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
))
955 #if 0 /* Using the frame the mouse is on may not be right. */
956 /* Use the mouse's current position. */
957 FRAME_PTR new_f
= selected_frame
;
958 Lisp_Object bar_window
;
963 (*mouse_position_hook
) (&new_f
, 1, &bar_window
, &part
, &x
, &y
, &time
);
966 XSETFRAME (window
, new_f
);
968 window
= selected_window
;
970 /* Decode the first argument: find the window and the coordinates. */
971 if (EQ (position
, Qt
))
972 window
= selected_window
;
974 else if (CONSP (position
))
977 tem
= Fcar (position
);
979 window
= Fcar (Fcdr (position
));
982 tem
= Fcar (Fcdr (position
)); /* EVENT_START (position) */
983 window
= Fcar (tem
); /* POSN_WINDOW (tem) */
986 else if (WINDOWP (position
) || FRAMEP (position
))
989 /* Decode where to put the menu. */
993 else if (WINDOWP (window
))
995 CHECK_LIVE_WINDOW (window
, 0);
996 f
= XFRAME (WINDOW_FRAME (XWINDOW (window
)));
999 /* ??? Not really clean; should be CHECK_WINDOW_OR_FRAME,
1000 but I don't want to make one now. */
1001 CHECK_WINDOW (window
, 0);
1003 #ifndef USE_X_TOOLKIT
1004 /* Display a menu with these alternatives
1005 in the middle of frame F. */
1007 Lisp_Object x
, y
, frame
, newpos
;
1008 XSETFRAME (frame
, f
);
1009 XSETINT (x
, x_pixel_width (f
) / 2);
1010 XSETINT (y
, x_pixel_height (f
) / 2);
1011 newpos
= Fcons (Fcons (x
, Fcons (y
, Qnil
)), Fcons (frame
, Qnil
));
1013 return Fx_popup_menu (newpos
,
1014 Fcons (Fcar (contents
), Fcons (contents
, Qnil
)));
1020 Lisp_Object selection
;
1022 /* Decode the dialog items from what was specified. */
1023 title
= Fcar (contents
);
1024 CHECK_STRING (title
, 1);
1026 list_of_panes (Fcons (contents
, Qnil
));
1028 /* Display them in a dialog box. */
1030 selection
= xdialog_show (f
, 0, title
, &error_name
);
1033 discard_menu_items ();
1035 if (error_name
) error (error_name
);
1041 #ifdef USE_X_TOOLKIT
1043 /* Loop in Xt until the menu pulldown or dialog popup has been
1044 popped down (deactivated).
1046 NOTE: All calls to popup_get_selection() should be protected
1047 with BLOCK_INPUT, UNBLOCK_INPUT wrappers. */
1050 popup_get_selection (initial_event
, dpyinfo
)
1051 XEvent
*initial_event
;
1052 struct x_display_info
*dpyinfo
;
1056 /* Define a queue to save up for later unreading
1057 all X events that don't pertain to the menu. */
1061 struct event_queue
*next
;
1064 struct event_queue
*queue
= NULL
;
1065 struct event_queue
*queue_tmp
;
1068 event
= *initial_event
;
1070 XtAppNextEvent (Xt_app_con
, &event
);
1074 /* Handle expose events for editor frames right away. */
1075 if (event
.type
== Expose
)
1076 process_expose_from_menu (event
);
1077 /* Make sure we don't consider buttons grabbed after menu goes. */
1078 else if (event
.type
== ButtonRelease
1079 && dpyinfo
->display
== event
.xbutton
.display
)
1080 dpyinfo
->grabbed
&= ~(1 << event
.xbutton
.button
);
1082 /* Queue all events not for this popup,
1083 except for Expose, which we've already handled.
1084 Note that the X window is associated with the frame if this
1085 is a menu bar popup, but not if it's a dialog box. So we use
1086 x_non_menubar_window_to_frame, not x_any_window_to_frame. */
1087 if (event
.type
!= Expose
1088 && (event
.xany
.display
!= dpyinfo
->display
1089 || x_non_menubar_window_to_frame (dpyinfo
, event
.xany
.window
)))
1091 queue_tmp
= (struct event_queue
*) malloc (sizeof (struct event_queue
));
1093 if (queue_tmp
!= NULL
)
1095 queue_tmp
->event
= event
;
1096 queue_tmp
->next
= queue
;
1101 XtDispatchEvent (&event
);
1103 if (!popup_activated ())
1105 XtAppNextEvent (Xt_app_con
, &event
);
1108 /* Unread any events that we got but did not handle. */
1109 while (queue
!= NULL
)
1112 XPutBackEvent (queue_tmp
->event
.xany
.display
, &queue_tmp
->event
);
1113 queue
= queue_tmp
->next
;
1114 free ((char *)queue_tmp
);
1115 /* Cause these events to get read as soon as we UNBLOCK_INPUT. */
1116 interrupt_input_pending
= 1;
1120 /* Detect if a dialog or menu has been posted. */
1125 return popup_activated_flag
;
1129 /* This callback is invoked when the user selects a menubar cascade
1130 pushbutton, but before the pulldown menu is posted. */
1133 popup_activate_callback (widget
, id
, client_data
)
1136 XtPointer client_data
;
1138 popup_activated_flag
= 1;
1141 /* This callback is called from the menu bar pulldown menu
1142 when the user makes a selection.
1143 Figure out what the user chose
1144 and put the appropriate events into the keyboard buffer. */
1147 menubar_selection_callback (widget
, id
, client_data
)
1150 XtPointer client_data
;
1152 Lisp_Object prefix
, entry
;
1153 FRAME_PTR f
= XFRAME (XVECTOR (frame_vector
)->contents
[id
]);
1155 Lisp_Object
*subprefix_stack
;
1156 int submenu_depth
= 0;
1161 subprefix_stack
= (Lisp_Object
*) alloca (f
->menu_bar_items_used
* sizeof (Lisp_Object
));
1162 vector
= f
->menu_bar_vector
;
1165 while (i
< f
->menu_bar_items_used
)
1167 if (EQ (XVECTOR (vector
)->contents
[i
], Qnil
))
1169 subprefix_stack
[submenu_depth
++] = prefix
;
1173 else if (EQ (XVECTOR (vector
)->contents
[i
], Qlambda
))
1175 prefix
= subprefix_stack
[--submenu_depth
];
1178 else if (EQ (XVECTOR (vector
)->contents
[i
], Qt
))
1180 prefix
= XVECTOR (vector
)->contents
[i
+ MENU_ITEMS_PANE_PREFIX
];
1181 i
+= MENU_ITEMS_PANE_LENGTH
;
1185 entry
= XVECTOR (vector
)->contents
[i
+ MENU_ITEMS_ITEM_VALUE
];
1186 /* The EMACS_INT cast avoids a warning. There's no problem
1187 as long as pointers have enough bits to hold small integers. */
1188 if ((int) (EMACS_INT
) client_data
== i
)
1191 struct input_event buf
;
1194 XSETFRAME (frame
, f
);
1195 buf
.kind
= menu_bar_event
;
1196 buf
.frame_or_window
= Fcons (frame
, Fcons (Qmenu_bar
, Qnil
));
1197 kbd_buffer_store_event (&buf
);
1199 for (j
= 0; j
< submenu_depth
; j
++)
1200 if (!NILP (subprefix_stack
[j
]))
1202 buf
.kind
= menu_bar_event
;
1203 buf
.frame_or_window
= Fcons (frame
, subprefix_stack
[j
]);
1204 kbd_buffer_store_event (&buf
);
1209 buf
.kind
= menu_bar_event
;
1210 buf
.frame_or_window
= Fcons (frame
, prefix
);
1211 kbd_buffer_store_event (&buf
);
1214 buf
.kind
= menu_bar_event
;
1215 buf
.frame_or_window
= Fcons (frame
, entry
);
1216 kbd_buffer_store_event (&buf
);
1220 i
+= MENU_ITEMS_ITEM_LENGTH
;
1225 /* This callback is invoked when a dialog or menu is finished being
1226 used and has been unposted. */
1229 popup_deactivate_callback (widget
, id
, client_data
)
1232 XtPointer client_data
;
1234 popup_activated_flag
= 0;
1238 /* This recursively calls free_widget_value on the tree of widgets.
1239 It must free all data that was malloc'ed for these widget_values.
1240 In Emacs, many slots are pointers into the data of Lisp_Strings, and
1241 must be left alone. */
1244 free_menubar_widget_value_tree (wv
)
1249 wv
->name
= wv
->value
= wv
->key
= (char *) 0xDEADBEEF;
1251 if (wv
->contents
&& (wv
->contents
!= (widget_value
*)1))
1253 free_menubar_widget_value_tree (wv
->contents
);
1254 wv
->contents
= (widget_value
*) 0xDEADBEEF;
1258 free_menubar_widget_value_tree (wv
->next
);
1259 wv
->next
= (widget_value
*) 0xDEADBEEF;
1262 free_widget_value (wv
);
1266 /* Return a tree of widget_value structures for a menu bar item
1267 whose event type is ITEM_KEY (with string ITEM_NAME)
1268 and whose contents come from the list of keymaps MAPS. */
1270 static widget_value
*
1271 single_submenu (item_key
, item_name
, maps
)
1272 Lisp_Object item_key
, item_name
, maps
;
1274 widget_value
*wv
, *prev_wv
, *save_wv
, *first_wv
;
1276 int submenu_depth
= 0;
1279 Lisp_Object
*mapvec
;
1280 widget_value
**submenu_stack
;
1282 int previous_items
= menu_items_used
;
1284 length
= Flength (maps
);
1285 len
= XINT (length
);
1287 /* Convert the list MAPS into a vector MAPVEC. */
1288 mapvec
= (Lisp_Object
*) alloca (len
* sizeof (Lisp_Object
));
1289 for (i
= 0; i
< len
; i
++)
1291 mapvec
[i
] = Fcar (maps
);
1295 menu_items_n_panes
= 0;
1297 /* Loop over the given keymaps, making a pane for each map.
1298 But don't make a pane that is empty--ignore that map instead. */
1299 for (i
= 0; i
< len
; i
++)
1300 single_keymap_panes (mapvec
[i
], item_name
, item_key
, 0);
1302 /* Create a tree of widget_value objects
1303 representing the panes and their items. */
1306 = (widget_value
**) alloca (menu_items_used
* sizeof (widget_value
*));
1307 wv
= malloc_widget_value ();
1314 /* Loop over all panes and items made during this call
1315 and construct a tree of widget_value objects.
1316 Ignore the panes and items made by previous calls to
1317 single_submenu, even though those are also in menu_items. */
1319 while (i
< menu_items_used
)
1321 if (EQ (XVECTOR (menu_items
)->contents
[i
], Qnil
))
1323 submenu_stack
[submenu_depth
++] = save_wv
;
1328 else if (EQ (XVECTOR (menu_items
)->contents
[i
], Qlambda
))
1331 save_wv
= submenu_stack
[--submenu_depth
];
1334 else if (EQ (XVECTOR (menu_items
)->contents
[i
], Qt
)
1335 && submenu_depth
!= 0)
1336 i
+= MENU_ITEMS_PANE_LENGTH
;
1337 /* Ignore a nil in the item list.
1338 It's meaningful only for dialog boxes. */
1339 else if (EQ (XVECTOR (menu_items
)->contents
[i
], Qquote
))
1341 else if (EQ (XVECTOR (menu_items
)->contents
[i
], Qt
))
1343 /* Create a new pane. */
1344 Lisp_Object pane_name
, prefix
;
1346 pane_name
= XVECTOR (menu_items
)->contents
[i
+ MENU_ITEMS_PANE_NAME
];
1347 prefix
= XVECTOR (menu_items
)->contents
[i
+ MENU_ITEMS_PANE_PREFIX
];
1348 pane_string
= (NILP (pane_name
)
1349 ? "" : (char *) XSTRING (pane_name
)->data
);
1350 /* If there is just one top-level pane, put all its items directly
1351 under the top-level menu. */
1352 if (menu_items_n_panes
== 1)
1355 /* If the pane has a meaningful name,
1356 make the pane a top-level menu item
1357 with its items as a submenu beneath it. */
1358 if (strcmp (pane_string
, ""))
1360 wv
= malloc_widget_value ();
1364 first_wv
->contents
= wv
;
1365 wv
->name
= pane_string
;
1373 i
+= MENU_ITEMS_PANE_LENGTH
;
1377 /* Create a new item within current pane. */
1378 Lisp_Object item_name
, enable
, descrip
, def
;
1379 item_name
= XVECTOR (menu_items
)->contents
[i
+ MENU_ITEMS_ITEM_NAME
];
1380 enable
= XVECTOR (menu_items
)->contents
[i
+ MENU_ITEMS_ITEM_ENABLE
];
1382 = XVECTOR (menu_items
)->contents
[i
+ MENU_ITEMS_ITEM_EQUIV_KEY
];
1383 def
= XVECTOR (menu_items
)->contents
[i
+ MENU_ITEMS_ITEM_DEFINITION
];
1385 wv
= malloc_widget_value ();
1389 save_wv
->contents
= wv
;
1390 wv
->name
= (char *) XSTRING (item_name
)->data
;
1391 if (!NILP (descrip
))
1392 wv
->key
= (char *) XSTRING (descrip
)->data
;
1394 /* The EMACS_INT cast avoids a warning. There's no problem
1395 as long as pointers have enough bits to hold small integers. */
1396 wv
->call_data
= (!NILP (def
) ? (void *) (EMACS_INT
) i
: 0);
1397 wv
->enabled
= !NILP (enable
);
1400 i
+= MENU_ITEMS_ITEM_LENGTH
;
1407 extern void EmacsFrameSetCharSize ();
1409 /* Recompute the menu bar of frame F. */
1412 update_frame_menubar (f
)
1415 struct x_display
*x
= f
->display
.x
;
1417 int menubar_changed
;
1419 Dimension shell_height
;
1421 /* We assume the menubar contents has changed if the global flag is set,
1422 or if the current buffer has changed, or if the menubar has never
1423 been updated before.
1425 menubar_changed
= (x
->menubar_widget
1426 && !XtIsManaged (x
->menubar_widget
));
1428 if (! (menubar_changed
))
1432 /* Save the size of the frame because the pane widget doesn't accept to
1433 resize itself. So force it. */
1437 /* Do the voodoo which means "I'm changing lots of things, don't try to
1438 refigure sizes until I'm done." */
1439 lw_refigure_widget (x
->column_widget
, False
);
1441 /* the order in which children are managed is the top to
1442 bottom order in which they are displayed in the paned window.
1443 First, remove the text-area widget.
1445 XtUnmanageChild (x
->edit_widget
);
1447 /* remove the menubar that is there now, and put up the menubar that
1450 if (menubar_changed
)
1452 XtManageChild (x
->menubar_widget
);
1453 XtMapWidget (x
->menubar_widget
);
1454 XtVaSetValues (x
->menubar_widget
, XtNmappedWhenManaged
, 1, 0);
1457 /* Re-manage the text-area widget, and then thrash the sizes. */
1458 XtManageChild (x
->edit_widget
);
1459 lw_refigure_widget (x
->column_widget
, True
);
1461 /* Force the pane widget to resize itself with the right values. */
1462 EmacsFrameSetCharSize (x
->edit_widget
, columns
, rows
);
1468 set_frame_menubar (f
, first_time
)
1472 Widget menubar_widget
= f
->display
.x
->menubar_widget
;
1473 Lisp_Object tail
, items
, frame
;
1474 widget_value
*wv
, *first_wv
, *prev_wv
= 0;
1479 count
= inhibit_garbage_collection ();
1481 id
= frame_vector_add_frame (f
);
1483 wv
= malloc_widget_value ();
1484 wv
->name
= "menubar";
1488 items
= FRAME_MENU_BAR_ITEMS (f
);
1489 menu_items
= f
->menu_bar_vector
;
1490 menu_items_allocated
= XVECTOR (menu_items
)->size
;
1493 for (i
= 0; i
< XVECTOR (items
)->size
; i
+= 3)
1495 Lisp_Object key
, string
, maps
;
1497 key
= XVECTOR (items
)->contents
[i
];
1498 string
= XVECTOR (items
)->contents
[i
+ 1];
1499 maps
= XVECTOR (items
)->contents
[i
+ 2];
1503 wv
= single_submenu (key
, string
, maps
);
1507 first_wv
->contents
= wv
;
1508 /* Don't set wv->name here; GC during the loop might relocate it. */
1513 /* Now GC cannot happen during the lifetime of the widget_value,
1514 so it's safe to store data from a Lisp_String. */
1515 wv
= first_wv
->contents
;
1516 for (i
= 0; i
< XVECTOR (items
)->size
; i
+= 3)
1519 string
= XVECTOR (items
)->contents
[i
+ 1];
1522 wv
->name
= (char *) XSTRING (string
)->data
;
1526 finish_menu_items ();
1528 f
->menu_bar_vector
= menu_items
;
1529 f
->menu_bar_items_used
= menu_items_used
;
1532 unbind_to (count
, Qnil
);
1538 /* Disable resizing (done for Motif!) */
1539 lw_allow_resizing (f
->display
.x
->widget
, False
);
1541 /* The third arg is DEEP_P, which says to consider the entire
1542 menu trees we supply, rather than just the menu bar item names. */
1543 lw_modify_all_widgets (id
, first_wv
, 1);
1545 /* Re-enable the edit widget to resize. */
1546 lw_allow_resizing (f
->display
.x
->widget
, True
);
1550 menubar_widget
= lw_create_widget ("menubar", "menubar",
1552 f
->display
.x
->column_widget
,
1554 popup_activate_callback
,
1555 menubar_selection_callback
,
1556 popup_deactivate_callback
);
1557 f
->display
.x
->menubar_widget
= menubar_widget
;
1562 = (f
->display
.x
->menubar_widget
1563 ? (f
->display
.x
->menubar_widget
->core
.height
1564 + f
->display
.x
->menubar_widget
->core
.border_width
)
1567 if (FRAME_EXTERNAL_MENU_BAR (f
))
1570 XtVaGetValues (f
->display
.x
->column_widget
,
1571 XtNinternalBorderWidth
, &ibw
, NULL
);
1572 menubar_size
+= ibw
;
1575 f
->display
.x
->menubar_height
= menubar_size
;
1578 free_menubar_widget_value_tree (first_wv
);
1580 /* Don't update the menubar the first time it is created via x_window. */
1582 update_frame_menubar (f
);
1587 /* Called from Fx_create_frame to create the inital menubar of a frame
1588 before it is mapped, so that the window is mapped with the menubar already
1589 there instead of us tacking it on later and thrashing the window after it
1593 initialize_frame_menubar (f
)
1596 /* This function is called before the first chance to redisplay
1597 the frame. It has to be, so the frame will have the right size. */
1598 FRAME_MENU_BAR_ITEMS (f
) = menu_bar_items (FRAME_MENU_BAR_ITEMS (f
));
1599 set_frame_menubar (f
, 1);
1602 /* Get rid of the menu bar of frame F, and free its storage.
1603 This is used when deleting a frame, and when turning off the menu bar. */
1606 free_frame_menubar (f
)
1609 Widget menubar_widget
;
1612 menubar_widget
= f
->display
.x
->menubar_widget
;
1616 id
= frame_vector_add_frame (f
);
1618 lw_destroy_all_widgets (id
);
1619 XVECTOR (frame_vector
)->contents
[id
] = Qnil
;
1624 #endif /* USE_X_TOOLKIT */
1626 /* xmenu_show actually displays a menu using the panes and items in menu_items
1627 and returns the value selected from it.
1628 There are two versions of xmenu_show, one for Xt and one for Xlib.
1629 Both assume input is blocked by the caller. */
1631 /* F is the frame the menu is for.
1632 X and Y are the frame-relative specified position,
1633 relative to the inside upper left corner of the frame F.
1634 FOR_CLICK if this menu was invoked for a mouse click.
1635 KEYMAPS is 1 if this menu was specified with keymaps;
1636 in that case, we return a list containing the chosen item's value
1637 and perhaps also the pane's prefix.
1638 TITLE is the specified menu title.
1639 ERROR is a place to store an error message string in case of failure.
1640 (We return nil on failure, but the value doesn't actually matter.) */
1642 #ifdef USE_X_TOOLKIT
1644 /* We need a unique id for each widget handled by the Lucid Widget
1645 library. This includes the frame main windows, popup menu and
1647 LWLIB_ID widget_id_tick
;
1650 static Lisp_Object
*volatile menu_item_selection
;
1652 static Lisp_Object
*menu_item_selection
;
1656 popup_selection_callback (widget
, id
, client_data
)
1659 XtPointer client_data
;
1661 menu_item_selection
= (Lisp_Object
*) client_data
;
1665 xmenu_show (f
, x
, y
, for_click
, keymaps
, title
, error
)
1679 widget_value
*wv
, *save_wv
= 0, *first_wv
= 0, *prev_wv
= 0;
1680 widget_value
**submenu_stack
1681 = (widget_value
**) alloca (menu_items_used
* sizeof (widget_value
*));
1682 Lisp_Object
*subprefix_stack
1683 = (Lisp_Object
*) alloca (menu_items_used
* sizeof (Lisp_Object
));
1684 int submenu_depth
= 0;
1686 Position root_x
, root_y
;
1689 int next_release_must_exit
= 0;
1693 if (menu_items_used
<= MENU_ITEMS_PANE_LENGTH
)
1695 *error
= "Empty menu";
1699 /* Create a tree of widget_value objects
1700 representing the panes and their items. */
1701 wv
= malloc_widget_value ();
1708 /* Loop over all panes and items, filling in the tree. */
1710 while (i
< menu_items_used
)
1712 if (EQ (XVECTOR (menu_items
)->contents
[i
], Qnil
))
1714 submenu_stack
[submenu_depth
++] = save_wv
;
1720 else if (EQ (XVECTOR (menu_items
)->contents
[i
], Qlambda
))
1723 save_wv
= submenu_stack
[--submenu_depth
];
1727 else if (EQ (XVECTOR (menu_items
)->contents
[i
], Qt
)
1728 && submenu_depth
!= 0)
1729 i
+= MENU_ITEMS_PANE_LENGTH
;
1730 /* Ignore a nil in the item list.
1731 It's meaningful only for dialog boxes. */
1732 else if (EQ (XVECTOR (menu_items
)->contents
[i
], Qquote
))
1734 else if (EQ (XVECTOR (menu_items
)->contents
[i
], Qt
))
1736 /* Create a new pane. */
1737 Lisp_Object pane_name
, prefix
;
1739 pane_name
= XVECTOR (menu_items
)->contents
[i
+ MENU_ITEMS_PANE_NAME
];
1740 prefix
= XVECTOR (menu_items
)->contents
[i
+ MENU_ITEMS_PANE_PREFIX
];
1741 pane_string
= (NILP (pane_name
)
1742 ? "" : (char *) XSTRING (pane_name
)->data
);
1743 /* If there is just one top-level pane, put all its items directly
1744 under the top-level menu. */
1745 if (menu_items_n_panes
== 1)
1748 /* If the pane has a meaningful name,
1749 make the pane a top-level menu item
1750 with its items as a submenu beneath it. */
1751 if (!keymaps
&& strcmp (pane_string
, ""))
1753 wv
= malloc_widget_value ();
1757 first_wv
->contents
= wv
;
1758 wv
->name
= pane_string
;
1759 if (keymaps
&& !NILP (prefix
))
1766 else if (first_pane
)
1772 i
+= MENU_ITEMS_PANE_LENGTH
;
1776 /* Create a new item within current pane. */
1777 Lisp_Object item_name
, enable
, descrip
, def
;
1778 item_name
= XVECTOR (menu_items
)->contents
[i
+ MENU_ITEMS_ITEM_NAME
];
1779 enable
= XVECTOR (menu_items
)->contents
[i
+ MENU_ITEMS_ITEM_ENABLE
];
1781 = XVECTOR (menu_items
)->contents
[i
+ MENU_ITEMS_ITEM_EQUIV_KEY
];
1782 def
= XVECTOR (menu_items
)->contents
[i
+ MENU_ITEMS_ITEM_DEFINITION
];
1784 wv
= malloc_widget_value ();
1788 save_wv
->contents
= wv
;
1789 wv
->name
= (char *) XSTRING (item_name
)->data
;
1790 if (!NILP (descrip
))
1791 wv
->key
= (char *) XSTRING (descrip
)->data
;
1793 /* If this item has a null value,
1794 make the call_data null so that it won't display a box
1795 when the mouse is on it. */
1797 = (!NILP (def
) ? (void *) &XVECTOR (menu_items
)->contents
[i
] : 0);
1798 wv
->enabled
= !NILP (enable
);
1801 i
+= MENU_ITEMS_ITEM_LENGTH
;
1805 /* Deal with the title, if it is non-nil. */
1808 widget_value
*wv_title
= malloc_widget_value ();
1809 widget_value
*wv_sep1
= malloc_widget_value ();
1810 widget_value
*wv_sep2
= malloc_widget_value ();
1812 wv_sep2
->name
= "--";
1813 wv_sep2
->next
= first_wv
->contents
;
1815 wv_sep1
->name
= "--";
1816 wv_sep1
->next
= wv_sep2
;
1818 wv_title
->name
= (char *) XSTRING (title
)->data
;
1819 wv_title
->enabled
= True
;
1820 wv_title
->next
= wv_sep1
;
1821 first_wv
->contents
= wv_title
;
1824 /* Actually create the menu. */
1825 menu_id
= ++widget_id_tick
;
1826 menu
= lw_create_widget ("popup", first_wv
->name
, menu_id
, first_wv
,
1827 f
->display
.x
->widget
, 1, 0,
1828 popup_selection_callback
,
1829 popup_deactivate_callback
);
1831 /* Don't allow any geometry request from the user. */
1832 XtSetArg (av
[ac
], XtNgeometry
, 0); ac
++;
1833 XtSetValues (menu
, av
, ac
);
1835 /* Free the widget_value objects we used to specify the contents. */
1836 free_menubar_widget_value_tree (first_wv
);
1838 /* No selection has been chosen yet. */
1839 menu_item_selection
= 0;
1841 /* Display the menu. */
1842 lw_popup_menu (menu
);
1843 popup_activated_flag
= 1;
1845 /* Process events that apply to the menu. */
1846 popup_get_selection ((XEvent
*) 0, FRAME_X_DISPLAY_INFO (f
));
1849 /* fp turned off the following statement and wrote a comment
1850 that it is unnecessary--that the menu has already disappeared.
1851 I observer that is not so. -- rms. */
1852 /* Make sure the menu disappears. */
1853 lw_destroy_all_widgets (menu_id
);
1856 /* Find the selected item, and its pane, to return
1857 the proper value. */
1858 if (menu_item_selection
!= 0)
1860 Lisp_Object prefix
, entry
;
1864 while (i
< menu_items_used
)
1866 if (EQ (XVECTOR (menu_items
)->contents
[i
], Qnil
))
1868 subprefix_stack
[submenu_depth
++] = prefix
;
1872 else if (EQ (XVECTOR (menu_items
)->contents
[i
], Qlambda
))
1874 prefix
= subprefix_stack
[--submenu_depth
];
1877 else if (EQ (XVECTOR (menu_items
)->contents
[i
], Qt
))
1880 = XVECTOR (menu_items
)->contents
[i
+ MENU_ITEMS_PANE_PREFIX
];
1881 i
+= MENU_ITEMS_PANE_LENGTH
;
1886 = XVECTOR (menu_items
)->contents
[i
+ MENU_ITEMS_ITEM_VALUE
];
1887 if (menu_item_selection
== &XVECTOR (menu_items
)->contents
[i
])
1893 entry
= Fcons (entry
, Qnil
);
1895 entry
= Fcons (prefix
, entry
);
1896 for (j
= submenu_depth
- 1; j
>= 0; j
--)
1897 if (!NILP (subprefix_stack
[j
]))
1898 entry
= Fcons (subprefix_stack
[j
], entry
);
1902 i
+= MENU_ITEMS_ITEM_LENGTH
;
1911 dialog_selection_callback (widget
, id
, client_data
)
1914 XtPointer client_data
;
1916 /* The EMACS_INT cast avoids a warning. There's no problem
1917 as long as pointers have enough bits to hold small integers. */
1918 if ((int) (EMACS_INT
) client_data
!= -1)
1919 menu_item_selection
= (Lisp_Object
*) client_data
;
1921 lw_destroy_all_widgets (id
);
1923 popup_activated_flag
= 0;
1926 static char * button_names
[] = {
1927 "button1", "button2", "button3", "button4", "button5",
1928 "button6", "button7", "button8", "button9", "button10" };
1931 xdialog_show (f
, keymaps
, title
, error
)
1937 int i
, nb_buttons
=0;
1940 char dialog_name
[6];
1942 widget_value
*wv
, *save_wv
= 0, *first_wv
= 0, *prev_wv
= 0;
1944 /* Number of elements seen so far, before boundary. */
1946 /* 1 means we've seen the boundary between left-hand elts and right-hand. */
1947 int boundary_seen
= 0;
1951 if (menu_items_n_panes
> 1)
1953 *error
= "Multiple panes in dialog box";
1957 /* Create a tree of widget_value objects
1958 representing the text label and buttons. */
1960 Lisp_Object pane_name
, prefix
;
1962 pane_name
= XVECTOR (menu_items
)->contents
[MENU_ITEMS_PANE_NAME
];
1963 prefix
= XVECTOR (menu_items
)->contents
[MENU_ITEMS_PANE_PREFIX
];
1964 pane_string
= (NILP (pane_name
)
1965 ? "" : (char *) XSTRING (pane_name
)->data
);
1966 prev_wv
= malloc_widget_value ();
1967 prev_wv
->value
= pane_string
;
1968 if (keymaps
&& !NILP (prefix
))
1970 prev_wv
->enabled
= 1;
1971 prev_wv
->name
= "message";
1974 /* Loop over all panes and items, filling in the tree. */
1975 i
= MENU_ITEMS_PANE_LENGTH
;
1976 while (i
< menu_items_used
)
1979 /* Create a new item within current pane. */
1980 Lisp_Object item_name
, enable
, descrip
;
1981 item_name
= XVECTOR (menu_items
)->contents
[i
+ MENU_ITEMS_ITEM_NAME
];
1982 enable
= XVECTOR (menu_items
)->contents
[i
+ MENU_ITEMS_ITEM_ENABLE
];
1984 = XVECTOR (menu_items
)->contents
[i
+ MENU_ITEMS_ITEM_EQUIV_KEY
];
1986 if (NILP (item_name
))
1988 free_menubar_widget_value_tree (first_wv
);
1989 *error
= "Submenu in dialog items";
1992 if (EQ (item_name
, Qquote
))
1994 /* This is the boundary between left-side elts
1995 and right-side elts. Stop incrementing right_count. */
2000 if (nb_buttons
>= 10)
2002 free_menubar_widget_value_tree (first_wv
);
2003 *error
= "Too many dialog items";
2007 wv
= malloc_widget_value ();
2009 wv
->name
= (char *) button_names
[nb_buttons
];
2010 if (!NILP (descrip
))
2011 wv
->key
= (char *) XSTRING (descrip
)->data
;
2012 wv
->value
= (char *) XSTRING (item_name
)->data
;
2013 wv
->call_data
= (void *) &XVECTOR (menu_items
)->contents
[i
];
2014 wv
->enabled
= !NILP (enable
);
2017 if (! boundary_seen
)
2021 i
+= MENU_ITEMS_ITEM_LENGTH
;
2024 /* If the boundary was not specified,
2025 by default put half on the left and half on the right. */
2026 if (! boundary_seen
)
2027 left_count
= nb_buttons
- nb_buttons
/ 2;
2029 wv
= malloc_widget_value ();
2030 wv
->name
= dialog_name
;
2032 /* Dialog boxes use a really stupid name encoding
2033 which specifies how many buttons to use
2034 and how many buttons are on the right.
2035 The Q means something also. */
2036 dialog_name
[0] = 'Q';
2037 dialog_name
[1] = '0' + nb_buttons
;
2038 dialog_name
[2] = 'B';
2039 dialog_name
[3] = 'R';
2040 /* Number of buttons to put on the right. */
2041 dialog_name
[4] = '0' + nb_buttons
- left_count
;
2043 wv
->contents
= first_wv
;
2047 /* Actually create the dialog. */
2048 dialog_id
= ++widget_id_tick
;
2049 menu
= lw_create_widget (first_wv
->name
, "dialog", dialog_id
, first_wv
,
2050 f
->display
.x
->widget
, 1, 0,
2051 dialog_selection_callback
, 0);
2052 lw_modify_all_widgets (dialog_id
, first_wv
->contents
, True
);
2053 /* Free the widget_value objects we used to specify the contents. */
2054 free_menubar_widget_value_tree (first_wv
);
2056 /* No selection has been chosen yet. */
2057 menu_item_selection
= 0;
2059 /* Display the menu. */
2060 lw_pop_up_all_widgets (dialog_id
);
2061 popup_activated_flag
= 1;
2063 /* Process events that apply to the menu. */
2064 popup_get_selection ((XEvent
*) 0, FRAME_X_DISPLAY_INFO (f
));
2066 /* Find the selected item, and its pane, to return
2067 the proper value. */
2068 if (menu_item_selection
!= 0)
2074 while (i
< menu_items_used
)
2078 if (EQ (XVECTOR (menu_items
)->contents
[i
], Qt
))
2081 = XVECTOR (menu_items
)->contents
[i
+ MENU_ITEMS_PANE_PREFIX
];
2082 i
+= MENU_ITEMS_PANE_LENGTH
;
2087 = XVECTOR (menu_items
)->contents
[i
+ MENU_ITEMS_ITEM_VALUE
];
2088 if (menu_item_selection
== &XVECTOR (menu_items
)->contents
[i
])
2092 entry
= Fcons (entry
, Qnil
);
2094 entry
= Fcons (prefix
, entry
);
2098 i
+= MENU_ITEMS_ITEM_LENGTH
;
2105 #else /* not USE_X_TOOLKIT */
2108 xmenu_show (f
, x
, y
, for_click
, keymaps
, title
, error
)
2118 int pane
, selidx
, lpane
, status
;
2119 Lisp_Object entry
, pane_prefix
;
2121 int ulx
, uly
, width
, height
;
2122 int dispwidth
, dispheight
;
2126 unsigned int dummy_uint
;
2129 if (menu_items_n_panes
== 0)
2132 if (menu_items_used
<= MENU_ITEMS_PANE_LENGTH
)
2134 *error
= "Empty menu";
2138 /* Figure out which root window F is on. */
2139 XGetGeometry (FRAME_X_DISPLAY (f
), FRAME_X_WINDOW (f
), &root
,
2140 &dummy_int
, &dummy_int
, &dummy_uint
, &dummy_uint
,
2141 &dummy_uint
, &dummy_uint
);
2143 /* Make the menu on that window. */
2144 menu
= XMenuCreate (FRAME_X_DISPLAY (f
), root
, "emacs");
2147 *error
= "Can't create menu";
2151 #ifdef HAVE_X_WINDOWS
2152 /* Adjust coordinates to relative to the outer (window manager) window. */
2155 int win_x
= 0, win_y
= 0;
2157 /* Find the position of the outside upper-left corner of
2158 the inner window, with respect to the outer window. */
2159 if (f
->display
.x
->parent_desc
!= FRAME_X_DISPLAY_INFO (f
)->root_window
)
2162 XTranslateCoordinates (FRAME_X_DISPLAY (f
),
2164 /* From-window, to-window. */
2165 f
->display
.x
->window_desc
,
2166 f
->display
.x
->parent_desc
,
2168 /* From-position, to-position. */
2169 0, 0, &win_x
, &win_y
,
2171 /* Child of window. */
2178 #endif /* HAVE_X_WINDOWS */
2180 /* Adjust coordinates to be root-window-relative. */
2181 x
+= f
->display
.x
->left_pos
;
2182 y
+= f
->display
.x
->top_pos
;
2184 /* Create all the necessary panes and their items. */
2186 while (i
< menu_items_used
)
2188 if (EQ (XVECTOR (menu_items
)->contents
[i
], Qt
))
2190 /* Create a new pane. */
2191 Lisp_Object pane_name
, prefix
;
2194 pane_name
= XVECTOR (menu_items
)->contents
[i
+ MENU_ITEMS_PANE_NAME
];
2195 prefix
= XVECTOR (menu_items
)->contents
[i
+ MENU_ITEMS_PANE_PREFIX
];
2196 pane_string
= (NILP (pane_name
)
2197 ? "" : (char *) XSTRING (pane_name
)->data
);
2198 if (keymaps
&& !NILP (prefix
))
2201 lpane
= XMenuAddPane (FRAME_X_DISPLAY (f
), menu
, pane_string
, TRUE
);
2202 if (lpane
== XM_FAILURE
)
2204 XMenuDestroy (FRAME_X_DISPLAY (f
), menu
);
2205 *error
= "Can't create pane";
2208 i
+= MENU_ITEMS_PANE_LENGTH
;
2210 /* Find the width of the widest item in this pane. */
2213 while (j
< menu_items_used
)
2216 item
= XVECTOR (menu_items
)->contents
[j
];
2224 width
= XSTRING (item
)->size
;
2225 if (width
> maxwidth
)
2228 j
+= MENU_ITEMS_ITEM_LENGTH
;
2231 /* Ignore a nil in the item list.
2232 It's meaningful only for dialog boxes. */
2233 else if (EQ (XVECTOR (menu_items
)->contents
[i
], Qquote
))
2237 /* Create a new item within current pane. */
2238 Lisp_Object item_name
, enable
, descrip
;
2239 unsigned char *item_data
;
2241 item_name
= XVECTOR (menu_items
)->contents
[i
+ MENU_ITEMS_ITEM_NAME
];
2242 enable
= XVECTOR (menu_items
)->contents
[i
+ MENU_ITEMS_ITEM_ENABLE
];
2244 = XVECTOR (menu_items
)->contents
[i
+ MENU_ITEMS_ITEM_EQUIV_KEY
];
2245 if (!NILP (descrip
))
2247 int gap
= maxwidth
- XSTRING (item_name
)->size
;
2250 spacer
= Fmake_string (make_number (gap
), make_number (' '));
2251 item_name
= concat2 (item_name
, spacer
);
2252 item_name
= concat2 (item_name
, descrip
);
2253 item_data
= XSTRING (item_name
)->data
;
2255 /* if alloca is fast, use that to make the space,
2256 to reduce gc needs. */
2258 = (unsigned char *) alloca (maxwidth
2259 + XSTRING (descrip
)->size
+ 1);
2260 bcopy (XSTRING (item_name
)->data
, item_data
,
2261 XSTRING (item_name
)->size
);
2262 for (j
= XSTRING (item_name
)->size
; j
< maxwidth
; j
++)
2264 bcopy (XSTRING (descrip
)->data
, item_data
+ j
,
2265 XSTRING (descrip
)->size
);
2266 item_data
[j
+ XSTRING (descrip
)->size
] = 0;
2270 item_data
= XSTRING (item_name
)->data
;
2272 if (XMenuAddSelection (FRAME_X_DISPLAY (f
),
2273 menu
, lpane
, 0, item_data
,
2277 XMenuDestroy (FRAME_X_DISPLAY (f
), menu
);
2278 *error
= "Can't add selection to menu";
2281 i
+= MENU_ITEMS_ITEM_LENGTH
;
2285 /* All set and ready to fly. */
2286 XMenuRecompute (FRAME_X_DISPLAY (f
), menu
);
2287 dispwidth
= DisplayWidth (FRAME_X_DISPLAY (f
),
2288 XScreenNumberOfScreen (FRAME_X_SCREEN (f
)));
2289 dispheight
= DisplayHeight (FRAME_X_DISPLAY (f
),
2290 XScreenNumberOfScreen (FRAME_X_SCREEN (f
)));
2291 x
= min (x
, dispwidth
);
2292 y
= min (y
, dispheight
);
2295 XMenuLocate (FRAME_X_DISPLAY (f
), menu
, 0, 0, x
, y
,
2296 &ulx
, &uly
, &width
, &height
);
2297 if (ulx
+width
> dispwidth
)
2299 x
-= (ulx
+ width
) - dispwidth
;
2300 ulx
= dispwidth
- width
;
2302 if (uly
+height
> dispheight
)
2304 y
-= (uly
+ height
) - dispheight
;
2305 uly
= dispheight
- height
;
2307 if (ulx
< 0) x
-= ulx
;
2308 if (uly
< 0) y
-= uly
;
2310 XMenuSetAEQ (menu
, TRUE
);
2311 XMenuSetFreeze (menu
, TRUE
);
2314 status
= XMenuActivate (FRAME_X_DISPLAY (f
), menu
, &pane
, &selidx
,
2315 x
, y
, ButtonReleaseMask
, &datap
);
2318 /* Assume the mouse has moved out of the X window.
2319 If it has actually moved in, we will get an EnterNotify. */
2320 x_mouse_leave (FRAME_X_DISPLAY_INFO (f
));
2326 fprintf (stderr
, "pane= %d line = %d\n", panes
, selidx
);
2329 /* Find the item number SELIDX in pane number PANE. */
2331 while (i
< menu_items_used
)
2333 if (EQ (XVECTOR (menu_items
)->contents
[i
], Qt
))
2337 = XVECTOR (menu_items
)->contents
[i
+ MENU_ITEMS_PANE_PREFIX
];
2339 i
+= MENU_ITEMS_PANE_LENGTH
;
2348 = XVECTOR (menu_items
)->contents
[i
+ MENU_ITEMS_ITEM_VALUE
];
2351 entry
= Fcons (entry
, Qnil
);
2352 if (!NILP (pane_prefix
))
2353 entry
= Fcons (pane_prefix
, entry
);
2359 i
+= MENU_ITEMS_ITEM_LENGTH
;
2365 *error
= "Can't activate menu";
2371 XMenuDestroy (FRAME_X_DISPLAY (f
), menu
);
2373 #ifdef HAVE_X_WINDOWS
2374 /* State that no mouse buttons are now held.
2375 (The oldXMenu code doesn't track this info for us.)
2376 That is not necessarily true, but the fiction leads to reasonable
2377 results, and it is a pain to ask which are actually held now. */
2378 FRAME_X_DISPLAY_INFO (f
)->grabbed
= 0;
2384 #endif /* not USE_X_TOOLKIT */
2388 staticpro (&menu_items
);
2391 #ifdef USE_X_TOOLKIT
2392 widget_id_tick
= (1<<16);
2395 staticpro (&frame_vector
);
2396 frame_vector
= Fmake_vector (make_number (10), Qnil
);
2398 defsubr (&Sx_popup_menu
);
2399 defsubr (&Sx_popup_dialog
);