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279a1d4b | 1 | /* Platform-independent code for terminal communications. |
95df8112 GM |
2 | |
3 | Copyright (C) 1986, 1988, 1993-1994, 1996, 1999-2011 | |
4 | Free Software Foundation, Inc. | |
279a1d4b CY |
5 | |
6 | This file is part of GNU Emacs. | |
7 | ||
8 | GNU Emacs is free software: you can redistribute it and/or modify | |
9 | it under the terms of the GNU General Public License as published by | |
10 | the Free Software Foundation, either version 3 of the License, or | |
11 | (at your option) any later version. | |
12 | ||
13 | GNU Emacs is distributed in the hope that it will be useful, | |
14 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
15 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
16 | GNU General Public License for more details. | |
17 | ||
18 | You should have received a copy of the GNU General Public License | |
19 | along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>. */ | |
20 | ||
21 | #include <config.h> | |
22 | #include <stdio.h> | |
d7306fe6 | 23 | #include <setjmp.h> |
279a1d4b CY |
24 | |
25 | #include "lisp.h" | |
26 | #include "keyboard.h" | |
27 | #include "keymap.h" | |
28 | #include "frame.h" | |
ef7417fd | 29 | #include "window.h" |
279a1d4b CY |
30 | #include "termhooks.h" |
31 | #include "blockinput.h" | |
32 | #include "dispextern.h" | |
33 | ||
34 | #ifdef USE_X_TOOLKIT | |
35 | #include "../lwlib/lwlib.h" | |
36 | #endif | |
37 | ||
a4240420 AS |
38 | #ifdef HAVE_X_WINDOWS |
39 | #include "xterm.h" | |
40 | #endif | |
41 | ||
edfda783 AR |
42 | #ifdef HAVE_NS |
43 | #include "nsterm.h" | |
44 | #endif | |
45 | ||
279a1d4b CY |
46 | #ifdef USE_GTK |
47 | #include "gtkutil.h" | |
48 | #endif | |
49 | ||
50 | #ifdef HAVE_NTGUI | |
a8495745 | 51 | #include "w32term.h" |
279a1d4b | 52 | |
279a1d4b | 53 | extern AppendMenuW_Proc unicode_append_menu; |
04e452cb | 54 | extern HMENU current_popup_menu; |
279a1d4b CY |
55 | |
56 | #endif /* HAVE_NTGUI */ | |
57 | ||
e7c9048f | 58 | #include "menu.h" |
279a1d4b CY |
59 | |
60 | /* Define HAVE_BOXES if menus can handle radio and toggle buttons. */ | |
61 | #if defined (USE_X_TOOLKIT) || defined (USE_GTK) || defined (HAVE_NTGUI) | |
62 | #define HAVE_BOXES 1 | |
63 | #endif | |
64 | ||
279a1d4b CY |
65 | Lisp_Object menu_items; |
66 | ||
67 | /* If non-nil, means that the global vars defined here are already in use. | |
68 | Used to detect cases where we try to re-enter this non-reentrant code. */ | |
69 | Lisp_Object menu_items_inuse; | |
70 | ||
71 | /* Number of slots currently allocated in menu_items. */ | |
72 | int menu_items_allocated; | |
73 | ||
74 | /* This is the index in menu_items of the first empty slot. */ | |
75 | int menu_items_used; | |
76 | ||
77 | /* The number of panes currently recorded in menu_items, | |
78 | excluding those within submenus. */ | |
79 | int menu_items_n_panes; | |
80 | ||
81 | /* Current depth within submenus. */ | |
82 | static int menu_items_submenu_depth; | |
83 | ||
84 | void | |
971de7fb | 85 | init_menu_items (void) |
279a1d4b CY |
86 | { |
87 | if (!NILP (menu_items_inuse)) | |
88 | error ("Trying to use a menu from within a menu-entry"); | |
89 | ||
90 | if (NILP (menu_items)) | |
91 | { | |
92 | menu_items_allocated = 60; | |
93 | menu_items = Fmake_vector (make_number (menu_items_allocated), Qnil); | |
94 | } | |
95 | ||
96 | menu_items_inuse = Qt; | |
97 | menu_items_used = 0; | |
98 | menu_items_n_panes = 0; | |
99 | menu_items_submenu_depth = 0; | |
100 | } | |
101 | ||
102 | /* Call at the end of generating the data in menu_items. */ | |
103 | ||
104 | void | |
971de7fb | 105 | finish_menu_items (void) |
279a1d4b CY |
106 | { |
107 | } | |
108 | ||
109 | Lisp_Object | |
971de7fb | 110 | unuse_menu_items (Lisp_Object dummy) |
279a1d4b CY |
111 | { |
112 | return menu_items_inuse = Qnil; | |
113 | } | |
114 | ||
115 | /* Call when finished using the data for the current menu | |
116 | in menu_items. */ | |
117 | ||
118 | void | |
971de7fb | 119 | discard_menu_items (void) |
279a1d4b CY |
120 | { |
121 | /* Free the structure if it is especially large. | |
122 | Otherwise, hold on to it, to save time. */ | |
123 | if (menu_items_allocated > 200) | |
124 | { | |
125 | menu_items = Qnil; | |
126 | menu_items_allocated = 0; | |
127 | } | |
128 | xassert (NILP (menu_items_inuse)); | |
129 | } | |
130 | ||
94da8397 | 131 | #ifdef HAVE_NS |
ef7417fd SM |
132 | static Lisp_Object |
133 | cleanup_popup_menu (Lisp_Object arg) | |
134 | { | |
135 | discard_menu_items (); | |
136 | return Qnil; | |
137 | } | |
94da8397 | 138 | #endif |
ef7417fd | 139 | |
279a1d4b CY |
140 | /* This undoes save_menu_items, and it is called by the specpdl unwind |
141 | mechanism. */ | |
142 | ||
143 | static Lisp_Object | |
971de7fb | 144 | restore_menu_items (Lisp_Object saved) |
279a1d4b CY |
145 | { |
146 | menu_items = XCAR (saved); | |
147 | menu_items_inuse = (! NILP (menu_items) ? Qt : Qnil); | |
148 | menu_items_allocated = (VECTORP (menu_items) ? ASIZE (menu_items) : 0); | |
149 | saved = XCDR (saved); | |
150 | menu_items_used = XINT (XCAR (saved)); | |
151 | saved = XCDR (saved); | |
152 | menu_items_n_panes = XINT (XCAR (saved)); | |
153 | saved = XCDR (saved); | |
154 | menu_items_submenu_depth = XINT (XCAR (saved)); | |
155 | return Qnil; | |
156 | } | |
157 | ||
158 | /* Push the whole state of menu_items processing onto the specpdl. | |
159 | It will be restored when the specpdl is unwound. */ | |
160 | ||
161 | void | |
971de7fb | 162 | save_menu_items (void) |
279a1d4b CY |
163 | { |
164 | Lisp_Object saved = list4 (!NILP (menu_items_inuse) ? menu_items : Qnil, | |
165 | make_number (menu_items_used), | |
166 | make_number (menu_items_n_panes), | |
167 | make_number (menu_items_submenu_depth)); | |
168 | record_unwind_protect (restore_menu_items, saved); | |
169 | menu_items_inuse = Qnil; | |
170 | menu_items = Qnil; | |
171 | } | |
172 | ||
173 | \f | |
174 | /* Make the menu_items vector twice as large. */ | |
175 | ||
176 | static void | |
971de7fb | 177 | grow_menu_items (void) |
279a1d4b CY |
178 | { |
179 | menu_items_allocated *= 2; | |
180 | menu_items = larger_vector (menu_items, menu_items_allocated, Qnil); | |
181 | } | |
182 | ||
183 | /* Begin a submenu. */ | |
184 | ||
185 | static void | |
971de7fb | 186 | push_submenu_start (void) |
279a1d4b CY |
187 | { |
188 | if (menu_items_used + 1 > menu_items_allocated) | |
189 | grow_menu_items (); | |
190 | ||
191 | XVECTOR (menu_items)->contents[menu_items_used++] = Qnil; | |
192 | menu_items_submenu_depth++; | |
193 | } | |
194 | ||
195 | /* End a submenu. */ | |
196 | ||
197 | static void | |
971de7fb | 198 | push_submenu_end (void) |
279a1d4b CY |
199 | { |
200 | if (menu_items_used + 1 > menu_items_allocated) | |
201 | grow_menu_items (); | |
202 | ||
203 | XVECTOR (menu_items)->contents[menu_items_used++] = Qlambda; | |
204 | menu_items_submenu_depth--; | |
205 | } | |
206 | ||
207 | /* Indicate boundary between left and right. */ | |
208 | ||
209 | static void | |
971de7fb | 210 | push_left_right_boundary (void) |
279a1d4b CY |
211 | { |
212 | if (menu_items_used + 1 > menu_items_allocated) | |
213 | grow_menu_items (); | |
214 | ||
215 | XVECTOR (menu_items)->contents[menu_items_used++] = Qquote; | |
216 | } | |
217 | ||
218 | /* Start a new menu pane in menu_items. | |
219 | NAME is the pane name. PREFIX_VEC is a prefix key for this pane. */ | |
220 | ||
593c843c | 221 | static void |
971de7fb | 222 | push_menu_pane (Lisp_Object name, Lisp_Object prefix_vec) |
279a1d4b CY |
223 | { |
224 | if (menu_items_used + MENU_ITEMS_PANE_LENGTH > menu_items_allocated) | |
225 | grow_menu_items (); | |
226 | ||
227 | if (menu_items_submenu_depth == 0) | |
228 | menu_items_n_panes++; | |
229 | XVECTOR (menu_items)->contents[menu_items_used++] = Qt; | |
230 | XVECTOR (menu_items)->contents[menu_items_used++] = name; | |
231 | XVECTOR (menu_items)->contents[menu_items_used++] = prefix_vec; | |
232 | } | |
233 | ||
234 | /* Push one menu item into the current pane. NAME is the string to | |
235 | display. ENABLE if non-nil means this item can be selected. KEY | |
236 | is the key generated by choosing this item, or nil if this item | |
237 | doesn't really have a definition. DEF is the definition of this | |
238 | item. EQUIV is the textual description of the keyboard equivalent | |
239 | for this item (or nil if none). TYPE is the type of this menu | |
240 | item, one of nil, `toggle' or `radio'. */ | |
241 | ||
593c843c | 242 | static void |
971de7fb | 243 | 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 |
244 | { |
245 | if (menu_items_used + MENU_ITEMS_ITEM_LENGTH > menu_items_allocated) | |
246 | grow_menu_items (); | |
247 | ||
b7c7a4d1 SM |
248 | ASET (menu_items, menu_items_used + MENU_ITEMS_ITEM_NAME, name); |
249 | ASET (menu_items, menu_items_used + MENU_ITEMS_ITEM_ENABLE, enable); | |
250 | ASET (menu_items, menu_items_used + MENU_ITEMS_ITEM_VALUE, key); | |
251 | ASET (menu_items, menu_items_used + MENU_ITEMS_ITEM_EQUIV_KEY, equiv); | |
252 | ASET (menu_items, menu_items_used + MENU_ITEMS_ITEM_DEFINITION, def); | |
253 | ASET (menu_items, menu_items_used + MENU_ITEMS_ITEM_TYPE, type); | |
254 | ASET (menu_items, menu_items_used + MENU_ITEMS_ITEM_SELECTED, selected); | |
255 | ASET (menu_items, menu_items_used + MENU_ITEMS_ITEM_HELP, help); | |
256 | ||
257 | menu_items_used += MENU_ITEMS_ITEM_LENGTH; | |
279a1d4b CY |
258 | } |
259 | ||
260 | /* Args passed between single_keymap_panes and single_menu_item. */ | |
261 | struct skp | |
262 | { | |
263 | Lisp_Object pending_maps; | |
ef7417fd | 264 | int maxdepth; |
279a1d4b CY |
265 | int notbuttons; |
266 | }; | |
267 | ||
f57e2426 J |
268 | static void single_menu_item (Lisp_Object, Lisp_Object, Lisp_Object, |
269 | void *); | |
279a1d4b CY |
270 | |
271 | /* This is a recursive subroutine of keymap_panes. | |
272 | It handles one keymap, KEYMAP. | |
273 | The other arguments are passed along | |
274 | or point to local variables of the previous function. | |
279a1d4b CY |
275 | |
276 | If we encounter submenus deeper than MAXDEPTH levels, ignore them. */ | |
277 | ||
593c843c | 278 | static void |
ef7417fd SM |
279 | single_keymap_panes (Lisp_Object keymap, Lisp_Object pane_name, |
280 | Lisp_Object prefix, int maxdepth) | |
279a1d4b CY |
281 | { |
282 | struct skp skp; | |
283 | struct gcpro gcpro1; | |
284 | ||
285 | skp.pending_maps = Qnil; | |
286 | skp.maxdepth = maxdepth; | |
279a1d4b CY |
287 | skp.notbuttons = 0; |
288 | ||
289 | if (maxdepth <= 0) | |
290 | return; | |
291 | ||
292 | push_menu_pane (pane_name, prefix); | |
293 | ||
294 | #ifndef HAVE_BOXES | |
295 | /* Remember index for first item in this pane so we can go back and | |
296 | add a prefix when (if) we see the first button. After that, notbuttons | |
297 | is set to 0, to mark that we have seen a button and all non button | |
298 | items need a prefix. */ | |
299 | skp.notbuttons = menu_items_used; | |
300 | #endif | |
301 | ||
302 | GCPRO1 (skp.pending_maps); | |
303 | map_keymap_canonical (keymap, single_menu_item, Qnil, &skp); | |
304 | UNGCPRO; | |
305 | ||
306 | /* Process now any submenus which want to be panes at this level. */ | |
307 | while (CONSP (skp.pending_maps)) | |
308 | { | |
309 | Lisp_Object elt, eltcdr, string; | |
310 | elt = XCAR (skp.pending_maps); | |
311 | eltcdr = XCDR (elt); | |
312 | string = XCAR (eltcdr); | |
313 | /* We no longer discard the @ from the beginning of the string here. | |
314 | Instead, we do this in *menu_show. */ | |
ef7417fd | 315 | single_keymap_panes (Fcar (elt), string, XCDR (eltcdr), maxdepth - 1); |
279a1d4b CY |
316 | skp.pending_maps = XCDR (skp.pending_maps); |
317 | } | |
318 | } | |
319 | ||
320 | /* This is a subroutine of single_keymap_panes that handles one | |
321 | keymap entry. | |
322 | KEY is a key in a keymap and ITEM is its binding. | |
323 | SKP->PENDING_MAPS_PTR is a list of keymaps waiting to be made into | |
324 | separate panes. | |
279a1d4b CY |
325 | If we encounter submenus deeper than SKP->MAXDEPTH levels, ignore them. */ |
326 | ||
327 | static void | |
971de7fb | 328 | single_menu_item (Lisp_Object key, Lisp_Object item, Lisp_Object dummy, void *skp_v) |
279a1d4b CY |
329 | { |
330 | Lisp_Object map, item_string, enabled; | |
331 | struct gcpro gcpro1, gcpro2; | |
332 | int res; | |
333 | struct skp *skp = skp_v; | |
334 | ||
335 | /* Parse the menu item and leave the result in item_properties. */ | |
336 | GCPRO2 (key, item); | |
ef7417fd | 337 | res = parse_menu_item (item, 0); |
279a1d4b CY |
338 | UNGCPRO; |
339 | if (!res) | |
340 | return; /* Not a menu item. */ | |
341 | ||
342 | map = XVECTOR (item_properties)->contents[ITEM_PROPERTY_MAP]; | |
343 | ||
279a1d4b CY |
344 | enabled = XVECTOR (item_properties)->contents[ITEM_PROPERTY_ENABLE]; |
345 | item_string = XVECTOR (item_properties)->contents[ITEM_PROPERTY_NAME]; | |
346 | ||
347 | if (!NILP (map) && SREF (item_string, 0) == '@') | |
348 | { | |
349 | if (!NILP (enabled)) | |
350 | /* An enabled separate pane. Remember this to handle it later. */ | |
351 | skp->pending_maps = Fcons (Fcons (map, Fcons (item_string, key)), | |
352 | skp->pending_maps); | |
353 | return; | |
354 | } | |
355 | ||
dda86321 | 356 | #if defined(HAVE_X_WINDOWS) || defined(MSDOS) |
279a1d4b CY |
357 | #ifndef HAVE_BOXES |
358 | /* Simulate radio buttons and toggle boxes by putting a prefix in | |
359 | front of them. */ | |
360 | { | |
361 | Lisp_Object prefix = Qnil; | |
362 | Lisp_Object type = XVECTOR (item_properties)->contents[ITEM_PROPERTY_TYPE]; | |
363 | if (!NILP (type)) | |
364 | { | |
365 | Lisp_Object selected | |
366 | = XVECTOR (item_properties)->contents[ITEM_PROPERTY_SELECTED]; | |
367 | ||
368 | if (skp->notbuttons) | |
369 | /* The first button. Line up previous items in this menu. */ | |
370 | { | |
371 | int index = skp->notbuttons; /* Index for first item this menu. */ | |
372 | int submenu = 0; | |
373 | Lisp_Object tem; | |
374 | while (index < menu_items_used) | |
375 | { | |
376 | tem | |
377 | = XVECTOR (menu_items)->contents[index + MENU_ITEMS_ITEM_NAME]; | |
378 | if (NILP (tem)) | |
379 | { | |
380 | index++; | |
381 | submenu++; /* Skip sub menu. */ | |
382 | } | |
383 | else if (EQ (tem, Qlambda)) | |
384 | { | |
385 | index++; | |
386 | submenu--; /* End sub menu. */ | |
387 | } | |
388 | else if (EQ (tem, Qt)) | |
389 | index += 3; /* Skip new pane marker. */ | |
390 | else if (EQ (tem, Qquote)) | |
391 | index++; /* Skip a left, right divider. */ | |
392 | else | |
393 | { | |
394 | if (!submenu && SREF (tem, 0) != '\0' | |
395 | && SREF (tem, 0) != '-') | |
396 | XVECTOR (menu_items)->contents[index + MENU_ITEMS_ITEM_NAME] | |
397 | = concat2 (build_string (" "), tem); | |
398 | index += MENU_ITEMS_ITEM_LENGTH; | |
399 | } | |
400 | } | |
401 | skp->notbuttons = 0; | |
402 | } | |
403 | ||
404 | /* Calculate prefix, if any, for this item. */ | |
405 | if (EQ (type, QCtoggle)) | |
406 | prefix = build_string (NILP (selected) ? "[ ] " : "[X] "); | |
407 | else if (EQ (type, QCradio)) | |
408 | prefix = build_string (NILP (selected) ? "( ) " : "(*) "); | |
409 | } | |
410 | /* Not a button. If we have earlier buttons, then we need a prefix. */ | |
411 | else if (!skp->notbuttons && SREF (item_string, 0) != '\0' | |
412 | && SREF (item_string, 0) != '-') | |
413 | prefix = build_string (" "); | |
414 | ||
415 | if (!NILP (prefix)) | |
416 | item_string = concat2 (prefix, item_string); | |
417 | } | |
418 | #endif /* not HAVE_BOXES */ | |
419 | ||
420 | #if ! defined (USE_X_TOOLKIT) && ! defined (USE_GTK) | |
421 | if (!NILP (map)) | |
422 | /* Indicate visually that this is a submenu. */ | |
423 | item_string = concat2 (item_string, build_string (" >")); | |
424 | #endif | |
425 | ||
dda86321 | 426 | #endif /* HAVE_X_WINDOWS || MSDOS */ |
279a1d4b CY |
427 | |
428 | push_menu_item (item_string, enabled, key, | |
429 | XVECTOR (item_properties)->contents[ITEM_PROPERTY_DEF], | |
430 | XVECTOR (item_properties)->contents[ITEM_PROPERTY_KEYEQ], | |
431 | XVECTOR (item_properties)->contents[ITEM_PROPERTY_TYPE], | |
432 | XVECTOR (item_properties)->contents[ITEM_PROPERTY_SELECTED], | |
433 | XVECTOR (item_properties)->contents[ITEM_PROPERTY_HELP]); | |
434 | ||
edfda783 | 435 | #if defined (USE_X_TOOLKIT) || defined (USE_GTK) || defined (HAVE_NS) || defined (HAVE_NTGUI) |
279a1d4b CY |
436 | /* Display a submenu using the toolkit. */ |
437 | if (! (NILP (map) || NILP (enabled))) | |
438 | { | |
439 | push_submenu_start (); | |
ef7417fd | 440 | single_keymap_panes (map, Qnil, key, skp->maxdepth - 1); |
279a1d4b CY |
441 | push_submenu_end (); |
442 | } | |
443 | #endif | |
444 | } | |
445 | ||
446 | /* Look through KEYMAPS, a vector of keymaps that is NMAPS long, | |
ef7417fd | 447 | and generate menu panes for them in menu_items. */ |
279a1d4b | 448 | |
ef7417fd | 449 | static void |
971de7fb | 450 | keymap_panes (Lisp_Object *keymaps, int nmaps) |
279a1d4b CY |
451 | { |
452 | int mapno; | |
453 | ||
454 | init_menu_items (); | |
455 | ||
456 | /* Loop over the given keymaps, making a pane for each map. | |
457 | But don't make a pane that is empty--ignore that map instead. | |
458 | P is the number of panes we have made so far. */ | |
459 | for (mapno = 0; mapno < nmaps; mapno++) | |
460 | single_keymap_panes (keymaps[mapno], | |
ef7417fd | 461 | Fkeymap_prompt (keymaps[mapno]), Qnil, 10); |
279a1d4b CY |
462 | |
463 | finish_menu_items (); | |
464 | } | |
465 | ||
466 | ||
467 | /* Push the items in a single pane defined by the alist PANE. */ | |
468 | static void | |
971de7fb | 469 | list_of_items (Lisp_Object pane) |
279a1d4b CY |
470 | { |
471 | Lisp_Object tail, item, item1; | |
472 | ||
473 | for (tail = pane; CONSP (tail); tail = XCDR (tail)) | |
474 | { | |
475 | item = XCAR (tail); | |
476 | if (STRINGP (item)) | |
477 | push_menu_item (ENCODE_MENU_STRING (item), Qnil, Qnil, Qt, | |
478 | Qnil, Qnil, Qnil, Qnil); | |
479 | else if (CONSP (item)) | |
480 | { | |
481 | item1 = XCAR (item); | |
482 | CHECK_STRING (item1); | |
483 | push_menu_item (ENCODE_MENU_STRING (item1), Qt, XCDR (item), | |
484 | Qt, Qnil, Qnil, Qnil, Qnil); | |
485 | } | |
486 | else | |
487 | push_left_right_boundary (); | |
488 | ||
489 | } | |
490 | } | |
491 | ||
492 | /* Push all the panes and items of a menu described by the | |
493 | alist-of-alists MENU. | |
494 | This handles old-fashioned calls to x-popup-menu. */ | |
495 | void | |
971de7fb | 496 | list_of_panes (Lisp_Object menu) |
279a1d4b CY |
497 | { |
498 | Lisp_Object tail; | |
499 | ||
500 | init_menu_items (); | |
501 | ||
502 | for (tail = menu; CONSP (tail); tail = XCDR (tail)) | |
503 | { | |
504 | Lisp_Object elt, pane_name, pane_data; | |
505 | elt = XCAR (tail); | |
506 | pane_name = Fcar (elt); | |
507 | CHECK_STRING (pane_name); | |
508 | push_menu_pane (ENCODE_MENU_STRING (pane_name), Qnil); | |
509 | pane_data = Fcdr (elt); | |
510 | CHECK_CONS (pane_data); | |
511 | list_of_items (pane_data); | |
512 | } | |
513 | ||
514 | finish_menu_items (); | |
515 | } | |
516 | ||
517 | /* Set up data in menu_items for a menu bar item | |
518 | whose event type is ITEM_KEY (with string ITEM_NAME) | |
519 | and whose contents come from the list of keymaps MAPS. */ | |
520 | int | |
971de7fb | 521 | parse_single_submenu (Lisp_Object item_key, Lisp_Object item_name, Lisp_Object maps) |
279a1d4b CY |
522 | { |
523 | Lisp_Object length; | |
524 | int len; | |
525 | Lisp_Object *mapvec; | |
526 | int i; | |
527 | int top_level_items = 0; | |
528 | ||
529 | length = Flength (maps); | |
530 | len = XINT (length); | |
531 | ||
532 | /* Convert the list MAPS into a vector MAPVEC. */ | |
533 | mapvec = (Lisp_Object *) alloca (len * sizeof (Lisp_Object)); | |
534 | for (i = 0; i < len; i++) | |
535 | { | |
536 | mapvec[i] = Fcar (maps); | |
537 | maps = Fcdr (maps); | |
538 | } | |
539 | ||
540 | /* Loop over the given keymaps, making a pane for each map. | |
541 | But don't make a pane that is empty--ignore that map instead. */ | |
542 | for (i = 0; i < len; i++) | |
543 | { | |
544 | if (!KEYMAPP (mapvec[i])) | |
545 | { | |
546 | /* Here we have a command at top level in the menu bar | |
547 | as opposed to a submenu. */ | |
548 | top_level_items = 1; | |
549 | push_menu_pane (Qnil, Qnil); | |
550 | push_menu_item (item_name, Qt, item_key, mapvec[i], | |
551 | Qnil, Qnil, Qnil, Qnil); | |
552 | } | |
553 | else | |
554 | { | |
555 | Lisp_Object prompt; | |
556 | prompt = Fkeymap_prompt (mapvec[i]); | |
557 | single_keymap_panes (mapvec[i], | |
558 | !NILP (prompt) ? prompt : item_name, | |
ef7417fd | 559 | item_key, 10); |
279a1d4b CY |
560 | } |
561 | } | |
562 | ||
563 | return top_level_items; | |
564 | } | |
565 | ||
566 | \f | |
edfda783 | 567 | #if defined (USE_X_TOOLKIT) || defined (USE_GTK) || defined (HAVE_NS) || defined (HAVE_NTGUI) |
279a1d4b CY |
568 | |
569 | /* Allocate a widget_value, blocking input. */ | |
570 | ||
571 | widget_value * | |
971de7fb | 572 | xmalloc_widget_value (void) |
279a1d4b CY |
573 | { |
574 | widget_value *value; | |
575 | ||
576 | BLOCK_INPUT; | |
577 | value = malloc_widget_value (); | |
578 | UNBLOCK_INPUT; | |
579 | ||
580 | return value; | |
581 | } | |
582 | ||
583 | /* This recursively calls free_widget_value on the tree of widgets. | |
584 | It must free all data that was malloc'ed for these widget_values. | |
585 | In Emacs, many slots are pointers into the data of Lisp_Strings, and | |
586 | must be left alone. */ | |
587 | ||
588 | void | |
971de7fb | 589 | free_menubar_widget_value_tree (widget_value *wv) |
279a1d4b CY |
590 | { |
591 | if (! wv) return; | |
592 | ||
593 | wv->name = wv->value = wv->key = (char *) 0xDEADBEEF; | |
594 | ||
595 | if (wv->contents && (wv->contents != (widget_value*)1)) | |
596 | { | |
597 | free_menubar_widget_value_tree (wv->contents); | |
598 | wv->contents = (widget_value *) 0xDEADBEEF; | |
599 | } | |
600 | if (wv->next) | |
601 | { | |
602 | free_menubar_widget_value_tree (wv->next); | |
603 | wv->next = (widget_value *) 0xDEADBEEF; | |
604 | } | |
605 | BLOCK_INPUT; | |
606 | free_widget_value (wv); | |
607 | UNBLOCK_INPUT; | |
608 | } | |
609 | ||
610 | /* Create a tree of widget_value objects | |
611 | representing the panes and items | |
612 | in menu_items starting at index START, up to index END. */ | |
613 | ||
614 | widget_value * | |
971de7fb | 615 | digest_single_submenu (int start, int end, int top_level_items) |
279a1d4b CY |
616 | { |
617 | widget_value *wv, *prev_wv, *save_wv, *first_wv; | |
618 | int i; | |
619 | int submenu_depth = 0; | |
620 | widget_value **submenu_stack; | |
621 | int panes_seen = 0; | |
622 | ||
623 | submenu_stack | |
624 | = (widget_value **) alloca (menu_items_used * sizeof (widget_value *)); | |
625 | wv = xmalloc_widget_value (); | |
626 | wv->name = "menu"; | |
627 | wv->value = 0; | |
628 | wv->enabled = 1; | |
629 | wv->button_type = BUTTON_TYPE_NONE; | |
630 | wv->help = Qnil; | |
631 | first_wv = wv; | |
632 | save_wv = 0; | |
633 | prev_wv = 0; | |
634 | ||
635 | /* Loop over all panes and items made by the preceding call | |
636 | to parse_single_submenu and construct a tree of widget_value objects. | |
637 | Ignore the panes and items used by previous calls to | |
638 | digest_single_submenu, even though those are also in menu_items. */ | |
639 | i = start; | |
640 | while (i < end) | |
641 | { | |
642 | if (EQ (XVECTOR (menu_items)->contents[i], Qnil)) | |
643 | { | |
644 | submenu_stack[submenu_depth++] = save_wv; | |
645 | save_wv = prev_wv; | |
646 | prev_wv = 0; | |
647 | i++; | |
648 | } | |
649 | else if (EQ (XVECTOR (menu_items)->contents[i], Qlambda)) | |
650 | { | |
651 | prev_wv = save_wv; | |
652 | save_wv = submenu_stack[--submenu_depth]; | |
653 | i++; | |
654 | } | |
655 | else if (EQ (XVECTOR (menu_items)->contents[i], Qt) | |
656 | && submenu_depth != 0) | |
657 | i += MENU_ITEMS_PANE_LENGTH; | |
658 | /* Ignore a nil in the item list. | |
659 | It's meaningful only for dialog boxes. */ | |
660 | else if (EQ (XVECTOR (menu_items)->contents[i], Qquote)) | |
661 | i += 1; | |
662 | else if (EQ (XVECTOR (menu_items)->contents[i], Qt)) | |
663 | { | |
664 | /* Create a new pane. */ | |
b01a1c29 | 665 | Lisp_Object pane_name; |
675e2c69 | 666 | const char *pane_string; |
279a1d4b CY |
667 | |
668 | panes_seen++; | |
669 | ||
670 | pane_name = XVECTOR (menu_items)->contents[i + MENU_ITEMS_PANE_NAME]; | |
279a1d4b CY |
671 | |
672 | #ifdef HAVE_NTGUI | |
673 | if (STRINGP (pane_name)) | |
674 | { | |
675 | if (unicode_append_menu) | |
676 | /* Encode as UTF-8 for now. */ | |
677 | pane_name = ENCODE_UTF_8 (pane_name); | |
678 | else if (STRING_MULTIBYTE (pane_name)) | |
679 | pane_name = ENCODE_SYSTEM (pane_name); | |
680 | ||
681 | ASET (menu_items, i + MENU_ITEMS_PANE_NAME, pane_name); | |
682 | } | |
99852628 JD |
683 | #elif defined (USE_LUCID) && defined (HAVE_XFT) |
684 | if (STRINGP (pane_name)) | |
685 | { | |
686 | pane_name = ENCODE_UTF_8 (pane_name); | |
687 | ASET (menu_items, i + MENU_ITEMS_PANE_NAME, pane_name); | |
688 | } | |
279a1d4b CY |
689 | #elif !defined (HAVE_MULTILINGUAL_MENU) |
690 | if (STRINGP (pane_name) && STRING_MULTIBYTE (pane_name)) | |
691 | { | |
692 | pane_name = ENCODE_MENU_STRING (pane_name); | |
693 | ASET (menu_items, i + MENU_ITEMS_PANE_NAME, pane_name); | |
694 | } | |
695 | #endif | |
696 | ||
697 | pane_string = (NILP (pane_name) | |
51b59d79 | 698 | ? "" : SSDATA (pane_name)); |
279a1d4b CY |
699 | /* If there is just one top-level pane, put all its items directly |
700 | under the top-level menu. */ | |
701 | if (menu_items_n_panes == 1) | |
702 | pane_string = ""; | |
703 | ||
704 | /* If the pane has a meaningful name, | |
705 | make the pane a top-level menu item | |
706 | with its items as a submenu beneath it. */ | |
707 | if (strcmp (pane_string, "")) | |
708 | { | |
709 | wv = xmalloc_widget_value (); | |
710 | if (save_wv) | |
711 | save_wv->next = wv; | |
712 | else | |
713 | first_wv->contents = wv; | |
714 | wv->lname = pane_name; | |
715 | /* Set value to 1 so update_submenu_strings can handle '@' */ | |
716 | wv->value = (char *)1; | |
717 | wv->enabled = 1; | |
718 | wv->button_type = BUTTON_TYPE_NONE; | |
719 | wv->help = Qnil; | |
720 | save_wv = wv; | |
721 | } | |
722 | else | |
723 | save_wv = first_wv; | |
724 | ||
725 | prev_wv = 0; | |
726 | i += MENU_ITEMS_PANE_LENGTH; | |
727 | } | |
728 | else | |
729 | { | |
730 | /* Create a new item within current pane. */ | |
731 | Lisp_Object item_name, enable, descrip, def, type, selected; | |
732 | Lisp_Object help; | |
733 | ||
734 | /* All items should be contained in panes. */ | |
735 | if (panes_seen == 0) | |
736 | abort (); | |
737 | ||
738 | item_name = AREF (menu_items, i + MENU_ITEMS_ITEM_NAME); | |
739 | enable = AREF (menu_items, i + MENU_ITEMS_ITEM_ENABLE); | |
740 | descrip = AREF (menu_items, i + MENU_ITEMS_ITEM_EQUIV_KEY); | |
741 | def = AREF (menu_items, i + MENU_ITEMS_ITEM_DEFINITION); | |
742 | type = AREF (menu_items, i + MENU_ITEMS_ITEM_TYPE); | |
743 | selected = AREF (menu_items, i + MENU_ITEMS_ITEM_SELECTED); | |
744 | help = AREF (menu_items, i + MENU_ITEMS_ITEM_HELP); | |
745 | ||
746 | #ifdef HAVE_NTGUI | |
747 | if (STRINGP (item_name)) | |
748 | { | |
749 | if (unicode_append_menu) | |
750 | item_name = ENCODE_UTF_8 (item_name); | |
751 | else if (STRING_MULTIBYTE (item_name)) | |
752 | item_name = ENCODE_SYSTEM (item_name); | |
753 | ||
754 | ASET (menu_items, i + MENU_ITEMS_ITEM_NAME, item_name); | |
755 | } | |
756 | ||
757 | if (STRINGP (descrip) && STRING_MULTIBYTE (descrip)) | |
758 | { | |
759 | descrip = ENCODE_SYSTEM (descrip); | |
760 | ASET (menu_items, i + MENU_ITEMS_ITEM_EQUIV_KEY, descrip); | |
761 | } | |
99852628 JD |
762 | #elif USE_LUCID |
763 | if (STRINGP (item_name)) | |
764 | { | |
765 | item_name = ENCODE_UTF_8 (item_name); | |
766 | ASET (menu_items, i + MENU_ITEMS_ITEM_NAME, item_name); | |
767 | } | |
768 | ||
769 | if (STRINGP (descrip)) | |
770 | { | |
771 | descrip = ENCODE_UTF_8 (descrip); | |
772 | ASET (menu_items, i + MENU_ITEMS_ITEM_EQUIV_KEY, descrip); | |
773 | } | |
279a1d4b CY |
774 | #elif !defined (HAVE_MULTILINGUAL_MENU) |
775 | if (STRING_MULTIBYTE (item_name)) | |
776 | { | |
777 | item_name = ENCODE_MENU_STRING (item_name); | |
778 | ASET (menu_items, i + MENU_ITEMS_ITEM_NAME, item_name); | |
779 | } | |
780 | ||
781 | if (STRINGP (descrip) && STRING_MULTIBYTE (descrip)) | |
782 | { | |
783 | descrip = ENCODE_MENU_STRING (descrip); | |
784 | ASET (menu_items, i + MENU_ITEMS_ITEM_EQUIV_KEY, descrip); | |
785 | } | |
786 | #endif | |
787 | ||
788 | wv = xmalloc_widget_value (); | |
789 | if (prev_wv) | |
790 | prev_wv->next = wv; | |
791 | else | |
792 | save_wv->contents = wv; | |
793 | ||
794 | wv->lname = item_name; | |
795 | if (!NILP (descrip)) | |
796 | wv->lkey = descrip; | |
797 | wv->value = 0; | |
798 | /* The EMACS_INT cast avoids a warning. There's no problem | |
799 | as long as pointers have enough bits to hold small integers. */ | |
800 | wv->call_data = (!NILP (def) ? (void *) (EMACS_INT) i : 0); | |
801 | wv->enabled = !NILP (enable); | |
802 | ||
803 | if (NILP (type)) | |
804 | wv->button_type = BUTTON_TYPE_NONE; | |
805 | else if (EQ (type, QCradio)) | |
806 | wv->button_type = BUTTON_TYPE_RADIO; | |
807 | else if (EQ (type, QCtoggle)) | |
808 | wv->button_type = BUTTON_TYPE_TOGGLE; | |
809 | else | |
810 | abort (); | |
811 | ||
812 | wv->selected = !NILP (selected); | |
813 | if (! STRINGP (help)) | |
814 | help = Qnil; | |
815 | ||
816 | wv->help = help; | |
817 | ||
818 | prev_wv = wv; | |
819 | ||
820 | i += MENU_ITEMS_ITEM_LENGTH; | |
821 | } | |
822 | } | |
823 | ||
824 | /* If we have just one "menu item" | |
825 | that was originally a button, return it by itself. */ | |
826 | if (top_level_items && first_wv->contents && first_wv->contents->next == 0) | |
827 | { | |
828 | wv = first_wv->contents; | |
829 | free_widget_value (first_wv); | |
830 | return wv; | |
831 | } | |
832 | ||
833 | return first_wv; | |
834 | } | |
835 | ||
836 | /* Walk through the widget_value tree starting at FIRST_WV and update | |
837 | the char * pointers from the corresponding lisp values. | |
838 | We do this after building the whole tree, since GC may happen while the | |
839 | tree is constructed, and small strings are relocated. So we must wait | |
840 | until no GC can happen before storing pointers into lisp values. */ | |
841 | void | |
971de7fb | 842 | update_submenu_strings (widget_value *first_wv) |
279a1d4b CY |
843 | { |
844 | widget_value *wv; | |
845 | ||
846 | for (wv = first_wv; wv; wv = wv->next) | |
847 | { | |
848 | if (STRINGP (wv->lname)) | |
849 | { | |
51b59d79 | 850 | wv->name = SSDATA (wv->lname); |
279a1d4b CY |
851 | |
852 | /* Ignore the @ that means "separate pane". | |
853 | This is a kludge, but this isn't worth more time. */ | |
854 | if (wv->value == (char *)1) | |
855 | { | |
856 | if (wv->name[0] == '@') | |
857 | wv->name++; | |
858 | wv->value = 0; | |
859 | } | |
860 | } | |
861 | ||
862 | if (STRINGP (wv->lkey)) | |
51b59d79 | 863 | wv->key = SSDATA (wv->lkey); |
279a1d4b CY |
864 | |
865 | if (wv->contents) | |
866 | update_submenu_strings (wv->contents); | |
867 | } | |
868 | } | |
869 | ||
870 | /* Find the menu selection and store it in the keyboard buffer. | |
871 | F is the frame the menu is on. | |
872 | MENU_BAR_ITEMS_USED is the length of VECTOR. | |
873 | VECTOR is an array of menu events for the whole menu. */ | |
874 | ||
875 | void | |
971de7fb | 876 | find_and_call_menu_selection (FRAME_PTR f, int menu_bar_items_used, Lisp_Object vector, void *client_data) |
279a1d4b CY |
877 | { |
878 | Lisp_Object prefix, entry; | |
879 | Lisp_Object *subprefix_stack; | |
880 | int submenu_depth = 0; | |
881 | int i; | |
882 | ||
883 | entry = Qnil; | |
884 | subprefix_stack = (Lisp_Object *) alloca (menu_bar_items_used * sizeof (Lisp_Object)); | |
885 | prefix = Qnil; | |
886 | i = 0; | |
887 | ||
888 | while (i < menu_bar_items_used) | |
889 | { | |
890 | if (EQ (XVECTOR (vector)->contents[i], Qnil)) | |
891 | { | |
892 | subprefix_stack[submenu_depth++] = prefix; | |
893 | prefix = entry; | |
894 | i++; | |
895 | } | |
896 | else if (EQ (XVECTOR (vector)->contents[i], Qlambda)) | |
897 | { | |
898 | prefix = subprefix_stack[--submenu_depth]; | |
899 | i++; | |
900 | } | |
901 | else if (EQ (XVECTOR (vector)->contents[i], Qt)) | |
902 | { | |
903 | prefix = XVECTOR (vector)->contents[i + MENU_ITEMS_PANE_PREFIX]; | |
904 | i += MENU_ITEMS_PANE_LENGTH; | |
905 | } | |
906 | else | |
907 | { | |
908 | entry = XVECTOR (vector)->contents[i + MENU_ITEMS_ITEM_VALUE]; | |
909 | /* The EMACS_INT cast avoids a warning. There's no problem | |
910 | as long as pointers have enough bits to hold small integers. */ | |
911 | if ((int) (EMACS_INT) client_data == i) | |
912 | { | |
913 | int j; | |
914 | struct input_event buf; | |
915 | Lisp_Object frame; | |
916 | EVENT_INIT (buf); | |
917 | ||
918 | XSETFRAME (frame, f); | |
919 | buf.kind = MENU_BAR_EVENT; | |
920 | buf.frame_or_window = frame; | |
921 | buf.arg = frame; | |
922 | kbd_buffer_store_event (&buf); | |
923 | ||
924 | for (j = 0; j < submenu_depth; j++) | |
925 | if (!NILP (subprefix_stack[j])) | |
926 | { | |
927 | buf.kind = MENU_BAR_EVENT; | |
928 | buf.frame_or_window = frame; | |
929 | buf.arg = subprefix_stack[j]; | |
930 | kbd_buffer_store_event (&buf); | |
931 | } | |
932 | ||
933 | if (!NILP (prefix)) | |
934 | { | |
935 | buf.kind = MENU_BAR_EVENT; | |
936 | buf.frame_or_window = frame; | |
937 | buf.arg = prefix; | |
938 | kbd_buffer_store_event (&buf); | |
939 | } | |
940 | ||
941 | buf.kind = MENU_BAR_EVENT; | |
942 | buf.frame_or_window = frame; | |
943 | buf.arg = entry; | |
944 | kbd_buffer_store_event (&buf); | |
945 | ||
946 | return; | |
947 | } | |
948 | i += MENU_ITEMS_ITEM_LENGTH; | |
949 | } | |
950 | } | |
951 | } | |
952 | ||
edfda783 AR |
953 | #endif /* USE_X_TOOLKIT || USE_GTK || HAVE_NS || HAVE_NTGUI */ |
954 | ||
955 | #ifdef HAVE_NS | |
956 | /* As above, but return the menu selection instead of storing in kb buffer. | |
957 | If keymaps==1, return full prefixes to selection. */ | |
958 | Lisp_Object | |
959 | find_and_return_menu_selection (FRAME_PTR f, int keymaps, void *client_data) | |
960 | { | |
961 | Lisp_Object prefix, entry; | |
962 | int i; | |
963 | Lisp_Object *subprefix_stack; | |
964 | int submenu_depth = 0; | |
965 | ||
966 | prefix = entry = Qnil; | |
967 | i = 0; | |
968 | subprefix_stack = | |
969 | (Lisp_Object *)alloca(menu_items_used * sizeof (Lisp_Object)); | |
970 | ||
971 | while (i < menu_items_used) | |
972 | { | |
973 | if (EQ (XVECTOR (menu_items)->contents[i], Qnil)) | |
974 | { | |
975 | subprefix_stack[submenu_depth++] = prefix; | |
976 | prefix = entry; | |
977 | i++; | |
978 | } | |
979 | else if (EQ (XVECTOR (menu_items)->contents[i], Qlambda)) | |
980 | { | |
981 | prefix = subprefix_stack[--submenu_depth]; | |
982 | i++; | |
983 | } | |
984 | else if (EQ (XVECTOR (menu_items)->contents[i], Qt)) | |
985 | { | |
986 | prefix | |
987 | = XVECTOR (menu_items)->contents[i + MENU_ITEMS_PANE_PREFIX]; | |
988 | i += MENU_ITEMS_PANE_LENGTH; | |
989 | } | |
990 | /* Ignore a nil in the item list. | |
991 | It's meaningful only for dialog boxes. */ | |
992 | else if (EQ (XVECTOR (menu_items)->contents[i], Qquote)) | |
993 | i += 1; | |
994 | else | |
995 | { | |
996 | entry | |
997 | = XVECTOR (menu_items)->contents[i + MENU_ITEMS_ITEM_VALUE]; | |
31c2d412 | 998 | if ((EMACS_INT)client_data == (EMACS_INT)(&XVECTOR (menu_items)->contents[i])) |
edfda783 AR |
999 | { |
1000 | if (keymaps != 0) | |
1001 | { | |
1002 | int j; | |
1003 | ||
1004 | entry = Fcons (entry, Qnil); | |
1005 | if (!NILP (prefix)) | |
1006 | entry = Fcons (prefix, entry); | |
1007 | for (j = submenu_depth - 1; j >= 0; j--) | |
1008 | if (!NILP (subprefix_stack[j])) | |
1009 | entry = Fcons (subprefix_stack[j], entry); | |
1010 | } | |
1011 | return entry; | |
1012 | } | |
1013 | i += MENU_ITEMS_ITEM_LENGTH; | |
1014 | } | |
1015 | } | |
facfbbbd | 1016 | return Qnil; |
edfda783 | 1017 | } |
31c2d412 | 1018 | #endif /* HAVE_NS */ |
279a1d4b | 1019 | |
ef7417fd SM |
1020 | DEFUN ("x-popup-menu", Fx_popup_menu, Sx_popup_menu, 2, 2, 0, |
1021 | doc: /* Pop up a deck-of-cards menu and return user's selection. | |
1022 | POSITION is a position specification. This is either a mouse button event | |
1023 | or a list ((XOFFSET YOFFSET) WINDOW) | |
1024 | where XOFFSET and YOFFSET are positions in pixels from the top left | |
1025 | corner of WINDOW. (WINDOW may be a window or a frame object.) | |
1026 | This controls the position of the top left of the menu as a whole. | |
1027 | If POSITION is t, it means to use the current mouse position. | |
1028 | ||
1029 | MENU is a specifier for a menu. For the simplest case, MENU is a keymap. | |
1030 | The menu items come from key bindings that have a menu string as well as | |
1031 | a definition; actually, the "definition" in such a key binding looks like | |
1032 | \(STRING . REAL-DEFINITION). To give the menu a title, put a string into | |
1033 | the keymap as a top-level element. | |
1034 | ||
1035 | If REAL-DEFINITION is nil, that puts a nonselectable string in the menu. | |
1036 | Otherwise, REAL-DEFINITION should be a valid key binding definition. | |
1037 | ||
1038 | You can also use a list of keymaps as MENU. | |
1039 | Then each keymap makes a separate pane. | |
1040 | ||
1041 | When MENU is a keymap or a list of keymaps, the return value is the | |
1042 | list of events corresponding to the user's choice. Note that | |
1043 | `x-popup-menu' does not actually execute the command bound to that | |
1044 | sequence of events. | |
1045 | ||
1046 | Alternatively, you can specify a menu of multiple panes | |
1047 | with a list of the form (TITLE PANE1 PANE2...), | |
1048 | where each pane is a list of form (TITLE ITEM1 ITEM2...). | |
1049 | Each ITEM is normally a cons cell (STRING . VALUE); | |
1050 | but a string can appear as an item--that makes a nonselectable line | |
1051 | in the menu. | |
1052 | With this form of menu, the return value is VALUE from the chosen item. | |
1053 | ||
1054 | If POSITION is nil, don't display the menu at all, just precalculate the | |
1055 | cached information about equivalent key sequences. | |
1056 | ||
1057 | If the user gets rid of the menu without making a valid choice, for | |
1058 | instance by clicking the mouse away from a valid choice or by typing | |
1059 | keyboard input, then this normally results in a quit and | |
1060 | `x-popup-menu' does not return. But if POSITION is a mouse button | |
1061 | event (indicating that the user invoked the menu with the mouse) then | |
1062 | no quit occurs and `x-popup-menu' returns nil. */) | |
5842a27b | 1063 | (Lisp_Object position, Lisp_Object menu) |
ef7417fd SM |
1064 | { |
1065 | Lisp_Object keymap, tem; | |
1066 | int xpos = 0, ypos = 0; | |
1067 | Lisp_Object title; | |
42ca4633 | 1068 | const char *error_name = NULL; |
ef7417fd SM |
1069 | Lisp_Object selection = Qnil; |
1070 | FRAME_PTR f = NULL; | |
1071 | Lisp_Object x, y, window; | |
1072 | int keymaps = 0; | |
1073 | int for_click = 0; | |
1074 | int specpdl_count = SPECPDL_INDEX (); | |
ef7417fd | 1075 | struct gcpro gcpro1; |
ef7417fd | 1076 | |
ef7417fd SM |
1077 | if (NILP (position)) |
1078 | /* This is an obsolete call, which wants us to precompute the | |
1079 | keybinding equivalents, but we don't do that any more anyway. */ | |
1080 | return Qnil; | |
1081 | ||
1082 | #ifdef HAVE_MENUS | |
1083 | { | |
1084 | int get_current_pos_p = 0; | |
1085 | /* FIXME!! check_w32 (); or check_x (); or check_ns (); */ | |
1086 | ||
1087 | /* Decode the first argument: find the window and the coordinates. */ | |
1088 | if (EQ (position, Qt) | |
1089 | || (CONSP (position) && (EQ (XCAR (position), Qmenu_bar) | |
1090 | || EQ (XCAR (position), Qtool_bar)))) | |
1091 | { | |
1092 | get_current_pos_p = 1; | |
1093 | } | |
1094 | else | |
1095 | { | |
1096 | tem = Fcar (position); | |
1097 | if (CONSP (tem)) | |
1098 | { | |
1099 | window = Fcar (Fcdr (position)); | |
1100 | x = XCAR (tem); | |
1101 | y = Fcar (XCDR (tem)); | |
1102 | } | |
1103 | else | |
1104 | { | |
1105 | for_click = 1; | |
1106 | tem = Fcar (Fcdr (position)); /* EVENT_START (position) */ | |
1107 | window = Fcar (tem); /* POSN_WINDOW (tem) */ | |
a6d676d9 CY |
1108 | tem = Fcar (Fcdr (Fcdr (tem))); /* POSN_WINDOW_POSN (tem) */ |
1109 | x = Fcar (tem); | |
1110 | y = Fcdr (tem); | |
ef7417fd SM |
1111 | } |
1112 | ||
1113 | /* If a click happens in an external tool bar or a detached | |
1114 | tool bar, x and y is NIL. In that case, use the current | |
1115 | mouse position. This happens for the help button in the | |
1116 | tool bar. Ideally popup-menu should pass NIL to | |
1117 | this function, but it doesn't. */ | |
1118 | if (NILP (x) && NILP (y)) | |
1119 | get_current_pos_p = 1; | |
1120 | } | |
1121 | ||
1122 | if (get_current_pos_p) | |
1123 | { | |
1124 | /* Use the mouse's current position. */ | |
1125 | FRAME_PTR new_f = SELECTED_FRAME (); | |
1126 | #ifdef HAVE_X_WINDOWS | |
1127 | /* Can't use mouse_position_hook for X since it returns | |
1128 | coordinates relative to the window the mouse is in, | |
1129 | we need coordinates relative to the edit widget always. */ | |
1130 | if (new_f != 0) | |
1131 | { | |
1132 | int cur_x, cur_y; | |
1133 | ||
1134 | mouse_position_for_popup (new_f, &cur_x, &cur_y); | |
1135 | /* cur_x/y may be negative, so use make_number. */ | |
1136 | x = make_number (cur_x); | |
1137 | y = make_number (cur_y); | |
1138 | } | |
1139 | ||
1140 | #else /* not HAVE_X_WINDOWS */ | |
1141 | Lisp_Object bar_window; | |
1142 | enum scroll_bar_part part; | |
1143 | unsigned long time; | |
f57e2426 J |
1144 | void (*mouse_position_hook) (struct frame **, int, |
1145 | Lisp_Object *, | |
1146 | enum scroll_bar_part *, | |
1147 | Lisp_Object *, | |
1148 | Lisp_Object *, | |
1149 | unsigned long *) = | |
ef7417fd SM |
1150 | FRAME_TERMINAL (new_f)->mouse_position_hook; |
1151 | ||
1152 | if (mouse_position_hook) | |
1153 | (*mouse_position_hook) (&new_f, 1, &bar_window, | |
1154 | &part, &x, &y, &time); | |
1155 | #endif /* not HAVE_X_WINDOWS */ | |
1156 | ||
1157 | if (new_f != 0) | |
1158 | XSETFRAME (window, new_f); | |
1159 | else | |
1160 | { | |
1161 | window = selected_window; | |
1162 | XSETFASTINT (x, 0); | |
1163 | XSETFASTINT (y, 0); | |
1164 | } | |
1165 | } | |
1166 | ||
1167 | CHECK_NUMBER (x); | |
1168 | CHECK_NUMBER (y); | |
1169 | ||
1170 | /* Decode where to put the menu. */ | |
1171 | ||
1172 | if (FRAMEP (window)) | |
1173 | { | |
1174 | f = XFRAME (window); | |
1175 | xpos = 0; | |
1176 | ypos = 0; | |
1177 | } | |
1178 | else if (WINDOWP (window)) | |
1179 | { | |
1180 | struct window *win = XWINDOW (window); | |
1181 | CHECK_LIVE_WINDOW (window); | |
1182 | f = XFRAME (WINDOW_FRAME (win)); | |
1183 | ||
ef7417fd SM |
1184 | xpos = WINDOW_LEFT_EDGE_X (win); |
1185 | ypos = WINDOW_TOP_EDGE_Y (win); | |
ef7417fd SM |
1186 | } |
1187 | else | |
1188 | /* ??? Not really clean; should be CHECK_WINDOW_OR_FRAME, | |
1189 | but I don't want to make one now. */ | |
1190 | CHECK_WINDOW (window); | |
1191 | ||
1192 | xpos += XINT (x); | |
1193 | ypos += XINT (y); | |
1194 | ||
1195 | /* FIXME: Find a more general check! */ | |
1196 | if (!(FRAME_X_P (f) || FRAME_MSDOS_P (f) | |
1197 | || FRAME_W32_P (f) || FRAME_NS_P (f))) | |
1198 | error ("Can not put GUI menu on this terminal"); | |
1199 | ||
1200 | XSETFRAME (Vmenu_updating_frame, f); | |
1201 | } | |
1202 | #endif /* HAVE_MENUS */ | |
1203 | ||
1204 | /* Now parse the lisp menus. */ | |
1205 | record_unwind_protect (unuse_menu_items, Qnil); | |
1206 | ||
1207 | title = Qnil; | |
1208 | GCPRO1 (title); | |
1209 | ||
1210 | /* Decode the menu items from what was specified. */ | |
1211 | ||
1212 | keymap = get_keymap (menu, 0, 0); | |
1213 | if (CONSP (keymap)) | |
1214 | { | |
1215 | /* We were given a keymap. Extract menu info from the keymap. */ | |
1216 | Lisp_Object prompt; | |
1217 | ||
1218 | /* Extract the detailed info to make one pane. */ | |
1219 | keymap_panes (&menu, 1); | |
1220 | ||
1221 | /* Search for a string appearing directly as an element of the keymap. | |
1222 | That string is the title of the menu. */ | |
1223 | prompt = Fkeymap_prompt (keymap); | |
1224 | if (!NILP (prompt)) | |
1225 | title = prompt; | |
1226 | #ifdef HAVE_NS /* Is that needed and NS-specific? --Stef */ | |
1227 | else | |
1228 | title = build_string ("Select"); | |
1229 | #endif | |
1230 | ||
1231 | /* Make that be the pane title of the first pane. */ | |
1232 | if (!NILP (prompt) && menu_items_n_panes >= 0) | |
1233 | ASET (menu_items, MENU_ITEMS_PANE_NAME, prompt); | |
1234 | ||
1235 | keymaps = 1; | |
1236 | } | |
1237 | else if (CONSP (menu) && KEYMAPP (XCAR (menu))) | |
1238 | { | |
1239 | /* We were given a list of keymaps. */ | |
1240 | int nmaps = XFASTINT (Flength (menu)); | |
1241 | Lisp_Object *maps | |
1242 | = (Lisp_Object *) alloca (nmaps * sizeof (Lisp_Object)); | |
1243 | int i; | |
1244 | ||
1245 | title = Qnil; | |
1246 | ||
1247 | /* The first keymap that has a prompt string | |
1248 | supplies the menu title. */ | |
1249 | for (tem = menu, i = 0; CONSP (tem); tem = XCDR (tem)) | |
1250 | { | |
1251 | Lisp_Object prompt; | |
1252 | ||
1253 | maps[i++] = keymap = get_keymap (XCAR (tem), 1, 0); | |
1254 | ||
1255 | prompt = Fkeymap_prompt (keymap); | |
1256 | if (NILP (title) && !NILP (prompt)) | |
1257 | title = prompt; | |
1258 | } | |
1259 | ||
1260 | /* Extract the detailed info to make one pane. */ | |
1261 | keymap_panes (maps, nmaps); | |
1262 | ||
1263 | /* Make the title be the pane title of the first pane. */ | |
1264 | if (!NILP (title) && menu_items_n_panes >= 0) | |
1265 | ASET (menu_items, MENU_ITEMS_PANE_NAME, title); | |
1266 | ||
1267 | keymaps = 1; | |
1268 | } | |
1269 | else | |
1270 | { | |
1271 | /* We were given an old-fashioned menu. */ | |
1272 | title = Fcar (menu); | |
1273 | CHECK_STRING (title); | |
1274 | ||
1275 | list_of_panes (Fcdr (menu)); | |
1276 | ||
1277 | keymaps = 0; | |
1278 | } | |
1279 | ||
1280 | unbind_to (specpdl_count, Qnil); | |
1281 | ||
1282 | #ifdef HAVE_MENUS | |
dc92c039 | 1283 | #ifdef HAVE_WINDOW_SYSTEM |
ef7417fd SM |
1284 | /* Hide a previous tip, if any. */ |
1285 | Fx_hide_tip (); | |
dc92c039 | 1286 | #endif |
ef7417fd SM |
1287 | |
1288 | #ifdef HAVE_NTGUI /* FIXME: Is it really w32-specific? --Stef */ | |
1289 | /* If resources from a previous popup menu still exist, does nothing | |
1290 | until the `menu_free_timer' has freed them (see w32fns.c). This | |
1291 | can occur if you press ESC or click outside a menu without selecting | |
1292 | a menu item. | |
1293 | */ | |
1294 | if (current_popup_menu) | |
1295 | { | |
1296 | discard_menu_items (); | |
1297 | FRAME_X_DISPLAY_INFO (f)->grabbed = 0; | |
1298 | UNGCPRO; | |
1299 | return Qnil; | |
1300 | } | |
1301 | #endif | |
1302 | ||
1303 | #ifdef HAVE_NS /* FIXME: ns-specific, why? --Stef */ | |
1304 | record_unwind_protect (cleanup_popup_menu, Qnil); | |
1305 | #endif | |
1306 | ||
1307 | /* Display them in a menu. */ | |
1308 | BLOCK_INPUT; | |
1309 | ||
1310 | /* FIXME: Use a terminal hook! */ | |
1311 | #if defined HAVE_NTGUI | |
1312 | selection = w32_menu_show (f, xpos, ypos, for_click, | |
1313 | keymaps, title, &error_name); | |
1314 | #elif defined HAVE_NS | |
1315 | selection = ns_menu_show (f, xpos, ypos, for_click, | |
1316 | keymaps, title, &error_name); | |
1317 | #else /* MSDOS and X11 */ | |
a6d676d9 CY |
1318 | /* Assume last_event_timestamp is the timestamp of the button event. |
1319 | Is this assumption ever violated? We can't use the timestamp | |
1320 | stored within POSITION because there the top bits from the actual | |
1321 | timestamp may be truncated away (Bug#4930). */ | |
ef7417fd SM |
1322 | selection = xmenu_show (f, xpos, ypos, for_click, |
1323 | keymaps, title, &error_name, | |
a6d676d9 | 1324 | last_event_timestamp); |
ef7417fd SM |
1325 | #endif |
1326 | ||
1327 | UNBLOCK_INPUT; | |
1328 | ||
1329 | #ifdef HAVE_NS | |
1330 | unbind_to (specpdl_count, Qnil); | |
1331 | #else | |
1332 | discard_menu_items (); | |
1333 | #endif | |
1334 | ||
1335 | #ifdef HAVE_NTGUI /* FIXME: Is it really w32-specific? --Stef */ | |
1336 | FRAME_X_DISPLAY_INFO (f)->grabbed = 0; | |
1337 | #endif | |
1338 | ||
1339 | #endif /* HAVE_MENUS */ | |
1340 | ||
1341 | UNGCPRO; | |
1342 | ||
1343 | if (error_name) error (error_name); | |
1344 | return selection; | |
1345 | } | |
1346 | ||
279a1d4b | 1347 | void |
971de7fb | 1348 | syms_of_menu (void) |
279a1d4b CY |
1349 | { |
1350 | staticpro (&menu_items); | |
1351 | menu_items = Qnil; | |
1352 | menu_items_inuse = Qnil; | |
ef7417fd SM |
1353 | |
1354 | defsubr (&Sx_popup_menu); | |
279a1d4b | 1355 | } |