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[Emacs-diffs] Changes to emacs/src/xmenu.c [gnus-5_10-branch]
From: |
Miles Bader |
Subject: |
[Emacs-diffs] Changes to emacs/src/xmenu.c [gnus-5_10-branch] |
Date: |
Sat, 04 Sep 2004 08:18:18 -0400 |
Index: emacs/src/xmenu.c
diff -c /dev/null emacs/src/xmenu.c:1.255.2.1
*** /dev/null Sat Sep 4 12:03:46 2004
--- emacs/src/xmenu.c Sat Sep 4 12:01:20 2004
***************
*** 0 ****
--- 1,3432 ----
+ /* X Communication module for terminals which understand the X protocol.
+ Copyright (C) 1986, 88, 93, 94, 96, 99, 2000, 2001, 2003
+ 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 GNU Emacs.
+ *
+ * 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. */
+
+ #include <config.h>
+
+ /* On 4.3 this loses if it comes after xterm.h. */
+ #include <signal.h>
+
+ #include <stdio.h>
+
+ #include "lisp.h"
+ #include "termhooks.h"
+ #include "keyboard.h"
+ #include "keymap.h"
+ #include "frame.h"
+ #include "window.h"
+ #include "blockinput.h"
+ #include "buffer.h"
+ #include "charset.h"
+ #include "coding.h"
+
+ #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
+
+ /* 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"
+
+ #ifdef HAVE_X_WINDOWS
+ /* Defining HAVE_MULTILINGUAL_MENU would mean that the toolkit menu
+ code accepts the Emacs internal encoding. */
+ #undef HAVE_MULTILINGUAL_MENU
+ #ifdef USE_X_TOOLKIT
+ #include "widget.h"
+ #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 */
+ #ifndef USE_GTK
+ #include "../oldXMenu/XMenu.h"
+ #endif
+ #endif /* not USE_X_TOOLKIT */
+ #endif /* HAVE_X_WINDOWS */
+
+ #ifndef TRUE
+ #define TRUE 1
+ #define FALSE 0
+ #endif /* no TRUE */
+
+ Lisp_Object Vmenu_updating_frame;
+
+ Lisp_Object Qdebug_on_next_call;
+
+ extern Lisp_Object Qmenu_bar;
+
+ extern Lisp_Object QCtoggle, QCradio;
+
+ 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 ();
+ extern XtAppContext Xt_app_con;
+
+ static Lisp_Object xdialog_show ();
+ static void popup_get_selection ();
+
+ /* Define HAVE_BOXES if menus can handle radio and toggle buttons. */
+
+ #define HAVE_BOXES 1
+ #endif /* USE_X_TOOLKIT */
+
+ #ifdef USE_GTK
+ #include "gtkutil.h"
+ #define HAVE_BOXES 1
+ extern void set_frame_menubar ();
+ static Lisp_Object xdialog_show ();
+ #endif
+
+ /* This is how to deal with multibyte text if HAVE_MULTILINGUAL_MENU
+ isn't defined. The use of HAVE_MULTILINGUAL_MENU could probably be
+ confined to an extended version of this with sections of code below
+ using it unconditionally. */
+ #ifdef USE_GTK
+ /* gtk just uses utf-8. */
+ # define ENCODE_MENU_STRING(str) ENCODE_UTF_8 (str)
+ #else
+ /* I'm not convinced ENCODE_SYSTEM is defined correctly, or maybe
+ something else should be used here. Except under MS-Windows it
+ just converts to unibyte, but encoding with `locale-coding-system'
+ seems better -- X may actually display the result correctly, and
+ it's not necessarily equivalent to the unibyte text. -- fx */
+ # define ENCODE_MENU_STRING(str) ENCODE_SYSTEM (str)
+ #endif
+
+ static void push_menu_item P_ ((Lisp_Object, Lisp_Object, Lisp_Object,
+ Lisp_Object, Lisp_Object, Lisp_Object,
+ Lisp_Object, Lisp_Object));
+ static int update_frame_menubar P_ ((struct frame *));
+ static Lisp_Object xmenu_show P_ ((struct frame *, int, int, int, int,
+ Lisp_Object, char **));
+ static void keymap_panes P_ ((Lisp_Object *, int, int));
+ static void single_keymap_panes P_ ((Lisp_Object, Lisp_Object, Lisp_Object,
+ int, int));
+ static void list_of_panes P_ ((Lisp_Object));
+ static void list_of_items P_ ((Lisp_Object));
+
+ extern EMACS_TIME timer_check P_ ((int));
+
+ /* 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
+
+ enum menu_item_idx
+ {
+ MENU_ITEMS_ITEM_NAME = 0,
+ MENU_ITEMS_ITEM_ENABLE,
+ MENU_ITEMS_ITEM_VALUE,
+ MENU_ITEMS_ITEM_EQUIV_KEY,
+ MENU_ITEMS_ITEM_DEFINITION,
+ MENU_ITEMS_ITEM_TYPE,
+ MENU_ITEMS_ITEM_SELECTED,
+ MENU_ITEMS_ITEM_HELP,
+ MENU_ITEMS_ITEM_LENGTH
+ };
+
+ static Lisp_Object menu_items;
+
+ /* If non-nil, means that the global vars defined here are already in use.
+ Used to detect cases where we try to re-enter this non-reentrant code. */
+ static Lisp_Object menu_items_inuse;
+
+ /* 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 <address@hidden>. */
+
+ int pending_menu_activation;
+
+ #ifdef USE_X_TOOLKIT
+
+ /* 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 = XCDR (tail))
+ {
+ frame = XCAR (tail);
+ if (!GC_FRAMEP (frame))
+ continue;
+ f = XFRAME (frame);
+ if (!FRAME_WINDOW_P (f))
+ continue;
+ if (f->output_data.x->id == id)
+ return f;
+ }
+ return 0;
+ }
+
+ #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);
+ }
+
+ if (!NILP (menu_items_inuse))
+ error ("Trying to use a menu from within a menu-entry");
+ menu_items_inuse = Qt;
+ 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. */
+
+ static void
+ finish_menu_items ()
+ {
+ }
+
+ static Lisp_Object
+ unuse_menu_items (dummy)
+ int dummy;
+ {
+ return menu_items_inuse = Qnil;
+ }
+
+ /* 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;
+ }
+ xassert (NILP (menu_items_inuse));
+ }
+
+ /* 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). TYPE is the type of this menu
+ item, one of nil, `toggle' or `radio'. */
+
+ static void
+ push_menu_item (name, enable, key, def, equiv, type, selected, help)
+ Lisp_Object name, enable, key, def, equiv, type, selected, help;
+ {
+ 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;
+ XVECTOR (menu_items)->contents[menu_items_used++] = type;
+ XVECTOR (menu_items)->contents[menu_items_used++] = selected;
+ XVECTOR (menu_items)->contents[menu_items_used++] = help;
+ }
+
+ /* 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],
+ Fkeymap_prompt (keymaps[mapno]), Qnil, notreal, 10);
+
+ finish_menu_items ();
+ }
+
+ /* Args passed between single_keymap_panes and single_menu_item. */
+ struct skp
+ {
+ Lisp_Object pending_maps;
+ int maxdepth, notreal;
+ int notbuttons;
+ };
+
+ static void single_menu_item P_ ((Lisp_Object, Lisp_Object, Lisp_Object,
+ void *));
+
+ /* 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;
+ {
+ struct skp skp;
+ struct gcpro gcpro1;
+
+ skp.pending_maps = Qnil;
+ skp.maxdepth = maxdepth;
+ skp.notreal = notreal;
+ skp.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. */
+ skp.notbuttons = menu_items_used;
+ #endif
+
+ GCPRO1 (skp.pending_maps);
+ map_keymap (keymap, single_menu_item, Qnil, &skp, 1);
+ UNGCPRO;
+
+ /* Process now any submenus which want to be panes at this level. */
+ while (CONSP (skp.pending_maps))
+ {
+ Lisp_Object elt, eltcdr, string;
+ elt = XCAR (skp.pending_maps);
+ eltcdr = XCDR (elt);
+ string = XCAR (eltcdr);
+ /* 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,
+ XCDR (eltcdr), notreal, maxdepth - 1);
+ skp.pending_maps = XCDR (skp.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.
+ SKP->PENDING_MAPS_PTR is a list of keymaps waiting to be made into
+ separate panes.
+ If SKP->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 SKP->MAXDEPTH levels, ignore them.
+ SKP->NOTBUTTONS is only used when simulating toggle boxes and radio
+ buttons. It keeps track of if we have seen a button in this menu or
+ not. */
+
+ static void
+ single_menu_item (key, item, dummy, skp_v)
+ Lisp_Object key, item, dummy;
+ void *skp_v;
+ {
+ Lisp_Object map, item_string, enabled;
+ struct gcpro gcpro1, gcpro2;
+ int res;
+ struct skp *skp = skp_v;
+
+ /* Parse the menu item and leave the result in item_properties. */
+ GCPRO2 (key, item);
+ res = parse_menu_item (item, skp->notreal, 0);
+ UNGCPRO;
+ if (!res)
+ return; /* Not a menu item. */
+
+ map = XVECTOR (item_properties)->contents[ITEM_PROPERTY_MAP];
+
+ if (skp->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, skp->maxdepth - 1);
+ return;
+ }
+
+ enabled = XVECTOR (item_properties)->contents[ITEM_PROPERTY_ENABLE];
+ item_string = XVECTOR (item_properties)->contents[ITEM_PROPERTY_NAME];
+
+ if (!NILP (map) && SREF (item_string, 0) == '@')
+ {
+ if (!NILP (enabled))
+ /* An enabled separate pane. Remember this to handle it later. */
+ skp->pending_maps = Fcons (Fcons (map, Fcons (item_string, key)),
+ skp->pending_maps);
+ 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 (skp->notbuttons)
+ /* The first button. Line up previous items in this menu. */
+ {
+ int index = skp->notbuttons; /* 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 && SREF (tem, 0) != '\0'
+ && SREF (tem, 0) != '-')
+ XVECTOR (menu_items)->contents[index +
MENU_ITEMS_ITEM_NAME]
+ = concat2 (build_string (" "), tem);
+ index += MENU_ITEMS_ITEM_LENGTH;
+ }
+ }
+ skp->notbuttons = 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 (!skp->notbuttons && SREF (item_string, 0) != '\0'
+ && SREF (item_string, 0) != '-')
+ prefix = build_string (" ");
+
+ if (!NILP (prefix))
+ item_string = concat2 (prefix, item_string);
+ }
+ #endif /* not HAVE_BOXES */
+
+ #if ! defined (USE_X_TOOLKIT) && ! defined (USE_GTK)
+ 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],
+ XVECTOR (item_properties)->contents[ITEM_PROPERTY_TYPE],
+ XVECTOR (item_properties)->contents[ITEM_PROPERTY_SELECTED],
+ XVECTOR (item_properties)->contents[ITEM_PROPERTY_HELP]);
+
+ #if defined (USE_X_TOOLKIT) || defined (USE_GTK)
+ /* Display a submenu using the toolkit. */
+ if (! (NILP (map) || NILP (enabled)))
+ {
+ push_submenu_start ();
+ single_keymap_panes (map, Qnil, key, 0, skp->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);
+ push_menu_pane (ENCODE_MENU_STRING (pane_name), Qnil);
+ pane_data = Fcdr (elt);
+ CHECK_CONS (pane_data);
+ 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 (ENCODE_MENU_STRING (item), Qnil, Qnil, Qt,
+ Qnil, Qnil, Qnil, Qnil);
+ else if (NILP (item))
+ push_left_right_boundary ();
+ else
+ {
+ CHECK_CONS (item);
+ item1 = Fcar (item);
+ CHECK_STRING (item1);
+ push_menu_item (ENCODE_MENU_STRING (item1), Qt, Fcdr (item),
+ Qt, Qnil, Qnil, Qnil, Qnil);
+ }
+ }
+ }
+
+ #ifdef HAVE_X_WINDOWS
+ /* Return the mouse position in *X and *Y. The coordinates are window
+ relative for the edit window in frame F.
+ This is for Fx_popup_menu. The mouse_position_hook can not
+ be used for X, as it returns window relative coordinates
+ for the window where the mouse is in. This could be the menu bar,
+ the scroll bar or the edit window. Fx_popup_menu needs to be
+ sure it is the edit window. */
+ static void
+ mouse_position_for_popup (f, x, y)
+ FRAME_PTR f;
+ int *x;
+ int *y;
+ {
+ Window root, dummy_window;
+ int dummy;
+
+ BLOCK_INPUT;
+
+ XQueryPointer (FRAME_X_DISPLAY (f),
+ DefaultRootWindow (FRAME_X_DISPLAY (f)),
+
+ /* The root window which contains the pointer. */
+ &root,
+
+ /* Window pointer is on, not used */
+ &dummy_window,
+
+ /* The position on that root window. */
+ x, y,
+
+ /* x/y in dummy_window coordinates, not used. */
+ &dummy, &dummy,
+
+ /* Modifier keys and pointer buttons, about which
+ we don't care. */
+ (unsigned int *) &dummy);
+
+ UNBLOCK_INPUT;
+
+ /* xmenu_show expects window coordinates, not root window
+ coordinates. Translate. */
+ *x -= f->left_pos + FRAME_OUTER_TO_INNER_DIFF_X (f);
+ *y -= f->top_pos + FRAME_OUTER_TO_INNER_DIFF_Y (f);
+ }
+
+ #endif /* HAVE_X_WINDOWS */
+
+ DEFUN ("x-popup-menu", Fx_popup_menu, Sx_popup_menu, 2, 2, 0,
+ doc: /* Pop up a deck-of-cards menu and return user's selection.
+ POSITION is a position specification. This is either a mouse button event
+ or a list ((XOFFSET YOFFSET) WINDOW)
+ where XOFFSET and YOFFSET are positions in pixels from the top left
+ corner of WINDOW's frame. (WINDOW may be a frame object instead of a window.)
+ This controls the position of the center of the first line
+ in the first pane of the menu, not the top left of the menu as a whole.
+ If POSITION is t, it means to use the current mouse position.
+
+ MENU is a specifier for a menu. For the simplest case, MENU is a keymap.
+ The menu items come from key bindings that have a menu string as well as
+ a definition; actually, the "definition" in such a key binding looks like
+ \(STRING . REAL-DEFINITION). To give the menu a title, put a string into
+ the keymap as a top-level element.
+
+ If REAL-DEFINITION is nil, that puts a nonselectable string in the menu.
+ Otherwise, REAL-DEFINITION should be a valid key binding definition.
+
+ You can also use a list of keymaps as MENU.
+ Then each keymap makes a separate pane.
+ When MENU is a keymap or a list of keymaps, the return value
+ is a list of events.
+
+ Alternatively, you can specify a menu of multiple panes
+ with a list of the form (TITLE PANE1 PANE2...),
+ where each pane is a list of form (TITLE ITEM1 ITEM2...).
+ Each ITEM is normally a cons cell (STRING . VALUE);
+ but a string can appear as an item--that makes a nonselectable line
+ in the menu.
+ With this form of menu, the return value is VALUE from the chosen item.
+
+ If POSITION is nil, don't display the menu at all, just precalculate the
+ cached information about equivalent key sequences. */)
+ (position, menu)
+ Lisp_Object position, menu;
+ {
+ Lisp_Object keymap, tem;
+ int xpos = 0, ypos = 0;
+ Lisp_Object title;
+ char *error_name;
+ Lisp_Object selection;
+ FRAME_PTR f = NULL;
+ Lisp_Object x, y, window;
+ int keymaps = 0;
+ int for_click = 0;
+ int specpdl_count = SPECPDL_INDEX ();
+ struct gcpro gcpro1;
+
+ #ifdef HAVE_MENUS
+ if (! NILP (position))
+ {
+ int get_current_pos_p = 0;
+ check_x ();
+
+ /* Decode the first argument: find the window and the coordinates. */
+ if (EQ (position, Qt)
+ || (CONSP (position) && (EQ (XCAR (position), Qmenu_bar)
+ || EQ (XCAR (position), Qtool_bar))))
+ {
+ get_current_pos_p = 1;
+ }
+ 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);
+ }
+
+ /* If a click happens in an external tool bar or a detached
+ tool bar, x and y is NIL. In that case, use the current
+ mouse position. This happens for the help button in the
+ tool bar. Ideally popup-menu should pass NIL to
+ this function, but it doesn't. */
+ if (NILP (x) && NILP (y))
+ get_current_pos_p = 1;
+ }
+
+ if (get_current_pos_p)
+ {
+ /* Use the mouse's current position. */
+ FRAME_PTR new_f = SELECTED_FRAME ();
+ #ifdef HAVE_X_WINDOWS
+ /* Can't use mouse_position_hook for X since it returns
+ coordinates relative to the window the mouse is in,
+ we need coordinates relative to the edit widget always. */
+ if (new_f != 0)
+ {
+ int cur_x, cur_y;
+
+ mouse_position_for_popup (new_f, &cur_x, &cur_y);
+ /* cur_x/y may be negative, so use make_number. */
+ x = make_number (cur_x);
+ y = make_number (cur_y);
+ }
+
+ #else /* not HAVE_X_WINDOWS */
+ 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);
+ #endif /* not HAVE_X_WINDOWS */
+
+ if (new_f != 0)
+ XSETFRAME (window, new_f);
+ else
+ {
+ window = selected_window;
+ XSETFASTINT (x, 0);
+ XSETFASTINT (y, 0);
+ }
+ }
+
+ CHECK_NUMBER (x);
+ CHECK_NUMBER (y);
+
+ /* Decode where to put the menu. */
+
+ if (FRAMEP (window))
+ {
+ f = XFRAME (window);
+ xpos = 0;
+ ypos = 0;
+ }
+ else if (WINDOWP (window))
+ {
+ CHECK_LIVE_WINDOW (window);
+ f = XFRAME (WINDOW_FRAME (XWINDOW (window)));
+
+ xpos = WINDOW_LEFT_EDGE_X (XWINDOW (window));
+ ypos = WINDOW_TOP_EDGE_Y (XWINDOW (window));
+ }
+ else
+ /* ??? Not really clean; should be CHECK_WINDOW_OR_FRAME,
+ but I don't want to make one now. */
+ CHECK_WINDOW (window);
+
+ xpos += XINT (x);
+ ypos += XINT (y);
+ }
+ Vmenu_updating_frame = Qnil;
+ #endif /* HAVE_MENUS */
+
+ record_unwind_protect (unuse_menu_items, Qnil);
+ title = Qnil;
+ GCPRO1 (title);
+
+ /* Decode the menu items from what was specified. */
+
+ keymap = get_keymap (menu, 0, 0);
+ if (CONSP (keymap))
+ {
+ /* We were given a keymap. Extract menu info from the keymap. */
+ Lisp_Object prompt;
+
+ /* 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 = Fkeymap_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 (CONSP (menu) && KEYMAPP (XCAR (menu)))
+ {
+ /* 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), 1, 0);
+
+ prompt = Fkeymap_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);
+
+ list_of_panes (Fcdr (menu));
+
+ keymaps = 0;
+ }
+
+ unbind_to (specpdl_count, Qnil);
+
+ 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,
+ doc: /* Pop up a dialog box and return user's selection.
+ POSITION specifies which frame to use.
+ This is normally a mouse button event or a window or frame.
+ If POSITION is t, it means to use the frame the mouse is on.
+ The dialog box appears in the middle of the specified frame.
+
+ CONTENTS specifies the alternatives to display in the dialog box.
+ It is a list of the form (TITLE ITEM1 ITEM2...).
+ Each ITEM is a cons cell (STRING . VALUE).
+ The return value is VALUE from the chosen item.
+
+ An ITEM may also be just a string--that makes a nonselectable item.
+ An ITEM may also be nil--that means to put all preceding items
+ on the left of the dialog box and all following items on the right.
+ \(By default, approximately half appear on each side.) */)
+ (position, contents)
+ Lisp_Object position, contents;
+ {
+ FRAME_PTR f = NULL;
+ Lisp_Object window;
+
+ check_x ();
+
+ /* Decode the first argument: find the window or frame to use. */
+ if (EQ (position, Qt)
+ || (CONSP (position) && (EQ (XCAR (position), Qmenu_bar)
+ || EQ (XCAR (position), Qtool_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;
+ enum scroll_bar_part 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);
+ 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);
+
+ #if ! defined (USE_X_TOOLKIT) && ! defined (USE_GTK)
+ /* 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;
+ int specpdl_count = SPECPDL_INDEX ();
+
+ /* Decode the dialog items from what was specified. */
+ title = Fcar (contents);
+ CHECK_STRING (title);
+ record_unwind_protect (unuse_menu_items, Qnil);
+
+ if (NILP (Fcar (Fcdr (contents))))
+ /* No buttons specified, add an "Ok" button so users can pop down
+ the dialog. Also, the lesstif/motif version crashes if there are
+ no buttons. */
+ contents = Fcons (title, Fcons (Fcons (build_string ("Ok"), Qt), Qnil));
+
+ list_of_panes (Fcons (contents, Qnil));
+
+ /* Display them in a dialog box. */
+ BLOCK_INPUT;
+ selection = xdialog_show (f, 0, title, &error_name);
+ UNBLOCK_INPUT;
+
+ unbind_to (specpdl_count, Qnil);
+ discard_menu_items ();
+
+ if (error_name) error (error_name);
+ return selection;
+ }
+ #endif
+ }
+
+ #if defined (USE_X_TOOLKIT) || defined (USE_GTK)
+
+ /* 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.
+
+ If DO_TIMERS is nonzero, run timers.
+ If DOWN_ON_KEYPRESS is nonzero, pop down if a key is pressed.
+
+ NOTE: All calls to popup_get_selection should be protected
+ with BLOCK_INPUT, UNBLOCK_INPUT wrappers. */
+
+ #ifdef USE_X_TOOLKIT
+ static void
+ popup_get_selection (initial_event, dpyinfo, id, do_timers, down_on_keypress)
+ XEvent *initial_event;
+ struct x_display_info *dpyinfo;
+ LWLIB_ID id;
+ int do_timers;
+ int down_on_keypress;
+ {
+ XEvent event;
+
+ while (popup_activated_flag)
+ {
+ /* If we have no events to run, consider timers. */
+ if (do_timers && !XtAppPending (Xt_app_con))
+ timer_check (1);
+
+ if (initial_event)
+ {
+ event = *initial_event;
+ initial_event = 0;
+ }
+ else
+ XtAppNextEvent (Xt_app_con, &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. */
+ if (event.type == ButtonRelease
+ && dpyinfo->display == event.xbutton.display)
+ {
+ dpyinfo->grabbed &= ~(1 << event.xbutton.button);
+ #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. address@hidden */
+ event.xbutton.button = 1;
+ /* Motif only pops down menus when no Ctrl, Alt or Mod
+ key is pressed and the button is released. So reset key state
+ so Motif thinks this is the case. */
+ event.xbutton.state = 0;
+ #endif
+ }
+ /* If the user presses a key that doesn't go to the menu,
+ deactivate the menu.
+ The user is likely to do that if we get wedged.
+ All toolkits now pop down menus on ESC.
+ For dialogs however, the focus may not be on the dialog, so
+ in that case, we pop down. */
+ else if (event.type == KeyPress
+ && down_on_keypress
+ && dpyinfo->display == event.xbutton.display)
+ {
+ KeySym keysym = XLookupKeysym (&event.xkey, 0);
+ if (!IsModifierKey (keysym)
+ && x_any_window_to_frame (dpyinfo, event.xany.window) != NULL)
+ popup_activated_flag = 0;
+ }
+
+ x_dispatch_event (&event, event.xany.display);
+ }
+ }
+
+ #endif /* USE_X_TOOLKIT */
+
+ #ifdef USE_GTK
+ /* Loop util popup_activated_flag is set to zero in a callback.
+ Used for popup menus and dialogs. */
+ static void
+ popup_widget_loop ()
+ {
+ ++popup_activated_flag;
+
+ /* Process events in the Gtk event loop until done. */
+ while (popup_activated_flag)
+ {
+ gtk_main_iteration ();
+ }
+ }
+ #endif
+
+ /* 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;
+
+ #ifdef USE_GTK
+ if (! xg_win_to_widget (FRAME_X_DISPLAY (f),
+ f->output_data.x->saved_menu_event->xany.window))
+ return;
+ #endif
+
+ set_frame_menubar (f, 0, 1);
+ BLOCK_INPUT;
+ #ifdef USE_GTK
+ XPutBackEvent (f->output_data.x->display_info->display,
+ f->output_data.x->saved_menu_event);
+ popup_activated_flag = 1;
+ #else
+ XtDispatchEvent (f->output_data.x->saved_menu_event);
+ #endif
+ 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;
+ }
+
+ /* Detect if a dialog or menu has been posted. */
+
+ int
+ popup_activated ()
+ {
+ return popup_activated_flag;
+ }
+
+ /* This callback is invoked when the user selects a menubar cascade
+ pushbutton, but before the pulldown menu is posted. */
+
+ #ifndef USE_GTK
+ static void
+ popup_activate_callback (widget, id, client_data)
+ Widget widget;
+ LWLIB_ID id;
+ XtPointer client_data;
+ {
+ popup_activated_flag = 1;
+ }
+ #endif
+
+ /* This callback is invoked when a dialog or menu is finished being
+ used and has been unposted. */
+
+ #ifdef USE_GTK
+ static void
+ popup_deactivate_callback (widget, client_data)
+ GtkWidget *widget;
+ gpointer client_data;
+ {
+ popup_activated_flag = 0;
+ }
+ #else
+ static void
+ popup_deactivate_callback (widget, id, client_data)
+ Widget widget;
+ LWLIB_ID id;
+ XtPointer client_data;
+ {
+ popup_activated_flag = 0;
+ }
+ #endif
+
+
+ /* Function that finds the frame for WIDGET and shows the HELP text
+ for that widget.
+ F is the frame if known, or NULL if not known. */
+ static void
+ show_help_event (f, widget, help)
+ FRAME_PTR f;
+ xt_or_gtk_widget widget;
+ Lisp_Object help;
+ {
+ Lisp_Object frame;
+
+ if (f)
+ {
+ XSETFRAME (frame, f);
+ kbd_buffer_store_help_event (frame, help);
+ }
+ else
+ {
+ #if 0 /* This code doesn't do anything useful. ++kfs */
+ /* WIDGET is the popup menu. It's parent is the frame's
+ widget. See which frame that is. */
+ xt_or_gtk_widget frame_widget = XtParent (widget);
+ Lisp_Object tail;
+
+ for (tail = Vframe_list; GC_CONSP (tail); tail = XCDR (tail))
+ {
+ frame = XCAR (tail);
+ if (GC_FRAMEP (frame)
+ && (f = XFRAME (frame),
+ FRAME_X_P (f) && f->output_data.x->widget == frame_widget))
+ break;
+ }
+ #endif
+ show_help_echo (help, Qnil, Qnil, Qnil, 1);
+ }
+ }
+
+ /* Callback called when menu items are highlighted/unhighlighted
+ while moving the mouse over them. WIDGET is the menu bar or menu
+ popup widget. ID is its LWLIB_ID. CALL_DATA contains a pointer to
+ the data structure for the menu item, or null in case of
+ unhighlighting. */
+
+ #ifdef USE_GTK
+ void
+ menu_highlight_callback (widget, call_data)
+ GtkWidget *widget;
+ gpointer call_data;
+ {
+ xg_menu_item_cb_data *cb_data;
+ Lisp_Object help;
+
+ cb_data = (xg_menu_item_cb_data*) g_object_get_data (G_OBJECT (widget),
+ XG_ITEM_DATA);
+ if (! cb_data) return;
+
+ help = call_data ? cb_data->help : Qnil;
+
+ /* If popup_activated_flag is greater than 1 we are in a popup menu.
+ Don't show help for them, they won't appear before the
+ popup is popped down. */
+ if (popup_activated_flag <= 1)
+ show_help_event (cb_data->cl_data->f, widget, help);
+ }
+ #else
+ void
+ menu_highlight_callback (widget, id, call_data)
+ Widget widget;
+ LWLIB_ID id;
+ void *call_data;
+ {
+ struct frame *f;
+ Lisp_Object help;
+
+ widget_value *wv = (widget_value *) call_data;
+
+ help = wv ? wv->help : Qnil;
+
+ /* Determine the frame for the help event. */
+ f = menubar_id_to_frame (id);
+
+ show_help_event (f, widget, help);
+ }
+ #endif
+
+ /* Find the menu selection and store it in the keyboard buffer.
+ F is the frame the menu is on.
+ MENU_BAR_ITEMS_USED is the length of VECTOR.
+ VECTOR is an array of menu events for the whole menu.
+ */
+ void
+ find_and_call_menu_selection (f, menu_bar_items_used, vector, client_data)
+ FRAME_PTR f;
+ int menu_bar_items_used;
+ Lisp_Object vector;
+ void *client_data;
+ {
+ Lisp_Object prefix, entry;
+ Lisp_Object *subprefix_stack;
+ int submenu_depth = 0;
+ int i;
+
+ entry = Qnil;
+ subprefix_stack = (Lisp_Object *) alloca (menu_bar_items_used * sizeof
(Lisp_Object));
+ prefix = Qnil;
+ i = 0;
+
+ while (i < 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;
+ EVENT_INIT (buf);
+
+ XSETFRAME (frame, f);
+ buf.kind = MENU_BAR_EVENT;
+ buf.frame_or_window = frame;
+ buf.arg = frame;
+ 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 = frame;
+ buf.arg = subprefix_stack[j];
+ kbd_buffer_store_event (&buf);
+ }
+
+ if (!NILP (prefix))
+ {
+ buf.kind = MENU_BAR_EVENT;
+ buf.frame_or_window = frame;
+ buf.arg = prefix;
+ kbd_buffer_store_event (&buf);
+ }
+
+ buf.kind = MENU_BAR_EVENT;
+ buf.frame_or_window = frame;
+ buf.arg = entry;
+ kbd_buffer_store_event (&buf);
+
+ return;
+ }
+ i += MENU_ITEMS_ITEM_LENGTH;
+ }
+ }
+ }
+
+
+ #ifdef USE_GTK
+ /* Gtk calls callbacks just because we tell it what item should be
+ selected in a radio group. If this variable is set to a non-zero
+ value, we are creating menus and don't want callbacks right now.
+ */
+ static int xg_crazy_callback_abort;
+
+ /* 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, client_data)
+ GtkWidget *widget;
+ gpointer client_data;
+ {
+ xg_menu_item_cb_data *cb_data = (xg_menu_item_cb_data*) client_data;
+
+ if (xg_crazy_callback_abort)
+ return;
+
+ if (! cb_data || ! cb_data->cl_data || ! cb_data->cl_data->f)
+ return;
+
+ find_and_call_menu_selection (cb_data->cl_data->f,
+ cb_data->cl_data->menu_bar_items_used,
+ cb_data->cl_data->menu_bar_vector,
+ cb_data->call_data);
+ }
+
+ #else /* not USE_GTK */
+
+ /* 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;
+ {
+ FRAME_PTR f;
+
+ f = menubar_id_to_frame (id);
+ if (!f)
+ return;
+ find_and_call_menu_selection (f, f->menu_bar_items_used,
+ f->menu_bar_vector, client_data);
+ }
+ #endif /* not USE_GTK */
+
+ /* 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;
+ }
+
+ /* Set up data in menu_items 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 int
+ parse_single_submenu (item_key, item_name, maps)
+ Lisp_Object item_key, item_name, maps;
+ {
+ Lisp_Object length;
+ int len;
+ Lisp_Object *mapvec;
+ int i;
+ 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);
+ }
+
+ /* 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 (!KEYMAPP (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, Qnil, Qnil, Qnil);
+ }
+ else
+ {
+ Lisp_Object prompt;
+ prompt = Fkeymap_prompt (mapvec[i]);
+ single_keymap_panes (mapvec[i],
+ !NILP (prompt) ? prompt : item_name,
+ item_key, 0, 10);
+ }
+ }
+
+ return top_level_items;
+ }
+
+ /* Create a tree of widget_value objects
+ representing the panes and items
+ in menu_items starting at index START, up to index END. */
+
+ static widget_value *
+ digest_single_submenu (start, end, top_level_items)
+ int start, end, top_level_items;
+ {
+ widget_value *wv, *prev_wv, *save_wv, *first_wv;
+ int i;
+ int submenu_depth = 0;
+ widget_value **submenu_stack;
+
+ submenu_stack
+ = (widget_value **) alloca (menu_items_used * sizeof (widget_value *));
+ wv = xmalloc_widget_value ();
+ wv->name = "menu";
+ wv->value = 0;
+ wv->enabled = 1;
+ wv->button_type = BUTTON_TYPE_NONE;
+ wv->help = Qnil;
+ first_wv = wv;
+ save_wv = 0;
+ prev_wv = 0;
+
+ /* Loop over all panes and items made by the preceding call
+ to parse_single_submenu and construct a tree of widget_value objects.
+ Ignore the panes and items used by previous calls to
+ digest_single_submenu, even though those are also in menu_items. */
+ i = start;
+ while (i < end)
+ {
+ 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];
+
+ #ifndef HAVE_MULTILINGUAL_MENU
+ if (STRINGP (pane_name) && STRING_MULTIBYTE (pane_name))
+ {
+ pane_name = ENCODE_SYSTEM (pane_name);
+ AREF (menu_items, i + MENU_ITEMS_PANE_NAME) = pane_name;
+ }
+ #endif
+ pane_string = (NILP (pane_name)
+ ? "" : (char *) SDATA (pane_name));
+ /* 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->lname = pane_name;
+ /* Set value to 1 so update_submenu_strings can handle '@' */
+ wv->value = (char *)1;
+ wv->enabled = 1;
+ wv->button_type = BUTTON_TYPE_NONE;
+ wv->help = Qnil;
+ }
+ 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, type, selected;
+ Lisp_Object help;
+
+ item_name = AREF (menu_items, i + MENU_ITEMS_ITEM_NAME);
+ enable = AREF (menu_items, i + MENU_ITEMS_ITEM_ENABLE);
+ descrip = AREF (menu_items, i + MENU_ITEMS_ITEM_EQUIV_KEY);
+ def = AREF (menu_items, i + MENU_ITEMS_ITEM_DEFINITION);
+ type = AREF (menu_items, i + MENU_ITEMS_ITEM_TYPE);
+ selected = AREF (menu_items, i + MENU_ITEMS_ITEM_SELECTED);
+ help = AREF (menu_items, i + MENU_ITEMS_ITEM_HELP);
+
+ #ifndef HAVE_MULTILINGUAL_MENU
+ if (STRING_MULTIBYTE (item_name))
+ {
+ item_name = ENCODE_MENU_STRING (item_name);
+ AREF (menu_items, i + MENU_ITEMS_ITEM_NAME) = item_name;
+ }
+
+ if (STRINGP (descrip) && STRING_MULTIBYTE (descrip))
+ {
+ descrip = ENCODE_MENU_STRING (descrip);
+ AREF (menu_items, i + MENU_ITEMS_ITEM_EQUIV_KEY) = descrip;
+ }
+ #endif /* not HAVE_MULTILINGUAL_MENU */
+
+ wv = xmalloc_widget_value ();
+ if (prev_wv)
+ prev_wv->next = wv;
+ else
+ save_wv->contents = wv;
+
+ wv->lname = item_name;
+ if (!NILP (descrip))
+ wv->lkey = descrip;
+ 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);
+
+ if (NILP (type))
+ wv->button_type = BUTTON_TYPE_NONE;
+ else if (EQ (type, QCradio))
+ wv->button_type = BUTTON_TYPE_RADIO;
+ else if (EQ (type, QCtoggle))
+ wv->button_type = BUTTON_TYPE_TOGGLE;
+ else
+ abort ();
+
+ wv->selected = !NILP (selected);
+ if (! STRINGP (help))
+ help = Qnil;
+
+ wv->help = help;
+
+ 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;
+ }
+
+ /* Walk through the widget_value tree starting at FIRST_WV and update
+ the char * pointers from the corresponding lisp values.
+ We do this after building the whole tree, since GC may happen while the
+ tree is constructed, and small strings are relocated. So we must wait
+ until no GC can happen before storing pointers into lisp values. */
+ static void
+ update_submenu_strings (first_wv)
+ widget_value *first_wv;
+ {
+ widget_value *wv;
+
+ for (wv = first_wv; wv; wv = wv->next)
+ {
+ if (wv->lname && ! NILP (wv->lname))
+ {
+ wv->name = SDATA (wv->lname);
+
+ /* Ignore the @ that means "separate pane".
+ This is a kludge, but this isn't worth more time. */
+ if (wv->value == (char *)1)
+ {
+ if (wv->name[0] == '@')
+ wv->name++;
+ wv->value = 0;
+ }
+ }
+
+ if (wv->lkey && ! NILP (wv->lkey))
+ wv->key = SDATA (wv->lkey);
+
+ if (wv->contents)
+ update_submenu_strings (wv->contents);
+ }
+ }
+
+
+ /* Recompute all the widgets of frame F, when the menu bar has been
+ changed. Value is non-zero if widgets were updated. */
+
+ static int
+ update_frame_menubar (f)
+ FRAME_PTR f;
+ {
+ #ifdef USE_GTK
+ return xg_update_frame_menubar (f);
+ #else
+ struct x_output *x = f->output_data.x;
+ int columns, rows;
+
+ if (!x->menubar_widget || XtIsManaged (x->menubar_widget))
+ return 0;
+
+ BLOCK_INPUT;
+ /* Save the size of the frame because the pane widget doesn't accept
+ to resize itself. So force it. */
+ columns = FRAME_COLS (f);
+ rows = FRAME_LINES (f);
+
+ /* 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. */
+ XtManageChild (x->menubar_widget);
+ XtMapWidget (x->menubar_widget);
+ XtVaSetValues (x->menubar_widget, XtNmappedWhenManaged, 1, NULL);
+
+ /* 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;
+ #endif
+ return 1;
+ }
+
+ /* 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;
+ {
+ xt_or_gtk_widget menubar_widget = f->output_data.x->menubar_widget;
+ #ifdef USE_X_TOOLKIT
+ LWLIB_ID id;
+ #endif
+ Lisp_Object items;
+ widget_value *wv, *first_wv, *prev_wv = 0;
+ int i, last_i;
+ int *submenu_start, *submenu_end;
+ int *submenu_top_level_items, *submenu_n_panes;
+
+
+ XSETFRAME (Vmenu_updating_frame, f);
+
+ #ifdef USE_X_TOOLKIT
+ if (f->output_data.x->id == 0)
+ f->output_data.x->id = next_menubar_widget_id++;
+ id = f->output_data.x->id;
+ #endif
+
+ 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;
+ }
+
+ #ifdef USE_GTK
+ /* If we have detached menus, we must update deep so detached menus
+ also gets updated. */
+ deep_p = deep_p || xg_have_tear_offs ();
+ #endif
+
+ 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_INDEX ();
+ 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));
+ record_unwind_protect (unuse_menu_items, 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. */
+ safe_run_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);
+
+ /* Save the frame's previous menu bar contents data. */
+ if (previous_menu_items_used)
+ bcopy (XVECTOR (f->menu_bar_vector)->contents, previous_items,
+ previous_menu_items_used * sizeof (Lisp_Object));
+
+ /* Fill in menu_items with the current menu bar contents.
+ This can evaluate Lisp code. */
+ menu_items = f->menu_bar_vector;
+ menu_items_allocated = VECTORP (menu_items) ? ASIZE (menu_items) : 0;
+ submenu_start = (int *) alloca (XVECTOR (items)->size * sizeof (int *));
+ submenu_end = (int *) alloca (XVECTOR (items)->size * sizeof (int *));
+ submenu_n_panes = (int *) alloca (XVECTOR (items)->size * sizeof (int));
+ submenu_top_level_items
+ = (int *) alloca (XVECTOR (items)->size * sizeof (int *));
+ init_menu_items ();
+ for (i = 0; i < XVECTOR (items)->size; i += 4)
+ {
+ Lisp_Object key, string, maps;
+
+ last_i = i;
+
+ key = XVECTOR (items)->contents[i];
+ string = XVECTOR (items)->contents[i + 1];
+ maps = XVECTOR (items)->contents[i + 2];
+ if (NILP (string))
+ break;
+
+ submenu_start[i] = menu_items_used;
+
+ menu_items_n_panes = 0;
+ submenu_top_level_items[i]
+ = parse_single_submenu (key, string, maps);
+ submenu_n_panes[i] = menu_items_n_panes;
+
+ submenu_end[i] = menu_items_used;
+ }
+
+ finish_menu_items ();
+
+ /* Convert menu_items into widget_value trees
+ to display the menu. This cannot evaluate Lisp code. */
+
+ wv = xmalloc_widget_value ();
+ wv->name = "menubar";
+ wv->value = 0;
+ wv->enabled = 1;
+ wv->button_type = BUTTON_TYPE_NONE;
+ wv->help = Qnil;
+ first_wv = wv;
+
+ for (i = 0; i < last_i; i += 4)
+ {
+ menu_items_n_panes = submenu_n_panes[i];
+ wv = digest_single_submenu (submenu_start[i], submenu_end[i],
+ submenu_top_level_items[i]);
+ 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;
+ wv->button_type = BUTTON_TYPE_NONE;
+ prev_wv = wv;
+ }
+
+ 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);
+ discard_menu_items ();
+
+ 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 *) SDATA (string);
+ update_submenu_strings (wv->contents);
+ wv = wv->next;
+ }
+
+ f->menu_bar_vector = menu_items;
+ f->menu_bar_items_used = menu_items_used;
+ discard_menu_items ();
+ }
+ else
+ {
+ /* Make a widget-value tree containing
+ just the top level menu bar strings. */
+
+ wv = xmalloc_widget_value ();
+ wv->name = "menubar";
+ wv->value = 0;
+ wv->enabled = 1;
+ wv->button_type = BUTTON_TYPE_NONE;
+ wv->help = Qnil;
+ first_wv = wv;
+
+ 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 *) SDATA (string);
+ wv->value = 0;
+ wv->enabled = 1;
+ wv->button_type = BUTTON_TYPE_NONE;
+ wv->help = Qnil;
+ /* 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;
+
+ #ifdef USE_GTK
+ xg_crazy_callback_abort = 1;
+ if (menubar_widget)
+ {
+ /* The fourth arg is DEEP_P, which says to consider the entire
+ menu trees we supply, rather than just the menu bar item names. */
+ xg_modify_menubar_widgets (menubar_widget,
+ f,
+ first_wv,
+ deep_p,
+ G_CALLBACK (menubar_selection_callback),
+ G_CALLBACK (popup_deactivate_callback),
+ G_CALLBACK (menu_highlight_callback));
+ }
+ else
+ {
+ GtkWidget *wvbox = f->output_data.x->vbox_widget;
+
+ menubar_widget
+ = xg_create_widget ("menubar", "menubar", f, first_wv,
+ G_CALLBACK (menubar_selection_callback),
+ G_CALLBACK (popup_deactivate_callback),
+ G_CALLBACK (menu_highlight_callback));
+
+ f->output_data.x->menubar_widget = menubar_widget;
+ }
+
+
+ #else /* not USE_GTK */
+ 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,
+ menu_highlight_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;
+ }
+ #endif /* not USE_GTK */
+
+ free_menubar_widget_value_tree (first_wv);
+ update_frame_menubar (f);
+
+ #ifdef USE_GTK
+ xg_crazy_callback_abort = 0;
+ #endif
+
+ UNBLOCK_INPUT;
+ }
+
+ /* 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.
+ For GTK this function is in gtkutil.c. */
+
+ #ifndef USE_GTK
+ void
+ free_frame_menubar (f)
+ FRAME_PTR f;
+ {
+ Widget menubar_widget;
+
+ menubar_widget = f->output_data.x->menubar_widget;
+
+ f->output_data.x->menubar_height = 0;
+
+ if (menubar_widget)
+ {
+ #ifdef USE_MOTIF
+ /* Removing the menu bar magically changes the shell widget's x
+ and y position of (0, 0) which, when the menu bar is turned
+ on again, leads to pull-down menuss appearing in strange
+ positions near the upper-left corner of the display. This
+ happens only with some window managers like twm and ctwm,
+ but not with other like Motif's mwm or kwm, because the
+ latter generate ConfigureNotify events when the menu bar
+ is switched off, which fixes the shell position. */
+ Position x0, y0, x1, y1;
+ #endif
+
+ BLOCK_INPUT;
+
+ #ifdef USE_MOTIF
+ if (f->output_data.x->widget)
+ XtVaGetValues (f->output_data.x->widget, XtNx, &x0, XtNy, &y0, NULL);
+ #endif
+
+ lw_destroy_all_widgets ((LWLIB_ID) f->output_data.x->id);
+ f->output_data.x->menubar_widget = NULL;
+
+ #ifdef USE_MOTIF
+ if (f->output_data.x->widget)
+ {
+ XtVaGetValues (f->output_data.x->widget, XtNx, &x1, XtNy, &y1, NULL);
+ if (x1 == 0 && y1 == 0)
+ XtVaSetValues (f->output_data.x->widget, XtNx, x0, XtNy, y0, NULL);
+ }
+ #endif
+
+ UNBLOCK_INPUT;
+ }
+ }
+ #endif /* not USE_GTK */
+
+ #endif /* USE_X_TOOLKIT || USE_GTK */
+
+ /* 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.) */
+
+ #if defined (USE_X_TOOLKIT) || defined (USE_GTK)
+
+ /* The item selected in the popup menu. */
+ static Lisp_Object *volatile menu_item_selection;
+
+ #ifdef USE_GTK
+
+ /* Used when position a popup menu. See menu_position_func and
+ create_and_show_popup_menu below. */
+ struct next_popup_x_y
+ {
+ FRAME_PTR f;
+ int x;
+ int y;
+ };
+
+ /* The menu position function to use if we are not putting a popup
+ menu where the pointer is.
+ MENU is the menu to pop up.
+ X and Y shall on exit contain x/y where the menu shall pop up.
+ PUSH_IN is not documented in the GTK manual.
+ USER_DATA is any data passed in when calling gtk_menu_popup.
+ Here it points to a struct next_popup_x_y where the coordinates
+ to store in *X and *Y are as well as the frame for the popup.
+
+ Here only X and Y are used. */
+ static void
+ menu_position_func (menu, x, y, push_in, user_data)
+ GtkMenu *menu;
+ gint *x;
+ gint *y;
+ gboolean *push_in;
+ gpointer user_data;
+ {
+ struct next_popup_x_y* data = (struct next_popup_x_y*)user_data;
+ GtkRequisition req;
+ int disp_width = FRAME_X_DISPLAY_INFO (data->f)->width;
+ int disp_height = FRAME_X_DISPLAY_INFO (data->f)->height;
+
+ *x = data->x;
+ *y = data->y;
+
+ /* Check if there is room for the menu. If not, adjust x/y so that
+ the menu is fully visible. */
+ gtk_widget_size_request (GTK_WIDGET (menu), &req);
+ if (data->x + req.width > disp_width)
+ *x -= data->x + req.width - disp_width;
+ if (data->y + req.height > disp_height)
+ *y -= data->y + req.height - disp_height;
+ }
+
+ static void
+ popup_selection_callback (widget, client_data)
+ GtkWidget *widget;
+ gpointer client_data;
+ {
+ xg_menu_item_cb_data *cb_data = (xg_menu_item_cb_data*) client_data;
+
+ if (xg_crazy_callback_abort) return;
+ if (cb_data) menu_item_selection = (Lisp_Object *) cb_data->call_data;
+ }
+
+ /* Pop up the menu for frame F defined by FIRST_WV at X/Y and loop until the
+ menu pops down.
+ menu_item_selection will be set to the selection. */
+ static void
+ create_and_show_popup_menu (f, first_wv, x, y, for_click)
+ FRAME_PTR f;
+ widget_value *first_wv;
+ int x;
+ int y;
+ int for_click;
+ {
+ int i;
+ GtkWidget *menu;
+ GtkMenuPositionFunc pos_func = 0; /* Pop up at pointer. */
+ struct next_popup_x_y popup_x_y;
+
+ xg_crazy_callback_abort = 1;
+ menu = xg_create_widget ("popup", first_wv->name, f, first_wv,
+ G_CALLBACK (popup_selection_callback),
+ G_CALLBACK (popup_deactivate_callback),
+ G_CALLBACK (menu_highlight_callback));
+ xg_crazy_callback_abort = 0;
+
+ for (i = 0; i < 5; i++)
+ if (FRAME_X_DISPLAY_INFO (f)->grabbed & (1 << i))
+ break;
+
+ if (! for_click)
+ {
+ /* Not invoked by a click. pop up at x/y. */
+ pos_func = menu_position_func;
+
+ /* Adjust coordinates to be root-window-relative. */
+ x += f->left_pos + FRAME_OUTER_TO_INNER_DIFF_X (f);
+ y += f->top_pos + FRAME_OUTER_TO_INNER_DIFF_Y (f);
+
+ popup_x_y.x = x;
+ popup_x_y.y = y;
+ popup_x_y.f = f;
+ }
+
+ /* Display the menu. */
+ gtk_widget_show_all (menu);
+ gtk_menu_popup (GTK_MENU (menu), 0, 0, pos_func, &popup_x_y, i, 0);
+
+ /* Set this to one. popup_widget_loop increases it by one, so it becomes
+ two. show_help_echo uses this to detect popup menus. */
+ popup_activated_flag = 1;
+ /* Process events that apply to the menu. */
+ popup_widget_loop ();
+
+ gtk_widget_destroy (menu);
+
+ /* Must reset this manually because the button release event is not passed
+ to Emacs event loop. */
+ FRAME_X_DISPLAY_INFO (f)->grabbed = 0;
+ }
+
+ #else /* not USE_GTK */
+
+ /* 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;
+
+ static void
+ popup_selection_callback (widget, id, client_data)
+ Widget widget;
+ LWLIB_ID id;
+ XtPointer client_data;
+ {
+ menu_item_selection = (Lisp_Object *) client_data;
+ }
+
+ /* Pop up the menu for frame F defined by FIRST_WV at X/Y and loop until the
+ menu pops down.
+ menu_item_selection will be set to the selection. */
+ static void
+ create_and_show_popup_menu (f, first_wv, x, y, for_click)
+ FRAME_PTR f;
+ widget_value *first_wv;
+ int x;
+ int y;
+ int for_click;
+ {
+ int i;
+ Arg av[2];
+ int ac = 0;
+ XButtonPressedEvent dummy;
+ LWLIB_ID menu_id;
+ Widget 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,
+ menu_highlight_callback);
+
+ 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 = x;
+ dummy.y = y;
+
+ /* Adjust coordinates to be root-window-relative. */
+ x += f->left_pos + FRAME_OUTER_TO_INNER_DIFF_X (f);
+ y += f->top_pos + FRAME_OUTER_TO_INNER_DIFF_Y (f);
+
+ dummy.x_root = x;
+ dummy.y_root = y;
+
+ dummy.state = 0;
+ 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);
+
+ /* Display the menu. */
+ lw_popup_menu (menu, (XEvent *) &dummy);
+ popup_activated_flag = 1;
+
+ /* Process events that apply to the menu. */
+ popup_get_selection ((XEvent *) 0, FRAME_X_DISPLAY_INFO (f), menu_id, 0, 0);
+
+ /* 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);
+ }
+
+ #endif /* not USE_GTK */
+
+ 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;
+ 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;
+
+ int first_pane;
+
+ *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;
+ wv->button_type = BUTTON_TYPE_NONE;
+ wv->help =Qnil;
+ 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 = AREF (menu_items, i + MENU_ITEMS_PANE_NAME);
+ prefix = AREF (menu_items, i + MENU_ITEMS_PANE_PREFIX);
+
+ #ifndef HAVE_MULTILINGUAL_MENU
+ if (STRINGP (pane_name) && STRING_MULTIBYTE (pane_name))
+ {
+ pane_name = ENCODE_SYSTEM (pane_name);
+ AREF (menu_items, i + MENU_ITEMS_PANE_NAME) = pane_name;
+ }
+ #endif
+ pane_string = (NILP (pane_name)
+ ? "" : (char *) SDATA (pane_name));
+ /* 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;
+ wv->button_type = BUTTON_TYPE_NONE;
+ wv->help = Qnil;
+ 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, type, selected, help;
+ item_name = AREF (menu_items, i + MENU_ITEMS_ITEM_NAME);
+ enable = AREF (menu_items, i + MENU_ITEMS_ITEM_ENABLE);
+ descrip = AREF (menu_items, i + MENU_ITEMS_ITEM_EQUIV_KEY);
+ def = AREF (menu_items, i + MENU_ITEMS_ITEM_DEFINITION);
+ type = AREF (menu_items, i + MENU_ITEMS_ITEM_TYPE);
+ selected = AREF (menu_items, i + MENU_ITEMS_ITEM_SELECTED);
+ help = AREF (menu_items, i + MENU_ITEMS_ITEM_HELP);
+
+ #ifndef HAVE_MULTILINGUAL_MENU
+ if (STRINGP (item_name) && STRING_MULTIBYTE (item_name))
+ {
+ item_name = ENCODE_MENU_STRING (item_name);
+ AREF (menu_items, i + MENU_ITEMS_ITEM_NAME) = item_name;
+ }
+
+ if (STRINGP (descrip) && STRING_MULTIBYTE (descrip))
+ {
+ descrip = ENCODE_MENU_STRING (descrip);
+ AREF (menu_items, i + MENU_ITEMS_ITEM_EQUIV_KEY) = descrip;
+ }
+ #endif /* not HAVE_MULTILINGUAL_MENU */
+
+ wv = xmalloc_widget_value ();
+ if (prev_wv)
+ prev_wv->next = wv;
+ else
+ save_wv->contents = wv;
+ wv->name = (char *) SDATA (item_name);
+ if (!NILP (descrip))
+ wv->key = (char *) SDATA (descrip);
+ 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);
+
+ if (NILP (type))
+ wv->button_type = BUTTON_TYPE_NONE;
+ else if (EQ (type, QCtoggle))
+ wv->button_type = BUTTON_TYPE_TOGGLE;
+ else if (EQ (type, QCradio))
+ wv->button_type = BUTTON_TYPE_RADIO;
+ else
+ abort ();
+
+ wv->selected = !NILP (selected);
+
+ if (! STRINGP (help))
+ help = Qnil;
+
+ wv->help = help;
+
+ 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_sep2->help = Qnil;
+
+ wv_sep1->name = "--";
+ wv_sep1->next = wv_sep2;
+ wv_sep1->help = Qnil;
+
+ #ifndef HAVE_MULTILINGUAL_MENU
+ if (STRING_MULTIBYTE (title))
+ title = ENCODE_MENU_STRING (title);
+ #endif
+
+ wv_title->name = (char *) SDATA (title);
+ wv_title->enabled = TRUE;
+ wv_title->button_type = BUTTON_TYPE_NONE;
+ wv_title->next = wv_sep1;
+ wv_title->help = Qnil;
+ first_wv->contents = wv_title;
+ }
+
+ /* No selection has been chosen yet. */
+ menu_item_selection = 0;
+
+ /* Actually create and show the menu until popped down. */
+ create_and_show_popup_menu (f, first_wv, x, y, for_click);
+
+ /* Free the widget_value objects we used to specify the contents. */
+ free_menubar_widget_value_tree (first_wv);
+
+ /* Find the selected item, and its pane, to return
+ the proper value. */
+ if (menu_item_selection != 0)
+ {
+ Lisp_Object prefix, entry;
+
+ prefix = entry = 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;
+ }
+
+ #ifdef USE_GTK
+ static void
+ dialog_selection_callback (widget, client_data)
+ GtkWidget *widget;
+ gpointer 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;
+
+ popup_activated_flag = 0;
+ }
+
+ /* Pop up the dialog for frame F defined by FIRST_WV and loop until the
+ dialog pops down.
+ menu_item_selection will be set to the selection. */
+ static void
+ create_and_show_dialog (f, first_wv)
+ FRAME_PTR f;
+ widget_value *first_wv;
+ {
+ GtkWidget *menu;
+
+ menu = xg_create_widget ("dialog", first_wv->name, f, first_wv,
+ G_CALLBACK (dialog_selection_callback),
+ G_CALLBACK (popup_deactivate_callback),
+ 0);
+
+ if (menu)
+ {
+ /* Display the menu. */
+ gtk_widget_show_all (menu);
+
+ /* Process events that apply to the menu. */
+ popup_widget_loop ();
+
+ gtk_widget_destroy (menu);
+ }
+ }
+
+ #else /* not USE_GTK */
+ 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;
+ }
+
+
+ /* ARG is the LWLIB ID of the dialog box, represented
+ as a Lisp object as (HIGHPART . LOWPART). */
+
+ Lisp_Object
+ xdialog_show_unwind (arg)
+ Lisp_Object arg;
+ {
+ LWLIB_ID id = (XINT (XCAR (arg)) << 4 * sizeof (LWLIB_ID)
+ | XINT (XCDR (arg)));
+ BLOCK_INPUT;
+ lw_destroy_all_widgets (id);
+ UNBLOCK_INPUT;
+ popup_activated_flag = 0;
+ return Qnil;
+ }
+
+
+ /* Pop up the dialog for frame F defined by FIRST_WV and loop until the
+ dialog pops down.
+ menu_item_selection will be set to the selection. */
+ static void
+ create_and_show_dialog (f, first_wv)
+ FRAME_PTR f;
+ widget_value *first_wv;
+ {
+ LWLIB_ID dialog_id;
+
+ dialog_id = widget_id_tick++;
+ lw_create_widget (first_wv->name, "dialog", dialog_id, first_wv,
+ f->output_data.x->widget, 1, 0,
+ dialog_selection_callback, 0, 0);
+ lw_modify_all_widgets (dialog_id, first_wv->contents, True);
+
+ /* Display the dialog box. */
+ lw_pop_up_all_widgets (dialog_id);
+ popup_activated_flag = 1;
+
+ /* Process events that apply to the dialog box.
+ Also handle timers. */
+ {
+ int count = SPECPDL_INDEX ();
+ int fact = 4 * sizeof (LWLIB_ID);
+
+ /* xdialog_show_unwind is responsible for popping the dialog box down. */
+ record_unwind_protect (xdialog_show_unwind,
+ Fcons (make_number (dialog_id >> (fact)),
+ make_number (dialog_id & ~(-1 << (fact)))));
+
+ popup_get_selection ((XEvent *) 0, FRAME_X_DISPLAY_INFO (f),
+ dialog_id, 1, 1);
+
+ unbind_to (count, Qnil);
+ }
+ }
+
+ #endif /* not USE_GTK */
+
+ 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;
+ char dialog_name[6];
+
+ widget_value *wv, *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 *) SDATA (pane_name));
+ 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";
+ prev_wv->help = Qnil;
+ 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 *) SDATA (descrip);
+ wv->value = (char *) SDATA (item_name);
+ wv->call_data = (void *) &XVECTOR (menu_items)->contents[i];
+ wv->enabled = !NILP (enable);
+ wv->help = Qnil;
+ 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;
+ wv->help = Qnil;
+ /* 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;
+ }
+
+ /* No selection has been chosen yet. */
+ menu_item_selection = 0;
+
+ /* Actually create and show the dialog. */
+ create_and_show_dialog (f, first_wv);
+
+ /* Free the widget_value objects we used to specify the contents. */
+ free_menubar_widget_value_tree (first_wv);
+
+ /* 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 if (EQ (XVECTOR (menu_items)->contents[i], Qquote))
+ {
+ /* This is the boundary between left-side elts and
+ right-side elts. */
+ ++i;
+ }
+ 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 && not USE_GTK */
+
+ /* The frame of the last activated non-toolkit menu bar.
+ Used to generate menu help events. */
+
+ static struct frame *menu_help_frame;
+
+
+ /* Show help HELP_STRING, or clear help if HELP_STRING is null.
+
+ PANE is the pane number, and ITEM is the menu item number in
+ the menu (currently not used).
+
+ This cannot be done with generating a HELP_EVENT because
+ XMenuActivate contains a loop that doesn't let Emacs process
+ keyboard events. */
+
+ static void
+ menu_help_callback (help_string, pane, item)
+ char *help_string;
+ int pane, item;
+ {
+ extern Lisp_Object Qmenu_item;
+ Lisp_Object *first_item;
+ Lisp_Object pane_name;
+ Lisp_Object menu_object;
+
+ first_item = XVECTOR (menu_items)->contents;
+ if (EQ (first_item[0], Qt))
+ pane_name = first_item[MENU_ITEMS_PANE_NAME];
+ else if (EQ (first_item[0], Qquote))
+ /* This shouldn't happen, see xmenu_show. */
+ pane_name = empty_string;
+ else
+ pane_name = first_item[MENU_ITEMS_ITEM_NAME];
+
+ /* (menu-item MENU-NAME PANE-NUMBER) */
+ menu_object = Fcons (Qmenu_item,
+ Fcons (pane_name,
+ Fcons (make_number (pane), Qnil)));
+ show_help_echo (help_string ? build_string (help_string) : Qnil,
+ Qnil, menu_object, make_number (item), 1);
+ }
+
+
+ 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->left_pos;
+ y += f->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 *) SDATA (pane_name));
+ 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 = SBYTES (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, help;
+ unsigned char *item_data;
+ char *help_string;
+
+ 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];
+ help = XVECTOR (menu_items)->contents[i + MENU_ITEMS_ITEM_HELP];
+ help_string = STRINGP (help) ? SDATA (help) : NULL;
+
+ if (!NILP (descrip))
+ {
+ int gap = maxwidth - SBYTES (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 = SDATA (item_name);
+ #else
+ /* if alloca is fast, use that to make the space,
+ to reduce gc needs. */
+ item_data
+ = (unsigned char *) alloca (maxwidth
+ + SBYTES (descrip) + 1);
+ bcopy (SDATA (item_name), item_data,
+ SBYTES (item_name));
+ for (j = SCHARS (item_name); j < maxwidth; j++)
+ item_data[j] = ' ';
+ bcopy (SDATA (descrip), item_data + j,
+ SBYTES (descrip));
+ item_data[j + SBYTES (descrip)] = 0;
+ #endif
+ }
+ else
+ item_data = SDATA (item_name);
+
+ if (XMenuAddSelection (FRAME_X_DISPLAY (f),
+ menu, lpane, 0, item_data,
+ !NILP (enable), help_string)
+ == 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), FRAME_X_SCREEN_NUMBER (f));
+ dispheight = DisplayHeight (FRAME_X_DISPLAY (f), FRAME_X_SCREEN_NUMBER (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;
+
+ /* Help display under X won't work because XMenuActivate contains
+ a loop that doesn't give Emacs a chance to process it. */
+ menu_help_frame = f;
+ status = XMenuActivate (FRAME_X_DISPLAY (f), menu, &pane, &selidx,
+ x, y, ButtonReleaseMask, &datap,
+ menu_help_callback);
+
+
+ #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 */
+
+ #endif /* HAVE_MENUS */
+
+ void
+ syms_of_xmenu ()
+ {
+ staticpro (&menu_items);
+ menu_items = Qnil;
+ menu_items_inuse = Qnil;
+
+ Qdebug_on_next_call = intern ("debug-on-next-call");
+ staticpro (&Qdebug_on_next_call);
+
+ DEFVAR_LISP ("menu-updating-frame", &Vmenu_updating_frame,
+ doc: /* Frame for which we are updating a menu.
+ The enable predicate for a menu command should check this variable. */);
+ Vmenu_updating_frame = Qnil;
+
+ #ifdef USE_X_TOOLKIT
+ widget_id_tick = (1<<16);
+ next_menubar_widget_id = 1;
+ #endif
+
+ defsubr (&Sx_popup_menu);
+ #ifdef HAVE_MENUS
+ defsubr (&Sx_popup_dialog);
+ #endif
+ }
+
+ /* arch-tag: 92ea573c-398e-496e-ac73-2436f7d63242
+ (do not change this comment) */
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Miles Bader <=