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
))
768 /* Use the mouse's current position. */
769 FRAME_PTR new_f
= selected_frame
;
770 Lisp_Object bar_window
;
774 if (mouse_position_hook
)
775 (*mouse_position_hook
) (&new_f
, 1, &bar_window
,
776 &part
, &x
, &y
, &time
);
778 XSETFRAME (window
, new_f
);
781 window
= selected_window
;
788 tem
= Fcar (position
);
791 window
= Fcar (Fcdr (position
));
793 y
= Fcar (Fcdr (tem
));
798 tem
= Fcar (Fcdr (position
)); /* EVENT_START (position) */
799 window
= Fcar (tem
); /* POSN_WINDOW (tem) */
800 tem
= Fcar (Fcdr (Fcdr (tem
))); /* POSN_WINDOW_POSN (tem) */
809 /* Decode where to put the menu. */
817 else if (WINDOWP (window
))
819 CHECK_LIVE_WINDOW (window
, 0);
820 f
= XFRAME (WINDOW_FRAME (XWINDOW (window
)));
822 xpos
= (FONT_WIDTH (f
->display
.x
->font
) * XWINDOW (window
)->left
);
823 ypos
= (f
->display
.x
->line_height
* XWINDOW (window
)->top
);
826 /* ??? Not really clean; should be CHECK_WINDOW_OR_FRAME,
827 but I don't want to make one now. */
828 CHECK_WINDOW (window
, 0);
837 /* Decode the menu items from what was specified. */
839 keymap
= Fkeymapp (menu
);
842 tem
= Fkeymapp (Fcar (menu
));
845 /* We were given a keymap. Extract menu info from the keymap. */
847 keymap
= get_keymap (menu
);
849 /* Extract the detailed info to make one pane. */
850 keymap_panes (&menu
, 1, NILP (position
));
852 /* Search for a string appearing directly as an element of the keymap.
853 That string is the title of the menu. */
854 prompt
= map_prompt (keymap
);
856 /* Make that be the pane title of the first pane. */
857 if (!NILP (prompt
) && menu_items_n_panes
>= 0)
858 XVECTOR (menu_items
)->contents
[MENU_ITEMS_PANE_NAME
] = prompt
;
862 else if (!NILP (tem
))
864 /* We were given a list of keymaps. */
865 int nmaps
= XFASTINT (Flength (menu
));
867 = (Lisp_Object
*) alloca (nmaps
* sizeof (Lisp_Object
));
872 /* The first keymap that has a prompt string
873 supplies the menu title. */
874 for (tem
= menu
, i
= 0; CONSP (tem
); tem
= Fcdr (tem
))
878 maps
[i
++] = keymap
= get_keymap (Fcar (tem
));
880 prompt
= map_prompt (keymap
);
881 if (NILP (title
) && !NILP (prompt
))
885 /* Extract the detailed info to make one pane. */
886 keymap_panes (maps
, nmaps
, NILP (position
));
888 /* Make the title be the pane title of the first pane. */
889 if (!NILP (title
) && menu_items_n_panes
>= 0)
890 XVECTOR (menu_items
)->contents
[MENU_ITEMS_PANE_NAME
] = title
;
896 /* We were given an old-fashioned menu. */
898 CHECK_STRING (title
, 1);
900 list_of_panes (Fcdr (menu
));
907 discard_menu_items ();
912 /* Display them in a menu. */
915 selection
= xmenu_show (f
, xpos
, ypos
, for_click
,
916 keymaps
, title
, &error_name
);
919 discard_menu_items ();
923 if (error_name
) error (error_name
);
927 DEFUN ("x-popup-dialog", Fx_popup_dialog
, Sx_popup_dialog
, 2, 2, 0,
928 "Pop up a dialog box and return user's selection.\n\
929 POSITION specifies which frame to use.\n\
930 This is normally a mouse button event or a window or frame.\n\
931 If POSITION is t, it means to use the frame the mouse is on.\n\
932 The dialog box appears in the middle of the specified frame.\n\
934 CONTENTS specifies the alternatives to display in the dialog box.\n\
935 It is a list of the form (TITLE ITEM1 ITEM2...).\n\
936 Each ITEM is a cons cell (STRING . VALUE).\n\
937 The return value is VALUE from the chosen item.\n\n\
938 An ITEM may also be just a string--that makes a nonselectable item.\n\
939 An ITEM may also be nil--that means to put all preceding items\n\
940 on the left of the dialog box and all following items on the right.\n\
941 \(By default, approximately half appear on each side.)")
943 Lisp_Object position
, contents
;
950 /* Decode the first argument: find the window or frame to use. */
951 if (EQ (position
, Qt
))
953 #if 0 /* Using the frame the mouse is on may not be right. */
954 /* Use the mouse's current position. */
955 FRAME_PTR new_f
= selected_frame
;
956 Lisp_Object bar_window
;
961 (*mouse_position_hook
) (&new_f
, 1, &bar_window
, &part
, &x
, &y
, &time
);
964 XSETFRAME (window
, new_f
);
966 window
= selected_window
;
968 /* Decode the first argument: find the window and the coordinates. */
969 if (EQ (position
, Qt
))
970 window
= selected_window
;
972 else if (CONSP (position
))
975 tem
= Fcar (position
);
977 window
= Fcar (Fcdr (position
));
980 tem
= Fcar (Fcdr (position
)); /* EVENT_START (position) */
981 window
= Fcar (tem
); /* POSN_WINDOW (tem) */
984 else if (WINDOWP (position
) || FRAMEP (position
))
987 /* Decode where to put the menu. */
991 else if (WINDOWP (window
))
993 CHECK_LIVE_WINDOW (window
, 0);
994 f
= XFRAME (WINDOW_FRAME (XWINDOW (window
)));
997 /* ??? Not really clean; should be CHECK_WINDOW_OR_FRAME,
998 but I don't want to make one now. */
999 CHECK_WINDOW (window
, 0);
1001 #ifndef USE_X_TOOLKIT
1002 /* Display a menu with these alternatives
1003 in the middle of frame F. */
1005 Lisp_Object x
, y
, frame
, newpos
;
1006 XSETFRAME (frame
, f
);
1007 XSETINT (x
, x_pixel_width (f
) / 2);
1008 XSETINT (y
, x_pixel_height (f
) / 2);
1009 newpos
= Fcons (Fcons (x
, Fcons (y
, Qnil
)), Fcons (frame
, Qnil
));
1011 return Fx_popup_menu (newpos
,
1012 Fcons (Fcar (contents
), Fcons (contents
, Qnil
)));
1018 Lisp_Object selection
;
1020 /* Decode the dialog items from what was specified. */
1021 title
= Fcar (contents
);
1022 CHECK_STRING (title
, 1);
1024 list_of_panes (Fcons (contents
, Qnil
));
1026 /* Display them in a dialog box. */
1028 selection
= xdialog_show (f
, 0, title
, &error_name
);
1031 discard_menu_items ();
1033 if (error_name
) error (error_name
);
1039 #ifdef USE_X_TOOLKIT
1041 /* Loop in Xt until the menu pulldown or dialog popup has been
1042 popped down (deactivated).
1044 NOTE: All calls to popup_get_selection() should be protected
1045 with BLOCK_INPUT, UNBLOCK_INPUT wrappers. */
1048 popup_get_selection (initial_event
, dpyinfo
)
1049 XEvent
*initial_event
;
1050 struct x_display_info
*dpyinfo
;
1054 /* Define a queue to save up for later unreading
1055 all X events that don't pertain to the menu. */
1059 struct event_queue
*next
;
1062 struct event_queue
*queue
= NULL
;
1063 struct event_queue
*queue_tmp
;
1066 event
= *initial_event
;
1068 XtAppNextEvent (Xt_app_con
, &event
);
1072 /* Handle expose events for editor frames right away. */
1073 if (event
.type
== Expose
)
1074 process_expose_from_menu (event
);
1075 /* Make sure we don't consider buttons grabbed after menu goes. */
1076 else if (event
.type
== ButtonRelease
1077 && dpyinfo
->display
== event
.xbutton
.display
)
1078 dpyinfo
->grabbed
&= ~(1 << event
.xbutton
.button
);
1080 /* Queue all events not for this popup,
1081 except for Expose, which we've already handled. */
1082 if (event
.type
!= Expose
1083 && (event
.xany
.display
!= dpyinfo
->display
1084 || ! x_any_window_to_frame (dpyinfo
, event
.xany
.window
)))
1087 queue_tmp
= (struct event_queue
*) malloc (sizeof (struct event_queue
));
1089 if (queue_tmp
!= NULL
)
1091 queue_tmp
->event
= event
;
1092 queue_tmp
->next
= queue
;
1097 XtDispatchEvent (&event
);
1099 if (!popup_activated ())
1101 XtAppNextEvent (Xt_app_con
, &event
);
1104 /* Unread any events that we got but did not handle. */
1105 while (queue
!= NULL
)
1108 XPutBackEvent (queue_tmp
->event
.xany
.display
, &queue_tmp
->event
);
1109 queue
= queue_tmp
->next
;
1110 free ((char *)queue_tmp
);
1111 /* Cause these events to get read as soon as we UNBLOCK_INPUT. */
1112 interrupt_input_pending
= 1;
1116 /* Detect if a dialog or menu has been posted. */
1121 return popup_activated_flag
;
1125 /* This callback is invoked when the user selects a menubar cascade
1126 pushbutton, but before the pulldown menu is posted. */
1129 popup_activate_callback (widget
, id
, client_data
)
1132 XtPointer client_data
;
1134 popup_activated_flag
= 1;
1137 /* This callback is called from the menu bar pulldown menu
1138 when the user makes a selection.
1139 Figure out what the user chose
1140 and put the appropriate events into the keyboard buffer. */
1143 menubar_selection_callback (widget
, id
, client_data
)
1146 XtPointer client_data
;
1149 FRAME_PTR f
= XFRAME (XVECTOR (frame_vector
)->contents
[id
]);
1151 Lisp_Object
*subprefix_stack
;
1152 int submenu_depth
= 0;
1157 subprefix_stack
= (Lisp_Object
*) alloca (f
->menu_bar_items_used
* sizeof (Lisp_Object
));
1158 vector
= f
->menu_bar_vector
;
1161 while (i
< f
->menu_bar_items_used
)
1165 if (EQ (XVECTOR (vector
)->contents
[i
], Qnil
))
1167 subprefix_stack
[submenu_depth
++] = prefix
;
1171 else if (EQ (XVECTOR (vector
)->contents
[i
], Qlambda
))
1173 prefix
= subprefix_stack
[--submenu_depth
];
1176 else if (EQ (XVECTOR (vector
)->contents
[i
], Qt
))
1178 prefix
= XVECTOR (vector
)->contents
[i
+ MENU_ITEMS_PANE_PREFIX
];
1179 i
+= MENU_ITEMS_PANE_LENGTH
;
1183 entry
= XVECTOR (vector
)->contents
[i
+ MENU_ITEMS_ITEM_VALUE
];
1184 /* The EMACS_INT cast avoids a warning. There's no problem
1185 as long as pointers have enough bits to hold small integers. */
1186 if ((int) (EMACS_INT
) client_data
== i
)
1189 struct input_event buf
;
1192 XSETFRAME (frame
, f
);
1193 buf
.kind
= menu_bar_event
;
1194 buf
.frame_or_window
= Fcons (frame
, Qmenu_bar
);
1195 kbd_buffer_store_event (&buf
);
1197 for (j
= 0; j
< submenu_depth
; j
++)
1198 if (!NILP (subprefix_stack
[j
]))
1200 buf
.kind
= menu_bar_event
;
1201 buf
.frame_or_window
= Fcons (frame
, subprefix_stack
[j
]);
1202 kbd_buffer_store_event (&buf
);
1207 buf
.kind
= menu_bar_event
;
1208 buf
.frame_or_window
= Fcons (frame
, prefix
);
1209 kbd_buffer_store_event (&buf
);
1212 buf
.kind
= menu_bar_event
;
1213 buf
.frame_or_window
= Fcons (frame
, entry
);
1214 kbd_buffer_store_event (&buf
);
1218 i
+= MENU_ITEMS_ITEM_LENGTH
;
1223 /* This callback is invoked when a dialog or menu is finished being
1224 used and has been unposted. */
1227 popup_deactivate_callback (widget
, id
, client_data
)
1230 XtPointer client_data
;
1232 popup_activated_flag
= 0;
1236 /* This recursively calls free_widget_value on the tree of widgets.
1237 It must free all data that was malloc'ed for these widget_values.
1238 In Emacs, many slots are pointers into the data of Lisp_Strings, and
1239 must be left alone. */
1242 free_menubar_widget_value_tree (wv
)
1247 wv
->name
= wv
->value
= wv
->key
= (char *) 0xDEADBEEF;
1249 if (wv
->contents
&& (wv
->contents
!= (widget_value
*)1))
1251 free_menubar_widget_value_tree (wv
->contents
);
1252 wv
->contents
= (widget_value
*) 0xDEADBEEF;
1256 free_menubar_widget_value_tree (wv
->next
);
1257 wv
->next
= (widget_value
*) 0xDEADBEEF;
1260 free_widget_value (wv
);
1264 /* Return a tree of widget_value structures for a menu bar item
1265 whose event type is ITEM_KEY (with string ITEM_NAME)
1266 and whose contents come from the list of keymaps MAPS. */
1268 static widget_value
*
1269 single_submenu (item_key
, item_name
, maps
)
1270 Lisp_Object item_key
, item_name
, maps
;
1272 widget_value
*wv
, *prev_wv
, *save_wv
, *first_wv
;
1274 int submenu_depth
= 0;
1277 Lisp_Object
*mapvec
;
1278 widget_value
**submenu_stack
;
1280 int previous_items
= menu_items_used
;
1282 length
= Flength (maps
);
1283 len
= XINT (length
);
1285 /* Convert the list MAPS into a vector MAPVEC. */
1286 mapvec
= (Lisp_Object
*) alloca (len
* sizeof (Lisp_Object
));
1287 for (i
= 0; i
< len
; i
++)
1289 mapvec
[i
] = Fcar (maps
);
1293 menu_items_n_panes
= 0;
1295 /* Loop over the given keymaps, making a pane for each map.
1296 But don't make a pane that is empty--ignore that map instead. */
1297 for (i
= 0; i
< len
; i
++)
1298 single_keymap_panes (mapvec
[i
], item_name
, item_key
, 0);
1300 /* Create a tree of widget_value objects
1301 representing the panes and their items. */
1304 = (widget_value
**) alloca (menu_items_used
* sizeof (widget_value
*));
1305 wv
= malloc_widget_value ();
1312 /* Loop over all panes and items made during this call
1313 and construct a tree of widget_value objects.
1314 Ignore the panes and items made by previous calls to
1315 single_submenu, even though those are also in menu_items. */
1317 while (i
< menu_items_used
)
1319 if (EQ (XVECTOR (menu_items
)->contents
[i
], Qnil
))
1321 submenu_stack
[submenu_depth
++] = save_wv
;
1326 else if (EQ (XVECTOR (menu_items
)->contents
[i
], Qlambda
))
1329 save_wv
= submenu_stack
[--submenu_depth
];
1332 else if (EQ (XVECTOR (menu_items
)->contents
[i
], Qt
)
1333 && submenu_depth
!= 0)
1334 i
+= MENU_ITEMS_PANE_LENGTH
;
1335 /* Ignore a nil in the item list.
1336 It's meaningful only for dialog boxes. */
1337 else if (EQ (XVECTOR (menu_items
)->contents
[i
], Qquote
))
1339 else if (EQ (XVECTOR (menu_items
)->contents
[i
], Qt
))
1341 /* Create a new pane. */
1342 Lisp_Object pane_name
, prefix
;
1344 pane_name
= XVECTOR (menu_items
)->contents
[i
+ MENU_ITEMS_PANE_NAME
];
1345 prefix
= XVECTOR (menu_items
)->contents
[i
+ MENU_ITEMS_PANE_PREFIX
];
1346 pane_string
= (NILP (pane_name
)
1347 ? "" : (char *) XSTRING (pane_name
)->data
);
1348 /* If there is just one top-level pane, put all its items directly
1349 under the top-level menu. */
1350 if (menu_items_n_panes
== 1)
1353 /* If the pane has a meaningful name,
1354 make the pane a top-level menu item
1355 with its items as a submenu beneath it. */
1356 if (strcmp (pane_string
, ""))
1358 wv
= malloc_widget_value ();
1362 first_wv
->contents
= wv
;
1363 wv
->name
= pane_string
;
1371 i
+= MENU_ITEMS_PANE_LENGTH
;
1375 /* Create a new item within current pane. */
1376 Lisp_Object item_name
, enable
, descrip
, def
;
1377 item_name
= XVECTOR (menu_items
)->contents
[i
+ MENU_ITEMS_ITEM_NAME
];
1378 enable
= XVECTOR (menu_items
)->contents
[i
+ MENU_ITEMS_ITEM_ENABLE
];
1380 = XVECTOR (menu_items
)->contents
[i
+ MENU_ITEMS_ITEM_EQUIV_KEY
];
1381 def
= XVECTOR (menu_items
)->contents
[i
+ MENU_ITEMS_ITEM_DEFINITION
];
1383 wv
= malloc_widget_value ();
1387 save_wv
->contents
= wv
;
1388 wv
->name
= (char *) XSTRING (item_name
)->data
;
1389 if (!NILP (descrip
))
1390 wv
->key
= (char *) XSTRING (descrip
)->data
;
1392 /* The EMACS_INT cast avoids a warning. There's no problem
1393 as long as pointers have enough bits to hold small integers. */
1394 wv
->call_data
= (!NILP (def
) ? (void *) (EMACS_INT
) i
: 0);
1395 wv
->enabled
= !NILP (enable
);
1398 i
+= MENU_ITEMS_ITEM_LENGTH
;
1405 extern void EmacsFrameSetCharSize ();
1407 /* Recompute the menu bar of frame F. */
1410 update_frame_menubar (f
)
1413 struct x_display
*x
= f
->display
.x
;
1415 int menubar_changed
;
1417 Dimension shell_height
;
1419 /* We assume the menubar contents has changed if the global flag is set,
1420 or if the current buffer has changed, or if the menubar has never
1421 been updated before.
1423 menubar_changed
= (x
->menubar_widget
1424 && !XtIsManaged (x
->menubar_widget
));
1426 if (! (menubar_changed
))
1430 /* Save the size of the frame because the pane widget doesn't accept to
1431 resize itself. So force it. */
1435 /* Do the voodoo which means "I'm changing lots of things, don't try to
1436 refigure sizes until I'm done." */
1437 lw_refigure_widget (x
->column_widget
, False
);
1439 /* the order in which children are managed is the top to
1440 bottom order in which they are displayed in the paned window.
1441 First, remove the text-area widget.
1443 XtUnmanageChild (x
->edit_widget
);
1445 /* remove the menubar that is there now, and put up the menubar that
1448 if (menubar_changed
)
1450 XtManageChild (x
->menubar_widget
);
1451 XtMapWidget (x
->menubar_widget
);
1452 XtVaSetValues (x
->menubar_widget
, XtNmappedWhenManaged
, 1, 0);
1455 /* Re-manage the text-area widget, and then thrash the sizes. */
1456 XtManageChild (x
->edit_widget
);
1457 lw_refigure_widget (x
->column_widget
, True
);
1459 /* Force the pane widget to resize itself with the right values. */
1460 EmacsFrameSetCharSize (x
->edit_widget
, columns
, rows
);
1466 set_frame_menubar (f
, first_time
)
1470 Widget menubar_widget
= f
->display
.x
->menubar_widget
;
1471 Lisp_Object tail
, items
, frame
;
1472 widget_value
*wv
, *first_wv
, *prev_wv
= 0;
1477 count
= inhibit_garbage_collection ();
1479 id
= frame_vector_add_frame (f
);
1481 wv
= malloc_widget_value ();
1482 wv
->name
= "menubar";
1486 items
= FRAME_MENU_BAR_ITEMS (f
);
1487 menu_items
= f
->menu_bar_vector
;
1488 menu_items_allocated
= XVECTOR (menu_items
)->size
;
1491 for (i
= 0; i
< XVECTOR (items
)->size
; i
+= 3)
1493 Lisp_Object key
, string
, maps
;
1495 key
= XVECTOR (items
)->contents
[i
];
1496 string
= XVECTOR (items
)->contents
[i
+ 1];
1497 maps
= XVECTOR (items
)->contents
[i
+ 2];
1501 wv
= single_submenu (key
, string
, maps
);
1505 first_wv
->contents
= wv
;
1506 /* Don't set wv->name here; GC during the loop might relocate it. */
1511 /* Now GC cannot happen during the lifetime of the widget_value,
1512 so it's safe to store data from a Lisp_String. */
1513 wv
= first_wv
->contents
;
1514 for (i
= 0; i
< XVECTOR (items
)->size
; i
+= 3)
1517 string
= XVECTOR (items
)->contents
[i
+ 1];
1520 wv
->name
= (char *) XSTRING (string
)->data
;
1524 finish_menu_items ();
1526 f
->menu_bar_vector
= menu_items
;
1527 f
->menu_bar_items_used
= menu_items_used
;
1530 unbind_to (count
, Qnil
);
1536 /* Disable resizing (done for Motif!) */
1537 lw_allow_resizing (f
->display
.x
->widget
, False
);
1539 /* The third arg is DEEP_P, which says to consider the entire
1540 menu trees we supply, rather than just the menu bar item names. */
1541 lw_modify_all_widgets (id
, first_wv
, 1);
1543 /* Re-enable the edit widget to resize. */
1544 lw_allow_resizing (f
->display
.x
->widget
, True
);
1548 menubar_widget
= lw_create_widget ("menubar", "menubar",
1550 f
->display
.x
->column_widget
,
1552 popup_activate_callback
,
1553 menubar_selection_callback
,
1554 popup_deactivate_callback
);
1555 f
->display
.x
->menubar_widget
= menubar_widget
;
1558 free_menubar_widget_value_tree (first_wv
);
1560 /* Don't update the menubar the first time it is created via x_window. */
1562 update_frame_menubar (f
);
1567 /* Called from Fx_create_frame to create the inital menubar of a frame
1568 before it is mapped, so that the window is mapped with the menubar already
1569 there instead of us tacking it on later and thrashing the window after it
1573 initialize_frame_menubar (f
)
1576 /* This function is called before the first chance to redisplay
1577 the frame. It has to be, so the frame will have the right size. */
1578 FRAME_MENU_BAR_ITEMS (f
) = menu_bar_items (FRAME_MENU_BAR_ITEMS (f
));
1579 set_frame_menubar (f
, 1);
1582 /* Get rid of the menu bar of frame F, and free its storage.
1583 This is used when deleting a frame, and when turning off the menu bar. */
1586 free_frame_menubar (f
)
1589 Widget menubar_widget
;
1592 menubar_widget
= f
->display
.x
->menubar_widget
;
1596 id
= frame_vector_add_frame (f
);
1598 lw_destroy_all_widgets (id
);
1599 XVECTOR (frame_vector
)->contents
[id
] = Qnil
;
1604 #endif /* USE_X_TOOLKIT */
1606 /* xmenu_show actually displays a menu using the panes and items in menu_items
1607 and returns the value selected from it.
1608 There are two versions of xmenu_show, one for Xt and one for Xlib.
1609 Both assume input is blocked by the caller. */
1611 /* F is the frame the menu is for.
1612 X and Y are the frame-relative specified position,
1613 relative to the inside upper left corner of the frame F.
1614 FOR_CLICK if this menu was invoked for a mouse click.
1615 KEYMAPS is 1 if this menu was specified with keymaps;
1616 in that case, we return a list containing the chosen item's value
1617 and perhaps also the pane's prefix.
1618 TITLE is the specified menu title.
1619 ERROR is a place to store an error message string in case of failure.
1620 (We return nil on failure, but the value doesn't actually matter.) */
1622 #ifdef USE_X_TOOLKIT
1624 /* We need a unique id for each widget handled by the Lucid Widget
1625 library. This includes the frame main windows, popup menu and
1627 LWLIB_ID widget_id_tick
;
1630 static Lisp_Object
*volatile menu_item_selection
;
1632 static Lisp_Object
*menu_item_selection
;
1636 popup_selection_callback (widget
, id
, client_data
)
1639 XtPointer client_data
;
1641 menu_item_selection
= (Lisp_Object
*) client_data
;
1645 xmenu_show (f
, x
, y
, for_click
, keymaps
, title
, error
)
1659 widget_value
*wv
, *save_wv
= 0, *first_wv
= 0, *prev_wv
= 0;
1660 widget_value
**submenu_stack
1661 = (widget_value
**) alloca (menu_items_used
* sizeof (widget_value
*));
1662 Lisp_Object
*subprefix_stack
1663 = (Lisp_Object
*) alloca (menu_items_used
* sizeof (Lisp_Object
));
1664 int submenu_depth
= 0;
1666 Position root_x
, root_y
;
1669 int next_release_must_exit
= 0;
1673 if (menu_items_used
<= MENU_ITEMS_PANE_LENGTH
)
1675 *error
= "Empty menu";
1679 /* Create a tree of widget_value objects
1680 representing the panes and their items. */
1681 wv
= malloc_widget_value ();
1688 /* Loop over all panes and items, filling in the tree. */
1690 while (i
< menu_items_used
)
1692 if (EQ (XVECTOR (menu_items
)->contents
[i
], Qnil
))
1694 submenu_stack
[submenu_depth
++] = save_wv
;
1700 else if (EQ (XVECTOR (menu_items
)->contents
[i
], Qlambda
))
1703 save_wv
= submenu_stack
[--submenu_depth
];
1707 else if (EQ (XVECTOR (menu_items
)->contents
[i
], Qt
)
1708 && submenu_depth
!= 0)
1709 i
+= MENU_ITEMS_PANE_LENGTH
;
1710 /* Ignore a nil in the item list.
1711 It's meaningful only for dialog boxes. */
1712 else if (EQ (XVECTOR (menu_items
)->contents
[i
], Qquote
))
1714 else if (EQ (XVECTOR (menu_items
)->contents
[i
], Qt
))
1716 /* Create a new pane. */
1717 Lisp_Object pane_name
, prefix
;
1719 pane_name
= XVECTOR (menu_items
)->contents
[i
+ MENU_ITEMS_PANE_NAME
];
1720 prefix
= XVECTOR (menu_items
)->contents
[i
+ MENU_ITEMS_PANE_PREFIX
];
1721 pane_string
= (NILP (pane_name
)
1722 ? "" : (char *) XSTRING (pane_name
)->data
);
1723 /* If there is just one top-level pane, put all its items directly
1724 under the top-level menu. */
1725 if (menu_items_n_panes
== 1)
1728 /* If the pane has a meaningful name,
1729 make the pane a top-level menu item
1730 with its items as a submenu beneath it. */
1731 if (!keymaps
&& strcmp (pane_string
, ""))
1733 wv
= malloc_widget_value ();
1737 first_wv
->contents
= wv
;
1738 wv
->name
= pane_string
;
1739 if (keymaps
&& !NILP (prefix
))
1746 else if (first_pane
)
1752 i
+= MENU_ITEMS_PANE_LENGTH
;
1756 /* Create a new item within current pane. */
1757 Lisp_Object item_name
, enable
, descrip
, def
;
1758 item_name
= XVECTOR (menu_items
)->contents
[i
+ MENU_ITEMS_ITEM_NAME
];
1759 enable
= XVECTOR (menu_items
)->contents
[i
+ MENU_ITEMS_ITEM_ENABLE
];
1761 = XVECTOR (menu_items
)->contents
[i
+ MENU_ITEMS_ITEM_EQUIV_KEY
];
1762 def
= XVECTOR (menu_items
)->contents
[i
+ MENU_ITEMS_ITEM_DEFINITION
];
1764 wv
= malloc_widget_value ();
1768 save_wv
->contents
= wv
;
1769 wv
->name
= (char *) XSTRING (item_name
)->data
;
1770 if (!NILP (descrip
))
1771 wv
->key
= (char *) XSTRING (descrip
)->data
;
1773 /* If this item has a null value,
1774 make the call_data null so that it won't display a box
1775 when the mouse is on it. */
1777 = (!NILP (def
) ? (void *) &XVECTOR (menu_items
)->contents
[i
] : 0);
1778 wv
->enabled
= !NILP (enable
);
1781 i
+= MENU_ITEMS_ITEM_LENGTH
;
1785 /* Deal with the title, if it is non-nil. */
1788 widget_value
*wv_title
= malloc_widget_value ();
1789 widget_value
*wv_sep1
= malloc_widget_value ();
1790 widget_value
*wv_sep2
= malloc_widget_value ();
1792 wv_sep2
->name
= "--";
1793 wv_sep2
->next
= first_wv
->contents
;
1795 wv_sep1
->name
= "--";
1796 wv_sep1
->next
= wv_sep2
;
1798 wv_title
->name
= (char *) XSTRING (title
)->data
;
1799 wv_title
->enabled
= True
;
1800 wv_title
->next
= wv_sep1
;
1801 first_wv
->contents
= wv_title
;
1804 /* Actually create the menu. */
1805 menu_id
= ++widget_id_tick
;
1806 menu
= lw_create_widget ("popup", first_wv
->name
, menu_id
, first_wv
,
1807 f
->display
.x
->widget
, 1, 0,
1808 popup_selection_callback
,
1809 popup_deactivate_callback
);
1811 /* Don't allow any geometry request from the user. */
1812 XtSetArg (av
[ac
], XtNgeometry
, 0); ac
++;
1813 XtSetValues (menu
, av
, ac
);
1815 /* Free the widget_value objects we used to specify the contents. */
1816 free_menubar_widget_value_tree (first_wv
);
1818 /* No selection has been chosen yet. */
1819 menu_item_selection
= 0;
1821 /* Display the menu. */
1822 lw_popup_menu (menu
);
1823 popup_activated_flag
= 1;
1825 /* Process events that apply to the menu. */
1826 popup_get_selection ((XEvent
*) 0, FRAME_X_DISPLAY_INFO (f
));
1829 /* fp turned off the following statement and wrote a comment
1830 that it is unnecessary--that the menu has already disappeared.
1831 I observer that is not so. -- rms. */
1832 /* Make sure the menu disappears. */
1833 lw_destroy_all_widgets (menu_id
);
1836 /* Find the selected item, and its pane, to return
1837 the proper value. */
1838 if (menu_item_selection
!= 0)
1844 while (i
< menu_items_used
)
1848 if (EQ (XVECTOR (menu_items
)->contents
[i
], Qnil
))
1850 subprefix_stack
[submenu_depth
++] = prefix
;
1854 else if (EQ (XVECTOR (menu_items
)->contents
[i
], Qlambda
))
1856 prefix
= subprefix_stack
[--submenu_depth
];
1859 else if (EQ (XVECTOR (menu_items
)->contents
[i
], Qt
))
1862 = XVECTOR (menu_items
)->contents
[i
+ MENU_ITEMS_PANE_PREFIX
];
1863 i
+= MENU_ITEMS_PANE_LENGTH
;
1868 = XVECTOR (menu_items
)->contents
[i
+ MENU_ITEMS_ITEM_VALUE
];
1869 if (menu_item_selection
== &XVECTOR (menu_items
)->contents
[i
])
1875 entry
= Fcons (entry
, Qnil
);
1877 entry
= Fcons (prefix
, entry
);
1878 for (j
= submenu_depth
- 1; j
>= 0; j
--)
1879 if (!NILP (subprefix_stack
[j
]))
1880 entry
= Fcons (subprefix_stack
[j
], entry
);
1884 i
+= MENU_ITEMS_ITEM_LENGTH
;
1893 dialog_selection_callback (widget
, id
, client_data
)
1896 XtPointer client_data
;
1898 /* The EMACS_INT cast avoids a warning. There's no problem
1899 as long as pointers have enough bits to hold small integers. */
1900 if ((int) (EMACS_INT
) client_data
!= -1)
1901 menu_item_selection
= (Lisp_Object
*) client_data
;
1903 lw_destroy_all_widgets (id
);
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. */
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
);