349 static jmp_buf wrong_kboard_jmpbuf
;
2352 #define STOP_POLLING \
2353 do { if (! polling_stopped_here) stop_polling (); \
2354 polling_stopped_here = 1; } while (0)
2356 #define RESUME_POLLING \
2357 do { if (polling_stopped_here) start_polling (); \
2358 polling_stopped_here = 0; } while (0)
2360 /* read a character from the keyboard; call the redisplay if needed */
2361 /* commandflag 0 means do not do auto-saving, but do do redisplay.
2362 -1 means do not do redisplay, but do do autosaving.
2365 /* The arguments MAPS and NMAPS are for menu prompting.
2366 MAPS is an array of keymaps; NMAPS is the length of MAPS.
2368 PREV_EVENT is the previous input event, or nil if we are reading
2369 the first event of a key sequence (or not reading a key sequence).
2370 If PREV_EVENT is t, that is a "magic" value that says
2371 not to run input methods, but in other respects to act as if
2372 not reading a key sequence.
2374 If USED_MOUSE_MENU is non-null, then we set *USED_MOUSE_MENU to 1
2375 if we used a mouse menu to read the input, or zero otherwise. If
2376 USED_MOUSE_MENU is null, we don't dereference it.
2378 Value is t if we showed a menu and the user rejected it. */
2381 read_char (commandflag
, nmaps
, maps
, prev_event
, used_mouse_menu
)
2385 Lisp_Object prev_event
;
2386 int *used_mouse_menu
;
2388 volatile Lisp_Object c
;
2390 jmp_buf local_getcjmp
;
2392 volatile int key_already_recorded
= 0;
2393 Lisp_Object tem
, save
;
2394 volatile Lisp_Object previous_echo_area_message
;
2395 volatile Lisp_Object also_record
;
2396 volatile int reread
;
2397 struct gcpro gcpro1
, gcpro2
;
2398 int polling_stopped_here
= 0;
2402 #if 0 /* This was commented out as part of fixing echo for C-u left. */
2403 before_command_key_count
= this_command_key_count
;
2404 before_command_echo_length
= echo_length ();
2407 previous_echo_area_message
= Qnil
;
2409 GCPRO2 (c
, previous_echo_area_message
);
2414 if (CONSP (Vunread_post_input_method_events
))
2416 c
= XCAR (Vunread_post_input_method_events
);
2417 Vunread_post_input_method_events
2418 = XCDR (Vunread_post_input_method_events
);
2420 /* Undo what read_char_x_menu_prompt did when it unread
2421 additional keys returned by Fx_popup_menu. */
2423 && (SYMBOLP (XCAR (c
)) || INTEGERP (XCAR (c
)))
2431 if (unread_command_char
!= -1)
2433 XSETINT (c
, unread_command_char
);
2434 unread_command_char
= -1;
2440 if (CONSP (Vunread_command_events
))
2442 c
= XCAR (Vunread_command_events
);
2443 Vunread_command_events
= XCDR (Vunread_command_events
);
2445 /* Undo what read_char_x_menu_prompt did when it unread
2446 additional keys returned by Fx_popup_menu. */
2448 && EQ (XCDR (c
), Qdisabled
)
2449 && (SYMBOLP (XCAR (c
)) || INTEGERP (XCAR (c
))))
2452 /* If the queued event is something that used the mouse,
2453 set used_mouse_menu accordingly. */
2455 && (EQ (c
, Qtool_bar
) || EQ (c
, Qmenu_bar
)))
2456 *used_mouse_menu
= 1;
2459 goto reread_for_input_method
;
2462 if (CONSP (Vunread_input_method_events
))
2464 c
= XCAR (Vunread_input_method_events
);
2465 Vunread_input_method_events
= XCDR (Vunread_input_method_events
);
2467 /* Undo what read_char_x_menu_prompt did when it unread
2468 additional keys returned by Fx_popup_menu. */
2470 && (SYMBOLP (XCAR (c
)) || INTEGERP (XCAR (c
)))
2474 goto reread_for_input_method
;
2477 this_command_key_count_reset
= 0;
2479 if (!NILP (Vexecuting_kbd_macro
))
2481 /* We set this to Qmacro; since that's not a frame, nobody will
2482 try to switch frames on us, and the selected window will
2485 Since this event came from a macro, it would be misleading to
2486 leave internal_last_event_frame set to wherever the last
2487 real event came from. Normally, a switch-frame event selects
2488 internal_last_event_frame after each command is read, but
2489 events read from a macro should never cause a new frame to be
2491 Vlast_event_frame
= internal_last_event_frame
= Qmacro
;
2493 /* Exit the macro if we are at the end.
2494 Also, some things replace the macro with t
2495 to force an early exit. */
2496 if (EQ (Vexecuting_kbd_macro
, Qt
)
2497 || executing_kbd_macro_index
>= XFASTINT (Flength (Vexecuting_kbd_macro
)))
2503 c
= Faref (Vexecuting_kbd_macro
, make_number (executing_kbd_macro_index
));
2504 if (STRINGP (Vexecuting_kbd_macro
)
2505 && (XINT (c
) & 0x80) && (XUINT (c
) <= 0xff))
2506 XSETFASTINT (c
, CHAR_META
| (XINT (c
) & ~0x80));
2508 executing_kbd_macro_index
++;
2513 if (!NILP (unread_switch_frame
))
2515 c
= unread_switch_frame
;
2516 unread_switch_frame
= Qnil
;
2518 /* This event should make it into this_command_keys, and get echoed
2519 again, so we do not set `reread'. */
2523 /* if redisplay was requested */
2524 if (commandflag
>= 0)
2526 /* If there is pending input, process any events which are not
2527 user-visible, such as X selection_request events. */
2529 || detect_input_pending_run_timers (0))
2530 swallow_events (0); /* may clear input_pending */
2532 /* Redisplay if no pending input. */
2533 while (!input_pending
)
2535 if (help_echo_showing_p
&& !EQ (selected_window
, minibuf_window
))
2536 redisplay_preserve_echo_area (5);
2541 /* Normal case: no input arrived during redisplay. */
2544 /* Input arrived and pre-empted redisplay.
2545 Process any events which are not user-visible. */
2547 /* If that cleared input_pending, try again to redisplay. */
2551 /* Message turns off echoing unless more keystrokes turn it on again.
2553 The code in 20.x for the condition was
2555 1. echo_area_glyphs && *echo_area_glyphs
2556 2. && echo_area_glyphs != current_kboard->echobuf
2557 3. && ok_to_echo_at_next_pause != echo_area_glyphs
2559 (1) means there's a current message displayed
2561 (2) means it's not the message from echoing from the current
2564 (3) There's only one place in 20.x where ok_to_echo_at_next_pause
2565 is set to a non-null value. This is done in read_char and it is
2566 set to echo_area_glyphs after a call to echo_char. That means
2567 ok_to_echo_at_next_pause is either null or
2568 current_kboard->echobuf with the appropriate current_kboard at
2571 So, condition (3) means in clear text ok_to_echo_at_next_pause
2572 must be either null, or the current message isn't from echoing at
2573 all, or it's from echoing from a different kboard than the
2576 if (/* There currently is something in the echo area. */
2577 !NILP (echo_area_buffer
[0])
2578 && (/* And it's either not from echoing. */
2579 !EQ (echo_area_buffer
[0], echo_message_buffer
)
2580 /* Or it's an echo from a different kboard. */
2581 || echo_kboard
!= current_kboard
2582 /* Or we explicitly allow overwriting whatever there is. */
2583 || ok_to_echo_at_next_pause
== NULL
))
2588 /* Try reading a character via menu prompting in the minibuf.
2589 Try this before the sit-for, because the sit-for
2590 would do the wrong thing if we are supposed to do
2591 menu prompting. If EVENT_HAS_PARAMETERS then we are reading
2592 after a mouse event so don't try a minibuf menu. */
2594 if (nmaps
> 0 && INTERACTIVE
2595 && !NILP (prev_event
) && ! EVENT_HAS_PARAMETERS (prev_event
)
2596 /* Don't bring up a menu if we already have another event. */
2597 && NILP (Vunread_command_events
)
2598 && unread_command_char
< 0
2599 && !detect_input_pending_run_timers (0))
2601 c
= read_char_minibuf_menu_prompt (commandflag
, nmaps
, maps
);
2604 key_already_recorded
= 1;
2609 /* Make a longjmp point for quits to use, but don't alter getcjmp just yet.
2610 We will do that below, temporarily for short sections of code,
2611 when appropriate. local_getcjmp must be in effect
2612 around any call to sit_for or kbd_buffer_get_event;
2613 it *must not* be in effect when we call redisplay. */
2615 if (_setjmp (local_getcjmp
))
2617 /* We must have saved the outer value of getcjmp here,
2618 so restore it now. */
2619 restore_getcjmp (save_jump
);
2620 XSETINT (c
, quit_char
);
2621 internal_last_event_frame
= selected_frame
;
2622 Vlast_event_frame
= internal_last_event_frame
;
2623 /* If we report the quit char as an event,
2624 don't do so more than once. */
2625 if (!NILP (Vinhibit_quit
))
2630 KBOARD
*kb
= FRAME_KBOARD (XFRAME (selected_frame
));
2631 if (kb
!= current_kboard
)
2633 Lisp_Object link
= kb
->kbd_queue
;
2634 /* We shouldn't get here if we were in single-kboard mode! */
2639 while (CONSP (XCDR (link
)))
2641 if (!NILP (XCDR (link
)))
2645 kb
->kbd_queue
= Fcons (c
, Qnil
);
2647 XSETCDR (link
, Fcons (c
, Qnil
));
2648 kb
->kbd_queue_has_data
= 1;
2649 current_kboard
= kb
;
2650 /* This is going to exit from read_char
2651 so we had better get rid of this frame's stuff. */
2653 longjmp (wrong_kboard_jmpbuf
, 1);
2660 timer_start_idle ();
2662 /* If in middle of key sequence and minibuffer not active,
2663 start echoing if enough time elapses. */
2665 if (minibuf_level
== 0
2666 && !current_kboard
->immediate_echo
2667 && this_command_key_count
> 0
2669 && (FLOATP (Vecho_keystrokes
) || INTEGERP (Vecho_keystrokes
))
2670 && NILP (Fzerop (Vecho_keystrokes
))
2671 && (/* No message. */
2672 NILP (echo_area_buffer
[0])
2673 /* Or empty message. */
2674 || (BUF_BEG (XBUFFER (echo_area_buffer
[0]))
2675 == BUF_Z (XBUFFER (echo_area_buffer
[0])))
2676 /* Or already echoing from same kboard. */
2677 || (echo_kboard
&& ok_to_echo_at_next_pause
== echo_kboard
)
2678 /* Or not echoing before and echoing allowed. */
2679 || (!echo_kboard
&& ok_to_echo_at_next_pause
)))
2683 /* After a mouse event, start echoing right away.
2684 This is because we are probably about to display a menu,
2685 and we don't want to delay before doing so. */
2686 if (EVENT_HAS_PARAMETERS (prev_event
))
2691 double duration
= extract_float (Vecho_keystrokes
);
2692 sec
= (int) duration
;
2693 usec
= (duration
- sec
) * 1000000;
2694 save_getcjmp (save_jump
);
2695 restore_getcjmp (local_getcjmp
);
2696 tem0
= sit_for (sec
, usec
, 1, 1, 0);
2697 restore_getcjmp (save_jump
);
2699 && ! CONSP (Vunread_command_events
))
2704 /* Maybe auto save due to number of keystrokes. */
2706 if (commandflag
!= 0
2707 && auto_save_interval
> 0
2708 && num_nonmacro_input_events
- last_auto_save
> max (auto_save_interval
, 20)
2709 && !detect_input_pending_run_timers (0))
2711 Fdo_auto_save (Qnil
, Qnil
);
2712 /* Hooks can actually change some buffers in auto save. */
2716 /* Try reading using an X menu.
2717 This is never confused with reading using the minibuf
2718 because the recursive call of read_char in read_char_minibuf_menu_prompt
2719 does not pass on any keymaps. */
2721 if (nmaps
> 0 && INTERACTIVE
2722 && !NILP (prev_event
)
2723 && EVENT_HAS_PARAMETERS (prev_event
)
2724 && !EQ (XCAR (prev_event
), Qmenu_bar
)
2725 && !EQ (XCAR (prev_event
), Qtool_bar
)
2726 /* Don't bring up a menu if we already have another event. */
2727 && NILP (Vunread_command_events
)
2728 && unread_command_char
< 0)
2730 c
= read_char_x_menu_prompt (nmaps
, maps
, prev_event
, used_mouse_menu
);
2732 /* Now that we have read an event, Emacs is not idle. */
2738 /* Maybe autosave and/or garbage collect due to idleness. */
2740 if (INTERACTIVE
&& NILP (c
))
2742 int delay_level
, buffer_size
;
2744 /* Slow down auto saves logarithmically in size of current buffer,
2745 and garbage collect while we're at it. */
2746 if (! MINI_WINDOW_P (XWINDOW (selected_window
)))
2747 last_non_minibuf_size
= Z
- BEG
;
2748 buffer_size
= (last_non_minibuf_size
>> 8) + 1;
2750 while (buffer_size
> 64)
2751 delay_level
++, buffer_size
-= buffer_size
>> 2;
2752 if (delay_level
< 4) delay_level
= 4;
2753 /* delay_level is 4 for files under around 50k, 7 at 100k,
2754 9 at 200k, 11 at 300k, and 12 at 500k. It is 15 at 1 meg. */
2756 /* Auto save if enough time goes by without input. */
2757 if (commandflag
!= 0
2758 && num_nonmacro_input_events
> last_auto_save
2759 && INTEGERP (Vauto_save_timeout
)
2760 && XINT (Vauto_save_timeout
) > 0)
2764 save_getcjmp (save_jump
);
2765 restore_getcjmp (local_getcjmp
);
2766 tem0
= sit_for (delay_level
* XFASTINT (Vauto_save_timeout
) / 4,
2768 restore_getcjmp (save_jump
);
2771 && ! CONSP (Vunread_command_events
))
2773 Fdo_auto_save (Qnil
, Qnil
);
2775 /* If we have auto-saved and there is still no input
2776 available, garbage collect if there has been enough
2777 consing going on to make it worthwhile. */
2778 if (!detect_input_pending_run_timers (0)
2779 && consing_since_gc
> gc_cons_threshold
/ 2)
2780 Fgarbage_collect ();
2787 /* If this has become non-nil here, it has been set by a timer
2788 or sentinel or filter. */
2789 if (CONSP (Vunread_command_events
))
2791 c
= XCAR (Vunread_command_events
);
2792 Vunread_command_events
= XCDR (Vunread_command_events
);
2795 /* Read something from current KBOARD's side queue, if possible. */
2799 if (current_kboard
->kbd_queue_has_data
)
2801 if (!CONSP (current_kboard
->kbd_queue
))
2803 c
= XCAR (current_kboard
->kbd_queue
);
2804 current_kboard
->kbd_queue
2805 = XCDR (current_kboard
->kbd_queue
);
2806 if (NILP (current_kboard
->kbd_queue
))
2807 current_kboard
->kbd_queue_has_data
= 0;
2808 input_pending
= readable_events (0);
2809 if (EVENT_HAS_PARAMETERS (c
)
2810 && EQ (EVENT_HEAD_KIND (EVENT_HEAD (c
)), Qswitch_frame
))
2811 internal_last_event_frame
= XCAR (XCDR (c
));
2812 Vlast_event_frame
= internal_last_event_frame
;
2817 /* If current_kboard's side queue is empty check the other kboards.
2818 If one of them has data that we have not yet seen here,
2819 switch to it and process the data waiting for it.
2821 Note: if the events queued up for another kboard
2822 have already been seen here, and therefore are not a complete command,
2823 the kbd_queue_has_data field is 0, so we skip that kboard here.
2824 That's to avoid an infinite loop switching between kboards here. */
2825 if (NILP (c
) && !single_kboard
)
2828 for (kb
= all_kboards
; kb
; kb
= kb
->next_kboard
)
2829 if (kb
->kbd_queue_has_data
)
2831 current_kboard
= kb
;
2832 /* This is going to exit from read_char
2833 so we had better get rid of this frame's stuff. */
2835 longjmp (wrong_kboard_jmpbuf
, 1);
2844 /* Finally, we read from the main queue,
2845 and if that gives us something we can't use yet, we put it on the
2846 appropriate side queue and try again. */
2852 /* Actually read a character, waiting if necessary. */
2853 save_getcjmp (save_jump
);
2854 restore_getcjmp (local_getcjmp
);
2855 timer_start_idle ();
2856 c
= kbd_buffer_get_event (&kb
, used_mouse_menu
);
2857 restore_getcjmp (save_jump
);
2860 if (! NILP (c
) && (kb
!= current_kboard
))
2862 Lisp_Object link
= kb
->kbd_queue
;
2865 while (CONSP (XCDR (link
)))
2867 if (!NILP (XCDR (link
)))
2871 kb
->kbd_queue
= Fcons (c
, Qnil
);
2873 XSETCDR (link
, Fcons (c
, Qnil
));
2874 kb
->kbd_queue_has_data
= 1;
2878 current_kboard
= kb
;
2879 /* This is going to exit from read_char
2880 so we had better get rid of this frame's stuff. */
2882 longjmp (wrong_kboard_jmpbuf
, 1);
2887 /* Terminate Emacs in batch mode if at eof. */
2888 if (noninteractive
&& INTEGERP (c
) && XINT (c
) < 0)
2889 Fkill_emacs (make_number (1));
2893 /* Add in any extra modifiers, where appropriate. */
2894 if ((extra_keyboard_modifiers
& CHAR_CTL
)
2895 || ((extra_keyboard_modifiers
& 0177) < ' '
2896 && (extra_keyboard_modifiers
& 0177) != 0))
2897 XSETINT (c
, make_ctrl_char (XINT (c
)));
2899 /* Transfer any other modifier bits directly from
2900 extra_keyboard_modifiers to c. Ignore the actual character code
2901 in the low 16 bits of extra_keyboard_modifiers. */
2902 XSETINT (c
, XINT (c
) | (extra_keyboard_modifiers
& ~0xff7f & ~CHAR_CTL
));
2912 if (commandflag
>= 0
2913 && !input_pending
&& !detect_input_pending_run_timers (0))
2921 /* Buffer switch events are only for internal wakeups
2922 so don't show them to the user.
2923 Also, don't record a key if we already did. */
2924 if (BUFFERP (c
) || key_already_recorded
)
2927 /* Process special events within read_char
2928 and loop around to read another event. */
2931 tem
= access_keymap (get_keymap (Vspecial_event_map
, 0, 1), c
, 0, 0, 1);
2936 int was_locked
= single_kboard
;
2938 last_input_char
= c
;
2939 Fcommand_execute (tem
, Qnil
, Fvector (1, &last_input_char
), Qt
);
2941 if (CONSP (c
) && EQ (XCAR (c
), Qselect_window
))
2942 /* We stopped being idle for this event; undo that. This
2943 prevents automatic window selection (under
2944 mouse_autoselect_window from acting as a real input event, for
2945 example banishing the mouse under mouse-avoidance-mode. */
2946 timer_resume_idle ();
2948 /* Resume allowing input from any kboard, if that was true before. */
2950 any_kboard_state ();
2955 /* Handle things that only apply to characters. */
2958 /* If kbd_buffer_get_event gave us an EOF, return that. */
2962 if ((STRINGP (Vkeyboard_translate_table
)
2963 && SCHARS (Vkeyboard_translate_table
) > (unsigned) XFASTINT (c
))
2964 || (VECTORP (Vkeyboard_translate_table
)
2965 && XVECTOR (Vkeyboard_translate_table
)->size
> (unsigned) XFASTINT (c
))
2966 || (CHAR_TABLE_P (Vkeyboard_translate_table
)
2967 && CHAR_VALID_P (XINT (c
), 0)))
2970 d
= Faref (Vkeyboard_translate_table
, c
);
2971 /* nil in keyboard-translate-table means no translation. */
2977 /* If this event is a mouse click in the menu bar,
2978 return just menu-bar for now. Modify the mouse click event
2979 so we won't do this twice, then queue it up. */
2980 if (EVENT_HAS_PARAMETERS (c
)
2982 && CONSP (EVENT_START (c
))
2983 && CONSP (XCDR (EVENT_START (c
))))
2987 posn
= POSN_POSN (EVENT_START (c
));
2988 /* Handle menu-bar events:
2989 insert the dummy prefix event `menu-bar'. */
2990 if (EQ (posn
, Qmenu_bar
) || EQ (posn
, Qtool_bar
))
2992 /* Change menu-bar to (menu-bar) as the event "position". */
2993 POSN_SET_POSN (EVENT_START (c
), Fcons (posn
, Qnil
));
2996 Vunread_command_events
= Fcons (c
, Vunread_command_events
);
3001 /* Store these characters into recent_keys, the dribble file if any,
3002 and the keyboard macro being defined, if any. */
3004 if (! NILP (also_record
))
3005 record_char (also_record
);
3007 /* Wipe the echo area.
3008 But first, if we are about to use an input method,
3009 save the echo area contents for it to refer to. */
3011 && ! NILP (Vinput_method_function
)
3012 && (unsigned) XINT (c
) >= ' '
3013 && (unsigned) XINT (c
) != 127
3014 && (unsigned) XINT (c
) < 256)
3016 previous_echo_area_message
= Fcurrent_message ();
3017 Vinput_method_previous_message
= previous_echo_area_message
;
3020 /* Now wipe the echo area, except for help events which do their
3021 own stuff with the echo area. */
3023 || (!(EQ (Qhelp_echo
, XCAR (c
)))
3024 && !(EQ (Qswitch_frame
, XCAR (c
)))))
3026 if (!NILP (echo_area_buffer
[0]))
3027 safe_run_hooks (Qecho_area_clear_hook
);
3028 clear_message (1, 0);
3031 reread_for_input_method
:
3033 /* Pass this to the input method, if appropriate. */
3035 && ! NILP (Vinput_method_function
)
3036 /* Don't run the input method within a key sequence,
3037 after the first event of the key sequence. */
3038 && NILP (prev_event
)
3039 && (unsigned) XINT (c
) >= ' '
3040 && (unsigned) XINT (c
) != 127
3041 && (unsigned) XINT (c
) < 256)
3044 int key_count
, key_count_reset
;
3045 struct gcpro gcpro1
;
3046 int count
= SPECPDL_INDEX ();
3048 /* Save the echo status. */
3049 int saved_immediate_echo
= current_kboard
->immediate_echo
;
3050 struct kboard
*saved_ok_to_echo
= ok_to_echo_at_next_pause
;
3051 Lisp_Object saved_echo_string
= current_kboard
->echo_string
;
3052 int saved_echo_after_prompt
= current_kboard
->echo_after_prompt
;
3055 if (before_command_restore_flag
)
3057 this_command_key_count
= before_command_key_count_1
;
3058 if (this_command_key_count
< this_single_command_key_start
)
3059 this_single_command_key_start
= this_command_key_count
;
3060 echo_truncate (before_command_echo_length_1
);
3061 before_command_restore_flag
= 0;
3065 /* Save the this_command_keys status. */
3066 key_count
= this_command_key_count
;
3067 key_count_reset
= this_command_key_count_reset
;
3070 keys
= Fcopy_sequence (this_command_keys
);
3075 /* Clear out this_command_keys. */
3076 this_command_key_count
= 0;
3077 this_command_key_count_reset
= 0;
3079 /* Now wipe the echo area. */
3080 if (!NILP (echo_area_buffer
[0]))
3081 safe_run_hooks (Qecho_area_clear_hook
);
3082 clear_message (1, 0);
3085 /* If we are not reading a key sequence,
3086 never use the echo area. */
3089 specbind (Qinput_method_use_echo_area
, Qt
);
3092 /* Call the input method. */
3093 tem
= call1 (Vinput_method_function
, c
);
3095 tem
= unbind_to (count
, tem
);
3097 /* Restore the saved echoing state
3098 and this_command_keys state. */
3099 this_command_key_count
= key_count
;
3100 this_command_key_count_reset
= key_count_reset
;
3102 this_command_keys
= keys
;
3105 ok_to_echo_at_next_pause
= saved_ok_to_echo
;
3106 current_kboard
->echo_string
= saved_echo_string
;
3107 current_kboard
->echo_after_prompt
= saved_echo_after_prompt
;
3108 if (saved_immediate_echo
)
3113 /* The input method can return no events. */
3116 /* Bring back the previous message, if any. */
3117 if (! NILP (previous_echo_area_message
))
3118 message_with_string ("%s", previous_echo_area_message
, 0);
3121 /* It returned one event or more. */
3123 Vunread_post_input_method_events
3124 = nconc2 (XCDR (tem
), Vunread_post_input_method_events
);
3129 /* Display help if not echoing. */
3130 if (CONSP (c
) && EQ (XCAR (c
), Qhelp_echo
))
3132 /* (help-echo FRAME HELP WINDOW OBJECT POS). */
3133 Lisp_Object help
, object
, position
, window
, tem
;
3135 tem
= Fcdr (XCDR (c
));
3138 window
= Fcar (tem
);
3140 object
= Fcar (tem
);
3142 position
= Fcar (tem
);
3144 show_help_echo (help
, window
, object
, position
, 0);
3146 /* We stopped being idle for this event; undo that. */
3147 timer_resume_idle ();
3151 if (! reread
|| this_command_key_count
== 0
3152 || this_command_key_count_reset
)
3155 /* Don't echo mouse motion events. */
3156 if ((FLOATP (Vecho_keystrokes
) || INTEGERP (Vecho_keystrokes
))
3157 && NILP (Fzerop (Vecho_keystrokes
))
3158 && ! (EVENT_HAS_PARAMETERS (c
)
3159 && EQ (EVENT_HEAD_KIND (EVENT_HEAD (c
)), Qmouse_movement
)))
3162 if (! NILP (also_record
))
3163 echo_char (also_record
);
3164 /* Once we reread a character, echoing can happen
3165 the next time we pause to read a new one. */
3166 ok_to_echo_at_next_pause
= current_kboard
;
3169 /* Record this character as part of the current key. */
3170 add_command_key (c
);
3171 if (! NILP (also_record
))
3172 add_command_key (also_record
);
3175 last_input_char
= c
;
3178 /* Process the help character specially if enabled */
3179 if (!NILP (Vhelp_form
) && help_char_p (c
))
3182 count
= SPECPDL_INDEX ();
3184 record_unwind_protect (Fset_window_configuration
,
3185 Fcurrent_window_configuration (Qnil
));
3187 tem0
= Feval (Vhelp_form
);
3189 internal_with_output_to_temp_buffer ("*Help*", print_help
, tem0
);
3193 c
= read_char (0, 0, 0, Qnil
, 0);
3194 while (BUFFERP (c
));
3195 /* Remove the help from the frame */
3196 unbind_to (count
, Qnil
);
3199 if (EQ (c
, make_number (040)))
3203 c
= read_char (0, 0, 0, Qnil
, 0);
3204 while (BUFFERP (c
));
3213 /* Record a key that came from a mouse menu.
3214 Record it for echoing, for this-command-keys, and so on. */
3220 /* Wipe the echo area. */
3221 clear_message (1, 0);
3226 before_command_key_count
= this_command_key_count
;
3227 before_command_echo_length
= echo_length ();
3230 /* Don't echo mouse motion events. */
3231 if ((FLOATP (Vecho_keystrokes
) || INTEGERP (Vecho_keystrokes
))
3232 && NILP (Fzerop (Vecho_keystrokes
)))
3236 /* Once we reread a character, echoing can happen
3237 the next time we pause to read a new one. */
3238 ok_to_echo_at_next_pause
= 0;
3241 /* Record this character as part of the current key. */
3242 add_command_key (c
);
3244 /* Re-reading in the middle of a command */
3245 last_input_char
= c
;
3249 /* Return 1 if should recognize C as "the help character". */
3257 if (EQ (c
, Vhelp_char
))
3259 for (tail
= Vhelp_event_list
; CONSP (tail
); tail
= XCDR (tail
))
3260 if (EQ (c
, XCAR (tail
)))
3265 /* Record the input event C in various ways. */
3273 if (CONSP (c
) && (EQ (XCAR (c
), Qhelp_echo
) || EQ (XCAR (c
), Qmouse_movement
)))
3275 /* To avoid filling recent_keys with help-echo and mouse-movement
3276 events, we filter out repeated help-echo events, only store the
3277 first and last in a series of mouse-movement events, and don't
3278 store repeated help-echo events which are only separated by
3279 mouse-movement events. */
3281 Lisp_Object ev1
, ev2
, ev3
;
3284 if ((ix1
= recent_keys_index
- 1) < 0)
3285 ix1
= NUM_RECENT_KEYS
- 1;
3286 ev1
= AREF (recent_keys
, ix1
);
3288 if ((ix2
= ix1
- 1) < 0)
3289 ix2
= NUM_RECENT_KEYS
- 1;
3290 ev2
= AREF (recent_keys
, ix2
);
3292 if ((ix3
= ix2
- 1) < 0)
3293 ix3
= NUM_RECENT_KEYS
- 1;
3294 ev3
= AREF (recent_keys
, ix3
);
3296 if (EQ (XCAR (c
), Qhelp_echo
))
3298 /* Don't record `help-echo' in recent_keys unless it shows some help
3299 message, and a different help than the previously recorded
3301 Lisp_Object help
, last_help
;
3303 help
= Fcar_safe (Fcdr_safe (XCDR (c
)));
3304 if (!STRINGP (help
))
3306 else if (CONSP (ev1
) && EQ (XCAR (ev1
), Qhelp_echo
)
3307 && (last_help
= Fcar_safe (Fcdr_safe (XCDR (ev1
))), EQ (last_help
, help
)))
3309 else if (CONSP (ev1
) && EQ (XCAR (ev1
), Qmouse_movement
)
3310 && CONSP (ev2
) && EQ (XCAR (ev2
), Qhelp_echo
)
3311 && (last_help
= Fcar_safe (Fcdr_safe (XCDR (ev2
))), EQ (last_help
, help
)))
3313 else if (CONSP (ev1
) && EQ (XCAR (ev1
), Qmouse_movement
)
3314 && CONSP (ev2
) && EQ (XCAR (ev2
), Qmouse_movement
)
3315 && CONSP (ev3
) && EQ (XCAR (ev3
), Qhelp_echo
)
3316 && (last_help
= Fcar_safe (Fcdr_safe (XCDR (ev3
))), EQ (last_help
, help
)))
3319 else if (EQ (XCAR (c
), Qmouse_movement
))
3321 /* Only record one pair of `mouse-movement' on a window in recent_keys.
3322 So additional mouse movement events replace the last element. */
3323 Lisp_Object last_window
, window
;
3325 window
= Fcar_safe (Fcar_safe (XCDR (c
)));
3326 if (CONSP (ev1
) && EQ (XCAR (ev1
), Qmouse_movement
)
3327 && (last_window
= Fcar_safe (Fcar_safe (XCDR (ev1
))), EQ (last_window
, window
))
3328 && CONSP (ev2
) && EQ (XCAR (ev2
), Qmouse_movement
)
3329 && (last_window
= Fcar_safe (Fcar_safe (XCDR (ev2
))), EQ (last_window
, window
)))
3331 ASET (recent_keys
, ix1
, c
);
3337 store_kbd_macro_char (c
);
3342 ASET (recent_keys
, recent_keys_index
, c
);
3343 if (++recent_keys_index
>= NUM_RECENT_KEYS
)
3344 recent_keys_index
= 0;
3346 else if (recorded
< 0)
3348 /* We need to remove one or two events from recent_keys.
3349 To do this, we simply put nil at those events and move the
3350 recent_keys_index backwards over those events. Usually,
3351 users will never see those nil events, as they will be
3352 overwritten by the command keys entered to see recent_keys
3355 while (recorded
++ < 0 && total_keys
> 0)
3357 if (total_keys
< NUM_RECENT_KEYS
)
3359 if (--recent_keys_index
< 0)
3360 recent_keys_index
= NUM_RECENT_KEYS
- 1;
3361 ASET (recent_keys
, recent_keys_index
, Qnil
);
3365 num_nonmacro_input_events
++;
3367 /* Write c to the dribble file. If c is a lispy event, write
3368 the event's symbol to the dribble file, in <brackets>. Bleaugh.
3369 If you, dear reader, have a better idea, you've got the source. :-) */
3374 if (XUINT (c
) < 0x100)
3375 putc (XINT (c
), dribble
);
3377 fprintf (dribble
, " 0x%x", (int) XUINT (c
));
3381 Lisp_Object dribblee
;
3383 /* If it's a structured event, take the event header. */
3384 dribblee
= EVENT_HEAD (c
);
3386 if (SYMBOLP (dribblee
))
3388 putc ('<', dribble
);
3389 fwrite (SDATA (SYMBOL_NAME (dribblee
)), sizeof (char),
3390 SBYTES (SYMBOL_NAME (dribblee
)),
3392 putc ('>', dribble
);
3404 struct buffer
*old
= current_buffer
;
3405 Fprinc (object
, Qnil
);
3406 set_buffer_internal (XBUFFER (Vstandard_output
));
3407 call0 (intern ("help-mode"));
3408 set_buffer_internal (old
);
3412 /* Copy out or in the info on where C-g should throw to.
3413 This is used when running Lisp code from within get_char,
3414 in case get_char is called recursively.
3415 See read_process_output. */
3421 bcopy (getcjmp
, temp
, sizeof getcjmp
);
3425 restore_getcjmp (temp
)
3428 bcopy (temp
, getcjmp
, sizeof getcjmp
);
3433 /* Restore mouse tracking enablement. See Ftrack_mouse for the only use
3434 of this function. */
3437 tracking_off (old_value
)
3438 Lisp_Object old_value
;
3440 do_mouse_tracking
= old_value
;
3441 if (NILP (old_value
))
3443 /* Redisplay may have been preempted because there was input
3444 available, and it assumes it will be called again after the
3445 input has been processed. If the only input available was
3446 the sort that we have just disabled, then we need to call
3448 if (!readable_events (READABLE_EVENTS_DO_TIMERS_NOW
))
3450 redisplay_preserve_echo_area (6);
3451 get_input_pending (&input_pending
,
3452 READABLE_EVENTS_DO_TIMERS_NOW
);
3458 DEFUN ("track-mouse", Ftrack_mouse
, Strack_mouse
, 0, UNEVALLED
, 0,
3459 doc
: /* Evaluate BODY with mouse movement events enabled.
3460 Within a `track-mouse' form, mouse motion generates input events that
3461 you can read with `read-event'.
3462 Normally, mouse motion is ignored.
3463 usage: (track-mouse BODY ...) */)
3467 int count
= SPECPDL_INDEX ();
3470 record_unwind_protect (tracking_off
, do_mouse_tracking
);
3472 do_mouse_tracking
= Qt
;
3474 val
= Fprogn (args
);
3475 return unbind_to (count
, val
);
3478 /* If mouse has moved on some frame, return one of those frames.
3479 Return 0 otherwise. */
3484 Lisp_Object tail
, frame
;
3486 FOR_EACH_FRAME (tail
, frame
)
3488 if (XFRAME (frame
)->mouse_moved
)
3489 return XFRAME (frame
);
3495 #endif /* HAVE_MOUSE */
3497 /* Low level keyboard/mouse input.
3498 kbd_buffer_store_event places events in kbd_buffer, and
3499 kbd_buffer_get_event retrieves them. */
3501 /* Return true iff there are any events in the queue that read-char
3502 would return. If this returns false, a read-char would block. */
3504 readable_events (flags
)
3507 if (flags
& READABLE_EVENTS_DO_TIMERS_NOW
)
3510 /* If the buffer contains only FOCUS_IN_EVENT events, and
3511 READABLE_EVENTS_FILTER_EVENTS is set, report it as empty. */
3512 if (kbd_fetch_ptr
!= kbd_store_ptr
)
3514 if (flags
& (READABLE_EVENTS_FILTER_EVENTS
3515 #ifdef USE_TOOLKIT_SCROLL_BARS
3516 | READABLE_EVENTS_IGNORE_SQUEEZABLES
3520 struct input_event
*event
;
3522 event
= ((kbd_fetch_ptr
< kbd_buffer
+ KBD_BUFFER_SIZE
)
3529 #ifdef USE_TOOLKIT_SCROLL_BARS
3530 (flags
& READABLE_EVENTS_FILTER_EVENTS
) &&
3532 event
->kind
== FOCUS_IN_EVENT
)
3533 #ifdef USE_TOOLKIT_SCROLL_BARS
3534 && !((flags
& READABLE_EVENTS_IGNORE_SQUEEZABLES
)
3535 && event
->kind
== SCROLL_BAR_CLICK_EVENT
3536 && event
->part
== scroll_bar_handle
3537 && event
->modifiers
== 0)
3542 if (event
== kbd_buffer
+ KBD_BUFFER_SIZE
)
3545 while (event
!= kbd_store_ptr
);
3552 if (!(flags
& READABLE_EVENTS_IGNORE_SQUEEZABLES
)
3553 && !NILP (do_mouse_tracking
) && some_mouse_moved ())
3558 if (current_kboard
->kbd_queue_has_data
)
3564 for (kb
= all_kboards
; kb
; kb
= kb
->next_kboard
)
3565 if (kb
->kbd_queue_has_data
)
3571 /* Set this for debugging, to have a way to get out */
3576 event_to_kboard (event
)
3577 struct input_event
*event
;
3580 frame
= event
->frame_or_window
;
3582 frame
= XCAR (frame
);
3583 else if (WINDOWP (frame
))
3584 frame
= WINDOW_FRAME (XWINDOW (frame
));
3586 /* There are still some events that don't set this field.
3587 For now, just ignore the problem.
3588 Also ignore dead frames here. */
3589 if (!FRAMEP (frame
) || !FRAME_LIVE_P (XFRAME (frame
)))
3592 return FRAME_KBOARD (XFRAME (frame
));
3597 Lisp_Object Vthrow_on_input
;
3599 /* Store an event obtained at interrupt level into kbd_buffer, fifo */
3602 kbd_buffer_store_event (event
)
3603 register struct input_event
*event
;
3605 kbd_buffer_store_event_hold (event
, 0);
3608 /* Store EVENT obtained at interrupt level into kbd_buffer, fifo.
3610 If HOLD_QUIT is 0, just stuff EVENT into the fifo.
3611 Else, if HOLD_QUIT.kind != NO_EVENT, discard EVENT.
3612 Else, if EVENT is a quit event, store the quit event
3613 in HOLD_QUIT, and return (thus ignoring further events).
3615 This is used in read_avail_input to postpone the processing
3616 of the quit event until all subsequent input events have been
3617 parsed (and discarded).
3621 kbd_buffer_store_event_hold (event
, hold_quit
)
3622 register struct input_event
*event
;
3623 struct input_event
*hold_quit
;
3625 if (event
->kind
== NO_EVENT
)
3628 if (hold_quit
&& hold_quit
->kind
!= NO_EVENT
)
3631 if (event
->kind
== ASCII_KEYSTROKE_EVENT
)
3633 register int c
= event
->code
& 0377;
3635 if (event
->modifiers
& ctrl_modifier
)
3636 c
= make_ctrl_char (c
);
3638 c
|= (event
->modifiers
3639 & (meta_modifier
| alt_modifier
3640 | hyper_modifier
| super_modifier
));
3646 struct input_event
*sp
;
3649 && (kb
= FRAME_KBOARD (XFRAME (event
->frame_or_window
)),
3650 kb
!= current_kboard
))
3653 = Fcons (make_lispy_switch_frame (event
->frame_or_window
),
3654 Fcons (make_number (c
), Qnil
));
3655 kb
->kbd_queue_has_data
= 1;
3656 for (sp
= kbd_fetch_ptr
; sp
!= kbd_store_ptr
; sp
++)
3658 if (sp
== kbd_buffer
+ KBD_BUFFER_SIZE
)
3661 if (event_to_kboard (sp
) == kb
)
3663 sp
->kind
= NO_EVENT
;
3664 sp
->frame_or_window
= Qnil
;
3674 bcopy (event
, (char *) hold_quit
, sizeof (*event
));
3678 /* If this results in a quit_char being returned to Emacs as
3679 input, set Vlast_event_frame properly. If this doesn't
3680 get returned to Emacs as an event, the next event read
3681 will set Vlast_event_frame again, so this is safe to do. */
3685 focus
= FRAME_FOCUS_FRAME (XFRAME (event
->frame_or_window
));
3687 focus
= event
->frame_or_window
;
3688 internal_last_event_frame
= focus
;
3689 Vlast_event_frame
= focus
;
3692 last_event_timestamp
= event
->timestamp
;
3693 interrupt_signal (0 /* dummy */);
3697 if (c
&& c
== stop_character
)
3703 /* Don't insert two BUFFER_SWITCH_EVENT's in a row.
3704 Just ignore the second one. */
3705 else if (event
->kind
== BUFFER_SWITCH_EVENT
3706 && kbd_fetch_ptr
!= kbd_store_ptr
3707 && ((kbd_store_ptr
== kbd_buffer
3708 ? kbd_buffer
+ KBD_BUFFER_SIZE
- 1
3709 : kbd_store_ptr
- 1)->kind
) == BUFFER_SWITCH_EVENT
)
3712 if (kbd_store_ptr
- kbd_buffer
== KBD_BUFFER_SIZE
)
3713 kbd_store_ptr
= kbd_buffer
;
3715 /* Don't let the very last slot in the buffer become full,
3716 since that would make the two pointers equal,
3717 and that is indistinguishable from an empty buffer.
3718 Discard the event if it would fill the last slot. */
3719 if (kbd_fetch_ptr
- 1 != kbd_store_ptr
)
3721 *kbd_store_ptr
= *event
;
3725 /* If we're inside while-no-input, and this event qualifies
3726 as input, set quit-flag to cause an interrupt. */
3727 if (!NILP (Vthrow_on_input
)
3728 && event
->kind
!= FOCUS_IN_EVENT
3729 && event
->kind
!= HELP_EVENT
3730 && event
->kind
!= DEICONIFY_EVENT
)
3732 Vquit_flag
= Vthrow_on_input
;
3733 /* If we're inside a function that wants immediate quits,
3735 if (immediate_quit
&& NILP (Vinhibit_quit
))
3745 /* Put an input event back in the head of the event queue. */
3748 kbd_buffer_unget_event (event
)
3749 register struct input_event
*event
;
3751 if (kbd_fetch_ptr
== kbd_buffer
)
3752 kbd_fetch_ptr
= kbd_buffer
+ KBD_BUFFER_SIZE
;
3754 /* Don't let the very last slot in the buffer become full, */
3755 if (kbd_fetch_ptr
- 1 != kbd_store_ptr
)
3758 *kbd_fetch_ptr
= *event
;
3763 /* Generate HELP_EVENT input_events in BUFP which has room for
3764 SIZE events. If there's not enough room in BUFP, ignore this
3767 HELP is the help form.
3769 FRAME is the frame on which the help is generated. OBJECT is the
3770 Lisp object where the help was found (a buffer, a string, an
3771 overlay, or nil if neither from a string nor from a buffer. POS is
3772 the position within OBJECT where the help was found.
3774 Value is the number of input_events generated. */
3777 gen_help_event (help
, frame
, window
, object
, pos
)
3778 Lisp_Object help
, frame
, object
, window
;
3781 struct input_event event
;
3785 event
.kind
= HELP_EVENT
;
3786 event
.frame_or_window
= frame
;
3788 event
.x
= WINDOWP (window
) ? window
: frame
;
3791 kbd_buffer_store_event (&event
);
3795 /* Store HELP_EVENTs for HELP on FRAME in the input queue. */
3798 kbd_buffer_store_help_event (frame
, help
)
3799 Lisp_Object frame
, help
;
3801 struct input_event event
;
3803 event
.kind
= HELP_EVENT
;
3804 event
.frame_or_window
= frame
;
3809 kbd_buffer_store_event (&event
);
3813 /* Discard any mouse events in the event buffer by setting them to
3816 discard_mouse_events ()
3818 struct input_event
*sp
;
3819 for (sp
= kbd_fetch_ptr
; sp
!= kbd_store_ptr
; sp
++)
3821 if (sp
== kbd_buffer
+ KBD_BUFFER_SIZE
)
3824 if (sp
->kind
== MOUSE_CLICK_EVENT
3825 || sp
->kind
== WHEEL_EVENT
3827 || sp
->kind
== W32_SCROLL_BAR_CLICK_EVENT
3829 || sp
->kind
== SCROLL_BAR_CLICK_EVENT
)
3831 sp
->kind
= NO_EVENT
;
3837 /* Return non-zero if there are any real events waiting in the event
3838 buffer, not counting `NO_EVENT's.
3840 If DISCARD is non-zero, discard NO_EVENT events at the front of
3841 the input queue, possibly leaving the input queue empty if there
3842 are no real input events. */
3845 kbd_buffer_events_waiting (discard
)
3848 struct input_event
*sp
;
3850 for (sp
= kbd_fetch_ptr
;
3851 sp
!= kbd_store_ptr
&& sp
->kind
== NO_EVENT
;
3854 if (sp
== kbd_buffer
+ KBD_BUFFER_SIZE
)
3861 return sp
!= kbd_store_ptr
&& sp
->kind
!= NO_EVENT
;
3865 /* Clear input event EVENT. */
3869 struct input_event
*event
;
3871 event
->kind
= NO_EVENT
;
3875 /* Read one event from the event buffer, waiting if necessary.
3876 The value is a Lisp object representing the event.
3877 The value is nil for an event that should be ignored,
3878 or that was handled here.
3879 We always read and discard one event. */
3882 kbd_buffer_get_event (kbp
, used_mouse_menu
)
3884 int *used_mouse_menu
;
3893 *kbp
= current_kboard
;
3897 /* Wait until there is input available. */
3900 if (kbd_fetch_ptr
!= kbd_store_ptr
)
3903 if (!NILP (do_mouse_tracking
) && some_mouse_moved ())
3907 /* If the quit flag is set, then read_char will return
3908 quit_char, so that counts as "available input." */
3909 if (!NILP (Vquit_flag
))
3910 quit_throw_to_read_char ();
3912 /* One way or another, wait until input is available; then, if
3913 interrupt handlers have not read it, read it now. */
3916 wait_for_kbd_input ();
3918 /* Note SIGIO has been undef'd if FIONREAD is missing. */
3922 if (kbd_fetch_ptr
!= kbd_store_ptr
)
3925 if (!NILP (do_mouse_tracking
) && some_mouse_moved ())
3929 wait_reading_process_output (0, 0, -1, 1, Qnil
, NULL
, 0);
3931 if (!interrupt_input
&& kbd_fetch_ptr
== kbd_store_ptr
)
3932 /* Pass 1 for EXPECT since we just waited to have input. */
3933 read_avail_input (1);
3935 #endif /* not VMS */
3938 if (CONSP (Vunread_command_events
))
3941 first
= XCAR (Vunread_command_events
);
3942 Vunread_command_events
= XCDR (Vunread_command_events
);
3943 *kbp
= current_kboard
;
3947 /* At this point, we know that there is a readable event available
3948 somewhere. If the event queue is empty, then there must be a
3949 mouse movement enabled and available. */
3950 if (kbd_fetch_ptr
!= kbd_store_ptr
)
3952 struct input_event
*event
;
3954 event
= ((kbd_fetch_ptr
< kbd_buffer
+ KBD_BUFFER_SIZE
)
3958 last_event_timestamp
= event
->timestamp
;
3961 *kbp
= event_to_kboard (event
);
3963 *kbp
= current_kboard
; /* Better than returning null ptr? */
3965 *kbp
= &the_only_kboard
;
3970 /* These two kinds of events get special handling
3971 and don't actually appear to the command loop.
3972 We return nil for them. */
3973 if (event
->kind
== SELECTION_REQUEST_EVENT
3974 || event
->kind
== SELECTION_CLEAR_EVENT
)
3977 struct input_event copy
;
3979 /* Remove it from the buffer before processing it,
3980 since otherwise swallow_events will see it
3981 and process it again. */
3983 kbd_fetch_ptr
= event
+ 1;
3984 input_pending
= readable_events (0);
3985 x_handle_selection_event (©
);
3987 /* We're getting selection request events, but we don't have
3993 #if defined (HAVE_X11) || defined (HAVE_NTGUI) || defined (MAC_OS)
3994 else if (event
->kind
== DELETE_WINDOW_EVENT
)
3996 /* Make an event (delete-frame (FRAME)). */
3997 obj
= Fcons (event
->frame_or_window
, Qnil
);
3998 obj
= Fcons (Qdelete_frame
, Fcons (obj
, Qnil
));
3999 kbd_fetch_ptr
= event
+ 1;
4002 #if defined (HAVE_X11) || defined (HAVE_NTGUI) || defined (MAC_OS)
4003 else if (event
->kind
== ICONIFY_EVENT
)
4005 /* Make an event (iconify-frame (FRAME)). */
4006 obj
= Fcons (event
->frame_or_window
, Qnil
);
4007 obj
= Fcons (Qiconify_frame
, Fcons (obj
, Qnil
));
4008 kbd_fetch_ptr
= event
+ 1;
4010 else if (event
->kind
== DEICONIFY_EVENT
)
4012 /* Make an event (make-frame-visible (FRAME)). */
4013 obj
= Fcons (event
->frame_or_window
, Qnil
);
4014 obj
= Fcons (Qmake_frame_visible
, Fcons (obj
, Qnil
));
4015 kbd_fetch_ptr
= event
+ 1;
4018 else if (event
->kind
== BUFFER_SWITCH_EVENT
)
4020 /* The value doesn't matter here; only the type is tested. */
4021 XSETBUFFER (obj
, current_buffer
);
4022 kbd_fetch_ptr
= event
+ 1;
4024 #if defined (USE_X_TOOLKIT) || defined (HAVE_NTGUI) || defined (MAC_OS) \
4025 || defined (USE_GTK)
4026 else if (event
->kind
== MENU_BAR_ACTIVATE_EVENT
)
4028 kbd_fetch_ptr
= event
+ 1;
4029 input_pending
= readable_events (0);
4030 if (FRAME_LIVE_P (XFRAME (event
->frame_or_window
)))
4031 x_activate_menubar (XFRAME (event
->frame_or_window
));
4034 #if defined (WINDOWSNT) || defined (MAC_OS)
4035 else if (event
->kind
== LANGUAGE_CHANGE_EVENT
)
4038 /* Make an event (language-change (KEY_SCRIPT)). */
4039 obj
= Fcons (make_number (event
->code
), Qnil
);
4041 /* Make an event (language-change (FRAME CHARSET LCID)). */
4042 obj
= Fcons (event
->frame_or_window
, Qnil
);
4044 obj
= Fcons (Qlanguage_change
, Fcons (obj
, Qnil
));
4045 kbd_fetch_ptr
= event
+ 1;
4048 else if (event
->kind
== SAVE_SESSION_EVENT
)
4050 obj
= Fcons (Qsave_session
, Qnil
);
4051 kbd_fetch_ptr
= event
+ 1;
4053 /* Just discard these, by returning nil.
4054 With MULTI_KBOARD, these events are used as placeholders
4055 when we need to randomly delete events from the queue.
4056 (They shouldn't otherwise be found in the buffer,
4057 but on some machines it appears they do show up
4058 even without MULTI_KBOARD.) */
4059 /* On Windows NT/9X, NO_EVENT is used to delete extraneous
4060 mouse events during a popup-menu call. */
4061 else if (event
->kind
== NO_EVENT
)
4062 kbd_fetch_ptr
= event
+ 1;
4063 else if (event
->kind
== HELP_EVENT
)
4065 Lisp_Object object
, position
, help
, frame
, window
;
4067 frame
= event
->frame_or_window
;
4068 object
= event
->arg
;
4069 position
= make_number (event
->code
);
4072 clear_event (event
);
4074 kbd_fetch_ptr
= event
+ 1;
4075 if (!WINDOWP (window
))
4077 obj
= Fcons (Qhelp_echo
,
4078 list5 (frame
, help
, window
, object
, position
));
4080 else if (event
->kind
== FOCUS_IN_EVENT
)
4082 /* Notification of a FocusIn event. The frame receiving the
4083 focus is in event->frame_or_window. Generate a
4084 switch-frame event if necessary. */
4085 Lisp_Object frame
, focus
;
4087 frame
= event
->frame_or_window
;
4088 focus
= FRAME_FOCUS_FRAME (XFRAME (frame
));
4092 if (!EQ (frame
, internal_last_event_frame
)
4093 && !EQ (frame
, selected_frame
))
4094 obj
= make_lispy_switch_frame (frame
);
4095 internal_last_event_frame
= frame
;
4096 kbd_fetch_ptr
= event
+ 1;
4100 /* If this event is on a different frame, return a switch-frame this
4101 time, and leave the event in the queue for next time. */
4105 frame
= event
->frame_or_window
;
4107 frame
= XCAR (frame
);
4108 else if (WINDOWP (frame
))
4109 frame
= WINDOW_FRAME (XWINDOW (frame
));
4111 focus
= FRAME_FOCUS_FRAME (XFRAME (frame
));
4115 if (! EQ (frame
, internal_last_event_frame
)
4116 && !EQ (frame
, selected_frame
))
4117 obj
= make_lispy_switch_frame (frame
);
4118 internal_last_event_frame
= frame
;
4120 /* If we didn't decide to make a switch-frame event, go ahead
4121 and build a real event from the queue entry. */
4125 obj
= make_lispy_event (event
);
4127 #if defined (USE_X_TOOLKIT) || defined (HAVE_NTGUI) || defined(MAC_OS) \
4128 || defined (USE_GTK)
4129 /* If this was a menu selection, then set the flag to inhibit
4130 writing to last_nonmenu_event. Don't do this if the event
4131 we're returning is (menu-bar), though; that indicates the
4132 beginning of the menu sequence, and we might as well leave
4133 that as the `event with parameters' for this selection. */
4135 && !EQ (event
->frame_or_window
, event
->arg
)
4136 && (event
->kind
== MENU_BAR_EVENT
4137 || event
->kind
== TOOL_BAR_EVENT
))
4138 *used_mouse_menu
= 1;
4141 /* Wipe out this event, to catch bugs. */
4142 clear_event (event
);
4143 kbd_fetch_ptr
= event
+ 1;
4148 /* Try generating a mouse motion event. */
4149 else if (!NILP (do_mouse_tracking
) && some_mouse_moved ())
4151 FRAME_PTR f
= some_mouse_moved ();
4152 Lisp_Object bar_window
;
4153 enum scroll_bar_part part
;
4157 *kbp
= current_kboard
;
4158 /* Note that this uses F to determine which display to look at.
4159 If there is no valid info, it does not store anything
4160 so x remains nil. */
4162 (*mouse_position_hook
) (&f
, 0, &bar_window
, &part
, &x
, &y
, &time
);
4166 /* Decide if we should generate a switch-frame event. Don't
4167 generate switch-frame events for motion outside of all Emacs
4173 frame
= FRAME_FOCUS_FRAME (f
);
4175 XSETFRAME (frame
, f
);
4177 if (! EQ (frame
, internal_last_event_frame
)
4178 && !EQ (frame
, selected_frame
))
4179 obj
= make_lispy_switch_frame (frame
);
4180 internal_last_event_frame
= frame
;
4183 /* If we didn't decide to make a switch-frame event, go ahead and
4184 return a mouse-motion event. */
4185 if (!NILP (x
) && NILP (obj
))
4186 obj
= make_lispy_movement (f
, bar_window
, part
, x
, y
, time
);
4188 #endif /* HAVE_MOUSE */
4190 /* We were promised by the above while loop that there was
4191 something for us to read! */
4194 input_pending
= readable_events (0);
4196 Vlast_event_frame
= internal_last_event_frame
;
4201 /* Process any events that are not user-visible,
4202 then return, without reading any user-visible events. */
4205 swallow_events (do_display
)
4210 while (kbd_fetch_ptr
!= kbd_store_ptr
)
4212 struct input_event
*event
;
4214 event
= ((kbd_fetch_ptr
< kbd_buffer
+ KBD_BUFFER_SIZE
)
4218 last_event_timestamp
= event
->timestamp
;
4220 /* These two kinds of events get special handling
4221 and don't actually appear to the command loop. */
4222 if (event
->kind
== SELECTION_REQUEST_EVENT
4223 || event
->kind
== SELECTION_CLEAR_EVENT
)
4226 struct input_event copy
;
4228 /* Remove it from the buffer before processing it,
4229 since otherwise swallow_events called recursively could see it
4230 and process it again. */
4232 kbd_fetch_ptr
= event
+ 1;
4233 input_pending
= readable_events (0);
4234 x_handle_selection_event (©
);
4236 /* We're getting selection request events, but we don't have
4245 old_timers_run
= timers_run
;
4246 get_input_pending (&input_pending
, READABLE_EVENTS_DO_TIMERS_NOW
);
4248 if (timers_run
!= old_timers_run
&& do_display
)
4249 redisplay_preserve_echo_area (7);
4252 /* Record the start of when Emacs is idle,
4253 for the sake of running idle-time timers. */
4260 /* If we are already in the idle state, do nothing. */
4261 if (! EMACS_TIME_NEG_P (timer_idleness_start_time
))
4264 EMACS_GET_TIME (timer_idleness_start_time
);
4266 timer_last_idleness_start_time
= timer_idleness_start_time
;
4268 /* Mark all idle-time timers as once again candidates for running. */
4269 for (timers
= Vtimer_idle_list
; CONSP (timers
); timers
= XCDR (timers
))
4273 timer
= XCAR (timers
);
4275 if (!VECTORP (timer
) || XVECTOR (timer
)->size
!= 8)
4277 XVECTOR (timer
)->contents
[0] = Qnil
;
4281 /* Record that Emacs is no longer idle, so stop running idle-time timers. */
4286 EMACS_SET_SECS_USECS (timer_idleness_start_time
, -1, -1);
4289 /* Resume idle timer from last idle start time. */
4292 timer_resume_idle ()
4294 if (! EMACS_TIME_NEG_P (timer_idleness_start_time
))
4297 timer_idleness_start_time
= timer_last_idleness_start_time
;
4300 /* This is only for debugging. */
4301 struct input_event last_timer_event
;
4303 /* Check whether a timer has fired. To prevent larger problems we simply
4304 disregard elements that are not proper timers. Do not make a circular
4305 timer list for the time being.
4307 Returns the number of seconds to wait until the next timer fires. If a
4308 timer is triggering now, return zero seconds.
4309 If no timer is active, return -1 seconds.
4311 If a timer is ripe, we run it, with quitting turned off.
4313 DO_IT_NOW is now ignored. It used to mean that we should
4314 run the timer directly instead of queueing a timer-event.
4315 Now we always run timers directly. */
4318 timer_check (do_it_now
)
4321 EMACS_TIME nexttime
;
4322 EMACS_TIME now
, idleness_now
;
4323 Lisp_Object timers
, idle_timers
, chosen_timer
;
4324 struct gcpro gcpro1
, gcpro2
, gcpro3
;
4326 EMACS_SET_SECS (nexttime
, -1);
4327 EMACS_SET_USECS (nexttime
, -1);
4329 /* Always consider the ordinary timers. */
4330 timers
= Vtimer_list
;
4331 /* Consider the idle timers only if Emacs is idle. */
4332 if (! EMACS_TIME_NEG_P (timer_idleness_start_time
))
4333 idle_timers
= Vtimer_idle_list
;
4336 chosen_timer
= Qnil
;
4337 GCPRO3 (timers
, idle_timers
, chosen_timer
);
4339 if (CONSP (timers
) || CONSP (idle_timers
))
4341 EMACS_GET_TIME (now
);
4342 if (! EMACS_TIME_NEG_P (timer_idleness_start_time
))
4343 EMACS_SUB_TIME (idleness_now
, now
, timer_idleness_start_time
);
4346 while (CONSP (timers
) || CONSP (idle_timers
))
4348 Lisp_Object
*vector
;
4349 Lisp_Object timer
= Qnil
, idle_timer
= Qnil
;
4350 EMACS_TIME timer_time
, idle_timer_time
;
4351 EMACS_TIME difference
, timer_difference
, idle_timer_difference
;
4353 /* Skip past invalid timers and timers already handled. */
4356 timer
= XCAR (timers
);
4357 if (!VECTORP (timer
) || XVECTOR (timer
)->size
!= 8)
4359 timers
= XCDR (timers
);
4362 vector
= XVECTOR (timer
)->contents
;
4364 if (!INTEGERP (vector
[1]) || !INTEGERP (vector
[2])
4365 || !INTEGERP (vector
[3])
4366 || ! NILP (vector
[0]))
4368 timers
= XCDR (timers
);
4372 if (!NILP (idle_timers
))
4374 timer
= XCAR (idle_timers
);
4375 if (!VECTORP (timer
) || XVECTOR (timer
)->size
!= 8)
4377 idle_timers
= XCDR (idle_timers
);
4380 vector
= XVECTOR (timer
)->contents
;
4382 if (!INTEGERP (vector
[1]) || !INTEGERP (vector
[2])
4383 || !INTEGERP (vector
[3])
4384 || ! NILP (vector
[0]))
4386 idle_timers
= XCDR (idle_timers
);
4391 /* Set TIMER, TIMER_TIME and TIMER_DIFFERENCE
4392 based on the next ordinary timer.
4393 TIMER_DIFFERENCE is the distance in time from NOW to when
4394 this timer becomes ripe (negative if it's already ripe). */
4397 timer
= XCAR (timers
);
4398 vector
= XVECTOR (timer
)->contents
;
4399 EMACS_SET_SECS (timer_time
,
4400 (XINT (vector
[1]) << 16) | (XINT (vector
[2])));
4401 EMACS_SET_USECS (timer_time
, XINT (vector
[3]));
4402 EMACS_SUB_TIME (timer_difference
, timer_time
, now
);
4405 /* Set IDLE_TIMER, IDLE_TIMER_TIME and IDLE_TIMER_DIFFERENCE
4406 based on the next idle timer. */
4407 if (!NILP (idle_timers
))
4409 idle_timer
= XCAR (idle_timers
);
4410 vector
= XVECTOR (idle_timer
)->contents
;
4411 EMACS_SET_SECS (idle_timer_time
,
4412 (XINT (vector
[1]) << 16) | (XINT (vector
[2])));
4413 EMACS_SET_USECS (idle_timer_time
, XINT (vector
[3]));
4414 EMACS_SUB_TIME (idle_timer_difference
, idle_timer_time
, idleness_now
);
4417 /* Decide which timer is the next timer,
4418 and set CHOSEN_TIMER, VECTOR and DIFFERENCE accordingly.
4419 Also step down the list where we found that timer. */
4421 if (! NILP (timers
) && ! NILP (idle_timers
))
4424 EMACS_SUB_TIME (temp
, timer_difference
, idle_timer_difference
);
4425 if (EMACS_TIME_NEG_P (temp
))
4427 chosen_timer
= timer
;
4428 timers
= XCDR (timers
);
4429 difference
= timer_difference
;
4433 chosen_timer
= idle_timer
;
4434 idle_timers
= XCDR (idle_timers
);
4435 difference
= idle_timer_difference
;
4438 else if (! NILP (timers
))
4440 chosen_timer
= timer
;
4441 timers
= XCDR (timers
);
4442 difference
= timer_difference
;
4446 chosen_timer
= idle_timer
;
4447 idle_timers
= XCDR (idle_timers
);
4448 difference
= idle_timer_difference
;
4450 vector
= XVECTOR (chosen_timer
)->contents
;
4452 /* If timer is ripe, run it if it hasn't been run. */
4453 if (EMACS_TIME_NEG_P (difference
)
4454 || (EMACS_SECS (difference
) == 0
4455 && EMACS_USECS (difference
) == 0))
4457 if (NILP (vector
[0]))
4459 int was_locked
= single_kboard
;
4460 int count
= SPECPDL_INDEX ();
4461 Lisp_Object old_deactivate_mark
= Vdeactivate_mark
;
4463 /* Mark the timer as triggered to prevent problems if the lisp
4464 code fails to reschedule it right. */
4467 specbind (Qinhibit_quit
, Qt
);
4469 call1 (Qtimer_event_handler
, chosen_timer
);
4470 Vdeactivate_mark
= old_deactivate_mark
;
4472 unbind_to (count
, Qnil
);
4474 /* Resume allowing input from any kboard, if that was true before. */
4476 any_kboard_state ();
4478 /* Since we have handled the event,
4479 we don't need to tell the caller to wake up and do it. */
4483 /* When we encounter a timer that is still waiting,
4484 return the amount of time to wait before it is ripe. */
4491 /* No timers are pending in the future. */
4492 /* Return 0 if we generated an event, and -1 if not. */
4497 /* Caches for modify_event_symbol. */
4498 static Lisp_Object accent_key_syms
;
4499 static Lisp_Object func_key_syms
;
4500 static Lisp_Object mouse_syms
;
4501 static Lisp_Object wheel_syms
;
4502 static Lisp_Object drag_n_drop_syms
;
4504 /* This is a list of keysym codes for special "accent" characters.
4505 It parallels lispy_accent_keys. */
4507 static int lispy_accent_codes
[] =
4509 #ifdef XK_dead_circumflex
4514 #ifdef XK_dead_grave
4519 #ifdef XK_dead_tilde
4524 #ifdef XK_dead_diaeresis
4529 #ifdef XK_dead_macron
4534 #ifdef XK_dead_degree
4539 #ifdef XK_dead_acute
4544 #ifdef XK_dead_cedilla
4549 #ifdef XK_dead_breve
4554 #ifdef XK_dead_ogonek
4559 #ifdef XK_dead_caron
4564 #ifdef XK_dead_doubleacute
4565 XK_dead_doubleacute
,
4569 #ifdef XK_dead_abovedot
4574 #ifdef XK_dead_abovering
4584 #ifdef XK_dead_belowdot
4589 #ifdef XK_dead_voiced_sound
4590 XK_dead_voiced_sound
,
4594 #ifdef XK_dead_semivoiced_sound
4595 XK_dead_semivoiced_sound
,
4611 /* This is a list of Lisp names for special "accent" characters.
4612 It parallels lispy_accent_codes. */
4614 static char *lispy_accent_keys
[] =
4632 "dead-voiced-sound",
4633 "dead-semivoiced-sound",
4639 #define FUNCTION_KEY_OFFSET 0x0
4641 char *lispy_function_keys
[] =
4645 0, /* VK_LBUTTON 0x01 */
4646 0, /* VK_RBUTTON 0x02 */
4647 "cancel", /* VK_CANCEL 0x03 */
4648 0, /* VK_MBUTTON 0x04 */
4650 0, 0, 0, /* 0x05 .. 0x07 */
4652 "backspace", /* VK_BACK 0x08 */
4653 "tab", /* VK_TAB 0x09 */
4655 0, 0, /* 0x0A .. 0x0B */
4657 "clear", /* VK_CLEAR 0x0C */
4658 "return", /* VK_RETURN 0x0D */
4660 0, 0, /* 0x0E .. 0x0F */
4662 0, /* VK_SHIFT 0x10 */
4663 0, /* VK_CONTROL 0x11 */
4664 0, /* VK_MENU 0x12 */
4665 "pause", /* VK_PAUSE 0x13 */
4666 "capslock", /* VK_CAPITAL 0x14 */
4668 0, 0, 0, 0, 0, 0, /* 0x15 .. 0x1A */
4670 "escape", /* VK_ESCAPE 0x1B */
4672 0, 0, 0, 0, /* 0x1C .. 0x1F */
4674 0, /* VK_SPACE 0x20 */
4675 "prior", /* VK_PRIOR 0x21 */
4676 "next", /* VK_NEXT 0x22 */
4677 "end", /* VK_END 0x23 */
4678 "home", /* VK_HOME 0x24 */
4679 "left", /* VK_LEFT 0x25 */
4680 "up", /* VK_UP 0x26 */
4681 "right", /* VK_RIGHT 0x27 */
4682 "down", /* VK_DOWN 0x28 */
4683 "select", /* VK_SELECT 0x29 */
4684 "print", /* VK_PRINT 0x2A */
4685 "execute", /* VK_EXECUTE 0x2B */
4686 "snapshot", /* VK_SNAPSHOT 0x2C */
4687 "insert", /* VK_INSERT 0x2D */
4688 "delete", /* VK_DELETE 0x2E */
4689 "help", /* VK_HELP 0x2F */
4691 /* VK_0 thru VK_9 are the same as ASCII '0' thru '9' (0x30 - 0x39) */
4693 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
4695 0, 0, 0, 0, 0, 0, 0, /* 0x3A .. 0x40 */
4697 /* VK_A thru VK_Z are the same as ASCII 'A' thru 'Z' (0x41 - 0x5A) */
4699 0, 0, 0, 0, 0, 0, 0, 0, 0,
4700 0, 0, 0, 0, 0, 0, 0, 0, 0,
4701 0, 0, 0, 0, 0, 0, 0, 0,
4703 "lwindow", /* VK_LWIN 0x5B */
4704 "rwindow", /* VK_RWIN 0x5C */
4705 "apps", /* VK_APPS 0x5D */
4707 0, 0, /* 0x5E .. 0x5F */
4709 "kp-0", /* VK_NUMPAD0 0x60 */
4710 "kp-1", /* VK_NUMPAD1 0x61 */
4711 "kp-2", /* VK_NUMPAD2 0x62 */
4712 "kp-3", /* VK_NUMPAD3 0x63 */
4713 "kp-4", /* VK_NUMPAD4 0x64 */
4714 "kp-5", /* VK_NUMPAD5 0x65 */
4715 "kp-6", /* VK_NUMPAD6 0x66 */
4716 "kp-7", /* VK_NUMPAD7 0x67 */
4717 "kp-8", /* VK_NUMPAD8 0x68 */
4718 "kp-9", /* VK_NUMPAD9 0x69 */
4719 "kp-multiply", /* VK_MULTIPLY 0x6A */
4720 "kp-add", /* VK_ADD 0x6B */
4721 "kp-separator", /* VK_SEPARATOR 0x6C */
4722 "kp-subtract", /* VK_SUBTRACT 0x6D */
4723 "kp-decimal", /* VK_DECIMAL 0x6E */
4724 "kp-divide", /* VK_DIVIDE 0x6F */
4725 "f1", /* VK_F1 0x70 */
4726 "f2", /* VK_F2 0x71 */
4727 "f3", /* VK_F3 0x72 */
4728 "f4", /* VK_F4 0x73 */
4729 "f5", /* VK_F5 0x74 */
4730 "f6", /* VK_F6 0x75 */
4731 "f7", /* VK_F7 0x76 */
4732 "f8", /* VK_F8 0x77 */
4733 "f9", /* VK_F9 0x78 */
4734 "f10", /* VK_F10 0x79 */
4735 "f11", /* VK_F11 0x7A */
4736 "f12", /* VK_F12 0x7B */
4737 "f13", /* VK_F13 0x7C */
4738 "f14", /* VK_F14 0x7D */
4739 "f15", /* VK_F15 0x7E */
4740 "f16", /* VK_F16 0x7F */
4741 "f17", /* VK_F17 0x80 */
4742 "f18", /* VK_F18 0x81 */
4743 "f19", /* VK_F19 0x82 */
4744 "f20", /* VK_F20 0x83 */
4745 "f21", /* VK_F21 0x84 */
4746 "f22", /* VK_F22 0x85 */
4747 "f23", /* VK_F23 0x86 */
4748 "f24", /* VK_F24 0x87 */
4750 0, 0, 0, 0, /* 0x88 .. 0x8B */
4751 0, 0, 0, 0, /* 0x8C .. 0x8F */
4753 "kp-numlock", /* VK_NUMLOCK 0x90 */
4754 "scroll", /* VK_SCROLL 0x91 */
4756 "kp-space", /* VK_NUMPAD_CLEAR 0x92 */
4757 "kp-enter", /* VK_NUMPAD_ENTER 0x93 */
4758 "kp-prior", /* VK_NUMPAD_PRIOR 0x94 */
4759 "kp-next", /* VK_NUMPAD_NEXT 0x95 */
4760 "kp-end", /* VK_NUMPAD_END 0x96 */
4761 "kp-home", /* VK_NUMPAD_HOME 0x97 */
4762 "kp-left", /* VK_NUMPAD_LEFT 0x98 */
4763 "kp-up", /* VK_NUMPAD_UP 0x99 */
4764 "kp-right", /* VK_NUMPAD_RIGHT 0x9A */
4765 "kp-down", /* VK_NUMPAD_DOWN 0x9B */
4766 "kp-insert", /* VK_NUMPAD_INSERT 0x9C */
4767 "kp-delete", /* VK_NUMPAD_DELETE 0x9D */
4769 0, 0, /* 0x9E .. 0x9F */
4772 * VK_L* & VK_R* - left and right Alt, Ctrl and Shift virtual keys.
4773 * Used only as parameters to GetAsyncKeyState and GetKeyState.
4774 * No other API or message will distinguish left and right keys this way.
4778 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
4779 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
4780 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
4781 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
4782 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
4788 "attn", /* VK_ATTN 0xF6 */
4789 "crsel", /* VK_CRSEL 0xF7 */
4790 "exsel", /* VK_EXSEL 0xF8 */
4791 "ereof", /* VK_EREOF 0xF9 */
4792 "play", /* VK_PLAY 0xFA */
4793 "zoom", /* VK_ZOOM 0xFB */
4794 "noname", /* VK_NONAME 0xFC */
4795 "pa1", /* VK_PA1 0xFD */
4796 "oem_clear", /* VK_OEM_CLEAR 0xFE */
4800 #else /* not HAVE_NTGUI */
4802 /* This should be dealt with in XTread_socket now, and that doesn't
4803 depend on the client system having the Kana syms defined. See also
4804 the XK_kana_A case below. */
4807 static char *lispy_kana_keys
[] =
4809 /* X Keysym value */
4810 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x400 .. 0x40f */
4811 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x410 .. 0x41f */
4812 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x420 .. 0x42f */
4813 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x430 .. 0x43f */
4814 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x440 .. 0x44f */
4815 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x450 .. 0x45f */
4816 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x460 .. 0x46f */
4817 0,0,0,0,0,0,0,0,0,0,0,0,0,0,"overline",0,
4818 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x480 .. 0x48f */
4819 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x490 .. 0x49f */
4820 0, "kana-fullstop", "kana-openingbracket", "kana-closingbracket",
4821 "kana-comma", "kana-conjunctive", "kana-WO", "kana-a",
4822 "kana-i", "kana-u", "kana-e", "kana-o",
4823 "kana-ya", "kana-yu", "kana-yo", "kana-tsu",
4824 "prolongedsound", "kana-A", "kana-I", "kana-U",
4825 "kana-E", "kana-O", "kana-KA", "kana-KI",
4826 "kana-KU", "kana-KE", "kana-KO", "kana-SA",
4827 "kana-SHI", "kana-SU", "kana-SE", "kana-SO",
4828 "kana-TA", "kana-CHI", "kana-TSU", "kana-TE",
4829 "kana-TO", "kana-NA", "kana-NI", "kana-NU",
4830 "kana-NE", "kana-NO", "kana-HA", "kana-HI",
4831 "kana-FU", "kana-HE", "kana-HO", "kana-MA",
4832 "kana-MI", "kana-MU", "kana-ME", "kana-MO",
4833 "kana-YA", "kana-YU", "kana-YO", "kana-RA",
4834 "kana-RI", "kana-RU", "kana-RE", "kana-RO",
4835 "kana-WA", "kana-N", "voicedsound", "semivoicedsound",
4836 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x4e0 .. 0x4ef */
4837 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x4f0 .. 0x4ff */
4839 #endif /* XK_kana_A */
4842 #define FUNCTION_KEY_OFFSET 0xff00
4844 /* You'll notice that this table is arranged to be conveniently
4845 indexed by X Windows keysym values. */
4846 static char *lispy_function_keys
[] =
4848 /* X Keysym value */
4850 0, 0, 0, 0, 0, 0, 0, 0, /* 0xff00...0f */
4851 "backspace", "tab", "linefeed", "clear",
4853 0, 0, 0, "pause", /* 0xff10...1f */
4854 0, 0, 0, 0, 0, 0, 0, "escape",
4856 0, "kanji", "muhenkan", "henkan", /* 0xff20...2f */
4857 "romaji", "hiragana", "katakana", "hiragana-katakana",
4858 "zenkaku", "hankaku", "zenkaku-hankaku", "touroku",
4859 "massyo", "kana-lock", "kana-shift", "eisu-shift",
4860 "eisu-toggle", /* 0xff30...3f */
4861 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
4862 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* 0xff40...4f */
4864 "home", "left", "up", "right", /* 0xff50 */ /* IsCursorKey */
4865 "down", "prior", "next", "end",
4866 "begin", 0, 0, 0, 0, 0, 0, 0,
4867 "select", /* 0xff60 */ /* IsMiscFunctionKey */
4878 "break", /* 0xff6b */
4881 0, 0, 0, 0, "backtab", 0, 0, 0, /* 0xff70... */
4882 0, 0, 0, 0, 0, 0, 0, "kp-numlock", /* 0xff78... */
4883 "kp-space", /* 0xff80 */ /* IsKeypadKey */
4884 0, 0, 0, 0, 0, 0, 0, 0,
4885 "kp-tab", /* 0xff89 */
4887 "kp-enter", /* 0xff8d */
4889 "kp-f1", /* 0xff91 */
4893 "kp-home", /* 0xff95 */
4898 "kp-prior", /* kp-page-up */
4899 "kp-next", /* kp-page-down */
4905 0, 0, 0, 0, 0, 0, 0, 0, 0,
4906 "kp-multiply", /* 0xffaa */
4911 "kp-divide", /* 0xffaf */
4912 "kp-0", /* 0xffb0 */
4913 "kp-1", "kp-2", "kp-3", "kp-4", "kp-5", "kp-6", "kp-7", "kp-8", "kp-9",
4916 "kp-equal", /* 0xffbd */
4917 "f1", /* 0xffbe */ /* IsFunctionKey */
4919 "f3", "f4", "f5", "f6", "f7", "f8", "f9", "f10", /* 0xffc0 */
4920 "f11", "f12", "f13", "f14", "f15", "f16", "f17", "f18",
4921 "f19", "f20", "f21", "f22", "f23", "f24", "f25", "f26", /* 0xffd0 */
4922 "f27", "f28", "f29", "f30", "f31", "f32", "f33", "f34",
4923 "f35", 0, 0, 0, 0, 0, 0, 0, /* 0xffe0 */
4924 0, 0, 0, 0, 0, 0, 0, 0,
4925 0, 0, 0, 0, 0, 0, 0, 0, /* 0xfff0 */
4926 0, 0, 0, 0, 0, 0, 0, "delete"
4929 /* ISO 9995 Function and Modifier Keys; the first byte is 0xFE. */
4930 #define ISO_FUNCTION_KEY_OFFSET 0xfe00
4932 static char *iso_lispy_function_keys
[] =
4934 0, 0, 0, 0, 0, 0, 0, 0, /* 0xfe00 */
4935 0, 0, 0, 0, 0, 0, 0, 0, /* 0xfe08 */
4936 0, 0, 0, 0, 0, 0, 0, 0, /* 0xfe10 */
4937 0, 0, 0, 0, 0, 0, 0, 0, /* 0xfe18 */
4938 "iso-lefttab", /* 0xfe20 */
4939 "iso-move-line-up", "iso-move-line-down",
4940 "iso-partial-line-up", "iso-partial-line-down",
4941 "iso-partial-space-left", "iso-partial-space-right",
4942 "iso-set-margin-left", "iso-set-margin-right", /* 0xffe27, 28 */
4943 "iso-release-margin-left", "iso-release-margin-right",
4944 "iso-release-both-margins",
4945 "iso-fast-cursor-left", "iso-fast-cursor-right",
4946 "iso-fast-cursor-up", "iso-fast-cursor-down",
4947 "iso-continuous-underline", "iso-discontinuous-underline", /* 0xfe30, 31 */
4948 "iso-emphasize", "iso-center-object", "iso-enter", /* ... 0xfe34 */
4951 #endif /* not HAVE_NTGUI */
4953 Lisp_Object Vlispy_mouse_stem
;
4955 static char *lispy_wheel_names
[] =
4957 "wheel-up", "wheel-down"
4960 /* drag-n-drop events are generated when a set of selected files are
4961 dragged from another application and dropped onto an Emacs window. */
4962 static char *lispy_drag_n_drop_names
[] =
4967 /* Scroll bar parts. */
4968 Lisp_Object Qabove_handle
, Qhandle
, Qbelow_handle
;
4969 Lisp_Object Qup
, Qdown
, Qbottom
, Qend_scroll
;
4970 Lisp_Object Qtop
, Qratio
;
4972 /* An array of scroll bar parts, indexed by an enum scroll_bar_part value. */
4973 Lisp_Object
*scroll_bar_parts
[] = {
4974 &Qabove_handle
, &Qhandle
, &Qbelow_handle
,
4975 &Qup
, &Qdown
, &Qtop
, &Qbottom
, &Qend_scroll
, &Qratio
4978 /* User signal events. */
4979 Lisp_Object Qusr1_signal
, Qusr2_signal
;
4981 Lisp_Object
*lispy_user_signals
[] =
4983 &Qusr1_signal
, &Qusr2_signal
4987 /* A vector, indexed by button number, giving the down-going location
4988 of currently depressed buttons, both scroll bar and non-scroll bar.
4990 The elements have the form
4991 (BUTTON-NUMBER MODIFIER-MASK . REST)
4992 where REST is the cdr of a position as it would be reported in the event.
4994 The make_lispy_event function stores positions here to tell the
4995 difference between click and drag events, and to store the starting
4996 location to be included in drag events. */
4998 static Lisp_Object button_down_location
;
5000 /* Information about the most recent up-going button event: Which
5001 button, what location, and what time. */
5003 static int last_mouse_button
;
5004 static int last_mouse_x
;
5005 static int last_mouse_y
;
5006 static unsigned long button_down_time
;
5008 /* The maximum time between clicks to make a double-click, or Qnil to
5009 disable double-click detection, or Qt for no time limit. */
5011 Lisp_Object Vdouble_click_time
;
5013 /* Maximum number of pixels the mouse may be moved between clicks
5014 to make a double-click. */
5016 EMACS_INT double_click_fuzz
;
5018 /* The number of clicks in this multiple-click. */
5020 int double_click_count
;
5022 /* Return position of a mouse click or wheel event */
5025 make_lispy_position (f
, x
, y
, time
)
5031 enum window_part part
;
5032 Lisp_Object posn
= Qnil
;
5033 Lisp_Object extra_info
= Qnil
;
5036 /* Set `window' to the window under frame pixel coordinates (x,y) */
5038 window
= window_from_coordinates (f
, XINT (*x
), XINT (*y
),
5039 &part
, &wx
, &wy
, 0);
5043 if (WINDOWP (window
))
5045 /* It's a click in window window at frame coordinates (x,y) */
5046 struct window
*w
= XWINDOW (window
);
5047 Lisp_Object string_info
= Qnil
;
5048 int textpos
= -1, rx
= -1, ry
= -1;
5049 int dx
= -1, dy
= -1;
5050 int width
= -1, height
= -1;
5051 Lisp_Object object
= Qnil
;
5053 /* Set event coordinates to window-relative coordinates
5054 for constructing the Lisp event below. */
5058 if (part
== ON_TEXT
)
5060 wx
+= WINDOW_LEFT_MARGIN_WIDTH (w
);
5062 else if (part
== ON_MODE_LINE
|| part
== ON_HEADER_LINE
)
5064 /* Mode line or header line. Look for a string under
5065 the mouse that may have a `local-map' property. */
5069 posn
= part
== ON_MODE_LINE
? Qmode_line
: Qheader_line
;
5071 string
= mode_line_string (w
, part
, &rx
, &ry
, &charpos
,
5072 &object
, &dx
, &dy
, &width
, &height
);
5073 if (STRINGP (string
))
5074 string_info
= Fcons (string
, make_number (charpos
));
5075 if (w
== XWINDOW (selected_window
))
5078 textpos
= XMARKER (w
->pointm
)->charpos
;
5080 else if (part
== ON_VERTICAL_BORDER
)
5082 posn
= Qvertical_line
;
5087 else if (part
== ON_LEFT_MARGIN
|| part
== ON_RIGHT_MARGIN
)
5092 posn
= (part
== ON_LEFT_MARGIN
) ? Qleft_margin
: Qright_margin
;
5094 string
= marginal_area_string (w
, part
, &rx
, &ry
, &charpos
,
5095 &object
, &dx
, &dy
, &width
, &height
);
5096 if (STRINGP (string
))
5097 string_info
= Fcons (string
, make_number (charpos
));
5098 if (part
== ON_LEFT_MARGIN
)
5101 wx
= window_box_right_offset (w
, TEXT_AREA
) - 1;
5103 else if (part
== ON_LEFT_FRINGE
)
5105 posn
= Qleft_fringe
;
5108 wx
= (WINDOW_HAS_FRINGES_OUTSIDE_MARGINS (w
)
5110 : window_box_width (w
, LEFT_MARGIN_AREA
));
5113 else if (part
== ON_RIGHT_FRINGE
)
5115 posn
= Qright_fringe
;
5118 wx
= (window_box_width (w
, LEFT_MARGIN_AREA
)
5119 + window_box_width (w
, TEXT_AREA
)
5120 + (WINDOW_HAS_FRINGES_OUTSIDE_MARGINS (w
)
5121 ? window_box_width (w
, RIGHT_MARGIN_AREA
)
5127 /* Note: We have no special posn for part == ON_SCROLL_BAR. */
5128 wx
= max (WINDOW_LEFT_MARGIN_WIDTH (w
), wx
);
5133 Lisp_Object string2
, object2
= Qnil
;
5134 struct display_pos p
;
5136 int width2
, height2
;
5137 string2
= buffer_posn_from_coords (w
, &wx
, &wy
, &p
,
5138 &object2
, &dx2
, &dy2
,
5140 textpos
= CHARPOS (p
.pos
);
5141 if (rx
< 0) rx
= wx
;
5142 if (ry
< 0) ry
= wy
;
5143 if (dx
< 0) dx
= dx2
;
5144 if (dy
< 0) dy
= dy2
;
5145 if (width
< 0) width
= width2
;
5146 if (height
< 0) height
= height2
;
5150 posn
= make_number (textpos
);
5151 if (STRINGP (string2
))
5152 string_info
= Fcons (string2
,
5153 make_number (CHARPOS (p
.string_pos
)));
5159 #ifdef HAVE_WINDOW_SYSTEM
5160 if (IMAGEP (object
))
5162 Lisp_Object image_map
, hotspot
;
5163 if ((image_map
= Fplist_get (XCDR (object
), QCmap
),
5165 && (hotspot
= find_hot_spot (image_map
, dx
, dy
),
5167 && (hotspot
= XCDR (hotspot
), CONSP (hotspot
)))
5168 posn
= XCAR (hotspot
);
5173 extra_info
= Fcons (object
,
5174 Fcons (Fcons (make_number (dx
),
5176 Fcons (Fcons (make_number (width
),
5177 make_number (height
)),
5181 extra_info
= Fcons (string_info
,
5182 Fcons (make_number (textpos
),
5183 Fcons (Fcons (make_number (rx
),
5189 XSETFRAME (window
, f
);
5194 XSETFASTINT (*x
, 0);
5195 XSETFASTINT (*y
, 0);
5198 return Fcons (window
,
5200 Fcons (Fcons (*x
, *y
),
5201 Fcons (make_number (time
),
5205 /* Given a struct input_event, build the lisp event which represents
5206 it. If EVENT is 0, build a mouse movement event from the mouse
5207 movement buffer, which should have a movement event in it.
5209 Note that events must be passed to this function in the order they
5210 are received; this function stores the location of button presses
5211 in order to build drag events when the button is released. */
5214 make_lispy_event (event
)
5215 struct input_event
*event
;
5219 switch (SWITCH_ENUM_CAST (event
->kind
))
5221 /* A simple keystroke. */
5222 case ASCII_KEYSTROKE_EVENT
:
5224 Lisp_Object lispy_c
;
5225 int c
= event
->code
& 0377;
5226 /* Turn ASCII characters into control characters
5228 if (event
->modifiers
& ctrl_modifier
)
5229 c
= make_ctrl_char (c
);
5231 /* Add in the other modifier bits. We took care of ctrl_modifier
5232 just above, and the shift key was taken care of by the X code,
5233 and applied to control characters by make_ctrl_char. */
5234 c
|= (event
->modifiers
5235 & (meta_modifier
| alt_modifier
5236 | hyper_modifier
| super_modifier
));
5237 /* Distinguish Shift-SPC from SPC. */
5238 if ((event
->code
& 0377) == 040
5239 && event
->modifiers
& shift_modifier
)
5240 c
|= shift_modifier
;
5241 button_down_time
= 0;
5242 XSETFASTINT (lispy_c
, c
);
5246 case MULTIBYTE_CHAR_KEYSTROKE_EVENT
:
5248 Lisp_Object lispy_c
;
5249 int c
= event
->code
;
5251 /* Add in the other modifier bits. We took care of ctrl_modifier
5252 just above, and the shift key was taken care of by the X code,
5253 and applied to control characters by make_ctrl_char. */
5254 c
|= (event
->modifiers
5255 & (meta_modifier
| alt_modifier
5256 | hyper_modifier
| super_modifier
| ctrl_modifier
));
5257 /* What about the `shift' modifier ? */
5258 button_down_time
= 0;
5259 XSETFASTINT (lispy_c
, c
);
5263 /* A function key. The symbol may need to have modifier prefixes
5265 case NON_ASCII_KEYSTROKE_EVENT
:
5266 button_down_time
= 0;
5268 for (i
= 0; i
< sizeof (lispy_accent_codes
) / sizeof (int); i
++)
5269 if (event
->code
== lispy_accent_codes
[i
])
5270 return modify_event_symbol (i
,
5272 Qfunction_key
, Qnil
,
5273 lispy_accent_keys
, &accent_key_syms
,
5274 (sizeof (lispy_accent_keys
)
5275 / sizeof (lispy_accent_keys
[0])));
5279 if (event
->code
>= 0x400 && event
->code
< 0x500)
5280 return modify_event_symbol (event
->code
- 0x400,
5281 event
->modifiers
& ~shift_modifier
,
5282 Qfunction_key
, Qnil
,
5283 lispy_kana_keys
, &func_key_syms
,
5284 (sizeof (lispy_kana_keys
)
5285 / sizeof (lispy_kana_keys
[0])));
5286 #endif /* XK_kana_A */
5289 #ifdef ISO_FUNCTION_KEY_OFFSET
5290 if (event
->code
< FUNCTION_KEY_OFFSET
5291 && event
->code
>= ISO_FUNCTION_KEY_OFFSET
)
5292 return modify_event_symbol (event
->code
- ISO_FUNCTION_KEY_OFFSET
,
5294 Qfunction_key
, Qnil
,
5295 iso_lispy_function_keys
, &func_key_syms
,
5296 (sizeof (iso_lispy_function_keys
)
5297 / sizeof (iso_lispy_function_keys
[0])));
5300 /* Handle system-specific or unknown keysyms. */
5301 if (event
->code
& (1 << 28)
5302 || event
->code
- FUNCTION_KEY_OFFSET
< 0
5303 || (event
->code
- FUNCTION_KEY_OFFSET
5304 >= sizeof lispy_function_keys
/ sizeof *lispy_function_keys
)
5305 || !lispy_function_keys
[event
->code
- FUNCTION_KEY_OFFSET
])
5307 /* We need to use an alist rather than a vector as the cache
5308 since we can't make a vector long enuf. */
5309 if (NILP (current_kboard
->system_key_syms
))
5310 current_kboard
->system_key_syms
= Fcons (Qnil
, Qnil
);
5311 return modify_event_symbol (event
->code
,
5314 current_kboard
->Vsystem_key_alist
,
5315 0, ¤t_kboard
->system_key_syms
,
5319 return modify_event_symbol (event
->code
- FUNCTION_KEY_OFFSET
,
5321 Qfunction_key
, Qnil
,
5322 lispy_function_keys
, &func_key_syms
,
5323 (sizeof (lispy_function_keys
)
5324 / sizeof (lispy_function_keys
[0])));
5327 /* A mouse click. Figure out where it is, decide whether it's
5328 a press, click or drag, and build the appropriate structure. */
5329 case MOUSE_CLICK_EVENT
:
5330 #ifndef USE_TOOLKIT_SCROLL_BARS
5331 case SCROLL_BAR_CLICK_EVENT
:
5334 int button
= event
->code
;
5336 Lisp_Object position
;
5337 Lisp_Object
*start_pos_ptr
;
5338 Lisp_Object start_pos
;
5342 /* Build the position as appropriate for this mouse click. */
5343 if (event
->kind
== MOUSE_CLICK_EVENT
)
5345 struct frame
*f
= XFRAME (event
->frame_or_window
);
5346 #if ! defined (USE_X_TOOLKIT) && ! defined (USE_GTK)
5350 /* Ignore mouse events that were made on frame that
5351 have been deleted. */
5352 if (! FRAME_LIVE_P (f
))
5355 #if ! defined (USE_X_TOOLKIT) && ! defined (USE_GTK)
5356 /* EVENT->x and EVENT->y are frame-relative pixel
5357 coordinates at this place. Under old redisplay, COLUMN
5358 and ROW are set to frame relative glyph coordinates
5359 which are then used to determine whether this click is
5360 in a menu (non-toolkit version). */
5361 pixel_to_glyph_coords (f
, XINT (event
->x
), XINT (event
->y
),
5362 &column
, &row
, NULL
, 1);
5364 /* In the non-toolkit version, clicks on the menu bar
5365 are ordinary button events in the event buffer.
5366 Distinguish them, and invoke the menu.
5368 (In the toolkit version, the toolkit handles the menu bar
5369 and Emacs doesn't know about it until after the user
5370 makes a selection.) */
5371 if (row
>= 0 && row
< FRAME_MENU_BAR_LINES (f
)
5372 && (event
->modifiers
& down_modifier
))
5374 Lisp_Object items
, item
;
5379 /* Activate the menu bar on the down event. If the
5380 up event comes in before the menu code can deal with it,
5382 if (! (event
->modifiers
& down_modifier
))
5386 /* Find the menu bar item under `column'. */
5388 items
= FRAME_MENU_BAR_ITEMS (f
);
5389 for (i
= 0; i
< XVECTOR (items
)->size
; i
+= 4)
5391 Lisp_Object pos
, string
;
5392 string
= AREF (items
, i
+ 1);
5393 pos
= AREF (items
, i
+ 3);
5396 if (column
>= XINT (pos
)
5397 && column
< XINT (pos
) + SCHARS (string
))
5399 item
= AREF (items
, i
);
5404 /* ELisp manual 2.4b says (x y) are window relative but
5405 code says they are frame-relative. */
5407 = Fcons (event
->frame_or_window
,
5409 Fcons (Fcons (event
->x
, event
->y
),
5410 Fcons (make_number (event
->timestamp
),
5413 return Fcons (item
, Fcons (position
, Qnil
));
5415 #endif /* not USE_X_TOOLKIT && not USE_GTK */
5417 position
= make_lispy_position (f
, &event
->x
, &event
->y
,
5420 #ifndef USE_TOOLKIT_SCROLL_BARS
5423 /* It's a scrollbar click. */
5425 Lisp_Object portion_whole
;
5428 window
= event
->frame_or_window
;
5429 portion_whole
= Fcons (event
->x
, event
->y
);
5430 part
= *scroll_bar_parts
[(int) event
->part
];
5434 Fcons (Qvertical_scroll_bar
,
5435 Fcons (portion_whole
,
5436 Fcons (make_number (event
->timestamp
),
5437 Fcons (part
, Qnil
)))));
5439 #endif /* not USE_TOOLKIT_SCROLL_BARS */
5441 if (button
>= ASIZE (button_down_location
))
5443 button_down_location
= larger_vector (button_down_location
,
5445 mouse_syms
= larger_vector (mouse_syms
, button
+ 1, Qnil
);
5448 start_pos_ptr
= &AREF (button_down_location
, button
);
5449 start_pos
= *start_pos_ptr
;
5450 *start_pos_ptr
= Qnil
;
5453 /* On window-system frames, use the value of
5454 double-click-fuzz as is. On other frames, interpret it
5455 as a multiple of 1/8 characters. */
5459 if (WINDOWP (event
->frame_or_window
))
5460 f
= XFRAME (XWINDOW (event
->frame_or_window
)->frame
);
5461 else if (FRAMEP (event
->frame_or_window
))
5462 f
= XFRAME (event
->frame_or_window
);
5466 if (FRAME_WINDOW_P (f
))
5467 fuzz
= double_click_fuzz
;
5469 fuzz
= double_click_fuzz
/ 8;
5471 is_double
= (button
== last_mouse_button
5472 && (abs (XINT (event
->x
) - last_mouse_x
) <= fuzz
)
5473 && (abs (XINT (event
->y
) - last_mouse_y
) <= fuzz
)
5474 && button_down_time
!= 0
5475 && (EQ (Vdouble_click_time
, Qt
)
5476 || (INTEGERP (Vdouble_click_time
)
5477 && ((int)(event
->timestamp
- button_down_time
)
5478 < XINT (Vdouble_click_time
)))));
5481 last_mouse_button
= button
;
5482 last_mouse_x
= XINT (event
->x
);
5483 last_mouse_y
= XINT (event
->y
);
5485 /* If this is a button press, squirrel away the location, so
5486 we can decide later whether it was a click or a drag. */
5487 if (event
->modifiers
& down_modifier
)
5491 double_click_count
++;
5492 event
->modifiers
|= ((double_click_count
> 2)
5497 double_click_count
= 1;
5498 button_down_time
= event
->timestamp
;
5499 *start_pos_ptr
= Fcopy_alist (position
);
5502 /* Now we're releasing a button - check the co-ordinates to
5503 see if this was a click or a drag. */
5504 else if (event
->modifiers
& up_modifier
)
5506 /* If we did not see a down before this up, ignore the up.
5507 Probably this happened because the down event chose a
5508 menu item. It would be an annoyance to treat the
5509 release of the button that chose the menu item as a
5512 if (!CONSP (start_pos
))
5515 event
->modifiers
&= ~up_modifier
;
5516 #if 0 /* Formerly we treated an up with no down as a click event. */
5517 if (!CONSP (start_pos
))
5518 event
->modifiers
|= click_modifier
;
5523 EMACS_INT xdiff
= double_click_fuzz
, ydiff
= double_click_fuzz
;
5525 /* The third element of every position
5526 should be the (x,y) pair. */
5527 down
= Fcar (Fcdr (Fcdr (start_pos
)));
5529 && INTEGERP (XCAR (down
)) && INTEGERP (XCDR (down
)))
5531 xdiff
= XINT (event
->x
) - XINT (XCAR (down
));
5532 ydiff
= XINT (event
->y
) - XINT (XCDR (down
));
5535 if (xdiff
< double_click_fuzz
&& xdiff
> - double_click_fuzz
5536 && ydiff
< double_click_fuzz
&& ydiff
> - double_click_fuzz
5537 /* Maybe the mouse has moved a lot, caused scrolling, and
5538 eventually ended up at the same screen position (but
5539 not buffer position) in which case it is a drag, not
5541 /* FIXME: OTOH if the buffer position has changed
5542 because of a timer or process filter rather than
5543 because of mouse movement, it should be considered as
5544 a click. But mouse-drag-region completely ignores
5545 this case and it hasn't caused any real problem, so
5546 it's probably OK to ignore it as well. */
5547 && EQ (Fcar (Fcdr (start_pos
)), Fcar (Fcdr (position
))))
5548 /* Mouse hasn't moved (much). */
5549 event
->modifiers
|= click_modifier
;
5552 button_down_time
= 0;
5553 event
->modifiers
|= drag_modifier
;
5556 /* Don't check is_double; treat this as multiple
5557 if the down-event was multiple. */
5558 if (double_click_count
> 1)
5559 event
->modifiers
|= ((double_click_count
> 2)
5565 /* Every mouse event should either have the down_modifier or
5566 the up_modifier set. */
5570 /* Get the symbol we should use for the mouse click. */
5573 head
= modify_event_symbol (button
,
5575 Qmouse_click
, Vlispy_mouse_stem
,
5578 XVECTOR (mouse_syms
)->size
);
5579 if (event
->modifiers
& drag_modifier
)
5584 else if (event
->modifiers
& (double_modifier
| triple_modifier
))
5587 Fcons (make_number (double_click_count
),
5598 Lisp_Object position
;
5601 /* Build the position as appropriate for this mouse click. */
5602 struct frame
*f
= XFRAME (event
->frame_or_window
);
5604 /* Ignore wheel events that were made on frame that have been
5606 if (! FRAME_LIVE_P (f
))
5609 position
= make_lispy_position (f
, &event
->x
, &event
->y
,
5612 /* Set double or triple modifiers to indicate the wheel speed. */
5614 /* On window-system frames, use the value of
5615 double-click-fuzz as is. On other frames, interpret it
5616 as a multiple of 1/8 characters. */
5621 if (WINDOWP (event
->frame_or_window
))
5622 f
= XFRAME (XWINDOW (event
->frame_or_window
)->frame
);
5623 else if (FRAMEP (event
->frame_or_window
))
5624 f
= XFRAME (event
->frame_or_window
);
5628 if (FRAME_WINDOW_P (f
))
5629 fuzz
= double_click_fuzz
;
5631 fuzz
= double_click_fuzz
/ 8;
5633 is_double
= (last_mouse_button
< 0
5634 && (abs (XINT (event
->x
) - last_mouse_x
) <= fuzz
)
5635 && (abs (XINT (event
->y
) - last_mouse_y
) <= fuzz
)
5636 && button_down_time
!= 0
5637 && (EQ (Vdouble_click_time
, Qt
)
5638 || (INTEGERP (Vdouble_click_time
)
5639 && ((int)(event
->timestamp
- button_down_time
)
5640 < XINT (Vdouble_click_time
)))));
5643 double_click_count
++;
5644 event
->modifiers
|= ((double_click_count
> 2)
5650 double_click_count
= 1;
5651 event
->modifiers
|= click_modifier
;
5654 button_down_time
= event
->timestamp
;
5655 /* Use a negative value to distinguish wheel from mouse button. */
5656 last_mouse_button
= -1;
5657 last_mouse_x
= XINT (event
->x
);
5658 last_mouse_y
= XINT (event
->y
);
5664 if (event
->modifiers
& up_modifier
)
5666 /* Emit a wheel-up event. */
5667 event
->modifiers
&= ~up_modifier
;
5670 else if (event
->modifiers
& down_modifier
)
5672 /* Emit a wheel-down event. */
5673 event
->modifiers
&= ~down_modifier
;
5677 /* Every wheel event should either have the down_modifier or
5678 the up_modifier set. */
5681 /* Get the symbol we should use for the wheel event. */
5682 head
= modify_event_symbol (symbol_num
,
5688 ASIZE (wheel_syms
));
5691 if (event
->modifiers
& (double_modifier
| triple_modifier
))
5694 Fcons (make_number (double_click_count
),
5703 #ifdef USE_TOOLKIT_SCROLL_BARS
5705 /* We don't have down and up events if using toolkit scroll bars,
5706 so make this always a click event. Store in the `part' of
5707 the Lisp event a symbol which maps to the following actions:
5709 `above_handle' page up
5710 `below_handle' page down
5714 `bottom' bottom of buffer
5715 `handle' thumb has been dragged.
5716 `end-scroll' end of interaction with scroll bar
5718 The incoming input_event contains in its `part' member an
5719 index of type `enum scroll_bar_part' which we can use as an
5720 index in scroll_bar_parts to get the appropriate symbol. */
5722 case SCROLL_BAR_CLICK_EVENT
:
5724 Lisp_Object position
, head
, window
, portion_whole
, part
;
5726 window
= event
->frame_or_window
;
5727 portion_whole
= Fcons (event
->x
, event
->y
);
5728 part
= *scroll_bar_parts
[(int) event
->part
];
5732 Fcons (Qvertical_scroll_bar
,
5733 Fcons (portion_whole
,
5734 Fcons (make_number (event
->timestamp
),
5735 Fcons (part
, Qnil
)))));
5737 /* Always treat scroll bar events as clicks. */
5738 event
->modifiers
|= click_modifier
;
5739 event
->modifiers
&= ~up_modifier
;
5741 if (event
->code
>= ASIZE (mouse_syms
))
5742 mouse_syms
= larger_vector (mouse_syms
, event
->code
+ 1, Qnil
);
5744 /* Get the symbol we should use for the mouse click. */
5745 head
= modify_event_symbol (event
->code
,
5750 XVECTOR (mouse_syms
)->size
);
5751 return Fcons (head
, Fcons (position
, Qnil
));
5754 #endif /* USE_TOOLKIT_SCROLL_BARS */
5757 case W32_SCROLL_BAR_CLICK_EVENT
:
5759 int button
= event
->code
;
5761 Lisp_Object position
;
5762 Lisp_Object
*start_pos_ptr
;
5763 Lisp_Object start_pos
;
5767 Lisp_Object portion_whole
;
5770 window
= event
->frame_or_window
;
5771 portion_whole
= Fcons (event
->x
, event
->y
);
5772 part
= *scroll_bar_parts
[(int) event
->part
];
5776 Fcons (Qvertical_scroll_bar
,
5777 Fcons (portion_whole
,
5778 Fcons (make_number (event
->timestamp
),
5779 Fcons (part
, Qnil
)))));
5782 /* Always treat W32 scroll bar events as clicks. */
5783 event
->modifiers
|= click_modifier
;
5786 /* Get the symbol we should use for the mouse click. */
5789 head
= modify_event_symbol (button
,
5794 XVECTOR (mouse_syms
)->size
);
5800 #endif /* WINDOWSNT */
5802 case DRAG_N_DROP_EVENT
:
5805 Lisp_Object head
, position
;
5808 /* The frame_or_window field should be a cons of the frame in
5809 which the event occurred and a list of the filenames
5811 if (! CONSP (event
->frame_or_window
))
5814 f
= XFRAME (XCAR (event
->frame_or_window
));
5815 files
= XCDR (event
->frame_or_window
);
5817 /* Ignore mouse events that were made on frames that
5818 have been deleted. */
5819 if (! FRAME_LIVE_P (f
))
5822 position
= make_lispy_position (f
, &event
->x
, &event
->y
,
5825 head
= modify_event_symbol (0, event
->modifiers
,
5827 lispy_drag_n_drop_names
,
5828 &drag_n_drop_syms
, 1);
5834 #endif /* HAVE_MOUSE */
5836 #if defined (USE_X_TOOLKIT) || defined (HAVE_NTGUI) || defined (MAC_OS) \
5837 || defined (USE_GTK)
5838 case MENU_BAR_EVENT
:
5839 if (EQ (event
->arg
, event
->frame_or_window
))
5840 /* This is the prefix key. We translate this to
5841 `(menu_bar)' because the code in keyboard.c for menu
5842 events, which we use, relies on this. */
5843 return Fcons (Qmenu_bar
, Qnil
);
5847 case SELECT_WINDOW_EVENT
:
5848 /* Make an event (select-window (WINDOW)). */
5849 return Fcons (Qselect_window
,
5850 Fcons (Fcons (event
->frame_or_window
, Qnil
),
5853 case TOOL_BAR_EVENT
:
5854 if (EQ (event
->arg
, event
->frame_or_window
))
5855 /* This is the prefix key. We translate this to
5856 `(tool_bar)' because the code in keyboard.c for tool bar
5857 events, which we use, relies on this. */
5858 return Fcons (Qtool_bar
, Qnil
);
5859 else if (SYMBOLP (event
->arg
))
5860 return apply_modifiers (event
->modifiers
, event
->arg
);
5863 case USER_SIGNAL_EVENT
:
5864 /* A user signal. */
5865 return *lispy_user_signals
[event
->code
];
5867 case SAVE_SESSION_EVENT
:
5868 return Qsave_session
;
5871 case MAC_APPLE_EVENT
:
5873 Lisp_Object spec
[2];
5877 return Fcons (Qmac_apple_event
,
5878 Fcons (Fvector (2, spec
),
5879 Fcons (mac_make_lispy_event_code (event
->code
),
5884 /* The 'kind' field of the event is something we don't recognize. */
5893 make_lispy_movement (frame
, bar_window
, part
, x
, y
, time
)
5895 Lisp_Object bar_window
;
5896 enum scroll_bar_part part
;
5900 /* Is it a scroll bar movement? */
5901 if (frame
&& ! NILP (bar_window
))
5903 Lisp_Object part_sym
;
5905 part_sym
= *scroll_bar_parts
[(int) part
];
5906 return Fcons (Qscroll_bar_movement
,
5907 (Fcons (Fcons (bar_window
,
5908 Fcons (Qvertical_scroll_bar
,
5909 Fcons (Fcons (x
, y
),
5910 Fcons (make_number (time
),
5916 /* Or is it an ordinary mouse movement? */
5919 Lisp_Object position
;
5921 position
= make_lispy_position (frame
, &x
, &y
, time
);
5923 return Fcons (Qmouse_movement
,
5929 #endif /* HAVE_MOUSE */
5931 /* Construct a switch frame event. */
5933 make_lispy_switch_frame (frame
)
5936 return Fcons (Qswitch_frame
, Fcons (frame
, Qnil
));
5939 /* Manipulating modifiers. */
5941 /* Parse the name of SYMBOL, and return the set of modifiers it contains.
5943 If MODIFIER_END is non-zero, set *MODIFIER_END to the position in
5944 SYMBOL's name of the end of the modifiers; the string from this
5945 position is the unmodified symbol name.
5947 This doesn't use any caches. */
5950 parse_modifiers_uncached (symbol
, modifier_end
)
5958 CHECK_SYMBOL (symbol
);
5961 name
= SYMBOL_NAME (symbol
);
5963 for (i
= 0; i
+2 <= SBYTES (name
); )
5965 int this_mod_end
= 0;
5968 /* See if the name continues with a modifier word.
5969 Check that the word appears, but don't check what follows it.
5970 Set this_mod and this_mod_end to record what we find. */
5972 switch (SREF (name
, i
))
5974 #define SINGLE_LETTER_MOD(BIT) \
5975 (this_mod_end = i + 1, this_mod = BIT)
5978 SINGLE_LETTER_MOD (alt_modifier
);
5982 SINGLE_LETTER_MOD (ctrl_modifier
);
5986 SINGLE_LETTER_MOD (hyper_modifier
);
5990 SINGLE_LETTER_MOD (meta_modifier
);
5994 SINGLE_LETTER_MOD (shift_modifier
);
5998 SINGLE_LETTER_MOD (super_modifier
);
6001 #undef SINGLE_LETTER_MOD
6003 #define MULTI_LETTER_MOD(BIT, NAME, LEN) \
6004 if (i + LEN + 1 <= SBYTES (name) \
6005 && ! strncmp (SDATA (name) + i, NAME, LEN)) \
6007 this_mod_end = i + LEN; \
6012 MULTI_LETTER_MOD (drag_modifier
, "drag", 4);
6013 MULTI_LETTER_MOD (down_modifier
, "down", 4);
6014 MULTI_LETTER_MOD (double_modifier
, "double", 6);
6018 MULTI_LETTER_MOD (triple_modifier
, "triple", 6);
6020 #undef MULTI_LETTER_MOD
6024 /* If we found no modifier, stop looking for them. */
6025 if (this_mod_end
== 0)
6028 /* Check there is a dash after the modifier, so that it
6029 really is a modifier. */
6030 if (this_mod_end
>= SBYTES (name
)
6031 || SREF (name
, this_mod_end
) != '-')
6034 /* This modifier is real; look for another. */
6035 modifiers
|= this_mod
;
6036 i
= this_mod_end
+ 1;
6039 /* Should we include the `click' modifier? */
6040 if (! (modifiers
& (down_modifier
| drag_modifier
6041 | double_modifier
| triple_modifier
))
6042 && i
+ 7 == SBYTES (name
)
6043 && strncmp (SDATA (name
) + i
, "mouse-", 6) == 0
6044 && ('0' <= SREF (name
, i
+ 6) && SREF (name
, i
+ 6) <= '9'))
6045 modifiers
|= click_modifier
;
6053 /* Return a symbol whose name is the modifier prefixes for MODIFIERS
6054 prepended to the string BASE[0..BASE_LEN-1].
6055 This doesn't use any caches. */
6057 apply_modifiers_uncached (modifiers
, base
, base_len
, base_len_byte
)
6060 int base_len
, base_len_byte
;
6062 /* Since BASE could contain nulls, we can't use intern here; we have
6063 to use Fintern, which expects a genuine Lisp_String, and keeps a
6066 = (char *) alloca (sizeof ("A-C-H-M-S-s-down-drag-double-triple-"));
6072 /* Only the event queue may use the `up' modifier; it should always
6073 be turned into a click or drag event before presented to lisp code. */
6074 if (modifiers
& up_modifier
)
6077 if (modifiers
& alt_modifier
) { *p
++ = 'A'; *p
++ = '-'; }
6078 if (modifiers
& ctrl_modifier
) { *p
++ = 'C'; *p
++ = '-'; }
6079 if (modifiers
& hyper_modifier
) { *p
++ = 'H'; *p
++ = '-'; }
6080 if (modifiers
& meta_modifier
) { *p
++ = 'M'; *p
++ = '-'; }
6081 if (modifiers
& shift_modifier
) { *p
++ = 'S'; *p
++ = '-'; }
6082 if (modifiers
& super_modifier
) { *p
++ = 's'; *p
++ = '-'; }
6083 if (modifiers
& double_modifier
) { strcpy (p
, "double-"); p
+= 7; }
6084 if (modifiers
& triple_modifier
) { strcpy (p
, "triple-"); p
+= 7; }
6085 if (modifiers
& down_modifier
) { strcpy (p
, "down-"); p
+= 5; }
6086 if (modifiers
& drag_modifier
) { strcpy (p
, "drag-"); p
+= 5; }
6087 /* The click modifier is denoted by the absence of other modifiers. */
6091 mod_len
= p
- new_mods
;
6095 Lisp_Object new_name
;
6097 new_name
= make_uninit_multibyte_string (mod_len
+ base_len
,
6098 mod_len
+ base_len_byte
);
6099 bcopy (new_mods
, SDATA (new_name
), mod_len
);
6100 bcopy (base
, SDATA (new_name
) + mod_len
, base_len_byte
);
6102 return Fintern (new_name
, Qnil
);
6107 static char *modifier_names
[] =
6109 "up", "down", "drag", "click", "double", "triple", 0, 0,
6110 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
6111 0, 0, "alt", "super", "hyper", "shift", "control", "meta"
6113 #define NUM_MOD_NAMES (sizeof (modifier_names) / sizeof (modifier_names[0]))
6115 static Lisp_Object modifier_symbols
;
6117 /* Return the list of modifier symbols corresponding to the mask MODIFIERS. */
6119 lispy_modifier_list (modifiers
)
6122 Lisp_Object modifier_list
;
6125 modifier_list
= Qnil
;
6126 for (i
= 0; (1<<i
) <= modifiers
&& i
< NUM_MOD_NAMES
; i
++)
6127 if (modifiers
& (1<<i
))
6128 modifier_list
= Fcons (XVECTOR (modifier_symbols
)->contents
[i
],
6131 return modifier_list
;
6135 /* Parse the modifiers on SYMBOL, and return a list like (UNMODIFIED MASK),
6136 where UNMODIFIED is the unmodified form of SYMBOL,
6137 MASK is the set of modifiers present in SYMBOL's name.
6138 This is similar to parse_modifiers_uncached, but uses the cache in
6139 SYMBOL's Qevent_symbol_element_mask property, and maintains the
6140 Qevent_symbol_elements property. */
6143 parse_modifiers (symbol
)
6146 Lisp_Object elements
;
6148 elements
= Fget (symbol
, Qevent_symbol_element_mask
);
6149 if (CONSP (elements
))
6154 int modifiers
= parse_modifiers_uncached (symbol
, &end
);
6155 Lisp_Object unmodified
;
6158 unmodified
= Fintern (make_string (SDATA (SYMBOL_NAME (symbol
)) + end
,
6159 SBYTES (SYMBOL_NAME (symbol
)) - end
),
6162 if (modifiers
& ~INTMASK
)
6164 XSETFASTINT (mask
, modifiers
);
6165 elements
= Fcons (unmodified
, Fcons (mask
, Qnil
));
6167 /* Cache the parsing results on SYMBOL. */
6168 Fput (symbol
, Qevent_symbol_element_mask
,
6170 Fput (symbol
, Qevent_symbol_elements
,
6171 Fcons (unmodified
, lispy_modifier_list (modifiers
)));
6173 /* Since we know that SYMBOL is modifiers applied to unmodified,
6174 it would be nice to put that in unmodified's cache.
6175 But we can't, since we're not sure that parse_modifiers is
6182 /* Apply the modifiers MODIFIERS to the symbol BASE.
6183 BASE must be unmodified.
6185 This is like apply_modifiers_uncached, but uses BASE's
6186 Qmodifier_cache property, if present. It also builds
6187 Qevent_symbol_elements properties, since it has that info anyway.
6189 apply_modifiers copies the value of BASE's Qevent_kind property to
6190 the modified symbol. */
6192 apply_modifiers (modifiers
, base
)
6196 Lisp_Object cache
, index
, entry
, new_symbol
;
6198 /* Mask out upper bits. We don't know where this value's been. */
6199 modifiers
&= INTMASK
;
6201 /* The click modifier never figures into cache indices. */
6202 cache
= Fget (base
, Qmodifier_cache
);
6203 XSETFASTINT (index
, (modifiers
& ~click_modifier
));
6204 entry
= assq_no_quit (index
, cache
);
6207 new_symbol
= XCDR (entry
);
6210 /* We have to create the symbol ourselves. */
6211 new_symbol
= apply_modifiers_uncached (modifiers
,
6212 SDATA (SYMBOL_NAME (base
)),
6213 SCHARS (SYMBOL_NAME (base
)),
6214 SBYTES (SYMBOL_NAME (base
)));
6216 /* Add the new symbol to the base's cache. */
6217 entry
= Fcons (index
, new_symbol
);
6218 Fput (base
, Qmodifier_cache
, Fcons (entry
, cache
));
6220 /* We have the parsing info now for free, so we could add it to
6222 XSETFASTINT (index, modifiers);
6223 Fput (new_symbol, Qevent_symbol_element_mask,
6224 Fcons (base, Fcons (index, Qnil)));
6225 Fput (new_symbol, Qevent_symbol_elements,
6226 Fcons (base, lispy_modifier_list (modifiers)));
6227 Sadly, this is only correct if `base' is indeed a base event,
6228 which is not necessarily the case. -stef */
6231 /* Make sure this symbol is of the same kind as BASE.
6233 You'd think we could just set this once and for all when we
6234 intern the symbol above, but reorder_modifiers may call us when
6235 BASE's property isn't set right; we can't assume that just
6236 because it has a Qmodifier_cache property it must have its
6237 Qevent_kind set right as well. */
6238 if (NILP (Fget (new_symbol
, Qevent_kind
)))
6242 kind
= Fget (base
, Qevent_kind
);
6244 Fput (new_symbol
, Qevent_kind
, kind
);
6251 /* Given a symbol whose name begins with modifiers ("C-", "M-", etc),
6252 return a symbol with the modifiers placed in the canonical order.
6253 Canonical order is alphabetical, except for down and drag, which
6254 always come last. The 'click' modifier is never written out.
6256 Fdefine_key calls this to make sure that (for example) C-M-foo
6257 and M-C-foo end up being equivalent in the keymap. */
6260 reorder_modifiers (symbol
)
6263 /* It's hopefully okay to write the code this way, since everything
6264 will soon be in caches, and no consing will be done at all. */
6267 parsed
= parse_modifiers (symbol
);
6268 return apply_modifiers ((int) XINT (XCAR (XCDR (parsed
))),
6273 /* For handling events, we often want to produce a symbol whose name
6274 is a series of modifier key prefixes ("M-", "C-", etcetera) attached
6275 to some base, like the name of a function key or mouse button.
6276 modify_event_symbol produces symbols of this sort.
6278 NAME_TABLE should point to an array of strings, such that NAME_TABLE[i]
6279 is the name of the i'th symbol. TABLE_SIZE is the number of elements
6282 Alternatively, NAME_ALIST_OR_STEM is either an alist mapping codes
6283 into symbol names, or a string specifying a name stem used to
6284 construct a symbol name or the form `STEM-N', where N is the decimal
6285 representation of SYMBOL_NUM. NAME_ALIST_OR_STEM is used if it is
6286 non-nil; otherwise NAME_TABLE is used.
6288 SYMBOL_TABLE should be a pointer to a Lisp_Object whose value will
6289 persist between calls to modify_event_symbol that it can use to
6290 store a cache of the symbols it's generated for this NAME_TABLE
6291 before. The object stored there may be a vector or an alist.
6293 SYMBOL_NUM is the number of the base name we want from NAME_TABLE.
6295 MODIFIERS is a set of modifier bits (as given in struct input_events)
6296 whose prefixes should be applied to the symbol name.
6298 SYMBOL_KIND is the value to be placed in the event_kind property of
6299 the returned symbol.
6301 The symbols we create are supposed to have an
6302 `event-symbol-elements' property, which lists the modifiers present
6303 in the symbol's name. */
6306 modify_event_symbol (symbol_num
, modifiers
, symbol_kind
, name_alist_or_stem
,
6307 name_table
, symbol_table
, table_size
)
6310 Lisp_Object symbol_kind
;
6311 Lisp_Object name_alist_or_stem
;
6313 Lisp_Object
*symbol_table
;
6314 unsigned int table_size
;
6317 Lisp_Object symbol_int
;
6319 /* Get rid of the "vendor-specific" bit here. */
6320 XSETINT (symbol_int
, symbol_num
& 0xffffff);
6322 /* Is this a request for a valid symbol? */
6323 if (symbol_num
< 0 || symbol_num
>= table_size
)
6326 if (CONSP (*symbol_table
))
6327 value
= Fcdr (assq_no_quit (symbol_int
, *symbol_table
));
6329 /* If *symbol_table doesn't seem to be initialized properly, fix that.
6330 *symbol_table should be a lisp vector TABLE_SIZE elements long,
6331 where the Nth element is the symbol for NAME_TABLE[N], or nil if
6332 we've never used that symbol before. */
6335 if (! VECTORP (*symbol_table
)
6336 || XVECTOR (*symbol_table
)->size
!= table_size
)
6340 XSETFASTINT (size
, table_size
);
6341 *symbol_table
= Fmake_vector (size
, Qnil
);
6344 value
= XVECTOR (*symbol_table
)->contents
[symbol_num
];
6347 /* Have we already used this symbol before? */
6350 /* No; let's create it. */
6351 if (CONSP (name_alist_or_stem
))
6352 value
= Fcdr_safe (Fassq (symbol_int
, name_alist_or_stem
));
6353 else if (STRINGP (name_alist_or_stem
))
6355 int len
= SBYTES (name_alist_or_stem
);
6356 char *buf
= (char *) alloca (len
+ 50);
6357 sprintf (buf
, "%s-%ld", SDATA (name_alist_or_stem
),
6358 (long) XINT (symbol_int
) + 1);
6359 value
= intern (buf
);
6361 else if (name_table
!= 0 && name_table
[symbol_num
])
6362 value
= intern (name_table
[symbol_num
]);
6364 #ifdef HAVE_WINDOW_SYSTEM
6367 char *name
= x_get_keysym_name (symbol_num
);
6369 value
= intern (name
);
6376 sprintf (buf
, "key-%d", symbol_num
);
6377 value
= intern (buf
);
6380 if (CONSP (*symbol_table
))
6381 *symbol_table
= Fcons (Fcons (symbol_int
, value
), *symbol_table
);
6383 XVECTOR (*symbol_table
)->contents
[symbol_num
] = value
;
6385 /* Fill in the cache entries for this symbol; this also
6386 builds the Qevent_symbol_elements property, which the user
6388 apply_modifiers (modifiers
& click_modifier
, value
);
6389 Fput (value
, Qevent_kind
, symbol_kind
);
6392 /* Apply modifiers to that symbol. */
6393 return apply_modifiers (modifiers
, value
);
6396 /* Convert a list that represents an event type,
6397 such as (ctrl meta backspace), into the usual representation of that
6398 event type as a number or a symbol. */
6400 DEFUN ("event-convert-list", Fevent_convert_list
, Sevent_convert_list
, 1, 1, 0,
6401 doc
: /* Convert the event description list EVENT-DESC to an event type.
6402 EVENT-DESC should contain one base event type (a character or symbol)
6403 and zero or more modifier names (control, meta, hyper, super, shift, alt,
6404 drag, down, double or triple). The base must be last.
6405 The return value is an event type (a character or symbol) which
6406 has the same base event type and all the specified modifiers. */)
6408 Lisp_Object event_desc
;
6416 while (CONSP (rest
))
6424 /* Given a symbol, see if it is a modifier name. */
6425 if (SYMBOLP (elt
) && CONSP (rest
))
6426 this = parse_solitary_modifier (elt
);
6430 else if (!NILP (base
))
6431 error ("Two bases given in one event");
6437 /* Let the symbol A refer to the character A. */
6438 if (SYMBOLP (base
) && SCHARS (SYMBOL_NAME (base
)) == 1)
6439 XSETINT (base
, SREF (SYMBOL_NAME (base
), 0));
6441 if (INTEGERP (base
))
6443 /* Turn (shift a) into A. */
6444 if ((modifiers
& shift_modifier
) != 0
6445 && (XINT (base
) >= 'a' && XINT (base
) <= 'z'))
6447 XSETINT (base
, XINT (base
) - ('a' - 'A'));
6448 modifiers
&= ~shift_modifier
;
6451 /* Turn (control a) into C-a. */
6452 if (modifiers
& ctrl_modifier
)
6453 return make_number ((modifiers
& ~ctrl_modifier
)
6454 | make_ctrl_char (XINT (base
)));
6456 return make_number (modifiers
| XINT (base
));
6458 else if (SYMBOLP (base
))
6459 return apply_modifiers (modifiers
, base
);
6462 error ("Invalid base event");
6467 /* Try to recognize SYMBOL as a modifier name.
6468 Return the modifier flag bit, or 0 if not recognized. */
6471 parse_solitary_modifier (symbol
)
6474 Lisp_Object name
= SYMBOL_NAME (symbol
);
6476 switch (SREF (name
, 0))
6478 #define SINGLE_LETTER_MOD(BIT) \
6479 if (SBYTES (name) == 1) \
6482 #define MULTI_LETTER_MOD(BIT, NAME, LEN) \
6483 if (LEN == SBYTES (name) \
6484 && ! strncmp (SDATA (name), NAME, LEN)) \
6488 SINGLE_LETTER_MOD (alt_modifier
);
6492 MULTI_LETTER_MOD (alt_modifier
, "alt", 3);
6496 SINGLE_LETTER_MOD (ctrl_modifier
);
6500 MULTI_LETTER_MOD (ctrl_modifier
, "ctrl", 4);
6501 MULTI_LETTER_MOD (ctrl_modifier
, "control", 7);
6505 SINGLE_LETTER_MOD (hyper_modifier
);
6509 MULTI_LETTER_MOD (hyper_modifier
, "hyper", 5);
6513 SINGLE_LETTER_MOD (meta_modifier
);
6517 MULTI_LETTER_MOD (meta_modifier
, "meta", 4);
6521 SINGLE_LETTER_MOD (shift_modifier
);
6525 MULTI_LETTER_MOD (shift_modifier
, "shift", 5);
6526 MULTI_LETTER_MOD (super_modifier
, "super", 5);
6527 SINGLE_LETTER_MOD (super_modifier
);
6531 MULTI_LETTER_MOD (drag_modifier
, "drag", 4);
6532 MULTI_LETTER_MOD (down_modifier
, "down", 4);
6533 MULTI_LETTER_MOD (double_modifier
, "double", 6);
6537 MULTI_LETTER_MOD (triple_modifier
, "triple", 6);
6540 #undef SINGLE_LETTER_MOD
6541 #undef MULTI_LETTER_MOD
6547 /* Return 1 if EVENT is a list whose elements are all integers or symbols.
6548 Such a list is not valid as an event,
6549 but it can be a Lucid-style event type list. */
6552 lucid_event_type_list_p (object
)
6557 if (! CONSP (object
))
6560 if (EQ (XCAR (object
), Qhelp_echo
)
6561 || EQ (XCAR (object
), Qvertical_line
)
6562 || EQ (XCAR (object
), Qmode_line
)
6563 || EQ (XCAR (object
), Qheader_line
))
6566 for (tail
= object
; CONSP (tail
); tail
= XCDR (tail
))
6570 if (! (INTEGERP (elt
) || SYMBOLP (elt
)))
6577 /* Store into *addr a value nonzero if terminal input chars are available.
6578 Serves the purpose of ioctl (0, FIONREAD, addr)
6579 but works even if FIONREAD does not exist.
6580 (In fact, this may actually read some input.)
6582 If READABLE_EVENTS_DO_TIMERS_NOW is set in FLAGS, actually run
6583 timer events that are ripe.
6584 If READABLE_EVENTS_FILTER_EVENTS is set in FLAGS, ignore internal
6585 events (FOCUS_IN_EVENT).
6586 If READABLE_EVENTS_IGNORE_SQUEEZABLES is set in FLAGS, ignore mouse
6587 movements and toolkit scroll bar thumb drags. */
6590 get_input_pending (addr
, flags
)
6594 /* First of all, have we already counted some input? */
6595 *addr
= (!NILP (Vquit_flag
) || readable_events (flags
));
6597 /* If input is being read as it arrives, and we have none, there is none. */
6598 if (*addr
> 0 || (interrupt_input
&& ! interrupts_deferred
))
6601 /* Try to read some input and see how much we get. */
6603 *addr
= (!NILP (Vquit_flag
) || readable_events (flags
));
6606 /* Interface to read_avail_input, blocking SIGIO or SIGALRM if necessary. */
6609 gobble_input (expected
)
6614 if (interrupt_input
)
6617 mask
= sigblock (sigmask (SIGIO
));
6618 read_avail_input (expected
);
6622 #ifdef POLL_FOR_INPUT
6623 if (read_socket_hook
&& !interrupt_input
&& poll_suppress_count
== 0)
6626 mask
= sigblock (sigmask (SIGALRM
));
6627 read_avail_input (expected
);
6633 read_avail_input (expected
);
6637 /* Put a BUFFER_SWITCH_EVENT in the buffer
6638 so that read_key_sequence will notice the new current buffer. */
6641 record_asynch_buffer_change ()
6643 struct input_event event
;
6647 event
.kind
= BUFFER_SWITCH_EVENT
;
6648 event
.frame_or_window
= Qnil
;
6652 /* We don't need a buffer-switch event unless Emacs is waiting for input.
6653 The purpose of the event is to make read_key_sequence look up the
6654 keymaps again. If we aren't in read_key_sequence, we don't need one,
6655 and the event could cause trouble by messing up (input-pending-p). */
6656 tem
= Fwaiting_for_user_input_p ();
6660 /* We never need these events if we have no asynchronous subprocesses. */
6664 /* Make sure no interrupt happens while storing the event. */
6666 if (interrupt_input
)
6669 mask
= sigblock (sigmask (SIGIO
));
6670 kbd_buffer_store_event (&event
);
6677 kbd_buffer_store_event (&event
);
6684 /* Read any terminal input already buffered up by the system
6685 into the kbd_buffer, but do not wait.
6687 EXPECTED should be nonzero if the caller knows there is some input.
6689 Except on VMS, all input is read by this function.
6690 If interrupt_input is nonzero, this function MUST be called
6691 only when SIGIO is blocked.
6693 Returns the number of keyboard chars read, or -1 meaning
6694 this is a bad time to try to read input. */
6697 read_avail_input (expected
)
6703 if (read_socket_hook
)
6706 struct input_event hold_quit
;
6708 EVENT_INIT (hold_quit
);
6709 hold_quit
.kind
= NO_EVENT
;
6711 /* No need for FIONREAD or fcntl; just say don't wait. */
6712 while (nr
= (*read_socket_hook
) (input_fd
, expected
, &hold_quit
), nr
> 0)
6717 if (hold_quit
.kind
!= NO_EVENT
)
6718 kbd_buffer_store_event (&hold_quit
);
6722 /* Using KBD_BUFFER_SIZE - 1 here avoids reading more than
6723 the kbd_buffer can really hold. That may prevent loss
6724 of characters on some systems when input is stuffed at us. */
6725 unsigned char cbuf
[KBD_BUFFER_SIZE
- 1];
6728 /* Determine how many characters we should *try* to read. */
6731 #else /* not WINDOWSNT */
6733 n_to_read
= dos_keysns ();
6736 #else /* not MSDOS */
6738 /* Find out how much input is available. */
6739 if (ioctl (input_fd
, FIONREAD
, &n_to_read
) < 0)
6740 /* Formerly simply reported no input, but that sometimes led to
6741 a failure of Emacs to terminate.
6742 SIGHUP seems appropriate if we can't reach the terminal. */
6743 /* ??? Is it really right to send the signal just to this process
6744 rather than to the whole process group?
6745 Perhaps on systems with FIONREAD Emacs is alone in its group. */
6747 if (! noninteractive
)
6748 kill (getpid (), SIGHUP
);
6754 if (n_to_read
> sizeof cbuf
)
6755 n_to_read
= sizeof cbuf
;
6756 #else /* no FIONREAD */
6757 #if defined (USG) || defined (DGUX) || defined(CYGWIN)
6758 /* Read some input if available, but don't wait. */
6759 n_to_read
= sizeof cbuf
;
6760 fcntl (input_fd
, F_SETFL
, O_NDELAY
);
6765 #endif /* not MSDOS */
6766 #endif /* not WINDOWSNT */
6768 /* Now read; for one reason or another, this will not block.
6769 NREAD is set to the number of chars read. */
6773 cbuf
[0] = dos_keyread ();
6776 nread
= emacs_read (input_fd
, cbuf
, n_to_read
);
6778 /* POSIX infers that processes which are not in the session leader's
6779 process group won't get SIGHUP's at logout time. BSDI adheres to
6780 this part standard and returns -1 from read (0) with errno==EIO
6781 when the control tty is taken away.
6782 Jeffrey Honig <jch@bsdi.com> says this is generally safe. */
6783 if (nread
== -1 && errno
== EIO
)
6785 #if defined (AIX) && (! defined (aix386) && defined (_BSD))
6786 /* The kernel sometimes fails to deliver SIGHUP for ptys.
6787 This looks incorrect, but it isn't, because _BSD causes
6788 O_NDELAY to be defined in fcntl.h as O_NONBLOCK,
6789 and that causes a value other than 0 when there is no input. */
6795 /* We used to retry the read if it was interrupted.
6796 But this does the wrong thing when O_NDELAY causes
6797 an EAGAIN error. Does anybody know of a situation
6798 where a retry is actually needed? */
6800 nread
< 0 && (errno
== EAGAIN
6814 #if defined (USG) || defined (DGUX) || defined (CYGWIN)
6815 fcntl (input_fd
, F_SETFL
, 0);
6816 #endif /* USG or DGUX or CYGWIN */
6817 #endif /* no FIONREAD */
6818 for (i
= 0; i
< nread
; i
++)
6820 struct input_event buf
;
6822 buf
.kind
= ASCII_KEYSTROKE_EVENT
;
6824 if (meta_key
== 1 && (cbuf
[i
] & 0x80))
6825 buf
.modifiers
= meta_modifier
;
6830 buf
.frame_or_window
= selected_frame
;
6833 kbd_buffer_store_event (&buf
);
6834 /* Don't look at input that follows a C-g too closely.
6835 This reduces lossage due to autorepeat on C-g. */
6836 if (buf
.kind
== ASCII_KEYSTROKE_EVENT
6837 && buf
.code
== quit_char
)
6844 #endif /* not VMS */
6847 handle_async_input ()
6850 extern int select_alarmed
;
6853 interrupt_input_pending
= 0;
6858 nread
= read_avail_input (1);
6859 /* -1 means it's not ok to read the input now.
6860 UNBLOCK_INPUT will read it later; now, avoid infinite loop.
6861 0 means there was no keyboard input available. */
6866 select_alarmed
= 1; /* Force the select emulator back to life */
6871 #ifdef SIGIO /* for entire page */
6872 /* Note SIGIO has been undef'd if FIONREAD is missing. */
6875 input_available_signal (signo
)
6878 /* Must preserve main program's value of errno. */
6879 int old_errno
= errno
;
6880 #if defined (USG) && !defined (POSIX_SIGNALS)
6881 /* USG systems forget handlers when they are used;
6882 must reestablish each time */
6883 signal (signo
, input_available_signal
);
6891 interrupt_input_pending
= 1;
6893 SIGNAL_THREAD_CHECK (signo
);
6896 if (input_available_clear_time
)
6897 EMACS_SET_SECS_USECS (*input_available_clear_time
, 0, 0);
6900 handle_async_input ();
6910 /* Send ourselves a SIGIO.
6912 This function exists so that the UNBLOCK_INPUT macro in
6913 blockinput.h can have some way to take care of input we put off
6914 dealing with, without assuming that every file which uses
6915 UNBLOCK_INPUT also has #included the files necessary to get SIGIO. */
6917 reinvoke_input_signal ()
6920 handle_async_input ();
6926 static void menu_bar_item
P_ ((Lisp_Object
, Lisp_Object
, Lisp_Object
, void*));
6927 static Lisp_Object menu_bar_one_keymap_changed_items
;
6929 /* These variables hold the vector under construction within
6930 menu_bar_items and its subroutines, and the current index
6931 for storing into that vector. */
6932 static Lisp_Object menu_bar_items_vector
;
6933 static int menu_bar_items_index
;
6935 /* Return a vector of menu items for a menu bar, appropriate
6936 to the current buffer. Each item has three elements in the vector:
6939 OLD is an old vector we can optionally reuse, or nil. */
6942 menu_bar_items (old
)
6945 /* The number of keymaps we're scanning right now, and the number of
6946 keymaps we have allocated space for. */
6949 /* maps[0..nmaps-1] are the prefix definitions of KEYBUF[0..t-1]
6950 in the current keymaps, or nil where it is not a prefix. */
6953 Lisp_Object def
, tail
;
6962 /* In order to build the menus, we need to call the keymap
6963 accessors. They all call QUIT. But this function is called
6964 during redisplay, during which a quit is fatal. So inhibit
6965 quitting while building the menus.
6966 We do this instead of specbind because (1) errors will clear it anyway
6967 and (2) this avoids risk of specpdl overflow. */
6968 oquit
= Vinhibit_quit
;
6972 menu_bar_items_vector
= old
;
6974 menu_bar_items_vector
= Fmake_vector (make_number (24), Qnil
);
6975 menu_bar_items_index
= 0;
6977 /* Build our list of keymaps.
6978 If we recognize a function key and replace its escape sequence in
6979 keybuf with its symbol, or if the sequence starts with a mouse
6980 click and we need to switch buffers, we jump back here to rebuild
6981 the initial keymaps from the current buffer. */
6985 /* Should overriding-terminal-local-map and overriding-local-map apply? */
6986 if (!NILP (Voverriding_local_map_menu_flag
))
6988 /* Yes, use them (if non-nil) as well as the global map. */
6989 maps
= (Lisp_Object
*) alloca (3 * sizeof (maps
[0]));
6991 if (!NILP (current_kboard
->Voverriding_terminal_local_map
))
6992 maps
[nmaps
++] = current_kboard
->Voverriding_terminal_local_map
;
6993 if (!NILP (Voverriding_local_map
))
6994 maps
[nmaps
++] = Voverriding_local_map
;
6998 /* No, so use major and minor mode keymaps and keymap property.
6999 Note that menu-bar bindings in the local-map and keymap
7000 properties may not work reliable, as they are only
7001 recognized when the menu-bar (or mode-line) is updated,
7002 which does not normally happen after every command. */
7005 nminor
= current_minor_maps (NULL
, &tmaps
);
7006 maps
= (Lisp_Object
*) alloca ((nminor
+ 3) * sizeof (maps
[0]));
7008 if (tem
= get_local_map (PT
, current_buffer
, Qkeymap
), !NILP (tem
))
7009 maps
[nmaps
++] = tem
;
7010 bcopy (tmaps
, (void *) (maps
+ nmaps
), nminor
* sizeof (maps
[0]));
7012 maps
[nmaps
++] = get_local_map (PT
, current_buffer
, Qlocal_map
);
7014 maps
[nmaps
++] = current_global_map
;
7017 /* Look up in each map the dummy prefix key `menu-bar'. */
7021 for (mapno
= nmaps
- 1; mapno
>= 0; mapno
--)
7022 if (!NILP (maps
[mapno
]))
7024 def
= get_keymap (access_keymap (maps
[mapno
], Qmenu_bar
, 1, 0, 1),
7028 menu_bar_one_keymap_changed_items
= Qnil
;
7029 map_keymap (def
, menu_bar_item
, Qnil
, NULL
, 1);
7033 /* Move to the end those items that should be at the end. */
7035 for (tail
= Vmenu_bar_final_items
; CONSP (tail
); tail
= XCDR (tail
))
7038 int end
= menu_bar_items_index
;
7040 for (i
= 0; i
< end
; i
+= 4)
7041 if (EQ (XCAR (tail
), XVECTOR (menu_bar_items_vector
)->contents
[i
]))
7043 Lisp_Object tem0
, tem1
, tem2
, tem3
;
7044 /* Move the item at index I to the end,
7045 shifting all the others forward. */
7046 tem0
= XVECTOR (menu_bar_items_vector
)->contents
[i
+ 0];
7047 tem1
= XVECTOR (menu_bar_items_vector
)->contents
[i
+ 1];
7048 tem2
= XVECTOR (menu_bar_items_vector
)->contents
[i
+ 2];
7049 tem3
= XVECTOR (menu_bar_items_vector
)->contents
[i
+ 3];
7051 bcopy (&XVECTOR (menu_bar_items_vector
)->contents
[i
+ 4],
7052 &XVECTOR (menu_bar_items_vector
)->contents
[i
],
7053 (end
- i
- 4) * sizeof (Lisp_Object
));
7054 XVECTOR (menu_bar_items_vector
)->contents
[end
- 4] = tem0
;
7055 XVECTOR (menu_bar_items_vector
)->contents
[end
- 3] = tem1
;
7056 XVECTOR (menu_bar_items_vector
)->contents
[end
- 2] = tem2
;
7057 XVECTOR (menu_bar_items_vector
)->contents
[end
- 1] = tem3
;
7062 /* Add nil, nil, nil, nil at the end. */
7063 i
= menu_bar_items_index
;
7064 if (i
+ 4 > XVECTOR (menu_bar_items_vector
)->size
)
7067 tem
= Fmake_vector (make_number (2 * i
), Qnil
);
7068 bcopy (XVECTOR (menu_bar_items_vector
)->contents
,
7069 XVECTOR (tem
)->contents
, i
* sizeof (Lisp_Object
));
7070 menu_bar_items_vector
= tem
;
7072 /* Add this item. */
7073 XVECTOR (menu_bar_items_vector
)->contents
[i
++] = Qnil
;
7074 XVECTOR (menu_bar_items_vector
)->contents
[i
++] = Qnil
;
7075 XVECTOR (menu_bar_items_vector
)->contents
[i
++] = Qnil
;
7076 XVECTOR (menu_bar_items_vector
)->contents
[i
++] = Qnil
;
7077 menu_bar_items_index
= i
;
7079 Vinhibit_quit
= oquit
;
7080 return menu_bar_items_vector
;
7083 /* Add one item to menu_bar_items_vector, for KEY, ITEM_STRING and DEF.
7084 If there's already an item for KEY, add this DEF to it. */
7086 Lisp_Object item_properties
;
7089 menu_bar_item (key
, item
, dummy1
, dummy2
)
7090 Lisp_Object key
, item
, dummy1
;
7093 struct gcpro gcpro1
;
7097 if (EQ (item
, Qundefined
))
7099 /* If a map has an explicit `undefined' as definition,
7100 discard any previously made menu bar item. */
7102 for (i
= 0; i
< menu_bar_items_index
; i
+= 4)
7103 if (EQ (key
, XVECTOR (menu_bar_items_vector
)->contents
[i
]))
7105 if (menu_bar_items_index
> i
+ 4)
7106 bcopy (&XVECTOR (menu_bar_items_vector
)->contents
[i
+ 4],
7107 &XVECTOR (menu_bar_items_vector
)->contents
[i
],
7108 (menu_bar_items_index
- i
- 4) * sizeof (Lisp_Object
));
7109 menu_bar_items_index
-= 4;
7113 /* If this keymap has already contributed to this KEY,
7114 don't contribute to it a second time. */
7115 tem
= Fmemq (key
, menu_bar_one_keymap_changed_items
);
7116 if (!NILP (tem
) || NILP (item
))
7119 menu_bar_one_keymap_changed_items
7120 = Fcons (key
, menu_bar_one_keymap_changed_items
);
7122 /* We add to menu_bar_one_keymap_changed_items before doing the
7123 parse_menu_item, so that if it turns out it wasn't a menu item,
7124 it still correctly hides any further menu item. */
7126 i
= parse_menu_item (item
, 0, 1);
7131 item
= XVECTOR (item_properties
)->contents
[ITEM_PROPERTY_DEF
];
7133 /* Find any existing item for this KEY. */
7134 for (i
= 0; i
< menu_bar_items_index
; i
+= 4)
7135 if (EQ (key
, XVECTOR (menu_bar_items_vector
)->contents
[i
]))
7138 /* If we did not find this KEY, add it at the end. */
7139 if (i
== menu_bar_items_index
)
7141 /* If vector is too small, get a bigger one. */
7142 if (i
+ 4 > XVECTOR (menu_bar_items_vector
)->size
)
7145 tem
= Fmake_vector (make_number (2 * i
), Qnil
);
7146 bcopy (XVECTOR (menu_bar_items_vector
)->contents
,
7147 XVECTOR (tem
)->contents
, i
* sizeof (Lisp_Object
));
7148 menu_bar_items_vector
= tem
;
7151 /* Add this item. */
7152 XVECTOR (menu_bar_items_vector
)->contents
[i
++] = key
;
7153 XVECTOR (menu_bar_items_vector
)->contents
[i
++]
7154 = XVECTOR (item_properties
)->contents
[ITEM_PROPERTY_NAME
];
7155 XVECTOR (menu_bar_items_vector
)->contents
[i
++] = Fcons (item
, Qnil
);
7156 XVECTOR (menu_bar_items_vector
)->contents
[i
++] = make_number (0);
7157 menu_bar_items_index
= i
;
7159 /* We did find an item for this KEY. Add ITEM to its list of maps. */
7163 old
= XVECTOR (menu_bar_items_vector
)->contents
[i
+ 2];
7164 /* If the new and the old items are not both keymaps,
7165 the lookup will only find `item'. */
7166 item
= Fcons (item
, KEYMAPP (item
) && KEYMAPP (XCAR (old
)) ? old
: Qnil
);
7167 XVECTOR (menu_bar_items_vector
)->contents
[i
+ 2] = item
;
7171 /* This is used as the handler when calling menu_item_eval_property. */
7173 menu_item_eval_property_1 (arg
)
7176 /* If we got a quit from within the menu computation,
7177 quit all the way out of it. This takes care of C-] in the debugger. */
7178 if (CONSP (arg
) && EQ (XCAR (arg
), Qquit
))
7179 Fsignal (Qquit
, Qnil
);
7184 /* Evaluate an expression and return the result (or nil if something
7185 went wrong). Used to evaluate dynamic parts of menu items. */
7187 menu_item_eval_property (sexpr
)
7190 int count
= SPECPDL_INDEX ();
7192 specbind (Qinhibit_redisplay
, Qt
);
7193 val
= internal_condition_case_1 (Feval
, sexpr
, Qerror
,
7194 menu_item_eval_property_1
);
7195 return unbind_to (count
, val
);
7198 /* This function parses a menu item and leaves the result in the
7199 vector item_properties.
7200 ITEM is a key binding, a possible menu item.
7201 If NOTREAL is nonzero, only check for equivalent key bindings, don't
7202 evaluate dynamic expressions in the menu item.
7203 INMENUBAR is > 0 when this is considered for an entry in a menu bar
7205 INMENUBAR is < 0 when this is considered for an entry in a keyboard menu.
7206 parse_menu_item returns true if the item is a menu item and false
7210 parse_menu_item (item
, notreal
, inmenubar
)
7212 int notreal
, inmenubar
;
7214 Lisp_Object def
, tem
, item_string
, start
;
7215 Lisp_Object cachelist
;
7217 Lisp_Object keyhint
;
7228 /* Create item_properties vector if necessary. */
7229 if (NILP (item_properties
))
7231 = Fmake_vector (make_number (ITEM_PROPERTY_ENABLE
+ 1), Qnil
);
7233 /* Initialize optional entries. */
7234 for (i
= ITEM_PROPERTY_DEF
; i
< ITEM_PROPERTY_ENABLE
; i
++)
7235 AREF (item_properties
, i
) = Qnil
;
7236 AREF (item_properties
, ITEM_PROPERTY_ENABLE
) = Qt
;
7238 /* Save the item here to protect it from GC. */
7239 AREF (item_properties
, ITEM_PROPERTY_ITEM
) = item
;
7241 item_string
= XCAR (item
);
7245 if (STRINGP (item_string
))
7247 /* Old format menu item. */
7248 AREF (item_properties
, ITEM_PROPERTY_NAME
) = item_string
;
7250 /* Maybe help string. */
7251 if (CONSP (item
) && STRINGP (XCAR (item
)))
7253 AREF (item_properties
, ITEM_PROPERTY_HELP
) = XCAR (item
);
7258 /* Maybe key binding cache. */
7259 if (CONSP (item
) && CONSP (XCAR (item
))
7260 && (NILP (XCAR (XCAR (item
)))
7261 || VECTORP (XCAR (XCAR (item
)))))
7263 cachelist
= XCAR (item
);
7267 /* This is the real definition--the function to run. */
7268 AREF (item_properties
, ITEM_PROPERTY_DEF
) = item
;
7270 /* Get enable property, if any. */
7273 tem
= Fget (item
, Qmenu_enable
);
7275 AREF (item_properties
, ITEM_PROPERTY_ENABLE
) = tem
;
7278 else if (EQ (item_string
, Qmenu_item
) && CONSP (item
))
7280 /* New format menu item. */
7281 AREF (item_properties
, ITEM_PROPERTY_NAME
) = XCAR (item
);
7282 start
= XCDR (item
);
7285 /* We have a real binding. */
7286 AREF (item_properties
, ITEM_PROPERTY_DEF
) = XCAR (start
);
7288 item
= XCDR (start
);
7289 /* Is there a cache list with key equivalences. */
7290 if (CONSP (item
) && CONSP (XCAR (item
)))
7292 cachelist
= XCAR (item
);
7296 /* Parse properties. */
7297 while (CONSP (item
) && CONSP (XCDR (item
)))
7302 if (EQ (tem
, QCenable
))
7303 AREF (item_properties
, ITEM_PROPERTY_ENABLE
) = XCAR (item
);
7304 else if (EQ (tem
, QCvisible
) && !notreal
)
7306 /* If got a visible property and that evaluates to nil
7307 then ignore this item. */
7308 tem
= menu_item_eval_property (XCAR (item
));
7312 else if (EQ (tem
, QChelp
))
7313 AREF (item_properties
, ITEM_PROPERTY_HELP
) = XCAR (item
);
7314 else if (EQ (tem
, QCfilter
))
7316 else if (EQ (tem
, QCkey_sequence
))
7319 if (NILP (cachelist
)
7320 && (SYMBOLP (tem
) || STRINGP (tem
) || VECTORP (tem
)))
7321 /* Be GC protected. Set keyhint to item instead of tem. */
7324 else if (EQ (tem
, QCkeys
))
7327 if (CONSP (tem
) || (STRINGP (tem
) && NILP (cachelist
)))
7328 AREF (item_properties
, ITEM_PROPERTY_KEYEQ
) = tem
;
7330 else if (EQ (tem
, QCbutton
) && CONSP (XCAR (item
)))
7335 if (EQ (type
, QCtoggle
) || EQ (type
, QCradio
))
7337 AREF (item_properties
, ITEM_PROPERTY_SELECTED
)
7339 AREF (item_properties
, ITEM_PROPERTY_TYPE
)
7346 else if (inmenubar
|| !NILP (start
))
7350 return 0; /* not a menu item */
7352 /* If item string is not a string, evaluate it to get string.
7353 If we don't get a string, skip this item. */
7354 item_string
= AREF (item_properties
, ITEM_PROPERTY_NAME
);
7355 if (!(STRINGP (item_string
) || notreal
))
7357 item_string
= menu_item_eval_property (item_string
);
7358 if (!STRINGP (item_string
))
7360 AREF (item_properties
, ITEM_PROPERTY_NAME
) = item_string
;
7363 /* If got a filter apply it on definition. */
7364 def
= AREF (item_properties
, ITEM_PROPERTY_DEF
);
7367 def
= menu_item_eval_property (list2 (XCAR (filter
),
7368 list2 (Qquote
, def
)));
7370 AREF (item_properties
, ITEM_PROPERTY_DEF
) = def
;
7373 /* Enable or disable selection of item. */
7374 tem
= AREF (item_properties
, ITEM_PROPERTY_ENABLE
);
7380 tem
= menu_item_eval_property (tem
);
7381 if (inmenubar
&& NILP (tem
))
7382 return 0; /* Ignore disabled items in menu bar. */
7383 AREF (item_properties
, ITEM_PROPERTY_ENABLE
) = tem
;
7386 /* If we got no definition, this item is just unselectable text which
7387 is OK in a submenu but not in the menubar. */
7389 return (inmenubar
? 0 : 1);
7391 /* See if this is a separate pane or a submenu. */
7392 def
= AREF (item_properties
, ITEM_PROPERTY_DEF
);
7393 tem
= get_keymap (def
, 0, 1);
7394 /* For a subkeymap, just record its details and exit. */
7397 AREF (item_properties
, ITEM_PROPERTY_MAP
) = tem
;
7398 AREF (item_properties
, ITEM_PROPERTY_DEF
) = tem
;
7402 /* At the top level in the menu bar, do likewise for commands also.
7403 The menu bar does not display equivalent key bindings anyway.
7404 ITEM_PROPERTY_DEF is already set up properly. */
7408 /* This is a command. See if there is an equivalent key binding. */
7409 if (NILP (cachelist
))
7411 /* We have to create a cachelist. */
7412 CHECK_IMPURE (start
);
7413 XSETCDR (start
, Fcons (Fcons (Qnil
, Qnil
), XCDR (start
)));
7414 cachelist
= XCAR (XCDR (start
));
7416 tem
= AREF (item_properties
, ITEM_PROPERTY_KEYEQ
);
7417 if (!NILP (keyhint
))
7419 XSETCAR (cachelist
, XCAR (keyhint
));
7422 else if (STRINGP (tem
))
7424 XSETCDR (cachelist
, Fsubstitute_command_keys (tem
));
7425 XSETCAR (cachelist
, Qt
);
7429 tem
= XCAR (cachelist
);
7436 tem
= Fkey_binding (tem
, Qnil
, Qnil
);
7438 prefix
= AREF (item_properties
, ITEM_PROPERTY_KEYEQ
);
7441 def
= XCAR (prefix
);
7442 prefix
= XCDR (prefix
);
7445 def
= AREF (item_properties
, ITEM_PROPERTY_DEF
);
7447 if (NILP (XCAR (cachelist
))) /* Have no saved key. */
7449 if (newcache
/* Always check first time. */
7450 /* Should we check everything when precomputing key
7452 /* If something had no key binding before, don't recheck it
7453 because that is too slow--except if we have a list of
7454 rebound commands in Vdefine_key_rebound_commands, do
7455 recheck any command that appears in that list. */
7456 || (CONSP (Vdefine_key_rebound_commands
)
7457 && !NILP (Fmemq (def
, Vdefine_key_rebound_commands
))))
7460 /* We had a saved key. Is it still bound to the command? */
7463 /* If the command is an alias for another
7464 (such as lmenu.el set it up), check if the
7465 original command matches the cached command. */
7466 && !(SYMBOLP (def
) && EQ (tem
, XSYMBOL (def
)->function
))))
7467 chkcache
= 1; /* Need to recompute key binding. */
7471 /* Recompute equivalent key binding. If the command is an alias
7472 for another (such as lmenu.el set it up), see if the original
7473 command name has equivalent keys. Otherwise look up the
7474 specified command itself. We don't try both, because that
7475 makes lmenu menus slow. */
7477 && SYMBOLP (XSYMBOL (def
)->function
)
7478 && ! NILP (Fget (def
, Qmenu_alias
)))
7479 def
= XSYMBOL (def
)->function
;
7480 tem
= Fwhere_is_internal (def
, Qnil
, Qt
, Qnil
, Qt
);
7481 XSETCAR (cachelist
, tem
);
7484 XSETCDR (cachelist
, Qnil
);
7488 else if (!NILP (keyhint
) && !NILP (XCAR (cachelist
)))
7490 tem
= XCAR (cachelist
);
7494 newcache
= chkcache
;
7497 tem
= Fkey_description (tem
, Qnil
);
7500 if (STRINGP (XCAR (prefix
)))
7501 tem
= concat2 (XCAR (prefix
), tem
);
7502 if (STRINGP (XCDR (prefix
)))
7503 tem
= concat2 (tem
, XCDR (prefix
));
7505 XSETCDR (cachelist
, tem
);
7509 tem
= XCDR (cachelist
);
7510 if (newcache
&& !NILP (tem
))
7512 tem
= concat3 (build_string (" ("), tem
, build_string (")"));
7513 XSETCDR (cachelist
, tem
);
7516 /* If we only want to precompute equivalent key bindings, stop here. */
7520 /* If we have an equivalent key binding, use that. */
7521 AREF (item_properties
, ITEM_PROPERTY_KEYEQ
) = tem
;
7523 /* Include this when menu help is implemented.
7524 tem = XVECTOR (item_properties)->contents[ITEM_PROPERTY_HELP];
7525 if (!(NILP (tem) || STRINGP (tem)))
7527 tem = menu_item_eval_property (tem);
7530 XVECTOR (item_properties)->contents[ITEM_PROPERTY_HELP] = tem;
7534 /* Handle radio buttons or toggle boxes. */
7535 tem
= AREF (item_properties
, ITEM_PROPERTY_SELECTED
);
7537 AREF (item_properties
, ITEM_PROPERTY_SELECTED
)
7538 = menu_item_eval_property (tem
);
7545 /***********************************************************************
7547 ***********************************************************************/
7549 /* A vector holding tool bar items while they are parsed in function
7550 tool_bar_items. Each item occupies TOOL_BAR_ITEM_NSCLOTS elements
7553 static Lisp_Object tool_bar_items_vector
;
7555 /* A vector holding the result of parse_tool_bar_item. Layout is like
7556 the one for a single item in tool_bar_items_vector. */
7558 static Lisp_Object tool_bar_item_properties
;
7560 /* Next free index in tool_bar_items_vector. */
7562 static int ntool_bar_items
;
7564 /* The symbols `tool-bar', and `:image'. */
7566 extern Lisp_Object Qtool_bar
;
7567 Lisp_Object QCimage
;
7569 /* Function prototypes. */
7571 static void init_tool_bar_items
P_ ((Lisp_Object
));
7572 static void process_tool_bar_item
P_ ((Lisp_Object
, Lisp_Object
));
7573 static int parse_tool_bar_item
P_ ((Lisp_Object
, Lisp_Object
));
7574 static void append_tool_bar_item
P_ ((void));
7577 /* Return a vector of tool bar items for keymaps currently in effect.
7578 Reuse vector REUSE if non-nil. Return in *NITEMS the number of
7579 tool bar items found. */
7582 tool_bar_items (reuse
, nitems
)
7593 /* In order to build the menus, we need to call the keymap
7594 accessors. They all call QUIT. But this function is called
7595 during redisplay, during which a quit is fatal. So inhibit
7596 quitting while building the menus. We do this instead of
7597 specbind because (1) errors will clear it anyway and (2) this
7598 avoids risk of specpdl overflow. */
7599 oquit
= Vinhibit_quit
;
7602 /* Initialize tool_bar_items_vector and protect it from GC. */
7603 init_tool_bar_items (reuse
);
7605 /* Build list of keymaps in maps. Set nmaps to the number of maps
7608 /* Should overriding-terminal-local-map and overriding-local-map apply? */
7609 if (!NILP (Voverriding_local_map_menu_flag
))
7611 /* Yes, use them (if non-nil) as well as the global map. */
7612 maps
= (Lisp_Object
*) alloca (3 * sizeof (maps
[0]));
7614 if (!NILP (current_kboard
->Voverriding_terminal_local_map
))
7615 maps
[nmaps
++] = current_kboard
->Voverriding_terminal_local_map
;
7616 if (!NILP (Voverriding_local_map
))
7617 maps
[nmaps
++] = Voverriding_local_map
;
7621 /* No, so use major and minor mode keymaps and keymap property.
7622 Note that tool-bar bindings in the local-map and keymap
7623 properties may not work reliable, as they are only
7624 recognized when the tool-bar (or mode-line) is updated,
7625 which does not normally happen after every command. */
7628 nminor
= current_minor_maps (NULL
, &tmaps
);
7629 maps
= (Lisp_Object
*) alloca ((nminor
+ 3) * sizeof (maps
[0]));
7631 if (tem
= get_local_map (PT
, current_buffer
, Qkeymap
), !NILP (tem
))
7632 maps
[nmaps
++] = tem
;
7633 bcopy (tmaps
, (void *) (maps
+ nmaps
), nminor
* sizeof (maps
[0]));
7635 maps
[nmaps
++] = get_local_map (PT
, current_buffer
, Qlocal_map
);
7638 /* Add global keymap at the end. */
7639 maps
[nmaps
++] = current_global_map
;
7641 /* Process maps in reverse order and look up in each map the prefix
7643 for (i
= nmaps
- 1; i
>= 0; --i
)
7644 if (!NILP (maps
[i
]))
7648 keymap
= get_keymap (access_keymap (maps
[i
], Qtool_bar
, 1, 0, 1), 0, 1);
7653 /* KEYMAP is a list `(keymap (KEY . BINDING) ...)'. */
7654 for (tail
= keymap
; CONSP (tail
); tail
= XCDR (tail
))
7656 Lisp_Object keydef
= XCAR (tail
);
7658 process_tool_bar_item (XCAR (keydef
), XCDR (keydef
));
7663 Vinhibit_quit
= oquit
;
7664 *nitems
= ntool_bar_items
/ TOOL_BAR_ITEM_NSLOTS
;
7665 return tool_bar_items_vector
;
7669 /* Process the definition of KEY which is DEF. */
7672 process_tool_bar_item (key
, def
)
7673 Lisp_Object key
, def
;
7676 extern Lisp_Object Qundefined
;
7677 struct gcpro gcpro1
, gcpro2
;
7679 /* Protect KEY and DEF from GC because parse_tool_bar_item may call
7683 if (EQ (def
, Qundefined
))
7685 /* If a map has an explicit `undefined' as definition,
7686 discard any previously made item. */
7687 for (i
= 0; i
< ntool_bar_items
; i
+= TOOL_BAR_ITEM_NSLOTS
)
7689 Lisp_Object
*v
= XVECTOR (tool_bar_items_vector
)->contents
+ i
;
7691 if (EQ (key
, v
[TOOL_BAR_ITEM_KEY
]))
7693 if (ntool_bar_items
> i
+ TOOL_BAR_ITEM_NSLOTS
)
7694 bcopy (v
+ TOOL_BAR_ITEM_NSLOTS
, v
,
7695 ((ntool_bar_items
- i
- TOOL_BAR_ITEM_NSLOTS
)
7696 * sizeof (Lisp_Object
)));
7697 ntool_bar_items
-= TOOL_BAR_ITEM_NSLOTS
;
7702 else if (parse_tool_bar_item (key
, def
))
7703 /* Append a new tool bar item to tool_bar_items_vector. Accept
7704 more than one definition for the same key. */
7705 append_tool_bar_item ();
7711 /* Parse a tool bar item specification ITEM for key KEY and return the
7712 result in tool_bar_item_properties. Value is zero if ITEM is
7715 ITEM is a list `(menu-item CAPTION BINDING PROPS...)'.
7717 CAPTION is the caption of the item, If it's not a string, it is
7718 evaluated to get a string.
7720 BINDING is the tool bar item's binding. Tool-bar items with keymaps
7721 as binding are currently ignored.
7723 The following properties are recognized:
7727 FORM is evaluated and specifies whether the tool bar item is
7728 enabled or disabled.
7732 FORM is evaluated and specifies whether the tool bar item is visible.
7734 - `:filter FUNCTION'
7736 FUNCTION is invoked with one parameter `(quote BINDING)'. Its
7737 result is stored as the new binding.
7739 - `:button (TYPE SELECTED)'
7741 TYPE must be one of `:radio' or `:toggle'. SELECTED is evaluated
7742 and specifies whether the button is selected (pressed) or not.
7746 IMAGES is either a single image specification or a vector of four
7747 image specifications. See enum tool_bar_item_images.
7749 - `:help HELP-STRING'.
7751 Gives a help string to display for the tool bar item. */
7754 parse_tool_bar_item (key
, item
)
7755 Lisp_Object key
, item
;
7757 /* Access slot with index IDX of vector tool_bar_item_properties. */
7758 #define PROP(IDX) XVECTOR (tool_bar_item_properties)->contents[IDX]
7760 Lisp_Object filter
= Qnil
;
7761 Lisp_Object caption
;
7764 /* Defininition looks like `(menu-item CAPTION BINDING PROPS...)'.
7765 Rule out items that aren't lists, don't start with
7766 `menu-item' or whose rest following `tool-bar-item' is not a
7769 || !EQ (XCAR (item
), Qmenu_item
)
7770 || (item
= XCDR (item
),
7774 /* Create tool_bar_item_properties vector if necessary. Reset it to
7776 if (VECTORP (tool_bar_item_properties
))
7778 for (i
= 0; i
< TOOL_BAR_ITEM_NSLOTS
; ++i
)
7782 tool_bar_item_properties
7783 = Fmake_vector (make_number (TOOL_BAR_ITEM_NSLOTS
), Qnil
);
7786 PROP (TOOL_BAR_ITEM_KEY
) = key
;
7787 PROP (TOOL_BAR_ITEM_ENABLED_P
) = Qt
;
7789 /* Get the caption of the item. If the caption is not a string,
7790 evaluate it to get a string. If we don't get a string, skip this
7792 caption
= XCAR (item
);
7793 if (!STRINGP (caption
))
7795 caption
= menu_item_eval_property (caption
);
7796 if (!STRINGP (caption
))
7799 PROP (TOOL_BAR_ITEM_CAPTION
) = caption
;
7801 /* Give up if rest following the caption is not a list. */
7806 /* Store the binding. */
7807 PROP (TOOL_BAR_ITEM_BINDING
) = XCAR (item
);
7810 /* Ignore cached key binding, if any. */
7811 if (CONSP (item
) && CONSP (XCAR (item
)))
7814 /* Process the rest of the properties. */
7815 for (; CONSP (item
) && CONSP (XCDR (item
)); item
= XCDR (XCDR (item
)))
7817 Lisp_Object key
, value
;
7820 value
= XCAR (XCDR (item
));
7822 if (EQ (key
, QCenable
))
7823 /* `:enable FORM'. */
7824 PROP (TOOL_BAR_ITEM_ENABLED_P
) = value
;
7825 else if (EQ (key
, QCvisible
))
7827 /* `:visible FORM'. If got a visible property and that
7828 evaluates to nil then ignore this item. */
7829 if (NILP (menu_item_eval_property (value
)))
7832 else if (EQ (key
, QChelp
))
7833 /* `:help HELP-STRING'. */
7834 PROP (TOOL_BAR_ITEM_HELP
) = value
;
7835 else if (EQ (key
, QCfilter
))
7836 /* ':filter FORM'. */
7838 else if (EQ (key
, QCbutton
) && CONSP (value
))
7840 /* `:button (TYPE . SELECTED)'. */
7841 Lisp_Object type
, selected
;
7843 type
= XCAR (value
);
7844 selected
= XCDR (value
);
7845 if (EQ (type
, QCtoggle
) || EQ (type
, QCradio
))
7847 PROP (TOOL_BAR_ITEM_SELECTED_P
) = selected
;
7848 PROP (TOOL_BAR_ITEM_TYPE
) = type
;
7851 else if (EQ (key
, QCimage
)
7853 || (VECTORP (value
) && XVECTOR (value
)->size
== 4)))
7854 /* Value is either a single image specification or a vector
7855 of 4 such specifications for the different button states. */
7856 PROP (TOOL_BAR_ITEM_IMAGES
) = value
;
7859 /* If got a filter apply it on binding. */
7861 PROP (TOOL_BAR_ITEM_BINDING
)
7862 = menu_item_eval_property (list2 (filter
,
7864 PROP (TOOL_BAR_ITEM_BINDING
))));
7866 /* See if the binding is a keymap. Give up if it is. */
7867 if (CONSP (get_keymap (PROP (TOOL_BAR_ITEM_BINDING
), 0, 1)))
7870 /* Enable or disable selection of item. */
7871 if (!EQ (PROP (TOOL_BAR_ITEM_ENABLED_P
), Qt
))
7872 PROP (TOOL_BAR_ITEM_ENABLED_P
)
7873 = menu_item_eval_property (PROP (TOOL_BAR_ITEM_ENABLED_P
));
7875 /* Handle radio buttons or toggle boxes. */
7876 if (!NILP (PROP (TOOL_BAR_ITEM_SELECTED_P
)))
7877 PROP (TOOL_BAR_ITEM_SELECTED_P
)
7878 = menu_item_eval_property (PROP (TOOL_BAR_ITEM_SELECTED_P
));
7886 /* Initialize tool_bar_items_vector. REUSE, if non-nil, is a vector
7887 that can be reused. */
7890 init_tool_bar_items (reuse
)
7893 if (VECTORP (reuse
))
7894 tool_bar_items_vector
= reuse
;
7896 tool_bar_items_vector
= Fmake_vector (make_number (64), Qnil
);
7897 ntool_bar_items
= 0;
7901 /* Append parsed tool bar item properties from
7902 tool_bar_item_properties */
7905 append_tool_bar_item ()
7907 Lisp_Object
*to
, *from
;
7909 /* Enlarge tool_bar_items_vector if necessary. */
7910 if (ntool_bar_items
+ TOOL_BAR_ITEM_NSLOTS
7911 >= XVECTOR (tool_bar_items_vector
)->size
)
7913 Lisp_Object new_vector
;
7914 int old_size
= XVECTOR (tool_bar_items_vector
)->size
;
7916 new_vector
= Fmake_vector (make_number (2 * old_size
), Qnil
);
7917 bcopy (XVECTOR (tool_bar_items_vector
)->contents
,
7918 XVECTOR (new_vector
)->contents
,
7919 old_size
* sizeof (Lisp_Object
));
7920 tool_bar_items_vector
= new_vector
;
7923 /* Append entries from tool_bar_item_properties to the end of
7924 tool_bar_items_vector. */
7925 to
= XVECTOR (tool_bar_items_vector
)->contents
+ ntool_bar_items
;
7926 from
= XVECTOR (tool_bar_item_properties
)->contents
;
7927 bcopy (from
, to
, TOOL_BAR_ITEM_NSLOTS
* sizeof *to
);
7928 ntool_bar_items
+= TOOL_BAR_ITEM_NSLOTS
;
7935 /* Read a character using menus based on maps in the array MAPS.
7936 NMAPS is the length of MAPS. Return nil if there are no menus in the maps.
7937 Return t if we displayed a menu but the user rejected it.
7939 PREV_EVENT is the previous input event, or nil if we are reading
7940 the first event of a key sequence.
7942 If USED_MOUSE_MENU is non-null, then we set *USED_MOUSE_MENU to 1
7943 if we used a mouse menu to read the input, or zero otherwise. If
7944 USED_MOUSE_MENU is null, we don't dereference it.
7946 The prompting is done based on the prompt-string of the map
7947 and the strings associated with various map elements.
7949 This can be done with X menus or with menus put in the minibuf.
7950 These are done in different ways, depending on how the input will be read.
7951 Menus using X are done after auto-saving in read-char, getting the input
7952 event from Fx_popup_menu; menus using the minibuf use read_char recursively
7953 and do auto-saving in the inner call of read_char. */
7956 read_char_x_menu_prompt (nmaps
, maps
, prev_event
, used_mouse_menu
)
7959 Lisp_Object prev_event
;
7960 int *used_mouse_menu
;
7963 register Lisp_Object name
= Qnil
;
7965 if (used_mouse_menu
)
7966 *used_mouse_menu
= 0;
7968 /* Use local over global Menu maps */
7970 if (! menu_prompting
)
7973 /* Optionally disregard all but the global map. */
7974 if (inhibit_local_menu_bar_menus
)
7976 maps
+= (nmaps
- 1);
7980 /* Get the menu name from the first map that has one (a prompt string). */
7981 for (mapno
= 0; mapno
< nmaps
; mapno
++)
7983 name
= Fkeymap_prompt (maps
[mapno
]);
7988 /* If we don't have any menus, just read a character normally. */
7989 if (!STRINGP (name
))
7993 /* If we got to this point via a mouse click,
7994 use a real menu for mouse selection. */
7995 if (EVENT_HAS_PARAMETERS (prev_event
)
7996 && !EQ (XCAR (prev_event
), Qmenu_bar
)
7997 && !EQ (XCAR (prev_event
), Qtool_bar
))
7999 /* Display the menu and get the selection. */
8000 Lisp_Object
*realmaps
8001 = (Lisp_Object
*) alloca (nmaps
* sizeof (Lisp_Object
));
8005 /* Use the maps that are not nil. */
8006 for (mapno
= 0; mapno
< nmaps
; mapno
++)
8007 if (!NILP (maps
[mapno
]))
8008 realmaps
[nmaps1
++] = maps
[mapno
];
8010 value
= Fx_popup_menu (prev_event
, Flist (nmaps1
, realmaps
));
8015 record_menu_key (XCAR (value
));
8017 /* If we got multiple events, unread all but
8019 There is no way to prevent those unread events
8020 from showing up later in last_nonmenu_event.
8021 So turn symbol and integer events into lists,
8022 to indicate that they came from a mouse menu,
8023 so that when present in last_nonmenu_event
8024 they won't confuse things. */
8025 for (tem
= XCDR (value
); !NILP (tem
); tem
= XCDR (tem
))
8027 record_menu_key (XCAR (tem
));
8028 if (SYMBOLP (XCAR (tem
))
8029 || INTEGERP (XCAR (tem
)))
8030 XSETCAR (tem
, Fcons (XCAR (tem
), Qdisabled
));
8033 /* If we got more than one event, put all but the first
8034 onto this list to be read later.
8035 Return just the first event now. */
8036 Vunread_command_events
8037 = nconc2 (XCDR (value
), Vunread_command_events
);
8038 value
= XCAR (value
);
8040 else if (NILP (value
))
8042 if (used_mouse_menu
)
8043 *used_mouse_menu
= 1;
8046 #endif /* HAVE_MENUS */
8050 /* Buffer in use so far for the minibuf prompts for menu keymaps.
8051 We make this bigger when necessary, and never free it. */
8052 static char *read_char_minibuf_menu_text
;
8053 /* Size of that buffer. */
8054 static int read_char_minibuf_menu_width
;
8057 read_char_minibuf_menu_prompt (commandflag
, nmaps
, maps
)
8063 register Lisp_Object name
;
8065 /* FIXME: Use the minibuffer's frame width. */
8066 int width
= FRAME_COLS (SELECTED_FRAME ()) - 4;
8069 Lisp_Object rest
, vector
;
8075 if (! menu_prompting
)
8078 /* Make sure we have a big enough buffer for the menu text. */
8079 if (read_char_minibuf_menu_text
== 0)
8081 read_char_minibuf_menu_width
= width
+ 4;
8082 read_char_minibuf_menu_text
= (char *) xmalloc (width
+ 4);
8084 else if (width
+ 4 > read_char_minibuf_menu_width
)
8086 read_char_minibuf_menu_width
= width
+ 4;
8087 read_char_minibuf_menu_text
8088 = (char *) xrealloc (read_char_minibuf_menu_text
, width
+ 4);
8090 menu
= read_char_minibuf_menu_text
;
8092 /* Get the menu name from the first map that has one (a prompt string). */
8093 for (mapno
= 0; mapno
< nmaps
; mapno
++)
8095 name
= Fkeymap_prompt (maps
[mapno
]);
8100 /* If we don't have any menus, just read a character normally. */
8101 if (!STRINGP (name
))
8104 /* Prompt string always starts with map's prompt, and a space. */
8105 strcpy (menu
, SDATA (name
));
8106 nlength
= SBYTES (name
);
8107 menu
[nlength
++] = ':';
8108 menu
[nlength
++] = ' ';
8111 /* Start prompting at start of first map. */
8115 /* Present the documented bindings, a line at a time. */
8122 Lisp_Object orig_defn_macro
;
8124 /* Loop over elements of map. */
8129 /* If reached end of map, start at beginning of next map. */
8133 /* At end of last map, wrap around to first map if just starting,
8134 or end this line if already have something on it. */
8138 if (notfirst
|| nobindings
) break;
8143 /* Look at the next element of the map. */
8145 elt
= XVECTOR (vector
)->contents
[idx
];
8147 elt
= Fcar_safe (rest
);
8149 if (idx
< 0 && VECTORP (elt
))
8151 /* If we found a dense table in the keymap,
8152 advanced past it, but start scanning its contents. */
8153 rest
= Fcdr_safe (rest
);
8159 /* An ordinary element. */
8160 Lisp_Object event
, tem
;
8164 event
= Fcar_safe (elt
); /* alist */
8165 elt
= Fcdr_safe (elt
);
8169 XSETINT (event
, idx
); /* vector */
8172 /* Ignore the element if it has no prompt string. */
8173 if (INTEGERP (event
) && parse_menu_item (elt
, 0, -1))
8175 /* 1 if the char to type matches the string. */
8177 Lisp_Object upcased_event
, downcased_event
;
8178 Lisp_Object desc
= Qnil
;
8180 = XVECTOR (item_properties
)->contents
[ITEM_PROPERTY_NAME
];
8182 upcased_event
= Fupcase (event
);
8183 downcased_event
= Fdowncase (event
);
8184 char_matches
= (XINT (upcased_event
) == SREF (s
, 0)
8185 || XINT (downcased_event
) == SREF (s
, 0));
8187 desc
= Fsingle_key_description (event
, Qnil
);
8189 #if 0 /* It is redundant to list the equivalent key bindings because
8190 the prefix is what the user has already typed. */
8192 = XVECTOR (item_properties
)->contents
[ITEM_PROPERTY_KEYEQ
];
8194 /* Insert equivalent keybinding. */
8195 s
= concat2 (s
, tem
);
8198 = XVECTOR (item_properties
)->contents
[ITEM_PROPERTY_TYPE
];
8199 if (EQ (tem
, QCradio
) || EQ (tem
, QCtoggle
))
8201 /* Insert button prefix. */
8202 Lisp_Object selected
8203 = XVECTOR (item_properties
)->contents
[ITEM_PROPERTY_SELECTED
];
8204 if (EQ (tem
, QCradio
))
8205 tem
= build_string (NILP (selected
) ? "(*) " : "( ) ");
8207 tem
= build_string (NILP (selected
) ? "[X] " : "[ ] ");
8208 s
= concat2 (tem
, s
);
8212 /* If we have room for the prompt string, add it to this line.
8213 If this is the first on the line, always add it. */
8214 if ((SCHARS (s
) + i
+ 2
8215 + (char_matches
? 0 : SCHARS (desc
) + 3))
8221 /* Punctuate between strings. */
8224 strcpy (menu
+ i
, ", ");
8230 /* If the char to type doesn't match the string's
8231 first char, explicitly show what char to type. */
8234 /* Add as much of string as fits. */
8235 thiswidth
= SCHARS (desc
);
8236 if (thiswidth
+ i
> width
)
8237 thiswidth
= width
- i
;
8238 bcopy (SDATA (desc
), menu
+ i
, thiswidth
);
8240 strcpy (menu
+ i
, " = ");
8244 /* Add as much of string as fits. */
8245 thiswidth
= SCHARS (s
);
8246 if (thiswidth
+ i
> width
)
8247 thiswidth
= width
- i
;
8248 bcopy (SDATA (s
), menu
+ i
, thiswidth
);
8254 /* If this element does not fit, end the line now,
8255 and save the element for the next line. */
8256 strcpy (menu
+ i
, "...");
8261 /* Move past this element. */
8262 if (idx
>= 0 && idx
+ 1 >= XVECTOR (vector
)->size
)
8263 /* Handle reaching end of dense table. */
8268 rest
= Fcdr_safe (rest
);
8272 /* Prompt with that and read response. */
8273 message2_nolog (menu
, strlen (menu
),
8274 ! NILP (current_buffer
->enable_multibyte_characters
));
8276 /* Make believe its not a keyboard macro in case the help char
8277 is pressed. Help characters are not recorded because menu prompting
8278 is not used on replay.
8280 orig_defn_macro
= current_kboard
->defining_kbd_macro
;
8281 current_kboard
->defining_kbd_macro
= Qnil
;
8283 obj
= read_char (commandflag
, 0, 0, Qt
, 0);
8284 while (BUFFERP (obj
));
8285 current_kboard
->defining_kbd_macro
= orig_defn_macro
;
8287 if (!INTEGERP (obj
))
8292 if (! EQ (obj
, menu_prompt_more_char
)
8293 && (!INTEGERP (menu_prompt_more_char
)
8294 || ! EQ (obj
, make_number (Ctl (XINT (menu_prompt_more_char
))))))
8296 if (!NILP (current_kboard
->defining_kbd_macro
))
8297 store_kbd_macro_char (obj
);
8300 /* Help char - go round again */
8304 /* Reading key sequences. */
8306 /* Follow KEY in the maps in CURRENT[0..NMAPS-1], placing its bindings
8307 in DEFS[0..NMAPS-1]. Set NEXT[i] to DEFS[i] if DEFS[i] is a
8308 keymap, or nil otherwise. Return the index of the first keymap in
8309 which KEY has any binding, or NMAPS if no map has a binding.
8311 If KEY is a meta ASCII character, treat it like meta-prefix-char
8312 followed by the corresponding non-meta character. Keymaps in
8313 CURRENT with non-prefix bindings for meta-prefix-char become nil in
8316 If KEY has no bindings in any of the CURRENT maps, NEXT is left
8319 NEXT may be the same array as CURRENT. */
8322 follow_key (key
, nmaps
, current
, defs
, next
)
8324 Lisp_Object
*current
, *defs
, *next
;
8327 int i
, first_binding
;
8329 first_binding
= nmaps
;
8330 for (i
= nmaps
- 1; i
>= 0; i
--)
8332 if (! NILP (current
[i
]))
8334 defs
[i
] = access_keymap (current
[i
], key
, 1, 0, 1);
8335 if (! NILP (defs
[i
]))
8342 /* Given the set of bindings we've found, produce the next set of maps. */
8343 if (first_binding
< nmaps
)
8344 for (i
= 0; i
< nmaps
; i
++)
8345 next
[i
] = NILP (defs
[i
]) ? Qnil
: get_keymap (defs
[i
], 0, 1);
8347 return first_binding
;
8350 /* Structure used to keep track of partial application of key remapping
8351 such as Vfunction_key_map and Vkey_translation_map. */
8352 typedef struct keyremap
8354 Lisp_Object map
, parent
;
8358 /* Lookup KEY in MAP.
8359 MAP is a keymap mapping keys to key vectors or functions.
8360 If the mapping is a function and DO_FUNCTION is non-zero, then
8361 the function is called with PROMPT as parameter and its return
8362 value is used as the return value of this function (after checking
8363 that it is indeed a vector). */
8366 access_keymap_keyremap (map
, key
, prompt
, do_funcall
)
8367 Lisp_Object map
, key
, prompt
;
8372 next
= access_keymap (map
, key
, 1, 0, 1);
8374 /* Handle symbol with autoload definition. */
8375 if (SYMBOLP (next
) && !NILP (Ffboundp (next
))
8376 && CONSP (XSYMBOL (next
)->function
)
8377 && EQ (XCAR (XSYMBOL (next
)->function
), Qautoload
))
8378 do_autoload (XSYMBOL (next
)->function
, next
);
8380 /* Handle a symbol whose function definition is a keymap
8382 if (SYMBOLP (next
) && !NILP (Ffboundp (next
))
8383 && (!NILP (Farrayp (XSYMBOL (next
)->function
))
8384 || KEYMAPP (XSYMBOL (next
)->function
)))
8385 next
= XSYMBOL (next
)->function
;
8387 /* If the keymap gives a function, not an
8388 array, then call the function with one arg and use
8389 its value instead. */
8390 if (SYMBOLP (next
) && !NILP (Ffboundp (next
)) && do_funcall
)
8395 next
= call1 (next
, prompt
);
8396 /* If the function returned something invalid,
8397 barf--don't ignore it.
8398 (To ignore it safely, we would need to gcpro a bunch of
8399 other variables.) */
8400 if (! (VECTORP (next
) || STRINGP (next
)))
8401 error ("Function %s returns invalid key sequence", tem
);
8406 /* Do one step of the key remapping used for function-key-map and
8407 key-translation-map:
8408 KEYBUF is the buffer holding the input events.
8409 BUFSIZE is its maximum size.
8410 FKEY is a pointer to the keyremap structure to use.
8411 INPUT is the index of the last element in KEYBUF.
8412 DOIT if non-zero says that the remapping can actually take place.
8413 DIFF is used to return the number of keys added/removed by the remapping.
8414 PARENT is the root of the keymap.
8415 PROMPT is the prompt to use if the remapping happens through a function.
8416 The return value is non-zero if the remapping actually took place. */
8419 keyremap_step (keybuf
, bufsize
, fkey
, input
, doit
, diff
, prompt
)
8420 Lisp_Object
*keybuf
, prompt
;
8422 int input
, doit
, *diff
, bufsize
;
8424 Lisp_Object next
, key
;
8426 key
= keybuf
[fkey
->end
++];
8427 next
= access_keymap_keyremap (fkey
->map
, key
, prompt
, doit
);
8429 /* If keybuf[fkey->start..fkey->end] is bound in the
8430 map and we're in a position to do the key remapping, replace it with
8431 the binding and restart with fkey->start at the end. */
8432 if ((VECTORP (next
) || STRINGP (next
)) && doit
)
8434 int len
= XFASTINT (Flength (next
));
8437 *diff
= len
- (fkey
->end
- fkey
->start
);
8439 if (input
+ *diff
>= bufsize
)
8440 error ("Key sequence too long");
8442 /* Shift the keys that follow fkey->end. */
8444 for (i
= fkey
->end
; i
< input
; i
++)
8445 keybuf
[i
+ *diff
] = keybuf
[i
];
8447 for (i
= input
- 1; i
>= fkey
->end
; i
--)
8448 keybuf
[i
+ *diff
] = keybuf
[i
];
8449 /* Overwrite the old keys with the new ones. */
8450 for (i
= 0; i
< len
; i
++)
8451 keybuf
[fkey
->start
+ i
]
8452 = Faref (next
, make_number (i
));
8454 fkey
->start
= fkey
->end
+= *diff
;
8455 fkey
->map
= fkey
->parent
;
8460 fkey
->map
= get_keymap (next
, 0, 1);
8462 /* If we no longer have a bound suffix, try a new position for
8464 if (!CONSP (fkey
->map
))
8466 fkey
->end
= ++fkey
->start
;
8467 fkey
->map
= fkey
->parent
;
8472 /* Read a sequence of keys that ends with a non prefix character,
8473 storing it in KEYBUF, a buffer of size BUFSIZE.
8475 Return the length of the key sequence stored.
8476 Return -1 if the user rejected a command menu.
8478 Echo starting immediately unless `prompt' is 0.
8480 Where a key sequence ends depends on the currently active keymaps.
8481 These include any minor mode keymaps active in the current buffer,
8482 the current buffer's local map, and the global map.
8484 If a key sequence has no other bindings, we check Vfunction_key_map
8485 to see if some trailing subsequence might be the beginning of a
8486 function key's sequence. If so, we try to read the whole function
8487 key, and substitute its symbolic name into the key sequence.
8489 We ignore unbound `down-' mouse clicks. We turn unbound `drag-' and
8490 `double-' events into similar click events, if that would make them
8491 bound. We try to turn `triple-' events first into `double-' events,
8494 If we get a mouse click in a mode line, vertical divider, or other
8495 non-text area, we treat the click as if it were prefixed by the
8496 symbol denoting that area - `mode-line', `vertical-line', or
8499 If the sequence starts with a mouse click, we read the key sequence
8500 with respect to the buffer clicked on, not the current buffer.
8502 If the user switches frames in the midst of a key sequence, we put
8503 off the switch-frame event until later; the next call to
8504 read_char will return it.
8506 If FIX_CURRENT_BUFFER is nonzero, we restore current_buffer
8507 from the selected window's buffer. */
8510 read_key_sequence (keybuf
, bufsize
, prompt
, dont_downcase_last
,
8511 can_return_switch_frame
, fix_current_buffer
)
8512 Lisp_Object
*keybuf
;
8515 int dont_downcase_last
;
8516 int can_return_switch_frame
;
8517 int fix_current_buffer
;
8519 volatile Lisp_Object from_string
;
8520 volatile int count
= SPECPDL_INDEX ();
8522 /* How many keys there are in the current key sequence. */
8525 /* The length of the echo buffer when we started reading, and
8526 the length of this_command_keys when we started reading. */
8527 volatile int echo_start
;
8528 volatile int keys_start
;
8530 /* The number of keymaps we're scanning right now, and the number of
8531 keymaps we have allocated space for. */
8533 volatile int nmaps_allocated
= 0;
8535 /* defs[0..nmaps-1] are the definitions of KEYBUF[0..t-1] in
8536 the current keymaps. */
8537 Lisp_Object
*volatile defs
= NULL
;
8539 /* submaps[0..nmaps-1] are the prefix definitions of KEYBUF[0..t-1]
8540 in the current keymaps, or nil where it is not a prefix. */
8541 Lisp_Object
*volatile submaps
= NULL
;
8543 /* The local map to start out with at start of key sequence. */
8544 volatile Lisp_Object orig_local_map
;
8546 /* The map from the `keymap' property to start out with at start of
8548 volatile Lisp_Object orig_keymap
;
8550 /* 1 if we have already considered switching to the local-map property
8551 of the place where a mouse click occurred. */
8552 volatile int localized_local_map
= 0;
8554 /* The index in defs[] of the first keymap that has a binding for
8555 this key sequence. In other words, the lowest i such that
8556 defs[i] is non-nil. */
8557 volatile int first_binding
;
8558 /* Index of the first key that has no binding.
8559 It is useless to try fkey.start larger than that. */
8560 volatile int first_unbound
;
8562 /* If t < mock_input, then KEYBUF[t] should be read as the next
8565 We use this to recover after recognizing a function key. Once we
8566 realize that a suffix of the current key sequence is actually a
8567 function key's escape sequence, we replace the suffix with the
8568 function key's binding from Vfunction_key_map. Now keybuf
8569 contains a new and different key sequence, so the echo area,
8570 this_command_keys, and the submaps and defs arrays are wrong. In
8571 this situation, we set mock_input to t, set t to 0, and jump to
8572 restart_sequence; the loop will read keys from keybuf up until
8573 mock_input, thus rebuilding the state; and then it will resume
8574 reading characters from the keyboard. */
8575 volatile int mock_input
= 0;
8577 /* If the sequence is unbound in submaps[], then
8578 keybuf[fkey.start..fkey.end-1] is a prefix in Vfunction_key_map,
8579 and fkey.map is its binding.
8581 These might be > t, indicating that all function key scanning
8582 should hold off until t reaches them. We do this when we've just
8583 recognized a function key, to avoid searching for the function
8584 key's again in Vfunction_key_map. */
8585 volatile keyremap fkey
;
8587 /* Likewise, for key_translation_map. */
8588 volatile keyremap keytran
;
8590 /* If we receive a `switch-frame' or `select-window' event in the middle of
8591 a key sequence, we put it off for later.
8592 While we're reading, we keep the event here. */
8593 volatile Lisp_Object delayed_switch_frame
;
8595 /* See the comment below... */
8596 #if defined (GOBBLE_FIRST_EVENT)
8597 Lisp_Object first_event
;
8600 volatile Lisp_Object original_uppercase
;
8601 volatile int original_uppercase_position
= -1;
8603 /* Gets around Microsoft compiler limitations. */
8606 struct buffer
*starting_buffer
;
8608 /* List of events for which a fake prefix key has been generated. */
8609 volatile Lisp_Object fake_prefixed_keys
= Qnil
;
8611 #if defined (GOBBLE_FIRST_EVENT)
8615 struct gcpro gcpro1
;
8617 GCPRO1 (fake_prefixed_keys
);
8618 raw_keybuf_count
= 0;
8620 last_nonmenu_event
= Qnil
;
8622 delayed_switch_frame
= Qnil
;
8623 fkey
.map
= fkey
.parent
= Vfunction_key_map
;
8624 keytran
.map
= keytran
.parent
= Vkey_translation_map
;
8625 /* If there is no translation-map, turn off scanning. */
8626 fkey
.start
= fkey
.end
= KEYMAPP (fkey
.map
) ? 0 : bufsize
+ 1;
8627 keytran
.start
= keytran
.end
= KEYMAPP (keytran
.map
) ? 0 : bufsize
+ 1;
8632 echo_prompt (prompt
);
8633 else if (cursor_in_echo_area
8634 && (FLOATP (Vecho_keystrokes
) || INTEGERP (Vecho_keystrokes
))
8635 && NILP (Fzerop (Vecho_keystrokes
)))
8636 /* This doesn't put in a dash if the echo buffer is empty, so
8637 you don't always see a dash hanging out in the minibuffer. */
8641 /* Record the initial state of the echo area and this_command_keys;
8642 we will need to restore them if we replay a key sequence. */
8644 echo_start
= echo_length ();
8645 keys_start
= this_command_key_count
;
8646 this_single_command_key_start
= keys_start
;
8648 #if defined (GOBBLE_FIRST_EVENT)
8649 /* This doesn't quite work, because some of the things that read_char
8650 does cannot safely be bypassed. It seems too risky to try to make
8653 /* Read the first char of the sequence specially, before setting
8654 up any keymaps, in case a filter runs and switches buffers on us. */
8655 first_event
= read_char (NILP (prompt
), 0, submaps
, last_nonmenu_event
,
8657 #endif /* GOBBLE_FIRST_EVENT */
8659 orig_local_map
= get_local_map (PT
, current_buffer
, Qlocal_map
);
8660 orig_keymap
= get_local_map (PT
, current_buffer
, Qkeymap
);
8663 /* We jump here when the key sequence has been thoroughly changed, and
8664 we need to rescan it starting from the beginning. When we jump here,
8665 keybuf[0..mock_input] holds the sequence we should reread. */
8668 starting_buffer
= current_buffer
;
8669 first_unbound
= bufsize
+ 1;
8671 /* Build our list of keymaps.
8672 If we recognize a function key and replace its escape sequence in
8673 keybuf with its symbol, or if the sequence starts with a mouse
8674 click and we need to switch buffers, we jump back here to rebuild
8675 the initial keymaps from the current buffer. */
8678 if (!NILP (current_kboard
->Voverriding_terminal_local_map
)
8679 || !NILP (Voverriding_local_map
))
8681 if (3 > nmaps_allocated
)
8683 submaps
= (Lisp_Object
*) alloca (3 * sizeof (submaps
[0]));
8684 defs
= (Lisp_Object
*) alloca (3 * sizeof (defs
[0]));
8685 nmaps_allocated
= 3;
8687 if (!NILP (current_kboard
->Voverriding_terminal_local_map
))
8688 submaps
[nmaps
++] = current_kboard
->Voverriding_terminal_local_map
;
8689 if (!NILP (Voverriding_local_map
))
8690 submaps
[nmaps
++] = Voverriding_local_map
;
8698 nminor
= current_minor_maps (0, &maps
);
8699 total
= nminor
+ (!NILP (orig_keymap
) ? 3 : 2);
8701 if (total
> nmaps_allocated
)
8703 submaps
= (Lisp_Object
*) alloca (total
* sizeof (submaps
[0]));
8704 defs
= (Lisp_Object
*) alloca (total
* sizeof (defs
[0]));
8705 nmaps_allocated
= total
;
8708 if (!NILP (orig_keymap
))
8709 submaps
[nmaps
++] = orig_keymap
;
8711 bcopy (maps
, (void *) (submaps
+ nmaps
),
8712 nminor
* sizeof (submaps
[0]));
8716 submaps
[nmaps
++] = orig_local_map
;
8718 submaps
[nmaps
++] = current_global_map
;
8720 /* Find an accurate initial value for first_binding. */
8721 for (first_binding
= 0; first_binding
< nmaps
; first_binding
++)
8722 if (! NILP (submaps
[first_binding
]))
8725 /* Start from the beginning in keybuf. */
8728 /* These are no-ops the first time through, but if we restart, they
8729 revert the echo area and this_command_keys to their original state. */
8730 this_command_key_count
= keys_start
;
8731 if (INTERACTIVE
&& t
< mock_input
)
8732 echo_truncate (echo_start
);
8734 /* If the best binding for the current key sequence is a keymap, or
8735 we may be looking at a function key's escape sequence, keep on
8737 while (first_binding
< nmaps
8738 /* Keep reading as long as there's a prefix binding. */
8739 ? !NILP (submaps
[first_binding
])
8740 /* Don't return in the middle of a possible function key sequence,
8741 if the only bindings we found were via case conversion.
8742 Thus, if ESC O a has a function-key-map translation
8743 and ESC o has a binding, don't return after ESC O,
8744 so that we can translate ESC O plus the next character. */
8745 : (fkey
.start
< t
|| keytran
.start
< t
))
8748 int used_mouse_menu
= 0;
8750 /* Where the last real key started. If we need to throw away a
8751 key that has expanded into more than one element of keybuf
8752 (say, a mouse click on the mode line which is being treated
8753 as [mode-line (mouse-...)], then we backtrack to this point
8755 volatile int last_real_key_start
;
8757 /* These variables are analogous to echo_start and keys_start;
8758 while those allow us to restart the entire key sequence,
8759 echo_local_start and keys_local_start allow us to throw away
8761 volatile int echo_local_start
, keys_local_start
, local_first_binding
;
8763 eassert (fkey
.end
== t
|| (fkey
.end
> t
&& fkey
.end
<= mock_input
));
8764 eassert (fkey
.start
<= fkey
.end
);
8765 eassert (keytran
.start
<= keytran
.end
);
8766 /* key-translation-map is applied *after* function-key-map. */
8767 eassert (keytran
.end
<= fkey
.start
);
8769 if (first_unbound
< fkey
.start
&& first_unbound
< keytran
.start
)
8770 { /* The prefix upto first_unbound has no binding and has
8771 no translation left to do either, so we know it's unbound.
8772 If we don't stop now, we risk staying here indefinitely
8773 (if the user keeps entering fkey or keytran prefixes
8774 like C-c ESC ESC ESC ESC ...) */
8776 for (i
= first_unbound
+ 1; i
< t
; i
++)
8777 keybuf
[i
- first_unbound
- 1] = keybuf
[i
];
8778 mock_input
= t
- first_unbound
- 1;
8779 fkey
.end
= fkey
.start
-= first_unbound
+ 1;
8780 fkey
.map
= fkey
.parent
;
8781 keytran
.end
= keytran
.start
-= first_unbound
+ 1;
8782 keytran
.map
= keytran
.parent
;
8783 goto replay_sequence
;
8787 error ("Key sequence too long");
8790 echo_local_start
= echo_length ();
8791 keys_local_start
= this_command_key_count
;
8792 local_first_binding
= first_binding
;
8795 /* These are no-ops, unless we throw away a keystroke below and
8796 jumped back up to replay_key; in that case, these restore the
8797 variables to their original state, allowing us to replay the
8799 if (INTERACTIVE
&& t
< mock_input
)
8800 echo_truncate (echo_local_start
);
8801 this_command_key_count
= keys_local_start
;
8802 first_binding
= local_first_binding
;
8804 /* By default, assume each event is "real". */
8805 last_real_key_start
= t
;
8807 /* Does mock_input indicate that we are re-reading a key sequence? */
8811 add_command_key (key
);
8812 if ((FLOATP (Vecho_keystrokes
) || INTEGERP (Vecho_keystrokes
))
8813 && NILP (Fzerop (Vecho_keystrokes
)))
8817 /* If not, we should actually read a character. */
8822 KBOARD
*interrupted_kboard
= current_kboard
;
8823 struct frame
*interrupted_frame
= SELECTED_FRAME ();
8824 if (setjmp (wrong_kboard_jmpbuf
))
8826 if (!NILP (delayed_switch_frame
))
8828 interrupted_kboard
->kbd_queue
8829 = Fcons (delayed_switch_frame
,
8830 interrupted_kboard
->kbd_queue
);
8831 delayed_switch_frame
= Qnil
;
8834 interrupted_kboard
->kbd_queue
8835 = Fcons (keybuf
[--t
], interrupted_kboard
->kbd_queue
);
8837 /* If the side queue is non-empty, ensure it begins with a
8838 switch-frame, so we'll replay it in the right context. */
8839 if (CONSP (interrupted_kboard
->kbd_queue
)
8840 && (key
= XCAR (interrupted_kboard
->kbd_queue
),
8841 !(EVENT_HAS_PARAMETERS (key
)
8842 && EQ (EVENT_HEAD_KIND (EVENT_HEAD (key
)),
8846 XSETFRAME (frame
, interrupted_frame
);
8847 interrupted_kboard
->kbd_queue
8848 = Fcons (make_lispy_switch_frame (frame
),
8849 interrupted_kboard
->kbd_queue
);
8852 orig_local_map
= get_local_map (PT
, current_buffer
, Qlocal_map
);
8853 orig_keymap
= get_local_map (PT
, current_buffer
, Qkeymap
);
8854 goto replay_sequence
;
8857 key
= read_char (NILP (prompt
), nmaps
,
8858 (Lisp_Object
*) submaps
, last_nonmenu_event
,
8862 /* read_char returns t when it shows a menu and the user rejects it.
8866 unbind_to (count
, Qnil
);
8871 /* read_char returns -1 at the end of a macro.
8872 Emacs 18 handles this by returning immediately with a
8873 zero, so that's what we'll do. */
8874 if (INTEGERP (key
) && XINT (key
) == -1)
8877 /* The Microsoft C compiler can't handle the goto that
8883 /* If the current buffer has been changed from under us, the
8884 keymap may have changed, so replay the sequence. */
8887 timer_resume_idle ();
8890 /* Reset the current buffer from the selected window
8891 in case something changed the former and not the latter.
8892 This is to be more consistent with the behavior
8893 of the command_loop_1. */
8894 if (fix_current_buffer
)
8896 if (! FRAME_LIVE_P (XFRAME (selected_frame
)))
8898 if (XBUFFER (XWINDOW (selected_window
)->buffer
) != current_buffer
)
8899 Fset_buffer (XWINDOW (selected_window
)->buffer
);
8902 orig_local_map
= get_local_map (PT
, current_buffer
, Qlocal_map
);
8903 orig_keymap
= get_local_map (PT
, current_buffer
, Qkeymap
);
8904 goto replay_sequence
;
8907 /* If we have a quit that was typed in another frame, and
8908 quit_throw_to_read_char switched buffers,
8909 replay to get the right keymap. */
8911 && XINT (key
) == quit_char
8912 && current_buffer
!= starting_buffer
)
8915 XVECTOR (raw_keybuf
)->contents
[raw_keybuf_count
++] = key
;
8919 orig_local_map
= get_local_map (PT
, current_buffer
, Qlocal_map
);
8920 orig_keymap
= get_local_map (PT
, current_buffer
, Qkeymap
);
8921 goto replay_sequence
;
8926 if (EVENT_HAS_PARAMETERS (key
)
8927 /* Either a `switch-frame' or a `select-window' event. */
8928 && EQ (EVENT_HEAD_KIND (EVENT_HEAD (key
)), Qswitch_frame
))
8930 /* If we're at the beginning of a key sequence, and the caller
8931 says it's okay, go ahead and return this event. If we're
8932 in the midst of a key sequence, delay it until the end. */
8933 if (t
> 0 || !can_return_switch_frame
)
8935 delayed_switch_frame
= key
;
8941 XVECTOR (raw_keybuf
)->contents
[raw_keybuf_count
++] = key
;
8944 /* Clicks in non-text areas get prefixed by the symbol
8945 in their CHAR-ADDRESS field. For example, a click on
8946 the mode line is prefixed by the symbol `mode-line'.
8948 Furthermore, key sequences beginning with mouse clicks
8949 are read using the keymaps of the buffer clicked on, not
8950 the current buffer. So we may have to switch the buffer
8953 When we turn one event into two events, we must make sure
8954 that neither of the two looks like the original--so that,
8955 if we replay the events, they won't be expanded again.
8956 If not for this, such reexpansion could happen either here
8957 or when user programs play with this-command-keys. */
8958 if (EVENT_HAS_PARAMETERS (key
))
8963 kind
= EVENT_HEAD_KIND (EVENT_HEAD (key
));
8964 if (EQ (kind
, Qmouse_click
))
8966 Lisp_Object window
, posn
;
8968 window
= POSN_WINDOW (EVENT_START (key
));
8969 posn
= POSN_POSN (EVENT_START (key
));
8972 || (!NILP (fake_prefixed_keys
)
8973 && !NILP (Fmemq (key
, fake_prefixed_keys
))))
8975 /* We're looking a second time at an event for which
8976 we generated a fake prefix key. Set
8977 last_real_key_start appropriately. */
8979 last_real_key_start
= t
- 1;
8982 /* Key sequences beginning with mouse clicks are
8983 read using the keymaps in the buffer clicked on,
8984 not the current buffer. If we're at the
8985 beginning of a key sequence, switch buffers. */
8986 if (last_real_key_start
== 0
8988 && BUFFERP (XWINDOW (window
)->buffer
)
8989 && XBUFFER (XWINDOW (window
)->buffer
) != current_buffer
)
8991 XVECTOR (raw_keybuf
)->contents
[raw_keybuf_count
++] = key
;
8995 /* Arrange to go back to the original buffer once we're
8996 done reading the key sequence. Note that we can't
8997 use save_excursion_{save,restore} here, because they
8998 save point as well as the current buffer; we don't
8999 want to save point, because redisplay may change it,
9000 to accommodate a Fset_window_start or something. We
9001 don't want to do this at the top of the function,
9002 because we may get input from a subprocess which
9003 wants to change the selected window and stuff (say,
9005 record_unwind_protect (Fset_buffer
, Fcurrent_buffer ());
9007 if (! FRAME_LIVE_P (XFRAME (selected_frame
)))
9009 set_buffer_internal (XBUFFER (XWINDOW (window
)->buffer
));
9010 orig_local_map
= get_local_map (PT
, current_buffer
,
9012 orig_keymap
= get_local_map (PT
, current_buffer
, Qkeymap
);
9013 goto replay_sequence
;
9016 /* For a mouse click, get the local text-property keymap
9017 of the place clicked on, rather than point. */
9018 if (last_real_key_start
== 0
9019 && CONSP (XCDR (key
))
9020 && ! localized_local_map
)
9022 Lisp_Object map_here
, start
, pos
;
9024 localized_local_map
= 1;
9025 start
= EVENT_START (key
);
9027 if (CONSP (start
) && POSN_INBUFFER_P (start
))
9029 pos
= POSN_BUFFER_POSN (start
);
9031 && XINT (pos
) >= BEG
&& XINT (pos
) <= Z
)
9033 map_here
= get_local_map (XINT (pos
),
9034 current_buffer
, Qlocal_map
);
9035 if (!EQ (map_here
, orig_local_map
))
9037 orig_local_map
= map_here
;
9041 goto replay_sequence
;
9043 map_here
= get_local_map (XINT (pos
),
9044 current_buffer
, Qkeymap
);
9045 if (!EQ (map_here
, orig_keymap
))
9047 orig_keymap
= map_here
;
9051 goto replay_sequence
;
9057 /* Expand mode-line and scroll-bar events into two events:
9058 use posn as a fake prefix key. */
9060 && (NILP (fake_prefixed_keys
)
9061 || NILP (Fmemq (key
, fake_prefixed_keys
))))
9063 if (t
+ 1 >= bufsize
)
9064 error ("Key sequence too long");
9067 keybuf
[t
+ 1] = key
;
9070 /* Record that a fake prefix key has been generated
9071 for KEY. Don't modify the event; this would
9072 prevent proper action when the event is pushed
9073 back into unread-command-events. */
9074 fake_prefixed_keys
= Fcons (key
, fake_prefixed_keys
);
9076 /* If on a mode line string with a local keymap,
9077 reconsider the key sequence with that keymap. */
9078 if (string
= POSN_STRING (EVENT_START (key
)),
9079 (CONSP (string
) && STRINGP (XCAR (string
))))
9081 Lisp_Object pos
, map
, map2
;
9083 pos
= XCDR (string
);
9084 string
= XCAR (string
);
9086 && XINT (pos
) < SCHARS (string
))
9088 map
= Fget_text_property (pos
, Qlocal_map
, string
);
9090 orig_local_map
= map
;
9091 map2
= Fget_text_property (pos
, Qkeymap
, string
);
9094 if (!NILP (map
) || !NILP (map2
))
9095 goto replay_sequence
;
9101 else if (NILP (from_string
)
9102 && (string
= POSN_STRING (EVENT_START (key
)),
9103 (CONSP (string
) && STRINGP (XCAR (string
)))))
9105 /* For a click on a string, i.e. overlay string or a
9106 string displayed via the `display' property,
9107 consider `local-map' and `keymap' properties of
9109 Lisp_Object pos
, map
, map2
;
9111 pos
= XCDR (string
);
9112 string
= XCAR (string
);
9114 && XINT (pos
) < SCHARS (string
))
9116 map
= Fget_text_property (pos
, Qlocal_map
, string
);
9118 orig_local_map
= map
;
9119 map2
= Fget_text_property (pos
, Qkeymap
, string
);
9123 if (!NILP (map
) || !NILP (map2
))
9125 from_string
= string
;
9126 goto replay_sequence
;
9131 else if (CONSP (XCDR (key
))
9132 && CONSP (EVENT_START (key
))
9133 && CONSP (XCDR (EVENT_START (key
))))
9137 posn
= POSN_POSN (EVENT_START (key
));
9138 /* Handle menu-bar events:
9139 insert the dummy prefix event `menu-bar'. */
9140 if (EQ (posn
, Qmenu_bar
) || EQ (posn
, Qtool_bar
))
9142 if (t
+ 1 >= bufsize
)
9143 error ("Key sequence too long");
9147 /* Zap the position in key, so we know that we've
9148 expanded it, and don't try to do so again. */
9149 POSN_SET_POSN (EVENT_START (key
),
9150 Fcons (posn
, Qnil
));
9153 goto replay_sequence
;
9155 else if (CONSP (posn
))
9157 /* We're looking at the second event of a
9158 sequence which we expanded before. Set
9159 last_real_key_start appropriately. */
9160 if (last_real_key_start
== t
&& t
> 0)
9161 last_real_key_start
= t
- 1;
9166 /* We have finally decided that KEY is something we might want
9168 first_binding
= (follow_key (key
,
9169 nmaps
- first_binding
,
9170 submaps
+ first_binding
,
9171 defs
+ first_binding
,
9172 submaps
+ first_binding
)
9175 /* If KEY wasn't bound, we'll try some fallbacks. */
9176 if (first_binding
< nmaps
)
9177 /* This is needed for the following scenario:
9178 event 0: a down-event that gets dropped by calling replay_key.
9179 event 1: some normal prefix like C-h.
9180 After event 0, first_unbound is 0, after event 1 fkey.start
9181 and keytran.start are both 1, so when we see that C-h is bound,
9182 we need to update first_unbound. */
9183 first_unbound
= max (t
+ 1, first_unbound
);
9188 /* Remember the position to put an upper bound on fkey.start. */
9189 first_unbound
= min (t
, first_unbound
);
9191 head
= EVENT_HEAD (key
);
9192 if (help_char_p (head
) && t
> 0)
9194 read_key_sequence_cmd
= Vprefix_help_command
;
9196 last_nonmenu_event
= key
;
9197 /* The Microsoft C compiler can't handle the goto that
9205 Lisp_Object breakdown
;
9208 breakdown
= parse_modifiers (head
);
9209 modifiers
= XINT (XCAR (XCDR (breakdown
)));
9210 /* Attempt to reduce an unbound mouse event to a simpler
9211 event that is bound:
9212 Drags reduce to clicks.
9213 Double-clicks reduce to clicks.
9214 Triple-clicks reduce to double-clicks, then to clicks.
9215 Down-clicks are eliminated.
9216 Double-downs reduce to downs, then are eliminated.
9217 Triple-downs reduce to double-downs, then to downs,
9218 then are eliminated. */
9219 if (modifiers
& (down_modifier
| drag_modifier
9220 | double_modifier
| triple_modifier
))
9222 while (modifiers
& (down_modifier
| drag_modifier
9223 | double_modifier
| triple_modifier
))
9225 Lisp_Object new_head
, new_click
;
9226 if (modifiers
& triple_modifier
)
9227 modifiers
^= (double_modifier
| triple_modifier
);
9228 else if (modifiers
& double_modifier
)
9229 modifiers
&= ~double_modifier
;
9230 else if (modifiers
& drag_modifier
)
9231 modifiers
&= ~drag_modifier
;
9234 /* Dispose of this `down' event by simply jumping
9235 back to replay_key, to get another event.
9237 Note that if this event came from mock input,
9238 then just jumping back to replay_key will just
9239 hand it to us again. So we have to wipe out any
9242 We could delete keybuf[t] and shift everything
9243 after that to the left by one spot, but we'd also
9244 have to fix up any variable that points into
9245 keybuf, and shifting isn't really necessary
9248 Adding prefixes for non-textual mouse clicks
9249 creates two characters of mock input, and both
9250 must be thrown away. If we're only looking at
9251 the prefix now, we can just jump back to
9252 replay_key. On the other hand, if we've already
9253 processed the prefix, and now the actual click
9254 itself is giving us trouble, then we've lost the
9255 state of the keymaps we want to backtrack to, and
9256 we need to replay the whole sequence to rebuild
9259 Beyond that, only function key expansion could
9260 create more than two keys, but that should never
9261 generate mouse events, so it's okay to zero
9262 mock_input in that case too.
9264 FIXME: The above paragraph seems just plain
9265 wrong, if you consider things like
9266 xterm-mouse-mode. -stef
9268 Isn't this just the most wonderful code ever? */
9270 /* If mock_input > t + 1, the above simplification
9271 will actually end up dropping keys on the floor.
9272 This is probably OK for now, but even
9273 if mock_input <= t + 1, we need to adjust fkey
9275 Typical case [header-line down-mouse-N]:
9276 mock_input = 2, t = 1, fkey.end = 1,
9277 last_real_key_start = 0. */
9278 if (fkey
.end
> last_real_key_start
)
9280 fkey
.end
= fkey
.start
9281 = min (last_real_key_start
, fkey
.start
);
9282 fkey
.map
= fkey
.parent
;
9283 if (keytran
.end
> last_real_key_start
)
9285 keytran
.end
= keytran
.start
9286 = min (last_real_key_start
, keytran
.start
);
9287 keytran
.map
= keytran
.parent
;
9290 if (t
== last_real_key_start
)
9297 mock_input
= last_real_key_start
;
9298 goto replay_sequence
;
9303 = apply_modifiers (modifiers
, XCAR (breakdown
));
9305 = Fcons (new_head
, Fcons (EVENT_START (key
), Qnil
));
9307 /* Look for a binding for this new key. follow_key
9308 promises that it didn't munge submaps the
9309 last time we called it, since key was unbound. */
9311 = (follow_key (new_click
,
9312 nmaps
- local_first_binding
,
9313 submaps
+ local_first_binding
,
9314 defs
+ local_first_binding
,
9315 submaps
+ local_first_binding
)
9316 + local_first_binding
);
9318 /* If that click is bound, go for it. */
9319 if (first_binding
< nmaps
)
9324 /* Otherwise, we'll leave key set to the drag event. */
9331 /* Normally, last_nonmenu_event gets the previous key we read.
9332 But when a mouse popup menu is being used,
9333 we don't update last_nonmenu_event; it continues to hold the mouse
9334 event that preceded the first level of menu. */
9335 if (!used_mouse_menu
)
9336 last_nonmenu_event
= key
;
9338 /* Record what part of this_command_keys is the current key sequence. */
9339 this_single_command_key_start
= this_command_key_count
- t
;
9341 if (first_binding
< nmaps
&& NILP (submaps
[first_binding
]))
9342 /* There is a binding and it's not a prefix.
9343 There is thus no function-key in this sequence.
9344 Moving fkey.start is important in this case to allow keytran.start
9345 to go over the sequence before we return (since we keep the
9346 invariant that keytran.end <= fkey.start). */
9349 (fkey
.start
= fkey
.end
= t
, fkey
.map
= fkey
.parent
);
9352 /* If the sequence is unbound, see if we can hang a function key
9353 off the end of it. */
9354 /* Continue scan from fkey.end until we find a bound suffix. */
9355 while (fkey
.end
< t
)
9357 struct gcpro gcpro1
, gcpro2
, gcpro3
;
9360 GCPRO3 (fkey
.map
, keytran
.map
, delayed_switch_frame
);
9361 done
= keyremap_step (keybuf
, bufsize
, &fkey
,
9362 max (t
, mock_input
),
9363 /* If there's a binding (i.e.
9364 first_binding >= nmaps) we don't want
9365 to apply this function-key-mapping. */
9366 fkey
.end
+ 1 == t
&& first_binding
>= nmaps
,
9371 mock_input
= diff
+ max (t
, mock_input
);
9372 goto replay_sequence
;
9376 /* Look for this sequence in key-translation-map.
9377 Scan from keytran.end until we find a bound suffix. */
9378 while (keytran
.end
< fkey
.start
)
9380 struct gcpro gcpro1
, gcpro2
, gcpro3
;
9383 GCPRO3 (fkey
.map
, keytran
.map
, delayed_switch_frame
);
9384 done
= keyremap_step (keybuf
, bufsize
, &keytran
, max (t
, mock_input
),
9389 mock_input
= diff
+ max (t
, mock_input
);
9390 /* Adjust the function-key-map counters. */
9394 goto replay_sequence
;
9398 /* If KEY is not defined in any of the keymaps,
9399 and cannot be part of a function key or translation,
9400 and is an upper case letter
9401 use the corresponding lower-case letter instead. */
9402 if (first_binding
>= nmaps
9403 && fkey
.start
>= t
&& keytran
.start
>= t
9405 && ((((XINT (key
) & 0x3ffff)
9406 < XCHAR_TABLE (current_buffer
->downcase_table
)->size
)
9407 && UPPERCASEP (XINT (key
) & 0x3ffff))
9408 || (XINT (key
) & shift_modifier
)))
9410 Lisp_Object new_key
;
9412 original_uppercase
= key
;
9413 original_uppercase_position
= t
- 1;
9415 if (XINT (key
) & shift_modifier
)
9416 XSETINT (new_key
, XINT (key
) & ~shift_modifier
);
9418 XSETINT (new_key
, (DOWNCASE (XINT (key
) & 0x3ffff)
9419 | (XINT (key
) & ~0x3ffff)));
9421 /* We have to do this unconditionally, regardless of whether
9422 the lower-case char is defined in the keymaps, because they
9423 might get translated through function-key-map. */
9424 keybuf
[t
- 1] = new_key
;
9425 mock_input
= max (t
, mock_input
);
9427 goto replay_sequence
;
9429 /* If KEY is not defined in any of the keymaps,
9430 and cannot be part of a function key or translation,
9431 and is a shifted function key,
9432 use the corresponding unshifted function key instead. */
9433 if (first_binding
>= nmaps
9434 && fkey
.start
>= t
&& keytran
.start
>= t
9437 Lisp_Object breakdown
;
9440 breakdown
= parse_modifiers (key
);
9441 modifiers
= XINT (XCAR (XCDR (breakdown
)));
9442 if (modifiers
& shift_modifier
)
9444 Lisp_Object new_key
;
9446 original_uppercase
= key
;
9447 original_uppercase_position
= t
- 1;
9449 modifiers
&= ~shift_modifier
;
9450 new_key
= apply_modifiers (modifiers
,
9453 keybuf
[t
- 1] = new_key
;
9454 mock_input
= max (t
, mock_input
);
9455 fkey
.start
= fkey
.end
= KEYMAPP (fkey
.map
) ? 0 : bufsize
+ 1;
9456 keytran
.start
= keytran
.end
= KEYMAPP (keytran
.map
) ? 0 : bufsize
+ 1;
9458 goto replay_sequence
;
9464 read_key_sequence_cmd
= (first_binding
< nmaps
9465 ? defs
[first_binding
]
9468 unread_switch_frame
= delayed_switch_frame
;
9469 unbind_to (count
, Qnil
);
9471 /* Don't downcase the last character if the caller says don't.
9472 Don't downcase it if the result is undefined, either. */
9473 if ((dont_downcase_last
|| first_binding
>= nmaps
)
9474 && t
- 1 == original_uppercase_position
)
9475 keybuf
[t
- 1] = original_uppercase
;
9477 /* Occasionally we fabricate events, perhaps by expanding something
9478 according to function-key-map, or by adding a prefix symbol to a
9479 mouse click in the scroll bar or modeline. In this cases, return
9480 the entire generated key sequence, even if we hit an unbound
9481 prefix or a definition before the end. This means that you will
9482 be able to push back the event properly, and also means that
9483 read-key-sequence will always return a logical unit.
9486 for (; t
< mock_input
; t
++)
9488 if ((FLOATP (Vecho_keystrokes
) || INTEGERP (Vecho_keystrokes
))
9489 && NILP (Fzerop (Vecho_keystrokes
)))
9490 echo_char (keybuf
[t
]);
9491 add_command_key (keybuf
[t
]);
9500 DEFUN ("read-key-sequence", Fread_key_sequence
, Sread_key_sequence
, 1, 5, 0,
9501 doc
: /* Read a sequence of keystrokes and return as a string or vector.
9502 The sequence is sufficient to specify a non-prefix command in the
9503 current local and global maps.
9505 First arg PROMPT is a prompt string. If nil, do not prompt specially.
9506 Second (optional) arg CONTINUE-ECHO, if non-nil, means this key echos
9507 as a continuation of the previous key.
9509 The third (optional) arg DONT-DOWNCASE-LAST, if non-nil, means do not
9510 convert the last event to lower case. (Normally any upper case event
9511 is converted to lower case if the original event is undefined and the lower
9512 case equivalent is defined.) A non-nil value is appropriate for reading
9513 a key sequence to be defined.
9515 A C-g typed while in this function is treated like any other character,
9516 and `quit-flag' is not set.
9518 If the key sequence starts with a mouse click, then the sequence is read
9519 using the keymaps of the buffer of the window clicked in, not the buffer
9520 of the selected window as normal.
9522 `read-key-sequence' drops unbound button-down events, since you normally
9523 only care about the click or drag events which follow them. If a drag
9524 or multi-click event is unbound, but the corresponding click event would
9525 be bound, `read-key-sequence' turns the event into a click event at the
9526 drag's starting position. This means that you don't have to distinguish
9527 between click and drag, double, or triple events unless you want to.
9529 `read-key-sequence' prefixes mouse events on mode lines, the vertical
9530 lines separating windows, and scroll bars with imaginary keys
9531 `mode-line', `vertical-line', and `vertical-scroll-bar'.
9533 Optional fourth argument CAN-RETURN-SWITCH-FRAME non-nil means that this
9534 function will process a switch-frame event if the user switches frames
9535 before typing anything. If the user switches frames in the middle of a
9536 key sequence, or at the start of the sequence but CAN-RETURN-SWITCH-FRAME
9537 is nil, then the event will be put off until after the current key sequence.
9539 `read-key-sequence' checks `function-key-map' for function key
9540 sequences, where they wouldn't conflict with ordinary bindings. See
9541 `function-key-map' for more details.
9543 The optional fifth argument COMMAND-LOOP, if non-nil, means
9544 that this key sequence is being read by something that will
9545 read commands one after another. It should be nil if the caller
9546 will read just one key sequence. */)
9547 (prompt
, continue_echo
, dont_downcase_last
, can_return_switch_frame
,
9549 Lisp_Object prompt
, continue_echo
, dont_downcase_last
;
9550 Lisp_Object can_return_switch_frame
, command_loop
;
9552 Lisp_Object keybuf
[30];
9554 struct gcpro gcpro1
;
9555 int count
= SPECPDL_INDEX ();
9558 CHECK_STRING (prompt
);
9561 specbind (Qinput_method_exit_on_first_char
,
9562 (NILP (command_loop
) ? Qt
: Qnil
));
9563 specbind (Qinput_method_use_echo_area
,
9564 (NILP (command_loop
) ? Qt
: Qnil
));
9566 bzero (keybuf
, sizeof keybuf
);
9568 gcpro1
.nvars
= (sizeof keybuf
/sizeof (keybuf
[0]));
9570 if (NILP (continue_echo
))
9572 this_command_key_count
= 0;
9573 this_command_key_count_reset
= 0;
9574 this_single_command_key_start
= 0;
9577 #ifdef HAVE_X_WINDOWS
9578 if (display_hourglass_p
)
9579 cancel_hourglass ();
9582 i
= read_key_sequence (keybuf
, (sizeof keybuf
/sizeof (keybuf
[0])),
9583 prompt
, ! NILP (dont_downcase_last
),
9584 ! NILP (can_return_switch_frame
), 0);
9586 #if 0 /* The following is fine for code reading a key sequence and
9587 then proceeding with a lenghty computation, but it's not good
9588 for code reading keys in a loop, like an input method. */
9589 #ifdef HAVE_X_WINDOWS
9590 if (display_hourglass_p
)
9601 return unbind_to (count
, make_event_array (i
, keybuf
));
9604 DEFUN ("read-key-sequence-vector", Fread_key_sequence_vector
,
9605 Sread_key_sequence_vector
, 1, 5, 0,
9606 doc
: /* Like `read-key-sequence' but always return a vector. */)
9607 (prompt
, continue_echo
, dont_downcase_last
, can_return_switch_frame
,
9609 Lisp_Object prompt
, continue_echo
, dont_downcase_last
;
9610 Lisp_Object can_return_switch_frame
, command_loop
;
9612 Lisp_Object keybuf
[30];
9614 struct gcpro gcpro1
;
9615 int count
= SPECPDL_INDEX ();
9618 CHECK_STRING (prompt
);
9621 specbind (Qinput_method_exit_on_first_char
,
9622 (NILP (command_loop
) ? Qt
: Qnil
));
9623 specbind (Qinput_method_use_echo_area
,
9624 (NILP (command_loop
) ? Qt
: Qnil
));
9626 bzero (keybuf
, sizeof keybuf
);
9628 gcpro1
.nvars
= (sizeof keybuf
/sizeof (keybuf
[0]));
9630 if (NILP (continue_echo
))
9632 this_command_key_count
= 0;
9633 this_command_key_count_reset
= 0;
9634 this_single_command_key_start
= 0;
9637 #ifdef HAVE_X_WINDOWS
9638 if (display_hourglass_p
)
9639 cancel_hourglass ();
9642 i
= read_key_sequence (keybuf
, (sizeof keybuf
/sizeof (keybuf
[0])),
9643 prompt
, ! NILP (dont_downcase_last
),
9644 ! NILP (can_return_switch_frame
), 0);
9646 #ifdef HAVE_X_WINDOWS
9647 if (display_hourglass_p
)
9657 return unbind_to (count
, Fvector (i
, keybuf
));
9660 DEFUN ("command-execute", Fcommand_execute
, Scommand_execute
, 1, 4, 0,
9661 doc
: /* Execute CMD as an editor command.
9662 CMD must be a symbol that satisfies the `commandp' predicate.
9663 Optional second arg RECORD-FLAG non-nil
9664 means unconditionally put this command in `command-history'.
9665 Otherwise, that is done only if an arg is read using the minibuffer.
9666 The argument KEYS specifies the value to use instead of (this-command-keys)
9667 when reading the arguments; if it is nil, (this-command-keys) is used.
9668 The argument SPECIAL, if non-nil, means that this command is executing
9669 a special event, so ignore the prefix argument and don't clear it. */)
9670 (cmd
, record_flag
, keys
, special
)
9671 Lisp_Object cmd
, record_flag
, keys
, special
;
9673 register Lisp_Object final
;
9674 register Lisp_Object tem
;
9675 Lisp_Object prefixarg
;
9676 struct backtrace backtrace
;
9677 extern int debug_on_next_call
;
9679 debug_on_next_call
= 0;
9683 prefixarg
= current_kboard
->Vprefix_arg
;
9684 Vcurrent_prefix_arg
= prefixarg
;
9685 current_kboard
->Vprefix_arg
= Qnil
;
9692 tem
= Fget (cmd
, Qdisabled
);
9693 if (!NILP (tem
) && !NILP (Vrun_hooks
))
9695 tem
= Fsymbol_value (Qdisabled_command_function
);
9697 return call1 (Vrun_hooks
, Qdisabled_command_function
);
9703 final
= Findirect_function (cmd
);
9705 if (CONSP (final
) && (tem
= Fcar (final
), EQ (tem
, Qautoload
)))
9707 struct gcpro gcpro1
, gcpro2
;
9709 GCPRO2 (cmd
, prefixarg
);
9710 do_autoload (final
, cmd
);
9717 if (STRINGP (final
) || VECTORP (final
))
9719 /* If requested, place the macro in the command history. For
9720 other sorts of commands, call-interactively takes care of
9722 if (!NILP (record_flag
))
9725 = Fcons (Fcons (Qexecute_kbd_macro
,
9726 Fcons (final
, Fcons (prefixarg
, Qnil
))),
9729 /* Don't keep command history around forever. */
9730 if (NUMBERP (Vhistory_length
) && XINT (Vhistory_length
) > 0)
9732 tem
= Fnthcdr (Vhistory_length
, Vcommand_history
);
9734 XSETCDR (tem
, Qnil
);
9738 return Fexecute_kbd_macro (final
, prefixarg
, Qnil
);
9741 if (CONSP (final
) || SUBRP (final
) || COMPILEDP (final
))
9743 backtrace
.next
= backtrace_list
;
9744 backtrace_list
= &backtrace
;
9745 backtrace
.function
= &Qcall_interactively
;
9746 backtrace
.args
= &cmd
;
9747 backtrace
.nargs
= 1;
9748 backtrace
.evalargs
= 0;
9749 backtrace
.debug_on_exit
= 0;
9751 tem
= Fcall_interactively (cmd
, record_flag
, keys
);
9753 backtrace_list
= backtrace
.next
;
9761 DEFUN ("execute-extended-command", Fexecute_extended_command
, Sexecute_extended_command
,
9763 doc
: /* Read function name, then read its arguments and call it. */)
9765 Lisp_Object prefixarg
;
9767 Lisp_Object function
;
9769 int saved_last_point_position
;
9770 Lisp_Object saved_keys
, saved_last_point_position_buffer
;
9771 Lisp_Object bindings
, value
;
9772 struct gcpro gcpro1
, gcpro2
, gcpro3
;
9773 #ifdef HAVE_X_WINDOWS
9774 /* The call to Fcompleting_read wil start and cancel the hourglass,
9775 but if the hourglass was already scheduled, this means that no
9776 hourglass will be shown for the actual M-x command itself.
9777 So we restart it if it is already scheduled. Note that checking
9778 hourglass_shown_p is not enough, normally the hourglass is not shown,
9779 just scheduled to be shown. */
9780 int hstarted
= hourglass_started ();
9783 saved_keys
= Fvector (this_command_key_count
,
9784 XVECTOR (this_command_keys
)->contents
);
9785 saved_last_point_position_buffer
= last_point_position_buffer
;
9786 saved_last_point_position
= last_point_position
;
9788 GCPRO3 (saved_keys
, prefixarg
, saved_last_point_position_buffer
);
9790 if (EQ (prefixarg
, Qminus
))
9792 else if (CONSP (prefixarg
) && XINT (XCAR (prefixarg
)) == 4)
9793 strcpy (buf
, "C-u ");
9794 else if (CONSP (prefixarg
) && INTEGERP (XCAR (prefixarg
)))
9795 sprintf (buf
, "%ld ", (long) XINT (XCAR (prefixarg
)));
9796 else if (INTEGERP (prefixarg
))
9797 sprintf (buf
, "%ld ", (long) XINT (prefixarg
));
9799 /* This isn't strictly correct if execute-extended-command
9800 is bound to anything else. Perhaps it should use
9801 this_command_keys? */
9802 strcat (buf
, "M-x ");
9804 /* Prompt with buf, and then read a string, completing from and
9805 restricting to the set of all defined commands. Don't provide
9806 any initial input. Save the command read on the extended-command
9808 function
= Fcompleting_read (build_string (buf
),
9809 Vobarray
, Qcommandp
,
9810 Qt
, Qnil
, Qextended_command_history
, Qnil
,
9813 #ifdef HAVE_X_WINDOWS
9814 if (hstarted
) start_hourglass ();
9817 if (STRINGP (function
) && SCHARS (function
) == 0)
9818 error ("No command name given");
9820 /* Set this_command_keys to the concatenation of saved_keys and
9821 function, followed by a RET. */
9826 this_command_key_count
= 0;
9827 this_command_key_count_reset
= 0;
9828 this_single_command_key_start
= 0;
9830 keys
= XVECTOR (saved_keys
)->contents
;
9831 for (i
= 0; i
< XVECTOR (saved_keys
)->size
; i
++)
9832 add_command_key (keys
[i
]);
9834 for (i
= 0; i
< SCHARS (function
); i
++)
9835 add_command_key (Faref (function
, make_number (i
)));
9837 add_command_key (make_number ('\015'));
9840 last_point_position
= saved_last_point_position
;
9841 last_point_position_buffer
= saved_last_point_position_buffer
;
9845 function
= Fintern (function
, Qnil
);
9846 current_kboard
->Vprefix_arg
= prefixarg
;
9847 Vthis_command
= function
;
9848 real_this_command
= function
;
9850 /* If enabled, show which key runs this command. */
9851 if (!NILP (Vsuggest_key_bindings
)
9852 && NILP (Vexecuting_kbd_macro
)
9853 && SYMBOLP (function
))
9854 bindings
= Fwhere_is_internal (function
, Voverriding_local_map
,
9860 GCPRO2 (bindings
, value
);
9861 value
= Fcommand_execute (function
, Qt
, Qnil
, Qnil
);
9863 /* If the command has a key binding, print it now. */
9864 if (!NILP (bindings
)
9865 && ! (VECTORP (bindings
) && EQ (Faref (bindings
, make_number (0)),
9868 /* But first wait, and skip the message if there is input. */
9870 if (!NILP (echo_area_buffer
[0]))
9871 /* This command displayed something in the echo area;
9872 so wait a few seconds, then display our suggestion message. */
9873 delay_time
= (NUMBERP (Vsuggest_key_bindings
)
9874 ? XINT (Vsuggest_key_bindings
) : 2);
9876 /* This command left the echo area empty,
9877 so display our message immediately. */
9880 if (!NILP (Fsit_for (make_number (delay_time
), Qnil
, Qnil
))
9881 && ! CONSP (Vunread_command_events
))
9883 Lisp_Object binding
;
9885 int message_p
= push_message ();
9886 int count
= SPECPDL_INDEX ();
9888 record_unwind_protect (pop_message_unwind
, Qnil
);
9889 binding
= Fkey_description (bindings
, Qnil
);
9892 = (char *) alloca (SCHARS (SYMBOL_NAME (function
))
9895 sprintf (newmessage
, "You can run the command `%s' with %s",
9896 SDATA (SYMBOL_NAME (function
)),
9898 message2_nolog (newmessage
,
9899 strlen (newmessage
),
9900 STRING_MULTIBYTE (binding
));
9901 if (!NILP (Fsit_for ((NUMBERP (Vsuggest_key_bindings
)
9902 ? Vsuggest_key_bindings
: make_number (2)),
9907 unbind_to (count
, Qnil
);
9911 RETURN_UNGCPRO (value
);
9915 /* Return nonzero if input events are pending. */
9918 detect_input_pending ()
9921 get_input_pending (&input_pending
, 0);
9923 return input_pending
;
9926 /* Return nonzero if input events other than mouse movements are
9930 detect_input_pending_ignore_squeezables ()
9933 get_input_pending (&input_pending
, READABLE_EVENTS_IGNORE_SQUEEZABLES
);
9935 return input_pending
;
9938 /* Return nonzero if input events are pending, and run any pending timers. */
9941 detect_input_pending_run_timers (do_display
)
9944 int old_timers_run
= timers_run
;
9947 get_input_pending (&input_pending
, READABLE_EVENTS_DO_TIMERS_NOW
);
9949 if (old_timers_run
!= timers_run
&& do_display
)
9951 redisplay_preserve_echo_area (8);
9952 /* The following fixes a bug when using lazy-lock with
9953 lazy-lock-defer-on-the-fly set to t, i.e. when fontifying
9954 from an idle timer function. The symptom of the bug is that
9955 the cursor sometimes doesn't become visible until the next X
9956 event is processed. --gerd. */
9958 rif
->flush_display (NULL
);
9961 return input_pending
;
9964 /* This is called in some cases before a possible quit.
9965 It cases the next call to detect_input_pending to recompute input_pending.
9966 So calling this function unnecessarily can't do any harm. */
9969 clear_input_pending ()
9974 /* Return nonzero if there are pending requeued events.
9975 This isn't used yet. The hope is to make wait_reading_process_output
9976 call it, and return if it runs Lisp code that unreads something.
9977 The problem is, kbd_buffer_get_event needs to be fixed to know what
9978 to do in that case. It isn't trivial. */
9981 requeued_events_pending_p ()
9983 return (!NILP (Vunread_command_events
) || unread_command_char
!= -1);
9987 DEFUN ("input-pending-p", Finput_pending_p
, Sinput_pending_p
, 0, 0, 0,
9988 doc
: /* Return t if command input is currently available with no wait.
9989 Actually, the value is nil only if we can be sure that no input is available;
9990 if there is a doubt, the value is t. */)
9993 if (!NILP (Vunread_command_events
) || unread_command_char
!= -1)
9996 get_input_pending (&input_pending
,
9997 READABLE_EVENTS_DO_TIMERS_NOW
9998 | READABLE_EVENTS_FILTER_EVENTS
);
9999 return input_pending
> 0 ? Qt
: Qnil
;
10002 DEFUN ("recent-keys", Frecent_keys
, Srecent_keys
, 0, 0, 0,
10003 doc
: /* Return vector of last 100 events, not counting those from keyboard macros. */)
10006 Lisp_Object
*keys
= XVECTOR (recent_keys
)->contents
;
10009 if (total_keys
< NUM_RECENT_KEYS
)
10010 return Fvector (total_keys
, keys
);
10013 val
= Fvector (NUM_RECENT_KEYS
, keys
);
10014 bcopy (keys
+ recent_keys_index
,
10015 XVECTOR (val
)->contents
,
10016 (NUM_RECENT_KEYS
- recent_keys_index
) * sizeof (Lisp_Object
));
10018 XVECTOR (val
)->contents
+ NUM_RECENT_KEYS
- recent_keys_index
,
10019 recent_keys_index
* sizeof (Lisp_Object
));
10024 DEFUN ("this-command-keys", Fthis_command_keys
, Sthis_command_keys
, 0, 0, 0,
10025 doc
: /* Return the key sequence that invoked this command.
10026 However, if the command has called `read-key-sequence', it returns
10027 the last key sequence that has been read.
10028 The value is a string or a vector. */)
10031 return make_event_array (this_command_key_count
,
10032 XVECTOR (this_command_keys
)->contents
);
10035 DEFUN ("this-command-keys-vector", Fthis_command_keys_vector
, Sthis_command_keys_vector
, 0, 0, 0,
10036 doc
: /* Return the key sequence that invoked this command, as a vector.
10037 However, if the command has called `read-key-sequence', it returns
10038 the last key sequence that has been read. */)
10041 return Fvector (this_command_key_count
,
10042 XVECTOR (this_command_keys
)->contents
);
10045 DEFUN ("this-single-command-keys", Fthis_single_command_keys
,
10046 Sthis_single_command_keys
, 0, 0, 0,
10047 doc
: /* Return the key sequence that invoked this command.
10048 More generally, it returns the last key sequence read, either by
10049 the command loop or by `read-key-sequence'.
10050 Unlike `this-command-keys', this function's value
10051 does not include prefix arguments.
10052 The value is always a vector. */)
10055 return Fvector (this_command_key_count
10056 - this_single_command_key_start
,
10057 (XVECTOR (this_command_keys
)->contents
10058 + this_single_command_key_start
));
10061 DEFUN ("this-single-command-raw-keys", Fthis_single_command_raw_keys
,
10062 Sthis_single_command_raw_keys
, 0, 0, 0,
10063 doc
: /* Return the raw events that were read for this command.
10064 More generally, it returns the last key sequence read, either by
10065 the command loop or by `read-key-sequence'.
10066 Unlike `this-single-command-keys', this function's value
10067 shows the events before all translations (except for input methods).
10068 The value is always a vector. */)
10071 return Fvector (raw_keybuf_count
,
10072 (XVECTOR (raw_keybuf
)->contents
));
10075 DEFUN ("reset-this-command-lengths", Freset_this_command_lengths
,
10076 Sreset_this_command_lengths
, 0, 0, 0,
10077 doc
: /* Make the unread events replace the last command and echo.
10078 Used in `universal-argument-other-key'.
10080 `universal-argument-other-key' rereads the event just typed.
10081 It then gets translated through `function-key-map'.
10082 The translated event has to replace the real events,
10083 both in the value of (this-command-keys) and in echoing.
10084 To achieve this, `universal-argument-other-key' calls
10085 `reset-this-command-lengths', which discards the record of reading
10086 these events the first time. */)
10089 this_command_key_count
= before_command_key_count
;
10090 if (this_command_key_count
< this_single_command_key_start
)
10091 this_single_command_key_start
= this_command_key_count
;
10093 echo_truncate (before_command_echo_length
);
10095 /* Cause whatever we put into unread-command-events
10096 to echo as if it were being freshly read from the keyboard. */
10097 this_command_key_count_reset
= 1;
10102 DEFUN ("clear-this-command-keys", Fclear_this_command_keys
,
10103 Sclear_this_command_keys
, 0, 1, 0,
10104 doc
: /* Clear out the vector that `this-command-keys' returns.
10105 Also clear the record of the last 100 events, unless optional arg
10106 KEEP-RECORD is non-nil. */)
10108 Lisp_Object keep_record
;
10112 this_command_key_count
= 0;
10113 this_command_key_count_reset
= 0;
10115 if (NILP (keep_record
))
10117 for (i
= 0; i
< XVECTOR (recent_keys
)->size
; ++i
)
10118 XVECTOR (recent_keys
)->contents
[i
] = Qnil
;
10120 recent_keys_index
= 0;
10125 DEFUN ("recursion-depth", Frecursion_depth
, Srecursion_depth
, 0, 0, 0,
10126 doc
: /* Return the current depth in recursive edits. */)
10130 XSETFASTINT (temp
, command_loop_level
+ minibuf_level
);
10134 DEFUN ("open-dribble-file", Fopen_dribble_file
, Sopen_dribble_file
, 1, 1,
10135 "FOpen dribble file: ",
10136 doc
: /* Start writing all keyboard characters to a dribble file called FILE.
10137 If FILE is nil, close any open dribble file. */)
10148 file
= Fexpand_file_name (file
, Qnil
);
10149 dribble
= fopen (SDATA (file
), "w");
10151 report_file_error ("Opening dribble", Fcons (file
, Qnil
));
10156 DEFUN ("discard-input", Fdiscard_input
, Sdiscard_input
, 0, 0, 0,
10157 doc
: /* Discard the contents of the terminal input buffer.
10158 Also end any kbd macro being defined. */)
10161 if (!NILP (current_kboard
->defining_kbd_macro
))
10163 /* Discard the last command from the macro. */
10164 Fcancel_kbd_macro_events ();
10168 update_mode_lines
++;
10170 Vunread_command_events
= Qnil
;
10171 unread_command_char
= -1;
10173 discard_tty_input ();
10175 kbd_fetch_ptr
= kbd_store_ptr
;
10181 DEFUN ("suspend-emacs", Fsuspend_emacs
, Ssuspend_emacs
, 0, 1, "",
10182 doc
: /* Stop Emacs and return to superior process. You can resume later.
10183 If `cannot-suspend' is non-nil, or if the system doesn't support job
10184 control, run a subshell instead.
10186 If optional arg STUFFSTRING is non-nil, its characters are stuffed
10187 to be read as terminal input by Emacs's parent, after suspension.
10189 Before suspending, run the normal hook `suspend-hook'.
10190 After resumption run the normal hook `suspend-resume-hook'.
10192 Some operating systems cannot stop the Emacs process and resume it later.
10193 On such systems, Emacs starts a subshell instead of suspending. */)
10195 Lisp_Object stuffstring
;
10197 int count
= SPECPDL_INDEX ();
10198 int old_height
, old_width
;
10200 struct gcpro gcpro1
;
10202 if (!NILP (stuffstring
))
10203 CHECK_STRING (stuffstring
);
10205 /* Run the functions in suspend-hook. */
10206 if (!NILP (Vrun_hooks
))
10207 call1 (Vrun_hooks
, intern ("suspend-hook"));
10209 GCPRO1 (stuffstring
);
10210 get_frame_size (&old_width
, &old_height
);
10211 reset_sys_modes ();
10212 /* sys_suspend can get an error if it tries to fork a subshell
10213 and the system resources aren't available for that. */
10214 record_unwind_protect ((Lisp_Object (*) P_ ((Lisp_Object
))) init_sys_modes
,
10216 stuff_buffered_input (stuffstring
);
10217 if (cannot_suspend
)
10221 unbind_to (count
, Qnil
);
10223 /* Check if terminal/window size has changed.
10224 Note that this is not useful when we are running directly
10225 with a window system; but suspend should be disabled in that case. */
10226 get_frame_size (&width
, &height
);
10227 if (width
!= old_width
|| height
!= old_height
)
10228 change_frame_size (SELECTED_FRAME (), height
, width
, 0, 0, 0);
10230 /* Run suspend-resume-hook. */
10231 if (!NILP (Vrun_hooks
))
10232 call1 (Vrun_hooks
, intern ("suspend-resume-hook"));
10238 /* If STUFFSTRING is a string, stuff its contents as pending terminal input.
10239 Then in any case stuff anything Emacs has read ahead and not used. */
10242 stuff_buffered_input (stuffstring
)
10243 Lisp_Object stuffstring
;
10245 #ifdef SIGTSTP /* stuff_char is defined if SIGTSTP. */
10246 register unsigned char *p
;
10248 if (STRINGP (stuffstring
))
10250 register int count
;
10252 p
= SDATA (stuffstring
);
10253 count
= SBYTES (stuffstring
);
10254 while (count
-- > 0)
10259 /* Anything we have read ahead, put back for the shell to read. */
10260 /* ?? What should this do when we have multiple keyboards??
10261 Should we ignore anything that was typed in at the "wrong" kboard?
10263 rms: we should stuff everything back into the kboard
10265 for (; kbd_fetch_ptr
!= kbd_store_ptr
; kbd_fetch_ptr
++)
10268 if (kbd_fetch_ptr
== kbd_buffer
+ KBD_BUFFER_SIZE
)
10269 kbd_fetch_ptr
= kbd_buffer
;
10270 if (kbd_fetch_ptr
->kind
== ASCII_KEYSTROKE_EVENT
)
10271 stuff_char (kbd_fetch_ptr
->code
);
10273 clear_event (kbd_fetch_ptr
);
10277 #endif /* SIGTSTP */
10281 set_waiting_for_input (time_to_clear
)
10282 EMACS_TIME
*time_to_clear
;
10284 input_available_clear_time
= time_to_clear
;
10286 /* Tell interrupt_signal to throw back to read_char, */
10287 waiting_for_input
= 1;
10289 /* If interrupt_signal was called before and buffered a C-g,
10290 make it run again now, to avoid timing error. */
10291 if (!NILP (Vquit_flag
))
10292 quit_throw_to_read_char ();
10296 clear_waiting_for_input ()
10298 /* Tell interrupt_signal not to throw back to read_char, */
10299 waiting_for_input
= 0;
10300 input_available_clear_time
= 0;
10303 /* This routine is called at interrupt level in response to C-g.
10305 If interrupt_input, this is the handler for SIGINT. Otherwise, it
10306 is called from kbd_buffer_store_event, in handling SIGIO or
10309 If `waiting_for_input' is non zero, then unless `echoing' is
10310 nonzero, immediately throw back to read_char.
10312 Otherwise it sets the Lisp variable quit-flag not-nil. This causes
10313 eval to throw, when it gets a chance. If quit-flag is already
10314 non-nil, it stops the job right away. */
10317 interrupt_signal (signalnum
) /* If we don't have an argument, */
10318 int signalnum
; /* some compilers complain in signal calls. */
10321 /* Must preserve main program's value of errno. */
10322 int old_errno
= errno
;
10323 struct frame
*sf
= SELECTED_FRAME ();
10325 #if defined (USG) && !defined (POSIX_SIGNALS)
10326 if (!read_socket_hook
&& NILP (Vwindow_system
))
10328 /* USG systems forget handlers when they are used;
10329 must reestablish each time */
10330 signal (SIGINT
, interrupt_signal
);
10331 signal (SIGQUIT
, interrupt_signal
);
10335 SIGNAL_THREAD_CHECK (signalnum
);
10338 if (!NILP (Vquit_flag
)
10339 && (FRAME_TERMCAP_P (sf
) || FRAME_MSDOS_P (sf
)))
10341 /* If SIGINT isn't blocked, don't let us be interrupted by
10342 another SIGINT, it might be harmful due to non-reentrancy
10343 in I/O functions. */
10344 sigblock (sigmask (SIGINT
));
10347 reset_sys_modes ();
10349 #ifdef SIGTSTP /* Support possible in later USG versions */
10351 * On systems which can suspend the current process and return to the original
10352 * shell, this command causes the user to end up back at the shell.
10353 * The "Auto-save" and "Abort" questions are not asked until
10354 * the user elects to return to emacs, at which point he can save the current
10355 * job and either dump core or continue.
10360 if (sys_suspend () == -1)
10362 printf ("Not running as a subprocess;\n");
10363 printf ("you can continue or abort.\n");
10365 #else /* not VMS */
10366 /* Perhaps should really fork an inferior shell?
10367 But that would not provide any way to get back
10368 to the original shell, ever. */
10369 printf ("No support for stopping a process on this operating system;\n");
10370 printf ("you can continue or abort.\n");
10371 #endif /* not VMS */
10372 #endif /* not SIGTSTP */
10374 /* We must remain inside the screen area when the internal terminal
10375 is used. Note that [Enter] is not echoed by dos. */
10378 /* It doesn't work to autosave while GC is in progress;
10379 the code used for auto-saving doesn't cope with the mark bit. */
10380 if (!gc_in_progress
)
10382 printf ("Auto-save? (y or n) ");
10384 if (((c
= getchar ()) & ~040) == 'Y')
10386 Fdo_auto_save (Qt
, Qnil
);
10388 printf ("\r\nAuto-save done");
10389 #else /* not MSDOS */
10390 printf ("Auto-save done\n");
10391 #endif /* not MSDOS */
10393 while (c
!= '\n') c
= getchar ();
10397 /* During GC, it must be safe to reenable quitting again. */
10398 Vinhibit_quit
= Qnil
;
10401 #endif /* not MSDOS */
10402 printf ("Garbage collection in progress; cannot auto-save now\r\n");
10403 printf ("but will instead do a real quit after garbage collection ends\r\n");
10408 printf ("\r\nAbort? (y or n) ");
10409 #else /* not MSDOS */
10411 printf ("Abort (and enter debugger)? (y or n) ");
10412 #else /* not VMS */
10413 printf ("Abort (and dump core)? (y or n) ");
10414 #endif /* not VMS */
10415 #endif /* not MSDOS */
10417 if (((c
= getchar ()) & ~040) == 'Y')
10419 while (c
!= '\n') c
= getchar ();
10421 printf ("\r\nContinuing...\r\n");
10422 #else /* not MSDOS */
10423 printf ("Continuing...\n");
10424 #endif /* not MSDOS */
10431 /* If executing a function that wants to be interrupted out of
10432 and the user has not deferred quitting by binding `inhibit-quit'
10433 then quit right away. */
10434 if (immediate_quit
&& NILP (Vinhibit_quit
))
10436 struct gl_state_s saved
;
10437 struct gcpro gcpro1
, gcpro2
, gcpro3
, gcpro4
;
10439 immediate_quit
= 0;
10442 GCPRO4 (saved
.object
, saved
.global_code
,
10443 saved
.current_syntax_table
, saved
.old_prop
);
10444 Fsignal (Qquit
, Qnil
);
10449 /* Else request quit when it's safe */
10453 if (waiting_for_input
&& !echoing
)
10454 quit_throw_to_read_char ();
10459 /* Handle a C-g by making read_char return C-g. */
10462 quit_throw_to_read_char ()
10465 /* Prevent another signal from doing this before we finish. */
10466 clear_waiting_for_input ();
10469 Vunread_command_events
= Qnil
;
10470 unread_command_char
= -1;
10472 #if 0 /* Currently, sit_for is called from read_char without turning
10473 off polling. And that can call set_waiting_for_input.
10474 It seems to be harmless. */
10475 #ifdef POLL_FOR_INPUT
10476 /* May be > 1 if in recursive minibuffer. */
10477 if (poll_suppress_count
== 0)
10481 if (FRAMEP (internal_last_event_frame
)
10482 && !EQ (internal_last_event_frame
, selected_frame
))
10483 do_switch_frame (make_lispy_switch_frame (internal_last_event_frame
),
10486 _longjmp (getcjmp
, 1);
10489 DEFUN ("set-input-mode", Fset_input_mode
, Sset_input_mode
, 3, 4, 0,
10490 doc
: /* Set mode of reading keyboard input.
10491 First arg INTERRUPT non-nil means use input interrupts;
10492 nil means use CBREAK mode.
10493 Second arg FLOW non-nil means use ^S/^Q flow control for output to terminal
10494 (no effect except in CBREAK mode).
10495 Third arg META t means accept 8-bit input (for a Meta key).
10496 META nil means ignore the top bit, on the assumption it is parity.
10497 Otherwise, accept 8-bit input and don't use the top bit for Meta.
10498 Optional fourth arg QUIT if non-nil specifies character to use for quitting.
10499 See also `current-input-mode'. */)
10500 (interrupt
, flow
, meta
, quit
)
10501 Lisp_Object interrupt
, flow
, meta
, quit
;
10504 && (!INTEGERP (quit
) || XINT (quit
) < 0 || XINT (quit
) > 0400))
10505 error ("set-input-mode: QUIT must be an ASCII character");
10507 #ifdef POLL_FOR_INPUT
10512 /* this causes startup screen to be restored and messes with the mouse */
10513 reset_sys_modes ();
10517 /* Note SIGIO has been undef'd if FIONREAD is missing. */
10518 if (read_socket_hook
)
10520 /* When using X, don't give the user a real choice,
10521 because we haven't implemented the mechanisms to support it. */
10522 #ifdef NO_SOCK_SIGIO
10523 interrupt_input
= 0;
10524 #else /* not NO_SOCK_SIGIO */
10525 interrupt_input
= 1;
10526 #endif /* NO_SOCK_SIGIO */
10529 interrupt_input
= !NILP (interrupt
);
10530 #else /* not SIGIO */
10531 interrupt_input
= 0;
10532 #endif /* not SIGIO */
10534 /* Our VMS input only works by interrupts, as of now. */
10536 interrupt_input
= 1;
10539 flow_control
= !NILP (flow
);
10542 else if (EQ (meta
, Qt
))
10547 /* Don't let this value be out of range. */
10548 quit_char
= XINT (quit
) & (meta_key
? 0377 : 0177);
10554 #ifdef POLL_FOR_INPUT
10555 poll_suppress_count
= 1;
10561 DEFUN ("current-input-mode", Fcurrent_input_mode
, Scurrent_input_mode
, 0, 0, 0,
10562 doc
: /* Return information about the way Emacs currently reads keyboard input.
10563 The value is a list of the form (INTERRUPT FLOW META QUIT), where
10564 INTERRUPT is non-nil if Emacs is using interrupt-driven input; if
10565 nil, Emacs is using CBREAK mode.
10566 FLOW is non-nil if Emacs uses ^S/^Q flow control for output to the
10567 terminal; this does not apply if Emacs uses interrupt-driven input.
10568 META is t if accepting 8-bit input with 8th bit as Meta flag.
10569 META nil means ignoring the top bit, on the assumption it is parity.
10570 META is neither t nor nil if accepting 8-bit input and using
10571 all 8 bits as the character code.
10572 QUIT is the character Emacs currently uses to quit.
10573 The elements of this list correspond to the arguments of
10574 `set-input-mode'. */)
10577 Lisp_Object val
[4];
10579 val
[0] = interrupt_input
? Qt
: Qnil
;
10580 val
[1] = flow_control
? Qt
: Qnil
;
10581 val
[2] = meta_key
== 2 ? make_number (0) : meta_key
== 1 ? Qt
: Qnil
;
10582 XSETFASTINT (val
[3], quit_char
);
10584 return Flist (sizeof (val
) / sizeof (val
[0]), val
);
10587 DEFUN ("posn-at-x-y", Fposn_at_x_y
, Sposn_at_x_y
, 2, 4, 0,
10588 doc
: /* Return position information for pixel coordinates X and Y.
10589 By default, X and Y are relative to text area of the selected window.
10590 Optional third arg FRAME-OR-WINDOW non-nil specifies frame or window.
10591 If optional fourth arg WHOLE is non-nil, X is relative to the left
10592 edge of the window.
10594 The return value is similar to a mouse click position:
10595 (WINDOW AREA-OR-POS (X . Y) TIMESTAMP OBJECT POS (COL . ROW)
10596 IMAGE (DX . DY) (WIDTH . HEIGHT))
10597 The `posn-' functions access elements of such lists. */)
10598 (x
, y
, frame_or_window
, whole
)
10599 Lisp_Object x
, y
, frame_or_window
, whole
;
10604 if (NILP (frame_or_window
))
10605 frame_or_window
= selected_window
;
10607 if (WINDOWP (frame_or_window
))
10611 CHECK_LIVE_WINDOW (frame_or_window
);
10613 w
= XWINDOW (frame_or_window
);
10614 XSETINT (x
, (XINT (x
)
10615 + WINDOW_LEFT_EDGE_X (w
)
10617 ? window_box_left_offset (w
, TEXT_AREA
)
10619 XSETINT (y
, WINDOW_TO_FRAME_PIXEL_Y (w
, XINT (y
)));
10620 frame_or_window
= w
->frame
;
10623 CHECK_LIVE_FRAME (frame_or_window
);
10625 return make_lispy_position (XFRAME (frame_or_window
), &x
, &y
, 0);
10628 DEFUN ("posn-at-point", Fposn_at_point
, Sposn_at_point
, 0, 2, 0,
10629 doc
: /* Return position information for buffer POS in WINDOW.
10630 POS defaults to point in WINDOW; WINDOW defaults to the selected window.
10632 Return nil if position is not visible in window. Otherwise,
10633 the return value is similar to that returned by `event-start' for
10634 a mouse click at the upper left corner of the glyph corresponding
10635 to the given buffer position:
10636 (WINDOW AREA-OR-POS (X . Y) TIMESTAMP OBJECT POS (COL . ROW)
10637 IMAGE (DX . DY) (WIDTH . HEIGHT))
10638 The `posn-' functions access elements of such lists. */)
10640 Lisp_Object pos
, window
;
10645 window
= selected_window
;
10647 tem
= Fpos_visible_in_window_p (pos
, window
, Qt
);
10650 Lisp_Object x
= XCAR (tem
);
10651 Lisp_Object y
= XCAR (XCDR (tem
));
10653 /* Point invisible due to hscrolling? */
10656 tem
= Fposn_at_x_y (x
, y
, window
, Qnil
);
10664 * Set up a new kboard object with reasonable initial values.
10670 kb
->Voverriding_terminal_local_map
= Qnil
;
10671 kb
->Vlast_command
= Qnil
;
10672 kb
->Vreal_last_command
= Qnil
;
10673 kb
->Vprefix_arg
= Qnil
;
10674 kb
->Vlast_prefix_arg
= Qnil
;
10675 kb
->kbd_queue
= Qnil
;
10676 kb
->kbd_queue_has_data
= 0;
10677 kb
->immediate_echo
= 0;
10678 kb
->echo_string
= Qnil
;
10679 kb
->echo_after_prompt
= -1;
10680 kb
->kbd_macro_buffer
= 0;
10681 kb
->kbd_macro_bufsize
= 0;
10682 kb
->defining_kbd_macro
= Qnil
;
10683 kb
->Vlast_kbd_macro
= Qnil
;
10684 kb
->reference_count
= 0;
10685 kb
->Vsystem_key_alist
= Qnil
;
10686 kb
->system_key_syms
= Qnil
;
10687 kb
->Vdefault_minibuffer_frame
= Qnil
;
10691 * Destroy the contents of a kboard object, but not the object itself.
10692 * We use this just before deleting it, or if we're going to initialize
10693 * it a second time.
10699 if (kb
->kbd_macro_buffer
)
10700 xfree (kb
->kbd_macro_buffer
);
10703 #ifdef MULTI_KBOARD
10705 /* Free KB and memory referenced from it. */
10713 for (kbp
= &all_kboards
; *kbp
!= kb
; kbp
= &(*kbp
)->next_kboard
)
10716 *kbp
= kb
->next_kboard
;
10718 /* Prevent a dangling reference to KB. */
10719 if (kb
== current_kboard
10720 && FRAMEP (selected_frame
)
10721 && FRAME_LIVE_P (XFRAME (selected_frame
)))
10723 current_kboard
= XFRAME (selected_frame
)->kboard
;
10724 if (current_kboard
== kb
)
10732 #endif /* MULTI_KBOARD */
10737 /* This is correct before outermost invocation of the editor loop */
10738 command_loop_level
= -1;
10739 immediate_quit
= 0;
10740 quit_char
= Ctl ('g');
10741 Vunread_command_events
= Qnil
;
10742 unread_command_char
= -1;
10743 EMACS_SET_SECS_USECS (timer_idleness_start_time
, -1, -1);
10745 recent_keys_index
= 0;
10746 kbd_fetch_ptr
= kbd_buffer
;
10747 kbd_store_ptr
= kbd_buffer
;
10749 do_mouse_tracking
= Qnil
;
10753 /* This means that command_loop_1 won't try to select anything the first
10755 internal_last_event_frame
= Qnil
;
10756 Vlast_event_frame
= internal_last_event_frame
;
10758 #ifdef MULTI_KBOARD
10759 current_kboard
= initial_kboard
;
10761 wipe_kboard (current_kboard
);
10762 init_kboard (current_kboard
);
10764 if (!noninteractive
&& !read_socket_hook
&& NILP (Vwindow_system
))
10766 signal (SIGINT
, interrupt_signal
);
10767 #if defined (HAVE_TERMIO) || defined (HAVE_TERMIOS)
10768 /* For systems with SysV TERMIO, C-g is set up for both SIGINT and
10769 SIGQUIT and we can't tell which one it will give us. */
10770 signal (SIGQUIT
, interrupt_signal
);
10771 #endif /* HAVE_TERMIO */
10773 /* Note SIGIO has been undef'd if FIONREAD is missing. */
10775 if (!noninteractive
)
10776 signal (SIGIO
, input_available_signal
);
10779 /* Use interrupt input by default, if it works and noninterrupt input
10780 has deficiencies. */
10782 #ifdef INTERRUPT_INPUT
10783 interrupt_input
= 1;
10785 interrupt_input
= 0;
10788 /* Our VMS input only works by interrupts, as of now. */
10790 interrupt_input
= 1;
10796 if (keyboard_init_hook
)
10797 (*keyboard_init_hook
) ();
10799 #ifdef POLL_FOR_INPUT
10800 poll_suppress_count
= 1;
10805 /* This type's only use is in syms_of_keyboard, to initialize the
10806 event header symbols and put properties on them. */
10807 struct event_head
{
10813 struct event_head head_table
[] = {
10814 {&Qmouse_movement
, "mouse-movement", &Qmouse_movement
},
10815 {&Qscroll_bar_movement
, "scroll-bar-movement", &Qmouse_movement
},
10816 {&Qswitch_frame
, "switch-frame", &Qswitch_frame
},
10817 {&Qdelete_frame
, "delete-frame", &Qdelete_frame
},
10818 {&Qiconify_frame
, "iconify-frame", &Qiconify_frame
},
10819 {&Qmake_frame_visible
, "make-frame-visible", &Qmake_frame_visible
},
10820 /* `select-window' should be handled just like `switch-frame'
10821 in read_key_sequence. */
10822 {&Qselect_window
, "select-window", &Qswitch_frame
}
10826 syms_of_keyboard ()
10828 Vpre_help_message
= Qnil
;
10829 staticpro (&Vpre_help_message
);
10831 Vlispy_mouse_stem
= build_string ("mouse");
10832 staticpro (&Vlispy_mouse_stem
);
10835 QCimage
= intern (":image");
10836 staticpro (&QCimage
);
10838 staticpro (&Qhelp_echo
);
10839 Qhelp_echo
= intern ("help-echo");
10841 staticpro (&item_properties
);
10842 item_properties
= Qnil
;
10844 staticpro (&tool_bar_item_properties
);
10845 tool_bar_item_properties
= Qnil
;
10846 staticpro (&tool_bar_items_vector
);
10847 tool_bar_items_vector
= Qnil
;
10849 staticpro (&real_this_command
);
10850 real_this_command
= Qnil
;
10852 Qtimer_event_handler
= intern ("timer-event-handler");
10853 staticpro (&Qtimer_event_handler
);
10855 Qdisabled_command_function
= intern ("disabled-command-function");
10856 staticpro (&Qdisabled_command_function
);
10858 Qself_insert_command
= intern ("self-insert-command");
10859 staticpro (&Qself_insert_command
);
10861 Qforward_char
= intern ("forward-char");
10862 staticpro (&Qforward_char
);
10864 Qbackward_char
= intern ("backward-char");
10865 staticpro (&Qbackward_char
);
10867 Qdisabled
= intern ("disabled");
10868 staticpro (&Qdisabled
);
10870 Qundefined
= intern ("undefined");
10871 staticpro (&Qundefined
);
10873 Qpre_command_hook
= intern ("pre-command-hook");
10874 staticpro (&Qpre_command_hook
);
10876 Qpost_command_hook
= intern ("post-command-hook");
10877 staticpro (&Qpost_command_hook
);
10879 Qdeferred_action_function
= intern ("deferred-action-function");
10880 staticpro (&Qdeferred_action_function
);
10882 Qcommand_hook_internal
= intern ("command-hook-internal");
10883 staticpro (&Qcommand_hook_internal
);
10885 Qfunction_key
= intern ("function-key");
10886 staticpro (&Qfunction_key
);
10887 Qmouse_click
= intern ("mouse-click");
10888 staticpro (&Qmouse_click
);
10889 #if defined (WINDOWSNT) || defined (MAC_OS)
10890 Qlanguage_change
= intern ("language-change");
10891 staticpro (&Qlanguage_change
);
10893 Qdrag_n_drop
= intern ("drag-n-drop");
10894 staticpro (&Qdrag_n_drop
);
10896 Qsave_session
= intern ("save-session");
10897 staticpro (&Qsave_session
);
10900 Qmac_apple_event
= intern ("mac-apple-event");
10901 staticpro (&Qmac_apple_event
);
10904 Qusr1_signal
= intern ("usr1-signal");
10905 staticpro (&Qusr1_signal
);
10906 Qusr2_signal
= intern ("usr2-signal");
10907 staticpro (&Qusr2_signal
);
10909 Qmenu_enable
= intern ("menu-enable");
10910 staticpro (&Qmenu_enable
);
10911 Qmenu_alias
= intern ("menu-alias");
10912 staticpro (&Qmenu_alias
);
10913 QCenable
= intern (":enable");
10914 staticpro (&QCenable
);
10915 QCvisible
= intern (":visible");
10916 staticpro (&QCvisible
);
10917 QChelp
= intern (":help");
10918 staticpro (&QChelp
);
10919 QCfilter
= intern (":filter");
10920 staticpro (&QCfilter
);
10921 QCbutton
= intern (":button");
10922 staticpro (&QCbutton
);
10923 QCkeys
= intern (":keys");
10924 staticpro (&QCkeys
);
10925 QCkey_sequence
= intern (":key-sequence");
10926 staticpro (&QCkey_sequence
);
10927 QCtoggle
= intern (":toggle");
10928 staticpro (&QCtoggle
);
10929 QCradio
= intern (":radio");
10930 staticpro (&QCradio
);
10932 Qmode_line
= intern ("mode-line");
10933 staticpro (&Qmode_line
);
10934 Qvertical_line
= intern ("vertical-line");
10935 staticpro (&Qvertical_line
);
10936 Qvertical_scroll_bar
= intern ("vertical-scroll-bar");
10937 staticpro (&Qvertical_scroll_bar
);
10938 Qmenu_bar
= intern ("menu-bar");
10939 staticpro (&Qmenu_bar
);
10942 Qmouse_fixup_help_message
= intern ("mouse-fixup-help-message");
10943 staticpro (&Qmouse_fixup_help_message
);
10946 Qabove_handle
= intern ("above-handle");
10947 staticpro (&Qabove_handle
);
10948 Qhandle
= intern ("handle");
10949 staticpro (&Qhandle
);
10950 Qbelow_handle
= intern ("below-handle");
10951 staticpro (&Qbelow_handle
);
10952 Qup
= intern ("up");
10954 Qdown
= intern ("down");
10955 staticpro (&Qdown
);
10956 Qtop
= intern ("top");
10958 Qbottom
= intern ("bottom");
10959 staticpro (&Qbottom
);
10960 Qend_scroll
= intern ("end-scroll");
10961 staticpro (&Qend_scroll
);
10962 Qratio
= intern ("ratio");
10963 staticpro (&Qratio
);
10965 Qevent_kind
= intern ("event-kind");
10966 staticpro (&Qevent_kind
);
10967 Qevent_symbol_elements
= intern ("event-symbol-elements");
10968 staticpro (&Qevent_symbol_elements
);
10969 Qevent_symbol_element_mask
= intern ("event-symbol-element-mask");
10970 staticpro (&Qevent_symbol_element_mask
);
10971 Qmodifier_cache
= intern ("modifier-cache");
10972 staticpro (&Qmodifier_cache
);
10974 Qrecompute_lucid_menubar
= intern ("recompute-lucid-menubar");
10975 staticpro (&Qrecompute_lucid_menubar
);
10976 Qactivate_menubar_hook
= intern ("activate-menubar-hook");
10977 staticpro (&Qactivate_menubar_hook
);
10979 Qpolling_period
= intern ("polling-period");
10980 staticpro (&Qpolling_period
);
10982 Qinput_method_function
= intern ("input-method-function");
10983 staticpro (&Qinput_method_function
);
10985 Qinput_method_exit_on_first_char
= intern ("input-method-exit-on-first-char");
10986 staticpro (&Qinput_method_exit_on_first_char
);
10987 Qinput_method_use_echo_area
= intern ("input-method-use-echo-area");
10988 staticpro (&Qinput_method_use_echo_area
);
10990 Fset (Qinput_method_exit_on_first_char
, Qnil
);
10991 Fset (Qinput_method_use_echo_area
, Qnil
);
10993 last_point_position_buffer
= Qnil
;
10996 struct event_head
*p
;
10998 for (p
= head_table
;
10999 p
< head_table
+ (sizeof (head_table
) / sizeof (head_table
[0]));
11002 *p
->var
= intern (p
->name
);
11003 staticpro (p
->var
);
11004 Fput (*p
->var
, Qevent_kind
, *p
->kind
);
11005 Fput (*p
->var
, Qevent_symbol_elements
, Fcons (*p
->var
, Qnil
));
11009 button_down_location
= Fmake_vector (make_number (1), Qnil
);
11010 staticpro (&button_down_location
);
11011 mouse_syms
= Fmake_vector (make_number (1), Qnil
);
11012 staticpro (&mouse_syms
);
11013 wheel_syms
= Fmake_vector (make_number (2), Qnil
);
11014 staticpro (&wheel_syms
);
11018 int len
= sizeof (modifier_names
) / sizeof (modifier_names
[0]);
11020 modifier_symbols
= Fmake_vector (make_number (len
), Qnil
);
11021 for (i
= 0; i
< len
; i
++)
11022 if (modifier_names
[i
])
11023 XVECTOR (modifier_symbols
)->contents
[i
] = intern (modifier_names
[i
]);
11024 staticpro (&modifier_symbols
);
11027 recent_keys
= Fmake_vector (make_number (NUM_RECENT_KEYS
), Qnil
);
11028 staticpro (&recent_keys
);
11030 this_command_keys
= Fmake_vector (make_number (40), Qnil
);
11031 staticpro (&this_command_keys
);
11033 raw_keybuf
= Fmake_vector (make_number (30), Qnil
);
11034 staticpro (&raw_keybuf
);
11036 Qextended_command_history
= intern ("extended-command-history");
11037 Fset (Qextended_command_history
, Qnil
);
11038 staticpro (&Qextended_command_history
);
11040 accent_key_syms
= Qnil
;
11041 staticpro (&accent_key_syms
);
11043 func_key_syms
= Qnil
;
11044 staticpro (&func_key_syms
);
11046 drag_n_drop_syms
= Qnil
;
11047 staticpro (&drag_n_drop_syms
);
11049 unread_switch_frame
= Qnil
;
11050 staticpro (&unread_switch_frame
);
11052 internal_last_event_frame
= Qnil
;
11053 staticpro (&internal_last_event_frame
);
11055 read_key_sequence_cmd
= Qnil
;
11056 staticpro (&read_key_sequence_cmd
);
11058 menu_bar_one_keymap_changed_items
= Qnil
;
11059 staticpro (&menu_bar_one_keymap_changed_items
);
11061 menu_bar_items_vector
= Qnil
;
11062 staticpro (&menu_bar_items_vector
);
11064 defsubr (&Sevent_convert_list
);
11065 defsubr (&Sread_key_sequence
);
11066 defsubr (&Sread_key_sequence_vector
);
11067 defsubr (&Srecursive_edit
);
11069 defsubr (&Strack_mouse
);
11071 defsubr (&Sinput_pending_p
);
11072 defsubr (&Scommand_execute
);
11073 defsubr (&Srecent_keys
);
11074 defsubr (&Sthis_command_keys
);
11075 defsubr (&Sthis_command_keys_vector
);
11076 defsubr (&Sthis_single_command_keys
);
11077 defsubr (&Sthis_single_command_raw_keys
);
11078 defsubr (&Sreset_this_command_lengths
);
11079 defsubr (&Sclear_this_command_keys
);
11080 defsubr (&Ssuspend_emacs
);
11081 defsubr (&Sabort_recursive_edit
);
11082 defsubr (&Sexit_recursive_edit
);
11083 defsubr (&Srecursion_depth
);
11084 defsubr (&Stop_level
);
11085 defsubr (&Sdiscard_input
);
11086 defsubr (&Sopen_dribble_file
);
11087 defsubr (&Sset_input_mode
);
11088 defsubr (&Scurrent_input_mode
);
11089 defsubr (&Sexecute_extended_command
);
11090 defsubr (&Sposn_at_point
);
11091 defsubr (&Sposn_at_x_y
);
11093 DEFVAR_LISP ("last-command-char", &last_command_char
,
11094 doc
: /* Last input event that was part of a command. */);
11096 DEFVAR_LISP_NOPRO ("last-command-event", &last_command_char
,
11097 doc
: /* Last input event that was part of a command. */);
11099 DEFVAR_LISP ("last-nonmenu-event", &last_nonmenu_event
,
11100 doc
: /* Last input event in a command, except for mouse menu events.
11101 Mouse menus give back keys that don't look like mouse events;
11102 this variable holds the actual mouse event that led to the menu,
11103 so that you can determine whether the command was run by mouse or not. */);
11105 DEFVAR_LISP ("last-input-char", &last_input_char
,
11106 doc
: /* Last input event. */);
11108 DEFVAR_LISP_NOPRO ("last-input-event", &last_input_char
,
11109 doc
: /* Last input event. */);
11111 DEFVAR_LISP ("unread-command-events", &Vunread_command_events
,
11112 doc
: /* List of events to be read as the command input.
11113 These events are processed first, before actual keyboard input. */);
11114 Vunread_command_events
= Qnil
;
11116 DEFVAR_INT ("unread-command-char", &unread_command_char
,
11117 doc
: /* If not -1, an object to be read as next command input event. */);
11119 DEFVAR_LISP ("unread-post-input-method-events", &Vunread_post_input_method_events
,
11120 doc
: /* List of events to be processed as input by input methods.
11121 These events are processed after `unread-command-events', but
11122 before actual keyboard input. */);
11123 Vunread_post_input_method_events
= Qnil
;
11125 DEFVAR_LISP ("unread-input-method-events", &Vunread_input_method_events
,
11126 doc
: /* List of events to be processed as input by input methods.
11127 These events are processed after `unread-command-events', but
11128 before actual keyboard input. */);
11129 Vunread_input_method_events
= Qnil
;
11131 DEFVAR_LISP ("meta-prefix-char", &meta_prefix_char
,
11132 doc
: /* Meta-prefix character code.
11133 Meta-foo as command input turns into this character followed by foo. */);
11134 XSETINT (meta_prefix_char
, 033);
11136 DEFVAR_KBOARD ("last-command", Vlast_command
,
11137 doc
: /* The last command executed.
11138 Normally a symbol with a function definition, but can be whatever was found
11139 in the keymap, or whatever the variable `this-command' was set to by that
11142 The value `mode-exit' is special; it means that the previous command
11143 read an event that told it to exit, and it did so and unread that event.
11144 In other words, the present command is the event that made the previous
11147 The value `kill-region' is special; it means that the previous command
11148 was a kill command. */);
11150 DEFVAR_KBOARD ("real-last-command", Vreal_last_command
,
11151 doc
: /* Same as `last-command', but never altered by Lisp code. */);
11153 DEFVAR_LISP ("this-command", &Vthis_command
,
11154 doc
: /* The command now being executed.
11155 The command can set this variable; whatever is put here
11156 will be in `last-command' during the following command. */);
11157 Vthis_command
= Qnil
;
11159 DEFVAR_LISP ("this-original-command", &Vthis_original_command
,
11160 doc
: /* The command bound to the current key sequence before remapping.
11161 It equals `this-command' if the original command was not remapped through
11162 any of the active keymaps. Otherwise, the value of `this-command' is the
11163 result of looking up the original command in the active keymaps. */);
11164 Vthis_original_command
= Qnil
;
11166 DEFVAR_INT ("auto-save-interval", &auto_save_interval
,
11167 doc
: /* *Number of input events between auto-saves.
11168 Zero means disable autosaving due to number of characters typed. */);
11169 auto_save_interval
= 300;
11171 DEFVAR_LISP ("auto-save-timeout", &Vauto_save_timeout
,
11172 doc
: /* *Number of seconds idle time before auto-save.
11173 Zero or nil means disable auto-saving due to idleness.
11174 After auto-saving due to this many seconds of idle time,
11175 Emacs also does a garbage collection if that seems to be warranted. */);
11176 XSETFASTINT (Vauto_save_timeout
, 30);
11178 DEFVAR_LISP ("echo-keystrokes", &Vecho_keystrokes
,
11179 doc
: /* *Nonzero means echo unfinished commands after this many seconds of pause.
11180 The value may be integer or floating point. */);
11181 Vecho_keystrokes
= make_number (1);
11183 DEFVAR_INT ("polling-period", &polling_period
,
11184 doc
: /* *Interval between polling for input during Lisp execution.
11185 The reason for polling is to make C-g work to stop a running program.
11186 Polling is needed only when using X windows and SIGIO does not work.
11187 Polling is automatically disabled in all other cases. */);
11188 polling_period
= 2;
11190 DEFVAR_LISP ("double-click-time", &Vdouble_click_time
,
11191 doc
: /* *Maximum time between mouse clicks to make a double-click.
11192 Measured in milliseconds. nil means disable double-click recognition;
11193 t means double-clicks have no time limit and are detected
11194 by position only. */);
11195 Vdouble_click_time
= make_number (500);
11197 DEFVAR_INT ("double-click-fuzz", &double_click_fuzz
,
11198 doc
: /* *Maximum mouse movement between clicks to make a double-click.
11199 On window-system frames, value is the number of pixels the mouse may have
11200 moved horizontally or vertically between two clicks to make a double-click.
11201 On non window-system frames, value is interpreted in units of 1/8 characters
11204 This variable is also the threshold for motion of the mouse
11205 to count as a drag. */);
11206 double_click_fuzz
= 3;
11208 DEFVAR_BOOL ("inhibit-local-menu-bar-menus", &inhibit_local_menu_bar_menus
,
11209 doc
: /* *Non-nil means inhibit local map menu bar menus. */);
11210 inhibit_local_menu_bar_menus
= 0;
11212 DEFVAR_INT ("num-input-keys", &num_input_keys
,
11213 doc
: /* Number of complete key sequences read as input so far.
11214 This includes key sequences read from keyboard macros.
11215 The number is effectively the number of interactive command invocations. */);
11216 num_input_keys
= 0;
11218 DEFVAR_INT ("num-nonmacro-input-events", &num_nonmacro_input_events
,
11219 doc
: /* Number of input events read from the keyboard so far.
11220 This does not include events generated by keyboard macros. */);
11221 num_nonmacro_input_events
= 0;
11223 DEFVAR_LISP ("last-event-frame", &Vlast_event_frame
,
11224 doc
: /* The frame in which the most recently read event occurred.
11225 If the last event came from a keyboard macro, this is set to `macro'. */);
11226 Vlast_event_frame
= Qnil
;
11228 /* This variable is set up in sysdep.c. */
11229 DEFVAR_LISP ("tty-erase-char", &Vtty_erase_char
,
11230 doc
: /* The ERASE character as set by the user with stty. */);
11232 DEFVAR_LISP ("help-char", &Vhelp_char
,
11233 doc
: /* Character to recognize as meaning Help.
11234 When it is read, do `(eval help-form)', and display result if it's a string.
11235 If the value of `help-form' is nil, this char can be read normally. */);
11236 XSETINT (Vhelp_char
, Ctl ('H'));
11238 DEFVAR_LISP ("help-event-list", &Vhelp_event_list
,
11239 doc
: /* List of input events to recognize as meaning Help.
11240 These work just like the value of `help-char' (see that). */);
11241 Vhelp_event_list
= Qnil
;
11243 DEFVAR_LISP ("help-form", &Vhelp_form
,
11244 doc
: /* Form to execute when character `help-char' is read.
11245 If the form returns a string, that string is displayed.
11246 If `help-form' is nil, the help char is not recognized. */);
11249 DEFVAR_LISP ("prefix-help-command", &Vprefix_help_command
,
11250 doc
: /* Command to run when `help-char' character follows a prefix key.
11251 This command is used only when there is no actual binding
11252 for that character after that prefix key. */);
11253 Vprefix_help_command
= Qnil
;
11255 DEFVAR_LISP ("top-level", &Vtop_level
,
11256 doc
: /* Form to evaluate when Emacs starts up.
11257 Useful to set before you dump a modified Emacs. */);
11260 DEFVAR_LISP ("keyboard-translate-table", &Vkeyboard_translate_table
,
11261 doc
: /* Translate table for keyboard input, or nil.
11262 If non-nil, the value should be a char-table. Each character read
11263 from the keyboard is looked up in this char-table. If the value found
11264 there is non-nil, then it is used instead of the actual input character.
11266 The value can also be a string or vector, but this is considered obsolete.
11267 If it is a string or vector of length N, character codes N and up are left
11268 untranslated. In a vector, an element which is nil means "no translation".
11270 This is applied to the characters supplied to input methods, not their
11271 output. See also `translation-table-for-input'. */);
11272 Vkeyboard_translate_table
= Qnil
;
11274 DEFVAR_BOOL ("cannot-suspend", &cannot_suspend
,
11275 doc
: /* Non-nil means to always spawn a subshell instead of suspending.
11276 \(Even if the operating system has support for stopping a process.\) */);
11277 cannot_suspend
= 0;
11279 DEFVAR_BOOL ("menu-prompting", &menu_prompting
,
11280 doc
: /* Non-nil means prompt with menus when appropriate.
11281 This is done when reading from a keymap that has a prompt string,
11282 for elements that have prompt strings.
11283 The menu is displayed on the screen
11284 if X menus were enabled at configuration
11285 time and the previous event was a mouse click prefix key.
11286 Otherwise, menu prompting uses the echo area. */);
11287 menu_prompting
= 1;
11289 DEFVAR_LISP ("menu-prompt-more-char", &menu_prompt_more_char
,
11290 doc
: /* Character to see next line of menu prompt.
11291 Type this character while in a menu prompt to rotate around the lines of it. */);
11292 XSETINT (menu_prompt_more_char
, ' ');
11294 DEFVAR_INT ("extra-keyboard-modifiers", &extra_keyboard_modifiers
,
11295 doc
: /* A mask of additional modifier keys to use with every keyboard character.
11296 Emacs applies the modifiers of the character stored here to each keyboard
11297 character it reads. For example, after evaluating the expression
11298 (setq extra-keyboard-modifiers ?\\C-x)
11299 all input characters will have the control modifier applied to them.
11301 Note that the character ?\\C-@, equivalent to the integer zero, does
11302 not count as a control character; rather, it counts as a character
11303 with no modifiers; thus, setting `extra-keyboard-modifiers' to zero
11304 cancels any modification. */);
11305 extra_keyboard_modifiers
= 0;
11307 DEFVAR_LISP ("deactivate-mark", &Vdeactivate_mark
,
11308 doc
: /* If an editing command sets this to t, deactivate the mark afterward.
11309 The command loop sets this to nil before each command,
11310 and tests the value when the command returns.
11311 Buffer modification stores t in this variable. */);
11312 Vdeactivate_mark
= Qnil
;
11314 DEFVAR_LISP ("command-hook-internal", &Vcommand_hook_internal
,
11315 doc
: /* Temporary storage of pre-command-hook or post-command-hook. */);
11316 Vcommand_hook_internal
= Qnil
;
11318 DEFVAR_LISP ("pre-command-hook", &Vpre_command_hook
,
11319 doc
: /* Normal hook run before each command is executed.
11320 If an unhandled error happens in running this hook,
11321 the hook value is set to nil, since otherwise the error
11322 might happen repeatedly and make Emacs nonfunctional. */);
11323 Vpre_command_hook
= Qnil
;
11325 DEFVAR_LISP ("post-command-hook", &Vpost_command_hook
,
11326 doc
: /* Normal hook run after each command is executed.
11327 If an unhandled error happens in running this hook,
11328 the hook value is set to nil, since otherwise the error
11329 might happen repeatedly and make Emacs nonfunctional. */);
11330 Vpost_command_hook
= Qnil
;
11333 DEFVAR_LISP ("echo-area-clear-hook", ...,
11334 doc
: /* Normal hook run when clearing the echo area. */);
11336 Qecho_area_clear_hook
= intern ("echo-area-clear-hook");
11337 staticpro (&Qecho_area_clear_hook
);
11338 SET_SYMBOL_VALUE (Qecho_area_clear_hook
, Qnil
);
11340 DEFVAR_LISP ("lucid-menu-bar-dirty-flag", &Vlucid_menu_bar_dirty_flag
,
11341 doc
: /* Non-nil means menu bar, specified Lucid style, needs to be recomputed. */);
11342 Vlucid_menu_bar_dirty_flag
= Qnil
;
11344 DEFVAR_LISP ("menu-bar-final-items", &Vmenu_bar_final_items
,
11345 doc
: /* List of menu bar items to move to the end of the menu bar.
11346 The elements of the list are event types that may have menu bar bindings. */);
11347 Vmenu_bar_final_items
= Qnil
;
11349 DEFVAR_KBOARD ("overriding-terminal-local-map",
11350 Voverriding_terminal_local_map
,
11351 doc
: /* Per-terminal keymap that overrides all other local keymaps.
11352 If this variable is non-nil, it is used as a keymap instead of the
11353 buffer's local map, and the minor mode keymaps and text property keymaps.
11354 It also replaces `overriding-local-map'.
11356 This variable is intended to let commands such as `universal-argument'
11357 set up a different keymap for reading the next command. */);
11359 DEFVAR_LISP ("overriding-local-map", &Voverriding_local_map
,
11360 doc
: /* Keymap that overrides all other local keymaps.
11361 If this variable is non-nil, it is used as a keymap--replacing the
11362 buffer's local map, the minor mode keymaps, and char property keymaps. */);
11363 Voverriding_local_map
= Qnil
;
11365 DEFVAR_LISP ("overriding-local-map-menu-flag", &Voverriding_local_map_menu_flag
,
11366 doc
: /* Non-nil means `overriding-local-map' applies to the menu bar.
11367 Otherwise, the menu bar continues to reflect the buffer's local map
11368 and the minor mode maps regardless of `overriding-local-map'. */);
11369 Voverriding_local_map_menu_flag
= Qnil
;
11371 DEFVAR_LISP ("special-event-map", &Vspecial_event_map
,
11372 doc
: /* Keymap defining bindings for special events to execute at low level. */);
11373 Vspecial_event_map
= Fcons (intern ("keymap"), Qnil
);
11375 DEFVAR_LISP ("track-mouse", &do_mouse_tracking
,
11376 doc
: /* *Non-nil means generate motion events for mouse motion. */);
11378 DEFVAR_KBOARD ("system-key-alist", Vsystem_key_alist
,
11379 doc
: /* Alist of system-specific X windows key symbols.
11380 Each element should have the form (N . SYMBOL) where N is the
11381 numeric keysym code (sans the \"system-specific\" bit 1<<28)
11382 and SYMBOL is its name. */);
11384 DEFVAR_LISP ("deferred-action-list", &Vdeferred_action_list
,
11385 doc
: /* List of deferred actions to be performed at a later time.
11386 The precise format isn't relevant here; we just check whether it is nil. */);
11387 Vdeferred_action_list
= Qnil
;
11389 DEFVAR_LISP ("deferred-action-function", &Vdeferred_action_function
,
11390 doc
: /* Function to call to handle deferred actions, after each command.
11391 This function is called with no arguments after each command
11392 whenever `deferred-action-list' is non-nil. */);
11393 Vdeferred_action_function
= Qnil
;
11395 DEFVAR_LISP ("suggest-key-bindings", &Vsuggest_key_bindings
,
11396 doc
: /* *Non-nil means show the equivalent key-binding when M-x command has one.
11397 The value can be a length of time to show the message for.
11398 If the value is non-nil and not a number, we wait 2 seconds. */);
11399 Vsuggest_key_bindings
= Qt
;
11401 DEFVAR_LISP ("timer-list", &Vtimer_list
,
11402 doc
: /* List of active absolute time timers in order of increasing time. */);
11403 Vtimer_list
= Qnil
;
11405 DEFVAR_LISP ("timer-idle-list", &Vtimer_idle_list
,
11406 doc
: /* List of active idle-time timers in order of increasing time. */);
11407 Vtimer_idle_list
= Qnil
;
11409 DEFVAR_LISP ("input-method-function", &Vinput_method_function
,
11410 doc
: /* If non-nil, the function that implements the current input method.
11411 It's called with one argument, a printing character that was just read.
11412 \(That means a character with code 040...0176.)
11413 Typically this function uses `read-event' to read additional events.
11414 When it does so, it should first bind `input-method-function' to nil
11415 so it will not be called recursively.
11417 The function should return a list of zero or more events
11418 to be used as input. If it wants to put back some events
11419 to be reconsidered, separately, by the input method,
11420 it can add them to the beginning of `unread-command-events'.
11422 The input method function can find in `input-method-previous-method'
11423 the previous echo area message.
11425 The input method function should refer to the variables
11426 `input-method-use-echo-area' and `input-method-exit-on-first-char'
11427 for guidance on what to do. */);
11428 Vinput_method_function
= Qnil
;
11430 DEFVAR_LISP ("input-method-previous-message",
11431 &Vinput_method_previous_message
,
11432 doc
: /* When `input-method-function' is called, hold the previous echo area message.
11433 This variable exists because `read-event' clears the echo area
11434 before running the input method. It is nil if there was no message. */);
11435 Vinput_method_previous_message
= Qnil
;
11437 DEFVAR_LISP ("show-help-function", &Vshow_help_function
,
11438 doc
: /* If non-nil, the function that implements the display of help.
11439 It's called with one argument, the help string to display. */);
11440 Vshow_help_function
= Qnil
;
11442 DEFVAR_LISP ("disable-point-adjustment", &Vdisable_point_adjustment
,
11443 doc
: /* If non-nil, suppress point adjustment after executing a command.
11445 After a command is executed, if point is moved into a region that has
11446 special properties (e.g. composition, display), we adjust point to
11447 the boundary of the region. But, when a command sets this variable to
11448 non-nil, we suppress the point adjustment.
11450 This variable is set to nil before reading a command, and is checked
11451 just after executing the command. */);
11452 Vdisable_point_adjustment
= Qnil
;
11454 DEFVAR_LISP ("global-disable-point-adjustment",
11455 &Vglobal_disable_point_adjustment
,
11456 doc
: /* *If non-nil, always suppress point adjustment.
11458 The default value is nil, in which case, point adjustment are
11459 suppressed only after special commands that set
11460 `disable-point-adjustment' (which see) to non-nil. */);
11461 Vglobal_disable_point_adjustment
= Qnil
;
11463 DEFVAR_LISP ("minibuffer-message-timeout", &Vminibuffer_message_timeout
,
11464 doc
: /* *How long to display an echo-area message when the minibuffer is active.
11465 If the value is not a number, such messages don't time out. */);
11466 Vminibuffer_message_timeout
= make_number (2);
11468 DEFVAR_LISP ("throw-on-input", &Vthrow_on_input
,
11469 doc
: /* If non-nil, any keyboard input throws to this symbol.
11470 The value of that variable is passed to `quit-flag' and later causes a
11471 peculiar kind of quitting. */);
11472 Vthrow_on_input
= Qnil
;
11476 keys_of_keyboard ()
11478 initial_define_key (global_map
, Ctl ('Z'), "suspend-emacs");
11479 initial_define_key (control_x_map
, Ctl ('Z'), "suspend-emacs");
11480 initial_define_key (meta_map
, Ctl ('C'), "exit-recursive-edit");
11481 initial_define_key (global_map
, Ctl (']'), "abort-recursive-edit");
11482 initial_define_key (meta_map
, 'x', "execute-extended-command");
11484 initial_define_lispy_key (Vspecial_event_map
, "delete-frame",
11485 "handle-delete-frame");
11486 /* Here we used to use `ignore-event' which would simple set prefix-arg to
11487 current-prefix-arg, as is done in `handle-switch-frame'.
11488 But `handle-switch-frame is not run from the special-map.
11489 Commands from that map are run in a special way that automatically
11490 preserves the prefix-arg. Restoring the prefix arg here is not just
11491 redundant but harmful:
11493 - current-prefix-arg is set to non-nil, prefix-arg is set to nil.
11494 - after the first prompt, the exit-minibuffer-hook is run which may
11495 iconify a frame and thus push a `iconify-frame' event.
11496 - after running exit-minibuffer-hook, current-prefix-arg is
11497 restored to the non-nil value it had before the prompt.
11498 - we enter the second prompt.
11499 current-prefix-arg is non-nil, prefix-arg is nil.
11500 - before running the first real event, we run the special iconify-frame
11501 event, but we pass the `special' arg to execute-command so
11502 current-prefix-arg and prefix-arg are left untouched.
11503 - here we foolishly copy the non-nil current-prefix-arg to prefix-arg.
11504 - the next key event will have a spuriously non-nil current-prefix-arg. */
11505 initial_define_lispy_key (Vspecial_event_map
, "iconify-frame",
11507 initial_define_lispy_key (Vspecial_event_map
, "make-frame-visible",
11509 /* Handling it at such a low-level causes read_key_sequence to get
11510 * confused because it doesn't realize that the current_buffer was
11511 * changed by read_char.
11513 * initial_define_lispy_key (Vspecial_event_map, "select-window",
11514 * "handle-select-window"); */
11515 initial_define_lispy_key (Vspecial_event_map
, "save-session",
11516 "handle-save-session");
11519 /* Mark the pointers in the kboard objects.
11520 Called by the Fgarbage_collector. */
11526 for (kb
= all_kboards
; kb
; kb
= kb
->next_kboard
)
11528 if (kb
->kbd_macro_buffer
)
11529 for (p
= kb
->kbd_macro_buffer
; p
< kb
->kbd_macro_ptr
; p
++)
11531 mark_object (kb
->Voverriding_terminal_local_map
);
11532 mark_object (kb
->Vlast_command
);
11533 mark_object (kb
->Vreal_last_command
);
11534 mark_object (kb
->Vprefix_arg
);
11535 mark_object (kb
->Vlast_prefix_arg
);
11536 mark_object (kb
->kbd_queue
);
11537 mark_object (kb
->defining_kbd_macro
);
11538 mark_object (kb
->Vlast_kbd_macro
);
11539 mark_object (kb
->Vsystem_key_alist
);
11540 mark_object (kb
->system_key_syms
);
11541 mark_object (kb
->Vdefault_minibuffer_frame
);
11542 mark_object (kb
->echo_string
);
11545 struct input_event
*event
;
11546 for (event
= kbd_fetch_ptr
; event
!= kbd_store_ptr
; event
++)
11548 if (event
== kbd_buffer
+ KBD_BUFFER_SIZE
)
11549 event
= kbd_buffer
;
11550 if (event
->kind
!= SELECTION_REQUEST_EVENT
11551 && event
->kind
!= SELECTION_CLEAR_EVENT
)
11553 mark_object (event
->x
);
11554 mark_object (event
->y
);
11556 mark_object (event
->frame_or_window
);
11557 mark_object (event
->arg
);
11562 /* arch-tag: 774e34d7-6d31-42f3-8397-e079a4e4c9ca
11563 (do not change this comment) */