1 /* X Communication module for terminals which understand the X protocol.
2 Copyright (C) 1986, 1988, 1993, 1994 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, 675 Mass Ave, Cambridge, MA 02139, USA. */
20 /* X pop-up deck-of-cards menu facility for gnuemacs.
22 * Written by Jon Arnold and Roman Budzianowski
23 * Mods and rewrite by Robert Krawitz
27 /* Modified by Fred Pierresteguy on December 93
28 to make the popup menus and menubar use the Xt. */
30 /* Rewritten for clarity and GC protection by rms in Feb 94. */
32 /* On 4.3 this loses if it comes after xterm.h. */
38 #include "termhooks.h"
42 #include "blockinput.h"
50 /* This may include sys/types.h, and that somehow loses
51 if this is not done before the other system files. */
55 /* Load sys/types.h if not already loaded.
56 In some systems loading it twice is suicidal. */
58 #include <sys/types.h>
61 #include "dispextern.h"
66 #include <X11/IntrinsicP.h>
67 #include <X11/CoreP.h>
68 #include <X11/StringDefs.h>
69 #include <X11/Shell.h>
70 #include "../lwlib/lwlib.h"
71 #else /* not USE_X_TOOLKIT */
72 #include "../oldXMenu/XMenu.h"
73 #endif /* not USE_X_TOOLKIT */
74 #endif /* HAVE_X_WINDOWS */
76 #define min(x,y) (((x) < (y)) ? (x) : (y))
77 #define max(x,y) (((x) > (y)) ? (x) : (y))
84 extern Lisp_Object Qmenu_enable
;
85 extern Lisp_Object Qmenu_bar
;
86 extern Lisp_Object Qmouse_click
, Qevent_kind
;
89 extern void process_expose_from_menu ();
90 extern XtAppContext Xt_app_con
;
92 static Lisp_Object
xdialog_show ();
93 void popup_get_selection ();
96 static Lisp_Object
xmenu_show ();
97 static void keymap_panes ();
98 static void single_keymap_panes ();
99 static void list_of_panes ();
100 static void list_of_items ();
102 /* This holds a Lisp vector that holds the results of decoding
103 the keymaps or alist-of-alists that specify a menu.
105 It describes the panes and items within the panes.
107 Each pane is described by 3 elements in the vector:
108 t, the pane name, the pane's prefix key.
109 Then follow the pane's items, with 5 elements per item:
110 the item string, the enable flag, the item's value,
111 the definition, and the equivalent keyboard key's description string.
113 In some cases, multiple levels of menus may be described.
114 A single vector slot containing nil indicates the start of a submenu.
115 A single vector slot containing lambda indicates the end of a submenu.
116 The submenu follows a menu item which is the way to reach the submenu.
118 A single vector slot containing quote indicates that the
119 following items should appear on the right of a dialog box.
121 Using a Lisp vector to hold this information while we decode it
122 takes care of protecting all the data from GC. */
124 #define MENU_ITEMS_PANE_NAME 1
125 #define MENU_ITEMS_PANE_PREFIX 2
126 #define MENU_ITEMS_PANE_LENGTH 3
128 #define MENU_ITEMS_ITEM_NAME 0
129 #define MENU_ITEMS_ITEM_ENABLE 1
130 #define MENU_ITEMS_ITEM_VALUE 2
131 #define MENU_ITEMS_ITEM_EQUIV_KEY 3
132 #define MENU_ITEMS_ITEM_DEFINITION 4
133 #define MENU_ITEMS_ITEM_LENGTH 5
135 static Lisp_Object menu_items
;
137 /* Number of slots currently allocated in menu_items. */
138 static int menu_items_allocated
;
140 /* This is the index in menu_items of the first empty slot. */
141 static int menu_items_used
;
143 /* The number of panes currently recorded in menu_items,
144 excluding those within submenus. */
145 static int menu_items_n_panes
;
147 /* Current depth within submenus. */
148 static int menu_items_submenu_depth
;
150 /* Flag which when set indicates a dialog or menu has been posted by
151 Xt on behalf of one of the widget sets. */
152 static int popup_activated_flag
;
154 /* This holds a Lisp vector
155 which contains frames that have menu bars.
156 Each frame that has a menu bar is found at some index in this vector
157 and the menu bar widget refers to the frame through that index. */
158 static Lisp_Object frame_vector
;
160 /* Return the index of FRAME in frame_vector.
161 If FRAME isn't in frame_vector yet, put it in,
162 lengthening the vector if necessary. */
165 frame_vector_add_frame (f
)
168 int length
= XVECTOR (frame_vector
)->size
;
170 Lisp_Object
new, frame
;
172 XSETFRAME (frame
, f
);
174 for (i
= 0; i
< length
; i
++)
176 if (EQ (frame
, XVECTOR (frame_vector
)->contents
[i
]))
178 if (NILP (XVECTOR (frame_vector
)->contents
[i
]))
184 XVECTOR (frame_vector
)->contents
[empty
] = frame
;
188 new = Fmake_vector (make_number (length
* 2), Qnil
);
189 bcopy (XVECTOR (frame_vector
)->contents
,
190 XVECTOR (new)->contents
, sizeof (Lisp_Object
) * length
);
192 XVECTOR (frame_vector
)->contents
[length
] = frame
;
196 /* Initialize the menu_items structure if we haven't already done so.
197 Also mark it as currently empty. */
202 if (NILP (menu_items
))
204 menu_items_allocated
= 60;
205 menu_items
= Fmake_vector (make_number (menu_items_allocated
), Qnil
);
209 menu_items_n_panes
= 0;
210 menu_items_submenu_depth
= 0;
213 /* Call at the end of generating the data in menu_items.
214 This fills in the number of items in the last pane. */
221 /* Call when finished using the data for the current menu
225 discard_menu_items ()
227 /* Free the structure if it is especially large.
228 Otherwise, hold on to it, to save time. */
229 if (menu_items_allocated
> 200)
232 menu_items_allocated
= 0;
236 /* Make the menu_items vector twice as large. */
242 int old_size
= menu_items_allocated
;
245 menu_items_allocated
*= 2;
246 menu_items
= Fmake_vector (make_number (menu_items_allocated
), Qnil
);
247 bcopy (XVECTOR (old
)->contents
, XVECTOR (menu_items
)->contents
,
248 old_size
* sizeof (Lisp_Object
));
251 /* Begin a submenu. */
254 push_submenu_start ()
256 if (menu_items_used
+ 1 > menu_items_allocated
)
259 XVECTOR (menu_items
)->contents
[menu_items_used
++] = Qnil
;
260 menu_items_submenu_depth
++;
268 if (menu_items_used
+ 1 > menu_items_allocated
)
271 XVECTOR (menu_items
)->contents
[menu_items_used
++] = Qlambda
;
272 menu_items_submenu_depth
--;
275 /* Indicate boundary between left and right. */
278 push_left_right_boundary ()
280 if (menu_items_used
+ 1 > menu_items_allocated
)
283 XVECTOR (menu_items
)->contents
[menu_items_used
++] = Qquote
;
286 /* Start a new menu pane in menu_items..
287 NAME is the pane name. PREFIX_VEC is a prefix key for this pane. */
290 push_menu_pane (name
, prefix_vec
)
291 Lisp_Object name
, prefix_vec
;
293 if (menu_items_used
+ MENU_ITEMS_PANE_LENGTH
> menu_items_allocated
)
296 if (menu_items_submenu_depth
== 0)
297 menu_items_n_panes
++;
298 XVECTOR (menu_items
)->contents
[menu_items_used
++] = Qt
;
299 XVECTOR (menu_items
)->contents
[menu_items_used
++] = name
;
300 XVECTOR (menu_items
)->contents
[menu_items_used
++] = prefix_vec
;
303 /* Push one menu item into the current pane.
304 NAME is the string to display. ENABLE if non-nil means
305 this item can be selected. KEY is the key generated by
306 choosing this item, or nil if this item doesn't really have a definition.
307 DEF is the definition of this item.
308 EQUIV is the textual description of the keyboard equivalent for
309 this item (or nil if none). */
312 push_menu_item (name
, enable
, key
, def
, equiv
)
313 Lisp_Object name
, enable
, key
, def
, equiv
;
315 if (menu_items_used
+ MENU_ITEMS_ITEM_LENGTH
> menu_items_allocated
)
318 XVECTOR (menu_items
)->contents
[menu_items_used
++] = name
;
319 XVECTOR (menu_items
)->contents
[menu_items_used
++] = enable
;
320 XVECTOR (menu_items
)->contents
[menu_items_used
++] = key
;
321 XVECTOR (menu_items
)->contents
[menu_items_used
++] = equiv
;
322 XVECTOR (menu_items
)->contents
[menu_items_used
++] = def
;
325 /* Figure out the current keyboard equivalent of a menu item ITEM1.
326 The item string for menu display should be ITEM_STRING.
327 Store the equivalent keyboard key sequence's
328 textual description into *DESCRIP_PTR.
329 Also cache them in the item itself.
330 Return the real definition to execute. */
333 menu_item_equiv_key (item_string
, item1
, descrip_ptr
)
334 Lisp_Object item_string
;
336 Lisp_Object
*descrip_ptr
;
338 /* This is the real definition--the function to run. */
340 /* This is the sublist that records cached equiv key data
341 so we can save time. */
342 Lisp_Object cachelist
;
343 /* These are the saved equivalent keyboard key sequence
344 and its key-description. */
345 Lisp_Object savedkey
, descrip
;
348 struct gcpro gcpro1
, gcpro2
, gcpro3
, gcpro4
;
350 /* If a help string follows the item string, skip it. */
351 if (CONSP (XCONS (item1
)->cdr
)
352 && STRINGP (XCONS (XCONS (item1
)->cdr
)->car
))
353 item1
= XCONS (item1
)->cdr
;
357 /* Get out the saved equivalent-keyboard-key info. */
358 cachelist
= savedkey
= descrip
= Qnil
;
359 if (CONSP (def
) && CONSP (XCONS (def
)->car
)
360 && (NILP (XCONS (XCONS (def
)->car
)->car
)
361 || VECTORP (XCONS (XCONS (def
)->car
)->car
)))
363 cachelist
= XCONS (def
)->car
;
364 def
= XCONS (def
)->cdr
;
365 savedkey
= XCONS (cachelist
)->car
;
366 descrip
= XCONS (cachelist
)->cdr
;
369 GCPRO4 (def
, def1
, savedkey
, descrip
);
371 /* Is it still valid? */
373 if (!NILP (savedkey
))
374 def1
= Fkey_binding (savedkey
, Qnil
);
375 /* If not, update it. */
377 /* If the command is an alias for another
378 (such as easymenu.el and lmenu.el set it up),
379 check if the original command matches the cached command. */
380 && !(SYMBOLP (def
) && SYMBOLP (XSYMBOL (def
)->function
)
381 && EQ (def1
, XSYMBOL (def
)->function
))
382 /* If something had no key binding before, don't recheck it--
383 doing that takes too much time and makes menus too slow. */
384 && !(!NILP (cachelist
) && NILP (savedkey
)))
388 /* If the command is an alias for another
389 (such as easymenu.el and lmenu.el set it up),
390 see if the original command name has equivalent keys. */
391 if (SYMBOLP (def
) && SYMBOLP (XSYMBOL (def
)->function
))
392 savedkey
= Fwhere_is_internal (XSYMBOL (def
)->function
,
395 /* Otherwise look up the specified command itself.
396 We don't try both, because that makes easymenu menus slow. */
397 savedkey
= Fwhere_is_internal (def
, Qnil
, Qt
, Qnil
);
399 if (!NILP (savedkey
))
401 descrip
= Fkey_description (savedkey
);
402 descrip
= concat2 (make_string (" (", 3), descrip
);
403 descrip
= concat2 (descrip
, make_string (")", 1));
407 /* Cache the data we just got in a sublist of the menu binding. */
408 if (NILP (cachelist
))
410 CHECK_IMPURE (item1
);
411 XCONS (item1
)->cdr
= Fcons (Fcons (savedkey
, descrip
), def
);
415 XCONS (cachelist
)->car
= savedkey
;
416 XCONS (cachelist
)->cdr
= descrip
;
420 *descrip_ptr
= descrip
;
424 /* This is used as the handler when calling internal_condition_case_1. */
427 menu_item_enabled_p_1 (arg
)
433 /* Return non-nil if the command DEF is enabled when used as a menu item.
434 This is based on looking for a menu-enable property.
435 If NOTREAL is set, don't bother really computing this. */
438 menu_item_enabled_p (def
, notreal
)
442 Lisp_Object enabled
, tem
;
449 /* No property, or nil, means enable.
450 Otherwise, enable if value is not nil. */
451 tem
= Fget (def
, Qmenu_enable
);
453 /* (condition-case nil (eval tem)
455 enabled
= internal_condition_case_1 (Feval
, tem
, Qerror
,
456 menu_item_enabled_p_1
);
461 /* Look through KEYMAPS, a vector of keymaps that is NMAPS long,
462 and generate menu panes for them in menu_items.
463 If NOTREAL is nonzero,
464 don't bother really computing whether an item is enabled. */
467 keymap_panes (keymaps
, nmaps
, notreal
)
468 Lisp_Object
*keymaps
;
476 /* Loop over the given keymaps, making a pane for each map.
477 But don't make a pane that is empty--ignore that map instead.
478 P is the number of panes we have made so far. */
479 for (mapno
= 0; mapno
< nmaps
; mapno
++)
480 single_keymap_panes (keymaps
[mapno
], Qnil
, Qnil
, notreal
);
482 finish_menu_items ();
485 /* This is a recursive subroutine of keymap_panes.
486 It handles one keymap, KEYMAP.
487 The other arguments are passed along
488 or point to local variables of the previous function.
489 If NOTREAL is nonzero,
490 don't bother really computing whether an item is enabled. */
493 single_keymap_panes (keymap
, pane_name
, prefix
, notreal
)
495 Lisp_Object pane_name
;
499 Lisp_Object pending_maps
;
500 Lisp_Object tail
, item
, item1
, item_string
, table
;
501 struct gcpro gcpro1
, gcpro2
, gcpro3
, gcpro4
;
505 push_menu_pane (pane_name
, prefix
);
507 for (tail
= keymap
; CONSP (tail
); tail
= XCONS (tail
)->cdr
)
509 /* Look at each key binding, and if it has a menu string,
510 make a menu item from it. */
511 item
= XCONS (tail
)->car
;
514 item1
= XCONS (item
)->cdr
;
517 item_string
= XCONS (item1
)->car
;
518 if (STRINGP (item_string
))
520 /* This is the real definition--the function to run. */
522 /* These are the saved equivalent keyboard key sequence
523 and its key-description. */
525 Lisp_Object tem
, enabled
;
527 /* GCPRO because ...enabled_p will call eval
528 and ..._equiv_key may autoload something.
529 Protecting KEYMAP preserves everything we use;
530 aside from that, must protect whatever might be
531 a string. Since there's no GCPRO5, we refetch
532 item_string instead of protecting it. */
533 descrip
= def
= Qnil
;
534 GCPRO4 (keymap
, pending_maps
, def
, descrip
);
536 def
= menu_item_equiv_key (item_string
, item1
, &descrip
);
537 enabled
= menu_item_enabled_p (def
, notreal
);
541 item_string
= XCONS (item1
)->car
;
543 tem
= Fkeymapp (def
);
544 if (XSTRING (item_string
)->data
[0] == '@' && !NILP (tem
))
545 pending_maps
= Fcons (Fcons (def
, Fcons (item_string
, XCONS (item
)->car
)),
550 GCPRO4 (keymap
, pending_maps
, descrip
, item_string
);
551 submap
= get_keymap_1 (def
, 0, 1);
553 #ifndef USE_X_TOOLKIT
554 /* Indicate visually that this is a submenu. */
556 item_string
= concat2 (item_string
,
557 build_string (" >"));
559 /* If definition is nil, pass nil as the key. */
560 push_menu_item (item_string
, enabled
,
561 XCONS (item
)->car
, def
,
564 /* Display a submenu using the toolkit. */
567 push_submenu_start ();
568 single_keymap_panes (submap
, Qnil
,
569 XCONS (item
)->car
, notreal
);
577 else if (VECTORP (item
))
579 /* Loop over the char values represented in the vector. */
580 int len
= XVECTOR (item
)->size
;
582 for (c
= 0; c
< len
; c
++)
584 Lisp_Object character
;
585 XSETFASTINT (character
, c
);
586 item1
= XVECTOR (item
)->contents
[c
];
589 item_string
= XCONS (item1
)->car
;
590 if (STRINGP (item_string
))
594 /* These are the saved equivalent keyboard key sequence
595 and its key-description. */
597 Lisp_Object tem
, enabled
;
599 /* GCPRO because ...enabled_p will call eval
600 and ..._equiv_key may autoload something.
601 Protecting KEYMAP preserves everything we use;
602 aside from that, must protect whatever might be
603 a string. Since there's no GCPRO5, we refetch
604 item_string instead of protecting it. */
605 GCPRO4 (keymap
, pending_maps
, def
, descrip
);
606 descrip
= def
= Qnil
;
608 def
= menu_item_equiv_key (item_string
, item1
, &descrip
);
609 enabled
= menu_item_enabled_p (def
, notreal
);
613 item_string
= XCONS (item1
)->car
;
615 tem
= Fkeymapp (def
);
616 if (XSTRING (item_string
)->data
[0] == '@' && !NILP (tem
))
617 pending_maps
= Fcons (Fcons (def
, Fcons (item_string
, character
)),
622 GCPRO4 (keymap
, pending_maps
, descrip
, item_string
);
623 submap
= get_keymap_1 (def
, 0, 1);
625 #ifndef USE_X_TOOLKIT
627 item_string
= concat2 (item_string
,
628 build_string (" >"));
630 /* If definition is nil, pass nil as the key. */
631 push_menu_item (item_string
, enabled
, character
,
636 push_submenu_start ();
637 single_keymap_panes (submap
, Qnil
,
649 /* Process now any submenus which want to be panes at this level. */
650 while (!NILP (pending_maps
))
652 Lisp_Object elt
, eltcdr
, string
;
653 elt
= Fcar (pending_maps
);
654 eltcdr
= XCONS (elt
)->cdr
;
655 string
= XCONS (eltcdr
)->car
;
656 /* We no longer discard the @ from the beginning of the string here.
657 Instead, we do this in xmenu_show. */
658 single_keymap_panes (Fcar (elt
), string
,
659 XCONS (eltcdr
)->cdr
, notreal
);
660 pending_maps
= Fcdr (pending_maps
);
664 /* Push all the panes and items of a menu decsribed by the
665 alist-of-alists MENU.
666 This handles old-fashioned calls to x-popup-menu. */
676 for (tail
= menu
; !NILP (tail
); tail
= Fcdr (tail
))
678 Lisp_Object elt
, pane_name
, pane_data
;
680 pane_name
= Fcar (elt
);
681 CHECK_STRING (pane_name
, 0);
682 push_menu_pane (pane_name
, Qnil
);
683 pane_data
= Fcdr (elt
);
684 CHECK_CONS (pane_data
, 0);
685 list_of_items (pane_data
);
688 finish_menu_items ();
691 /* Push the items in a single pane defined by the alist PANE. */
697 Lisp_Object tail
, item
, item1
;
699 for (tail
= pane
; !NILP (tail
); tail
= Fcdr (tail
))
703 push_menu_item (item
, Qnil
, Qnil
, Qt
, Qnil
);
704 else if (NILP (item
))
705 push_left_right_boundary ();
708 CHECK_CONS (item
, 0);
710 CHECK_STRING (item1
, 1);
711 push_menu_item (item1
, Qt
, Fcdr (item
), Qt
, Qnil
);
716 DEFUN ("x-popup-menu", Fx_popup_menu
, Sx_popup_menu
, 2, 2, 0,
717 "Pop up a deck-of-cards menu and return user's selection.\n\
718 POSITION is a position specification. This is either a mouse button event\n\
719 or a list ((XOFFSET YOFFSET) WINDOW)\n\
720 where XOFFSET and YOFFSET are positions in pixels from the top left\n\
721 corner of WINDOW's frame. (WINDOW may be a frame object instead of a window.)\n\
722 This controls the position of the center of the first line\n\
723 in the first pane of the menu, not the top left of the menu as a whole.\n\
724 If POSITION is t, it means to use the current mouse position.\n\
726 MENU is a specifier for a menu. For the simplest case, MENU is a keymap.\n\
727 The menu items come from key bindings that have a menu string as well as\n\
728 a definition; actually, the \"definition\" in such a key binding looks like\n\
729 \(STRING . REAL-DEFINITION). To give the menu a title, put a string into\n\
730 the keymap as a top-level element.\n\n\
731 You can also use a list of keymaps as MENU.\n\
732 Then each keymap makes a separate pane.\n\
733 When MENU is a keymap or a list of keymaps, the return value\n\
734 is a list of events.\n\n\
735 Alternatively, you can specify a menu of multiple panes\n\
736 with a list of the form (TITLE PANE1 PANE2...),\n\
737 where each pane is a list of form (TITLE ITEM1 ITEM2...).\n\
738 Each ITEM is normally a cons cell (STRING . VALUE);\n\
739 but a string can appear as an item--that makes a nonselectable line\n\
741 With this form of menu, the return value is VALUE from the chosen item.\n\
743 If POSITION is nil, don't display the menu at all, just precalculate the\n\
744 cached information about equivalent key sequences.")
746 Lisp_Object position
, menu
;
748 int number_of_panes
, panes
;
749 Lisp_Object keymap
, tem
;
753 Lisp_Object selection
;
756 Lisp_Object x
, y
, window
;
761 if (! NILP (position
))
765 /* Decode the first argument: find the window and the coordinates. */
766 if (EQ (position
, Qt
)
767 || (CONSP (position
) && EQ (XCONS (position
)->car
, Qmenu_bar
)))
769 /* Use the mouse's current position. */
770 FRAME_PTR new_f
= selected_frame
;
771 Lisp_Object bar_window
;
775 if (mouse_position_hook
)
776 (*mouse_position_hook
) (&new_f
, 1, &bar_window
,
777 &part
, &x
, &y
, &time
);
779 XSETFRAME (window
, new_f
);
782 window
= selected_window
;
789 tem
= Fcar (position
);
792 window
= Fcar (Fcdr (position
));
794 y
= Fcar (Fcdr (tem
));
799 tem
= Fcar (Fcdr (position
)); /* EVENT_START (position) */
800 window
= Fcar (tem
); /* POSN_WINDOW (tem) */
801 tem
= Fcar (Fcdr (Fcdr (tem
))); /* POSN_WINDOW_POSN (tem) */
810 /* Decode where to put the menu. */
818 else if (WINDOWP (window
))
820 CHECK_LIVE_WINDOW (window
, 0);
821 f
= XFRAME (WINDOW_FRAME (XWINDOW (window
)));
823 xpos
= (FONT_WIDTH (f
->display
.x
->font
) * XWINDOW (window
)->left
);
824 ypos
= (f
->display
.x
->line_height
* XWINDOW (window
)->top
);
827 /* ??? Not really clean; should be CHECK_WINDOW_OR_FRAME,
828 but I don't want to make one now. */
829 CHECK_WINDOW (window
, 0);
838 /* Decode the menu items from what was specified. */
840 keymap
= Fkeymapp (menu
);
843 tem
= Fkeymapp (Fcar (menu
));
846 /* We were given a keymap. Extract menu info from the keymap. */
848 keymap
= get_keymap (menu
);
850 /* Extract the detailed info to make one pane. */
851 keymap_panes (&menu
, 1, NILP (position
));
853 /* Search for a string appearing directly as an element of the keymap.
854 That string is the title of the menu. */
855 prompt
= map_prompt (keymap
);
857 /* Make that be the pane title of the first pane. */
858 if (!NILP (prompt
) && menu_items_n_panes
>= 0)
859 XVECTOR (menu_items
)->contents
[MENU_ITEMS_PANE_NAME
] = prompt
;
863 else if (!NILP (tem
))
865 /* We were given a list of keymaps. */
866 int nmaps
= XFASTINT (Flength (menu
));
868 = (Lisp_Object
*) alloca (nmaps
* sizeof (Lisp_Object
));
873 /* The first keymap that has a prompt string
874 supplies the menu title. */
875 for (tem
= menu
, i
= 0; CONSP (tem
); tem
= Fcdr (tem
))
879 maps
[i
++] = keymap
= get_keymap (Fcar (tem
));
881 prompt
= map_prompt (keymap
);
882 if (NILP (title
) && !NILP (prompt
))
886 /* Extract the detailed info to make one pane. */
887 keymap_panes (maps
, nmaps
, NILP (position
));
889 /* Make the title be the pane title of the first pane. */
890 if (!NILP (title
) && menu_items_n_panes
>= 0)
891 XVECTOR (menu_items
)->contents
[MENU_ITEMS_PANE_NAME
] = title
;
897 /* We were given an old-fashioned menu. */
899 CHECK_STRING (title
, 1);
901 list_of_panes (Fcdr (menu
));
908 discard_menu_items ();
913 /* Display them in a menu. */
916 selection
= xmenu_show (f
, xpos
, ypos
, for_click
,
917 keymaps
, title
, &error_name
);
920 discard_menu_items ();
924 if (error_name
) error (error_name
);
928 DEFUN ("x-popup-dialog", Fx_popup_dialog
, Sx_popup_dialog
, 2, 2, 0,
929 "Pop up a dialog box and return user's selection.\n\
930 POSITION specifies which frame to use.\n\
931 This is normally a mouse button event or a window or frame.\n\
932 If POSITION is t, it means to use the frame the mouse is on.\n\
933 The dialog box appears in the middle of the specified frame.\n\
935 CONTENTS specifies the alternatives to display in the dialog box.\n\
936 It is a list of the form (TITLE ITEM1 ITEM2...).\n\
937 Each ITEM is a cons cell (STRING . VALUE).\n\
938 The return value is VALUE from the chosen item.\n\n\
939 An ITEM may also be just a string--that makes a nonselectable item.\n\
940 An ITEM may also be nil--that means to put all preceding items\n\
941 on the left of the dialog box and all following items on the right.\n\
942 \(By default, approximately half appear on each side.)")
944 Lisp_Object position
, contents
;
951 /* Decode the first argument: find the window or frame to use. */
952 if (EQ (position
, Qt
))
954 #if 0 /* Using the frame the mouse is on may not be right. */
955 /* Use the mouse's current position. */
956 FRAME_PTR new_f
= selected_frame
;
957 Lisp_Object bar_window
;
962 (*mouse_position_hook
) (&new_f
, 1, &bar_window
, &part
, &x
, &y
, &time
);
965 XSETFRAME (window
, new_f
);
967 window
= selected_window
;
969 /* Decode the first argument: find the window and the coordinates. */
970 if (EQ (position
, Qt
))
971 window
= selected_window
;
973 else if (CONSP (position
))
976 tem
= Fcar (position
);
978 window
= Fcar (Fcdr (position
));
981 tem
= Fcar (Fcdr (position
)); /* EVENT_START (position) */
982 window
= Fcar (tem
); /* POSN_WINDOW (tem) */
985 else if (WINDOWP (position
) || FRAMEP (position
))
988 /* Decode where to put the menu. */
992 else if (WINDOWP (window
))
994 CHECK_LIVE_WINDOW (window
, 0);
995 f
= XFRAME (WINDOW_FRAME (XWINDOW (window
)));
998 /* ??? Not really clean; should be CHECK_WINDOW_OR_FRAME,
999 but I don't want to make one now. */
1000 CHECK_WINDOW (window
, 0);
1002 #ifndef USE_X_TOOLKIT
1003 /* Display a menu with these alternatives
1004 in the middle of frame F. */
1006 Lisp_Object x
, y
, frame
, newpos
;
1007 XSETFRAME (frame
, f
);
1008 XSETINT (x
, x_pixel_width (f
) / 2);
1009 XSETINT (y
, x_pixel_height (f
) / 2);
1010 newpos
= Fcons (Fcons (x
, Fcons (y
, Qnil
)), Fcons (frame
, Qnil
));
1012 return Fx_popup_menu (newpos
,
1013 Fcons (Fcar (contents
), Fcons (contents
, Qnil
)));
1019 Lisp_Object selection
;
1021 /* Decode the dialog items from what was specified. */
1022 title
= Fcar (contents
);
1023 CHECK_STRING (title
, 1);
1025 list_of_panes (Fcons (contents
, Qnil
));
1027 /* Display them in a dialog box. */
1029 selection
= xdialog_show (f
, 0, title
, &error_name
);
1032 discard_menu_items ();
1034 if (error_name
) error (error_name
);
1040 #ifdef USE_X_TOOLKIT
1042 /* Loop in Xt until the menu pulldown or dialog popup has been
1043 popped down (deactivated).
1045 NOTE: All calls to popup_get_selection() should be protected
1046 with BLOCK_INPUT, UNBLOCK_INPUT wrappers. */
1049 popup_get_selection (initial_event
, dpyinfo
)
1050 XEvent
*initial_event
;
1051 struct x_display_info
*dpyinfo
;
1055 /* Define a queue to save up for later unreading
1056 all X events that don't pertain to the menu. */
1060 struct event_queue
*next
;
1063 struct event_queue
*queue
= NULL
;
1064 struct event_queue
*queue_tmp
;
1067 event
= *initial_event
;
1069 XtAppNextEvent (Xt_app_con
, &event
);
1073 /* Handle expose events for editor frames right away. */
1074 if (event
.type
== Expose
)
1075 process_expose_from_menu (event
);
1076 /* Make sure we don't consider buttons grabbed after menu goes. */
1077 else if (event
.type
== ButtonRelease
1078 && dpyinfo
->display
== event
.xbutton
.display
)
1079 dpyinfo
->grabbed
&= ~(1 << event
.xbutton
.button
);
1081 /* Queue all events not for this popup,
1082 except for Expose, which we've already handled.
1083 Note that the X window is associated with the frame if this
1084 is a menu bar popup, but not if it's a dialog box. So we use
1085 x_non_menubar_window_to_frame, not x_any_window_to_frame. */
1086 if (event
.type
!= Expose
1087 && (event
.xany
.display
!= dpyinfo
->display
1088 || x_non_menubar_window_to_frame (dpyinfo
, event
.xany
.window
)))
1090 queue_tmp
= (struct event_queue
*) malloc (sizeof (struct event_queue
));
1092 if (queue_tmp
!= NULL
)
1094 queue_tmp
->event
= event
;
1095 queue_tmp
->next
= queue
;
1100 XtDispatchEvent (&event
);
1102 if (!popup_activated ())
1104 XtAppNextEvent (Xt_app_con
, &event
);
1107 /* Unread any events that we got but did not handle. */
1108 while (queue
!= NULL
)
1111 XPutBackEvent (queue_tmp
->event
.xany
.display
, &queue_tmp
->event
);
1112 queue
= queue_tmp
->next
;
1113 free ((char *)queue_tmp
);
1114 /* Cause these events to get read as soon as we UNBLOCK_INPUT. */
1115 interrupt_input_pending
= 1;
1119 /* Detect if a dialog or menu has been posted. */
1124 return popup_activated_flag
;
1128 /* This callback is invoked when the user selects a menubar cascade
1129 pushbutton, but before the pulldown menu is posted. */
1132 popup_activate_callback (widget
, id
, client_data
)
1135 XtPointer client_data
;
1137 popup_activated_flag
= 1;
1140 /* This callback is called from the menu bar pulldown menu
1141 when the user makes a selection.
1142 Figure out what the user chose
1143 and put the appropriate events into the keyboard buffer. */
1146 menubar_selection_callback (widget
, id
, client_data
)
1149 XtPointer client_data
;
1151 Lisp_Object prefix
, entry
;
1152 FRAME_PTR f
= XFRAME (XVECTOR (frame_vector
)->contents
[id
]);
1154 Lisp_Object
*subprefix_stack
;
1155 int submenu_depth
= 0;
1160 subprefix_stack
= (Lisp_Object
*) alloca (f
->menu_bar_items_used
* sizeof (Lisp_Object
));
1161 vector
= f
->menu_bar_vector
;
1164 while (i
< f
->menu_bar_items_used
)
1166 if (EQ (XVECTOR (vector
)->contents
[i
], Qnil
))
1168 subprefix_stack
[submenu_depth
++] = prefix
;
1172 else if (EQ (XVECTOR (vector
)->contents
[i
], Qlambda
))
1174 prefix
= subprefix_stack
[--submenu_depth
];
1177 else if (EQ (XVECTOR (vector
)->contents
[i
], Qt
))
1179 prefix
= XVECTOR (vector
)->contents
[i
+ MENU_ITEMS_PANE_PREFIX
];
1180 i
+= MENU_ITEMS_PANE_LENGTH
;
1184 entry
= XVECTOR (vector
)->contents
[i
+ MENU_ITEMS_ITEM_VALUE
];
1185 /* The EMACS_INT cast avoids a warning. There's no problem
1186 as long as pointers have enough bits to hold small integers. */
1187 if ((int) (EMACS_INT
) client_data
== i
)
1190 struct input_event buf
;
1193 XSETFRAME (frame
, f
);
1194 buf
.kind
= menu_bar_event
;
1195 buf
.frame_or_window
= Fcons (frame
, Fcons (Qmenu_bar
, Qnil
));
1196 kbd_buffer_store_event (&buf
);
1198 for (j
= 0; j
< submenu_depth
; j
++)
1199 if (!NILP (subprefix_stack
[j
]))
1201 buf
.kind
= menu_bar_event
;
1202 buf
.frame_or_window
= Fcons (frame
, subprefix_stack
[j
]);
1203 kbd_buffer_store_event (&buf
);
1208 buf
.kind
= menu_bar_event
;
1209 buf
.frame_or_window
= Fcons (frame
, prefix
);
1210 kbd_buffer_store_event (&buf
);
1213 buf
.kind
= menu_bar_event
;
1214 buf
.frame_or_window
= Fcons (frame
, entry
);
1215 kbd_buffer_store_event (&buf
);
1219 i
+= MENU_ITEMS_ITEM_LENGTH
;
1224 /* This callback is invoked when a dialog or menu is finished being
1225 used and has been unposted. */
1228 popup_deactivate_callback (widget
, id
, client_data
)
1231 XtPointer client_data
;
1233 popup_activated_flag
= 0;
1237 /* This recursively calls free_widget_value on the tree of widgets.
1238 It must free all data that was malloc'ed for these widget_values.
1239 In Emacs, many slots are pointers into the data of Lisp_Strings, and
1240 must be left alone. */
1243 free_menubar_widget_value_tree (wv
)
1248 wv
->name
= wv
->value
= wv
->key
= (char *) 0xDEADBEEF;
1250 if (wv
->contents
&& (wv
->contents
!= (widget_value
*)1))
1252 free_menubar_widget_value_tree (wv
->contents
);
1253 wv
->contents
= (widget_value
*) 0xDEADBEEF;
1257 free_menubar_widget_value_tree (wv
->next
);
1258 wv
->next
= (widget_value
*) 0xDEADBEEF;
1261 free_widget_value (wv
);
1265 /* Return a tree of widget_value structures for a menu bar item
1266 whose event type is ITEM_KEY (with string ITEM_NAME)
1267 and whose contents come from the list of keymaps MAPS. */
1269 static widget_value
*
1270 single_submenu (item_key
, item_name
, maps
)
1271 Lisp_Object item_key
, item_name
, maps
;
1273 widget_value
*wv
, *prev_wv
, *save_wv
, *first_wv
;
1275 int submenu_depth
= 0;
1278 Lisp_Object
*mapvec
;
1279 widget_value
**submenu_stack
;
1281 int previous_items
= menu_items_used
;
1283 length
= Flength (maps
);
1284 len
= XINT (length
);
1286 /* Convert the list MAPS into a vector MAPVEC. */
1287 mapvec
= (Lisp_Object
*) alloca (len
* sizeof (Lisp_Object
));
1288 for (i
= 0; i
< len
; i
++)
1290 mapvec
[i
] = Fcar (maps
);
1294 menu_items_n_panes
= 0;
1296 /* Loop over the given keymaps, making a pane for each map.
1297 But don't make a pane that is empty--ignore that map instead. */
1298 for (i
= 0; i
< len
; i
++)
1299 single_keymap_panes (mapvec
[i
], item_name
, item_key
, 0);
1301 /* Create a tree of widget_value objects
1302 representing the panes and their items. */
1305 = (widget_value
**) alloca (menu_items_used
* sizeof (widget_value
*));
1306 wv
= malloc_widget_value ();
1313 /* Loop over all panes and items made during this call
1314 and construct a tree of widget_value objects.
1315 Ignore the panes and items made by previous calls to
1316 single_submenu, even though those are also in menu_items. */
1318 while (i
< menu_items_used
)
1320 if (EQ (XVECTOR (menu_items
)->contents
[i
], Qnil
))
1322 submenu_stack
[submenu_depth
++] = save_wv
;
1327 else if (EQ (XVECTOR (menu_items
)->contents
[i
], Qlambda
))
1330 save_wv
= submenu_stack
[--submenu_depth
];
1333 else if (EQ (XVECTOR (menu_items
)->contents
[i
], Qt
)
1334 && submenu_depth
!= 0)
1335 i
+= MENU_ITEMS_PANE_LENGTH
;
1336 /* Ignore a nil in the item list.
1337 It's meaningful only for dialog boxes. */
1338 else if (EQ (XVECTOR (menu_items
)->contents
[i
], Qquote
))
1340 else if (EQ (XVECTOR (menu_items
)->contents
[i
], Qt
))
1342 /* Create a new pane. */
1343 Lisp_Object pane_name
, prefix
;
1345 pane_name
= XVECTOR (menu_items
)->contents
[i
+ MENU_ITEMS_PANE_NAME
];
1346 prefix
= XVECTOR (menu_items
)->contents
[i
+ MENU_ITEMS_PANE_PREFIX
];
1347 pane_string
= (NILP (pane_name
)
1348 ? "" : (char *) XSTRING (pane_name
)->data
);
1349 /* If there is just one top-level pane, put all its items directly
1350 under the top-level menu. */
1351 if (menu_items_n_panes
== 1)
1354 /* If the pane has a meaningful name,
1355 make the pane a top-level menu item
1356 with its items as a submenu beneath it. */
1357 if (strcmp (pane_string
, ""))
1359 wv
= malloc_widget_value ();
1363 first_wv
->contents
= wv
;
1364 wv
->name
= pane_string
;
1372 i
+= MENU_ITEMS_PANE_LENGTH
;
1376 /* Create a new item within current pane. */
1377 Lisp_Object item_name
, enable
, descrip
, def
;
1378 item_name
= XVECTOR (menu_items
)->contents
[i
+ MENU_ITEMS_ITEM_NAME
];
1379 enable
= XVECTOR (menu_items
)->contents
[i
+ MENU_ITEMS_ITEM_ENABLE
];
1381 = XVECTOR (menu_items
)->contents
[i
+ MENU_ITEMS_ITEM_EQUIV_KEY
];
1382 def
= XVECTOR (menu_items
)->contents
[i
+ MENU_ITEMS_ITEM_DEFINITION
];
1384 wv
= malloc_widget_value ();
1388 save_wv
->contents
= wv
;
1389 wv
->name
= (char *) XSTRING (item_name
)->data
;
1390 if (!NILP (descrip
))
1391 wv
->key
= (char *) XSTRING (descrip
)->data
;
1393 /* The EMACS_INT cast avoids a warning. There's no problem
1394 as long as pointers have enough bits to hold small integers. */
1395 wv
->call_data
= (!NILP (def
) ? (void *) (EMACS_INT
) i
: 0);
1396 wv
->enabled
= !NILP (enable
);
1399 i
+= MENU_ITEMS_ITEM_LENGTH
;
1406 extern void EmacsFrameSetCharSize ();
1408 /* Recompute the menu bar of frame F. */
1411 update_frame_menubar (f
)
1414 struct x_display
*x
= f
->display
.x
;
1416 int menubar_changed
;
1418 Dimension shell_height
;
1420 /* We assume the menubar contents has changed if the global flag is set,
1421 or if the current buffer has changed, or if the menubar has never
1422 been updated before.
1424 menubar_changed
= (x
->menubar_widget
1425 && !XtIsManaged (x
->menubar_widget
));
1427 if (! (menubar_changed
))
1431 /* Save the size of the frame because the pane widget doesn't accept to
1432 resize itself. So force it. */
1436 /* Do the voodoo which means "I'm changing lots of things, don't try to
1437 refigure sizes until I'm done." */
1438 lw_refigure_widget (x
->column_widget
, False
);
1440 /* the order in which children are managed is the top to
1441 bottom order in which they are displayed in the paned window.
1442 First, remove the text-area widget.
1444 XtUnmanageChild (x
->edit_widget
);
1446 /* remove the menubar that is there now, and put up the menubar that
1449 if (menubar_changed
)
1451 XtManageChild (x
->menubar_widget
);
1452 XtMapWidget (x
->menubar_widget
);
1453 XtVaSetValues (x
->menubar_widget
, XtNmappedWhenManaged
, 1, 0);
1456 /* Re-manage the text-area widget, and then thrash the sizes. */
1457 XtManageChild (x
->edit_widget
);
1458 lw_refigure_widget (x
->column_widget
, True
);
1460 /* Force the pane widget to resize itself with the right values. */
1461 EmacsFrameSetCharSize (x
->edit_widget
, columns
, rows
);
1467 set_frame_menubar (f
, first_time
)
1471 Widget menubar_widget
= f
->display
.x
->menubar_widget
;
1472 Lisp_Object tail
, items
, frame
;
1473 widget_value
*wv
, *first_wv
, *prev_wv
= 0;
1478 count
= inhibit_garbage_collection ();
1480 id
= frame_vector_add_frame (f
);
1482 wv
= malloc_widget_value ();
1483 wv
->name
= "menubar";
1487 items
= FRAME_MENU_BAR_ITEMS (f
);
1488 menu_items
= f
->menu_bar_vector
;
1489 menu_items_allocated
= XVECTOR (menu_items
)->size
;
1492 for (i
= 0; i
< XVECTOR (items
)->size
; i
+= 3)
1494 Lisp_Object key
, string
, maps
;
1496 key
= XVECTOR (items
)->contents
[i
];
1497 string
= XVECTOR (items
)->contents
[i
+ 1];
1498 maps
= XVECTOR (items
)->contents
[i
+ 2];
1502 wv
= single_submenu (key
, string
, maps
);
1506 first_wv
->contents
= wv
;
1507 /* Don't set wv->name here; GC during the loop might relocate it. */
1512 /* Now GC cannot happen during the lifetime of the widget_value,
1513 so it's safe to store data from a Lisp_String. */
1514 wv
= first_wv
->contents
;
1515 for (i
= 0; i
< XVECTOR (items
)->size
; i
+= 3)
1518 string
= XVECTOR (items
)->contents
[i
+ 1];
1521 wv
->name
= (char *) XSTRING (string
)->data
;
1525 finish_menu_items ();
1527 f
->menu_bar_vector
= menu_items
;
1528 f
->menu_bar_items_used
= menu_items_used
;
1531 unbind_to (count
, Qnil
);
1537 /* Disable resizing (done for Motif!) */
1538 lw_allow_resizing (f
->display
.x
->widget
, False
);
1540 /* The third arg is DEEP_P, which says to consider the entire
1541 menu trees we supply, rather than just the menu bar item names. */
1542 lw_modify_all_widgets (id
, first_wv
, 1);
1544 /* Re-enable the edit widget to resize. */
1545 lw_allow_resizing (f
->display
.x
->widget
, True
);
1549 menubar_widget
= lw_create_widget ("menubar", "menubar",
1551 f
->display
.x
->column_widget
,
1553 popup_activate_callback
,
1554 menubar_selection_callback
,
1555 popup_deactivate_callback
);
1556 f
->display
.x
->menubar_widget
= menubar_widget
;
1559 free_menubar_widget_value_tree (first_wv
);
1561 /* Don't update the menubar the first time it is created via x_window. */
1563 update_frame_menubar (f
);
1568 /* Called from Fx_create_frame to create the inital menubar of a frame
1569 before it is mapped, so that the window is mapped with the menubar already
1570 there instead of us tacking it on later and thrashing the window after it
1574 initialize_frame_menubar (f
)
1577 /* This function is called before the first chance to redisplay
1578 the frame. It has to be, so the frame will have the right size. */
1579 FRAME_MENU_BAR_ITEMS (f
) = menu_bar_items (FRAME_MENU_BAR_ITEMS (f
));
1580 set_frame_menubar (f
, 1);
1583 /* Get rid of the menu bar of frame F, and free its storage.
1584 This is used when deleting a frame, and when turning off the menu bar. */
1587 free_frame_menubar (f
)
1590 Widget menubar_widget
;
1593 menubar_widget
= f
->display
.x
->menubar_widget
;
1597 id
= frame_vector_add_frame (f
);
1599 lw_destroy_all_widgets (id
);
1600 XVECTOR (frame_vector
)->contents
[id
] = Qnil
;
1605 #endif /* USE_X_TOOLKIT */
1607 /* xmenu_show actually displays a menu using the panes and items in menu_items
1608 and returns the value selected from it.
1609 There are two versions of xmenu_show, one for Xt and one for Xlib.
1610 Both assume input is blocked by the caller. */
1612 /* F is the frame the menu is for.
1613 X and Y are the frame-relative specified position,
1614 relative to the inside upper left corner of the frame F.
1615 FOR_CLICK if this menu was invoked for a mouse click.
1616 KEYMAPS is 1 if this menu was specified with keymaps;
1617 in that case, we return a list containing the chosen item's value
1618 and perhaps also the pane's prefix.
1619 TITLE is the specified menu title.
1620 ERROR is a place to store an error message string in case of failure.
1621 (We return nil on failure, but the value doesn't actually matter.) */
1623 #ifdef USE_X_TOOLKIT
1625 /* We need a unique id for each widget handled by the Lucid Widget
1626 library. This includes the frame main windows, popup menu and
1628 LWLIB_ID widget_id_tick
;
1631 static Lisp_Object
*volatile menu_item_selection
;
1633 static Lisp_Object
*menu_item_selection
;
1637 popup_selection_callback (widget
, id
, client_data
)
1640 XtPointer client_data
;
1642 menu_item_selection
= (Lisp_Object
*) client_data
;
1646 xmenu_show (f
, x
, y
, for_click
, keymaps
, title
, error
)
1660 widget_value
*wv
, *save_wv
= 0, *first_wv
= 0, *prev_wv
= 0;
1661 widget_value
**submenu_stack
1662 = (widget_value
**) alloca (menu_items_used
* sizeof (widget_value
*));
1663 Lisp_Object
*subprefix_stack
1664 = (Lisp_Object
*) alloca (menu_items_used
* sizeof (Lisp_Object
));
1665 int submenu_depth
= 0;
1667 Position root_x
, root_y
;
1670 int next_release_must_exit
= 0;
1674 if (menu_items_used
<= MENU_ITEMS_PANE_LENGTH
)
1676 *error
= "Empty menu";
1680 /* Create a tree of widget_value objects
1681 representing the panes and their items. */
1682 wv
= malloc_widget_value ();
1689 /* Loop over all panes and items, filling in the tree. */
1691 while (i
< menu_items_used
)
1693 if (EQ (XVECTOR (menu_items
)->contents
[i
], Qnil
))
1695 submenu_stack
[submenu_depth
++] = save_wv
;
1701 else if (EQ (XVECTOR (menu_items
)->contents
[i
], Qlambda
))
1704 save_wv
= submenu_stack
[--submenu_depth
];
1708 else if (EQ (XVECTOR (menu_items
)->contents
[i
], Qt
)
1709 && submenu_depth
!= 0)
1710 i
+= MENU_ITEMS_PANE_LENGTH
;
1711 /* Ignore a nil in the item list.
1712 It's meaningful only for dialog boxes. */
1713 else if (EQ (XVECTOR (menu_items
)->contents
[i
], Qquote
))
1715 else if (EQ (XVECTOR (menu_items
)->contents
[i
], Qt
))
1717 /* Create a new pane. */
1718 Lisp_Object pane_name
, prefix
;
1720 pane_name
= XVECTOR (menu_items
)->contents
[i
+ MENU_ITEMS_PANE_NAME
];
1721 prefix
= XVECTOR (menu_items
)->contents
[i
+ MENU_ITEMS_PANE_PREFIX
];
1722 pane_string
= (NILP (pane_name
)
1723 ? "" : (char *) XSTRING (pane_name
)->data
);
1724 /* If there is just one top-level pane, put all its items directly
1725 under the top-level menu. */
1726 if (menu_items_n_panes
== 1)
1729 /* If the pane has a meaningful name,
1730 make the pane a top-level menu item
1731 with its items as a submenu beneath it. */
1732 if (!keymaps
&& strcmp (pane_string
, ""))
1734 wv
= malloc_widget_value ();
1738 first_wv
->contents
= wv
;
1739 wv
->name
= pane_string
;
1740 if (keymaps
&& !NILP (prefix
))
1747 else if (first_pane
)
1753 i
+= MENU_ITEMS_PANE_LENGTH
;
1757 /* Create a new item within current pane. */
1758 Lisp_Object item_name
, enable
, descrip
, def
;
1759 item_name
= XVECTOR (menu_items
)->contents
[i
+ MENU_ITEMS_ITEM_NAME
];
1760 enable
= XVECTOR (menu_items
)->contents
[i
+ MENU_ITEMS_ITEM_ENABLE
];
1762 = XVECTOR (menu_items
)->contents
[i
+ MENU_ITEMS_ITEM_EQUIV_KEY
];
1763 def
= XVECTOR (menu_items
)->contents
[i
+ MENU_ITEMS_ITEM_DEFINITION
];
1765 wv
= malloc_widget_value ();
1769 save_wv
->contents
= wv
;
1770 wv
->name
= (char *) XSTRING (item_name
)->data
;
1771 if (!NILP (descrip
))
1772 wv
->key
= (char *) XSTRING (descrip
)->data
;
1774 /* If this item has a null value,
1775 make the call_data null so that it won't display a box
1776 when the mouse is on it. */
1778 = (!NILP (def
) ? (void *) &XVECTOR (menu_items
)->contents
[i
] : 0);
1779 wv
->enabled
= !NILP (enable
);
1782 i
+= MENU_ITEMS_ITEM_LENGTH
;
1786 /* Deal with the title, if it is non-nil. */
1789 widget_value
*wv_title
= malloc_widget_value ();
1790 widget_value
*wv_sep1
= malloc_widget_value ();
1791 widget_value
*wv_sep2
= malloc_widget_value ();
1793 wv_sep2
->name
= "--";
1794 wv_sep2
->next
= first_wv
->contents
;
1796 wv_sep1
->name
= "--";
1797 wv_sep1
->next
= wv_sep2
;
1799 wv_title
->name
= (char *) XSTRING (title
)->data
;
1800 wv_title
->enabled
= True
;
1801 wv_title
->next
= wv_sep1
;
1802 first_wv
->contents
= wv_title
;
1805 /* Actually create the menu. */
1806 menu_id
= ++widget_id_tick
;
1807 menu
= lw_create_widget ("popup", first_wv
->name
, menu_id
, first_wv
,
1808 f
->display
.x
->widget
, 1, 0,
1809 popup_selection_callback
,
1810 popup_deactivate_callback
);
1812 /* Don't allow any geometry request from the user. */
1813 XtSetArg (av
[ac
], XtNgeometry
, 0); ac
++;
1814 XtSetValues (menu
, av
, ac
);
1816 /* Free the widget_value objects we used to specify the contents. */
1817 free_menubar_widget_value_tree (first_wv
);
1819 /* No selection has been chosen yet. */
1820 menu_item_selection
= 0;
1822 /* Display the menu. */
1823 lw_popup_menu (menu
);
1824 popup_activated_flag
= 1;
1826 /* Process events that apply to the menu. */
1827 popup_get_selection ((XEvent
*) 0, FRAME_X_DISPLAY_INFO (f
));
1830 /* fp turned off the following statement and wrote a comment
1831 that it is unnecessary--that the menu has already disappeared.
1832 I observer that is not so. -- rms. */
1833 /* Make sure the menu disappears. */
1834 lw_destroy_all_widgets (menu_id
);
1837 /* Find the selected item, and its pane, to return
1838 the proper value. */
1839 if (menu_item_selection
!= 0)
1841 Lisp_Object prefix
, entry
;
1845 while (i
< menu_items_used
)
1847 if (EQ (XVECTOR (menu_items
)->contents
[i
], Qnil
))
1849 subprefix_stack
[submenu_depth
++] = prefix
;
1853 else if (EQ (XVECTOR (menu_items
)->contents
[i
], Qlambda
))
1855 prefix
= subprefix_stack
[--submenu_depth
];
1858 else if (EQ (XVECTOR (menu_items
)->contents
[i
], Qt
))
1861 = XVECTOR (menu_items
)->contents
[i
+ MENU_ITEMS_PANE_PREFIX
];
1862 i
+= MENU_ITEMS_PANE_LENGTH
;
1867 = XVECTOR (menu_items
)->contents
[i
+ MENU_ITEMS_ITEM_VALUE
];
1868 if (menu_item_selection
== &XVECTOR (menu_items
)->contents
[i
])
1874 entry
= Fcons (entry
, Qnil
);
1876 entry
= Fcons (prefix
, entry
);
1877 for (j
= submenu_depth
- 1; j
>= 0; j
--)
1878 if (!NILP (subprefix_stack
[j
]))
1879 entry
= Fcons (subprefix_stack
[j
], entry
);
1883 i
+= MENU_ITEMS_ITEM_LENGTH
;
1892 dialog_selection_callback (widget
, id
, client_data
)
1895 XtPointer client_data
;
1897 /* The EMACS_INT cast avoids a warning. There's no problem
1898 as long as pointers have enough bits to hold small integers. */
1899 if ((int) (EMACS_INT
) client_data
!= -1)
1900 menu_item_selection
= (Lisp_Object
*) client_data
;
1902 lw_destroy_all_widgets (id
);
1904 popup_activated_flag
= 0;
1907 static char * button_names
[] = {
1908 "button1", "button2", "button3", "button4", "button5",
1909 "button6", "button7", "button8", "button9", "button10" };
1912 xdialog_show (f
, keymaps
, title
, error
)
1918 int i
, nb_buttons
=0;
1921 char dialog_name
[6];
1923 widget_value
*wv
, *save_wv
= 0, *first_wv
= 0, *prev_wv
= 0;
1925 /* Number of elements seen so far, before boundary. */
1927 /* 1 means we've seen the boundary between left-hand elts and right-hand. */
1928 int boundary_seen
= 0;
1932 if (menu_items_n_panes
> 1)
1934 *error
= "Multiple panes in dialog box";
1938 /* Create a tree of widget_value objects
1939 representing the text label and buttons. */
1941 Lisp_Object pane_name
, prefix
;
1943 pane_name
= XVECTOR (menu_items
)->contents
[MENU_ITEMS_PANE_NAME
];
1944 prefix
= XVECTOR (menu_items
)->contents
[MENU_ITEMS_PANE_PREFIX
];
1945 pane_string
= (NILP (pane_name
)
1946 ? "" : (char *) XSTRING (pane_name
)->data
);
1947 prev_wv
= malloc_widget_value ();
1948 prev_wv
->value
= pane_string
;
1949 if (keymaps
&& !NILP (prefix
))
1951 prev_wv
->enabled
= 1;
1952 prev_wv
->name
= "message";
1955 /* Loop over all panes and items, filling in the tree. */
1956 i
= MENU_ITEMS_PANE_LENGTH
;
1957 while (i
< menu_items_used
)
1960 /* Create a new item within current pane. */
1961 Lisp_Object item_name
, enable
, descrip
;
1962 item_name
= XVECTOR (menu_items
)->contents
[i
+ MENU_ITEMS_ITEM_NAME
];
1963 enable
= XVECTOR (menu_items
)->contents
[i
+ MENU_ITEMS_ITEM_ENABLE
];
1965 = XVECTOR (menu_items
)->contents
[i
+ MENU_ITEMS_ITEM_EQUIV_KEY
];
1967 if (NILP (item_name
))
1969 free_menubar_widget_value_tree (first_wv
);
1970 *error
= "Submenu in dialog items";
1973 if (EQ (item_name
, Qquote
))
1975 /* This is the boundary between left-side elts
1976 and right-side elts. Stop incrementing right_count. */
1981 if (nb_buttons
>= 10)
1983 free_menubar_widget_value_tree (first_wv
);
1984 *error
= "Too many dialog items";
1988 wv
= malloc_widget_value ();
1990 wv
->name
= (char *) button_names
[nb_buttons
];
1991 if (!NILP (descrip
))
1992 wv
->key
= (char *) XSTRING (descrip
)->data
;
1993 wv
->value
= (char *) XSTRING (item_name
)->data
;
1994 wv
->call_data
= (void *) &XVECTOR (menu_items
)->contents
[i
];
1995 wv
->enabled
= !NILP (enable
);
1998 if (! boundary_seen
)
2002 i
+= MENU_ITEMS_ITEM_LENGTH
;
2005 /* If the boundary was not specified,
2006 by default put half on the left and half on the right. */
2007 if (! boundary_seen
)
2008 left_count
= nb_buttons
- nb_buttons
/ 2;
2010 wv
= malloc_widget_value ();
2011 wv
->name
= dialog_name
;
2013 /* Dialog boxes use a really stupid name encoding
2014 which specifies how many buttons to use
2015 and how many buttons are on the right.
2016 The Q means something also. */
2017 dialog_name
[0] = 'Q';
2018 dialog_name
[1] = '0' + nb_buttons
;
2019 dialog_name
[2] = 'B';
2020 dialog_name
[3] = 'R';
2021 /* Number of buttons to put on the right. */
2022 dialog_name
[4] = '0' + nb_buttons
- left_count
;
2024 wv
->contents
= first_wv
;
2028 /* Actually create the dialog. */
2029 dialog_id
= ++widget_id_tick
;
2030 menu
= lw_create_widget (first_wv
->name
, "dialog", dialog_id
, first_wv
,
2031 f
->display
.x
->widget
, 1, 0,
2032 dialog_selection_callback
, 0);
2033 lw_modify_all_widgets (dialog_id
, first_wv
->contents
, True
);
2034 /* Free the widget_value objects we used to specify the contents. */
2035 free_menubar_widget_value_tree (first_wv
);
2037 /* No selection has been chosen yet. */
2038 menu_item_selection
= 0;
2040 /* Display the menu. */
2041 lw_pop_up_all_widgets (dialog_id
);
2042 popup_activated_flag
= 1;
2044 /* Process events that apply to the menu. */
2045 popup_get_selection ((XEvent
*) 0, FRAME_X_DISPLAY_INFO (f
));
2047 /* Find the selected item, and its pane, to return
2048 the proper value. */
2049 if (menu_item_selection
!= 0)
2055 while (i
< menu_items_used
)
2059 if (EQ (XVECTOR (menu_items
)->contents
[i
], Qt
))
2062 = XVECTOR (menu_items
)->contents
[i
+ MENU_ITEMS_PANE_PREFIX
];
2063 i
+= MENU_ITEMS_PANE_LENGTH
;
2068 = XVECTOR (menu_items
)->contents
[i
+ MENU_ITEMS_ITEM_VALUE
];
2069 if (menu_item_selection
== &XVECTOR (menu_items
)->contents
[i
])
2073 entry
= Fcons (entry
, Qnil
);
2075 entry
= Fcons (prefix
, entry
);
2079 i
+= MENU_ITEMS_ITEM_LENGTH
;
2086 #else /* not USE_X_TOOLKIT */
2089 xmenu_show (f
, x
, y
, for_click
, keymaps
, title
, error
)
2099 int pane
, selidx
, lpane
, status
;
2100 Lisp_Object entry
, pane_prefix
;
2102 int ulx
, uly
, width
, height
;
2103 int dispwidth
, dispheight
;
2107 unsigned int dummy_uint
;
2110 if (menu_items_n_panes
== 0)
2113 if (menu_items_used
<= MENU_ITEMS_PANE_LENGTH
)
2115 *error
= "Empty menu";
2119 /* Figure out which root window F is on. */
2120 XGetGeometry (FRAME_X_DISPLAY (f
), FRAME_X_WINDOW (f
), &root
,
2121 &dummy_int
, &dummy_int
, &dummy_uint
, &dummy_uint
,
2122 &dummy_uint
, &dummy_uint
);
2124 /* Make the menu on that window. */
2125 menu
= XMenuCreate (FRAME_X_DISPLAY (f
), root
, "emacs");
2128 *error
= "Can't create menu";
2132 #ifdef HAVE_X_WINDOWS
2133 /* Adjust coordinates to relative to the outer (window manager) window. */
2136 int win_x
= 0, win_y
= 0;
2138 /* Find the position of the outside upper-left corner of
2139 the inner window, with respect to the outer window. */
2140 if (f
->display
.x
->parent_desc
!= FRAME_X_DISPLAY_INFO (f
)->root_window
)
2143 XTranslateCoordinates (FRAME_X_DISPLAY (f
),
2145 /* From-window, to-window. */
2146 f
->display
.x
->window_desc
,
2147 f
->display
.x
->parent_desc
,
2149 /* From-position, to-position. */
2150 0, 0, &win_x
, &win_y
,
2152 /* Child of window. */
2159 #endif /* HAVE_X_WINDOWS */
2161 /* Adjust coordinates to be root-window-relative. */
2162 x
+= f
->display
.x
->left_pos
;
2163 y
+= f
->display
.x
->top_pos
;
2165 /* Create all the necessary panes and their items. */
2167 while (i
< menu_items_used
)
2169 if (EQ (XVECTOR (menu_items
)->contents
[i
], Qt
))
2171 /* Create a new pane. */
2172 Lisp_Object pane_name
, prefix
;
2175 pane_name
= XVECTOR (menu_items
)->contents
[i
+ MENU_ITEMS_PANE_NAME
];
2176 prefix
= XVECTOR (menu_items
)->contents
[i
+ MENU_ITEMS_PANE_PREFIX
];
2177 pane_string
= (NILP (pane_name
)
2178 ? "" : (char *) XSTRING (pane_name
)->data
);
2179 if (keymaps
&& !NILP (prefix
))
2182 lpane
= XMenuAddPane (FRAME_X_DISPLAY (f
), menu
, pane_string
, TRUE
);
2183 if (lpane
== XM_FAILURE
)
2185 XMenuDestroy (FRAME_X_DISPLAY (f
), menu
);
2186 *error
= "Can't create pane";
2189 i
+= MENU_ITEMS_PANE_LENGTH
;
2191 /* Find the width of the widest item in this pane. */
2194 while (j
< menu_items_used
)
2197 item
= XVECTOR (menu_items
)->contents
[j
];
2205 width
= XSTRING (item
)->size
;
2206 if (width
> maxwidth
)
2209 j
+= MENU_ITEMS_ITEM_LENGTH
;
2212 /* Ignore a nil in the item list.
2213 It's meaningful only for dialog boxes. */
2214 else if (EQ (XVECTOR (menu_items
)->contents
[i
], Qquote
))
2218 /* Create a new item within current pane. */
2219 Lisp_Object item_name
, enable
, descrip
;
2220 unsigned char *item_data
;
2222 item_name
= XVECTOR (menu_items
)->contents
[i
+ MENU_ITEMS_ITEM_NAME
];
2223 enable
= XVECTOR (menu_items
)->contents
[i
+ MENU_ITEMS_ITEM_ENABLE
];
2225 = XVECTOR (menu_items
)->contents
[i
+ MENU_ITEMS_ITEM_EQUIV_KEY
];
2226 if (!NILP (descrip
))
2228 int gap
= maxwidth
- XSTRING (item_name
)->size
;
2231 spacer
= Fmake_string (make_number (gap
), make_number (' '));
2232 item_name
= concat2 (item_name
, spacer
);
2233 item_name
= concat2 (item_name
, descrip
);
2234 item_data
= XSTRING (item_name
)->data
;
2236 /* if alloca is fast, use that to make the space,
2237 to reduce gc needs. */
2239 = (unsigned char *) alloca (maxwidth
2240 + XSTRING (descrip
)->size
+ 1);
2241 bcopy (XSTRING (item_name
)->data
, item_data
,
2242 XSTRING (item_name
)->size
);
2243 for (j
= XSTRING (item_name
)->size
; j
< maxwidth
; j
++)
2245 bcopy (XSTRING (descrip
)->data
, item_data
+ j
,
2246 XSTRING (descrip
)->size
);
2247 item_data
[j
+ XSTRING (descrip
)->size
] = 0;
2251 item_data
= XSTRING (item_name
)->data
;
2253 if (XMenuAddSelection (FRAME_X_DISPLAY (f
),
2254 menu
, lpane
, 0, item_data
,
2258 XMenuDestroy (FRAME_X_DISPLAY (f
), menu
);
2259 *error
= "Can't add selection to menu";
2262 i
+= MENU_ITEMS_ITEM_LENGTH
;
2266 /* All set and ready to fly. */
2267 XMenuRecompute (FRAME_X_DISPLAY (f
), menu
);
2268 dispwidth
= DisplayWidth (FRAME_X_DISPLAY (f
),
2269 XScreenNumberOfScreen (FRAME_X_SCREEN (f
)));
2270 dispheight
= DisplayHeight (FRAME_X_DISPLAY (f
),
2271 XScreenNumberOfScreen (FRAME_X_SCREEN (f
)));
2272 x
= min (x
, dispwidth
);
2273 y
= min (y
, dispheight
);
2276 XMenuLocate (FRAME_X_DISPLAY (f
), menu
, 0, 0, x
, y
,
2277 &ulx
, &uly
, &width
, &height
);
2278 if (ulx
+width
> dispwidth
)
2280 x
-= (ulx
+ width
) - dispwidth
;
2281 ulx
= dispwidth
- width
;
2283 if (uly
+height
> dispheight
)
2285 y
-= (uly
+ height
) - dispheight
;
2286 uly
= dispheight
- height
;
2288 if (ulx
< 0) x
-= ulx
;
2289 if (uly
< 0) y
-= uly
;
2291 XMenuSetAEQ (menu
, TRUE
);
2292 XMenuSetFreeze (menu
, TRUE
);
2295 status
= XMenuActivate (FRAME_X_DISPLAY (f
), menu
, &pane
, &selidx
,
2296 x
, y
, ButtonReleaseMask
, &datap
);
2299 /* Assume the mouse has moved out of the X window.
2300 If it has actually moved in, we will get an EnterNotify. */
2301 x_mouse_leave (FRAME_X_DISPLAY_INFO (f
));
2307 fprintf (stderr
, "pane= %d line = %d\n", panes
, selidx
);
2310 /* Find the item number SELIDX in pane number PANE. */
2312 while (i
< menu_items_used
)
2314 if (EQ (XVECTOR (menu_items
)->contents
[i
], Qt
))
2318 = XVECTOR (menu_items
)->contents
[i
+ MENU_ITEMS_PANE_PREFIX
];
2320 i
+= MENU_ITEMS_PANE_LENGTH
;
2329 = XVECTOR (menu_items
)->contents
[i
+ MENU_ITEMS_ITEM_VALUE
];
2332 entry
= Fcons (entry
, Qnil
);
2333 if (!NILP (pane_prefix
))
2334 entry
= Fcons (pane_prefix
, entry
);
2340 i
+= MENU_ITEMS_ITEM_LENGTH
;
2346 *error
= "Can't activate menu";
2352 XMenuDestroy (FRAME_X_DISPLAY (f
), menu
);
2354 #ifdef HAVE_X_WINDOWS
2355 /* State that no mouse buttons are now held.
2356 (The oldXMenu code doesn't track this info for us.)
2357 That is not necessarily true, but the fiction leads to reasonable
2358 results, and it is a pain to ask which are actually held now. */
2359 FRAME_X_DISPLAY_INFO (f
)->grabbed
= 0;
2365 #endif /* not USE_X_TOOLKIT */
2369 staticpro (&menu_items
);
2372 #ifdef USE_X_TOOLKIT
2373 widget_id_tick
= (1<<16);
2376 staticpro (&frame_vector
);
2377 frame_vector
= Fmake_vector (make_number (10), Qnil
);
2379 defsubr (&Sx_popup_menu
);
2380 defsubr (&Sx_popup_dialog
);