/* Keyboard and mouse input; editor command loop.
- Copyright (C) 1985,86,87,88,89,93,94,95,96,97,99, 2000
+ Copyright (C) 1985,86,87,88,89,93,94,95,96,97,99, 2000, 2001
Free Software Foundation, Inc.
This file is part of GNU Emacs.
/* True while displaying for echoing. Delays C-g throwing. */
-static int echoing;
+int echoing;
/* Non-null means we can start echoing at the next input pause even
though there is something in the echo area. */
/* The buffer used for echoing. Set in echo_now, reset in
cancel_echoing. */
-static Lisp_Object echo_message_buffer;
+Lisp_Object echo_message_buffer;
/* Nonzero means disregard local maps for the menu bar. */
static int inhibit_local_menu_bar_menus;
Lisp_Object Vglobal_disable_point_adjustment;
+/* The time when Emacs started being idle. */
+
+static EMACS_TIME timer_idleness_start_time;
+
\f
/* Global variable declarations. */
}
#ifdef HAVE_X_WINDOWS
- /* The command loop has started a busy-cursor timer, so we have to
+ /* The command loop has started an hourglass timer, so we have to
cancel it here, otherwise it will fire because the recursive edit
can take some time. */
- if (display_busy_cursor_p)
- cancel_busy_cursor ();
+ if (display_hourglass_p)
+ cancel_hourglass ();
#endif
+ /* This function may have been called from a debugger called from
+ within redisplay, for instance by Edebugging a function called
+ from fontification-functions. We want to allow redisplay in
+ the debugging session.
+
+ The recursive edit is left with a `(throw exit ...)'. The `exit'
+ tag is not caught anywhere in redisplay, i.e. when we leave the
+ recursive edit, the original redisplay leading to the recursive
+ edit will be unwound. The outcome should therefore be safe. */
+ specbind (Qinhibit_redisplay, Qnil);
+ redisplaying_p = 0;
+
val = command_loop ();
if (EQ (val, Qt))
Fsignal (Qquit, Qnil);
command_loop_level++;
update_mode_lines = 1;
- /* This function may have been called from a debugger called from
- within redisplay, for instance by Edebugging a function called
- from fontification-functions. We want to allow redisplay in
- the debugging session.
-
- The recursive edit is left with a `(throw exit ...)'. The `exit'
- tag is not caught anywhere in redisplay, i.e. when we leave the
- recursive edit, the original redisplay leading to the recursive
- edit will be unwound. The outcome should therefore be safe. */
- specbind (Qinhibit_redisplay, Qnil);
- redisplaying_p = 0;
-
record_unwind_protect (recursive_edit_unwind,
(command_loop_level
&& current_buffer != XBUFFER (XWINDOW (selected_window)->buffer))
()
{
#ifdef HAVE_X_WINDOWS
- if (display_busy_cursor_p)
- cancel_busy_cursor ();
+ if (display_hourglass_p)
+ cancel_hourglass ();
#endif
return Fthrow (Qtop_level, Qnil);
}
/* This is the actual command reading loop,
sans error-handling encapsulation. */
-Lisp_Object Fcommand_execute ();
-static int read_key_sequence ();
-void safe_run_hooks ();
-static void adjust_point_for_property ();
+EXFUN (Fcommand_execute, 4);
+static int read_key_sequence P_ ((Lisp_Object *, int, Lisp_Object,
+ int, int, int));
+void safe_run_hooks P_ ((Lisp_Object));
+static void adjust_point_for_property P_ ((int));
Lisp_Object
command_loop_1 ()
this variable differently. */
Vdisable_point_adjustment = Qnil;
+ /* Process filters and timers may have messed with deactivate-mark.
+ reset it before we execute the command. */
+ Vdeactivate_mark = Qnil;
+
/* Execute the command. */
Vthis_command = cmd;
/* Here for a command that isn't executed directly */
#ifdef HAVE_X_WINDOWS
- if (display_busy_cursor_p)
- start_busy_cursor ();
+ if (display_hourglass_p)
+ start_hourglass ();
#endif
nonundocount = 0;
Fcommand_execute (Vthis_command, Qnil, Qnil, Qnil);
#ifdef HAVE_X_WINDOWS
- if (display_busy_cursor_p)
- cancel_busy_cursor ();
+ if (display_hourglass_p)
+ cancel_hourglass ();
#endif
}
directly_done: ;
volatile Lisp_Object also_record;
volatile int reread;
struct gcpro gcpro1, gcpro2;
+ EMACS_TIME last_idle_start;
also_record = Qnil;
&& NILP (XCDR (c)))
c = XCAR (c);
+ /* If the queued event is something that used the mouse,
+ set used_mouse_menu accordingly. */
+ if (used_mouse_menu
+ && (EQ (c, Qtool_bar) || EQ (c, Qmenu_bar)))
+ *used_mouse_menu = 1;
+
reread = 1;
goto reread_for_input_method;
}
while (!input_pending)
{
if (help_echo_showing_p && !EQ (selected_window, minibuf_window))
- redisplay_preserve_echo_area ();
+ redisplay_preserve_echo_area (5);
else
redisplay ();
non_reread:
+ /* Record the last idle start time so that we can reset it
+ should the next event read be a help-echo. */
+ last_idle_start = timer_idleness_start_time;
timer_stop_idle ();
start_polling ();
object = Fnth (make_number (4), c);
position = Fnth (make_number (5), c);
show_help_echo (help, window, object, position, 0);
+
+ /* We stopped being idle for this event; undo that. */
+ timer_idleness_start_time = last_idle_start;
goto retry;
}
redisplay. */
if (!readable_events (1))
{
- redisplay_preserve_echo_area ();
+ redisplay_preserve_echo_area (6);
get_input_pending (&input_pending, 1);
}
}
get_input_pending (&input_pending, 1);
if (timers_run != old_timers_run && do_display)
- redisplay_preserve_echo_area ();
+ redisplay_preserve_echo_area (7);
}
\f
-static EMACS_TIME timer_idleness_start_time;
-
/* Record the start of when Emacs is idle,
for the sake of running idle-time timers. */
if (NILP (vector[0]))
{
int was_locked = single_kboard;
- int count = specpdl_ptr - specpdl;
+ int count = BINDING_STACK_SIZE ();
+ Lisp_Object old_deactivate_mark = Vdeactivate_mark;
/* Mark the timer as triggered to prevent problems if the lisp
code fails to reschedule it right. */
vector[0] = Qt;
specbind (Qinhibit_quit, Qt);
-
+
call1 (Qtimer_event_handler, chosen_timer);
+ Vdeactivate_mark = old_deactivate_mark;
timers_run++;
-
unbind_to (count, Qnil);
/* Resume allowing input from any kboard, if that was true before. */
for (i = 0; i < XVECTOR (items)->size; i += 4)
{
Lisp_Object pos, string;
- string = XVECTOR (items)->contents[i + 1];
- pos = XVECTOR (items)->contents[i + 3];
+ string = AREF (items, i + 1);
+ pos = AREF (items, i + 3);
if (NILP (string))
break;
if (column >= XINT (pos)
&& column < XINT (pos) + XSTRING (string)->size)
{
- item = XVECTOR (items)->contents[i];
+ item = AREF (items, i);
break;
}
}
else if (part == 2)
posn = Qvertical_line;
else
- XSETINT (posn, buffer_posn_from_coords (w, &wx, &wy));
+ {
+ Lisp_Object object;
+ struct display_pos p;
+ buffer_posn_from_coords (w, &wx, &wy, &object, &p);
+ posn = make_number (CHARPOS (p.pos));
+ if (STRINGP (object))
+ string_info
+ = Fcons (object,
+ make_number (CHARPOS (p.string_pos)));
+ }
}
position
}
#endif /* not USE_TOOLKIT_SCROLL_BARS */
- if (button >= XVECTOR (button_down_location)->size)
+ if (button >= ASIZE (button_down_location))
{
button_down_location = larger_vector (button_down_location,
button + 1, Qnil);
mouse_syms = larger_vector (mouse_syms, button + 1, Qnil);
}
- start_pos_ptr = &XVECTOR (button_down_location)->contents[button];
-
+ start_pos_ptr = &AREF (button_down_location, button);
start_pos = *start_pos_ptr;
*start_pos_ptr = Qnil;
see if this was a click or a drag. */
else if (event->modifiers & up_modifier)
{
- /* If we did not see a down before this up,
- ignore the up. Probably this happened because
- the down event chose a menu item.
- It would be an annoyance to treat the release
- of the button that chose the menu item
- as a separate event. */
+ /* If we did not see a down before this up, ignore the up.
+ Probably this happened because the down event chose a
+ menu item. It would be an annoyance to treat the
+ release of the button that chose the menu item as a
+ separate event. */
if (!CONSP (start_pos))
return Qnil;
Lisp_Object down;
down = Fnth (make_number (2), start_pos);
- if (EQ (event->x, XCAR (down))
- && EQ (event->y, XCDR (down)))
- {
- event->modifiers |= click_modifier;
- }
+ if (EQ (event->x, XCAR (down)) && EQ (event->y, XCDR (down)))
+ /* Mouse hasn't moved. */
+ event->modifiers |= click_modifier;
else
{
- button_down_time = 0;
- event->modifiers |= drag_modifier;
+ Lisp_Object window1, window2, posn1, posn2;
+
+ /* Avoid generating a drag event if the mouse
+ hasn't actually moved off the buffer position. */
+ window1 = Fnth (make_number (0), position);
+ posn1 = Fnth (make_number (1), position);
+ window2 = Fnth (make_number (0), start_pos);
+ posn2 = Fnth (make_number (1), start_pos);
+
+ if (EQ (window1, window2) && EQ (posn1, posn2))
+ event->modifiers |= click_modifier;
+ else
+ {
+ button_down_time = 0;
+ event->modifiers |= drag_modifier;
+ }
}
+
/* Don't check is_double; treat this as multiple
if the down-event was multiple. */
if (double_click_count > 1)
else if (part == 3)
posn = Qheader_line;
else
- XSETINT (posn,
- buffer_posn_from_coords (XWINDOW (window),
- &column, &row));
+ {
+ Lisp_Object object;
+ struct display_pos p;
+ buffer_posn_from_coords (XWINDOW (window), &column, &row,
+ &object, &p);
+ posn = make_number (CHARPOS (p.pos));
+ }
}
{
else if (part == 3)
posn = Qheader_line;
else
- XSETINT (posn, buffer_posn_from_coords (w, &wx, &wy));
+ {
+ Lisp_Object object;
+ struct display_pos p;
+ buffer_posn_from_coords (w, &wx, &wy, &object, &p);
+ posn = make_number (CHARPOS (p.pos));
+ }
}
{
else if (area == 3)
posn = Qheader_line;
else
- XSETINT (posn, buffer_posn_from_coords (w, &wx, &wy));
+ {
+ Lisp_Object object;
+ struct display_pos p;
+ buffer_posn_from_coords (w, &wx, &wy, &object, &p);
+ posn = make_number (CHARPOS (p.pos));
+ }
}
else if (frame != 0)
{
{
/* No, so use major and minor mode keymaps and keymap property. */
int extra_maps = 2;
- Lisp_Object map = get_local_map (PT, current_buffer, keymap);
+ Lisp_Object map = get_local_map (PT, current_buffer, Qkeymap);
if (!NILP (map))
extra_maps = 3;
nmaps = current_minor_maps (NULL, &tmaps);
bcopy (tmaps, maps, nmaps * sizeof (maps[0]));
if (!NILP (map))
maps[nmaps++] = map;
- maps[nmaps++] = get_local_map (PT, current_buffer, local_map);
+ maps[nmaps++] = get_local_map (PT, current_buffer, Qlocal_map);
}
maps[nmaps++] = current_global_map;
}
{
/* No, so use major and minor mode keymaps and keymap property. */
int extra_maps = 2;
- Lisp_Object map = get_local_map (PT, current_buffer, keymap);
+ Lisp_Object map = get_local_map (PT, current_buffer, Qkeymap);
if (!NILP (map))
extra_maps = 3;
nmaps = current_minor_maps (NULL, &tmaps);
bcopy (tmaps, maps, nmaps * sizeof (maps[0]));
if (!NILP (map))
maps[nmaps++] = map;
- maps[nmaps++] = get_local_map (PT, current_buffer, local_map);
+ maps[nmaps++] = get_local_map (PT, current_buffer, Qlocal_map);
}
/* Add global keymap at the end. */
int can_return_switch_frame;
int fix_current_buffer;
{
+ volatile Lisp_Object from_string;
volatile int count = specpdl_ptr - specpdl;
/* How many keys there are in the current key sequence. */
volatile int function_key_possible = 0;
volatile int key_translation_possible = 0;
+ /* List of events for which a fake prefix key has been generated. */
+ volatile Lisp_Object fake_prefixed_keys = Qnil;
+
/* Save the status of key translation before each step,
so that we can restore this after downcasing. */
Lisp_Object prev_fkey_map;
int junk;
#endif
+ struct gcpro gcpro1;
+
+ GCPRO1 (fake_prefixed_keys);
raw_keybuf_count = 0;
last_nonmenu_event = Qnil;
&junk);
#endif /* GOBBLE_FIRST_EVENT */
- orig_local_map = get_local_map (PT, current_buffer, local_map);
- orig_keymap = get_local_map (PT, current_buffer, keymap);
+ orig_local_map = get_local_map (PT, current_buffer, Qlocal_map);
+ orig_keymap = get_local_map (PT, current_buffer, Qkeymap);
+ from_string = Qnil;
/* We jump here when the key sequence has been thoroughly changed, and
we need to rescan it starting from the beginning. When we jump here,
interrupted_kboard->kbd_queue);
}
mock_input = 0;
- orig_local_map = get_local_map (PT, current_buffer, local_map);
- orig_keymap = get_local_map (PT, current_buffer, keymap);
+ orig_local_map = get_local_map (PT, current_buffer, Qlocal_map);
+ orig_keymap = get_local_map (PT, current_buffer, Qkeymap);
goto replay_sequence;
}
#endif
if (EQ (key, Qt))
{
unbind_to (count, Qnil);
+ UNGCPRO;
return -1;
}
Fset_buffer (XWINDOW (selected_window)->buffer);
}
- orig_local_map = get_local_map (PT, current_buffer, local_map);
- orig_keymap = get_local_map (PT, current_buffer, keymap);
+ orig_local_map = get_local_map (PT, current_buffer, Qlocal_map);
+ orig_keymap = get_local_map (PT, current_buffer, Qkeymap);
goto replay_sequence;
}
keybuf[t++] = key;
mock_input = t;
Vquit_flag = Qnil;
- orig_local_map = get_local_map (PT, current_buffer, local_map);
- orig_keymap = get_local_map (PT, current_buffer, keymap);
+ orig_local_map = get_local_map (PT, current_buffer, Qlocal_map);
+ orig_keymap = get_local_map (PT, current_buffer, Qkeymap);
goto replay_sequence;
}
window = POSN_WINDOW (EVENT_START (key));
posn = POSN_BUFFER_POSN (EVENT_START (key));
- if (CONSP (posn))
+ if (CONSP (posn)
+ || (!NILP (fake_prefixed_keys)
+ && !NILP (Fmemq (key, fake_prefixed_keys))))
{
- /* We're looking at the second event of a
- sequence which we expanded before. Set
+ /* We're looking a second time at an event for which
+ we generated a fake prefix key. Set
last_real_key_start appropriately. */
if (t > 0)
last_real_key_start = t - 1;
if (! FRAME_LIVE_P (XFRAME (selected_frame)))
Fkill_emacs (Qnil);
- set_buffer_internal (XBUFFER (XWINDOW
- (window)->buffer)
-);
+ set_buffer_internal (XBUFFER (XWINDOW (window)->buffer));
orig_local_map = get_local_map (PT, current_buffer,
- local_map);
- orig_keymap = get_local_map (PT, current_buffer, keymap);
+ Qlocal_map);
+ orig_keymap = get_local_map (PT, current_buffer, Qkeymap);
goto replay_sequence;
}
&& XINT (pos) >= BEG && XINT (pos) <= Z)
{
map_here = get_local_map (XINT (pos),
- current_buffer, local_map);
+ current_buffer, Qlocal_map);
if (!EQ (map_here, orig_local_map))
{
orig_local_map = map_here;
goto replay_sequence;
}
map_here = get_local_map (XINT (pos),
- current_buffer, keymap);
+ current_buffer, Qkeymap);
if (!EQ (map_here, orig_keymap))
{
orig_keymap = map_here;
/* Expand mode-line and scroll-bar events into two events:
use posn as a fake prefix key. */
- if (SYMBOLP (posn))
+ if (SYMBOLP (posn)
+ && (NILP (fake_prefixed_keys)
+ || NILP (Fmemq (key, fake_prefixed_keys))))
{
if (t + 1 >= bufsize)
error ("Key sequence too long");
- keybuf[t] = posn;
- keybuf[t+1] = key;
- mock_input = t + 2;
- /* Zap the position in key, so we know that we've
- expanded it, and don't try to do so again. */
- POSN_BUFFER_POSN (EVENT_START (key))
- = Fcons (posn, Qnil);
+ keybuf[t] = posn;
+ keybuf[t + 1] = key;
+ mock_input = t + 2;
+
+ /* Record that a fake prefix key has been generated
+ for KEY. Don't modify the event; this would
+ prevent proper action when the event is pushed
+ back tino unread-command-events. */
+ fake_prefixed_keys = Fcons (key, fake_prefixed_keys);
/* If on a mode line string with a local keymap,
reconsider the key sequence with that keymap. */
goto replay_key;
}
+ else if (CONSP (POSN_STRING (EVENT_START (key)))
+ && NILP (from_string))
+ {
+ /* For a click on a string, i.e. overlay string or a
+ string displayed via the `display' property,
+ consider `local-map' and `keymap' properties of
+ that string. */
+ Lisp_Object string, pos, map, map2;
+
+ string = POSN_STRING (EVENT_START (key));
+ pos = XCDR (string);
+ string = XCAR (string);
+ if (XINT (pos) >= 0
+ && XINT (pos) < XSTRING (string)->size)
+ {
+ map = Fget_text_property (pos, Qlocal_map, string);
+ if (!NILP (map))
+ orig_local_map = map;
+ map2 = Fget_text_property (pos, Qkeymap, string);
+ if (!NILP (map2))
+ orig_keymap = map2;
+
+ if (!NILP (map) || !NILP (map2))
+ {
+ from_string = string;
+ goto replay_sequence;
+ }
+ }
+ }
}
else if (CONSP (XCDR (key))
&& CONSP (EVENT_START (key))
+ UNGCPRO;
return t;
}
}
#ifdef HAVE_X_WINDOWS
- if (display_busy_cursor_p)
- cancel_busy_cursor ();
+ if (display_hourglass_p)
+ cancel_hourglass ();
#endif
i = read_key_sequence (keybuf, (sizeof keybuf/sizeof (keybuf[0])),
then proceeding with a lenghty compuation, but it's not good
for code reading keys in a loop, like an input method. */
#ifdef HAVE_X_WINDOWS
- if (display_busy_cursor_p)
- start_busy_cursor ();
+ if (display_hourglass_p)
+ start_hourglass ();
#endif
#endif
DEFUN ("read-key-sequence-vector", Fread_key_sequence_vector,
Sread_key_sequence_vector, 1, 5, 0,
"Like `read-key-sequence' but always return a vector.")
- /* Don't break the following line for documentation's sake. */
- (prompt, continue_echo, dont_downcase_last, can_return_switch_frame, command_loop)
+ (prompt, continue_echo, dont_downcase_last, can_return_switch_frame,
+ command_loop)
Lisp_Object prompt, continue_echo, dont_downcase_last;
Lisp_Object can_return_switch_frame, command_loop;
{
}
#ifdef HAVE_X_WINDOWS
- if (display_busy_cursor_p)
- cancel_busy_cursor ();
+ if (display_hourglass_p)
+ cancel_hourglass ();
#endif
i = read_key_sequence (keybuf, (sizeof keybuf/sizeof (keybuf[0])),
! NILP (can_return_switch_frame), 0);
#ifdef HAVE_X_WINDOWS
- if (display_busy_cursor_p)
- start_busy_cursor ();
+ if (display_hourglass_p)
+ start_hourglass ();
#endif
if (i == -1)
{
/* No, so use major and minor mode keymaps and keymap property. */
int extra_maps = 2;
- Lisp_Object map = get_local_map (PT, current_buffer, keymap);
+ Lisp_Object map = get_local_map (PT, current_buffer, Qkeymap);
if (!NILP (map))
extra_maps = 3;
nmaps = current_minor_maps (NULL, &tmaps);
bcopy (tmaps, maps, nmaps * sizeof (maps[0]));
if (!NILP (map))
maps[nmaps++] = map;
- maps[nmaps++] = get_local_map (PT, current_buffer, local_map);
+ maps[nmaps++] = get_local_map (PT, current_buffer, Qlocal_map);
}
maps[nmaps++] = current_global_map;
if (old_timers_run != timers_run && do_display)
{
- redisplay_preserve_echo_area ();
+ redisplay_preserve_echo_area (8);
/* The following fixes a bug when using lazy-lock with
lazy-lock-defer-on-the-fly set to t, i.e. when fontifying
from an idle timer function. The symptom of the bug is that
if (FRAMEP (internal_last_event_frame)
&& !EQ (internal_last_event_frame, selected_frame))
do_switch_frame (make_lispy_switch_frame (internal_last_event_frame),
- Qnil, 0);
+ 0, 0);
_longjmp (getcjmp, 1);
}
}
#ifdef MULTI_KBOARD
+
+/* Free KB and memory referenced from it. */
+
void
delete_kboard (kb)
- KBOARD *kb;
+ KBOARD *kb;
{
KBOARD **kbp;
+
for (kbp = &all_kboards; *kbp != kb; kbp = &(*kbp)->next_kboard)
if (*kbp == NULL)
abort ();
*kbp = kb->next_kboard;
+
+ /* Prevent a dangling reference to KB. */
+ if (kb == current_kboard
+ && FRAMEP (selected_frame)
+ && FRAME_LIVE_P (XFRAME (selected_frame)))
+ {
+ current_kboard = XFRAME (selected_frame)->kboard;
+ if (current_kboard == kb)
+ abort ();
+ }
+
wipe_kboard (kb);
xfree (kb);
}
-#endif
+
+#endif /* MULTI_KBOARD */
void
init_keyboard ()
"Per-terminal keymap that overrides all other local keymaps.\n\
If this variable is non-nil, it is used as a keymap instead of the\n\
buffer's local map, and the minor mode keymaps and text property keymaps.\n\
-This variable is intended to let commands such as `universal-argumemnt'\n\
+This variable is intended to let commands such as `universal-argument'\n\
set up a different keymap for reading the next command.");
DEFVAR_LISP ("overriding-local-map", &Voverriding_local_map,