/* Keyboard and mouse input; editor command loop.
Copyright (C) 1985, 1986, 1987, 1988, 1989, 1993, 1994, 1995,
1996, 1997, 1999, 2000, 2001, 2002, 2003, 2004,
- 2005 Free Software Foundation, Inc.
+ 2005, 2006 Free Software Foundation, Inc.
This file is part of GNU Emacs.
/* Nonzero means C-g should cause immediate error-signal. */
int immediate_quit;
+/* The user's hook function for outputting an error message. */
+Lisp_Object Vcommand_error_function;
+
/* The user's ERASE setting. */
Lisp_Object Vtty_erase_char;
command is stored in this-original-command. It is nil otherwise. */
Lisp_Object Vthis_original_command;
-/* The value of point when the last command was executed. */
+/* The value of point when the last command was started. */
int last_point_position;
/* The buffer that was current when the last command was started. */
Lisp_Object last_point_position_buffer;
+/* The window that was selected when the last command was started. */
+Lisp_Object last_point_position_window;
+
/* The frame in which the last input event occurred, or Qmacro if the
last event came from a macro. We use this to determine when to
generate switch-frame events. This may be cleared by functions
#endif
Lisp_Object Qdrag_n_drop;
Lisp_Object Qsave_session;
+#ifdef MAC_OS
+Lisp_Object Qmac_apple_event;
+#endif
/* Lisp_Object Qmouse_movement; - also an event header */
static EMACS_TIME timer_last_idleness_start_time;
+/* If non-nil, events produced by disabled menu items and tool-bar
+ buttons are not ignored. Help functions bind this to allow help on
+ those items and buttons. */
+Lisp_Object Venable_disabled_menus_and_buttons;
+
\f
/* Global variable declarations. */
else
echo_string = concat2 (echo_string, build_string (" "));
}
+ else if (STRINGP (echo_string))
+ echo_string = concat2 (echo_string, build_string (" "));
current_kboard->echo_string
= concat2 (echo_string, make_string (buffer, ptr - buffer));
/* Do nothing if we have already put a dash at the end. */
if (SCHARS (current_kboard->echo_string) > 1)
{
- Lisp_Object last_char, prev_char, idx;
+ Lisp_Object last_char, prev_char, idx;
- idx = make_number (SCHARS (current_kboard->echo_string) - 2);
- prev_char = Faref (current_kboard->echo_string, idx);
+ idx = make_number (SCHARS (current_kboard->echo_string) - 2);
+ prev_char = Faref (current_kboard->echo_string, idx);
- idx = make_number (SCHARS (current_kboard->echo_string) - 1);
- last_char = Faref (current_kboard->echo_string, idx);
+ idx = make_number (SCHARS (current_kboard->echo_string) - 1);
+ last_char = Faref (current_kboard->echo_string, idx);
- if (XINT (last_char) == '-' && XINT (prev_char) != ' ')
- return;
+ if (XINT (last_char) == '-' && XINT (prev_char) != ' ')
+ return;
}
/* Put a dash at the end of the buffer temporarily,
/* Handle throw from read_minibuf when using minibuffer
while it's active but we're in another window. */
if (STRINGP (val))
- Fsignal (Qerror, Fcons (val, Qnil));
+ xsignal1 (Qerror, val);
return unbind_to (count, Qnil);
}
Lisp_Object data;
char *context;
{
- Lisp_Object stream;
- int kill_emacs_p = 0;
struct frame *sf = SELECTED_FRAME ();
+ /* The immediate context is not interesting for Quits,
+ since they are asyncronous. */
+ if (EQ (XCAR (data), Qquit))
+ Vsignaling_function = Qnil;
+
Vquit_flag = Qnil;
Vinhibit_quit = Qt;
- clear_message (1, 0);
+ /* Use user's specified output function if any. */
+ if (!NILP (Vcommand_error_function))
+ call3 (Vcommand_error_function, data,
+ build_string (context ? context : ""),
+ Vsignaling_function);
/* If the window system or terminal frame hasn't been initialized
- yet, or we're not interactive, it's best to dump this message out
- to stderr and exit. */
- if (!sf->glyphs_initialized_p
- /* This is the case of the frame dumped with Emacs, when we're
- running under a window system. */
- || (!NILP (Vwindow_system)
- && !inhibit_window_system
- && FRAME_TERMCAP_P (sf))
- || noninteractive)
- {
- stream = Qexternal_debugging_output;
- kill_emacs_p = 1;
+ yet, or we're not interactive, write the message to stderr and exit. */
+ else if (!sf->glyphs_initialized_p
+ /* This is the case of the frame dumped with Emacs, when we're
+ running under a window system. */
+ || (!NILP (Vwindow_system)
+ && !inhibit_window_system
+ && FRAME_TERMCAP_P (sf))
+ || noninteractive)
+ {
+ print_error_message (data, Qexternal_debugging_output,
+ context, Vsignaling_function);
+ Fterpri (Qexternal_debugging_output);
+ Fkill_emacs (make_number (-1));
}
else
{
+ clear_message (1, 0);
Fdiscard_input ();
message_log_maybe_newline ();
bitch_at_user ();
- stream = Qt;
- }
-
- /* The immediate context is not interesting for Quits,
- since they are asyncronous. */
- if (EQ (XCAR (data), Qquit))
- Vsignaling_function = Qnil;
- print_error_message (data, stream, context, Vsignaling_function);
+ print_error_message (data, Qt, context, Vsignaling_function);
+ }
Vsignaling_function = Qnil;
-
- /* If the window system or terminal frame hasn't been initialized
- yet, or we're in -batch mode, this error should cause Emacs to exit. */
- if (kill_emacs_p)
- {
- Fterpri (stream);
- Fkill_emacs (make_number (-1));
- }
}
\f
Lisp_Object command_loop_1 ();
Lisp_Object keybuf[30];
int i;
int no_direct;
- int prev_modiff;
+ int prev_modiff = 0;
struct buffer *prev_buffer = NULL;
#ifdef MULTI_KBOARD
int was_locked = single_kboard;
safe_run_hooks (Qdeferred_action_function);
}
- Vmemory_full = Qnil;
-
/* Do this after running Vpost_command_hook, for consistency. */
current_kboard->Vlast_command = Vthis_command;
current_kboard->Vreal_last_command = real_this_command;
int count = SPECPDL_INDEX ();
specbind (Qinhibit_quit, Qt);
- Fsit_for (Vminibuffer_message_timeout, Qnil, Qnil);
+ sit_for (Vminibuffer_message_timeout, 0, 2);
+
/* Clear the echo area. */
message2 (0, 0, 0);
safe_run_hooks (Qecho_area_clear_hook);
prev_buffer = current_buffer;
prev_modiff = MODIFF;
last_point_position = PT;
+ last_point_position_window = selected_window;
XSETBUFFER (last_point_position_buffer, prev_buffer);
/* By default, we adjust point to a boundary of a region that
if we used a mouse menu to read the input, or zero otherwise. If
USED_MOUSE_MENU is null, we don't dereference it.
+ If END_TIME is non-null, it is a pointer to an EMACS_TIME
+ specifying the maximum time to wait until. If no input arrives by
+ that time, stop waiting and return nil.
+
Value is t if we showed a menu and the user rejected it. */
Lisp_Object
-read_char (commandflag, nmaps, maps, prev_event, used_mouse_menu)
+read_char (commandflag, nmaps, maps, prev_event, used_mouse_menu, end_time)
int commandflag;
int nmaps;
Lisp_Object *maps;
Lisp_Object prev_event;
int *used_mouse_menu;
+ EMACS_TIME *end_time;
{
volatile Lisp_Object c;
int count;
start echoing if enough time elapses. */
if (minibuf_level == 0
+ && !end_time
&& !current_kboard->immediate_echo
&& this_command_key_count > 0
&& ! noninteractive
/* Or not echoing before and echoing allowed. */
|| (!echo_kboard && ok_to_echo_at_next_pause)))
{
- Lisp_Object tem0;
-
/* After a mouse event, start echoing right away.
This is because we are probably about to display a menu,
and we don't want to delay before doing so. */
echo_now ();
else
{
- int sec, usec;
- double duration = extract_float (Vecho_keystrokes);
- sec = (int) duration;
- usec = (duration - sec) * 1000000;
+ Lisp_Object tem0;
+
save_getcjmp (save_jump);
restore_getcjmp (local_getcjmp);
- tem0 = sit_for (sec, usec, 1, 1, 0);
+ tem0 = sit_for (Vecho_keystrokes, 1, 1);
restore_getcjmp (save_jump);
if (EQ (tem0, Qt)
&& ! CONSP (Vunread_command_events))
&& XINT (Vauto_save_timeout) > 0)
{
Lisp_Object tem0;
+ int timeout = delay_level * XFASTINT (Vauto_save_timeout) / 4;
save_getcjmp (save_jump);
restore_getcjmp (local_getcjmp);
- tem0 = sit_for (delay_level * XFASTINT (Vauto_save_timeout) / 4,
- 0, 1, 1, 0);
+ tem0 = sit_for (make_number (timeout), 1, 1);
restore_getcjmp (save_jump);
if (EQ (tem0, Qt)
{
KBOARD *kb;
+ if (end_time)
+ {
+ EMACS_TIME now;
+ EMACS_GET_TIME (now);
+ if (EMACS_TIME_GE (now, *end_time))
+ goto exit;
+ }
+
/* Actually read a character, waiting if necessary. */
save_getcjmp (save_jump);
restore_getcjmp (local_getcjmp);
timer_start_idle ();
- c = kbd_buffer_get_event (&kb, used_mouse_menu);
+ c = kbd_buffer_get_event (&kb, used_mouse_menu, end_time);
restore_getcjmp (save_jump);
#ifdef MULTI_KBOARD
cancel_echoing ();
do
- c = read_char (0, 0, 0, Qnil, 0);
+ c = read_char (0, 0, 0, Qnil, 0, NULL);
while (BUFFERP (c));
/* Remove the help from the frame */
unbind_to (count, Qnil);
{
cancel_echoing ();
do
- c = read_char (0, 0, 0, Qnil, 0);
+ c = read_char (0, 0, 0, Qnil, 0, NULL);
while (BUFFERP (c));
}
}
We always read and discard one event. */
static Lisp_Object
-kbd_buffer_get_event (kbp, used_mouse_menu)
+kbd_buffer_get_event (kbp, used_mouse_menu, end_time)
KBOARD **kbp;
int *used_mouse_menu;
+ EMACS_TIME *end_time;
{
register int c;
Lisp_Object obj;
if (!NILP (do_mouse_tracking) && some_mouse_moved ())
break;
#endif
- {
+ if (end_time)
+ {
+ EMACS_TIME duration;
+ EMACS_GET_TIME (duration);
+ EMACS_SUB_TIME (duration, *end_time, duration);
+ if (EMACS_TIME_NEG_P (duration))
+ return Qnil;
+ else
+ wait_reading_process_output (EMACS_SECS (duration),
+ EMACS_USECS (duration),
+ -1, 1, Qnil, NULL, 0);
+ }
+ else
wait_reading_process_output (0, 0, -1, 1, Qnil, NULL, 0);
- if (!interrupt_input && kbd_fetch_ptr == kbd_store_ptr)
- /* Pass 1 for EXPECT since we just waited to have input. */
- read_avail_input (1);
- }
+ if (!interrupt_input && kbd_fetch_ptr == kbd_store_ptr)
+ /* Pass 1 for EXPECT since we just waited to have input. */
+ read_avail_input (1);
#endif /* not VMS */
}
XSETINT (*x, wx);
XSETINT (*y, wy);
- if (part == ON_MODE_LINE || part == ON_HEADER_LINE)
+ if (part == ON_TEXT)
+ {
+ wx += WINDOW_LEFT_MARGIN_WIDTH (w);
+ }
+ else if (part == ON_MODE_LINE || part == ON_HEADER_LINE)
{
/* Mode line or header line. Look for a string under
the mouse that may have a `local-map' property. */
Lisp_Object head, position;
Lisp_Object files;
- /* The frame_or_window field should be a cons of the frame in
- which the event occurred and a list of the filenames
- dropped. */
- if (! CONSP (event->frame_or_window))
- abort ();
-
- f = XFRAME (XCAR (event->frame_or_window));
- files = XCDR (event->frame_or_window);
+ f = XFRAME (event->frame_or_window);
+ files = event->arg;
/* Ignore mouse events that were made on frames that
have been deleted. */
case SAVE_SESSION_EVENT:
return Qsave_session;
+#ifdef MAC_OS
+ case MAC_APPLE_EVENT:
+ {
+ Lisp_Object spec[2];
+
+ spec[0] = event->x;
+ spec[1] = event->y;
+ return Fcons (Qmac_apple_event,
+ Fcons (Fvector (2, spec),
+ Fcons (event->arg, Qnil)));
+ }
+#endif
+
/* The 'kind' field of the event is something we don't recognize. */
default:
abort ();
if (SYMBOLP (item))
{
tem = Fget (item, Qmenu_enable);
- if (!NILP (tem))
+ if (!NILP (Venable_disabled_menus_and_buttons))
+ AREF (item_properties, ITEM_PROPERTY_ENABLE) = Qt;
+ else if (!NILP (tem))
AREF (item_properties, ITEM_PROPERTY_ENABLE) = tem;
}
}
item = XCDR (item);
if (EQ (tem, QCenable))
- AREF (item_properties, ITEM_PROPERTY_ENABLE) = XCAR (item);
+ {
+ if (!NILP (Venable_disabled_menus_and_buttons))
+ AREF (item_properties, ITEM_PROPERTY_ENABLE) = Qt;
+ else
+ AREF (item_properties, ITEM_PROPERTY_ENABLE) = XCAR (item);
+ }
else if (EQ (tem, QCvisible) && !notreal)
{
/* If got a visible property and that evaluates to nil
/* Function prototypes. */
static void init_tool_bar_items P_ ((Lisp_Object));
-static void process_tool_bar_item P_ ((Lisp_Object, Lisp_Object));
+static void process_tool_bar_item P_ ((Lisp_Object, Lisp_Object, Lisp_Object, void*));
static int parse_tool_bar_item P_ ((Lisp_Object, Lisp_Object));
static void append_tool_bar_item P_ ((void));
keymap = get_keymap (access_keymap (maps[i], Qtool_bar, 1, 0, 1), 0, 1);
if (CONSP (keymap))
- {
- Lisp_Object tail;
-
- /* KEYMAP is a list `(keymap (KEY . BINDING) ...)'. */
- for (tail = keymap; CONSP (tail); tail = XCDR (tail))
- {
- Lisp_Object keydef = XCAR (tail);
- if (CONSP (keydef))
- process_tool_bar_item (XCAR (keydef), XCDR (keydef));
- }
- }
+ map_keymap (keymap, process_tool_bar_item, Qnil, NULL, 1);
}
Vinhibit_quit = oquit;
/* Process the definition of KEY which is DEF. */
static void
-process_tool_bar_item (key, def)
- Lisp_Object key, def;
+process_tool_bar_item (key, def, data, args)
+ Lisp_Object key, def, data;
+ void *args;
{
int i;
extern Lisp_Object Qundefined;
value = XCAR (XCDR (item));
if (EQ (key, QCenable))
- /* `:enable FORM'. */
- PROP (TOOL_BAR_ITEM_ENABLED_P) = value;
+ {
+ /* `:enable FORM'. */
+ if (!NILP (Venable_disabled_menus_and_buttons))
+ PROP (TOOL_BAR_ITEM_ENABLED_P) = Qt;
+ else
+ PROP (TOOL_BAR_ITEM_ENABLED_P) = value;
+ }
else if (EQ (key, QCvisible))
{
/* `:visible FORM'. If got a visible property and that
orig_defn_macro = current_kboard->defining_kbd_macro;
current_kboard->defining_kbd_macro = Qnil;
do
- obj = read_char (commandflag, 0, 0, Qt, 0);
+ obj = read_char (commandflag, 0, 0, Qt, 0, NULL);
while (BUFFERP (obj));
current_kboard->defining_kbd_macro = orig_defn_macro;
/* Handle a symbol whose function definition is a keymap
or an array. */
if (SYMBOLP (next) && !NILP (Ffboundp (next))
- && (!NILP (Farrayp (XSYMBOL (next)->function))
+ && (ARRAYP (XSYMBOL (next)->function)
|| KEYMAPP (XSYMBOL (next)->function)))
next = XSYMBOL (next)->function;
/* Read the first char of the sequence specially, before setting
up any keymaps, in case a filter runs and switches buffers on us. */
first_event = read_char (NILP (prompt), 0, submaps, last_nonmenu_event,
- &junk);
+ &junk, NULL);
#endif /* GOBBLE_FIRST_EVENT */
orig_local_map = get_local_map (PT, current_buffer, Qlocal_map);
#endif
key = read_char (NILP (prompt), nmaps,
(Lisp_Object *) submaps, last_nonmenu_event,
- &used_mouse_menu);
+ &used_mouse_menu, NULL);
}
/* read_char returns t when it shows a menu and the user rejects it.
/* Don't downcase the last character if the caller says don't.
Don't downcase it if the result is undefined, either. */
if ((dont_downcase_last || first_binding >= nmaps)
+ && t > 0
&& t - 1 == original_uppercase_position)
keybuf[t - 1] = original_uppercase;
while (1)
{
- final = Findirect_function (cmd);
+ final = Findirect_function (cmd, Qnil);
if (CONSP (final) && (tem = Fcar (final), EQ (tem, Qautoload)))
{
\f
DEFUN ("execute-extended-command", Fexecute_extended_command, Sexecute_extended_command,
1, 1, "P",
- doc: /* Read function name, then read its arguments and call it. */)
+ doc: /* Read function name, then read its arguments and call it.
+
+To pass a numeric argument to the command you are invoking with, specify
+the numeric argument to this command.
+
+Noninteractively, the argument PREFIXARG is the prefix argument to
+give to the command you invoke, if it asks for an argument. */)
(prefixarg)
Lisp_Object prefixarg;
{
Qmouse_movement)))
{
/* But first wait, and skip the message if there is input. */
- int delay_time;
- if (!NILP (echo_area_buffer[0]))
- /* This command displayed something in the echo area;
- so wait a few seconds, then display our suggestion message. */
- delay_time = (NUMBERP (Vsuggest_key_bindings)
- ? XINT (Vsuggest_key_bindings) : 2);
+ Lisp_Object waited;
+
+ /* If this command displayed something in the echo area;
+ wait a few seconds, then display our suggestion message. */
+ if (NILP (echo_area_buffer[0]))
+ waited = sit_for (make_number (0), 0, 2);
+ else if (NUMBERP (Vsuggest_key_bindings))
+ waited = sit_for (Vminibuffer_message_timeout, 0, 2);
else
- /* This command left the echo area empty,
- so display our message immediately. */
- delay_time = 0;
+ waited = sit_for (make_number (2), 0, 2);
- if (!NILP (Fsit_for (make_number (delay_time), Qnil, Qnil))
- && ! CONSP (Vunread_command_events))
+ if (!NILP (waited) && ! CONSP (Vunread_command_events))
{
Lisp_Object binding;
char *newmessage;
message2_nolog (newmessage,
strlen (newmessage),
STRING_MULTIBYTE (binding));
- if (!NILP (Fsit_for ((NUMBERP (Vsuggest_key_bindings)
- ? Vsuggest_key_bindings : make_number (2)),
- Qnil, Qnil))
- && message_p)
+ if (NUMBERP (Vsuggest_key_bindings))
+ waited = sit_for (Vsuggest_key_bindings, 0, 2);
+ else
+ waited = sit_for (make_number (2), 0, 2);
+
+ if (!NILP (waited) && message_p)
restore_message ();
unbind_to (count, Qnil);
CHECK_LIVE_WINDOW (frame_or_window);
w = XWINDOW (frame_or_window);
- XSETINT (x, (WINDOW_TO_FRAME_PIXEL_X (w, XINT (x))
+ XSETINT (x, (XINT (x)
+ + WINDOW_LEFT_EDGE_X (w)
+ (NILP (whole)
? window_box_left_offset (w, TEXT_AREA)
- : - (WINDOW_LEFT_SCROLL_BAR_COLS (w)
- * WINDOW_FRAME_COLUMN_WIDTH (w)))));
+ : 0)));
XSETINT (y, WINDOW_TO_FRAME_PIXEL_Y (w, XINT (y)));
frame_or_window = w->frame;
}
{
Lisp_Object tem;
+ if (NILP (window))
+ window = selected_window;
+
tem = Fpos_visible_in_window_p (pos, window, Qt);
if (!NILP (tem))
- tem = Fposn_at_x_y (XCAR (tem), XCAR (XCDR (tem)), window, Qnil);
+ {
+ Lisp_Object x = XCAR (tem);
+ Lisp_Object y = XCAR (XCDR (tem));
+
+ /* Point invisible due to hscrolling? */
+ if (XINT (x) < 0)
+ return Qnil;
+ tem = Fposn_at_x_y (x, y, window, Qnil);
+ }
+
return tem;
}
Qsave_session = intern ("save-session");
staticpro (&Qsave_session);
+#ifdef MAC_OS
+ Qmac_apple_event = intern ("mac-apple-event");
+ staticpro (&Qmac_apple_event);
+#endif
+
Qusr1_signal = intern ("usr1-signal");
staticpro (&Qusr1_signal);
Qusr2_signal = intern ("usr2-signal");
Fset (Qinput_method_use_echo_area, Qnil);
last_point_position_buffer = Qnil;
+ last_point_position_window = Qnil;
{
struct event_head *p;
The value of that variable is passed to `quit-flag' and later causes a
peculiar kind of quitting. */);
Vthrow_on_input = Qnil;
+
+ DEFVAR_LISP ("command-error-function", &Vcommand_error_function,
+ doc: /* If non-nil, function to output error messages.
+The arguments are the error data, a list of the form
+ (SIGNALED-CONDITIONS . SIGNAL-DATA)
+such as just as `condition-case' would bind its variable to,
+the context (a string which normally goes at the start of the message),
+and the Lisp function within which the error was signaled. */);
+ Vcommand_error_function = Qnil;
+
+ DEFVAR_LISP ("enable-disabled-menus-and-buttons",
+ &Venable_disabled_menus_and_buttons,
+ doc: /* If non-nil, don't ignore events produced by disabled menu items and tool-bar.
+
+Help functions bind this to allow help on disabled menu items
+and tool-bar buttons. */);
+ Venable_disabled_menus_and_buttons = Qnil;
}
void