1 /* X Communication module for terminals which understand the X protocol.
2 Copyright (C) 1986, 88, 93, 94, 96, 1999 Free Software Foundation, Inc.
4 This file is part of GNU Emacs.
6 GNU Emacs is free software; you can redistribute it and/or modify
7 it under the terms of the GNU General Public License as published by
8 the Free Software Foundation; either version 2, or (at your option)
11 GNU Emacs is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 GNU General Public License for more details.
16 You should have received a copy of the GNU General Public License
17 along with GNU Emacs; see the file COPYING. If not, write to
18 the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
19 Boston, MA 02111-1307, USA. */
21 /* X pop-up deck-of-cards menu facility for gnuemacs.
23 * Written by Jon Arnold and Roman Budzianowski
24 * Mods and rewrite by Robert Krawitz
28 /* Modified by Fred Pierresteguy on December 93
29 to make the popup menus and menubar use the Xt. */
31 /* Rewritten for clarity and GC protection by rms in Feb 94. */
35 /* On 4.3 this loses if it comes after xterm.h. */
40 #include "termhooks.h"
44 #include "blockinput.h"
52 /* This may include sys/types.h, and that somehow loses
53 if this is not done before the other system files. */
57 /* Load sys/types.h if not already loaded.
58 In some systems loading it twice is suicidal. */
60 #include <sys/types.h>
63 #include "dispextern.h"
66 #undef HAVE_MULTILINGUAL_MENU
69 #include <X11/IntrinsicP.h>
70 #include <X11/CoreP.h>
71 #include <X11/StringDefs.h>
72 #include <X11/Shell.h>
74 #include <X11/Xaw/Paned.h>
75 #endif /* USE_LUCID */
76 #include "../lwlib/lwlib.h"
77 #else /* not USE_X_TOOLKIT */
78 #include "../oldXMenu/XMenu.h"
79 #endif /* not USE_X_TOOLKIT */
80 #endif /* HAVE_X_WINDOWS */
83 #include <Xm/Xm.h> /* for LESSTIF_VERSION */
86 #define min(x,y) (((x) < (y)) ? (x) : (y))
87 #define max(x,y) (((x) > (y)) ? (x) : (y))
94 Lisp_Object Vmenu_updating_frame
;
96 Lisp_Object Qdebug_on_next_call
;
98 extern Lisp_Object Qmenu_bar
;
99 extern Lisp_Object Qmouse_click
, Qevent_kind
;
101 extern Lisp_Object QCtoggle
, QCradio
;
103 extern Lisp_Object Voverriding_local_map
;
104 extern Lisp_Object Voverriding_local_map_menu_flag
;
106 extern Lisp_Object Qoverriding_local_map
, Qoverriding_terminal_local_map
;
108 extern Lisp_Object Qmenu_bar_update_hook
;
111 extern void set_frame_menubar ();
112 extern void process_expose_from_menu ();
113 extern XtAppContext Xt_app_con
;
115 static Lisp_Object
xdialog_show ();
116 void popup_get_selection ();
121 /* Define HAVE_BOXES if meus can handle radio and toggle buttons. */
126 static void push_menu_item
P_ ((Lisp_Object
, Lisp_Object
, Lisp_Object
,
127 Lisp_Object
, Lisp_Object
, Lisp_Object
,
128 Lisp_Object
, Lisp_Object
));
129 static Lisp_Object
xmenu_show ();
130 static void keymap_panes ();
131 static void single_keymap_panes ();
132 static void single_menu_item ();
133 static void list_of_panes ();
134 static void list_of_items ();
136 /* This holds a Lisp vector that holds the results of decoding
137 the keymaps or alist-of-alists that specify a menu.
139 It describes the panes and items within the panes.
141 Each pane is described by 3 elements in the vector:
142 t, the pane name, the pane's prefix key.
143 Then follow the pane's items, with 5 elements per item:
144 the item string, the enable flag, the item's value,
145 the definition, and the equivalent keyboard key's description string.
147 In some cases, multiple levels of menus may be described.
148 A single vector slot containing nil indicates the start of a submenu.
149 A single vector slot containing lambda indicates the end of a submenu.
150 The submenu follows a menu item which is the way to reach the submenu.
152 A single vector slot containing quote indicates that the
153 following items should appear on the right of a dialog box.
155 Using a Lisp vector to hold this information while we decode it
156 takes care of protecting all the data from GC. */
158 #define MENU_ITEMS_PANE_NAME 1
159 #define MENU_ITEMS_PANE_PREFIX 2
160 #define MENU_ITEMS_PANE_LENGTH 3
164 MENU_ITEMS_ITEM_NAME
= 0,
165 MENU_ITEMS_ITEM_ENABLE
,
166 MENU_ITEMS_ITEM_VALUE
,
167 MENU_ITEMS_ITEM_EQUIV_KEY
,
168 MENU_ITEMS_ITEM_DEFINITION
,
169 MENU_ITEMS_ITEM_TYPE
,
170 MENU_ITEMS_ITEM_SELECTED
,
171 MENU_ITEMS_ITEM_HELP
,
172 MENU_ITEMS_ITEM_LENGTH
175 static Lisp_Object menu_items
;
177 /* Number of slots currently allocated in menu_items. */
178 static int menu_items_allocated
;
180 /* This is the index in menu_items of the first empty slot. */
181 static int menu_items_used
;
183 /* The number of panes currently recorded in menu_items,
184 excluding those within submenus. */
185 static int menu_items_n_panes
;
187 /* Current depth within submenus. */
188 static int menu_items_submenu_depth
;
190 /* Flag which when set indicates a dialog or menu has been posted by
191 Xt on behalf of one of the widget sets. */
192 int popup_activated_flag
;
194 static int next_menubar_widget_id
;
196 /* This is set nonzero after the user activates the menu bar, and set
197 to zero again after the menu bars are redisplayed by prepare_menu_bar.
198 While it is nonzero, all calls to set_frame_menubar go deep.
200 I don't understand why this is needed, but it does seem to be
201 needed on Motif, according to Marcus Daniels <marcus@sysc.pdx.edu>. */
203 int pending_menu_activation
;
207 /* Return the frame whose ->output_data.x->id equals ID, or 0 if none. */
209 static struct frame
*
210 menubar_id_to_frame (id
)
213 Lisp_Object tail
, frame
;
216 for (tail
= Vframe_list
; GC_CONSP (tail
); tail
= XCDR (tail
))
219 if (!GC_FRAMEP (frame
))
222 if (!FRAME_WINDOW_P (f
))
224 if (f
->output_data
.x
->id
== id
)
232 /* Initialize the menu_items structure if we haven't already done so.
233 Also mark it as currently empty. */
238 if (NILP (menu_items
))
240 menu_items_allocated
= 60;
241 menu_items
= Fmake_vector (make_number (menu_items_allocated
), Qnil
);
245 menu_items_n_panes
= 0;
246 menu_items_submenu_depth
= 0;
249 /* Call at the end of generating the data in menu_items.
250 This fills in the number of items in the last pane. */
257 /* Call when finished using the data for the current menu
261 discard_menu_items ()
263 /* Free the structure if it is especially large.
264 Otherwise, hold on to it, to save time. */
265 if (menu_items_allocated
> 200)
268 menu_items_allocated
= 0;
272 /* Make the menu_items vector twice as large. */
278 int old_size
= menu_items_allocated
;
281 menu_items_allocated
*= 2;
282 menu_items
= Fmake_vector (make_number (menu_items_allocated
), Qnil
);
283 bcopy (XVECTOR (old
)->contents
, XVECTOR (menu_items
)->contents
,
284 old_size
* sizeof (Lisp_Object
));
287 /* Begin a submenu. */
290 push_submenu_start ()
292 if (menu_items_used
+ 1 > menu_items_allocated
)
295 XVECTOR (menu_items
)->contents
[menu_items_used
++] = Qnil
;
296 menu_items_submenu_depth
++;
304 if (menu_items_used
+ 1 > menu_items_allocated
)
307 XVECTOR (menu_items
)->contents
[menu_items_used
++] = Qlambda
;
308 menu_items_submenu_depth
--;
311 /* Indicate boundary between left and right. */
314 push_left_right_boundary ()
316 if (menu_items_used
+ 1 > menu_items_allocated
)
319 XVECTOR (menu_items
)->contents
[menu_items_used
++] = Qquote
;
322 /* Start a new menu pane in menu_items..
323 NAME is the pane name. PREFIX_VEC is a prefix key for this pane. */
326 push_menu_pane (name
, prefix_vec
)
327 Lisp_Object name
, prefix_vec
;
329 if (menu_items_used
+ MENU_ITEMS_PANE_LENGTH
> menu_items_allocated
)
332 if (menu_items_submenu_depth
== 0)
333 menu_items_n_panes
++;
334 XVECTOR (menu_items
)->contents
[menu_items_used
++] = Qt
;
335 XVECTOR (menu_items
)->contents
[menu_items_used
++] = name
;
336 XVECTOR (menu_items
)->contents
[menu_items_used
++] = prefix_vec
;
339 /* Push one menu item into the current pane. NAME is the string to
340 display. ENABLE if non-nil means this item can be selected. KEY
341 is the key generated by choosing this item, or nil if this item
342 doesn't really have a definition. DEF is the definition of this
343 item. EQUIV is the textual description of the keyboard equivalent
344 for this item (or nil if none). TYPE is the type of this menu
345 item, one of nil, `toggle' or `radio'. */
348 push_menu_item (name
, enable
, key
, def
, equiv
, type
, selected
, help
)
349 Lisp_Object name
, enable
, key
, def
, equiv
, type
, selected
, help
;
351 if (menu_items_used
+ MENU_ITEMS_ITEM_LENGTH
> menu_items_allocated
)
354 XVECTOR (menu_items
)->contents
[menu_items_used
++] = name
;
355 XVECTOR (menu_items
)->contents
[menu_items_used
++] = enable
;
356 XVECTOR (menu_items
)->contents
[menu_items_used
++] = key
;
357 XVECTOR (menu_items
)->contents
[menu_items_used
++] = equiv
;
358 XVECTOR (menu_items
)->contents
[menu_items_used
++] = def
;
359 XVECTOR (menu_items
)->contents
[menu_items_used
++] = type
;
360 XVECTOR (menu_items
)->contents
[menu_items_used
++] = selected
;
361 XVECTOR (menu_items
)->contents
[menu_items_used
++] = help
;
364 /* Look through KEYMAPS, a vector of keymaps that is NMAPS long,
365 and generate menu panes for them in menu_items.
366 If NOTREAL is nonzero,
367 don't bother really computing whether an item is enabled. */
370 keymap_panes (keymaps
, nmaps
, notreal
)
371 Lisp_Object
*keymaps
;
379 /* Loop over the given keymaps, making a pane for each map.
380 But don't make a pane that is empty--ignore that map instead.
381 P is the number of panes we have made so far. */
382 for (mapno
= 0; mapno
< nmaps
; mapno
++)
383 single_keymap_panes (keymaps
[mapno
],
384 map_prompt (keymaps
[mapno
]), Qnil
, notreal
, 10);
386 finish_menu_items ();
389 /* This is a recursive subroutine of keymap_panes.
390 It handles one keymap, KEYMAP.
391 The other arguments are passed along
392 or point to local variables of the previous function.
393 If NOTREAL is nonzero, only check for equivalent key bindings, don't
394 evaluate expressions in menu items and don't make any menu.
396 If we encounter submenus deeper than MAXDEPTH levels, ignore them. */
399 single_keymap_panes (keymap
, pane_name
, prefix
, notreal
, maxdepth
)
401 Lisp_Object pane_name
;
406 Lisp_Object pending_maps
= Qnil
;
407 Lisp_Object tail
, item
;
408 struct gcpro gcpro1
, gcpro2
;
414 push_menu_pane (pane_name
, prefix
);
417 /* Remember index for first item in this pane so we can go back and
418 add a prefix when (if) we see the first button. After that, notbuttons
419 is set to 0, to mark that we have seen a button and all non button
420 items need a prefix. */
421 notbuttons
= menu_items_used
;
424 for (tail
= keymap
; CONSP (tail
); tail
= XCDR (tail
))
426 GCPRO2 (keymap
, pending_maps
);
427 /* Look at each key binding, and if it is a menu item add it
431 single_menu_item (XCAR (item
), XCDR (item
),
432 &pending_maps
, notreal
, maxdepth
, ¬buttons
);
433 else if (VECTORP (item
))
435 /* Loop over the char values represented in the vector. */
436 int len
= XVECTOR (item
)->size
;
438 for (c
= 0; c
< len
; c
++)
440 Lisp_Object character
;
441 XSETFASTINT (character
, c
);
442 single_menu_item (character
, XVECTOR (item
)->contents
[c
],
443 &pending_maps
, notreal
, maxdepth
, ¬buttons
);
449 /* Process now any submenus which want to be panes at this level. */
450 while (!NILP (pending_maps
))
452 Lisp_Object elt
, eltcdr
, string
;
453 elt
= Fcar (pending_maps
);
455 string
= XCAR (eltcdr
);
456 /* We no longer discard the @ from the beginning of the string here.
457 Instead, we do this in xmenu_show. */
458 single_keymap_panes (Fcar (elt
), string
,
459 XCDR (eltcdr
), notreal
, maxdepth
- 1);
460 pending_maps
= Fcdr (pending_maps
);
464 /* This is a subroutine of single_keymap_panes that handles one
466 KEY is a key in a keymap and ITEM is its binding.
467 PENDING_MAPS_PTR points to a list of keymaps waiting to be made into
469 If NOTREAL is nonzero, only check for equivalent key bindings, don't
470 evaluate expressions in menu items and don't make any menu.
471 If we encounter submenus deeper than MAXDEPTH levels, ignore them.
472 NOTBUTTONS_PTR is only used when simulating toggle boxes and radio
473 buttons. It points to variable notbuttons in single_keymap_panes,
474 which keeps track of if we have seen a button in this menu or not. */
477 single_menu_item (key
, item
, pending_maps_ptr
, notreal
, maxdepth
,
479 Lisp_Object key
, item
;
480 Lisp_Object
*pending_maps_ptr
;
481 int maxdepth
, notreal
;
484 Lisp_Object map
, item_string
, enabled
;
485 struct gcpro gcpro1
, gcpro2
;
488 /* Parse the menu item and leave the result in item_properties. */
490 res
= parse_menu_item (item
, notreal
, 0);
493 return; /* Not a menu item. */
495 map
= XVECTOR (item_properties
)->contents
[ITEM_PROPERTY_MAP
];
499 /* We don't want to make a menu, just traverse the keymaps to
500 precompute equivalent key bindings. */
502 single_keymap_panes (map
, Qnil
, key
, 1, maxdepth
- 1);
506 enabled
= XVECTOR (item_properties
)->contents
[ITEM_PROPERTY_ENABLE
];
507 item_string
= XVECTOR (item_properties
)->contents
[ITEM_PROPERTY_NAME
];
509 if (!NILP (map
) && XSTRING (item_string
)->data
[0] == '@')
512 /* An enabled separate pane. Remember this to handle it later. */
513 *pending_maps_ptr
= Fcons (Fcons (map
, Fcons (item_string
, key
)),
519 /* Simulate radio buttons and toggle boxes by putting a prefix in
522 Lisp_Object prefix
= Qnil
;
523 Lisp_Object type
= XVECTOR (item_properties
)->contents
[ITEM_PROPERTY_TYPE
];
527 = XVECTOR (item_properties
)->contents
[ITEM_PROPERTY_SELECTED
];
530 /* The first button. Line up previous items in this menu. */
532 int index
= *notbuttons_ptr
; /* Index for first item this menu. */
535 while (index
< menu_items_used
)
538 = XVECTOR (menu_items
)->contents
[index
+ MENU_ITEMS_ITEM_NAME
];
542 submenu
++; /* Skip sub menu. */
544 else if (EQ (tem
, Qlambda
))
547 submenu
--; /* End sub menu. */
549 else if (EQ (tem
, Qt
))
550 index
+= 3; /* Skip new pane marker. */
551 else if (EQ (tem
, Qquote
))
552 index
++; /* Skip a left, right divider. */
555 if (!submenu
&& XSTRING (tem
)->data
[0] != '\0'
556 && XSTRING (tem
)->data
[0] != '-')
557 XVECTOR (menu_items
)->contents
[index
+ MENU_ITEMS_ITEM_NAME
]
558 = concat2 (build_string (" "), tem
);
559 index
+= MENU_ITEMS_ITEM_LENGTH
;
565 /* Calculate prefix, if any, for this item. */
566 if (EQ (type
, QCtoggle
))
567 prefix
= build_string (NILP (selected
) ? "[ ] " : "[X] ");
568 else if (EQ (type
, QCradio
))
569 prefix
= build_string (NILP (selected
) ? "( ) " : "(*) ");
571 /* Not a button. If we have earlier buttons, then we need a prefix. */
572 else if (!*notbuttons_ptr
&& XSTRING (item_string
)->data
[0] != '\0'
573 && XSTRING (item_string
)->data
[0] != '-')
574 prefix
= build_string (" ");
577 item_string
= concat2 (prefix
, item_string
);
579 #endif /* not HAVE_BOXES */
581 #ifndef USE_X_TOOLKIT
583 /* Indicate visually that this is a submenu. */
584 item_string
= concat2 (item_string
, build_string (" >"));
587 push_menu_item (item_string
, enabled
, key
,
588 XVECTOR (item_properties
)->contents
[ITEM_PROPERTY_DEF
],
589 XVECTOR (item_properties
)->contents
[ITEM_PROPERTY_KEYEQ
],
590 XVECTOR (item_properties
)->contents
[ITEM_PROPERTY_TYPE
],
591 XVECTOR (item_properties
)->contents
[ITEM_PROPERTY_SELECTED
],
592 XVECTOR (item_properties
)->contents
[ITEM_PROPERTY_HELP
]);
595 /* Display a submenu using the toolkit. */
596 if (! (NILP (map
) || NILP (enabled
)))
598 push_submenu_start ();
599 single_keymap_panes (map
, Qnil
, key
, 0, maxdepth
- 1);
605 /* Push all the panes and items of a menu described by the
606 alist-of-alists MENU.
607 This handles old-fashioned calls to x-popup-menu. */
617 for (tail
= menu
; !NILP (tail
); tail
= Fcdr (tail
))
619 Lisp_Object elt
, pane_name
, pane_data
;
621 pane_name
= Fcar (elt
);
622 CHECK_STRING (pane_name
, 0);
623 push_menu_pane (pane_name
, Qnil
);
624 pane_data
= Fcdr (elt
);
625 CHECK_CONS (pane_data
, 0);
626 list_of_items (pane_data
);
629 finish_menu_items ();
632 /* Push the items in a single pane defined by the alist PANE. */
638 Lisp_Object tail
, item
, item1
;
640 for (tail
= pane
; !NILP (tail
); tail
= Fcdr (tail
))
644 push_menu_item (item
, Qnil
, Qnil
, Qt
, Qnil
, Qnil
, Qnil
, Qnil
);
645 else if (NILP (item
))
646 push_left_right_boundary ();
649 CHECK_CONS (item
, 0);
651 CHECK_STRING (item1
, 1);
652 push_menu_item (item1
, Qt
, Fcdr (item
), Qt
, Qnil
, Qnil
, Qnil
, Qnil
);
657 DEFUN ("x-popup-menu", Fx_popup_menu
, Sx_popup_menu
, 2, 2, 0,
658 "Pop up a deck-of-cards menu and return user's selection.\n\
659 POSITION is a position specification. This is either a mouse button event\n\
660 or a list ((XOFFSET YOFFSET) WINDOW)\n\
661 where XOFFSET and YOFFSET are positions in pixels from the top left\n\
662 corner of WINDOW's frame. (WINDOW may be a frame object instead of a window.)\n\
663 This controls the position of the center of the first line\n\
664 in the first pane of the menu, not the top left of the menu as a whole.\n\
665 If POSITION is t, it means to use the current mouse position.\n\
667 MENU is a specifier for a menu. For the simplest case, MENU is a keymap.\n\
668 The menu items come from key bindings that have a menu string as well as\n\
669 a definition; actually, the \"definition\" in such a key binding looks like\n\
670 \(STRING . REAL-DEFINITION). To give the menu a title, put a string into\n\
671 the keymap as a top-level element.\n\n\
672 If REAL-DEFINITION is nil, that puts a nonselectable string in the menu.\n\
673 Otherwise, REAL-DEFINITION should be a valid key binding definition.\n\
675 You can also use a list of keymaps as MENU.\n\
676 Then each keymap makes a separate pane.\n\
677 When MENU is a keymap or a list of keymaps, the return value\n\
678 is a list of events.\n\n\
680 Alternatively, you can specify a menu of multiple panes\n\
681 with a list of the form (TITLE PANE1 PANE2...),\n\
682 where each pane is a list of form (TITLE ITEM1 ITEM2...).\n\
683 Each ITEM is normally a cons cell (STRING . VALUE);\n\
684 but a string can appear as an item--that makes a nonselectable line\n\
686 With this form of menu, the return value is VALUE from the chosen item.\n\
688 If POSITION is nil, don't display the menu at all, just precalculate the\n\
689 cached information about equivalent key sequences.")
691 Lisp_Object position
, menu
;
693 Lisp_Object keymap
, tem
;
694 int xpos
= 0, ypos
= 0;
697 Lisp_Object selection
;
698 struct frame
*f
= NULL
;
699 Lisp_Object x
, y
, window
;
705 if (! NILP (position
))
709 /* Decode the first argument: find the window and the coordinates. */
710 if (EQ (position
, Qt
)
711 || (CONSP (position
) && EQ (XCAR (position
), Qmenu_bar
)))
713 /* Use the mouse's current position. */
714 FRAME_PTR new_f
= SELECTED_FRAME ();
715 Lisp_Object bar_window
;
716 enum scroll_bar_part part
;
719 if (mouse_position_hook
)
720 (*mouse_position_hook
) (&new_f
, 1, &bar_window
,
721 &part
, &x
, &y
, &time
);
723 XSETFRAME (window
, new_f
);
726 window
= selected_window
;
733 tem
= Fcar (position
);
736 window
= Fcar (Fcdr (position
));
738 y
= Fcar (Fcdr (tem
));
743 tem
= Fcar (Fcdr (position
)); /* EVENT_START (position) */
744 window
= Fcar (tem
); /* POSN_WINDOW (tem) */
745 tem
= Fcar (Fcdr (Fcdr (tem
))); /* POSN_WINDOW_POSN (tem) */
754 /* Decode where to put the menu. */
762 else if (WINDOWP (window
))
764 CHECK_LIVE_WINDOW (window
, 0);
765 f
= XFRAME (WINDOW_FRAME (XWINDOW (window
)));
767 xpos
= (FONT_WIDTH (f
->output_data
.x
->font
)
768 * XFASTINT (XWINDOW (window
)->left
));
769 ypos
= (f
->output_data
.x
->line_height
770 * XFASTINT (XWINDOW (window
)->top
));
773 /* ??? Not really clean; should be CHECK_WINDOW_OR_FRAME,
774 but I don't want to make one now. */
775 CHECK_WINDOW (window
, 0);
780 XSETFRAME (Vmenu_updating_frame
, f
);
782 Vmenu_updating_frame
= Qnil
;
783 #endif /* HAVE_MENUS */
788 /* Decode the menu items from what was specified. */
790 keymap
= Fkeymapp (menu
);
793 tem
= Fkeymapp (Fcar (menu
));
796 /* We were given a keymap. Extract menu info from the keymap. */
798 keymap
= get_keymap (menu
);
800 /* Extract the detailed info to make one pane. */
801 keymap_panes (&menu
, 1, NILP (position
));
803 /* Search for a string appearing directly as an element of the keymap.
804 That string is the title of the menu. */
805 prompt
= map_prompt (keymap
);
806 if (NILP (title
) && !NILP (prompt
))
809 /* Make that be the pane title of the first pane. */
810 if (!NILP (prompt
) && menu_items_n_panes
>= 0)
811 XVECTOR (menu_items
)->contents
[MENU_ITEMS_PANE_NAME
] = prompt
;
815 else if (!NILP (tem
))
817 /* We were given a list of keymaps. */
818 int nmaps
= XFASTINT (Flength (menu
));
820 = (Lisp_Object
*) alloca (nmaps
* sizeof (Lisp_Object
));
825 /* The first keymap that has a prompt string
826 supplies the menu title. */
827 for (tem
= menu
, i
= 0; CONSP (tem
); tem
= Fcdr (tem
))
831 maps
[i
++] = keymap
= get_keymap (Fcar (tem
));
833 prompt
= map_prompt (keymap
);
834 if (NILP (title
) && !NILP (prompt
))
838 /* Extract the detailed info to make one pane. */
839 keymap_panes (maps
, nmaps
, NILP (position
));
841 /* Make the title be the pane title of the first pane. */
842 if (!NILP (title
) && menu_items_n_panes
>= 0)
843 XVECTOR (menu_items
)->contents
[MENU_ITEMS_PANE_NAME
] = title
;
849 /* We were given an old-fashioned menu. */
851 CHECK_STRING (title
, 1);
853 list_of_panes (Fcdr (menu
));
860 discard_menu_items ();
866 /* Display them in a menu. */
869 selection
= xmenu_show (f
, xpos
, ypos
, for_click
,
870 keymaps
, title
, &error_name
);
873 discard_menu_items ();
876 #endif /* HAVE_MENUS */
878 if (error_name
) error (error_name
);
884 DEFUN ("x-popup-dialog", Fx_popup_dialog
, Sx_popup_dialog
, 2, 2, 0,
885 "Pop up a dialog box and return user's selection.\n\
886 POSITION specifies which frame to use.\n\
887 This is normally a mouse button event or a window or frame.\n\
888 If POSITION is t, it means to use the frame the mouse is on.\n\
889 The dialog box appears in the middle of the specified frame.\n\
891 CONTENTS specifies the alternatives to display in the dialog box.\n\
892 It is a list of the form (TITLE ITEM1 ITEM2...).\n\
893 Each ITEM is a cons cell (STRING . VALUE).\n\
894 The return value is VALUE from the chosen item.\n\n\
895 An ITEM may also be just a string--that makes a nonselectable item.\n\
896 An ITEM may also be nil--that means to put all preceding items\n\
897 on the left of the dialog box and all following items on the right.\n\
898 \(By default, approximately half appear on each side.)")
900 Lisp_Object position
, contents
;
902 struct frame
* f
= NULL
;
907 /* Decode the first argument: find the window or frame to use. */
908 if (EQ (position
, Qt
)
909 || (CONSP (position
) && EQ (XCAR (position
), Qmenu_bar
)))
911 #if 0 /* Using the frame the mouse is on may not be right. */
912 /* Use the mouse's current position. */
913 FRAME_PTR new_f
= SELECTED_FRAME ();
914 Lisp_Object bar_window
;
919 (*mouse_position_hook
) (&new_f
, 1, &bar_window
, &part
, &x
, &y
, &time
);
922 XSETFRAME (window
, new_f
);
924 window
= selected_window
;
926 window
= selected_window
;
928 else if (CONSP (position
))
931 tem
= Fcar (position
);
933 window
= Fcar (Fcdr (position
));
936 tem
= Fcar (Fcdr (position
)); /* EVENT_START (position) */
937 window
= Fcar (tem
); /* POSN_WINDOW (tem) */
940 else if (WINDOWP (position
) || FRAMEP (position
))
945 /* Decode where to put the menu. */
949 else if (WINDOWP (window
))
951 CHECK_LIVE_WINDOW (window
, 0);
952 f
= XFRAME (WINDOW_FRAME (XWINDOW (window
)));
955 /* ??? Not really clean; should be CHECK_WINDOW_OR_FRAME,
956 but I don't want to make one now. */
957 CHECK_WINDOW (window
, 0);
959 #ifndef USE_X_TOOLKIT
960 /* Display a menu with these alternatives
961 in the middle of frame F. */
963 Lisp_Object x
, y
, frame
, newpos
;
964 XSETFRAME (frame
, f
);
965 XSETINT (x
, x_pixel_width (f
) / 2);
966 XSETINT (y
, x_pixel_height (f
) / 2);
967 newpos
= Fcons (Fcons (x
, Fcons (y
, Qnil
)), Fcons (frame
, Qnil
));
969 return Fx_popup_menu (newpos
,
970 Fcons (Fcar (contents
), Fcons (contents
, Qnil
)));
976 Lisp_Object selection
;
978 /* Decode the dialog items from what was specified. */
979 title
= Fcar (contents
);
980 CHECK_STRING (title
, 1);
982 list_of_panes (Fcons (contents
, Qnil
));
984 /* Display them in a dialog box. */
986 selection
= xdialog_show (f
, 0, title
, &error_name
);
989 discard_menu_items ();
991 if (error_name
) error (error_name
);
999 /* Loop in Xt until the menu pulldown or dialog popup has been
1000 popped down (deactivated). This is used for x-popup-menu
1001 and x-popup-dialog; it is not used for the menu bar any more.
1003 NOTE: All calls to popup_get_selection should be protected
1004 with BLOCK_INPUT, UNBLOCK_INPUT wrappers. */
1007 popup_get_selection (initial_event
, dpyinfo
, id
)
1008 XEvent
*initial_event
;
1009 struct x_display_info
*dpyinfo
;
1014 /* Define a queue to save up for later unreading
1015 all X events that don't pertain to the menu. */
1019 struct event_queue
*next
;
1022 struct event_queue
*queue
= NULL
;
1023 struct event_queue
*queue_tmp
;
1026 event
= *initial_event
;
1028 XtAppNextEvent (Xt_app_con
, &event
);
1032 /* Handle expose events for editor frames right away. */
1033 if (event
.type
== Expose
)
1034 process_expose_from_menu (event
);
1035 /* Make sure we don't consider buttons grabbed after menu goes.
1036 And make sure to deactivate for any ButtonRelease,
1037 even if XtDispatchEvent doesn't do that. */
1038 else if (event
.type
== ButtonRelease
1039 && dpyinfo
->display
== event
.xbutton
.display
)
1041 dpyinfo
->grabbed
&= ~(1 << event
.xbutton
.button
);
1042 popup_activated_flag
= 0;
1043 #ifdef USE_MOTIF /* Pretending that the event came from a
1044 Btn1Down seems the only way to convince Motif to
1045 activate its callbacks; setting the XmNmenuPost
1046 isn't working. --marcus@sysc.pdx.edu. */
1047 event
.xbutton
.button
= 1;
1050 /* If the user presses a key, deactivate the menu.
1051 The user is likely to do that if we get wedged. */
1052 else if (event
.type
== KeyPress
1053 && dpyinfo
->display
== event
.xbutton
.display
)
1055 KeySym keysym
= XLookupKeysym (&event
.xkey
, 0);
1056 if (!IsModifierKey (keysym
))
1058 popup_activated_flag
= 0;
1062 /* Button presses outside the menu also pop it down. */
1063 else if (event
.type
== ButtonPress
1064 && event
.xany
.display
== dpyinfo
->display
1065 && x_any_window_to_frame (dpyinfo
, event
.xany
.window
))
1067 popup_activated_flag
= 0;
1071 /* Queue all events not for this popup,
1072 except for Expose, which we've already handled, and ButtonRelease.
1073 Note that the X window is associated with the frame if this
1074 is a menu bar popup, but not if it's a dialog box. So we use
1075 x_non_menubar_window_to_frame, not x_any_window_to_frame. */
1076 if (event
.type
!= Expose
1077 && !(event
.type
== ButtonRelease
1078 && dpyinfo
->display
== event
.xbutton
.display
)
1079 && (event
.xany
.display
!= dpyinfo
->display
1080 || x_non_menubar_window_to_frame (dpyinfo
, event
.xany
.window
)))
1082 queue_tmp
= (struct event_queue
*) malloc (sizeof (struct event_queue
));
1084 if (queue_tmp
!= NULL
)
1086 queue_tmp
->event
= event
;
1087 queue_tmp
->next
= queue
;
1092 XtDispatchEvent (&event
);
1094 if (!popup_activated ())
1096 XtAppNextEvent (Xt_app_con
, &event
);
1099 /* Unread any events that we got but did not handle. */
1100 while (queue
!= NULL
)
1103 XPutBackEvent (queue_tmp
->event
.xany
.display
, &queue_tmp
->event
);
1104 queue
= queue_tmp
->next
;
1105 xfree ((char *)queue_tmp
);
1106 /* Cause these events to get read as soon as we UNBLOCK_INPUT. */
1107 interrupt_input_pending
= 1;
1111 /* Activate the menu bar of frame F.
1112 This is called from keyboard.c when it gets the
1113 menu_bar_activate_event out of the Emacs event queue.
1115 To activate the menu bar, we use the X button-press event
1116 that was saved in saved_menu_event.
1117 That makes the toolkit do its thing.
1119 But first we recompute the menu bar contents (the whole tree).
1121 The reason for saving the button event until here, instead of
1122 passing it to the toolkit right away, is that we can safely
1123 execute Lisp code. */
1126 x_activate_menubar (f
)
1129 if (!f
->output_data
.x
->saved_menu_event
->type
)
1132 set_frame_menubar (f
, 0, 1);
1134 XtDispatchEvent ((XEvent
*) f
->output_data
.x
->saved_menu_event
);
1137 if (f
->output_data
.x
->saved_menu_event
->type
== ButtonRelease
)
1138 pending_menu_activation
= 1;
1141 /* Ignore this if we get it a second time. */
1142 f
->output_data
.x
->saved_menu_event
->type
= 0;
1145 /* Detect if a dialog or menu has been posted. */
1150 return popup_activated_flag
;
1153 /* This callback is invoked when the user selects a menubar cascade
1154 pushbutton, but before the pulldown menu is posted. */
1157 popup_activate_callback (widget
, id
, client_data
)
1160 XtPointer client_data
;
1163 ++popup_activated_flag
;
1165 popup_activated_flag
= 1;
1169 /* This callback is invoked when a dialog or menu is finished being
1170 used and has been unposted. */
1173 popup_deactivate_callback (widget
, id
, client_data
)
1176 XtPointer client_data
;
1179 --popup_activated_flag
;
1181 popup_activated_flag
= 0;
1185 /* Lwlib callback called when menu items are highlighted/unhighlighted
1186 while moving the mouse over them. WIDGET is the menu bar or menu
1187 popup widget. ID is its LWLIB_ID. CALL_DATA contains a pointer to
1188 the widget_value structure for the menu item, or null in case of
1192 menu_highlight_callback (widget
, id
, call_data
)
1197 widget_value
*wv
= (widget_value
*) call_data
;
1199 Lisp_Object frame
, help
;
1201 help
= wv
&& wv
->help
? build_string (wv
->help
) : Qnil
;
1203 /* Determine the frame for the help event. */
1204 f
= menubar_id_to_frame (id
);
1207 XSETFRAME (frame
, f
);
1208 kbd_buffer_store_help_event (frame
, help
);
1212 /* WIDGET is the popup menu. It's parent is the frame's
1213 widget. See which frame that is. */
1214 Widget frame_widget
= XtParent (widget
);
1217 for (tail
= Vframe_list
; GC_CONSP (tail
); tail
= XCDR (tail
))
1219 frame
= XCAR (tail
);
1220 if (GC_FRAMEP (frame
)
1221 && (f
= XFRAME (frame
),
1222 FRAME_X_P (f
) && f
->output_data
.x
->widget
== frame_widget
))
1226 show_help_echo (help
, Qnil
, Qnil
, Qnil
, 1);
1230 /* This callback is called from the menu bar pulldown menu
1231 when the user makes a selection.
1232 Figure out what the user chose
1233 and put the appropriate events into the keyboard buffer. */
1236 menubar_selection_callback (widget
, id
, client_data
)
1239 XtPointer client_data
;
1241 Lisp_Object prefix
, entry
;
1242 FRAME_PTR f
= menubar_id_to_frame (id
);
1244 Lisp_Object
*subprefix_stack
;
1245 int submenu_depth
= 0;
1251 subprefix_stack
= (Lisp_Object
*) alloca (f
->menu_bar_items_used
* sizeof (Lisp_Object
));
1252 vector
= f
->menu_bar_vector
;
1255 while (i
< f
->menu_bar_items_used
)
1257 if (EQ (XVECTOR (vector
)->contents
[i
], Qnil
))
1259 subprefix_stack
[submenu_depth
++] = prefix
;
1263 else if (EQ (XVECTOR (vector
)->contents
[i
], Qlambda
))
1265 prefix
= subprefix_stack
[--submenu_depth
];
1268 else if (EQ (XVECTOR (vector
)->contents
[i
], Qt
))
1270 prefix
= XVECTOR (vector
)->contents
[i
+ MENU_ITEMS_PANE_PREFIX
];
1271 i
+= MENU_ITEMS_PANE_LENGTH
;
1275 entry
= XVECTOR (vector
)->contents
[i
+ MENU_ITEMS_ITEM_VALUE
];
1276 /* The EMACS_INT cast avoids a warning. There's no problem
1277 as long as pointers have enough bits to hold small integers. */
1278 if ((int) (EMACS_INT
) client_data
== i
)
1281 struct input_event buf
;
1284 XSETFRAME (frame
, f
);
1285 buf
.kind
= MENU_BAR_EVENT
;
1286 buf
.frame_or_window
= frame
;
1288 kbd_buffer_store_event (&buf
);
1290 for (j
= 0; j
< submenu_depth
; j
++)
1291 if (!NILP (subprefix_stack
[j
]))
1293 buf
.kind
= MENU_BAR_EVENT
;
1294 buf
.frame_or_window
= frame
;
1295 buf
.arg
= subprefix_stack
[j
];
1296 kbd_buffer_store_event (&buf
);
1301 buf
.kind
= MENU_BAR_EVENT
;
1302 buf
.frame_or_window
= frame
;
1304 kbd_buffer_store_event (&buf
);
1307 buf
.kind
= MENU_BAR_EVENT
;
1308 buf
.frame_or_window
= frame
;
1310 kbd_buffer_store_event (&buf
);
1314 i
+= MENU_ITEMS_ITEM_LENGTH
;
1319 /* Allocate a widget_value, blocking input. */
1322 xmalloc_widget_value ()
1324 widget_value
*value
;
1327 value
= malloc_widget_value ();
1333 /* This recursively calls free_widget_value on the tree of widgets.
1334 It must free all data that was malloc'ed for these widget_values.
1335 In Emacs, many slots are pointers into the data of Lisp_Strings, and
1336 must be left alone. */
1339 free_menubar_widget_value_tree (wv
)
1344 wv
->name
= wv
->value
= wv
->key
= (char *) 0xDEADBEEF;
1346 if (wv
->contents
&& (wv
->contents
!= (widget_value
*)1))
1348 free_menubar_widget_value_tree (wv
->contents
);
1349 wv
->contents
= (widget_value
*) 0xDEADBEEF;
1353 free_menubar_widget_value_tree (wv
->next
);
1354 wv
->next
= (widget_value
*) 0xDEADBEEF;
1357 free_widget_value (wv
);
1361 /* Return a tree of widget_value structures for a menu bar item
1362 whose event type is ITEM_KEY (with string ITEM_NAME)
1363 and whose contents come from the list of keymaps MAPS. */
1365 static widget_value
*
1366 single_submenu (item_key
, item_name
, maps
)
1367 Lisp_Object item_key
, item_name
, maps
;
1369 widget_value
*wv
, *prev_wv
, *save_wv
, *first_wv
;
1371 int submenu_depth
= 0;
1374 Lisp_Object
*mapvec
;
1375 widget_value
**submenu_stack
;
1376 int previous_items
= menu_items_used
;
1377 int top_level_items
= 0;
1379 length
= Flength (maps
);
1380 len
= XINT (length
);
1382 /* Convert the list MAPS into a vector MAPVEC. */
1383 mapvec
= (Lisp_Object
*) alloca (len
* sizeof (Lisp_Object
));
1384 for (i
= 0; i
< len
; i
++)
1386 mapvec
[i
] = Fcar (maps
);
1390 menu_items_n_panes
= 0;
1392 /* Loop over the given keymaps, making a pane for each map.
1393 But don't make a pane that is empty--ignore that map instead. */
1394 for (i
= 0; i
< len
; i
++)
1396 if (SYMBOLP (mapvec
[i
])
1397 || (CONSP (mapvec
[i
])
1398 && NILP (Fkeymapp (mapvec
[i
]))))
1400 /* Here we have a command at top level in the menu bar
1401 as opposed to a submenu. */
1402 top_level_items
= 1;
1403 push_menu_pane (Qnil
, Qnil
);
1404 push_menu_item (item_name
, Qt
, item_key
, mapvec
[i
],
1405 Qnil
, Qnil
, Qnil
, Qnil
);
1408 single_keymap_panes (mapvec
[i
], item_name
, item_key
, 0, 10);
1411 /* Create a tree of widget_value objects
1412 representing the panes and their items. */
1415 = (widget_value
**) alloca (menu_items_used
* sizeof (widget_value
*));
1416 wv
= xmalloc_widget_value ();
1420 wv
->button_type
= BUTTON_TYPE_NONE
;
1425 /* Loop over all panes and items made during this call
1426 and construct a tree of widget_value objects.
1427 Ignore the panes and items made by previous calls to
1428 single_submenu, even though those are also in menu_items. */
1430 while (i
< menu_items_used
)
1432 if (EQ (XVECTOR (menu_items
)->contents
[i
], Qnil
))
1434 submenu_stack
[submenu_depth
++] = save_wv
;
1439 else if (EQ (XVECTOR (menu_items
)->contents
[i
], Qlambda
))
1442 save_wv
= submenu_stack
[--submenu_depth
];
1445 else if (EQ (XVECTOR (menu_items
)->contents
[i
], Qt
)
1446 && submenu_depth
!= 0)
1447 i
+= MENU_ITEMS_PANE_LENGTH
;
1448 /* Ignore a nil in the item list.
1449 It's meaningful only for dialog boxes. */
1450 else if (EQ (XVECTOR (menu_items
)->contents
[i
], Qquote
))
1452 else if (EQ (XVECTOR (menu_items
)->contents
[i
], Qt
))
1454 /* Create a new pane. */
1455 Lisp_Object pane_name
, prefix
;
1457 pane_name
= XVECTOR (menu_items
)->contents
[i
+ MENU_ITEMS_PANE_NAME
];
1458 prefix
= XVECTOR (menu_items
)->contents
[i
+ MENU_ITEMS_PANE_PREFIX
];
1459 #ifndef HAVE_MULTILINGUAL_MENU
1460 if (STRINGP (pane_name
) && STRING_MULTIBYTE (pane_name
))
1461 pane_name
= string_make_unibyte (pane_name
);
1463 pane_string
= (NILP (pane_name
)
1464 ? "" : (char *) XSTRING (pane_name
)->data
);
1465 /* If there is just one top-level pane, put all its items directly
1466 under the top-level menu. */
1467 if (menu_items_n_panes
== 1)
1470 /* If the pane has a meaningful name,
1471 make the pane a top-level menu item
1472 with its items as a submenu beneath it. */
1473 if (strcmp (pane_string
, ""))
1475 wv
= xmalloc_widget_value ();
1479 first_wv
->contents
= wv
;
1480 wv
->name
= pane_string
;
1481 /* Ignore the @ that means "separate pane".
1482 This is a kludge, but this isn't worth more time. */
1483 if (!NILP (prefix
) && wv
->name
[0] == '@')
1487 wv
->button_type
= BUTTON_TYPE_NONE
;
1491 i
+= MENU_ITEMS_PANE_LENGTH
;
1495 /* Create a new item within current pane. */
1496 Lisp_Object item_name
, enable
, descrip
, def
, type
, selected
;
1499 item_name
= XVECTOR (menu_items
)->contents
[i
+ MENU_ITEMS_ITEM_NAME
];
1500 enable
= XVECTOR (menu_items
)->contents
[i
+ MENU_ITEMS_ITEM_ENABLE
];
1502 = XVECTOR (menu_items
)->contents
[i
+ MENU_ITEMS_ITEM_EQUIV_KEY
];
1503 def
= XVECTOR (menu_items
)->contents
[i
+ MENU_ITEMS_ITEM_DEFINITION
];
1504 type
= XVECTOR (menu_items
)->contents
[i
+ MENU_ITEMS_ITEM_TYPE
];
1505 selected
= XVECTOR (menu_items
)->contents
[i
+ MENU_ITEMS_ITEM_SELECTED
];
1506 help
= XVECTOR (menu_items
)->contents
[i
+ MENU_ITEMS_ITEM_HELP
];
1508 #ifndef HAVE_MULTILINGUAL_MENU
1509 if (STRING_MULTIBYTE (item_name
))
1510 item_name
= string_make_unibyte (item_name
);
1511 if (STRINGP (descrip
) && STRING_MULTIBYTE (descrip
))
1512 descrip
= string_make_unibyte (descrip
);
1515 wv
= xmalloc_widget_value ();
1519 save_wv
->contents
= wv
;
1521 wv
->name
= (char *) XSTRING (item_name
)->data
;
1522 if (!NILP (descrip
))
1523 wv
->key
= (char *) XSTRING (descrip
)->data
;
1525 /* The EMACS_INT cast avoids a warning. There's no problem
1526 as long as pointers have enough bits to hold small integers. */
1527 wv
->call_data
= (!NILP (def
) ? (void *) (EMACS_INT
) i
: 0);
1528 wv
->enabled
= !NILP (enable
);
1531 wv
->button_type
= BUTTON_TYPE_NONE
;
1532 else if (EQ (type
, QCradio
))
1533 wv
->button_type
= BUTTON_TYPE_RADIO
;
1534 else if (EQ (type
, QCtoggle
))
1535 wv
->button_type
= BUTTON_TYPE_TOGGLE
;
1539 wv
->selected
= !NILP (selected
);
1541 wv
->help
= XSTRING (help
)->data
;
1545 i
+= MENU_ITEMS_ITEM_LENGTH
;
1549 /* If we have just one "menu item"
1550 that was originally a button, return it by itself. */
1551 if (top_level_items
&& first_wv
->contents
&& first_wv
->contents
->next
== 0)
1553 wv
= first_wv
->contents
;
1554 free_widget_value (first_wv
);
1561 extern void EmacsFrameSetCharSize ();
1563 /* Recompute all the widgets of frame F, when the menu bar
1564 has been changed. */
1567 update_frame_menubar (f
)
1570 struct x_output
*x
= f
->output_data
.x
;
1572 int menubar_changed
;
1574 /* We assume the menubar contents has changed if the global flag is set,
1575 or if the current buffer has changed, or if the menubar has never
1576 been updated before.
1578 menubar_changed
= (x
->menubar_widget
1579 && !XtIsManaged (x
->menubar_widget
));
1581 if (! (menubar_changed
))
1585 /* Save the size of the frame because the pane widget doesn't accept to
1586 resize itself. So force it. */
1590 /* Do the voodoo which means "I'm changing lots of things, don't try to
1591 refigure sizes until I'm done." */
1592 lw_refigure_widget (x
->column_widget
, False
);
1594 /* the order in which children are managed is the top to
1595 bottom order in which they are displayed in the paned window.
1596 First, remove the text-area widget.
1598 XtUnmanageChild (x
->edit_widget
);
1600 /* remove the menubar that is there now, and put up the menubar that
1603 if (menubar_changed
)
1605 XtManageChild (x
->menubar_widget
);
1606 XtMapWidget (x
->menubar_widget
);
1607 XtVaSetValues (x
->menubar_widget
, XtNmappedWhenManaged
, 1, NULL
);
1610 /* Re-manage the text-area widget, and then thrash the sizes. */
1611 XtManageChild (x
->edit_widget
);
1612 x_set_menu_resources_from_menu_face (f
, x
->menubar_widget
);
1613 lw_refigure_widget (x
->column_widget
, True
);
1615 /* Force the pane widget to resize itself with the right values. */
1616 EmacsFrameSetCharSize (x
->edit_widget
, columns
, rows
);
1620 /* Set the contents of the menubar widgets of frame F.
1621 The argument FIRST_TIME is currently ignored;
1622 it is set the first time this is called, from initialize_frame_menubar. */
1625 set_frame_menubar (f
, first_time
, deep_p
)
1630 Widget menubar_widget
= f
->output_data
.x
->menubar_widget
;
1632 widget_value
*wv
, *first_wv
, *prev_wv
= 0;
1636 XSETFRAME (Vmenu_updating_frame
, f
);
1638 if (f
->output_data
.x
->id
== 0)
1639 f
->output_data
.x
->id
= next_menubar_widget_id
++;
1640 id
= f
->output_data
.x
->id
;
1642 if (! menubar_widget
)
1644 else if (pending_menu_activation
&& !deep_p
)
1646 /* Make the first call for any given frame always go deep. */
1647 else if (!f
->output_data
.x
->saved_menu_event
&& !deep_p
)
1650 f
->output_data
.x
->saved_menu_event
= (XEvent
*)xmalloc (sizeof (XEvent
));
1651 f
->output_data
.x
->saved_menu_event
->type
= 0;
1654 wv
= xmalloc_widget_value ();
1655 wv
->name
= "menubar";
1658 wv
->button_type
= BUTTON_TYPE_NONE
;
1663 /* Make a widget-value tree representing the entire menu trees. */
1665 struct buffer
*prev
= current_buffer
;
1667 int specpdl_count
= specpdl_ptr
- specpdl
;
1668 int previous_menu_items_used
= f
->menu_bar_items_used
;
1669 Lisp_Object
*previous_items
1670 = (Lisp_Object
*) alloca (previous_menu_items_used
1671 * sizeof (Lisp_Object
));
1673 /* If we are making a new widget, its contents are empty,
1674 do always reinitialize them. */
1675 if (! menubar_widget
)
1676 previous_menu_items_used
= 0;
1678 buffer
= XWINDOW (FRAME_SELECTED_WINDOW (f
))->buffer
;
1679 specbind (Qinhibit_quit
, Qt
);
1680 /* Don't let the debugger step into this code
1681 because it is not reentrant. */
1682 specbind (Qdebug_on_next_call
, Qnil
);
1684 record_unwind_protect (Fset_match_data
, Fmatch_data (Qnil
, Qnil
));
1685 if (NILP (Voverriding_local_map_menu_flag
))
1687 specbind (Qoverriding_terminal_local_map
, Qnil
);
1688 specbind (Qoverriding_local_map
, Qnil
);
1691 set_buffer_internal_1 (XBUFFER (buffer
));
1693 /* Run the Lucid hook. */
1694 call1 (Vrun_hooks
, Qactivate_menubar_hook
);
1695 /* If it has changed current-menubar from previous value,
1696 really recompute the menubar from the value. */
1697 if (! NILP (Vlucid_menu_bar_dirty_flag
))
1698 call0 (Qrecompute_lucid_menubar
);
1699 safe_run_hooks (Qmenu_bar_update_hook
);
1700 FRAME_MENU_BAR_ITEMS (f
) = menu_bar_items (FRAME_MENU_BAR_ITEMS (f
));
1702 items
= FRAME_MENU_BAR_ITEMS (f
);
1704 inhibit_garbage_collection ();
1706 /* Save the frame's previous menu bar contents data. */
1707 bcopy (XVECTOR (f
->menu_bar_vector
)->contents
, previous_items
,
1708 previous_menu_items_used
* sizeof (Lisp_Object
));
1710 /* Fill in the current menu bar contents. */
1711 menu_items
= f
->menu_bar_vector
;
1712 menu_items_allocated
= XVECTOR (menu_items
)->size
;
1714 for (i
= 0; i
< XVECTOR (items
)->size
; i
+= 4)
1716 Lisp_Object key
, string
, maps
;
1718 key
= XVECTOR (items
)->contents
[i
];
1719 string
= XVECTOR (items
)->contents
[i
+ 1];
1720 maps
= XVECTOR (items
)->contents
[i
+ 2];
1724 wv
= single_submenu (key
, string
, maps
);
1728 first_wv
->contents
= wv
;
1729 /* Don't set wv->name here; GC during the loop might relocate it. */
1731 wv
->button_type
= BUTTON_TYPE_NONE
;
1735 finish_menu_items ();
1737 set_buffer_internal_1 (prev
);
1738 unbind_to (specpdl_count
, Qnil
);
1740 /* If there has been no change in the Lisp-level contents
1741 of the menu bar, skip redisplaying it. Just exit. */
1743 for (i
= 0; i
< previous_menu_items_used
; i
++)
1744 if (menu_items_used
== i
1745 || (!EQ (previous_items
[i
], XVECTOR (menu_items
)->contents
[i
])))
1747 if (i
== menu_items_used
&& i
== previous_menu_items_used
&& i
!= 0)
1749 free_menubar_widget_value_tree (first_wv
);
1755 /* Now GC cannot happen during the lifetime of the widget_value,
1756 so it's safe to store data from a Lisp_String. */
1757 wv
= first_wv
->contents
;
1758 for (i
= 0; i
< XVECTOR (items
)->size
; i
+= 4)
1761 string
= XVECTOR (items
)->contents
[i
+ 1];
1764 wv
->name
= (char *) XSTRING (string
)->data
;
1768 f
->menu_bar_vector
= menu_items
;
1769 f
->menu_bar_items_used
= menu_items_used
;
1774 /* Make a widget-value tree containing
1775 just the top level menu bar strings. */
1777 items
= FRAME_MENU_BAR_ITEMS (f
);
1778 for (i
= 0; i
< XVECTOR (items
)->size
; i
+= 4)
1782 string
= XVECTOR (items
)->contents
[i
+ 1];
1786 wv
= xmalloc_widget_value ();
1787 wv
->name
= (char *) XSTRING (string
)->data
;
1790 wv
->button_type
= BUTTON_TYPE_NONE
;
1791 /* This prevents lwlib from assuming this
1792 menu item is really supposed to be empty. */
1793 /* The EMACS_INT cast avoids a warning.
1794 This value just has to be different from small integers. */
1795 wv
->call_data
= (void *) (EMACS_INT
) (-1);
1800 first_wv
->contents
= wv
;
1804 /* Forget what we thought we knew about what is in the
1805 detailed contents of the menu bar menus.
1806 Changing the top level always destroys the contents. */
1807 f
->menu_bar_items_used
= 0;
1810 /* Create or update the menu bar widget. */
1816 /* Disable resizing (done for Motif!) */
1817 lw_allow_resizing (f
->output_data
.x
->widget
, False
);
1819 /* The third arg is DEEP_P, which says to consider the entire
1820 menu trees we supply, rather than just the menu bar item names. */
1821 lw_modify_all_widgets (id
, first_wv
, deep_p
);
1823 /* Re-enable the edit widget to resize. */
1824 lw_allow_resizing (f
->output_data
.x
->widget
, True
);
1828 menubar_widget
= lw_create_widget ("menubar", "menubar", id
, first_wv
,
1829 f
->output_data
.x
->column_widget
,
1831 popup_activate_callback
,
1832 menubar_selection_callback
,
1833 popup_deactivate_callback
,
1834 menu_highlight_callback
);
1835 f
->output_data
.x
->menubar_widget
= menubar_widget
;
1840 = (f
->output_data
.x
->menubar_widget
1841 ? (f
->output_data
.x
->menubar_widget
->core
.height
1842 + f
->output_data
.x
->menubar_widget
->core
.border_width
)
1845 #if 0 /* Experimentally, we now get the right results
1846 for -geometry -0-0 without this. 24 Aug 96, rms. */
1848 if (FRAME_EXTERNAL_MENU_BAR (f
))
1851 XtVaGetValues (f
->output_data
.x
->column_widget
,
1852 XtNinternalBorderWidth
, &ibw
, NULL
);
1853 menubar_size
+= ibw
;
1855 #endif /* USE_LUCID */
1858 f
->output_data
.x
->menubar_height
= menubar_size
;
1861 free_menubar_widget_value_tree (first_wv
);
1862 update_frame_menubar (f
);
1867 /* Called from Fx_create_frame to create the initial menubar of a frame
1868 before it is mapped, so that the window is mapped with the menubar already
1869 there instead of us tacking it on later and thrashing the window after it
1873 initialize_frame_menubar (f
)
1876 /* This function is called before the first chance to redisplay
1877 the frame. It has to be, so the frame will have the right size. */
1878 FRAME_MENU_BAR_ITEMS (f
) = menu_bar_items (FRAME_MENU_BAR_ITEMS (f
));
1879 set_frame_menubar (f
, 1, 1);
1882 /* Get rid of the menu bar of frame F, and free its storage.
1883 This is used when deleting a frame, and when turning off the menu bar. */
1886 free_frame_menubar (f
)
1889 Widget menubar_widget
;
1891 menubar_widget
= f
->output_data
.x
->menubar_widget
;
1893 f
->output_data
.x
->menubar_height
= 0;
1898 lw_destroy_all_widgets ((LWLIB_ID
) f
->output_data
.x
->id
);
1903 #endif /* USE_X_TOOLKIT */
1905 /* xmenu_show actually displays a menu using the panes and items in menu_items
1906 and returns the value selected from it.
1907 There are two versions of xmenu_show, one for Xt and one for Xlib.
1908 Both assume input is blocked by the caller. */
1910 /* F is the frame the menu is for.
1911 X and Y are the frame-relative specified position,
1912 relative to the inside upper left corner of the frame F.
1913 FOR_CLICK is nonzero if this menu was invoked for a mouse click.
1914 KEYMAPS is 1 if this menu was specified with keymaps;
1915 in that case, we return a list containing the chosen item's value
1916 and perhaps also the pane's prefix.
1917 TITLE is the specified menu title.
1918 ERROR is a place to store an error message string in case of failure.
1919 (We return nil on failure, but the value doesn't actually matter.) */
1921 #ifdef USE_X_TOOLKIT
1923 /* We need a unique id for each widget handled by the Lucid Widget
1926 For the main windows, and popup menus, we use this counter,
1927 which we increment each time after use. This starts from 1<<16.
1929 For menu bars, we use numbers starting at 0, counted in
1930 next_menubar_widget_id. */
1931 LWLIB_ID widget_id_tick
;
1933 static Lisp_Object
*volatile menu_item_selection
;
1936 popup_selection_callback (widget
, id
, client_data
)
1939 XtPointer client_data
;
1941 menu_item_selection
= (Lisp_Object
*) client_data
;
1945 xmenu_show (f
, x
, y
, for_click
, keymaps
, title
, error
)
1959 widget_value
*wv
, *save_wv
= 0, *first_wv
= 0, *prev_wv
= 0;
1960 widget_value
**submenu_stack
1961 = (widget_value
**) alloca (menu_items_used
* sizeof (widget_value
*));
1962 Lisp_Object
*subprefix_stack
1963 = (Lisp_Object
*) alloca (menu_items_used
* sizeof (Lisp_Object
));
1964 int submenu_depth
= 0;
1965 XButtonPressedEvent dummy
;
1971 if (menu_items_used
<= MENU_ITEMS_PANE_LENGTH
)
1973 *error
= "Empty menu";
1977 /* Create a tree of widget_value objects
1978 representing the panes and their items. */
1979 wv
= xmalloc_widget_value ();
1983 wv
->button_type
= BUTTON_TYPE_NONE
;
1987 /* Loop over all panes and items, filling in the tree. */
1989 while (i
< menu_items_used
)
1991 if (EQ (XVECTOR (menu_items
)->contents
[i
], Qnil
))
1993 submenu_stack
[submenu_depth
++] = save_wv
;
1999 else if (EQ (XVECTOR (menu_items
)->contents
[i
], Qlambda
))
2002 save_wv
= submenu_stack
[--submenu_depth
];
2006 else if (EQ (XVECTOR (menu_items
)->contents
[i
], Qt
)
2007 && submenu_depth
!= 0)
2008 i
+= MENU_ITEMS_PANE_LENGTH
;
2009 /* Ignore a nil in the item list.
2010 It's meaningful only for dialog boxes. */
2011 else if (EQ (XVECTOR (menu_items
)->contents
[i
], Qquote
))
2013 else if (EQ (XVECTOR (menu_items
)->contents
[i
], Qt
))
2015 /* Create a new pane. */
2016 Lisp_Object pane_name
, prefix
;
2018 pane_name
= XVECTOR (menu_items
)->contents
[i
+ MENU_ITEMS_PANE_NAME
];
2019 prefix
= XVECTOR (menu_items
)->contents
[i
+ MENU_ITEMS_PANE_PREFIX
];
2020 #ifndef HAVE_MULTILINGUAL_MENU
2021 if (!NILP (pane_name
) && STRING_MULTIBYTE (pane_name
))
2022 pane_name
= string_make_unibyte (pane_name
);
2024 pane_string
= (NILP (pane_name
)
2025 ? "" : (char *) XSTRING (pane_name
)->data
);
2026 /* If there is just one top-level pane, put all its items directly
2027 under the top-level menu. */
2028 if (menu_items_n_panes
== 1)
2031 /* If the pane has a meaningful name,
2032 make the pane a top-level menu item
2033 with its items as a submenu beneath it. */
2034 if (!keymaps
&& strcmp (pane_string
, ""))
2036 wv
= xmalloc_widget_value ();
2040 first_wv
->contents
= wv
;
2041 wv
->name
= pane_string
;
2042 if (keymaps
&& !NILP (prefix
))
2046 wv
->button_type
= BUTTON_TYPE_NONE
;
2050 else if (first_pane
)
2056 i
+= MENU_ITEMS_PANE_LENGTH
;
2060 /* Create a new item within current pane. */
2061 Lisp_Object item_name
, enable
, descrip
, def
, type
, selected
, help
;
2062 item_name
= XVECTOR (menu_items
)->contents
[i
+ MENU_ITEMS_ITEM_NAME
];
2063 enable
= XVECTOR (menu_items
)->contents
[i
+ MENU_ITEMS_ITEM_ENABLE
];
2065 = XVECTOR (menu_items
)->contents
[i
+ MENU_ITEMS_ITEM_EQUIV_KEY
];
2066 def
= XVECTOR (menu_items
)->contents
[i
+ MENU_ITEMS_ITEM_DEFINITION
];
2067 type
= XVECTOR (menu_items
)->contents
[i
+ MENU_ITEMS_ITEM_TYPE
];
2068 selected
= XVECTOR (menu_items
)->contents
[i
+ MENU_ITEMS_ITEM_SELECTED
];
2069 help
= XVECTOR (menu_items
)->contents
[i
+ MENU_ITEMS_ITEM_HELP
];
2071 #ifndef HAVE_MULTILINGUAL_MENU
2072 if (STRINGP (item_name
) && STRING_MULTIBYTE (item_name
))
2073 item_name
= string_make_unibyte (item_name
);
2074 if (STRINGP (descrip
) && STRING_MULTIBYTE (descrip
))
2075 item_name
= string_make_unibyte (descrip
);
2078 wv
= xmalloc_widget_value ();
2082 save_wv
->contents
= wv
;
2083 wv
->name
= (char *) XSTRING (item_name
)->data
;
2084 if (!NILP (descrip
))
2085 wv
->key
= (char *) XSTRING (descrip
)->data
;
2087 /* If this item has a null value,
2088 make the call_data null so that it won't display a box
2089 when the mouse is on it. */
2091 = (!NILP (def
) ? (void *) &XVECTOR (menu_items
)->contents
[i
] : 0);
2092 wv
->enabled
= !NILP (enable
);
2095 wv
->button_type
= BUTTON_TYPE_NONE
;
2096 else if (EQ (type
, QCtoggle
))
2097 wv
->button_type
= BUTTON_TYPE_TOGGLE
;
2098 else if (EQ (type
, QCradio
))
2099 wv
->button_type
= BUTTON_TYPE_RADIO
;
2103 wv
->selected
= !NILP (selected
);
2105 wv
->help
= XSTRING (help
)->data
;
2109 i
+= MENU_ITEMS_ITEM_LENGTH
;
2113 /* Deal with the title, if it is non-nil. */
2116 widget_value
*wv_title
= xmalloc_widget_value ();
2117 widget_value
*wv_sep1
= xmalloc_widget_value ();
2118 widget_value
*wv_sep2
= xmalloc_widget_value ();
2120 wv_sep2
->name
= "--";
2121 wv_sep2
->next
= first_wv
->contents
;
2123 wv_sep1
->name
= "--";
2124 wv_sep1
->next
= wv_sep2
;
2126 #ifndef HAVE_MULTILINGUAL_MENU
2127 if (STRING_MULTIBYTE (title
))
2128 title
= string_make_unibyte (title
);
2130 wv_title
->name
= (char *) XSTRING (title
)->data
;
2131 wv_title
->enabled
= True
;
2132 wv_title
->button_type
= BUTTON_TYPE_NONE
;
2133 wv_title
->next
= wv_sep1
;
2134 first_wv
->contents
= wv_title
;
2137 /* Actually create the menu. */
2138 menu_id
= widget_id_tick
++;
2139 menu
= lw_create_widget ("popup", first_wv
->name
, menu_id
, first_wv
,
2140 f
->output_data
.x
->widget
, 1, 0,
2141 popup_selection_callback
,
2142 popup_deactivate_callback
,
2143 menu_highlight_callback
);
2145 /* Adjust coordinates to relative to the outer (window manager) window. */
2148 int win_x
= 0, win_y
= 0;
2150 /* Find the position of the outside upper-left corner of
2151 the inner window, with respect to the outer window. */
2152 if (f
->output_data
.x
->parent_desc
!= FRAME_X_DISPLAY_INFO (f
)->root_window
)
2155 XTranslateCoordinates (FRAME_X_DISPLAY (f
),
2157 /* From-window, to-window. */
2158 f
->output_data
.x
->window_desc
,
2159 f
->output_data
.x
->parent_desc
,
2161 /* From-position, to-position. */
2162 0, 0, &win_x
, &win_y
,
2164 /* Child of window. */
2172 /* Adjust coordinates to be root-window-relative. */
2173 x
+= f
->output_data
.x
->left_pos
;
2174 y
+= f
->output_data
.x
->top_pos
;
2176 dummy
.type
= ButtonPress
;
2178 dummy
.send_event
= 0;
2179 dummy
.display
= FRAME_X_DISPLAY (f
);
2180 dummy
.time
= CurrentTime
;
2181 dummy
.root
= FRAME_X_DISPLAY_INFO (f
)->root_window
;
2182 dummy
.window
= dummy
.root
;
2183 dummy
.subwindow
= dummy
.root
;
2188 dummy
.state
= (FRAME_X_DISPLAY_INFO (f
)->grabbed
>> 1) * Button1Mask
;
2190 for (i
= 0; i
< 5; i
++)
2191 if (FRAME_X_DISPLAY_INFO (f
)->grabbed
& (1 << i
))
2194 /* Don't allow any geometry request from the user. */
2195 XtSetArg (av
[ac
], XtNgeometry
, 0); ac
++;
2196 XtSetValues (menu
, av
, ac
);
2198 /* Free the widget_value objects we used to specify the contents. */
2199 free_menubar_widget_value_tree (first_wv
);
2201 /* Override any default settings with ones from the `menu' face. */
2202 x_set_menu_resources_from_menu_face (f
, menu
);
2204 /* No selection has been chosen yet. */
2205 menu_item_selection
= 0;
2207 /* Display the menu. */
2208 lw_popup_menu (menu
, (XEvent
*) &dummy
);
2209 popup_activated_flag
= 1;
2211 /* Process events that apply to the menu. */
2212 popup_get_selection ((XEvent
*) 0, FRAME_X_DISPLAY_INFO (f
), menu_id
);
2214 #ifdef LESSTIF_VERSION
2215 /* Nov 1998: For an unknown reason a button grab remains active
2216 after the popup menu has gone. */
2217 XUngrabButton (XtDisplay (f
->output_data
.x
->widget
),
2218 AnyButton
, AnyModifier
,
2219 XtWindow (f
->output_data
.x
->widget
));
2220 XUngrabButton (XtDisplay (f
->output_data
.x
->edit_widget
),
2221 AnyButton
, AnyModifier
,
2222 XtWindow (f
->output_data
.x
->edit_widget
));
2223 #endif /* LESSTIF_VERSION */
2225 /* fp turned off the following statement and wrote a comment
2226 that it is unnecessary--that the menu has already disappeared.
2227 Nowadays the menu disappears ok, all right, but
2228 we need to delete the widgets or multiple ones will pile up. */
2229 lw_destroy_all_widgets (menu_id
);
2231 /* Find the selected item, and its pane, to return
2232 the proper value. */
2233 if (menu_item_selection
!= 0)
2235 Lisp_Object prefix
, entry
;
2237 prefix
= entry
= Qnil
;
2239 while (i
< menu_items_used
)
2241 if (EQ (XVECTOR (menu_items
)->contents
[i
], Qnil
))
2243 subprefix_stack
[submenu_depth
++] = prefix
;
2247 else if (EQ (XVECTOR (menu_items
)->contents
[i
], Qlambda
))
2249 prefix
= subprefix_stack
[--submenu_depth
];
2252 else if (EQ (XVECTOR (menu_items
)->contents
[i
], Qt
))
2255 = XVECTOR (menu_items
)->contents
[i
+ MENU_ITEMS_PANE_PREFIX
];
2256 i
+= MENU_ITEMS_PANE_LENGTH
;
2258 /* Ignore a nil in the item list.
2259 It's meaningful only for dialog boxes. */
2260 else if (EQ (XVECTOR (menu_items
)->contents
[i
], Qquote
))
2265 = XVECTOR (menu_items
)->contents
[i
+ MENU_ITEMS_ITEM_VALUE
];
2266 if (menu_item_selection
== &XVECTOR (menu_items
)->contents
[i
])
2272 entry
= Fcons (entry
, Qnil
);
2274 entry
= Fcons (prefix
, entry
);
2275 for (j
= submenu_depth
- 1; j
>= 0; j
--)
2276 if (!NILP (subprefix_stack
[j
]))
2277 entry
= Fcons (subprefix_stack
[j
], entry
);
2281 i
+= MENU_ITEMS_ITEM_LENGTH
;
2290 dialog_selection_callback (widget
, id
, client_data
)
2293 XtPointer client_data
;
2295 /* The EMACS_INT cast avoids a warning. There's no problem
2296 as long as pointers have enough bits to hold small integers. */
2297 if ((int) (EMACS_INT
) client_data
!= -1)
2298 menu_item_selection
= (Lisp_Object
*) client_data
;
2300 lw_destroy_all_widgets (id
);
2302 popup_activated_flag
= 0;
2305 static char * button_names
[] = {
2306 "button1", "button2", "button3", "button4", "button5",
2307 "button6", "button7", "button8", "button9", "button10" };
2310 xdialog_show (f
, keymaps
, title
, error
)
2316 int i
, nb_buttons
=0;
2319 char dialog_name
[6];
2321 widget_value
*wv
, *first_wv
= 0, *prev_wv
= 0;
2323 /* Number of elements seen so far, before boundary. */
2325 /* 1 means we've seen the boundary between left-hand elts and right-hand. */
2326 int boundary_seen
= 0;
2330 if (menu_items_n_panes
> 1)
2332 *error
= "Multiple panes in dialog box";
2336 /* Create a tree of widget_value objects
2337 representing the text label and buttons. */
2339 Lisp_Object pane_name
, prefix
;
2341 pane_name
= XVECTOR (menu_items
)->contents
[MENU_ITEMS_PANE_NAME
];
2342 prefix
= XVECTOR (menu_items
)->contents
[MENU_ITEMS_PANE_PREFIX
];
2343 pane_string
= (NILP (pane_name
)
2344 ? "" : (char *) XSTRING (pane_name
)->data
);
2345 prev_wv
= xmalloc_widget_value ();
2346 prev_wv
->value
= pane_string
;
2347 if (keymaps
&& !NILP (prefix
))
2349 prev_wv
->enabled
= 1;
2350 prev_wv
->name
= "message";
2353 /* Loop over all panes and items, filling in the tree. */
2354 i
= MENU_ITEMS_PANE_LENGTH
;
2355 while (i
< menu_items_used
)
2358 /* Create a new item within current pane. */
2359 Lisp_Object item_name
, enable
, descrip
;
2360 item_name
= XVECTOR (menu_items
)->contents
[i
+ MENU_ITEMS_ITEM_NAME
];
2361 enable
= XVECTOR (menu_items
)->contents
[i
+ MENU_ITEMS_ITEM_ENABLE
];
2363 = XVECTOR (menu_items
)->contents
[i
+ MENU_ITEMS_ITEM_EQUIV_KEY
];
2365 if (NILP (item_name
))
2367 free_menubar_widget_value_tree (first_wv
);
2368 *error
= "Submenu in dialog items";
2371 if (EQ (item_name
, Qquote
))
2373 /* This is the boundary between left-side elts
2374 and right-side elts. Stop incrementing right_count. */
2379 if (nb_buttons
>= 9)
2381 free_menubar_widget_value_tree (first_wv
);
2382 *error
= "Too many dialog items";
2386 wv
= xmalloc_widget_value ();
2388 wv
->name
= (char *) button_names
[nb_buttons
];
2389 if (!NILP (descrip
))
2390 wv
->key
= (char *) XSTRING (descrip
)->data
;
2391 wv
->value
= (char *) XSTRING (item_name
)->data
;
2392 wv
->call_data
= (void *) &XVECTOR (menu_items
)->contents
[i
];
2393 wv
->enabled
= !NILP (enable
);
2396 if (! boundary_seen
)
2400 i
+= MENU_ITEMS_ITEM_LENGTH
;
2403 /* If the boundary was not specified,
2404 by default put half on the left and half on the right. */
2405 if (! boundary_seen
)
2406 left_count
= nb_buttons
- nb_buttons
/ 2;
2408 wv
= xmalloc_widget_value ();
2409 wv
->name
= dialog_name
;
2411 /* Dialog boxes use a really stupid name encoding
2412 which specifies how many buttons to use
2413 and how many buttons are on the right.
2414 The Q means something also. */
2415 dialog_name
[0] = 'Q';
2416 dialog_name
[1] = '0' + nb_buttons
;
2417 dialog_name
[2] = 'B';
2418 dialog_name
[3] = 'R';
2419 /* Number of buttons to put on the right. */
2420 dialog_name
[4] = '0' + nb_buttons
- left_count
;
2422 wv
->contents
= first_wv
;
2426 /* Actually create the dialog. */
2427 dialog_id
= widget_id_tick
++;
2428 menu
= lw_create_widget (first_wv
->name
, "dialog", dialog_id
, first_wv
,
2429 f
->output_data
.x
->widget
, 1, 0,
2430 dialog_selection_callback
, 0, 0);
2431 lw_modify_all_widgets (dialog_id
, first_wv
->contents
, True
);
2432 /* Free the widget_value objects we used to specify the contents. */
2433 free_menubar_widget_value_tree (first_wv
);
2435 /* No selection has been chosen yet. */
2436 menu_item_selection
= 0;
2438 /* Display the menu. */
2439 lw_pop_up_all_widgets (dialog_id
);
2440 popup_activated_flag
= 1;
2442 /* Process events that apply to the menu. */
2443 popup_get_selection ((XEvent
*) 0, FRAME_X_DISPLAY_INFO (f
), dialog_id
);
2445 lw_destroy_all_widgets (dialog_id
);
2447 /* Find the selected item, and its pane, to return
2448 the proper value. */
2449 if (menu_item_selection
!= 0)
2455 while (i
< menu_items_used
)
2459 if (EQ (XVECTOR (menu_items
)->contents
[i
], Qt
))
2462 = XVECTOR (menu_items
)->contents
[i
+ MENU_ITEMS_PANE_PREFIX
];
2463 i
+= MENU_ITEMS_PANE_LENGTH
;
2465 else if (EQ (XVECTOR (menu_items
)->contents
[i
], Qquote
))
2467 /* This is the boundary between left-side elts and
2474 = XVECTOR (menu_items
)->contents
[i
+ MENU_ITEMS_ITEM_VALUE
];
2475 if (menu_item_selection
== &XVECTOR (menu_items
)->contents
[i
])
2479 entry
= Fcons (entry
, Qnil
);
2481 entry
= Fcons (prefix
, entry
);
2485 i
+= MENU_ITEMS_ITEM_LENGTH
;
2493 #else /* not USE_X_TOOLKIT */
2495 /* The frame of the last activated non-toolkit menu bar.
2496 Used to generate menu help events. */
2498 static struct frame
*menu_help_frame
;
2501 /* Show help HELP_STRING, or clear help if HELP_STRING is null.
2503 PANE is the pane number, and ITEM is the menu item number in
2504 the menu (currently not used).
2506 This cannot be done with generating a HELP_EVENT because
2507 XMenuActivate contains a loop that doesn't let Emacs process
2511 menu_help_callback (help_string
, pane
, item
)
2515 extern Lisp_Object Qmenu_item
;
2516 Lisp_Object
*first_item
;
2517 Lisp_Object pane_name
;
2518 Lisp_Object menu_object
;
2520 first_item
= XVECTOR (menu_items
)->contents
;
2521 if (EQ (first_item
[0], Qt
))
2522 pane_name
= first_item
[MENU_ITEMS_PANE_NAME
];
2523 else if (EQ (first_item
[0], Qquote
))
2524 /* This shouldn't happen, see xmenu_show. */
2525 pane_name
= build_string ("");
2527 pane_name
= first_item
[MENU_ITEMS_ITEM_NAME
];
2529 /* (menu-item MENU-NAME PANE-NUMBER) */
2530 menu_object
= Fcons (Qmenu_item
,
2532 Fcons (make_number (pane
), Qnil
)));
2533 show_help_echo (help_string
? build_string (help_string
) : Qnil
,
2534 Qnil
, menu_object
, make_number (item
), 1);
2539 xmenu_show (f
, x
, y
, for_click
, keymaps
, title
, error
)
2549 int pane
, selidx
, lpane
, status
;
2550 Lisp_Object entry
, pane_prefix
;
2552 int ulx
, uly
, width
, height
;
2553 int dispwidth
, dispheight
;
2557 unsigned int dummy_uint
;
2560 if (menu_items_n_panes
== 0)
2563 if (menu_items_used
<= MENU_ITEMS_PANE_LENGTH
)
2565 *error
= "Empty menu";
2569 /* Figure out which root window F is on. */
2570 XGetGeometry (FRAME_X_DISPLAY (f
), FRAME_X_WINDOW (f
), &root
,
2571 &dummy_int
, &dummy_int
, &dummy_uint
, &dummy_uint
,
2572 &dummy_uint
, &dummy_uint
);
2574 /* Make the menu on that window. */
2575 menu
= XMenuCreate (FRAME_X_DISPLAY (f
), root
, "emacs");
2578 *error
= "Can't create menu";
2582 #ifdef HAVE_X_WINDOWS
2583 /* Adjust coordinates to relative to the outer (window manager) window. */
2586 int win_x
= 0, win_y
= 0;
2588 /* Find the position of the outside upper-left corner of
2589 the inner window, with respect to the outer window. */
2590 if (f
->output_data
.x
->parent_desc
!= FRAME_X_DISPLAY_INFO (f
)->root_window
)
2593 XTranslateCoordinates (FRAME_X_DISPLAY (f
),
2595 /* From-window, to-window. */
2596 f
->output_data
.x
->window_desc
,
2597 f
->output_data
.x
->parent_desc
,
2599 /* From-position, to-position. */
2600 0, 0, &win_x
, &win_y
,
2602 /* Child of window. */
2609 #endif /* HAVE_X_WINDOWS */
2611 /* Adjust coordinates to be root-window-relative. */
2612 x
+= f
->output_data
.x
->left_pos
;
2613 y
+= f
->output_data
.x
->top_pos
;
2615 /* Create all the necessary panes and their items. */
2617 while (i
< menu_items_used
)
2619 if (EQ (XVECTOR (menu_items
)->contents
[i
], Qt
))
2621 /* Create a new pane. */
2622 Lisp_Object pane_name
, prefix
;
2625 pane_name
= XVECTOR (menu_items
)->contents
[i
+ MENU_ITEMS_PANE_NAME
];
2626 prefix
= XVECTOR (menu_items
)->contents
[i
+ MENU_ITEMS_PANE_PREFIX
];
2627 pane_string
= (NILP (pane_name
)
2628 ? "" : (char *) XSTRING (pane_name
)->data
);
2629 if (keymaps
&& !NILP (prefix
))
2632 lpane
= XMenuAddPane (FRAME_X_DISPLAY (f
), menu
, pane_string
, TRUE
);
2633 if (lpane
== XM_FAILURE
)
2635 XMenuDestroy (FRAME_X_DISPLAY (f
), menu
);
2636 *error
= "Can't create pane";
2639 i
+= MENU_ITEMS_PANE_LENGTH
;
2641 /* Find the width of the widest item in this pane. */
2644 while (j
< menu_items_used
)
2647 item
= XVECTOR (menu_items
)->contents
[j
];
2655 width
= STRING_BYTES (XSTRING (item
));
2656 if (width
> maxwidth
)
2659 j
+= MENU_ITEMS_ITEM_LENGTH
;
2662 /* Ignore a nil in the item list.
2663 It's meaningful only for dialog boxes. */
2664 else if (EQ (XVECTOR (menu_items
)->contents
[i
], Qquote
))
2668 /* Create a new item within current pane. */
2669 Lisp_Object item_name
, enable
, descrip
, help
;
2670 unsigned char *item_data
;
2673 item_name
= XVECTOR (menu_items
)->contents
[i
+ MENU_ITEMS_ITEM_NAME
];
2674 enable
= XVECTOR (menu_items
)->contents
[i
+ MENU_ITEMS_ITEM_ENABLE
];
2676 = XVECTOR (menu_items
)->contents
[i
+ MENU_ITEMS_ITEM_EQUIV_KEY
];
2677 help
= XVECTOR (menu_items
)->contents
[i
+ MENU_ITEMS_ITEM_HELP
];
2678 help_string
= STRINGP (help
) ? XSTRING (help
)->data
: NULL
;
2680 if (!NILP (descrip
))
2682 int gap
= maxwidth
- STRING_BYTES (XSTRING (item_name
));
2685 spacer
= Fmake_string (make_number (gap
), make_number (' '));
2686 item_name
= concat2 (item_name
, spacer
);
2687 item_name
= concat2 (item_name
, descrip
);
2688 item_data
= XSTRING (item_name
)->data
;
2690 /* if alloca is fast, use that to make the space,
2691 to reduce gc needs. */
2693 = (unsigned char *) alloca (maxwidth
2694 + STRING_BYTES (XSTRING (descrip
)) + 1);
2695 bcopy (XSTRING (item_name
)->data
, item_data
,
2696 STRING_BYTES (XSTRING (item_name
)));
2697 for (j
= XSTRING (item_name
)->size
; j
< maxwidth
; j
++)
2699 bcopy (XSTRING (descrip
)->data
, item_data
+ j
,
2700 STRING_BYTES (XSTRING (descrip
)));
2701 item_data
[j
+ STRING_BYTES (XSTRING (descrip
))] = 0;
2705 item_data
= XSTRING (item_name
)->data
;
2707 if (XMenuAddSelection (FRAME_X_DISPLAY (f
),
2708 menu
, lpane
, 0, item_data
,
2709 !NILP (enable
), help_string
)
2712 XMenuDestroy (FRAME_X_DISPLAY (f
), menu
);
2713 *error
= "Can't add selection to menu";
2716 i
+= MENU_ITEMS_ITEM_LENGTH
;
2720 /* All set and ready to fly. */
2721 XMenuRecompute (FRAME_X_DISPLAY (f
), menu
);
2722 dispwidth
= DisplayWidth (FRAME_X_DISPLAY (f
),
2723 XScreenNumberOfScreen (FRAME_X_SCREEN (f
)));
2724 dispheight
= DisplayHeight (FRAME_X_DISPLAY (f
),
2725 XScreenNumberOfScreen (FRAME_X_SCREEN (f
)));
2726 x
= min (x
, dispwidth
);
2727 y
= min (y
, dispheight
);
2730 XMenuLocate (FRAME_X_DISPLAY (f
), menu
, 0, 0, x
, y
,
2731 &ulx
, &uly
, &width
, &height
);
2732 if (ulx
+width
> dispwidth
)
2734 x
-= (ulx
+ width
) - dispwidth
;
2735 ulx
= dispwidth
- width
;
2737 if (uly
+height
> dispheight
)
2739 y
-= (uly
+ height
) - dispheight
;
2740 uly
= dispheight
- height
;
2742 if (ulx
< 0) x
-= ulx
;
2743 if (uly
< 0) y
-= uly
;
2745 XMenuSetAEQ (menu
, TRUE
);
2746 XMenuSetFreeze (menu
, TRUE
);
2749 /* Help display under X won't work because XMenuActivate contains
2750 a loop that doesn't give Emacs a chance to process it. */
2751 menu_help_frame
= f
;
2752 status
= XMenuActivate (FRAME_X_DISPLAY (f
), menu
, &pane
, &selidx
,
2753 x
, y
, ButtonReleaseMask
, &datap
,
2754 menu_help_callback
);
2757 #ifdef HAVE_X_WINDOWS
2758 /* Assume the mouse has moved out of the X window.
2759 If it has actually moved in, we will get an EnterNotify. */
2760 x_mouse_leave (FRAME_X_DISPLAY_INFO (f
));
2767 fprintf (stderr
, "pane= %d line = %d\n", panes
, selidx
);
2770 /* Find the item number SELIDX in pane number PANE. */
2772 while (i
< menu_items_used
)
2774 if (EQ (XVECTOR (menu_items
)->contents
[i
], Qt
))
2778 = XVECTOR (menu_items
)->contents
[i
+ MENU_ITEMS_PANE_PREFIX
];
2780 i
+= MENU_ITEMS_PANE_LENGTH
;
2789 = XVECTOR (menu_items
)->contents
[i
+ MENU_ITEMS_ITEM_VALUE
];
2792 entry
= Fcons (entry
, Qnil
);
2793 if (!NILP (pane_prefix
))
2794 entry
= Fcons (pane_prefix
, entry
);
2800 i
+= MENU_ITEMS_ITEM_LENGTH
;
2806 *error
= "Can't activate menu";
2812 XMenuDestroy (FRAME_X_DISPLAY (f
), menu
);
2814 #ifdef HAVE_X_WINDOWS
2815 /* State that no mouse buttons are now held.
2816 (The oldXMenu code doesn't track this info for us.)
2817 That is not necessarily true, but the fiction leads to reasonable
2818 results, and it is a pain to ask which are actually held now. */
2819 FRAME_X_DISPLAY_INFO (f
)->grabbed
= 0;
2825 #endif /* not USE_X_TOOLKIT */
2827 #endif /* HAVE_MENUS */
2832 staticpro (&menu_items
);
2835 Qdebug_on_next_call
= intern ("debug-on-next-call");
2836 staticpro (&Qdebug_on_next_call
);
2838 DEFVAR_LISP ("menu-updating-frame", &Vmenu_updating_frame
,
2839 "Frame for which we are updating a menu.\n\
2840 The enable predicate for a menu command should check this variable.");
2841 Vmenu_updating_frame
= Qnil
;
2843 #ifdef USE_X_TOOLKIT
2844 widget_id_tick
= (1<<16);
2845 next_menubar_widget_id
= 1;
2848 defsubr (&Sx_popup_menu
);
2850 defsubr (&Sx_popup_dialog
);