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279a1d4b CY |
1 | /* Platform-independent code for terminal communications. |
2 | Copyright (C) 1986, 1988, 1993, 1994, 1996, 1999, 2000, 2001, 2002, 2003, | |
114f9c96 | 3 | 2004, 2005, 2006, 2007, 2008, 2009, 2010 Free Software Foundation, Inc. |
279a1d4b CY |
4 | |
5 | This file is part of GNU Emacs. | |
6 | ||
7 | GNU Emacs is free software: you can redistribute it and/or modify | |
8 | it under the terms of the GNU General Public License as published by | |
9 | the Free Software Foundation, either version 3 of the License, or | |
10 | (at your option) any later version. | |
11 | ||
12 | GNU Emacs is distributed in the hope that it will be useful, | |
13 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
15 | GNU General Public License for more details. | |
16 | ||
17 | You should have received a copy of the GNU General Public License | |
18 | along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>. */ | |
19 | ||
20 | #include <config.h> | |
21 | #include <stdio.h> | |
d7306fe6 | 22 | #include <setjmp.h> |
279a1d4b CY |
23 | |
24 | #include "lisp.h" | |
25 | #include "keyboard.h" | |
26 | #include "keymap.h" | |
27 | #include "frame.h" | |
ef7417fd | 28 | #include "window.h" |
279a1d4b CY |
29 | #include "termhooks.h" |
30 | #include "blockinput.h" | |
31 | #include "dispextern.h" | |
32 | ||
33 | #ifdef USE_X_TOOLKIT | |
34 | #include "../lwlib/lwlib.h" | |
35 | #endif | |
36 | ||
a4240420 AS |
37 | #ifdef HAVE_X_WINDOWS |
38 | #include "xterm.h" | |
39 | #endif | |
40 | ||
edfda783 AR |
41 | #ifdef HAVE_NS |
42 | #include "nsterm.h" | |
43 | #endif | |
44 | ||
279a1d4b CY |
45 | #ifdef USE_GTK |
46 | #include "gtkutil.h" | |
47 | #endif | |
48 | ||
49 | #ifdef HAVE_NTGUI | |
a8495745 | 50 | #include "w32term.h" |
279a1d4b | 51 | |
279a1d4b | 52 | extern AppendMenuW_Proc unicode_append_menu; |
04e452cb | 53 | extern HMENU current_popup_menu; |
279a1d4b CY |
54 | |
55 | #endif /* HAVE_NTGUI */ | |
56 | ||
e7c9048f | 57 | #include "menu.h" |
279a1d4b CY |
58 | |
59 | /* Define HAVE_BOXES if menus can handle radio and toggle buttons. */ | |
60 | #if defined (USE_X_TOOLKIT) || defined (USE_GTK) || defined (HAVE_NTGUI) | |
61 | #define HAVE_BOXES 1 | |
62 | #endif | |
63 | ||
a6d676d9 CY |
64 | /* The timestamp of the last input event Emacs received from the X server. */ |
65 | /* Defined in keyboard.c. */ | |
66 | extern unsigned long last_event_timestamp; | |
67 | ||
279a1d4b CY |
68 | extern Lisp_Object QCtoggle, QCradio; |
69 | ||
70 | Lisp_Object menu_items; | |
71 | ||
72 | /* If non-nil, means that the global vars defined here are already in use. | |
73 | Used to detect cases where we try to re-enter this non-reentrant code. */ | |
74 | Lisp_Object menu_items_inuse; | |
75 | ||
76 | /* Number of slots currently allocated in menu_items. */ | |
77 | int menu_items_allocated; | |
78 | ||
79 | /* This is the index in menu_items of the first empty slot. */ | |
80 | int menu_items_used; | |
81 | ||
82 | /* The number of panes currently recorded in menu_items, | |
83 | excluding those within submenus. */ | |
84 | int menu_items_n_panes; | |
85 | ||
86 | /* Current depth within submenus. */ | |
87 | static int menu_items_submenu_depth; | |
88 | ||
89 | void | |
971de7fb | 90 | init_menu_items (void) |
279a1d4b CY |
91 | { |
92 | if (!NILP (menu_items_inuse)) | |
93 | error ("Trying to use a menu from within a menu-entry"); | |
94 | ||
95 | if (NILP (menu_items)) | |
96 | { | |
97 | menu_items_allocated = 60; | |
98 | menu_items = Fmake_vector (make_number (menu_items_allocated), Qnil); | |
99 | } | |
100 | ||
101 | menu_items_inuse = Qt; | |
102 | menu_items_used = 0; | |
103 | menu_items_n_panes = 0; | |
104 | menu_items_submenu_depth = 0; | |
105 | } | |
106 | ||
107 | /* Call at the end of generating the data in menu_items. */ | |
108 | ||
109 | void | |
971de7fb | 110 | finish_menu_items (void) |
279a1d4b CY |
111 | { |
112 | } | |
113 | ||
114 | Lisp_Object | |
971de7fb | 115 | unuse_menu_items (Lisp_Object dummy) |
279a1d4b CY |
116 | { |
117 | return menu_items_inuse = Qnil; | |
118 | } | |
119 | ||
120 | /* Call when finished using the data for the current menu | |
121 | in menu_items. */ | |
122 | ||
123 | void | |
971de7fb | 124 | discard_menu_items (void) |
279a1d4b CY |
125 | { |
126 | /* Free the structure if it is especially large. | |
127 | Otherwise, hold on to it, to save time. */ | |
128 | if (menu_items_allocated > 200) | |
129 | { | |
130 | menu_items = Qnil; | |
131 | menu_items_allocated = 0; | |
132 | } | |
133 | xassert (NILP (menu_items_inuse)); | |
134 | } | |
135 | ||
ef7417fd SM |
136 | static Lisp_Object |
137 | cleanup_popup_menu (Lisp_Object arg) | |
138 | { | |
139 | discard_menu_items (); | |
140 | return Qnil; | |
141 | } | |
142 | ||
279a1d4b CY |
143 | /* This undoes save_menu_items, and it is called by the specpdl unwind |
144 | mechanism. */ | |
145 | ||
146 | static Lisp_Object | |
971de7fb | 147 | restore_menu_items (Lisp_Object saved) |
279a1d4b CY |
148 | { |
149 | menu_items = XCAR (saved); | |
150 | menu_items_inuse = (! NILP (menu_items) ? Qt : Qnil); | |
151 | menu_items_allocated = (VECTORP (menu_items) ? ASIZE (menu_items) : 0); | |
152 | saved = XCDR (saved); | |
153 | menu_items_used = XINT (XCAR (saved)); | |
154 | saved = XCDR (saved); | |
155 | menu_items_n_panes = XINT (XCAR (saved)); | |
156 | saved = XCDR (saved); | |
157 | menu_items_submenu_depth = XINT (XCAR (saved)); | |
158 | return Qnil; | |
159 | } | |
160 | ||
161 | /* Push the whole state of menu_items processing onto the specpdl. | |
162 | It will be restored when the specpdl is unwound. */ | |
163 | ||
164 | void | |
971de7fb | 165 | save_menu_items (void) |
279a1d4b CY |
166 | { |
167 | Lisp_Object saved = list4 (!NILP (menu_items_inuse) ? menu_items : Qnil, | |
168 | make_number (menu_items_used), | |
169 | make_number (menu_items_n_panes), | |
170 | make_number (menu_items_submenu_depth)); | |
171 | record_unwind_protect (restore_menu_items, saved); | |
172 | menu_items_inuse = Qnil; | |
173 | menu_items = Qnil; | |
174 | } | |
175 | ||
176 | \f | |
177 | /* Make the menu_items vector twice as large. */ | |
178 | ||
179 | static void | |
971de7fb | 180 | grow_menu_items (void) |
279a1d4b CY |
181 | { |
182 | menu_items_allocated *= 2; | |
183 | menu_items = larger_vector (menu_items, menu_items_allocated, Qnil); | |
184 | } | |
185 | ||
186 | /* Begin a submenu. */ | |
187 | ||
188 | static void | |
971de7fb | 189 | push_submenu_start (void) |
279a1d4b CY |
190 | { |
191 | if (menu_items_used + 1 > menu_items_allocated) | |
192 | grow_menu_items (); | |
193 | ||
194 | XVECTOR (menu_items)->contents[menu_items_used++] = Qnil; | |
195 | menu_items_submenu_depth++; | |
196 | } | |
197 | ||
198 | /* End a submenu. */ | |
199 | ||
200 | static void | |
971de7fb | 201 | push_submenu_end (void) |
279a1d4b CY |
202 | { |
203 | if (menu_items_used + 1 > menu_items_allocated) | |
204 | grow_menu_items (); | |
205 | ||
206 | XVECTOR (menu_items)->contents[menu_items_used++] = Qlambda; | |
207 | menu_items_submenu_depth--; | |
208 | } | |
209 | ||
210 | /* Indicate boundary between left and right. */ | |
211 | ||
212 | static void | |
971de7fb | 213 | push_left_right_boundary (void) |
279a1d4b CY |
214 | { |
215 | if (menu_items_used + 1 > menu_items_allocated) | |
216 | grow_menu_items (); | |
217 | ||
218 | XVECTOR (menu_items)->contents[menu_items_used++] = Qquote; | |
219 | } | |
220 | ||
221 | /* Start a new menu pane in menu_items. | |
222 | NAME is the pane name. PREFIX_VEC is a prefix key for this pane. */ | |
223 | ||
593c843c | 224 | static void |
971de7fb | 225 | push_menu_pane (Lisp_Object name, Lisp_Object prefix_vec) |
279a1d4b CY |
226 | { |
227 | if (menu_items_used + MENU_ITEMS_PANE_LENGTH > menu_items_allocated) | |
228 | grow_menu_items (); | |
229 | ||
230 | if (menu_items_submenu_depth == 0) | |
231 | menu_items_n_panes++; | |
232 | XVECTOR (menu_items)->contents[menu_items_used++] = Qt; | |
233 | XVECTOR (menu_items)->contents[menu_items_used++] = name; | |
234 | XVECTOR (menu_items)->contents[menu_items_used++] = prefix_vec; | |
235 | } | |
236 | ||
237 | /* Push one menu item into the current pane. NAME is the string to | |
238 | display. ENABLE if non-nil means this item can be selected. KEY | |
239 | is the key generated by choosing this item, or nil if this item | |
240 | doesn't really have a definition. DEF is the definition of this | |
241 | item. EQUIV is the textual description of the keyboard equivalent | |
242 | for this item (or nil if none). TYPE is the type of this menu | |
243 | item, one of nil, `toggle' or `radio'. */ | |
244 | ||
593c843c | 245 | static void |
971de7fb | 246 | push_menu_item (Lisp_Object name, Lisp_Object enable, Lisp_Object key, Lisp_Object def, Lisp_Object equiv, Lisp_Object type, Lisp_Object selected, Lisp_Object help) |
279a1d4b CY |
247 | { |
248 | if (menu_items_used + MENU_ITEMS_ITEM_LENGTH > menu_items_allocated) | |
249 | grow_menu_items (); | |
250 | ||
b7c7a4d1 SM |
251 | ASET (menu_items, menu_items_used + MENU_ITEMS_ITEM_NAME, name); |
252 | ASET (menu_items, menu_items_used + MENU_ITEMS_ITEM_ENABLE, enable); | |
253 | ASET (menu_items, menu_items_used + MENU_ITEMS_ITEM_VALUE, key); | |
254 | ASET (menu_items, menu_items_used + MENU_ITEMS_ITEM_EQUIV_KEY, equiv); | |
255 | ASET (menu_items, menu_items_used + MENU_ITEMS_ITEM_DEFINITION, def); | |
256 | ASET (menu_items, menu_items_used + MENU_ITEMS_ITEM_TYPE, type); | |
257 | ASET (menu_items, menu_items_used + MENU_ITEMS_ITEM_SELECTED, selected); | |
258 | ASET (menu_items, menu_items_used + MENU_ITEMS_ITEM_HELP, help); | |
259 | ||
260 | menu_items_used += MENU_ITEMS_ITEM_LENGTH; | |
279a1d4b CY |
261 | } |
262 | ||
263 | /* Args passed between single_keymap_panes and single_menu_item. */ | |
264 | struct skp | |
265 | { | |
266 | Lisp_Object pending_maps; | |
ef7417fd | 267 | int maxdepth; |
279a1d4b CY |
268 | int notbuttons; |
269 | }; | |
270 | ||
f57e2426 J |
271 | static void single_menu_item (Lisp_Object, Lisp_Object, Lisp_Object, |
272 | void *); | |
279a1d4b CY |
273 | |
274 | /* This is a recursive subroutine of keymap_panes. | |
275 | It handles one keymap, KEYMAP. | |
276 | The other arguments are passed along | |
277 | or point to local variables of the previous function. | |
279a1d4b CY |
278 | |
279 | If we encounter submenus deeper than MAXDEPTH levels, ignore them. */ | |
280 | ||
593c843c | 281 | static void |
ef7417fd SM |
282 | single_keymap_panes (Lisp_Object keymap, Lisp_Object pane_name, |
283 | Lisp_Object prefix, int maxdepth) | |
279a1d4b CY |
284 | { |
285 | struct skp skp; | |
286 | struct gcpro gcpro1; | |
287 | ||
288 | skp.pending_maps = Qnil; | |
289 | skp.maxdepth = maxdepth; | |
279a1d4b CY |
290 | skp.notbuttons = 0; |
291 | ||
292 | if (maxdepth <= 0) | |
293 | return; | |
294 | ||
295 | push_menu_pane (pane_name, prefix); | |
296 | ||
297 | #ifndef HAVE_BOXES | |
298 | /* Remember index for first item in this pane so we can go back and | |
299 | add a prefix when (if) we see the first button. After that, notbuttons | |
300 | is set to 0, to mark that we have seen a button and all non button | |
301 | items need a prefix. */ | |
302 | skp.notbuttons = menu_items_used; | |
303 | #endif | |
304 | ||
305 | GCPRO1 (skp.pending_maps); | |
306 | map_keymap_canonical (keymap, single_menu_item, Qnil, &skp); | |
307 | UNGCPRO; | |
308 | ||
309 | /* Process now any submenus which want to be panes at this level. */ | |
310 | while (CONSP (skp.pending_maps)) | |
311 | { | |
312 | Lisp_Object elt, eltcdr, string; | |
313 | elt = XCAR (skp.pending_maps); | |
314 | eltcdr = XCDR (elt); | |
315 | string = XCAR (eltcdr); | |
316 | /* We no longer discard the @ from the beginning of the string here. | |
317 | Instead, we do this in *menu_show. */ | |
ef7417fd | 318 | single_keymap_panes (Fcar (elt), string, XCDR (eltcdr), maxdepth - 1); |
279a1d4b CY |
319 | skp.pending_maps = XCDR (skp.pending_maps); |
320 | } | |
321 | } | |
322 | ||
323 | /* This is a subroutine of single_keymap_panes that handles one | |
324 | keymap entry. | |
325 | KEY is a key in a keymap and ITEM is its binding. | |
326 | SKP->PENDING_MAPS_PTR is a list of keymaps waiting to be made into | |
327 | separate panes. | |
279a1d4b CY |
328 | If we encounter submenus deeper than SKP->MAXDEPTH levels, ignore them. */ |
329 | ||
330 | static void | |
971de7fb | 331 | single_menu_item (Lisp_Object key, Lisp_Object item, Lisp_Object dummy, void *skp_v) |
279a1d4b CY |
332 | { |
333 | Lisp_Object map, item_string, enabled; | |
334 | struct gcpro gcpro1, gcpro2; | |
335 | int res; | |
336 | struct skp *skp = skp_v; | |
337 | ||
338 | /* Parse the menu item and leave the result in item_properties. */ | |
339 | GCPRO2 (key, item); | |
ef7417fd | 340 | res = parse_menu_item (item, 0); |
279a1d4b CY |
341 | UNGCPRO; |
342 | if (!res) | |
343 | return; /* Not a menu item. */ | |
344 | ||
345 | map = XVECTOR (item_properties)->contents[ITEM_PROPERTY_MAP]; | |
346 | ||
279a1d4b CY |
347 | enabled = XVECTOR (item_properties)->contents[ITEM_PROPERTY_ENABLE]; |
348 | item_string = XVECTOR (item_properties)->contents[ITEM_PROPERTY_NAME]; | |
349 | ||
350 | if (!NILP (map) && SREF (item_string, 0) == '@') | |
351 | { | |
352 | if (!NILP (enabled)) | |
353 | /* An enabled separate pane. Remember this to handle it later. */ | |
354 | skp->pending_maps = Fcons (Fcons (map, Fcons (item_string, key)), | |
355 | skp->pending_maps); | |
356 | return; | |
357 | } | |
358 | ||
dda86321 | 359 | #if defined(HAVE_X_WINDOWS) || defined(MSDOS) |
279a1d4b CY |
360 | #ifndef HAVE_BOXES |
361 | /* Simulate radio buttons and toggle boxes by putting a prefix in | |
362 | front of them. */ | |
363 | { | |
364 | Lisp_Object prefix = Qnil; | |
365 | Lisp_Object type = XVECTOR (item_properties)->contents[ITEM_PROPERTY_TYPE]; | |
366 | if (!NILP (type)) | |
367 | { | |
368 | Lisp_Object selected | |
369 | = XVECTOR (item_properties)->contents[ITEM_PROPERTY_SELECTED]; | |
370 | ||
371 | if (skp->notbuttons) | |
372 | /* The first button. Line up previous items in this menu. */ | |
373 | { | |
374 | int index = skp->notbuttons; /* Index for first item this menu. */ | |
375 | int submenu = 0; | |
376 | Lisp_Object tem; | |
377 | while (index < menu_items_used) | |
378 | { | |
379 | tem | |
380 | = XVECTOR (menu_items)->contents[index + MENU_ITEMS_ITEM_NAME]; | |
381 | if (NILP (tem)) | |
382 | { | |
383 | index++; | |
384 | submenu++; /* Skip sub menu. */ | |
385 | } | |
386 | else if (EQ (tem, Qlambda)) | |
387 | { | |
388 | index++; | |
389 | submenu--; /* End sub menu. */ | |
390 | } | |
391 | else if (EQ (tem, Qt)) | |
392 | index += 3; /* Skip new pane marker. */ | |
393 | else if (EQ (tem, Qquote)) | |
394 | index++; /* Skip a left, right divider. */ | |
395 | else | |
396 | { | |
397 | if (!submenu && SREF (tem, 0) != '\0' | |
398 | && SREF (tem, 0) != '-') | |
399 | XVECTOR (menu_items)->contents[index + MENU_ITEMS_ITEM_NAME] | |
400 | = concat2 (build_string (" "), tem); | |
401 | index += MENU_ITEMS_ITEM_LENGTH; | |
402 | } | |
403 | } | |
404 | skp->notbuttons = 0; | |
405 | } | |
406 | ||
407 | /* Calculate prefix, if any, for this item. */ | |
408 | if (EQ (type, QCtoggle)) | |
409 | prefix = build_string (NILP (selected) ? "[ ] " : "[X] "); | |
410 | else if (EQ (type, QCradio)) | |
411 | prefix = build_string (NILP (selected) ? "( ) " : "(*) "); | |
412 | } | |
413 | /* Not a button. If we have earlier buttons, then we need a prefix. */ | |
414 | else if (!skp->notbuttons && SREF (item_string, 0) != '\0' | |
415 | && SREF (item_string, 0) != '-') | |
416 | prefix = build_string (" "); | |
417 | ||
418 | if (!NILP (prefix)) | |
419 | item_string = concat2 (prefix, item_string); | |
420 | } | |
421 | #endif /* not HAVE_BOXES */ | |
422 | ||
423 | #if ! defined (USE_X_TOOLKIT) && ! defined (USE_GTK) | |
424 | if (!NILP (map)) | |
425 | /* Indicate visually that this is a submenu. */ | |
426 | item_string = concat2 (item_string, build_string (" >")); | |
427 | #endif | |
428 | ||
dda86321 | 429 | #endif /* HAVE_X_WINDOWS || MSDOS */ |
279a1d4b CY |
430 | |
431 | push_menu_item (item_string, enabled, key, | |
432 | XVECTOR (item_properties)->contents[ITEM_PROPERTY_DEF], | |
433 | XVECTOR (item_properties)->contents[ITEM_PROPERTY_KEYEQ], | |
434 | XVECTOR (item_properties)->contents[ITEM_PROPERTY_TYPE], | |
435 | XVECTOR (item_properties)->contents[ITEM_PROPERTY_SELECTED], | |
436 | XVECTOR (item_properties)->contents[ITEM_PROPERTY_HELP]); | |
437 | ||
edfda783 | 438 | #if defined (USE_X_TOOLKIT) || defined (USE_GTK) || defined (HAVE_NS) || defined (HAVE_NTGUI) |
279a1d4b CY |
439 | /* Display a submenu using the toolkit. */ |
440 | if (! (NILP (map) || NILP (enabled))) | |
441 | { | |
442 | push_submenu_start (); | |
ef7417fd | 443 | single_keymap_panes (map, Qnil, key, skp->maxdepth - 1); |
279a1d4b CY |
444 | push_submenu_end (); |
445 | } | |
446 | #endif | |
447 | } | |
448 | ||
449 | /* Look through KEYMAPS, a vector of keymaps that is NMAPS long, | |
ef7417fd | 450 | and generate menu panes for them in menu_items. */ |
279a1d4b | 451 | |
ef7417fd | 452 | static void |
971de7fb | 453 | keymap_panes (Lisp_Object *keymaps, int nmaps) |
279a1d4b CY |
454 | { |
455 | int mapno; | |
456 | ||
457 | init_menu_items (); | |
458 | ||
459 | /* Loop over the given keymaps, making a pane for each map. | |
460 | But don't make a pane that is empty--ignore that map instead. | |
461 | P is the number of panes we have made so far. */ | |
462 | for (mapno = 0; mapno < nmaps; mapno++) | |
463 | single_keymap_panes (keymaps[mapno], | |
ef7417fd | 464 | Fkeymap_prompt (keymaps[mapno]), Qnil, 10); |
279a1d4b CY |
465 | |
466 | finish_menu_items (); | |
467 | } | |
468 | ||
469 | ||
470 | /* Push the items in a single pane defined by the alist PANE. */ | |
471 | static void | |
971de7fb | 472 | list_of_items (Lisp_Object pane) |
279a1d4b CY |
473 | { |
474 | Lisp_Object tail, item, item1; | |
475 | ||
476 | for (tail = pane; CONSP (tail); tail = XCDR (tail)) | |
477 | { | |
478 | item = XCAR (tail); | |
479 | if (STRINGP (item)) | |
480 | push_menu_item (ENCODE_MENU_STRING (item), Qnil, Qnil, Qt, | |
481 | Qnil, Qnil, Qnil, Qnil); | |
482 | else if (CONSP (item)) | |
483 | { | |
484 | item1 = XCAR (item); | |
485 | CHECK_STRING (item1); | |
486 | push_menu_item (ENCODE_MENU_STRING (item1), Qt, XCDR (item), | |
487 | Qt, Qnil, Qnil, Qnil, Qnil); | |
488 | } | |
489 | else | |
490 | push_left_right_boundary (); | |
491 | ||
492 | } | |
493 | } | |
494 | ||
495 | /* Push all the panes and items of a menu described by the | |
496 | alist-of-alists MENU. | |
497 | This handles old-fashioned calls to x-popup-menu. */ | |
498 | void | |
971de7fb | 499 | list_of_panes (Lisp_Object menu) |
279a1d4b CY |
500 | { |
501 | Lisp_Object tail; | |
502 | ||
503 | init_menu_items (); | |
504 | ||
505 | for (tail = menu; CONSP (tail); tail = XCDR (tail)) | |
506 | { | |
507 | Lisp_Object elt, pane_name, pane_data; | |
508 | elt = XCAR (tail); | |
509 | pane_name = Fcar (elt); | |
510 | CHECK_STRING (pane_name); | |
511 | push_menu_pane (ENCODE_MENU_STRING (pane_name), Qnil); | |
512 | pane_data = Fcdr (elt); | |
513 | CHECK_CONS (pane_data); | |
514 | list_of_items (pane_data); | |
515 | } | |
516 | ||
517 | finish_menu_items (); | |
518 | } | |
519 | ||
520 | /* Set up data in menu_items for a menu bar item | |
521 | whose event type is ITEM_KEY (with string ITEM_NAME) | |
522 | and whose contents come from the list of keymaps MAPS. */ | |
523 | int | |
971de7fb | 524 | parse_single_submenu (Lisp_Object item_key, Lisp_Object item_name, Lisp_Object maps) |
279a1d4b CY |
525 | { |
526 | Lisp_Object length; | |
527 | int len; | |
528 | Lisp_Object *mapvec; | |
529 | int i; | |
530 | int top_level_items = 0; | |
531 | ||
532 | length = Flength (maps); | |
533 | len = XINT (length); | |
534 | ||
535 | /* Convert the list MAPS into a vector MAPVEC. */ | |
536 | mapvec = (Lisp_Object *) alloca (len * sizeof (Lisp_Object)); | |
537 | for (i = 0; i < len; i++) | |
538 | { | |
539 | mapvec[i] = Fcar (maps); | |
540 | maps = Fcdr (maps); | |
541 | } | |
542 | ||
543 | /* Loop over the given keymaps, making a pane for each map. | |
544 | But don't make a pane that is empty--ignore that map instead. */ | |
545 | for (i = 0; i < len; i++) | |
546 | { | |
547 | if (!KEYMAPP (mapvec[i])) | |
548 | { | |
549 | /* Here we have a command at top level in the menu bar | |
550 | as opposed to a submenu. */ | |
551 | top_level_items = 1; | |
552 | push_menu_pane (Qnil, Qnil); | |
553 | push_menu_item (item_name, Qt, item_key, mapvec[i], | |
554 | Qnil, Qnil, Qnil, Qnil); | |
555 | } | |
556 | else | |
557 | { | |
558 | Lisp_Object prompt; | |
559 | prompt = Fkeymap_prompt (mapvec[i]); | |
560 | single_keymap_panes (mapvec[i], | |
561 | !NILP (prompt) ? prompt : item_name, | |
ef7417fd | 562 | item_key, 10); |
279a1d4b CY |
563 | } |
564 | } | |
565 | ||
566 | return top_level_items; | |
567 | } | |
568 | ||
569 | \f | |
edfda783 | 570 | #if defined (USE_X_TOOLKIT) || defined (USE_GTK) || defined (HAVE_NS) || defined (HAVE_NTGUI) |
279a1d4b CY |
571 | |
572 | /* Allocate a widget_value, blocking input. */ | |
573 | ||
574 | widget_value * | |
971de7fb | 575 | xmalloc_widget_value (void) |
279a1d4b CY |
576 | { |
577 | widget_value *value; | |
578 | ||
579 | BLOCK_INPUT; | |
580 | value = malloc_widget_value (); | |
581 | UNBLOCK_INPUT; | |
582 | ||
583 | return value; | |
584 | } | |
585 | ||
586 | /* This recursively calls free_widget_value on the tree of widgets. | |
587 | It must free all data that was malloc'ed for these widget_values. | |
588 | In Emacs, many slots are pointers into the data of Lisp_Strings, and | |
589 | must be left alone. */ | |
590 | ||
591 | void | |
971de7fb | 592 | free_menubar_widget_value_tree (widget_value *wv) |
279a1d4b CY |
593 | { |
594 | if (! wv) return; | |
595 | ||
596 | wv->name = wv->value = wv->key = (char *) 0xDEADBEEF; | |
597 | ||
598 | if (wv->contents && (wv->contents != (widget_value*)1)) | |
599 | { | |
600 | free_menubar_widget_value_tree (wv->contents); | |
601 | wv->contents = (widget_value *) 0xDEADBEEF; | |
602 | } | |
603 | if (wv->next) | |
604 | { | |
605 | free_menubar_widget_value_tree (wv->next); | |
606 | wv->next = (widget_value *) 0xDEADBEEF; | |
607 | } | |
608 | BLOCK_INPUT; | |
609 | free_widget_value (wv); | |
610 | UNBLOCK_INPUT; | |
611 | } | |
612 | ||
613 | /* Create a tree of widget_value objects | |
614 | representing the panes and items | |
615 | in menu_items starting at index START, up to index END. */ | |
616 | ||
617 | widget_value * | |
971de7fb | 618 | digest_single_submenu (int start, int end, int top_level_items) |
279a1d4b CY |
619 | { |
620 | widget_value *wv, *prev_wv, *save_wv, *first_wv; | |
621 | int i; | |
622 | int submenu_depth = 0; | |
623 | widget_value **submenu_stack; | |
624 | int panes_seen = 0; | |
625 | ||
626 | submenu_stack | |
627 | = (widget_value **) alloca (menu_items_used * sizeof (widget_value *)); | |
628 | wv = xmalloc_widget_value (); | |
629 | wv->name = "menu"; | |
630 | wv->value = 0; | |
631 | wv->enabled = 1; | |
632 | wv->button_type = BUTTON_TYPE_NONE; | |
633 | wv->help = Qnil; | |
634 | first_wv = wv; | |
635 | save_wv = 0; | |
636 | prev_wv = 0; | |
637 | ||
638 | /* Loop over all panes and items made by the preceding call | |
639 | to parse_single_submenu and construct a tree of widget_value objects. | |
640 | Ignore the panes and items used by previous calls to | |
641 | digest_single_submenu, even though those are also in menu_items. */ | |
642 | i = start; | |
643 | while (i < end) | |
644 | { | |
645 | if (EQ (XVECTOR (menu_items)->contents[i], Qnil)) | |
646 | { | |
647 | submenu_stack[submenu_depth++] = save_wv; | |
648 | save_wv = prev_wv; | |
649 | prev_wv = 0; | |
650 | i++; | |
651 | } | |
652 | else if (EQ (XVECTOR (menu_items)->contents[i], Qlambda)) | |
653 | { | |
654 | prev_wv = save_wv; | |
655 | save_wv = submenu_stack[--submenu_depth]; | |
656 | i++; | |
657 | } | |
658 | else if (EQ (XVECTOR (menu_items)->contents[i], Qt) | |
659 | && submenu_depth != 0) | |
660 | i += MENU_ITEMS_PANE_LENGTH; | |
661 | /* Ignore a nil in the item list. | |
662 | It's meaningful only for dialog boxes. */ | |
663 | else if (EQ (XVECTOR (menu_items)->contents[i], Qquote)) | |
664 | i += 1; | |
665 | else if (EQ (XVECTOR (menu_items)->contents[i], Qt)) | |
666 | { | |
667 | /* Create a new pane. */ | |
668 | Lisp_Object pane_name, prefix; | |
669 | char *pane_string; | |
670 | ||
671 | panes_seen++; | |
672 | ||
673 | pane_name = XVECTOR (menu_items)->contents[i + MENU_ITEMS_PANE_NAME]; | |
674 | prefix = XVECTOR (menu_items)->contents[i + MENU_ITEMS_PANE_PREFIX]; | |
675 | ||
676 | #ifdef HAVE_NTGUI | |
677 | if (STRINGP (pane_name)) | |
678 | { | |
679 | if (unicode_append_menu) | |
680 | /* Encode as UTF-8 for now. */ | |
681 | pane_name = ENCODE_UTF_8 (pane_name); | |
682 | else if (STRING_MULTIBYTE (pane_name)) | |
683 | pane_name = ENCODE_SYSTEM (pane_name); | |
684 | ||
685 | ASET (menu_items, i + MENU_ITEMS_PANE_NAME, pane_name); | |
686 | } | |
99852628 JD |
687 | #elif defined (USE_LUCID) && defined (HAVE_XFT) |
688 | if (STRINGP (pane_name)) | |
689 | { | |
690 | pane_name = ENCODE_UTF_8 (pane_name); | |
691 | ASET (menu_items, i + MENU_ITEMS_PANE_NAME, pane_name); | |
692 | } | |
279a1d4b CY |
693 | #elif !defined (HAVE_MULTILINGUAL_MENU) |
694 | if (STRINGP (pane_name) && STRING_MULTIBYTE (pane_name)) | |
695 | { | |
696 | pane_name = ENCODE_MENU_STRING (pane_name); | |
697 | ASET (menu_items, i + MENU_ITEMS_PANE_NAME, pane_name); | |
698 | } | |
699 | #endif | |
700 | ||
701 | pane_string = (NILP (pane_name) | |
702 | ? "" : (char *) SDATA (pane_name)); | |
703 | /* If there is just one top-level pane, put all its items directly | |
704 | under the top-level menu. */ | |
705 | if (menu_items_n_panes == 1) | |
706 | pane_string = ""; | |
707 | ||
708 | /* If the pane has a meaningful name, | |
709 | make the pane a top-level menu item | |
710 | with its items as a submenu beneath it. */ | |
711 | if (strcmp (pane_string, "")) | |
712 | { | |
713 | wv = xmalloc_widget_value (); | |
714 | if (save_wv) | |
715 | save_wv->next = wv; | |
716 | else | |
717 | first_wv->contents = wv; | |
718 | wv->lname = pane_name; | |
719 | /* Set value to 1 so update_submenu_strings can handle '@' */ | |
720 | wv->value = (char *)1; | |
721 | wv->enabled = 1; | |
722 | wv->button_type = BUTTON_TYPE_NONE; | |
723 | wv->help = Qnil; | |
724 | save_wv = wv; | |
725 | } | |
726 | else | |
727 | save_wv = first_wv; | |
728 | ||
729 | prev_wv = 0; | |
730 | i += MENU_ITEMS_PANE_LENGTH; | |
731 | } | |
732 | else | |
733 | { | |
734 | /* Create a new item within current pane. */ | |
735 | Lisp_Object item_name, enable, descrip, def, type, selected; | |
736 | Lisp_Object help; | |
737 | ||
738 | /* All items should be contained in panes. */ | |
739 | if (panes_seen == 0) | |
740 | abort (); | |
741 | ||
742 | item_name = AREF (menu_items, i + MENU_ITEMS_ITEM_NAME); | |
743 | enable = AREF (menu_items, i + MENU_ITEMS_ITEM_ENABLE); | |
744 | descrip = AREF (menu_items, i + MENU_ITEMS_ITEM_EQUIV_KEY); | |
745 | def = AREF (menu_items, i + MENU_ITEMS_ITEM_DEFINITION); | |
746 | type = AREF (menu_items, i + MENU_ITEMS_ITEM_TYPE); | |
747 | selected = AREF (menu_items, i + MENU_ITEMS_ITEM_SELECTED); | |
748 | help = AREF (menu_items, i + MENU_ITEMS_ITEM_HELP); | |
749 | ||
750 | #ifdef HAVE_NTGUI | |
751 | if (STRINGP (item_name)) | |
752 | { | |
753 | if (unicode_append_menu) | |
754 | item_name = ENCODE_UTF_8 (item_name); | |
755 | else if (STRING_MULTIBYTE (item_name)) | |
756 | item_name = ENCODE_SYSTEM (item_name); | |
757 | ||
758 | ASET (menu_items, i + MENU_ITEMS_ITEM_NAME, item_name); | |
759 | } | |
760 | ||
761 | if (STRINGP (descrip) && STRING_MULTIBYTE (descrip)) | |
762 | { | |
763 | descrip = ENCODE_SYSTEM (descrip); | |
764 | ASET (menu_items, i + MENU_ITEMS_ITEM_EQUIV_KEY, descrip); | |
765 | } | |
99852628 JD |
766 | #elif USE_LUCID |
767 | if (STRINGP (item_name)) | |
768 | { | |
769 | item_name = ENCODE_UTF_8 (item_name); | |
770 | ASET (menu_items, i + MENU_ITEMS_ITEM_NAME, item_name); | |
771 | } | |
772 | ||
773 | if (STRINGP (descrip)) | |
774 | { | |
775 | descrip = ENCODE_UTF_8 (descrip); | |
776 | ASET (menu_items, i + MENU_ITEMS_ITEM_EQUIV_KEY, descrip); | |
777 | } | |
279a1d4b CY |
778 | #elif !defined (HAVE_MULTILINGUAL_MENU) |
779 | if (STRING_MULTIBYTE (item_name)) | |
780 | { | |
781 | item_name = ENCODE_MENU_STRING (item_name); | |
782 | ASET (menu_items, i + MENU_ITEMS_ITEM_NAME, item_name); | |
783 | } | |
784 | ||
785 | if (STRINGP (descrip) && STRING_MULTIBYTE (descrip)) | |
786 | { | |
787 | descrip = ENCODE_MENU_STRING (descrip); | |
788 | ASET (menu_items, i + MENU_ITEMS_ITEM_EQUIV_KEY, descrip); | |
789 | } | |
790 | #endif | |
791 | ||
792 | wv = xmalloc_widget_value (); | |
793 | if (prev_wv) | |
794 | prev_wv->next = wv; | |
795 | else | |
796 | save_wv->contents = wv; | |
797 | ||
798 | wv->lname = item_name; | |
799 | if (!NILP (descrip)) | |
800 | wv->lkey = descrip; | |
801 | wv->value = 0; | |
802 | /* The EMACS_INT cast avoids a warning. There's no problem | |
803 | as long as pointers have enough bits to hold small integers. */ | |
804 | wv->call_data = (!NILP (def) ? (void *) (EMACS_INT) i : 0); | |
805 | wv->enabled = !NILP (enable); | |
806 | ||
807 | if (NILP (type)) | |
808 | wv->button_type = BUTTON_TYPE_NONE; | |
809 | else if (EQ (type, QCradio)) | |
810 | wv->button_type = BUTTON_TYPE_RADIO; | |
811 | else if (EQ (type, QCtoggle)) | |
812 | wv->button_type = BUTTON_TYPE_TOGGLE; | |
813 | else | |
814 | abort (); | |
815 | ||
816 | wv->selected = !NILP (selected); | |
817 | if (! STRINGP (help)) | |
818 | help = Qnil; | |
819 | ||
820 | wv->help = help; | |
821 | ||
822 | prev_wv = wv; | |
823 | ||
824 | i += MENU_ITEMS_ITEM_LENGTH; | |
825 | } | |
826 | } | |
827 | ||
828 | /* If we have just one "menu item" | |
829 | that was originally a button, return it by itself. */ | |
830 | if (top_level_items && first_wv->contents && first_wv->contents->next == 0) | |
831 | { | |
832 | wv = first_wv->contents; | |
833 | free_widget_value (first_wv); | |
834 | return wv; | |
835 | } | |
836 | ||
837 | return first_wv; | |
838 | } | |
839 | ||
840 | /* Walk through the widget_value tree starting at FIRST_WV and update | |
841 | the char * pointers from the corresponding lisp values. | |
842 | We do this after building the whole tree, since GC may happen while the | |
843 | tree is constructed, and small strings are relocated. So we must wait | |
844 | until no GC can happen before storing pointers into lisp values. */ | |
845 | void | |
971de7fb | 846 | update_submenu_strings (widget_value *first_wv) |
279a1d4b CY |
847 | { |
848 | widget_value *wv; | |
849 | ||
850 | for (wv = first_wv; wv; wv = wv->next) | |
851 | { | |
852 | if (STRINGP (wv->lname)) | |
853 | { | |
854 | wv->name = (char *) SDATA (wv->lname); | |
855 | ||
856 | /* Ignore the @ that means "separate pane". | |
857 | This is a kludge, but this isn't worth more time. */ | |
858 | if (wv->value == (char *)1) | |
859 | { | |
860 | if (wv->name[0] == '@') | |
861 | wv->name++; | |
862 | wv->value = 0; | |
863 | } | |
864 | } | |
865 | ||
866 | if (STRINGP (wv->lkey)) | |
867 | wv->key = (char *) SDATA (wv->lkey); | |
868 | ||
869 | if (wv->contents) | |
870 | update_submenu_strings (wv->contents); | |
871 | } | |
872 | } | |
873 | ||
874 | /* Find the menu selection and store it in the keyboard buffer. | |
875 | F is the frame the menu is on. | |
876 | MENU_BAR_ITEMS_USED is the length of VECTOR. | |
877 | VECTOR is an array of menu events for the whole menu. */ | |
878 | ||
879 | void | |
971de7fb | 880 | find_and_call_menu_selection (FRAME_PTR f, int menu_bar_items_used, Lisp_Object vector, void *client_data) |
279a1d4b CY |
881 | { |
882 | Lisp_Object prefix, entry; | |
883 | Lisp_Object *subprefix_stack; | |
884 | int submenu_depth = 0; | |
885 | int i; | |
886 | ||
887 | entry = Qnil; | |
888 | subprefix_stack = (Lisp_Object *) alloca (menu_bar_items_used * sizeof (Lisp_Object)); | |
889 | prefix = Qnil; | |
890 | i = 0; | |
891 | ||
892 | while (i < menu_bar_items_used) | |
893 | { | |
894 | if (EQ (XVECTOR (vector)->contents[i], Qnil)) | |
895 | { | |
896 | subprefix_stack[submenu_depth++] = prefix; | |
897 | prefix = entry; | |
898 | i++; | |
899 | } | |
900 | else if (EQ (XVECTOR (vector)->contents[i], Qlambda)) | |
901 | { | |
902 | prefix = subprefix_stack[--submenu_depth]; | |
903 | i++; | |
904 | } | |
905 | else if (EQ (XVECTOR (vector)->contents[i], Qt)) | |
906 | { | |
907 | prefix = XVECTOR (vector)->contents[i + MENU_ITEMS_PANE_PREFIX]; | |
908 | i += MENU_ITEMS_PANE_LENGTH; | |
909 | } | |
910 | else | |
911 | { | |
912 | entry = XVECTOR (vector)->contents[i + MENU_ITEMS_ITEM_VALUE]; | |
913 | /* The EMACS_INT cast avoids a warning. There's no problem | |
914 | as long as pointers have enough bits to hold small integers. */ | |
915 | if ((int) (EMACS_INT) client_data == i) | |
916 | { | |
917 | int j; | |
918 | struct input_event buf; | |
919 | Lisp_Object frame; | |
920 | EVENT_INIT (buf); | |
921 | ||
922 | XSETFRAME (frame, f); | |
923 | buf.kind = MENU_BAR_EVENT; | |
924 | buf.frame_or_window = frame; | |
925 | buf.arg = frame; | |
926 | kbd_buffer_store_event (&buf); | |
927 | ||
928 | for (j = 0; j < submenu_depth; j++) | |
929 | if (!NILP (subprefix_stack[j])) | |
930 | { | |
931 | buf.kind = MENU_BAR_EVENT; | |
932 | buf.frame_or_window = frame; | |
933 | buf.arg = subprefix_stack[j]; | |
934 | kbd_buffer_store_event (&buf); | |
935 | } | |
936 | ||
937 | if (!NILP (prefix)) | |
938 | { | |
939 | buf.kind = MENU_BAR_EVENT; | |
940 | buf.frame_or_window = frame; | |
941 | buf.arg = prefix; | |
942 | kbd_buffer_store_event (&buf); | |
943 | } | |
944 | ||
945 | buf.kind = MENU_BAR_EVENT; | |
946 | buf.frame_or_window = frame; | |
947 | buf.arg = entry; | |
948 | kbd_buffer_store_event (&buf); | |
949 | ||
950 | return; | |
951 | } | |
952 | i += MENU_ITEMS_ITEM_LENGTH; | |
953 | } | |
954 | } | |
955 | } | |
956 | ||
edfda783 AR |
957 | #endif /* USE_X_TOOLKIT || USE_GTK || HAVE_NS || HAVE_NTGUI */ |
958 | ||
959 | #ifdef HAVE_NS | |
960 | /* As above, but return the menu selection instead of storing in kb buffer. | |
961 | If keymaps==1, return full prefixes to selection. */ | |
962 | Lisp_Object | |
963 | find_and_return_menu_selection (FRAME_PTR f, int keymaps, void *client_data) | |
964 | { | |
965 | Lisp_Object prefix, entry; | |
966 | int i; | |
967 | Lisp_Object *subprefix_stack; | |
968 | int submenu_depth = 0; | |
969 | ||
970 | prefix = entry = Qnil; | |
971 | i = 0; | |
972 | subprefix_stack = | |
973 | (Lisp_Object *)alloca(menu_items_used * sizeof (Lisp_Object)); | |
974 | ||
975 | while (i < menu_items_used) | |
976 | { | |
977 | if (EQ (XVECTOR (menu_items)->contents[i], Qnil)) | |
978 | { | |
979 | subprefix_stack[submenu_depth++] = prefix; | |
980 | prefix = entry; | |
981 | i++; | |
982 | } | |
983 | else if (EQ (XVECTOR (menu_items)->contents[i], Qlambda)) | |
984 | { | |
985 | prefix = subprefix_stack[--submenu_depth]; | |
986 | i++; | |
987 | } | |
988 | else if (EQ (XVECTOR (menu_items)->contents[i], Qt)) | |
989 | { | |
990 | prefix | |
991 | = XVECTOR (menu_items)->contents[i + MENU_ITEMS_PANE_PREFIX]; | |
992 | i += MENU_ITEMS_PANE_LENGTH; | |
993 | } | |
994 | /* Ignore a nil in the item list. | |
995 | It's meaningful only for dialog boxes. */ | |
996 | else if (EQ (XVECTOR (menu_items)->contents[i], Qquote)) | |
997 | i += 1; | |
998 | else | |
999 | { | |
1000 | entry | |
1001 | = XVECTOR (menu_items)->contents[i + MENU_ITEMS_ITEM_VALUE]; | |
31c2d412 | 1002 | if ((EMACS_INT)client_data == (EMACS_INT)(&XVECTOR (menu_items)->contents[i])) |
edfda783 AR |
1003 | { |
1004 | if (keymaps != 0) | |
1005 | { | |
1006 | int j; | |
1007 | ||
1008 | entry = Fcons (entry, Qnil); | |
1009 | if (!NILP (prefix)) | |
1010 | entry = Fcons (prefix, entry); | |
1011 | for (j = submenu_depth - 1; j >= 0; j--) | |
1012 | if (!NILP (subprefix_stack[j])) | |
1013 | entry = Fcons (subprefix_stack[j], entry); | |
1014 | } | |
1015 | return entry; | |
1016 | } | |
1017 | i += MENU_ITEMS_ITEM_LENGTH; | |
1018 | } | |
1019 | } | |
facfbbbd | 1020 | return Qnil; |
edfda783 | 1021 | } |
31c2d412 | 1022 | #endif /* HAVE_NS */ |
279a1d4b | 1023 | |
ef7417fd SM |
1024 | DEFUN ("x-popup-menu", Fx_popup_menu, Sx_popup_menu, 2, 2, 0, |
1025 | doc: /* Pop up a deck-of-cards menu and return user's selection. | |
1026 | POSITION is a position specification. This is either a mouse button event | |
1027 | or a list ((XOFFSET YOFFSET) WINDOW) | |
1028 | where XOFFSET and YOFFSET are positions in pixels from the top left | |
1029 | corner of WINDOW. (WINDOW may be a window or a frame object.) | |
1030 | This controls the position of the top left of the menu as a whole. | |
1031 | If POSITION is t, it means to use the current mouse position. | |
1032 | ||
1033 | MENU is a specifier for a menu. For the simplest case, MENU is a keymap. | |
1034 | The menu items come from key bindings that have a menu string as well as | |
1035 | a definition; actually, the "definition" in such a key binding looks like | |
1036 | \(STRING . REAL-DEFINITION). To give the menu a title, put a string into | |
1037 | the keymap as a top-level element. | |
1038 | ||
1039 | If REAL-DEFINITION is nil, that puts a nonselectable string in the menu. | |
1040 | Otherwise, REAL-DEFINITION should be a valid key binding definition. | |
1041 | ||
1042 | You can also use a list of keymaps as MENU. | |
1043 | Then each keymap makes a separate pane. | |
1044 | ||
1045 | When MENU is a keymap or a list of keymaps, the return value is the | |
1046 | list of events corresponding to the user's choice. Note that | |
1047 | `x-popup-menu' does not actually execute the command bound to that | |
1048 | sequence of events. | |
1049 | ||
1050 | Alternatively, you can specify a menu of multiple panes | |
1051 | with a list of the form (TITLE PANE1 PANE2...), | |
1052 | where each pane is a list of form (TITLE ITEM1 ITEM2...). | |
1053 | Each ITEM is normally a cons cell (STRING . VALUE); | |
1054 | but a string can appear as an item--that makes a nonselectable line | |
1055 | in the menu. | |
1056 | With this form of menu, the return value is VALUE from the chosen item. | |
1057 | ||
1058 | If POSITION is nil, don't display the menu at all, just precalculate the | |
1059 | cached information about equivalent key sequences. | |
1060 | ||
1061 | If the user gets rid of the menu without making a valid choice, for | |
1062 | instance by clicking the mouse away from a valid choice or by typing | |
1063 | keyboard input, then this normally results in a quit and | |
1064 | `x-popup-menu' does not return. But if POSITION is a mouse button | |
1065 | event (indicating that the user invoked the menu with the mouse) then | |
1066 | no quit occurs and `x-popup-menu' returns nil. */) | |
1067 | (position, menu) | |
1068 | Lisp_Object position, menu; | |
1069 | { | |
1070 | Lisp_Object keymap, tem; | |
1071 | int xpos = 0, ypos = 0; | |
1072 | Lisp_Object title; | |
1073 | char *error_name = NULL; | |
1074 | Lisp_Object selection = Qnil; | |
1075 | FRAME_PTR f = NULL; | |
1076 | Lisp_Object x, y, window; | |
1077 | int keymaps = 0; | |
1078 | int for_click = 0; | |
1079 | int specpdl_count = SPECPDL_INDEX (); | |
ef7417fd | 1080 | struct gcpro gcpro1; |
ef7417fd | 1081 | |
ef7417fd SM |
1082 | if (NILP (position)) |
1083 | /* This is an obsolete call, which wants us to precompute the | |
1084 | keybinding equivalents, but we don't do that any more anyway. */ | |
1085 | return Qnil; | |
1086 | ||
1087 | #ifdef HAVE_MENUS | |
1088 | { | |
1089 | int get_current_pos_p = 0; | |
1090 | /* FIXME!! check_w32 (); or check_x (); or check_ns (); */ | |
1091 | ||
1092 | /* Decode the first argument: find the window and the coordinates. */ | |
1093 | if (EQ (position, Qt) | |
1094 | || (CONSP (position) && (EQ (XCAR (position), Qmenu_bar) | |
1095 | || EQ (XCAR (position), Qtool_bar)))) | |
1096 | { | |
1097 | get_current_pos_p = 1; | |
1098 | } | |
1099 | else | |
1100 | { | |
1101 | tem = Fcar (position); | |
1102 | if (CONSP (tem)) | |
1103 | { | |
1104 | window = Fcar (Fcdr (position)); | |
1105 | x = XCAR (tem); | |
1106 | y = Fcar (XCDR (tem)); | |
1107 | } | |
1108 | else | |
1109 | { | |
1110 | for_click = 1; | |
1111 | tem = Fcar (Fcdr (position)); /* EVENT_START (position) */ | |
1112 | window = Fcar (tem); /* POSN_WINDOW (tem) */ | |
a6d676d9 CY |
1113 | tem = Fcar (Fcdr (Fcdr (tem))); /* POSN_WINDOW_POSN (tem) */ |
1114 | x = Fcar (tem); | |
1115 | y = Fcdr (tem); | |
ef7417fd SM |
1116 | } |
1117 | ||
1118 | /* If a click happens in an external tool bar or a detached | |
1119 | tool bar, x and y is NIL. In that case, use the current | |
1120 | mouse position. This happens for the help button in the | |
1121 | tool bar. Ideally popup-menu should pass NIL to | |
1122 | this function, but it doesn't. */ | |
1123 | if (NILP (x) && NILP (y)) | |
1124 | get_current_pos_p = 1; | |
1125 | } | |
1126 | ||
1127 | if (get_current_pos_p) | |
1128 | { | |
1129 | /* Use the mouse's current position. */ | |
1130 | FRAME_PTR new_f = SELECTED_FRAME (); | |
1131 | #ifdef HAVE_X_WINDOWS | |
1132 | /* Can't use mouse_position_hook for X since it returns | |
1133 | coordinates relative to the window the mouse is in, | |
1134 | we need coordinates relative to the edit widget always. */ | |
1135 | if (new_f != 0) | |
1136 | { | |
1137 | int cur_x, cur_y; | |
1138 | ||
1139 | mouse_position_for_popup (new_f, &cur_x, &cur_y); | |
1140 | /* cur_x/y may be negative, so use make_number. */ | |
1141 | x = make_number (cur_x); | |
1142 | y = make_number (cur_y); | |
1143 | } | |
1144 | ||
1145 | #else /* not HAVE_X_WINDOWS */ | |
1146 | Lisp_Object bar_window; | |
1147 | enum scroll_bar_part part; | |
1148 | unsigned long time; | |
f57e2426 J |
1149 | void (*mouse_position_hook) (struct frame **, int, |
1150 | Lisp_Object *, | |
1151 | enum scroll_bar_part *, | |
1152 | Lisp_Object *, | |
1153 | Lisp_Object *, | |
1154 | unsigned long *) = | |
ef7417fd SM |
1155 | FRAME_TERMINAL (new_f)->mouse_position_hook; |
1156 | ||
1157 | if (mouse_position_hook) | |
1158 | (*mouse_position_hook) (&new_f, 1, &bar_window, | |
1159 | &part, &x, &y, &time); | |
1160 | #endif /* not HAVE_X_WINDOWS */ | |
1161 | ||
1162 | if (new_f != 0) | |
1163 | XSETFRAME (window, new_f); | |
1164 | else | |
1165 | { | |
1166 | window = selected_window; | |
1167 | XSETFASTINT (x, 0); | |
1168 | XSETFASTINT (y, 0); | |
1169 | } | |
1170 | } | |
1171 | ||
1172 | CHECK_NUMBER (x); | |
1173 | CHECK_NUMBER (y); | |
1174 | ||
1175 | /* Decode where to put the menu. */ | |
1176 | ||
1177 | if (FRAMEP (window)) | |
1178 | { | |
1179 | f = XFRAME (window); | |
1180 | xpos = 0; | |
1181 | ypos = 0; | |
1182 | } | |
1183 | else if (WINDOWP (window)) | |
1184 | { | |
1185 | struct window *win = XWINDOW (window); | |
1186 | CHECK_LIVE_WINDOW (window); | |
1187 | f = XFRAME (WINDOW_FRAME (win)); | |
1188 | ||
ef7417fd SM |
1189 | xpos = WINDOW_LEFT_EDGE_X (win); |
1190 | ypos = WINDOW_TOP_EDGE_Y (win); | |
ef7417fd SM |
1191 | } |
1192 | else | |
1193 | /* ??? Not really clean; should be CHECK_WINDOW_OR_FRAME, | |
1194 | but I don't want to make one now. */ | |
1195 | CHECK_WINDOW (window); | |
1196 | ||
1197 | xpos += XINT (x); | |
1198 | ypos += XINT (y); | |
1199 | ||
1200 | /* FIXME: Find a more general check! */ | |
1201 | if (!(FRAME_X_P (f) || FRAME_MSDOS_P (f) | |
1202 | || FRAME_W32_P (f) || FRAME_NS_P (f))) | |
1203 | error ("Can not put GUI menu on this terminal"); | |
1204 | ||
1205 | XSETFRAME (Vmenu_updating_frame, f); | |
1206 | } | |
1207 | #endif /* HAVE_MENUS */ | |
1208 | ||
1209 | /* Now parse the lisp menus. */ | |
1210 | record_unwind_protect (unuse_menu_items, Qnil); | |
1211 | ||
1212 | title = Qnil; | |
1213 | GCPRO1 (title); | |
1214 | ||
1215 | /* Decode the menu items from what was specified. */ | |
1216 | ||
1217 | keymap = get_keymap (menu, 0, 0); | |
1218 | if (CONSP (keymap)) | |
1219 | { | |
1220 | /* We were given a keymap. Extract menu info from the keymap. */ | |
1221 | Lisp_Object prompt; | |
1222 | ||
1223 | /* Extract the detailed info to make one pane. */ | |
1224 | keymap_panes (&menu, 1); | |
1225 | ||
1226 | /* Search for a string appearing directly as an element of the keymap. | |
1227 | That string is the title of the menu. */ | |
1228 | prompt = Fkeymap_prompt (keymap); | |
1229 | if (!NILP (prompt)) | |
1230 | title = prompt; | |
1231 | #ifdef HAVE_NS /* Is that needed and NS-specific? --Stef */ | |
1232 | else | |
1233 | title = build_string ("Select"); | |
1234 | #endif | |
1235 | ||
1236 | /* Make that be the pane title of the first pane. */ | |
1237 | if (!NILP (prompt) && menu_items_n_panes >= 0) | |
1238 | ASET (menu_items, MENU_ITEMS_PANE_NAME, prompt); | |
1239 | ||
1240 | keymaps = 1; | |
1241 | } | |
1242 | else if (CONSP (menu) && KEYMAPP (XCAR (menu))) | |
1243 | { | |
1244 | /* We were given a list of keymaps. */ | |
1245 | int nmaps = XFASTINT (Flength (menu)); | |
1246 | Lisp_Object *maps | |
1247 | = (Lisp_Object *) alloca (nmaps * sizeof (Lisp_Object)); | |
1248 | int i; | |
1249 | ||
1250 | title = Qnil; | |
1251 | ||
1252 | /* The first keymap that has a prompt string | |
1253 | supplies the menu title. */ | |
1254 | for (tem = menu, i = 0; CONSP (tem); tem = XCDR (tem)) | |
1255 | { | |
1256 | Lisp_Object prompt; | |
1257 | ||
1258 | maps[i++] = keymap = get_keymap (XCAR (tem), 1, 0); | |
1259 | ||
1260 | prompt = Fkeymap_prompt (keymap); | |
1261 | if (NILP (title) && !NILP (prompt)) | |
1262 | title = prompt; | |
1263 | } | |
1264 | ||
1265 | /* Extract the detailed info to make one pane. */ | |
1266 | keymap_panes (maps, nmaps); | |
1267 | ||
1268 | /* Make the title be the pane title of the first pane. */ | |
1269 | if (!NILP (title) && menu_items_n_panes >= 0) | |
1270 | ASET (menu_items, MENU_ITEMS_PANE_NAME, title); | |
1271 | ||
1272 | keymaps = 1; | |
1273 | } | |
1274 | else | |
1275 | { | |
1276 | /* We were given an old-fashioned menu. */ | |
1277 | title = Fcar (menu); | |
1278 | CHECK_STRING (title); | |
1279 | ||
1280 | list_of_panes (Fcdr (menu)); | |
1281 | ||
1282 | keymaps = 0; | |
1283 | } | |
1284 | ||
1285 | unbind_to (specpdl_count, Qnil); | |
1286 | ||
1287 | #ifdef HAVE_MENUS | |
dc92c039 | 1288 | #ifdef HAVE_WINDOW_SYSTEM |
ef7417fd SM |
1289 | /* Hide a previous tip, if any. */ |
1290 | Fx_hide_tip (); | |
dc92c039 | 1291 | #endif |
ef7417fd SM |
1292 | |
1293 | #ifdef HAVE_NTGUI /* FIXME: Is it really w32-specific? --Stef */ | |
1294 | /* If resources from a previous popup menu still exist, does nothing | |
1295 | until the `menu_free_timer' has freed them (see w32fns.c). This | |
1296 | can occur if you press ESC or click outside a menu without selecting | |
1297 | a menu item. | |
1298 | */ | |
1299 | if (current_popup_menu) | |
1300 | { | |
1301 | discard_menu_items (); | |
1302 | FRAME_X_DISPLAY_INFO (f)->grabbed = 0; | |
1303 | UNGCPRO; | |
1304 | return Qnil; | |
1305 | } | |
1306 | #endif | |
1307 | ||
1308 | #ifdef HAVE_NS /* FIXME: ns-specific, why? --Stef */ | |
1309 | record_unwind_protect (cleanup_popup_menu, Qnil); | |
1310 | #endif | |
1311 | ||
1312 | /* Display them in a menu. */ | |
1313 | BLOCK_INPUT; | |
1314 | ||
1315 | /* FIXME: Use a terminal hook! */ | |
1316 | #if defined HAVE_NTGUI | |
1317 | selection = w32_menu_show (f, xpos, ypos, for_click, | |
1318 | keymaps, title, &error_name); | |
1319 | #elif defined HAVE_NS | |
1320 | selection = ns_menu_show (f, xpos, ypos, for_click, | |
1321 | keymaps, title, &error_name); | |
1322 | #else /* MSDOS and X11 */ | |
a6d676d9 CY |
1323 | /* Assume last_event_timestamp is the timestamp of the button event. |
1324 | Is this assumption ever violated? We can't use the timestamp | |
1325 | stored within POSITION because there the top bits from the actual | |
1326 | timestamp may be truncated away (Bug#4930). */ | |
ef7417fd SM |
1327 | selection = xmenu_show (f, xpos, ypos, for_click, |
1328 | keymaps, title, &error_name, | |
a6d676d9 | 1329 | last_event_timestamp); |
ef7417fd SM |
1330 | #endif |
1331 | ||
1332 | UNBLOCK_INPUT; | |
1333 | ||
1334 | #ifdef HAVE_NS | |
1335 | unbind_to (specpdl_count, Qnil); | |
1336 | #else | |
1337 | discard_menu_items (); | |
1338 | #endif | |
1339 | ||
1340 | #ifdef HAVE_NTGUI /* FIXME: Is it really w32-specific? --Stef */ | |
1341 | FRAME_X_DISPLAY_INFO (f)->grabbed = 0; | |
1342 | #endif | |
1343 | ||
1344 | #endif /* HAVE_MENUS */ | |
1345 | ||
1346 | UNGCPRO; | |
1347 | ||
1348 | if (error_name) error (error_name); | |
1349 | return selection; | |
1350 | } | |
1351 | ||
279a1d4b | 1352 | void |
971de7fb | 1353 | syms_of_menu (void) |
279a1d4b CY |
1354 | { |
1355 | staticpro (&menu_items); | |
1356 | menu_items = Qnil; | |
1357 | menu_items_inuse = Qnil; | |
ef7417fd SM |
1358 | |
1359 | defsubr (&Sx_popup_menu); | |
279a1d4b | 1360 | } |
041fa0d4 MB |
1361 | |
1362 | /* arch-tag: 78bbc7cf-8025-4156-aa8a-6c7fd99bf51d | |
1363 | (do not change this comment) */ |