Commit | Line | Data |
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dcfdbac7 | 1 | /* X Communication module for terminals which understand the X protocol. |
b5b4d636 | 2 | Copyright (C) 1986, 1988, 1993, 1994 Free Software Foundation, Inc. |
dcfdbac7 JB |
3 | |
4 | This file is part of GNU Emacs. | |
5 | ||
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 | |
774910eb | 8 | the Free Software Foundation; either version 2, or (at your option) |
dcfdbac7 JB |
9 | any later version. |
10 | ||
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. | |
15 | ||
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. */ | |
19 | ||
20 | /* X pop-up deck-of-cards menu facility for gnuemacs. | |
21 | * | |
22 | * Written by Jon Arnold and Roman Budzianowski | |
23 | * Mods and rewrite by Robert Krawitz | |
24 | * | |
25 | */ | |
26 | ||
18686d47 RS |
27 | /* Modified by Fred Pierresteguy on December 93 |
28 | to make the popup menus and menubar use the Xt. */ | |
29 | ||
78589e07 RS |
30 | /* Rewritten for clarity and GC protection by rms in Feb 94. */ |
31 | ||
dcfdbac7 | 32 | #include <stdio.h> |
dcfdbac7 JB |
33 | |
34 | /* On 4.3 this loses if it comes after xterm.h. */ | |
35 | #include <signal.h> | |
18160b98 | 36 | #include <config.h> |
dcfdbac7 | 37 | #include "lisp.h" |
18686d47 | 38 | #include "termhooks.h" |
7708e9bd | 39 | #include "frame.h" |
dcfdbac7 | 40 | #include "window.h" |
031b0e31 | 41 | #include "keyboard.h" |
9ac0d9e0 | 42 | #include "blockinput.h" |
dcfdbac7 JB |
43 | |
44 | /* This may include sys/types.h, and that somehow loses | |
45 | if this is not done before the other system files. */ | |
46 | #include "xterm.h" | |
47 | ||
48 | /* Load sys/types.h if not already loaded. | |
49 | In some systems loading it twice is suicidal. */ | |
50 | #ifndef makedev | |
51 | #include <sys/types.h> | |
52 | #endif | |
53 | ||
54 | #include "dispextern.h" | |
55 | ||
56 | #ifdef HAVE_X11 | |
57 | #include "../oldXMenu/XMenu.h" | |
58 | #else | |
59 | #include <X/XMenu.h> | |
60 | #endif | |
61 | ||
18686d47 RS |
62 | #ifdef USE_X_TOOLKIT |
63 | #include <X11/Xlib.h> | |
64 | #include <X11/IntrinsicP.h> | |
65 | #include <X11/CoreP.h> | |
66 | #include <X11/StringDefs.h> | |
67 | #include <X11/Xaw/Paned.h> | |
68 | #include "../lwlib/lwlib.h" | |
69 | #include "../lwlib/xlwmenuP.h" | |
70 | #endif /* USE_X_TOOLKIT */ | |
71 | ||
dcfdbac7 JB |
72 | #define min(x,y) (((x) < (y)) ? (x) : (y)) |
73 | #define max(x,y) (((x) > (y)) ? (x) : (y)) | |
74 | ||
dcfdbac7 JB |
75 | #ifndef TRUE |
76 | #define TRUE 1 | |
77 | #define FALSE 0 | |
78589e07 | 78 | #endif /* no TRUE */ |
dcfdbac7 JB |
79 | |
80 | #ifdef HAVE_X11 | |
81 | extern Display *x_current_display; | |
82 | #else | |
83 | #define ButtonReleaseMask ButtonReleased | |
84 | #endif /* not HAVE_X11 */ | |
85 | ||
78589e07 RS |
86 | /* We need a unique id for each popup menu and dialog box. */ |
87 | static unsigned int popup_id_tick; | |
88 | ||
6904bdcd | 89 | extern Lisp_Object Qmenu_enable; |
18686d47 | 90 | extern Lisp_Object Qmenu_bar; |
78589e07 | 91 | |
18686d47 | 92 | #ifdef USE_X_TOOLKIT |
78589e07 RS |
93 | extern void process_expose_from_menu (); |
94 | extern XtAppContext Xt_app_con; | |
95 | ||
18686d47 | 96 | static int string_width (); |
18686d47 RS |
97 | #endif |
98 | ||
78589e07 RS |
99 | static Lisp_Object xmenu_show (); |
100 | static void keymap_panes (); | |
101 | static void single_keymap_panes (); | |
102 | static void list_of_panes (); | |
103 | static void list_of_items (); | |
104 | \f | |
105 | /* This holds a Lisp vector that holds the results of decoding | |
106 | the keymaps or alist-of-alists that specify a menu. | |
dcfdbac7 | 107 | |
78589e07 | 108 | It describes the panes and items within the panes. |
dcfdbac7 | 109 | |
78589e07 RS |
110 | Each pane is described by 3 elements in the vector: |
111 | t, the pane name, the pane's prefix key. | |
112 | Then follow the pane's items, with 4 elements per item: | |
113 | the item string, the enable flag, the item's value, | |
114 | and the equivalent keyboard key's description string. | |
dcfdbac7 | 115 | |
78589e07 RS |
116 | Using a Lisp vector to hold this information while we decode it |
117 | takes care of protecting all the data from GC. */ | |
dcfdbac7 | 118 | |
78589e07 RS |
119 | #define MENU_ITEMS_PANE_NAME 1 |
120 | #define MENU_ITEMS_PANE_PREFIX 2 | |
121 | #define MENU_ITEMS_PANE_LENGTH 3 | |
088831f6 | 122 | |
78589e07 RS |
123 | #define MENU_ITEMS_ITEM_NAME 0 |
124 | #define MENU_ITEMS_ITEM_ENABLE 1 | |
125 | #define MENU_ITEMS_ITEM_VALUE 2 | |
126 | #define MENU_ITEMS_ITEM_EQUIV_KEY 3 | |
127 | #define MENU_ITEMS_ITEM_LENGTH 4 | |
7da99777 | 128 | |
78589e07 | 129 | static Lisp_Object menu_items; |
18686d47 | 130 | |
78589e07 RS |
131 | /* Number of slots currently allocated in menu_items. */ |
132 | static int menu_items_allocated; | |
18686d47 | 133 | |
78589e07 RS |
134 | /* This is the index in menu_items of the first empty slot. */ |
135 | static int menu_items_used; | |
18686d47 | 136 | |
78589e07 RS |
137 | /* The number of panes currently recorded in menu_items. */ |
138 | static int menu_items_n_panes; | |
18686d47 | 139 | |
78589e07 RS |
140 | /* Initialize the menu_items structure if we haven't already done so. |
141 | Also mark it as currently empty. */ | |
142 | ||
143 | static void | |
144 | init_menu_items () | |
145 | { | |
146 | if (NILP (menu_items)) | |
147 | { | |
148 | menu_items_allocated = 60; | |
149 | menu_items = Fmake_vector (make_number (menu_items_allocated), Qnil); | |
18686d47 RS |
150 | } |
151 | ||
78589e07 RS |
152 | menu_items_used = 0; |
153 | menu_items_n_panes = 0; | |
154 | } | |
18686d47 | 155 | |
78589e07 RS |
156 | /* Call at the end of generating the data in menu_items. |
157 | This fills in the number of items in the last pane. */ | |
1658603c | 158 | |
78589e07 RS |
159 | static void |
160 | finish_menu_items () | |
161 | { | |
162 | } | |
1658603c | 163 | |
78589e07 RS |
164 | /* Call when finished using the data for the current menu |
165 | in menu_items. */ | |
1658603c | 166 | |
78589e07 RS |
167 | static void |
168 | discard_menu_items () | |
169 | { | |
170 | /* Free the structure if it is especially large. | |
171 | Otherwise, hold on to it, to save time. */ | |
172 | if (menu_items_allocated > 200) | |
173 | { | |
174 | menu_items = Qnil; | |
175 | menu_items_allocated = 0; | |
176 | } | |
177 | } | |
1658603c | 178 | |
78589e07 RS |
179 | /* Start a new menu pane in menu_items.. |
180 | NAME is the pane name. PREFIX_VEC is a prefix key for this pane. */ | |
1658603c | 181 | |
78589e07 RS |
182 | static void |
183 | push_menu_pane (name, prefix_vec) | |
184 | Lisp_Object name, prefix_vec; | |
185 | { | |
186 | if (menu_items_used + MENU_ITEMS_PANE_LENGTH > menu_items_allocated) | |
187 | { | |
188 | Lisp_Object old; | |
189 | int old_size = menu_items_allocated; | |
190 | old = menu_items; | |
191 | ||
192 | menu_items_allocated *= 2; | |
193 | menu_items = Fmake_vector (make_number (menu_items_allocated), Qnil); | |
194 | bcopy (XVECTOR (old)->contents, XVECTOR (menu_items)->contents, | |
195 | old_size * sizeof (Lisp_Object)); | |
196 | } | |
dcfdbac7 | 197 | |
78589e07 RS |
198 | menu_items_n_panes++; |
199 | XVECTOR (menu_items)->contents[menu_items_used++] = Qt; | |
200 | XVECTOR (menu_items)->contents[menu_items_used++] = name; | |
201 | XVECTOR (menu_items)->contents[menu_items_used++] = prefix_vec; | |
202 | } | |
dcfdbac7 | 203 | |
78589e07 RS |
204 | /* Push one menu item into the current pane. |
205 | NAME is the string to display. ENABLE if non-nil means | |
206 | this item can be selected. KEY is the key generated by | |
207 | choosing this item. EQUIV is the textual description | |
208 | of the keyboard equivalent for this item (or nil if none). */ | |
18686d47 | 209 | |
78589e07 RS |
210 | static void |
211 | push_menu_item (name, enable, key, equiv) | |
212 | Lisp_Object name, enable, key, equiv; | |
213 | { | |
214 | if (menu_items_used + MENU_ITEMS_ITEM_LENGTH > menu_items_allocated) | |
088831f6 | 215 | { |
78589e07 RS |
216 | Lisp_Object old; |
217 | int old_size = menu_items_allocated; | |
218 | old = menu_items; | |
219 | ||
220 | menu_items_allocated *= 2; | |
221 | menu_items = Fmake_vector (make_number (menu_items_allocated), Qnil); | |
222 | bcopy (XVECTOR (old)->contents, XVECTOR (menu_items)->contents, | |
223 | old_size * sizeof (Lisp_Object)); | |
224 | } | |
088831f6 | 225 | |
78589e07 RS |
226 | XVECTOR (menu_items)->contents[menu_items_used++] = name; |
227 | XVECTOR (menu_items)->contents[menu_items_used++] = enable; | |
228 | XVECTOR (menu_items)->contents[menu_items_used++] = key; | |
229 | XVECTOR (menu_items)->contents[menu_items_used++] = equiv; | |
230 | } | |
231 | \f | |
232 | /* Figure out the current keyboard equivalent of a menu item ITEM1. | |
233 | The item string for menu display should be ITEM_STRING. | |
234 | Store the equivalent keyboard key sequence's | |
235 | textual description into *DESCRIP_PTR. | |
236 | Also cache them in the item itself. | |
237 | Return the real definition to execute. */ | |
088831f6 | 238 | |
78589e07 RS |
239 | static Lisp_Object |
240 | menu_item_equiv_key (item_string, item1, descrip_ptr) | |
241 | Lisp_Object item_string; | |
242 | Lisp_Object item1; | |
243 | Lisp_Object *descrip_ptr; | |
244 | { | |
245 | /* This is the real definition--the function to run. */ | |
246 | Lisp_Object def; | |
247 | /* This is the sublist that records cached equiv key data | |
248 | so we can save time. */ | |
249 | Lisp_Object cachelist; | |
250 | /* These are the saved equivalent keyboard key sequence | |
251 | and its key-description. */ | |
252 | Lisp_Object savedkey, descrip; | |
253 | Lisp_Object def1; | |
254 | int changed = 0; | |
088831f6 | 255 | |
78589e07 RS |
256 | /* If a help string follows the item string, skip it. */ |
257 | if (CONSP (XCONS (item1)->cdr) | |
258 | && STRINGP (XCONS (XCONS (item1)->cdr)->car)) | |
259 | item1 = XCONS (item1)->cdr; | |
088831f6 | 260 | |
78589e07 | 261 | def = Fcdr (item1); |
088831f6 | 262 | |
78589e07 RS |
263 | /* Get out the saved equivalent-keyboard-key info. */ |
264 | cachelist = savedkey = descrip = Qnil; | |
265 | if (CONSP (def) && CONSP (XCONS (def)->car) | |
266 | && (NILP (XCONS (XCONS (def)->car)->car) | |
267 | || VECTORP (XCONS (XCONS (def)->car)->car))) | |
088831f6 | 268 | { |
78589e07 RS |
269 | cachelist = XCONS (def)->car; |
270 | def = XCONS (def)->cdr; | |
271 | savedkey = XCONS (cachelist)->car; | |
272 | descrip = XCONS (cachelist)->cdr; | |
088831f6 | 273 | } |
78589e07 RS |
274 | |
275 | /* Is it still valid? */ | |
276 | def1 = Qnil; | |
277 | if (!NILP (savedkey)) | |
278 | def1 = Fkey_binding (savedkey, Qnil); | |
279 | /* If not, update it. */ | |
280 | if (! EQ (def1, def) | |
281 | /* If something had no key binding before, don't recheck it-- | |
282 | doing that takes too much time and makes menus too slow. */ | |
283 | && !(!NILP (cachelist) && NILP (savedkey))) | |
088831f6 | 284 | { |
78589e07 RS |
285 | changed = 1; |
286 | descrip = Qnil; | |
287 | savedkey = Fwhere_is_internal (def, Qnil, Qt, Qnil); | |
288 | if (VECTORP (savedkey) | |
289 | && EQ (XVECTOR (savedkey)->contents[0], Qmenu_bar)) | |
290 | savedkey = Qnil; | |
291 | if (!NILP (savedkey)) | |
292 | { | |
293 | descrip = Fkey_description (savedkey); | |
294 | descrip = concat2 (make_string (" (", 3), descrip); | |
295 | descrip = concat2 (descrip, make_string (")", 1)); | |
296 | } | |
dcfdbac7 | 297 | } |
18686d47 | 298 | |
78589e07 RS |
299 | /* Cache the data we just got in a sublist of the menu binding. */ |
300 | if (NILP (cachelist)) | |
301 | XCONS (item1)->cdr = Fcons (Fcons (savedkey, descrip), def); | |
302 | else if (changed) | |
dcfdbac7 | 303 | { |
78589e07 RS |
304 | XCONS (cachelist)->car = savedkey; |
305 | XCONS (cachelist)->cdr = descrip; | |
dcfdbac7 | 306 | } |
18686d47 | 307 | |
78589e07 RS |
308 | *descrip_ptr = descrip; |
309 | return def; | |
18686d47 RS |
310 | } |
311 | ||
78589e07 RS |
312 | /* This is used as the handler when calling internal_condition_case_1. */ |
313 | ||
314 | static Lisp_Object | |
315 | menu_item_enabled_p_1 (arg) | |
316 | Lisp_Object arg; | |
18686d47 | 317 | { |
78589e07 | 318 | return Qnil; |
dcfdbac7 JB |
319 | } |
320 | ||
78589e07 RS |
321 | /* Return non-nil if the command DEF is enabled when used as a menu item. |
322 | This is based on looking for a menu-enable property. */ | |
323 | ||
324 | static Lisp_Object | |
325 | menu_item_enabled_p (def) | |
326 | Lisp_Object def; | |
18686d47 | 327 | { |
78589e07 | 328 | Lisp_Object enabled, tem; |
18686d47 | 329 | |
78589e07 RS |
330 | enabled = Qt; |
331 | if (XTYPE (def) == Lisp_Symbol) | |
332 | { | |
333 | /* No property, or nil, means enable. | |
334 | Otherwise, enable if value is not nil. */ | |
335 | tem = Fget (def, Qmenu_enable); | |
336 | if (!NILP (tem)) | |
337 | /* (condition-case nil (eval tem) | |
338 | (error nil)) */ | |
339 | enabled = internal_condition_case_1 (Feval, tem, Qerror, | |
340 | menu_item_enabled_p_1); | |
341 | } | |
342 | return enabled; | |
343 | } | |
344 | \f | |
345 | /* Look through KEYMAPS, a vector of keymaps that is NMAPS long, | |
346 | and generate menu panes for them in menu_items. */ | |
18686d47 | 347 | |
78589e07 RS |
348 | static void |
349 | keymap_panes (keymaps, nmaps) | |
350 | Lisp_Object *keymaps; | |
351 | int nmaps; | |
18686d47 | 352 | { |
78589e07 | 353 | int mapno; |
18686d47 | 354 | |
78589e07 | 355 | init_menu_items (); |
18686d47 | 356 | |
78589e07 RS |
357 | /* Loop over the given keymaps, making a pane for each map. |
358 | But don't make a pane that is empty--ignore that map instead. | |
359 | P is the number of panes we have made so far. */ | |
360 | for (mapno = 0; mapno < nmaps; mapno++) | |
361 | single_keymap_panes (keymaps[mapno], Qnil, Qnil); | |
362 | ||
363 | finish_menu_items (); | |
364 | } | |
365 | ||
366 | /* This is a recursive subroutine of keymap_panes. | |
367 | It handles one keymap, KEYMAP. | |
368 | The other arguments are passed along | |
369 | or point to local variables of the previous function. */ | |
370 | ||
371 | static void | |
372 | single_keymap_panes (keymap, pane_name, prefix) | |
373 | Lisp_Object keymap; | |
374 | Lisp_Object pane_name; | |
375 | Lisp_Object prefix; | |
376 | { | |
377 | Lisp_Object pending_maps; | |
378 | Lisp_Object tail, item, item1, item_string, table; | |
379 | struct gcpro gcpro1, gcpro2, gcpro3, gcpro4; | |
380 | ||
381 | pending_maps = Qnil; | |
382 | ||
383 | push_menu_pane (pane_name, prefix); | |
384 | ||
385 | for (tail = keymap; XTYPE (tail) == Lisp_Cons; tail = XCONS (tail)->cdr) | |
18686d47 | 386 | { |
78589e07 RS |
387 | /* Look at each key binding, and if it has a menu string, |
388 | make a menu item from it. */ | |
389 | item = XCONS (tail)->car; | |
390 | if (XTYPE (item) == Lisp_Cons) | |
18686d47 | 391 | { |
78589e07 RS |
392 | item1 = XCONS (item)->cdr; |
393 | if (XTYPE (item1) == Lisp_Cons) | |
394 | { | |
395 | item_string = XCONS (item1)->car; | |
396 | if (XTYPE (item_string) == Lisp_String) | |
397 | { | |
398 | /* This is the real definition--the function to run. */ | |
399 | Lisp_Object def; | |
400 | /* These are the saved equivalent keyboard key sequence | |
401 | and its key-description. */ | |
402 | Lisp_Object descrip; | |
403 | Lisp_Object tem, enabled; | |
404 | ||
405 | def = menu_item_equiv_key (item_string, item1, &descrip); | |
406 | ||
407 | /* GCPRO because we will call eval. | |
408 | Protecting KEYMAP preserves everything we use; | |
409 | aside from that, must protect whatever might be | |
410 | a string. Since there's no GCPRO5, we refetch | |
411 | item_string instead of protecting it. */ | |
412 | GCPRO4 (keymap, pending_maps, def, descrip); | |
413 | enabled = menu_item_enabled_p (def); | |
414 | UNGCPRO; | |
415 | ||
416 | item_string = XCONS (item1)->car; | |
417 | ||
418 | tem = Fkeymapp (def); | |
419 | if (XSTRING (item_string)->data[0] == '@' && !NILP (tem)) | |
420 | pending_maps = Fcons (Fcons (def, Fcons (item_string, XCONS (item)->car)), | |
421 | pending_maps); | |
422 | else | |
423 | push_menu_item (item_string, enabled, XCONS (item)->car, | |
424 | descrip); | |
425 | } | |
426 | } | |
427 | } | |
428 | else if (XTYPE (item) == Lisp_Vector) | |
429 | { | |
430 | /* Loop over the char values represented in the vector. */ | |
431 | int len = XVECTOR (item)->size; | |
432 | int c; | |
433 | for (c = 0; c < len; c++) | |
434 | { | |
435 | Lisp_Object character; | |
436 | XFASTINT (character) = c; | |
437 | item1 = XVECTOR (item)->contents[c]; | |
438 | if (XTYPE (item1) == Lisp_Cons) | |
439 | { | |
440 | item_string = XCONS (item1)->car; | |
441 | if (XTYPE (item_string) == Lisp_String) | |
442 | { | |
443 | Lisp_Object def; | |
444 | ||
445 | /* These are the saved equivalent keyboard key sequence | |
446 | and its key-description. */ | |
447 | Lisp_Object descrip; | |
448 | Lisp_Object tem, enabled; | |
449 | ||
450 | def = menu_item_equiv_key (item_string, item1, &descrip); | |
451 | ||
452 | /* GCPRO because we will call eval. | |
453 | Protecting KEYMAP preserves everything we use; | |
454 | aside from that, must protect whatever might be | |
455 | a string. Since there's no GCPRO5, we refetch | |
456 | item_string instead of protecting it. */ | |
457 | GCPRO4 (keymap, pending_maps, def, descrip); | |
458 | enabled = menu_item_enabled_p (def); | |
459 | UNGCPRO; | |
460 | ||
461 | item_string = XCONS (item1)->car; | |
462 | ||
463 | tem = Fkeymapp (def); | |
464 | if (XSTRING (item_string)->data[0] == '@' && !NILP (tem)) | |
465 | pending_maps = Fcons (Fcons (def, Fcons (item_string, character)), | |
466 | pending_maps); | |
467 | else | |
468 | push_menu_item (item_string, enabled, | |
469 | character, descrip); | |
470 | } | |
471 | } | |
472 | } | |
18686d47 RS |
473 | } |
474 | } | |
78589e07 RS |
475 | |
476 | /* Process now any submenus which want to be panes at this level. */ | |
477 | while (!NILP (pending_maps)) | |
478 | { | |
479 | Lisp_Object elt, eltcdr; | |
480 | elt = Fcar (pending_maps); | |
481 | eltcdr = XCONS (elt)->cdr; | |
482 | single_keymap_panes (Fcar (elt), | |
483 | /* Fails to discard the @. */ | |
484 | XCONS (eltcdr)->car, XCONS (eltcdr)->cdr); | |
485 | pending_maps = Fcdr (pending_maps); | |
486 | } | |
18686d47 | 487 | } |
78589e07 RS |
488 | \f |
489 | /* Push all the panes and items of a menu decsribed by the | |
490 | alist-of-alists MENU. | |
491 | This handles old-fashioned calls to x-popup-menu. */ | |
18686d47 | 492 | |
78589e07 RS |
493 | static void |
494 | list_of_panes (menu) | |
18686d47 | 495 | Lisp_Object menu; |
18686d47 | 496 | { |
78589e07 RS |
497 | Lisp_Object tail; |
498 | ||
499 | init_menu_items (); | |
500 | ||
501 | for (tail = menu; !NILP (tail); tail = Fcdr (tail)) | |
502 | { | |
503 | Lisp_Object elt, pane_name, pane_data; | |
504 | elt = Fcar (tail); | |
505 | pane_name = Fcar (elt); | |
506 | CHECK_STRING (pane_name, 0); | |
507 | push_menu_pane (pane_name, Qnil); | |
508 | pane_data = Fcdr (elt); | |
509 | CHECK_CONS (pane_data, 0); | |
510 | list_of_items (pane_data); | |
511 | } | |
512 | ||
513 | finish_menu_items (); | |
514 | } | |
515 | ||
516 | /* Push the items in a single pane defined by the alist PANE. */ | |
517 | ||
518 | static void | |
519 | list_of_items (pane) | |
520 | Lisp_Object pane; | |
521 | { | |
522 | Lisp_Object tail, item, item1; | |
523 | ||
524 | for (tail = pane; !NILP (tail); tail = Fcdr (tail)) | |
525 | { | |
526 | item = Fcar (tail); | |
527 | if (STRINGP (item)) | |
528 | push_menu_item (item, Qnil, Qnil); | |
529 | else | |
530 | { | |
531 | CHECK_CONS (item, 0); | |
532 | item1 = Fcar (item); | |
533 | CHECK_STRING (item1, 1); | |
534 | push_menu_item (item1, Qt, Fcdr (item), Qnil); | |
535 | } | |
536 | } | |
537 | } | |
538 | \f | |
539 | DEFUN ("x-popup-menu", Fx_popup_menu, Sx_popup_menu, 1, 2, 0, | |
540 | "Pop up a deck-of-cards menu and return user's selection.\n\ | |
541 | POSITION is a position specification. This is either a mouse button event\n\ | |
542 | or a list ((XOFFSET YOFFSET) WINDOW)\n\ | |
543 | where XOFFSET and YOFFSET are positions in characters from the top left\n\ | |
544 | corner of WINDOW's frame. (WINDOW may be a frame object instead of a window.)\n\ | |
545 | This controls the position of the center of the first line\n\ | |
546 | in the first pane of the menu, not the top left of the menu as a whole.\n\ | |
547 | If POSITION is t, it means to use the current mouse position.\n\ | |
548 | \n\ | |
549 | MENU is a specifier for a menu. For the simplest case, MENU is a keymap.\n\ | |
550 | The menu items come from key bindings that have a menu string as well as\n\ | |
551 | a definition; actually, the \"definition\" in such a key binding looks like\n\ | |
552 | \(STRING . REAL-DEFINITION). To give the menu a title, put a string into\n\ | |
553 | the keymap as a top-level element.\n\n\ | |
554 | You can also use a list of keymaps as MENU.\n\ | |
555 | Then each keymap makes a separate pane.\n\ | |
556 | When MENU is a keymap or a list of keymaps, the return value\n\ | |
557 | is a list of events.\n\n\ | |
558 | Alternatively, you can specify a menu of multiple panes\n\ | |
559 | with a list of the form (TITLE PANE1 PANE2...),\n\ | |
560 | where each pane is a list of form (TITLE ITEM1 ITEM2...).\n\ | |
561 | Each ITEM is normally a cons cell (STRING . VALUE);\n\ | |
562 | but a string can appear as an item--that makes a nonselectable line\n\ | |
563 | in the menu.\n\ | |
564 | With this form of menu, the return value is VALUE from the chosen item.\n\ | |
565 | \n\ | |
566 | If POSITION is nil, don't display the menu at all, just precalculate the\n\ | |
567 | cached information about equivalent key sequences.") | |
568 | (position, menu) | |
569 | Lisp_Object position, menu; | |
570 | { | |
571 | int number_of_panes, panes; | |
18686d47 | 572 | Lisp_Object keymap, tem; |
78589e07 RS |
573 | int xpos, ypos; |
574 | Lisp_Object title; | |
575 | char *error_name; | |
576 | Lisp_Object selection; | |
18686d47 | 577 | int i, j; |
78589e07 RS |
578 | FRAME_PTR f; |
579 | Lisp_Object x, y, window; | |
580 | int keymaps = 0; | |
581 | int menubarp = 0; | |
582 | struct gcpro gcpro1; | |
583 | ||
584 | check_x (); | |
585 | ||
586 | if (! NILP (position)) | |
587 | { | |
588 | /* Decode the first argument: find the window and the coordinates. */ | |
589 | if (EQ (position, Qt)) | |
590 | { | |
591 | /* Use the mouse's current position. */ | |
592 | FRAME_PTR new_f; | |
593 | Lisp_Object bar_window; | |
594 | int part; | |
595 | unsigned long time; | |
596 | ||
597 | (*mouse_position_hook) (&new_f, &bar_window, &part, &x, &y, &time); | |
598 | XSET (window, Lisp_Frame, new_f); | |
599 | } | |
600 | else | |
601 | { | |
602 | tem = Fcar (position); | |
603 | if (XTYPE (tem) == Lisp_Cons) | |
604 | { | |
605 | window = Fcar (Fcdr (position)); | |
606 | x = Fcar (tem); | |
607 | y = Fcar (Fcdr (tem)); | |
608 | } | |
609 | else | |
610 | { | |
611 | tem = Fcar (Fcdr (position)); /* EVENT_START (position) */ | |
612 | window = Fcar (tem); /* POSN_WINDOW (tem) */ | |
613 | tem = Fcar (Fcdr (Fcdr (tem))); /* POSN_WINDOW_POSN (tem) */ | |
614 | x = Fcar (tem); | |
615 | y = Fcdr (tem); | |
616 | ||
617 | /* Determine whether this menu is handling a menu bar click. */ | |
618 | tem = Fcar (Fcdr (Fcar (Fcdr (position)))); | |
619 | if (XTYPE (Fcar (position)) != Lisp_Cons | |
620 | && CONSP (tem) | |
621 | && EQ (Fcar (tem), Qmenu_bar)) | |
622 | menubarp = 1; | |
623 | } | |
624 | } | |
625 | ||
626 | CHECK_NUMBER (x, 0); | |
627 | CHECK_NUMBER (y, 0); | |
628 | ||
629 | /* Decode where to put the menu. */ | |
630 | ||
631 | if (XTYPE (window) == Lisp_Frame) | |
632 | { | |
633 | f = XFRAME (window); | |
634 | ||
635 | xpos = 0; | |
636 | ypos = 0; | |
637 | } | |
638 | else if (XTYPE (window) == Lisp_Window) | |
639 | { | |
640 | CHECK_LIVE_WINDOW (window, 0); | |
641 | f = XFRAME (WINDOW_FRAME (XWINDOW (window))); | |
642 | ||
643 | xpos = (FONT_WIDTH (f->display.x->font) * XWINDOW (window)->left); | |
644 | ypos = (FONT_HEIGHT (f->display.x->font) * XWINDOW (window)->top); | |
645 | } | |
646 | else | |
647 | /* ??? Not really clean; should be CHECK_WINDOW_OR_FRAME, | |
648 | but I don't want to make one now. */ | |
649 | CHECK_WINDOW (window, 0); | |
650 | ||
651 | xpos += XINT (x); | |
652 | ypos += XINT (y); | |
653 | } | |
654 | ||
655 | title = Qnil; | |
656 | GCPRO1 (title); | |
657 | ||
658 | /* Decode the menu items from what was specified. */ | |
18686d47 RS |
659 | |
660 | keymap = Fkeymapp (menu); | |
661 | tem = Qnil; | |
18686d47 RS |
662 | if (XTYPE (menu) == Lisp_Cons) |
663 | tem = Fkeymapp (Fcar (menu)); | |
664 | if (!NILP (keymap)) | |
665 | { | |
666 | /* We were given a keymap. Extract menu info from the keymap. */ | |
667 | Lisp_Object prompt; | |
668 | keymap = get_keymap (menu); | |
669 | ||
78589e07 RS |
670 | /* Extract the detailed info to make one pane. */ |
671 | keymap_panes (&menu, 1); | |
672 | ||
18686d47 RS |
673 | /* Search for a string appearing directly as an element of the keymap. |
674 | That string is the title of the menu. */ | |
675 | prompt = map_prompt (keymap); | |
18686d47 | 676 | |
78589e07 RS |
677 | /* Make that be the pane title of the first pane. */ |
678 | if (!NILP (prompt) && menu_items_n_panes >= 0) | |
679 | XVECTOR (menu_items)->contents[MENU_ITEMS_PANE_NAME] = prompt; | |
680 | ||
681 | keymaps = 1; | |
18686d47 RS |
682 | } |
683 | else if (!NILP (tem)) | |
684 | { | |
685 | /* We were given a list of keymaps. */ | |
18686d47 RS |
686 | int nmaps = XFASTINT (Flength (menu)); |
687 | Lisp_Object *maps | |
688 | = (Lisp_Object *) alloca (nmaps * sizeof (Lisp_Object)); | |
689 | int i; | |
78589e07 RS |
690 | |
691 | title = Qnil; | |
18686d47 RS |
692 | |
693 | /* The first keymap that has a prompt string | |
694 | supplies the menu title. */ | |
695 | for (tem = menu, i = 0; XTYPE (tem) == Lisp_Cons; tem = Fcdr (tem)) | |
696 | { | |
78589e07 RS |
697 | Lisp_Object prompt; |
698 | ||
18686d47 RS |
699 | maps[i++] = keymap = get_keymap (Fcar (tem)); |
700 | ||
701 | prompt = map_prompt (keymap); | |
78589e07 RS |
702 | if (NILP (title) && !NILP (prompt)) |
703 | title = prompt; | |
18686d47 RS |
704 | } |
705 | ||
706 | /* Extract the detailed info to make one pane. */ | |
78589e07 RS |
707 | keymap_panes (maps, nmaps); |
708 | ||
709 | /* Make the title be the pane title of the first pane. */ | |
710 | if (!NILP (title) && menu_items_n_panes >= 0) | |
711 | XVECTOR (menu_items)->contents[MENU_ITEMS_PANE_NAME] = title; | |
712 | ||
713 | keymaps = 1; | |
18686d47 RS |
714 | } |
715 | else | |
716 | { | |
717 | /* We were given an old-fashioned menu. */ | |
78589e07 RS |
718 | title = Fcar (menu); |
719 | CHECK_STRING (title, 1); | |
18686d47 | 720 | |
78589e07 | 721 | list_of_panes (Fcdr (menu)); |
18686d47 | 722 | |
78589e07 RS |
723 | keymaps = 0; |
724 | } | |
18686d47 | 725 | |
78589e07 | 726 | if (NILP (position)) |
18686d47 | 727 | { |
78589e07 RS |
728 | discard_menu_items (); |
729 | UNGCPRO; | |
730 | return Qnil; | |
18686d47 RS |
731 | } |
732 | ||
78589e07 RS |
733 | /* Display them in a menu. */ |
734 | BLOCK_INPUT; | |
18686d47 | 735 | |
78589e07 RS |
736 | selection = xmenu_show (f, xpos, ypos, menubarp, |
737 | keymaps, title, &error_name); | |
738 | UNBLOCK_INPUT; | |
18686d47 | 739 | |
78589e07 | 740 | discard_menu_items (); |
18686d47 | 741 | |
78589e07 | 742 | UNGCPRO; |
18686d47 | 743 | |
78589e07 RS |
744 | if (error_name) error (error_name); |
745 | return selection; | |
18686d47 | 746 | } |
78589e07 RS |
747 | \f |
748 | #ifdef USE_X_TOOLKIT | |
18686d47 RS |
749 | |
750 | static void | |
78589e07 RS |
751 | dispatch_dummy_expose (w, x, y) |
752 | Widget w; | |
753 | int x; | |
754 | int y; | |
755 | { | |
756 | XExposeEvent dummy; | |
757 | ||
758 | dummy.type = Expose; | |
759 | dummy.window = XtWindow (w); | |
760 | dummy.count = 0; | |
761 | dummy.serial = 0; | |
762 | dummy.send_event = 0; | |
763 | dummy.display = XtDisplay (w); | |
764 | dummy.x = x; | |
765 | dummy.y = y; | |
766 | ||
767 | XtDispatchEvent (&dummy); | |
768 | } | |
769 | ||
770 | static int | |
771 | string_width (mw, s) | |
772 | XlwMenuWidget mw; | |
773 | char* s; | |
774 | { | |
775 | XCharStruct xcs; | |
776 | int drop; | |
777 | ||
778 | XTextExtents (mw->menu.font, s, strlen (s), &drop, &drop, &drop, &xcs); | |
779 | return xcs.width; | |
780 | } | |
781 | ||
782 | static int | |
783 | event_is_in_menu_item (mw, event, name, string_w) | |
784 | XlwMenuWidget mw; | |
785 | struct input_event *event; | |
786 | char *name; | |
787 | int *string_w; | |
788 | { | |
789 | *string_w += (string_width (mw, name) | |
790 | + 2 * (mw->menu.horizontal_spacing | |
791 | + mw->menu.shadow_thickness)); | |
792 | return XINT (event->x) < *string_w; | |
793 | } | |
794 | ||
795 | ||
796 | Lisp_Object | |
797 | map_event_to_object (event, f) | |
798 | struct input_event *event; | |
799 | FRAME_PTR f; | |
800 | { | |
801 | int i,j, string_w; | |
802 | window_state* ws; | |
803 | XlwMenuWidget mw = (XlwMenuWidget) f->display.x->menubar_widget; | |
804 | widget_value *val; | |
805 | ||
806 | ||
807 | string_w = 0; | |
808 | /* Find the window */ | |
809 | for (val = mw->menu.old_stack [0]->contents; val; val = val->next) | |
810 | { | |
811 | ws = &mw->menu.windows [0]; | |
812 | if (ws && event_is_in_menu_item (mw, event, val->name, &string_w)) | |
813 | { | |
814 | Lisp_Object items; | |
815 | items = FRAME_MENU_BAR_ITEMS (f); | |
816 | for (; CONSP (items); items = XCONS (items)->cdr) | |
817 | if (!strcmp (val->name, | |
818 | XSTRING (Fcar (Fcdr (Fcar (items))))->data)) | |
819 | return items; | |
820 | } | |
821 | } | |
822 | return Qnil; | |
823 | } | |
824 | ||
825 | static Lisp_Object *menu_item_selection; | |
826 | ||
827 | static void | |
828 | popup_selection_callback (widget, id, client_data) | |
829 | Widget widget; | |
830 | LWLIB_ID id; | |
831 | XtPointer client_data; | |
832 | { | |
833 | menu_item_selection = (Lisp_Object *) client_data; | |
834 | } | |
835 | ||
836 | static void | |
837 | popup_down_callback (widget, id, client_data) | |
838 | Widget widget; | |
839 | LWLIB_ID id; | |
840 | XtPointer client_data; | |
841 | { | |
18686d47 RS |
842 | BLOCK_INPUT; |
843 | lw_destroy_all_widgets (id); | |
844 | UNBLOCK_INPUT; | |
18686d47 RS |
845 | } |
846 | ||
847 | /* This recursively calls free_widget_value() on the tree of widgets. | |
848 | It must free all data that was malloc'ed for these widget_values. | |
78589e07 RS |
849 | In Emacs, many slots are pointers into the data of Lisp_Strings, and |
850 | must be left alone. */ | |
851 | ||
18686d47 RS |
852 | void |
853 | free_menubar_widget_value_tree (wv) | |
854 | widget_value *wv; | |
855 | { | |
856 | if (! wv) return; | |
18686d47 RS |
857 | |
858 | wv->name = wv->value = wv->key = (char *) 0xDEADBEEF; | |
859 | ||
860 | if (wv->contents && (wv->contents != (widget_value*)1)) | |
861 | { | |
862 | free_menubar_widget_value_tree (wv->contents); | |
863 | wv->contents = (widget_value *) 0xDEADBEEF; | |
864 | } | |
865 | if (wv->next) | |
866 | { | |
867 | free_menubar_widget_value_tree (wv->next); | |
868 | wv->next = (widget_value *) 0xDEADBEEF; | |
869 | } | |
870 | BLOCK_INPUT; | |
871 | free_widget_value (wv); | |
872 | UNBLOCK_INPUT; | |
873 | } | |
874 | ||
875 | static void | |
876 | update_one_frame_psheets (f) | |
877 | FRAME_PTR f; | |
878 | { | |
879 | struct x_display *x = f->display.x; | |
880 | ||
881 | int menubar_changed; | |
882 | ||
883 | menubar_changed = (x->menubar_widget | |
884 | && !XtIsManaged (x->menubar_widget)); | |
885 | ||
886 | if (! (menubar_changed)) | |
887 | return; | |
888 | ||
889 | BLOCK_INPUT; | |
890 | XawPanedSetRefigureMode (x->column_widget, 0); | |
891 | ||
892 | /* the order in which children are managed is the top to | |
893 | bottom order in which they are displayed in the paned window. | |
894 | First, remove the text-area widget. | |
895 | */ | |
896 | XtUnmanageChild (x->edit_widget); | |
897 | ||
898 | /* remove the menubar that is there now, and put up the menubar that | |
899 | should be there. | |
900 | */ | |
901 | if (menubar_changed) | |
902 | { | |
903 | XtManageChild (x->menubar_widget); | |
904 | XtMapWidget (x->menubar_widget); | |
905 | XtVaSetValues (x->menubar_widget, XtNmappedWhenManaged, 1, 0); | |
906 | } | |
907 | ||
908 | ||
909 | /* Re-manage the text-area widget */ | |
910 | XtManageChild (x->edit_widget); | |
911 | ||
912 | /* and now thrash the sizes */ | |
913 | XawPanedSetRefigureMode (x->column_widget, 1); | |
914 | UNBLOCK_INPUT; | |
915 | } | |
916 | ||
917 | void | |
918 | set_frame_menubar (f) | |
919 | FRAME_PTR f; | |
920 | { | |
921 | Widget menubar_widget = f->display.x->menubar_widget; | |
922 | int id = (int) f; | |
923 | Lisp_Object tail; | |
924 | widget_value *wv, *save_wv, *first_wv, *prev_wv = 0; | |
925 | ||
926 | BLOCK_INPUT; | |
927 | ||
928 | wv = malloc_widget_value (); | |
929 | wv->name = "menubar"; | |
930 | wv->value = 0; | |
931 | wv->enabled = 1; | |
932 | save_wv = first_wv = wv; | |
933 | ||
934 | ||
935 | for (tail = FRAME_MENU_BAR_ITEMS (f); CONSP (tail); tail = XCONS (tail)->cdr) | |
936 | { | |
937 | Lisp_Object string; | |
938 | ||
939 | string = Fcar (Fcdr (Fcar (tail))); | |
940 | ||
941 | wv = malloc_widget_value (); | |
942 | if (prev_wv) | |
943 | prev_wv->next = wv; | |
944 | else | |
945 | save_wv->contents = wv; | |
946 | wv->name = XSTRING (string)->data; | |
947 | wv->value = 0; | |
948 | wv->enabled = 1; | |
949 | prev_wv = wv; | |
950 | } | |
951 | ||
952 | if (menubar_widget) | |
953 | lw_modify_all_widgets (id, first_wv, False); | |
954 | else | |
955 | { | |
956 | menubar_widget = lw_create_widget ("menubar", "menubar", | |
957 | id, first_wv, | |
958 | f->display.x->column_widget, | |
959 | 0, 0, | |
960 | 0, 0); | |
961 | f->display.x->menubar_widget = menubar_widget; | |
962 | XtVaSetValues (menubar_widget, | |
963 | XtNshowGrip, 0, | |
964 | XtNresizeToPreferred, 1, | |
965 | XtNallowResize, 1, | |
966 | 0); | |
967 | } | |
968 | ||
969 | free_menubar_widget_value_tree (first_wv); | |
970 | ||
971 | update_one_frame_psheets (f); | |
972 | ||
973 | UNBLOCK_INPUT; | |
974 | } | |
85f487d1 FP |
975 | |
976 | void | |
977 | free_frame_menubar (f) | |
978 | FRAME_PTR f; | |
979 | { | |
980 | Widget menubar_widget; | |
981 | int id; | |
982 | ||
983 | menubar_widget = f->display.x->menubar_widget; | |
984 | id = (int) f; | |
985 | ||
986 | if (menubar_widget) | |
987 | { | |
988 | BLOCK_INPUT; | |
989 | lw_destroy_all_widgets (id); | |
990 | UNBLOCK_INPUT; | |
991 | } | |
992 | } | |
18686d47 | 993 | \f |
78589e07 RS |
994 | /* Nonzero if position X, Y relative to inside of frame F |
995 | is in some other menu bar item. */ | |
dcfdbac7 | 996 | |
78589e07 RS |
997 | static int this_menu_bar_item_beg; |
998 | static int this_menu_bar_item_end; | |
999 | ||
1000 | static int | |
1001 | other_menu_bar_item_p (f, x, y) | |
1002 | FRAME_PTR f; | |
1003 | int x, y; | |
1004 | { | |
1005 | return (y >= 0 | |
1006 | && y < f->display.x->menubar_widget->core.height | |
1007 | && x >= 0 | |
1008 | && x < f->display.x->menubar_widget->core.width | |
1009 | && (x >= this_menu_bar_item_end | |
1010 | || x < this_menu_bar_item_beg)); | |
1011 | } | |
1012 | ||
1013 | /* Unread a button-press event in the menu bar of frame F | |
1014 | at x position XPOS relative to the inside of the frame. */ | |
1015 | ||
1016 | static void | |
1017 | unread_menu_bar_button (f, xpos) | |
1018 | FRAME_PTR f; | |
1019 | int xpos; | |
1020 | { | |
1021 | XEvent event; | |
1022 | ||
1023 | event.type = ButtonPress; | |
1024 | event.xbutton.display = x_current_display; | |
1025 | event.xbutton.serial = 0; | |
1026 | event.xbutton.send_event = 0; | |
1027 | event.xbutton.time = CurrentTime; | |
1028 | event.xbutton.button = Button1; | |
1029 | event.xbutton.window = XtWindow (f->display.x->menubar_widget); | |
1030 | event.xbutton.x = xpos; | |
1031 | XPutBackEvent (XDISPLAY &event); | |
1032 | } | |
1033 | ||
1034 | /* If the mouse has moved to another menu bar item, | |
1035 | return 1 and unread a button press event for that item. | |
1036 | Otherwise return 0. */ | |
1037 | ||
1038 | static int | |
1039 | check_mouse_other_menu_bar (f) | |
1040 | FRAME_PTR f; | |
1041 | { | |
1042 | FRAME_PTR new_f; | |
1043 | Lisp_Object bar_window; | |
1044 | int part; | |
1045 | Lisp_Object x, y; | |
1046 | unsigned long time; | |
1047 | ||
1048 | (*mouse_position_hook) (&new_f, &bar_window, &part, &x, &y, &time); | |
1049 | ||
1050 | if (f == new_f && other_menu_bar_item_p (f, x, y)) | |
1051 | { | |
1052 | unread_menu_bar_button (f, x); | |
1053 | return 1; | |
1054 | } | |
1055 | ||
1056 | return 0; | |
1057 | } | |
1058 | #endif /* USE_X_TOOLKIT */ | |
1059 | \f | |
1060 | /* xmenu_show actually displays a menu using the panes and items in menu_items | |
1061 | and returns the value selected from it. | |
1062 | There are two versions of xmenu_show, one for Xt and one for Xlib. | |
1063 | Both assume input is blocked by the caller. */ | |
1064 | ||
1065 | /* F is the frame the menu is for. | |
1066 | X and Y are the frame-relative specified position, | |
1067 | relative to the inside upper left corner of the frame F. | |
1068 | MENUBARP is 1 if the click that asked for this menu came from the menu bar. | |
1069 | KEYMAPS is 1 if this menu was specified with keymaps; | |
1070 | in that case, we return a list containing the chosen item's value | |
1071 | and perhaps also the pane's prefix. | |
1072 | TITLE is the specified menu title. | |
1073 | ERROR is a place to store an error message string in case of failure. | |
1074 | (We return nil on failure, but the value doesn't actually matter.) */ | |
18686d47 RS |
1075 | |
1076 | #ifdef USE_X_TOOLKIT | |
18686d47 | 1077 | |
78589e07 RS |
1078 | static Lisp_Object |
1079 | xmenu_show (f, x, y, menubarp, keymaps, title, error) | |
18686d47 | 1080 | FRAME_PTR f; |
18686d47 RS |
1081 | int x; |
1082 | int y; | |
1083 | int menubarp; | |
78589e07 RS |
1084 | int keymaps; |
1085 | Lisp_Object title; | |
1086 | char **error; | |
18686d47 | 1087 | { |
78589e07 RS |
1088 | int i; |
1089 | int menu_id; | |
18686d47 | 1090 | Widget menu; |
78589e07 | 1091 | XlwMenuWidget menubar = (XlwMenuWidget) f->display.x->menubar_widget; |
18686d47 | 1092 | |
78589e07 RS |
1093 | /* This is the menu bar item (if any) that led to this menu. */ |
1094 | widget_value *menubar_item = 0; | |
1095 | ||
1096 | widget_value *wv, *save_wv = 0, *first_wv = 0, *prev_wv = 0; | |
1097 | ||
1098 | /* Define a queue to save up for later unreading | |
1099 | all X events that don't pertain to the menu. */ | |
1100 | struct event_queue | |
18686d47 RS |
1101 | { |
1102 | XEvent event; | |
78589e07 RS |
1103 | struct event_queue *next; |
1104 | }; | |
18686d47 | 1105 | |
78589e07 RS |
1106 | struct event_queue *queue = NULL; |
1107 | struct event_queue *queue_tmp; | |
1108 | ||
1109 | *error = NULL; | |
1110 | ||
1111 | this_menu_bar_item_beg = -1; | |
1112 | this_menu_bar_item_end = -1; | |
1113 | ||
1114 | /* Figure out which menu bar item, if any, this menu is for. */ | |
1115 | if (menubarp) | |
1116 | { | |
1117 | int xbeg; | |
1118 | int xend = 0; | |
1119 | ||
1120 | for (menubar_item = menubar->menu.old_stack[0]->contents; | |
1121 | menubar_item; | |
1122 | menubar_item = menubar_item->next) | |
1123 | { | |
1124 | xbeg = xend; | |
1125 | xend += (string_width (menubar, menubar_item->name) | |
1126 | + 2 * (menubar->menu.horizontal_spacing | |
1127 | + menubar->menu.shadow_thickness)); | |
1128 | if (x < xend) | |
1129 | { | |
1130 | x = xbeg + 4; | |
1131 | y = 0; | |
1132 | /* Arrange to show a different menu if we move in the menu bar | |
1133 | to a different item. */ | |
1134 | this_menu_bar_item_beg = xbeg; | |
1135 | this_menu_bar_item_end = xend; | |
1136 | break; | |
1137 | } | |
1138 | } | |
1139 | } | |
1140 | if (menubar_item == 0) | |
1141 | menubarp = 0; | |
1142 | ||
1143 | /* Offset the coordinates to root-relative. */ | |
1144 | x += (f->display.x->widget->core.x | |
1145 | + f->display.x->widget->core.border_width); | |
1146 | y += (f->display.x->widget->core.y | |
1147 | + f->display.x->widget->core.border_width | |
1148 | + f->display.x->menubar_widget->core.height); | |
63c414df | 1149 | |
78589e07 RS |
1150 | /* Create a tree of widget_value objects |
1151 | representing the panes and their items. */ | |
1152 | wv = malloc_widget_value (); | |
1153 | wv->name = "menu"; | |
1154 | wv->value = 0; | |
1155 | wv->enabled = 1; | |
1156 | first_wv = wv; | |
1157 | ||
1158 | /* Loop over all panes and items, filling in the tree. */ | |
1159 | i = 0; | |
1160 | while (i < menu_items_used) | |
1161 | { | |
1162 | if (EQ (XVECTOR (menu_items)->contents[i], Qt)) | |
1163 | { | |
1164 | /* Create a new pane. */ | |
1165 | Lisp_Object pane_name, prefix; | |
1166 | char *pane_string; | |
1167 | pane_name = XVECTOR (menu_items)->contents[i + MENU_ITEMS_PANE_NAME]; | |
1168 | prefix = XVECTOR (menu_items)->contents[i + MENU_ITEMS_PANE_PREFIX]; | |
1169 | pane_string = (NILP (pane_name) | |
1170 | ? "" : (char *) XSTRING (pane_name)->data); | |
1171 | /* If there is just one pane, put all its items directly | |
1172 | under the top-level menu. */ | |
1173 | if (menu_items_n_panes == 1) | |
1174 | pane_string = ""; | |
1175 | ||
1176 | /* If the pane has a meaningful name, | |
1177 | make the pane a top-level menu item | |
1178 | with its items as a submenu beneath it. */ | |
1179 | if (strcmp (pane_string, "")) | |
1180 | { | |
1181 | wv = malloc_widget_value (); | |
1182 | if (save_wv) | |
1183 | save_wv->next = wv; | |
1184 | else | |
1185 | first_wv->contents = wv; | |
1186 | wv->name = pane_string; | |
1187 | if (keymaps && !NILP (prefix)) | |
1188 | wv->name++; | |
1189 | wv->value = 0; | |
1190 | wv->enabled = 1; | |
1191 | } | |
1192 | save_wv = wv; | |
1193 | prev_wv = 0; | |
1194 | i += MENU_ITEMS_PANE_LENGTH; | |
1195 | } | |
1196 | else | |
1197 | { | |
1198 | /* Create a new item within current pane. */ | |
1199 | Lisp_Object item_name, enable, descrip; | |
1200 | item_name = XVECTOR (menu_items)->contents[i + MENU_ITEMS_ITEM_NAME]; | |
1201 | enable = XVECTOR (menu_items)->contents[i + MENU_ITEMS_ITEM_ENABLE]; | |
1202 | descrip | |
1203 | = XVECTOR (menu_items)->contents[i + MENU_ITEMS_ITEM_EQUIV_KEY]; | |
1204 | ||
1205 | wv = malloc_widget_value (); | |
1206 | if (prev_wv) | |
1207 | prev_wv->next = wv; | |
1208 | else | |
1209 | save_wv->contents = wv; | |
1210 | wv->name = XSTRING (item_name)->data; | |
1211 | if (!NILP (descrip)) | |
1212 | wv->key = XSTRING (descrip)->data; | |
1213 | wv->value = 0; | |
1214 | wv->call_data = (void *) &XVECTOR (menu_items)->contents[i]; | |
1215 | wv->enabled = !NILP (enable); | |
1216 | prev_wv = wv; | |
1217 | ||
1218 | i += MENU_ITEMS_ITEM_LENGTH; | |
1219 | } | |
1220 | } | |
1221 | ||
1222 | /* Actually create the menu. */ | |
18686d47 | 1223 | menu_id = ++popup_id_tick; |
78589e07 | 1224 | menu = lw_create_widget ("popup", first_wv->name, menu_id, first_wv, |
18686d47 RS |
1225 | f->display.x->widget, 1, 0, |
1226 | popup_selection_callback, popup_down_callback); | |
78589e07 RS |
1227 | /* Free the widget_value objects we used to specify the contents. */ |
1228 | free_menubar_widget_value_tree (first_wv); | |
1229 | ||
1230 | /* No selection has been chosen yet. */ | |
1231 | menu_item_selection = 0; | |
1232 | ||
1233 | /* If the mouse moves out of the menu before we show the menu, | |
1234 | don't show it at all. */ | |
1235 | if (check_mouse_other_menu_bar (f)) | |
1236 | { | |
1237 | lw_destroy_all_widgets (menu_id); | |
1238 | return Qnil; | |
1239 | } | |
1240 | ||
18686d47 | 1241 | |
78589e07 RS |
1242 | /* Highlight the menu bar item (if any) that led to this menu. */ |
1243 | if (menubarp) | |
1244 | { | |
1245 | menubar_item->call_data = (XtPointer) 1; | |
1246 | dispatch_dummy_expose (f->display.x->menubar_widget, x, y); | |
1247 | } | |
18686d47 | 1248 | |
78589e07 | 1249 | /* Display the menu. */ |
18686d47 RS |
1250 | { |
1251 | XButtonPressedEvent dummy; | |
1252 | XlwMenuWidget mw; | |
1253 | ||
78589e07 | 1254 | mw = (XlwMenuWidget) ((CompositeWidget)menu)->composite.children[0]; |
18686d47 RS |
1255 | |
1256 | dummy.type = ButtonPress; | |
1257 | dummy.serial = 0; | |
1258 | dummy.send_event = 0; | |
1259 | dummy.display = XtDisplay (menu); | |
1260 | dummy.window = XtWindow (XtParent (menu)); | |
1261 | dummy.time = CurrentTime; | |
1262 | dummy.button = 0; | |
1263 | dummy.x_root = x; | |
1264 | dummy.y_root = y; | |
1265 | ||
78589e07 | 1266 | /* We activate directly the lucid implementation. */ |
18686d47 RS |
1267 | pop_up_menu (mw, &dummy); |
1268 | } | |
1269 | ||
78589e07 RS |
1270 | /* Check again whether the mouse has moved to another menu bar item. */ |
1271 | if (check_mouse_other_menu_bar (f)) | |
47e8f9a3 | 1272 | { |
78589e07 RS |
1273 | /* The mouse moved into a different menu bar item. |
1274 | We should bring up that item's menu instead. | |
1275 | First pop down this menu. */ | |
1276 | XtUngrabPointer ((Widget) | |
1277 | ((XlwMenuWidget) | |
1278 | ((CompositeWidget)menu)->composite.children[0]), | |
1279 | CurrentTime); | |
1280 | lw_destroy_all_widgets (menu_id); | |
1281 | goto pop_down; | |
47e8f9a3 FP |
1282 | } |
1283 | ||
78589e07 | 1284 | /* Process events that apply to the menu. */ |
18686d47 RS |
1285 | while (1) |
1286 | { | |
18686d47 | 1287 | XEvent event; |
78589e07 | 1288 | |
18686d47 RS |
1289 | XtAppNextEvent (Xt_app_con, &event); |
1290 | if (event.type == ButtonRelease) | |
1291 | { | |
1292 | XtDispatchEvent (&event); | |
1293 | break; | |
1294 | } | |
78589e07 RS |
1295 | else if (event.type == Expose) |
1296 | process_expose_from_menu (event); | |
1297 | else if (event.type == MotionNotify) | |
1298 | { | |
1299 | int event_x = (event.xmotion.x_root | |
1300 | - (f->display.x->widget->core.x | |
1301 | + f->display.x->widget->core.border_width)); | |
1302 | int event_y = (event.xmotion.y_root | |
1303 | - (f->display.x->widget->core.y | |
1304 | + f->display.x->widget->core.border_width)); | |
1305 | ||
1306 | if (other_menu_bar_item_p (f, event_x, event_y)) | |
1307 | { | |
1308 | /* The mouse moved into a different menu bar item. | |
1309 | We should bring up that item's menu instead. | |
1310 | First pop down this menu. */ | |
1311 | XtUngrabPointer ((Widget) | |
1312 | ((XlwMenuWidget) | |
1313 | ((CompositeWidget)menu)->composite.children[0]), | |
1314 | event.xbutton.time); | |
1315 | lw_destroy_all_widgets (menu_id); | |
1316 | ||
1317 | /* Put back an event that will bring up the other item's menu. */ | |
1318 | unread_menu_bar_button (f, event_x); | |
1319 | /* Don't let us select anything in this case. */ | |
1320 | menu_item_selection = 0; | |
1321 | break; | |
1322 | } | |
1323 | } | |
47e8f9a3 | 1324 | |
18686d47 | 1325 | XtDispatchEvent (&event); |
0f7159e3 | 1326 | if (XtWindowToWidget(event.xany.window) != menu) |
78589e07 | 1327 | { |
0f7159e3 FP |
1328 | queue_tmp = (struct event_queue *) malloc (sizeof (struct event_queue)); |
1329 | ||
1330 | if (queue_tmp != NULL) | |
1331 | { | |
1332 | queue_tmp->event = event; | |
1333 | queue_tmp->next = queue; | |
1334 | queue = queue_tmp; | |
1335 | } | |
78589e07 | 1336 | } |
18686d47 | 1337 | } |
78589e07 RS |
1338 | |
1339 | pop_down: | |
1340 | /* Unhighlight the menu bar item (if any) that led to this menu. */ | |
18686d47 RS |
1341 | if (menubarp) |
1342 | { | |
78589e07 | 1343 | menubar_item->call_data = (XtPointer) 0; |
399703f1 | 1344 | dispatch_dummy_expose (f->display.x->menubar_widget, x, y); |
18686d47 RS |
1345 | } |
1346 | ||
78589e07 RS |
1347 | /* Make sure the menu disappears. */ |
1348 | lw_destroy_all_widgets (menu_id); | |
1349 | ||
1350 | /* Unread any events that we got but did not handle. */ | |
1351 | while (queue != NULL) | |
18686d47 | 1352 | { |
78589e07 RS |
1353 | queue_tmp = queue; |
1354 | XPutBackEvent (XDISPLAY &queue_tmp->event); | |
1355 | queue = queue_tmp->next; | |
1356 | free ((char *)queue_tmp); | |
18686d47 RS |
1357 | } |
1358 | ||
78589e07 RS |
1359 | /* Find the selected item, and its pane, to return |
1360 | the proper value. */ | |
1361 | if (menu_item_selection != 0) | |
1362 | { | |
1363 | Lisp_Object prefix; | |
1364 | ||
1365 | prefix = Qnil; | |
1366 | i = 0; | |
1367 | while (i < menu_items_used) | |
1368 | { | |
1369 | Lisp_Object entry; | |
18686d47 | 1370 | |
78589e07 RS |
1371 | if (EQ (XVECTOR (menu_items)->contents[i], Qt)) |
1372 | { | |
1373 | prefix | |
1374 | = XVECTOR (menu_items)->contents[i + MENU_ITEMS_PANE_PREFIX]; | |
1375 | i += MENU_ITEMS_PANE_LENGTH; | |
1376 | } | |
1377 | else | |
1378 | { | |
1379 | entry | |
1380 | = XVECTOR (menu_items)->contents[i + MENU_ITEMS_ITEM_VALUE]; | |
1381 | if (menu_item_selection == &XVECTOR (menu_items)->contents[i]) | |
1382 | { | |
1383 | if (keymaps != 0) | |
1384 | { | |
1385 | entry = Fcons (entry, Qnil); | |
1386 | if (!NILP (prefix)) | |
1387 | entry = Fcons (prefix, entry); | |
1388 | } | |
1389 | return entry; | |
1390 | } | |
1391 | i += MENU_ITEMS_ITEM_LENGTH; | |
1392 | } | |
1393 | } | |
1394 | } | |
1395 | ||
1396 | return Qnil; | |
18686d47 RS |
1397 | } |
1398 | ||
1399 | #else /* not USE_X_TOOLKIT */ | |
78589e07 RS |
1400 | |
1401 | static Lisp_Object | |
1402 | xmenu_show (f, x, y, menubarp, keymaps, title, error) | |
1403 | FRAME_PTR f; | |
1404 | int x, y; | |
1405 | int keymaps; | |
1406 | int menubarp; | |
1407 | Lisp_Object title; | |
1408 | char **error; | |
dcfdbac7 | 1409 | { |
78589e07 RS |
1410 | Window root; |
1411 | XMenu *menu; | |
1412 | int pane, selidx, lpane, status; | |
1413 | Lisp_Object entry, pane_prefix; | |
dcfdbac7 JB |
1414 | char *datap; |
1415 | int ulx, uly, width, height; | |
1416 | int dispwidth, dispheight; | |
78589e07 RS |
1417 | int i; |
1418 | int dummy_int; | |
1419 | unsigned int dummy_uint; | |
088831f6 | 1420 | |
07a675b7 | 1421 | *error = 0; |
78589e07 RS |
1422 | if (menu_items_n_panes == 0) |
1423 | return Qnil; | |
088831f6 | 1424 | |
78589e07 RS |
1425 | /* Figure out which root window F is on. */ |
1426 | XGetGeometry (x_current_display, FRAME_X_WINDOW (f), &root, | |
1427 | &dummy_int, &dummy_int, &dummy_uint, &dummy_uint, | |
1428 | &dummy_uint, &dummy_uint); | |
18686d47 | 1429 | |
78589e07 RS |
1430 | /* Make the menu on that window. */ |
1431 | menu = XMenuCreate (XDISPLAY root, "emacs"); | |
1432 | if (menu == NULL) | |
dcfdbac7 JB |
1433 | { |
1434 | *error = "Can't create menu"; | |
78589e07 | 1435 | return Qnil; |
dcfdbac7 | 1436 | } |
78589e07 RS |
1437 | |
1438 | /* Adjust coordinates to relative to the outer (window manager) window. */ | |
1439 | #ifdef HAVE_X11 | |
1440 | { | |
1441 | Window child; | |
1442 | int win_x = 0, win_y = 0; | |
1443 | ||
1444 | /* Find the position of the outside upper-left corner of | |
1445 | the inner window, with respect to the outer window. */ | |
1446 | if (f->display.x->parent_desc != ROOT_WINDOW) | |
1447 | { | |
1448 | BLOCK_INPUT; | |
1449 | XTranslateCoordinates (x_current_display, | |
1450 | ||
1451 | /* From-window, to-window. */ | |
1452 | f->display.x->window_desc, | |
1453 | f->display.x->parent_desc, | |
1454 | ||
1455 | /* From-position, to-position. */ | |
1456 | 0, 0, &win_x, &win_y, | |
1457 | ||
1458 | /* Child of window. */ | |
1459 | &child); | |
1460 | UNBLOCK_INPUT; | |
1461 | x += win_x; | |
1462 | y += win_y; | |
1463 | } | |
1464 | } | |
1465 | #endif /* HAVE_X11 */ | |
1466 | ||
1467 | /* Adjust coordinates to be root-window-relative. */ | |
1468 | x += f->display.x->left_pos; | |
1469 | y += f->display.x->top_pos; | |
18686d47 | 1470 | |
78589e07 RS |
1471 | /* Create all the necessary panes and their items. */ |
1472 | i = 0; | |
1473 | while (i < menu_items_used) | |
dcfdbac7 | 1474 | { |
78589e07 | 1475 | if (EQ (XVECTOR (menu_items)->contents[i], Qt)) |
dcfdbac7 | 1476 | { |
78589e07 RS |
1477 | /* Create a new pane. */ |
1478 | Lisp_Object pane_name, prefix; | |
1479 | char *pane_string; | |
1480 | ||
1481 | pane_name = XVECTOR (menu_items)->contents[i + MENU_ITEMS_PANE_NAME]; | |
1482 | prefix = XVECTOR (menu_items)->contents[i + MENU_ITEMS_PANE_PREFIX]; | |
1483 | pane_string = (NILP (pane_name) | |
1484 | ? "" : (char *) XSTRING (pane_name)->data); | |
1485 | if (keymaps && !NILP (prefix)) | |
1486 | pane_string++; | |
1487 | ||
1488 | lpane = XMenuAddPane (XDISPLAY menu, pane_string, TRUE); | |
1489 | if (lpane == XM_FAILURE) | |
1490 | { | |
1491 | XMenuDestroy (XDISPLAY menu); | |
1492 | *error = "Can't create pane"; | |
1493 | return Qnil; | |
1494 | } | |
1495 | i += MENU_ITEMS_PANE_LENGTH; | |
dcfdbac7 | 1496 | } |
78589e07 | 1497 | else |
dcfdbac7 | 1498 | { |
78589e07 RS |
1499 | /* Create a new item within current pane. */ |
1500 | Lisp_Object item_name, enable, descrip; | |
1501 | ||
1502 | item_name = XVECTOR (menu_items)->contents[i + MENU_ITEMS_ITEM_NAME]; | |
1503 | enable = XVECTOR (menu_items)->contents[i + MENU_ITEMS_ITEM_ENABLE]; | |
1504 | descrip | |
1505 | = XVECTOR (menu_items)->contents[i + MENU_ITEMS_ITEM_EQUIV_KEY]; | |
1506 | if (!NILP (descrip)) | |
1507 | item_name = concat2 (item_name, descrip); | |
1508 | ||
1509 | if (XMenuAddSelection (XDISPLAY menu, lpane, 0, | |
1510 | XSTRING (item_name)->data, | |
1511 | !NILP (enable)) | |
dcfdbac7 JB |
1512 | == XM_FAILURE) |
1513 | { | |
78589e07 | 1514 | XMenuDestroy (XDISPLAY menu); |
dcfdbac7 | 1515 | *error = "Can't add selection to menu"; |
78589e07 | 1516 | return Qnil; |
dcfdbac7 | 1517 | } |
78589e07 | 1518 | i += MENU_ITEMS_ITEM_LENGTH; |
dcfdbac7 JB |
1519 | } |
1520 | } | |
78589e07 RS |
1521 | |
1522 | /* All set and ready to fly. */ | |
1523 | XMenuRecompute (XDISPLAY menu); | |
dcfdbac7 JB |
1524 | dispwidth = DisplayWidth (x_current_display, XDefaultScreen (x_current_display)); |
1525 | dispheight = DisplayHeight (x_current_display, XDefaultScreen (x_current_display)); | |
78589e07 RS |
1526 | x = min (x, dispwidth); |
1527 | y = min (y, dispheight); | |
1528 | x = max (x, 1); | |
1529 | y = max (y, 1); | |
1530 | XMenuLocate (XDISPLAY menu, 0, 0, x, y, | |
dcfdbac7 JB |
1531 | &ulx, &uly, &width, &height); |
1532 | if (ulx+width > dispwidth) | |
1533 | { | |
78589e07 | 1534 | x -= (ulx + width) - dispwidth; |
dcfdbac7 JB |
1535 | ulx = dispwidth - width; |
1536 | } | |
1537 | if (uly+height > dispheight) | |
1538 | { | |
78589e07 | 1539 | y -= (uly + height) - dispheight; |
dcfdbac7 JB |
1540 | uly = dispheight - height; |
1541 | } | |
78589e07 RS |
1542 | if (ulx < 0) x -= ulx; |
1543 | if (uly < 0) y -= uly; | |
dcfdbac7 | 1544 | |
78589e07 RS |
1545 | XMenuSetFreeze (menu, TRUE); |
1546 | pane = selidx = 0; | |
dcfdbac7 | 1547 | |
78589e07 RS |
1548 | status = XMenuActivate (XDISPLAY menu, &pane, &selidx, |
1549 | x, y, ButtonReleaseMask, &datap); | |
dcfdbac7 JB |
1550 | switch (status) |
1551 | { | |
1552 | case XM_SUCCESS: | |
1553 | #ifdef XDEBUG | |
1554 | fprintf (stderr, "pane= %d line = %d\n", panes, selidx); | |
1555 | #endif | |
fa6d54d9 | 1556 | |
78589e07 RS |
1557 | /* Find the item number SELIDX in pane number PANE. */ |
1558 | i = 0; | |
1559 | while (i < menu_items_used) | |
fa6d54d9 | 1560 | { |
78589e07 | 1561 | if (EQ (XVECTOR (menu_items)->contents[i], Qt)) |
088831f6 | 1562 | { |
78589e07 RS |
1563 | if (pane == 0) |
1564 | pane_prefix | |
1565 | = XVECTOR (menu_items)->contents[i + MENU_ITEMS_PANE_PREFIX]; | |
1566 | pane--; | |
1567 | i += MENU_ITEMS_PANE_LENGTH; | |
088831f6 | 1568 | } |
78589e07 | 1569 | else |
ab6ee1a0 | 1570 | { |
78589e07 | 1571 | if (pane == -1) |
ab6ee1a0 | 1572 | { |
78589e07 | 1573 | if (selidx == 0) |
ab6ee1a0 | 1574 | { |
78589e07 RS |
1575 | entry |
1576 | = XVECTOR (menu_items)->contents[i + MENU_ITEMS_ITEM_VALUE]; | |
1577 | if (keymaps != 0) | |
ab6ee1a0 | 1578 | { |
78589e07 RS |
1579 | entry = Fcons (entry, Qnil); |
1580 | if (!NILP (pane_prefix)) | |
1581 | entry = Fcons (pane_prefix, entry); | |
ab6ee1a0 | 1582 | } |
78589e07 | 1583 | break; |
ab6ee1a0 | 1584 | } |
78589e07 | 1585 | selidx--; |
ab6ee1a0 | 1586 | } |
78589e07 | 1587 | i += MENU_ITEMS_ITEM_LENGTH; |
ab6ee1a0 RS |
1588 | } |
1589 | } | |
78589e07 | 1590 | break; |
dcfdbac7 | 1591 | |
78589e07 RS |
1592 | case XM_FAILURE: |
1593 | XMenuDestroy (XDISPLAY menu); | |
1594 | *error = "Can't activate menu"; | |
1595 | case XM_IA_SELECT: | |
1596 | case XM_NO_SELECT: | |
1597 | entry = Qnil; | |
1598 | break; | |
dcfdbac7 | 1599 | } |
78589e07 RS |
1600 | XMenuDestroy (XDISPLAY menu); |
1601 | return entry; | |
dcfdbac7 | 1602 | } |
78589e07 | 1603 | #endif /* not USE_X_TOOLKIT */ |
088831f6 | 1604 | \f |
78589e07 | 1605 | syms_of_xmenu () |
dcfdbac7 | 1606 | { |
78589e07 RS |
1607 | staticpro (&menu_items); |
1608 | menu_items = Qnil; | |
dcfdbac7 | 1609 | |
78589e07 RS |
1610 | popup_id_tick = (1<<16); |
1611 | defsubr (&Sx_popup_menu); | |
dcfdbac7 | 1612 | } |