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 <X11/Xaw/Paned.h>
71 #include "../lwlib/lwlib.h"
72 #else /* not USE_X_TOOLKIT */
73 #include "../oldXMenu/XMenu.h"
74 #endif /* not USE_X_TOOLKIT */
75 #endif /* HAVE_X_WINDOWS */
77 #define min(x,y) (((x) < (y)) ? (x) : (y))
78 #define max(x,y) (((x) > (y)) ? (x) : (y))
85 extern Lisp_Object Qmenu_enable
;
86 extern Lisp_Object Qmenu_bar
;
87 extern Lisp_Object Qmouse_click
, Qevent_kind
;
90 extern void process_expose_from_menu ();
91 extern XtAppContext Xt_app_con
;
93 static Lisp_Object
xdialog_show ();
94 void popup_get_selection ();
97 static Lisp_Object
xmenu_show ();
98 static void keymap_panes ();
99 static void single_keymap_panes ();
100 static void list_of_panes ();
101 static void list_of_items ();
103 /* This holds a Lisp vector that holds the results of decoding
104 the keymaps or alist-of-alists that specify a menu.
106 It describes the panes and items within the panes.
108 Each pane is described by 3 elements in the vector:
109 t, the pane name, the pane's prefix key.
110 Then follow the pane's items, with 5 elements per item:
111 the item string, the enable flag, the item's value,
112 the definition, and the equivalent keyboard key's description string.
114 In some cases, multiple levels of menus may be described.
115 A single vector slot containing nil indicates the start of a submenu.
116 A single vector slot containing lambda indicates the end of a submenu.
117 The submenu follows a menu item which is the way to reach the submenu.
119 A single vector slot containing quote indicates that the
120 following items should appear on the right of a dialog box.
122 Using a Lisp vector to hold this information while we decode it
123 takes care of protecting all the data from GC. */
125 #define MENU_ITEMS_PANE_NAME 1
126 #define MENU_ITEMS_PANE_PREFIX 2
127 #define MENU_ITEMS_PANE_LENGTH 3
129 #define MENU_ITEMS_ITEM_NAME 0
130 #define MENU_ITEMS_ITEM_ENABLE 1
131 #define MENU_ITEMS_ITEM_VALUE 2
132 #define MENU_ITEMS_ITEM_EQUIV_KEY 3
133 #define MENU_ITEMS_ITEM_DEFINITION 4
134 #define MENU_ITEMS_ITEM_LENGTH 5
136 static Lisp_Object menu_items
;
138 /* Number of slots currently allocated in menu_items. */
139 static int menu_items_allocated
;
141 /* This is the index in menu_items of the first empty slot. */
142 static int menu_items_used
;
144 /* The number of panes currently recorded in menu_items,
145 excluding those within submenus. */
146 static int menu_items_n_panes
;
148 /* Current depth within submenus. */
149 static int menu_items_submenu_depth
;
151 /* Flag which when set indicates a dialog or menu has been posted by
152 Xt on behalf of one of the widget sets. */
153 static int popup_activated_flag
;
155 /* This holds a Lisp vector
156 which contains frames that have menu bars.
157 Each frame that has a menu bar is found at some index in this vector
158 and the menu bar widget refers to the frame through that index. */
159 static Lisp_Object frame_vector
;
161 /* Return the index of FRAME in frame_vector.
162 If FRAME isn't in frame_vector yet, put it in,
163 lengthening the vector if necessary. */
166 frame_vector_add_frame (f
)
169 int length
= XVECTOR (frame_vector
)->size
;
171 Lisp_Object
new, frame
;
173 XSETFRAME (frame
, f
);
175 for (i
= 0; i
< length
; i
++)
177 if (EQ (frame
, XVECTOR (frame_vector
)->contents
[i
]))
179 if (NILP (XVECTOR (frame_vector
)->contents
[i
]))
185 XVECTOR (frame_vector
)->contents
[empty
] = frame
;
189 new = Fmake_vector (make_number (length
* 2), Qnil
);
190 bcopy (XVECTOR (frame_vector
)->contents
,
191 XVECTOR (new)->contents
, sizeof (Lisp_Object
) * length
);
193 XVECTOR (frame_vector
)->contents
[length
] = frame
;
197 /* Initialize the menu_items structure if we haven't already done so.
198 Also mark it as currently empty. */
203 if (NILP (menu_items
))
205 menu_items_allocated
= 60;
206 menu_items
= Fmake_vector (make_number (menu_items_allocated
), Qnil
);
210 menu_items_n_panes
= 0;
211 menu_items_submenu_depth
= 0;
214 /* Call at the end of generating the data in menu_items.
215 This fills in the number of items in the last pane. */
222 /* Call when finished using the data for the current menu
226 discard_menu_items ()
228 /* Free the structure if it is especially large.
229 Otherwise, hold on to it, to save time. */
230 if (menu_items_allocated
> 200)
233 menu_items_allocated
= 0;
237 /* Make the menu_items vector twice as large. */
243 int old_size
= menu_items_allocated
;
246 menu_items_allocated
*= 2;
247 menu_items
= Fmake_vector (make_number (menu_items_allocated
), Qnil
);
248 bcopy (XVECTOR (old
)->contents
, XVECTOR (menu_items
)->contents
,
249 old_size
* sizeof (Lisp_Object
));
252 /* Begin a submenu. */
255 push_submenu_start ()
257 if (menu_items_used
+ 1 > menu_items_allocated
)
260 XVECTOR (menu_items
)->contents
[menu_items_used
++] = Qnil
;
261 menu_items_submenu_depth
++;
269 if (menu_items_used
+ 1 > menu_items_allocated
)
272 XVECTOR (menu_items
)->contents
[menu_items_used
++] = Qlambda
;
273 menu_items_submenu_depth
--;
276 /* Indicate boundary between left and right. */
279 push_left_right_boundary ()
281 if (menu_items_used
+ 1 > menu_items_allocated
)
284 XVECTOR (menu_items
)->contents
[menu_items_used
++] = Qquote
;
287 /* Start a new menu pane in menu_items..
288 NAME is the pane name. PREFIX_VEC is a prefix key for this pane. */
291 push_menu_pane (name
, prefix_vec
)
292 Lisp_Object name
, prefix_vec
;
294 if (menu_items_used
+ MENU_ITEMS_PANE_LENGTH
> menu_items_allocated
)
297 if (menu_items_submenu_depth
== 0)
298 menu_items_n_panes
++;
299 XVECTOR (menu_items
)->contents
[menu_items_used
++] = Qt
;
300 XVECTOR (menu_items
)->contents
[menu_items_used
++] = name
;
301 XVECTOR (menu_items
)->contents
[menu_items_used
++] = prefix_vec
;
304 /* Push one menu item into the current pane.
305 NAME is the string to display. ENABLE if non-nil means
306 this item can be selected. KEY is the key generated by
307 choosing this item, or nil if this item doesn't really have a definition.
308 DEF is the definition of this item.
309 EQUIV is the textual description of the keyboard equivalent for
310 this item (or nil if none). */
313 push_menu_item (name
, enable
, key
, def
, equiv
)
314 Lisp_Object name
, enable
, key
, def
, equiv
;
316 if (menu_items_used
+ MENU_ITEMS_ITEM_LENGTH
> menu_items_allocated
)
319 XVECTOR (menu_items
)->contents
[menu_items_used
++] = name
;
320 XVECTOR (menu_items
)->contents
[menu_items_used
++] = enable
;
321 XVECTOR (menu_items
)->contents
[menu_items_used
++] = key
;
322 XVECTOR (menu_items
)->contents
[menu_items_used
++] = equiv
;
323 XVECTOR (menu_items
)->contents
[menu_items_used
++] = def
;
326 /* Figure out the current keyboard equivalent of a menu item ITEM1.
327 The item string for menu display should be ITEM_STRING.
328 Store the equivalent keyboard key sequence's
329 textual description into *DESCRIP_PTR.
330 Also cache them in the item itself.
331 Return the real definition to execute. */
334 menu_item_equiv_key (item_string
, item1
, descrip_ptr
)
335 Lisp_Object item_string
;
337 Lisp_Object
*descrip_ptr
;
339 /* This is the real definition--the function to run. */
341 /* This is the sublist that records cached equiv key data
342 so we can save time. */
343 Lisp_Object cachelist
;
344 /* These are the saved equivalent keyboard key sequence
345 and its key-description. */
346 Lisp_Object savedkey
, descrip
;
349 struct gcpro gcpro1
, gcpro2
, gcpro3
, gcpro4
;
351 /* If a help string follows the item string, skip it. */
352 if (CONSP (XCONS (item1
)->cdr
)
353 && STRINGP (XCONS (XCONS (item1
)->cdr
)->car
))
354 item1
= XCONS (item1
)->cdr
;
358 /* Get out the saved equivalent-keyboard-key info. */
359 cachelist
= savedkey
= descrip
= Qnil
;
360 if (CONSP (def
) && CONSP (XCONS (def
)->car
)
361 && (NILP (XCONS (XCONS (def
)->car
)->car
)
362 || VECTORP (XCONS (XCONS (def
)->car
)->car
)))
364 cachelist
= XCONS (def
)->car
;
365 def
= XCONS (def
)->cdr
;
366 savedkey
= XCONS (cachelist
)->car
;
367 descrip
= XCONS (cachelist
)->cdr
;
370 GCPRO4 (def
, def1
, savedkey
, descrip
);
372 /* Is it still valid? */
374 if (!NILP (savedkey
))
375 def1
= Fkey_binding (savedkey
, Qnil
);
376 /* If not, update it. */
378 /* If the command is an alias for another
379 (such as easymenu.el and lmenu.el set it up),
380 check if the original command matches the cached command. */
381 && !(SYMBOLP (def
) && SYMBOLP (XSYMBOL (def
)->function
)
382 && EQ (def1
, XSYMBOL (def
)->function
))
383 /* If something had no key binding before, don't recheck it--
384 doing that takes too much time and makes menus too slow. */
385 && !(!NILP (cachelist
) && NILP (savedkey
)))
389 /* If the command is an alias for another
390 (such as easymenu.el and lmenu.el set it up),
391 see if the original command name has equivalent keys. */
392 if (SYMBOLP (def
) && SYMBOLP (XSYMBOL (def
)->function
))
393 savedkey
= Fwhere_is_internal (XSYMBOL (def
)->function
,
396 /* Otherwise look up the specified command itself.
397 We don't try both, because that makes easymenu menus slow. */
398 savedkey
= Fwhere_is_internal (def
, Qnil
, Qt
, Qnil
);
400 if (!NILP (savedkey
))
402 descrip
= Fkey_description (savedkey
);
403 descrip
= concat2 (make_string (" (", 3), descrip
);
404 descrip
= concat2 (descrip
, make_string (")", 1));
408 /* Cache the data we just got in a sublist of the menu binding. */
409 if (NILP (cachelist
))
411 CHECK_IMPURE (item1
);
412 XCONS (item1
)->cdr
= Fcons (Fcons (savedkey
, descrip
), def
);
416 XCONS (cachelist
)->car
= savedkey
;
417 XCONS (cachelist
)->cdr
= descrip
;
421 *descrip_ptr
= descrip
;
425 /* This is used as the handler when calling internal_condition_case_1. */
428 menu_item_enabled_p_1 (arg
)
434 /* Return non-nil if the command DEF is enabled when used as a menu item.
435 This is based on looking for a menu-enable property.
436 If NOTREAL is set, don't bother really computing this. */
439 menu_item_enabled_p (def
, notreal
)
443 Lisp_Object enabled
, tem
;
450 /* No property, or nil, means enable.
451 Otherwise, enable if value is not nil. */
452 tem
= Fget (def
, Qmenu_enable
);
454 /* (condition-case nil (eval tem)
456 enabled
= internal_condition_case_1 (Feval
, tem
, Qerror
,
457 menu_item_enabled_p_1
);
462 /* Look through KEYMAPS, a vector of keymaps that is NMAPS long,
463 and generate menu panes for them in menu_items.
464 If NOTREAL is nonzero,
465 don't bother really computing whether an item is enabled. */
468 keymap_panes (keymaps
, nmaps
, notreal
)
469 Lisp_Object
*keymaps
;
477 /* Loop over the given keymaps, making a pane for each map.
478 But don't make a pane that is empty--ignore that map instead.
479 P is the number of panes we have made so far. */
480 for (mapno
= 0; mapno
< nmaps
; mapno
++)
481 single_keymap_panes (keymaps
[mapno
], Qnil
, Qnil
, notreal
);
483 finish_menu_items ();
486 /* This is a recursive subroutine of keymap_panes.
487 It handles one keymap, KEYMAP.
488 The other arguments are passed along
489 or point to local variables of the previous function.
490 If NOTREAL is nonzero,
491 don't bother really computing whether an item is enabled. */
494 single_keymap_panes (keymap
, pane_name
, prefix
, notreal
)
496 Lisp_Object pane_name
;
500 Lisp_Object pending_maps
;
501 Lisp_Object tail
, item
, item1
, item_string
, table
;
502 struct gcpro gcpro1
, gcpro2
, gcpro3
, gcpro4
;
506 push_menu_pane (pane_name
, prefix
);
508 for (tail
= keymap
; CONSP (tail
); tail
= XCONS (tail
)->cdr
)
510 /* Look at each key binding, and if it has a menu string,
511 make a menu item from it. */
512 item
= XCONS (tail
)->car
;
515 item1
= XCONS (item
)->cdr
;
518 item_string
= XCONS (item1
)->car
;
519 if (STRINGP (item_string
))
521 /* This is the real definition--the function to run. */
523 /* These are the saved equivalent keyboard key sequence
524 and its key-description. */
526 Lisp_Object tem
, enabled
;
528 /* GCPRO because ...enabled_p will call eval
529 and ..._equiv_key may autoload something.
530 Protecting KEYMAP preserves everything we use;
531 aside from that, must protect whatever might be
532 a string. Since there's no GCPRO5, we refetch
533 item_string instead of protecting it. */
534 descrip
= def
= Qnil
;
535 GCPRO4 (keymap
, pending_maps
, def
, descrip
);
537 def
= menu_item_equiv_key (item_string
, item1
, &descrip
);
538 enabled
= menu_item_enabled_p (def
, notreal
);
542 item_string
= XCONS (item1
)->car
;
544 tem
= Fkeymapp (def
);
545 if (XSTRING (item_string
)->data
[0] == '@' && !NILP (tem
))
546 pending_maps
= Fcons (Fcons (def
, Fcons (item_string
, XCONS (item
)->car
)),
551 GCPRO4 (keymap
, pending_maps
, descrip
, item_string
);
552 submap
= get_keymap_1 (def
, 0, 1);
554 #ifndef USE_X_TOOLKIT
555 /* Indicate visually that this is a submenu. */
557 item_string
= concat2 (item_string
,
558 build_string (" >"));
560 /* If definition is nil, pass nil as the key. */
561 push_menu_item (item_string
, enabled
,
562 XCONS (item
)->car
, def
,
565 /* Display a submenu using the toolkit. */
568 push_submenu_start ();
569 single_keymap_panes (submap
, Qnil
,
570 XCONS (item
)->car
, notreal
);
578 else if (VECTORP (item
))
580 /* Loop over the char values represented in the vector. */
581 int len
= XVECTOR (item
)->size
;
583 for (c
= 0; c
< len
; c
++)
585 Lisp_Object character
;
586 XSETFASTINT (character
, c
);
587 item1
= XVECTOR (item
)->contents
[c
];
590 item_string
= XCONS (item1
)->car
;
591 if (STRINGP (item_string
))
595 /* These are the saved equivalent keyboard key sequence
596 and its key-description. */
598 Lisp_Object tem
, enabled
;
600 /* GCPRO because ...enabled_p will call eval
601 and ..._equiv_key may autoload something.
602 Protecting KEYMAP preserves everything we use;
603 aside from that, must protect whatever might be
604 a string. Since there's no GCPRO5, we refetch
605 item_string instead of protecting it. */
606 GCPRO4 (keymap
, pending_maps
, def
, descrip
);
607 descrip
= def
= Qnil
;
609 def
= menu_item_equiv_key (item_string
, item1
, &descrip
);
610 enabled
= menu_item_enabled_p (def
, notreal
);
614 item_string
= XCONS (item1
)->car
;
616 tem
= Fkeymapp (def
);
617 if (XSTRING (item_string
)->data
[0] == '@' && !NILP (tem
))
618 pending_maps
= Fcons (Fcons (def
, Fcons (item_string
, character
)),
623 GCPRO4 (keymap
, pending_maps
, descrip
, item_string
);
624 submap
= get_keymap_1 (def
, 0, 1);
626 #ifndef USE_X_TOOLKIT
628 item_string
= concat2 (item_string
,
629 build_string (" >"));
631 /* If definition is nil, pass nil as the key. */
632 push_menu_item (item_string
, enabled
, character
,
637 push_submenu_start ();
638 single_keymap_panes (submap
, Qnil
,
650 /* Process now any submenus which want to be panes at this level. */
651 while (!NILP (pending_maps
))
653 Lisp_Object elt
, eltcdr
, string
;
654 elt
= Fcar (pending_maps
);
655 eltcdr
= XCONS (elt
)->cdr
;
656 string
= XCONS (eltcdr
)->car
;
657 /* We no longer discard the @ from the beginning of the string here.
658 Instead, we do this in xmenu_show. */
659 single_keymap_panes (Fcar (elt
), string
,
660 XCONS (eltcdr
)->cdr
, notreal
);
661 pending_maps
= Fcdr (pending_maps
);
665 /* Push all the panes and items of a menu decsribed by the
666 alist-of-alists MENU.
667 This handles old-fashioned calls to x-popup-menu. */
677 for (tail
= menu
; !NILP (tail
); tail
= Fcdr (tail
))
679 Lisp_Object elt
, pane_name
, pane_data
;
681 pane_name
= Fcar (elt
);
682 CHECK_STRING (pane_name
, 0);
683 push_menu_pane (pane_name
, Qnil
);
684 pane_data
= Fcdr (elt
);
685 CHECK_CONS (pane_data
, 0);
686 list_of_items (pane_data
);
689 finish_menu_items ();
692 /* Push the items in a single pane defined by the alist PANE. */
698 Lisp_Object tail
, item
, item1
;
700 for (tail
= pane
; !NILP (tail
); tail
= Fcdr (tail
))
704 push_menu_item (item
, Qnil
, Qnil
, Qt
, Qnil
);
705 else if (NILP (item
))
706 push_left_right_boundary ();
709 CHECK_CONS (item
, 0);
711 CHECK_STRING (item1
, 1);
712 push_menu_item (item1
, Qt
, Fcdr (item
), Qt
, Qnil
);
717 DEFUN ("x-popup-menu", Fx_popup_menu
, Sx_popup_menu
, 2, 2, 0,
718 "Pop up a deck-of-cards menu and return user's selection.\n\
719 POSITION is a position specification. This is either a mouse button event\n\
720 or a list ((XOFFSET YOFFSET) WINDOW)\n\
721 where XOFFSET and YOFFSET are positions in pixels from the top left\n\
722 corner of WINDOW's frame. (WINDOW may be a frame object instead of a window.)\n\
723 This controls the position of the center of the first line\n\
724 in the first pane of the menu, not the top left of the menu as a whole.\n\
725 If POSITION is t, it means to use the current mouse position.\n\
727 MENU is a specifier for a menu. For the simplest case, MENU is a keymap.\n\
728 The menu items come from key bindings that have a menu string as well as\n\
729 a definition; actually, the \"definition\" in such a key binding looks like\n\
730 \(STRING . REAL-DEFINITION). To give the menu a title, put a string into\n\
731 the keymap as a top-level element.\n\n\
732 You can also use a list of keymaps as MENU.\n\
733 Then each keymap makes a separate pane.\n\
734 When MENU is a keymap or a list of keymaps, the return value\n\
735 is a list of events.\n\n\
736 Alternatively, you can specify a menu of multiple panes\n\
737 with a list of the form (TITLE PANE1 PANE2...),\n\
738 where each pane is a list of form (TITLE ITEM1 ITEM2...).\n\
739 Each ITEM is normally a cons cell (STRING . VALUE);\n\
740 but a string can appear as an item--that makes a nonselectable line\n\
742 With this form of menu, the return value is VALUE from the chosen item.\n\
744 If POSITION is nil, don't display the menu at all, just precalculate the\n\
745 cached information about equivalent key sequences.")
747 Lisp_Object position
, menu
;
749 int number_of_panes
, panes
;
750 Lisp_Object keymap
, tem
;
754 Lisp_Object selection
;
757 Lisp_Object x
, y
, window
;
762 if (! NILP (position
))
766 /* Decode the first argument: find the window and the coordinates. */
767 if (EQ (position
, Qt
)
768 || (CONSP (position
) && EQ (XCONS (position
)->car
, Qmenu_bar
)))
770 /* Use the mouse's current position. */
771 FRAME_PTR new_f
= selected_frame
;
772 Lisp_Object bar_window
;
776 if (mouse_position_hook
)
777 (*mouse_position_hook
) (&new_f
, 1, &bar_window
,
778 &part
, &x
, &y
, &time
);
780 XSETFRAME (window
, new_f
);
783 window
= selected_window
;
790 tem
= Fcar (position
);
793 window
= Fcar (Fcdr (position
));
795 y
= Fcar (Fcdr (tem
));
800 tem
= Fcar (Fcdr (position
)); /* EVENT_START (position) */
801 window
= Fcar (tem
); /* POSN_WINDOW (tem) */
802 tem
= Fcar (Fcdr (Fcdr (tem
))); /* POSN_WINDOW_POSN (tem) */
811 /* Decode where to put the menu. */
819 else if (WINDOWP (window
))
821 CHECK_LIVE_WINDOW (window
, 0);
822 f
= XFRAME (WINDOW_FRAME (XWINDOW (window
)));
824 xpos
= (FONT_WIDTH (f
->display
.x
->font
) * XWINDOW (window
)->left
);
825 ypos
= (f
->display
.x
->line_height
* XWINDOW (window
)->top
);
828 /* ??? Not really clean; should be CHECK_WINDOW_OR_FRAME,
829 but I don't want to make one now. */
830 CHECK_WINDOW (window
, 0);
839 /* Decode the menu items from what was specified. */
841 keymap
= Fkeymapp (menu
);
844 tem
= Fkeymapp (Fcar (menu
));
847 /* We were given a keymap. Extract menu info from the keymap. */
849 keymap
= get_keymap (menu
);
851 /* Extract the detailed info to make one pane. */
852 keymap_panes (&menu
, 1, NILP (position
));
854 /* Search for a string appearing directly as an element of the keymap.
855 That string is the title of the menu. */
856 prompt
= map_prompt (keymap
);
858 /* Make that be the pane title of the first pane. */
859 if (!NILP (prompt
) && menu_items_n_panes
>= 0)
860 XVECTOR (menu_items
)->contents
[MENU_ITEMS_PANE_NAME
] = prompt
;
864 else if (!NILP (tem
))
866 /* We were given a list of keymaps. */
867 int nmaps
= XFASTINT (Flength (menu
));
869 = (Lisp_Object
*) alloca (nmaps
* sizeof (Lisp_Object
));
874 /* The first keymap that has a prompt string
875 supplies the menu title. */
876 for (tem
= menu
, i
= 0; CONSP (tem
); tem
= Fcdr (tem
))
880 maps
[i
++] = keymap
= get_keymap (Fcar (tem
));
882 prompt
= map_prompt (keymap
);
883 if (NILP (title
) && !NILP (prompt
))
887 /* Extract the detailed info to make one pane. */
888 keymap_panes (maps
, nmaps
, NILP (position
));
890 /* Make the title be the pane title of the first pane. */
891 if (!NILP (title
) && menu_items_n_panes
>= 0)
892 XVECTOR (menu_items
)->contents
[MENU_ITEMS_PANE_NAME
] = title
;
898 /* We were given an old-fashioned menu. */
900 CHECK_STRING (title
, 1);
902 list_of_panes (Fcdr (menu
));
909 discard_menu_items ();
914 /* Display them in a menu. */
917 selection
= xmenu_show (f
, xpos
, ypos
, for_click
,
918 keymaps
, title
, &error_name
);
921 discard_menu_items ();
925 if (error_name
) error (error_name
);
929 DEFUN ("x-popup-dialog", Fx_popup_dialog
, Sx_popup_dialog
, 2, 2, 0,
930 "Pop up a dialog box and return user's selection.\n\
931 POSITION specifies which frame to use.\n\
932 This is normally a mouse button event or a window or frame.\n\
933 If POSITION is t, it means to use the frame the mouse is on.\n\
934 The dialog box appears in the middle of the specified frame.\n\
936 CONTENTS specifies the alternatives to display in the dialog box.\n\
937 It is a list of the form (TITLE ITEM1 ITEM2...).\n\
938 Each ITEM is a cons cell (STRING . VALUE).\n\
939 The return value is VALUE from the chosen item.\n\n\
940 An ITEM may also be just a string--that makes a nonselectable item.\n\
941 An ITEM may also be nil--that means to put all preceding items\n\
942 on the left of the dialog box and all following items on the right.\n\
943 \(By default, approximately half appear on each side.)")
945 Lisp_Object position
, contents
;
952 /* Decode the first argument: find the window or frame to use. */
953 if (EQ (position
, Qt
)
954 || (CONSP (position
) && EQ (XCONS (position
)->car
, Qmenu_bar
)))
956 #if 0 /* Using the frame the mouse is on may not be right. */
957 /* Use the mouse's current position. */
958 FRAME_PTR new_f
= selected_frame
;
959 Lisp_Object bar_window
;
964 (*mouse_position_hook
) (&new_f
, 1, &bar_window
, &part
, &x
, &y
, &time
);
967 XSETFRAME (window
, new_f
);
969 window
= selected_window
;
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 ((LWLIB_ID
) 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",
1550 (LWLIB_ID
) id
, first_wv
,
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
;
1561 = (f
->display
.x
->menubar_widget
1562 ? (f
->display
.x
->menubar_widget
->core
.height
1563 + f
->display
.x
->menubar_widget
->core
.border_width
)
1566 if (FRAME_EXTERNAL_MENU_BAR (f
))
1569 XtVaGetValues (f
->display
.x
->column_widget
,
1570 XtNinternalBorderWidth
, &ibw
, NULL
);
1571 menubar_size
+= ibw
;
1574 f
->display
.x
->menubar_height
= menubar_size
;
1577 free_menubar_widget_value_tree (first_wv
);
1579 /* Don't update the menubar the first time it is created via x_window. */
1581 update_frame_menubar (f
);
1586 /* Called from Fx_create_frame to create the inital menubar of a frame
1587 before it is mapped, so that the window is mapped with the menubar already
1588 there instead of us tacking it on later and thrashing the window after it
1592 initialize_frame_menubar (f
)
1595 /* This function is called before the first chance to redisplay
1596 the frame. It has to be, so the frame will have the right size. */
1597 FRAME_MENU_BAR_ITEMS (f
) = menu_bar_items (FRAME_MENU_BAR_ITEMS (f
));
1598 set_frame_menubar (f
, 1);
1601 /* Get rid of the menu bar of frame F, and free its storage.
1602 This is used when deleting a frame, and when turning off the menu bar. */
1605 free_frame_menubar (f
)
1608 Widget menubar_widget
;
1611 menubar_widget
= f
->display
.x
->menubar_widget
;
1615 id
= frame_vector_add_frame (f
);
1617 lw_destroy_all_widgets ((LWLIB_ID
) id
);
1618 XVECTOR (frame_vector
)->contents
[id
] = Qnil
;
1623 #endif /* USE_X_TOOLKIT */
1625 /* xmenu_show actually displays a menu using the panes and items in menu_items
1626 and returns the value selected from it.
1627 There are two versions of xmenu_show, one for Xt and one for Xlib.
1628 Both assume input is blocked by the caller. */
1630 /* F is the frame the menu is for.
1631 X and Y are the frame-relative specified position,
1632 relative to the inside upper left corner of the frame F.
1633 FOR_CLICK if this menu was invoked for a mouse click.
1634 KEYMAPS is 1 if this menu was specified with keymaps;
1635 in that case, we return a list containing the chosen item's value
1636 and perhaps also the pane's prefix.
1637 TITLE is the specified menu title.
1638 ERROR is a place to store an error message string in case of failure.
1639 (We return nil on failure, but the value doesn't actually matter.) */
1641 #ifdef USE_X_TOOLKIT
1643 /* We need a unique id for each widget handled by the Lucid Widget
1646 For the main windows, and popup menus, we use this counter,
1647 which we increment each time after use.
1649 For menu bars, we use the index of the frame in frame_vector
1651 LWLIB_ID widget_id_tick
;
1654 static Lisp_Object
*volatile menu_item_selection
;
1656 static Lisp_Object
*menu_item_selection
;
1660 popup_selection_callback (widget
, id
, client_data
)
1663 XtPointer client_data
;
1665 menu_item_selection
= (Lisp_Object
*) client_data
;
1669 xmenu_show (f
, x
, y
, for_click
, keymaps
, title
, error
)
1683 widget_value
*wv
, *save_wv
= 0, *first_wv
= 0, *prev_wv
= 0;
1684 widget_value
**submenu_stack
1685 = (widget_value
**) alloca (menu_items_used
* sizeof (widget_value
*));
1686 Lisp_Object
*subprefix_stack
1687 = (Lisp_Object
*) alloca (menu_items_used
* sizeof (Lisp_Object
));
1688 int submenu_depth
= 0;
1690 Position root_x
, root_y
;
1693 int next_release_must_exit
= 0;
1697 if (menu_items_used
<= MENU_ITEMS_PANE_LENGTH
)
1699 *error
= "Empty menu";
1703 /* Create a tree of widget_value objects
1704 representing the panes and their items. */
1705 wv
= malloc_widget_value ();
1712 /* Loop over all panes and items, filling in the tree. */
1714 while (i
< menu_items_used
)
1716 if (EQ (XVECTOR (menu_items
)->contents
[i
], Qnil
))
1718 submenu_stack
[submenu_depth
++] = save_wv
;
1724 else if (EQ (XVECTOR (menu_items
)->contents
[i
], Qlambda
))
1727 save_wv
= submenu_stack
[--submenu_depth
];
1731 else if (EQ (XVECTOR (menu_items
)->contents
[i
], Qt
)
1732 && submenu_depth
!= 0)
1733 i
+= MENU_ITEMS_PANE_LENGTH
;
1734 /* Ignore a nil in the item list.
1735 It's meaningful only for dialog boxes. */
1736 else if (EQ (XVECTOR (menu_items
)->contents
[i
], Qquote
))
1738 else if (EQ (XVECTOR (menu_items
)->contents
[i
], Qt
))
1740 /* Create a new pane. */
1741 Lisp_Object pane_name
, prefix
;
1743 pane_name
= XVECTOR (menu_items
)->contents
[i
+ MENU_ITEMS_PANE_NAME
];
1744 prefix
= XVECTOR (menu_items
)->contents
[i
+ MENU_ITEMS_PANE_PREFIX
];
1745 pane_string
= (NILP (pane_name
)
1746 ? "" : (char *) XSTRING (pane_name
)->data
);
1747 /* If there is just one top-level pane, put all its items directly
1748 under the top-level menu. */
1749 if (menu_items_n_panes
== 1)
1752 /* If the pane has a meaningful name,
1753 make the pane a top-level menu item
1754 with its items as a submenu beneath it. */
1755 if (!keymaps
&& strcmp (pane_string
, ""))
1757 wv
= malloc_widget_value ();
1761 first_wv
->contents
= wv
;
1762 wv
->name
= pane_string
;
1763 if (keymaps
&& !NILP (prefix
))
1770 else if (first_pane
)
1776 i
+= MENU_ITEMS_PANE_LENGTH
;
1780 /* Create a new item within current pane. */
1781 Lisp_Object item_name
, enable
, descrip
, def
;
1782 item_name
= XVECTOR (menu_items
)->contents
[i
+ MENU_ITEMS_ITEM_NAME
];
1783 enable
= XVECTOR (menu_items
)->contents
[i
+ MENU_ITEMS_ITEM_ENABLE
];
1785 = XVECTOR (menu_items
)->contents
[i
+ MENU_ITEMS_ITEM_EQUIV_KEY
];
1786 def
= XVECTOR (menu_items
)->contents
[i
+ MENU_ITEMS_ITEM_DEFINITION
];
1788 wv
= malloc_widget_value ();
1792 save_wv
->contents
= wv
;
1793 wv
->name
= (char *) XSTRING (item_name
)->data
;
1794 if (!NILP (descrip
))
1795 wv
->key
= (char *) XSTRING (descrip
)->data
;
1797 /* If this item has a null value,
1798 make the call_data null so that it won't display a box
1799 when the mouse is on it. */
1801 = (!NILP (def
) ? (void *) &XVECTOR (menu_items
)->contents
[i
] : 0);
1802 wv
->enabled
= !NILP (enable
);
1805 i
+= MENU_ITEMS_ITEM_LENGTH
;
1809 /* Deal with the title, if it is non-nil. */
1812 widget_value
*wv_title
= malloc_widget_value ();
1813 widget_value
*wv_sep1
= malloc_widget_value ();
1814 widget_value
*wv_sep2
= malloc_widget_value ();
1816 wv_sep2
->name
= "--";
1817 wv_sep2
->next
= first_wv
->contents
;
1819 wv_sep1
->name
= "--";
1820 wv_sep1
->next
= wv_sep2
;
1822 wv_title
->name
= (char *) XSTRING (title
)->data
;
1823 wv_title
->enabled
= True
;
1824 wv_title
->next
= wv_sep1
;
1825 first_wv
->contents
= wv_title
;
1828 /* Actually create the menu. */
1829 menu_id
= widget_id_tick
++;
1830 menu
= lw_create_widget ("popup", first_wv
->name
, menu_id
, first_wv
,
1831 f
->display
.x
->widget
, 1, 0,
1832 popup_selection_callback
,
1833 popup_deactivate_callback
);
1835 /* Don't allow any geometry request from the user. */
1836 XtSetArg (av
[ac
], XtNgeometry
, 0); ac
++;
1837 XtSetValues (menu
, av
, ac
);
1839 /* Free the widget_value objects we used to specify the contents. */
1840 free_menubar_widget_value_tree (first_wv
);
1842 /* No selection has been chosen yet. */
1843 menu_item_selection
= 0;
1845 /* Display the menu. */
1846 lw_popup_menu (menu
);
1847 popup_activated_flag
= 1;
1849 /* Process events that apply to the menu. */
1850 popup_get_selection ((XEvent
*) 0, FRAME_X_DISPLAY_INFO (f
));
1853 /* fp turned off the following statement and wrote a comment
1854 that it is unnecessary--that the menu has already disappeared.
1855 I observer that is not so. -- rms. */
1856 /* Make sure the menu disappears. */
1857 lw_destroy_all_widgets (menu_id
);
1860 /* Find the selected item, and its pane, to return
1861 the proper value. */
1862 if (menu_item_selection
!= 0)
1864 Lisp_Object prefix
, entry
;
1868 while (i
< menu_items_used
)
1870 if (EQ (XVECTOR (menu_items
)->contents
[i
], Qnil
))
1872 subprefix_stack
[submenu_depth
++] = prefix
;
1876 else if (EQ (XVECTOR (menu_items
)->contents
[i
], Qlambda
))
1878 prefix
= subprefix_stack
[--submenu_depth
];
1881 else if (EQ (XVECTOR (menu_items
)->contents
[i
], Qt
))
1884 = XVECTOR (menu_items
)->contents
[i
+ MENU_ITEMS_PANE_PREFIX
];
1885 i
+= MENU_ITEMS_PANE_LENGTH
;
1890 = XVECTOR (menu_items
)->contents
[i
+ MENU_ITEMS_ITEM_VALUE
];
1891 if (menu_item_selection
== &XVECTOR (menu_items
)->contents
[i
])
1897 entry
= Fcons (entry
, Qnil
);
1899 entry
= Fcons (prefix
, entry
);
1900 for (j
= submenu_depth
- 1; j
>= 0; j
--)
1901 if (!NILP (subprefix_stack
[j
]))
1902 entry
= Fcons (subprefix_stack
[j
], entry
);
1906 i
+= MENU_ITEMS_ITEM_LENGTH
;
1915 dialog_selection_callback (widget
, id
, client_data
)
1918 XtPointer client_data
;
1920 /* The EMACS_INT cast avoids a warning. There's no problem
1921 as long as pointers have enough bits to hold small integers. */
1922 if ((int) (EMACS_INT
) client_data
!= -1)
1923 menu_item_selection
= (Lisp_Object
*) client_data
;
1925 lw_destroy_all_widgets (id
);
1927 popup_activated_flag
= 0;
1930 static char * button_names
[] = {
1931 "button1", "button2", "button3", "button4", "button5",
1932 "button6", "button7", "button8", "button9", "button10" };
1935 xdialog_show (f
, keymaps
, title
, error
)
1941 int i
, nb_buttons
=0;
1944 char dialog_name
[6];
1946 widget_value
*wv
, *save_wv
= 0, *first_wv
= 0, *prev_wv
= 0;
1948 /* Number of elements seen so far, before boundary. */
1950 /* 1 means we've seen the boundary between left-hand elts and right-hand. */
1951 int boundary_seen
= 0;
1955 if (menu_items_n_panes
> 1)
1957 *error
= "Multiple panes in dialog box";
1961 /* Create a tree of widget_value objects
1962 representing the text label and buttons. */
1964 Lisp_Object pane_name
, prefix
;
1966 pane_name
= XVECTOR (menu_items
)->contents
[MENU_ITEMS_PANE_NAME
];
1967 prefix
= XVECTOR (menu_items
)->contents
[MENU_ITEMS_PANE_PREFIX
];
1968 pane_string
= (NILP (pane_name
)
1969 ? "" : (char *) XSTRING (pane_name
)->data
);
1970 prev_wv
= malloc_widget_value ();
1971 prev_wv
->value
= pane_string
;
1972 if (keymaps
&& !NILP (prefix
))
1974 prev_wv
->enabled
= 1;
1975 prev_wv
->name
= "message";
1978 /* Loop over all panes and items, filling in the tree. */
1979 i
= MENU_ITEMS_PANE_LENGTH
;
1980 while (i
< menu_items_used
)
1983 /* Create a new item within current pane. */
1984 Lisp_Object item_name
, enable
, descrip
;
1985 item_name
= XVECTOR (menu_items
)->contents
[i
+ MENU_ITEMS_ITEM_NAME
];
1986 enable
= XVECTOR (menu_items
)->contents
[i
+ MENU_ITEMS_ITEM_ENABLE
];
1988 = XVECTOR (menu_items
)->contents
[i
+ MENU_ITEMS_ITEM_EQUIV_KEY
];
1990 if (NILP (item_name
))
1992 free_menubar_widget_value_tree (first_wv
);
1993 *error
= "Submenu in dialog items";
1996 if (EQ (item_name
, Qquote
))
1998 /* This is the boundary between left-side elts
1999 and right-side elts. Stop incrementing right_count. */
2004 if (nb_buttons
>= 10)
2006 free_menubar_widget_value_tree (first_wv
);
2007 *error
= "Too many dialog items";
2011 wv
= malloc_widget_value ();
2013 wv
->name
= (char *) button_names
[nb_buttons
];
2014 if (!NILP (descrip
))
2015 wv
->key
= (char *) XSTRING (descrip
)->data
;
2016 wv
->value
= (char *) XSTRING (item_name
)->data
;
2017 wv
->call_data
= (void *) &XVECTOR (menu_items
)->contents
[i
];
2018 wv
->enabled
= !NILP (enable
);
2021 if (! boundary_seen
)
2025 i
+= MENU_ITEMS_ITEM_LENGTH
;
2028 /* If the boundary was not specified,
2029 by default put half on the left and half on the right. */
2030 if (! boundary_seen
)
2031 left_count
= nb_buttons
- nb_buttons
/ 2;
2033 wv
= malloc_widget_value ();
2034 wv
->name
= dialog_name
;
2036 /* Dialog boxes use a really stupid name encoding
2037 which specifies how many buttons to use
2038 and how many buttons are on the right.
2039 The Q means something also. */
2040 dialog_name
[0] = 'Q';
2041 dialog_name
[1] = '0' + nb_buttons
;
2042 dialog_name
[2] = 'B';
2043 dialog_name
[3] = 'R';
2044 /* Number of buttons to put on the right. */
2045 dialog_name
[4] = '0' + nb_buttons
- left_count
;
2047 wv
->contents
= first_wv
;
2051 /* Actually create the dialog. */
2052 dialog_id
= widget_id_tick
++;
2053 menu
= lw_create_widget (first_wv
->name
, "dialog", dialog_id
, first_wv
,
2054 f
->display
.x
->widget
, 1, 0,
2055 dialog_selection_callback
, 0);
2056 lw_modify_all_widgets (dialog_id
, first_wv
->contents
, True
);
2057 /* Free the widget_value objects we used to specify the contents. */
2058 free_menubar_widget_value_tree (first_wv
);
2060 /* No selection has been chosen yet. */
2061 menu_item_selection
= 0;
2063 /* Display the menu. */
2064 lw_pop_up_all_widgets (dialog_id
);
2065 popup_activated_flag
= 1;
2067 /* Process events that apply to the menu. */
2068 popup_get_selection ((XEvent
*) 0, FRAME_X_DISPLAY_INFO (f
));
2070 /* Find the selected item, and its pane, to return
2071 the proper value. */
2072 if (menu_item_selection
!= 0)
2078 while (i
< menu_items_used
)
2082 if (EQ (XVECTOR (menu_items
)->contents
[i
], Qt
))
2085 = XVECTOR (menu_items
)->contents
[i
+ MENU_ITEMS_PANE_PREFIX
];
2086 i
+= MENU_ITEMS_PANE_LENGTH
;
2091 = XVECTOR (menu_items
)->contents
[i
+ MENU_ITEMS_ITEM_VALUE
];
2092 if (menu_item_selection
== &XVECTOR (menu_items
)->contents
[i
])
2096 entry
= Fcons (entry
, Qnil
);
2098 entry
= Fcons (prefix
, entry
);
2102 i
+= MENU_ITEMS_ITEM_LENGTH
;
2109 #else /* not USE_X_TOOLKIT */
2112 xmenu_show (f
, x
, y
, for_click
, keymaps
, title
, error
)
2122 int pane
, selidx
, lpane
, status
;
2123 Lisp_Object entry
, pane_prefix
;
2125 int ulx
, uly
, width
, height
;
2126 int dispwidth
, dispheight
;
2130 unsigned int dummy_uint
;
2133 if (menu_items_n_panes
== 0)
2136 if (menu_items_used
<= MENU_ITEMS_PANE_LENGTH
)
2138 *error
= "Empty menu";
2142 /* Figure out which root window F is on. */
2143 XGetGeometry (FRAME_X_DISPLAY (f
), FRAME_X_WINDOW (f
), &root
,
2144 &dummy_int
, &dummy_int
, &dummy_uint
, &dummy_uint
,
2145 &dummy_uint
, &dummy_uint
);
2147 /* Make the menu on that window. */
2148 menu
= XMenuCreate (FRAME_X_DISPLAY (f
), root
, "emacs");
2151 *error
= "Can't create menu";
2155 #ifdef HAVE_X_WINDOWS
2156 /* Adjust coordinates to relative to the outer (window manager) window. */
2159 int win_x
= 0, win_y
= 0;
2161 /* Find the position of the outside upper-left corner of
2162 the inner window, with respect to the outer window. */
2163 if (f
->display
.x
->parent_desc
!= FRAME_X_DISPLAY_INFO (f
)->root_window
)
2166 XTranslateCoordinates (FRAME_X_DISPLAY (f
),
2168 /* From-window, to-window. */
2169 f
->display
.x
->window_desc
,
2170 f
->display
.x
->parent_desc
,
2172 /* From-position, to-position. */
2173 0, 0, &win_x
, &win_y
,
2175 /* Child of window. */
2182 #endif /* HAVE_X_WINDOWS */
2184 /* Adjust coordinates to be root-window-relative. */
2185 x
+= f
->display
.x
->left_pos
;
2186 y
+= f
->display
.x
->top_pos
;
2188 /* Create all the necessary panes and their items. */
2190 while (i
< menu_items_used
)
2192 if (EQ (XVECTOR (menu_items
)->contents
[i
], Qt
))
2194 /* Create a new pane. */
2195 Lisp_Object pane_name
, prefix
;
2198 pane_name
= XVECTOR (menu_items
)->contents
[i
+ MENU_ITEMS_PANE_NAME
];
2199 prefix
= XVECTOR (menu_items
)->contents
[i
+ MENU_ITEMS_PANE_PREFIX
];
2200 pane_string
= (NILP (pane_name
)
2201 ? "" : (char *) XSTRING (pane_name
)->data
);
2202 if (keymaps
&& !NILP (prefix
))
2205 lpane
= XMenuAddPane (FRAME_X_DISPLAY (f
), menu
, pane_string
, TRUE
);
2206 if (lpane
== XM_FAILURE
)
2208 XMenuDestroy (FRAME_X_DISPLAY (f
), menu
);
2209 *error
= "Can't create pane";
2212 i
+= MENU_ITEMS_PANE_LENGTH
;
2214 /* Find the width of the widest item in this pane. */
2217 while (j
< menu_items_used
)
2220 item
= XVECTOR (menu_items
)->contents
[j
];
2228 width
= XSTRING (item
)->size
;
2229 if (width
> maxwidth
)
2232 j
+= MENU_ITEMS_ITEM_LENGTH
;
2235 /* Ignore a nil in the item list.
2236 It's meaningful only for dialog boxes. */
2237 else if (EQ (XVECTOR (menu_items
)->contents
[i
], Qquote
))
2241 /* Create a new item within current pane. */
2242 Lisp_Object item_name
, enable
, descrip
;
2243 unsigned char *item_data
;
2245 item_name
= XVECTOR (menu_items
)->contents
[i
+ MENU_ITEMS_ITEM_NAME
];
2246 enable
= XVECTOR (menu_items
)->contents
[i
+ MENU_ITEMS_ITEM_ENABLE
];
2248 = XVECTOR (menu_items
)->contents
[i
+ MENU_ITEMS_ITEM_EQUIV_KEY
];
2249 if (!NILP (descrip
))
2251 int gap
= maxwidth
- XSTRING (item_name
)->size
;
2254 spacer
= Fmake_string (make_number (gap
), make_number (' '));
2255 item_name
= concat2 (item_name
, spacer
);
2256 item_name
= concat2 (item_name
, descrip
);
2257 item_data
= XSTRING (item_name
)->data
;
2259 /* if alloca is fast, use that to make the space,
2260 to reduce gc needs. */
2262 = (unsigned char *) alloca (maxwidth
2263 + XSTRING (descrip
)->size
+ 1);
2264 bcopy (XSTRING (item_name
)->data
, item_data
,
2265 XSTRING (item_name
)->size
);
2266 for (j
= XSTRING (item_name
)->size
; j
< maxwidth
; j
++)
2268 bcopy (XSTRING (descrip
)->data
, item_data
+ j
,
2269 XSTRING (descrip
)->size
);
2270 item_data
[j
+ XSTRING (descrip
)->size
] = 0;
2274 item_data
= XSTRING (item_name
)->data
;
2276 if (XMenuAddSelection (FRAME_X_DISPLAY (f
),
2277 menu
, lpane
, 0, item_data
,
2281 XMenuDestroy (FRAME_X_DISPLAY (f
), menu
);
2282 *error
= "Can't add selection to menu";
2285 i
+= MENU_ITEMS_ITEM_LENGTH
;
2289 /* All set and ready to fly. */
2290 XMenuRecompute (FRAME_X_DISPLAY (f
), menu
);
2291 dispwidth
= DisplayWidth (FRAME_X_DISPLAY (f
),
2292 XScreenNumberOfScreen (FRAME_X_SCREEN (f
)));
2293 dispheight
= DisplayHeight (FRAME_X_DISPLAY (f
),
2294 XScreenNumberOfScreen (FRAME_X_SCREEN (f
)));
2295 x
= min (x
, dispwidth
);
2296 y
= min (y
, dispheight
);
2299 XMenuLocate (FRAME_X_DISPLAY (f
), menu
, 0, 0, x
, y
,
2300 &ulx
, &uly
, &width
, &height
);
2301 if (ulx
+width
> dispwidth
)
2303 x
-= (ulx
+ width
) - dispwidth
;
2304 ulx
= dispwidth
- width
;
2306 if (uly
+height
> dispheight
)
2308 y
-= (uly
+ height
) - dispheight
;
2309 uly
= dispheight
- height
;
2311 if (ulx
< 0) x
-= ulx
;
2312 if (uly
< 0) y
-= uly
;
2314 XMenuSetAEQ (menu
, TRUE
);
2315 XMenuSetFreeze (menu
, TRUE
);
2318 status
= XMenuActivate (FRAME_X_DISPLAY (f
), menu
, &pane
, &selidx
,
2319 x
, y
, ButtonReleaseMask
, &datap
);
2322 /* Assume the mouse has moved out of the X window.
2323 If it has actually moved in, we will get an EnterNotify. */
2324 x_mouse_leave (FRAME_X_DISPLAY_INFO (f
));
2330 fprintf (stderr
, "pane= %d line = %d\n", panes
, selidx
);
2333 /* Find the item number SELIDX in pane number PANE. */
2335 while (i
< menu_items_used
)
2337 if (EQ (XVECTOR (menu_items
)->contents
[i
], Qt
))
2341 = XVECTOR (menu_items
)->contents
[i
+ MENU_ITEMS_PANE_PREFIX
];
2343 i
+= MENU_ITEMS_PANE_LENGTH
;
2352 = XVECTOR (menu_items
)->contents
[i
+ MENU_ITEMS_ITEM_VALUE
];
2355 entry
= Fcons (entry
, Qnil
);
2356 if (!NILP (pane_prefix
))
2357 entry
= Fcons (pane_prefix
, entry
);
2363 i
+= MENU_ITEMS_ITEM_LENGTH
;
2369 *error
= "Can't activate menu";
2375 XMenuDestroy (FRAME_X_DISPLAY (f
), menu
);
2377 #ifdef HAVE_X_WINDOWS
2378 /* State that no mouse buttons are now held.
2379 (The oldXMenu code doesn't track this info for us.)
2380 That is not necessarily true, but the fiction leads to reasonable
2381 results, and it is a pain to ask which are actually held now. */
2382 FRAME_X_DISPLAY_INFO (f
)->grabbed
= 0;
2388 #endif /* not USE_X_TOOLKIT */
2392 staticpro (&menu_items
);
2395 #ifdef USE_X_TOOLKIT
2396 widget_id_tick
= (1<<16);
2399 staticpro (&frame_vector
);
2400 frame_vector
= Fmake_vector (make_number (10), Qnil
);
2402 defsubr (&Sx_popup_menu
);
2403 defsubr (&Sx_popup_dialog
);