-/* X Communication module for terminals which understand the X protocol.
- Copyright (C) 1986, 1988, 1992 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, 675 Mass Ave, Cambridge, MA 02139, USA. */
-
-/* X pop-up deck-of-cards menu facility for gnuemacs.
- *
- * Written by Jon Arnold and Roman Budzianowski
- * Mods and rewrite by Robert Krawitz
- *
- */
-
-#ifdef XDEBUG
-#include <stdio.h>
-#endif
-
-/* On 4.3 this loses if it comes after xterm.h. */
-#include <signal.h>
-#include "config.h"
-#include "lisp.h"
-#include "frame.h"
-#include "window.h"
-#include "keyboard.h"
-
-/* This may include sys/types.h, and that somehow loses
- if this is not done before the other system files. */
-#include "xterm.h"
-
-/* 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_X11
-#include "../oldXMenu/XMenu.h"
-#else
-#include <X/XMenu.h>
-#endif
-
-#define min(x,y) (((x) < (y)) ? (x) : (y))
-#define max(x,y) (((x) > (y)) ? (x) : (y))
-
-#define NUL 0
-
-#ifndef TRUE
-#define TRUE 1
-#define FALSE 0
-#endif TRUE
-
-#ifdef HAVE_X11
-extern Display *x_current_display;
-#else
-#define ButtonReleaseMask ButtonReleased
-#endif /* not HAVE_X11 */
-
-Lisp_Object xmenu_show ();
-extern int x_error_handler ();
-
-/*************************************************************/
-
-#if 0
-/* Ignoring the args is easiest. */
-xmenu_quit ()
-{
- error ("Unknown XMenu error");
-}
-#endif
-
-DEFUN ("x-popup-menu",Fx_popup_menu, Sx_popup_menu, 1, 2, 0,
- "Pop up a deck-of-cards menu and return user's selection.\n\
-POSITION is a position specification. This is either a mouse button event\n\
-or a list ((XOFFSET YOFFSET) WINDOW)\n\
-where XOFFSET and YOFFSET are positions in characters from the top left\n\
-corner of WINDOW's frame. A mouse-event list will serve for this.\n\
-This controls the position of the center of the first line\n\
-in the first pane of the menu, not the top left of the menu as a whole.\n\
-\n\
-MENU is a specifier for a menu. For the simplest case, MENU is a keymap.\n\
-The menu items come from key bindings that have a menu string as well as\n\
-a definition; actually, the \"definition\" in such a key binding looks like\n\
-\(STRING . REAL-DEFINITION). To give the menu a title, put a string into\n\
-the keymap as a top-level element.\n\n\
-You can also use a list of keymaps as MENU.\n\
- Then each keymap makes a separate pane.\n\n\
-Alternatively, you can specify a menu of multiple panes\n\
- with a list of the form\n\
-\(TITLE PANE1 PANE2...), where each pane is a list of form\n\
-\(TITLE (LINE ITEM)...). Each line should be a string, and item should\n\
-be the return value for that line (i.e. if it is selected.")
- (position, menu)
- Lisp_Object position, menu;
-{
- int number_of_panes;
- Lisp_Object XMenu_return, keymap, tem;
- int XMenu_xpos, XMenu_ypos;
- char **menus;
- char ***names;
- Lisp_Object **obj_list;
- int *items;
- char *title;
- char *error_name;
- Lisp_Object ltitle, selection;
- int i, j;
- FRAME_PTR f;
- Lisp_Object x, y, window;
-
- /* Decode the first argument: find the window and the coordinates. */
- tem = Fcar (position);
- if (XTYPE (tem) == Lisp_Cons)
- {
- window = Fcar (Fcdr (position));
- x = Fcar (tem);
- y = Fcar (Fcdr (tem));
- }
- else
- {
- tem = EVENT_START (position);
- window = POSN_WINDOW (tem);
- tem = POSN_WINDOW_POSN (tem);
- x = Fcar (tem);
- y = Fcdr (tem);
- }
- CHECK_LIVE_WINDOW (window, 0);
- CHECK_NUMBER (x, 0);
- CHECK_NUMBER (y, 0);
-
- f = XFRAME (WINDOW_FRAME (XWINDOW (window)));
-
- XMenu_xpos
- = FONT_WIDTH (f->display.x->font) * (XINT (x) + XWINDOW (window)->left);
- XMenu_ypos
- = FONT_HEIGHT (f->display.x->font) * (XINT (y) + XWINDOW (window)->top);
- XMenu_xpos += f->display.x->left_pos;
- XMenu_ypos += f->display.x->top_pos;
-
- keymap = Fkeymapp (menu);
- tem = Qnil;
- if (XTYPE (menu) == Lisp_Cons)
- tem = Fkeymapp (Fcar (menu));
- if (!NILP (keymap))
- {
- /* We were given a keymap. Extract menu info from the keymap. */
- Lisp_Object prompt;
- keymap = get_keymap (menu);
-
- /* Search for a string appearing directly as an element of the keymap.
- That string is the title of the menu. */
- prompt = map_prompt (keymap);
- if (!NILP (prompt))
- title = (char *) XSTRING (prompt)->data;
-
- /* Extract the detailed info to make one pane. */
- number_of_panes = keymap_panes (&obj_list, &menus, &names, &items,
- &menu, 1);
- /* The menu title seems to be ignored,
- so put it in the pane title. */
- if (menus[0] == 0)
- menus[0] = title;
- }
- else if (!NILP (tem))
- {
- /* We were given a list of keymaps. */
- Lisp_Object prompt;
- int nmaps = XFASTINT (Flength (menu));
- Lisp_Object *maps
- = (Lisp_Object *) alloca (nmaps * sizeof (Lisp_Object));
- int i;
- title = 0;
-
- /* The first keymap that has a prompt string
- supplies the menu title. */
- for (tem = menu, i = 0; XTYPE (tem) == Lisp_Cons; tem = Fcdr (tem))
- {
- maps[i++] = keymap = get_keymap (Fcar (tem));
-
- prompt = map_prompt (keymap);
- if (title == 0 && !NILP (prompt))
- title = (char *) XSTRING (prompt)->data;
- }
-
- /* Extract the detailed info to make one pane. */
- number_of_panes = keymap_panes (&obj_list, &menus, &names, &items,
- maps, nmaps);
- /* The menu title seems to be ignored,
- so put it in the pane title. */
- if (menus[0] == 0)
- menus[0] = title;
- }
- else
- {
- /* We were given an old-fashioned menu. */
- ltitle = Fcar (menu);
- CHECK_STRING (ltitle, 1);
- title = (char *) XSTRING (ltitle)->data;
- number_of_panes = list_of_panes (&obj_list, &menus, &names, &items,
- Fcdr (menu));
- }
-#ifdef XDEBUG
- fprintf (stderr, "Panes = %d\n", number_of_panes);
- for (i = 0; i < number_of_panes; i++)
- {
- fprintf (stderr, "Pane %d has lines %d title %s\n",
- i, items[i], menus[i]);
- for (j = 0; j < items[i]; j++)
- fprintf (stderr, " Item %d %s\n", j, names[i][j]);
- }
-#endif
- BLOCK_INPUT;
- selection = xmenu_show (ROOT_WINDOW, XMenu_xpos, XMenu_ypos, names, menus,
- items, number_of_panes, obj_list, title,
- &error_name);
- UNBLOCK_INPUT;
- /* fprintf (stderr, "selection = %x\n", selection); */
- if (selection != NUL)
- { /* selected something */
- XMenu_return = selection;
- }
- else
- { /* nothing selected */
- XMenu_return = Qnil;
- }
- /* now free up the strings */
- for (i = 0; i < number_of_panes; i++)
- {
- free (names[i]);
- free (obj_list[i]);
- }
- free (menus);
- free (obj_list);
- free (names);
- free (items);
- /* free (title); */
- if (error_name) error (error_name);
- return XMenu_return;
-}
-
-struct indices {
- int pane;
- int line;
-};
-
-Lisp_Object
-xmenu_show (parent, startx, starty, line_list, pane_list, line_cnt,
- pane_cnt, item_list, title, error)
- Window parent;
- int startx, starty; /* upper left corner position BROKEN */
- char **line_list[]; /* list of strings for items */
- char *pane_list[]; /* list of pane titles */
- char *title;
- int pane_cnt; /* total number of panes */
- Lisp_Object *item_list[]; /* All items */
- int line_cnt[]; /* Lines in each pane */
- char **error; /* Error returned */
-{
- XMenu *GXMenu;
- int last, panes, selidx, lpane, status;
- int lines, sofar;
- Lisp_Object entry;
- /* struct indices *datap, *datap_save; */
- char *datap;
- int ulx, uly, width, height;
- int dispwidth, dispheight;
-
- if (pane_cnt == 0)
- return 0;
-
- *error = (char *) 0; /* Initialize error pointer to null */
- GXMenu = XMenuCreate (XDISPLAY parent, "emacs");
- if (GXMenu == NUL)
- {
- *error = "Can't create menu";
- return (0);
- }
-
- for (panes = 0, lines = 0; panes < pane_cnt;
- lines += line_cnt[panes], panes++)
- ;
- /* datap = (struct indices *) xmalloc (lines * sizeof (struct indices)); */
- /* datap = (char *) xmalloc (lines * sizeof (char));
- datap_save = datap;*/
-
- for (panes = 0, sofar = 0; panes < pane_cnt;
- sofar += line_cnt[panes], panes++)
- {
- /* create all the necessary panes */
- lpane = XMenuAddPane (XDISPLAY GXMenu, pane_list[panes], TRUE);
- if (lpane == XM_FAILURE)
- {
- XMenuDestroy (XDISPLAY GXMenu);
- *error = "Can't create pane";
- return (0);
- }
- for (selidx = 0; selidx < line_cnt[panes]; selidx++)
- {
- /* add the selection stuff to the menus */
- /* datap[selidx+sofar].pane = panes;
- datap[selidx+sofar].line = selidx; */
- if (XMenuAddSelection (XDISPLAY GXMenu, lpane, 0,
- line_list[panes][selidx], TRUE)
- == XM_FAILURE)
- {
- XMenuDestroy (XDISPLAY GXMenu);
- /* free (datap); */
- *error = "Can't add selection to menu";
- /* error ("Can't add selection to menu"); */
- return (0);
- }
- }
- }
- /* all set and ready to fly */
- XMenuRecompute (XDISPLAY GXMenu);
- dispwidth = DisplayWidth (x_current_display, XDefaultScreen (x_current_display));
- dispheight = DisplayHeight (x_current_display, XDefaultScreen (x_current_display));
- startx = min (startx, dispwidth);
- starty = min (starty, dispheight);
- startx = max (startx, 1);
- starty = max (starty, 1);
- XMenuLocate (XDISPLAY GXMenu, 0, 0, startx, starty,
- &ulx, &uly, &width, &height);
- if (ulx+width > dispwidth)
- {
- startx -= (ulx + width) - dispwidth;
- ulx = dispwidth - width;
- }
- if (uly+height > dispheight)
- {
- starty -= (uly + height) - dispheight;
- uly = dispheight - height;
- }
- if (ulx < 0) startx -= ulx;
- if (uly < 0) starty -= uly;
-
- XMenuSetFreeze (GXMenu, TRUE);
- panes = selidx = 0;
-
- status = XMenuActivate (XDISPLAY GXMenu, &panes, &selidx,
- startx, starty, ButtonReleaseMask, &datap);
- switch (status)
- {
- case XM_SUCCESS:
-#ifdef XDEBUG
- fprintf (stderr, "pane= %d line = %d\n", panes, selidx);
-#endif
- entry = item_list[panes][selidx];
- break;
- case XM_FAILURE:
- /* free (datap_save); */
- XMenuDestroy (XDISPLAY GXMenu);
- *error = "Can't activate menu";
- /* error ("Can't activate menu"); */
- case XM_IA_SELECT:
- case XM_NO_SELECT:
- entry = Qnil;
- break;
- }
- XMenuDestroy (XDISPLAY GXMenu);
- /* free (datap_save);*/
- return (entry);
-}
-
-syms_of_xmenu ()
-{
- defsubr (&Sx_popup_menu);
-}
-\f
-/* Construct the vectors that describe a menu
- and store them in *VECTOR, *PANES, *NAMES and *ITEMS.
- Each of those four values is a vector indexed by pane number.
- Return the number of panes.
-
- KEYMAPS is a vector of keymaps. NMAPS gives the length of KEYMAPS. */
-
-int
-keymap_panes (vector, panes, names, items, keymaps, nmaps)
- Lisp_Object ***vector; /* RETURN all menu objects */
- char ***panes; /* RETURN pane names */
- char ****names; /* RETURN all line names */
- int **items; /* RETURN number of items per pane */
- Lisp_Object *keymaps;
- int nmaps;
-{
- /* Number of panes we have made. */
- int p = 0;
- /* Number of panes we have space for. */
- int npanes_allocated = nmaps;
- int mapno;
-
- if (npanes_allocated < 4)
- npanes_allocated = 4;
-
- /* Make space for an estimated number of panes. */
- *vector = (Lisp_Object **) xmalloc (npanes_allocated * sizeof (Lisp_Object *));
- *panes = (char **) xmalloc (npanes_allocated * sizeof (char *));
- *items = (int *) xmalloc (npanes_allocated * sizeof (int));
- *names = (char ***) xmalloc (npanes_allocated * sizeof (char **));
-
- /* 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], panes, vector, names, items,
- &p, &npanes_allocated, "");
-
- /* Return the number of panes. */
- return p;
-}
-
-/* This is a recursive subroutine of the previous function.
- It handles one keymap, KEYMAP.
- The other arguments are passed along
- or point to local variables of the previous function. */
-
-single_keymap_panes (keymap, panes, vector, names, items,
- p_ptr, npanes_allocated_ptr, pane_name)
- Lisp_Object keymap;
- Lisp_Object ***vector; /* RETURN all menu objects */
- char ***panes; /* RETURN pane names */
- char ****names; /* RETURN all line names */
- int **items; /* RETURN number of items per pane */
- int *p_ptr;
- int *npanes_allocated_ptr;
- char *pane_name;
-{
- int i;
- Lisp_Object pending_maps;
- Lisp_Object tail, item, item1, item2, table;
-
- pending_maps = Qnil;
-
- /* Make sure we have room for another pane. */
- if (*p_ptr == *npanes_allocated_ptr)
- {
- *npanes_allocated_ptr *= 2;
-
- *vector
- = (Lisp_Object **) xrealloc (*vector,
- *npanes_allocated_ptr * sizeof (Lisp_Object *));
- *panes
- = (char **) xrealloc (*panes,
- *npanes_allocated_ptr * sizeof (char *));
- *items
- = (int *) xrealloc (*items,
- *npanes_allocated_ptr * sizeof (int));
- *names
- = (char ***) xrealloc (*names,
- *npanes_allocated_ptr * sizeof (char **));
- }
-
- /* When a menu comes from keymaps, don't give names to the panes. */
- (*panes)[*p_ptr] = pane_name;
-
- /* Get the length of the list level of the keymap. */
- i = XFASTINT (Flength (keymap));
-
- /* Add in lengths of any arrays. */
- for (tail = keymap; XTYPE (tail) == Lisp_Cons; tail = XCONS (tail)->cdr)
- if (XTYPE (XCONS (tail)->car) == Lisp_Vector)
- i += XVECTOR (XCONS (tail)->car)->size;
-
- /* Create vectors for the names and values of the items in the pane.
- I is an upper bound for the number of items. */
- (*vector)[*p_ptr] = (Lisp_Object *) xmalloc (i * sizeof (Lisp_Object));
- (*names)[*p_ptr] = (char **) xmalloc (i * sizeof (char *));
-
- /* I is now the index of the next unused slots. */
- i = 0;
- for (tail = keymap; XTYPE (tail) == Lisp_Cons; tail = XCONS (tail)->cdr)
- {
- /* Look at each key binding, and if it has a menu string,
- make a menu item from it. */
- item = XCONS (tail)->car;
- if (XTYPE (item) == Lisp_Cons)
- {
- item1 = XCONS (item)->cdr;
- if (XTYPE (item1) == Lisp_Cons)
- {
- item2 = XCONS (item1)->car;
- if (XTYPE (item2) == Lisp_String)
- {
- Lisp_Object tem;
- tem = Fkeymapp (Fcdr (item1));
- if (XSTRING (item2)->data[0] == '@' && !NILP (tem))
- pending_maps = Fcons (Fcons (Fcdr (item1), item2),
- pending_maps);
- else
- {
- (*names)[*p_ptr][i] = (char *) XSTRING (item2)->data;
- /* The menu item "value" is the key bound here. */
- (*vector)[*p_ptr][i] = XCONS (item)->car;
- i++;
- }
- }
- }
- }
- else if (XTYPE (item) == Lisp_Vector)
- {
- /* Loop over the char values represented in the vector. */
- int len = XVECTOR (item)->size;
- int c;
- for (c = 0; c < len; c++)
- {
- Lisp_Object character;
- XFASTINT (character) = c;
- item1 = XVECTOR (item)->contents[c];
- if (XTYPE (item1) == Lisp_Cons)
- {
- item2 = XCONS (item1)->car;
- if (XTYPE (item2) == Lisp_String)
- {
- Lisp_Object tem;
- tem = Fkeymapp (Fcdr (item1));
- if (XSTRING (item2)->data[0] == '@' && !NILP (tem))
- pending_maps = Fcons (Fcons (Fcdr (item1), item2),
- pending_maps);
- else
- {
- (*names)[*p_ptr][i] = (char *) XSTRING (item2)->data;
- /* The menu item "value" is the key bound here. */
- (*vector)[*p_ptr][i] = character;
- i++;
- }
- }
- }
- }
- }
- }
- /* Record the number of items in the pane. */
- (*items)[*p_ptr] = i;
-
- /* If we just made an empty pane, get rid of it. */
- if (i == 0)
- {
- free ((*vector)[*p_ptr]);
- free ((*names)[*p_ptr]);
- }
- /* Otherwise, advance past it. */
- else
- (*p_ptr)++;
-
- /* Process now any submenus which want to be panes at this level. */
- while (!NILP (pending_maps))
- {
- Lisp_Object elt;
- elt = Fcar (pending_maps);
- single_keymap_panes (Fcar (elt), panes, vector, names, items,
- p_ptr, npanes_allocated_ptr,
- /* Add 1 to discard the @. */
- (char *) XSTRING (XCONS (elt)->cdr)->data + 1);
- pending_maps = Fcdr (pending_maps);
- }
-}
-\f
-/* Construct the vectors that describe a menu
- and store them in *VECTOR, *PANES, *NAMES and *ITEMS.
- Each of those four values is a vector indexed by pane number.
- Return the number of panes.
-
- MENU is the argument that was given to Fx_popup_menu. */
-
-int
-list_of_panes (vector, panes, names, items, menu)
- Lisp_Object ***vector; /* RETURN all menu objects */
- char ***panes; /* RETURN pane names */
- char ****names; /* RETURN all line names */
- int **items; /* RETURN number of items per pane */
- Lisp_Object menu;
-{
- Lisp_Object tail, item, item1;
- int i;
-
- if (XTYPE (menu) != Lisp_Cons) menu = wrong_type_argument (Qlistp, menu);
-
- i = XFASTINT (Flength (menu));
-
- *vector = (Lisp_Object **) xmalloc (i * sizeof (Lisp_Object *));
- *panes = (char **) xmalloc (i * sizeof (char *));
- *items = (int *) xmalloc (i * sizeof (int));
- *names = (char ***) xmalloc (i * sizeof (char **));
-
- for (i = 0, tail = menu; !NILP (tail); tail = Fcdr (tail), i++)
- {
- item = Fcdr (Fcar (tail));
- if (XTYPE (item) != Lisp_Cons) (void) wrong_type_argument (Qlistp, item);
-#ifdef XDEBUG
- fprintf (stderr, "list_of_panes check tail, i=%d\n", i);
-#endif
- item1 = Fcar (Fcar (tail));
- CHECK_STRING (item1, 1);
-#ifdef XDEBUG
- fprintf (stderr, "list_of_panes check pane, i=%d%s\n", i,
- XSTRING (item1)->data);
-#endif
- (*panes)[i] = (char *) XSTRING (item1)->data;
- (*items)[i] = list_of_items ((*vector)+i, (*names)+i, item);
- /* (*panes)[i] = (char *) xmalloc ((XSTRING (item1)->size)+1);
- bcopy (XSTRING (item1)->data, (*panes)[i], XSTRING (item1)->size + 1)
- ; */
- }
- return i;
-}
-\f
-/* Construct the lists of values and names for a single pane, from the
- alist PANE. Put them in *VECTOR and *NAMES.
- Return the number of items. */
-
-int
-list_of_items (vector, names, pane) /* get list from emacs and put to vector */
- Lisp_Object **vector; /* RETURN menu "objects" */
- char ***names; /* RETURN line names */
- Lisp_Object pane;
-{
- Lisp_Object tail, item, item1;
- int i;
-
- if (XTYPE (pane) != Lisp_Cons) pane = wrong_type_argument (Qlistp, pane);
-
- i = XFASTINT (Flength (pane, 1));
-
- *vector = (Lisp_Object *) xmalloc (i * sizeof (Lisp_Object));
- *names = (char **) xmalloc (i * sizeof (char *));
-
- for (i = 0, tail = pane; !NILP (tail); tail = Fcdr (tail), i++)
- {
- item = Fcar (tail);
- if (XTYPE (item) != Lisp_Cons) (void) wrong_type_argument (Qlistp, item);
-#ifdef XDEBUG
- fprintf (stderr, "list_of_items check tail, i=%d\n", i);
-#endif
- (*vector)[i] = Fcdr (item);
- item1 = Fcar (item);
- CHECK_STRING (item1, 1);
-#ifdef XDEBUG
- fprintf (stderr, "list_of_items check item, i=%d%s\n", i,
- XSTRING (item1)->data);
-#endif
- (*names)[i] = (char *) XSTRING (item1)->data;
- }
- return i;
-}
+/* X Communication module for terminals which understand the X protocol.
+ Copyright (C) 1986, 1988, 1993, 1994 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, 675 Mass Ave, Cambridge, MA 02139, USA. */
+
+/* X pop-up deck-of-cards menu facility for gnuemacs.
+ *
+ * Written by Jon Arnold and Roman Budzianowski
+ * Mods and rewrite by Robert Krawitz
+ *
+ */
+
+/* Modified by Fred Pierresteguy on December 93
+ to make the popup menus and menubar use the Xt. */
+
+/* Rewritten for clarity and GC protection by rms in Feb 94. */
+
+#include <stdio.h>
+
+/* On 4.3 this loses if it comes after xterm.h. */
+#include <signal.h>
+#include <config.h>
+#include "lisp.h"
+#include "termhooks.h"
+#include "frame.h"
+#include "window.h"
+#include "keyboard.h"
+#include "blockinput.h"
+
+/* This may include sys/types.h, and that somehow loses
+ if this is not done before the other system files. */
+#include "xterm.h"
+
+/* 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_X11
+#include "../oldXMenu/XMenu.h"
+#else
+#include <X/XMenu.h>
+#endif
+
+#ifdef USE_X_TOOLKIT
+#include <X11/Xlib.h>
+#include <X11/IntrinsicP.h>
+#include <X11/CoreP.h>
+#include <X11/StringDefs.h>
+#include <X11/Xaw/Paned.h>
+#include "../lwlib/lwlib.h"
+#include "../lwlib/xlwmenuP.h"
+#endif /* USE_X_TOOLKIT */
+
+#define min(x,y) (((x) < (y)) ? (x) : (y))
+#define max(x,y) (((x) > (y)) ? (x) : (y))
+
+#ifndef TRUE
+#define TRUE 1
+#define FALSE 0
+#endif /* no TRUE */
+
+#ifdef HAVE_X11
+extern Display *x_current_display;
+#else
+#define ButtonReleaseMask ButtonReleased
+#endif /* not HAVE_X11 */
+
+/* We need a unique id for each popup menu and dialog box. */
+static unsigned int popup_id_tick;
+
+extern Lisp_Object Qmenu_enable;
+extern Lisp_Object Qmenu_bar;
+
+#ifdef USE_X_TOOLKIT
+extern void process_expose_from_menu ();
+extern XtAppContext Xt_app_con;
+
+static int string_width ();
+static Lisp_Object xdialog_show ();
+#endif
+
+static Lisp_Object xmenu_show ();
+static void keymap_panes ();
+static void single_keymap_panes ();
+static void list_of_panes ();
+static void list_of_items ();
+\f
+/* 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 4 elements per item:
+ the item string, the enable flag, the item's value,
+ 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.
+
+ Using a Lisp vector to hold this information while we decode it
+ takes care of protecting all the data from GC. */
+
+#define MENU_ITEMS_PANE_NAME 1
+#define MENU_ITEMS_PANE_PREFIX 2
+#define MENU_ITEMS_PANE_LENGTH 3
+
+#define MENU_ITEMS_ITEM_NAME 0
+#define MENU_ITEMS_ITEM_ENABLE 1
+#define MENU_ITEMS_ITEM_VALUE 2
+#define MENU_ITEMS_ITEM_EQUIV_KEY 3
+#define MENU_ITEMS_ITEM_LENGTH 4
+
+static Lisp_Object menu_items;
+
+/* Number of slots currently allocated in menu_items. */
+static int menu_items_allocated;
+
+/* This is the index in menu_items of the first empty slot. */
+static int menu_items_used;
+
+/* The number of panes currently recorded in menu_items,
+ excluding those within submenus. */
+static int menu_items_n_panes;
+
+/* Current depth within submenus. */
+static int menu_items_submenu_depth;
+
+/* Initialize the menu_items structure if we haven't already done so.
+ Also mark it as currently empty. */
+
+static void
+init_menu_items ()
+{
+ if (NILP (menu_items))
+ {
+ menu_items_allocated = 60;
+ menu_items = Fmake_vector (make_number (menu_items_allocated), Qnil);
+ }
+
+ menu_items_used = 0;
+ menu_items_n_panes = 0;
+ menu_items_submenu_depth = 0;
+}
+
+/* Call at the end of generating the data in menu_items.
+ This fills in the number of items in the last pane. */
+
+static void
+finish_menu_items ()
+{
+}
+
+/* Call when finished using the data for the current menu
+ in menu_items. */
+
+static void
+discard_menu_items ()
+{
+ /* Free the structure if it is especially large.
+ Otherwise, hold on to it, to save time. */
+ if (menu_items_allocated > 200)
+ {
+ menu_items = Qnil;
+ menu_items_allocated = 0;
+ }
+}
+
+/* Make the menu_items vector twice as large. */
+
+static void
+grow_menu_items ()
+{
+ Lisp_Object old;
+ int old_size = menu_items_allocated;
+ old = menu_items;
+
+ menu_items_allocated *= 2;
+ menu_items = Fmake_vector (make_number (menu_items_allocated), Qnil);
+ bcopy (XVECTOR (old)->contents, XVECTOR (menu_items)->contents,
+ old_size * sizeof (Lisp_Object));
+}
+
+/* Begin a submenu. */
+
+static void
+push_submenu_start ()
+{
+ if (menu_items_used + 1 > menu_items_allocated)
+ grow_menu_items ();
+
+ XVECTOR (menu_items)->contents[menu_items_used++] = Qnil;
+ menu_items_submenu_depth++;
+}
+
+/* End a submenu. */
+
+static void
+push_submenu_end ()
+{
+ if (menu_items_used + 1 > menu_items_allocated)
+ grow_menu_items ();
+
+ XVECTOR (menu_items)->contents[menu_items_used++] = Qlambda;
+ menu_items_submenu_depth--;
+}
+
+/* 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. EQUIV is the textual description
+ of the keyboard equivalent for this item (or nil if none). */
+
+static void
+push_menu_item (name, enable, key, equiv)
+ Lisp_Object name, enable, key, equiv;
+{
+ if (menu_items_used + MENU_ITEMS_ITEM_LENGTH > menu_items_allocated)
+ grow_menu_items ();
+
+ XVECTOR (menu_items)->contents[menu_items_used++] = name;
+ XVECTOR (menu_items)->contents[menu_items_used++] = enable;
+ XVECTOR (menu_items)->contents[menu_items_used++] = key;
+ XVECTOR (menu_items)->contents[menu_items_used++] = equiv;
+}
+\f
+/* Figure out the current keyboard equivalent of a menu item ITEM1.
+ The item string for menu display should be ITEM_STRING.
+ Store the equivalent keyboard key sequence's
+ textual description into *DESCRIP_PTR.
+ Also cache them in the item itself.
+ Return the real definition to execute. */
+
+static Lisp_Object
+menu_item_equiv_key (item_string, item1, descrip_ptr)
+ Lisp_Object item_string;
+ Lisp_Object item1;
+ Lisp_Object *descrip_ptr;
+{
+ /* This is the real definition--the function to run. */
+ Lisp_Object def;
+ /* This is the sublist that records cached equiv key data
+ so we can save time. */
+ Lisp_Object cachelist;
+ /* These are the saved equivalent keyboard key sequence
+ and its key-description. */
+ Lisp_Object savedkey, descrip;
+ Lisp_Object def1;
+ int changed = 0;
+
+ /* If a help string follows the item string, skip it. */
+ if (CONSP (XCONS (item1)->cdr)
+ && STRINGP (XCONS (XCONS (item1)->cdr)->car))
+ item1 = XCONS (item1)->cdr;
+
+ def = Fcdr (item1);
+
+ /* Get out the saved equivalent-keyboard-key info. */
+ cachelist = savedkey = descrip = Qnil;
+ if (CONSP (def) && CONSP (XCONS (def)->car)
+ && (NILP (XCONS (XCONS (def)->car)->car)
+ || VECTORP (XCONS (XCONS (def)->car)->car)))
+ {
+ cachelist = XCONS (def)->car;
+ def = XCONS (def)->cdr;
+ savedkey = XCONS (cachelist)->car;
+ descrip = XCONS (cachelist)->cdr;
+ }
+
+ /* Is it still valid? */
+ def1 = Qnil;
+ if (!NILP (savedkey))
+ def1 = Fkey_binding (savedkey, Qnil);
+ /* If not, update it. */
+ if (! EQ (def1, def)
+ /* If something had no key binding before, don't recheck it--
+ doing that takes too much time and makes menus too slow. */
+ && !(!NILP (cachelist) && NILP (savedkey)))
+ {
+ changed = 1;
+ descrip = Qnil;
+ savedkey = Fwhere_is_internal (def, Qnil, Qt, Qnil);
+ if (VECTORP (savedkey)
+ && EQ (XVECTOR (savedkey)->contents[0], Qmenu_bar))
+ savedkey = Qnil;
+ if (!NILP (savedkey))
+ {
+ descrip = Fkey_description (savedkey);
+ descrip = concat2 (make_string (" (", 3), descrip);
+ descrip = concat2 (descrip, make_string (")", 1));
+ }
+ }
+
+ /* Cache the data we just got in a sublist of the menu binding. */
+ if (NILP (cachelist))
+ XCONS (item1)->cdr = Fcons (Fcons (savedkey, descrip), def);
+ else if (changed)
+ {
+ XCONS (cachelist)->car = savedkey;
+ XCONS (cachelist)->cdr = descrip;
+ }
+
+ *descrip_ptr = descrip;
+ return def;
+}
+
+/* This is used as the handler when calling internal_condition_case_1. */
+
+static Lisp_Object
+menu_item_enabled_p_1 (arg)
+ Lisp_Object arg;
+{
+ return Qnil;
+}
+
+/* Return non-nil if the command DEF is enabled when used as a menu item.
+ This is based on looking for a menu-enable property.
+ If NOTREAL is set, don't bother really computing this. */
+
+static Lisp_Object
+menu_item_enabled_p (def, notreal)
+ Lisp_Object def;
+{
+ Lisp_Object enabled, tem;
+
+ enabled = Qt;
+ if (notreal)
+ return enabled;
+ if (XTYPE (def) == Lisp_Symbol)
+ {
+ /* No property, or nil, means enable.
+ Otherwise, enable if value is not nil. */
+ tem = Fget (def, Qmenu_enable);
+ if (!NILP (tem))
+ /* (condition-case nil (eval tem)
+ (error nil)) */
+ enabled = internal_condition_case_1 (Feval, tem, Qerror,
+ menu_item_enabled_p_1);
+ }
+ return enabled;
+}
+\f
+/* Look through KEYMAPS, a vector of keymaps that is NMAPS long,
+ and generate menu panes for them in menu_items.
+ If NOTREAL is nonzero,
+ don't bother really computing whether an item is enabled. */
+
+static void
+keymap_panes (keymaps, nmaps, notreal)
+ Lisp_Object *keymaps;
+ int nmaps;
+ int notreal;
+{
+ int mapno;
+
+ init_menu_items ();
+
+ /* Loop over the given keymaps, making a pane for each map.
+ But don't make a pane that is empty--ignore that map instead.
+ P is the number of panes we have made so far. */
+ for (mapno = 0; mapno < nmaps; mapno++)
+ single_keymap_panes (keymaps[mapno], Qnil, Qnil, notreal);
+
+ finish_menu_items ();
+}
+
+/* This is a recursive subroutine of keymap_panes.
+ It handles one keymap, KEYMAP.
+ The other arguments are passed along
+ or point to local variables of the previous function.
+ If NOTREAL is nonzero,
+ don't bother really computing whether an item is enabled. */
+
+static void
+single_keymap_panes (keymap, pane_name, prefix, notreal)
+ Lisp_Object keymap;
+ Lisp_Object pane_name;
+ Lisp_Object prefix;
+ int notreal;
+{
+ Lisp_Object pending_maps;
+ Lisp_Object tail, item, item1, item_string, table;
+ struct gcpro gcpro1, gcpro2, gcpro3, gcpro4;
+
+ pending_maps = Qnil;
+
+ push_menu_pane (pane_name, prefix);
+
+ for (tail = keymap; XTYPE (tail) == Lisp_Cons; tail = XCONS (tail)->cdr)
+ {
+ /* Look at each key binding, and if it has a menu string,
+ make a menu item from it. */
+ item = XCONS (tail)->car;
+ if (XTYPE (item) == Lisp_Cons)
+ {
+ item1 = XCONS (item)->cdr;
+ if (XTYPE (item1) == Lisp_Cons)
+ {
+ item_string = XCONS (item1)->car;
+ if (XTYPE (item_string) == Lisp_String)
+ {
+ /* This is the real definition--the function to run. */
+ Lisp_Object def;
+ /* These are the saved equivalent keyboard key sequence
+ and its key-description. */
+ Lisp_Object descrip;
+ Lisp_Object tem, enabled;
+
+ def = menu_item_equiv_key (item_string, item1, &descrip);
+
+ /* GCPRO because we will call eval.
+ Protecting KEYMAP preserves everything we use;
+ aside from that, must protect whatever might be
+ a string. Since there's no GCPRO5, we refetch
+ item_string instead of protecting it. */
+ GCPRO4 (keymap, pending_maps, def, descrip);
+ enabled = menu_item_enabled_p (def, notreal);
+
+ UNGCPRO;
+
+ item_string = XCONS (item1)->car;
+
+ tem = Fkeymapp (def);
+ if (XSTRING (item_string)->data[0] == '@' && !NILP (tem))
+ pending_maps = Fcons (Fcons (def, Fcons (item_string, XCONS (item)->car)),
+ pending_maps);
+ else
+ {
+ Lisp_Object submap;
+ submap = get_keymap_1 (def, 0, 1);
+#ifndef USE_X_TOOLKIT
+ /* Indicate visually that this is a submenu. */
+ if (!NILP (submap))
+ item_string = concat2 (item_string,
+ build_string (" >"));
+#endif
+ push_menu_item (item_string, enabled, XCONS (item)->car,
+ descrip);
+#ifdef USE_X_TOOLKIT
+ /* Display a submenu using the toolkit. */
+ if (! NILP (submap))
+ {
+ push_submenu_start ();
+ single_keymap_panes (submap, Qnil,
+ XCONS (item)->car, notreal);
+ push_submenu_end ();
+ }
+#endif
+ }
+ }
+ }
+ }
+ else if (XTYPE (item) == Lisp_Vector)
+ {
+ /* Loop over the char values represented in the vector. */
+ int len = XVECTOR (item)->size;
+ int c;
+ for (c = 0; c < len; c++)
+ {
+ Lisp_Object character;
+ XFASTINT (character) = c;
+ item1 = XVECTOR (item)->contents[c];
+ if (XTYPE (item1) == Lisp_Cons)
+ {
+ item_string = XCONS (item1)->car;
+ if (XTYPE (item_string) == Lisp_String)
+ {
+ Lisp_Object def;
+
+ /* These are the saved equivalent keyboard key sequence
+ and its key-description. */
+ Lisp_Object descrip;
+ Lisp_Object tem, enabled;
+
+ def = menu_item_equiv_key (item_string, item1, &descrip);
+
+ /* GCPRO because we will call eval.
+ Protecting KEYMAP preserves everything we use;
+ aside from that, must protect whatever might be
+ a string. Since there's no GCPRO5, we refetch
+ item_string instead of protecting it. */
+ GCPRO4 (keymap, pending_maps, def, descrip);
+ enabled = menu_item_enabled_p (def, notreal);
+ UNGCPRO;
+
+ item_string = XCONS (item1)->car;
+
+ tem = Fkeymapp (def);
+ if (XSTRING (item_string)->data[0] == '@' && !NILP (tem))
+ pending_maps = Fcons (Fcons (def, Fcons (item_string, character)),
+ pending_maps);
+ else
+ {
+ Lisp_Object submap;
+ submap = get_keymap_1 (def, 0, 1);
+#ifndef USE_X_TOOLKIT
+ if (!NILP (submap))
+ item_string = concat2 (item_string,
+ build_string (" >"));
+#endif
+ push_menu_item (item_string, enabled, character,
+ descrip);
+#ifdef USE_X_TOOLKIT
+ if (! NILP (submap))
+ {
+ push_submenu_start ();
+ single_keymap_panes (submap, Qnil,
+ character, notreal);
+ push_submenu_end ();
+ }
+#endif
+ }
+ }
+ }
+ }
+ }
+ }
+
+ /* Process now any submenus which want to be panes at this level. */
+ while (!NILP (pending_maps))
+ {
+ Lisp_Object elt, eltcdr, string;
+ elt = Fcar (pending_maps);
+ eltcdr = XCONS (elt)->cdr;
+ string = XCONS (eltcdr)->car;
+ /* We no longer discard the @ from the beginning of the string here.
+ Instead, we do this in xmenu_show. */
+ single_keymap_panes (Fcar (elt), string,
+ XCONS (eltcdr)->cdr, notreal);
+ pending_maps = Fcdr (pending_maps);
+ }
+}
+\f
+/* Push all the panes and items of a menu decsribed by the
+ alist-of-alists MENU.
+ This handles old-fashioned calls to x-popup-menu. */
+
+static void
+list_of_panes (menu)
+ Lisp_Object menu;
+{
+ Lisp_Object tail;
+
+ init_menu_items ();
+
+ for (tail = menu; !NILP (tail); tail = Fcdr (tail))
+ {
+ Lisp_Object elt, pane_name, pane_data;
+ elt = Fcar (tail);
+ pane_name = Fcar (elt);
+ CHECK_STRING (pane_name, 0);
+ push_menu_pane (pane_name, Qnil);
+ pane_data = Fcdr (elt);
+ CHECK_CONS (pane_data, 0);
+ list_of_items (pane_data);
+ }
+
+ finish_menu_items ();
+}
+
+/* Push the items in a single pane defined by the alist PANE. */
+
+static void
+list_of_items (pane)
+ Lisp_Object pane;
+{
+ Lisp_Object tail, item, item1;
+
+ for (tail = pane; !NILP (tail); tail = Fcdr (tail))
+ {
+ item = Fcar (tail);
+ if (STRINGP (item))
+ push_menu_item (item, Qnil, Qnil, Qnil);
+ else
+ {
+ CHECK_CONS (item, 0);
+ item1 = Fcar (item);
+ CHECK_STRING (item1, 1);
+ push_menu_item (item1, Qt, Fcdr (item), Qnil);
+ }
+ }
+}
+\f
+DEFUN ("x-popup-menu", Fx_popup_menu, Sx_popup_menu, 2, 2, 0,
+ "Pop up a deck-of-cards menu and return user's selection.\n\
+POSITION is a position specification. This is either a mouse button event\n\
+or a list ((XOFFSET YOFFSET) WINDOW)\n\
+where XOFFSET and YOFFSET are positions in characters from the top left\n\
+corner of WINDOW's frame. (WINDOW may be a frame object instead of a window.)\n\
+This controls the position of the center of the first line\n\
+in the first pane of the menu, not the top left of the menu as a whole.\n\
+If POSITION is t, it means to use the current mouse position.\n\
+\n\
+MENU is a specifier for a menu. For the simplest case, MENU is a keymap.\n\
+The menu items come from key bindings that have a menu string as well as\n\
+a definition; actually, the \"definition\" in such a key binding looks like\n\
+\(STRING . REAL-DEFINITION). To give the menu a title, put a string into\n\
+the keymap as a top-level element.\n\n\
+You can also use a list of keymaps as MENU.\n\
+ Then each keymap makes a separate pane.\n\
+When MENU is a keymap or a list of keymaps, the return value\n\
+is a list of events.\n\n\
+Alternatively, you can specify a menu of multiple panes\n\
+ with a list of the form (TITLE PANE1 PANE2...),\n\
+where each pane is a list of form (TITLE ITEM1 ITEM2...).\n\
+Each ITEM is normally a cons cell (STRING . VALUE);\n\
+but a string can appear as an item--that makes a nonselectable line\n\
+in the menu.\n\
+With this form of menu, the return value is VALUE from the chosen item.\n\
+\n\
+If POSITION is nil, don't display the menu at all, just precalculate the\n\
+cached information about equivalent key sequences.")
+ (position, menu)
+ Lisp_Object position, menu;
+{
+ int number_of_panes, panes;
+ Lisp_Object keymap, tem;
+ int xpos, ypos;
+ Lisp_Object title;
+ char *error_name;
+ Lisp_Object selection;
+ int i, j;
+ FRAME_PTR f;
+ Lisp_Object x, y, window;
+ int keymaps = 0;
+ int menubarp = 0;
+ struct gcpro gcpro1;
+
+ if (! NILP (position))
+ {
+ check_x ();
+
+ /* Decode the first argument: find the window and the coordinates. */
+ if (EQ (position, Qt))
+ {
+ /* Use the mouse's current position. */
+ FRAME_PTR new_f = 0;
+ Lisp_Object bar_window;
+ int part;
+ unsigned long time;
+
+ if (new_f != 0)
+ XSET (window, Lisp_Frame, new_f);
+ else
+ {
+ window = selected_window;
+ XFASTINT (x) = 0;
+ XFASTINT (y) = 0;
+ }
+ }
+ else
+ {
+ tem = Fcar (position);
+ if (XTYPE (tem) == Lisp_Cons)
+ {
+ window = Fcar (Fcdr (position));
+ x = Fcar (tem);
+ y = Fcar (Fcdr (tem));
+ }
+ else
+ {
+ 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);
+
+ /* Determine whether this menu is handling a menu bar click. */
+ tem = Fcar (Fcdr (Fcar (Fcdr (position))));
+ if (XTYPE (Fcar (position)) != Lisp_Cons
+ && CONSP (tem)
+ && EQ (Fcar (tem), Qmenu_bar))
+ menubarp = 1;
+ }
+ }
+
+ CHECK_NUMBER (x, 0);
+ CHECK_NUMBER (y, 0);
+
+ /* Decode where to put the menu. */
+
+ if (XTYPE (window) == Lisp_Frame)
+ {
+ f = XFRAME (window);
+
+ xpos = 0;
+ ypos = 0;
+ }
+ else if (XTYPE (window) == Lisp_Window)
+ {
+ CHECK_LIVE_WINDOW (window, 0);
+ f = XFRAME (WINDOW_FRAME (XWINDOW (window)));
+
+ xpos = (FONT_WIDTH (f->display.x->font) * XWINDOW (window)->left);
+ ypos = (FONT_HEIGHT (f->display.x->font) * XWINDOW (window)->top);
+ }
+ else
+ /* ??? Not really clean; should be CHECK_WINDOW_OR_FRAME,
+ but I don't want to make one now. */
+ CHECK_WINDOW (window, 0);
+
+ xpos += XINT (x);
+ ypos += XINT (y);
+ }
+
+ title = Qnil;
+ GCPRO1 (title);
+
+ /* Decode the menu items from what was specified. */
+
+ keymap = Fkeymapp (menu);
+ tem = Qnil;
+ if (XTYPE (menu) == Lisp_Cons)
+ tem = Fkeymapp (Fcar (menu));
+ if (!NILP (keymap))
+ {
+ /* We were given a keymap. Extract menu info from the keymap. */
+ Lisp_Object prompt;
+ keymap = get_keymap (menu);
+
+ /* Extract the detailed info to make one pane. */
+ keymap_panes (&menu, 1, NILP (position));
+
+ /* Search for a string appearing directly as an element of the keymap.
+ That string is the title of the menu. */
+ prompt = map_prompt (keymap);
+
+ /* Make that be the pane title of the first pane. */
+ if (!NILP (prompt) && menu_items_n_panes >= 0)
+ XVECTOR (menu_items)->contents[MENU_ITEMS_PANE_NAME] = prompt;
+
+ keymaps = 1;
+ }
+ else if (!NILP (tem))
+ {
+ /* We were given a list of keymaps. */
+ int nmaps = XFASTINT (Flength (menu));
+ Lisp_Object *maps
+ = (Lisp_Object *) alloca (nmaps * sizeof (Lisp_Object));
+ int i;
+
+ title = Qnil;
+
+ /* The first keymap that has a prompt string
+ supplies the menu title. */
+ for (tem = menu, i = 0; XTYPE (tem) == Lisp_Cons; tem = Fcdr (tem))
+ {
+ Lisp_Object prompt;
+
+ maps[i++] = keymap = get_keymap (Fcar (tem));
+
+ prompt = map_prompt (keymap);
+ if (NILP (title) && !NILP (prompt))
+ title = prompt;
+ }
+
+ /* Extract the detailed info to make one pane. */
+ keymap_panes (maps, nmaps, NILP (position));
+
+ /* Make the title be the pane title of the first pane. */
+ if (!NILP (title) && menu_items_n_panes >= 0)
+ XVECTOR (menu_items)->contents[MENU_ITEMS_PANE_NAME] = title;
+
+ keymaps = 1;
+ }
+ else
+ {
+ /* We were given an old-fashioned menu. */
+ title = Fcar (menu);
+ CHECK_STRING (title, 1);
+
+ list_of_panes (Fcdr (menu));
+
+ keymaps = 0;
+ }
+
+ if (NILP (position))
+ {
+ discard_menu_items ();
+ UNGCPRO;
+ return Qnil;
+ }
+
+ /* Display them in a menu. */
+ BLOCK_INPUT;
+
+ selection = xmenu_show (f, xpos, ypos, menubarp,
+ keymaps, title, &error_name);
+ UNBLOCK_INPUT;
+
+ discard_menu_items ();
+
+ UNGCPRO;
+
+ if (error_name) error (error_name);
+ return selection;
+}
+
+DEFUN ("x-popup-dialog", Fx_popup_dialog, Sx_popup_dialog, 2, 2, 0,
+ "Pop up a dialog box and return user's selection.\n\
+POSITION specifies which frame to use.\n\
+This is normally a mouse button event or a window or frame.\n\
+If POSITION is t, it means to use the frame the mouse is on.\n\
+The dialog box appears in the middle of the specified frame.\n\
+\n\
+CONTENTS specifies the alternatives to display in the dialog box.\n\
+It is a list of the form (TITLE ITEM1 ITEM2...).\n\
+Each ITEM is a cons cell (STRING . VALUE).\n\
+The return value is VALUE from the chosen item.")
+ (position, contents)
+ Lisp_Object position, contents;
+{
+ FRAME_PTR f;
+ Lisp_Object window;
+
+ check_x ();
+
+ /* Decode the first argument: find the window or frame to use. */
+ if (EQ (position, Qt))
+ {
+#if 0 /* Using the frame the mouse is on may not be right. */
+ /* Use the mouse's current position. */
+ FRAME_PTR new_f = 0;
+ Lisp_Object bar_window;
+ int part;
+ unsigned long time;
+ Lisp_Object x, y;
+
+ (*mouse_position_hook) (&new_f, &bar_window, &part, &x, &y, &time);
+
+ if (new_f != 0)
+ XSET (window, Lisp_Frame, new_f);
+ else
+ window = selected_window;
+#endif
+ /* Decode the first argument: find the window and the coordinates. */
+ if (EQ (position, Qt))
+ {
+ window = selected_window;
+ XFASTINT (x) = 0;
+ XFASTINT (y) = 0;
+ }
+ }
+ else if (CONSP (position))
+ {
+ Lisp_Object tem;
+ tem = Fcar (position);
+ if (XTYPE (tem) == Lisp_Cons)
+ 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;
+
+ /* Decode where to put the menu. */
+
+ if (XTYPE (window) == Lisp_Frame)
+ f = XFRAME (window);
+ else if (XTYPE (window) == Lisp_Window)
+ {
+ CHECK_LIVE_WINDOW (window, 0);
+ f = XFRAME (WINDOW_FRAME (XWINDOW (window)));
+ }
+ else
+ /* ??? Not really clean; should be CHECK_WINDOW_OR_FRAME,
+ but I don't want to make one now. */
+ CHECK_WINDOW (window, 0);
+
+#ifndef USE_X_TOOLKIT
+ /* Display a menu with these alternatives
+ in the middle of frame F. */
+ {
+ Lisp_Object x, y, frame, newpos;
+ XSET (frame, Lisp_Frame, f);
+ XSET (x, Lisp_Int, x_pixel_width (f) / 2);
+ XSET (y, Lisp_Int, x_pixel_height (f) / 2);
+ newpos = Fcons (Fcons (x, Fcons (y, Qnil)), Fcons (frame, Qnil));
+
+ return Fx_popup_menu (newpos,
+ Fcons (Fcar (contents), Fcons (contents, Qnil)));
+ }
+#else
+ {
+ Lisp_Object title;
+ char *error_name;
+ Lisp_Object selection;
+
+ /* Decode the dialog items from what was specified. */
+ title = Fcar (contents);
+ CHECK_STRING (title, 1);
+
+ list_of_panes (Fcons (contents, Qnil));
+
+ /* Display them in a dialog box. */
+ BLOCK_INPUT;
+ selection = xdialog_show (f, 0, 0, title, &error_name);
+ UNBLOCK_INPUT;
+
+ discard_menu_items ();
+
+ if (error_name) error (error_name);
+ return selection;
+ }
+#endif
+}
+\f
+#ifdef USE_X_TOOLKIT
+
+static void
+dispatch_dummy_expose (w, x, y)
+ Widget w;
+ int x;
+ int y;
+{
+ XExposeEvent dummy;
+
+ dummy.type = Expose;
+ dummy.window = XtWindow (w);
+ dummy.count = 0;
+ dummy.serial = 0;
+ dummy.send_event = 0;
+ dummy.display = XtDisplay (w);
+ dummy.x = x;
+ dummy.y = y;
+
+ XtDispatchEvent (&dummy);
+}
+
+static int
+string_width (mw, s)
+ XlwMenuWidget mw;
+ char* s;
+{
+ XCharStruct xcs;
+ int drop;
+
+ XTextExtents (mw->menu.font, s, strlen (s), &drop, &drop, &drop, &xcs);
+ return xcs.width;
+}
+
+static int
+event_is_in_menu_item (mw, event, name, string_w)
+ XlwMenuWidget mw;
+ struct input_event *event;
+ char *name;
+ int *string_w;
+{
+ *string_w += (string_width (mw, name)
+ + 2 * (mw->menu.horizontal_spacing
+ + mw->menu.shadow_thickness));
+ return XINT (event->x) < *string_w;
+}
+
+
+/* Return the menu bar key which corresponds to event EVENT in frame F. */
+
+Lisp_Object
+map_event_to_object (event, f)
+ struct input_event *event;
+ FRAME_PTR f;
+{
+ int i,j, string_w;
+ window_state* ws;
+ XlwMenuWidget mw = (XlwMenuWidget) f->display.x->menubar_widget;
+ widget_value *val;
+
+
+ string_w = 0;
+ /* Find the window */
+ for (val = mw->menu.old_stack [0]->contents; val; val = val->next)
+ {
+ ws = &mw->menu.windows [0];
+ if (ws && event_is_in_menu_item (mw, event, val->name, &string_w))
+ {
+ Lisp_Object items;
+ int i;
+
+ items = FRAME_MENU_BAR_ITEMS (f);
+
+ for (i = 0; i < XVECTOR (items)->size; i += 3)
+ {
+ Lisp_Object pos, string, item;
+ item = XVECTOR (items)->contents[i];
+ string = XVECTOR (items)->contents[i + 1];
+ pos = XVECTOR (items)->contents[i + 2];
+ if (NILP (string))
+ break;
+
+ if (!strcmp (val->name, XSTRING (string)->data))
+ return item;
+ }
+ }
+ }
+ return Qnil;
+}
+
+static Lisp_Object *menu_item_selection;
+
+static void
+popup_selection_callback (widget, id, client_data)
+ Widget widget;
+ LWLIB_ID id;
+ XtPointer client_data;
+{
+ menu_item_selection = (Lisp_Object *) client_data;
+}
+
+static void
+popup_down_callback (widget, id, client_data)
+ Widget widget;
+ LWLIB_ID id;
+ XtPointer client_data;
+{
+ BLOCK_INPUT;
+ lw_destroy_all_widgets (id);
+ UNBLOCK_INPUT;
+}
+
+static void
+dialog_selection_callback (widget, id, client_data)
+ Widget widget;
+ LWLIB_ID id;
+ XtPointer client_data;
+{
+ if ((int)client_data != -1)
+ menu_item_selection = (Lisp_Object *) client_data;
+ BLOCK_INPUT;
+ lw_destroy_all_widgets (id);
+ UNBLOCK_INPUT;
+}
+
+/* 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;
+}
+
+extern void EmacsFrameSetCharSize ();
+
+static void
+update_frame_menubar (f)
+ FRAME_PTR f;
+{
+ struct x_display *x = f->display.x;
+ int columns, rows;
+ int menubar_changed;
+
+ menubar_changed = (x->menubar_widget
+ && !XtIsManaged (x->menubar_widget));
+
+ if (! (menubar_changed))
+ return;
+
+ BLOCK_INPUT;
+ /* Save the size of the frame because the pane widget doesn't accept to
+ resize itself. So force it. */
+ columns = f->width;
+ rows = f->height;
+
+
+ XawPanedSetRefigureMode (x->column_widget, 0);
+
+ /* the order in which children are managed is the top to
+ bottom order in which they are displayed in the paned window.
+ First, remove the text-area widget.
+ */
+ XtUnmanageChild (x->edit_widget);
+
+ /* remove the menubar that is there now, and put up the menubar that
+ should be there.
+ */
+ if (menubar_changed)
+ {
+ XtManageChild (x->menubar_widget);
+ XtMapWidget (x->menubar_widget);
+ XtVaSetValues (x->menubar_widget, XtNmappedWhenManaged, 1, 0);
+ }
+
+
+ /* Re-manage the text-area widget */
+ XtManageChild (x->edit_widget);
+
+ /* and now thrash the sizes */
+ XawPanedSetRefigureMode (x->column_widget, 1);
+
+ /* Force the pane widget to resize itself with the right values. */
+ EmacsFrameSetCharSize (x->edit_widget, columns, rows);
+
+ UNBLOCK_INPUT;
+}
+
+void
+set_frame_menubar (f, first_time)
+ FRAME_PTR f;
+ int first_time;
+{
+ Widget menubar_widget = f->display.x->menubar_widget;
+ int id = (int) f;
+ Lisp_Object tail, items;
+ widget_value *wv, *save_wv, *first_wv, *prev_wv = 0;
+ int i;
+
+ BLOCK_INPUT;
+
+ wv = malloc_widget_value ();
+ wv->name = "menubar";
+ wv->value = 0;
+ wv->enabled = 1;
+ save_wv = first_wv = wv;
+
+ if (NILP (items = FRAME_MENU_BAR_ITEMS (f)))
+ items = FRAME_MENU_BAR_ITEMS (f) = menu_bar_items (FRAME_MENU_BAR_ITEMS (f));
+
+ for (i = 0; i < XVECTOR (items)->size; i += 3)
+ {
+ Lisp_Object string;
+
+ string = XVECTOR (items)->contents[i + 1];
+ if (NILP (string))
+ break;
+
+ wv = malloc_widget_value ();
+ if (prev_wv)
+ prev_wv->next = wv;
+ else
+ save_wv->contents = wv;
+ wv->name = XSTRING (string)->data;
+ wv->value = 0;
+ wv->enabled = 1;
+ prev_wv = wv;
+ }
+
+ if (menubar_widget)
+ lw_modify_all_widgets (id, first_wv, False);
+ else
+ {
+ menubar_widget = lw_create_widget ("menubar", "menubar",
+ id, first_wv,
+ f->display.x->column_widget,
+ 0, 0,
+ 0, 0);
+ f->display.x->menubar_widget = menubar_widget;
+ XtVaSetValues (menubar_widget,
+ XtNshowGrip, 0,
+ XtNresizeToPreferred, 1,
+ XtNallowResize, 1,
+ 0);
+ }
+
+ free_menubar_widget_value_tree (first_wv);
+
+ /* Don't update the menubar the first time it is created via x_window. */
+ if (!first_time)
+ update_frame_menubar (f);
+
+ UNBLOCK_INPUT;
+}
+
+void
+free_frame_menubar (f)
+ FRAME_PTR f;
+{
+ Widget menubar_widget;
+ int id;
+
+ menubar_widget = f->display.x->menubar_widget;
+ id = (int) f;
+
+ if (menubar_widget)
+ {
+ BLOCK_INPUT;
+ lw_destroy_all_widgets (id);
+ UNBLOCK_INPUT;
+ }
+}
+/* Called from Fx_create_frame to create the inital 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;
+{
+ set_frame_menubar (f, 1);
+}
+\f
+/* Nonzero if position X, Y relative to inside of frame F
+ is in some other menu bar item. */
+
+static int this_menu_bar_item_beg;
+static int this_menu_bar_item_end;
+
+static int
+other_menu_bar_item_p (f, x, y)
+ FRAME_PTR f;
+ int x, y;
+{
+ return (y >= 0
+ && y < f->display.x->menubar_widget->core.height
+ && x >= 0
+ && x < f->display.x->menubar_widget->core.width
+ && (x >= this_menu_bar_item_end
+ || x < this_menu_bar_item_beg));
+}
+
+/* Unread a button-press event in the menu bar of frame F
+ at x position XPOS relative to the inside of the frame. */
+
+static void
+unread_menu_bar_button (f, xpos)
+ FRAME_PTR f;
+ int xpos;
+{
+ XEvent event;
+
+ event.type = ButtonPress;
+ event.xbutton.display = x_current_display;
+ event.xbutton.serial = 0;
+ event.xbutton.send_event = 0;
+ event.xbutton.time = CurrentTime;
+ event.xbutton.button = Button1;
+ event.xbutton.window = XtWindow (f->display.x->menubar_widget);
+ event.xbutton.x = xpos;
+ XPutBackEvent (XDISPLAY &event);
+}
+
+/* If the mouse has moved to another menu bar item,
+ return 1 and unread a button press event for that item.
+ Otherwise return 0. */
+
+static int
+check_mouse_other_menu_bar (f)
+ FRAME_PTR f;
+{
+ FRAME_PTR new_f;
+ Lisp_Object bar_window;
+ int part;
+ Lisp_Object x, y;
+ unsigned long time;
+
+ (*mouse_position_hook) (&new_f, &bar_window, &part, &x, &y, &time);
+
+ if (f == new_f && other_menu_bar_item_p (f, x, y))
+ {
+ unread_menu_bar_button (f, x);
+ return 1;
+ }
+
+ return 0;
+}
+#endif /* USE_X_TOOLKIT */
+\f
+/* 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.
+ MENUBARP is 1 if the click that asked for this menu came from the menu bar.
+ 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.) */
+
+#ifdef USE_X_TOOLKIT
+
+extern unsigned int x_mouse_grabbed;
+extern Lisp_Object Vmouse_depressed;
+
+static Lisp_Object
+xmenu_show (f, x, y, menubarp, keymaps, title, error)
+ FRAME_PTR f;
+ int x;
+ int y;
+ int menubarp;
+ int keymaps;
+ Lisp_Object title;
+ char **error;
+{
+ int i;
+ int menu_id;
+ Widget menu;
+ XlwMenuWidget menubar = (XlwMenuWidget) f->display.x->menubar_widget;
+
+ /* This is the menu bar item (if any) that led to this menu. */
+ widget_value *menubar_item = 0;
+
+ widget_value *wv, *save_wv = 0, *first_wv = 0, *prev_wv = 0;
+ widget_value **submenu_stack
+ = (widget_value **) alloca (menu_items_used * sizeof (widget_value *));
+ Lisp_Object *subprefix_stack
+ = (Lisp_Object *) alloca (menu_items_used * sizeof (Lisp_Object));
+ int submenu_depth = 0;
+
+ /* Define a queue to save up for later unreading
+ all X events that don't pertain to the menu. */
+ struct event_queue
+ {
+ XEvent event;
+ struct event_queue *next;
+ };
+
+ struct event_queue *queue = NULL;
+ struct event_queue *queue_tmp;
+
+ *error = NULL;
+
+ this_menu_bar_item_beg = -1;
+ this_menu_bar_item_end = -1;
+
+ /* Figure out which menu bar item, if any, this menu is for. */
+ if (menubarp)
+ {
+ int xbeg;
+ int xend = 0;
+
+ for (menubar_item = menubar->menu.old_stack[0]->contents;
+ menubar_item;
+ menubar_item = menubar_item->next)
+ {
+ xbeg = xend;
+ xend += (string_width (menubar, menubar_item->name)
+ + 2 * (menubar->menu.horizontal_spacing
+ + menubar->menu.shadow_thickness));
+ if (x < xend)
+ {
+ x = xbeg + 4;
+ y = 0;
+ /* Arrange to show a different menu if we move in the menu bar
+ to a different item. */
+ this_menu_bar_item_beg = xbeg;
+ this_menu_bar_item_end = xend;
+ break;
+ }
+ }
+ }
+ if (menubar_item == 0)
+ menubarp = 0;
+
+ /* Offset the coordinates to root-relative. */
+ x += (f->display.x->widget->core.x
+ + f->display.x->widget->core.border_width);
+ y += (f->display.x->widget->core.y
+ + f->display.x->widget->core.border_width
+ + f->display.x->menubar_widget->core.height);
+
+ /* Create a tree of widget_value objects
+ representing the panes and their items. */
+ wv = malloc_widget_value ();
+ wv->name = "menu";
+ wv->value = 0;
+ wv->enabled = 1;
+ first_wv = wv;
+
+ /* 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;
+ 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;
+ else if (EQ (XVECTOR (menu_items)->contents[i], Qt))
+ {
+ /* Create a new pane. */
+ Lisp_Object pane_name, prefix;
+ char *pane_string;
+ pane_name = XVECTOR (menu_items)->contents[i + MENU_ITEMS_PANE_NAME];
+ prefix = XVECTOR (menu_items)->contents[i + MENU_ITEMS_PANE_PREFIX];
+ pane_string = (NILP (pane_name)
+ ? "" : (char *) XSTRING (pane_name)->data);
+ /* If there is just one top-level pane, put all its items directly
+ under the top-level menu. */
+ if (menu_items_n_panes == 1)
+ pane_string = "";
+
+ /* If the pane has a meaningful name,
+ make the pane a top-level menu item
+ with its items as a submenu beneath it. */
+ if (strcmp (pane_string, ""))
+ {
+ wv = malloc_widget_value ();
+ if (save_wv)
+ save_wv->next = wv;
+ else
+ first_wv->contents = wv;
+ wv->name = pane_string;
+ if (keymaps && !NILP (prefix))
+ wv->name++;
+ wv->value = 0;
+ wv->enabled = 1;
+ }
+ save_wv = wv;
+ prev_wv = 0;
+ i += MENU_ITEMS_PANE_LENGTH;
+ }
+ else
+ {
+ /* 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];
+
+ wv = malloc_widget_value ();
+ if (prev_wv)
+ prev_wv->next = wv;
+ else
+ save_wv->contents = wv;
+ wv->name = XSTRING (item_name)->data;
+ if (!NILP (descrip))
+ wv->key = XSTRING (descrip)->data;
+ wv->value = 0;
+ wv->call_data = (void *) &XVECTOR (menu_items)->contents[i];
+ wv->enabled = !NILP (enable);
+ prev_wv = wv;
+
+ i += MENU_ITEMS_ITEM_LENGTH;
+ }
+ }
+
+ /* Actually create the menu. */
+ menu_id = ++popup_id_tick;
+ menu = lw_create_widget ("popup", first_wv->name, menu_id, first_wv,
+ f->display.x->widget, 1, 0,
+ popup_selection_callback, popup_down_callback);
+ /* Free the widget_value objects we used to specify the contents. */
+ free_menubar_widget_value_tree (first_wv);
+
+ /* No selection has been chosen yet. */
+ menu_item_selection = 0;
+
+ /* If the mouse moves out of the menu before we show the menu,
+ don't show it at all. */
+ if (check_mouse_other_menu_bar (f))
+ {
+ lw_destroy_all_widgets (menu_id);
+ return Qnil;
+ }
+
+
+ /* Highlight the menu bar item (if any) that led to this menu. */
+ if (menubarp)
+ {
+ menubar_item->call_data = (XtPointer) 1;
+ dispatch_dummy_expose (f->display.x->menubar_widget, x, y);
+ }
+
+ /* Display the menu. */
+ {
+ XButtonPressedEvent dummy;
+ XlwMenuWidget mw;
+
+ mw = (XlwMenuWidget) ((CompositeWidget)menu)->composite.children[0];
+
+ dummy.type = ButtonPress;
+ dummy.serial = 0;
+ dummy.send_event = 0;
+ dummy.display = XtDisplay (menu);
+ dummy.window = XtWindow (XtParent (menu));
+ dummy.time = CurrentTime;
+ dummy.button = 0;
+ dummy.x_root = x;
+ dummy.y_root = y;
+
+ /* We activate directly the lucid implementation. */
+ pop_up_menu (mw, &dummy);
+ }
+
+ /* No need to check a second time since this is done in the XEvent loop.
+ This slows done the execution. */
+#if 0
+ /* Check again whether the mouse has moved to another menu bar item. */
+ if (check_mouse_other_menu_bar (f))
+ {
+ /* The mouse moved into a different menu bar item.
+ We should bring up that item's menu instead.
+ First pop down this menu. */
+ XtUngrabPointer ((Widget)
+ ((XlwMenuWidget)
+ ((CompositeWidget)menu)->composite.children[0]),
+ CurrentTime);
+ lw_destroy_all_widgets (menu_id);
+ goto pop_down;
+ }
+#endif
+
+ /* Process events that apply to the menu. */
+ while (1)
+ {
+ XEvent event;
+
+ XtAppNextEvent (Xt_app_con, &event);
+ if (event.type == ButtonRelease)
+ {
+ XtDispatchEvent (&event);
+ if (! menubarp)
+ {
+ /* Do the work of construct_mouse_click since it can't
+ be called. Initially, the popup menu has been called
+ from a ButtonPress in the edit_widget. Then the mouse
+ has been set to grabbed. Reset it now. */
+ x_mouse_grabbed &= ~(1 << event.xbutton.button);
+ if (!x_mouse_grabbed)
+ Vmouse_depressed = Qnil;
+ }
+ break;
+ }
+ else if (event.type == Expose)
+ process_expose_from_menu (event);
+ else if (event.type == MotionNotify)
+ {
+ int event_x = (event.xmotion.x_root
+ - (f->display.x->widget->core.x
+ + f->display.x->widget->core.border_width));
+ int event_y = (event.xmotion.y_root
+ - (f->display.x->widget->core.y
+ + f->display.x->widget->core.border_width));
+
+ if (other_menu_bar_item_p (f, event_x, event_y))
+ {
+ /* The mouse moved into a different menu bar item.
+ We should bring up that item's menu instead.
+ First pop down this menu. */
+ XtUngrabPointer ((Widget)
+ ((XlwMenuWidget)
+ ((CompositeWidget)menu)->composite.children[0]),
+ event.xbutton.time);
+ lw_destroy_all_widgets (menu_id);
+
+ /* Put back an event that will bring up the other item's menu. */
+ unread_menu_bar_button (f, event_x);
+ /* Don't let us select anything in this case. */
+ menu_item_selection = 0;
+ break;
+ }
+ }
+
+ XtDispatchEvent (&event);
+ if (XtWindowToWidget(XDISPLAY event.xany.window) != menu)
+ {
+ queue_tmp
+ = (struct event_queue *) malloc (sizeof (struct event_queue));
+
+ if (queue_tmp != NULL)
+ {
+ queue_tmp->event = event;
+ queue_tmp->next = queue;
+ queue = queue_tmp;
+ }
+ }
+ }
+
+ pop_down:
+ /* Unhighlight the menu bar item (if any) that led to this menu. */
+ if (menubarp)
+ {
+ menubar_item->call_data = (XtPointer) 0;
+ dispatch_dummy_expose (f->display.x->menubar_widget, x, y);
+ }
+
+ /* fp turned off the following statement and wrote a comment
+ that it is unnecessary--that the menu has already disappeared.
+ I observer that is not so. -- rms. */
+ /* Make sure the menu disappears. */
+ lw_destroy_all_widgets (menu_id);
+
+ /* Unread any events that we got but did not handle. */
+ while (queue != NULL)
+ {
+ queue_tmp = queue;
+ XPutBackEvent (XDISPLAY &queue_tmp->event);
+ queue = queue_tmp->next;
+ free ((char *)queue_tmp);
+ }
+
+ /* 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], 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;
+ }
+ 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--)
+ entry = Fcons (subprefix_stack[j], entry);
+ }
+ return entry;
+ }
+ i += MENU_ITEMS_ITEM_LENGTH;
+ }
+ }
+ }
+
+ return Qnil;
+}
+
+static char * button_names [] = {
+ "button1", "button2", "button3", "button4", "button5",
+ "button6", "button7", "button8", "button9", "button10" };
+
+static Lisp_Object
+xdialog_show (f, menubarp, keymaps, title, error)
+ FRAME_PTR f;
+ int menubarp;
+ int keymaps;
+ Lisp_Object title;
+ char **error;
+{
+ int i, nb_buttons=0;
+ int dialog_id;
+ Widget menu;
+ XlwMenuWidget menubar = (XlwMenuWidget) f->display.x->menubar_widget;
+ char dialog_name[6];
+
+ /* This is the menu bar item (if any) that led to this menu. */
+ widget_value *menubar_item = 0;
+
+ widget_value *wv, *save_wv = 0, *first_wv = 0, *prev_wv = 0;
+
+ /* Define a queue to save up for later unreading
+ all X events that don't pertain to the menu. */
+ struct event_queue
+ {
+ XEvent event;
+ struct event_queue *next;
+ };
+
+ struct event_queue *queue = NULL;
+ struct event_queue *queue_tmp;
+
+ *error = NULL;
+
+ if (menu_items_n_panes > 1)
+ {
+ *error = "Multiple panes in dialog box";
+ return Qnil;
+ }
+
+ /* Create a tree of widget_value objects
+ representing the text label and buttons. */
+ {
+ Lisp_Object pane_name, prefix;
+ char *pane_string;
+ pane_name = XVECTOR (menu_items)->contents[MENU_ITEMS_PANE_NAME];
+ prefix = XVECTOR (menu_items)->contents[MENU_ITEMS_PANE_PREFIX];
+ pane_string = (NILP (pane_name)
+ ? "" : (char *) XSTRING (pane_name)->data);
+ prev_wv = malloc_widget_value ();
+ prev_wv->value = pane_string;
+ if (keymaps && !NILP (prefix))
+ prev_wv->name++;
+ prev_wv->enabled = 1;
+ prev_wv->name = "message";
+ first_wv = prev_wv;
+
+ /* Loop over all panes and items, filling in the tree. */
+ i = MENU_ITEMS_PANE_LENGTH;
+ while (i < menu_items_used)
+ {
+
+ /* Create a new item within current pane. */
+ Lisp_Object item_name, enable, descrip;
+ item_name = XVECTOR (menu_items)->contents[i + MENU_ITEMS_ITEM_NAME];
+ enable = XVECTOR (menu_items)->contents[i + MENU_ITEMS_ITEM_ENABLE];
+ descrip
+ = XVECTOR (menu_items)->contents[i + MENU_ITEMS_ITEM_EQUIV_KEY];
+
+ if (NILP (item_name))
+ {
+ free_menubar_widget_value_tree (first_wv);
+ *error = "Submenu in dialog items";
+ return Qnil;
+ }
+ if (nb_buttons >= 10)
+ {
+ free_menubar_widget_value_tree (first_wv);
+ *error = "Too many dialog items";
+ return Qnil;
+ }
+
+ wv = malloc_widget_value ();
+ prev_wv->next = wv;
+ wv->name = (char *) button_names[nb_buttons];
+ if (!NILP (descrip))
+ wv->key = XSTRING (descrip)->data;
+ wv->value = XSTRING (item_name)->data;
+ wv->call_data = (void *) &XVECTOR (menu_items)->contents[i];
+ wv->enabled = !NILP (enable);
+ prev_wv = wv;
+
+ nb_buttons++;
+ i += MENU_ITEMS_ITEM_LENGTH;
+ }
+
+ wv = malloc_widget_value ();
+ wv->name = dialog_name;
+
+ /* Dialog boxes use a really stupid name encoding
+ which specifies how many buttons to use
+ and how many buttons are on the right.
+ The Q means something also. */
+ dialog_name[0] = 'Q';
+ dialog_name[1] = '0' + nb_buttons;
+ dialog_name[2] = 'B';
+ dialog_name[3] = 'R';
+ dialog_name[4] = '0' + nb_buttons / 2;
+ dialog_name[5] = 0;
+ wv->contents = first_wv;
+ first_wv = wv;
+
+ }
+
+ /* Actually create the dialog. */
+ dialog_id = ++popup_id_tick;
+ menu = lw_create_widget (first_wv->name, "dialog", dialog_id, first_wv,
+ f->display.x->widget, 1, 0,
+ dialog_selection_callback, 0);
+#if 0 /* This causes crashes, and seems to be redundant -- rms. */
+ lw_modify_all_widgets (dialog_id, first_wv, True);
+#endif
+ lw_modify_all_widgets (dialog_id, first_wv->contents->next, True);
+ /* Free the widget_value objects we used to specify the contents. */
+ free_menubar_widget_value_tree (first_wv);
+
+ /* No selection has been chosen yet. */
+ menu_item_selection = 0;
+
+ /* Display the menu. */
+ lw_pop_up_all_widgets (dialog_id);
+
+ /* Process events that apply to the menu. */
+ while (1)
+ {
+ XEvent event;
+
+ XtAppNextEvent (Xt_app_con, &event);
+ if (event.type == ButtonRelease)
+ {
+ XtDispatchEvent (&event);
+ break;
+ }
+ else if (event.type == Expose)
+ process_expose_from_menu (event);
+ XtDispatchEvent (&event);
+ if (XtWindowToWidget(XDISPLAY event.xany.window) != menu)
+ {
+ queue_tmp = (struct event_queue *) malloc (sizeof (struct event_queue));
+
+ if (queue_tmp != NULL)
+ {
+ queue_tmp->event = event;
+ queue_tmp->next = queue;
+ queue = queue_tmp;
+ }
+ }
+ }
+ pop_down:
+
+ /* Unread any events that we got but did not handle. */
+ while (queue != NULL)
+ {
+ queue_tmp = queue;
+ XPutBackEvent (XDISPLAY &queue_tmp->event);
+ queue = queue_tmp->next;
+ free ((char *)queue_tmp);
+ }
+
+ /* Find the selected item, and its pane, to return
+ the proper value. */
+ if (menu_item_selection != 0)
+ {
+ Lisp_Object prefix;
+
+ prefix = Qnil;
+ i = 0;
+ while (i < menu_items_used)
+ {
+ Lisp_Object entry;
+
+ if (EQ (XVECTOR (menu_items)->contents[i], Qt))
+ {
+ prefix
+ = XVECTOR (menu_items)->contents[i + MENU_ITEMS_PANE_PREFIX];
+ i += MENU_ITEMS_PANE_LENGTH;
+ }
+ else
+ {
+ entry
+ = XVECTOR (menu_items)->contents[i + MENU_ITEMS_ITEM_VALUE];
+ if (menu_item_selection == &XVECTOR (menu_items)->contents[i])
+ {
+ if (keymaps != 0)
+ {
+ entry = Fcons (entry, Qnil);
+ if (!NILP (prefix))
+ entry = Fcons (prefix, entry);
+ }
+ return entry;
+ }
+ i += MENU_ITEMS_ITEM_LENGTH;
+ }
+ }
+ }
+
+ return Qnil;
+}
+#else /* not USE_X_TOOLKIT */
+
+static Lisp_Object
+xmenu_show (f, x, y, menubarp, keymaps, title, error)
+ FRAME_PTR f;
+ int x, y;
+ int keymaps;
+ int menubarp;
+ 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;
+ int dummy_int;
+ unsigned int dummy_uint;
+
+ *error = 0;
+ if (menu_items_n_panes == 0)
+ return Qnil;
+
+ /* Figure out which root window F is on. */
+ XGetGeometry (x_current_display, 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 (XDISPLAY root, "emacs");
+ if (menu == NULL)
+ {
+ *error = "Can't create menu";
+ return Qnil;
+ }
+
+ /* Adjust coordinates to relative to the outer (window manager) window. */
+#ifdef HAVE_X11
+ {
+ 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->display.x->parent_desc != ROOT_WINDOW)
+ {
+ BLOCK_INPUT;
+ XTranslateCoordinates (x_current_display,
+
+ /* From-window, to-window. */
+ f->display.x->window_desc,
+ f->display.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_X11 */
+
+ /* Adjust coordinates to be root-window-relative. */
+ x += f->display.x->left_pos;
+ y += f->display.x->top_pos;
+
+ /* Create all the necessary panes and their items. */
+ i = 0;
+ while (i < menu_items_used)
+ {
+ if (EQ (XVECTOR (menu_items)->contents[i], Qt))
+ {
+ /* Create a new pane. */
+ Lisp_Object pane_name, prefix;
+ char *pane_string;
+
+ pane_name = XVECTOR (menu_items)->contents[i + MENU_ITEMS_PANE_NAME];
+ prefix = XVECTOR (menu_items)->contents[i + MENU_ITEMS_PANE_PREFIX];
+ pane_string = (NILP (pane_name)
+ ? "" : (char *) XSTRING (pane_name)->data);
+ if (keymaps && !NILP (prefix))
+ pane_string++;
+
+ lpane = XMenuAddPane (XDISPLAY menu, pane_string, TRUE);
+ if (lpane == XM_FAILURE)
+ {
+ XMenuDestroy (XDISPLAY menu);
+ *error = "Can't create pane";
+ return Qnil;
+ }
+ i += MENU_ITEMS_PANE_LENGTH;
+ }
+ else
+ {
+ /* 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 (descrip))
+ item_name = concat2 (item_name, descrip);
+
+ if (XMenuAddSelection (XDISPLAY menu, lpane, 0,
+ XSTRING (item_name)->data,
+ !NILP (enable))
+ == XM_FAILURE)
+ {
+ XMenuDestroy (XDISPLAY menu);
+ *error = "Can't add selection to menu";
+ return Qnil;
+ }
+ i += MENU_ITEMS_ITEM_LENGTH;
+ }
+ }
+
+ /* All set and ready to fly. */
+ XMenuRecompute (XDISPLAY menu);
+ dispwidth = DisplayWidth (x_current_display, XDefaultScreen (x_current_display));
+ dispheight = DisplayHeight (x_current_display, XDefaultScreen (x_current_display));
+ x = min (x, dispwidth);
+ y = min (y, dispheight);
+ x = max (x, 1);
+ y = max (y, 1);
+ XMenuLocate (XDISPLAY menu, 0, 0, x, y,
+ &ulx, &uly, &width, &height);
+ if (ulx+width > dispwidth)
+ {
+ x -= (ulx + width) - dispwidth;
+ ulx = dispwidth - width;
+ }
+ if (uly+height > dispheight)
+ {
+ y -= (uly + height) - dispheight;
+ uly = dispheight - height;
+ }
+ if (ulx < 0) x -= ulx;
+ if (uly < 0) y -= uly;
+
+ XMenuSetAEQ (menu, TRUE);
+ XMenuSetFreeze (menu, TRUE);
+ pane = selidx = 0;
+
+ status = XMenuActivate (XDISPLAY menu, &pane, &selidx,
+ x, y, ButtonReleaseMask, &datap);
+ 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:
+ XMenuDestroy (XDISPLAY menu);
+ *error = "Can't activate menu";
+ case XM_IA_SELECT:
+ case XM_NO_SELECT:
+ entry = Qnil;
+ break;
+ }
+ XMenuDestroy (XDISPLAY menu);
+ return entry;
+}
+#endif /* not USE_X_TOOLKIT */
+\f
+syms_of_xmenu ()
+{
+ staticpro (&menu_items);
+ menu_items = Qnil;
+
+ popup_id_tick = (1<<16);
+ defsubr (&Sx_popup_menu);
+ defsubr (&Sx_popup_dialog);
+}
HCoop / bpt / emacs.git / blobdiff