home
***
CD-ROM
|
disk
|
FTP
|
other
***
search
/
OS/2 Shareware BBS: 5 Edit
/
05-Edit.zip
/
e20313sr.zip
/
emacs
/
20.3.1
/
src
/
xmenu.c
< prev
next >
Wrap
C/C++ Source or Header
|
1999-07-31
|
93KB
|
3,270 lines
/* X Communication module for terminals which understand the X protocol.
Copyright (C) 1986, 1988, 1993, 1994, 1996 Free Software Foundation, Inc.
This file is part of GNU Emacs.
GNU Emacs is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2, or (at your option)
any later version.
GNU Emacs is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with GNU Emacs; see the file COPYING. If not, write to
the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
Boston, MA 02111-1307, USA. */
/* X pop-up deck-of-cards menu facility for gnuemacs.
*
* Written by Jon Arnold and Roman Budzianowski
* Mods and rewrite by Robert Krawitz
*
*/
/* Modified by Fred Pierresteguy on December 93
to make the popup menus and menubar use the Xt. */
/* Rewritten for clarity and GC protection by rms in Feb 94. */
/* Modified for emx by Jeremy Bowen, May 1999 based on patches
to v19.33 by Eberhard Mattes */
/* On 4.3 this loses if it comes after xterm.h. */
#include <signal.h>
#include <config.h>
#include <stdio.h>
#include "lisp.h"
#include "termhooks.h"
#include "frame.h"
#include "window.h"
#include "keyboard.h"
#include "blockinput.h"
#include "puresize.h"
#include "buffer.h"
#ifdef HAVE_PM
#include "pmterm.h"
#include "pmemacs.h"
#else /* not HAVE_PM */
#ifdef MSDOS
#include "msdos.h"
#endif
#ifdef HAVE_X_WINDOWS
/* This may include sys/types.h, and that somehow loses
if this is not done before the other system files. */
#include "xterm.h"
#endif
#endif /* not HAVE_PM */
/* Load sys/types.h if not already loaded.
In some systems loading it twice is suicidal. */
#ifndef makedev
#include <sys/types.h>
#endif
#include "dispextern.h"
#ifndef HAVE_PM
#ifdef HAVE_X_WINDOWS
#ifdef USE_X_TOOLKIT
#include <X11/Xlib.h>
#include <X11/IntrinsicP.h>
#include <X11/CoreP.h>
#include <X11/StringDefs.h>
#include <X11/Shell.h>
#ifdef USE_LUCID
#include <X11/Xaw/Paned.h>
#endif /* USE_LUCID */
#include "../lwlib/lwlib.h"
#else /* not USE_X_TOOLKIT */
#include "../oldXMenu/XMenu.h"
#endif /* not USE_X_TOOLKIT */
#endif /* HAVE_X_WINDOWS */
#endif /* not HAVE_PM */
#define min(x,y) (((x) < (y)) ? (x) : (y))
#define max(x,y) (((x) > (y)) ? (x) : (y))
#ifndef TRUE
#define TRUE 1
#define FALSE 0
#endif /* no TRUE */
Lisp_Object Vmenu_updating_frame;
Lisp_Object Qdebug_on_next_call;
Lisp_Object Qmenu_alias;
extern Lisp_Object Qmenu_enable;
extern Lisp_Object Qmenu_bar;
extern Lisp_Object Qmouse_click, Qevent_kind;
extern Lisp_Object QCtoggle, QCradio;
#ifdef HAVE_PM
static int pm_menu_button;
static int pm_align_menu_key_descriptions;
static int pm_popup_menu_align_top;
#endif /* HAVE_PM */
extern Lisp_Object Voverriding_local_map;
extern Lisp_Object Voverriding_local_map_menu_flag;
extern Lisp_Object Qoverriding_local_map, Qoverriding_terminal_local_map;
extern Lisp_Object Qmenu_bar_update_hook;
#ifdef USE_X_TOOLKIT
extern void set_frame_menubar ();
#ifndef HAVE_PM
extern void process_expose_from_menu ();
extern XtAppContext Xt_app_con;
#endif /* not HAVE_PM */
static Lisp_Object xdialog_show ();
void popup_get_selection ();
#endif
static Lisp_Object xmenu_show ();
static void keymap_panes ();
static void single_keymap_panes ();
static void single_menu_item ();
static void list_of_panes ();
static void list_of_items ();
/* This holds a Lisp vector that holds the results of decoding
the keymaps or alist-of-alists that specify a menu.
It describes the panes and items within the panes.
Each pane is described by 3 elements in the vector:
t, the pane name, the pane's prefix key.
Then follow the pane's items, with 5 elements per item:
the item string, the enable flag, the item's value,
the definition, and the equivalent keyboard key's description string.
In some cases, multiple levels of menus may be described.
A single vector slot containing nil indicates the start of a submenu.
A single vector slot containing lambda indicates the end of a submenu.
The submenu follows a menu item which is the way to reach the submenu.
A single vector slot containing quote indicates that the
following items should appear on the right of a dialog box.
Using a Lisp vector to hold this information while we decode it
takes care of protecting all the data from GC. */
#define MENU_ITEMS_PANE_NAME 1
#define MENU_ITEMS_PANE_PREFIX 2
#define MENU_ITEMS_PANE_LENGTH 3
#define MENU_ITEMS_ITEM_NAME 0
#define MENU_ITEMS_ITEM_ENABLE 1
#define MENU_ITEMS_ITEM_VALUE 2
#define MENU_ITEMS_ITEM_EQUIV_KEY 3
#define MENU_ITEMS_ITEM_DEFINITION 4
#define MENU_ITEMS_ITEM_LENGTH 5
static Lisp_Object menu_items;
/* Number of slots currently allocated in menu_items. */
static int menu_items_allocated;
/* This is the index in menu_items of the first empty slot. */
static int menu_items_used;
/* The number of panes currently recorded in menu_items,
excluding those within submenus. */
static int menu_items_n_panes;
/* Current depth within submenus. */
static int menu_items_submenu_depth;
/* Flag which when set indicates a dialog or menu has been posted by
Xt on behalf of one of the widget sets. */
static int popup_activated_flag;
static int next_menubar_widget_id;
/* This is set nonzero after the user activates the menu bar, and set
to zero again after the menu bars are redisplayed by prepare_menu_bar.
While it is nonzero, all calls to set_frame_menubar go deep.
I don't understand why this is needed, but it does seem to be
needed on Motif, according to Marcus Daniels <marcus@sysc.pdx.edu>. */
int pending_menu_activation;
#ifdef USE_X_TOOLKIT
#ifndef HAVE_PM
/* Return the frame whose ->output_data.x->id equals ID, or 0 if none. */
static struct frame *
menubar_id_to_frame (id)
LWLIB_ID id;
{
Lisp_Object tail, frame;
FRAME_PTR f;
for (tail = Vframe_list; GC_CONSP (tail); tail = XCONS (tail)->cdr)
{
frame = XCONS (tail)->car;
if (!GC_FRAMEP (frame))
continue;
f = XFRAME (frame);
if (f->output_data.nothing == 1)
continue;
if (f->output_data.x->id == id)
return f;
}
return 0;
}
#endif /* not HAVE_PM */
#endif
/* Initialize the menu_items structure if we haven't already done so.
Also mark it as currently empty. */
static void
init_menu_items ()
{
if (NILP (menu_items))
{
menu_items_allocated = 60;
menu_items = Fmake_vector (make_number (menu_items_allocated), Qnil);
}
menu_items_used = 0;
menu_items_n_panes = 0;
menu_items_submenu_depth = 0;
}
/* Call at the end of generating the data in menu_items.
This fills in the number of items in the last pane. */
static void
finish_menu_items ()
{
}
/* Call when finished using the data for the current menu
in menu_items. */
static void
discard_menu_items ()
{
/* Free the structure if it is especially large.
Otherwise, hold on to it, to save time. */
if (menu_items_allocated > 200)
{
menu_items = Qnil;
menu_items_allocated = 0;
}
}
/* Make the menu_items vector twice as large. */
static void
grow_menu_items ()
{
Lisp_Object old;
int old_size = menu_items_allocated;
old = menu_items;
menu_items_allocated *= 2;
menu_items = Fmake_vector (make_number (menu_items_allocated), Qnil);
bcopy (XVECTOR (old)->contents, XVECTOR (menu_items)->contents,
old_size * sizeof (Lisp_Object));
}
/* Begin a submenu. */
static void
push_submenu_start ()
{
if (menu_items_used + 1 > menu_items_allocated)
grow_menu_items ();
XVECTOR (menu_items)->contents[menu_items_used++] = Qnil;
menu_items_submenu_depth++;
}
/* End a submenu. */
static void
push_submenu_end ()
{
if (menu_items_used + 1 > menu_items_allocated)
grow_menu_items ();
XVECTOR (menu_items)->contents[menu_items_used++] = Qlambda;
menu_items_submenu_depth--;
}
/* Indicate boundary between left and right. */
static void
push_left_right_boundary ()
{
if (menu_items_used + 1 > menu_items_allocated)
grow_menu_items ();
XVECTOR (menu_items)->contents[menu_items_used++] = Qquote;
}
/* Start a new menu pane in menu_items..
NAME is the pane name. PREFIX_VEC is a prefix key for this pane. */
static void
push_menu_pane (name, prefix_vec)
Lisp_Object name, prefix_vec;
{
if (menu_items_used + MENU_ITEMS_PANE_LENGTH > menu_items_allocated)
grow_menu_items ();
if (menu_items_submenu_depth == 0)
menu_items_n_panes++;
XVECTOR (menu_items)->contents[menu_items_used++] = Qt;
XVECTOR (menu_items)->contents[menu_items_used++] = name;
XVECTOR (menu_items)->contents[menu_items_used++] = prefix_vec;
}
/* Push one menu item into the current pane.
NAME is the string to display. ENABLE if non-nil means
this item can be selected. KEY is the key generated by
choosing this item, or nil if this item doesn't really have a definition.
DEF is the definition of this item.
EQUIV is the textual description of the keyboard equivalent for
this item (or nil if none). */
static void
push_menu_item (name, enable, key, def, equiv)
Lisp_Object name, enable, key, def, equiv;
{
if (menu_items_used + MENU_ITEMS_ITEM_LENGTH > menu_items_allocated)
grow_menu_items ();
XVECTOR (menu_items)->contents[menu_items_used++] = name;
XVECTOR (menu_items)->contents[menu_items_used++] = enable;
XVECTOR (menu_items)->contents[menu_items_used++] = key;
XVECTOR (menu_items)->contents[menu_items_used++] = equiv;
XVECTOR (menu_items)->contents[menu_items_used++] = def;
}
/* Look through KEYMAPS, a vector of keymaps that is NMAPS long,
and generate menu panes for them in menu_items.
If NOTREAL is nonzero,
don't bother really computing whether an item is enabled. */
static void
keymap_panes (keymaps, nmaps, notreal)
Lisp_Object *keymaps;
int nmaps;
int notreal;
{
int mapno;
init_menu_items ();
/* Loop over the given keymaps, making a pane for each map.
But don't make a pane that is empty--ignore that map instead.
P is the number of panes we have made so far. */
for (mapno = 0; mapno < nmaps; mapno++)
single_keymap_panes (keymaps[mapno], Qnil, Qnil, notreal, 10);
finish_menu_items ();
}
/* This is a recursive subroutine of keymap_panes.
It handles one keymap, KEYMAP.
The other arguments are passed along
or point to local variables of the previous function.
If NOTREAL is nonzero, only check for equivalent key bindings, don't
evaluate expressions in menu items and don't make any menu.
If we encounter submenus deeper than MAXDEPTH levels, ignore them. */
static void
single_keymap_panes (keymap, pane_name, prefix, notreal, maxdepth)
Lisp_Object keymap;
Lisp_Object pane_name;
Lisp_Object prefix;
int notreal;
int maxdepth;
{
Lisp_Object pending_maps = Qnil;
Lisp_Object tail, item;
struct gcpro gcpro1, gcpro2;
int notbuttons = 0;
if (maxdepth <= 0)
return;
push_menu_pane (pane_name, prefix);
#ifndef HAVE_BOXES
/* Remember index for first item in this pane so we can go back and
add a prefix when (if) we see the first button. After that, notbuttons
is set to 0, to mark that we have seen a button and all non button
items need a prefix. */
notbuttons = menu_items_used;
#endif
for (tail = keymap; CONSP (tail); tail = XCONS (tail)->cdr)
{
GCPRO2 (keymap, pending_maps);
/* Look at each key binding, and if it is a menu item add it
to this menu. */
item = XCONS (tail)->car;
if (CONSP (item))
single_menu_item (XCONS (item)->car, XCONS (item)->cdr,
&pending_maps, notreal, maxdepth, ¬buttons);
else if (VECTORP (item))
{
/* Loop over the char values represented in the vector. */
int len = XVECTOR (item)->size;
int c;
for (c = 0; c < len; c++)
{
Lisp_Object character;
XSETFASTINT (character, c);
single_menu_item (character, XVECTOR (item)->contents[c],
&pending_maps, notreal, maxdepth, ¬buttons);
}
}
UNGCPRO;
}
/* Process now any submenus which want to be panes at this level. */
while (!NILP (pending_maps))
{
Lisp_Object elt, eltcdr, string;
elt = Fcar (pending_maps);
eltcdr = XCONS (elt)->cdr;
string = XCONS (eltcdr)->car;
/* We no longer discard the @ from the beginning of the string here.
Instead, we do this in xmenu_show. */
single_keymap_panes (Fcar (elt), string,
XCONS (eltcdr)->cdr, notreal, maxdepth - 1);
pending_maps = Fcdr (pending_maps);
}
}
/* This is a subroutine of single_keymap_panes that handles one
keymap entry.
KEY is a key in a keymap and ITEM is its binding.
PENDING_MAPS_PTR points to a list of keymaps waiting to be made into
separate panes.
If NOTREAL is nonzero, only check for equivalent key bindings, don't
evaluate expressions in menu items and don't make any menu.
If we encounter submenus deeper than MAXDEPTH levels, ignore them.
NOTBUTTONS_PTR is only used when simulating toggle boxes and radio
buttons. It points to variable notbuttons in single_keymap_panes,
which keeps track of if we have seen a button in this menu or not. */
static void
single_menu_item (key, item, pending_maps_ptr, notreal, maxdepth,
notbuttons_ptr)
Lisp_Object key, item;
Lisp_Object *pending_maps_ptr;
int maxdepth, notreal;
int *notbuttons_ptr;
{
Lisp_Object def, map, item_string, enabled;
struct gcpro gcpro1, gcpro2;
int res;
/* Parse the menu item and leave the result in item_properties. */
GCPRO2 (key, item);
res = parse_menu_item (item, notreal, 0);
UNGCPRO;
if (!res)
return; /* Not a menu item. */
map = XVECTOR (item_properties)->contents[ITEM_PROPERTY_MAP];
if (notreal)
{
/* We don't want to make a menu, just traverse the keymaps to
precompute equivalent key bindings. */
if (!NILP (map))
single_keymap_panes (map, Qnil, key, 1, maxdepth - 1);
return;
}
enabled = XVECTOR (item_properties)->contents[ITEM_PROPERTY_ENABLE];
item_string = XVECTOR (item_properties)->contents[ITEM_PROPERTY_NAME];
if (!NILP (map) && XSTRING (item_string)->data[0] == '@')
{
if (!NILP (enabled))
/* An enabled separate pane. Remember this to handle it later. */
*pending_maps_ptr = Fcons (Fcons (map, Fcons (item_string, key)),
*pending_maps_ptr);
return;
}
#ifndef HAVE_BOXES
/* Simulate radio buttons and toggle boxes by putting a prefix in
front of them. */
{
Lisp_Object prefix = Qnil;
Lisp_Object type = XVECTOR (item_properties)->contents[ITEM_PROPERTY_TYPE];
if (!NILP (type))
{
Lisp_Object selected
= XVECTOR (item_properties)->contents[ITEM_PROPERTY_SELECTED];
if (*notbuttons_ptr)
/* The first button. Line up previous items in this menu. */
{
int index = *notbuttons_ptr; /* Index for first item this menu. */
int submenu = 0;
Lisp_Object tem;
while (index < menu_items_used)
{
tem
= XVECTOR (menu_items)->contents[index + MENU_ITEMS_ITEM_NAME];
if (NILP (tem))
{
index++;
submenu++; /* Skip sub menu. */
}
else if (EQ (tem, Qlambda))
{
index++;
submenu--; /* End sub menu. */
}
else if (EQ (tem, Qt))
index += 3; /* Skip new pane marker. */
else if (EQ (tem, Qquote))
index++; /* Skip a left, right divider. */
else
{
if (!submenu && XSTRING (tem)->data[0] != '\0'
&& XSTRING (tem)->data[0] != '-')
XVECTOR (menu_items)->contents[index + MENU_ITEMS_ITEM_NAME]
= concat2 (build_string (" "), tem);
index += MENU_ITEMS_ITEM_LENGTH;
}
}
*notbuttons_ptr = 0;
}
/* Calculate prefix, if any, for this item. */
if (EQ (type, QCtoggle))
prefix = build_string (NILP (selected) ? "[ ] " : "[X] ");
else if (EQ (type, QCradio))
prefix = build_string (NILP (selected) ? "( ) " : "(*) ");
}
/* Not a button. If we have earlier buttons, then we need a prefix. */
else if (!*notbuttons_ptr && XSTRING (item_string)->data[0] != '\0'
&& XSTRING (item_string)->data[0] != '-')
prefix = build_string (" ");
if (!NILP (prefix))
item_string = concat2 (prefix, item_string);
}
#endif /* not HAVE_BOXES */
#ifndef USE_X_TOOLKIT
if (!NILP(map))
/* Indicate visually that this is a submenu. */
item_string = concat2 (item_string, build_string (" >"));
#endif
push_menu_item (item_string, enabled, key,
XVECTOR (item_properties)->contents[ITEM_PROPERTY_DEF],
XVECTOR (item_properties)->contents[ITEM_PROPERTY_KEYEQ]);
#ifdef USE_X_TOOLKIT
/* Display a submenu using the toolkit. */
if (! (NILP (map) || NILP (enabled)))
{
push_submenu_start ();
single_keymap_panes (map, Qnil, key, 0, maxdepth - 1);
push_submenu_end ();
}
#endif
}
/* Push all the panes and items of a menu described by the
alist-of-alists MENU.
This handles old-fashioned calls to x-popup-menu. */
static void
list_of_panes (menu)
Lisp_Object menu;
{
Lisp_Object tail;
init_menu_items ();
for (tail = menu; !NILP (tail); tail = Fcdr (tail))
{
Lisp_Object elt, pane_name, pane_data;
elt = Fcar (tail);
pane_name = Fcar (elt);
CHECK_STRING (pane_name, 0);
push_menu_pane (pane_name, Qnil);
pane_data = Fcdr (elt);
CHECK_CONS (pane_data, 0);
list_of_items (pane_data);
}
finish_menu_items ();
}
/* Push the items in a single pane defined by the alist PANE. */
static void
list_of_items (pane)
Lisp_Object pane;
{
Lisp_Object tail, item, item1;
for (tail = pane; !NILP (tail); tail = Fcdr (tail))
{
item = Fcar (tail);
if (STRINGP (item))
push_menu_item (item, Qnil, Qnil, Qt, Qnil);
else if (NILP (item))
push_left_right_boundary ();
else
{
CHECK_CONS (item, 0);
item1 = Fcar (item);
CHECK_STRING (item1, 1);
push_menu_item (item1, Qt, Fcdr (item), Qt, Qnil);
}
}
}
DEFUN ("x-popup-menu", Fx_popup_menu, Sx_popup_menu, 2, 2, 0,
"Pop up a deck-of-cards menu and return user's selection.\n\
POSITION is a position specification. This is either a mouse button event\n\
or a list ((XOFFSET YOFFSET) WINDOW)\n\
where XOFFSET and YOFFSET are positions in pixels from the top left\n\
corner of WINDOW's frame. (WINDOW may be a frame object instead of a window.)\n\
This controls the position of the center of the first line\n\
in the first pane of the menu, not the top left of the menu as a whole.\n\
If POSITION is t, it means to use the current mouse position.\n\
\n\
MENU is a specifier for a menu. For the simplest case, MENU is a keymap.\n\
The menu items come from key bindings that have a menu string as well as\n\
a definition; actually, the \"definition\" in such a key binding looks like\n\
\(STRING . REAL-DEFINITION). To give the menu a title, put a string into\n\
the keymap as a top-level element.\n\n\
If REAL-DEFINITION is nil, that puts a nonselectable string in the menu.\n\
Otherwise, REAL-DEFINITION should be a valid key binding definition.\n\
\n\
You can also use a list of keymaps as MENU.\n\
Then each keymap makes a separate pane.\n\
When MENU is a keymap or a list of keymaps, the return value\n\
is a list of events.\n\n\
\n\
Alternatively, you can specify a menu of multiple panes\n\
with a list of the form (TITLE PANE1 PANE2...),\n\
where each pane is a list of form (TITLE ITEM1 ITEM2...).\n\
Each ITEM is normally a cons cell (STRING . VALUE);\n\
but a string can appear as an item--that makes a nonselectable line\n\
in the menu.\n\
With this form of menu, the return value is VALUE from the chosen item.\n\
\n\
If POSITION is nil, don't display the menu at all, just precalculate the\n\
cached information about equivalent key sequences.")
(position, menu)
Lisp_Object position, menu;
{
int number_of_panes, panes;
Lisp_Object keymap, tem;
int xpos, ypos;
Lisp_Object title;
char *error_name;
Lisp_Object selection;
int i, j;
FRAME_PTR f;
Lisp_Object x, y, window;
int keymaps = 0;
int for_click = 0;
struct gcpro gcpro1;
#ifdef HAVE_MENUS
#ifdef HAVE_PM
pm_menu_button = 0;
#endif /* HAVE_PM */
if (! NILP (position))
{
check_x ();
/* Decode the first argument: find the window and the coordinates. */
if (EQ (position, Qt)
|| (CONSP (position) && EQ (XCONS (position)->car, Qmenu_bar)))
{
/* Use the mouse's current position. */
FRAME_PTR new_f = selected_frame;
Lisp_Object bar_window;
enum scroll_bar_part part;
unsigned long time;
if (mouse_position_hook)
(*mouse_position_hook) (&new_f, 1, &bar_window,
&part, &x, &y, &time);
if (new_f != 0)
XSETFRAME (window, new_f);
else
{
window = selected_window;
XSETFASTINT (x, 0);
XSETFASTINT (y, 0);
}
}
else
{
tem = Fcar (position);
if (CONSP (tem))
{
window = Fcar (Fcdr (position));
x = Fcar (tem);
y = Fcar (Fcdr (tem));
}
else
{
for_click = 1;
tem = Fcar (Fcdr (position)); /* EVENT_START (position) */
window = Fcar (tem); /* POSN_WINDOW (tem) */
tem = Fcar (Fcdr (Fcdr (tem))); /* POSN_WINDOW_POSN (tem) */
x = Fcar (tem);
y = Fcdr (tem);
#ifdef HAVE_PM
pm_menu_button = pm_event_button (position);
#endif /* HAVE_PM */
}
}
CHECK_NUMBER (x, 0);
CHECK_NUMBER (y, 0);
/* Decode where to put the menu. */
if (FRAMEP (window))
{
f = XFRAME (window);
xpos = 0;
ypos = 0;
}
else if (WINDOWP (window))
{
CHECK_LIVE_WINDOW (window, 0);
f = XFRAME (WINDOW_FRAME (XWINDOW (window)));
xpos = (FONT_WIDTH (f->output_data.x->font)
* XFASTINT (XWINDOW (window)->left));
ypos = (f->output_data.x->line_height
* XFASTINT (XWINDOW (window)->top));
}
else
/* ??? Not really clean; should be CHECK_WINDOW_OR_FRAME,
but I don't want to make one now. */
CHECK_WINDOW (window, 0);
xpos += XINT (x);
ypos += XINT (y);
XSETFRAME (Vmenu_updating_frame, f);
}
Vmenu_updating_frame = Qnil;
#endif /* HAVE_MENUS */
title = Qnil;
GCPRO1 (title);
/* Decode the menu items from what was specified. */
keymap = Fkeymapp (menu);
tem = Qnil;
if (CONSP (menu))
tem = Fkeymapp (Fcar (menu));
if (!NILP (keymap))
{
/* We were given a keymap. Extract menu info from the keymap. */
Lisp_Object prompt;
keymap = get_keymap (menu);
/* Extract the detailed info to make one pane. */
keymap_panes (&menu, 1, NILP (position));
/* Search for a string appearing directly as an element of the keymap.
That string is the title of the menu. */
prompt = map_prompt (keymap);
if (NILP (title) && !NILP (prompt))
title = prompt;
/* Make that be the pane title of the first pane. */
if (!NILP (prompt) && menu_items_n_panes >= 0)
XVECTOR (menu_items)->contents[MENU_ITEMS_PANE_NAME] = prompt;
keymaps = 1;
}
else if (!NILP (tem))
{
/* We were given a list of keymaps. */
int nmaps = XFASTINT (Flength (menu));
Lisp_Object *maps
= (Lisp_Object *) alloca (nmaps * sizeof (Lisp_Object));
int i;
title = Qnil;
/* The first keymap that has a prompt string
supplies the menu title. */
for (tem = menu, i = 0; CONSP (tem); tem = Fcdr (tem))
{
Lisp_Object prompt;
maps[i++] = keymap = get_keymap (Fcar (tem));
prompt = map_prompt (keymap);
if (NILP (title) && !NILP (prompt))
title = prompt;
}
/* Extract the detailed info to make one pane. */
keymap_panes (maps, nmaps, NILP (position));
/* Make the title be the pane title of the first pane. */
if (!NILP (title) && menu_items_n_panes >= 0)
XVECTOR (menu_items)->contents[MENU_ITEMS_PANE_NAME] = title;
keymaps = 1;
}
else
{
/* We were given an old-fashioned menu. */
title = Fcar (menu);
CHECK_STRING (title, 1);
list_of_panes (Fcdr (menu));
keymaps = 0;
}
if (NILP (position))
{
discard_menu_items ();
UNGCPRO;
return Qnil;
}
#ifdef HAVE_MENUS
/* Display them in a menu. */
BLOCK_INPUT;
selection = xmenu_show (f, xpos, ypos, for_click,
keymaps, title, &error_name);
UNBLOCK_INPUT;
discard_menu_items ();
UNGCPRO;
#endif /* HAVE_MENUS */
if (error_name) error (error_name);
return selection;
}
#ifdef HAVE_MENUS
DEFUN ("x-popup-dialog", Fx_popup_dialog, Sx_popup_dialog, 2, 2, 0,
"Pop up a dialog box and return user's selection.\n\
POSITION specifies which frame to use.\n\
This is normally a mouse button event or a window or frame.\n\
If POSITION is t, it means to use the frame the mouse is on.\n\
The dialog box appears in the middle of the specified frame.\n\
\n\
CONTENTS specifies the alternatives to display in the dialog box.\n\
It is a list of the form (TITLE ITEM1 ITEM2...).\n\
Each ITEM is a cons cell (STRING . VALUE).\n\
The return value is VALUE from the chosen item.\n\n\
An ITEM may also be just a string--that makes a nonselectable item.\n\
An ITEM may also be nil--that means to put all preceding items\n\
on the left of the dialog box and all following items on the right.\n\
\(By default, approximately half appear on each side.)")
(position, contents)
Lisp_Object position, contents;
{
FRAME_PTR f;
Lisp_Object window;
check_x ();
/* Decode the first argument: find the window or frame to use. */
if (EQ (position, Qt)
|| (CONSP (position) && EQ (XCONS (position)->car, Qmenu_bar)))
{
#if 0 /* Using the frame the mouse is on may not be right. */
/* Use the mouse's current position. */
FRAME_PTR new_f = selected_frame;
Lisp_Object bar_window;
int part;
unsigned long time;
Lisp_Object x, y;
(*mouse_position_hook) (&new_f, 1, &bar_window, &part, &x, &y, &time);
if (new_f != 0)
XSETFRAME (window, new_f);
else
window = selected_window;
#endif
window = selected_window;
}
else if (CONSP (position))
{
Lisp_Object tem;
tem = Fcar (position);
if (CONSP (tem))
window = Fcar (Fcdr (position));
else
{
tem = Fcar (Fcdr (position)); /* EVENT_START (position) */
window = Fcar (tem); /* POSN_WINDOW (tem) */
}
}
else if (WINDOWP (position) || FRAMEP (position))
window = position;
else
window = Qnil;
/* Decode where to put the menu. */
if (FRAMEP (window))
f = XFRAME (window);
else if (WINDOWP (window))
{
CHECK_LIVE_WINDOW (window, 0);
f = XFRAME (WINDOW_FRAME (XWINDOW (window)));
}
else
/* ??? Not really clean; should be CHECK_WINDOW_OR_FRAME,
but I don't want to make one now. */
CHECK_WINDOW (window, 0);
#ifndef USE_X_TOOLKIT
/* Display a menu with these alternatives
in the middle of frame F. */
{
Lisp_Object x, y, frame, newpos;
XSETFRAME (frame, f);
XSETINT (x, x_pixel_width (f) / 2);
XSETINT (y, x_pixel_height (f) / 2);
newpos = Fcons (Fcons (x, Fcons (y, Qnil)), Fcons (frame, Qnil));
return Fx_popup_menu (newpos,
Fcons (Fcar (contents), Fcons (contents, Qnil)));
}
#else
{
Lisp_Object title;
char *error_name;
Lisp_Object selection;
/* Decode the dialog items from what was specified. */
title = Fcar (contents);
CHECK_STRING (title, 1);
list_of_panes (Fcons (contents, Qnil));
/* Display them in a dialog box. */
BLOCK_INPUT;
selection = xdialog_show (f, 0, title, &error_name);
UNBLOCK_INPUT;
discard_menu_items ();
if (error_name) error (error_name);
return selection;
}
#endif
}
#ifdef USE_X_TOOLKIT
#ifndef HAVE_PM
/* Loop in Xt until the menu pulldown or dialog popup has been
popped down (deactivated). This is used for x-popup-menu
and x-popup-dialog; it is not used for the menu bar any more.
NOTE: All calls to popup_get_selection should be protected
with BLOCK_INPUT, UNBLOCK_INPUT wrappers. */
void
popup_get_selection (initial_event, dpyinfo, id)
XEvent *initial_event;
struct x_display_info *dpyinfo;
LWLIB_ID id;
{
XEvent event;
/* Define a queue to save up for later unreading
all X events that don't pertain to the menu. */
struct event_queue
{
XEvent event;
struct event_queue *next;
};
struct event_queue *queue = NULL;
struct event_queue *queue_tmp;
if (initial_event)
event = *initial_event;
else
XtAppNextEvent (Xt_app_con, &event);
while (1)
{
/* Handle expose events for editor frames right away. */
if (event.type == Expose)
process_expose_from_menu (event);
/* Make sure we don't consider buttons grabbed after menu goes.
And make sure to deactivate for any ButtonRelease,
even if XtDispatchEvent doesn't do that. */
else if (event.type == ButtonRelease
&& dpyinfo->display == event.xbutton.display)
{
dpyinfo->grabbed &= ~(1 << event.xbutton.button);
popup_activated_flag = 0;
#ifdef USE_MOTIF /* Pretending that the event came from a
Btn1Down seems the only way to convince Motif to
activate its callbacks; setting the XmNmenuPost
isn't working. --marcus@sysc.pdx.edu. */
event.xbutton.button = 1;
#endif
}
/* If the user presses a key, deactivate the menu.
The user is likely to do that if we get wedged. */
else if (event.type == KeyPress
&& dpyinfo->display == event.xbutton.display)
{
KeySym keysym = XLookupKeysym (&event.xkey, 0);
if (!IsModifierKey (keysym))
{
popup_activated_flag = 0;
break;
}
}
/* Button presses outside the menu also pop it down. */
else if (event.type == ButtonPress
&& event.xany.display == dpyinfo->display
&& x_any_window_to_frame (dpyinfo, event.xany.window))
{
popup_activated_flag = 0;
break;
}
/* Queue all events not for this popup,
except for Expose, which we've already handled, and ButtonRelease.
Note that the X window is associated with the frame if this
is a menu bar popup, but not if it's a dialog box. So we use
x_non_menubar_window_to_frame, not x_any_window_to_frame. */
if (event.type != Expose
&& !(event.type == ButtonRelease
&& dpyinfo->display == event.xbutton.display)
&& (event.xany.display != dpyinfo->display
|| x_non_menubar_window_to_frame (dpyinfo, event.xany.window)))
{
queue_tmp = (struct event_queue *) malloc (sizeof (struct event_queue));
if (queue_tmp != NULL)
{
queue_tmp->event = event;
queue_tmp->next = queue;
queue = queue_tmp;
}
}
else
XtDispatchEvent (&event);
if (!popup_activated ())
break;
XtAppNextEvent (Xt_app_con, &event);
}
/* Unread any events that we got but did not handle. */
while (queue != NULL)
{
queue_tmp = queue;
XPutBackEvent (queue_tmp->event.xany.display, &queue_tmp->event);
queue = queue_tmp->next;
free ((char *)queue_tmp);
/* Cause these events to get read as soon as we UNBLOCK_INPUT. */
interrupt_input_pending = 1;
}
}
/* Activate the menu bar of frame F.
This is called from keyboard.c when it gets the
menu_bar_activate_event out of the Emacs event queue.
To activate the menu bar, we use the X button-press event
that was saved in saved_menu_event.
That makes the toolkit do its thing.
But first we recompute the menu bar contents (the whole tree).
The reason for saving the button event until here, instead of
passing it to the toolkit right away, is that we can safely
execute Lisp code. */
void
x_activate_menubar (f)
FRAME_PTR f;
{
if (!f->output_data.x->saved_menu_event->type)
return;
set_frame_menubar (f, 0, 1);
BLOCK_INPUT;
XtDispatchEvent ((XEvent *) f->output_data.x->saved_menu_event);
UNBLOCK_INPUT;
#ifdef USE_MOTIF
if (f->output_data.x->saved_menu_event->type == ButtonRelease)
pending_menu_activation = 1;
#endif
/* Ignore this if we get it a second time. */
f->output_data.x->saved_menu_event->type = 0;
}
#endif /* not HAVE_PM */
/* Detect if a dialog or menu has been posted. */
int
popup_activated ()
{
return popup_activated_flag;
}
#ifndef HAVE_PM
/* This callback is invoked when the user selects a menubar cascade
pushbutton, but before the pulldown menu is posted. */
static void
popup_activate_callback (widget, id, client_data)
Widget widget;
LWLIB_ID id;
XtPointer client_data;
{
popup_activated_flag = 1;
}
#endif /* not HAVE_PM */
/* This callback is called from the menu bar pulldown menu
when the user makes a selection.
Figure out what the user chose
and put the appropriate events into the keyboard buffer. */
static void
menubar_selection_callback (widget, id, client_data)
Widget widget;
LWLIB_ID id;
XtPointer client_data;
{
Lisp_Object prefix, entry;
#ifdef HAVE_PM
FRAME_PTR f = (FRAME_PTR) id;
#else /* not HAVE_PM */
FRAME_PTR f = menubar_id_to_frame (id);
#endif /* not HAVE_PM */
Lisp_Object vector;
Lisp_Object *subprefix_stack;
int submenu_depth = 0;
int i;
if (!f)
return;
subprefix_stack = (Lisp_Object *) alloca (f->menu_bar_items_used * sizeof (Lisp_Object));
vector = f->menu_bar_vector;
prefix = Qnil;
i = 0;
while (i < f->menu_bar_items_used)
{
if (EQ (XVECTOR (vector)->contents[i], Qnil))
{
subprefix_stack[submenu_depth++] = prefix;
prefix = entry;
i++;
}
else if (EQ (XVECTOR (vector)->contents[i], Qlambda))
{
prefix = subprefix_stack[--submenu_depth];
i++;
}
else if (EQ (XVECTOR (vector)->contents[i], Qt))
{
prefix = XVECTOR (vector)->contents[i + MENU_ITEMS_PANE_PREFIX];
i += MENU_ITEMS_PANE_LENGTH;
}
else
{
entry = XVECTOR (vector)->contents[i + MENU_ITEMS_ITEM_VALUE];
/* The EMACS_INT cast avoids a warning. There's no problem
as long as pointers have enough bits to hold small integers. */
if ((int) (EMACS_INT) client_data == i)
{
int j;
struct input_event buf;
Lisp_Object frame;
XSETFRAME (frame, f);
buf.kind = menu_bar_event;
buf.frame_or_window = Fcons (frame, Fcons (Qmenu_bar, Qnil));
kbd_buffer_store_event (&buf);
for (j = 0; j < submenu_depth; j++)
if (!NILP (subprefix_stack[j]))
{
buf.kind = menu_bar_event;
buf.frame_or_window = Fcons (frame, subprefix_stack[j]);
kbd_buffer_store_event (&buf);
}
if (!NILP (prefix))
{
buf.kind = menu_bar_event;
buf.frame_or_window = Fcons (frame, prefix);
kbd_buffer_store_event (&buf);
}
buf.kind = menu_bar_event;
buf.frame_or_window = Fcons (frame, entry);
kbd_buffer_store_event (&buf);
return;
}
i += MENU_ITEMS_ITEM_LENGTH;
}
}
}
#ifndef HAVE_PM
/* This callback is invoked when a dialog or menu is finished being
used and has been unposted. */
static void
popup_deactivate_callback (widget, id, client_data)
Widget widget;
LWLIB_ID id;
XtPointer client_data;
{
popup_activated_flag = 0;
}
/* Allocate a widget_value, blocking input. */
widget_value *
xmalloc_widget_value ()
{
widget_value *value;
BLOCK_INPUT;
value = malloc_widget_value ();
UNBLOCK_INPUT;
return value;
}
/* This recursively calls free_widget_value on the tree of widgets.
It must free all data that was malloc'ed for these widget_values.
In Emacs, many slots are pointers into the data of Lisp_Strings, and
must be left alone. */
void
free_menubar_widget_value_tree (wv)
widget_value *wv;
{
if (! wv) return;
wv->name = wv->value = wv->key = (char *) 0xDEADBEEF;
if (wv->contents && (wv->contents != (widget_value*)1))
{
free_menubar_widget_value_tree (wv->contents);
wv->contents = (widget_value *) 0xDEADBEEF;
}
if (wv->next)
{
free_menubar_widget_value_tree (wv->next);
wv->next = (widget_value *) 0xDEADBEEF;
}
BLOCK_INPUT;
free_widget_value (wv);
UNBLOCK_INPUT;
}
/* Return a tree of widget_value structures for a menu bar item
whose event type is ITEM_KEY (with string ITEM_NAME)
and whose contents come from the list of keymaps MAPS. */
static widget_value *
single_submenu (item_key, item_name, maps)
Lisp_Object item_key, item_name, maps;
{
widget_value *wv, *prev_wv, *save_wv, *first_wv;
int i;
int submenu_depth = 0;
Lisp_Object length;
int len;
Lisp_Object *mapvec;
widget_value **submenu_stack;
int mapno;
int previous_items = menu_items_used;
int top_level_items = 0;
length = Flength (maps);
len = XINT (length);
/* Convert the list MAPS into a vector MAPVEC. */
mapvec = (Lisp_Object *) alloca (len * sizeof (Lisp_Object));
for (i = 0; i < len; i++)
{
mapvec[i] = Fcar (maps);
maps = Fcdr (maps);
}
menu_items_n_panes = 0;
/* Loop over the given keymaps, making a pane for each map.
But don't make a pane that is empty--ignore that map instead. */
for (i = 0; i < len; i++)
{
if (SYMBOLP (mapvec[i])
|| (CONSP (mapvec[i])
&& NILP (Fkeymapp (mapvec[i]))))
{
/* Here we have a command at top level in the menu bar
as opposed to a submenu. */
top_level_items = 1;
push_menu_pane (Qnil, Qnil);
push_menu_item (item_name, Qt, item_key, mapvec[i], Qnil);
}
else
single_keymap_panes (mapvec[i], item_name, item_key, 0, 10);
}
/* Create a tree of widget_value objects
representing the panes and their items. */
submenu_stack
= (widget_value **) alloca (menu_items_used * sizeof (widget_value *));
wv = xmalloc_widget_value ();
wv->name = "menu";
wv->value = 0;
wv->enabled = 1;
first_wv = wv;
save_wv = 0;
prev_wv = 0;
/* Loop over all panes and items made during this call
and construct a tree of widget_value objects.
Ignore the panes and items made by previous calls to
single_submenu, even though those are also in menu_items. */
i = previous_items;
while (i < menu_items_used)
{
if (EQ (XVECTOR (menu_items)->contents[i], Qnil))
{
submenu_stack[submenu_depth++] = save_wv;
save_wv = prev_wv;
prev_wv = 0;
i++;
}
else if (EQ (XVECTOR (menu_items)->contents[i], Qlambda))
{
prev_wv = save_wv;
save_wv = submenu_stack[--submenu_depth];
i++;
}
else if (EQ (XVECTOR (menu_items)->contents[i], Qt)
&& submenu_depth != 0)
i += MENU_ITEMS_PANE_LENGTH;
/* Ignore a nil in the item list.
It's meaningful only for dialog boxes. */
else if (EQ (XVECTOR (menu_items)->contents[i], Qquote))
i += 1;
else if (EQ (XVECTOR (menu_items)->contents[i], Qt))
{
/* Create a new pane. */
Lisp_Object pane_name, prefix;
char *pane_string;
pane_name = XVECTOR (menu_items)->contents[i + MENU_ITEMS_PANE_NAME];
prefix = XVECTOR (menu_items)->contents[i + MENU_ITEMS_PANE_PREFIX];
pane_string = (NILP (pane_name)
? "" : (char *) XSTRING (pane_name)->data);
/* If there is just one top-level pane, put all its items directly
under the top-level menu. */
if (menu_items_n_panes == 1)
pane_string = "";
/* If the pane has a meaningful name,
make the pane a top-level menu item
with its items as a submenu beneath it. */
if (strcmp (pane_string, ""))
{
wv = xmalloc_widget_value ();
if (save_wv)
save_wv->next = wv;
else
first_wv->contents = wv;
wv->name = pane_string;
/* Ignore the @ that means "separate pane".
This is a kludge, but this isn't worth more time. */
if (!NILP (prefix) && wv->name[0] == '@')
wv->name++;
wv->value = 0;
wv->enabled = 1;
}
save_wv = wv;
prev_wv = 0;
i += MENU_ITEMS_PANE_LENGTH;
}
else
{
/* Create a new item within current pane. */
Lisp_Object item_name, enable, descrip, def;
item_name = XVECTOR (menu_items)->contents[i + MENU_ITEMS_ITEM_NAME];
enable = XVECTOR (menu_items)->contents[i + MENU_ITEMS_ITEM_ENABLE];
descrip
= XVECTOR (menu_items)->contents[i + MENU_ITEMS_ITEM_EQUIV_KEY];
def = XVECTOR (menu_items)->contents[i + MENU_ITEMS_ITEM_DEFINITION];
wv = xmalloc_widget_value ();
if (prev_wv)
prev_wv->next = wv;
else
save_wv->contents = wv;
wv->name = (char *) XSTRING (item_name)->data;
if (!NILP (descrip))
wv->key = (char *) XSTRING (descrip)->data;
wv->value = 0;
/* The EMACS_INT cast avoids a warning. There's no problem
as long as pointers have enough bits to hold small integers. */
wv->call_data = (!NILP (def) ? (void *) (EMACS_INT) i : 0);
wv->enabled = !NILP (enable);
prev_wv = wv;
i += MENU_ITEMS_ITEM_LENGTH;
}
}
/* If we have just one "menu item"
that was originally a button, return it by itself. */
if (top_level_items && first_wv->contents && first_wv->contents->next == 0)
{
wv = first_wv->contents;
free_widget_value (first_wv);
return wv;
}
return first_wv;
}
extern void EmacsFrameSetCharSize ();
/* Recompute all the widgets of frame F, when the menu bar
has been changed. */
static void
update_frame_menubar (f)
FRAME_PTR f;
{
struct x_output *x = f->output_data.x;
int columns, rows;
int menubar_changed;
Dimension shell_height;
/* We assume the menubar contents has changed if the global flag is set,
or if the current buffer has changed, or if the menubar has never
been updated before.
*/
menubar_changed = (x->menubar_widget
&& !XtIsManaged (x->menubar_widget));
if (! (menubar_changed))
return;
BLOCK_INPUT;
/* Save the size of the frame because the pane widget doesn't accept to
resize itself. So force it. */
columns = f->width;
rows = f->height;
/* Do the voodoo which means "I'm changing lots of things, don't try to
refigure sizes until I'm done." */
lw_refigure_widget (x->column_widget, False);
/* the order in which children are managed is the top to
bottom order in which they are displayed in the paned window.
First, remove the text-area widget.
*/
XtUnmanageChild (x->edit_widget);
/* remove the menubar that is there now, and put up the menubar that
should be there.
*/
if (menubar_changed)
{
XtManageChild (x->menubar_widget);
XtMapWidget (x->menubar_widget);
XtVaSetValues (x->menubar_widget, XtNmappedWhenManaged, 1, 0);
}
/* Re-manage the text-area widget, and then thrash the sizes. */
XtManageChild (x->edit_widget);
lw_refigure_widget (x->column_widget, True);
/* Force the pane widget to resize itself with the right values. */
EmacsFrameSetCharSize (x->edit_widget, columns, rows);
UNBLOCK_INPUT;
}
/* Set the contents of the menubar widgets of frame F.
The argument FIRST_TIME is currently ignored;
it is set the first time this is called, from initialize_frame_menubar. */
void
set_frame_menubar (f, first_time, deep_p)
FRAME_PTR f;
int first_time;
int deep_p;
{
Widget menubar_widget = f->output_data.x->menubar_widget;
Lisp_Object tail, items, frame;
widget_value *wv, *first_wv, *prev_wv = 0;
int i;
LWLIB_ID id;
XSETFRAME (Vmenu_updating_frame, f);
if (f->output_data.x->id == 0)
f->output_data.x->id = next_menubar_widget_id++;
id = f->output_data.x->id;
if (! menubar_widget)
deep_p = 1;
else if (pending_menu_activation && !deep_p)
deep_p = 1;
/* Make the first call for any given frame always go deep. */
else if (!f->output_data.x->saved_menu_event && !deep_p)
{
deep_p = 1;
f->output_data.x->saved_menu_event = (XEvent*)xmalloc (sizeof (XEvent));
f->output_data.x->saved_menu_event->type = 0;
}
wv = xmalloc_widget_value ();
wv->name = "menubar";
wv->value = 0;
wv->enabled = 1;
first_wv = wv;
if (deep_p)
{
/* Make a widget-value tree representing the entire menu trees. */
struct buffer *prev = current_buffer;
Lisp_Object buffer;
int specpdl_count = specpdl_ptr - specpdl;
int previous_menu_items_used = f->menu_bar_items_used;
Lisp_Object *previous_items
= (Lisp_Object *) alloca (previous_menu_items_used
* sizeof (Lisp_Object));
/* If we are making a new widget, its contents are empty,
do always reinitialize them. */
if (! menubar_widget)
previous_menu_items_used = 0;
buffer = XWINDOW (FRAME_SELECTED_WINDOW (f))->buffer;
specbind (Qinhibit_quit, Qt);
/* Don't let the debugger step into this code
because it is not reentrant. */
specbind (Qdebug_on_next_call, Qnil);
record_unwind_protect (Fset_match_data, Fmatch_data (Qnil, Qnil));
if (NILP (Voverriding_local_map_menu_flag))
{
specbind (Qoverriding_terminal_local_map, Qnil);
specbind (Qoverriding_local_map, Qnil);
}
set_buffer_internal_1 (XBUFFER (buffer));
/* Run the Lucid hook. */
call1 (Vrun_hooks, Qactivate_menubar_hook);
/* If it has changed current-menubar from previous value,
really recompute the menubar from the value. */
if (! NILP (Vlucid_menu_bar_dirty_flag))
call0 (Qrecompute_lucid_menubar);
safe_run_hooks (Qmenu_bar_update_hook);
FRAME_MENU_BAR_ITEMS (f) = menu_bar_items (FRAME_MENU_BAR_ITEMS (f));
items = FRAME_MENU_BAR_ITEMS (f);
inhibit_garbage_collection ();
/* Save the frame's previous menu bar contents data. */
bcopy (XVECTOR (f->menu_bar_vector)->contents, previous_items,
previous_menu_items_used * sizeof (Lisp_Object));
/* Fill in the current menu bar contents. */
menu_items = f->menu_bar_vector;
menu_items_allocated = XVECTOR (menu_items)->size;
init_menu_items ();
for (i = 0; i < XVECTOR (items)->size; i += 4)
{
Lisp_Object key, string, maps;
key = XVECTOR (items)->contents[i];
string = XVECTOR (items)->contents[i + 1];
maps = XVECTOR (items)->contents[i + 2];
if (NILP (string))
break;
wv = single_submenu (key, string, maps);
if (prev_wv)
prev_wv->next = wv;
else
first_wv->contents = wv;
/* Don't set wv->name here; GC during the loop might relocate it. */
wv->enabled = 1;
prev_wv = wv;
}
finish_menu_items ();
set_buffer_internal_1 (prev);
unbind_to (specpdl_count, Qnil);
/* If there has been no change in the Lisp-level contents
of the menu bar, skip redisplaying it. Just exit. */
for (i = 0; i < previous_menu_items_used; i++)
if (menu_items_used == i
|| (!EQ (previous_items[i], XVECTOR (menu_items)->contents[i])))
break;
if (i == menu_items_used && i == previous_menu_items_used && i != 0)
{
free_menubar_widget_value_tree (first_wv);
menu_items = Qnil;
return;
}
/* Now GC cannot happen during the lifetime of the widget_value,
so it's safe to store data from a Lisp_String. */
wv = first_wv->contents;
for (i = 0; i < XVECTOR (items)->size; i += 4)
{
Lisp_Object string;
string = XVECTOR (items)->contents[i + 1];
if (NILP (string))
break;
wv->name = (char *) XSTRING (string)->data;
wv = wv->next;
}
f->menu_bar_vector = menu_items;
f->menu_bar_items_used = menu_items_used;
menu_items = Qnil;
}
else
{
/* Make a widget-value tree containing
just the top level menu bar strings. */
items = FRAME_MENU_BAR_ITEMS (f);
for (i = 0; i < XVECTOR (items)->size; i += 4)
{
Lisp_Object string;
string = XVECTOR (items)->contents[i + 1];
if (NILP (string))
break;
wv = xmalloc_widget_value ();
wv->name = (char *) XSTRING (string)->data;
wv->value = 0;
wv->enabled = 1;
/* This prevents lwlib from assuming this
menu item is really supposed to be empty. */
/* The EMACS_INT cast avoids a warning.
This value just has to be different from small integers. */
wv->call_data = (void *) (EMACS_INT) (-1);
if (prev_wv)
prev_wv->next = wv;
else
first_wv->contents = wv;
prev_wv = wv;
}
/* Forget what we thought we knew about what is in the
detailed contents of the menu bar menus.
Changing the top level always destroys the contents. */
f->menu_bar_items_used = 0;
}
/* Create or update the menu bar widget. */
BLOCK_INPUT;
if (menubar_widget)
{
/* Disable resizing (done for Motif!) */
lw_allow_resizing (f->output_data.x->widget, False);
/* The third arg is DEEP_P, which says to consider the entire
menu trees we supply, rather than just the menu bar item names. */
lw_modify_all_widgets (id, first_wv, deep_p);
/* Re-enable the edit widget to resize. */
lw_allow_resizing (f->output_data.x->widget, True);
}
else
{
menubar_widget = lw_create_widget ("menubar", "menubar", id, first_wv,
f->output_data.x->column_widget,
0,
popup_activate_callback,
menubar_selection_callback,
popup_deactivate_callback);
f->output_data.x->menubar_widget = menubar_widget;
}
{
int menubar_size
= (f->output_data.x->menubar_widget
? (f->output_data.x->menubar_widget->core.height
+ f->output_data.x->menubar_widget->core.border_width)
: 0);
#if 0 /* Experimentally, we now get the right results
for -geometry -0-0 without this. 24 Aug 96, rms. */
#ifdef USE_LUCID
if (FRAME_EXTERNAL_MENU_BAR (f))
{
Dimension ibw = 0;
XtVaGetValues (f->output_data.x->column_widget,
XtNinternalBorderWidth, &ibw, NULL);
menubar_size += ibw;
}
#endif /* USE_LUCID */
#endif /* 0 */
f->output_data.x->menubar_height = menubar_size;
}
free_menubar_widget_value_tree (first_wv);
update_frame_menubar (f);
UNBLOCK_INPUT;
}
#endif /* not HAVE_PM */
/* Called from Fx_create_frame to create the initial menubar of a frame
before it is mapped, so that the window is mapped with the menubar already
there instead of us tacking it on later and thrashing the window after it
is visible. */
void
initialize_frame_menubar (f)
FRAME_PTR f;
{
/* This function is called before the first chance to redisplay
the frame. It has to be, so the frame will have the right size. */
FRAME_MENU_BAR_ITEMS (f) = menu_bar_items (FRAME_MENU_BAR_ITEMS (f));
set_frame_menubar (f, 1, 1);
}
/* Get rid of the menu bar of frame F, and free its storage.
This is used when deleting a frame, and when turning off the menu bar. */
#ifndef HAVE_PM
void
free_frame_menubar (f)
FRAME_PTR f;
{
Widget menubar_widget;
int id;
menubar_widget = f->output_data.x->menubar_widget;
f->output_data.x->menubar_height = 0;
if (menubar_widget)
{
BLOCK_INPUT;
lw_destroy_all_widgets ((LWLIB_ID) f->output_data.x->id);
UNBLOCK_INPUT;
}
}
#endif /* not HAVE_PM */
#endif /* USE_X_TOOLKIT */
/* xmenu_show actually displays a menu using the panes and items in menu_items
and returns the value selected from it.
There are two versions of xmenu_show, one for Xt and one for Xlib.
Both assume input is blocked by the caller. */
/* F is the frame the menu is for.
X and Y are the frame-relative specified position,
relative to the inside upper left corner of the frame F.
FOR_CLICK is nonzero if this menu was invoked for a mouse click.
KEYMAPS is 1 if this menu was specified with keymaps;
in that case, we return a list containing the chosen item's value
and perhaps also the pane's prefix.
TITLE is the specified menu title.
ERROR is a place to store an error message string in case of failure.
(We return nil on failure, but the value doesn't actually matter.) */
#ifndef HAVE_PM
#ifdef USE_X_TOOLKIT
/* We need a unique id for each widget handled by the Lucid Widget
library.
For the main windows, and popup menus, we use this counter,
which we increment each time after use. This starts from 1<<16.
For menu bars, we use numbers starting at 0, counted in
next_menubar_widget_id. */
LWLIB_ID widget_id_tick;
#ifdef __STDC__
static Lisp_Object *volatile menu_item_selection;
#else
static Lisp_Object *menu_item_selection;
#endif
static void
popup_selection_callback (widget, id, client_data)
Widget widget;
LWLIB_ID id;
XtPointer client_data;
{
menu_item_selection = (Lisp_Object *) client_data;
}
static Lisp_Object
xmenu_show (f, x, y, for_click, keymaps, title, error)
FRAME_PTR f;
int x;
int y;
int for_click;
int keymaps;
Lisp_Object title;
char **error;
{
int i;
LWLIB_ID menu_id;
Widget menu;
Arg av[2];
int ac = 0;
widget_value *wv, *save_wv = 0, *first_wv = 0, *prev_wv = 0;
widget_value **submenu_stack
= (widget_value **) alloca (menu_items_used * sizeof (widget_value *));
Lisp_Object *subprefix_stack
= (Lisp_Object *) alloca (menu_items_used * sizeof (Lisp_Object));
int submenu_depth = 0;
XButtonPressedEvent dummy;
int first_pane;
int next_release_must_exit = 0;
*error = NULL;
if (menu_items_used <= MENU_ITEMS_PANE_LENGTH)
{
*error = "Empty menu";
return Qnil;
}
/* Create a tree of widget_value objects
representing the panes and their items. */
wv = xmalloc_widget_value ();
wv->name = "menu";
wv->value = 0;
wv->enabled = 1;
first_wv = wv;
first_pane = 1;
/* Loop over all panes and items, filling in the tree. */
i = 0;
while (i < menu_items_used)
{
if (EQ (XVECTOR (menu_items)->contents[i], Qnil))
{
submenu_stack[submenu_depth++] = save_wv;
save_wv = prev_wv;
prev_wv = 0;
first_pane = 1;
i++;
}
else if (EQ (XVECTOR (menu_items)->contents[i], Qlambda))
{
prev_wv = save_wv;
save_wv = submenu_stack[--submenu_depth];
first_pane = 0;
i++;
}
else if (EQ (XVECTOR (menu_items)->contents[i], Qt)
&& submenu_depth != 0)
i += MENU_ITEMS_PANE_LENGTH;
/* Ignore a nil in the item list.
It's meaningful only for dialog boxes. */
else if (EQ (XVECTOR (menu_items)->contents[i], Qquote))
i += 1;
else if (EQ (XVECTOR (menu_items)->contents[i], Qt))
{
/* Create a new pane. */
Lisp_Object pane_name, prefix;
char *pane_string;
pane_name = XVECTOR (menu_items)->contents[i + MENU_ITEMS_PANE_NAME];
prefix = XVECTOR (menu_items)->contents[i + MENU_ITEMS_PANE_PREFIX];
pane_string = (NILP (pane_name)
? "" : (char *) XSTRING (pane_name)->data);
/* If there is just one top-level pane, put all its items directly
under the top-level menu. */
if (menu_items_n_panes == 1)
pane_string = "";
/* If the pane has a meaningful name,
make the pane a top-level menu item
with its items as a submenu beneath it. */
if (!keymaps && strcmp (pane_string, ""))
{
wv = xmalloc_widget_value ();
if (save_wv)
save_wv->next = wv;
else
first_wv->contents = wv;
wv->name = pane_string;
if (keymaps && !NILP (prefix))
wv->name++;
wv->value = 0;
wv->enabled = 1;
save_wv = wv;
prev_wv = 0;
}
else if (first_pane)
{
save_wv = wv;
prev_wv = 0;
}
first_pane = 0;
i += MENU_ITEMS_PANE_LENGTH;
}
else
{
/* Create a new item within current pane. */
Lisp_Object item_name, enable, descrip, def;
item_name = XVECTOR (menu_items)->contents[i + MENU_ITEMS_ITEM_NAME];
enable = XVECTOR (menu_items)->contents[i + MENU_ITEMS_ITEM_ENABLE];
descrip
= XVECTOR (menu_items)->contents[i + MENU_ITEMS_ITEM_EQUIV_KEY];
def = XVECTOR (menu_items)->contents[i + MENU_ITEMS_ITEM_DEFINITION];
wv = xmalloc_widget_value ();
if (prev_wv)
prev_wv->next = wv;
else
save_wv->contents = wv;
wv->name = (char *) XSTRING (item_name)->data;
if (!NILP (descrip))
wv->key = (char *) XSTRING (descrip)->data;
wv->value = 0;
/* If this item has a null value,
make the call_data null so that it won't display a box
when the mouse is on it. */
wv->call_data
= (!NILP (def) ? (void *) &XVECTOR (menu_items)->contents[i] : 0);
wv->enabled = !NILP (enable);
prev_wv = wv;
i += MENU_ITEMS_ITEM_LENGTH;
}
}
/* Deal with the title, if it is non-nil. */
if (!NILP (title))
{
widget_value *wv_title = xmalloc_widget_value ();
widget_value *wv_sep1 = xmalloc_widget_value ();
widget_value *wv_sep2 = xmalloc_widget_value ();
wv_sep2->name = "--";
wv_sep2->next = first_wv->contents;
wv_sep1->name = "--";
wv_sep1->next = wv_sep2;
wv_title->name = (char *) XSTRING (title)->data;
wv_title->enabled = True;
wv_title->next = wv_sep1;
first_wv->contents = wv_title;
}
/* Actually create the menu. */
menu_id = widget_id_tick++;
menu = lw_create_widget ("popup", first_wv->name, menu_id, first_wv,
f->output_data.x->widget, 1, 0,
popup_selection_callback,
popup_deactivate_callback);
/* Adjust coordinates to relative to the outer (window manager) window. */
{
Window child;
int win_x = 0, win_y = 0;
/* Find the position of the outside upper-left corner of
the inner window, with respect to the outer window. */
if (f->output_data.x->parent_desc != FRAME_X_DISPLAY_INFO (f)->root_window)
{
BLOCK_INPUT;
XTranslateCoordinates (FRAME_X_DISPLAY (f),
/* From-window, to-window. */
f->output_data.x->window_desc,
f->output_data.x->parent_desc,
/* From-position, to-position. */
0, 0, &win_x, &win_y,
/* Child of window. */
&child);
UNBLOCK_INPUT;
x += win_x;
y += win_y;
}
}
/* Adjust coordinates to be root-window-relative. */
x += f->output_data.x->left_pos;
y += f->output_data.x->top_pos;
dummy.type = ButtonPress;
dummy.serial = 0;
dummy.send_event = 0;
dummy.display = FRAME_X_DISPLAY (f);
dummy.time = CurrentTime;
dummy.root = FRAME_X_DISPLAY_INFO (f)->root_window;
dummy.window = dummy.root;
dummy.subwindow = dummy.root;
dummy.x_root = x;
dummy.y_root = y;
dummy.x = x;
dummy.y = y;
dummy.state = (FRAME_X_DISPLAY_INFO (f)->grabbed >> 1) * Button1Mask;
dummy.button = 0;
for (i = 0; i < 5; i++)
if (FRAME_X_DISPLAY_INFO (f)->grabbed & (1 << i))
dummy.button = i;
/* Don't allow any geometry request from the user. */
XtSetArg (av[ac], XtNgeometry, 0); ac++;
XtSetValues (menu, av, ac);
/* Free the widget_value objects we used to specify the contents. */
free_menubar_widget_value_tree (first_wv);
/* No selection has been chosen yet. */
menu_item_selection = 0;
/* Display the menu. */
lw_popup_menu (menu, &dummy);
popup_activated_flag = 1;
/* Process events that apply to the menu. */
popup_get_selection ((XEvent *) 0, FRAME_X_DISPLAY_INFO (f), menu_id);
/* fp turned off the following statement and wrote a comment
that it is unnecessary--that the menu has already disappeared.
Nowadays the menu disappears ok, all right, but
we need to delete the widgets or multiple ones will pile up. */
lw_destroy_all_widgets (menu_id);
/* Find the selected item, and its pane, to return
the proper value. */
if (menu_item_selection != 0)
{
Lisp_Object prefix, entry;
prefix = Qnil;
i = 0;
while (i < menu_items_used)
{
if (EQ (XVECTOR (menu_items)->contents[i], Qnil))
{
subprefix_stack[submenu_depth++] = prefix;
prefix = entry;
i++;
}
else if (EQ (XVECTOR (menu_items)->contents[i], Qlambda))
{
prefix = subprefix_stack[--submenu_depth];
i++;
}
else if (EQ (XVECTOR (menu_items)->contents[i], Qt))
{
prefix
= XVECTOR (menu_items)->contents[i + MENU_ITEMS_PANE_PREFIX];
i += MENU_ITEMS_PANE_LENGTH;
}
/* Ignore a nil in the item list.
It's meaningful only for dialog boxes. */
else if (EQ (XVECTOR (menu_items)->contents[i], Qquote))
i += 1;
else
{
entry
= XVECTOR (menu_items)->contents[i + MENU_ITEMS_ITEM_VALUE];
if (menu_item_selection == &XVECTOR (menu_items)->contents[i])
{
if (keymaps != 0)
{
int j;
entry = Fcons (entry, Qnil);
if (!NILP (prefix))
entry = Fcons (prefix, entry);
for (j = submenu_depth - 1; j >= 0; j--)
if (!NILP (subprefix_stack[j]))
entry = Fcons (subprefix_stack[j], entry);
}
return entry;
}
i += MENU_ITEMS_ITEM_LENGTH;
}
}
}
return Qnil;
}
static void
dialog_selection_callback (widget, id, client_data)
Widget widget;
LWLIB_ID id;
XtPointer client_data;
{
/* The EMACS_INT cast avoids a warning. There's no problem
as long as pointers have enough bits to hold small integers. */
if ((int) (EMACS_INT) client_data != -1)
menu_item_selection = (Lisp_Object *) client_data;
BLOCK_INPUT;
lw_destroy_all_widgets (id);
UNBLOCK_INPUT;
popup_activated_flag = 0;
}
static char * button_names [] = {
"button1", "button2", "button3", "button4", "button5",
"button6", "button7", "button8", "button9", "button10" };
static Lisp_Object
xdialog_show (f, keymaps, title, error)
FRAME_PTR f;
int keymaps;
Lisp_Object title;
char **error;
{
int i, nb_buttons=0;
LWLIB_ID dialog_id;
Widget menu;
char dialog_name[6];
widget_value *wv, *save_wv = 0, *first_wv = 0, *prev_wv = 0;
/* Number of elements seen so far, before boundary. */
int left_count = 0;
/* 1 means we've seen the boundary between left-hand elts and right-hand. */
int boundary_seen = 0;
*error = NULL;
if (menu_items_n_panes > 1)
{
*error = "Multiple panes in dialog box";
return Qnil;
}
/* Create a tree of widget_value objects
representing the text label and buttons. */
{
Lisp_Object pane_name, prefix;
char *pane_string;
pane_name = XVECTOR (menu_items)->contents[MENU_ITEMS_PANE_NAME];
prefix = XVECTOR (menu_items)->contents[MENU_ITEMS_PANE_PREFIX];
pane_string = (NILP (pane_name)
? "" : (char *) XSTRING (pane_name)->data);
prev_wv = xmalloc_widget_value ();
prev_wv->value = pane_string;
if (keymaps && !NILP (prefix))
prev_wv->name++;
prev_wv->enabled = 1;
prev_wv->name = "message";
first_wv = prev_wv;
/* Loop over all panes and items, filling in the tree. */
i = MENU_ITEMS_PANE_LENGTH;
while (i < menu_items_used)
{
/* Create a new item within current pane. */
Lisp_Object item_name, enable, descrip;
item_name = XVECTOR (menu_items)->contents[i + MENU_ITEMS_ITEM_NAME];
enable = XVECTOR (menu_items)->contents[i + MENU_ITEMS_ITEM_ENABLE];
descrip
= XVECTOR (menu_items)->contents[i + MENU_ITEMS_ITEM_EQUIV_KEY];
if (NILP (item_name))
{
free_menubar_widget_value_tree (first_wv);
*error = "Submenu in dialog items";
return Qnil;
}
if (EQ (item_name, Qquote))
{
/* This is the boundary between left-side elts
and right-side elts. Stop incrementing right_count. */
boundary_seen = 1;
i++;
continue;
}
if (nb_buttons >= 9)
{
free_menubar_widget_value_tree (first_wv);
*error = "Too many dialog items";
return Qnil;
}
wv = xmalloc_widget_value ();
prev_wv->next = wv;
wv->name = (char *) button_names[nb_buttons];
if (!NILP (descrip))
wv->key = (char *) XSTRING (descrip)->data;
wv->value = (char *) XSTRING (item_name)->data;
wv->call_data = (void *) &XVECTOR (menu_items)->contents[i];
wv->enabled = !NILP (enable);
prev_wv = wv;
if (! boundary_seen)
left_count++;
nb_buttons++;
i += MENU_ITEMS_ITEM_LENGTH;
}
/* If the boundary was not specified,
by default put half on the left and half on the right. */
if (! boundary_seen)
left_count = nb_buttons - nb_buttons / 2;
wv = xmalloc_widget_value ();
wv->name = dialog_name;
/* Dialog boxes use a really stupid name encoding
which specifies how many buttons to use
and how many buttons are on the right.
The Q means something also. */
dialog_name[0] = 'Q';
dialog_name[1] = '0' + nb_buttons;
dialog_name[2] = 'B';
dialog_name[3] = 'R';
/* Number of buttons to put on the right. */
dialog_name[4] = '0' + nb_buttons - left_count;
dialog_name[5] = 0;
wv->contents = first_wv;
first_wv = wv;
}
/* Actually create the dialog. */
dialog_id = widget_id_tick++;
menu = lw_create_widget (first_wv->name, "dialog", dialog_id, first_wv,
f->output_data.x->widget, 1, 0,
dialog_selection_callback, 0);
lw_modify_all_widgets (dialog_id, first_wv->contents, True);
/* Free the widget_value objects we used to specify the contents. */
free_menubar_widget_value_tree (first_wv);
/* No selection has been chosen yet. */
menu_item_selection = 0;
/* Display the menu. */
lw_pop_up_all_widgets (dialog_id);
popup_activated_flag = 1;
/* Process events that apply to the menu. */
popup_get_selection ((XEvent *) 0, FRAME_X_DISPLAY_INFO (f), dialog_id);
lw_destroy_all_widgets (dialog_id);
/* Find the selected item, and its pane, to return
the proper value. */
if (menu_item_selection != 0)
{
Lisp_Object prefix;
prefix = Qnil;
i = 0;
while (i < menu_items_used)
{
Lisp_Object entry;
if (EQ (XVECTOR (menu_items)->contents[i], Qt))
{
prefix
= XVECTOR (menu_items)->contents[i + MENU_ITEMS_PANE_PREFIX];
i += MENU_ITEMS_PANE_LENGTH;
}
else
{
entry
= XVECTOR (menu_items)->contents[i + MENU_ITEMS_ITEM_VALUE];
if (menu_item_selection == &XVECTOR (menu_items)->contents[i])
{
if (keymaps != 0)
{
entry = Fcons (entry, Qnil);
if (!NILP (prefix))
entry = Fcons (prefix, entry);
}
return entry;
}
i += MENU_ITEMS_ITEM_LENGTH;
}
}
}
return Qnil;
}
#else /* not USE_X_TOOLKIT */
static Lisp_Object
xmenu_show (f, x, y, for_click, keymaps, title, error)
FRAME_PTR f;
int x, y;
int for_click;
int keymaps;
Lisp_Object title;
char **error;
{
Window root;
XMenu *menu;
int pane, selidx, lpane, status;
Lisp_Object entry, pane_prefix;
char *datap;
int ulx, uly, width, height;
int dispwidth, dispheight;
int i, j;
int maxwidth;
int dummy_int;
unsigned int dummy_uint;
*error = 0;
if (menu_items_n_panes == 0)
return Qnil;
if (menu_items_used <= MENU_ITEMS_PANE_LENGTH)
{
*error = "Empty menu";
return Qnil;
}
/* Figure out which root window F is on. */
XGetGeometry (FRAME_X_DISPLAY (f), FRAME_X_WINDOW (f), &root,
&dummy_int, &dummy_int, &dummy_uint, &dummy_uint,
&dummy_uint, &dummy_uint);
/* Make the menu on that window. */
menu = XMenuCreate (FRAME_X_DISPLAY (f), root, "emacs");
if (menu == NULL)
{
*error = "Can't create menu";
return Qnil;
}
#ifdef HAVE_X_WINDOWS
/* Adjust coordinates to relative to the outer (window manager) window. */
{
Window child;
int win_x = 0, win_y = 0;
/* Find the position of the outside upper-left corner of
the inner window, with respect to the outer window. */
if (f->output_data.x->parent_desc != FRAME_X_DISPLAY_INFO (f)->root_window)
{
BLOCK_INPUT;
XTranslateCoordinates (FRAME_X_DISPLAY (f),
/* From-window, to-window. */
f->output_data.x->window_desc,
f->output_data.x->parent_desc,
/* From-position, to-position. */
0, 0, &win_x, &win_y,
/* Child of window. */
&child);
UNBLOCK_INPUT;
x += win_x;
y += win_y;
}
}
#endif /* HAVE_X_WINDOWS */
/* Adjust coordinates to be root-window-relative. */
x += f->output_data.x->left_pos;
y += f->output_data.x->top_pos;
/* Create all the necessary panes and their items. */
i = 0;
while (i < menu_items_used)
{
if (EQ (XVECTOR (menu_items)->contents[i], Qt))
{
/* Create a new pane. */
Lisp_Object pane_name, prefix;
char *pane_string;
pane_name = XVECTOR (menu_items)->contents[i + MENU_ITEMS_PANE_NAME];
prefix = XVECTOR (menu_items)->contents[i + MENU_ITEMS_PANE_PREFIX];
pane_string = (NILP (pane_name)
? "" : (char *) XSTRING (pane_name)->data);
if (keymaps && !NILP (prefix))
pane_string++;
lpane = XMenuAddPane (FRAME_X_DISPLAY (f), menu, pane_string, TRUE);
if (lpane == XM_FAILURE)
{
XMenuDestroy (FRAME_X_DISPLAY (f), menu);
*error = "Can't create pane";
return Qnil;
}
i += MENU_ITEMS_PANE_LENGTH;
/* Find the width of the widest item in this pane. */
maxwidth = 0;
j = i;
while (j < menu_items_used)
{
Lisp_Object item;
item = XVECTOR (menu_items)->contents[j];
if (EQ (item, Qt))
break;
if (NILP (item))
{
j++;
continue;
}
width = STRING_BYTES (XSTRING (item));
if (width > maxwidth)
maxwidth = width;
j += MENU_ITEMS_ITEM_LENGTH;
}
}
/* Ignore a nil in the item list.
It's meaningful only for dialog boxes. */
else if (EQ (XVECTOR (menu_items)->contents[i], Qquote))
i += 1;
else
{
/* Create a new item within current pane. */
Lisp_Object item_name, enable, descrip;
unsigned char *item_data;
item_name = XVECTOR (menu_items)->contents[i + MENU_ITEMS_ITEM_NAME];
enable = XVECTOR (menu_items)->contents[i + MENU_ITEMS_ITEM_ENABLE];
descrip
= XVECTOR (menu_items)->contents[i + MENU_ITEMS_ITEM_EQUIV_KEY];
if (!NILP (descrip))
{
int gap = maxwidth - STRING_BYTES (XSTRING (item_name));
#ifdef C_ALLOCA
Lisp_Object spacer;
spacer = Fmake_string (make_number (gap), make_number (' '));
item_name = concat2 (item_name, spacer);
item_name = concat2 (item_name, descrip);
item_data = XSTRING (item_name)->data;
#else
/* if alloca is fast, use that to make the space,
to reduce gc needs. */
item_data
= (unsigned char *) alloca (maxwidth
+ STRING_BYTES (XSTRING (descrip)) + 1);
bcopy (XSTRING (item_name)->data, item_data,
STRING_BYTES (XSTRING (item_name)));
for (j = XSTRING (item_name)->size; j < maxwidth; j++)
item_data[j] = ' ';
bcopy (XSTRING (descrip)->data, item_data + j,
STRING_BYTES (XSTRING (descrip)));
item_data[j + STRING_BYTES (XSTRING (descrip))] = 0;
#endif
}
else
item_data = XSTRING (item_name)->data;
if (XMenuAddSelection (FRAME_X_DISPLAY (f),
menu, lpane, 0, item_data,
!NILP (enable))
== XM_FAILURE)
{
XMenuDestroy (FRAME_X_DISPLAY (f), menu);
*error = "Can't add selection to menu";
return Qnil;
}
i += MENU_ITEMS_ITEM_LENGTH;
}
}
/* All set and ready to fly. */
XMenuRecompute (FRAME_X_DISPLAY (f), menu);
dispwidth = DisplayWidth (FRAME_X_DISPLAY (f),
XScreenNumberOfScreen (FRAME_X_SCREEN (f)));
dispheight = DisplayHeight (FRAME_X_DISPLAY (f),
XScreenNumberOfScreen (FRAME_X_SCREEN (f)));
x = min (x, dispwidth);
y = min (y, dispheight);
x = max (x, 1);
y = max (y, 1);
XMenuLocate (FRAME_X_DISPLAY (f), menu, 0, 0, x, y,
&ulx, &uly, &width, &height);
if (ulx+width > dispwidth)
{
x -= (ulx + width) - dispwidth;
ulx = dispwidth - width;
}
if (uly+height > dispheight)
{
y -= (uly + height) - dispheight;
uly = dispheight - height;
}
if (ulx < 0) x -= ulx;
if (uly < 0) y -= uly;
XMenuSetAEQ (menu, TRUE);
XMenuSetFreeze (menu, TRUE);
pane = selidx = 0;
status = XMenuActivate (FRAME_X_DISPLAY (f), menu, &pane, &selidx,
x, y, ButtonReleaseMask, &datap);
#ifdef HAVE_X_WINDOWS
/* Assume the mouse has moved out of the X window.
If it has actually moved in, we will get an EnterNotify. */
x_mouse_leave (FRAME_X_DISPLAY_INFO (f));
#endif
switch (status)
{
case XM_SUCCESS:
#ifdef XDEBUG
fprintf (stderr, "pane= %d line = %d\n", panes, selidx);
#endif
/* Find the item number SELIDX in pane number PANE. */
i = 0;
while (i < menu_items_used)
{
if (EQ (XVECTOR (menu_items)->contents[i], Qt))
{
if (pane == 0)
pane_prefix
= XVECTOR (menu_items)->contents[i + MENU_ITEMS_PANE_PREFIX];
pane--;
i += MENU_ITEMS_PANE_LENGTH;
}
else
{
if (pane == -1)
{
if (selidx == 0)
{
entry
= XVECTOR (menu_items)->contents[i + MENU_ITEMS_ITEM_VALUE];
if (keymaps != 0)
{
entry = Fcons (entry, Qnil);
if (!NILP (pane_prefix))
entry = Fcons (pane_prefix, entry);
}
break;
}
selidx--;
}
i += MENU_ITEMS_ITEM_LENGTH;
}
}
break;
case XM_FAILURE:
*error = "Can't activate menu";
case XM_IA_SELECT:
case XM_NO_SELECT:
entry = Qnil;
break;
}
XMenuDestroy (FRAME_X_DISPLAY (f), menu);
#ifdef HAVE_X_WINDOWS
/* State that no mouse buttons are now held.
(The oldXMenu code doesn't track this info for us.)
That is not necessarily true, but the fiction leads to reasonable
results, and it is a pain to ask which are actually held now. */
FRAME_X_DISPLAY_INFO (f)->grabbed = 0;
#endif
return entry;
}
#endif /* not USE_X_TOOLKIT */
#else /* HAVE_PM */
static int pmmenu_count;
static int pmmenu_alloc;
static pm_menu *pmmenu_menu;
static int pmmenu_str_size;
static int pmmenu_str_alloc;
static char *pmmenu_str;
static void pmmenu_add (const pm_menu *pmm)
{
if (pmmenu_count >= pmmenu_alloc)
{
pmmenu_alloc += 512;
pmmenu_menu = (pm_menu *)xrealloc (pmmenu_menu,
pmmenu_alloc * sizeof (pm_menu));
}
pmmenu_menu[pmmenu_count++] = *pmm;
}
/* Copy S to D, replacing ~ characters with ~~. */
static void tilde_expand (char *d, const char *s)
{
while (*s != 0)
{
if (*s == '~')
*d++ = *s;
*d++ = *s++;
}
*d = 0;
}
/* Compute the length of string S. If TILDE is true, count ~
characters twice. Store the length to *LEN. Return true if TILDE
is true and there are any ~ characters. */
static int tilde_len (int *len, const char *s, int tilde)
{
int nc = 0, nt = 0;
if (tilde)
while (*s != 0)
{
if (*s == '~')
++nt;
++nc; ++s;
}
else
nc = strlen (s);
*len = nc + nt;
return nt != 0;
}
/* Add the concatenation of S1 and S2 to the string pool for sending
it to pmemacs.exe. Replace ~ with ~~ if TILDE is true. Return the
offset of the string. */
static int pmmenu_add_str (const char *s1, const char *s2, int tilde)
{
int len1, len2;
int result = pmmenu_str_size;
if (tilde_len (&len1, s1, tilde))
{
char *tem = alloca (len1 + 1);
tilde_expand (tem, s1);
s1 = tem;
}
if (tilde_len (&len2, s2, tilde))
{
char *tem = alloca (len2 + 1);
tilde_expand (tem, s2);
s2 = tem;
}
++len2; /* Include the terminating null character */
while (pmmenu_str_size + len1 + len2 > pmmenu_str_alloc)
{
pmmenu_str_alloc += 4096;
pmmenu_str = (char *)xrealloc (pmmenu_str, pmmenu_str_alloc);
}
bcopy (s1, pmmenu_str + pmmenu_str_size, len1);
bcopy (s2, pmmenu_str + pmmenu_str_size + len1, len2);
pmmenu_str_size += len1 + len2;
return result;
}
/* Return true if NAME looks like a menu separator string. */
static int menu_sep_p (Lisp_Object name)
{
const char *p;
if (!STRINGP (name))
return 0;
for (p = XSTRING (name)->data; *p != 0; ++p)
if (*p != ' ' && *p != '-')
return 0;
return 1;
}
static void
make_pmmenu (int i, int menubarp, int keymaps)
{
pm_menu pmm;
int submenu_depth = 0;
int sel = 0;
while (i < menu_items_used)
{
if (EQ (XVECTOR (menu_items)->contents[i], Qnil))
{
pmm.type = PMMENU_PUSH;
pmmenu_add (&pmm);
submenu_depth++;
i++;
}
else if (EQ (XVECTOR (menu_items)->contents[i], Qlambda))
{
pmm.type = PMMENU_POP;
pmmenu_add (&pmm);
--submenu_depth;
i++;
}
else if (EQ (XVECTOR (menu_items)->contents[i], Qt)
&& submenu_depth != 0)
i += MENU_ITEMS_PANE_LENGTH;
/* Ignore a nil in the item list.
It's meaningful only for dialog boxes. */
else if (EQ (XVECTOR (menu_items)->contents[i], Qquote))
i += 1;
else if (EQ (XVECTOR (menu_items)->contents[i], Qt))
{
/* Create a new pane. */
Lisp_Object pane_name, prefix;
char *pane_string;
pane_name = XVECTOR (menu_items)->contents[i + MENU_ITEMS_PANE_NAME];
prefix = XVECTOR (menu_items)->contents[i + MENU_ITEMS_PANE_PREFIX];
pane_string = (NILP (pane_name)
? "" : (char *) XSTRING (pane_name)->data);
/* If there is just one top-level pane, put all its items directly
under the top-level menu. */
if (menu_items_n_panes == 1)
pane_string = "";
/* If the pane has a meaningful name,
make the pane a top-level menu item
with its items as a submenu beneath it. */
if (!keymaps && strcmp (pane_string, ""))
{
if (keymaps && !NILP (prefix))
pane_string++;
pmm.type = PMMENU_SUB;
pmm.item = 0;
pmm.str_offset = pmmenu_add_str (pane_string, "", 1);
pmm.enable = 1;
pmmenu_add (&pmm);
}
i += MENU_ITEMS_PANE_LENGTH;
}
else
{
/* Create a new item within current pane. */
Lisp_Object item_name, enable, descrip, value, def;
item_name = XVECTOR (menu_items)->contents[i + MENU_ITEMS_ITEM_NAME];
value = XVECTOR (menu_items)->contents[i + MENU_ITEMS_ITEM_VALUE];
enable = XVECTOR (menu_items)->contents[i + MENU_ITEMS_ITEM_ENABLE];
descrip
= XVECTOR (menu_items)->contents[i + MENU_ITEMS_ITEM_EQUIV_KEY];
def = XVECTOR (menu_items)->contents[i + MENU_ITEMS_ITEM_DEFINITION];
/* Check for separator lines. */
if (menu_sep_p (item_name) && NILP (def))
{
/* The code processing the value returned by pmemacs
does not check for separators, therefore we must
update `sel' even for separators. */
++sel;
pmm.type = PMMENU_SEP;
}
else
{
pmm.type = PMMENU_ITEM;
pmm.item = (menubarp ? i : ++sel);
pmm.str_offset
= pmmenu_add_str (XSTRING (item_name)->data,
(NILP (descrip) ? ""
: (char*)XSTRING (descrip)->data),
1);
pmm.enable = !NILP (enable);
}
pmmenu_add (&pmm);
i += MENU_ITEMS_ITEM_LENGTH;
}
}
pmm.type = PMMENU_END;
pmmenu_add (&pmm);
}
static Lisp_Object
xmenu_show (f, x, y, for_click, keymaps, title, error)
FRAME_PTR f;
int x, y;
int for_click;
int keymaps;
Lisp_Object title;
char **error;
{
int i, sel, serial;
Lisp_Object *subprefix_stack
= (Lisp_Object *) alloca (menu_items_used * sizeof (Lisp_Object));
int submenu_depth = 0;
pm_request pmr;
pm_menu pmm;
*error = 0;
if (menu_items_n_panes == 0)
return Qnil;
if (menu_items_used <= MENU_ITEMS_PANE_LENGTH)
{
*error = "Empty menu";
return Qnil;
}
pmmenu_count = 0; pmmenu_str_size = 0;
make_pmmenu (0, 0, keymaps);
BLOCK_INPUT;
pmr.popupmenu.header.type = PMR_POPUPMENU;
pmr.popupmenu.header.frame = (unsigned long)f;
pmr.popupmenu.serial = serial = pm_serial++;
pmr.popupmenu.x = x;
pmr.popupmenu.y = y;
pmr.popupmenu.align_top = pm_popup_menu_align_top;
pmr.popupmenu.button = pm_menu_button;
pmr.popupmenu.count = pmmenu_count;
pmr.popupmenu.size = pmmenu_count * sizeof (pm_menu) + pmmenu_str_size;
pm_send (&pmr, sizeof (pmr));
pm_send (pmmenu_menu, pmmenu_count * sizeof (pm_menu));
pm_send (pmmenu_str, pmmenu_str_size);
if (pm_receive (serial, &sel, NULL, 1) == NULL)
sel = 0;
UNBLOCK_INPUT;
/* Find the selected item, and its pane, to return the proper value. */
if (sel != 0)
{
Lisp_Object prefix, entry;
prefix = Qnil;
i = 0;
while (i < menu_items_used)
{
if (EQ (XVECTOR (menu_items)->contents[i], Qnil))
{
subprefix_stack[submenu_depth++] = prefix;
prefix = entry;
i++;
}
else if (EQ (XVECTOR (menu_items)->contents[i], Qlambda))
{
prefix = subprefix_stack[--submenu_depth];
i++;
}
else if (EQ (XVECTOR (menu_items)->contents[i], Qt))
{
prefix
= XVECTOR (menu_items)->contents[i + MENU_ITEMS_PANE_PREFIX];
i += MENU_ITEMS_PANE_LENGTH;
}
/* Ignore a quote in the item list.
It's meaningful only for dialog boxes. */
else if (EQ (XVECTOR (menu_items)->contents[i], Qquote))
i += 1;
else
{
entry
= XVECTOR (menu_items)->contents[i + MENU_ITEMS_ITEM_VALUE];
if (--sel == 0)
{
if (keymaps != 0)
{
int j;
entry = Fcons (entry, Qnil);
if (!NILP (prefix))
entry = Fcons (prefix, entry);
for (j = submenu_depth - 1; j >= 0; j--)
if (!NILP (subprefix_stack[j]))
entry = Fcons (subprefix_stack[j], entry);
}
return entry;
}
i += MENU_ITEMS_ITEM_LENGTH;
}
}
}
return Qnil;
}
static Lisp_Object
xdialog_show (f, keymaps, title, error)
FRAME_PTR f;
int keymaps;
Lisp_Object title;
char **error;
{
int nb_buttons = 0;
int i, sel;
pm_request pmr;
pm_menu pmm;
*error = NULL;
if (menu_items_n_panes > 1)
{
*error = "Multiple panes in dialog box";
return Qnil;
}
pmmenu_count = 0; pmmenu_str_size = 0;
if (XSTRING (title)->size != 0)
{
pmm.type = PMMENU_TITLE;
pmm.item = 0;
pmm.str_offset = pmmenu_add_str (XSTRING (title)->data, "", 0);
pmm.enable = 0;
pmmenu_add (&pmm);
}
/* Loop over all panes and items, filling in the tree. */
i = MENU_ITEMS_PANE_LENGTH;
while (i < menu_items_used)
{
/* Create a new item within current pane. */
Lisp_Object item_name, enable;
item_name = XVECTOR (menu_items)->contents[i + MENU_ITEMS_ITEM_NAME];
enable = XVECTOR (menu_items)->contents[i + MENU_ITEMS_ITEM_ENABLE];
if (NILP (item_name))
{
*error = "Submenu in dialog items";
return Qnil;
}
if (EQ (item_name, Qquote))
{
/* This is the boundary between left-side elts
and right-side elts. */
i++;
continue;
}
if (nb_buttons >= 10)
{
*error = "Too many dialog items";
return Qnil;
}
pmm.type = PMMENU_ITEM;
pmm.item = i + 1;
pmm.str_offset = pmmenu_add_str (XSTRING (item_name)->data, "", 0);
pmm.enable = !NILP (enable);
pmmenu_add (&pmm);
nb_buttons++;
i += MENU_ITEMS_ITEM_LENGTH;
}
pmm.type = PMMENU_END;
pmmenu_add (&pmm);
BLOCK_INPUT;
pmr.dialog.header.type = PMR_DIALOG;
pmr.dialog.header.frame = (unsigned long)f;
pmr.dialog.serial = pm_serial++;
pmr.dialog.buttons = nb_buttons;
pmr.dialog.count = pmmenu_count;
pmr.dialog.size = pmmenu_count * sizeof (pm_menu) + pmmenu_str_size;
pm_send (&pmr, sizeof (pmr));
pm_send (pmmenu_menu, pmmenu_count * sizeof (pm_menu));
pm_send (pmmenu_str, pmmenu_str_size);
if (pm_receive (pmr.dialog.serial, &sel, NULL, 1) == NULL)
sel = 0;
UNBLOCK_INPUT;
if (sel == 0)
return Qnil;
return XVECTOR (menu_items)->contents[sel - 1 + MENU_ITEMS_ITEM_VALUE];
}
static void
single_submenu (item_key, item_name, maps)
Lisp_Object item_key, item_name, maps;
{
int i;
int submenu_depth = 0;
Lisp_Object length;
int len;
Lisp_Object *mapvec;
int previous_items = menu_items_used;
pm_menu pmm;
char *name;
length = Flength (maps);
len = XINT (length);
/* Convert the list MAPS into a vector MAPVEC. */
mapvec = (Lisp_Object *) alloca (len * sizeof (Lisp_Object));
for (i = 0; i < len; i++)
{
mapvec[i] = Fcar (maps);
maps = Fcdr (maps);
}
menu_items_n_panes = 0;
/* Loop over the given keymaps, making a pane for each map.
But don't make a pane that is empty--ignore that map instead. */
for (i = 0; i < len; i++)
single_keymap_panes (mapvec[i], item_name, item_key, 0);
name = STRINGP (item_name) ? (char *) XSTRING (item_name)->data : "???";
pmm.type = PMMENU_TOP;
pmm.item = 0;
pmm.str_offset = pmmenu_add_str (name, "", 1);
pmm.enable = 1;
pmmenu_add (&pmm);
make_pmmenu (previous_items, 1, 0);
}
static void
update_frame_menubar (f)
FRAME_PTR f;
{
}
void
set_frame_menubar (f, first_time, deep_p)
FRAME_PTR f;
int first_time;
int deep_p;
{
pm_request pmr;
pm_menu pmm;
Lisp_Object tail, items;
int i;
struct buffer *prev = current_buffer;
Lisp_Object buffer;
int specpdl_count = specpdl_ptr - specpdl;
int previous_menu_items_used = f->menu_bar_items_used;
Lisp_Object *previous_items
= (Lisp_Object *) alloca (previous_menu_items_used
* sizeof (Lisp_Object));
buffer = XWINDOW (FRAME_SELECTED_WINDOW (f))->buffer;
specbind (Qinhibit_quit, Qt);
/* Don't let the debugger step into this code because it is not
reentrant. */
specbind (Qdebug_on_next_call, Qnil);
record_unwind_protect (Fset_match_data, Fmatch_data (Qnil, Qnil));
if (NILP (Voverriding_local_map_menu_flag))
{
specbind (Qoverriding_terminal_local_map, Qnil);
specbind (Qoverriding_local_map, Qnil);
}
set_buffer_internal_1 (XBUFFER (buffer));
/* Run the Lucid hook. */
call1 (Vrun_hooks, Qactivate_menubar_hook);
/* If it has changed current-menubar from previous value, really
recompute the menubar from the value. */
if (! NILP (Vlucid_menu_bar_dirty_flag))
call0 (Qrecompute_lucid_menubar);
safe_run_hooks (Qmenu_bar_update_hook);
FRAME_MENU_BAR_ITEMS (f) = menu_bar_items (FRAME_MENU_BAR_ITEMS (f));
items = FRAME_MENU_BAR_ITEMS (f);
inhibit_garbage_collection ();
/* Save the frame's previous menu bar contents data. */
bcopy (XVECTOR (f->menu_bar_vector)->contents, previous_items,
previous_menu_items_used * sizeof (Lisp_Object));
/* Fill in the current menu bar contents. */
menu_items = f->menu_bar_vector;
menu_items_allocated = XVECTOR (menu_items)->size;
init_menu_items ();
pmmenu_count = 0; pmmenu_str_size = 0;
for (i = 0; i < XVECTOR (items)->size; i += 4)
{
Lisp_Object key, string, maps;
key = XVECTOR (items)->contents[i];
string = XVECTOR (items)->contents[i + 1];
maps = XVECTOR (items)->contents[i + 2];
if (NILP (string))
break;
single_submenu (key, string, maps);
}
finish_menu_items ();
set_buffer_internal_1 (prev);
unbind_to (specpdl_count, Qnil);
/* If there has been no change in the Lisp-level contents of the
menu bar, skip redisplaying it. Just exit. */
for (i = 0; i < previous_menu_items_used; i++)
if (menu_items_used == i
|| (previous_items[i] != XVECTOR (menu_items)->contents[i]))
break;
if (i == menu_items_used && i == previous_menu_items_used)
{
menu_items = Qnil;
return;
}
f->menu_bar_vector = menu_items;
f->menu_bar_items_used = menu_items_used;
menu_items = Qnil;
BLOCK_INPUT;
pmm.type = PMMENU_END;
pmmenu_add (&pmm);
pmr.menubar.header.type = PMR_MENUBAR;
pmr.menubar.header.frame = (unsigned long)f;
pmr.menubar.entries = pmmenu_count;
pmr.menubar.size = pmmenu_count * sizeof (pm_menu) + pmmenu_str_size;
pm_send (&pmr, sizeof (pmr));
pm_send (pmmenu_menu, pmmenu_count * sizeof (pm_menu));
pm_send (pmmenu_str, pmmenu_str_size);
update_frame_menubar (f);
UNBLOCK_INPUT;
}
void pm_menubar_selection (FRAME_PTR f, int sel)
{
menubar_selection_callback (0, (LWLIB_ID)f, sel);
}
x_activate_menubar (f)
FRAME_PTR f;
{
}
#endif /* HAVE_PM */
#endif /* HAVE_MENUS */
void
syms_of_xmenu ()
{
staticpro (&menu_items);
menu_items = Qnil;
#ifdef HAVE_PM
DEFVAR_BOOL ("pm-align-menu-key-descriptions",
&pm_align_menu_key_descriptions,
"*Non-nil means align key descriptions in menus.\n\
nil means put key descriptions directly after the title of a\n\
menu item, in parentheses. You should set this variable\n\
in your startup file because it is ignored after computing\n\
the keyboard equivalents for menus.");
pm_align_menu_key_descriptions = 1;
DEFVAR_BOOL ("pm-popup-menu-align-top", &pm_popup_menu_align_top,
"*Non-nil means put the top item of a popup menu at the mouse position.\n\
nil means put the bottom item of a popup menu at the mouse position.");
pm_popup_menu_align_top = 1;
#endif /* HAVE_PM */
Qmenu_alias = intern ("menu-alias");
staticpro (&Qmenu_alias);
Qdebug_on_next_call = intern ("debug-on-next-call");
staticpro (&Qdebug_on_next_call);
DEFVAR_LISP ("menu-updating-frame", &Vmenu_updating_frame,
"Frame for which we are updating a menu.\n\
The enable predicate for a menu command should check this variable.");
Vmenu_updating_frame = Qnil;
#ifdef USE_X_TOOLKIT
#ifndef HAVE_PM
widget_id_tick = (1<<16);
#endif /* not HAVE_PM */
next_menubar_widget_id = 1;
#endif
defsubr (&Sx_popup_menu);
#ifdef HAVE_MENUS
defsubr (&Sx_popup_dialog);
#endif
}