-/* X Communication module for terminals which understand the X protocol.
- Copyright (C) 1986, 1988, 1993 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. */
-
-#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))
-
-#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 */
-
-extern Lisp_Object Qmenu_enable;
-extern Lisp_Object Qmenu_bar;
-Lisp_Object xmenu_show ();
-extern int x_error_handler ();
-#ifdef USE_X_TOOLKIT
-static widget_value *set_menu_items ();
-static int string_width ();
-static void free_menu_items ();
-#endif
-
-/* we need a unique id for each popup menu and dialog box */
-unsigned int popup_id_tick;
-
-/*************************************************************/
-
-#if 0
-/* Ignoring the args is easiest. */
-xmenu_quit ()
-{
- error ("Unknown XMenu error");
-}
-#endif
-
-\f
-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. (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\
-\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.")
- (position, menu)
- Lisp_Object position, menu;
-{
- int number_of_panes, panes;
- Lisp_Object XMenu_return, keymap, tem;
- int XMenu_xpos, XMenu_ypos;
- char **menus;
- char ***names;
- int **enables;
- Lisp_Object **obj_list;
- Lisp_Object *prefixes;
- int *items;
- char *title;
- char *error_name;
- Lisp_Object ltitle, selection;
- int i, j, menubarp = 0;
- FRAME_PTR f;
- Lisp_Object x, y, window;
-#ifdef USE_X_TOOLKIT
- widget_value *val, *vw = 0;
-#endif /* USE_X_TOOLKIT */
-
- check_x ();
- /* 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 = 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);
- }
- CHECK_NUMBER (x, 0);
- CHECK_NUMBER (y, 0);
-
- if (XTYPE (window) == Lisp_Frame)
- {
- f = XFRAME (window);
-
- XMenu_xpos = 0;
- XMenu_ypos = 0;
- }
- else if (XTYPE (window) == Lisp_Window)
- {
- CHECK_LIVE_WINDOW (window, 0);
- f = XFRAME (WINDOW_FRAME (XWINDOW (window)));
-
- XMenu_xpos = FONT_WIDTH (f->display.x->font)
- * XWINDOW (window)->left;
- XMenu_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);
-
-#ifdef USE_X_TOOLKIT
- tem = Fcar (Fcdr (Fcar (Fcdr (position))));
- if (XTYPE (Fcar (position)) != Lisp_Cons
- && CONSP (tem)
- && EQ (Fcar (tem), Qmenu_bar))
- {
- /* We are in the menubar */
- XlwMenuWidget mw;
- int w1 = 0, w2;
-
- mw = (XlwMenuWidget)f->display.x->menubar_widget;
- menubarp = 1;
- for (vw = mw->menu.old_stack [0]->contents; vw; vw = vw->next)
- {
- w2 = w1;
- w1 += string_width (mw, vw->name)
- + 2 * (mw->menu.horizontal_spacing +
- mw->menu.shadow_thickness);
- if (XINT (x) < w1)
- {
- XMenu_xpos = w2 + 4;
- XMenu_ypos = 0;
- break;
- }
- }
- }
- else
- {
- XMenu_xpos += FONT_WIDTH (f->display.x->font) * XINT (x);
- XMenu_ypos += FONT_HEIGHT (f->display.x->font) * XINT (y);
- }
-
- BLOCK_INPUT;
- XMenu_xpos += (f->display.x->widget->core.x
- + f->display.x->widget->core.border_width);
- XMenu_ypos += (f->display.x->widget->core.y
- + f->display.x->widget->core.border_width
- + f->display.x->menubar_widget->core.height);
- UNBLOCK_INPUT;
-
- val = set_menu_items (menu, &prefixes, &panes, &names,
- &enables, &menus, &items, &number_of_panes, &obj_list,
- &title, &error_name);
- selection = xmenu_show (f, val, XMenu_xpos, XMenu_ypos,
- menubarp, vw);
-
- free_menu_items (names, enables, menus, items, number_of_panes, obj_list,
- title, error_name);
-
- if (selection != NUL)
- { /* selected something */
- XMenu_return = selection;
- }
- else
- { /* nothing selected */
- XMenu_return = Qnil;
- }
-
- return XMenu_return;
-
-#else /* not USE_X_TOOLKIT */
-#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;
- XMenu_xpos += win_x;
- XMenu_ypos += win_y;
- }
- }
-#endif /* HAVE_X11 */
-
- XMenu_xpos += FONT_WIDTH (f->display.x->font) * XINT (x);
- XMenu_ypos += FONT_HEIGHT (f->display.x->font) * XINT (y);
-
- 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, &enables,
- &items, &prefixes, &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, &enables,
- &items, &prefixes, 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;
- prefixes = 0;
- number_of_panes = list_of_panes (&obj_list, &menus, &names, &enables,
- &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;
- {
- Window root;
- int root_x, root_y;
- int dummy_int;
- unsigned int dummy_uint;
- Window dummy_window;
-
- /* 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);
-
- /* Translate the menu co-ordinates within f to menu co-ordinates
- on that root window. */
- if (! XTranslateCoordinates (x_current_display,
- FRAME_X_WINDOW (f), root,
- XMenu_xpos, XMenu_ypos, &root_x, &root_y,
- &dummy_window))
- /* But XGetGeometry said root was the root window of f's screen! */
- abort ();
- selection = xmenu_show (root, XMenu_xpos, XMenu_ypos, names, enables,
- menus, prefixes, 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++)
- {
- xfree (names[i]);
- xfree (enables[i]);
- xfree (obj_list[i]);
- }
- xfree (menus);
- xfree (obj_list);
- xfree (names);
- xfree (enables);
- xfree (items);
- /* free (title); */
- if (error_name) error (error_name);
- return XMenu_return;
-#endif /* not USE_X_TOOLKIT */
-}
-\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);
-}
-
-
-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;
- items = FRAME_MENU_BAR_ITEMS (f);
- for (; CONSP (items); items = XCONS (items)->cdr)
- if (!strcmp (val->name,
- XSTRING (Fcar (Fcdr (Fcar (items))))->data))
- return items;
- }
- }
- return Qnil;
-}
-
-static widget_value *
-set_menu_items (menu, prefixes, panes, names, enables, menus,
- items, number_of_panes, obj_list, title, error_name)
- Lisp_Object menu;
- Lisp_Object **prefixes;
- int *panes;
- char ***names[];
- int ***enables;
- char ***menus;
- int **items;
- int *number_of_panes;
- Lisp_Object ***obj_list;
- char **title;
- char **error_name;
-{
- Lisp_Object keymap, tem;
- Lisp_Object ltitle, selection;
- int i, j;
- widget_value *wv, *save_wv = 0, *first_wv = 0, *prev_wv = 0;
- int last, selidx, lpane, status;
- int lines, sofar;
-
- 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, enables,
- items, prefixes, 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, enables,
- items, prefixes, 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;
- *prefixes = 0;
- *number_of_panes = list_of_panes (obj_list, menus, names, enables,
- items, Fcdr (menu));
- }
-
- *error_name = 0;
- if (*number_of_panes == 0)
- return 0;
-
- *error_name = (char *) 0; /* Initialize error pointer to null */
-
- wv = malloc_widget_value ();
- wv->name = "menu";
- wv->value = 0;
- wv->enabled = 1;
- first_wv = wv;
-
- for (*panes = 0, lines = 0; *panes < *number_of_panes;
- lines += (*items)[*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 < *number_of_panes;
- sofar += (*items)[*panes], (*panes)++)
- {
- if (strcmp((*menus)[*panes], ""))
- {
- wv = malloc_widget_value ();
- if (save_wv)
- save_wv->next = wv;
- else
- first_wv->contents = wv;
- wv->name = (*menus)[*panes];
- wv->value = 0;
- wv->enabled = 1;
- }
- prev_wv = 0;
- save_wv = wv;
-
- for (selidx = 0; selidx < (*items)[*panes]; selidx++)
- {
- wv = malloc_widget_value ();
- if (prev_wv)
- prev_wv->next = wv;
- else
- save_wv->contents = wv;
- wv->name = (*names)[*panes][selidx];
- wv->value = 0;
- selection = (*obj_list)[*panes][selidx];
- if (*prefixes != 0)
- {
- selection = Fcons (selection, Qnil);
- if (!NILP ((*prefixes)[*panes]))
- selection = Fcons ((*prefixes)[*panes], selection);
- }
- wv->call_data = LISP_TO_VOID(selection);
- wv->enabled = (*enables)[*panes][selidx];
- prev_wv = wv;
- }
- }
-
- return (first_wv);
-}
-
-static void
-free_menu_items (names, enables, menus, items, number_of_panes,
- obj_list, title, error_name)
- char **names[];
- int *enables[];
- char **menus;
- int *items;
- int number_of_panes;
- Lisp_Object **obj_list;
- char *title;
- char *error_name;
-{
- int i;
- /* now free up the strings */
- for (i = 0; i < number_of_panes; i++)
- {
- xfree (names[i]);
- xfree (enables[i]);
- xfree (obj_list[i]);
- }
- xfree (menus);
- xfree (obj_list);
- xfree (names);
- xfree (enables);
- xfree (items);
- /* free (title); */
- if (error_name) error (error_name);
-
-}
-
-static Lisp_Object menu_item_selection;
-
-static void
-popup_selection_callback (widget, id, client_data)
- Widget widget;
- LWLIB_ID id;
- XtPointer client_data;
-{
- VOID_TO_LISP (menu_item_selection, 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;
-}
-
-/* This recursively calls free_widget_value() on the tree of widgets.
- It must free all data that was malloc'ed for these widget_values.
- Currently, emacs only allocates new storage for the `key' slot.
- All other 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;
- if (wv->key) xfree (wv->key);
-
- 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;
-}
-
-static void
-update_one_frame_psheets (f)
- FRAME_PTR f;
-{
- struct x_display *x = f->display.x;
-
- int menubar_changed;
-
- menubar_changed = (x->menubar_widget
- && !XtIsManaged (x->menubar_widget));
-
- if (! (menubar_changed))
- return;
-
- BLOCK_INPUT;
- 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);
- UNBLOCK_INPUT;
-}
-
-void
-set_frame_menubar (f)
- FRAME_PTR f;
-{
- Widget menubar_widget = f->display.x->menubar_widget;
- int id = (int) f;
- Lisp_Object tail;
- widget_value *wv, *save_wv, *first_wv, *prev_wv = 0;
-
- BLOCK_INPUT;
-
- wv = malloc_widget_value ();
- wv->name = "menubar";
- wv->value = 0;
- wv->enabled = 1;
- save_wv = first_wv = wv;
-
-
- for (tail = FRAME_MENU_BAR_ITEMS (f); CONSP (tail); tail = XCONS (tail)->cdr)
- {
- Lisp_Object string;
-
- string = Fcar (Fcdr (Fcar (tail)));
-
- 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);
-
- update_one_frame_psheets (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;
- }
-}
-#endif /* USE_X_TOOLKIT */
-\f
-struct indices {
- int pane;
- int line;
-};
-
-extern void process_expose_from_menu ();
-
-#ifdef USE_X_TOOLKIT
-extern XtAppContext Xt_app_con;
-
-Lisp_Object
-xmenu_show (f, val, x, y, menubarp, vw)
- FRAME_PTR f;
- widget_value *val;
- int x;
- int y;
- int menubarp;
- widget_value *vw;
-{
- int menu_id, item_length;
- Lisp_Object selection;
- Widget menu;
- XlwMenuWidget menuw = (XlwMenuWidget) f->display.x->menubar_widget;
-
- /*
- * Define and allocate a foreign event queue to hold events
- * that don't belong to XMenu. These events are later restored
- * to the X event queue.
- */
- typedef struct _xmeventque
- {
- XEvent event;
- struct _xmeventque *next;
- } XMEventQue;
-
- XMEventQue *feq = NULL; /* Foreign event queue. */
- XMEventQue *feq_tmp; /* Foreign event queue temporary. */
-
- BLOCK_INPUT;
- if (val == 0) return Qnil;
-
- menu_id = ++popup_id_tick;
- menu = lw_create_widget ("popup", val->name, menu_id, val,
- f->display.x->widget, 1, 0,
- popup_selection_callback, popup_down_callback);
- free_menubar_widget_value_tree (val);
-
- /* reset the selection */
- menu_item_selection = Qnil;
-
- {
- 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;
-
- if (menubarp)
- {
- vw->call_data = (XtPointer) 1;
- dispatch_dummy_expose (f->display.x->menubar_widget, x, y);
- }
-
-
- /* We activate directly the lucid implementation */
- pop_up_menu (mw, &dummy);
- }
-
- if (menubarp)
- {
- item_length = (x + string_width (menuw, vw->name)
- + (2 * (menuw->menu.horizontal_spacing
- + menuw->menu.shadow_thickness))
- - 4);
- }
-
- /* Enters XEvent loop */
- 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);
- else
- if (event.type == MotionNotify
- && menubarp
- && ((event.xmotion.y_root
- >= (f->display.x->widget->core.y
- + f->display.x->widget->core.border_width))
- && (event.xmotion.y_root
- < (f->display.x->widget->core.y
- + f->display.x->widget->core.border_width
- + f->display.x->menubar_widget->core.height)))
- && ((event.xmotion.x_root
- >= (f->display.x->widget->core.x
- + f->display.x->widget->core.border_width))
- && (event.xmotion.x_root
- < (f->display.x->widget->core.x
- + f->display.x->widget->core.border_width
- + f->display.x->widget->core.width)))
- && (event.xmotion.x_root >= item_length
- || event.xmotion.x_root < (x - 4)))
- {
- BLOCK_INPUT;
- XtUngrabPointer ((Widget)
- ((XlwMenuWidget)
- ((CompositeWidget)menu)->composite.children[0]),
- event.xbutton.time);
- lw_destroy_all_widgets (menu_id);
- UNBLOCK_INPUT;
-
- event.type = ButtonPress;
- event.xbutton.time = CurrentTime;
- event.xbutton.button = Button1;
- event.xbutton.window = XtWindow (f->display.x->menubar_widget);
- event.xbutton.x = (event.xbutton.x_root
- - (f->display.x->widget->core.x
- + f->display.x->widget->core.border_width));
- XPutBackEvent (XDISPLAY &event);
- break;
- }
-
- XtDispatchEvent (&event);
- feq_tmp = (XMEventQue *) malloc (sizeof (XMEventQue));
-
- if (feq_tmp == NULL)
- return(Qnil);
-
- feq_tmp->event = event;
- feq_tmp->next = feq;
- feq = feq_tmp;
- }
-
- if (menubarp)
- {
- vw->call_data = (XtPointer) 0;
- dispatch_dummy_expose (f->display.x->menubar_widget, x, y);
- }
-
- /* Return any foreign events that were queued to the X event queue. */
- while (feq != NULL)
- {
- feq_tmp = feq;
- XPutBackEvent (XDISPLAY &feq_tmp->event);
- feq = feq_tmp->next;
- free ((char *)feq_tmp);
- }
-
- UNBLOCK_INPUT;
-
- return menu_item_selection;
-}
-
-#else /* not USE_X_TOOLKIT */
-xmenu_show (parent, startx, starty, line_list, enable_list, pane_list,
- prefixes, 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 */
- int *enable_list[]; /* enable flags of lines */
- char *pane_list[]; /* list of pane titles */
- Lisp_Object *prefixes; /* Prefix key for each pane */
- 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;
-
- *error = 0;
- if (pane_cnt == 0)
- return 0;
-
- BLOCK_INPUT;
- *error = (char *) 0; /* Initialize error pointer to null */
-
- GXMenu = XMenuCreate (XDISPLAY parent, "emacs");
- if (GXMenu == NUL)
- {
- *error = "Can't create menu";
- UNBLOCK_INPUT;
- 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";
- UNBLOCK_INPUT;
- 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],
- enable_list[panes][selidx])
- == XM_FAILURE)
- {
- XMenuDestroy (XDISPLAY GXMenu);
- /* free (datap); */
- *error = "Can't add selection to menu";
- /* error ("Can't add selection to menu"); */
- UNBLOCK_INPUT;
- 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];
- if (prefixes != 0)
- {
- entry = Fcons (entry, Qnil);
- if (!NILP (prefixes[panes]))
- entry = Fcons (prefixes[panes], entry);
- }
- 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);
- UNBLOCK_INPUT;
- /* free (datap_save);*/
- return (entry);
-}
-#endif /* not USE_X_TOOLKIT */
-
-syms_of_xmenu ()
-{
- popup_id_tick = (1<<16);
- defsubr (&Sx_popup_menu);
-}
-\f
-/* Construct the vectors that describe a menu
- and store them in *VECTOR, *PANES, *NAMES, *ENABLES 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, enables, items, prefixes, keymaps, nmaps)
- Lisp_Object ***vector; /* RETURN all menu objects */
- char ***panes; /* RETURN pane names */
- char ****names; /* RETURN all line names */
- int ***enables; /* RETURN enable-flags of lines */
- int **items; /* RETURN number of items per pane */
- Lisp_Object **prefixes; /* RETURN vector of prefix keys, 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 **));
- *enables = (int **) xmalloc (npanes_allocated * sizeof (int *));
- *prefixes = (Lisp_Object *) xmalloc (npanes_allocated * sizeof (Lisp_Object));
-
- /* 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, enables, items,
- prefixes, &p, &npanes_allocated, "");
-
- /* Return the number of panes. */
- return p;
-}
-
-/* This is used as the handler when calling internal_condition_case_1. */
-
-static Lisp_Object
-single_keymap_panes_1 (arg)
- Lisp_Object arg;
-{
- return Qnil;
-}
-
-/* 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. */
-
-single_keymap_panes (keymap, panes, vector, names, enables, items, prefixes,
- 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 ***enables; /* RETURN enable flags of lines */
- int **items; /* RETURN number of items per pane */
- Lisp_Object **prefixes; /* RETURN vector of prefix keys, 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));
- *prefixes
- = (Lisp_Object *) xrealloc (*prefixes,
- (*npanes_allocated_ptr
- * sizeof (Lisp_Object)));
- *names
- = (char ***) xrealloc (*names,
- *npanes_allocated_ptr * sizeof (char **));
- *enables
- = (int **) xrealloc (*enables,
- *npanes_allocated_ptr * sizeof (int *));
- }
-
- /* When a menu comes from keymaps, don't give names to the panes. */
- (*panes)[*p_ptr] = pane_name;
-
- /* Normally put nil as pane's prefix key.
- Caller will override this if appropriate. */
- (*prefixes)[*p_ptr] = Qnil;
-
- /* 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 *));
- (*enables)[*p_ptr] = (int *) xmalloc (i * sizeof (int));
-
- /* 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 def, tem;
- Lisp_Object enabled;
-
- def = Fcdr (item1);
- enabled = Qt;
- 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,
- single_keymap_panes_1);
- }
- tem = Fkeymapp (def);
- if (XSTRING (item2)->data[0] == '@' && !NILP (tem))
- pending_maps = Fcons (Fcons (def, Fcons (item2, XCONS (item)->car)),
- 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;
- (*enables)[*p_ptr][i]
- = (NILP (def) ? -1 : !NILP (enabled) ? 1 : 0);
- 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;
- Lisp_Object def;
- Lisp_Object enabled;
-
- def = Fcdr (item1);
- enabled = Qt;
- if (XTYPE (def) == Lisp_Symbol)
- {
- tem = Fget (def, Qmenu_enable);
- /* No property, or nil, means enable.
- Otherwise, enable if value is not nil. */
- if (!NILP (tem))
- /* (condition-case nil (eval tem)
- (error nil)) */
- enabled = internal_condition_case_1 (Feval, tem,
- Qerror,
- single_keymap_panes_1);
- }
-
- tem = Fkeymapp (def);
- if (XSTRING (item2)->data[0] == '@' && !NILP (tem))
- pending_maps = Fcons (Fcons (def, Fcons (item2, character)),
- 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;
- (*enables)[*p_ptr][i]
- = (NILP (def) ? -1 : !NILP (enabled) ? 1 : 0);
- 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)
- {
- xfree ((*vector)[*p_ptr]);
- xfree ((*names)[*p_ptr]);
- xfree ((*enables)[*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, eltcdr;
- int panenum = *p_ptr;
- elt = Fcar (pending_maps);
- eltcdr = XCONS (elt)->cdr;
- single_keymap_panes (Fcar (elt), panes, vector, names, enables, items,
- prefixes, p_ptr, npanes_allocated_ptr,
- /* Add 1 to discard the @. */
- (char *) XSTRING (XCONS (eltcdr)->car)->data + 1);
- (*prefixes)[panenum] = XCONS (eltcdr)->cdr;
- pending_maps = Fcdr (pending_maps);
- }
-}
-\f
-/* Construct the vectors that describe a menu
- and store them in *VECTOR, *PANES, *NAMES, *ENABLES 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, enables, items, menu)
- Lisp_Object ***vector; /* RETURN all menu objects */
- char ***panes; /* RETURN pane names */
- char ****names; /* RETURN all line names */
- int ***enables; /* RETURN enable flags of lines */
- 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 **));
- *enables = (int **) xmalloc (i * sizeof (int *));
-
- 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, (*enables)+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. Put the enable flags
- int *ENABLES. Return the number of items. */
-
-int
-list_of_items (vector, names, enables, pane)
- Lisp_Object **vector; /* RETURN menu "objects" */
- char ***names; /* RETURN line names */
- int **enables; /* RETURN enable flags of lines */
- 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));
-
- *vector = (Lisp_Object *) xmalloc (i * sizeof (Lisp_Object));
- *names = (char **) xmalloc (i * sizeof (char *));
- *enables = (int *) xmalloc (i * sizeof (int));
-
- for (i = 0, tail = pane; !NILP (tail); tail = Fcdr (tail), i++)
- {
- item = Fcar (tail);
- if (STRINGP (item))
- {
- (*vector)[i] = Qnil;
- (*names)[i] = (char *) XSTRING (item)->data;
- (*enables)[i] = -1;
- }
- else
- {
- CHECK_CONS (item, 0);
- (*vector)[i] = Fcdr (item);
- item1 = Fcar (item);
- CHECK_STRING (item1, 1);
- (*names)[i] = (char *) XSTRING (item1)->data;
- (*enables)[i] = 1;
- }
- }
- 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. */
+
+/* On 4.3 this loses if it comes after xterm.h. */
+#include <signal.h>
+#include <config.h>
+
+#include <stdio.h>
+#include "lisp.h"
+#include "termhooks.h"
+#include "frame.h"
+#include "window.h"
+#include "keyboard.h"
+#include "blockinput.h"
+#include "puresize.h"
+#include "buffer.h"
+
+#ifdef 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
+#ifdef USE_X_TOOLKIT
+#include <X11/Xlib.h>
+#include <X11/IntrinsicP.h>
+#include <X11/CoreP.h>
+#include <X11/StringDefs.h>
+#include <X11/Shell.h>
+#include <X11/Xaw/Paned.h>
+#include "../lwlib/lwlib.h"
+#else /* not USE_X_TOOLKIT */
+#include "../oldXMenu/XMenu.h"
+#endif /* not USE_X_TOOLKIT */
+#endif /* HAVE_X_WINDOWS */
+
+#define min(x,y) (((x) < (y)) ? (x) : (y))
+#define max(x,y) (((x) > (y)) ? (x) : (y))
+
+#ifndef TRUE
+#define TRUE 1
+#define FALSE 0
+#endif /* no TRUE */
+
+Lisp_Object Qdebug_on_next_call;
+
+extern Lisp_Object Qmenu_enable;
+extern Lisp_Object Qmenu_bar;
+extern Lisp_Object Qmouse_click, Qevent_kind;
+
+extern Lisp_Object Vdefine_key_rebound_commands;
+
+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 void process_expose_from_menu ();
+extern XtAppContext Xt_app_con;
+
+static Lisp_Object xdialog_show ();
+void popup_get_selection ();
+#endif
+
+static Lisp_Object xmenu_show ();
+static void keymap_panes ();
+static void single_keymap_panes ();
+static void 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 5 elements per item:
+ the item string, the enable flag, the item's value,
+ the definition, and the equivalent keyboard key's description string.
+
+ In some cases, multiple levels of menus may be described.
+ A single vector slot containing nil indicates the start of a submenu.
+ A single vector slot containing lambda indicates the end of a submenu.
+ The submenu follows a menu item which is the way to reach the submenu.
+
+ A single vector slot containing quote indicates that the
+ following items should appear on the right of a dialog box.
+
+ Using a Lisp vector to hold this information while we decode it
+ takes care of protecting all the data from GC. */
+
+#define MENU_ITEMS_PANE_NAME 1
+#define MENU_ITEMS_PANE_PREFIX 2
+#define MENU_ITEMS_PANE_LENGTH 3
+
+#define MENU_ITEMS_ITEM_NAME 0
+#define MENU_ITEMS_ITEM_ENABLE 1
+#define MENU_ITEMS_ITEM_VALUE 2
+#define MENU_ITEMS_ITEM_EQUIV_KEY 3
+#define MENU_ITEMS_ITEM_DEFINITION 4
+#define MENU_ITEMS_ITEM_LENGTH 5
+
+static Lisp_Object menu_items;
+
+/* Number of slots currently allocated in menu_items. */
+static int menu_items_allocated;
+
+/* This is the index in menu_items of the first empty slot. */
+static int menu_items_used;
+
+/* The number of panes currently recorded in menu_items,
+ excluding those within submenus. */
+static int menu_items_n_panes;
+
+/* Current depth within submenus. */
+static int menu_items_submenu_depth;
+
+/* Flag which when set indicates a dialog or menu has been posted by
+ Xt on behalf of one of the widget sets. */
+static int popup_activated_flag;
+
+static int next_menubar_widget_id;
+\f
+#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 = XCONS (tail)->cdr)
+ {
+ frame = XCONS (tail)->car;
+ if (!GC_FRAMEP (frame))
+ continue;
+ f = XFRAME (frame);
+ if (f->output_data.nothing == 1)
+ continue;
+ if (f->output_data.x->id == id)
+ return f;
+ }
+ return 0;
+}
+
+#endif
+\f
+/* Initialize the menu_items structure if we haven't already done so.
+ Also mark it as currently empty. */
+
+static void
+init_menu_items ()
+{
+ if (NILP (menu_items))
+ {
+ menu_items_allocated = 60;
+ menu_items = Fmake_vector (make_number (menu_items_allocated), Qnil);
+ }
+
+ menu_items_used = 0;
+ menu_items_n_panes = 0;
+ menu_items_submenu_depth = 0;
+}
+
+/* Call at the end of generating the data in menu_items.
+ This fills in the number of items in the last pane. */
+
+static void
+finish_menu_items ()
+{
+}
+
+/* Call when finished using the data for the current menu
+ in menu_items. */
+
+static void
+discard_menu_items ()
+{
+ /* Free the structure if it is especially large.
+ Otherwise, hold on to it, to save time. */
+ if (menu_items_allocated > 200)
+ {
+ menu_items = Qnil;
+ menu_items_allocated = 0;
+ }
+}
+
+/* Make the menu_items vector twice as large. */
+
+static void
+grow_menu_items ()
+{
+ Lisp_Object old;
+ int old_size = menu_items_allocated;
+ old = menu_items;
+
+ menu_items_allocated *= 2;
+ menu_items = Fmake_vector (make_number (menu_items_allocated), Qnil);
+ bcopy (XVECTOR (old)->contents, XVECTOR (menu_items)->contents,
+ old_size * sizeof (Lisp_Object));
+}
+
+/* Begin a submenu. */
+
+static void
+push_submenu_start ()
+{
+ if (menu_items_used + 1 > menu_items_allocated)
+ grow_menu_items ();
+
+ XVECTOR (menu_items)->contents[menu_items_used++] = Qnil;
+ menu_items_submenu_depth++;
+}
+
+/* End a submenu. */
+
+static void
+push_submenu_end ()
+{
+ if (menu_items_used + 1 > menu_items_allocated)
+ grow_menu_items ();
+
+ XVECTOR (menu_items)->contents[menu_items_used++] = Qlambda;
+ menu_items_submenu_depth--;
+}
+
+/* Indicate boundary between left and right. */
+
+static void
+push_left_right_boundary ()
+{
+ if (menu_items_used + 1 > menu_items_allocated)
+ grow_menu_items ();
+
+ XVECTOR (menu_items)->contents[menu_items_used++] = Qquote;
+}
+
+/* Start a new menu pane in menu_items..
+ NAME is the pane name. PREFIX_VEC is a prefix key for this pane. */
+
+static void
+push_menu_pane (name, prefix_vec)
+ Lisp_Object name, prefix_vec;
+{
+ if (menu_items_used + MENU_ITEMS_PANE_LENGTH > menu_items_allocated)
+ grow_menu_items ();
+
+ if (menu_items_submenu_depth == 0)
+ menu_items_n_panes++;
+ XVECTOR (menu_items)->contents[menu_items_used++] = Qt;
+ XVECTOR (menu_items)->contents[menu_items_used++] = name;
+ XVECTOR (menu_items)->contents[menu_items_used++] = prefix_vec;
+}
+
+/* Push one menu item into the current pane.
+ NAME is the string to display. ENABLE if non-nil means
+ this item can be selected. KEY is the key generated by
+ choosing this item, or nil if this item doesn't really have a definition.
+ DEF is the definition of this item.
+ EQUIV is the textual description of the keyboard equivalent for
+ this item (or nil if none). */
+
+static void
+push_menu_item (name, enable, key, def, equiv)
+ Lisp_Object name, enable, key, def, equiv;
+{
+ if (menu_items_used + MENU_ITEMS_ITEM_LENGTH > menu_items_allocated)
+ grow_menu_items ();
+
+ XVECTOR (menu_items)->contents[menu_items_used++] = name;
+ XVECTOR (menu_items)->contents[menu_items_used++] = enable;
+ XVECTOR (menu_items)->contents[menu_items_used++] = key;
+ XVECTOR (menu_items)->contents[menu_items_used++] = equiv;
+ XVECTOR (menu_items)->contents[menu_items_used++] = def;
+}
+\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;
+ struct gcpro gcpro1, gcpro2, gcpro3, gcpro4;
+
+ /* 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;
+ }
+
+ GCPRO4 (def, def1, savedkey, descrip);
+
+ /* Is it still valid? */
+ def1 = Qnil;
+ if (!NILP (savedkey))
+ def1 = Fkey_binding (savedkey, Qnil);
+ /* If not, update it. */
+ if (! EQ (def1, def)
+ /* If the command is an alias for another
+ (such as easymenu.el and lmenu.el set it up),
+ check if the original command matches the cached command. */
+ && !(SYMBOLP (def) && SYMBOLP (XSYMBOL (def)->function)
+ && EQ (def1, XSYMBOL (def)->function))
+ /* If something had no key binding before, don't recheck it
+ because that is too slow--except if we have a list of rebound
+ commands in Vdefine_key_rebound_commands, do recheck any command
+ that appears in that list. */
+ && (NILP (cachelist) || !NILP (savedkey)
+ || (! EQ (Qt, Vdefine_key_rebound_commands)
+ && !NILP (Fmemq (def, Vdefine_key_rebound_commands)))))
+ {
+ changed = 1;
+ descrip = Qnil;
+ /* If the command is an alias for another
+ (such as easymenu.el and lmenu.el set it up),
+ see if the original command name has equivalent keys. */
+ if (SYMBOLP (def) && SYMBOLP (XSYMBOL (def)->function))
+ savedkey = Fwhere_is_internal (XSYMBOL (def)->function,
+ Qnil, Qt, Qnil);
+ else
+ /* Otherwise look up the specified command itself.
+ We don't try both, because that makes easymenu menus slow. */
+ savedkey = Fwhere_is_internal (def, Qnil, Qt, 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))
+ {
+ CHECK_IMPURE (item1);
+ XCONS (item1)->cdr = Fcons (Fcons (savedkey, descrip), def);
+ }
+ else if (changed)
+ {
+ XCONS (cachelist)->car = savedkey;
+ XCONS (cachelist)->cdr = descrip;
+ }
+
+ UNGCPRO;
+ *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;
+{
+ /* If we got a quit from within the menu computation,
+ quit all the way out of it. This takes care of C-] in the debugger. */
+ if (CONSP (arg) && EQ (XCONS (arg)->car, Qquit))
+ Fsignal (Qquit, Qnil);
+
+ 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;
+ int notreal;
+{
+ Lisp_Object enabled, tem;
+
+ enabled = Qt;
+ if (notreal)
+ return enabled;
+ if (SYMBOLP (def))
+ {
+ /* 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; CONSP (tail); 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 (CONSP (item))
+ {
+ item1 = XCONS (item)->cdr;
+ if (CONSP (item1))
+ {
+ item_string = XCONS (item1)->car;
+ if (STRINGP (item_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;
+
+ /* GCPRO because ...enabled_p will call eval
+ and ..._equiv_key may autoload something.
+ 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. */
+ descrip = def = Qnil;
+ GCPRO4 (keymap, pending_maps, def, descrip);
+
+ def = menu_item_equiv_key (item_string, item1, &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;
+ GCPRO4 (keymap, pending_maps, descrip, item_string);
+ submap = get_keymap_1 (def, 0, 1);
+ UNGCPRO;
+#ifndef USE_X_TOOLKIT
+ /* Indicate visually that this is a submenu. */
+ if (!NILP (submap))
+ item_string = concat2 (item_string,
+ build_string (" >"));
+#endif
+ /* If definition is nil, pass nil as the key. */
+ push_menu_item (item_string, enabled,
+ XCONS (item)->car, def,
+ 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 (VECTORP (item))
+ {
+ /* Loop over the char values represented in the vector. */
+ int len = XVECTOR (item)->size;
+ int c;
+ for (c = 0; c < len; c++)
+ {
+ Lisp_Object character;
+ XSETFASTINT (character, c);
+ item1 = XVECTOR (item)->contents[c];
+ if (CONSP (item1))
+ {
+ item_string = XCONS (item1)->car;
+ if (STRINGP (item_string))
+ {
+ Lisp_Object def;
+
+ /* These are the saved equivalent keyboard key sequence
+ and its key-description. */
+ Lisp_Object descrip;
+ Lisp_Object tem, enabled;
+
+ /* GCPRO because ...enabled_p will call eval
+ and ..._equiv_key may autoload something.
+ 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);
+ descrip = def = Qnil;
+
+ def = menu_item_equiv_key (item_string, item1, &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;
+ GCPRO4 (keymap, pending_maps, descrip, item_string);
+ submap = get_keymap_1 (def, 0, 1);
+ UNGCPRO;
+#ifndef USE_X_TOOLKIT
+ if (!NILP (submap))
+ item_string = concat2 (item_string,
+ build_string (" >"));
+#endif
+ /* If definition is nil, pass nil as the key. */
+ push_menu_item (item_string, enabled, character,
+ def, 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, Qt, Qnil);
+ else if (NILP (item))
+ push_left_right_boundary ();
+ else
+ {
+ CHECK_CONS (item, 0);
+ item1 = Fcar (item);
+ CHECK_STRING (item1, 1);
+ push_menu_item (item1, Qt, Fcdr (item), Qt, Qnil);
+ }
+ }
+}
+\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 pixels from the top left\n\
+corner of WINDOW's frame. (WINDOW may be a frame object instead of a window.)\n\
+This controls the position of the center of the first line\n\
+in the first pane of the menu, not the top left of the menu as a whole.\n\
+If POSITION is t, it means to use the current mouse position.\n\
+\n\
+MENU is a specifier for a menu. For the simplest case, MENU is a keymap.\n\
+The menu items come from key bindings that have a menu string as well as\n\
+a definition; actually, the \"definition\" in such a key binding looks like\n\
+\(STRING . REAL-DEFINITION). To give the menu a title, put a string into\n\
+the keymap as a top-level element.\n\n\
+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 for_click = 0;
+ struct gcpro gcpro1;
+
+ if (! NILP (position))
+ {
+ check_x ();
+
+ /* Decode the first argument: find the window and the coordinates. */
+ if (EQ (position, Qt)
+ || (CONSP (position) && EQ (XCONS (position)->car, Qmenu_bar)))
+ {
+ /* Use the mouse's current position. */
+ FRAME_PTR new_f = selected_frame;
+ Lisp_Object bar_window;
+ int part;
+ unsigned long time;
+
+ if (mouse_position_hook)
+ (*mouse_position_hook) (&new_f, 1, &bar_window,
+ &part, &x, &y, &time);
+ if (new_f != 0)
+ XSETFRAME (window, new_f);
+ else
+ {
+ window = selected_window;
+ XSETFASTINT (x, 0);
+ XSETFASTINT (y, 0);
+ }
+ }
+ else
+ {
+ tem = Fcar (position);
+ if (CONSP (tem))
+ {
+ window = Fcar (Fcdr (position));
+ x = Fcar (tem);
+ y = Fcar (Fcdr (tem));
+ }
+ else
+ {
+ for_click = 1;
+ tem = Fcar (Fcdr (position)); /* EVENT_START (position) */
+ window = Fcar (tem); /* POSN_WINDOW (tem) */
+ tem = Fcar (Fcdr (Fcdr (tem))); /* POSN_WINDOW_POSN (tem) */
+ x = Fcar (tem);
+ y = Fcdr (tem);
+ }
+ }
+
+ CHECK_NUMBER (x, 0);
+ CHECK_NUMBER (y, 0);
+
+ /* Decode where to put the menu. */
+
+ if (FRAMEP (window))
+ {
+ f = XFRAME (window);
+ xpos = 0;
+ ypos = 0;
+ }
+ else if (WINDOWP (window))
+ {
+ CHECK_LIVE_WINDOW (window, 0);
+ f = XFRAME (WINDOW_FRAME (XWINDOW (window)));
+
+ xpos = (FONT_WIDTH (f->output_data.x->font) * XWINDOW (window)->left);
+ ypos = (f->output_data.x->line_height * 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 (CONSP (menu))
+ tem = Fkeymapp (Fcar (menu));
+ if (!NILP (keymap))
+ {
+ /* We were given a keymap. Extract menu info from the keymap. */
+ Lisp_Object prompt;
+ keymap = get_keymap (menu);
+
+ /* Extract the detailed info to make one pane. */
+ keymap_panes (&menu, 1, NILP (position));
+
+ /* Search for a string appearing directly as an element of the keymap.
+ That string is the title of the menu. */
+ prompt = map_prompt (keymap);
+
+ /* Make that be the pane title of the first pane. */
+ if (!NILP (prompt) && menu_items_n_panes >= 0)
+ XVECTOR (menu_items)->contents[MENU_ITEMS_PANE_NAME] = prompt;
+
+ keymaps = 1;
+ }
+ else if (!NILP (tem))
+ {
+ /* We were given a list of keymaps. */
+ int nmaps = XFASTINT (Flength (menu));
+ Lisp_Object *maps
+ = (Lisp_Object *) alloca (nmaps * sizeof (Lisp_Object));
+ int i;
+
+ title = Qnil;
+
+ /* The first keymap that has a prompt string
+ supplies the menu title. */
+ for (tem = menu, i = 0; CONSP (tem); tem = Fcdr (tem))
+ {
+ Lisp_Object prompt;
+
+ maps[i++] = keymap = get_keymap (Fcar (tem));
+
+ prompt = map_prompt (keymap);
+ if (NILP (title) && !NILP (prompt))
+ title = prompt;
+ }
+
+ /* Extract the detailed info to make one pane. */
+ keymap_panes (maps, nmaps, NILP (position));
+
+ /* Make the title be the pane title of the first pane. */
+ if (!NILP (title) && menu_items_n_panes >= 0)
+ XVECTOR (menu_items)->contents[MENU_ITEMS_PANE_NAME] = title;
+
+ keymaps = 1;
+ }
+ else
+ {
+ /* We were given an old-fashioned menu. */
+ title = Fcar (menu);
+ CHECK_STRING (title, 1);
+
+ list_of_panes (Fcdr (menu));
+
+ keymaps = 0;
+ }
+
+ if (NILP (position))
+ {
+ discard_menu_items ();
+ UNGCPRO;
+ return Qnil;
+ }
+
+ /* 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;
+
+ 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.\n\n\
+An ITEM may also be just a string--that makes a nonselectable item.\n\
+An ITEM may also be nil--that means to put all preceding items\n\
+on the left of the dialog box and all following items on the right.\n\
+\(By default, approximately half appear on each side.)")
+ (position, contents)
+ Lisp_Object position, contents;
+{
+ FRAME_PTR f;
+ Lisp_Object window;
+
+ check_x ();
+
+ /* Decode the first argument: find the window or frame to use. */
+ if (EQ (position, Qt)
+ || (CONSP (position) && EQ (XCONS (position)->car, Qmenu_bar)))
+ {
+#if 0 /* Using the frame the mouse is on may not be right. */
+ /* Use the mouse's current position. */
+ FRAME_PTR new_f = selected_frame;
+ Lisp_Object bar_window;
+ int part;
+ unsigned long time;
+ Lisp_Object x, y;
+
+ (*mouse_position_hook) (&new_f, 1, &bar_window, &part, &x, &y, &time);
+
+ if (new_f != 0)
+ XSETFRAME (window, new_f);
+ else
+ window = selected_window;
+#endif
+ window = selected_window;
+ }
+ else if (CONSP (position))
+ {
+ Lisp_Object tem;
+ tem = Fcar (position);
+ if (CONSP (tem))
+ window = Fcar (Fcdr (position));
+ else
+ {
+ tem = Fcar (Fcdr (position)); /* EVENT_START (position) */
+ window = Fcar (tem); /* POSN_WINDOW (tem) */
+ }
+ }
+ else if (WINDOWP (position) || FRAMEP (position))
+ window = position;
+
+ /* Decode where to put the menu. */
+
+ if (FRAMEP (window))
+ f = XFRAME (window);
+ else if (WINDOWP (window))
+ {
+ CHECK_LIVE_WINDOW (window, 0);
+ f = XFRAME (WINDOW_FRAME (XWINDOW (window)));
+ }
+ else
+ /* ??? Not really clean; should be CHECK_WINDOW_OR_FRAME,
+ but I don't want to make one now. */
+ CHECK_WINDOW (window, 0);
+
+#ifndef USE_X_TOOLKIT
+ /* Display a menu with these alternatives
+ in the middle of frame F. */
+ {
+ Lisp_Object x, y, frame, newpos;
+ XSETFRAME (frame, f);
+ XSETINT (x, x_pixel_width (f) / 2);
+ XSETINT (y, x_pixel_height (f) / 2);
+ newpos = Fcons (Fcons (x, Fcons (y, Qnil)), Fcons (frame, Qnil));
+
+ return Fx_popup_menu (newpos,
+ Fcons (Fcar (contents), Fcons (contents, Qnil)));
+ }
+#else
+ {
+ Lisp_Object title;
+ char *error_name;
+ Lisp_Object selection;
+
+ /* Decode the dialog items from what was specified. */
+ title = Fcar (contents);
+ CHECK_STRING (title, 1);
+
+ list_of_panes (Fcons (contents, Qnil));
+
+ /* Display them in a dialog box. */
+ BLOCK_INPUT;
+ selection = xdialog_show (f, 0, title, &error_name);
+ UNBLOCK_INPUT;
+
+ discard_menu_items ();
+
+ if (error_name) error (error_name);
+ return selection;
+ }
+#endif
+}
+\f
+#ifdef USE_X_TOOLKIT
+
+/* Loop in Xt until the menu pulldown or dialog popup has been
+ popped down (deactivated).
+
+ NOTE: All calls to popup_get_selection should be protected
+ with BLOCK_INPUT, UNBLOCK_INPUT wrappers. */
+
+void
+popup_get_selection (initial_event, dpyinfo, id)
+ XEvent *initial_event;
+ struct x_display_info *dpyinfo;
+ LWLIB_ID id;
+{
+ XEvent event;
+
+ /* Define a queue to save up for later unreading
+ all X events that don't pertain to the menu. */
+ struct event_queue
+ {
+ XEvent event;
+ struct event_queue *next;
+ };
+
+ struct event_queue *queue = NULL;
+ struct event_queue *queue_tmp;
+
+ if (initial_event)
+ event = *initial_event;
+ else
+ XtAppNextEvent (Xt_app_con, &event);
+
+ while (1)
+ {
+ /* Handle expose events for editor frames right away. */
+ if (event.type == Expose)
+ process_expose_from_menu (event);
+ /* Make sure we don't consider buttons grabbed after menu goes. */
+ else if (event.type == ButtonRelease
+ && dpyinfo->display == event.xbutton.display)
+ dpyinfo->grabbed &= ~(1 << event.xbutton.button);
+ /* If the user presses a key, deactivate the menu.
+ The user is likely to do that if we get wedged. */
+ else if (event.type == KeyPress
+ && dpyinfo->display == event.xbutton.display)
+ {
+ popup_activated_flag = 0;
+ break;
+ }
+
+ /* Queue all events not for this popup,
+ except for Expose, which we've already handled.
+ Note that the X window is associated with the frame if this
+ is a menu bar popup, but not if it's a dialog box. So we use
+ x_non_menubar_window_to_frame, not x_any_window_to_frame. */
+ if (event.type != Expose
+ && (event.xany.display != dpyinfo->display
+ || x_non_menubar_window_to_frame (dpyinfo, event.xany.window)))
+ {
+ queue_tmp = (struct event_queue *) malloc (sizeof (struct event_queue));
+
+ if (queue_tmp != NULL)
+ {
+ queue_tmp->event = event;
+ queue_tmp->next = queue;
+ queue = queue_tmp;
+ }
+ }
+ else
+ XtDispatchEvent (&event);
+
+ if (!popup_activated ())
+ break;
+ XtAppNextEvent (Xt_app_con, &event);
+ }
+
+ /* Unread any events that we got but did not handle. */
+ while (queue != NULL)
+ {
+ queue_tmp = queue;
+ XPutBackEvent (queue_tmp->event.xany.display, &queue_tmp->event);
+ queue = queue_tmp->next;
+ free ((char *)queue_tmp);
+ /* Cause these events to get read as soon as we UNBLOCK_INPUT. */
+ interrupt_input_pending = 1;
+ }
+}
+
+/* Activate the menu bar of frame F.
+ This is called from keyboard.c when it gets the
+ menu_bar_activate_event out of the Emacs event queue.
+
+ To activate the menu bar, we use the X button-press event
+ that was saved in saved_button_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. */
+
+x_activate_menubar (f)
+ FRAME_PTR f;
+{
+ if (f->output_data.x->saved_button_event->type != ButtonPress)
+ return;
+
+ set_frame_menubar (f, 0, 1);
+
+ BLOCK_INPUT;
+ XtDispatchEvent ((XEvent *) f->output_data.x->saved_button_event);
+ UNBLOCK_INPUT;
+
+ /* Ignore this if we get it a second time. */
+ f->output_data.x->saved_button_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. */
+
+static void
+popup_activate_callback (widget, id, client_data)
+ Widget widget;
+ LWLIB_ID id;
+ XtPointer client_data;
+{
+ popup_activated_flag = 1;
+}
+
+/* This callback is called from the menu bar pulldown menu
+ when the user makes a selection.
+ Figure out what the user chose
+ and put the appropriate events into the keyboard buffer. */
+
+static void
+menubar_selection_callback (widget, id, client_data)
+ Widget widget;
+ LWLIB_ID id;
+ XtPointer client_data;
+{
+ Lisp_Object prefix, entry;
+ FRAME_PTR f = menubar_id_to_frame (id);
+ Lisp_Object vector;
+ Lisp_Object *subprefix_stack;
+ int submenu_depth = 0;
+ int i;
+
+ if (!f)
+ return;
+ subprefix_stack = (Lisp_Object *) alloca (f->menu_bar_items_used * sizeof (Lisp_Object));
+ vector = f->menu_bar_vector;
+ prefix = Qnil;
+ i = 0;
+ while (i < f->menu_bar_items_used)
+ {
+ if (EQ (XVECTOR (vector)->contents[i], Qnil))
+ {
+ subprefix_stack[submenu_depth++] = prefix;
+ prefix = entry;
+ i++;
+ }
+ else if (EQ (XVECTOR (vector)->contents[i], Qlambda))
+ {
+ prefix = subprefix_stack[--submenu_depth];
+ i++;
+ }
+ else if (EQ (XVECTOR (vector)->contents[i], Qt))
+ {
+ prefix = XVECTOR (vector)->contents[i + MENU_ITEMS_PANE_PREFIX];
+ i += MENU_ITEMS_PANE_LENGTH;
+ }
+ else
+ {
+ entry = XVECTOR (vector)->contents[i + MENU_ITEMS_ITEM_VALUE];
+ /* The EMACS_INT cast avoids a warning. There's no problem
+ as long as pointers have enough bits to hold small integers. */
+ if ((int) (EMACS_INT) client_data == i)
+ {
+ int j;
+ struct input_event buf;
+ Lisp_Object frame;
+
+ XSETFRAME (frame, f);
+ buf.kind = menu_bar_event;
+ buf.frame_or_window = Fcons (frame, Fcons (Qmenu_bar, Qnil));
+ kbd_buffer_store_event (&buf);
+
+ for (j = 0; j < submenu_depth; j++)
+ if (!NILP (subprefix_stack[j]))
+ {
+ buf.kind = menu_bar_event;
+ buf.frame_or_window = Fcons (frame, subprefix_stack[j]);
+ kbd_buffer_store_event (&buf);
+ }
+
+ if (!NILP (prefix))
+ {
+ buf.kind = menu_bar_event;
+ buf.frame_or_window = Fcons (frame, prefix);
+ kbd_buffer_store_event (&buf);
+ }
+
+ buf.kind = menu_bar_event;
+ buf.frame_or_window = Fcons (frame, entry);
+ kbd_buffer_store_event (&buf);
+
+ return;
+ }
+ i += MENU_ITEMS_ITEM_LENGTH;
+ }
+ }
+}
+
+/* This callback is invoked when a dialog or menu is finished being
+ used and has been unposted. */
+
+static void
+popup_deactivate_callback (widget, id, client_data)
+ Widget widget;
+ LWLIB_ID id;
+ XtPointer client_data;
+{
+ popup_activated_flag = 0;
+}
+
+
+/* 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;
+}
+\f
+/* Return a tree of widget_value structures for a menu bar item
+ whose event type is ITEM_KEY (with string ITEM_NAME)
+ and whose contents come from the list of keymaps MAPS. */
+
+static widget_value *
+single_submenu (item_key, item_name, maps)
+ Lisp_Object item_key, item_name, maps;
+{
+ widget_value *wv, *prev_wv, *save_wv, *first_wv;
+ int i;
+ int submenu_depth = 0;
+ Lisp_Object length;
+ int len;
+ Lisp_Object *mapvec;
+ widget_value **submenu_stack;
+ int mapno;
+ int previous_items = menu_items_used;
+ int top_level_items = 0;
+
+ length = Flength (maps);
+ len = XINT (length);
+
+ /* Convert the list MAPS into a vector MAPVEC. */
+ mapvec = (Lisp_Object *) alloca (len * sizeof (Lisp_Object));
+ for (i = 0; i < len; i++)
+ {
+ mapvec[i] = Fcar (maps);
+ maps = Fcdr (maps);
+ }
+
+ menu_items_n_panes = 0;
+
+ /* Loop over the given keymaps, making a pane for each map.
+ But don't make a pane that is empty--ignore that map instead. */
+ for (i = 0; i < len; i++)
+ {
+ if (SYMBOLP (mapvec[i]))
+ {
+ top_level_items = 1;
+ push_menu_pane (Qnil, Qnil);
+ push_menu_item (item_name, Qt, item_key, mapvec[i], Qnil);
+ }
+ else
+ single_keymap_panes (mapvec[i], item_name, item_key, 0);
+ }
+
+ /* Create a tree of widget_value objects
+ representing the panes and their items. */
+
+ submenu_stack
+ = (widget_value **) alloca (menu_items_used * sizeof (widget_value *));
+ wv = malloc_widget_value ();
+ wv->name = "menu";
+ wv->value = 0;
+ wv->enabled = 1;
+ first_wv = wv;
+ save_wv = 0;
+ prev_wv = 0;
+
+ /* Loop over all panes and items made during this call
+ and construct a tree of widget_value objects.
+ Ignore the panes and items made by previous calls to
+ single_submenu, even though those are also in menu_items. */
+ i = previous_items;
+ while (i < menu_items_used)
+ {
+ if (EQ (XVECTOR (menu_items)->contents[i], Qnil))
+ {
+ submenu_stack[submenu_depth++] = save_wv;
+ save_wv = prev_wv;
+ prev_wv = 0;
+ i++;
+ }
+ else if (EQ (XVECTOR (menu_items)->contents[i], Qlambda))
+ {
+ prev_wv = save_wv;
+ save_wv = submenu_stack[--submenu_depth];
+ i++;
+ }
+ else if (EQ (XVECTOR (menu_items)->contents[i], Qt)
+ && submenu_depth != 0)
+ i += MENU_ITEMS_PANE_LENGTH;
+ /* Ignore a nil in the item list.
+ It's meaningful only for dialog boxes. */
+ else if (EQ (XVECTOR (menu_items)->contents[i], Qquote))
+ i += 1;
+ else if (EQ (XVECTOR (menu_items)->contents[i], Qt))
+ {
+ /* Create a new pane. */
+ Lisp_Object pane_name, prefix;
+ char *pane_string;
+ pane_name = XVECTOR (menu_items)->contents[i + MENU_ITEMS_PANE_NAME];
+ prefix = XVECTOR (menu_items)->contents[i + MENU_ITEMS_PANE_PREFIX];
+ pane_string = (NILP (pane_name)
+ ? "" : (char *) XSTRING (pane_name)->data);
+ /* If there is just one top-level pane, put all its items directly
+ under the top-level menu. */
+ if (menu_items_n_panes == 1)
+ pane_string = "";
+
+ /* If the pane has a meaningful name,
+ make the pane a top-level menu item
+ with its items as a submenu beneath it. */
+ if (strcmp (pane_string, ""))
+ {
+ wv = malloc_widget_value ();
+ if (save_wv)
+ save_wv->next = wv;
+ else
+ first_wv->contents = wv;
+ wv->name = pane_string;
+ /* Ignore the @ that means "separate pane".
+ This is a kludge, but this isn't worth more time. */
+ if (!NILP (prefix) && wv->name[0] == '@')
+ wv->name++;
+ wv->value = 0;
+ wv->enabled = 1;
+ }
+ save_wv = wv;
+ prev_wv = 0;
+ i += MENU_ITEMS_PANE_LENGTH;
+ }
+ else
+ {
+ /* Create a new item within current pane. */
+ Lisp_Object item_name, enable, descrip, def;
+ item_name = XVECTOR (menu_items)->contents[i + MENU_ITEMS_ITEM_NAME];
+ enable = XVECTOR (menu_items)->contents[i + MENU_ITEMS_ITEM_ENABLE];
+ descrip
+ = XVECTOR (menu_items)->contents[i + MENU_ITEMS_ITEM_EQUIV_KEY];
+ def = XVECTOR (menu_items)->contents[i + MENU_ITEMS_ITEM_DEFINITION];
+
+ wv = malloc_widget_value ();
+ if (prev_wv)
+ prev_wv->next = wv;
+ else
+ save_wv->contents = wv;
+
+ wv->name = (char *) XSTRING (item_name)->data;
+ if (!NILP (descrip))
+ wv->key = (char *) XSTRING (descrip)->data;
+ wv->value = 0;
+ /* The EMACS_INT cast avoids a warning. There's no problem
+ as long as pointers have enough bits to hold small integers. */
+ wv->call_data = (!NILP (def) ? (void *) (EMACS_INT) i : 0);
+ wv->enabled = !NILP (enable);
+ prev_wv = wv;
+
+ i += MENU_ITEMS_ITEM_LENGTH;
+ }
+ }
+
+ /* If we have just one "menu item"
+ that was originally a button, return it by itself. */
+ if (top_level_items && first_wv->contents && first_wv->contents->next == 0)
+ {
+ wv = first_wv->contents;
+ free_widget_value (first_wv);
+ return wv;
+ }
+
+ return first_wv;
+}
+\f
+extern void EmacsFrameSetCharSize ();
+
+/* Recompute all the widgets of frame F, when the menu bar
+ has been changed. */
+
+static void
+update_frame_menubar (f)
+ FRAME_PTR f;
+{
+ struct x_output *x = f->output_data.x;
+ int columns, rows;
+ int menubar_changed;
+
+ Dimension shell_height;
+
+ /* We assume the menubar contents has changed if the global flag is set,
+ or if the current buffer has changed, or if the menubar has never
+ been updated before.
+ */
+ menubar_changed = (x->menubar_widget
+ && !XtIsManaged (x->menubar_widget));
+
+ if (! (menubar_changed))
+ return;
+
+ BLOCK_INPUT;
+ /* Save the size of the frame because the pane widget doesn't accept to
+ resize itself. So force it. */
+ columns = f->width;
+ rows = f->height;
+
+ /* Do the voodoo which means "I'm changing lots of things, don't try to
+ refigure sizes until I'm done." */
+ lw_refigure_widget (x->column_widget, False);
+
+ /* the order in which children are managed is the top to
+ bottom order in which they are displayed in the paned window.
+ First, remove the text-area widget.
+ */
+ XtUnmanageChild (x->edit_widget);
+
+ /* remove the menubar that is there now, and put up the menubar that
+ should be there.
+ */
+ if (menubar_changed)
+ {
+ XtManageChild (x->menubar_widget);
+ XtMapWidget (x->menubar_widget);
+ XtVaSetValues (x->menubar_widget, XtNmappedWhenManaged, 1, 0);
+ }
+
+ /* Re-manage the text-area widget, and then thrash the sizes. */
+ XtManageChild (x->edit_widget);
+ lw_refigure_widget (x->column_widget, True);
+
+ /* Force the pane widget to resize itself with the right values. */
+ EmacsFrameSetCharSize (x->edit_widget, columns, rows);
+
+ UNBLOCK_INPUT;
+}
+
+/* Set the contents of the menubar widgets of frame F.
+ The argument FIRST_TIME is currently ignored;
+ it is set the first time this is called, from initialize_frame_menubar. */
+
+void
+set_frame_menubar (f, first_time, deep_p)
+ FRAME_PTR f;
+ int first_time;
+ int deep_p;
+{
+ Widget menubar_widget = f->output_data.x->menubar_widget;
+ Lisp_Object tail, items, frame;
+ widget_value *wv, *first_wv, *prev_wv = 0;
+ int i;
+ LWLIB_ID id;
+
+ if (f->output_data.x->id == 0)
+ f->output_data.x->id = next_menubar_widget_id++;
+ id = f->output_data.x->id;
+
+ if (! menubar_widget)
+ deep_p = 1;
+
+ wv = malloc_widget_value ();
+ wv->name = "menubar";
+ wv->value = 0;
+ wv->enabled = 1;
+ first_wv = wv;
+
+ if (deep_p)
+ {
+ /* Make a widget-value tree representing the entire menu trees. */
+
+ struct buffer *prev = current_buffer;
+ Lisp_Object buffer;
+ int specpdl_count = specpdl_ptr - specpdl;
+ int previous_menu_items_used = f->menu_bar_items_used;
+ Lisp_Object *previous_items
+ = (Lisp_Object *) alloca (previous_menu_items_used
+ * sizeof (Lisp_Object));
+
+ 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 (Fstore_match_data, Fmatch_data ());
+ if (NILP (Voverriding_local_map_menu_flag))
+ {
+ specbind (Qoverriding_terminal_local_map, Qnil);
+ specbind (Qoverriding_local_map, Qnil);
+ }
+
+ set_buffer_internal_1 (XBUFFER (buffer));
+
+ /* Run the Lucid hook. */
+ call1 (Vrun_hooks, Qactivate_menubar_hook);
+ /* If it has changed current-menubar from previous value,
+ really recompute the menubar from the value. */
+ if (! NILP (Vlucid_menu_bar_dirty_flag))
+ call0 (Qrecompute_lucid_menubar);
+ call1 (Vrun_hooks, Qmenu_bar_update_hook);
+ FRAME_MENU_BAR_ITEMS (f) = menu_bar_items (FRAME_MENU_BAR_ITEMS (f));
+
+ items = FRAME_MENU_BAR_ITEMS (f);
+
+ inhibit_garbage_collection ();
+
+ /* Save the frame's previous menu bar contents data. */
+ bcopy (XVECTOR (f->menu_bar_vector)->contents, previous_items,
+ previous_menu_items_used * sizeof (Lisp_Object));
+
+ /* Fill in the current menu bar contents. */
+ menu_items = f->menu_bar_vector;
+ menu_items_allocated = XVECTOR (menu_items)->size;
+ init_menu_items ();
+ for (i = 0; i < XVECTOR (items)->size; i += 3)
+ {
+ Lisp_Object key, string, maps;
+
+ key = XVECTOR (items)->contents[i];
+ string = XVECTOR (items)->contents[i + 1];
+ maps = XVECTOR (items)->contents[i + 2];
+ if (NILP (string))
+ break;
+
+ wv = single_submenu (key, string, maps);
+ if (prev_wv)
+ prev_wv->next = wv;
+ else
+ first_wv->contents = wv;
+ /* Don't set wv->name here; GC during the loop might relocate it. */
+ wv->enabled = 1;
+ prev_wv = wv;
+ }
+
+ finish_menu_items ();
+
+ set_buffer_internal_1 (prev);
+ unbind_to (specpdl_count, Qnil);
+
+ /* If there has been no change in the Lisp-level contents
+ of the menu bar, skip redisplaying it. Just exit. */
+
+ for (i = 0; i < previous_menu_items_used; i++)
+ if (menu_items_used == i
+ || (previous_items[i] != XVECTOR (menu_items)->contents[i]))
+ break;
+ if (i == menu_items_used && i == previous_menu_items_used)
+ {
+ free_menubar_widget_value_tree (first_wv);
+ menu_items = Qnil;
+
+ return;
+ }
+
+ /* Now GC cannot happen during the lifetime of the widget_value,
+ so it's safe to store data from a Lisp_String. */
+ wv = first_wv->contents;
+ for (i = 0; i < XVECTOR (items)->size; i += 3)
+ {
+ Lisp_Object string;
+ string = XVECTOR (items)->contents[i + 1];
+ if (NILP (string))
+ break;
+ wv->name = (char *) XSTRING (string)->data;
+ wv = wv->next;
+ }
+
+ f->menu_bar_vector = menu_items;
+ f->menu_bar_items_used = menu_items_used;
+ menu_items = Qnil;
+ }
+ else
+ {
+ /* Make a widget-value tree containing
+ just the top level menu bar strings. */
+
+ items = FRAME_MENU_BAR_ITEMS (f);
+ for (i = 0; i < XVECTOR (items)->size; i += 3)
+ {
+ Lisp_Object string;
+
+ string = XVECTOR (items)->contents[i + 1];
+ if (NILP (string))
+ break;
+
+ wv = malloc_widget_value ();
+ wv->name = (char *) XSTRING (string)->data;
+ wv->value = 0;
+ wv->enabled = 1;
+
+ if (prev_wv)
+ prev_wv->next = wv;
+ else
+ first_wv->contents = wv;
+ prev_wv = wv;
+ }
+ }
+
+ /* Create or update the menu bar widget. */
+
+ BLOCK_INPUT;
+
+ if (menubar_widget)
+ {
+ /* Disable resizing (done for Motif!) */
+ lw_allow_resizing (f->output_data.x->widget, False);
+
+ /* The third arg is DEEP_P, which says to consider the entire
+ menu trees we supply, rather than just the menu bar item names. */
+ lw_modify_all_widgets (id, first_wv, deep_p);
+
+ /* Re-enable the edit widget to resize. */
+ lw_allow_resizing (f->output_data.x->widget, True);
+ }
+ else
+ {
+ menubar_widget = lw_create_widget ("menubar", "menubar", id, first_wv,
+ f->output_data.x->column_widget,
+ 0,
+ popup_activate_callback,
+ menubar_selection_callback,
+ popup_deactivate_callback);
+ f->output_data.x->menubar_widget = menubar_widget;
+ }
+
+ {
+ int menubar_size
+ = (f->output_data.x->menubar_widget
+ ? (f->output_data.x->menubar_widget->core.height
+ + f->output_data.x->menubar_widget->core.border_width)
+ : 0);
+
+ if (FRAME_EXTERNAL_MENU_BAR (f))
+ {
+ Dimension ibw = 0;
+ XtVaGetValues (f->output_data.x->column_widget,
+ XtNinternalBorderWidth, &ibw, NULL);
+ menubar_size += ibw;
+ }
+
+ f->output_data.x->menubar_height = menubar_size;
+ }
+
+ free_menubar_widget_value_tree (first_wv);
+
+ update_frame_menubar (f);
+
+ 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;
+{
+ /* 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. */
+
+void
+free_frame_menubar (f)
+ FRAME_PTR f;
+{
+ Widget menubar_widget;
+ int id;
+
+ menubar_widget = f->output_data.x->menubar_widget;
+
+ if (menubar_widget)
+ {
+ BLOCK_INPUT;
+ lw_destroy_all_widgets ((LWLIB_ID) f->output_data.x->id);
+ UNBLOCK_INPUT;
+ }
+}
+
+#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.
+ FOR_CLICK 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.) */
+
+#ifdef USE_X_TOOLKIT
+
+/* We need a unique id for each widget handled by the Lucid Widget
+ library.
+
+ For the main windows, and popup menus, we use this counter,
+ which we increment each time after use. This starts from 1<<16.
+
+ For menu bars, we use numbers starting at 0, counted in
+ next_menubar_widget_id. */
+LWLIB_ID widget_id_tick;
+
+#ifdef __STDC__
+static Lisp_Object *volatile menu_item_selection;
+#else
+static Lisp_Object *menu_item_selection;
+#endif
+
+static void
+popup_selection_callback (widget, id, client_data)
+ Widget widget;
+ LWLIB_ID id;
+ XtPointer client_data;
+{
+ menu_item_selection = (Lisp_Object *) client_data;
+}
+
+static Lisp_Object
+xmenu_show (f, x, y, for_click, keymaps, title, error)
+ FRAME_PTR f;
+ int x;
+ int y;
+ int for_click;
+ int keymaps;
+ Lisp_Object title;
+ char **error;
+{
+ int i;
+ LWLIB_ID menu_id;
+ Widget menu;
+ Arg av[2];
+ int ac = 0;
+ widget_value *wv, *save_wv = 0, *first_wv = 0, *prev_wv = 0;
+ widget_value **submenu_stack
+ = (widget_value **) alloca (menu_items_used * sizeof (widget_value *));
+ Lisp_Object *subprefix_stack
+ = (Lisp_Object *) alloca (menu_items_used * sizeof (Lisp_Object));
+ int submenu_depth = 0;
+ XButtonPressedEvent dummy;
+
+ int first_pane;
+ int next_release_must_exit = 0;
+
+ *error = NULL;
+
+ if (menu_items_used <= MENU_ITEMS_PANE_LENGTH)
+ {
+ *error = "Empty menu";
+ return Qnil;
+ }
+
+ /* Create a tree of widget_value objects
+ representing the panes and their items. */
+ wv = malloc_widget_value ();
+ wv->name = "menu";
+ wv->value = 0;
+ wv->enabled = 1;
+ first_wv = wv;
+ first_pane = 1;
+
+ /* Loop over all panes and items, filling in the tree. */
+ i = 0;
+ while (i < menu_items_used)
+ {
+ if (EQ (XVECTOR (menu_items)->contents[i], Qnil))
+ {
+ submenu_stack[submenu_depth++] = save_wv;
+ save_wv = prev_wv;
+ prev_wv = 0;
+ first_pane = 1;
+ i++;
+ }
+ else if (EQ (XVECTOR (menu_items)->contents[i], Qlambda))
+ {
+ prev_wv = save_wv;
+ save_wv = submenu_stack[--submenu_depth];
+ first_pane = 0;
+ i++;
+ }
+ else if (EQ (XVECTOR (menu_items)->contents[i], Qt)
+ && submenu_depth != 0)
+ i += MENU_ITEMS_PANE_LENGTH;
+ /* Ignore a nil in the item list.
+ It's meaningful only for dialog boxes. */
+ else if (EQ (XVECTOR (menu_items)->contents[i], Qquote))
+ i += 1;
+ else if (EQ (XVECTOR (menu_items)->contents[i], Qt))
+ {
+ /* Create a new pane. */
+ Lisp_Object pane_name, prefix;
+ char *pane_string;
+ pane_name = XVECTOR (menu_items)->contents[i + MENU_ITEMS_PANE_NAME];
+ prefix = XVECTOR (menu_items)->contents[i + MENU_ITEMS_PANE_PREFIX];
+ pane_string = (NILP (pane_name)
+ ? "" : (char *) XSTRING (pane_name)->data);
+ /* If there is just one top-level pane, put all its items directly
+ under the top-level menu. */
+ if (menu_items_n_panes == 1)
+ pane_string = "";
+
+ /* If the pane has a meaningful name,
+ make the pane a top-level menu item
+ with its items as a submenu beneath it. */
+ if (!keymaps && strcmp (pane_string, ""))
+ {
+ wv = 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;
+ }
+ else if (first_pane)
+ {
+ save_wv = wv;
+ prev_wv = 0;
+ }
+ first_pane = 0;
+ i += MENU_ITEMS_PANE_LENGTH;
+ }
+ else
+ {
+ /* Create a new item within current pane. */
+ Lisp_Object item_name, enable, descrip, def;
+ item_name = XVECTOR (menu_items)->contents[i + MENU_ITEMS_ITEM_NAME];
+ enable = XVECTOR (menu_items)->contents[i + MENU_ITEMS_ITEM_ENABLE];
+ descrip
+ = XVECTOR (menu_items)->contents[i + MENU_ITEMS_ITEM_EQUIV_KEY];
+ def = XVECTOR (menu_items)->contents[i + MENU_ITEMS_ITEM_DEFINITION];
+
+ wv = malloc_widget_value ();
+ if (prev_wv)
+ prev_wv->next = wv;
+ else
+ save_wv->contents = wv;
+ wv->name = (char *) XSTRING (item_name)->data;
+ if (!NILP (descrip))
+ wv->key = (char *) XSTRING (descrip)->data;
+ wv->value = 0;
+ /* If this item has a null value,
+ make the call_data null so that it won't display a box
+ when the mouse is on it. */
+ wv->call_data
+ = (!NILP (def) ? (void *) &XVECTOR (menu_items)->contents[i] : 0);
+ wv->enabled = !NILP (enable);
+ prev_wv = wv;
+
+ i += MENU_ITEMS_ITEM_LENGTH;
+ }
+ }
+
+ /* Deal with the title, if it is non-nil. */
+ if (!NILP (title))
+ {
+ widget_value *wv_title = malloc_widget_value ();
+ widget_value *wv_sep1 = malloc_widget_value ();
+ widget_value *wv_sep2 = malloc_widget_value ();
+
+ wv_sep2->name = "--";
+ wv_sep2->next = first_wv->contents;
+
+ wv_sep1->name = "--";
+ wv_sep1->next = wv_sep2;
+
+ wv_title->name = (char *) XSTRING (title)->data;
+ wv_title->enabled = True;
+ wv_title->next = wv_sep1;
+ first_wv->contents = wv_title;
+ }
+
+ /* Actually create the menu. */
+ menu_id = widget_id_tick++;
+ menu = lw_create_widget ("popup", first_wv->name, menu_id, first_wv,
+ f->output_data.x->widget, 1, 0,
+ popup_selection_callback,
+ popup_deactivate_callback);
+
+ /* Adjust coordinates to relative to the outer (window manager) window. */
+ {
+ Window child;
+ int win_x = 0, win_y = 0;
+
+ /* Find the position of the outside upper-left corner of
+ the inner window, with respect to the outer window. */
+ if (f->output_data.x->parent_desc != FRAME_X_DISPLAY_INFO (f)->root_window)
+ {
+ BLOCK_INPUT;
+ XTranslateCoordinates (FRAME_X_DISPLAY (f),
+
+ /* From-window, to-window. */
+ f->output_data.x->window_desc,
+ f->output_data.x->parent_desc,
+
+ /* From-position, to-position. */
+ 0, 0, &win_x, &win_y,
+
+ /* Child of window. */
+ &child);
+ UNBLOCK_INPUT;
+ x += win_x;
+ y += win_y;
+ }
+ }
+
+ /* Adjust coordinates to be root-window-relative. */
+ x += f->output_data.x->left_pos;
+ y += f->output_data.x->top_pos;
+
+ dummy.type = ButtonPress;
+ dummy.serial = 0;
+ dummy.send_event = 0;
+ dummy.display = FRAME_X_DISPLAY (f);
+ dummy.time = CurrentTime;
+ dummy.button = 0;
+ dummy.root = FRAME_X_DISPLAY_INFO (f)->root_window;
+ dummy.window = dummy.root;
+ dummy.subwindow = dummy.root;
+ dummy.x_root = x;
+ dummy.y_root = y;
+ dummy.x = x;
+ dummy.y = y;
+
+ /* Don't allow any geometry request from the user. */
+ XtSetArg (av[ac], XtNgeometry, 0); ac++;
+ XtSetValues (menu, av, ac);
+
+ /* Free the widget_value objects we used to specify the contents. */
+ free_menubar_widget_value_tree (first_wv);
+
+ /* No selection has been chosen yet. */
+ menu_item_selection = 0;
+
+ /* Display the menu. */
+ lw_popup_menu (menu, &dummy);
+ popup_activated_flag = 1;
+
+ /* Process events that apply to the menu. */
+ popup_get_selection ((XEvent *) 0, FRAME_X_DISPLAY_INFO (f), menu_id);
+
+ /* fp turned off the following statement and wrote a comment
+ that it is unnecessary--that the menu has already disappeared.
+ Nowadays the menu disappears ok, all right, but
+ we need to delete the widgets or multiple ones will pile up. */
+ lw_destroy_all_widgets (menu_id);
+
+ /* Find the selected item, and its pane, to return
+ the proper value. */
+ if (menu_item_selection != 0)
+ {
+ Lisp_Object prefix, entry;
+
+ prefix = Qnil;
+ i = 0;
+ while (i < menu_items_used)
+ {
+ if (EQ (XVECTOR (menu_items)->contents[i], Qnil))
+ {
+ subprefix_stack[submenu_depth++] = prefix;
+ prefix = entry;
+ i++;
+ }
+ else if (EQ (XVECTOR (menu_items)->contents[i], Qlambda))
+ {
+ prefix = subprefix_stack[--submenu_depth];
+ i++;
+ }
+ else if (EQ (XVECTOR (menu_items)->contents[i], Qt))
+ {
+ prefix
+ = XVECTOR (menu_items)->contents[i + MENU_ITEMS_PANE_PREFIX];
+ i += MENU_ITEMS_PANE_LENGTH;
+ }
+ 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;
+}
+\f
+static void
+dialog_selection_callback (widget, id, client_data)
+ Widget widget;
+ LWLIB_ID id;
+ XtPointer client_data;
+{
+ /* The EMACS_INT cast avoids a warning. There's no problem
+ as long as pointers have enough bits to hold small integers. */
+ if ((int) (EMACS_INT) client_data != -1)
+ menu_item_selection = (Lisp_Object *) client_data;
+ BLOCK_INPUT;
+ lw_destroy_all_widgets (id);
+ UNBLOCK_INPUT;
+ popup_activated_flag = 0;
+}
+
+static char * button_names [] = {
+ "button1", "button2", "button3", "button4", "button5",
+ "button6", "button7", "button8", "button9", "button10" };
+
+static Lisp_Object
+xdialog_show (f, keymaps, title, error)
+ FRAME_PTR f;
+ int keymaps;
+ Lisp_Object title;
+ char **error;
+{
+ int i, nb_buttons=0;
+ LWLIB_ID dialog_id;
+ Widget menu;
+ char dialog_name[6];
+
+ widget_value *wv, *save_wv = 0, *first_wv = 0, *prev_wv = 0;
+
+ /* Number of elements seen so far, before boundary. */
+ int left_count = 0;
+ /* 1 means we've seen the boundary between left-hand elts and right-hand. */
+ int boundary_seen = 0;
+
+ *error = NULL;
+
+ if (menu_items_n_panes > 1)
+ {
+ *error = "Multiple panes in dialog box";
+ return Qnil;
+ }
+
+ /* Create a tree of widget_value objects
+ representing the text label and buttons. */
+ {
+ Lisp_Object pane_name, prefix;
+ char *pane_string;
+ pane_name = XVECTOR (menu_items)->contents[MENU_ITEMS_PANE_NAME];
+ prefix = XVECTOR (menu_items)->contents[MENU_ITEMS_PANE_PREFIX];
+ pane_string = (NILP (pane_name)
+ ? "" : (char *) XSTRING (pane_name)->data);
+ prev_wv = 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 (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 >= 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 = (char *) XSTRING (descrip)->data;
+ wv->value = (char *) XSTRING (item_name)->data;
+ wv->call_data = (void *) &XVECTOR (menu_items)->contents[i];
+ wv->enabled = !NILP (enable);
+ prev_wv = wv;
+
+ if (! boundary_seen)
+ left_count++;
+
+ nb_buttons++;
+ i += MENU_ITEMS_ITEM_LENGTH;
+ }
+
+ /* If the boundary was not specified,
+ by default put half on the left and half on the right. */
+ if (! boundary_seen)
+ left_count = nb_buttons - nb_buttons / 2;
+
+ wv = 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';
+ /* Number of buttons to put on the right. */
+ dialog_name[4] = '0' + nb_buttons - left_count;
+ dialog_name[5] = 0;
+ wv->contents = first_wv;
+ first_wv = wv;
+ }
+
+ /* Actually create the dialog. */
+ dialog_id = widget_id_tick++;
+ menu = lw_create_widget (first_wv->name, "dialog", dialog_id, first_wv,
+ f->output_data.x->widget, 1, 0,
+ dialog_selection_callback, 0);
+ lw_modify_all_widgets (dialog_id, first_wv->contents, True);
+ /* Free the widget_value objects we used to specify the contents. */
+ free_menubar_widget_value_tree (first_wv);
+
+ /* No selection has been chosen yet. */
+ menu_item_selection = 0;
+
+ /* Display the menu. */
+ lw_pop_up_all_widgets (dialog_id);
+ popup_activated_flag = 1;
+
+ /* Process events that apply to the menu. */
+ popup_get_selection ((XEvent *) 0, FRAME_X_DISPLAY_INFO (f), dialog_id);
+
+ lw_destroy_all_widgets (dialog_id);
+
+ /* Find the selected item, and its pane, to return
+ the proper value. */
+ if (menu_item_selection != 0)
+ {
+ Lisp_Object prefix;
+
+ prefix = Qnil;
+ i = 0;
+ while (i < menu_items_used)
+ {
+ Lisp_Object entry;
+
+ if (EQ (XVECTOR (menu_items)->contents[i], Qt))
+ {
+ prefix
+ = XVECTOR (menu_items)->contents[i + MENU_ITEMS_PANE_PREFIX];
+ i += MENU_ITEMS_PANE_LENGTH;
+ }
+ else
+ {
+ entry
+ = XVECTOR (menu_items)->contents[i + MENU_ITEMS_ITEM_VALUE];
+ if (menu_item_selection == &XVECTOR (menu_items)->contents[i])
+ {
+ if (keymaps != 0)
+ {
+ entry = Fcons (entry, Qnil);
+ if (!NILP (prefix))
+ entry = Fcons (prefix, entry);
+ }
+ return entry;
+ }
+ i += MENU_ITEMS_ITEM_LENGTH;
+ }
+ }
+ }
+
+ return Qnil;
+}
+#else /* not USE_X_TOOLKIT */
+
+static Lisp_Object
+xmenu_show (f, x, y, for_click, keymaps, title, error)
+ FRAME_PTR f;
+ int x, y;
+ int for_click;
+ int keymaps;
+ Lisp_Object title;
+ char **error;
+{
+ Window root;
+ XMenu *menu;
+ int pane, selidx, lpane, status;
+ Lisp_Object entry, pane_prefix;
+ char *datap;
+ int ulx, uly, width, height;
+ int dispwidth, dispheight;
+ int i, j;
+ int maxwidth;
+ int dummy_int;
+ unsigned int dummy_uint;
+
+ *error = 0;
+ if (menu_items_n_panes == 0)
+ return Qnil;
+
+ if (menu_items_used <= MENU_ITEMS_PANE_LENGTH)
+ {
+ *error = "Empty menu";
+ return Qnil;
+ }
+
+ /* Figure out which root window F is on. */
+ XGetGeometry (FRAME_X_DISPLAY (f), FRAME_X_WINDOW (f), &root,
+ &dummy_int, &dummy_int, &dummy_uint, &dummy_uint,
+ &dummy_uint, &dummy_uint);
+
+ /* Make the menu on that window. */
+ menu = XMenuCreate (FRAME_X_DISPLAY (f), root, "emacs");
+ if (menu == NULL)
+ {
+ *error = "Can't create menu";
+ return Qnil;
+ }
+
+#ifdef HAVE_X_WINDOWS
+ /* Adjust coordinates to relative to the outer (window manager) window. */
+ {
+ Window child;
+ int win_x = 0, win_y = 0;
+
+ /* Find the position of the outside upper-left corner of
+ the inner window, with respect to the outer window. */
+ if (f->output_data.x->parent_desc != FRAME_X_DISPLAY_INFO (f)->root_window)
+ {
+ BLOCK_INPUT;
+ XTranslateCoordinates (FRAME_X_DISPLAY (f),
+
+ /* From-window, to-window. */
+ f->output_data.x->window_desc,
+ f->output_data.x->parent_desc,
+
+ /* From-position, to-position. */
+ 0, 0, &win_x, &win_y,
+
+ /* Child of window. */
+ &child);
+ UNBLOCK_INPUT;
+ x += win_x;
+ y += win_y;
+ }
+ }
+#endif /* HAVE_X_WINDOWS */
+
+ /* Adjust coordinates to be root-window-relative. */
+ x += f->output_data.x->left_pos;
+ y += f->output_data.x->top_pos;
+
+ /* Create all the necessary panes and their items. */
+ i = 0;
+ while (i < menu_items_used)
+ {
+ if (EQ (XVECTOR (menu_items)->contents[i], Qt))
+ {
+ /* Create a new pane. */
+ Lisp_Object pane_name, prefix;
+ char *pane_string;
+
+ pane_name = XVECTOR (menu_items)->contents[i + MENU_ITEMS_PANE_NAME];
+ prefix = XVECTOR (menu_items)->contents[i + MENU_ITEMS_PANE_PREFIX];
+ pane_string = (NILP (pane_name)
+ ? "" : (char *) XSTRING (pane_name)->data);
+ if (keymaps && !NILP (prefix))
+ pane_string++;
+
+ lpane = XMenuAddPane (FRAME_X_DISPLAY (f), menu, pane_string, TRUE);
+ if (lpane == XM_FAILURE)
+ {
+ XMenuDestroy (FRAME_X_DISPLAY (f), menu);
+ *error = "Can't create pane";
+ return Qnil;
+ }
+ i += MENU_ITEMS_PANE_LENGTH;
+
+ /* Find the width of the widest item in this pane. */
+ maxwidth = 0;
+ j = i;
+ while (j < menu_items_used)
+ {
+ Lisp_Object item;
+ item = XVECTOR (menu_items)->contents[j];
+ if (EQ (item, Qt))
+ break;
+ if (NILP (item))
+ {
+ j++;
+ continue;
+ }
+ width = XSTRING (item)->size;
+ if (width > maxwidth)
+ maxwidth = width;
+
+ j += MENU_ITEMS_ITEM_LENGTH;
+ }
+ }
+ /* Ignore a nil in the item list.
+ It's meaningful only for dialog boxes. */
+ else if (EQ (XVECTOR (menu_items)->contents[i], Qquote))
+ i += 1;
+ else
+ {
+ /* Create a new item within current pane. */
+ Lisp_Object item_name, enable, descrip;
+ unsigned char *item_data;
+
+ item_name = XVECTOR (menu_items)->contents[i + MENU_ITEMS_ITEM_NAME];
+ enable = XVECTOR (menu_items)->contents[i + MENU_ITEMS_ITEM_ENABLE];
+ descrip
+ = XVECTOR (menu_items)->contents[i + MENU_ITEMS_ITEM_EQUIV_KEY];
+ if (!NILP (descrip))
+ {
+ int gap = maxwidth - XSTRING (item_name)->size;
+#ifdef C_ALLOCA
+ Lisp_Object spacer;
+ spacer = Fmake_string (make_number (gap), make_number (' '));
+ item_name = concat2 (item_name, spacer);
+ item_name = concat2 (item_name, descrip);
+ item_data = XSTRING (item_name)->data;
+#else
+ /* if alloca is fast, use that to make the space,
+ to reduce gc needs. */
+ item_data
+ = (unsigned char *) alloca (maxwidth
+ + XSTRING (descrip)->size + 1);
+ bcopy (XSTRING (item_name)->data, item_data,
+ XSTRING (item_name)->size);
+ for (j = XSTRING (item_name)->size; j < maxwidth; j++)
+ item_data[j] = ' ';
+ bcopy (XSTRING (descrip)->data, item_data + j,
+ XSTRING (descrip)->size);
+ item_data[j + XSTRING (descrip)->size] = 0;
+#endif
+ }
+ else
+ item_data = XSTRING (item_name)->data;
+
+ if (XMenuAddSelection (FRAME_X_DISPLAY (f),
+ menu, lpane, 0, item_data,
+ !NILP (enable))
+ == XM_FAILURE)
+ {
+ XMenuDestroy (FRAME_X_DISPLAY (f), menu);
+ *error = "Can't add selection to menu";
+ return Qnil;
+ }
+ i += MENU_ITEMS_ITEM_LENGTH;
+ }
+ }
+
+ /* All set and ready to fly. */
+ XMenuRecompute (FRAME_X_DISPLAY (f), menu);
+ dispwidth = DisplayWidth (FRAME_X_DISPLAY (f),
+ XScreenNumberOfScreen (FRAME_X_SCREEN (f)));
+ dispheight = DisplayHeight (FRAME_X_DISPLAY (f),
+ XScreenNumberOfScreen (FRAME_X_SCREEN (f)));
+ x = min (x, dispwidth);
+ y = min (y, dispheight);
+ x = max (x, 1);
+ y = max (y, 1);
+ XMenuLocate (FRAME_X_DISPLAY (f), menu, 0, 0, x, y,
+ &ulx, &uly, &width, &height);
+ if (ulx+width > dispwidth)
+ {
+ x -= (ulx + width) - dispwidth;
+ ulx = dispwidth - width;
+ }
+ if (uly+height > dispheight)
+ {
+ y -= (uly + height) - dispheight;
+ uly = dispheight - height;
+ }
+ if (ulx < 0) x -= ulx;
+ if (uly < 0) y -= uly;
+
+ XMenuSetAEQ (menu, TRUE);
+ XMenuSetFreeze (menu, TRUE);
+ pane = selidx = 0;
+
+ status = XMenuActivate (FRAME_X_DISPLAY (f), menu, &pane, &selidx,
+ x, y, ButtonReleaseMask, &datap);
+
+
+#ifdef HAVE_X_WINDOWS
+ /* Assume the mouse has moved out of the X window.
+ If it has actually moved in, we will get an EnterNotify. */
+ x_mouse_leave (FRAME_X_DISPLAY_INFO (f));
+#endif
+
+ switch (status)
+ {
+ case XM_SUCCESS:
+#ifdef XDEBUG
+ fprintf (stderr, "pane= %d line = %d\n", panes, selidx);
+#endif
+
+ /* Find the item number SELIDX in pane number PANE. */
+ i = 0;
+ while (i < menu_items_used)
+ {
+ if (EQ (XVECTOR (menu_items)->contents[i], Qt))
+ {
+ if (pane == 0)
+ pane_prefix
+ = XVECTOR (menu_items)->contents[i + MENU_ITEMS_PANE_PREFIX];
+ pane--;
+ i += MENU_ITEMS_PANE_LENGTH;
+ }
+ else
+ {
+ if (pane == -1)
+ {
+ if (selidx == 0)
+ {
+ entry
+ = XVECTOR (menu_items)->contents[i + MENU_ITEMS_ITEM_VALUE];
+ if (keymaps != 0)
+ {
+ entry = Fcons (entry, Qnil);
+ if (!NILP (pane_prefix))
+ entry = Fcons (pane_prefix, entry);
+ }
+ break;
+ }
+ selidx--;
+ }
+ i += MENU_ITEMS_ITEM_LENGTH;
+ }
+ }
+ break;
+
+ case XM_FAILURE:
+ *error = "Can't activate menu";
+ case XM_IA_SELECT:
+ case XM_NO_SELECT:
+ entry = Qnil;
+ break;
+ }
+ XMenuDestroy (FRAME_X_DISPLAY (f), menu);
+
+#ifdef HAVE_X_WINDOWS
+ /* State that no mouse buttons are now held.
+ (The oldXMenu code doesn't track this info for us.)
+ That is not necessarily true, but the fiction leads to reasonable
+ results, and it is a pain to ask which are actually held now. */
+ FRAME_X_DISPLAY_INFO (f)->grabbed = 0;
+#endif
+
+ return entry;
+}
+
+#endif /* not USE_X_TOOLKIT */
+\f
+syms_of_xmenu ()
+{
+ staticpro (&menu_items);
+ menu_items = Qnil;
+
+ Qdebug_on_next_call = intern ("debug-on-next-call");
+ staticpro (&Qdebug_on_next_call);
+
+#ifdef USE_X_TOOLKIT
+ widget_id_tick = (1<<16);
+ next_menubar_widget_id = 1;
+#endif
+
+ defsubr (&Sx_popup_menu);
+ defsubr (&Sx_popup_dialog);
+}
HCoop / bpt / emacs.git / blobdiff