1 /* Keyboard and mouse input; editor command loop.
2 Copyright (C) 1985,86,87,88,89,93,94,95,96,97,99,2000,01,02,03,04
3 Free Software Foundation, Inc.
5 This file is part of GNU Emacs.
7 GNU Emacs is free software; you can redistribute it and/or modify
8 it under the terms of the GNU General Public License as published by
9 the Free Software Foundation; either version 2, or (at your option)
12 GNU Emacs is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 GNU General Public License for more details.
17 You should have received a copy of the GNU General Public License
18 along with GNU Emacs; see the file COPYING. If not, write to
19 the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
20 Boston, MA 02111-1307, USA. */
29 #include "termhooks.h"
37 #include "dispextern.h"
39 #include "intervals.h"
41 #include "blockinput.h"
53 #include <sys/ioctl.h>
55 #endif /* not MSDOS */
57 #include "syssignal.h"
59 #include <sys/types.h>
64 /* This is to get the definitions of the XK_ symbols. */
71 #endif /* HAVE_NTGUI */
81 /* Variables for blockinput.h: */
83 /* Non-zero if interrupt input is blocked right now. */
84 int interrupt_input_blocked
;
86 /* Nonzero means an input interrupt has arrived
87 during the current critical section. */
88 int interrupt_input_pending
;
91 #ifdef HAVE_WINDOW_SYSTEM
92 /* Make all keyboard buffers much bigger when using X windows. */
94 /* But not too big (local data > 32K error) if on Mac OS Classic. */
95 #define KBD_BUFFER_SIZE 512
97 #define KBD_BUFFER_SIZE 4096
99 #else /* No X-windows, character input */
100 #define KBD_BUFFER_SIZE 4096
101 #endif /* No X-windows */
103 #define abs(x) ((x) >= 0 ? (x) : -(x))
105 /* Following definition copied from eval.c */
109 struct backtrace
*next
;
110 Lisp_Object
*function
;
111 Lisp_Object
*args
; /* Points to vector of args. */
112 int nargs
; /* length of vector. If nargs is UNEVALLED,
113 args points to slot holding list of
119 KBOARD
*initial_kboard
;
120 KBOARD
*current_kboard
;
124 KBOARD the_only_kboard
;
127 /* Non-nil disable property on a command means
128 do not execute it; call disabled-command-hook's value instead. */
129 Lisp_Object Qdisabled
, Qdisabled_command_hook
;
131 #define NUM_RECENT_KEYS (100)
132 int recent_keys_index
; /* Index for storing next element into recent_keys */
133 int total_keys
; /* Total number of elements stored into recent_keys */
134 Lisp_Object recent_keys
; /* A vector, holding the last 100 keystrokes */
136 /* Vector holding the key sequence that invoked the current command.
137 It is reused for each command, and it may be longer than the current
138 sequence; this_command_key_count indicates how many elements
139 actually mean something.
140 It's easier to staticpro a single Lisp_Object than an array. */
141 Lisp_Object this_command_keys
;
142 int this_command_key_count
;
144 /* 1 after calling Freset_this_command_lengths.
146 int this_command_key_count_reset
;
148 /* This vector is used as a buffer to record the events that were actually read
149 by read_key_sequence. */
150 Lisp_Object raw_keybuf
;
151 int raw_keybuf_count
;
153 #define GROW_RAW_KEYBUF \
154 if (raw_keybuf_count == XVECTOR (raw_keybuf)->size) \
156 int newsize = 2 * XVECTOR (raw_keybuf)->size; \
158 new = Fmake_vector (make_number (newsize), Qnil); \
159 bcopy (XVECTOR (raw_keybuf)->contents, XVECTOR (new)->contents, \
160 raw_keybuf_count * sizeof (Lisp_Object)); \
164 /* Number of elements of this_command_keys
165 that precede this key sequence. */
166 int this_single_command_key_start
;
168 /* Record values of this_command_key_count and echo_length ()
169 before this command was read. */
170 static int before_command_key_count
;
171 static int before_command_echo_length
;
173 extern int minbuf_level
;
175 extern int message_enable_multibyte
;
177 extern struct backtrace
*backtrace_list
;
179 /* If non-nil, the function that implements the display of help.
180 It's called with one argument, the help string to display. */
182 Lisp_Object Vshow_help_function
;
184 /* If a string, the message displayed before displaying a help-echo
187 Lisp_Object Vpre_help_message
;
189 /* Nonzero means do menu prompting. */
191 static int menu_prompting
;
193 /* Character to see next line of menu prompt. */
195 static Lisp_Object menu_prompt_more_char
;
197 /* For longjmp to where kbd input is being done. */
199 static jmp_buf getcjmp
;
201 /* True while doing kbd input. */
202 int waiting_for_input
;
204 /* True while displaying for echoing. Delays C-g throwing. */
208 /* Non-null means we can start echoing at the next input pause even
209 though there is something in the echo area. */
211 static struct kboard
*ok_to_echo_at_next_pause
;
213 /* The kboard last echoing, or null for none. Reset to 0 in
214 cancel_echoing. If non-null, and a current echo area message
215 exists, and echo_message_buffer is eq to the current message
216 buffer, we know that the message comes from echo_kboard. */
218 struct kboard
*echo_kboard
;
220 /* The buffer used for echoing. Set in echo_now, reset in
223 Lisp_Object echo_message_buffer
;
225 /* Nonzero means disregard local maps for the menu bar. */
226 static int inhibit_local_menu_bar_menus
;
228 /* Nonzero means C-g should cause immediate error-signal. */
231 /* The user's ERASE setting. */
232 Lisp_Object Vtty_erase_char
;
234 /* Character to recognize as the help char. */
235 Lisp_Object Vhelp_char
;
237 /* List of other event types to recognize as meaning "help". */
238 Lisp_Object Vhelp_event_list
;
240 /* Form to execute when help char is typed. */
241 Lisp_Object Vhelp_form
;
243 /* Command to run when the help character follows a prefix key. */
244 Lisp_Object Vprefix_help_command
;
246 /* List of items that should move to the end of the menu bar. */
247 Lisp_Object Vmenu_bar_final_items
;
249 /* Non-nil means show the equivalent key-binding for
250 any M-x command that has one.
251 The value can be a length of time to show the message for.
252 If the value is non-nil and not a number, we wait 2 seconds. */
253 Lisp_Object Vsuggest_key_bindings
;
255 /* How long to display an echo-area message when the minibuffer is active.
256 If the value is not a number, such messages don't time out. */
257 Lisp_Object Vminibuffer_message_timeout
;
259 /* Character that causes a quit. Normally C-g.
261 If we are running on an ordinary terminal, this must be an ordinary
262 ASCII char, since we want to make it our interrupt character.
264 If we are not running on an ordinary terminal, it still needs to be
265 an ordinary ASCII char. This character needs to be recognized in
266 the input interrupt handler. At this point, the keystroke is
267 represented as a struct input_event, while the desired quit
268 character is specified as a lispy event. The mapping from struct
269 input_events to lispy events cannot run in an interrupt handler,
270 and the reverse mapping is difficult for anything but ASCII
273 FOR THESE ELABORATE AND UNSATISFYING REASONS, quit_char must be an
277 extern Lisp_Object current_global_map
;
278 extern int minibuf_level
;
280 /* If non-nil, this is a map that overrides all other local maps. */
281 Lisp_Object Voverriding_local_map
;
283 /* If non-nil, Voverriding_local_map applies to the menu bar. */
284 Lisp_Object Voverriding_local_map_menu_flag
;
286 /* Keymap that defines special misc events that should
287 be processed immediately at a low level. */
288 Lisp_Object Vspecial_event_map
;
290 /* Current depth in recursive edits. */
291 int command_loop_level
;
293 /* Total number of times command_loop has read a key sequence. */
294 EMACS_INT num_input_keys
;
296 /* Last input character read as a command. */
297 Lisp_Object last_command_char
;
299 /* Last input character read as a command, not counting menus
300 reached by the mouse. */
301 Lisp_Object last_nonmenu_event
;
303 /* Last input character read for any purpose. */
304 Lisp_Object last_input_char
;
306 /* If not Qnil, a list of objects to be read as subsequent command input. */
307 Lisp_Object Vunread_command_events
;
309 /* If not Qnil, a list of objects to be read as subsequent command input
310 including input method processing. */
311 Lisp_Object Vunread_input_method_events
;
313 /* If not Qnil, a list of objects to be read as subsequent command input
314 but NOT including input method processing. */
315 Lisp_Object Vunread_post_input_method_events
;
317 /* If not -1, an event to be read as subsequent command input. */
318 EMACS_INT unread_command_char
;
320 /* If not Qnil, this is a switch-frame event which we decided to put
321 off until the end of a key sequence. This should be read as the
322 next command input, after any unread_command_events.
324 read_key_sequence uses this to delay switch-frame events until the
325 end of the key sequence; Fread_char uses it to put off switch-frame
326 events until a non-ASCII event is acceptable as input. */
327 Lisp_Object unread_switch_frame
;
329 /* A mask of extra modifier bits to put into every keyboard char. */
330 EMACS_INT extra_keyboard_modifiers
;
332 /* Char to use as prefix when a meta character is typed in.
333 This is bound on entry to minibuffer in case ESC is changed there. */
335 Lisp_Object meta_prefix_char
;
337 /* Last size recorded for a current buffer which is not a minibuffer. */
338 static int last_non_minibuf_size
;
340 /* Number of idle seconds before an auto-save and garbage collection. */
341 static Lisp_Object Vauto_save_timeout
;
343 /* Total number of times read_char has returned. */
344 int num_input_events
;
346 /* Total number of times read_char has returned, outside of macros. */
347 EMACS_INT num_nonmacro_input_events
;
349 /* Auto-save automatically when this many characters have been typed
350 since the last time. */
352 static EMACS_INT auto_save_interval
;
354 /* Value of num_nonmacro_input_events as of last auto save. */
358 /* The command being executed by the command loop.
359 Commands may set this, and the value set will be copied into
360 current_kboard->Vlast_command instead of the actual command. */
361 Lisp_Object Vthis_command
;
363 /* This is like Vthis_command, except that commands never set it. */
364 Lisp_Object real_this_command
;
366 /* If the lookup of the command returns a binding, the original
367 command is stored in this-original-command. It is nil otherwise. */
368 Lisp_Object Vthis_original_command
;
370 /* The value of point when the last command was executed. */
371 int last_point_position
;
373 /* The buffer that was current when the last command was started. */
374 Lisp_Object last_point_position_buffer
;
376 /* The frame in which the last input event occurred, or Qmacro if the
377 last event came from a macro. We use this to determine when to
378 generate switch-frame events. This may be cleared by functions
379 like Fselect_frame, to make sure that a switch-frame event is
380 generated by the next character. */
381 Lisp_Object internal_last_event_frame
;
383 /* A user-visible version of the above, intended to allow users to
384 figure out where the last event came from, if the event doesn't
385 carry that information itself (i.e. if it was a character). */
386 Lisp_Object Vlast_event_frame
;
388 /* The timestamp of the last input event we received from the X server.
389 X Windows wants this for selection ownership. */
390 unsigned long last_event_timestamp
;
392 Lisp_Object Qself_insert_command
;
393 Lisp_Object Qforward_char
;
394 Lisp_Object Qbackward_char
;
395 Lisp_Object Qundefined
;
396 Lisp_Object Qtimer_event_handler
;
398 /* read_key_sequence stores here the command definition of the
399 key sequence that it reads. */
400 Lisp_Object read_key_sequence_cmd
;
402 /* Echo unfinished commands after this many seconds of pause. */
403 Lisp_Object Vecho_keystrokes
;
405 /* Form to evaluate (if non-nil) when Emacs is started. */
406 Lisp_Object Vtop_level
;
408 /* User-supplied table to translate input characters. */
409 Lisp_Object Vkeyboard_translate_table
;
411 /* Keymap mapping ASCII function key sequences onto their preferred forms. */
412 extern Lisp_Object Vfunction_key_map
;
414 /* Another keymap that maps key sequences into key sequences.
415 This one takes precedence over ordinary definitions. */
416 extern Lisp_Object Vkey_translation_map
;
418 /* If non-nil, this implements the current input method. */
419 Lisp_Object Vinput_method_function
;
420 Lisp_Object Qinput_method_function
;
422 /* When we call Vinput_method_function,
423 this holds the echo area message that was just erased. */
424 Lisp_Object Vinput_method_previous_message
;
426 /* Non-nil means deactivate the mark at end of this command. */
427 Lisp_Object Vdeactivate_mark
;
429 /* Menu bar specified in Lucid Emacs fashion. */
431 Lisp_Object Vlucid_menu_bar_dirty_flag
;
432 Lisp_Object Qrecompute_lucid_menubar
, Qactivate_menubar_hook
;
434 Lisp_Object Qecho_area_clear_hook
;
436 /* Hooks to run before and after each command. */
437 Lisp_Object Qpre_command_hook
, Vpre_command_hook
;
438 Lisp_Object Qpost_command_hook
, Vpost_command_hook
;
439 Lisp_Object Qcommand_hook_internal
, Vcommand_hook_internal
;
440 /* Hook run after a command if there's no more input soon. */
441 Lisp_Object Qpost_command_idle_hook
, Vpost_command_idle_hook
;
443 /* Delay time in microseconds before running post-command-idle-hook. */
444 EMACS_INT post_command_idle_delay
;
446 /* List of deferred actions to be performed at a later time.
447 The precise format isn't relevant here; we just check whether it is nil. */
448 Lisp_Object Vdeferred_action_list
;
450 /* Function to call to handle deferred actions, when there are any. */
451 Lisp_Object Vdeferred_action_function
;
452 Lisp_Object Qdeferred_action_function
;
454 Lisp_Object Qinput_method_exit_on_first_char
;
455 Lisp_Object Qinput_method_use_echo_area
;
457 /* File in which we write all commands we read. */
460 /* Nonzero if input is available. */
463 /* Non-zero means force key bindings update in parse_menu_item. */
465 int update_menu_bindings
;
467 extern char *pending_malloc_warning
;
469 /* Circular buffer for pre-read keyboard input. */
471 static struct input_event kbd_buffer
[KBD_BUFFER_SIZE
];
473 /* Pointer to next available character in kbd_buffer.
474 If kbd_fetch_ptr == kbd_store_ptr, the buffer is empty.
475 This may be kbd_buffer + KBD_BUFFER_SIZE, meaning that the
476 next available char is in kbd_buffer[0]. */
477 static struct input_event
*kbd_fetch_ptr
;
479 /* Pointer to next place to store character in kbd_buffer. This
480 may be kbd_buffer + KBD_BUFFER_SIZE, meaning that the next
481 character should go in kbd_buffer[0]. */
482 static struct input_event
* volatile kbd_store_ptr
;
484 /* The above pair of variables forms a "queue empty" flag. When we
485 enqueue a non-hook event, we increment kbd_store_ptr. When we
486 dequeue a non-hook event, we increment kbd_fetch_ptr. We say that
487 there is input available iff the two pointers are not equal.
489 Why not just have a flag set and cleared by the enqueuing and
490 dequeuing functions? Such a flag could be screwed up by interrupts
491 at inopportune times. */
493 /* If this flag is non-nil, we check mouse_moved to see when the
494 mouse moves, and motion events will appear in the input stream.
495 Otherwise, mouse motion is ignored. */
496 Lisp_Object do_mouse_tracking
;
498 /* Symbols to head events. */
499 Lisp_Object Qmouse_movement
;
500 Lisp_Object Qscroll_bar_movement
;
501 Lisp_Object Qswitch_frame
;
502 Lisp_Object Qdelete_frame
;
503 Lisp_Object Qiconify_frame
;
504 Lisp_Object Qmake_frame_visible
;
505 Lisp_Object Qselect_window
;
506 Lisp_Object Qhelp_echo
;
508 /* Symbols to denote kinds of events. */
509 Lisp_Object Qfunction_key
;
510 Lisp_Object Qmouse_click
;
512 Lisp_Object Qlanguage_change
;
514 Lisp_Object Qdrag_n_drop
;
515 Lisp_Object Qsave_session
;
517 /* Lisp_Object Qmouse_movement; - also an event header */
519 /* Properties of event headers. */
520 Lisp_Object Qevent_kind
;
521 Lisp_Object Qevent_symbol_elements
;
523 /* menu item parts */
524 Lisp_Object Qmenu_alias
;
525 Lisp_Object Qmenu_enable
;
526 Lisp_Object QCenable
, QCvisible
, QChelp
, QCfilter
, QCkeys
, QCkey_sequence
;
527 Lisp_Object QCbutton
, QCtoggle
, QCradio
;
528 extern Lisp_Object Vdefine_key_rebound_commands
;
529 extern Lisp_Object Qmenu_item
;
531 /* An event header symbol HEAD may have a property named
532 Qevent_symbol_element_mask, which is of the form (BASE MODIFIERS);
533 BASE is the base, unmodified version of HEAD, and MODIFIERS is the
534 mask of modifiers applied to it. If present, this is used to help
535 speed up parse_modifiers. */
536 Lisp_Object Qevent_symbol_element_mask
;
538 /* An unmodified event header BASE may have a property named
539 Qmodifier_cache, which is an alist mapping modifier masks onto
540 modified versions of BASE. If present, this helps speed up
542 Lisp_Object Qmodifier_cache
;
544 /* Symbols to use for parts of windows. */
545 Lisp_Object Qmode_line
;
546 Lisp_Object Qvertical_line
;
547 Lisp_Object Qvertical_scroll_bar
;
548 Lisp_Object Qmenu_bar
;
549 extern Lisp_Object Qleft_margin
, Qright_margin
;
550 extern Lisp_Object Qleft_fringe
, Qright_fringe
;
551 extern Lisp_Object QCmap
;
553 Lisp_Object
recursive_edit_unwind (), command_loop ();
554 Lisp_Object
Fthis_command_keys ();
555 Lisp_Object Qextended_command_history
;
556 EMACS_TIME
timer_check ();
558 extern Lisp_Object Vhistory_length
, Vtranslation_table_for_input
;
560 extern char *x_get_keysym_name ();
562 static void record_menu_key ();
563 static int echo_length ();
565 Lisp_Object Qpolling_period
;
567 /* List of absolute timers. Appears in order of next scheduled event. */
568 Lisp_Object Vtimer_list
;
570 /* List of idle time timers. Appears in order of next scheduled event. */
571 Lisp_Object Vtimer_idle_list
;
573 /* Incremented whenever a timer is run. */
576 extern Lisp_Object Vprint_level
, Vprint_length
;
578 /* Address (if not 0) of EMACS_TIME to zero out if a SIGIO interrupt
580 EMACS_TIME
*input_available_clear_time
;
582 /* Nonzero means use SIGIO interrupts; zero means use CBREAK mode.
583 Default is 1 if INTERRUPT_INPUT is defined. */
586 /* Nonzero while interrupts are temporarily deferred during redisplay. */
587 int interrupts_deferred
;
589 /* Allow m- file to inhibit use of FIONREAD. */
590 #ifdef BROKEN_FIONREAD
594 /* We are unable to use interrupts if FIONREAD is not available,
595 so flush SIGIO so we won't try. */
602 /* If we support a window system, turn on the code to poll periodically
603 to detect C-g. It isn't actually used when doing interrupt input. */
604 #if defined(HAVE_WINDOW_SYSTEM) && !defined(USE_ASYNC_EVENTS)
605 #define POLL_FOR_INPUT
608 /* After a command is executed, if point is moved into a region that
609 has specific properties (e.g. composition, display), we adjust
610 point to the boundary of the region. But, if a command sets this
611 variable to non-nil, we suppress this point adjustment. This
612 variable is set to nil before reading a command. */
614 Lisp_Object Vdisable_point_adjustment
;
616 /* If non-nil, always disable point adjustment. */
618 Lisp_Object Vglobal_disable_point_adjustment
;
620 /* The time when Emacs started being idle. */
622 static EMACS_TIME timer_idleness_start_time
;
624 /* After Emacs stops being idle, this saves the last value
625 of timer_idleness_start_time from when it was idle. */
627 static EMACS_TIME timer_last_idleness_start_time
;
630 /* Global variable declarations. */
632 /* Function for init_keyboard to call with no args (if nonzero). */
633 void (*keyboard_init_hook
) ();
635 static int read_avail_input
P_ ((int));
636 static void get_input_pending
P_ ((int *, int));
637 static void get_filtered_input_pending
P_ ((int *, int, int));
638 static int readable_events
P_ ((int));
639 static int readable_filtered_events
P_ ((int, int));
640 static Lisp_Object read_char_x_menu_prompt
P_ ((int, Lisp_Object
*,
641 Lisp_Object
, int *));
642 static Lisp_Object
read_char_x_menu_prompt ();
643 static Lisp_Object read_char_minibuf_menu_prompt
P_ ((int, int,
645 static Lisp_Object make_lispy_event
P_ ((struct input_event
*));
647 static Lisp_Object make_lispy_movement
P_ ((struct frame
*, Lisp_Object
,
648 enum scroll_bar_part
,
649 Lisp_Object
, Lisp_Object
,
652 static Lisp_Object modify_event_symbol
P_ ((int, unsigned, Lisp_Object
,
653 Lisp_Object
, char **,
654 Lisp_Object
*, unsigned));
655 static Lisp_Object make_lispy_switch_frame
P_ ((Lisp_Object
));
656 static int parse_solitary_modifier
P_ ((Lisp_Object
));
657 static int parse_solitary_modifier ();
658 static void save_getcjmp
P_ ((jmp_buf));
659 static void save_getcjmp ();
660 static void restore_getcjmp
P_ ((jmp_buf));
661 static Lisp_Object apply_modifiers
P_ ((int, Lisp_Object
));
662 static void clear_event
P_ ((struct input_event
*));
663 static void any_kboard_state
P_ ((void));
664 static SIGTYPE interrupt_signal
P_ ((int signalnum
));
665 static void handle_interrupt
P_ ((void));
667 /* Nonzero means don't try to suspend even if the operating system seems
669 static int cannot_suspend
;
671 /* Install the string STR as the beginning of the string of echoing,
672 so that it serves as a prompt for the next character.
673 Also start echoing. */
679 current_kboard
->echo_string
= str
;
680 current_kboard
->echo_after_prompt
= SCHARS (str
);
684 /* Add C to the echo string, if echoing is going on.
685 C can be a character, which is printed prettily ("M-C-x" and all that
686 jazz), or a symbol, whose name is printed. */
692 if (current_kboard
->immediate_echo
)
694 int size
= KEY_DESCRIPTION_SIZE
+ 100;
695 char *buffer
= (char *) alloca (size
);
697 Lisp_Object echo_string
;
699 echo_string
= current_kboard
->echo_string
;
701 /* If someone has passed us a composite event, use its head symbol. */
706 ptr
= push_key_description (XINT (c
), ptr
, 1);
708 else if (SYMBOLP (c
))
710 Lisp_Object name
= SYMBOL_NAME (c
);
711 int nbytes
= SBYTES (name
);
713 if (size
- (ptr
- buffer
) < nbytes
)
715 int offset
= ptr
- buffer
;
716 size
= max (2 * size
, size
+ nbytes
);
717 buffer
= (char *) alloca (size
);
718 ptr
= buffer
+ offset
;
721 ptr
+= copy_text (SDATA (name
), ptr
, nbytes
,
722 STRING_MULTIBYTE (name
), 1);
725 if ((NILP (echo_string
) || SCHARS (echo_string
) == 0)
728 const char *text
= " (Type ? for further options)";
729 int len
= strlen (text
);
731 if (size
- (ptr
- buffer
) < len
)
733 int offset
= ptr
- buffer
;
735 buffer
= (char *) alloca (size
);
736 ptr
= buffer
+ offset
;
739 bcopy (text
, ptr
, len
);
743 /* Replace a dash from echo_dash with a space, otherwise
744 add a space at the end as a separator between keys. */
745 if (STRINGP (echo_string
)
746 && SCHARS (echo_string
) > 1)
748 Lisp_Object last_char
, prev_char
, idx
;
750 idx
= make_number (SCHARS (echo_string
) - 2);
751 prev_char
= Faref (echo_string
, idx
);
753 idx
= make_number (SCHARS (echo_string
) - 1);
754 last_char
= Faref (echo_string
, idx
);
756 /* We test PREV_CHAR to make sure this isn't the echoing
758 if (XINT (last_char
) == '-' && XINT (prev_char
) != ' ')
759 Faset (echo_string
, idx
, make_number (' '));
761 echo_string
= concat2 (echo_string
, build_string (" "));
764 current_kboard
->echo_string
765 = concat2 (echo_string
, make_string (buffer
, ptr
- buffer
));
771 /* Temporarily add a dash to the end of the echo string if it's not
772 empty, so that it serves as a mini-prompt for the very next character. */
777 /* Do nothing if not echoing at all. */
778 if (NILP (current_kboard
->echo_string
))
781 if (!current_kboard
->immediate_echo
782 && SCHARS (current_kboard
->echo_string
) == 0)
785 /* Do nothing if we just printed a prompt. */
786 if (current_kboard
->echo_after_prompt
787 == SCHARS (current_kboard
->echo_string
))
790 /* Put a dash at the end of the buffer temporarily,
791 but make it go away when the next character is added. */
792 current_kboard
->echo_string
= concat2 (current_kboard
->echo_string
,
797 /* Display the current echo string, and begin echoing if not already
803 if (!current_kboard
->immediate_echo
)
806 current_kboard
->immediate_echo
= 1;
808 for (i
= 0; i
< this_command_key_count
; i
++)
812 /* Set before_command_echo_length to the value that would
813 have been saved before the start of this subcommand in
814 command_loop_1, if we had already been echoing then. */
815 if (i
== this_single_command_key_start
)
816 before_command_echo_length
= echo_length ();
818 c
= XVECTOR (this_command_keys
)->contents
[i
];
819 if (! (EVENT_HAS_PARAMETERS (c
)
820 && EQ (EVENT_HEAD_KIND (EVENT_HEAD (c
)), Qmouse_movement
)))
824 /* Set before_command_echo_length to the value that would
825 have been saved before the start of this subcommand in
826 command_loop_1, if we had already been echoing then. */
827 if (this_command_key_count
== this_single_command_key_start
)
828 before_command_echo_length
= echo_length ();
830 /* Put a dash at the end to invite the user to type more. */
835 message3_nolog (current_kboard
->echo_string
,
836 SBYTES (current_kboard
->echo_string
),
837 STRING_MULTIBYTE (current_kboard
->echo_string
));
840 /* Record in what buffer we echoed, and from which kboard. */
841 echo_message_buffer
= echo_area_buffer
[0];
842 echo_kboard
= current_kboard
;
844 if (waiting_for_input
&& !NILP (Vquit_flag
))
845 quit_throw_to_read_char ();
848 /* Turn off echoing, for the start of a new command. */
853 current_kboard
->immediate_echo
= 0;
854 current_kboard
->echo_after_prompt
= -1;
855 current_kboard
->echo_string
= Qnil
;
856 ok_to_echo_at_next_pause
= NULL
;
858 echo_message_buffer
= Qnil
;
861 /* Return the length of the current echo string. */
866 return (STRINGP (current_kboard
->echo_string
)
867 ? SCHARS (current_kboard
->echo_string
)
871 /* Truncate the current echo message to its first LEN chars.
872 This and echo_char get used by read_key_sequence when the user
873 switches frames while entering a key sequence. */
876 echo_truncate (nchars
)
879 if (STRINGP (current_kboard
->echo_string
))
880 current_kboard
->echo_string
881 = Fsubstring (current_kboard
->echo_string
,
882 make_number (0), make_number (nchars
));
883 truncate_echo_area (nchars
);
887 /* Functions for manipulating this_command_keys. */
889 add_command_key (key
)
892 #if 0 /* Not needed after we made Freset_this_command_lengths
893 do the job immediately. */
894 /* If reset-this-command-length was called recently, obey it now.
895 See the doc string of that function for an explanation of why. */
896 if (before_command_restore_flag
)
898 this_command_key_count
= before_command_key_count_1
;
899 if (this_command_key_count
< this_single_command_key_start
)
900 this_single_command_key_start
= this_command_key_count
;
901 echo_truncate (before_command_echo_length_1
);
902 before_command_restore_flag
= 0;
906 if (this_command_key_count
>= ASIZE (this_command_keys
))
907 this_command_keys
= larger_vector (this_command_keys
,
908 2 * ASIZE (this_command_keys
),
911 AREF (this_command_keys
, this_command_key_count
) = key
;
912 ++this_command_key_count
;
919 int count
= SPECPDL_INDEX ();
922 if (command_loop_level
> 0)
924 specbind (Qstandard_output
, Qt
);
925 specbind (Qstandard_input
, Qt
);
928 #ifdef HAVE_X_WINDOWS
929 /* The command loop has started an hourglass timer, so we have to
930 cancel it here, otherwise it will fire because the recursive edit
931 can take some time. Do not check for display_hourglass_p here,
932 because it could already be nil. */
936 /* This function may have been called from a debugger called from
937 within redisplay, for instance by Edebugging a function called
938 from fontification-functions. We want to allow redisplay in
939 the debugging session.
941 The recursive edit is left with a `(throw exit ...)'. The `exit'
942 tag is not caught anywhere in redisplay, i.e. when we leave the
943 recursive edit, the original redisplay leading to the recursive
944 edit will be unwound. The outcome should therefore be safe. */
945 specbind (Qinhibit_redisplay
, Qnil
);
948 val
= command_loop ();
950 Fsignal (Qquit
, Qnil
);
951 /* Handle throw from read_minibuf when using minibuffer
952 while it's active but we're in another window. */
954 Fsignal (Qerror
, Fcons (val
, Qnil
));
956 return unbind_to (count
, Qnil
);
959 /* When an auto-save happens, record the "time", and don't do again soon. */
964 last_auto_save
= num_nonmacro_input_events
;
967 /* Make an auto save happen as soon as possible at command level. */
970 force_auto_save_soon ()
972 last_auto_save
= - auto_save_interval
- 1;
974 record_asynch_buffer_change ();
977 DEFUN ("recursive-edit", Frecursive_edit
, Srecursive_edit
, 0, 0, "",
978 doc
: /* Invoke the editor command loop recursively.
979 To get out of the recursive edit, a command can do `(throw 'exit nil)';
980 that tells this function to return.
981 Alternately, `(throw 'exit t)' makes this function signal an error.
982 This function is called by the editor initialization to begin editing. */)
985 int count
= SPECPDL_INDEX ();
988 command_loop_level
++;
989 update_mode_lines
= 1;
991 if (command_loop_level
992 && current_buffer
!= XBUFFER (XWINDOW (selected_window
)->buffer
))
993 buffer
= Fcurrent_buffer ();
997 /* If we leave recursive_edit_1 below with a `throw' for instance,
998 like it is done in the splash screen display, we have to
999 make sure that we restore single_kboard as command_loop_1
1000 would have done if it were left normally. */
1001 record_unwind_protect (recursive_edit_unwind
,
1002 Fcons (buffer
, single_kboard
? Qt
: Qnil
));
1004 recursive_edit_1 ();
1005 return unbind_to (count
, Qnil
);
1009 recursive_edit_unwind (info
)
1012 if (BUFFERP (XCAR (info
)))
1013 Fset_buffer (XCAR (info
));
1015 if (NILP (XCDR (info
)))
1016 any_kboard_state ();
1018 single_kboard_state ();
1020 command_loop_level
--;
1021 update_mode_lines
= 1;
1030 #if 0 /* Theory: if there's anything in Vunread_command_events,
1031 it will right away be read by read_key_sequence,
1032 and then if we do switch KBOARDS, it will go into the side
1033 queue then. So we don't need to do anything special here -- rms. */
1034 if (CONSP (Vunread_command_events
))
1036 current_kboard
->kbd_queue
1037 = nconc2 (Vunread_command_events
, current_kboard
->kbd_queue
);
1038 current_kboard
->kbd_queue_has_data
= 1;
1040 Vunread_command_events
= Qnil
;
1046 /* Switch to the single-kboard state, making current_kboard
1047 the only KBOARD from which further input is accepted. */
1050 single_kboard_state ()
1057 /* Maintain a stack of kboards, so other parts of Emacs
1058 can switch temporarily to the kboard of a given frame
1059 and then revert to the previous status. */
1064 struct kboard_stack
*next
;
1067 static struct kboard_stack
*kboard_stack
;
1070 push_frame_kboard (f
)
1074 struct kboard_stack
*p
1075 = (struct kboard_stack
*) xmalloc (sizeof (struct kboard_stack
));
1077 p
->next
= kboard_stack
;
1078 p
->kboard
= current_kboard
;
1081 current_kboard
= FRAME_KBOARD (f
);
1089 struct kboard_stack
*p
= kboard_stack
;
1090 current_kboard
= p
->kboard
;
1091 kboard_stack
= p
->next
;
1096 /* Handle errors that are not handled at inner levels
1097 by printing an error message and returning to the editor command loop. */
1103 Lisp_Object old_level
, old_length
;
1104 char macroerror
[50];
1106 #ifdef HAVE_X_WINDOWS
1107 if (display_hourglass_p
)
1108 cancel_hourglass ();
1111 if (!NILP (executing_macro
))
1113 if (executing_macro_iterations
== 1)
1114 sprintf (macroerror
, "After 1 kbd macro iteration: ");
1116 sprintf (macroerror
, "After %d kbd macro iterations: ",
1117 executing_macro_iterations
);
1122 Vstandard_output
= Qt
;
1123 Vstandard_input
= Qt
;
1124 Vexecuting_macro
= Qnil
;
1125 executing_macro
= Qnil
;
1126 current_kboard
->Vprefix_arg
= Qnil
;
1127 current_kboard
->Vlast_prefix_arg
= Qnil
;
1130 /* Avoid unquittable loop if data contains a circular list. */
1131 old_level
= Vprint_level
;
1132 old_length
= Vprint_length
;
1133 XSETFASTINT (Vprint_level
, 10);
1134 XSETFASTINT (Vprint_length
, 10);
1135 cmd_error_internal (data
, macroerror
);
1136 Vprint_level
= old_level
;
1137 Vprint_length
= old_length
;
1141 Vinhibit_quit
= Qnil
;
1143 any_kboard_state ();
1146 return make_number (0);
1149 /* Take actions on handling an error. DATA is the data that describes
1152 CONTEXT is a C-string containing ASCII characters only which
1153 describes the context in which the error happened. If we need to
1154 generalize CONTEXT to allow multibyte characters, make it a Lisp
1158 cmd_error_internal (data
, context
)
1163 int kill_emacs_p
= 0;
1164 struct frame
*sf
= SELECTED_FRAME ();
1168 clear_message (1, 0);
1170 /* If the window system or terminal frame hasn't been initialized
1171 yet, or we're not interactive, it's best to dump this message out
1172 to stderr and exit. */
1173 if (!sf
->glyphs_initialized_p
1174 /* This is the case of the frame dumped with Emacs, when we're
1175 running under a window system. */
1176 || FRAME_INITIAL_P (sf
)
1179 stream
= Qexternal_debugging_output
;
1185 message_log_maybe_newline ();
1190 /* The immediate context is not interesting for Quits,
1191 since they are asyncronous. */
1192 if (EQ (XCAR (data
), Qquit
))
1193 Vsignaling_function
= Qnil
;
1195 print_error_message (data
, stream
, context
, Vsignaling_function
);
1197 Vsignaling_function
= Qnil
;
1199 /* If the window system or terminal frame hasn't been initialized
1200 yet, or we're in -batch mode, this error should cause Emacs to exit. */
1204 Fkill_emacs (make_number (-1));
1208 Lisp_Object
command_loop_1 ();
1209 Lisp_Object
command_loop_2 ();
1210 Lisp_Object
top_level_1 ();
1212 /* Entry to editor-command-loop.
1213 This level has the catches for exiting/returning to editor command loop.
1214 It returns nil to exit recursive edit, t to abort it. */
1219 if (command_loop_level
> 0 || minibuf_level
> 0)
1222 val
= internal_catch (Qexit
, command_loop_2
, Qnil
);
1223 executing_macro
= Qnil
;
1229 internal_catch (Qtop_level
, top_level_1
, Qnil
);
1230 internal_catch (Qtop_level
, command_loop_2
, Qnil
);
1231 executing_macro
= Qnil
;
1233 /* End of file in -batch run causes exit here. */
1239 /* Here we catch errors in execution of commands within the
1240 editing loop, and reenter the editing loop.
1241 When there is an error, cmd_error runs and returns a non-nil
1242 value to us. A value of nil means that command_loop_1 itself
1243 returned due to end of file (or end of kbd macro). */
1248 register Lisp_Object val
;
1251 val
= internal_condition_case (command_loop_1
, Qerror
, cmd_error
);
1252 while (!NILP (val
));
1260 return Feval (Vtop_level
);
1266 /* On entry to the outer level, run the startup file */
1267 if (!NILP (Vtop_level
))
1268 internal_condition_case (top_level_2
, Qerror
, cmd_error
);
1269 else if (!NILP (Vpurify_flag
))
1270 message ("Bare impure Emacs (standard Lisp code not loaded)");
1272 message ("Bare Emacs (standard Lisp code not loaded)");
1276 DEFUN ("top-level", Ftop_level
, Stop_level
, 0, 0, "",
1277 doc
: /* Exit all recursive editing levels. */)
1280 #ifdef HAVE_X_WINDOWS
1281 if (display_hourglass_p
)
1282 cancel_hourglass ();
1284 return Fthrow (Qtop_level
, Qnil
);
1287 DEFUN ("exit-recursive-edit", Fexit_recursive_edit
, Sexit_recursive_edit
, 0, 0, "",
1288 doc
: /* Exit from the innermost recursive edit or minibuffer. */)
1291 if (command_loop_level
> 0 || minibuf_level
> 0)
1292 Fthrow (Qexit
, Qnil
);
1294 error ("No recursive edit is in progress");
1298 DEFUN ("abort-recursive-edit", Fabort_recursive_edit
, Sabort_recursive_edit
, 0, 0, "",
1299 doc
: /* Abort the command that requested this recursive edit or minibuffer input. */)
1302 if (command_loop_level
> 0 || minibuf_level
> 0)
1305 error ("No recursive edit is in progress");
1309 /* This is the actual command reading loop,
1310 sans error-handling encapsulation. */
1312 static int read_key_sequence
P_ ((Lisp_Object
*, int, Lisp_Object
,
1314 void safe_run_hooks
P_ ((Lisp_Object
));
1315 static void adjust_point_for_property
P_ ((int, int));
1317 /* Cancel hourglass from protect_unwind.
1319 #ifdef HAVE_X_WINDOWS
1321 cancel_hourglass_unwind (arg
)
1324 cancel_hourglass ();
1335 Lisp_Object keybuf
[30];
1338 int prev_modiff
= 0;
1339 struct buffer
*prev_buffer
= NULL
;
1341 int was_locked
= single_kboard
;
1343 int already_adjusted
= 0;
1345 current_kboard
->Vprefix_arg
= Qnil
;
1346 current_kboard
->Vlast_prefix_arg
= Qnil
;
1347 Vdeactivate_mark
= Qnil
;
1348 waiting_for_input
= 0;
1352 this_command_key_count
= 0;
1353 this_command_key_count_reset
= 0;
1354 this_single_command_key_start
= 0;
1356 if (NILP (Vmemory_full
))
1358 /* Make sure this hook runs after commands that get errors and
1359 throw to top level. */
1360 /* Note that the value cell will never directly contain nil
1361 if the symbol is a local variable. */
1362 if (!NILP (Vpost_command_hook
) && !NILP (Vrun_hooks
))
1363 safe_run_hooks (Qpost_command_hook
);
1365 /* If displaying a message, resize the echo area window to fit
1366 that message's size exactly. */
1367 if (!NILP (echo_area_buffer
[0]))
1368 resize_echo_area_exactly ();
1370 if (!NILP (Vdeferred_action_list
))
1371 call0 (Vdeferred_action_function
);
1373 if (!NILP (Vpost_command_idle_hook
) && !NILP (Vrun_hooks
))
1375 if (NILP (Vunread_command_events
)
1376 && NILP (Vunread_input_method_events
)
1377 && NILP (Vunread_post_input_method_events
)
1378 && NILP (Vexecuting_macro
)
1379 && !NILP (sit_for (0, post_command_idle_delay
, 0, 1, 1)))
1380 safe_run_hooks (Qpost_command_idle_hook
);
1384 Vmemory_full
= Qnil
;
1386 /* Do this after running Vpost_command_hook, for consistency. */
1387 current_kboard
->Vlast_command
= Vthis_command
;
1388 current_kboard
->Vreal_last_command
= real_this_command
;
1392 if (! FRAME_LIVE_P (XFRAME (selected_frame
)))
1395 /* Make sure the current window's buffer is selected. */
1396 if (XBUFFER (XWINDOW (selected_window
)->buffer
) != current_buffer
)
1397 set_buffer_internal (XBUFFER (XWINDOW (selected_window
)->buffer
));
1399 /* Display any malloc warning that just came out. Use while because
1400 displaying one warning can cause another. */
1402 while (pending_malloc_warning
)
1403 display_malloc_warning ();
1407 Vdeactivate_mark
= Qnil
;
1409 /* If minibuffer on and echo area in use,
1410 wait a short time and redraw minibuffer. */
1413 && !NILP (echo_area_buffer
[0])
1414 && EQ (minibuf_window
, echo_area_window
)
1415 && NUMBERP (Vminibuffer_message_timeout
))
1417 /* Bind inhibit-quit to t so that C-g gets read in
1418 rather than quitting back to the minibuffer. */
1419 int count
= SPECPDL_INDEX ();
1420 specbind (Qinhibit_quit
, Qt
);
1422 Fsit_for (Vminibuffer_message_timeout
, Qnil
, Qnil
);
1423 /* Clear the echo area. */
1425 safe_run_hooks (Qecho_area_clear_hook
);
1427 unbind_to (count
, Qnil
);
1429 /* If a C-g came in before, treat it as input now. */
1430 if (!NILP (Vquit_flag
))
1433 Vunread_command_events
= Fcons (make_number (quit_char
), Qnil
);
1438 alloca (0); /* Cause a garbage collection now */
1439 /* Since we can free the most stuff here. */
1440 #endif /* C_ALLOCA */
1443 /* Select the frame that the last event came from. Usually,
1444 switch-frame events will take care of this, but if some lisp
1445 code swallows a switch-frame event, we'll fix things up here.
1446 Is this a good idea? */
1447 if (FRAMEP (internal_last_event_frame
)
1448 && !EQ (internal_last_event_frame
, selected_frame
))
1449 Fselect_frame (internal_last_event_frame
, Qnil
);
1451 /* If it has changed current-menubar from previous value,
1452 really recompute the menubar from the value. */
1453 if (! NILP (Vlucid_menu_bar_dirty_flag
)
1454 && !NILP (Ffboundp (Qrecompute_lucid_menubar
)))
1455 call0 (Qrecompute_lucid_menubar
);
1457 before_command_key_count
= this_command_key_count
;
1458 before_command_echo_length
= echo_length ();
1460 Vthis_command
= Qnil
;
1461 real_this_command
= Qnil
;
1463 /* Read next key sequence; i gets its length. */
1464 i
= read_key_sequence (keybuf
, sizeof keybuf
/ sizeof keybuf
[0],
1467 /* A filter may have run while we were reading the input. */
1468 if (! FRAME_LIVE_P (XFRAME (selected_frame
)))
1470 if (XBUFFER (XWINDOW (selected_window
)->buffer
) != current_buffer
)
1471 set_buffer_internal (XBUFFER (XWINDOW (selected_window
)->buffer
));
1475 /* Now we have read a key sequence of length I,
1476 or else I is 0 and we found end of file. */
1478 if (i
== 0) /* End of file -- happens only in */
1479 return Qnil
; /* a kbd macro, at the end. */
1480 /* -1 means read_key_sequence got a menu that was rejected.
1481 Just loop around and read another command. */
1485 this_command_key_count
= 0;
1486 this_command_key_count_reset
= 0;
1487 this_single_command_key_start
= 0;
1491 last_command_char
= keybuf
[i
- 1];
1493 /* If the previous command tried to force a specific window-start,
1494 forget about that, in case this command moves point far away
1495 from that position. But also throw away beg_unchanged and
1496 end_unchanged information in that case, so that redisplay will
1497 update the whole window properly. */
1498 if (!NILP (XWINDOW (selected_window
)->force_start
))
1501 XWINDOW (selected_window
)->force_start
= Qnil
;
1502 b
= XBUFFER (XWINDOW (selected_window
)->buffer
);
1503 BUF_BEG_UNCHANGED (b
) = BUF_END_UNCHANGED (b
) = 0;
1506 cmd
= read_key_sequence_cmd
;
1507 if (!NILP (Vexecuting_macro
))
1509 if (!NILP (Vquit_flag
))
1511 Vexecuting_macro
= Qt
;
1512 QUIT
; /* Make some noise. */
1513 /* Will return since macro now empty. */
1517 /* Do redisplay processing after this command except in special
1518 cases identified below. */
1519 prev_buffer
= current_buffer
;
1520 prev_modiff
= MODIFF
;
1521 last_point_position
= PT
;
1522 XSETBUFFER (last_point_position_buffer
, prev_buffer
);
1524 /* By default, we adjust point to a boundary of a region that
1525 has such a property that should be treated intangible
1526 (e.g. composition, display). But, some commands will set
1527 this variable differently. */
1528 Vdisable_point_adjustment
= Qnil
;
1530 /* Process filters and timers may have messed with deactivate-mark.
1531 reset it before we execute the command. */
1532 Vdeactivate_mark
= Qnil
;
1534 /* Remap command through active keymaps */
1535 Vthis_original_command
= cmd
;
1539 if (cmd1
= Fcommand_remapping (cmd
), !NILP (cmd1
))
1543 /* Execute the command. */
1545 Vthis_command
= cmd
;
1546 real_this_command
= cmd
;
1547 /* Note that the value cell will never directly contain nil
1548 if the symbol is a local variable. */
1549 if (!NILP (Vpre_command_hook
) && !NILP (Vrun_hooks
))
1550 safe_run_hooks (Qpre_command_hook
);
1552 already_adjusted
= 0;
1554 if (NILP (Vthis_command
))
1556 /* nil means key is undefined. */
1558 current_kboard
->defining_kbd_macro
= Qnil
;
1559 update_mode_lines
= 1;
1560 current_kboard
->Vprefix_arg
= Qnil
;
1564 if (NILP (current_kboard
->Vprefix_arg
) && ! no_direct
)
1566 /* In case we jump to directly_done. */
1567 Vcurrent_prefix_arg
= current_kboard
->Vprefix_arg
;
1569 /* Recognize some common commands in common situations and
1570 do them directly. */
1571 if (EQ (Vthis_command
, Qforward_char
) && PT
< ZV
)
1573 struct Lisp_Char_Table
*dp
1574 = window_display_table (XWINDOW (selected_window
));
1575 lose
= FETCH_CHAR (PT_BYTE
);
1577 if (! NILP (Vpost_command_hook
))
1578 /* Put this before calling adjust_point_for_property
1579 so it will only get called once in any case. */
1581 if (current_buffer
== prev_buffer
1582 && last_point_position
!= PT
1583 && NILP (Vdisable_point_adjustment
)
1584 && NILP (Vglobal_disable_point_adjustment
))
1585 adjust_point_for_property (last_point_position
, 0);
1586 already_adjusted
= 1;
1587 if (PT
== last_point_position
+ 1
1589 ? (VECTORP (DISP_CHAR_VECTOR (dp
, lose
))
1590 ? XVECTOR (DISP_CHAR_VECTOR (dp
, lose
))->size
== 1
1591 : (NILP (DISP_CHAR_VECTOR (dp
, lose
))
1592 && (lose
>= 0x20 && lose
< 0x7f)))
1593 : (lose
>= 0x20 && lose
< 0x7f))
1594 /* To extract the case of continuation on
1595 wide-column characters. */
1596 && (WIDTH_BY_CHAR_HEAD (FETCH_BYTE (PT_BYTE
)) == 1)
1597 && (XFASTINT (XWINDOW (selected_window
)->last_modified
)
1599 && (XFASTINT (XWINDOW (selected_window
)->last_overlay_modified
)
1601 && (XFASTINT (XWINDOW (selected_window
)->last_point
)
1603 && !windows_or_buffers_changed
1604 && EQ (current_buffer
->selective_display
, Qnil
)
1605 && !detect_input_pending ()
1606 && NILP (XWINDOW (selected_window
)->column_number_displayed
)
1607 && NILP (Vexecuting_macro
))
1608 direct_output_forward_char (1);
1611 else if (EQ (Vthis_command
, Qbackward_char
) && PT
> BEGV
)
1613 struct Lisp_Char_Table
*dp
1614 = window_display_table (XWINDOW (selected_window
));
1616 lose
= FETCH_CHAR (PT_BYTE
);
1617 if (! NILP (Vpost_command_hook
))
1619 if (current_buffer
== prev_buffer
1620 && last_point_position
!= PT
1621 && NILP (Vdisable_point_adjustment
)
1622 && NILP (Vglobal_disable_point_adjustment
))
1623 adjust_point_for_property (last_point_position
, 0);
1624 already_adjusted
= 1;
1625 if (PT
== last_point_position
- 1
1627 ? (VECTORP (DISP_CHAR_VECTOR (dp
, lose
))
1628 ? XVECTOR (DISP_CHAR_VECTOR (dp
, lose
))->size
== 1
1629 : (NILP (DISP_CHAR_VECTOR (dp
, lose
))
1630 && (lose
>= 0x20 && lose
< 0x7f)))
1631 : (lose
>= 0x20 && lose
< 0x7f))
1632 && (XFASTINT (XWINDOW (selected_window
)->last_modified
)
1634 && (XFASTINT (XWINDOW (selected_window
)->last_overlay_modified
)
1636 && (XFASTINT (XWINDOW (selected_window
)->last_point
)
1638 && !windows_or_buffers_changed
1639 && EQ (current_buffer
->selective_display
, Qnil
)
1640 && !detect_input_pending ()
1641 && NILP (XWINDOW (selected_window
)->column_number_displayed
)
1642 && NILP (Vexecuting_macro
))
1643 direct_output_forward_char (-1);
1646 else if (EQ (Vthis_command
, Qself_insert_command
)
1647 /* Try this optimization only on char keystrokes. */
1648 && NATNUMP (last_command_char
)
1649 && CHAR_VALID_P (XFASTINT (last_command_char
), 0))
1652 = translate_char (Vtranslation_table_for_input
,
1653 XFASTINT (last_command_char
), 0, 0, 0);
1655 if (NILP (Vexecuting_macro
)
1656 && !EQ (minibuf_window
, selected_window
))
1658 if (!nonundocount
|| nonundocount
>= 20)
1666 lose
= ((XFASTINT (XWINDOW (selected_window
)->last_modified
)
1668 || (XFASTINT (XWINDOW (selected_window
)->last_overlay_modified
)
1670 || (XFASTINT (XWINDOW (selected_window
)->last_point
)
1672 || MODIFF
<= SAVE_MODIFF
1673 || windows_or_buffers_changed
1674 || !EQ (current_buffer
->selective_display
, Qnil
)
1675 || detect_input_pending ()
1676 || !NILP (XWINDOW (selected_window
)->column_number_displayed
)
1677 || !NILP (Vexecuting_macro
));
1679 value
= internal_self_insert (c
, 0);
1684 if (! NILP (Vpost_command_hook
))
1685 /* Put this before calling adjust_point_for_property
1686 so it will only get called once in any case. */
1689 /* VALUE == 1 when AFTER-CHANGE functions are
1690 installed which is the case most of the time
1691 because FONT-LOCK installs one. */
1692 if (!lose
&& !value
)
1693 direct_output_for_insert (c
);
1698 /* Here for a command that isn't executed directly */
1701 #ifdef HAVE_X_WINDOWS
1702 int scount
= SPECPDL_INDEX ();
1704 if (display_hourglass_p
1705 && NILP (Vexecuting_macro
))
1707 record_unwind_protect (cancel_hourglass_unwind
, Qnil
);
1713 if (NILP (current_kboard
->Vprefix_arg
))
1715 Fcommand_execute (Vthis_command
, Qnil
, Qnil
, Qnil
);
1717 #ifdef HAVE_X_WINDOWS
1718 /* Do not check display_hourglass_p here, because
1719 Fcommand_execute could change it, but we should cancel
1720 hourglass cursor anyway.
1721 But don't cancel the hourglass within a macro
1722 just because a command in the macro finishes. */
1723 if (NILP (Vexecuting_macro
))
1724 unbind_to (scount
, Qnil
);
1729 current_kboard
->Vlast_prefix_arg
= Vcurrent_prefix_arg
;
1731 /* Note that the value cell will never directly contain nil
1732 if the symbol is a local variable. */
1733 if (!NILP (Vpost_command_hook
) && !NILP (Vrun_hooks
))
1734 safe_run_hooks (Qpost_command_hook
);
1736 /* If displaying a message, resize the echo area window to fit
1737 that message's size exactly. */
1738 if (!NILP (echo_area_buffer
[0]))
1739 resize_echo_area_exactly ();
1741 if (!NILP (Vdeferred_action_list
))
1742 safe_run_hooks (Qdeferred_action_function
);
1744 if (!NILP (Vpost_command_idle_hook
) && !NILP (Vrun_hooks
))
1746 if (NILP (Vunread_command_events
)
1747 && NILP (Vunread_input_method_events
)
1748 && NILP (Vunread_post_input_method_events
)
1749 && NILP (Vexecuting_macro
)
1750 && !NILP (sit_for (0, post_command_idle_delay
, 0, 1, 1)))
1751 safe_run_hooks (Qpost_command_idle_hook
);
1754 /* If there is a prefix argument,
1755 1) We don't want Vlast_command to be ``universal-argument''
1756 (that would be dumb), so don't set Vlast_command,
1757 2) we want to leave echoing on so that the prefix will be
1758 echoed as part of this key sequence, so don't call
1760 3) we want to leave this_command_key_count non-zero, so that
1761 read_char will realize that it is re-reading a character, and
1762 not echo it a second time.
1764 If the command didn't actually create a prefix arg,
1765 but is merely a frame event that is transparent to prefix args,
1766 then the above doesn't apply. */
1767 if (NILP (current_kboard
->Vprefix_arg
) || CONSP (last_command_char
))
1769 current_kboard
->Vlast_command
= Vthis_command
;
1770 current_kboard
->Vreal_last_command
= real_this_command
;
1772 this_command_key_count
= 0;
1773 this_command_key_count_reset
= 0;
1774 this_single_command_key_start
= 0;
1777 if (!NILP (current_buffer
->mark_active
) && !NILP (Vrun_hooks
))
1779 if (!NILP (Vdeactivate_mark
) && !NILP (Vtransient_mark_mode
))
1781 /* We could also call `deactivate'mark'. */
1782 if (EQ (Vtransient_mark_mode
, Qlambda
))
1783 Vtransient_mark_mode
= Qnil
;
1786 current_buffer
->mark_active
= Qnil
;
1787 call1 (Vrun_hooks
, intern ("deactivate-mark-hook"));
1790 else if (current_buffer
!= prev_buffer
|| MODIFF
!= prev_modiff
)
1791 call1 (Vrun_hooks
, intern ("activate-mark-hook"));
1796 if (current_buffer
== prev_buffer
1797 && last_point_position
!= PT
1798 && NILP (Vdisable_point_adjustment
)
1799 && NILP (Vglobal_disable_point_adjustment
)
1800 && !already_adjusted
)
1801 adjust_point_for_property (last_point_position
, MODIFF
!= prev_modiff
);
1803 /* Install chars successfully executed in kbd macro. */
1805 if (!NILP (current_kboard
->defining_kbd_macro
)
1806 && NILP (current_kboard
->Vprefix_arg
))
1807 finalize_kbd_macro_chars ();
1811 any_kboard_state ();
1816 extern Lisp_Object Qcomposition
, Qdisplay
;
1818 /* Adjust point to a boundary of a region that has such a property
1819 that should be treated intangible. For the moment, we check
1820 `composition', `display' and `invisible' properties.
1821 LAST_PT is the last position of point. */
1823 extern Lisp_Object Qafter_string
, Qbefore_string
;
1824 extern Lisp_Object get_pos_property
P_ ((Lisp_Object
, Lisp_Object
, Lisp_Object
));
1827 adjust_point_for_property (last_pt
, modified
)
1832 Lisp_Object val
, overlay
, tmp
;
1833 int check_composition
= 1, check_display
= 1, check_invisible
= 1;
1836 /* FIXME: cycling is probably not necessary because these properties
1837 can't be usefully combined anyway. */
1838 while (check_composition
|| check_display
|| check_invisible
)
1840 if (check_composition
1841 && PT
> BEGV
&& PT
< ZV
1842 && get_property_and_range (PT
, Qcomposition
, &val
, &beg
, &end
, Qnil
)
1843 && COMPOSITION_VALID_P (beg
, end
, val
)
1844 && beg
< PT
/* && end > PT <- It's always the case. */
1845 && (last_pt
<= beg
|| last_pt
>= end
))
1848 SET_PT (PT
< last_pt
? beg
: end
);
1849 check_display
= check_invisible
= 1;
1851 check_composition
= 0;
1853 && PT
> BEGV
&& PT
< ZV
1854 && !NILP (val
= get_char_property_and_overlay
1855 (make_number (PT
), Qdisplay
, Qnil
, &overlay
))
1856 && display_prop_intangible_p (val
)
1857 && (!OVERLAYP (overlay
)
1858 ? get_property_and_range (PT
, Qdisplay
, &val
, &beg
, &end
, Qnil
)
1859 : (beg
= OVERLAY_POSITION (OVERLAY_START (overlay
)),
1860 end
= OVERLAY_POSITION (OVERLAY_END (overlay
))))
1861 && beg
< PT
) /* && end > PT <- It's always the case. */
1864 SET_PT (PT
< last_pt
? beg
: end
);
1865 check_composition
= check_invisible
= 1;
1868 if (check_invisible
&& PT
> BEGV
&& PT
< ZV
)
1870 int inv
, ellipsis
= 0;
1873 /* Find boundaries `beg' and `end' of the invisible area, if any. */
1875 && !NILP (val
= get_char_property_and_overlay
1876 (make_number (end
), Qinvisible
, Qnil
, &overlay
))
1877 && (inv
= TEXT_PROP_MEANS_INVISIBLE (val
)))
1879 ellipsis
= ellipsis
|| inv
> 1
1880 || (OVERLAYP (overlay
)
1881 && (!NILP (Foverlay_get (overlay
, Qafter_string
))
1882 || !NILP (Foverlay_get (overlay
, Qbefore_string
))));
1883 tmp
= Fnext_single_char_property_change
1884 (make_number (end
), Qinvisible
, Qnil
, Qnil
);
1885 end
= NATNUMP (tmp
) ? XFASTINT (tmp
) : ZV
;
1888 && !NILP (val
= get_char_property_and_overlay
1889 (make_number (beg
- 1), Qinvisible
, Qnil
, &overlay
))
1890 && (inv
= TEXT_PROP_MEANS_INVISIBLE (val
)))
1892 ellipsis
= ellipsis
|| inv
> 1
1893 || (OVERLAYP (overlay
)
1894 && (!NILP (Foverlay_get (overlay
, Qafter_string
))
1895 || !NILP (Foverlay_get (overlay
, Qbefore_string
))));
1896 tmp
= Fprevious_single_char_property_change
1897 (make_number (beg
), Qinvisible
, Qnil
, Qnil
);
1898 beg
= NATNUMP (tmp
) ? XFASTINT (tmp
) : BEGV
;
1901 /* Move away from the inside area. */
1902 if (beg
< PT
&& end
> PT
)
1904 SET_PT ((orig_pt
== PT
&& (last_pt
< beg
|| last_pt
> end
))
1905 /* We haven't moved yet (so we don't need to fear
1906 infinite-looping) and we were outside the range
1907 before (so either end of the range still corresponds
1908 to a move in the right direction): pretend we moved
1909 less than we actually did, so that we still have
1910 more freedom below in choosing which end of the range
1912 ? (orig_pt
= -1, PT
< last_pt
? end
: beg
)
1913 /* We either have moved already or the last point
1914 was already in the range: we don't get to choose
1915 which end of the range we have to go to. */
1916 : (PT
< last_pt
? beg
: end
));
1917 check_composition
= check_display
= 1;
1919 #if 0 /* This assertion isn't correct, because SET_PT may end up setting
1920 the point to something other than its argument, due to
1921 point-motion hooks, intangibility, etc. */
1922 xassert (PT
== beg
|| PT
== end
);
1925 /* Pretend the area doesn't exist if the buffer is not
1927 if (!modified
&& !ellipsis
&& beg
< end
)
1929 if (last_pt
== beg
&& PT
== end
&& end
< ZV
)
1930 (check_composition
= check_display
= 1, SET_PT (end
+ 1));
1931 else if (last_pt
== end
&& PT
== beg
&& beg
> BEGV
)
1932 (check_composition
= check_display
= 1, SET_PT (beg
- 1));
1933 else if (PT
== ((PT
< last_pt
) ? beg
: end
))
1934 /* We've already moved as far as we can. Trying to go
1935 to the other end would mean moving backwards and thus
1936 could lead to an infinite loop. */
1938 else if (val
= get_pos_property (make_number (PT
),
1940 TEXT_PROP_MEANS_INVISIBLE (val
)
1941 && (val
= get_pos_property
1942 (make_number (PT
== beg
? end
: beg
),
1944 !TEXT_PROP_MEANS_INVISIBLE (val
)))
1945 (check_composition
= check_display
= 1,
1946 SET_PT (PT
== beg
? end
: beg
));
1949 check_invisible
= 0;
1953 /* Subroutine for safe_run_hooks: run the hook HOOK. */
1956 safe_run_hooks_1 (hook
)
1959 return call1 (Vrun_hooks
, Vinhibit_quit
);
1962 /* Subroutine for safe_run_hooks: handle an error by clearing out the hook. */
1965 safe_run_hooks_error (data
)
1968 Lisp_Object args
[3];
1969 args
[0] = build_string ("Error in %s: %s");
1970 args
[1] = Vinhibit_quit
;
1973 return Fset (Vinhibit_quit
, Qnil
);
1976 /* If we get an error while running the hook, cause the hook variable
1977 to be nil. Also inhibit quits, so that C-g won't cause the hook
1978 to mysteriously evaporate. */
1981 safe_run_hooks (hook
)
1984 int count
= SPECPDL_INDEX ();
1985 specbind (Qinhibit_quit
, hook
);
1987 internal_condition_case (safe_run_hooks_1
, Qt
, safe_run_hooks_error
);
1989 unbind_to (count
, Qnil
);
1993 /* Number of seconds between polling for input. This is a Lisp
1994 variable that can be bound. */
1996 EMACS_INT polling_period
;
1998 /* Nonzero means polling for input is temporarily suppressed. */
2000 int poll_suppress_count
;
2002 /* Asynchronous timer for polling. */
2004 struct atimer
*poll_timer
;
2007 #ifdef POLL_FOR_INPUT
2009 /* Poll for input, so what we catch a C-g if it comes in. This
2010 function is called from x_make_frame_visible, see comment
2016 if (interrupt_input_blocked
== 0
2017 && !waiting_for_input
)
2018 read_avail_input (0);
2021 /* Timer callback function for poll_timer. TIMER is equal to
2025 poll_for_input (timer
)
2026 struct atimer
*timer
;
2028 if (poll_suppress_count
== 0)
2029 poll_for_input_1 ();
2032 #endif /* POLL_FOR_INPUT */
2034 /* Begin signals to poll for input, if they are appropriate.
2035 This function is called unconditionally from various places. */
2040 #ifdef POLL_FOR_INPUT
2041 /* XXX This condition was (read_socket_hook && !interrupt_input),
2042 but read_socket_hook is not global anymore. Let's pretend that
2044 if (!interrupt_input
)
2046 /* Turn alarm handling on unconditionally. It might have
2047 been turned off in process.c. */
2048 turn_on_atimers (1);
2050 /* If poll timer doesn't exist, are we need one with
2051 a different interval, start a new one. */
2052 if (poll_timer
== NULL
2053 || EMACS_SECS (poll_timer
->interval
) != polling_period
)
2055 EMACS_TIME interval
;
2058 cancel_atimer (poll_timer
);
2060 EMACS_SET_SECS_USECS (interval
, polling_period
, 0);
2061 poll_timer
= start_atimer (ATIMER_CONTINUOUS
, interval
,
2062 poll_for_input
, NULL
);
2065 /* Let the timer's callback function poll for input
2066 if this becomes zero. */
2067 --poll_suppress_count
;
2072 /* Nonzero if we are using polling to handle input asynchronously. */
2075 input_polling_used ()
2077 #ifdef POLL_FOR_INPUT
2078 /* XXX This condition was (read_socket_hook && !interrupt_input),
2079 but read_socket_hook is not global anymore. Let's pretend that
2081 return !interrupt_input
;
2087 /* Turn off polling. */
2092 #ifdef POLL_FOR_INPUT
2093 /* XXX This condition was (read_socket_hook && !interrupt_input),
2094 but read_socket_hook is not global anymore. Let's pretend that
2096 if (!interrupt_input
)
2097 ++poll_suppress_count
;
2101 /* Set the value of poll_suppress_count to COUNT
2102 and start or stop polling accordingly. */
2105 set_poll_suppress_count (count
)
2108 #ifdef POLL_FOR_INPUT
2109 if (count
== 0 && poll_suppress_count
!= 0)
2111 poll_suppress_count
= 1;
2114 else if (count
!= 0 && poll_suppress_count
== 0)
2118 poll_suppress_count
= count
;
2122 /* Bind polling_period to a value at least N.
2123 But don't decrease it. */
2126 bind_polling_period (n
)
2129 #ifdef POLL_FOR_INPUT
2130 int new = polling_period
;
2135 stop_other_atimers (poll_timer
);
2137 specbind (Qpolling_period
, make_number (new));
2138 /* Start a new alarm with the new period. */
2143 /* Apply the control modifier to CHARACTER. */
2149 /* Save the upper bits here. */
2150 int upper
= c
& ~0177;
2154 /* Everything in the columns containing the upper-case letters
2155 denotes a control character. */
2156 if (c
>= 0100 && c
< 0140)
2160 /* Set the shift modifier for a control char
2161 made from a shifted letter. But only for letters! */
2162 if (oc
>= 'A' && oc
<= 'Z')
2163 c
|= shift_modifier
;
2166 /* The lower-case letters denote control characters too. */
2167 else if (c
>= 'a' && c
<= 'z')
2170 /* Include the bits for control and shift
2171 only if the basic ASCII code can't indicate them. */
2175 /* Replace the high bits. */
2176 c
|= (upper
& ~ctrl_modifier
);
2181 /* Display help echo in the echo area.
2183 HELP a string means display that string, HELP nil means clear the
2184 help echo. If HELP is a function, call it with OBJECT and POS as
2185 arguments; the function should return a help string or nil for
2186 none. For all other types of HELP evaluate it to obtain a string.
2188 WINDOW is the window in which the help was generated, if any.
2189 It is nil if not in a window.
2191 If OBJECT is a buffer, POS is the position in the buffer where the
2192 `help-echo' text property was found.
2194 If OBJECT is an overlay, that overlay has a `help-echo' property,
2195 and POS is the position in the overlay's buffer under the mouse.
2197 If OBJECT is a string (an overlay string or a string displayed with
2198 the `display' property). POS is the position in that string under
2201 OK_TO_OVERWRITE_KEYSTROKE_ECHO non-zero means it's okay if the help
2202 echo overwrites a keystroke echo currently displayed in the echo
2205 Note: this function may only be called with HELP nil or a string
2206 from X code running asynchronously. */
2209 show_help_echo (help
, window
, object
, pos
, ok_to_overwrite_keystroke_echo
)
2210 Lisp_Object help
, window
, object
, pos
;
2211 int ok_to_overwrite_keystroke_echo
;
2213 if (!NILP (help
) && !STRINGP (help
))
2215 if (FUNCTIONP (help
))
2217 Lisp_Object args
[4];
2222 help
= safe_call (4, args
);
2225 help
= safe_eval (help
);
2227 if (!STRINGP (help
))
2231 if (STRINGP (help
) || NILP (help
))
2233 if (!NILP (Vshow_help_function
))
2234 call1 (Vshow_help_function
, help
);
2235 else if (/* Don't overwrite minibuffer contents. */
2236 !MINI_WINDOW_P (XWINDOW (selected_window
))
2237 /* Don't overwrite a keystroke echo. */
2238 && (NILP (echo_message_buffer
)
2239 || ok_to_overwrite_keystroke_echo
)
2240 /* Don't overwrite a prompt. */
2241 && !cursor_in_echo_area
)
2245 int count
= SPECPDL_INDEX ();
2247 if (!help_echo_showing_p
)
2248 Vpre_help_message
= current_message ();
2250 specbind (Qmessage_truncate_lines
, Qt
);
2251 message3_nolog (help
, SBYTES (help
),
2252 STRING_MULTIBYTE (help
));
2253 unbind_to (count
, Qnil
);
2255 else if (STRINGP (Vpre_help_message
))
2257 message3_nolog (Vpre_help_message
,
2258 SBYTES (Vpre_help_message
),
2259 STRING_MULTIBYTE (Vpre_help_message
));
2260 Vpre_help_message
= Qnil
;
2266 help_echo_showing_p
= STRINGP (help
);
2272 /* Input of single characters from keyboard */
2274 Lisp_Object
print_help ();
2275 static Lisp_Object
kbd_buffer_get_event ();
2276 static void record_char ();
2279 static jmp_buf wrong_kboard_jmpbuf
;
2282 #define STOP_POLLING \
2283 do { if (! polling_stopped_here) stop_polling (); \
2284 polling_stopped_here = 1; } while (0)
2286 #define RESUME_POLLING \
2287 do { if (polling_stopped_here) start_polling (); \
2288 polling_stopped_here = 0; } while (0)
2290 /* read a character from the keyboard; call the redisplay if needed */
2291 /* commandflag 0 means do not do auto-saving, but do do redisplay.
2292 -1 means do not do redisplay, but do do autosaving.
2295 /* The arguments MAPS and NMAPS are for menu prompting.
2296 MAPS is an array of keymaps; NMAPS is the length of MAPS.
2298 PREV_EVENT is the previous input event, or nil if we are reading
2299 the first event of a key sequence (or not reading a key sequence).
2300 If PREV_EVENT is t, that is a "magic" value that says
2301 not to run input methods, but in other respects to act as if
2302 not reading a key sequence.
2304 If USED_MOUSE_MENU is non-null, then we set *USED_MOUSE_MENU to 1
2305 if we used a mouse menu to read the input, or zero otherwise. If
2306 USED_MOUSE_MENU is null, we don't dereference it.
2308 Value is t if we showed a menu and the user rejected it. */
2311 read_char (commandflag
, nmaps
, maps
, prev_event
, used_mouse_menu
)
2315 Lisp_Object prev_event
;
2316 int *used_mouse_menu
;
2318 volatile Lisp_Object c
;
2320 jmp_buf local_getcjmp
;
2322 volatile int key_already_recorded
= 0;
2323 Lisp_Object tem
, save
;
2324 volatile Lisp_Object previous_echo_area_message
;
2325 volatile Lisp_Object also_record
;
2326 volatile int reread
;
2327 struct gcpro gcpro1
, gcpro2
;
2328 EMACS_TIME last_idle_start
;
2329 int polling_stopped_here
= 0;
2333 #if 0 /* This was commented out as part of fixing echo for C-u left. */
2334 before_command_key_count
= this_command_key_count
;
2335 before_command_echo_length
= echo_length ();
2338 previous_echo_area_message
= Qnil
;
2340 GCPRO2 (c
, previous_echo_area_message
);
2345 if (CONSP (Vunread_post_input_method_events
))
2347 c
= XCAR (Vunread_post_input_method_events
);
2348 Vunread_post_input_method_events
2349 = XCDR (Vunread_post_input_method_events
);
2351 /* Undo what read_char_x_menu_prompt did when it unread
2352 additional keys returned by Fx_popup_menu. */
2354 && (SYMBOLP (XCAR (c
)) || INTEGERP (XCAR (c
)))
2362 if (unread_command_char
!= -1)
2364 XSETINT (c
, unread_command_char
);
2365 unread_command_char
= -1;
2371 if (CONSP (Vunread_command_events
))
2373 c
= XCAR (Vunread_command_events
);
2374 Vunread_command_events
= XCDR (Vunread_command_events
);
2376 /* Undo what read_char_x_menu_prompt did when it unread
2377 additional keys returned by Fx_popup_menu. */
2379 && EQ (XCDR (c
), Qdisabled
)
2380 && (SYMBOLP (XCAR (c
)) || INTEGERP (XCAR (c
))))
2383 /* If the queued event is something that used the mouse,
2384 set used_mouse_menu accordingly. */
2386 && (EQ (c
, Qtool_bar
) || EQ (c
, Qmenu_bar
)))
2387 *used_mouse_menu
= 1;
2390 goto reread_for_input_method
;
2393 if (CONSP (Vunread_input_method_events
))
2395 c
= XCAR (Vunread_input_method_events
);
2396 Vunread_input_method_events
= XCDR (Vunread_input_method_events
);
2398 /* Undo what read_char_x_menu_prompt did when it unread
2399 additional keys returned by Fx_popup_menu. */
2401 && (SYMBOLP (XCAR (c
)) || INTEGERP (XCAR (c
)))
2405 goto reread_for_input_method
;
2408 this_command_key_count_reset
= 0;
2410 if (!NILP (Vexecuting_macro
))
2412 /* We set this to Qmacro; since that's not a frame, nobody will
2413 try to switch frames on us, and the selected window will
2416 Since this event came from a macro, it would be misleading to
2417 leave internal_last_event_frame set to wherever the last
2418 real event came from. Normally, a switch-frame event selects
2419 internal_last_event_frame after each command is read, but
2420 events read from a macro should never cause a new frame to be
2422 Vlast_event_frame
= internal_last_event_frame
= Qmacro
;
2424 /* Exit the macro if we are at the end.
2425 Also, some things replace the macro with t
2426 to force an early exit. */
2427 if (EQ (Vexecuting_macro
, Qt
)
2428 || executing_macro_index
>= XFASTINT (Flength (Vexecuting_macro
)))
2434 c
= Faref (Vexecuting_macro
, make_number (executing_macro_index
));
2435 if (STRINGP (Vexecuting_macro
)
2436 && (XINT (c
) & 0x80))
2437 XSETFASTINT (c
, CHAR_META
| (XINT (c
) & ~0x80));
2439 executing_macro_index
++;
2444 if (!NILP (unread_switch_frame
))
2446 c
= unread_switch_frame
;
2447 unread_switch_frame
= Qnil
;
2449 /* This event should make it into this_command_keys, and get echoed
2450 again, so we do not set `reread'. */
2454 /* if redisplay was requested */
2455 if (commandflag
>= 0)
2457 /* If there is pending input, process any events which are not
2458 user-visible, such as X selection_request events. */
2460 || detect_input_pending_run_timers (0))
2461 swallow_events (0); /* may clear input_pending */
2463 /* Redisplay if no pending input. */
2464 while (!input_pending
)
2466 if (help_echo_showing_p
&& !EQ (selected_window
, minibuf_window
))
2467 redisplay_preserve_echo_area (5);
2472 /* Normal case: no input arrived during redisplay. */
2475 /* Input arrived and pre-empted redisplay.
2476 Process any events which are not user-visible. */
2478 /* If that cleared input_pending, try again to redisplay. */
2482 /* Message turns off echoing unless more keystrokes turn it on again.
2484 The code in 20.x for the condition was
2486 1. echo_area_glyphs && *echo_area_glyphs
2487 2. && echo_area_glyphs != current_kboard->echobuf
2488 3. && ok_to_echo_at_next_pause != echo_area_glyphs
2490 (1) means there's a current message displayed
2492 (2) means it's not the message from echoing from the current
2495 (3) There's only one place in 20.x where ok_to_echo_at_next_pause
2496 is set to a non-null value. This is done in read_char and it is
2497 set to echo_area_glyphs after a call to echo_char. That means
2498 ok_to_echo_at_next_pause is either null or
2499 current_kboard->echobuf with the appropriate current_kboard at
2502 So, condition (3) means in clear text ok_to_echo_at_next_pause
2503 must be either null, or the current message isn't from echoing at
2504 all, or it's from echoing from a different kboard than the
2507 if (/* There currently is something in the echo area. */
2508 !NILP (echo_area_buffer
[0])
2509 && (/* And it's either not from echoing. */
2510 !EQ (echo_area_buffer
[0], echo_message_buffer
)
2511 /* Or it's an echo from a different kboard. */
2512 || echo_kboard
!= current_kboard
2513 /* Or we explicitly allow overwriting whatever there is. */
2514 || ok_to_echo_at_next_pause
== NULL
))
2519 /* Try reading a character via menu prompting in the minibuf.
2520 Try this before the sit-for, because the sit-for
2521 would do the wrong thing if we are supposed to do
2522 menu prompting. If EVENT_HAS_PARAMETERS then we are reading
2523 after a mouse event so don't try a minibuf menu. */
2525 if (nmaps
> 0 && INTERACTIVE
2526 && !NILP (prev_event
) && ! EVENT_HAS_PARAMETERS (prev_event
)
2527 /* Don't bring up a menu if we already have another event. */
2528 && NILP (Vunread_command_events
)
2529 && unread_command_char
< 0
2530 && !detect_input_pending_run_timers (0))
2532 c
= read_char_minibuf_menu_prompt (commandflag
, nmaps
, maps
);
2535 key_already_recorded
= 1;
2540 /* Make a longjmp point for quits to use, but don't alter getcjmp just yet.
2541 We will do that below, temporarily for short sections of code,
2542 when appropriate. local_getcjmp must be in effect
2543 around any call to sit_for or kbd_buffer_get_event;
2544 it *must not* be in effect when we call redisplay. */
2546 if (_setjmp (local_getcjmp
))
2548 XSETINT (c
, quit_char
);
2549 internal_last_event_frame
= selected_frame
;
2550 Vlast_event_frame
= internal_last_event_frame
;
2551 /* If we report the quit char as an event,
2552 don't do so more than once. */
2553 if (!NILP (Vinhibit_quit
))
2558 KBOARD
*kb
= FRAME_KBOARD (XFRAME (selected_frame
));
2559 if (kb
!= current_kboard
)
2561 Lisp_Object link
= kb
->kbd_queue
;
2562 /* We shouldn't get here if we were in single-kboard mode! */
2567 while (CONSP (XCDR (link
)))
2569 if (!NILP (XCDR (link
)))
2573 kb
->kbd_queue
= Fcons (c
, Qnil
);
2575 XSETCDR (link
, Fcons (c
, Qnil
));
2576 kb
->kbd_queue_has_data
= 1;
2577 current_kboard
= kb
;
2578 /* This is going to exit from read_char
2579 so we had better get rid of this frame's stuff. */
2581 longjmp (wrong_kboard_jmpbuf
, 1);
2588 timer_start_idle ();
2590 /* If in middle of key sequence and minibuffer not active,
2591 start echoing if enough time elapses. */
2593 if (minibuf_level
== 0
2594 && !current_kboard
->immediate_echo
2595 && this_command_key_count
> 0
2597 && (FLOATP (Vecho_keystrokes
) || INTEGERP (Vecho_keystrokes
))
2598 && NILP (Fzerop (Vecho_keystrokes
))
2599 && (/* No message. */
2600 NILP (echo_area_buffer
[0])
2601 /* Or empty message. */
2602 || (BUF_BEG (XBUFFER (echo_area_buffer
[0]))
2603 == BUF_Z (XBUFFER (echo_area_buffer
[0])))
2604 /* Or already echoing from same kboard. */
2605 || (echo_kboard
&& ok_to_echo_at_next_pause
== echo_kboard
)
2606 /* Or not echoing before and echoing allowed. */
2607 || (!echo_kboard
&& ok_to_echo_at_next_pause
)))
2611 /* After a mouse event, start echoing right away.
2612 This is because we are probably about to display a menu,
2613 and we don't want to delay before doing so. */
2614 if (EVENT_HAS_PARAMETERS (prev_event
))
2619 double duration
= extract_float (Vecho_keystrokes
);
2620 sec
= (int) duration
;
2621 usec
= (duration
- sec
) * 1000000;
2622 save_getcjmp (save_jump
);
2623 restore_getcjmp (local_getcjmp
);
2624 tem0
= sit_for (sec
, usec
, 1, 1, 0);
2625 restore_getcjmp (save_jump
);
2627 && ! CONSP (Vunread_command_events
))
2632 /* Maybe auto save due to number of keystrokes. */
2634 if (commandflag
!= 0
2635 && auto_save_interval
> 0
2636 && num_nonmacro_input_events
- last_auto_save
> max (auto_save_interval
, 20)
2637 && !detect_input_pending_run_timers (0))
2639 Fdo_auto_save (Qnil
, Qnil
);
2640 /* Hooks can actually change some buffers in auto save. */
2644 /* Try reading using an X menu.
2645 This is never confused with reading using the minibuf
2646 because the recursive call of read_char in read_char_minibuf_menu_prompt
2647 does not pass on any keymaps. */
2649 if (nmaps
> 0 && INTERACTIVE
2650 && !NILP (prev_event
)
2651 && EVENT_HAS_PARAMETERS (prev_event
)
2652 && !EQ (XCAR (prev_event
), Qmenu_bar
)
2653 && !EQ (XCAR (prev_event
), Qtool_bar
)
2654 /* Don't bring up a menu if we already have another event. */
2655 && NILP (Vunread_command_events
)
2656 && unread_command_char
< 0)
2658 c
= read_char_x_menu_prompt (nmaps
, maps
, prev_event
, used_mouse_menu
);
2660 /* Now that we have read an event, Emacs is not idle. */
2666 /* Maybe autosave and/or garbage collect due to idleness. */
2668 if (INTERACTIVE
&& NILP (c
))
2670 int delay_level
, buffer_size
;
2672 /* Slow down auto saves logarithmically in size of current buffer,
2673 and garbage collect while we're at it. */
2674 if (! MINI_WINDOW_P (XWINDOW (selected_window
)))
2675 last_non_minibuf_size
= Z
- BEG
;
2676 buffer_size
= (last_non_minibuf_size
>> 8) + 1;
2678 while (buffer_size
> 64)
2679 delay_level
++, buffer_size
-= buffer_size
>> 2;
2680 if (delay_level
< 4) delay_level
= 4;
2681 /* delay_level is 4 for files under around 50k, 7 at 100k,
2682 9 at 200k, 11 at 300k, and 12 at 500k. It is 15 at 1 meg. */
2684 /* Auto save if enough time goes by without input. */
2685 if (commandflag
!= 0
2686 && num_nonmacro_input_events
> last_auto_save
2687 && INTEGERP (Vauto_save_timeout
)
2688 && XINT (Vauto_save_timeout
) > 0)
2692 save_getcjmp (save_jump
);
2693 restore_getcjmp (local_getcjmp
);
2694 tem0
= sit_for (delay_level
* XFASTINT (Vauto_save_timeout
) / 4,
2696 restore_getcjmp (save_jump
);
2699 && ! CONSP (Vunread_command_events
))
2701 Fdo_auto_save (Qnil
, Qnil
);
2703 /* If we have auto-saved and there is still no input
2704 available, garbage collect if there has been enough
2705 consing going on to make it worthwhile. */
2706 if (!detect_input_pending_run_timers (0)
2707 && consing_since_gc
> gc_cons_threshold
/ 2)
2708 Fgarbage_collect ();
2715 /* If this has become non-nil here, it has been set by a timer
2716 or sentinel or filter. */
2717 if (CONSP (Vunread_command_events
))
2719 c
= XCAR (Vunread_command_events
);
2720 Vunread_command_events
= XCDR (Vunread_command_events
);
2723 /* Read something from current KBOARD's side queue, if possible. */
2727 if (current_kboard
->kbd_queue_has_data
)
2729 if (!CONSP (current_kboard
->kbd_queue
))
2731 c
= XCAR (current_kboard
->kbd_queue
);
2732 current_kboard
->kbd_queue
2733 = XCDR (current_kboard
->kbd_queue
);
2734 if (NILP (current_kboard
->kbd_queue
))
2735 current_kboard
->kbd_queue_has_data
= 0;
2736 input_pending
= readable_events (0);
2737 if (EVENT_HAS_PARAMETERS (c
)
2738 && EQ (EVENT_HEAD_KIND (EVENT_HEAD (c
)), Qswitch_frame
))
2739 internal_last_event_frame
= XCAR (XCDR (c
));
2740 Vlast_event_frame
= internal_last_event_frame
;
2745 /* If current_kboard's side queue is empty check the other kboards.
2746 If one of them has data that we have not yet seen here,
2747 switch to it and process the data waiting for it.
2749 Note: if the events queued up for another kboard
2750 have already been seen here, and therefore are not a complete command,
2751 the kbd_queue_has_data field is 0, so we skip that kboard here.
2752 That's to avoid an infinite loop switching between kboards here. */
2753 if (NILP (c
) && !single_kboard
)
2756 for (kb
= all_kboards
; kb
; kb
= kb
->next_kboard
)
2757 if (kb
->kbd_queue_has_data
)
2759 current_kboard
= kb
;
2760 /* This is going to exit from read_char
2761 so we had better get rid of this frame's stuff. */
2763 longjmp (wrong_kboard_jmpbuf
, 1);
2772 /* Finally, we read from the main queue,
2773 and if that gives us something we can't use yet, we put it on the
2774 appropriate side queue and try again. */
2780 /* Actually read a character, waiting if necessary. */
2781 save_getcjmp (save_jump
);
2782 restore_getcjmp (local_getcjmp
);
2783 timer_start_idle ();
2784 c
= kbd_buffer_get_event (&kb
, used_mouse_menu
);
2785 restore_getcjmp (save_jump
);
2788 if (! NILP (c
) && (kb
!= current_kboard
))
2790 Lisp_Object link
= kb
->kbd_queue
;
2793 while (CONSP (XCDR (link
)))
2795 if (!NILP (XCDR (link
)))
2799 kb
->kbd_queue
= Fcons (c
, Qnil
);
2801 XSETCDR (link
, Fcons (c
, Qnil
));
2802 kb
->kbd_queue_has_data
= 1;
2806 current_kboard
= kb
;
2807 /* This is going to exit from read_char
2808 so we had better get rid of this frame's stuff. */
2810 longjmp (wrong_kboard_jmpbuf
, 1);
2815 /* Terminate Emacs in batch mode if at eof. */
2816 if (noninteractive
&& INTEGERP (c
) && XINT (c
) < 0)
2817 Fkill_emacs (make_number (1));
2821 /* Add in any extra modifiers, where appropriate. */
2822 if ((extra_keyboard_modifiers
& CHAR_CTL
)
2823 || ((extra_keyboard_modifiers
& 0177) < ' '
2824 && (extra_keyboard_modifiers
& 0177) != 0))
2825 XSETINT (c
, make_ctrl_char (XINT (c
)));
2827 /* Transfer any other modifier bits directly from
2828 extra_keyboard_modifiers to c. Ignore the actual character code
2829 in the low 16 bits of extra_keyboard_modifiers. */
2830 XSETINT (c
, XINT (c
) | (extra_keyboard_modifiers
& ~0xff7f & ~CHAR_CTL
));
2835 /* Record the last idle start time so that we can reset it
2836 should the next event read be a help-echo. */
2837 last_idle_start
= timer_idleness_start_time
;
2843 if (commandflag
>= 0
2844 && !input_pending
&& !detect_input_pending_run_timers (0))
2852 /* Buffer switch events are only for internal wakeups
2853 so don't show them to the user.
2854 Also, don't record a key if we already did. */
2855 if (BUFFERP (c
) || key_already_recorded
)
2858 /* Process special events within read_char
2859 and loop around to read another event. */
2862 tem
= access_keymap (get_keymap (Vspecial_event_map
, 0, 1), c
, 0, 0, 1);
2867 int was_locked
= single_kboard
;
2869 last_input_char
= c
;
2870 Fcommand_execute (tem
, Qnil
, Fvector (1, &last_input_char
), Qt
);
2872 if (CONSP (c
) && EQ (XCAR (c
), Qselect_window
))
2873 /* We stopped being idle for this event; undo that. This
2874 prevents automatic window selection (under
2875 mouse_autoselect_window from acting as a real input event, for
2876 example banishing the mouse under mouse-avoidance-mode. */
2877 timer_idleness_start_time
= last_idle_start
;
2879 /* Resume allowing input from any kboard, if that was true before. */
2881 any_kboard_state ();
2886 /* Handle things that only apply to characters. */
2889 /* If kbd_buffer_get_event gave us an EOF, return that. */
2893 if ((STRINGP (Vkeyboard_translate_table
)
2894 && SCHARS (Vkeyboard_translate_table
) > (unsigned) XFASTINT (c
))
2895 || (VECTORP (Vkeyboard_translate_table
)
2896 && XVECTOR (Vkeyboard_translate_table
)->size
> (unsigned) XFASTINT (c
))
2897 || (CHAR_TABLE_P (Vkeyboard_translate_table
)
2898 && CHAR_VALID_P (XINT (c
), 0)))
2901 d
= Faref (Vkeyboard_translate_table
, c
);
2902 /* nil in keyboard-translate-table means no translation. */
2908 /* If this event is a mouse click in the menu bar,
2909 return just menu-bar for now. Modify the mouse click event
2910 so we won't do this twice, then queue it up. */
2911 if (EVENT_HAS_PARAMETERS (c
)
2913 && CONSP (EVENT_START (c
))
2914 && CONSP (XCDR (EVENT_START (c
))))
2918 posn
= POSN_POSN (EVENT_START (c
));
2919 /* Handle menu-bar events:
2920 insert the dummy prefix event `menu-bar'. */
2921 if (EQ (posn
, Qmenu_bar
) || EQ (posn
, Qtool_bar
))
2923 /* Change menu-bar to (menu-bar) as the event "position". */
2924 POSN_SET_POSN (EVENT_START (c
), Fcons (posn
, Qnil
));
2927 Vunread_command_events
= Fcons (c
, Vunread_command_events
);
2932 /* Store these characters into recent_keys, the dribble file if any,
2933 and the keyboard macro being defined, if any. */
2935 if (! NILP (also_record
))
2936 record_char (also_record
);
2938 /* Wipe the echo area.
2939 But first, if we are about to use an input method,
2940 save the echo area contents for it to refer to. */
2942 && ! NILP (Vinput_method_function
)
2943 && (unsigned) XINT (c
) >= ' '
2944 && (unsigned) XINT (c
) != 127
2945 && (unsigned) XINT (c
) < 256)
2947 previous_echo_area_message
= Fcurrent_message ();
2948 Vinput_method_previous_message
= previous_echo_area_message
;
2951 /* Now wipe the echo area, except for help events which do their
2952 own stuff with the echo area. */
2954 || (!(EQ (Qhelp_echo
, XCAR (c
)))
2955 && !(EQ (Qswitch_frame
, XCAR (c
)))))
2957 if (!NILP (echo_area_buffer
[0]))
2958 safe_run_hooks (Qecho_area_clear_hook
);
2959 clear_message (1, 0);
2962 reread_for_input_method
:
2964 /* Pass this to the input method, if appropriate. */
2966 && ! NILP (Vinput_method_function
)
2967 /* Don't run the input method within a key sequence,
2968 after the first event of the key sequence. */
2969 && NILP (prev_event
)
2970 && (unsigned) XINT (c
) >= ' '
2971 && (unsigned) XINT (c
) != 127
2972 && (unsigned) XINT (c
) < 256)
2975 int key_count
, key_count_reset
;
2976 struct gcpro gcpro1
;
2977 int count
= SPECPDL_INDEX ();
2979 /* Save the echo status. */
2980 int saved_immediate_echo
= current_kboard
->immediate_echo
;
2981 struct kboard
*saved_ok_to_echo
= ok_to_echo_at_next_pause
;
2982 int saved_echo_after_prompt
= current_kboard
->echo_after_prompt
;
2985 if (before_command_restore_flag
)
2987 this_command_key_count
= before_command_key_count_1
;
2988 if (this_command_key_count
< this_single_command_key_start
)
2989 this_single_command_key_start
= this_command_key_count
;
2990 echo_truncate (before_command_echo_length_1
);
2991 before_command_restore_flag
= 0;
2995 /* Save the this_command_keys status. */
2996 key_count
= this_command_key_count
;
2997 key_count_reset
= this_command_key_count_reset
;
3000 keys
= Fcopy_sequence (this_command_keys
);
3005 /* Clear out this_command_keys. */
3006 this_command_key_count
= 0;
3007 this_command_key_count_reset
= 0;
3009 /* Now wipe the echo area. */
3010 if (!NILP (echo_area_buffer
[0]))
3011 safe_run_hooks (Qecho_area_clear_hook
);
3012 clear_message (1, 0);
3015 /* If we are not reading a key sequence,
3016 never use the echo area. */
3019 specbind (Qinput_method_use_echo_area
, Qt
);
3022 /* Call the input method. */
3023 tem
= call1 (Vinput_method_function
, c
);
3025 tem
= unbind_to (count
, tem
);
3027 /* Restore the saved echoing state
3028 and this_command_keys state. */
3029 this_command_key_count
= key_count
;
3030 this_command_key_count_reset
= key_count_reset
;
3032 this_command_keys
= keys
;
3035 ok_to_echo_at_next_pause
= saved_ok_to_echo
;
3036 current_kboard
->echo_after_prompt
= saved_echo_after_prompt
;
3037 if (saved_immediate_echo
)
3042 /* The input method can return no events. */
3045 /* Bring back the previous message, if any. */
3046 if (! NILP (previous_echo_area_message
))
3047 message_with_string ("%s", previous_echo_area_message
, 0);
3050 /* It returned one event or more. */
3052 Vunread_post_input_method_events
3053 = nconc2 (XCDR (tem
), Vunread_post_input_method_events
);
3058 /* Display help if not echoing. */
3059 if (CONSP (c
) && EQ (XCAR (c
), Qhelp_echo
))
3061 /* (help-echo FRAME HELP WINDOW OBJECT POS). */
3062 Lisp_Object help
, object
, position
, window
, tem
;
3064 tem
= Fcdr (XCDR (c
));
3067 window
= Fcar (tem
);
3069 object
= Fcar (tem
);
3071 position
= Fcar (tem
);
3073 show_help_echo (help
, window
, object
, position
, 0);
3075 /* We stopped being idle for this event; undo that. */
3076 timer_idleness_start_time
= last_idle_start
;
3080 if (! reread
|| this_command_key_count
== 0
3081 || this_command_key_count_reset
)
3084 /* Don't echo mouse motion events. */
3085 if ((FLOATP (Vecho_keystrokes
) || INTEGERP (Vecho_keystrokes
))
3086 && NILP (Fzerop (Vecho_keystrokes
))
3087 && ! (EVENT_HAS_PARAMETERS (c
)
3088 && EQ (EVENT_HEAD_KIND (EVENT_HEAD (c
)), Qmouse_movement
)))
3091 if (! NILP (also_record
))
3092 echo_char (also_record
);
3093 /* Once we reread a character, echoing can happen
3094 the next time we pause to read a new one. */
3095 ok_to_echo_at_next_pause
= current_kboard
;
3098 /* Record this character as part of the current key. */
3099 add_command_key (c
);
3100 if (! NILP (also_record
))
3101 add_command_key (also_record
);
3104 last_input_char
= c
;
3107 /* Process the help character specially if enabled */
3108 if (!NILP (Vhelp_form
) && help_char_p (c
))
3111 count
= SPECPDL_INDEX ();
3113 record_unwind_protect (Fset_window_configuration
,
3114 Fcurrent_window_configuration (Qnil
));
3116 tem0
= Feval (Vhelp_form
);
3118 internal_with_output_to_temp_buffer ("*Help*", print_help
, tem0
);
3122 c
= read_char (0, 0, 0, Qnil
, 0);
3123 while (BUFFERP (c
));
3124 /* Remove the help from the frame */
3125 unbind_to (count
, Qnil
);
3128 if (EQ (c
, make_number (040)))
3132 c
= read_char (0, 0, 0, Qnil
, 0);
3133 while (BUFFERP (c
));
3142 /* Record a key that came from a mouse menu.
3143 Record it for echoing, for this-command-keys, and so on. */
3149 /* Wipe the echo area. */
3150 clear_message (1, 0);
3155 before_command_key_count
= this_command_key_count
;
3156 before_command_echo_length
= echo_length ();
3159 /* Don't echo mouse motion events. */
3160 if ((FLOATP (Vecho_keystrokes
) || INTEGERP (Vecho_keystrokes
))
3161 && NILP (Fzerop (Vecho_keystrokes
)))
3165 /* Once we reread a character, echoing can happen
3166 the next time we pause to read a new one. */
3167 ok_to_echo_at_next_pause
= 0;
3170 /* Record this character as part of the current key. */
3171 add_command_key (c
);
3173 /* Re-reading in the middle of a command */
3174 last_input_char
= c
;
3178 /* Return 1 if should recognize C as "the help character". */
3186 if (EQ (c
, Vhelp_char
))
3188 for (tail
= Vhelp_event_list
; CONSP (tail
); tail
= XCDR (tail
))
3189 if (EQ (c
, XCAR (tail
)))
3194 /* Record the input event C in various ways. */
3202 if (CONSP (c
) && (EQ (XCAR (c
), Qhelp_echo
) || EQ (XCAR (c
), Qmouse_movement
)))
3204 /* To avoid filling recent_keys with help-echo and mouse-movement
3205 events, we filter out repeated help-echo events, only store the
3206 first and last in a series of mouse-movement events, and don't
3207 store repeated help-echo events which are only separated by
3208 mouse-movement events. */
3210 Lisp_Object ev1
, ev2
, ev3
;
3213 if ((ix1
= recent_keys_index
- 1) < 0)
3214 ix1
= NUM_RECENT_KEYS
- 1;
3215 ev1
= AREF (recent_keys
, ix1
);
3217 if ((ix2
= ix1
- 1) < 0)
3218 ix2
= NUM_RECENT_KEYS
- 1;
3219 ev2
= AREF (recent_keys
, ix2
);
3221 if ((ix3
= ix2
- 1) < 0)
3222 ix3
= NUM_RECENT_KEYS
- 1;
3223 ev3
= AREF (recent_keys
, ix3
);
3225 if (EQ (XCAR (c
), Qhelp_echo
))
3227 /* Don't record `help-echo' in recent_keys unless it shows some help
3228 message, and a different help than the previously recorded
3230 Lisp_Object help
, last_help
;
3232 help
= Fcar_safe (Fcdr_safe (XCDR (c
)));
3233 if (!STRINGP (help
))
3235 else if (CONSP (ev1
) && EQ (XCAR (ev1
), Qhelp_echo
)
3236 && (last_help
= Fcar_safe (Fcdr_safe (XCDR (ev1
))), EQ (last_help
, help
)))
3238 else if (CONSP (ev1
) && EQ (XCAR (ev1
), Qmouse_movement
)
3239 && CONSP (ev2
) && EQ (XCAR (ev2
), Qhelp_echo
)
3240 && (last_help
= Fcar_safe (Fcdr_safe (XCDR (ev2
))), EQ (last_help
, help
)))
3242 else if (CONSP (ev1
) && EQ (XCAR (ev1
), Qmouse_movement
)
3243 && CONSP (ev2
) && EQ (XCAR (ev2
), Qmouse_movement
)
3244 && CONSP (ev3
) && EQ (XCAR (ev3
), Qhelp_echo
)
3245 && (last_help
= Fcar_safe (Fcdr_safe (XCDR (ev3
))), EQ (last_help
, help
)))
3248 else if (EQ (XCAR (c
), Qmouse_movement
))
3250 /* Only record one pair of `mouse-movement' on a window in recent_keys.
3251 So additional mouse movement events replace the last element. */
3252 Lisp_Object last_window
, window
;
3254 window
= Fcar_safe (Fcar_safe (XCDR (c
)));
3255 if (CONSP (ev1
) && EQ (XCAR (ev1
), Qmouse_movement
)
3256 && (last_window
= Fcar_safe (Fcar_safe (XCDR (ev1
))), EQ (last_window
, window
))
3257 && CONSP (ev2
) && EQ (XCAR (ev2
), Qmouse_movement
)
3258 && (last_window
= Fcar_safe (Fcar_safe (XCDR (ev2
))), EQ (last_window
, window
)))
3260 ASET (recent_keys
, ix1
, c
);
3266 store_kbd_macro_char (c
);
3271 ASET (recent_keys
, recent_keys_index
, c
);
3272 if (++recent_keys_index
>= NUM_RECENT_KEYS
)
3273 recent_keys_index
= 0;
3275 else if (recorded
< 0)
3277 /* We need to remove one or two events from recent_keys.
3278 To do this, we simply put nil at those events and move the
3279 recent_keys_index backwards over those events. Usually,
3280 users will never see those nil events, as they will be
3281 overwritten by the command keys entered to see recent_keys
3284 while (recorded
++ < 0 && total_keys
> 0)
3286 if (total_keys
< NUM_RECENT_KEYS
)
3288 if (--recent_keys_index
< 0)
3289 recent_keys_index
= NUM_RECENT_KEYS
- 1;
3290 ASET (recent_keys
, recent_keys_index
, Qnil
);
3294 num_nonmacro_input_events
++;
3296 /* Write c to the dribble file. If c is a lispy event, write
3297 the event's symbol to the dribble file, in <brackets>. Bleaugh.
3298 If you, dear reader, have a better idea, you've got the source. :-) */
3303 if (XUINT (c
) < 0x100)
3304 putc (XINT (c
), dribble
);
3306 fprintf (dribble
, " 0x%x", (int) XUINT (c
));
3310 Lisp_Object dribblee
;
3312 /* If it's a structured event, take the event header. */
3313 dribblee
= EVENT_HEAD (c
);
3315 if (SYMBOLP (dribblee
))
3317 putc ('<', dribble
);
3318 fwrite (SDATA (SYMBOL_NAME (dribblee
)), sizeof (char),
3319 SBYTES (SYMBOL_NAME (dribblee
)),
3321 putc ('>', dribble
);
3333 struct buffer
*old
= current_buffer
;
3334 Fprinc (object
, Qnil
);
3335 set_buffer_internal (XBUFFER (Vstandard_output
));
3336 call0 (intern ("help-mode"));
3337 set_buffer_internal (old
);
3341 /* Copy out or in the info on where C-g should throw to.
3342 This is used when running Lisp code from within get_char,
3343 in case get_char is called recursively.
3344 See read_process_output. */
3350 bcopy (getcjmp
, temp
, sizeof getcjmp
);
3354 restore_getcjmp (temp
)
3357 bcopy (temp
, getcjmp
, sizeof getcjmp
);
3362 /* Restore mouse tracking enablement. See Ftrack_mouse for the only use
3363 of this function. */
3366 tracking_off (old_value
)
3367 Lisp_Object old_value
;
3369 do_mouse_tracking
= old_value
;
3370 if (NILP (old_value
))
3372 /* Redisplay may have been preempted because there was input
3373 available, and it assumes it will be called again after the
3374 input has been processed. If the only input available was
3375 the sort that we have just disabled, then we need to call
3377 if (!readable_events (1))
3379 redisplay_preserve_echo_area (6);
3380 get_input_pending (&input_pending
, 1);
3386 DEFUN ("track-mouse", Ftrack_mouse
, Strack_mouse
, 0, UNEVALLED
, 0,
3387 doc
: /* Evaluate BODY with mouse movement events enabled.
3388 Within a `track-mouse' form, mouse motion generates input events that
3389 you can read with `read-event'.
3390 Normally, mouse motion is ignored.
3391 usage: (track-mouse BODY ...) */)
3395 int count
= SPECPDL_INDEX ();
3398 record_unwind_protect (tracking_off
, do_mouse_tracking
);
3400 do_mouse_tracking
= Qt
;
3402 val
= Fprogn (args
);
3403 return unbind_to (count
, val
);
3406 /* If mouse has moved on some frame, return one of those frames.
3407 Return 0 otherwise. */
3412 Lisp_Object tail
, frame
;
3414 FOR_EACH_FRAME (tail
, frame
)
3416 if (XFRAME (frame
)->mouse_moved
)
3417 return XFRAME (frame
);
3423 #endif /* HAVE_MOUSE */
3425 /* Low level keyboard/mouse input.
3426 kbd_buffer_store_event places events in kbd_buffer, and
3427 kbd_buffer_get_event retrieves them. */
3429 /* Return true iff there are any events in the queue that read-char
3430 would return. If this returns false, a read-char would block. */
3432 readable_filtered_events (do_timers_now
, filter_events
)
3437 timer_check (do_timers_now
);
3439 /* If the buffer contains only FOCUS_IN_EVENT events,
3440 and FILTER_EVENTS is nonzero, report it as empty. */
3441 if (kbd_fetch_ptr
!= kbd_store_ptr
)
3443 int have_live_event
= 1;
3447 struct input_event
*event
;
3449 event
= ((kbd_fetch_ptr
< kbd_buffer
+ KBD_BUFFER_SIZE
)
3453 while (have_live_event
&& event
->kind
== FOCUS_IN_EVENT
)
3456 if (event
== kbd_buffer
+ KBD_BUFFER_SIZE
)
3458 if (event
== kbd_store_ptr
)
3459 have_live_event
= 0;
3462 if (have_live_event
) return 1;
3466 if (!NILP (do_mouse_tracking
) && some_mouse_moved ())
3471 if (current_kboard
->kbd_queue_has_data
)
3477 for (kb
= all_kboards
; kb
; kb
= kb
->next_kboard
)
3478 if (kb
->kbd_queue_has_data
)
3484 /* Return true iff there are any events in the queue that read-char
3485 would return. If this returns false, a read-char would block. */
3487 readable_events (do_timers_now
)
3490 return readable_filtered_events (do_timers_now
, 0);
3493 /* Set this for debugging, to have a way to get out */
3498 event_to_kboard (event
)
3499 struct input_event
*event
;
3502 frame
= event
->frame_or_window
;
3504 frame
= XCAR (frame
);
3505 else if (WINDOWP (frame
))
3506 frame
= WINDOW_FRAME (XWINDOW (frame
));
3508 /* There are still some events that don't set this field.
3509 For now, just ignore the problem.
3510 Also ignore dead frames here. */
3511 if (!FRAMEP (frame
) || !FRAME_LIVE_P (XFRAME (frame
)))
3514 return FRAME_KBOARD (XFRAME (frame
));
3518 /* Store an event obtained at interrupt level into kbd_buffer, fifo */
3521 kbd_buffer_store_event (event
)
3522 register struct input_event
*event
;
3524 kbd_buffer_store_event_hold (event
, 0);
3527 /* Store EVENT obtained at interrupt level into kbd_buffer, fifo.
3529 If HOLD_QUIT is 0, just stuff EVENT into the fifo.
3530 Else, if HOLD_QUIT.kind != NO_EVENT, discard EVENT.
3531 Else, if EVENT is a quit event, store the quit event
3532 in HOLD_QUIT, and return (thus ignoring further events).
3534 This is used in read_avail_input to postpone the processing
3535 of the quit event until all subsequent input events have been
3536 parsed (and discarded).
3540 kbd_buffer_store_event_hold (event
, hold_quit
)
3541 register struct input_event
*event
;
3542 struct input_event
*hold_quit
;
3544 if (event
->kind
== NO_EVENT
)
3547 if (hold_quit
&& hold_quit
->kind
!= NO_EVENT
)
3550 if (event
->kind
== ASCII_KEYSTROKE_EVENT
)
3552 register int c
= event
->code
& 0377;
3554 if (event
->modifiers
& ctrl_modifier
)
3555 c
= make_ctrl_char (c
);
3557 c
|= (event
->modifiers
3558 & (meta_modifier
| alt_modifier
3559 | hyper_modifier
| super_modifier
));
3565 struct input_event
*sp
;
3568 && (kb
= FRAME_KBOARD (XFRAME (event
->frame_or_window
)),
3569 kb
!= current_kboard
))
3572 = Fcons (make_lispy_switch_frame (event
->frame_or_window
),
3573 Fcons (make_number (c
), Qnil
));
3574 kb
->kbd_queue_has_data
= 1;
3575 for (sp
= kbd_fetch_ptr
; sp
!= kbd_store_ptr
; sp
++)
3577 if (sp
== kbd_buffer
+ KBD_BUFFER_SIZE
)
3580 if (event_to_kboard (sp
) == kb
)
3582 sp
->kind
= NO_EVENT
;
3583 sp
->frame_or_window
= Qnil
;
3593 bcopy (event
, (char *) hold_quit
, sizeof (*event
));
3597 /* If this results in a quit_char being returned to Emacs as
3598 input, set Vlast_event_frame properly. If this doesn't
3599 get returned to Emacs as an event, the next event read
3600 will set Vlast_event_frame again, so this is safe to do. */
3604 focus
= FRAME_FOCUS_FRAME (XFRAME (event
->frame_or_window
));
3606 focus
= event
->frame_or_window
;
3607 internal_last_event_frame
= focus
;
3608 Vlast_event_frame
= focus
;
3611 last_event_timestamp
= event
->timestamp
;
3612 handle_interrupt ();
3616 if (c
&& c
== stop_character
)
3622 /* Don't insert two BUFFER_SWITCH_EVENT's in a row.
3623 Just ignore the second one. */
3624 else if (event
->kind
== BUFFER_SWITCH_EVENT
3625 && kbd_fetch_ptr
!= kbd_store_ptr
3626 && ((kbd_store_ptr
== kbd_buffer
3627 ? kbd_buffer
+ KBD_BUFFER_SIZE
- 1
3628 : kbd_store_ptr
- 1)->kind
) == BUFFER_SWITCH_EVENT
)
3631 if (kbd_store_ptr
- kbd_buffer
== KBD_BUFFER_SIZE
)
3632 kbd_store_ptr
= kbd_buffer
;
3634 /* Don't let the very last slot in the buffer become full,
3635 since that would make the two pointers equal,
3636 and that is indistinguishable from an empty buffer.
3637 Discard the event if it would fill the last slot. */
3638 if (kbd_fetch_ptr
- 1 != kbd_store_ptr
)
3641 #if 0 /* The SELECTION_REQUEST_EVENT case looks bogus, and it's error
3642 prone to assign individual members for other events, in case
3643 the input_event structure is changed. --2000-07-13, gerd. */
3644 struct input_event
*sp
= kbd_store_ptr
;
3645 sp
->kind
= event
->kind
;
3646 if (event
->kind
== SELECTION_REQUEST_EVENT
)
3648 /* We must not use the ordinary copying code for this case,
3649 since `part' is an enum and copying it might not copy enough
3651 bcopy (event
, (char *) sp
, sizeof (*event
));
3656 sp
->code
= event
->code
;
3657 sp
->part
= event
->part
;
3658 sp
->frame_or_window
= event
->frame_or_window
;
3659 sp
->arg
= event
->arg
;
3660 sp
->modifiers
= event
->modifiers
;
3663 sp
->timestamp
= event
->timestamp
;
3666 *kbd_store_ptr
= *event
;
3674 /* Generate HELP_EVENT input_events in BUFP which has room for
3675 SIZE events. If there's not enough room in BUFP, ignore this
3678 HELP is the help form.
3680 FRAME is the frame on which the help is generated. OBJECT is the
3681 Lisp object where the help was found (a buffer, a string, an
3682 overlay, or nil if neither from a string nor from a buffer. POS is
3683 the position within OBJECT where the help was found.
3685 Value is the number of input_events generated. */
3688 gen_help_event (help
, frame
, window
, object
, pos
)
3689 Lisp_Object help
, frame
, object
, window
;
3692 struct input_event event
;
3696 event
.kind
= HELP_EVENT
;
3697 event
.frame_or_window
= frame
;
3699 event
.x
= WINDOWP (window
) ? window
: frame
;
3702 kbd_buffer_store_event (&event
);
3706 /* Store HELP_EVENTs for HELP on FRAME in the input queue. */
3709 kbd_buffer_store_help_event (frame
, help
)
3710 Lisp_Object frame
, help
;
3712 struct input_event event
;
3714 event
.kind
= HELP_EVENT
;
3715 event
.frame_or_window
= frame
;
3720 kbd_buffer_store_event (&event
);
3724 /* Discard any mouse events in the event buffer by setting them to
3727 discard_mouse_events ()
3729 struct input_event
*sp
;
3730 for (sp
= kbd_fetch_ptr
; sp
!= kbd_store_ptr
; sp
++)
3732 if (sp
== kbd_buffer
+ KBD_BUFFER_SIZE
)
3735 if (sp
->kind
== MOUSE_CLICK_EVENT
3736 || sp
->kind
== WHEEL_EVENT
3738 || sp
->kind
== W32_SCROLL_BAR_CLICK_EVENT
3740 || sp
->kind
== SCROLL_BAR_CLICK_EVENT
)
3742 sp
->kind
= NO_EVENT
;
3748 /* Return non-zero if there are any real events waiting in the event
3749 buffer, not counting `NO_EVENT's.
3751 If DISCARD is non-zero, discard NO_EVENT events at the front of
3752 the input queue, possibly leaving the input queue empty if there
3753 are no real input events. */
3756 kbd_buffer_events_waiting (discard
)
3759 struct input_event
*sp
;
3761 for (sp
= kbd_fetch_ptr
;
3762 sp
!= kbd_store_ptr
&& sp
->kind
== NO_EVENT
;
3765 if (sp
== kbd_buffer
+ KBD_BUFFER_SIZE
)
3772 return sp
!= kbd_store_ptr
&& sp
->kind
!= NO_EVENT
;
3776 /* Clear input event EVENT. */
3780 struct input_event
*event
;
3782 event
->kind
= NO_EVENT
;
3786 /* Read one event from the event buffer, waiting if necessary.
3787 The value is a Lisp object representing the event.
3788 The value is nil for an event that should be ignored,
3789 or that was handled here.
3790 We always read and discard one event. */
3793 kbd_buffer_get_event (kbp
, used_mouse_menu
)
3795 int *used_mouse_menu
;
3804 *kbp
= current_kboard
;
3808 /* Wait until there is input available. */
3811 if (kbd_fetch_ptr
!= kbd_store_ptr
)
3814 if (!NILP (do_mouse_tracking
) && some_mouse_moved ())
3818 /* If the quit flag is set, then read_char will return
3819 quit_char, so that counts as "available input." */
3820 if (!NILP (Vquit_flag
))
3821 quit_throw_to_read_char ();
3823 /* One way or another, wait until input is available; then, if
3824 interrupt handlers have not read it, read it now. */
3827 wait_for_kbd_input ();
3829 /* Note SIGIO has been undef'd if FIONREAD is missing. */
3833 if (kbd_fetch_ptr
!= kbd_store_ptr
)
3836 if (!NILP (do_mouse_tracking
) && some_mouse_moved ())
3840 Lisp_Object minus_one
;
3842 XSETINT (minus_one
, -1);
3843 wait_reading_process_input (0, 0, minus_one
, 1);
3845 if (!interrupt_input
&& kbd_fetch_ptr
== kbd_store_ptr
)
3846 /* Pass 1 for EXPECT since we just waited to have input. */
3847 read_avail_input (1);
3849 #endif /* not VMS */
3852 if (CONSP (Vunread_command_events
))
3855 first
= XCAR (Vunread_command_events
);
3856 Vunread_command_events
= XCDR (Vunread_command_events
);
3857 *kbp
= current_kboard
;
3861 /* At this point, we know that there is a readable event available
3862 somewhere. If the event queue is empty, then there must be a
3863 mouse movement enabled and available. */
3864 if (kbd_fetch_ptr
!= kbd_store_ptr
)
3866 struct input_event
*event
;
3868 event
= ((kbd_fetch_ptr
< kbd_buffer
+ KBD_BUFFER_SIZE
)
3872 last_event_timestamp
= event
->timestamp
;
3875 *kbp
= event_to_kboard (event
);
3877 *kbp
= current_kboard
; /* Better than returning null ptr? */
3879 *kbp
= &the_only_kboard
;
3884 /* These two kinds of events get special handling
3885 and don't actually appear to the command loop.
3886 We return nil for them. */
3887 if (event
->kind
== SELECTION_REQUEST_EVENT
)
3890 struct input_event copy
;
3892 /* Remove it from the buffer before processing it,
3893 since otherwise swallow_events will see it
3894 and process it again. */
3896 kbd_fetch_ptr
= event
+ 1;
3897 input_pending
= readable_events (0);
3898 x_handle_selection_request (©
);
3900 /* We're getting selection request events, but we don't have
3906 else if (event
->kind
== SELECTION_CLEAR_EVENT
)
3909 struct input_event copy
;
3911 /* Remove it from the buffer before processing it. */
3913 kbd_fetch_ptr
= event
+ 1;
3914 input_pending
= readable_events (0);
3915 x_handle_selection_clear (©
);
3917 /* We're getting selection request events, but we don't have
3922 #if defined (HAVE_X11) || defined (HAVE_NTGUI) || defined (MAC_OS)
3923 else if (event
->kind
== DELETE_WINDOW_EVENT
)
3925 /* Make an event (delete-frame (FRAME)). */
3926 obj
= Fcons (event
->frame_or_window
, Qnil
);
3927 obj
= Fcons (Qdelete_frame
, Fcons (obj
, Qnil
));
3928 kbd_fetch_ptr
= event
+ 1;
3931 #if defined (HAVE_X11) || defined (HAVE_NTGUI)
3932 else if (event
->kind
== ICONIFY_EVENT
)
3934 /* Make an event (iconify-frame (FRAME)). */
3935 obj
= Fcons (event
->frame_or_window
, Qnil
);
3936 obj
= Fcons (Qiconify_frame
, Fcons (obj
, Qnil
));
3937 kbd_fetch_ptr
= event
+ 1;
3939 else if (event
->kind
== DEICONIFY_EVENT
)
3941 /* Make an event (make-frame-visible (FRAME)). */
3942 obj
= Fcons (event
->frame_or_window
, Qnil
);
3943 obj
= Fcons (Qmake_frame_visible
, Fcons (obj
, Qnil
));
3944 kbd_fetch_ptr
= event
+ 1;
3947 else if (event
->kind
== BUFFER_SWITCH_EVENT
)
3949 /* The value doesn't matter here; only the type is tested. */
3950 XSETBUFFER (obj
, current_buffer
);
3951 kbd_fetch_ptr
= event
+ 1;
3953 #if defined (USE_X_TOOLKIT) || defined (HAVE_NTGUI) || defined (MAC_OS) \
3954 || defined (USE_GTK)
3955 else if (event
->kind
== MENU_BAR_ACTIVATE_EVENT
)
3957 kbd_fetch_ptr
= event
+ 1;
3958 input_pending
= readable_events (0);
3959 if (FRAME_LIVE_P (XFRAME (event
->frame_or_window
)))
3960 x_activate_menubar (XFRAME (event
->frame_or_window
));
3964 else if (event
->kind
== LANGUAGE_CHANGE_EVENT
)
3966 /* Make an event (language-change (FRAME CHARSET LCID)). */
3967 obj
= Fcons (event
->modifiers
, Qnil
);
3968 obj
= Fcons (event
->code
, obj
);
3969 obj
= Fcons (event
->frame_or_window
, obj
);
3970 obj
= Fcons (Qlanguage_change
, Fcons (obj
, Qnil
));
3971 kbd_fetch_ptr
= event
+ 1;
3974 else if (event
->kind
== SAVE_SESSION_EVENT
)
3976 obj
= Fcons (Qsave_session
, Qnil
);
3977 kbd_fetch_ptr
= event
+ 1;
3979 /* Just discard these, by returning nil.
3980 With MULTI_KBOARD, these events are used as placeholders
3981 when we need to randomly delete events from the queue.
3982 (They shouldn't otherwise be found in the buffer,
3983 but on some machines it appears they do show up
3984 even without MULTI_KBOARD.) */
3985 /* On Windows NT/9X, NO_EVENT is used to delete extraneous
3986 mouse events during a popup-menu call. */
3987 else if (event
->kind
== NO_EVENT
)
3988 kbd_fetch_ptr
= event
+ 1;
3989 else if (event
->kind
== HELP_EVENT
)
3991 Lisp_Object object
, position
, help
, frame
, window
;
3993 frame
= event
->frame_or_window
;
3994 object
= event
->arg
;
3995 position
= make_number (event
->code
);
3998 clear_event (event
);
4000 kbd_fetch_ptr
= event
+ 1;
4001 if (!WINDOWP (window
))
4003 obj
= Fcons (Qhelp_echo
,
4004 list5 (frame
, help
, window
, object
, position
));
4006 else if (event
->kind
== FOCUS_IN_EVENT
)
4008 /* Notification of a FocusIn event. The frame receiving the
4009 focus is in event->frame_or_window. Generate a
4010 switch-frame event if necessary. */
4011 Lisp_Object frame
, focus
;
4013 frame
= event
->frame_or_window
;
4014 focus
= FRAME_FOCUS_FRAME (XFRAME (frame
));
4018 if (!EQ (frame
, internal_last_event_frame
)
4019 && !EQ (frame
, selected_frame
))
4020 obj
= make_lispy_switch_frame (frame
);
4021 internal_last_event_frame
= frame
;
4022 kbd_fetch_ptr
= event
+ 1;
4026 /* If this event is on a different frame, return a switch-frame this
4027 time, and leave the event in the queue for next time. */
4031 frame
= event
->frame_or_window
;
4033 frame
= XCAR (frame
);
4034 else if (WINDOWP (frame
))
4035 frame
= WINDOW_FRAME (XWINDOW (frame
));
4037 focus
= FRAME_FOCUS_FRAME (XFRAME (frame
));
4041 if (! EQ (frame
, internal_last_event_frame
)
4042 && !EQ (frame
, selected_frame
))
4043 obj
= make_lispy_switch_frame (frame
);
4044 internal_last_event_frame
= frame
;
4046 /* If we didn't decide to make a switch-frame event, go ahead
4047 and build a real event from the queue entry. */
4051 obj
= make_lispy_event (event
);
4053 #if defined (USE_X_TOOLKIT) || defined (HAVE_NTGUI) || defined(MAC_OS) \
4054 || defined (USE_GTK)
4055 /* If this was a menu selection, then set the flag to inhibit
4056 writing to last_nonmenu_event. Don't do this if the event
4057 we're returning is (menu-bar), though; that indicates the
4058 beginning of the menu sequence, and we might as well leave
4059 that as the `event with parameters' for this selection. */
4061 && !EQ (event
->frame_or_window
, event
->arg
)
4062 && (event
->kind
== MENU_BAR_EVENT
4063 || event
->kind
== TOOL_BAR_EVENT
))
4064 *used_mouse_menu
= 1;
4067 /* Wipe out this event, to catch bugs. */
4068 clear_event (event
);
4069 kbd_fetch_ptr
= event
+ 1;
4074 /* Try generating a mouse motion event. */
4075 else if (!NILP (do_mouse_tracking
) && some_mouse_moved ())
4077 FRAME_PTR f
= some_mouse_moved ();
4078 Lisp_Object bar_window
;
4079 enum scroll_bar_part part
;
4083 *kbp
= current_kboard
;
4084 /* Note that this uses F to determine which display to look at.
4085 If there is no valid info, it does not store anything
4086 so x remains nil. */
4089 /* XXX Can f or mouse_position_hook be NULL here? */
4090 if (f
&& FRAME_DISPLAY (f
)->mouse_position_hook
)
4091 (*FRAME_DISPLAY (f
)->mouse_position_hook
) (&f
, 0, &bar_window
,
4092 &part
, &x
, &y
, &time
);
4096 /* Decide if we should generate a switch-frame event. Don't
4097 generate switch-frame events for motion outside of all Emacs
4103 frame
= FRAME_FOCUS_FRAME (f
);
4105 XSETFRAME (frame
, f
);
4107 if (! EQ (frame
, internal_last_event_frame
)
4108 && !EQ (frame
, selected_frame
))
4109 obj
= make_lispy_switch_frame (frame
);
4110 internal_last_event_frame
= frame
;
4113 /* If we didn't decide to make a switch-frame event, go ahead and
4114 return a mouse-motion event. */
4115 if (!NILP (x
) && NILP (obj
))
4116 obj
= make_lispy_movement (f
, bar_window
, part
, x
, y
, time
);
4118 #endif /* HAVE_MOUSE */
4120 /* We were promised by the above while loop that there was
4121 something for us to read! */
4124 input_pending
= readable_events (0);
4126 Vlast_event_frame
= internal_last_event_frame
;
4131 /* Process any events that are not user-visible,
4132 then return, without reading any user-visible events. */
4135 swallow_events (do_display
)
4140 while (kbd_fetch_ptr
!= kbd_store_ptr
)
4142 struct input_event
*event
;
4144 event
= ((kbd_fetch_ptr
< kbd_buffer
+ KBD_BUFFER_SIZE
)
4148 last_event_timestamp
= event
->timestamp
;
4150 /* These two kinds of events get special handling
4151 and don't actually appear to the command loop. */
4152 if (event
->kind
== SELECTION_REQUEST_EVENT
)
4155 struct input_event copy
;
4157 /* Remove it from the buffer before processing it,
4158 since otherwise swallow_events called recursively could see it
4159 and process it again. */
4161 kbd_fetch_ptr
= event
+ 1;
4162 input_pending
= readable_events (0);
4163 x_handle_selection_request (©
);
4165 /* We're getting selection request events, but we don't have
4171 else if (event
->kind
== SELECTION_CLEAR_EVENT
)
4174 struct input_event copy
;
4176 /* Remove it from the buffer before processing it, */
4179 kbd_fetch_ptr
= event
+ 1;
4180 input_pending
= readable_events (0);
4181 x_handle_selection_clear (©
);
4183 /* We're getting selection request events, but we don't have
4192 old_timers_run
= timers_run
;
4193 get_input_pending (&input_pending
, 1);
4195 if (timers_run
!= old_timers_run
&& do_display
)
4196 redisplay_preserve_echo_area (7);
4199 /* Record the start of when Emacs is idle,
4200 for the sake of running idle-time timers. */
4207 /* If we are already in the idle state, do nothing. */
4208 if (! EMACS_TIME_NEG_P (timer_idleness_start_time
))
4211 EMACS_GET_TIME (timer_idleness_start_time
);
4213 timer_last_idleness_start_time
= timer_idleness_start_time
;
4215 /* Mark all idle-time timers as once again candidates for running. */
4216 for (timers
= Vtimer_idle_list
; CONSP (timers
); timers
= XCDR (timers
))
4220 timer
= XCAR (timers
);
4222 if (!VECTORP (timer
) || XVECTOR (timer
)->size
!= 8)
4224 XVECTOR (timer
)->contents
[0] = Qnil
;
4228 /* Record that Emacs is no longer idle, so stop running idle-time timers. */
4233 EMACS_SET_SECS_USECS (timer_idleness_start_time
, -1, -1);
4236 /* This is only for debugging. */
4237 struct input_event last_timer_event
;
4239 /* Check whether a timer has fired. To prevent larger problems we simply
4240 disregard elements that are not proper timers. Do not make a circular
4241 timer list for the time being.
4243 Returns the number of seconds to wait until the next timer fires. If a
4244 timer is triggering now, return zero seconds.
4245 If no timer is active, return -1 seconds.
4247 If a timer is ripe, we run it, with quitting turned off.
4249 DO_IT_NOW is now ignored. It used to mean that we should
4250 run the timer directly instead of queueing a timer-event.
4251 Now we always run timers directly. */
4254 timer_check (do_it_now
)
4257 EMACS_TIME nexttime
;
4258 EMACS_TIME now
, idleness_now
;
4259 Lisp_Object timers
, idle_timers
, chosen_timer
;
4260 struct gcpro gcpro1
, gcpro2
, gcpro3
;
4262 EMACS_SET_SECS (nexttime
, -1);
4263 EMACS_SET_USECS (nexttime
, -1);
4265 /* Always consider the ordinary timers. */
4266 timers
= Vtimer_list
;
4267 /* Consider the idle timers only if Emacs is idle. */
4268 if (! EMACS_TIME_NEG_P (timer_idleness_start_time
))
4269 idle_timers
= Vtimer_idle_list
;
4272 chosen_timer
= Qnil
;
4273 GCPRO3 (timers
, idle_timers
, chosen_timer
);
4275 if (CONSP (timers
) || CONSP (idle_timers
))
4277 EMACS_GET_TIME (now
);
4278 if (! EMACS_TIME_NEG_P (timer_idleness_start_time
))
4279 EMACS_SUB_TIME (idleness_now
, now
, timer_idleness_start_time
);
4282 while (CONSP (timers
) || CONSP (idle_timers
))
4284 Lisp_Object
*vector
;
4285 Lisp_Object timer
= Qnil
, idle_timer
= Qnil
;
4286 EMACS_TIME timer_time
, idle_timer_time
;
4287 EMACS_TIME difference
, timer_difference
, idle_timer_difference
;
4289 /* Skip past invalid timers and timers already handled. */
4292 timer
= XCAR (timers
);
4293 if (!VECTORP (timer
) || XVECTOR (timer
)->size
!= 8)
4295 timers
= XCDR (timers
);
4298 vector
= XVECTOR (timer
)->contents
;
4300 if (!INTEGERP (vector
[1]) || !INTEGERP (vector
[2])
4301 || !INTEGERP (vector
[3])
4302 || ! NILP (vector
[0]))
4304 timers
= XCDR (timers
);
4308 if (!NILP (idle_timers
))
4310 timer
= XCAR (idle_timers
);
4311 if (!VECTORP (timer
) || XVECTOR (timer
)->size
!= 8)
4313 idle_timers
= XCDR (idle_timers
);
4316 vector
= XVECTOR (timer
)->contents
;
4318 if (!INTEGERP (vector
[1]) || !INTEGERP (vector
[2])
4319 || !INTEGERP (vector
[3])
4320 || ! NILP (vector
[0]))
4322 idle_timers
= XCDR (idle_timers
);
4327 /* Set TIMER, TIMER_TIME and TIMER_DIFFERENCE
4328 based on the next ordinary timer.
4329 TIMER_DIFFERENCE is the distance in time from NOW to when
4330 this timer becomes ripe (negative if it's already ripe). */
4333 timer
= XCAR (timers
);
4334 vector
= XVECTOR (timer
)->contents
;
4335 EMACS_SET_SECS (timer_time
,
4336 (XINT (vector
[1]) << 16) | (XINT (vector
[2])));
4337 EMACS_SET_USECS (timer_time
, XINT (vector
[3]));
4338 EMACS_SUB_TIME (timer_difference
, timer_time
, now
);
4341 /* Set IDLE_TIMER, IDLE_TIMER_TIME and IDLE_TIMER_DIFFERENCE
4342 based on the next idle timer. */
4343 if (!NILP (idle_timers
))
4345 idle_timer
= XCAR (idle_timers
);
4346 vector
= XVECTOR (idle_timer
)->contents
;
4347 EMACS_SET_SECS (idle_timer_time
,
4348 (XINT (vector
[1]) << 16) | (XINT (vector
[2])));
4349 EMACS_SET_USECS (idle_timer_time
, XINT (vector
[3]));
4350 EMACS_SUB_TIME (idle_timer_difference
, idle_timer_time
, idleness_now
);
4353 /* Decide which timer is the next timer,
4354 and set CHOSEN_TIMER, VECTOR and DIFFERENCE accordingly.
4355 Also step down the list where we found that timer. */
4357 if (! NILP (timers
) && ! NILP (idle_timers
))
4360 EMACS_SUB_TIME (temp
, timer_difference
, idle_timer_difference
);
4361 if (EMACS_TIME_NEG_P (temp
))
4363 chosen_timer
= timer
;
4364 timers
= XCDR (timers
);
4365 difference
= timer_difference
;
4369 chosen_timer
= idle_timer
;
4370 idle_timers
= XCDR (idle_timers
);
4371 difference
= idle_timer_difference
;
4374 else if (! NILP (timers
))
4376 chosen_timer
= timer
;
4377 timers
= XCDR (timers
);
4378 difference
= timer_difference
;
4382 chosen_timer
= idle_timer
;
4383 idle_timers
= XCDR (idle_timers
);
4384 difference
= idle_timer_difference
;
4386 vector
= XVECTOR (chosen_timer
)->contents
;
4388 /* If timer is ripe, run it if it hasn't been run. */
4389 if (EMACS_TIME_NEG_P (difference
)
4390 || (EMACS_SECS (difference
) == 0
4391 && EMACS_USECS (difference
) == 0))
4393 if (NILP (vector
[0]))
4395 int was_locked
= single_kboard
;
4396 int count
= SPECPDL_INDEX ();
4397 Lisp_Object old_deactivate_mark
= Vdeactivate_mark
;
4399 /* Mark the timer as triggered to prevent problems if the lisp
4400 code fails to reschedule it right. */
4403 specbind (Qinhibit_quit
, Qt
);
4405 call1 (Qtimer_event_handler
, chosen_timer
);
4406 Vdeactivate_mark
= old_deactivate_mark
;
4408 unbind_to (count
, Qnil
);
4410 /* Resume allowing input from any kboard, if that was true before. */
4412 any_kboard_state ();
4414 /* Since we have handled the event,
4415 we don't need to tell the caller to wake up and do it. */
4419 /* When we encounter a timer that is still waiting,
4420 return the amount of time to wait before it is ripe. */
4427 /* No timers are pending in the future. */
4428 /* Return 0 if we generated an event, and -1 if not. */
4433 /* Caches for modify_event_symbol. */
4434 static Lisp_Object accent_key_syms
;
4435 static Lisp_Object func_key_syms
;
4436 static Lisp_Object mouse_syms
;
4437 static Lisp_Object wheel_syms
;
4438 static Lisp_Object drag_n_drop_syms
;
4440 /* This is a list of keysym codes for special "accent" characters.
4441 It parallels lispy_accent_keys. */
4443 static int lispy_accent_codes
[] =
4445 #ifdef XK_dead_circumflex
4450 #ifdef XK_dead_grave
4455 #ifdef XK_dead_tilde
4460 #ifdef XK_dead_diaeresis
4465 #ifdef XK_dead_macron
4470 #ifdef XK_dead_degree
4475 #ifdef XK_dead_acute
4480 #ifdef XK_dead_cedilla
4485 #ifdef XK_dead_breve
4490 #ifdef XK_dead_ogonek
4495 #ifdef XK_dead_caron
4500 #ifdef XK_dead_doubleacute
4501 XK_dead_doubleacute
,
4505 #ifdef XK_dead_abovedot
4510 #ifdef XK_dead_abovering
4520 #ifdef XK_dead_belowdot
4525 #ifdef XK_dead_voiced_sound
4526 XK_dead_voiced_sound
,
4530 #ifdef XK_dead_semivoiced_sound
4531 XK_dead_semivoiced_sound
,
4547 /* This is a list of Lisp names for special "accent" characters.
4548 It parallels lispy_accent_codes. */
4550 static char *lispy_accent_keys
[] =
4568 "dead-voiced-sound",
4569 "dead-semivoiced-sound",
4575 #define FUNCTION_KEY_OFFSET 0x0
4577 char *lispy_function_keys
[] =
4581 0, /* VK_LBUTTON 0x01 */
4582 0, /* VK_RBUTTON 0x02 */
4583 "cancel", /* VK_CANCEL 0x03 */
4584 0, /* VK_MBUTTON 0x04 */
4586 0, 0, 0, /* 0x05 .. 0x07 */
4588 "backspace", /* VK_BACK 0x08 */
4589 "tab", /* VK_TAB 0x09 */
4591 0, 0, /* 0x0A .. 0x0B */
4593 "clear", /* VK_CLEAR 0x0C */
4594 "return", /* VK_RETURN 0x0D */
4596 0, 0, /* 0x0E .. 0x0F */
4598 0, /* VK_SHIFT 0x10 */
4599 0, /* VK_CONTROL 0x11 */
4600 0, /* VK_MENU 0x12 */
4601 "pause", /* VK_PAUSE 0x13 */
4602 "capslock", /* VK_CAPITAL 0x14 */
4604 0, 0, 0, 0, 0, 0, /* 0x15 .. 0x1A */
4606 "escape", /* VK_ESCAPE 0x1B */
4608 0, 0, 0, 0, /* 0x1C .. 0x1F */
4610 0, /* VK_SPACE 0x20 */
4611 "prior", /* VK_PRIOR 0x21 */
4612 "next", /* VK_NEXT 0x22 */
4613 "end", /* VK_END 0x23 */
4614 "home", /* VK_HOME 0x24 */
4615 "left", /* VK_LEFT 0x25 */
4616 "up", /* VK_UP 0x26 */
4617 "right", /* VK_RIGHT 0x27 */
4618 "down", /* VK_DOWN 0x28 */
4619 "select", /* VK_SELECT 0x29 */
4620 "print", /* VK_PRINT 0x2A */
4621 "execute", /* VK_EXECUTE 0x2B */
4622 "snapshot", /* VK_SNAPSHOT 0x2C */
4623 "insert", /* VK_INSERT 0x2D */
4624 "delete", /* VK_DELETE 0x2E */
4625 "help", /* VK_HELP 0x2F */
4627 /* VK_0 thru VK_9 are the same as ASCII '0' thru '9' (0x30 - 0x39) */
4629 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
4631 0, 0, 0, 0, 0, 0, 0, /* 0x3A .. 0x40 */
4633 /* VK_A thru VK_Z are the same as ASCII 'A' thru 'Z' (0x41 - 0x5A) */
4635 0, 0, 0, 0, 0, 0, 0, 0, 0,
4636 0, 0, 0, 0, 0, 0, 0, 0, 0,
4637 0, 0, 0, 0, 0, 0, 0, 0,
4639 "lwindow", /* VK_LWIN 0x5B */
4640 "rwindow", /* VK_RWIN 0x5C */
4641 "apps", /* VK_APPS 0x5D */
4643 0, 0, /* 0x5E .. 0x5F */
4645 "kp-0", /* VK_NUMPAD0 0x60 */
4646 "kp-1", /* VK_NUMPAD1 0x61 */
4647 "kp-2", /* VK_NUMPAD2 0x62 */
4648 "kp-3", /* VK_NUMPAD3 0x63 */
4649 "kp-4", /* VK_NUMPAD4 0x64 */
4650 "kp-5", /* VK_NUMPAD5 0x65 */
4651 "kp-6", /* VK_NUMPAD6 0x66 */
4652 "kp-7", /* VK_NUMPAD7 0x67 */
4653 "kp-8", /* VK_NUMPAD8 0x68 */
4654 "kp-9", /* VK_NUMPAD9 0x69 */
4655 "kp-multiply", /* VK_MULTIPLY 0x6A */
4656 "kp-add", /* VK_ADD 0x6B */
4657 "kp-separator", /* VK_SEPARATOR 0x6C */
4658 "kp-subtract", /* VK_SUBTRACT 0x6D */
4659 "kp-decimal", /* VK_DECIMAL 0x6E */
4660 "kp-divide", /* VK_DIVIDE 0x6F */
4661 "f1", /* VK_F1 0x70 */
4662 "f2", /* VK_F2 0x71 */
4663 "f3", /* VK_F3 0x72 */
4664 "f4", /* VK_F4 0x73 */
4665 "f5", /* VK_F5 0x74 */
4666 "f6", /* VK_F6 0x75 */
4667 "f7", /* VK_F7 0x76 */
4668 "f8", /* VK_F8 0x77 */
4669 "f9", /* VK_F9 0x78 */
4670 "f10", /* VK_F10 0x79 */
4671 "f11", /* VK_F11 0x7A */
4672 "f12", /* VK_F12 0x7B */
4673 "f13", /* VK_F13 0x7C */
4674 "f14", /* VK_F14 0x7D */
4675 "f15", /* VK_F15 0x7E */
4676 "f16", /* VK_F16 0x7F */
4677 "f17", /* VK_F17 0x80 */
4678 "f18", /* VK_F18 0x81 */
4679 "f19", /* VK_F19 0x82 */
4680 "f20", /* VK_F20 0x83 */
4681 "f21", /* VK_F21 0x84 */
4682 "f22", /* VK_F22 0x85 */
4683 "f23", /* VK_F23 0x86 */
4684 "f24", /* VK_F24 0x87 */
4686 0, 0, 0, 0, /* 0x88 .. 0x8B */
4687 0, 0, 0, 0, /* 0x8C .. 0x8F */
4689 "kp-numlock", /* VK_NUMLOCK 0x90 */
4690 "scroll", /* VK_SCROLL 0x91 */
4692 "kp-space", /* VK_NUMPAD_CLEAR 0x92 */
4693 "kp-enter", /* VK_NUMPAD_ENTER 0x93 */
4694 "kp-prior", /* VK_NUMPAD_PRIOR 0x94 */
4695 "kp-next", /* VK_NUMPAD_NEXT 0x95 */
4696 "kp-end", /* VK_NUMPAD_END 0x96 */
4697 "kp-home", /* VK_NUMPAD_HOME 0x97 */
4698 "kp-left", /* VK_NUMPAD_LEFT 0x98 */
4699 "kp-up", /* VK_NUMPAD_UP 0x99 */
4700 "kp-right", /* VK_NUMPAD_RIGHT 0x9A */
4701 "kp-down", /* VK_NUMPAD_DOWN 0x9B */
4702 "kp-insert", /* VK_NUMPAD_INSERT 0x9C */
4703 "kp-delete", /* VK_NUMPAD_DELETE 0x9D */
4705 0, 0, /* 0x9E .. 0x9F */
4708 * VK_L* & VK_R* - left and right Alt, Ctrl and Shift virtual keys.
4709 * Used only as parameters to GetAsyncKeyState and GetKeyState.
4710 * No other API or message will distinguish left and right keys this way.
4714 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
4715 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
4716 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
4717 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
4718 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
4724 "attn", /* VK_ATTN 0xF6 */
4725 "crsel", /* VK_CRSEL 0xF7 */
4726 "exsel", /* VK_EXSEL 0xF8 */
4727 "ereof", /* VK_EREOF 0xF9 */
4728 "play", /* VK_PLAY 0xFA */
4729 "zoom", /* VK_ZOOM 0xFB */
4730 "noname", /* VK_NONAME 0xFC */
4731 "pa1", /* VK_PA1 0xFD */
4732 "oem_clear", /* VK_OEM_CLEAR 0xFE */
4736 #else /* not HAVE_NTGUI */
4738 /* This should be dealt with in XTread_socket now, and that doesn't
4739 depend on the client system having the Kana syms defined. See also
4740 the XK_kana_A case below. */
4743 static char *lispy_kana_keys
[] =
4745 /* X Keysym value */
4746 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x400 .. 0x40f */
4747 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x410 .. 0x41f */
4748 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x420 .. 0x42f */
4749 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x430 .. 0x43f */
4750 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x440 .. 0x44f */
4751 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x450 .. 0x45f */
4752 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x460 .. 0x46f */
4753 0,0,0,0,0,0,0,0,0,0,0,0,0,0,"overline",0,
4754 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x480 .. 0x48f */
4755 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x490 .. 0x49f */
4756 0, "kana-fullstop", "kana-openingbracket", "kana-closingbracket",
4757 "kana-comma", "kana-conjunctive", "kana-WO", "kana-a",
4758 "kana-i", "kana-u", "kana-e", "kana-o",
4759 "kana-ya", "kana-yu", "kana-yo", "kana-tsu",
4760 "prolongedsound", "kana-A", "kana-I", "kana-U",
4761 "kana-E", "kana-O", "kana-KA", "kana-KI",
4762 "kana-KU", "kana-KE", "kana-KO", "kana-SA",
4763 "kana-SHI", "kana-SU", "kana-SE", "kana-SO",
4764 "kana-TA", "kana-CHI", "kana-TSU", "kana-TE",
4765 "kana-TO", "kana-NA", "kana-NI", "kana-NU",
4766 "kana-NE", "kana-NO", "kana-HA", "kana-HI",
4767 "kana-FU", "kana-HE", "kana-HO", "kana-MA",
4768 "kana-MI", "kana-MU", "kana-ME", "kana-MO",
4769 "kana-YA", "kana-YU", "kana-YO", "kana-RA",
4770 "kana-RI", "kana-RU", "kana-RE", "kana-RO",
4771 "kana-WA", "kana-N", "voicedsound", "semivoicedsound",
4772 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x4e0 .. 0x4ef */
4773 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x4f0 .. 0x4ff */
4775 #endif /* XK_kana_A */
4778 #define FUNCTION_KEY_OFFSET 0xff00
4780 /* You'll notice that this table is arranged to be conveniently
4781 indexed by X Windows keysym values. */
4782 static char *lispy_function_keys
[] =
4784 /* X Keysym value */
4786 0, 0, 0, 0, 0, 0, 0, 0, /* 0xff00...0f */
4787 "backspace", "tab", "linefeed", "clear",
4789 0, 0, 0, "pause", /* 0xff10...1f */
4790 0, 0, 0, 0, 0, 0, 0, "escape",
4792 0, "kanji", "muhenkan", "henkan", /* 0xff20...2f */
4793 "romaji", "hiragana", "katakana", "hiragana-katakana",
4794 "zenkaku", "hankaku", "zenkaku-hankaku", "touroku",
4795 "massyo", "kana-lock", "kana-shift", "eisu-shift",
4796 "eisu-toggle", /* 0xff30...3f */
4797 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
4798 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* 0xff40...4f */
4800 "home", "left", "up", "right", /* 0xff50 */ /* IsCursorKey */
4801 "down", "prior", "next", "end",
4802 "begin", 0, 0, 0, 0, 0, 0, 0,
4803 "select", /* 0xff60 */ /* IsMiscFunctionKey */
4814 "break", /* 0xff6b */
4817 0, 0, 0, 0, "backtab", 0, 0, 0, /* 0xff70... */
4818 0, 0, 0, 0, 0, 0, 0, "kp-numlock", /* 0xff78... */
4819 "kp-space", /* 0xff80 */ /* IsKeypadKey */
4820 0, 0, 0, 0, 0, 0, 0, 0,
4821 "kp-tab", /* 0xff89 */
4823 "kp-enter", /* 0xff8d */
4825 "kp-f1", /* 0xff91 */
4829 "kp-home", /* 0xff95 */
4834 "kp-prior", /* kp-page-up */
4835 "kp-next", /* kp-page-down */
4841 0, 0, 0, 0, 0, 0, 0, 0, 0,
4842 "kp-multiply", /* 0xffaa */
4847 "kp-divide", /* 0xffaf */
4848 "kp-0", /* 0xffb0 */
4849 "kp-1", "kp-2", "kp-3", "kp-4", "kp-5", "kp-6", "kp-7", "kp-8", "kp-9",
4852 "kp-equal", /* 0xffbd */
4853 "f1", /* 0xffbe */ /* IsFunctionKey */
4855 "f3", "f4", "f5", "f6", "f7", "f8", "f9", "f10", /* 0xffc0 */
4856 "f11", "f12", "f13", "f14", "f15", "f16", "f17", "f18",
4857 "f19", "f20", "f21", "f22", "f23", "f24", "f25", "f26", /* 0xffd0 */
4858 "f27", "f28", "f29", "f30", "f31", "f32", "f33", "f34",
4859 "f35", 0, 0, 0, 0, 0, 0, 0, /* 0xffe0 */
4860 0, 0, 0, 0, 0, 0, 0, 0,
4861 0, 0, 0, 0, 0, 0, 0, 0, /* 0xfff0 */
4862 0, 0, 0, 0, 0, 0, 0, "delete"
4865 /* ISO 9995 Function and Modifier Keys; the first byte is 0xFE. */
4866 #define ISO_FUNCTION_KEY_OFFSET 0xfe00
4868 static char *iso_lispy_function_keys
[] =
4870 0, 0, 0, 0, 0, 0, 0, 0, /* 0xfe00 */
4871 0, 0, 0, 0, 0, 0, 0, 0, /* 0xfe08 */
4872 0, 0, 0, 0, 0, 0, 0, 0, /* 0xfe10 */
4873 0, 0, 0, 0, 0, 0, 0, 0, /* 0xfe18 */
4874 "iso-lefttab", /* 0xfe20 */
4875 "iso-move-line-up", "iso-move-line-down",
4876 "iso-partial-line-up", "iso-partial-line-down",
4877 "iso-partial-space-left", "iso-partial-space-right",
4878 "iso-set-margin-left", "iso-set-margin-right", /* 0xffe27, 28 */
4879 "iso-release-margin-left", "iso-release-margin-right",
4880 "iso-release-both-margins",
4881 "iso-fast-cursor-left", "iso-fast-cursor-right",
4882 "iso-fast-cursor-up", "iso-fast-cursor-down",
4883 "iso-continuous-underline", "iso-discontinuous-underline", /* 0xfe30, 31 */
4884 "iso-emphasize", "iso-center-object", "iso-enter", /* ... 0xfe34 */
4887 #endif /* not HAVE_NTGUI */
4889 Lisp_Object Vlispy_mouse_stem
;
4891 static char *lispy_wheel_names
[] =
4893 "wheel-up", "wheel-down"
4896 /* drag-n-drop events are generated when a set of selected files are
4897 dragged from another application and dropped onto an Emacs window. */
4898 static char *lispy_drag_n_drop_names
[] =
4903 /* Scroll bar parts. */
4904 Lisp_Object Qabove_handle
, Qhandle
, Qbelow_handle
;
4905 Lisp_Object Qup
, Qdown
, Qbottom
, Qend_scroll
;
4906 Lisp_Object Qtop
, Qratio
;
4908 /* An array of scroll bar parts, indexed by an enum scroll_bar_part value. */
4909 Lisp_Object
*scroll_bar_parts
[] = {
4910 &Qabove_handle
, &Qhandle
, &Qbelow_handle
,
4911 &Qup
, &Qdown
, &Qtop
, &Qbottom
, &Qend_scroll
, &Qratio
4914 /* User signal events. */
4915 Lisp_Object Qusr1_signal
, Qusr2_signal
;
4917 Lisp_Object
*lispy_user_signals
[] =
4919 &Qusr1_signal
, &Qusr2_signal
4923 /* A vector, indexed by button number, giving the down-going location
4924 of currently depressed buttons, both scroll bar and non-scroll bar.
4926 The elements have the form
4927 (BUTTON-NUMBER MODIFIER-MASK . REST)
4928 where REST is the cdr of a position as it would be reported in the event.
4930 The make_lispy_event function stores positions here to tell the
4931 difference between click and drag events, and to store the starting
4932 location to be included in drag events. */
4934 static Lisp_Object button_down_location
;
4936 /* Information about the most recent up-going button event: Which
4937 button, what location, and what time. */
4939 static int last_mouse_button
;
4940 static int last_mouse_x
;
4941 static int last_mouse_y
;
4942 static unsigned long button_down_time
;
4944 /* The maximum time between clicks to make a double-click, or Qnil to
4945 disable double-click detection, or Qt for no time limit. */
4947 Lisp_Object Vdouble_click_time
;
4949 /* Maximum number of pixels the mouse may be moved between clicks
4950 to make a double-click. */
4952 EMACS_INT double_click_fuzz
;
4954 /* The number of clicks in this multiple-click. */
4956 int double_click_count
;
4958 /* Return position of a mouse click or wheel event */
4961 make_lispy_position (f
, x
, y
, time
)
4967 enum window_part part
;
4968 Lisp_Object posn
= Qnil
;
4969 Lisp_Object extra_info
= Qnil
;
4972 /* Set `window' to the window under frame pixel coordinates (x,y) */
4974 window
= window_from_coordinates (f
, XINT (*x
), XINT (*y
),
4975 &part
, &wx
, &wy
, 0);
4979 if (WINDOWP (window
))
4981 /* It's a click in window window at frame coordinates (x,y) */
4982 struct window
*w
= XWINDOW (window
);
4983 Lisp_Object string_info
= Qnil
;
4984 int textpos
= -1, rx
= -1, ry
= -1;
4985 int dx
= -1, dy
= -1;
4986 int width
= -1, height
= -1;
4987 Lisp_Object object
= Qnil
;
4989 /* Set event coordinates to window-relative coordinates
4990 for constructing the Lisp event below. */
4994 if (part
== ON_MODE_LINE
|| part
== ON_HEADER_LINE
)
4996 /* Mode line or header line. Look for a string under
4997 the mouse that may have a `local-map' property. */
5001 posn
= part
== ON_MODE_LINE
? Qmode_line
: Qheader_line
;
5003 string
= mode_line_string (w
, part
, &rx
, &ry
, &charpos
,
5004 &object
, &dx
, &dy
, &width
, &height
);
5005 if (STRINGP (string
))
5006 string_info
= Fcons (string
, make_number (charpos
));
5007 if (w
== XWINDOW (selected_window
))
5010 textpos
= XMARKER (w
->pointm
)->charpos
;
5012 else if (part
== ON_VERTICAL_BORDER
)
5014 posn
= Qvertical_line
;
5019 else if (part
== ON_LEFT_MARGIN
|| part
== ON_RIGHT_MARGIN
)
5024 posn
= (part
== ON_LEFT_MARGIN
) ? Qleft_margin
: Qright_margin
;
5026 string
= marginal_area_string (w
, part
, &rx
, &ry
, &charpos
,
5027 &object
, &dx
, &dy
, &width
, &height
);
5028 if (STRINGP (string
))
5029 string_info
= Fcons (string
, make_number (charpos
));
5031 else if (part
== ON_LEFT_FRINGE
|| part
== ON_RIGHT_FRINGE
)
5033 posn
= (part
== ON_LEFT_FRINGE
) ? Qleft_fringe
: Qright_fringe
;
5036 if (part
== ON_RIGHT_FRINGE
)
5037 dx
-= (window_box_width (w
, LEFT_MARGIN_AREA
)
5038 + window_box_width (w
, TEXT_AREA
)
5039 + (WINDOW_HAS_FRINGES_OUTSIDE_MARGINS (w
)
5040 ? window_box_width (w
, RIGHT_MARGIN_AREA
)
5042 else if (!WINDOW_HAS_FRINGES_OUTSIDE_MARGINS (w
))
5043 dx
-= window_box_width (w
, LEFT_MARGIN_AREA
);
5048 Lisp_Object string2
, object2
= Qnil
;
5049 struct display_pos p
;
5051 int width2
, height2
;
5052 wx
= max (WINDOW_LEFT_MARGIN_WIDTH (w
), wx
);
5053 string2
= buffer_posn_from_coords (w
, &wx
, &wy
, &p
,
5054 &object2
, &dx2
, &dy2
,
5056 textpos
= CHARPOS (p
.pos
);
5057 if (rx
< 0) rx
= wx
;
5058 if (ry
< 0) ry
= wy
;
5059 if (dx
< 0) dx
= dx2
;
5060 if (dy
< 0) dy
= dy2
;
5061 if (width
< 0) width
= width2
;
5062 if (height
< 0) height
= height2
;
5066 posn
= make_number (textpos
);
5067 if (STRINGP (string2
))
5068 string_info
= Fcons (string2
,
5069 make_number (CHARPOS (p
.string_pos
)));
5075 #ifdef HAVE_WINDOW_SYSTEM
5076 if (IMAGEP (object
))
5078 Lisp_Object image_map
, hotspot
;
5079 if ((image_map
= Fplist_get (XCDR (object
), QCmap
),
5081 && (hotspot
= find_hot_spot (image_map
, dx
, dy
),
5083 && (hotspot
= XCDR (hotspot
), CONSP (hotspot
)))
5084 posn
= XCAR (hotspot
);
5089 extra_info
= Fcons (object
,
5090 Fcons (Fcons (make_number (dx
),
5092 Fcons (Fcons (make_number (width
),
5093 make_number (height
)),
5097 extra_info
= Fcons (string_info
,
5098 Fcons (make_number (textpos
),
5099 Fcons (Fcons (make_number (rx
),
5105 XSETFRAME (window
, f
);
5110 XSETFASTINT (*x
, 0);
5111 XSETFASTINT (*y
, 0);
5114 return Fcons (window
,
5116 Fcons (Fcons (*x
, *y
),
5117 Fcons (make_number (time
),
5121 /* Given a struct input_event, build the lisp event which represents
5122 it. If EVENT is 0, build a mouse movement event from the mouse
5123 movement buffer, which should have a movement event in it.
5125 Note that events must be passed to this function in the order they
5126 are received; this function stores the location of button presses
5127 in order to build drag events when the button is released. */
5130 make_lispy_event (event
)
5131 struct input_event
*event
;
5135 switch (SWITCH_ENUM_CAST (event
->kind
))
5137 /* A simple keystroke. */
5138 case ASCII_KEYSTROKE_EVENT
:
5140 Lisp_Object lispy_c
;
5141 int c
= event
->code
& 0377;
5142 /* Turn ASCII characters into control characters
5144 if (event
->modifiers
& ctrl_modifier
)
5145 c
= make_ctrl_char (c
);
5147 /* Add in the other modifier bits. We took care of ctrl_modifier
5148 just above, and the shift key was taken care of by the X code,
5149 and applied to control characters by make_ctrl_char. */
5150 c
|= (event
->modifiers
5151 & (meta_modifier
| alt_modifier
5152 | hyper_modifier
| super_modifier
));
5153 /* Distinguish Shift-SPC from SPC. */
5154 if ((event
->code
& 0377) == 040
5155 && event
->modifiers
& shift_modifier
)
5156 c
|= shift_modifier
;
5157 button_down_time
= 0;
5158 XSETFASTINT (lispy_c
, c
);
5162 case MULTIBYTE_CHAR_KEYSTROKE_EVENT
:
5164 Lisp_Object lispy_c
;
5165 int c
= event
->code
;
5167 /* Add in the other modifier bits. We took care of ctrl_modifier
5168 just above, and the shift key was taken care of by the X code,
5169 and applied to control characters by make_ctrl_char. */
5170 c
|= (event
->modifiers
5171 & (meta_modifier
| alt_modifier
5172 | hyper_modifier
| super_modifier
| ctrl_modifier
));
5173 /* What about the `shift' modifier ? */
5174 button_down_time
= 0;
5175 XSETFASTINT (lispy_c
, c
);
5179 /* A function key. The symbol may need to have modifier prefixes
5181 case NON_ASCII_KEYSTROKE_EVENT
:
5182 button_down_time
= 0;
5184 for (i
= 0; i
< sizeof (lispy_accent_codes
) / sizeof (int); i
++)
5185 if (event
->code
== lispy_accent_codes
[i
])
5186 return modify_event_symbol (i
,
5188 Qfunction_key
, Qnil
,
5189 lispy_accent_keys
, &accent_key_syms
,
5190 (sizeof (lispy_accent_keys
)
5191 / sizeof (lispy_accent_keys
[0])));
5195 if (event
->code
>= 0x400 && event
->code
< 0x500)
5196 return modify_event_symbol (event
->code
- 0x400,
5197 event
->modifiers
& ~shift_modifier
,
5198 Qfunction_key
, Qnil
,
5199 lispy_kana_keys
, &func_key_syms
,
5200 (sizeof (lispy_kana_keys
)
5201 / sizeof (lispy_kana_keys
[0])));
5202 #endif /* XK_kana_A */
5205 #ifdef ISO_FUNCTION_KEY_OFFSET
5206 if (event
->code
< FUNCTION_KEY_OFFSET
5207 && event
->code
>= ISO_FUNCTION_KEY_OFFSET
)
5208 return modify_event_symbol (event
->code
- ISO_FUNCTION_KEY_OFFSET
,
5210 Qfunction_key
, Qnil
,
5211 iso_lispy_function_keys
, &func_key_syms
,
5212 (sizeof (iso_lispy_function_keys
)
5213 / sizeof (iso_lispy_function_keys
[0])));
5216 /* Handle system-specific or unknown keysyms. */
5217 if (event
->code
& (1 << 28)
5218 || event
->code
- FUNCTION_KEY_OFFSET
< 0
5219 || (event
->code
- FUNCTION_KEY_OFFSET
5220 >= sizeof lispy_function_keys
/ sizeof *lispy_function_keys
)
5221 || !lispy_function_keys
[event
->code
- FUNCTION_KEY_OFFSET
])
5223 /* We need to use an alist rather than a vector as the cache
5224 since we can't make a vector long enuf. */
5225 if (NILP (current_kboard
->system_key_syms
))
5226 current_kboard
->system_key_syms
= Fcons (Qnil
, Qnil
);
5227 return modify_event_symbol (event
->code
,
5230 current_kboard
->Vsystem_key_alist
,
5231 0, ¤t_kboard
->system_key_syms
,
5235 return modify_event_symbol (event
->code
- FUNCTION_KEY_OFFSET
,
5237 Qfunction_key
, Qnil
,
5238 lispy_function_keys
, &func_key_syms
,
5239 (sizeof (lispy_function_keys
)
5240 / sizeof (lispy_function_keys
[0])));
5243 /* A mouse click. Figure out where it is, decide whether it's
5244 a press, click or drag, and build the appropriate structure. */
5245 case MOUSE_CLICK_EVENT
:
5246 #ifndef USE_TOOLKIT_SCROLL_BARS
5247 case SCROLL_BAR_CLICK_EVENT
:
5250 int button
= event
->code
;
5252 Lisp_Object position
;
5253 Lisp_Object
*start_pos_ptr
;
5254 Lisp_Object start_pos
;
5258 /* Build the position as appropriate for this mouse click. */
5259 if (event
->kind
== MOUSE_CLICK_EVENT
)
5261 struct frame
*f
= XFRAME (event
->frame_or_window
);
5262 #if ! defined (USE_X_TOOLKIT) && ! defined (USE_GTK)
5266 /* Ignore mouse events that were made on frame that
5267 have been deleted. */
5268 if (! FRAME_LIVE_P (f
))
5271 #if ! defined (USE_X_TOOLKIT) && ! defined (USE_GTK)
5272 /* EVENT->x and EVENT->y are frame-relative pixel
5273 coordinates at this place. Under old redisplay, COLUMN
5274 and ROW are set to frame relative glyph coordinates
5275 which are then used to determine whether this click is
5276 in a menu (non-toolkit version). */
5277 pixel_to_glyph_coords (f
, XINT (event
->x
), XINT (event
->y
),
5278 &column
, &row
, NULL
, 1);
5280 /* In the non-toolkit version, clicks on the menu bar
5281 are ordinary button events in the event buffer.
5282 Distinguish them, and invoke the menu.
5284 (In the toolkit version, the toolkit handles the menu bar
5285 and Emacs doesn't know about it until after the user
5286 makes a selection.) */
5287 if (row
>= 0 && row
< FRAME_MENU_BAR_LINES (f
)
5288 && (event
->modifiers
& down_modifier
))
5290 Lisp_Object items
, item
;
5295 /* Activate the menu bar on the down event. If the
5296 up event comes in before the menu code can deal with it,
5298 if (! (event
->modifiers
& down_modifier
))
5302 /* Find the menu bar item under `column'. */
5304 items
= FRAME_MENU_BAR_ITEMS (f
);
5305 for (i
= 0; i
< XVECTOR (items
)->size
; i
+= 4)
5307 Lisp_Object pos
, string
;
5308 string
= AREF (items
, i
+ 1);
5309 pos
= AREF (items
, i
+ 3);
5312 if (column
>= XINT (pos
)
5313 && column
< XINT (pos
) + SCHARS (string
))
5315 item
= AREF (items
, i
);
5320 /* ELisp manual 2.4b says (x y) are window relative but
5321 code says they are frame-relative. */
5323 = Fcons (event
->frame_or_window
,
5325 Fcons (Fcons (event
->x
, event
->y
),
5326 Fcons (make_number (event
->timestamp
),
5329 return Fcons (item
, Fcons (position
, Qnil
));
5331 #endif /* not USE_X_TOOLKIT && not USE_GTK */
5333 position
= make_lispy_position (f
, &event
->x
, &event
->y
,
5336 #ifndef USE_TOOLKIT_SCROLL_BARS
5339 /* It's a scrollbar click. */
5341 Lisp_Object portion_whole
;
5344 window
= event
->frame_or_window
;
5345 portion_whole
= Fcons (event
->x
, event
->y
);
5346 part
= *scroll_bar_parts
[(int) event
->part
];
5350 Fcons (Qvertical_scroll_bar
,
5351 Fcons (portion_whole
,
5352 Fcons (make_number (event
->timestamp
),
5353 Fcons (part
, Qnil
)))));
5355 #endif /* not USE_TOOLKIT_SCROLL_BARS */
5357 if (button
>= ASIZE (button_down_location
))
5359 button_down_location
= larger_vector (button_down_location
,
5361 mouse_syms
= larger_vector (mouse_syms
, button
+ 1, Qnil
);
5364 start_pos_ptr
= &AREF (button_down_location
, button
);
5365 start_pos
= *start_pos_ptr
;
5366 *start_pos_ptr
= Qnil
;
5369 /* On window-system frames, use the value of
5370 double-click-fuzz as is. On other frames, interpret it
5371 as a multiple of 1/8 characters. */
5375 if (WINDOWP (event
->frame_or_window
))
5376 f
= XFRAME (XWINDOW (event
->frame_or_window
)->frame
);
5377 else if (FRAMEP (event
->frame_or_window
))
5378 f
= XFRAME (event
->frame_or_window
);
5382 if (FRAME_WINDOW_P (f
))
5383 fuzz
= double_click_fuzz
;
5385 fuzz
= double_click_fuzz
/ 8;
5387 is_double
= (button
== last_mouse_button
5388 && (abs (XINT (event
->x
) - last_mouse_x
) <= fuzz
)
5389 && (abs (XINT (event
->y
) - last_mouse_y
) <= fuzz
)
5390 && button_down_time
!= 0
5391 && (EQ (Vdouble_click_time
, Qt
)
5392 || (INTEGERP (Vdouble_click_time
)
5393 && ((int)(event
->timestamp
- button_down_time
)
5394 < XINT (Vdouble_click_time
)))));
5397 last_mouse_button
= button
;
5398 last_mouse_x
= XINT (event
->x
);
5399 last_mouse_y
= XINT (event
->y
);
5401 /* If this is a button press, squirrel away the location, so
5402 we can decide later whether it was a click or a drag. */
5403 if (event
->modifiers
& down_modifier
)
5407 double_click_count
++;
5408 event
->modifiers
|= ((double_click_count
> 2)
5413 double_click_count
= 1;
5414 button_down_time
= event
->timestamp
;
5415 *start_pos_ptr
= Fcopy_alist (position
);
5418 /* Now we're releasing a button - check the co-ordinates to
5419 see if this was a click or a drag. */
5420 else if (event
->modifiers
& up_modifier
)
5422 /* If we did not see a down before this up, ignore the up.
5423 Probably this happened because the down event chose a
5424 menu item. It would be an annoyance to treat the
5425 release of the button that chose the menu item as a
5428 if (!CONSP (start_pos
))
5431 event
->modifiers
&= ~up_modifier
;
5432 #if 0 /* Formerly we treated an up with no down as a click event. */
5433 if (!CONSP (start_pos
))
5434 event
->modifiers
|= click_modifier
;
5439 EMACS_INT xdiff
= double_click_fuzz
, ydiff
= double_click_fuzz
;
5441 /* The third element of every position
5442 should be the (x,y) pair. */
5443 down
= Fcar (Fcdr (Fcdr (start_pos
)));
5445 && INTEGERP (XCAR (down
)) && INTEGERP (XCDR (down
)))
5447 xdiff
= XFASTINT (event
->x
) - XFASTINT (XCAR (down
));
5448 ydiff
= XFASTINT (event
->y
) - XFASTINT (XCDR (down
));
5451 if (xdiff
< double_click_fuzz
&& xdiff
> - double_click_fuzz
5452 && ydiff
< double_click_fuzz
5453 && ydiff
> - double_click_fuzz
)
5454 /* Mouse hasn't moved (much). */
5455 event
->modifiers
|= click_modifier
;
5458 button_down_time
= 0;
5459 event
->modifiers
|= drag_modifier
;
5462 /* Don't check is_double; treat this as multiple
5463 if the down-event was multiple. */
5464 if (double_click_count
> 1)
5465 event
->modifiers
|= ((double_click_count
> 2)
5471 /* Every mouse event should either have the down_modifier or
5472 the up_modifier set. */
5476 /* Get the symbol we should use for the mouse click. */
5479 head
= modify_event_symbol (button
,
5481 Qmouse_click
, Vlispy_mouse_stem
,
5484 XVECTOR (mouse_syms
)->size
);
5485 if (event
->modifiers
& drag_modifier
)
5490 else if (event
->modifiers
& (double_modifier
| triple_modifier
))
5493 Fcons (make_number (double_click_count
),
5504 Lisp_Object position
;
5507 /* Build the position as appropriate for this mouse click. */
5508 struct frame
*f
= XFRAME (event
->frame_or_window
);
5510 /* Ignore wheel events that were made on frame that have been
5512 if (! FRAME_LIVE_P (f
))
5515 position
= make_lispy_position (f
, &event
->x
, &event
->y
,
5518 /* Set double or triple modifiers to indicate the wheel speed. */
5520 /* On window-system frames, use the value of
5521 double-click-fuzz as is. On other frames, interpret it
5522 as a multiple of 1/8 characters. */
5527 if (WINDOWP (event
->frame_or_window
))
5528 f
= XFRAME (XWINDOW (event
->frame_or_window
)->frame
);
5529 else if (FRAMEP (event
->frame_or_window
))
5530 f
= XFRAME (event
->frame_or_window
);
5534 if (FRAME_WINDOW_P (f
))
5535 fuzz
= double_click_fuzz
;
5537 fuzz
= double_click_fuzz
/ 8;
5539 is_double
= (last_mouse_button
< 0
5540 && (abs (XINT (event
->x
) - last_mouse_x
) <= fuzz
)
5541 && (abs (XINT (event
->y
) - last_mouse_y
) <= fuzz
)
5542 && button_down_time
!= 0
5543 && (EQ (Vdouble_click_time
, Qt
)
5544 || (INTEGERP (Vdouble_click_time
)
5545 && ((int)(event
->timestamp
- button_down_time
)
5546 < XINT (Vdouble_click_time
)))));
5549 double_click_count
++;
5550 event
->modifiers
|= ((double_click_count
> 2)
5556 double_click_count
= 1;
5557 event
->modifiers
|= click_modifier
;
5560 button_down_time
= event
->timestamp
;
5561 /* Use a negative value to distinguish wheel from mouse button. */
5562 last_mouse_button
= -1;
5563 last_mouse_x
= XINT (event
->x
);
5564 last_mouse_y
= XINT (event
->y
);
5570 if (event
->modifiers
& up_modifier
)
5572 /* Emit a wheel-up event. */
5573 event
->modifiers
&= ~up_modifier
;
5576 else if (event
->modifiers
& down_modifier
)
5578 /* Emit a wheel-down event. */
5579 event
->modifiers
&= ~down_modifier
;
5583 /* Every wheel event should either have the down_modifier or
5584 the up_modifier set. */
5587 /* Get the symbol we should use for the wheel event. */
5588 head
= modify_event_symbol (symbol_num
,
5594 ASIZE (wheel_syms
));
5597 if (event
->modifiers
& (double_modifier
| triple_modifier
))
5600 Fcons (make_number (double_click_count
),
5609 #ifdef USE_TOOLKIT_SCROLL_BARS
5611 /* We don't have down and up events if using toolkit scroll bars,
5612 so make this always a click event. Store in the `part' of
5613 the Lisp event a symbol which maps to the following actions:
5615 `above_handle' page up
5616 `below_handle' page down
5620 `bottom' bottom of buffer
5621 `handle' thumb has been dragged.
5622 `end-scroll' end of interaction with scroll bar
5624 The incoming input_event contains in its `part' member an
5625 index of type `enum scroll_bar_part' which we can use as an
5626 index in scroll_bar_parts to get the appropriate symbol. */
5628 case SCROLL_BAR_CLICK_EVENT
:
5630 Lisp_Object position
, head
, window
, portion_whole
, part
;
5632 window
= event
->frame_or_window
;
5633 portion_whole
= Fcons (event
->x
, event
->y
);
5634 part
= *scroll_bar_parts
[(int) event
->part
];
5638 Fcons (Qvertical_scroll_bar
,
5639 Fcons (portion_whole
,
5640 Fcons (make_number (event
->timestamp
),
5641 Fcons (part
, Qnil
)))));
5643 /* Always treat scroll bar events as clicks. */
5644 event
->modifiers
|= click_modifier
;
5645 event
->modifiers
&= ~up_modifier
;
5647 if (event
->code
>= ASIZE (mouse_syms
))
5648 mouse_syms
= larger_vector (mouse_syms
, event
->code
+ 1, Qnil
);
5650 /* Get the symbol we should use for the mouse click. */
5651 head
= modify_event_symbol (event
->code
,
5656 XVECTOR (mouse_syms
)->size
);
5657 return Fcons (head
, Fcons (position
, Qnil
));
5660 #endif /* USE_TOOLKIT_SCROLL_BARS */
5663 case W32_SCROLL_BAR_CLICK_EVENT
:
5665 int button
= event
->code
;
5667 Lisp_Object position
;
5668 Lisp_Object
*start_pos_ptr
;
5669 Lisp_Object start_pos
;
5673 Lisp_Object portion_whole
;
5676 window
= event
->frame_or_window
;
5677 portion_whole
= Fcons (event
->x
, event
->y
);
5678 part
= *scroll_bar_parts
[(int) event
->part
];
5682 Fcons (Qvertical_scroll_bar
,
5683 Fcons (portion_whole
,
5684 Fcons (make_number (event
->timestamp
),
5685 Fcons (part
, Qnil
)))));
5688 /* Always treat W32 scroll bar events as clicks. */
5689 event
->modifiers
|= click_modifier
;
5692 /* Get the symbol we should use for the mouse click. */
5695 head
= modify_event_symbol (button
,
5700 XVECTOR (mouse_syms
)->size
);
5706 #endif /* WINDOWSNT */
5708 case DRAG_N_DROP_EVENT
:
5711 Lisp_Object head
, position
;
5714 /* The frame_or_window field should be a cons of the frame in
5715 which the event occurred and a list of the filenames
5717 if (! CONSP (event
->frame_or_window
))
5720 f
= XFRAME (XCAR (event
->frame_or_window
));
5721 files
= XCDR (event
->frame_or_window
);
5723 /* Ignore mouse events that were made on frames that
5724 have been deleted. */
5725 if (! FRAME_LIVE_P (f
))
5728 position
= make_lispy_position (f
, &event
->x
, &event
->y
,
5731 head
= modify_event_symbol (0, event
->modifiers
,
5733 lispy_drag_n_drop_names
,
5734 &drag_n_drop_syms
, 1);
5740 #endif /* HAVE_MOUSE */
5742 #if defined (USE_X_TOOLKIT) || defined (HAVE_NTGUI) || defined (MAC_OS) \
5743 || defined (USE_GTK)
5744 case MENU_BAR_EVENT
:
5745 if (EQ (event
->arg
, event
->frame_or_window
))
5746 /* This is the prefix key. We translate this to
5747 `(menu_bar)' because the code in keyboard.c for menu
5748 events, which we use, relies on this. */
5749 return Fcons (Qmenu_bar
, Qnil
);
5753 case SELECT_WINDOW_EVENT
:
5754 /* Make an event (select-window (WINDOW)). */
5755 return Fcons (Qselect_window
,
5756 Fcons (Fcons (event
->frame_or_window
, Qnil
),
5759 case TOOL_BAR_EVENT
:
5760 if (EQ (event
->arg
, event
->frame_or_window
))
5761 /* This is the prefix key. We translate this to
5762 `(tool_bar)' because the code in keyboard.c for tool bar
5763 events, which we use, relies on this. */
5764 return Fcons (Qtool_bar
, Qnil
);
5765 else if (SYMBOLP (event
->arg
))
5766 return apply_modifiers (event
->modifiers
, event
->arg
);
5769 case USER_SIGNAL_EVENT
:
5770 /* A user signal. */
5771 return *lispy_user_signals
[event
->code
];
5773 case SAVE_SESSION_EVENT
:
5774 return Qsave_session
;
5776 /* The 'kind' field of the event is something we don't recognize. */
5785 make_lispy_movement (frame
, bar_window
, part
, x
, y
, time
)
5787 Lisp_Object bar_window
;
5788 enum scroll_bar_part part
;
5792 /* Is it a scroll bar movement? */
5793 if (frame
&& ! NILP (bar_window
))
5795 Lisp_Object part_sym
;
5797 part_sym
= *scroll_bar_parts
[(int) part
];
5798 return Fcons (Qscroll_bar_movement
,
5799 (Fcons (Fcons (bar_window
,
5800 Fcons (Qvertical_scroll_bar
,
5801 Fcons (Fcons (x
, y
),
5802 Fcons (make_number (time
),
5808 /* Or is it an ordinary mouse movement? */
5811 Lisp_Object position
;
5813 position
= make_lispy_position (frame
, &x
, &y
, time
);
5815 return Fcons (Qmouse_movement
,
5821 #endif /* HAVE_MOUSE */
5823 /* Construct a switch frame event. */
5825 make_lispy_switch_frame (frame
)
5828 return Fcons (Qswitch_frame
, Fcons (frame
, Qnil
));
5831 /* Manipulating modifiers. */
5833 /* Parse the name of SYMBOL, and return the set of modifiers it contains.
5835 If MODIFIER_END is non-zero, set *MODIFIER_END to the position in
5836 SYMBOL's name of the end of the modifiers; the string from this
5837 position is the unmodified symbol name.
5839 This doesn't use any caches. */
5842 parse_modifiers_uncached (symbol
, modifier_end
)
5850 CHECK_SYMBOL (symbol
);
5853 name
= SYMBOL_NAME (symbol
);
5855 for (i
= 0; i
+2 <= SBYTES (name
); )
5857 int this_mod_end
= 0;
5860 /* See if the name continues with a modifier word.
5861 Check that the word appears, but don't check what follows it.
5862 Set this_mod and this_mod_end to record what we find. */
5864 switch (SREF (name
, i
))
5866 #define SINGLE_LETTER_MOD(BIT) \
5867 (this_mod_end = i + 1, this_mod = BIT)
5870 SINGLE_LETTER_MOD (alt_modifier
);
5874 SINGLE_LETTER_MOD (ctrl_modifier
);
5878 SINGLE_LETTER_MOD (hyper_modifier
);
5882 SINGLE_LETTER_MOD (meta_modifier
);
5886 SINGLE_LETTER_MOD (shift_modifier
);
5890 SINGLE_LETTER_MOD (super_modifier
);
5893 #undef SINGLE_LETTER_MOD
5895 #define MULTI_LETTER_MOD(BIT, NAME, LEN) \
5896 if (i + LEN + 1 <= SBYTES (name) \
5897 && ! strncmp (SDATA (name) + i, NAME, LEN)) \
5899 this_mod_end = i + LEN; \
5904 MULTI_LETTER_MOD (drag_modifier
, "drag", 4);
5905 MULTI_LETTER_MOD (down_modifier
, "down", 4);
5906 MULTI_LETTER_MOD (double_modifier
, "double", 6);
5910 MULTI_LETTER_MOD (triple_modifier
, "triple", 6);
5912 #undef MULTI_LETTER_MOD
5916 /* If we found no modifier, stop looking for them. */
5917 if (this_mod_end
== 0)
5920 /* Check there is a dash after the modifier, so that it
5921 really is a modifier. */
5922 if (this_mod_end
>= SBYTES (name
)
5923 || SREF (name
, this_mod_end
) != '-')
5926 /* This modifier is real; look for another. */
5927 modifiers
|= this_mod
;
5928 i
= this_mod_end
+ 1;
5931 /* Should we include the `click' modifier? */
5932 if (! (modifiers
& (down_modifier
| drag_modifier
5933 | double_modifier
| triple_modifier
))
5934 && i
+ 7 == SBYTES (name
)
5935 && strncmp (SDATA (name
) + i
, "mouse-", 6) == 0
5936 && ('0' <= SREF (name
, i
+ 6) && SREF (name
, i
+ 6) <= '9'))
5937 modifiers
|= click_modifier
;
5945 /* Return a symbol whose name is the modifier prefixes for MODIFIERS
5946 prepended to the string BASE[0..BASE_LEN-1].
5947 This doesn't use any caches. */
5949 apply_modifiers_uncached (modifiers
, base
, base_len
, base_len_byte
)
5952 int base_len
, base_len_byte
;
5954 /* Since BASE could contain nulls, we can't use intern here; we have
5955 to use Fintern, which expects a genuine Lisp_String, and keeps a
5958 = (char *) alloca (sizeof ("A-C-H-M-S-s-down-drag-double-triple-"));
5964 /* Only the event queue may use the `up' modifier; it should always
5965 be turned into a click or drag event before presented to lisp code. */
5966 if (modifiers
& up_modifier
)
5969 if (modifiers
& alt_modifier
) { *p
++ = 'A'; *p
++ = '-'; }
5970 if (modifiers
& ctrl_modifier
) { *p
++ = 'C'; *p
++ = '-'; }
5971 if (modifiers
& hyper_modifier
) { *p
++ = 'H'; *p
++ = '-'; }
5972 if (modifiers
& meta_modifier
) { *p
++ = 'M'; *p
++ = '-'; }
5973 if (modifiers
& shift_modifier
) { *p
++ = 'S'; *p
++ = '-'; }
5974 if (modifiers
& super_modifier
) { *p
++ = 's'; *p
++ = '-'; }
5975 if (modifiers
& double_modifier
) { strcpy (p
, "double-"); p
+= 7; }
5976 if (modifiers
& triple_modifier
) { strcpy (p
, "triple-"); p
+= 7; }
5977 if (modifiers
& down_modifier
) { strcpy (p
, "down-"); p
+= 5; }
5978 if (modifiers
& drag_modifier
) { strcpy (p
, "drag-"); p
+= 5; }
5979 /* The click modifier is denoted by the absence of other modifiers. */
5983 mod_len
= p
- new_mods
;
5987 Lisp_Object new_name
;
5989 new_name
= make_uninit_multibyte_string (mod_len
+ base_len
,
5990 mod_len
+ base_len_byte
);
5991 bcopy (new_mods
, SDATA (new_name
), mod_len
);
5992 bcopy (base
, SDATA (new_name
) + mod_len
, base_len_byte
);
5994 return Fintern (new_name
, Qnil
);
5999 static char *modifier_names
[] =
6001 "up", "down", "drag", "click", "double", "triple", 0, 0,
6002 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
6003 0, 0, "alt", "super", "hyper", "shift", "control", "meta"
6005 #define NUM_MOD_NAMES (sizeof (modifier_names) / sizeof (modifier_names[0]))
6007 static Lisp_Object modifier_symbols
;
6009 /* Return the list of modifier symbols corresponding to the mask MODIFIERS. */
6011 lispy_modifier_list (modifiers
)
6014 Lisp_Object modifier_list
;
6017 modifier_list
= Qnil
;
6018 for (i
= 0; (1<<i
) <= modifiers
&& i
< NUM_MOD_NAMES
; i
++)
6019 if (modifiers
& (1<<i
))
6020 modifier_list
= Fcons (XVECTOR (modifier_symbols
)->contents
[i
],
6023 return modifier_list
;
6027 /* Parse the modifiers on SYMBOL, and return a list like (UNMODIFIED MASK),
6028 where UNMODIFIED is the unmodified form of SYMBOL,
6029 MASK is the set of modifiers present in SYMBOL's name.
6030 This is similar to parse_modifiers_uncached, but uses the cache in
6031 SYMBOL's Qevent_symbol_element_mask property, and maintains the
6032 Qevent_symbol_elements property. */
6035 parse_modifiers (symbol
)
6038 Lisp_Object elements
;
6040 elements
= Fget (symbol
, Qevent_symbol_element_mask
);
6041 if (CONSP (elements
))
6046 int modifiers
= parse_modifiers_uncached (symbol
, &end
);
6047 Lisp_Object unmodified
;
6050 unmodified
= Fintern (make_string (SDATA (SYMBOL_NAME (symbol
)) + end
,
6051 SBYTES (SYMBOL_NAME (symbol
)) - end
),
6054 if (modifiers
& ~INTMASK
)
6056 XSETFASTINT (mask
, modifiers
);
6057 elements
= Fcons (unmodified
, Fcons (mask
, Qnil
));
6059 /* Cache the parsing results on SYMBOL. */
6060 Fput (symbol
, Qevent_symbol_element_mask
,
6062 Fput (symbol
, Qevent_symbol_elements
,
6063 Fcons (unmodified
, lispy_modifier_list (modifiers
)));
6065 /* Since we know that SYMBOL is modifiers applied to unmodified,
6066 it would be nice to put that in unmodified's cache.
6067 But we can't, since we're not sure that parse_modifiers is
6074 /* Apply the modifiers MODIFIERS to the symbol BASE.
6075 BASE must be unmodified.
6077 This is like apply_modifiers_uncached, but uses BASE's
6078 Qmodifier_cache property, if present. It also builds
6079 Qevent_symbol_elements properties, since it has that info anyway.
6081 apply_modifiers copies the value of BASE's Qevent_kind property to
6082 the modified symbol. */
6084 apply_modifiers (modifiers
, base
)
6088 Lisp_Object cache
, index
, entry
, new_symbol
;
6090 /* Mask out upper bits. We don't know where this value's been. */
6091 modifiers
&= INTMASK
;
6093 /* The click modifier never figures into cache indices. */
6094 cache
= Fget (base
, Qmodifier_cache
);
6095 XSETFASTINT (index
, (modifiers
& ~click_modifier
));
6096 entry
= assq_no_quit (index
, cache
);
6099 new_symbol
= XCDR (entry
);
6102 /* We have to create the symbol ourselves. */
6103 new_symbol
= apply_modifiers_uncached (modifiers
,
6104 SDATA (SYMBOL_NAME (base
)),
6105 SCHARS (SYMBOL_NAME (base
)),
6106 SBYTES (SYMBOL_NAME (base
)));
6108 /* Add the new symbol to the base's cache. */
6109 entry
= Fcons (index
, new_symbol
);
6110 Fput (base
, Qmodifier_cache
, Fcons (entry
, cache
));
6112 /* We have the parsing info now for free, so we could add it to
6114 XSETFASTINT (index, modifiers);
6115 Fput (new_symbol, Qevent_symbol_element_mask,
6116 Fcons (base, Fcons (index, Qnil)));
6117 Fput (new_symbol, Qevent_symbol_elements,
6118 Fcons (base, lispy_modifier_list (modifiers)));
6119 Sadly, this is only correct if `base' is indeed a base event,
6120 which is not necessarily the case. -stef */
6123 /* Make sure this symbol is of the same kind as BASE.
6125 You'd think we could just set this once and for all when we
6126 intern the symbol above, but reorder_modifiers may call us when
6127 BASE's property isn't set right; we can't assume that just
6128 because it has a Qmodifier_cache property it must have its
6129 Qevent_kind set right as well. */
6130 if (NILP (Fget (new_symbol
, Qevent_kind
)))
6134 kind
= Fget (base
, Qevent_kind
);
6136 Fput (new_symbol
, Qevent_kind
, kind
);
6143 /* Given a symbol whose name begins with modifiers ("C-", "M-", etc),
6144 return a symbol with the modifiers placed in the canonical order.
6145 Canonical order is alphabetical, except for down and drag, which
6146 always come last. The 'click' modifier is never written out.
6148 Fdefine_key calls this to make sure that (for example) C-M-foo
6149 and M-C-foo end up being equivalent in the keymap. */
6152 reorder_modifiers (symbol
)
6155 /* It's hopefully okay to write the code this way, since everything
6156 will soon be in caches, and no consing will be done at all. */
6159 parsed
= parse_modifiers (symbol
);
6160 return apply_modifiers ((int) XINT (XCAR (XCDR (parsed
))),
6165 /* For handling events, we often want to produce a symbol whose name
6166 is a series of modifier key prefixes ("M-", "C-", etcetera) attached
6167 to some base, like the name of a function key or mouse button.
6168 modify_event_symbol produces symbols of this sort.
6170 NAME_TABLE should point to an array of strings, such that NAME_TABLE[i]
6171 is the name of the i'th symbol. TABLE_SIZE is the number of elements
6174 Alternatively, NAME_ALIST_OR_STEM is either an alist mapping codes
6175 into symbol names, or a string specifying a name stem used to
6176 construct a symbol name or the form `STEM-N', where N is the decimal
6177 representation of SYMBOL_NUM. NAME_ALIST_OR_STEM is used if it is
6178 non-nil; otherwise NAME_TABLE is used.
6180 SYMBOL_TABLE should be a pointer to a Lisp_Object whose value will
6181 persist between calls to modify_event_symbol that it can use to
6182 store a cache of the symbols it's generated for this NAME_TABLE
6183 before. The object stored there may be a vector or an alist.
6185 SYMBOL_NUM is the number of the base name we want from NAME_TABLE.
6187 MODIFIERS is a set of modifier bits (as given in struct input_events)
6188 whose prefixes should be applied to the symbol name.
6190 SYMBOL_KIND is the value to be placed in the event_kind property of
6191 the returned symbol.
6193 The symbols we create are supposed to have an
6194 `event-symbol-elements' property, which lists the modifiers present
6195 in the symbol's name. */
6198 modify_event_symbol (symbol_num
, modifiers
, symbol_kind
, name_alist_or_stem
,
6199 name_table
, symbol_table
, table_size
)
6202 Lisp_Object symbol_kind
;
6203 Lisp_Object name_alist_or_stem
;
6205 Lisp_Object
*symbol_table
;
6206 unsigned int table_size
;
6209 Lisp_Object symbol_int
;
6211 /* Get rid of the "vendor-specific" bit here. */
6212 XSETINT (symbol_int
, symbol_num
& 0xffffff);
6214 /* Is this a request for a valid symbol? */
6215 if (symbol_num
< 0 || symbol_num
>= table_size
)
6218 if (CONSP (*symbol_table
))
6219 value
= Fcdr (assq_no_quit (symbol_int
, *symbol_table
));
6221 /* If *symbol_table doesn't seem to be initialized properly, fix that.
6222 *symbol_table should be a lisp vector TABLE_SIZE elements long,
6223 where the Nth element is the symbol for NAME_TABLE[N], or nil if
6224 we've never used that symbol before. */
6227 if (! VECTORP (*symbol_table
)
6228 || XVECTOR (*symbol_table
)->size
!= table_size
)
6232 XSETFASTINT (size
, table_size
);
6233 *symbol_table
= Fmake_vector (size
, Qnil
);
6236 value
= XVECTOR (*symbol_table
)->contents
[symbol_num
];
6239 /* Have we already used this symbol before? */
6242 /* No; let's create it. */
6243 if (CONSP (name_alist_or_stem
))
6244 value
= Fcdr_safe (Fassq (symbol_int
, name_alist_or_stem
));
6245 else if (STRINGP (name_alist_or_stem
))
6247 int len
= SBYTES (name_alist_or_stem
);
6248 char *buf
= (char *) alloca (len
+ 50);
6249 if (sizeof (int) == sizeof (EMACS_INT
))
6250 sprintf (buf
, "%s-%d", SDATA (name_alist_or_stem
),
6251 (int)XINT (symbol_int
) + 1);
6252 else if (sizeof (long) == sizeof (EMACS_INT
))
6253 sprintf (buf
, "%s-%ld", SDATA (name_alist_or_stem
),
6254 (long)XINT (symbol_int
) + 1);
6255 value
= intern (buf
);
6257 else if (name_table
!= 0 && name_table
[symbol_num
])
6258 value
= intern (name_table
[symbol_num
]);
6260 #ifdef HAVE_WINDOW_SYSTEM
6263 char *name
= x_get_keysym_name (symbol_num
);
6265 value
= intern (name
);
6272 sprintf (buf
, "key-%d", symbol_num
);
6273 value
= intern (buf
);
6276 if (CONSP (*symbol_table
))
6277 *symbol_table
= Fcons (Fcons (symbol_int
, value
), *symbol_table
);
6279 XVECTOR (*symbol_table
)->contents
[symbol_num
] = value
;
6281 /* Fill in the cache entries for this symbol; this also
6282 builds the Qevent_symbol_elements property, which the user
6284 apply_modifiers (modifiers
& click_modifier
, value
);
6285 Fput (value
, Qevent_kind
, symbol_kind
);
6288 /* Apply modifiers to that symbol. */
6289 return apply_modifiers (modifiers
, value
);
6292 /* Convert a list that represents an event type,
6293 such as (ctrl meta backspace), into the usual representation of that
6294 event type as a number or a symbol. */
6296 DEFUN ("event-convert-list", Fevent_convert_list
, Sevent_convert_list
, 1, 1, 0,
6297 doc
: /* Convert the event description list EVENT-DESC to an event type.
6298 EVENT-DESC should contain one base event type (a character or symbol)
6299 and zero or more modifier names (control, meta, hyper, super, shift, alt,
6300 drag, down, double or triple). The base must be last.
6301 The return value is an event type (a character or symbol) which
6302 has the same base event type and all the specified modifiers. */)
6304 Lisp_Object event_desc
;
6312 while (CONSP (rest
))
6320 /* Given a symbol, see if it is a modifier name. */
6321 if (SYMBOLP (elt
) && CONSP (rest
))
6322 this = parse_solitary_modifier (elt
);
6326 else if (!NILP (base
))
6327 error ("Two bases given in one event");
6333 /* Let the symbol A refer to the character A. */
6334 if (SYMBOLP (base
) && SCHARS (SYMBOL_NAME (base
)) == 1)
6335 XSETINT (base
, SREF (SYMBOL_NAME (base
), 0));
6337 if (INTEGERP (base
))
6339 /* Turn (shift a) into A. */
6340 if ((modifiers
& shift_modifier
) != 0
6341 && (XINT (base
) >= 'a' && XINT (base
) <= 'z'))
6343 XSETINT (base
, XINT (base
) - ('a' - 'A'));
6344 modifiers
&= ~shift_modifier
;
6347 /* Turn (control a) into C-a. */
6348 if (modifiers
& ctrl_modifier
)
6349 return make_number ((modifiers
& ~ctrl_modifier
)
6350 | make_ctrl_char (XINT (base
)));
6352 return make_number (modifiers
| XINT (base
));
6354 else if (SYMBOLP (base
))
6355 return apply_modifiers (modifiers
, base
);
6358 error ("Invalid base event");
6363 /* Try to recognize SYMBOL as a modifier name.
6364 Return the modifier flag bit, or 0 if not recognized. */
6367 parse_solitary_modifier (symbol
)
6370 Lisp_Object name
= SYMBOL_NAME (symbol
);
6372 switch (SREF (name
, 0))
6374 #define SINGLE_LETTER_MOD(BIT) \
6375 if (SBYTES (name) == 1) \
6378 #define MULTI_LETTER_MOD(BIT, NAME, LEN) \
6379 if (LEN == SBYTES (name) \
6380 && ! strncmp (SDATA (name), NAME, LEN)) \
6384 SINGLE_LETTER_MOD (alt_modifier
);
6388 MULTI_LETTER_MOD (alt_modifier
, "alt", 3);
6392 SINGLE_LETTER_MOD (ctrl_modifier
);
6396 MULTI_LETTER_MOD (ctrl_modifier
, "ctrl", 4);
6397 MULTI_LETTER_MOD (ctrl_modifier
, "control", 7);
6401 SINGLE_LETTER_MOD (hyper_modifier
);
6405 MULTI_LETTER_MOD (hyper_modifier
, "hyper", 5);
6409 SINGLE_LETTER_MOD (meta_modifier
);
6413 MULTI_LETTER_MOD (meta_modifier
, "meta", 4);
6417 SINGLE_LETTER_MOD (shift_modifier
);
6421 MULTI_LETTER_MOD (shift_modifier
, "shift", 5);
6422 MULTI_LETTER_MOD (super_modifier
, "super", 5);
6423 SINGLE_LETTER_MOD (super_modifier
);
6427 MULTI_LETTER_MOD (drag_modifier
, "drag", 4);
6428 MULTI_LETTER_MOD (down_modifier
, "down", 4);
6429 MULTI_LETTER_MOD (double_modifier
, "double", 6);
6433 MULTI_LETTER_MOD (triple_modifier
, "triple", 6);
6436 #undef SINGLE_LETTER_MOD
6437 #undef MULTI_LETTER_MOD
6443 /* Return 1 if EVENT is a list whose elements are all integers or symbols.
6444 Such a list is not valid as an event,
6445 but it can be a Lucid-style event type list. */
6448 lucid_event_type_list_p (object
)
6453 if (! CONSP (object
))
6456 if (EQ (XCAR (object
), Qhelp_echo
)
6457 || EQ (XCAR (object
), Qvertical_line
)
6458 || EQ (XCAR (object
), Qmode_line
)
6459 || EQ (XCAR (object
), Qheader_line
))
6462 for (tail
= object
; CONSP (tail
); tail
= XCDR (tail
))
6466 if (! (INTEGERP (elt
) || SYMBOLP (elt
)))
6473 /* Store into *addr a value nonzero if terminal input chars are available.
6474 Serves the purpose of ioctl (0, FIONREAD, addr)
6475 but works even if FIONREAD does not exist.
6476 (In fact, this may actually read some input.)
6478 If DO_TIMERS_NOW is nonzero, actually run timer events that are ripe.
6479 If FILTER_EVENTS is nonzero, ignore internal events (FOCUS_IN_EVENT). */
6482 get_filtered_input_pending (addr
, do_timers_now
, filter_events
)
6487 /* First of all, have we already counted some input? */
6488 *addr
= (!NILP (Vquit_flag
)
6489 || readable_filtered_events (do_timers_now
, filter_events
));
6491 /* If input is being read as it arrives, and we have none, there is none. */
6492 if (*addr
> 0 || (interrupt_input
&& ! interrupts_deferred
))
6495 /* Try to read some input and see how much we get. */
6497 *addr
= (!NILP (Vquit_flag
)
6498 || readable_filtered_events (do_timers_now
, filter_events
));
6501 /* Store into *addr a value nonzero if terminal input chars are available.
6502 Serves the purpose of ioctl (0, FIONREAD, addr)
6503 but works even if FIONREAD does not exist.
6504 (In fact, this may actually read some input.)
6506 If DO_TIMERS_NOW is nonzero, actually run timer events that are ripe. */
6509 get_input_pending (addr
, do_timers_now
)
6513 get_filtered_input_pending (addr
, do_timers_now
, 0);
6516 /* Interface to read_avail_input, blocking SIGIO or SIGALRM if necessary. */
6519 gobble_input (expected
)
6524 if (interrupt_input
)
6527 mask
= sigblock (sigmask (SIGIO
));
6528 read_avail_input (expected
);
6532 #ifdef POLL_FOR_INPUT
6533 /* XXX This condition was (read_socket_hook && !interrupt_input),
6534 but read_socket_hook is not global anymore. Let's pretend that
6536 if (!interrupt_input
&& poll_suppress_count
== 0)
6539 mask
= sigblock (sigmask (SIGALRM
));
6540 read_avail_input (expected
);
6546 read_avail_input (expected
);
6550 /* Put a BUFFER_SWITCH_EVENT in the buffer
6551 so that read_key_sequence will notice the new current buffer. */
6554 record_asynch_buffer_change ()
6556 struct input_event event
;
6560 event
.kind
= BUFFER_SWITCH_EVENT
;
6561 event
.frame_or_window
= Qnil
;
6565 /* We don't need a buffer-switch event unless Emacs is waiting for input.
6566 The purpose of the event is to make read_key_sequence look up the
6567 keymaps again. If we aren't in read_key_sequence, we don't need one,
6568 and the event could cause trouble by messing up (input-pending-p). */
6569 tem
= Fwaiting_for_user_input_p ();
6573 /* We never need these events if we have no asynchronous subprocesses. */
6577 /* Make sure no interrupt happens while storing the event. */
6579 if (interrupt_input
)
6582 mask
= sigblock (sigmask (SIGIO
));
6583 kbd_buffer_store_event (&event
);
6590 kbd_buffer_store_event (&event
);
6597 /* Read any terminal input already buffered up by the system
6598 into the kbd_buffer, but do not wait.
6600 EXPECTED should be nonzero if the caller knows there is some input.
6602 Except on VMS, all input is read by this function.
6603 If interrupt_input is nonzero, this function MUST be called
6604 only when SIGIO is blocked.
6606 Returns the number of keyboard chars read, or -1 meaning
6607 this is a bad time to try to read input. */
6610 read_avail_input (expected
)
6617 /* Loop through the available displays, and call their input hooks. */
6621 struct display
*next
= d
->next_display
;
6623 if (d
->read_socket_hook
)
6627 struct input_event hold_quit
;
6629 EVENT_INIT (hold_quit
);
6630 hold_quit
.kind
= NO_EVENT
;
6632 /* No need for FIONREAD or fcntl; just say don't wait. */
6633 while (nr
= (*d
->read_socket_hook
) (d
, expected
, &hold_quit
), nr
> 0)
6639 if (nr
== -1) /* Not OK to read input now. */
6643 else if (nr
== -2) /* Non-transient error. */
6645 /* The display device terminated; it should be closed. */
6647 /* Kill Emacs if this was our last display. */
6648 if (! display_list
->next_display
)
6649 /* Formerly simply reported no input, but that
6650 sometimes led to a failure of Emacs to terminate.
6651 SIGHUP seems appropriate if we can't reach the
6653 /* ??? Is it really right to send the signal just to
6654 this process rather than to the whole process
6655 group? Perhaps on systems with FIONREAD Emacs is
6656 alone in its group. */
6657 kill (getpid (), SIGHUP
);
6659 /* XXX Is calling delete_display safe here? It calls Fdelete_frame. */
6660 if (d
->delete_display_hook
)
6661 (*d
->delete_display_hook
) (d
);
6666 if (hold_quit
.kind
!= NO_EVENT
)
6667 kbd_buffer_store_event (&hold_quit
);
6679 /* This is the tty way of reading available input.
6681 Note that each terminal device has its own `struct display' object,
6682 and so this function is called once for each individual termcap
6683 display. The first parameter indicates which device to read from. */
6686 tty_read_avail_input (struct display
*display
,
6688 struct input_event
*hold_quit
)
6690 /* Using KBD_BUFFER_SIZE - 1 here avoids reading more than
6691 the kbd_buffer can really hold. That may prevent loss
6692 of characters on some systems when input is stuffed at us. */
6693 unsigned char cbuf
[KBD_BUFFER_SIZE
- 1];
6695 struct tty_display_info
*tty
= display
->display_info
.tty
;
6698 if (display
->type
!= output_termcap
)
6701 /* XXX I think the following code should be moved to separate hook
6702 functions in system-dependent files. */
6705 #else /* not WINDOWSNT */
6707 n_to_read
= dos_keysns ();
6711 cbuf
[0] = dos_keyread ();
6714 #else /* not MSDOS */
6716 if (! tty
->term_initted
) /* In case we get called during bootstrap. */
6720 return 0; /* The terminal is suspended. */
6722 /* Determine how many characters we should *try* to read. */
6724 /* Find out how much input is available. */
6725 if (ioctl (fileno (tty
->input
), FIONREAD
, &n_to_read
) < 0)
6727 if (! noninteractive
)
6728 return -2; /* Close this display. */
6734 if (n_to_read
> sizeof cbuf
)
6735 n_to_read
= sizeof cbuf
;
6736 #else /* no FIONREAD */
6737 #if defined (USG) || defined (DGUX) || defined(CYGWIN)
6738 /* Read some input if available, but don't wait. */
6739 n_to_read
= sizeof cbuf
;
6740 fcntl (fileno (tty
->input
), F_SETFL
, O_NDELAY
);
6746 /* Now read; for one reason or another, this will not block.
6747 NREAD is set to the number of chars read. */
6750 nread
= emacs_read (fileno (tty
->input
), cbuf
, n_to_read
);
6751 /* POSIX infers that processes which are not in the session leader's
6752 process group won't get SIGHUP's at logout time. BSDI adheres to
6753 this part standard and returns -1 from read (0) with errno==EIO
6754 when the control tty is taken away.
6755 Jeffrey Honig <jch@bsdi.com> says this is generally safe. */
6756 if (nread
== -1 && errno
== EIO
)
6757 return -2; /* Close this display. */
6758 #if defined (AIX) && (! defined (aix386) && defined (_BSD))
6759 /* The kernel sometimes fails to deliver SIGHUP for ptys.
6760 This looks incorrect, but it isn't, because _BSD causes
6761 O_NDELAY to be defined in fcntl.h as O_NONBLOCK,
6762 and that causes a value other than 0 when there is no input. */
6764 return -2; /* Close this display. */
6768 /* We used to retry the read if it was interrupted.
6769 But this does the wrong thing when O_NDELAY causes
6770 an EAGAIN error. Does anybody know of a situation
6771 where a retry is actually needed? */
6773 nread
< 0 && (errno
== EAGAIN
6787 #if defined (USG) || defined (DGUX) || defined (CYGWIN)
6788 fcntl (fileno (tty
->input
), F_SETFL
, 0);
6789 #endif /* USG or DGUX or CYGWIN */
6790 #endif /* no FIONREAD */
6795 #endif /* not MSDOS */
6796 #endif /* not WINDOWSNT */
6798 for (i
= 0; i
< nread
; i
++)
6800 struct input_event buf
;
6802 buf
.kind
= ASCII_KEYSTROKE_EVENT
;
6804 if (tty
->meta_key
== 1 && (cbuf
[i
] & 0x80))
6805 buf
.modifiers
= meta_modifier
;
6806 if (tty
->meta_key
!= 2)
6810 /* Set the frame corresponding to the active tty. Note that the
6811 value of selected_frame is not reliable here, redisplay tends
6812 to temporarily change it. */
6813 buf
.frame_or_window
= tty
->top_frame
;
6816 kbd_buffer_store_event (&buf
);
6817 /* Don't look at input that follows a C-g too closely.
6818 This reduces lossage due to autorepeat on C-g. */
6819 if (buf
.kind
== ASCII_KEYSTROKE_EVENT
6820 && buf
.code
== quit_char
)
6826 #endif /* not VMS */
6829 handle_async_input ()
6832 extern int select_alarmed
;
6834 interrupt_input_pending
= 0;
6839 nread
= read_avail_input (1);
6840 /* -1 means it's not ok to read the input now.
6841 UNBLOCK_INPUT will read it later; now, avoid infinite loop.
6842 0 means there was no keyboard input available. */
6847 select_alarmed
= 1; /* Force the select emulator back to life */
6852 #ifdef SIGIO /* for entire page */
6853 /* Note SIGIO has been undef'd if FIONREAD is missing. */
6856 input_available_signal (signo
)
6859 /* Must preserve main program's value of errno. */
6860 int old_errno
= errno
;
6862 #if defined (USG) && !defined (POSIX_SIGNALS)
6863 /* USG systems forget handlers when they are used;
6864 must reestablish each time */
6865 signal (signo
, input_available_signal
);
6872 if (input_available_clear_time
)
6873 EMACS_SET_SECS_USECS (*input_available_clear_time
, 0, 0);
6876 interrupt_input_pending
= 1;
6878 handle_async_input ();
6888 /* Send ourselves a SIGIO.
6890 This function exists so that the UNBLOCK_INPUT macro in
6891 blockinput.h can have some way to take care of input we put off
6892 dealing with, without assuming that every file which uses
6893 UNBLOCK_INPUT also has #included the files necessary to get SIGIO. */
6895 reinvoke_input_signal ()
6898 handle_async_input ();
6904 static void menu_bar_item
P_ ((Lisp_Object
, Lisp_Object
, Lisp_Object
, void*));
6905 static Lisp_Object menu_bar_one_keymap_changed_items
;
6907 /* These variables hold the vector under construction within
6908 menu_bar_items and its subroutines, and the current index
6909 for storing into that vector. */
6910 static Lisp_Object menu_bar_items_vector
;
6911 static int menu_bar_items_index
;
6913 /* Return a vector of menu items for a menu bar, appropriate
6914 to the current buffer. Each item has three elements in the vector:
6917 OLD is an old vector we can optionally reuse, or nil. */
6920 menu_bar_items (old
)
6923 /* The number of keymaps we're scanning right now, and the number of
6924 keymaps we have allocated space for. */
6927 /* maps[0..nmaps-1] are the prefix definitions of KEYBUF[0..t-1]
6928 in the current keymaps, or nil where it is not a prefix. */
6931 Lisp_Object def
, tail
;
6940 struct gcpro gcpro1
;
6942 /* In order to build the menus, we need to call the keymap
6943 accessors. They all call QUIT. But this function is called
6944 during redisplay, during which a quit is fatal. So inhibit
6945 quitting while building the menus.
6946 We do this instead of specbind because (1) errors will clear it anyway
6947 and (2) this avoids risk of specpdl overflow. */
6948 oquit
= Vinhibit_quit
;
6952 menu_bar_items_vector
= old
;
6954 menu_bar_items_vector
= Fmake_vector (make_number (24), Qnil
);
6955 menu_bar_items_index
= 0;
6957 GCPRO1 (menu_bar_items_vector
);
6959 /* Build our list of keymaps.
6960 If we recognize a function key and replace its escape sequence in
6961 keybuf with its symbol, or if the sequence starts with a mouse
6962 click and we need to switch buffers, we jump back here to rebuild
6963 the initial keymaps from the current buffer. */
6967 /* Should overriding-terminal-local-map and overriding-local-map apply? */
6968 if (!NILP (Voverriding_local_map_menu_flag
))
6970 /* Yes, use them (if non-nil) as well as the global map. */
6971 maps
= (Lisp_Object
*) alloca (3 * sizeof (maps
[0]));
6973 if (!NILP (current_kboard
->Voverriding_terminal_local_map
))
6974 maps
[nmaps
++] = current_kboard
->Voverriding_terminal_local_map
;
6975 if (!NILP (Voverriding_local_map
))
6976 maps
[nmaps
++] = Voverriding_local_map
;
6980 /* No, so use major and minor mode keymaps and keymap property.
6981 Note that menu-bar bindings in the local-map and keymap
6982 properties may not work reliable, as they are only
6983 recognized when the menu-bar (or mode-line) is updated,
6984 which does not normally happen after every command. */
6987 nminor
= current_minor_maps (NULL
, &tmaps
);
6988 maps
= (Lisp_Object
*) alloca ((nminor
+ 3) * sizeof (maps
[0]));
6990 if (tem
= get_local_map (PT
, current_buffer
, Qkeymap
), !NILP (tem
))
6991 maps
[nmaps
++] = tem
;
6992 bcopy (tmaps
, (void *) (maps
+ nmaps
), nminor
* sizeof (maps
[0]));
6994 maps
[nmaps
++] = get_local_map (PT
, current_buffer
, Qlocal_map
);
6996 maps
[nmaps
++] = current_global_map
;
6999 /* Look up in each map the dummy prefix key `menu-bar'. */
7003 for (mapno
= nmaps
- 1; mapno
>= 0; mapno
--)
7004 if (!NILP (maps
[mapno
]))
7006 def
= get_keymap (access_keymap (maps
[mapno
], Qmenu_bar
, 1, 0, 1),
7010 menu_bar_one_keymap_changed_items
= Qnil
;
7011 map_keymap (def
, menu_bar_item
, Qnil
, NULL
, 1);
7015 /* Move to the end those items that should be at the end. */
7017 for (tail
= Vmenu_bar_final_items
; CONSP (tail
); tail
= XCDR (tail
))
7020 int end
= menu_bar_items_index
;
7022 for (i
= 0; i
< end
; i
+= 4)
7023 if (EQ (XCAR (tail
), XVECTOR (menu_bar_items_vector
)->contents
[i
]))
7025 Lisp_Object tem0
, tem1
, tem2
, tem3
;
7026 /* Move the item at index I to the end,
7027 shifting all the others forward. */
7028 tem0
= XVECTOR (menu_bar_items_vector
)->contents
[i
+ 0];
7029 tem1
= XVECTOR (menu_bar_items_vector
)->contents
[i
+ 1];
7030 tem2
= XVECTOR (menu_bar_items_vector
)->contents
[i
+ 2];
7031 tem3
= XVECTOR (menu_bar_items_vector
)->contents
[i
+ 3];
7033 bcopy (&XVECTOR (menu_bar_items_vector
)->contents
[i
+ 4],
7034 &XVECTOR (menu_bar_items_vector
)->contents
[i
],
7035 (end
- i
- 4) * sizeof (Lisp_Object
));
7036 XVECTOR (menu_bar_items_vector
)->contents
[end
- 4] = tem0
;
7037 XVECTOR (menu_bar_items_vector
)->contents
[end
- 3] = tem1
;
7038 XVECTOR (menu_bar_items_vector
)->contents
[end
- 2] = tem2
;
7039 XVECTOR (menu_bar_items_vector
)->contents
[end
- 1] = tem3
;
7044 /* Add nil, nil, nil, nil at the end. */
7045 i
= menu_bar_items_index
;
7046 if (i
+ 4 > XVECTOR (menu_bar_items_vector
)->size
)
7049 tem
= Fmake_vector (make_number (2 * i
), Qnil
);
7050 bcopy (XVECTOR (menu_bar_items_vector
)->contents
,
7051 XVECTOR (tem
)->contents
, i
* sizeof (Lisp_Object
));
7052 menu_bar_items_vector
= tem
;
7054 /* Add this item. */
7055 XVECTOR (menu_bar_items_vector
)->contents
[i
++] = Qnil
;
7056 XVECTOR (menu_bar_items_vector
)->contents
[i
++] = Qnil
;
7057 XVECTOR (menu_bar_items_vector
)->contents
[i
++] = Qnil
;
7058 XVECTOR (menu_bar_items_vector
)->contents
[i
++] = Qnil
;
7059 menu_bar_items_index
= i
;
7061 Vinhibit_quit
= oquit
;
7063 return menu_bar_items_vector
;
7066 /* Add one item to menu_bar_items_vector, for KEY, ITEM_STRING and DEF.
7067 If there's already an item for KEY, add this DEF to it. */
7069 Lisp_Object item_properties
;
7072 menu_bar_item (key
, item
, dummy1
, dummy2
)
7073 Lisp_Object key
, item
, dummy1
;
7076 struct gcpro gcpro1
;
7080 if (EQ (item
, Qundefined
))
7082 /* If a map has an explicit `undefined' as definition,
7083 discard any previously made menu bar item. */
7085 for (i
= 0; i
< menu_bar_items_index
; i
+= 4)
7086 if (EQ (key
, XVECTOR (menu_bar_items_vector
)->contents
[i
]))
7088 if (menu_bar_items_index
> i
+ 4)
7089 bcopy (&XVECTOR (menu_bar_items_vector
)->contents
[i
+ 4],
7090 &XVECTOR (menu_bar_items_vector
)->contents
[i
],
7091 (menu_bar_items_index
- i
- 4) * sizeof (Lisp_Object
));
7092 menu_bar_items_index
-= 4;
7096 /* If this keymap has already contributed to this KEY,
7097 don't contribute to it a second time. */
7098 tem
= Fmemq (key
, menu_bar_one_keymap_changed_items
);
7099 if (!NILP (tem
) || NILP (item
))
7102 menu_bar_one_keymap_changed_items
7103 = Fcons (key
, menu_bar_one_keymap_changed_items
);
7105 /* We add to menu_bar_one_keymap_changed_items before doing the
7106 parse_menu_item, so that if it turns out it wasn't a menu item,
7107 it still correctly hides any further menu item. */
7109 i
= parse_menu_item (item
, 0, 1);
7114 item
= XVECTOR (item_properties
)->contents
[ITEM_PROPERTY_DEF
];
7116 /* Find any existing item for this KEY. */
7117 for (i
= 0; i
< menu_bar_items_index
; i
+= 4)
7118 if (EQ (key
, XVECTOR (menu_bar_items_vector
)->contents
[i
]))
7121 /* If we did not find this KEY, add it at the end. */
7122 if (i
== menu_bar_items_index
)
7124 /* If vector is too small, get a bigger one. */
7125 if (i
+ 4 > XVECTOR (menu_bar_items_vector
)->size
)
7128 tem
= Fmake_vector (make_number (2 * i
), Qnil
);
7129 bcopy (XVECTOR (menu_bar_items_vector
)->contents
,
7130 XVECTOR (tem
)->contents
, i
* sizeof (Lisp_Object
));
7131 menu_bar_items_vector
= tem
;
7134 /* Add this item. */
7135 XVECTOR (menu_bar_items_vector
)->contents
[i
++] = key
;
7136 XVECTOR (menu_bar_items_vector
)->contents
[i
++]
7137 = XVECTOR (item_properties
)->contents
[ITEM_PROPERTY_NAME
];
7138 XVECTOR (menu_bar_items_vector
)->contents
[i
++] = Fcons (item
, Qnil
);
7139 XVECTOR (menu_bar_items_vector
)->contents
[i
++] = make_number (0);
7140 menu_bar_items_index
= i
;
7142 /* We did find an item for this KEY. Add ITEM to its list of maps. */
7146 old
= XVECTOR (menu_bar_items_vector
)->contents
[i
+ 2];
7147 /* If the new and the old items are not both keymaps,
7148 the lookup will only find `item'. */
7149 item
= Fcons (item
, KEYMAPP (item
) && KEYMAPP (XCAR (old
)) ? old
: Qnil
);
7150 XVECTOR (menu_bar_items_vector
)->contents
[i
+ 2] = item
;
7154 /* This is used as the handler when calling menu_item_eval_property. */
7156 menu_item_eval_property_1 (arg
)
7159 /* If we got a quit from within the menu computation,
7160 quit all the way out of it. This takes care of C-] in the debugger. */
7161 if (CONSP (arg
) && EQ (XCAR (arg
), Qquit
))
7162 Fsignal (Qquit
, Qnil
);
7167 /* Evaluate an expression and return the result (or nil if something
7168 went wrong). Used to evaluate dynamic parts of menu items. */
7170 menu_item_eval_property (sexpr
)
7173 int count
= SPECPDL_INDEX ();
7175 specbind (Qinhibit_redisplay
, Qt
);
7176 val
= internal_condition_case_1 (Feval
, sexpr
, Qerror
,
7177 menu_item_eval_property_1
);
7178 return unbind_to (count
, val
);
7181 /* This function parses a menu item and leaves the result in the
7182 vector item_properties.
7183 ITEM is a key binding, a possible menu item.
7184 If NOTREAL is nonzero, only check for equivalent key bindings, don't
7185 evaluate dynamic expressions in the menu item.
7186 INMENUBAR is > 0 when this is considered for an entry in a menu bar
7188 INMENUBAR is < 0 when this is considered for an entry in a keyboard menu.
7189 parse_menu_item returns true if the item is a menu item and false
7193 parse_menu_item (item
, notreal
, inmenubar
)
7195 int notreal
, inmenubar
;
7197 Lisp_Object def
, tem
, item_string
, start
;
7198 Lisp_Object cachelist
;
7200 Lisp_Object keyhint
;
7211 /* Create item_properties vector if necessary. */
7212 if (NILP (item_properties
))
7214 = Fmake_vector (make_number (ITEM_PROPERTY_ENABLE
+ 1), Qnil
);
7216 /* Initialize optional entries. */
7217 for (i
= ITEM_PROPERTY_DEF
; i
< ITEM_PROPERTY_ENABLE
; i
++)
7218 AREF (item_properties
, i
) = Qnil
;
7219 AREF (item_properties
, ITEM_PROPERTY_ENABLE
) = Qt
;
7221 /* Save the item here to protect it from GC. */
7222 AREF (item_properties
, ITEM_PROPERTY_ITEM
) = item
;
7224 item_string
= XCAR (item
);
7228 if (STRINGP (item_string
))
7230 /* Old format menu item. */
7231 AREF (item_properties
, ITEM_PROPERTY_NAME
) = item_string
;
7233 /* Maybe help string. */
7234 if (CONSP (item
) && STRINGP (XCAR (item
)))
7236 AREF (item_properties
, ITEM_PROPERTY_HELP
) = XCAR (item
);
7241 /* Maybe key binding cache. */
7242 if (CONSP (item
) && CONSP (XCAR (item
))
7243 && (NILP (XCAR (XCAR (item
)))
7244 || VECTORP (XCAR (XCAR (item
)))))
7246 cachelist
= XCAR (item
);
7250 /* This is the real definition--the function to run. */
7251 AREF (item_properties
, ITEM_PROPERTY_DEF
) = item
;
7253 /* Get enable property, if any. */
7256 tem
= Fget (item
, Qmenu_enable
);
7258 AREF (item_properties
, ITEM_PROPERTY_ENABLE
) = tem
;
7261 else if (EQ (item_string
, Qmenu_item
) && CONSP (item
))
7263 /* New format menu item. */
7264 AREF (item_properties
, ITEM_PROPERTY_NAME
) = XCAR (item
);
7265 start
= XCDR (item
);
7268 /* We have a real binding. */
7269 AREF (item_properties
, ITEM_PROPERTY_DEF
) = XCAR (start
);
7271 item
= XCDR (start
);
7272 /* Is there a cache list with key equivalences. */
7273 if (CONSP (item
) && CONSP (XCAR (item
)))
7275 cachelist
= XCAR (item
);
7279 /* Parse properties. */
7280 while (CONSP (item
) && CONSP (XCDR (item
)))
7285 if (EQ (tem
, QCenable
))
7286 AREF (item_properties
, ITEM_PROPERTY_ENABLE
) = XCAR (item
);
7287 else if (EQ (tem
, QCvisible
) && !notreal
)
7289 /* If got a visible property and that evaluates to nil
7290 then ignore this item. */
7291 tem
= menu_item_eval_property (XCAR (item
));
7295 else if (EQ (tem
, QChelp
))
7296 AREF (item_properties
, ITEM_PROPERTY_HELP
) = XCAR (item
);
7297 else if (EQ (tem
, QCfilter
))
7299 else if (EQ (tem
, QCkey_sequence
))
7302 if (NILP (cachelist
)
7303 && (SYMBOLP (tem
) || STRINGP (tem
) || VECTORP (tem
)))
7304 /* Be GC protected. Set keyhint to item instead of tem. */
7307 else if (EQ (tem
, QCkeys
))
7310 if (CONSP (tem
) || (STRINGP (tem
) && NILP (cachelist
)))
7311 AREF (item_properties
, ITEM_PROPERTY_KEYEQ
) = tem
;
7313 else if (EQ (tem
, QCbutton
) && CONSP (XCAR (item
)))
7318 if (EQ (type
, QCtoggle
) || EQ (type
, QCradio
))
7320 AREF (item_properties
, ITEM_PROPERTY_SELECTED
)
7322 AREF (item_properties
, ITEM_PROPERTY_TYPE
)
7329 else if (inmenubar
|| !NILP (start
))
7333 return 0; /* not a menu item */
7335 /* If item string is not a string, evaluate it to get string.
7336 If we don't get a string, skip this item. */
7337 item_string
= AREF (item_properties
, ITEM_PROPERTY_NAME
);
7338 if (!(STRINGP (item_string
) || notreal
))
7340 item_string
= menu_item_eval_property (item_string
);
7341 if (!STRINGP (item_string
))
7343 AREF (item_properties
, ITEM_PROPERTY_NAME
) = item_string
;
7346 /* If got a filter apply it on definition. */
7347 def
= AREF (item_properties
, ITEM_PROPERTY_DEF
);
7350 def
= menu_item_eval_property (list2 (XCAR (filter
),
7351 list2 (Qquote
, def
)));
7353 AREF (item_properties
, ITEM_PROPERTY_DEF
) = def
;
7356 /* Enable or disable selection of item. */
7357 tem
= AREF (item_properties
, ITEM_PROPERTY_ENABLE
);
7363 tem
= menu_item_eval_property (tem
);
7364 if (inmenubar
&& NILP (tem
))
7365 return 0; /* Ignore disabled items in menu bar. */
7366 AREF (item_properties
, ITEM_PROPERTY_ENABLE
) = tem
;
7369 /* If we got no definition, this item is just unselectable text which
7370 is OK in a submenu but not in the menubar. */
7372 return (inmenubar
? 0 : 1);
7374 /* See if this is a separate pane or a submenu. */
7375 def
= AREF (item_properties
, ITEM_PROPERTY_DEF
);
7376 tem
= get_keymap (def
, 0, 1);
7377 /* For a subkeymap, just record its details and exit. */
7380 AREF (item_properties
, ITEM_PROPERTY_MAP
) = tem
;
7381 AREF (item_properties
, ITEM_PROPERTY_DEF
) = tem
;
7385 /* At the top level in the menu bar, do likewise for commands also.
7386 The menu bar does not display equivalent key bindings anyway.
7387 ITEM_PROPERTY_DEF is already set up properly. */
7391 /* This is a command. See if there is an equivalent key binding. */
7392 if (NILP (cachelist
))
7394 /* We have to create a cachelist. */
7395 CHECK_IMPURE (start
);
7396 XSETCDR (start
, Fcons (Fcons (Qnil
, Qnil
), XCDR (start
)));
7397 cachelist
= XCAR (XCDR (start
));
7399 tem
= AREF (item_properties
, ITEM_PROPERTY_KEYEQ
);
7400 if (!NILP (keyhint
))
7402 XSETCAR (cachelist
, XCAR (keyhint
));
7405 else if (STRINGP (tem
))
7407 XSETCDR (cachelist
, Fsubstitute_command_keys (tem
));
7408 XSETCAR (cachelist
, Qt
);
7412 tem
= XCAR (cachelist
);
7419 tem
= Fkey_binding (tem
, Qnil
, Qnil
);
7421 prefix
= AREF (item_properties
, ITEM_PROPERTY_KEYEQ
);
7424 def
= XCAR (prefix
);
7425 prefix
= XCDR (prefix
);
7428 def
= AREF (item_properties
, ITEM_PROPERTY_DEF
);
7430 if (!update_menu_bindings
)
7432 else if (NILP (XCAR (cachelist
))) /* Have no saved key. */
7434 if (newcache
/* Always check first time. */
7435 /* Should we check everything when precomputing key
7437 /* If something had no key binding before, don't recheck it
7438 because that is too slow--except if we have a list of
7439 rebound commands in Vdefine_key_rebound_commands, do
7440 recheck any command that appears in that list. */
7441 || (CONSP (Vdefine_key_rebound_commands
)
7442 && !NILP (Fmemq (def
, Vdefine_key_rebound_commands
))))
7445 /* We had a saved key. Is it still bound to the command? */
7448 /* If the command is an alias for another
7449 (such as lmenu.el set it up), check if the
7450 original command matches the cached command. */
7451 && !(SYMBOLP (def
) && EQ (tem
, XSYMBOL (def
)->function
))))
7452 chkcache
= 1; /* Need to recompute key binding. */
7456 /* Recompute equivalent key binding. If the command is an alias
7457 for another (such as lmenu.el set it up), see if the original
7458 command name has equivalent keys. Otherwise look up the
7459 specified command itself. We don't try both, because that
7460 makes lmenu menus slow. */
7462 && SYMBOLP (XSYMBOL (def
)->function
)
7463 && ! NILP (Fget (def
, Qmenu_alias
)))
7464 def
= XSYMBOL (def
)->function
;
7465 tem
= Fwhere_is_internal (def
, Qnil
, Qt
, Qnil
, Qt
);
7466 XSETCAR (cachelist
, tem
);
7469 XSETCDR (cachelist
, Qnil
);
7473 else if (!NILP (keyhint
) && !NILP (XCAR (cachelist
)))
7475 tem
= XCAR (cachelist
);
7479 newcache
= chkcache
;
7482 tem
= Fkey_description (tem
, Qnil
);
7485 if (STRINGP (XCAR (prefix
)))
7486 tem
= concat2 (XCAR (prefix
), tem
);
7487 if (STRINGP (XCDR (prefix
)))
7488 tem
= concat2 (tem
, XCDR (prefix
));
7490 XSETCDR (cachelist
, tem
);
7494 tem
= XCDR (cachelist
);
7495 if (newcache
&& !NILP (tem
))
7497 tem
= concat3 (build_string (" ("), tem
, build_string (")"));
7498 XSETCDR (cachelist
, tem
);
7501 /* If we only want to precompute equivalent key bindings, stop here. */
7505 /* If we have an equivalent key binding, use that. */
7506 AREF (item_properties
, ITEM_PROPERTY_KEYEQ
) = tem
;
7508 /* Include this when menu help is implemented.
7509 tem = XVECTOR (item_properties)->contents[ITEM_PROPERTY_HELP];
7510 if (!(NILP (tem) || STRINGP (tem)))
7512 tem = menu_item_eval_property (tem);
7515 XVECTOR (item_properties)->contents[ITEM_PROPERTY_HELP] = tem;
7519 /* Handle radio buttons or toggle boxes. */
7520 tem
= AREF (item_properties
, ITEM_PROPERTY_SELECTED
);
7522 AREF (item_properties
, ITEM_PROPERTY_SELECTED
)
7523 = menu_item_eval_property (tem
);
7530 /***********************************************************************
7532 ***********************************************************************/
7534 /* A vector holding tool bar items while they are parsed in function
7535 tool_bar_items. Each item occupies TOOL_BAR_ITEM_NSCLOTS elements
7538 static Lisp_Object tool_bar_items_vector
;
7540 /* A vector holding the result of parse_tool_bar_item. Layout is like
7541 the one for a single item in tool_bar_items_vector. */
7543 static Lisp_Object tool_bar_item_properties
;
7545 /* Next free index in tool_bar_items_vector. */
7547 static int ntool_bar_items
;
7549 /* The symbols `tool-bar', and `:image'. */
7551 extern Lisp_Object Qtool_bar
;
7552 Lisp_Object QCimage
;
7554 /* Function prototypes. */
7556 static void init_tool_bar_items
P_ ((Lisp_Object
));
7557 static void process_tool_bar_item
P_ ((Lisp_Object
, Lisp_Object
));
7558 static int parse_tool_bar_item
P_ ((Lisp_Object
, Lisp_Object
));
7559 static void append_tool_bar_item
P_ ((void));
7562 /* Return a vector of tool bar items for keymaps currently in effect.
7563 Reuse vector REUSE if non-nil. Return in *NITEMS the number of
7564 tool bar items found. */
7567 tool_bar_items (reuse
, nitems
)
7578 /* In order to build the menus, we need to call the keymap
7579 accessors. They all call QUIT. But this function is called
7580 during redisplay, during which a quit is fatal. So inhibit
7581 quitting while building the menus. We do this instead of
7582 specbind because (1) errors will clear it anyway and (2) this
7583 avoids risk of specpdl overflow. */
7584 oquit
= Vinhibit_quit
;
7587 /* Initialize tool_bar_items_vector and protect it from GC. */
7588 init_tool_bar_items (reuse
);
7590 /* Build list of keymaps in maps. Set nmaps to the number of maps
7593 /* Should overriding-terminal-local-map and overriding-local-map apply? */
7594 if (!NILP (Voverriding_local_map_menu_flag
))
7596 /* Yes, use them (if non-nil) as well as the global map. */
7597 maps
= (Lisp_Object
*) alloca (3 * sizeof (maps
[0]));
7599 if (!NILP (current_kboard
->Voverriding_terminal_local_map
))
7600 maps
[nmaps
++] = current_kboard
->Voverriding_terminal_local_map
;
7601 if (!NILP (Voverriding_local_map
))
7602 maps
[nmaps
++] = Voverriding_local_map
;
7606 /* No, so use major and minor mode keymaps and keymap property.
7607 Note that tool-bar bindings in the local-map and keymap
7608 properties may not work reliable, as they are only
7609 recognized when the tool-bar (or mode-line) is updated,
7610 which does not normally happen after every command. */
7613 nminor
= current_minor_maps (NULL
, &tmaps
);
7614 maps
= (Lisp_Object
*) alloca ((nminor
+ 3) * sizeof (maps
[0]));
7616 if (tem
= get_local_map (PT
, current_buffer
, Qkeymap
), !NILP (tem
))
7617 maps
[nmaps
++] = tem
;
7618 bcopy (tmaps
, (void *) (maps
+ nmaps
), nminor
* sizeof (maps
[0]));
7620 maps
[nmaps
++] = get_local_map (PT
, current_buffer
, Qlocal_map
);
7623 /* Add global keymap at the end. */
7624 maps
[nmaps
++] = current_global_map
;
7626 /* Process maps in reverse order and look up in each map the prefix
7628 for (i
= nmaps
- 1; i
>= 0; --i
)
7629 if (!NILP (maps
[i
]))
7633 keymap
= get_keymap (access_keymap (maps
[i
], Qtool_bar
, 1, 0, 1), 0, 1);
7638 /* KEYMAP is a list `(keymap (KEY . BINDING) ...)'. */
7639 for (tail
= keymap
; CONSP (tail
); tail
= XCDR (tail
))
7641 Lisp_Object keydef
= XCAR (tail
);
7643 process_tool_bar_item (XCAR (keydef
), XCDR (keydef
));
7648 Vinhibit_quit
= oquit
;
7649 *nitems
= ntool_bar_items
/ TOOL_BAR_ITEM_NSLOTS
;
7650 return tool_bar_items_vector
;
7654 /* Process the definition of KEY which is DEF. */
7657 process_tool_bar_item (key
, def
)
7658 Lisp_Object key
, def
;
7661 extern Lisp_Object Qundefined
;
7662 struct gcpro gcpro1
, gcpro2
;
7664 /* Protect KEY and DEF from GC because parse_tool_bar_item may call
7668 if (EQ (def
, Qundefined
))
7670 /* If a map has an explicit `undefined' as definition,
7671 discard any previously made item. */
7672 for (i
= 0; i
< ntool_bar_items
; i
+= TOOL_BAR_ITEM_NSLOTS
)
7674 Lisp_Object
*v
= XVECTOR (tool_bar_items_vector
)->contents
+ i
;
7676 if (EQ (key
, v
[TOOL_BAR_ITEM_KEY
]))
7678 if (ntool_bar_items
> i
+ TOOL_BAR_ITEM_NSLOTS
)
7679 bcopy (v
+ TOOL_BAR_ITEM_NSLOTS
, v
,
7680 ((ntool_bar_items
- i
- TOOL_BAR_ITEM_NSLOTS
)
7681 * sizeof (Lisp_Object
)));
7682 ntool_bar_items
-= TOOL_BAR_ITEM_NSLOTS
;
7687 else if (parse_tool_bar_item (key
, def
))
7688 /* Append a new tool bar item to tool_bar_items_vector. Accept
7689 more than one definition for the same key. */
7690 append_tool_bar_item ();
7696 /* Parse a tool bar item specification ITEM for key KEY and return the
7697 result in tool_bar_item_properties. Value is zero if ITEM is
7700 ITEM is a list `(menu-item CAPTION BINDING PROPS...)'.
7702 CAPTION is the caption of the item, If it's not a string, it is
7703 evaluated to get a string.
7705 BINDING is the tool bar item's binding. Tool-bar items with keymaps
7706 as binding are currently ignored.
7708 The following properties are recognized:
7712 FORM is evaluated and specifies whether the tool bar item is
7713 enabled or disabled.
7717 FORM is evaluated and specifies whether the tool bar item is visible.
7719 - `:filter FUNCTION'
7721 FUNCTION is invoked with one parameter `(quote BINDING)'. Its
7722 result is stored as the new binding.
7724 - `:button (TYPE SELECTED)'
7726 TYPE must be one of `:radio' or `:toggle'. SELECTED is evaluated
7727 and specifies whether the button is selected (pressed) or not.
7731 IMAGES is either a single image specification or a vector of four
7732 image specifications. See enum tool_bar_item_images.
7734 - `:help HELP-STRING'.
7736 Gives a help string to display for the tool bar item. */
7739 parse_tool_bar_item (key
, item
)
7740 Lisp_Object key
, item
;
7742 /* Access slot with index IDX of vector tool_bar_item_properties. */
7743 #define PROP(IDX) XVECTOR (tool_bar_item_properties)->contents[IDX]
7745 Lisp_Object filter
= Qnil
;
7746 Lisp_Object caption
;
7749 /* Defininition looks like `(menu-item CAPTION BINDING PROPS...)'.
7750 Rule out items that aren't lists, don't start with
7751 `menu-item' or whose rest following `tool-bar-item' is not a
7754 || !EQ (XCAR (item
), Qmenu_item
)
7755 || (item
= XCDR (item
),
7759 /* Create tool_bar_item_properties vector if necessary. Reset it to
7761 if (VECTORP (tool_bar_item_properties
))
7763 for (i
= 0; i
< TOOL_BAR_ITEM_NSLOTS
; ++i
)
7767 tool_bar_item_properties
7768 = Fmake_vector (make_number (TOOL_BAR_ITEM_NSLOTS
), Qnil
);
7771 PROP (TOOL_BAR_ITEM_KEY
) = key
;
7772 PROP (TOOL_BAR_ITEM_ENABLED_P
) = Qt
;
7774 /* Get the caption of the item. If the caption is not a string,
7775 evaluate it to get a string. If we don't get a string, skip this
7777 caption
= XCAR (item
);
7778 if (!STRINGP (caption
))
7780 caption
= menu_item_eval_property (caption
);
7781 if (!STRINGP (caption
))
7784 PROP (TOOL_BAR_ITEM_CAPTION
) = caption
;
7786 /* Give up if rest following the caption is not a list. */
7791 /* Store the binding. */
7792 PROP (TOOL_BAR_ITEM_BINDING
) = XCAR (item
);
7795 /* Ignore cached key binding, if any. */
7796 if (CONSP (item
) && CONSP (XCAR (item
)))
7799 /* Process the rest of the properties. */
7800 for (; CONSP (item
) && CONSP (XCDR (item
)); item
= XCDR (XCDR (item
)))
7802 Lisp_Object key
, value
;
7805 value
= XCAR (XCDR (item
));
7807 if (EQ (key
, QCenable
))
7808 /* `:enable FORM'. */
7809 PROP (TOOL_BAR_ITEM_ENABLED_P
) = value
;
7810 else if (EQ (key
, QCvisible
))
7812 /* `:visible FORM'. If got a visible property and that
7813 evaluates to nil then ignore this item. */
7814 if (NILP (menu_item_eval_property (value
)))
7817 else if (EQ (key
, QChelp
))
7818 /* `:help HELP-STRING'. */
7819 PROP (TOOL_BAR_ITEM_HELP
) = value
;
7820 else if (EQ (key
, QCfilter
))
7821 /* ':filter FORM'. */
7823 else if (EQ (key
, QCbutton
) && CONSP (value
))
7825 /* `:button (TYPE . SELECTED)'. */
7826 Lisp_Object type
, selected
;
7828 type
= XCAR (value
);
7829 selected
= XCDR (value
);
7830 if (EQ (type
, QCtoggle
) || EQ (type
, QCradio
))
7832 PROP (TOOL_BAR_ITEM_SELECTED_P
) = selected
;
7833 PROP (TOOL_BAR_ITEM_TYPE
) = type
;
7836 else if (EQ (key
, QCimage
)
7838 || (VECTORP (value
) && XVECTOR (value
)->size
== 4)))
7839 /* Value is either a single image specification or a vector
7840 of 4 such specifications for the different button states. */
7841 PROP (TOOL_BAR_ITEM_IMAGES
) = value
;
7844 /* If got a filter apply it on binding. */
7846 PROP (TOOL_BAR_ITEM_BINDING
)
7847 = menu_item_eval_property (list2 (filter
,
7849 PROP (TOOL_BAR_ITEM_BINDING
))));
7851 /* See if the binding is a keymap. Give up if it is. */
7852 if (CONSP (get_keymap (PROP (TOOL_BAR_ITEM_BINDING
), 0, 1)))
7855 /* Enable or disable selection of item. */
7856 if (!EQ (PROP (TOOL_BAR_ITEM_ENABLED_P
), Qt
))
7857 PROP (TOOL_BAR_ITEM_ENABLED_P
)
7858 = menu_item_eval_property (PROP (TOOL_BAR_ITEM_ENABLED_P
));
7860 /* Handle radio buttons or toggle boxes. */
7861 if (!NILP (PROP (TOOL_BAR_ITEM_SELECTED_P
)))
7862 PROP (TOOL_BAR_ITEM_SELECTED_P
)
7863 = menu_item_eval_property (PROP (TOOL_BAR_ITEM_SELECTED_P
));
7871 /* Initialize tool_bar_items_vector. REUSE, if non-nil, is a vector
7872 that can be reused. */
7875 init_tool_bar_items (reuse
)
7878 if (VECTORP (reuse
))
7879 tool_bar_items_vector
= reuse
;
7881 tool_bar_items_vector
= Fmake_vector (make_number (64), Qnil
);
7882 ntool_bar_items
= 0;
7886 /* Append parsed tool bar item properties from
7887 tool_bar_item_properties */
7890 append_tool_bar_item ()
7892 Lisp_Object
*to
, *from
;
7894 /* Enlarge tool_bar_items_vector if necessary. */
7895 if (ntool_bar_items
+ TOOL_BAR_ITEM_NSLOTS
7896 >= XVECTOR (tool_bar_items_vector
)->size
)
7898 Lisp_Object new_vector
;
7899 int old_size
= XVECTOR (tool_bar_items_vector
)->size
;
7901 new_vector
= Fmake_vector (make_number (2 * old_size
), Qnil
);
7902 bcopy (XVECTOR (tool_bar_items_vector
)->contents
,
7903 XVECTOR (new_vector
)->contents
,
7904 old_size
* sizeof (Lisp_Object
));
7905 tool_bar_items_vector
= new_vector
;
7908 /* Append entries from tool_bar_item_properties to the end of
7909 tool_bar_items_vector. */
7910 to
= XVECTOR (tool_bar_items_vector
)->contents
+ ntool_bar_items
;
7911 from
= XVECTOR (tool_bar_item_properties
)->contents
;
7912 bcopy (from
, to
, TOOL_BAR_ITEM_NSLOTS
* sizeof *to
);
7913 ntool_bar_items
+= TOOL_BAR_ITEM_NSLOTS
;
7920 /* Read a character using menus based on maps in the array MAPS.
7921 NMAPS is the length of MAPS. Return nil if there are no menus in the maps.
7922 Return t if we displayed a menu but the user rejected it.
7924 PREV_EVENT is the previous input event, or nil if we are reading
7925 the first event of a key sequence.
7927 If USED_MOUSE_MENU is non-null, then we set *USED_MOUSE_MENU to 1
7928 if we used a mouse menu to read the input, or zero otherwise. If
7929 USED_MOUSE_MENU is null, we don't dereference it.
7931 The prompting is done based on the prompt-string of the map
7932 and the strings associated with various map elements.
7934 This can be done with X menus or with menus put in the minibuf.
7935 These are done in different ways, depending on how the input will be read.
7936 Menus using X are done after auto-saving in read-char, getting the input
7937 event from Fx_popup_menu; menus using the minibuf use read_char recursively
7938 and do auto-saving in the inner call of read_char. */
7941 read_char_x_menu_prompt (nmaps
, maps
, prev_event
, used_mouse_menu
)
7944 Lisp_Object prev_event
;
7945 int *used_mouse_menu
;
7948 register Lisp_Object name
= Qnil
;
7950 if (used_mouse_menu
)
7951 *used_mouse_menu
= 0;
7953 /* Use local over global Menu maps */
7955 if (! menu_prompting
)
7958 /* Optionally disregard all but the global map. */
7959 if (inhibit_local_menu_bar_menus
)
7961 maps
+= (nmaps
- 1);
7965 /* Get the menu name from the first map that has one (a prompt string). */
7966 for (mapno
= 0; mapno
< nmaps
; mapno
++)
7968 name
= Fkeymap_prompt (maps
[mapno
]);
7973 /* If we don't have any menus, just read a character normally. */
7974 if (!STRINGP (name
))
7978 /* If we got to this point via a mouse click,
7979 use a real menu for mouse selection. */
7980 if (EVENT_HAS_PARAMETERS (prev_event
)
7981 && !EQ (XCAR (prev_event
), Qmenu_bar
)
7982 && !EQ (XCAR (prev_event
), Qtool_bar
))
7984 /* Display the menu and get the selection. */
7985 Lisp_Object
*realmaps
7986 = (Lisp_Object
*) alloca (nmaps
* sizeof (Lisp_Object
));
7990 /* Use the maps that are not nil. */
7991 for (mapno
= 0; mapno
< nmaps
; mapno
++)
7992 if (!NILP (maps
[mapno
]))
7993 realmaps
[nmaps1
++] = maps
[mapno
];
7995 value
= Fx_popup_menu (prev_event
, Flist (nmaps1
, realmaps
));
8000 record_menu_key (XCAR (value
));
8002 /* If we got multiple events, unread all but
8004 There is no way to prevent those unread events
8005 from showing up later in last_nonmenu_event.
8006 So turn symbol and integer events into lists,
8007 to indicate that they came from a mouse menu,
8008 so that when present in last_nonmenu_event
8009 they won't confuse things. */
8010 for (tem
= XCDR (value
); !NILP (tem
); tem
= XCDR (tem
))
8012 record_menu_key (XCAR (tem
));
8013 if (SYMBOLP (XCAR (tem
))
8014 || INTEGERP (XCAR (tem
)))
8015 XSETCAR (tem
, Fcons (XCAR (tem
), Qdisabled
));
8018 /* If we got more than one event, put all but the first
8019 onto this list to be read later.
8020 Return just the first event now. */
8021 Vunread_command_events
8022 = nconc2 (XCDR (value
), Vunread_command_events
);
8023 value
= XCAR (value
);
8025 else if (NILP (value
))
8027 if (used_mouse_menu
)
8028 *used_mouse_menu
= 1;
8031 #endif /* HAVE_MENUS */
8035 /* Buffer in use so far for the minibuf prompts for menu keymaps.
8036 We make this bigger when necessary, and never free it. */
8037 static char *read_char_minibuf_menu_text
;
8038 /* Size of that buffer. */
8039 static int read_char_minibuf_menu_width
;
8042 read_char_minibuf_menu_prompt (commandflag
, nmaps
, maps
)
8048 register Lisp_Object name
;
8050 /* FIXME: Use the minibuffer's frame width. */
8051 int width
= FRAME_COLS (SELECTED_FRAME ()) - 4;
8054 Lisp_Object rest
, vector
;
8060 if (! menu_prompting
)
8063 /* Make sure we have a big enough buffer for the menu text. */
8064 if (read_char_minibuf_menu_text
== 0)
8066 read_char_minibuf_menu_width
= width
+ 4;
8067 read_char_minibuf_menu_text
= (char *) xmalloc (width
+ 4);
8069 else if (width
+ 4 > read_char_minibuf_menu_width
)
8071 read_char_minibuf_menu_width
= width
+ 4;
8072 read_char_minibuf_menu_text
8073 = (char *) xrealloc (read_char_minibuf_menu_text
, width
+ 4);
8075 menu
= read_char_minibuf_menu_text
;
8077 /* Get the menu name from the first map that has one (a prompt string). */
8078 for (mapno
= 0; mapno
< nmaps
; mapno
++)
8080 name
= Fkeymap_prompt (maps
[mapno
]);
8085 /* If we don't have any menus, just read a character normally. */
8086 if (!STRINGP (name
))
8089 /* Prompt string always starts with map's prompt, and a space. */
8090 strcpy (menu
, SDATA (name
));
8091 nlength
= SBYTES (name
);
8092 menu
[nlength
++] = ':';
8093 menu
[nlength
++] = ' ';
8096 /* Start prompting at start of first map. */
8100 /* Present the documented bindings, a line at a time. */
8107 Lisp_Object orig_defn_macro
;
8109 /* Loop over elements of map. */
8114 /* If reached end of map, start at beginning of next map. */
8118 /* At end of last map, wrap around to first map if just starting,
8119 or end this line if already have something on it. */
8123 if (notfirst
|| nobindings
) break;
8128 /* Look at the next element of the map. */
8130 elt
= XVECTOR (vector
)->contents
[idx
];
8132 elt
= Fcar_safe (rest
);
8134 if (idx
< 0 && VECTORP (elt
))
8136 /* If we found a dense table in the keymap,
8137 advanced past it, but start scanning its contents. */
8138 rest
= Fcdr_safe (rest
);
8144 /* An ordinary element. */
8145 Lisp_Object event
, tem
;
8149 event
= Fcar_safe (elt
); /* alist */
8150 elt
= Fcdr_safe (elt
);
8154 XSETINT (event
, idx
); /* vector */
8157 /* Ignore the element if it has no prompt string. */
8158 if (INTEGERP (event
) && parse_menu_item (elt
, 0, -1))
8160 /* 1 if the char to type matches the string. */
8162 Lisp_Object upcased_event
, downcased_event
;
8163 Lisp_Object desc
= Qnil
;
8165 = XVECTOR (item_properties
)->contents
[ITEM_PROPERTY_NAME
];
8167 upcased_event
= Fupcase (event
);
8168 downcased_event
= Fdowncase (event
);
8169 char_matches
= (XINT (upcased_event
) == SREF (s
, 0)
8170 || XINT (downcased_event
) == SREF (s
, 0));
8172 desc
= Fsingle_key_description (event
, Qnil
);
8174 #if 0 /* It is redundant to list the equivalent key bindings because
8175 the prefix is what the user has already typed. */
8177 = XVECTOR (item_properties
)->contents
[ITEM_PROPERTY_KEYEQ
];
8179 /* Insert equivalent keybinding. */
8180 s
= concat2 (s
, tem
);
8183 = XVECTOR (item_properties
)->contents
[ITEM_PROPERTY_TYPE
];
8184 if (EQ (tem
, QCradio
) || EQ (tem
, QCtoggle
))
8186 /* Insert button prefix. */
8187 Lisp_Object selected
8188 = XVECTOR (item_properties
)->contents
[ITEM_PROPERTY_SELECTED
];
8189 if (EQ (tem
, QCradio
))
8190 tem
= build_string (NILP (selected
) ? "(*) " : "( ) ");
8192 tem
= build_string (NILP (selected
) ? "[X] " : "[ ] ");
8193 s
= concat2 (tem
, s
);
8197 /* If we have room for the prompt string, add it to this line.
8198 If this is the first on the line, always add it. */
8199 if ((SCHARS (s
) + i
+ 2
8200 + (char_matches
? 0 : SCHARS (desc
) + 3))
8206 /* Punctuate between strings. */
8209 strcpy (menu
+ i
, ", ");
8215 /* If the char to type doesn't match the string's
8216 first char, explicitly show what char to type. */
8219 /* Add as much of string as fits. */
8220 thiswidth
= SCHARS (desc
);
8221 if (thiswidth
+ i
> width
)
8222 thiswidth
= width
- i
;
8223 bcopy (SDATA (desc
), menu
+ i
, thiswidth
);
8225 strcpy (menu
+ i
, " = ");
8229 /* Add as much of string as fits. */
8230 thiswidth
= SCHARS (s
);
8231 if (thiswidth
+ i
> width
)
8232 thiswidth
= width
- i
;
8233 bcopy (SDATA (s
), menu
+ i
, thiswidth
);
8239 /* If this element does not fit, end the line now,
8240 and save the element for the next line. */
8241 strcpy (menu
+ i
, "...");
8246 /* Move past this element. */
8247 if (idx
>= 0 && idx
+ 1 >= XVECTOR (vector
)->size
)
8248 /* Handle reaching end of dense table. */
8253 rest
= Fcdr_safe (rest
);
8257 /* Prompt with that and read response. */
8258 message2_nolog (menu
, strlen (menu
),
8259 ! NILP (current_buffer
->enable_multibyte_characters
));
8261 /* Make believe its not a keyboard macro in case the help char
8262 is pressed. Help characters are not recorded because menu prompting
8263 is not used on replay.
8265 orig_defn_macro
= current_kboard
->defining_kbd_macro
;
8266 current_kboard
->defining_kbd_macro
= Qnil
;
8268 obj
= read_char (commandflag
, 0, 0, Qt
, 0);
8269 while (BUFFERP (obj
));
8270 current_kboard
->defining_kbd_macro
= orig_defn_macro
;
8272 if (!INTEGERP (obj
))
8277 if (! EQ (obj
, menu_prompt_more_char
)
8278 && (!INTEGERP (menu_prompt_more_char
)
8279 || ! EQ (obj
, make_number (Ctl (XINT (menu_prompt_more_char
))))))
8281 if (!NILP (current_kboard
->defining_kbd_macro
))
8282 store_kbd_macro_char (obj
);
8285 /* Help char - go round again */
8289 /* Reading key sequences. */
8291 /* Follow KEY in the maps in CURRENT[0..NMAPS-1], placing its bindings
8292 in DEFS[0..NMAPS-1]. Set NEXT[i] to DEFS[i] if DEFS[i] is a
8293 keymap, or nil otherwise. Return the index of the first keymap in
8294 which KEY has any binding, or NMAPS if no map has a binding.
8296 If KEY is a meta ASCII character, treat it like meta-prefix-char
8297 followed by the corresponding non-meta character. Keymaps in
8298 CURRENT with non-prefix bindings for meta-prefix-char become nil in
8301 If KEY has no bindings in any of the CURRENT maps, NEXT is left
8304 NEXT may be the same array as CURRENT. */
8307 follow_key (key
, nmaps
, current
, defs
, next
)
8309 Lisp_Object
*current
, *defs
, *next
;
8312 int i
, first_binding
;
8314 first_binding
= nmaps
;
8315 for (i
= nmaps
- 1; i
>= 0; i
--)
8317 if (! NILP (current
[i
]))
8319 defs
[i
] = access_keymap (current
[i
], key
, 1, 0, 1);
8320 if (! NILP (defs
[i
]))
8327 /* Given the set of bindings we've found, produce the next set of maps. */
8328 if (first_binding
< nmaps
)
8329 for (i
= 0; i
< nmaps
; i
++)
8330 next
[i
] = NILP (defs
[i
]) ? Qnil
: get_keymap (defs
[i
], 0, 1);
8332 return first_binding
;
8335 /* Structure used to keep track of partial application of key remapping
8336 such as Vfunction_key_map and Vkey_translation_map. */
8337 typedef struct keyremap
8339 Lisp_Object map
, parent
;
8343 /* Lookup KEY in MAP.
8344 MAP is a keymap mapping keys to key vectors or functions.
8345 If the mapping is a function and DO_FUNCTION is non-zero, then
8346 the function is called with PROMPT as parameter and its return
8347 value is used as the return value of this function (after checking
8348 that it is indeed a vector). */
8351 access_keymap_keyremap (map
, key
, prompt
, do_funcall
)
8352 Lisp_Object map
, key
, prompt
;
8357 next
= access_keymap (map
, key
, 1, 0, 1);
8359 /* Handle symbol with autoload definition. */
8360 if (SYMBOLP (next
) && !NILP (Ffboundp (next
))
8361 && CONSP (XSYMBOL (next
)->function
)
8362 && EQ (XCAR (XSYMBOL (next
)->function
), Qautoload
))
8363 do_autoload (XSYMBOL (next
)->function
, next
);
8365 /* Handle a symbol whose function definition is a keymap
8367 if (SYMBOLP (next
) && !NILP (Ffboundp (next
))
8368 && (!NILP (Farrayp (XSYMBOL (next
)->function
))
8369 || KEYMAPP (XSYMBOL (next
)->function
)))
8370 next
= XSYMBOL (next
)->function
;
8372 /* If the keymap gives a function, not an
8373 array, then call the function with one arg and use
8374 its value instead. */
8375 if (SYMBOLP (next
) && !NILP (Ffboundp (next
)) && do_funcall
)
8380 next
= call1 (next
, prompt
);
8381 /* If the function returned something invalid,
8382 barf--don't ignore it.
8383 (To ignore it safely, we would need to gcpro a bunch of
8384 other variables.) */
8385 if (! (VECTORP (next
) || STRINGP (next
)))
8386 error ("Function %s returns invalid key sequence", tem
);
8391 /* Do one step of the key remapping used for function-key-map and
8392 key-translation-map:
8393 KEYBUF is the buffer holding the input events.
8394 BUFSIZE is its maximum size.
8395 FKEY is a pointer to the keyremap structure to use.
8396 INPUT is the index of the last element in KEYBUF.
8397 DOIT if non-zero says that the remapping can actually take place.
8398 DIFF is used to return the number of keys added/removed by the remapping.
8399 PARENT is the root of the keymap.
8400 PROMPT is the prompt to use if the remapping happens through a function.
8401 The return value is non-zero if the remapping actually took place. */
8404 keyremap_step (keybuf
, bufsize
, fkey
, input
, doit
, diff
, prompt
)
8405 Lisp_Object
*keybuf
, prompt
;
8407 int input
, doit
, *diff
, bufsize
;
8409 Lisp_Object next
, key
;
8411 key
= keybuf
[fkey
->end
++];
8412 next
= access_keymap_keyremap (fkey
->map
, key
, prompt
, doit
);
8414 /* If keybuf[fkey->start..fkey->end] is bound in the
8415 map and we're in a position to do the key remapping, replace it with
8416 the binding and restart with fkey->start at the end. */
8417 if ((VECTORP (next
) || STRINGP (next
)) && doit
)
8419 int len
= XFASTINT (Flength (next
));
8422 *diff
= len
- (fkey
->end
- fkey
->start
);
8424 if (input
+ *diff
>= bufsize
)
8425 error ("Key sequence too long");
8427 /* Shift the keys that follow fkey->end. */
8429 for (i
= fkey
->end
; i
< input
; i
++)
8430 keybuf
[i
+ *diff
] = keybuf
[i
];
8432 for (i
= input
- 1; i
>= fkey
->end
; i
--)
8433 keybuf
[i
+ *diff
] = keybuf
[i
];
8434 /* Overwrite the old keys with the new ones. */
8435 for (i
= 0; i
< len
; i
++)
8436 keybuf
[fkey
->start
+ i
]
8437 = Faref (next
, make_number (i
));
8439 fkey
->start
= fkey
->end
+= *diff
;
8440 fkey
->map
= fkey
->parent
;
8445 fkey
->map
= get_keymap (next
, 0, 1);
8447 /* If we no longer have a bound suffix, try a new position for
8449 if (!CONSP (fkey
->map
))
8451 fkey
->end
= ++fkey
->start
;
8452 fkey
->map
= fkey
->parent
;
8457 /* Read a sequence of keys that ends with a non prefix character,
8458 storing it in KEYBUF, a buffer of size BUFSIZE.
8460 Return the length of the key sequence stored.
8461 Return -1 if the user rejected a command menu.
8463 Echo starting immediately unless `prompt' is 0.
8465 Where a key sequence ends depends on the currently active keymaps.
8466 These include any minor mode keymaps active in the current buffer,
8467 the current buffer's local map, and the global map.
8469 If a key sequence has no other bindings, we check Vfunction_key_map
8470 to see if some trailing subsequence might be the beginning of a
8471 function key's sequence. If so, we try to read the whole function
8472 key, and substitute its symbolic name into the key sequence.
8474 We ignore unbound `down-' mouse clicks. We turn unbound `drag-' and
8475 `double-' events into similar click events, if that would make them
8476 bound. We try to turn `triple-' events first into `double-' events,
8479 If we get a mouse click in a mode line, vertical divider, or other
8480 non-text area, we treat the click as if it were prefixed by the
8481 symbol denoting that area - `mode-line', `vertical-line', or
8484 If the sequence starts with a mouse click, we read the key sequence
8485 with respect to the buffer clicked on, not the current buffer.
8487 If the user switches frames in the midst of a key sequence, we put
8488 off the switch-frame event until later; the next call to
8489 read_char will return it.
8491 If FIX_CURRENT_BUFFER is nonzero, we restore current_buffer
8492 from the selected window's buffer. */
8495 read_key_sequence (keybuf
, bufsize
, prompt
, dont_downcase_last
,
8496 can_return_switch_frame
, fix_current_buffer
)
8497 Lisp_Object
*keybuf
;
8500 int dont_downcase_last
;
8501 int can_return_switch_frame
;
8502 int fix_current_buffer
;
8504 volatile Lisp_Object from_string
;
8505 volatile int count
= SPECPDL_INDEX ();
8507 /* How many keys there are in the current key sequence. */
8510 /* The length of the echo buffer when we started reading, and
8511 the length of this_command_keys when we started reading. */
8512 volatile int echo_start
;
8513 volatile int keys_start
;
8515 /* The number of keymaps we're scanning right now, and the number of
8516 keymaps we have allocated space for. */
8518 volatile int nmaps_allocated
= 0;
8520 /* defs[0..nmaps-1] are the definitions of KEYBUF[0..t-1] in
8521 the current keymaps. */
8522 Lisp_Object
*volatile defs
= NULL
;
8524 /* submaps[0..nmaps-1] are the prefix definitions of KEYBUF[0..t-1]
8525 in the current keymaps, or nil where it is not a prefix. */
8526 Lisp_Object
*volatile submaps
= NULL
;
8528 /* The local map to start out with at start of key sequence. */
8529 volatile Lisp_Object orig_local_map
;
8531 /* The map from the `keymap' property to start out with at start of
8533 volatile Lisp_Object orig_keymap
;
8535 /* 1 if we have already considered switching to the local-map property
8536 of the place where a mouse click occurred. */
8537 volatile int localized_local_map
= 0;
8539 /* The index in defs[] of the first keymap that has a binding for
8540 this key sequence. In other words, the lowest i such that
8541 defs[i] is non-nil. */
8542 volatile int first_binding
;
8543 /* Index of the first key that has no binding.
8544 It is useless to try fkey.start larger than that. */
8545 volatile int first_unbound
;
8547 /* If t < mock_input, then KEYBUF[t] should be read as the next
8550 We use this to recover after recognizing a function key. Once we
8551 realize that a suffix of the current key sequence is actually a
8552 function key's escape sequence, we replace the suffix with the
8553 function key's binding from Vfunction_key_map. Now keybuf
8554 contains a new and different key sequence, so the echo area,
8555 this_command_keys, and the submaps and defs arrays are wrong. In
8556 this situation, we set mock_input to t, set t to 0, and jump to
8557 restart_sequence; the loop will read keys from keybuf up until
8558 mock_input, thus rebuilding the state; and then it will resume
8559 reading characters from the keyboard. */
8560 volatile int mock_input
= 0;
8562 /* If the sequence is unbound in submaps[], then
8563 keybuf[fkey.start..fkey.end-1] is a prefix in Vfunction_key_map,
8564 and fkey.map is its binding.
8566 These might be > t, indicating that all function key scanning
8567 should hold off until t reaches them. We do this when we've just
8568 recognized a function key, to avoid searching for the function
8569 key's again in Vfunction_key_map. */
8570 volatile keyremap fkey
;
8572 /* Likewise, for key_translation_map. */
8573 volatile keyremap keytran
;
8575 /* If we receive a `switch-frame' or `select-window' event in the middle of
8576 a key sequence, we put it off for later.
8577 While we're reading, we keep the event here. */
8578 volatile Lisp_Object delayed_switch_frame
;
8580 /* See the comment below... */
8581 #if defined (GOBBLE_FIRST_EVENT)
8582 Lisp_Object first_event
;
8585 volatile Lisp_Object original_uppercase
;
8586 volatile int original_uppercase_position
= -1;
8588 /* Gets around Microsoft compiler limitations. */
8591 struct buffer
*starting_buffer
;
8593 /* List of events for which a fake prefix key has been generated. */
8594 volatile Lisp_Object fake_prefixed_keys
= Qnil
;
8596 #if defined (GOBBLE_FIRST_EVENT)
8600 struct gcpro gcpro1
;
8602 GCPRO1 (fake_prefixed_keys
);
8603 raw_keybuf_count
= 0;
8605 last_nonmenu_event
= Qnil
;
8607 delayed_switch_frame
= Qnil
;
8608 fkey
.map
= fkey
.parent
= Vfunction_key_map
;
8609 keytran
.map
= keytran
.parent
= Vkey_translation_map
;
8610 /* If there is no translation-map, turn off scanning. */
8611 fkey
.start
= fkey
.end
= KEYMAPP (fkey
.map
) ? 0 : bufsize
+ 1;
8612 keytran
.start
= keytran
.end
= KEYMAPP (keytran
.map
) ? 0 : bufsize
+ 1;
8617 echo_prompt (prompt
);
8618 else if (cursor_in_echo_area
8619 && (FLOATP (Vecho_keystrokes
) || INTEGERP (Vecho_keystrokes
))
8620 && NILP (Fzerop (Vecho_keystrokes
)))
8621 /* This doesn't put in a dash if the echo buffer is empty, so
8622 you don't always see a dash hanging out in the minibuffer. */
8626 /* Record the initial state of the echo area and this_command_keys;
8627 we will need to restore them if we replay a key sequence. */
8629 echo_start
= echo_length ();
8630 keys_start
= this_command_key_count
;
8631 this_single_command_key_start
= keys_start
;
8633 #if defined (GOBBLE_FIRST_EVENT)
8634 /* This doesn't quite work, because some of the things that read_char
8635 does cannot safely be bypassed. It seems too risky to try to make
8638 /* Read the first char of the sequence specially, before setting
8639 up any keymaps, in case a filter runs and switches buffers on us. */
8640 first_event
= read_char (NILP (prompt
), 0, submaps
, last_nonmenu_event
,
8642 #endif /* GOBBLE_FIRST_EVENT */
8644 orig_local_map
= get_local_map (PT
, current_buffer
, Qlocal_map
);
8645 orig_keymap
= get_local_map (PT
, current_buffer
, Qkeymap
);
8648 /* We jump here when the key sequence has been thoroughly changed, and
8649 we need to rescan it starting from the beginning. When we jump here,
8650 keybuf[0..mock_input] holds the sequence we should reread. */
8653 starting_buffer
= current_buffer
;
8654 first_unbound
= bufsize
+ 1;
8656 /* Build our list of keymaps.
8657 If we recognize a function key and replace its escape sequence in
8658 keybuf with its symbol, or if the sequence starts with a mouse
8659 click and we need to switch buffers, we jump back here to rebuild
8660 the initial keymaps from the current buffer. */
8663 if (!NILP (current_kboard
->Voverriding_terminal_local_map
)
8664 || !NILP (Voverriding_local_map
))
8666 if (3 > nmaps_allocated
)
8668 submaps
= (Lisp_Object
*) alloca (3 * sizeof (submaps
[0]));
8669 defs
= (Lisp_Object
*) alloca (3 * sizeof (defs
[0]));
8670 nmaps_allocated
= 3;
8672 if (!NILP (current_kboard
->Voverriding_terminal_local_map
))
8673 submaps
[nmaps
++] = current_kboard
->Voverriding_terminal_local_map
;
8674 if (!NILP (Voverriding_local_map
))
8675 submaps
[nmaps
++] = Voverriding_local_map
;
8683 nminor
= current_minor_maps (0, &maps
);
8684 total
= nminor
+ (!NILP (orig_keymap
) ? 3 : 2);
8686 if (total
> nmaps_allocated
)
8688 submaps
= (Lisp_Object
*) alloca (total
* sizeof (submaps
[0]));
8689 defs
= (Lisp_Object
*) alloca (total
* sizeof (defs
[0]));
8690 nmaps_allocated
= total
;
8693 if (!NILP (orig_keymap
))
8694 submaps
[nmaps
++] = orig_keymap
;
8696 bcopy (maps
, (void *) (submaps
+ nmaps
),
8697 nminor
* sizeof (submaps
[0]));
8701 submaps
[nmaps
++] = orig_local_map
;
8703 submaps
[nmaps
++] = current_global_map
;
8705 /* Find an accurate initial value for first_binding. */
8706 for (first_binding
= 0; first_binding
< nmaps
; first_binding
++)
8707 if (! NILP (submaps
[first_binding
]))
8710 /* Start from the beginning in keybuf. */
8713 /* These are no-ops the first time through, but if we restart, they
8714 revert the echo area and this_command_keys to their original state. */
8715 this_command_key_count
= keys_start
;
8716 if (INTERACTIVE
&& t
< mock_input
)
8717 echo_truncate (echo_start
);
8719 /* If the best binding for the current key sequence is a keymap, or
8720 we may be looking at a function key's escape sequence, keep on
8722 while (first_binding
< nmaps
8723 /* Keep reading as long as there's a prefix binding. */
8724 ? !NILP (submaps
[first_binding
])
8725 /* Don't return in the middle of a possible function key sequence,
8726 if the only bindings we found were via case conversion.
8727 Thus, if ESC O a has a function-key-map translation
8728 and ESC o has a binding, don't return after ESC O,
8729 so that we can translate ESC O plus the next character. */
8730 : (fkey
.start
< t
|| keytran
.start
< t
))
8733 int used_mouse_menu
= 0;
8735 /* Where the last real key started. If we need to throw away a
8736 key that has expanded into more than one element of keybuf
8737 (say, a mouse click on the mode line which is being treated
8738 as [mode-line (mouse-...)], then we backtrack to this point
8740 volatile int last_real_key_start
;
8742 /* These variables are analogous to echo_start and keys_start;
8743 while those allow us to restart the entire key sequence,
8744 echo_local_start and keys_local_start allow us to throw away
8746 volatile int echo_local_start
, keys_local_start
, local_first_binding
;
8748 eassert (fkey
.end
== t
|| (fkey
.end
> t
&& fkey
.end
<= mock_input
));
8749 eassert (fkey
.start
<= fkey
.end
);
8750 eassert (keytran
.start
<= keytran
.end
);
8751 /* key-translation-map is applied *after* function-key-map. */
8752 eassert (keytran
.end
<= fkey
.start
);
8754 if (first_unbound
< fkey
.start
&& first_unbound
< keytran
.start
)
8755 { /* The prefix upto first_unbound has no binding and has
8756 no translation left to do either, so we know it's unbound.
8757 If we don't stop now, we risk staying here indefinitely
8758 (if the user keeps entering fkey or keytran prefixes
8759 like C-c ESC ESC ESC ESC ...) */
8761 for (i
= first_unbound
+ 1; i
< t
; i
++)
8762 keybuf
[i
- first_unbound
- 1] = keybuf
[i
];
8763 mock_input
= t
- first_unbound
- 1;
8764 fkey
.end
= fkey
.start
-= first_unbound
+ 1;
8765 fkey
.map
= fkey
.parent
;
8766 keytran
.end
= keytran
.start
-= first_unbound
+ 1;
8767 keytran
.map
= keytran
.parent
;
8768 goto replay_sequence
;
8772 error ("Key sequence too long");
8775 echo_local_start
= echo_length ();
8776 keys_local_start
= this_command_key_count
;
8777 local_first_binding
= first_binding
;
8780 /* These are no-ops, unless we throw away a keystroke below and
8781 jumped back up to replay_key; in that case, these restore the
8782 variables to their original state, allowing us to replay the
8784 if (INTERACTIVE
&& t
< mock_input
)
8785 echo_truncate (echo_local_start
);
8786 this_command_key_count
= keys_local_start
;
8787 first_binding
= local_first_binding
;
8789 /* By default, assume each event is "real". */
8790 last_real_key_start
= t
;
8792 /* Does mock_input indicate that we are re-reading a key sequence? */
8796 add_command_key (key
);
8797 if ((FLOATP (Vecho_keystrokes
) || INTEGERP (Vecho_keystrokes
))
8798 && NILP (Fzerop (Vecho_keystrokes
)))
8802 /* If not, we should actually read a character. */
8807 KBOARD
*interrupted_kboard
= current_kboard
;
8808 struct frame
*interrupted_frame
= SELECTED_FRAME ();
8809 if (setjmp (wrong_kboard_jmpbuf
))
8811 if (!NILP (delayed_switch_frame
))
8813 interrupted_kboard
->kbd_queue
8814 = Fcons (delayed_switch_frame
,
8815 interrupted_kboard
->kbd_queue
);
8816 delayed_switch_frame
= Qnil
;
8819 interrupted_kboard
->kbd_queue
8820 = Fcons (keybuf
[--t
], interrupted_kboard
->kbd_queue
);
8822 /* If the side queue is non-empty, ensure it begins with a
8823 switch-frame, so we'll replay it in the right context. */
8824 if (CONSP (interrupted_kboard
->kbd_queue
)
8825 && (key
= XCAR (interrupted_kboard
->kbd_queue
),
8826 !(EVENT_HAS_PARAMETERS (key
)
8827 && EQ (EVENT_HEAD_KIND (EVENT_HEAD (key
)),
8831 XSETFRAME (frame
, interrupted_frame
);
8832 interrupted_kboard
->kbd_queue
8833 = Fcons (make_lispy_switch_frame (frame
),
8834 interrupted_kboard
->kbd_queue
);
8837 orig_local_map
= get_local_map (PT
, current_buffer
, Qlocal_map
);
8838 orig_keymap
= get_local_map (PT
, current_buffer
, Qkeymap
);
8839 goto replay_sequence
;
8842 key
= read_char (NILP (prompt
), nmaps
,
8843 (Lisp_Object
*) submaps
, last_nonmenu_event
,
8847 /* read_char returns t when it shows a menu and the user rejects it.
8851 unbind_to (count
, Qnil
);
8856 /* read_char returns -1 at the end of a macro.
8857 Emacs 18 handles this by returning immediately with a
8858 zero, so that's what we'll do. */
8859 if (INTEGERP (key
) && XINT (key
) == -1)
8862 /* The Microsoft C compiler can't handle the goto that
8868 /* If the current buffer has been changed from under us, the
8869 keymap may have changed, so replay the sequence. */
8872 EMACS_TIME initial_idleness_start_time
;
8873 EMACS_SET_SECS_USECS (initial_idleness_start_time
,
8874 EMACS_SECS (timer_last_idleness_start_time
),
8875 EMACS_USECS (timer_last_idleness_start_time
));
8877 /* Resume idle state, using the same start-time as before. */
8878 timer_start_idle ();
8879 timer_idleness_start_time
= initial_idleness_start_time
;
8882 /* Reset the current buffer from the selected window
8883 in case something changed the former and not the latter.
8884 This is to be more consistent with the behavior
8885 of the command_loop_1. */
8886 if (fix_current_buffer
)
8888 if (! FRAME_LIVE_P (XFRAME (selected_frame
)))
8890 if (XBUFFER (XWINDOW (selected_window
)->buffer
) != current_buffer
)
8891 Fset_buffer (XWINDOW (selected_window
)->buffer
);
8894 orig_local_map
= get_local_map (PT
, current_buffer
, Qlocal_map
);
8895 orig_keymap
= get_local_map (PT
, current_buffer
, Qkeymap
);
8896 goto replay_sequence
;
8899 /* If we have a quit that was typed in another frame, and
8900 quit_throw_to_read_char switched buffers,
8901 replay to get the right keymap. */
8903 && XINT (key
) == quit_char
8904 && current_buffer
!= starting_buffer
)
8907 XVECTOR (raw_keybuf
)->contents
[raw_keybuf_count
++] = key
;
8911 orig_local_map
= get_local_map (PT
, current_buffer
, Qlocal_map
);
8912 orig_keymap
= get_local_map (PT
, current_buffer
, Qkeymap
);
8913 goto replay_sequence
;
8918 if (EVENT_HAS_PARAMETERS (key
)
8919 /* Either a `switch-frame' or a `select-window' event. */
8920 && EQ (EVENT_HEAD_KIND (EVENT_HEAD (key
)), Qswitch_frame
))
8922 /* If we're at the beginning of a key sequence, and the caller
8923 says it's okay, go ahead and return this event. If we're
8924 in the midst of a key sequence, delay it until the end. */
8925 if (t
> 0 || !can_return_switch_frame
)
8927 delayed_switch_frame
= key
;
8933 XVECTOR (raw_keybuf
)->contents
[raw_keybuf_count
++] = key
;
8936 /* Clicks in non-text areas get prefixed by the symbol
8937 in their CHAR-ADDRESS field. For example, a click on
8938 the mode line is prefixed by the symbol `mode-line'.
8940 Furthermore, key sequences beginning with mouse clicks
8941 are read using the keymaps of the buffer clicked on, not
8942 the current buffer. So we may have to switch the buffer
8945 When we turn one event into two events, we must make sure
8946 that neither of the two looks like the original--so that,
8947 if we replay the events, they won't be expanded again.
8948 If not for this, such reexpansion could happen either here
8949 or when user programs play with this-command-keys. */
8950 if (EVENT_HAS_PARAMETERS (key
))
8955 kind
= EVENT_HEAD_KIND (EVENT_HEAD (key
));
8956 if (EQ (kind
, Qmouse_click
))
8958 Lisp_Object window
, posn
;
8960 window
= POSN_WINDOW (EVENT_START (key
));
8961 posn
= POSN_POSN (EVENT_START (key
));
8964 || (!NILP (fake_prefixed_keys
)
8965 && !NILP (Fmemq (key
, fake_prefixed_keys
))))
8967 /* We're looking a second time at an event for which
8968 we generated a fake prefix key. Set
8969 last_real_key_start appropriately. */
8971 last_real_key_start
= t
- 1;
8974 /* Key sequences beginning with mouse clicks are
8975 read using the keymaps in the buffer clicked on,
8976 not the current buffer. If we're at the
8977 beginning of a key sequence, switch buffers. */
8978 if (last_real_key_start
== 0
8980 && BUFFERP (XWINDOW (window
)->buffer
)
8981 && XBUFFER (XWINDOW (window
)->buffer
) != current_buffer
)
8983 XVECTOR (raw_keybuf
)->contents
[raw_keybuf_count
++] = key
;
8987 /* Arrange to go back to the original buffer once we're
8988 done reading the key sequence. Note that we can't
8989 use save_excursion_{save,restore} here, because they
8990 save point as well as the current buffer; we don't
8991 want to save point, because redisplay may change it,
8992 to accommodate a Fset_window_start or something. We
8993 don't want to do this at the top of the function,
8994 because we may get input from a subprocess which
8995 wants to change the selected window and stuff (say,
8997 record_unwind_protect (Fset_buffer
, Fcurrent_buffer ());
8999 if (! FRAME_LIVE_P (XFRAME (selected_frame
)))
9001 set_buffer_internal (XBUFFER (XWINDOW (window
)->buffer
));
9002 orig_local_map
= get_local_map (PT
, current_buffer
,
9004 orig_keymap
= get_local_map (PT
, current_buffer
, Qkeymap
);
9005 goto replay_sequence
;
9008 /* For a mouse click, get the local text-property keymap
9009 of the place clicked on, rather than point. */
9010 if (last_real_key_start
== 0
9011 && CONSP (XCDR (key
))
9012 && ! localized_local_map
)
9014 Lisp_Object map_here
, start
, pos
;
9016 localized_local_map
= 1;
9017 start
= EVENT_START (key
);
9019 if (CONSP (start
) && POSN_INBUFFER_P (start
))
9021 pos
= POSN_BUFFER_POSN (start
);
9023 && XINT (pos
) >= BEG
&& XINT (pos
) <= Z
)
9025 map_here
= get_local_map (XINT (pos
),
9026 current_buffer
, Qlocal_map
);
9027 if (!EQ (map_here
, orig_local_map
))
9029 orig_local_map
= map_here
;
9033 goto replay_sequence
;
9035 map_here
= get_local_map (XINT (pos
),
9036 current_buffer
, Qkeymap
);
9037 if (!EQ (map_here
, orig_keymap
))
9039 orig_keymap
= map_here
;
9043 goto replay_sequence
;
9049 /* Expand mode-line and scroll-bar events into two events:
9050 use posn as a fake prefix key. */
9052 && (NILP (fake_prefixed_keys
)
9053 || NILP (Fmemq (key
, fake_prefixed_keys
))))
9055 if (t
+ 1 >= bufsize
)
9056 error ("Key sequence too long");
9059 keybuf
[t
+ 1] = key
;
9062 /* Record that a fake prefix key has been generated
9063 for KEY. Don't modify the event; this would
9064 prevent proper action when the event is pushed
9065 back into unread-command-events. */
9066 fake_prefixed_keys
= Fcons (key
, fake_prefixed_keys
);
9068 /* If on a mode line string with a local keymap,
9069 reconsider the key sequence with that keymap. */
9070 if (string
= POSN_STRING (EVENT_START (key
)),
9071 (CONSP (string
) && STRINGP (XCAR (string
))))
9073 Lisp_Object pos
, map
, map2
;
9075 pos
= XCDR (string
);
9076 string
= XCAR (string
);
9078 && XINT (pos
) < SCHARS (string
))
9080 map
= Fget_text_property (pos
, Qlocal_map
, string
);
9082 orig_local_map
= map
;
9083 map2
= Fget_text_property (pos
, Qkeymap
, string
);
9086 if (!NILP (map
) || !NILP (map2
))
9087 goto replay_sequence
;
9093 else if (NILP (from_string
)
9094 && (string
= POSN_STRING (EVENT_START (key
)),
9095 (CONSP (string
) && STRINGP (XCAR (string
)))))
9097 /* For a click on a string, i.e. overlay string or a
9098 string displayed via the `display' property,
9099 consider `local-map' and `keymap' properties of
9101 Lisp_Object pos
, map
, map2
;
9103 pos
= XCDR (string
);
9104 string
= XCAR (string
);
9106 && XINT (pos
) < SCHARS (string
))
9108 map
= Fget_text_property (pos
, Qlocal_map
, string
);
9110 orig_local_map
= map
;
9111 map2
= Fget_text_property (pos
, Qkeymap
, string
);
9115 if (!NILP (map
) || !NILP (map2
))
9117 from_string
= string
;
9118 goto replay_sequence
;
9123 else if (CONSP (XCDR (key
))
9124 && CONSP (EVENT_START (key
))
9125 && CONSP (XCDR (EVENT_START (key
))))
9129 posn
= POSN_POSN (EVENT_START (key
));
9130 /* Handle menu-bar events:
9131 insert the dummy prefix event `menu-bar'. */
9132 if (EQ (posn
, Qmenu_bar
) || EQ (posn
, Qtool_bar
))
9134 if (t
+ 1 >= bufsize
)
9135 error ("Key sequence too long");
9139 /* Zap the position in key, so we know that we've
9140 expanded it, and don't try to do so again. */
9141 POSN_SET_POSN (EVENT_START (key
),
9142 Fcons (posn
, Qnil
));
9145 goto replay_sequence
;
9147 else if (CONSP (posn
))
9149 /* We're looking at the second event of a
9150 sequence which we expanded before. Set
9151 last_real_key_start appropriately. */
9152 if (last_real_key_start
== t
&& t
> 0)
9153 last_real_key_start
= t
- 1;
9158 /* We have finally decided that KEY is something we might want
9160 first_binding
= (follow_key (key
,
9161 nmaps
- first_binding
,
9162 submaps
+ first_binding
,
9163 defs
+ first_binding
,
9164 submaps
+ first_binding
)
9167 /* If KEY wasn't bound, we'll try some fallbacks. */
9168 if (first_binding
< nmaps
)
9169 /* This is needed for the following scenario:
9170 event 0: a down-event that gets dropped by calling replay_key.
9171 event 1: some normal prefix like C-h.
9172 After event 0, first_unbound is 0, after event 1 fkey.start
9173 and keytran.start are both 1, so when we see that C-h is bound,
9174 we need to update first_unbound. */
9175 first_unbound
= max (t
+ 1, first_unbound
);
9180 /* Remember the position to put an upper bound on fkey.start. */
9181 first_unbound
= min (t
, first_unbound
);
9183 head
= EVENT_HEAD (key
);
9184 if (help_char_p (head
) && t
> 0)
9186 read_key_sequence_cmd
= Vprefix_help_command
;
9188 last_nonmenu_event
= key
;
9189 /* The Microsoft C compiler can't handle the goto that
9197 Lisp_Object breakdown
;
9200 breakdown
= parse_modifiers (head
);
9201 modifiers
= XINT (XCAR (XCDR (breakdown
)));
9202 /* Attempt to reduce an unbound mouse event to a simpler
9203 event that is bound:
9204 Drags reduce to clicks.
9205 Double-clicks reduce to clicks.
9206 Triple-clicks reduce to double-clicks, then to clicks.
9207 Down-clicks are eliminated.
9208 Double-downs reduce to downs, then are eliminated.
9209 Triple-downs reduce to double-downs, then to downs,
9210 then are eliminated. */
9211 if (modifiers
& (down_modifier
| drag_modifier
9212 | double_modifier
| triple_modifier
))
9214 while (modifiers
& (down_modifier
| drag_modifier
9215 | double_modifier
| triple_modifier
))
9217 Lisp_Object new_head
, new_click
;
9218 if (modifiers
& triple_modifier
)
9219 modifiers
^= (double_modifier
| triple_modifier
);
9220 else if (modifiers
& double_modifier
)
9221 modifiers
&= ~double_modifier
;
9222 else if (modifiers
& drag_modifier
)
9223 modifiers
&= ~drag_modifier
;
9226 /* Dispose of this `down' event by simply jumping
9227 back to replay_key, to get another event.
9229 Note that if this event came from mock input,
9230 then just jumping back to replay_key will just
9231 hand it to us again. So we have to wipe out any
9234 We could delete keybuf[t] and shift everything
9235 after that to the left by one spot, but we'd also
9236 have to fix up any variable that points into
9237 keybuf, and shifting isn't really necessary
9240 Adding prefixes for non-textual mouse clicks
9241 creates two characters of mock input, and both
9242 must be thrown away. If we're only looking at
9243 the prefix now, we can just jump back to
9244 replay_key. On the other hand, if we've already
9245 processed the prefix, and now the actual click
9246 itself is giving us trouble, then we've lost the
9247 state of the keymaps we want to backtrack to, and
9248 we need to replay the whole sequence to rebuild
9251 Beyond that, only function key expansion could
9252 create more than two keys, but that should never
9253 generate mouse events, so it's okay to zero
9254 mock_input in that case too.
9256 FIXME: The above paragraph seems just plain
9257 wrong, if you consider things like
9258 xterm-mouse-mode. -stef
9260 Isn't this just the most wonderful code ever? */
9262 /* If mock_input > t + 1, the above simplification
9263 will actually end up dropping keys on the floor.
9264 This is probably OK for now, but even
9265 if mock_input <= t + 1, we need to adjust fkey
9267 Typical case [header-line down-mouse-N]:
9268 mock_input = 2, t = 1, fkey.end = 1,
9269 last_real_key_start = 0. */
9270 if (fkey
.end
> last_real_key_start
)
9272 fkey
.end
= fkey
.start
9273 = min (last_real_key_start
, fkey
.start
);
9274 fkey
.map
= fkey
.parent
;
9275 if (keytran
.end
> last_real_key_start
)
9277 keytran
.end
= keytran
.start
9278 = min (last_real_key_start
, keytran
.start
);
9279 keytran
.map
= keytran
.parent
;
9282 if (t
== last_real_key_start
)
9289 mock_input
= last_real_key_start
;
9290 goto replay_sequence
;
9295 = apply_modifiers (modifiers
, XCAR (breakdown
));
9297 = Fcons (new_head
, Fcons (EVENT_START (key
), Qnil
));
9299 /* Look for a binding for this new key. follow_key
9300 promises that it didn't munge submaps the
9301 last time we called it, since key was unbound. */
9303 = (follow_key (new_click
,
9304 nmaps
- local_first_binding
,
9305 submaps
+ local_first_binding
,
9306 defs
+ local_first_binding
,
9307 submaps
+ local_first_binding
)
9308 + local_first_binding
);
9310 /* If that click is bound, go for it. */
9311 if (first_binding
< nmaps
)
9316 /* Otherwise, we'll leave key set to the drag event. */
9323 /* Normally, last_nonmenu_event gets the previous key we read.
9324 But when a mouse popup menu is being used,
9325 we don't update last_nonmenu_event; it continues to hold the mouse
9326 event that preceded the first level of menu. */
9327 if (!used_mouse_menu
)
9328 last_nonmenu_event
= key
;
9330 /* Record what part of this_command_keys is the current key sequence. */
9331 this_single_command_key_start
= this_command_key_count
- t
;
9333 if (first_binding
< nmaps
&& NILP (submaps
[first_binding
]))
9334 /* There is a binding and it's not a prefix.
9335 There is thus no function-key in this sequence.
9336 Moving fkey.start is important in this case to allow keytran.start
9337 to go over the sequence before we return (since we keep the
9338 invariant that keytran.end <= fkey.start). */
9341 (fkey
.start
= fkey
.end
= t
, fkey
.map
= fkey
.parent
);
9344 /* If the sequence is unbound, see if we can hang a function key
9345 off the end of it. */
9346 /* Continue scan from fkey.end until we find a bound suffix. */
9347 while (fkey
.end
< t
)
9349 struct gcpro gcpro1
, gcpro2
, gcpro3
;
9352 GCPRO3 (fkey
.map
, keytran
.map
, delayed_switch_frame
);
9353 done
= keyremap_step (keybuf
, bufsize
, &fkey
,
9354 max (t
, mock_input
),
9355 /* If there's a binding (i.e.
9356 first_binding >= nmaps) we don't want
9357 to apply this function-key-mapping. */
9358 fkey
.end
+ 1 == t
&& first_binding
>= nmaps
,
9363 mock_input
= diff
+ max (t
, mock_input
);
9364 goto replay_sequence
;
9368 /* Look for this sequence in key-translation-map.
9369 Scan from keytran.end until we find a bound suffix. */
9370 while (keytran
.end
< fkey
.start
)
9372 struct gcpro gcpro1
, gcpro2
, gcpro3
;
9375 GCPRO3 (fkey
.map
, keytran
.map
, delayed_switch_frame
);
9376 done
= keyremap_step (keybuf
, bufsize
, &keytran
, max (t
, mock_input
),
9381 mock_input
= diff
+ max (t
, mock_input
);
9382 /* Adjust the function-key-map counters. */
9386 goto replay_sequence
;
9390 /* If KEY is not defined in any of the keymaps,
9391 and cannot be part of a function key or translation,
9392 and is an upper case letter
9393 use the corresponding lower-case letter instead. */
9394 if (first_binding
>= nmaps
9395 && fkey
.start
>= t
&& keytran
.start
>= t
9397 && ((((XINT (key
) & 0x3ffff)
9398 < XCHAR_TABLE (current_buffer
->downcase_table
)->size
)
9399 && UPPERCASEP (XINT (key
) & 0x3ffff))
9400 || (XINT (key
) & shift_modifier
)))
9402 Lisp_Object new_key
;
9404 original_uppercase
= key
;
9405 original_uppercase_position
= t
- 1;
9407 if (XINT (key
) & shift_modifier
)
9408 XSETINT (new_key
, XINT (key
) & ~shift_modifier
);
9410 XSETINT (new_key
, (DOWNCASE (XINT (key
) & 0x3ffff)
9411 | (XINT (key
) & ~0x3ffff)));
9413 /* We have to do this unconditionally, regardless of whether
9414 the lower-case char is defined in the keymaps, because they
9415 might get translated through function-key-map. */
9416 keybuf
[t
- 1] = new_key
;
9417 mock_input
= max (t
, mock_input
);
9419 goto replay_sequence
;
9421 /* If KEY is not defined in any of the keymaps,
9422 and cannot be part of a function key or translation,
9423 and is a shifted function key,
9424 use the corresponding unshifted function key instead. */
9425 if (first_binding
>= nmaps
9426 && fkey
.start
>= t
&& keytran
.start
>= t
9429 Lisp_Object breakdown
;
9432 breakdown
= parse_modifiers (key
);
9433 modifiers
= XINT (XCAR (XCDR (breakdown
)));
9434 if (modifiers
& shift_modifier
)
9436 Lisp_Object new_key
;
9438 original_uppercase
= key
;
9439 original_uppercase_position
= t
- 1;
9441 modifiers
&= ~shift_modifier
;
9442 new_key
= apply_modifiers (modifiers
,
9445 keybuf
[t
- 1] = new_key
;
9446 mock_input
= max (t
, mock_input
);
9447 fkey
.start
= fkey
.end
= KEYMAPP (fkey
.map
) ? 0 : bufsize
+ 1;
9448 keytran
.start
= keytran
.end
= KEYMAPP (keytran
.map
) ? 0 : bufsize
+ 1;
9450 goto replay_sequence
;
9456 read_key_sequence_cmd
= (first_binding
< nmaps
9457 ? defs
[first_binding
]
9460 unread_switch_frame
= delayed_switch_frame
;
9461 unbind_to (count
, Qnil
);
9463 /* Don't downcase the last character if the caller says don't.
9464 Don't downcase it if the result is undefined, either. */
9465 if ((dont_downcase_last
|| first_binding
>= nmaps
)
9466 && t
- 1 == original_uppercase_position
)
9467 keybuf
[t
- 1] = original_uppercase
;
9469 /* Occasionally we fabricate events, perhaps by expanding something
9470 according to function-key-map, or by adding a prefix symbol to a
9471 mouse click in the scroll bar or modeline. In this cases, return
9472 the entire generated key sequence, even if we hit an unbound
9473 prefix or a definition before the end. This means that you will
9474 be able to push back the event properly, and also means that
9475 read-key-sequence will always return a logical unit.
9478 for (; t
< mock_input
; t
++)
9480 if ((FLOATP (Vecho_keystrokes
) || INTEGERP (Vecho_keystrokes
))
9481 && NILP (Fzerop (Vecho_keystrokes
)))
9482 echo_char (keybuf
[t
]);
9483 add_command_key (keybuf
[t
]);
9492 DEFUN ("read-key-sequence", Fread_key_sequence
, Sread_key_sequence
, 1, 5, 0,
9493 doc
: /* Read a sequence of keystrokes and return as a string or vector.
9494 The sequence is sufficient to specify a non-prefix command in the
9495 current local and global maps.
9497 First arg PROMPT is a prompt string. If nil, do not prompt specially.
9498 Second (optional) arg CONTINUE-ECHO, if non-nil, means this key echos
9499 as a continuation of the previous key.
9501 The third (optional) arg DONT-DOWNCASE-LAST, if non-nil, means do not
9502 convert the last event to lower case. (Normally any upper case event
9503 is converted to lower case if the original event is undefined and the lower
9504 case equivalent is defined.) A non-nil value is appropriate for reading
9505 a key sequence to be defined.
9507 A C-g typed while in this function is treated like any other character,
9508 and `quit-flag' is not set.
9510 If the key sequence starts with a mouse click, then the sequence is read
9511 using the keymaps of the buffer of the window clicked in, not the buffer
9512 of the selected window as normal.
9514 `read-key-sequence' drops unbound button-down events, since you normally
9515 only care about the click or drag events which follow them. If a drag
9516 or multi-click event is unbound, but the corresponding click event would
9517 be bound, `read-key-sequence' turns the event into a click event at the
9518 drag's starting position. This means that you don't have to distinguish
9519 between click and drag, double, or triple events unless you want to.
9521 `read-key-sequence' prefixes mouse events on mode lines, the vertical
9522 lines separating windows, and scroll bars with imaginary keys
9523 `mode-line', `vertical-line', and `vertical-scroll-bar'.
9525 Optional fourth argument CAN-RETURN-SWITCH-FRAME non-nil means that this
9526 function will process a switch-frame event if the user switches frames
9527 before typing anything. If the user switches frames in the middle of a
9528 key sequence, or at the start of the sequence but CAN-RETURN-SWITCH-FRAME
9529 is nil, then the event will be put off until after the current key sequence.
9531 `read-key-sequence' checks `function-key-map' for function key
9532 sequences, where they wouldn't conflict with ordinary bindings. See
9533 `function-key-map' for more details.
9535 The optional fifth argument COMMAND-LOOP, if non-nil, means
9536 that this key sequence is being read by something that will
9537 read commands one after another. It should be nil if the caller
9538 will read just one key sequence. */)
9539 (prompt
, continue_echo
, dont_downcase_last
, can_return_switch_frame
,
9541 Lisp_Object prompt
, continue_echo
, dont_downcase_last
;
9542 Lisp_Object can_return_switch_frame
, command_loop
;
9544 Lisp_Object keybuf
[30];
9546 struct gcpro gcpro1
;
9547 int count
= SPECPDL_INDEX ();
9550 CHECK_STRING (prompt
);
9553 specbind (Qinput_method_exit_on_first_char
,
9554 (NILP (command_loop
) ? Qt
: Qnil
));
9555 specbind (Qinput_method_use_echo_area
,
9556 (NILP (command_loop
) ? Qt
: Qnil
));
9558 bzero (keybuf
, sizeof keybuf
);
9560 gcpro1
.nvars
= (sizeof keybuf
/sizeof (keybuf
[0]));
9562 if (NILP (continue_echo
))
9564 this_command_key_count
= 0;
9565 this_command_key_count_reset
= 0;
9566 this_single_command_key_start
= 0;
9569 #ifdef HAVE_X_WINDOWS
9570 if (display_hourglass_p
)
9571 cancel_hourglass ();
9574 i
= read_key_sequence (keybuf
, (sizeof keybuf
/sizeof (keybuf
[0])),
9575 prompt
, ! NILP (dont_downcase_last
),
9576 ! NILP (can_return_switch_frame
), 0);
9578 #if 0 /* The following is fine for code reading a key sequence and
9579 then proceeding with a lenghty computation, but it's not good
9580 for code reading keys in a loop, like an input method. */
9581 #ifdef HAVE_X_WINDOWS
9582 if (display_hourglass_p
)
9593 return unbind_to (count
, make_event_array (i
, keybuf
));
9596 DEFUN ("read-key-sequence-vector", Fread_key_sequence_vector
,
9597 Sread_key_sequence_vector
, 1, 5, 0,
9598 doc
: /* Like `read-key-sequence' but always return a vector. */)
9599 (prompt
, continue_echo
, dont_downcase_last
, can_return_switch_frame
,
9601 Lisp_Object prompt
, continue_echo
, dont_downcase_last
;
9602 Lisp_Object can_return_switch_frame
, command_loop
;
9604 Lisp_Object keybuf
[30];
9606 struct gcpro gcpro1
;
9607 int count
= SPECPDL_INDEX ();
9610 CHECK_STRING (prompt
);
9613 specbind (Qinput_method_exit_on_first_char
,
9614 (NILP (command_loop
) ? Qt
: Qnil
));
9615 specbind (Qinput_method_use_echo_area
,
9616 (NILP (command_loop
) ? Qt
: Qnil
));
9618 bzero (keybuf
, sizeof keybuf
);
9620 gcpro1
.nvars
= (sizeof keybuf
/sizeof (keybuf
[0]));
9622 if (NILP (continue_echo
))
9624 this_command_key_count
= 0;
9625 this_command_key_count_reset
= 0;
9626 this_single_command_key_start
= 0;
9629 #ifdef HAVE_X_WINDOWS
9630 if (display_hourglass_p
)
9631 cancel_hourglass ();
9634 i
= read_key_sequence (keybuf
, (sizeof keybuf
/sizeof (keybuf
[0])),
9635 prompt
, ! NILP (dont_downcase_last
),
9636 ! NILP (can_return_switch_frame
), 0);
9638 #ifdef HAVE_X_WINDOWS
9639 if (display_hourglass_p
)
9649 return unbind_to (count
, Fvector (i
, keybuf
));
9652 DEFUN ("command-execute", Fcommand_execute
, Scommand_execute
, 1, 4, 0,
9653 doc
: /* Execute CMD as an editor command.
9654 CMD must be a symbol that satisfies the `commandp' predicate.
9655 Optional second arg RECORD-FLAG non-nil
9656 means unconditionally put this command in `command-history'.
9657 Otherwise, that is done only if an arg is read using the minibuffer.
9658 The argument KEYS specifies the value to use instead of (this-command-keys)
9659 when reading the arguments; if it is nil, (this-command-keys) is used.
9660 The argument SPECIAL, if non-nil, means that this command is executing
9661 a special event, so ignore the prefix argument and don't clear it. */)
9662 (cmd
, record_flag
, keys
, special
)
9663 Lisp_Object cmd
, record_flag
, keys
, special
;
9665 register Lisp_Object final
;
9666 register Lisp_Object tem
;
9667 Lisp_Object prefixarg
;
9668 struct backtrace backtrace
;
9669 extern int debug_on_next_call
;
9671 debug_on_next_call
= 0;
9675 prefixarg
= current_kboard
->Vprefix_arg
;
9676 Vcurrent_prefix_arg
= prefixarg
;
9677 current_kboard
->Vprefix_arg
= Qnil
;
9684 tem
= Fget (cmd
, Qdisabled
);
9685 if (!NILP (tem
) && !NILP (Vrun_hooks
))
9687 tem
= Fsymbol_value (Qdisabled_command_hook
);
9689 return call1 (Vrun_hooks
, Qdisabled_command_hook
);
9695 final
= Findirect_function (cmd
);
9697 if (CONSP (final
) && (tem
= Fcar (final
), EQ (tem
, Qautoload
)))
9699 struct gcpro gcpro1
, gcpro2
;
9701 GCPRO2 (cmd
, prefixarg
);
9702 do_autoload (final
, cmd
);
9709 if (STRINGP (final
) || VECTORP (final
))
9711 /* If requested, place the macro in the command history. For
9712 other sorts of commands, call-interactively takes care of
9714 if (!NILP (record_flag
))
9717 = Fcons (Fcons (Qexecute_kbd_macro
,
9718 Fcons (final
, Fcons (prefixarg
, Qnil
))),
9721 /* Don't keep command history around forever. */
9722 if (NUMBERP (Vhistory_length
) && XINT (Vhistory_length
) > 0)
9724 tem
= Fnthcdr (Vhistory_length
, Vcommand_history
);
9726 XSETCDR (tem
, Qnil
);
9730 return Fexecute_kbd_macro (final
, prefixarg
, Qnil
);
9733 if (CONSP (final
) || SUBRP (final
) || COMPILEDP (final
))
9735 backtrace
.next
= backtrace_list
;
9736 backtrace_list
= &backtrace
;
9737 backtrace
.function
= &Qcall_interactively
;
9738 backtrace
.args
= &cmd
;
9739 backtrace
.nargs
= 1;
9740 backtrace
.evalargs
= 0;
9742 tem
= Fcall_interactively (cmd
, record_flag
, keys
);
9744 backtrace_list
= backtrace
.next
;
9752 DEFUN ("execute-extended-command", Fexecute_extended_command
, Sexecute_extended_command
,
9754 doc
: /* Read function name, then read its arguments and call it. */)
9756 Lisp_Object prefixarg
;
9758 Lisp_Object function
;
9760 int saved_last_point_position
;
9761 Lisp_Object saved_keys
, saved_last_point_position_buffer
;
9762 Lisp_Object bindings
, value
;
9763 struct gcpro gcpro1
, gcpro2
, gcpro3
;
9765 saved_keys
= Fvector (this_command_key_count
,
9766 XVECTOR (this_command_keys
)->contents
);
9767 saved_last_point_position_buffer
= last_point_position_buffer
;
9768 saved_last_point_position
= last_point_position
;
9770 GCPRO3 (saved_keys
, prefixarg
, saved_last_point_position_buffer
);
9772 if (EQ (prefixarg
, Qminus
))
9774 else if (CONSP (prefixarg
) && XINT (XCAR (prefixarg
)) == 4)
9775 strcpy (buf
, "C-u ");
9776 else if (CONSP (prefixarg
) && INTEGERP (XCAR (prefixarg
)))
9778 if (sizeof (int) == sizeof (EMACS_INT
))
9779 sprintf (buf
, "%d ", XINT (XCAR (prefixarg
)));
9780 else if (sizeof (long) == sizeof (EMACS_INT
))
9781 sprintf (buf
, "%ld ", (long) XINT (XCAR (prefixarg
)));
9785 else if (INTEGERP (prefixarg
))
9787 if (sizeof (int) == sizeof (EMACS_INT
))
9788 sprintf (buf
, "%d ", XINT (prefixarg
));
9789 else if (sizeof (long) == sizeof (EMACS_INT
))
9790 sprintf (buf
, "%ld ", (long) XINT (prefixarg
));
9795 /* This isn't strictly correct if execute-extended-command
9796 is bound to anything else. Perhaps it should use
9797 this_command_keys? */
9798 strcat (buf
, "M-x ");
9800 /* Prompt with buf, and then read a string, completing from and
9801 restricting to the set of all defined commands. Don't provide
9802 any initial input. Save the command read on the extended-command
9804 function
= Fcompleting_read (build_string (buf
),
9805 Vobarray
, Qcommandp
,
9806 Qt
, Qnil
, Qextended_command_history
, Qnil
,
9809 if (STRINGP (function
) && SCHARS (function
) == 0)
9810 error ("No command name given");
9812 /* Set this_command_keys to the concatenation of saved_keys and
9813 function, followed by a RET. */
9818 this_command_key_count
= 0;
9819 this_command_key_count_reset
= 0;
9820 this_single_command_key_start
= 0;
9822 keys
= XVECTOR (saved_keys
)->contents
;
9823 for (i
= 0; i
< XVECTOR (saved_keys
)->size
; i
++)
9824 add_command_key (keys
[i
]);
9826 for (i
= 0; i
< SCHARS (function
); i
++)
9827 add_command_key (Faref (function
, make_number (i
)));
9829 add_command_key (make_number ('\015'));
9832 last_point_position
= saved_last_point_position
;
9833 last_point_position_buffer
= saved_last_point_position_buffer
;
9837 function
= Fintern (function
, Qnil
);
9838 current_kboard
->Vprefix_arg
= prefixarg
;
9839 Vthis_command
= function
;
9840 real_this_command
= function
;
9842 /* If enabled, show which key runs this command. */
9843 if (!NILP (Vsuggest_key_bindings
)
9844 && NILP (Vexecuting_macro
)
9845 && SYMBOLP (function
))
9846 bindings
= Fwhere_is_internal (function
, Voverriding_local_map
,
9852 GCPRO2 (bindings
, value
);
9853 value
= Fcommand_execute (function
, Qt
, Qnil
, Qnil
);
9855 /* If the command has a key binding, print it now. */
9856 if (!NILP (bindings
)
9857 && ! (VECTORP (bindings
) && EQ (Faref (bindings
, make_number (0)),
9860 /* But first wait, and skip the message if there is input. */
9862 if (!NILP (echo_area_buffer
[0]))
9863 /* This command displayed something in the echo area;
9864 so wait a few seconds, then display our suggestion message. */
9865 delay_time
= (NUMBERP (Vsuggest_key_bindings
)
9866 ? XINT (Vsuggest_key_bindings
) : 2);
9868 /* This command left the echo area empty,
9869 so display our message immediately. */
9872 if (!NILP (Fsit_for (make_number (delay_time
), Qnil
, Qnil
))
9873 && ! CONSP (Vunread_command_events
))
9875 Lisp_Object binding
;
9877 int message_p
= push_message ();
9878 int count
= SPECPDL_INDEX ();
9880 record_unwind_protect (pop_message_unwind
, Qnil
);
9881 binding
= Fkey_description (bindings
, Qnil
);
9884 = (char *) alloca (SCHARS (SYMBOL_NAME (function
))
9887 sprintf (newmessage
, "You can run the command `%s' with %s",
9888 SDATA (SYMBOL_NAME (function
)),
9890 message2_nolog (newmessage
,
9891 strlen (newmessage
),
9892 STRING_MULTIBYTE (binding
));
9893 if (!NILP (Fsit_for ((NUMBERP (Vsuggest_key_bindings
)
9894 ? Vsuggest_key_bindings
: make_number (2)),
9899 unbind_to (count
, Qnil
);
9903 RETURN_UNGCPRO (value
);
9907 /* Return nonzero if input events are pending. */
9910 detect_input_pending ()
9913 get_input_pending (&input_pending
, 0);
9915 return input_pending
;
9918 /* Return nonzero if input events are pending, and run any pending timers. */
9921 detect_input_pending_run_timers (do_display
)
9924 int old_timers_run
= timers_run
;
9927 get_input_pending (&input_pending
, 1);
9929 if (old_timers_run
!= timers_run
&& do_display
)
9931 redisplay_preserve_echo_area (8);
9932 /* The following fixes a bug when using lazy-lock with
9933 lazy-lock-defer-on-the-fly set to t, i.e. when fontifying
9934 from an idle timer function. The symptom of the bug is that
9935 the cursor sometimes doesn't become visible until the next X
9936 event is processed. --gerd. */
9938 Lisp_Object tail
, frame
;
9939 FOR_EACH_FRAME (tail
, frame
)
9940 if (FRAME_RIF (XFRAME (frame
)))
9941 FRAME_RIF (XFRAME (frame
))->flush_display (XFRAME (frame
));
9945 return input_pending
;
9948 /* This is called in some cases before a possible quit.
9949 It cases the next call to detect_input_pending to recompute input_pending.
9950 So calling this function unnecessarily can't do any harm. */
9953 clear_input_pending ()
9958 /* Return nonzero if there are pending requeued events.
9959 This isn't used yet. The hope is to make wait_reading_process_input
9960 call it, and return if it runs Lisp code that unreads something.
9961 The problem is, kbd_buffer_get_event needs to be fixed to know what
9962 to do in that case. It isn't trivial. */
9965 requeued_events_pending_p ()
9967 return (!NILP (Vunread_command_events
) || unread_command_char
!= -1);
9971 DEFUN ("input-pending-p", Finput_pending_p
, Sinput_pending_p
, 0, 0, 0,
9972 doc
: /* Return t if command input is currently available with no wait.
9973 Actually, the value is nil only if we can be sure that no input is available;
9974 if there is a doubt, the value is t. */)
9977 if (!NILP (Vunread_command_events
) || unread_command_char
!= -1)
9980 get_filtered_input_pending (&input_pending
, 1, 1);
9981 return input_pending
> 0 ? Qt
: Qnil
;
9984 DEFUN ("recent-keys", Frecent_keys
, Srecent_keys
, 0, 0, 0,
9985 doc
: /* Return vector of last 100 events, not counting those from keyboard macros. */)
9988 Lisp_Object
*keys
= XVECTOR (recent_keys
)->contents
;
9991 if (total_keys
< NUM_RECENT_KEYS
)
9992 return Fvector (total_keys
, keys
);
9995 val
= Fvector (NUM_RECENT_KEYS
, keys
);
9996 bcopy (keys
+ recent_keys_index
,
9997 XVECTOR (val
)->contents
,
9998 (NUM_RECENT_KEYS
- recent_keys_index
) * sizeof (Lisp_Object
));
10000 XVECTOR (val
)->contents
+ NUM_RECENT_KEYS
- recent_keys_index
,
10001 recent_keys_index
* sizeof (Lisp_Object
));
10006 DEFUN ("this-command-keys", Fthis_command_keys
, Sthis_command_keys
, 0, 0, 0,
10007 doc
: /* Return the key sequence that invoked this command.
10008 However, if the command has called `read-key-sequence', it returns
10009 the last key sequence that has been read.
10010 The value is a string or a vector. */)
10013 return make_event_array (this_command_key_count
,
10014 XVECTOR (this_command_keys
)->contents
);
10017 DEFUN ("this-command-keys-vector", Fthis_command_keys_vector
, Sthis_command_keys_vector
, 0, 0, 0,
10018 doc
: /* Return the key sequence that invoked this command, as a vector.
10019 However, if the command has called `read-key-sequence', it returns
10020 the last key sequence that has been read. */)
10023 return Fvector (this_command_key_count
,
10024 XVECTOR (this_command_keys
)->contents
);
10027 DEFUN ("this-single-command-keys", Fthis_single_command_keys
,
10028 Sthis_single_command_keys
, 0, 0, 0,
10029 doc
: /* Return the key sequence that invoked this command.
10030 More generally, it returns the last key sequence read, either by
10031 the command loop or by `read-key-sequence'.
10032 Unlike `this-command-keys', this function's value
10033 does not include prefix arguments.
10034 The value is always a vector. */)
10037 return Fvector (this_command_key_count
10038 - this_single_command_key_start
,
10039 (XVECTOR (this_command_keys
)->contents
10040 + this_single_command_key_start
));
10043 DEFUN ("this-single-command-raw-keys", Fthis_single_command_raw_keys
,
10044 Sthis_single_command_raw_keys
, 0, 0, 0,
10045 doc
: /* Return the raw events that were read for this command.
10046 More generally, it returns the last key sequence read, either by
10047 the command loop or by `read-key-sequence'.
10048 Unlike `this-single-command-keys', this function's value
10049 shows the events before all translations (except for input methods).
10050 The value is always a vector. */)
10053 return Fvector (raw_keybuf_count
,
10054 (XVECTOR (raw_keybuf
)->contents
));
10057 DEFUN ("reset-this-command-lengths", Freset_this_command_lengths
,
10058 Sreset_this_command_lengths
, 0, 0, 0,
10059 doc
: /* Make the unread events replace the last command and echo.
10060 Used in `universal-argument-other-key'.
10062 `universal-argument-other-key' rereads the event just typed.
10063 It then gets translated through `function-key-map'.
10064 The translated event has to replace the real events,
10065 both in the value of (this-command-keys) and in echoing.
10066 To achieve this, `universal-argument-other-key' calls
10067 `reset-this-command-lengths', which discards the record of reading
10068 these events the first time. */)
10071 this_command_key_count
= before_command_key_count
;
10072 if (this_command_key_count
< this_single_command_key_start
)
10073 this_single_command_key_start
= this_command_key_count
;
10075 echo_truncate (before_command_echo_length
);
10077 /* Cause whatever we put into unread-command-events
10078 to echo as if it were being freshly read from the keyboard. */
10079 this_command_key_count_reset
= 1;
10084 DEFUN ("clear-this-command-keys", Fclear_this_command_keys
,
10085 Sclear_this_command_keys
, 0, 1, 0,
10086 doc
: /* Clear out the vector that `this-command-keys' returns.
10087 Also clear the record of the last 100 events, unless optional arg
10088 KEEP-RECORD is non-nil. */)
10090 Lisp_Object keep_record
;
10094 this_command_key_count
= 0;
10095 this_command_key_count_reset
= 0;
10097 if (NILP (keep_record
))
10099 for (i
= 0; i
< XVECTOR (recent_keys
)->size
; ++i
)
10100 XVECTOR (recent_keys
)->contents
[i
] = Qnil
;
10102 recent_keys_index
= 0;
10107 DEFUN ("recursion-depth", Frecursion_depth
, Srecursion_depth
, 0, 0, 0,
10108 doc
: /* Return the current depth in recursive edits. */)
10112 XSETFASTINT (temp
, command_loop_level
+ minibuf_level
);
10116 DEFUN ("open-dribble-file", Fopen_dribble_file
, Sopen_dribble_file
, 1, 1,
10117 "FOpen dribble file: ",
10118 doc
: /* Start writing all keyboard characters to a dribble file called FILE.
10119 If FILE is nil, close any open dribble file. */)
10130 file
= Fexpand_file_name (file
, Qnil
);
10131 dribble
= fopen (SDATA (file
), "w");
10133 report_file_error ("Opening dribble", Fcons (file
, Qnil
));
10138 DEFUN ("discard-input", Fdiscard_input
, Sdiscard_input
, 0, 0, 0,
10139 doc
: /* Discard the contents of the terminal input buffer.
10140 Also end any kbd macro being defined. */)
10143 if (!NILP (current_kboard
->defining_kbd_macro
))
10145 /* Discard the last command from the macro. */
10146 Fcancel_kbd_macro_events ();
10150 update_mode_lines
++;
10152 Vunread_command_events
= Qnil
;
10153 unread_command_char
= -1;
10155 discard_tty_input ();
10157 kbd_fetch_ptr
= kbd_store_ptr
;
10163 DEFUN ("suspend-emacs", Fsuspend_emacs
, Ssuspend_emacs
, 0, 1, "",
10164 doc
: /* Stop Emacs and return to superior process. You can resume later.
10165 If `cannot-suspend' is non-nil, or if the system doesn't support job
10166 control, run a subshell instead.
10168 If optional arg STUFFSTRING is non-nil, its characters are stuffed
10169 to be read as terminal input by Emacs's parent, after suspension.
10171 Before suspending, run the normal hook `suspend-hook'.
10172 After resumption run the normal hook `suspend-resume-hook'.
10174 Some operating systems cannot stop the Emacs process and resume it later.
10175 On such systems, Emacs starts a subshell instead of suspending. */)
10177 Lisp_Object stuffstring
;
10179 int count
= SPECPDL_INDEX ();
10180 int old_height
, old_width
;
10182 struct gcpro gcpro1
;
10184 if (tty_list
&& tty_list
->next
)
10185 error ("Suspend is not supported with multiple ttys");
10187 if (!NILP (stuffstring
))
10188 CHECK_STRING (stuffstring
);
10190 /* Run the functions in suspend-hook. */
10191 if (!NILP (Vrun_hooks
))
10192 call1 (Vrun_hooks
, intern ("suspend-hook"));
10194 GCPRO1 (stuffstring
);
10195 get_tty_size (fileno (CURTTY ()->input
), &old_width
, &old_height
);
10196 reset_all_sys_modes ();
10197 /* sys_suspend can get an error if it tries to fork a subshell
10198 and the system resources aren't available for that. */
10199 record_unwind_protect ((Lisp_Object (*) P_ ((Lisp_Object
))) init_all_sys_modes
,
10201 stuff_buffered_input (stuffstring
);
10202 if (cannot_suspend
)
10206 unbind_to (count
, Qnil
);
10208 /* Check if terminal/window size has changed.
10209 Note that this is not useful when we are running directly
10210 with a window system; but suspend should be disabled in that case. */
10211 get_tty_size (fileno (CURTTY ()->input
), &width
, &height
);
10212 if (width
!= old_width
|| height
!= old_height
)
10213 change_frame_size (SELECTED_FRAME (), height
, width
, 0, 0, 0);
10215 /* Run suspend-resume-hook. */
10216 if (!NILP (Vrun_hooks
))
10217 call1 (Vrun_hooks
, intern ("suspend-resume-hook"));
10223 /* If STUFFSTRING is a string, stuff its contents as pending terminal input.
10224 Then in any case stuff anything Emacs has read ahead and not used. */
10227 stuff_buffered_input (stuffstring
)
10228 Lisp_Object stuffstring
;
10230 /* stuff_char works only in BSD, versions 4.2 and up. */
10233 register unsigned char *p
;
10235 if (STRINGP (stuffstring
))
10237 register int count
;
10239 p
= SDATA (stuffstring
);
10240 count
= SBYTES (stuffstring
);
10241 while (count
-- > 0)
10246 /* Anything we have read ahead, put back for the shell to read. */
10247 /* ?? What should this do when we have multiple keyboards??
10248 Should we ignore anything that was typed in at the "wrong" kboard? */
10249 for (; kbd_fetch_ptr
!= kbd_store_ptr
; kbd_fetch_ptr
++)
10252 if (kbd_fetch_ptr
== kbd_buffer
+ KBD_BUFFER_SIZE
)
10253 kbd_fetch_ptr
= kbd_buffer
;
10254 if (kbd_fetch_ptr
->kind
== ASCII_KEYSTROKE_EVENT
)
10255 stuff_char (kbd_fetch_ptr
->code
);
10257 clear_event (kbd_fetch_ptr
);
10262 #endif /* BSD_SYSTEM and not BSD4_1 */
10266 set_waiting_for_input (time_to_clear
)
10267 EMACS_TIME
*time_to_clear
;
10269 input_available_clear_time
= time_to_clear
;
10271 /* Tell handle_interrupt to throw back to read_char, */
10272 waiting_for_input
= 1;
10274 /* If handle_interrupt was called before and buffered a C-g,
10275 make it run again now, to avoid timing error. */
10276 if (!NILP (Vquit_flag
))
10277 quit_throw_to_read_char ();
10281 clear_waiting_for_input ()
10283 /* Tell handle_interrupt not to throw back to read_char, */
10284 waiting_for_input
= 0;
10285 input_available_clear_time
= 0;
10288 /* The SIGINT handler.
10290 If we have a frame on the controlling tty, the SIGINT was generated
10291 by C-g, so we call handle_interrupt. Otherwise, the handler kills
10295 interrupt_signal (signalnum
) /* If we don't have an argument, */
10296 int signalnum
; /* some compilers complain in signal calls. */
10298 /* Must preserve main program's value of errno. */
10299 int old_errno
= errno
;
10300 struct display
*display
;
10302 #if defined (USG) && !defined (POSIX_SIGNALS)
10303 /* USG systems forget handlers when they are used;
10304 must reestablish each time */
10305 signal (SIGINT
, interrupt_signal
);
10306 signal (SIGQUIT
, interrupt_signal
);
10309 /* See if we have a display on our controlling terminal. */
10310 display
= get_named_tty_display (NULL
);
10313 /* If there are no frames there, let's pretend that we are a
10314 well-behaving UN*X program and quit. */
10315 Fkill_emacs (Qnil
);
10319 /* Otherwise, the SIGINT was probably generated by C-g. */
10321 /* Set internal_last_event_frame to the top frame of the
10322 controlling tty, if we have a frame there. We disable the
10323 interrupt key on secondary ttys, so the SIGINT must have come
10324 from the controlling tty. */
10325 internal_last_event_frame
= display
->display_info
.tty
->top_frame
;
10327 handle_interrupt ();
10333 /* This routine is called at interrupt level in response to C-g.
10335 It is called from the SIGINT handler or kbd_buffer_store_event.
10337 If `waiting_for_input' is non zero, then unless `echoing' is
10338 nonzero, immediately throw back to read_char.
10340 Otherwise it sets the Lisp variable quit-flag not-nil. This causes
10341 eval to throw, when it gets a chance. If quit-flag is already
10342 non-nil, it stops the job right away. */
10345 handle_interrupt ()
10348 struct frame
*sf
= SELECTED_FRAME ();
10352 /* XXX This code needs to be revised for multi-tty support. */
10353 if (!NILP (Vquit_flag
)
10354 && (FRAME_TERMCAP_P (sf
) || FRAME_MSDOS_P (sf
)))
10356 /* If SIGINT isn't blocked, don't let us be interrupted by
10357 another SIGINT, it might be harmful due to non-reentrancy
10358 in I/O functions. */
10359 sigblock (sigmask (SIGINT
));
10362 reset_all_sys_modes ();
10364 #ifdef SIGTSTP /* Support possible in later USG versions */
10366 * On systems which can suspend the current process and return to the original
10367 * shell, this command causes the user to end up back at the shell.
10368 * The "Auto-save" and "Abort" questions are not asked until
10369 * the user elects to return to emacs, at which point he can save the current
10370 * job and either dump core or continue.
10375 if (sys_suspend () == -1)
10377 printf ("Not running as a subprocess;\n");
10378 printf ("you can continue or abort.\n");
10380 #else /* not VMS */
10381 /* Perhaps should really fork an inferior shell?
10382 But that would not provide any way to get back
10383 to the original shell, ever. */
10384 printf ("No support for stopping a process on this operating system;\n");
10385 printf ("you can continue or abort.\n");
10386 #endif /* not VMS */
10387 #endif /* not SIGTSTP */
10389 /* We must remain inside the screen area when the internal terminal
10390 is used. Note that [Enter] is not echoed by dos. */
10393 /* It doesn't work to autosave while GC is in progress;
10394 the code used for auto-saving doesn't cope with the mark bit. */
10395 if (!gc_in_progress
)
10397 printf ("Auto-save? (y or n) ");
10399 if (((c
= getchar ()) & ~040) == 'Y')
10401 Fdo_auto_save (Qt
, Qnil
);
10403 printf ("\r\nAuto-save done");
10404 #else /* not MSDOS */
10405 printf ("Auto-save done\n");
10406 #endif /* not MSDOS */
10408 while (c
!= '\n') c
= getchar ();
10412 /* During GC, it must be safe to reenable quitting again. */
10413 Vinhibit_quit
= Qnil
;
10416 #endif /* not MSDOS */
10417 printf ("Garbage collection in progress; cannot auto-save now\r\n");
10418 printf ("but will instead do a real quit after garbage collection ends\r\n");
10423 printf ("\r\nAbort? (y or n) ");
10424 #else /* not MSDOS */
10426 printf ("Abort (and enter debugger)? (y or n) ");
10427 #else /* not VMS */
10428 printf ("Abort (and dump core)? (y or n) ");
10429 #endif /* not VMS */
10430 #endif /* not MSDOS */
10432 if (((c
= getchar ()) & ~040) == 'Y')
10434 while (c
!= '\n') c
= getchar ();
10436 printf ("\r\nContinuing...\r\n");
10437 #else /* not MSDOS */
10438 printf ("Continuing...\n");
10439 #endif /* not MSDOS */
10441 init_all_sys_modes ();
10446 /* If executing a function that wants to be interrupted out of
10447 and the user has not deferred quitting by binding `inhibit-quit'
10448 then quit right away. */
10449 if (immediate_quit
&& NILP (Vinhibit_quit
))
10451 struct gl_state_s saved
;
10452 struct gcpro gcpro1
, gcpro2
, gcpro3
, gcpro4
;
10454 immediate_quit
= 0;
10457 GCPRO4 (saved
.object
, saved
.global_code
,
10458 saved
.current_syntax_table
, saved
.old_prop
);
10459 Fsignal (Qquit
, Qnil
);
10464 /* Else request quit when it's safe */
10468 if (waiting_for_input
&& !echoing
)
10469 quit_throw_to_read_char ();
10472 /* Handle a C-g by making read_char return C-g. */
10475 quit_throw_to_read_char ()
10478 /* Prevent another signal from doing this before we finish. */
10479 clear_waiting_for_input ();
10482 Vunread_command_events
= Qnil
;
10483 unread_command_char
= -1;
10485 #if 0 /* Currently, sit_for is called from read_char without turning
10486 off polling. And that can call set_waiting_for_input.
10487 It seems to be harmless. */
10488 #ifdef POLL_FOR_INPUT
10489 /* May be > 1 if in recursive minibuffer. */
10490 if (poll_suppress_count
== 0)
10494 if (FRAMEP (internal_last_event_frame
)
10495 && !EQ (internal_last_event_frame
, selected_frame
))
10496 do_switch_frame (make_lispy_switch_frame (internal_last_event_frame
),
10499 _longjmp (getcjmp
, 1);
10502 DEFUN ("set-input-mode", Fset_input_mode
, Sset_input_mode
, 3, 4, 0,
10503 doc
: /* Set mode of reading keyboard input.
10504 First arg INTERRUPT non-nil means use input interrupts;
10505 nil means use CBREAK mode.
10506 Second arg FLOW non-nil means use ^S/^Q flow control for output to terminal
10507 (no effect except in CBREAK mode).
10508 Third arg META t means accept 8-bit input (for a Meta key).
10509 META nil means ignore the top bit, on the assumption it is parity.
10510 Otherwise, accept 8-bit input and don't use the top bit for Meta.
10511 Optional fourth arg QUIT if non-nil specifies character to use for quitting.
10512 See also `current-input-mode'. */)
10513 (interrupt
, flow
, meta
, quit
)
10514 Lisp_Object interrupt
, flow
, meta
, quit
;
10516 /* XXX This function needs to be revised for multi-device support.
10517 Currently it compiles fine, but its semantics are wrong. It sets
10518 global parameters (e.g. interrupt_input) based on only the
10519 current frame's device. */
10522 && (!INTEGERP (quit
) || XINT (quit
) < 0 || XINT (quit
) > 0400))
10523 error ("set-input-mode: QUIT must be an ASCII character");
10525 #ifdef POLL_FOR_INPUT
10530 /* this causes startup screen to be restored and messes with the mouse */
10531 reset_all_sys_modes ();
10535 /* Note SIGIO has been undef'd if FIONREAD is missing. */
10536 if (FRAME_DISPLAY (SELECTED_FRAME ())->read_socket_hook
)
10538 /* When using X, don't give the user a real choice,
10539 because we haven't implemented the mechanisms to support it. */
10540 #ifdef NO_SOCK_SIGIO
10541 interrupt_input
= 0;
10542 #else /* not NO_SOCK_SIGIO */
10543 interrupt_input
= 1;
10544 #endif /* NO_SOCK_SIGIO */
10547 interrupt_input
= !NILP (interrupt
);
10548 #else /* not SIGIO */
10549 interrupt_input
= 0;
10550 #endif /* not SIGIO */
10552 /* Our VMS input only works by interrupts, as of now. */
10554 interrupt_input
= 1;
10557 if (FRAME_TERMCAP_P (XFRAME (selected_frame
)))
10559 struct tty_display_info
*tty
= CURTTY ();
10560 tty
->flow_control
= !NILP (flow
);
10563 else if (EQ (meta
, Qt
))
10570 /* Don't let this value be out of range. */
10571 quit_char
= XINT (quit
) & (NILP (meta
) ? 0177 : 0377);
10574 init_all_sys_modes ();
10577 #ifdef POLL_FOR_INPUT
10578 poll_suppress_count
= 1;
10584 DEFUN ("current-input-mode", Fcurrent_input_mode
, Scurrent_input_mode
, 0, 0, 0,
10585 doc
: /* Return information about the way Emacs currently reads keyboard input.
10586 The value is a list of the form (INTERRUPT FLOW META QUIT), where
10587 INTERRUPT is non-nil if Emacs is using interrupt-driven input; if
10588 nil, Emacs is using CBREAK mode.
10589 FLOW is non-nil if Emacs uses ^S/^Q flow control for output to the
10590 terminal; this does not apply if Emacs uses interrupt-driven input.
10591 META is t if accepting 8-bit input with 8th bit as Meta flag.
10592 META nil means ignoring the top bit, on the assumption it is parity.
10593 META is neither t nor nil if accepting 8-bit input and using
10594 all 8 bits as the character code.
10595 QUIT is the character Emacs currently uses to quit.
10596 The elements of this list correspond to the arguments of
10597 `set-input-mode'. */)
10600 Lisp_Object val
[4];
10601 struct frame
*sf
= XFRAME (selected_frame
);
10603 val
[0] = interrupt_input
? Qt
: Qnil
;
10604 if (FRAME_TERMCAP_P (sf
))
10606 val
[1] = FRAME_TTY (sf
)->flow_control
? Qt
: Qnil
;
10607 val
[2] = (FRAME_TTY (sf
)->meta_key
== 2
10609 : (CURTTY ()->meta_key
== 1 ? Qt
: Qnil
));
10616 XSETFASTINT (val
[3], quit_char
);
10618 return Flist (sizeof (val
) / sizeof (val
[0]), val
);
10621 DEFUN ("posn-at-x-y", Fposn_at_x_y
, Sposn_at_x_y
, 2, 3, 0,
10622 doc
: /* Return position information for pixel coordinates X and Y.
10623 By default, X and Y are relative to text area of the selected window.
10624 Optional third arg FRAME_OR_WINDOW non-nil specifies frame or window.
10626 The return value is similar to a mouse click position:
10627 (WINDOW AREA-OR-POS (X . Y) TIMESTAMP OBJECT POS (COL . ROW)
10628 IMAGE (DX . DY) (WIDTH . HEIGHT))
10629 The `posn-' functions access elements of such lists. */)
10630 (x
, y
, frame_or_window
)
10631 Lisp_Object x
, y
, frame_or_window
;
10633 if (NILP (frame_or_window
))
10634 frame_or_window
= selected_window
;
10636 if (WINDOWP (frame_or_window
))
10640 CHECK_LIVE_WINDOW (frame_or_window
);
10642 w
= XWINDOW (frame_or_window
);
10643 XSETINT (x
, (WINDOW_TO_FRAME_PIXEL_X (w
, XINT (x
))
10644 + window_box_left_offset (w
, TEXT_AREA
)));
10645 XSETINT (y
, WINDOW_TO_FRAME_PIXEL_Y (w
, XINT (y
)));
10646 frame_or_window
= w
->frame
;
10649 CHECK_LIVE_FRAME (frame_or_window
);
10651 return make_lispy_position (XFRAME (frame_or_window
), &x
, &y
, 0);
10654 DEFUN ("posn-at-point", Fposn_at_point
, Sposn_at_point
, 0, 2, 0,
10655 doc
: /* Return position information for buffer POS in WINDOW.
10656 POS defaults to point in WINDOW; WINDOW defaults to the selected window.
10658 Return nil if position is not visible in window. Otherwise,
10659 the return value is similar to that returned by event-start for
10660 a mouse click at the upper left corner of the glyph corresponding
10661 to the given buffer position:
10662 (WINDOW AREA-OR-POS (X . Y) TIMESTAMP OBJECT POS (COL . ROW)
10663 IMAGE (DX . DY) (WIDTH . HEIGHT))
10664 The `posn-' functions access elements of such lists. */*/
)
10666 Lisp_Object pos
, window
;
10670 tem
= Fpos_visible_in_window_p (pos
, window
, Qt
);
10672 tem
= Fposn_at_x_y (XCAR (tem
), XCAR (XCDR (tem
)), window
);
10678 * Set up a new kboard object with reasonable initial values.
10684 kb
->Voverriding_terminal_local_map
= Qnil
;
10685 kb
->Vlast_command
= Qnil
;
10686 kb
->Vreal_last_command
= Qnil
;
10687 kb
->Vprefix_arg
= Qnil
;
10688 kb
->Vlast_prefix_arg
= Qnil
;
10689 kb
->kbd_queue
= Qnil
;
10690 kb
->kbd_queue_has_data
= 0;
10691 kb
->immediate_echo
= 0;
10692 kb
->echo_string
= Qnil
;
10693 kb
->echo_after_prompt
= -1;
10694 kb
->kbd_macro_buffer
= 0;
10695 kb
->kbd_macro_bufsize
= 0;
10696 kb
->defining_kbd_macro
= Qnil
;
10697 kb
->Vlast_kbd_macro
= Qnil
;
10698 kb
->reference_count
= 0;
10699 kb
->Vsystem_key_alist
= Qnil
;
10700 kb
->system_key_syms
= Qnil
;
10701 kb
->Vdefault_minibuffer_frame
= Qnil
;
10705 * Destroy the contents of a kboard object, but not the object itself.
10706 * We use this just before deleting it, or if we're going to initialize
10707 * it a second time.
10713 if (kb
->kbd_macro_buffer
)
10714 xfree (kb
->kbd_macro_buffer
);
10717 #ifdef MULTI_KBOARD
10719 /* Free KB and memory referenced from it. */
10727 for (kbp
= &all_kboards
; *kbp
!= kb
; kbp
= &(*kbp
)->next_kboard
)
10730 *kbp
= kb
->next_kboard
;
10732 /* Prevent a dangling reference to KB. */
10733 if (kb
== current_kboard
10734 && FRAMEP (selected_frame
)
10735 && FRAME_LIVE_P (XFRAME (selected_frame
)))
10737 current_kboard
= XFRAME (selected_frame
)->kboard
;
10738 if (current_kboard
== kb
)
10746 #endif /* MULTI_KBOARD */
10751 /* This is correct before outermost invocation of the editor loop */
10752 command_loop_level
= -1;
10753 immediate_quit
= 0;
10754 quit_char
= Ctl ('g');
10755 Vunread_command_events
= Qnil
;
10756 unread_command_char
= -1;
10757 EMACS_SET_SECS_USECS (timer_idleness_start_time
, -1, -1);
10759 recent_keys_index
= 0;
10760 kbd_fetch_ptr
= kbd_buffer
;
10761 kbd_store_ptr
= kbd_buffer
;
10763 do_mouse_tracking
= Qnil
;
10767 /* This means that command_loop_1 won't try to select anything the first
10769 internal_last_event_frame
= Qnil
;
10770 Vlast_event_frame
= internal_last_event_frame
;
10772 #ifdef MULTI_KBOARD
10773 current_kboard
= initial_kboard
;
10775 wipe_kboard (current_kboard
);
10776 init_kboard (current_kboard
);
10778 if (!noninteractive
)
10780 /* Before multi-tty support, these handlers used to be installed
10781 only if the current session was a tty session. Now an Emacs
10782 session may have multiple display types, so we always handle
10783 SIGINT. There is special code in interrupt_signal to exit
10784 Emacs on SIGINT when there are no termcap frames on the
10785 controlling terminal. */
10786 signal (SIGINT
, interrupt_signal
);
10787 #if defined (HAVE_TERMIO) || defined (HAVE_TERMIOS)
10788 /* For systems with SysV TERMIO, C-g is set up for both SIGINT and
10789 SIGQUIT and we can't tell which one it will give us. */
10790 signal (SIGQUIT
, interrupt_signal
);
10791 #endif /* HAVE_TERMIO */
10793 /* Note SIGIO has been undef'd if FIONREAD is missing. */
10795 if (!noninteractive
)
10796 signal (SIGIO
, input_available_signal
);
10799 /* Use interrupt input by default, if it works and noninterrupt input
10800 has deficiencies. */
10802 #ifdef INTERRUPT_INPUT
10803 interrupt_input
= 1;
10805 interrupt_input
= 0;
10808 /* Our VMS input only works by interrupts, as of now. */
10810 interrupt_input
= 1;
10816 if (keyboard_init_hook
)
10817 (*keyboard_init_hook
) ();
10819 #ifdef POLL_FOR_INPUT
10820 poll_suppress_count
= 1;
10825 /* At least provide an escape route since C-g doesn't work. */
10826 signal (SIGINT
, interrupt_signal
);
10830 /* This type's only use is in syms_of_keyboard, to initialize the
10831 event header symbols and put properties on them. */
10832 struct event_head
{
10838 struct event_head head_table
[] = {
10839 {&Qmouse_movement
, "mouse-movement", &Qmouse_movement
},
10840 {&Qscroll_bar_movement
, "scroll-bar-movement", &Qmouse_movement
},
10841 {&Qswitch_frame
, "switch-frame", &Qswitch_frame
},
10842 {&Qdelete_frame
, "delete-frame", &Qdelete_frame
},
10843 {&Qiconify_frame
, "iconify-frame", &Qiconify_frame
},
10844 {&Qmake_frame_visible
, "make-frame-visible", &Qmake_frame_visible
},
10845 /* `select-window' should be handled just like `switch-frame'
10846 in read_key_sequence. */
10847 {&Qselect_window
, "select-window", &Qswitch_frame
}
10851 syms_of_keyboard ()
10853 Vpre_help_message
= Qnil
;
10854 staticpro (&Vpre_help_message
);
10856 Vlispy_mouse_stem
= build_string ("mouse");
10857 staticpro (&Vlispy_mouse_stem
);
10860 QCimage
= intern (":image");
10861 staticpro (&QCimage
);
10863 staticpro (&Qhelp_echo
);
10864 Qhelp_echo
= intern ("help-echo");
10866 staticpro (&item_properties
);
10867 item_properties
= Qnil
;
10869 staticpro (&tool_bar_item_properties
);
10870 tool_bar_item_properties
= Qnil
;
10871 staticpro (&tool_bar_items_vector
);
10872 tool_bar_items_vector
= Qnil
;
10874 staticpro (&real_this_command
);
10875 real_this_command
= Qnil
;
10877 Qtimer_event_handler
= intern ("timer-event-handler");
10878 staticpro (&Qtimer_event_handler
);
10880 Qdisabled_command_hook
= intern ("disabled-command-hook");
10881 staticpro (&Qdisabled_command_hook
);
10883 Qself_insert_command
= intern ("self-insert-command");
10884 staticpro (&Qself_insert_command
);
10886 Qforward_char
= intern ("forward-char");
10887 staticpro (&Qforward_char
);
10889 Qbackward_char
= intern ("backward-char");
10890 staticpro (&Qbackward_char
);
10892 Qdisabled
= intern ("disabled");
10893 staticpro (&Qdisabled
);
10895 Qundefined
= intern ("undefined");
10896 staticpro (&Qundefined
);
10898 Qpre_command_hook
= intern ("pre-command-hook");
10899 staticpro (&Qpre_command_hook
);
10901 Qpost_command_hook
= intern ("post-command-hook");
10902 staticpro (&Qpost_command_hook
);
10904 Qpost_command_idle_hook
= intern ("post-command-idle-hook");
10905 staticpro (&Qpost_command_idle_hook
);
10907 Qdeferred_action_function
= intern ("deferred-action-function");
10908 staticpro (&Qdeferred_action_function
);
10910 Qcommand_hook_internal
= intern ("command-hook-internal");
10911 staticpro (&Qcommand_hook_internal
);
10913 Qfunction_key
= intern ("function-key");
10914 staticpro (&Qfunction_key
);
10915 Qmouse_click
= intern ("mouse-click");
10916 staticpro (&Qmouse_click
);
10918 Qlanguage_change
= intern ("language-change");
10919 staticpro (&Qlanguage_change
);
10921 Qdrag_n_drop
= intern ("drag-n-drop");
10922 staticpro (&Qdrag_n_drop
);
10924 Qsave_session
= intern ("save-session");
10925 staticpro(&Qsave_session
);
10927 Qusr1_signal
= intern ("usr1-signal");
10928 staticpro (&Qusr1_signal
);
10929 Qusr2_signal
= intern ("usr2-signal");
10930 staticpro (&Qusr2_signal
);
10932 Qmenu_enable
= intern ("menu-enable");
10933 staticpro (&Qmenu_enable
);
10934 Qmenu_alias
= intern ("menu-alias");
10935 staticpro (&Qmenu_alias
);
10936 QCenable
= intern (":enable");
10937 staticpro (&QCenable
);
10938 QCvisible
= intern (":visible");
10939 staticpro (&QCvisible
);
10940 QChelp
= intern (":help");
10941 staticpro (&QChelp
);
10942 QCfilter
= intern (":filter");
10943 staticpro (&QCfilter
);
10944 QCbutton
= intern (":button");
10945 staticpro (&QCbutton
);
10946 QCkeys
= intern (":keys");
10947 staticpro (&QCkeys
);
10948 QCkey_sequence
= intern (":key-sequence");
10949 staticpro (&QCkey_sequence
);
10950 QCtoggle
= intern (":toggle");
10951 staticpro (&QCtoggle
);
10952 QCradio
= intern (":radio");
10953 staticpro (&QCradio
);
10955 Qmode_line
= intern ("mode-line");
10956 staticpro (&Qmode_line
);
10957 Qvertical_line
= intern ("vertical-line");
10958 staticpro (&Qvertical_line
);
10959 Qvertical_scroll_bar
= intern ("vertical-scroll-bar");
10960 staticpro (&Qvertical_scroll_bar
);
10961 Qmenu_bar
= intern ("menu-bar");
10962 staticpro (&Qmenu_bar
);
10964 Qabove_handle
= intern ("above-handle");
10965 staticpro (&Qabove_handle
);
10966 Qhandle
= intern ("handle");
10967 staticpro (&Qhandle
);
10968 Qbelow_handle
= intern ("below-handle");
10969 staticpro (&Qbelow_handle
);
10970 Qup
= intern ("up");
10972 Qdown
= intern ("down");
10973 staticpro (&Qdown
);
10974 Qtop
= intern ("top");
10976 Qbottom
= intern ("bottom");
10977 staticpro (&Qbottom
);
10978 Qend_scroll
= intern ("end-scroll");
10979 staticpro (&Qend_scroll
);
10980 Qratio
= intern ("ratio");
10981 staticpro (&Qratio
);
10983 Qevent_kind
= intern ("event-kind");
10984 staticpro (&Qevent_kind
);
10985 Qevent_symbol_elements
= intern ("event-symbol-elements");
10986 staticpro (&Qevent_symbol_elements
);
10987 Qevent_symbol_element_mask
= intern ("event-symbol-element-mask");
10988 staticpro (&Qevent_symbol_element_mask
);
10989 Qmodifier_cache
= intern ("modifier-cache");
10990 staticpro (&Qmodifier_cache
);
10992 Qrecompute_lucid_menubar
= intern ("recompute-lucid-menubar");
10993 staticpro (&Qrecompute_lucid_menubar
);
10994 Qactivate_menubar_hook
= intern ("activate-menubar-hook");
10995 staticpro (&Qactivate_menubar_hook
);
10997 Qpolling_period
= intern ("polling-period");
10998 staticpro (&Qpolling_period
);
11000 Qinput_method_function
= intern ("input-method-function");
11001 staticpro (&Qinput_method_function
);
11003 Qinput_method_exit_on_first_char
= intern ("input-method-exit-on-first-char");
11004 staticpro (&Qinput_method_exit_on_first_char
);
11005 Qinput_method_use_echo_area
= intern ("input-method-use-echo-area");
11006 staticpro (&Qinput_method_use_echo_area
);
11008 Fset (Qinput_method_exit_on_first_char
, Qnil
);
11009 Fset (Qinput_method_use_echo_area
, Qnil
);
11011 last_point_position_buffer
= Qnil
;
11014 struct event_head
*p
;
11016 for (p
= head_table
;
11017 p
< head_table
+ (sizeof (head_table
) / sizeof (head_table
[0]));
11020 *p
->var
= intern (p
->name
);
11021 staticpro (p
->var
);
11022 Fput (*p
->var
, Qevent_kind
, *p
->kind
);
11023 Fput (*p
->var
, Qevent_symbol_elements
, Fcons (*p
->var
, Qnil
));
11027 button_down_location
= Fmake_vector (make_number (1), Qnil
);
11028 staticpro (&button_down_location
);
11029 mouse_syms
= Fmake_vector (make_number (1), Qnil
);
11030 staticpro (&mouse_syms
);
11031 wheel_syms
= Fmake_vector (make_number (2), Qnil
);
11032 staticpro (&wheel_syms
);
11036 int len
= sizeof (modifier_names
) / sizeof (modifier_names
[0]);
11038 modifier_symbols
= Fmake_vector (make_number (len
), Qnil
);
11039 for (i
= 0; i
< len
; i
++)
11040 if (modifier_names
[i
])
11041 XVECTOR (modifier_symbols
)->contents
[i
] = intern (modifier_names
[i
]);
11042 staticpro (&modifier_symbols
);
11045 recent_keys
= Fmake_vector (make_number (NUM_RECENT_KEYS
), Qnil
);
11046 staticpro (&recent_keys
);
11048 this_command_keys
= Fmake_vector (make_number (40), Qnil
);
11049 staticpro (&this_command_keys
);
11051 raw_keybuf
= Fmake_vector (make_number (30), Qnil
);
11052 staticpro (&raw_keybuf
);
11054 Qextended_command_history
= intern ("extended-command-history");
11055 Fset (Qextended_command_history
, Qnil
);
11056 staticpro (&Qextended_command_history
);
11058 accent_key_syms
= Qnil
;
11059 staticpro (&accent_key_syms
);
11061 func_key_syms
= Qnil
;
11062 staticpro (&func_key_syms
);
11064 drag_n_drop_syms
= Qnil
;
11065 staticpro (&drag_n_drop_syms
);
11067 unread_switch_frame
= Qnil
;
11068 staticpro (&unread_switch_frame
);
11070 internal_last_event_frame
= Qnil
;
11071 staticpro (&internal_last_event_frame
);
11073 read_key_sequence_cmd
= Qnil
;
11074 staticpro (&read_key_sequence_cmd
);
11076 menu_bar_one_keymap_changed_items
= Qnil
;
11077 staticpro (&menu_bar_one_keymap_changed_items
);
11079 defsubr (&Sevent_convert_list
);
11080 defsubr (&Sread_key_sequence
);
11081 defsubr (&Sread_key_sequence_vector
);
11082 defsubr (&Srecursive_edit
);
11084 defsubr (&Strack_mouse
);
11086 defsubr (&Sinput_pending_p
);
11087 defsubr (&Scommand_execute
);
11088 defsubr (&Srecent_keys
);
11089 defsubr (&Sthis_command_keys
);
11090 defsubr (&Sthis_command_keys_vector
);
11091 defsubr (&Sthis_single_command_keys
);
11092 defsubr (&Sthis_single_command_raw_keys
);
11093 defsubr (&Sreset_this_command_lengths
);
11094 defsubr (&Sclear_this_command_keys
);
11095 defsubr (&Ssuspend_emacs
);
11096 defsubr (&Sabort_recursive_edit
);
11097 defsubr (&Sexit_recursive_edit
);
11098 defsubr (&Srecursion_depth
);
11099 defsubr (&Stop_level
);
11100 defsubr (&Sdiscard_input
);
11101 defsubr (&Sopen_dribble_file
);
11102 defsubr (&Sset_input_mode
);
11103 defsubr (&Scurrent_input_mode
);
11104 defsubr (&Sexecute_extended_command
);
11105 defsubr (&Sposn_at_point
);
11106 defsubr (&Sposn_at_x_y
);
11108 DEFVAR_LISP ("last-command-char", &last_command_char
,
11109 doc
: /* Last input event that was part of a command. */);
11111 DEFVAR_LISP_NOPRO ("last-command-event", &last_command_char
,
11112 doc
: /* Last input event that was part of a command. */);
11114 DEFVAR_LISP ("last-nonmenu-event", &last_nonmenu_event
,
11115 doc
: /* Last input event in a command, except for mouse menu events.
11116 Mouse menus give back keys that don't look like mouse events;
11117 this variable holds the actual mouse event that led to the menu,
11118 so that you can determine whether the command was run by mouse or not. */);
11120 DEFVAR_LISP ("last-input-char", &last_input_char
,
11121 doc
: /* Last input event. */);
11123 DEFVAR_LISP_NOPRO ("last-input-event", &last_input_char
,
11124 doc
: /* Last input event. */);
11126 DEFVAR_LISP ("unread-command-events", &Vunread_command_events
,
11127 doc
: /* List of events to be read as the command input.
11128 These events are processed first, before actual keyboard input. */);
11129 Vunread_command_events
= Qnil
;
11131 DEFVAR_INT ("unread-command-char", &unread_command_char
,
11132 doc
: /* If not -1, an object to be read as next command input event. */);
11134 DEFVAR_LISP ("unread-post-input-method-events", &Vunread_post_input_method_events
,
11135 doc
: /* List of events to be processed as input by input methods.
11136 These events are processed after `unread-command-events', but
11137 before actual keyboard input. */);
11138 Vunread_post_input_method_events
= Qnil
;
11140 DEFVAR_LISP ("unread-input-method-events", &Vunread_input_method_events
,
11141 doc
: /* List of events to be processed as input by input methods.
11142 These events are processed after `unread-command-events', but
11143 before actual keyboard input. */);
11144 Vunread_input_method_events
= Qnil
;
11146 DEFVAR_LISP ("meta-prefix-char", &meta_prefix_char
,
11147 doc
: /* Meta-prefix character code.
11148 Meta-foo as command input turns into this character followed by foo. */);
11149 XSETINT (meta_prefix_char
, 033);
11151 DEFVAR_KBOARD ("last-command", Vlast_command
,
11152 doc
: /* The last command executed.
11153 Normally a symbol with a function definition, but can be whatever was found
11154 in the keymap, or whatever the variable `this-command' was set to by that
11157 The value `mode-exit' is special; it means that the previous command
11158 read an event that told it to exit, and it did so and unread that event.
11159 In other words, the present command is the event that made the previous
11162 The value `kill-region' is special; it means that the previous command
11163 was a kill command. */);
11165 DEFVAR_KBOARD ("real-last-command", Vreal_last_command
,
11166 doc
: /* Same as `last-command', but never altered by Lisp code. */);
11168 DEFVAR_LISP ("this-command", &Vthis_command
,
11169 doc
: /* The command now being executed.
11170 The command can set this variable; whatever is put here
11171 will be in `last-command' during the following command. */);
11172 Vthis_command
= Qnil
;
11174 DEFVAR_LISP ("this-original-command", &Vthis_original_command
,
11175 doc
: /* The command bound to the current key sequence before remapping.
11176 It equals `this-command' if the original command was not remapped through
11177 any of the active keymaps. Otherwise, the value of `this-command' is the
11178 result of looking up the original command in the active keymaps. */);
11179 Vthis_original_command
= Qnil
;
11181 DEFVAR_INT ("auto-save-interval", &auto_save_interval
,
11182 doc
: /* *Number of input events between auto-saves.
11183 Zero means disable autosaving due to number of characters typed. */);
11184 auto_save_interval
= 300;
11186 DEFVAR_LISP ("auto-save-timeout", &Vauto_save_timeout
,
11187 doc
: /* *Number of seconds idle time before auto-save.
11188 Zero or nil means disable auto-saving due to idleness.
11189 After auto-saving due to this many seconds of idle time,
11190 Emacs also does a garbage collection if that seems to be warranted. */);
11191 XSETFASTINT (Vauto_save_timeout
, 30);
11193 DEFVAR_LISP ("echo-keystrokes", &Vecho_keystrokes
,
11194 doc
: /* *Nonzero means echo unfinished commands after this many seconds of pause.
11195 The value may be integer or floating point. */);
11196 Vecho_keystrokes
= make_number (1);
11198 DEFVAR_INT ("polling-period", &polling_period
,
11199 doc
: /* *Interval between polling for input during Lisp execution.
11200 The reason for polling is to make C-g work to stop a running program.
11201 Polling is needed only when using X windows and SIGIO does not work.
11202 Polling is automatically disabled in all other cases. */);
11203 polling_period
= 2;
11205 DEFVAR_LISP ("double-click-time", &Vdouble_click_time
,
11206 doc
: /* *Maximum time between mouse clicks to make a double-click.
11207 Measured in milliseconds. nil means disable double-click recognition;
11208 t means double-clicks have no time limit and are detected
11209 by position only. */);
11210 Vdouble_click_time
= make_number (500);
11212 DEFVAR_INT ("double-click-fuzz", &double_click_fuzz
,
11213 doc
: /* *Maximum mouse movement between clicks to make a double-click.
11214 On window-system frames, value is the number of pixels the mouse may have
11215 moved horizontally or vertically between two clicks to make a double-click.
11216 On non window-system frames, value is interpreted in units of 1/8 characters
11219 This variable is also the threshold for motion of the mouse
11220 to count as a drag. */);
11221 double_click_fuzz
= 3;
11223 DEFVAR_BOOL ("inhibit-local-menu-bar-menus", &inhibit_local_menu_bar_menus
,
11224 doc
: /* *Non-nil means inhibit local map menu bar menus. */);
11225 inhibit_local_menu_bar_menus
= 0;
11227 DEFVAR_INT ("num-input-keys", &num_input_keys
,
11228 doc
: /* Number of complete key sequences read as input so far.
11229 This includes key sequences read from keyboard macros.
11230 The number is effectively the number of interactive command invocations. */);
11231 num_input_keys
= 0;
11233 DEFVAR_INT ("num-nonmacro-input-events", &num_nonmacro_input_events
,
11234 doc
: /* Number of input events read from the keyboard so far.
11235 This does not include events generated by keyboard macros. */);
11236 num_nonmacro_input_events
= 0;
11238 DEFVAR_LISP ("last-event-frame", &Vlast_event_frame
,
11239 doc
: /* The frame in which the most recently read event occurred.
11240 If the last event came from a keyboard macro, this is set to `macro'. */);
11241 Vlast_event_frame
= Qnil
;
11243 /* This variable is set up in sysdep.c. */
11244 DEFVAR_LISP ("tty-erase-char", &Vtty_erase_char
,
11245 doc
: /* The ERASE character as set by the user with stty. */);
11247 DEFVAR_LISP ("help-char", &Vhelp_char
,
11248 doc
: /* Character to recognize as meaning Help.
11249 When it is read, do `(eval help-form)', and display result if it's a string.
11250 If the value of `help-form' is nil, this char can be read normally. */);
11251 XSETINT (Vhelp_char
, Ctl ('H'));
11253 DEFVAR_LISP ("help-event-list", &Vhelp_event_list
,
11254 doc
: /* List of input events to recognize as meaning Help.
11255 These work just like the value of `help-char' (see that). */);
11256 Vhelp_event_list
= Qnil
;
11258 DEFVAR_LISP ("help-form", &Vhelp_form
,
11259 doc
: /* Form to execute when character `help-char' is read.
11260 If the form returns a string, that string is displayed.
11261 If `help-form' is nil, the help char is not recognized. */);
11264 DEFVAR_LISP ("prefix-help-command", &Vprefix_help_command
,
11265 doc
: /* Command to run when `help-char' character follows a prefix key.
11266 This command is used only when there is no actual binding
11267 for that character after that prefix key. */);
11268 Vprefix_help_command
= Qnil
;
11270 DEFVAR_LISP ("top-level", &Vtop_level
,
11271 doc
: /* Form to evaluate when Emacs starts up.
11272 Useful to set before you dump a modified Emacs. */);
11275 DEFVAR_LISP ("keyboard-translate-table", &Vkeyboard_translate_table
,
11276 doc
: /* Translate table for keyboard input, or nil.
11277 Each character is looked up in this string and the contents used instead.
11278 The value may be a string, a vector, or a char-table.
11279 If it is a string or vector of length N,
11280 character codes N and up are untranslated.
11281 In a vector or a char-table, an element which is nil means "no translation".
11283 This is applied to the characters supplied to input methods, not their
11284 output. See also `translation-table-for-input'. */);
11285 Vkeyboard_translate_table
= Qnil
;
11287 DEFVAR_BOOL ("cannot-suspend", &cannot_suspend
,
11288 doc
: /* Non-nil means to always spawn a subshell instead of suspending.
11289 \(Even if the operating system has support for stopping a process.\) */);
11290 cannot_suspend
= 0;
11292 DEFVAR_BOOL ("menu-prompting", &menu_prompting
,
11293 doc
: /* Non-nil means prompt with menus when appropriate.
11294 This is done when reading from a keymap that has a prompt string,
11295 for elements that have prompt strings.
11296 The menu is displayed on the screen
11297 if X menus were enabled at configuration
11298 time and the previous event was a mouse click prefix key.
11299 Otherwise, menu prompting uses the echo area. */);
11300 menu_prompting
= 1;
11302 DEFVAR_LISP ("menu-prompt-more-char", &menu_prompt_more_char
,
11303 doc
: /* Character to see next line of menu prompt.
11304 Type this character while in a menu prompt to rotate around the lines of it. */);
11305 XSETINT (menu_prompt_more_char
, ' ');
11307 DEFVAR_INT ("extra-keyboard-modifiers", &extra_keyboard_modifiers
,
11308 doc
: /* A mask of additional modifier keys to use with every keyboard character.
11309 Emacs applies the modifiers of the character stored here to each keyboard
11310 character it reads. For example, after evaluating the expression
11311 (setq extra-keyboard-modifiers ?\\C-x)
11312 all input characters will have the control modifier applied to them.
11314 Note that the character ?\\C-@, equivalent to the integer zero, does
11315 not count as a control character; rather, it counts as a character
11316 with no modifiers; thus, setting `extra-keyboard-modifiers' to zero
11317 cancels any modification. */);
11318 extra_keyboard_modifiers
= 0;
11320 DEFVAR_LISP ("deactivate-mark", &Vdeactivate_mark
,
11321 doc
: /* If an editing command sets this to t, deactivate the mark afterward.
11322 The command loop sets this to nil before each command,
11323 and tests the value when the command returns.
11324 Buffer modification stores t in this variable. */);
11325 Vdeactivate_mark
= Qnil
;
11327 DEFVAR_LISP ("command-hook-internal", &Vcommand_hook_internal
,
11328 doc
: /* Temporary storage of pre-command-hook or post-command-hook. */);
11329 Vcommand_hook_internal
= Qnil
;
11331 DEFVAR_LISP ("pre-command-hook", &Vpre_command_hook
,
11332 doc
: /* Normal hook run before each command is executed.
11333 If an unhandled error happens in running this hook,
11334 the hook value is set to nil, since otherwise the error
11335 might happen repeatedly and make Emacs nonfunctional. */);
11336 Vpre_command_hook
= Qnil
;
11338 DEFVAR_LISP ("post-command-hook", &Vpost_command_hook
,
11339 doc
: /* Normal hook run after each command is executed.
11340 If an unhandled error happens in running this hook,
11341 the hook value is set to nil, since otherwise the error
11342 might happen repeatedly and make Emacs nonfunctional. */);
11343 Vpost_command_hook
= Qnil
;
11345 DEFVAR_LISP ("post-command-idle-hook", &Vpost_command_idle_hook
,
11346 doc
: /* Normal hook run after each command is executed, if idle.
11347 Errors running the hook are caught and ignored. */);
11348 Vpost_command_idle_hook
= Qnil
;
11350 DEFVAR_INT ("post-command-idle-delay", &post_command_idle_delay
,
11351 doc
: /* Delay time before running `post-command-idle-hook'.
11352 This is measured in microseconds. */);
11353 post_command_idle_delay
= 100000;
11356 DEFVAR_LISP ("echo-area-clear-hook", ...,
11357 doc
: /* Normal hook run when clearing the echo area. */);
11359 Qecho_area_clear_hook
= intern ("echo-area-clear-hook");
11360 SET_SYMBOL_VALUE (Qecho_area_clear_hook
, Qnil
);
11362 DEFVAR_LISP ("lucid-menu-bar-dirty-flag", &Vlucid_menu_bar_dirty_flag
,
11363 doc
: /* Non-nil means menu bar, specified Lucid style, needs to be recomputed. */);
11364 Vlucid_menu_bar_dirty_flag
= Qnil
;
11366 DEFVAR_LISP ("menu-bar-final-items", &Vmenu_bar_final_items
,
11367 doc
: /* List of menu bar items to move to the end of the menu bar.
11368 The elements of the list are event types that may have menu bar bindings. */);
11369 Vmenu_bar_final_items
= Qnil
;
11371 DEFVAR_KBOARD ("overriding-terminal-local-map",
11372 Voverriding_terminal_local_map
,
11373 doc
: /* Per-terminal keymap that overrides all other local keymaps.
11374 If this variable is non-nil, it is used as a keymap instead of the
11375 buffer's local map, and the minor mode keymaps and text property keymaps.
11376 This variable is intended to let commands such as `universal-argument'
11377 set up a different keymap for reading the next command. */);
11379 DEFVAR_LISP ("overriding-local-map", &Voverriding_local_map
,
11380 doc
: /* Keymap that overrides all other local keymaps.
11381 If this variable is non-nil, it is used as a keymap instead of the
11382 buffer's local map, and the minor mode keymaps and text property keymaps. */);
11383 Voverriding_local_map
= Qnil
;
11385 DEFVAR_LISP ("overriding-local-map-menu-flag", &Voverriding_local_map_menu_flag
,
11386 doc
: /* Non-nil means `overriding-local-map' applies to the menu bar.
11387 Otherwise, the menu bar continues to reflect the buffer's local map
11388 and the minor mode maps regardless of `overriding-local-map'. */);
11389 Voverriding_local_map_menu_flag
= Qnil
;
11391 DEFVAR_LISP ("special-event-map", &Vspecial_event_map
,
11392 doc
: /* Keymap defining bindings for special events to execute at low level. */);
11393 Vspecial_event_map
= Fcons (intern ("keymap"), Qnil
);
11395 DEFVAR_LISP ("track-mouse", &do_mouse_tracking
,
11396 doc
: /* *Non-nil means generate motion events for mouse motion. */);
11398 DEFVAR_KBOARD ("system-key-alist", Vsystem_key_alist
,
11399 doc
: /* Alist of system-specific X windows key symbols.
11400 Each element should have the form (N . SYMBOL) where N is the
11401 numeric keysym code (sans the \"system-specific\" bit 1<<28)
11402 and SYMBOL is its name. */);
11404 DEFVAR_LISP ("deferred-action-list", &Vdeferred_action_list
,
11405 doc
: /* List of deferred actions to be performed at a later time.
11406 The precise format isn't relevant here; we just check whether it is nil. */);
11407 Vdeferred_action_list
= Qnil
;
11409 DEFVAR_LISP ("deferred-action-function", &Vdeferred_action_function
,
11410 doc
: /* Function to call to handle deferred actions, after each command.
11411 This function is called with no arguments after each command
11412 whenever `deferred-action-list' is non-nil. */);
11413 Vdeferred_action_function
= Qnil
;
11415 DEFVAR_LISP ("suggest-key-bindings", &Vsuggest_key_bindings
,
11416 doc
: /* *Non-nil means show the equivalent key-binding when M-x command has one.
11417 The value can be a length of time to show the message for.
11418 If the value is non-nil and not a number, we wait 2 seconds. */);
11419 Vsuggest_key_bindings
= Qt
;
11421 DEFVAR_LISP ("timer-list", &Vtimer_list
,
11422 doc
: /* List of active absolute time timers in order of increasing time. */);
11423 Vtimer_list
= Qnil
;
11425 DEFVAR_LISP ("timer-idle-list", &Vtimer_idle_list
,
11426 doc
: /* List of active idle-time timers in order of increasing time. */);
11427 Vtimer_idle_list
= Qnil
;
11429 DEFVAR_LISP ("input-method-function", &Vinput_method_function
,
11430 doc
: /* If non-nil, the function that implements the current input method.
11431 It's called with one argument, a printing character that was just read.
11432 \(That means a character with code 040...0176.)
11433 Typically this function uses `read-event' to read additional events.
11434 When it does so, it should first bind `input-method-function' to nil
11435 so it will not be called recursively.
11437 The function should return a list of zero or more events
11438 to be used as input. If it wants to put back some events
11439 to be reconsidered, separately, by the input method,
11440 it can add them to the beginning of `unread-command-events'.
11442 The input method function can find in `input-method-previous-method'
11443 the previous echo area message.
11445 The input method function should refer to the variables
11446 `input-method-use-echo-area' and `input-method-exit-on-first-char'
11447 for guidance on what to do. */);
11448 Vinput_method_function
= Qnil
;
11450 DEFVAR_LISP ("input-method-previous-message",
11451 &Vinput_method_previous_message
,
11452 doc
: /* When `input-method-function' is called, hold the previous echo area message.
11453 This variable exists because `read-event' clears the echo area
11454 before running the input method. It is nil if there was no message. */);
11455 Vinput_method_previous_message
= Qnil
;
11457 DEFVAR_LISP ("show-help-function", &Vshow_help_function
,
11458 doc
: /* If non-nil, the function that implements the display of help.
11459 It's called with one argument, the help string to display. */);
11460 Vshow_help_function
= Qnil
;
11462 DEFVAR_LISP ("disable-point-adjustment", &Vdisable_point_adjustment
,
11463 doc
: /* If non-nil, suppress point adjustment after executing a command.
11465 After a command is executed, if point is moved into a region that has
11466 special properties (e.g. composition, display), we adjust point to
11467 the boundary of the region. But, several special commands sets this
11468 variable to non-nil, then we suppress the point adjustment.
11470 This variable is set to nil before reading a command, and is checked
11471 just after executing the command. */);
11472 Vdisable_point_adjustment
= Qnil
;
11474 DEFVAR_LISP ("global-disable-point-adjustment",
11475 &Vglobal_disable_point_adjustment
,
11476 doc
: /* *If non-nil, always suppress point adjustment.
11478 The default value is nil, in which case, point adjustment are
11479 suppressed only after special commands that set
11480 `disable-point-adjustment' (which see) to non-nil. */);
11481 Vglobal_disable_point_adjustment
= Qnil
;
11483 DEFVAR_BOOL ("update-menu-bindings", &update_menu_bindings
,
11484 doc
: /* Non-nil means updating menu bindings is allowed.
11485 A value of nil means menu bindings should not be updated.
11486 Used during Emacs' startup. */);
11487 update_menu_bindings
= 1;
11489 DEFVAR_LISP ("minibuffer-message-timeout", &Vminibuffer_message_timeout
,
11490 doc
: /* *How long to display an echo-area message when the minibuffer is active.
11491 If the value is not a number, such messages don't time out. */);
11492 Vminibuffer_message_timeout
= make_number (2);
11496 keys_of_keyboard ()
11498 initial_define_key (global_map
, Ctl ('Z'), "suspend-emacs");
11499 initial_define_key (control_x_map
, Ctl ('Z'), "suspend-emacs");
11500 initial_define_key (meta_map
, Ctl ('C'), "exit-recursive-edit");
11501 initial_define_key (global_map
, Ctl (']'), "abort-recursive-edit");
11502 initial_define_key (meta_map
, 'x', "execute-extended-command");
11504 initial_define_lispy_key (Vspecial_event_map
, "delete-frame",
11505 "handle-delete-frame");
11506 initial_define_lispy_key (Vspecial_event_map
, "iconify-frame",
11508 initial_define_lispy_key (Vspecial_event_map
, "make-frame-visible",
11510 /* Handling it at such a low-level causes read_key_sequence to get
11511 * confused because it doesn't realize that the current_buffer was
11512 * changed by read_char.
11514 * initial_define_lispy_key (Vspecial_event_map, "select-window",
11515 * "handle-select-window"); */
11516 initial_define_lispy_key (Vspecial_event_map
, "save-session",
11517 "handle-save-session");
11520 /* Mark the pointers in the kboard objects.
11521 Called by the Fgarbage_collector. */
11527 for (kb
= all_kboards
; kb
; kb
= kb
->next_kboard
)
11529 if (kb
->kbd_macro_buffer
)
11530 for (p
= kb
->kbd_macro_buffer
; p
< kb
->kbd_macro_ptr
; p
++)
11532 mark_object (kb
->Voverriding_terminal_local_map
);
11533 mark_object (kb
->Vlast_command
);
11534 mark_object (kb
->Vreal_last_command
);
11535 mark_object (kb
->Vprefix_arg
);
11536 mark_object (kb
->Vlast_prefix_arg
);
11537 mark_object (kb
->kbd_queue
);
11538 mark_object (kb
->defining_kbd_macro
);
11539 mark_object (kb
->Vlast_kbd_macro
);
11540 mark_object (kb
->Vsystem_key_alist
);
11541 mark_object (kb
->system_key_syms
);
11542 mark_object (kb
->Vdefault_minibuffer_frame
);
11543 mark_object (kb
->echo_string
);
11546 struct input_event
*event
;
11547 for (event
= kbd_fetch_ptr
; event
!= kbd_store_ptr
; event
++)
11549 if (event
== kbd_buffer
+ KBD_BUFFER_SIZE
)
11550 event
= kbd_buffer
;
11551 mark_object (event
->x
);
11552 mark_object (event
->y
);
11553 mark_object (event
->frame_or_window
);
11554 mark_object (event
->arg
);
11559 /* arch-tag: 774e34d7-6d31-42f3-8397-e079a4e4c9ca
11560 (do not change this comment) */