Commit | Line | Data |
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279a1d4b | 1 | /* Platform-independent code for terminal communications. |
95df8112 | 2 | |
ba318903 | 3 | Copyright (C) 1986, 1988, 1993-1994, 1996, 1999-2014 Free Software |
ab422c4d | 4 | 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> | |
3c24731f | 23 | #include <limits.h> /* for INT_MAX */ |
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" | |
401cf890 | 33 | #include "buffer.h" |
279a1d4b CY |
34 | |
35 | #ifdef USE_X_TOOLKIT | |
36 | #include "../lwlib/lwlib.h" | |
37 | #endif | |
38 | ||
17a2cbbd DC |
39 | #ifdef HAVE_WINDOW_SYSTEM |
40 | #include TERM_HEADER | |
41 | #endif /* HAVE_WINDOW_SYSTEM */ | |
279a1d4b CY |
42 | |
43 | #ifdef HAVE_NTGUI | |
0fda9b75 DC |
44 | # ifdef NTGUI_UNICODE |
45 | # define unicode_append_menu AppendMenuW | |
46 | # else /* !NTGUI_UNICODE */ | |
279a1d4b | 47 | extern AppendMenuW_Proc unicode_append_menu; |
0fda9b75 | 48 | # endif /* NTGUI_UNICODE */ |
04e452cb | 49 | extern HMENU current_popup_menu; |
279a1d4b CY |
50 | #endif /* HAVE_NTGUI */ |
51 | ||
e7c9048f | 52 | #include "menu.h" |
279a1d4b | 53 | |
f1303b52 EZ |
54 | /* Return non-zero if menus can handle radio and toggle buttons. */ |
55 | static bool | |
56 | have_boxes (void) | |
57 | { | |
b911a94d | 58 | #if defined (USE_X_TOOLKIT) || defined (USE_GTK) || defined (HAVE_NTGUI) || defined(HAVE_NS) |
f1303b52 EZ |
59 | if (FRAME_WINDOW_P (XFRAME (Vmenu_updating_frame))) |
60 | return 1; | |
279a1d4b | 61 | #endif |
f1303b52 EZ |
62 | return 0; |
63 | } | |
279a1d4b | 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 | ||
27e498e6 PE |
109 | void |
110 | unuse_menu_items (void) | |
279a1d4b | 111 | { |
27e498e6 | 112 | menu_items_inuse = Qnil; |
279a1d4b CY |
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 | } | |
a54e2c05 | 128 | eassert (NILP (menu_items_inuse)); |
279a1d4b CY |
129 | } |
130 | ||
131 | /* This undoes save_menu_items, and it is called by the specpdl unwind | |
132 | mechanism. */ | |
133 | ||
27e498e6 | 134 | static void |
971de7fb | 135 | restore_menu_items (Lisp_Object saved) |
279a1d4b CY |
136 | { |
137 | menu_items = XCAR (saved); | |
138 | menu_items_inuse = (! NILP (menu_items) ? Qt : Qnil); | |
139 | menu_items_allocated = (VECTORP (menu_items) ? ASIZE (menu_items) : 0); | |
140 | saved = XCDR (saved); | |
141 | menu_items_used = XINT (XCAR (saved)); | |
142 | saved = XCDR (saved); | |
143 | menu_items_n_panes = XINT (XCAR (saved)); | |
144 | saved = XCDR (saved); | |
145 | menu_items_submenu_depth = XINT (XCAR (saved)); | |
279a1d4b CY |
146 | } |
147 | ||
148 | /* Push the whole state of menu_items processing onto the specpdl. | |
149 | It will be restored when the specpdl is unwound. */ | |
150 | ||
151 | void | |
971de7fb | 152 | save_menu_items (void) |
279a1d4b CY |
153 | { |
154 | Lisp_Object saved = list4 (!NILP (menu_items_inuse) ? menu_items : Qnil, | |
155 | make_number (menu_items_used), | |
156 | make_number (menu_items_n_panes), | |
157 | make_number (menu_items_submenu_depth)); | |
158 | record_unwind_protect (restore_menu_items, saved); | |
159 | menu_items_inuse = Qnil; | |
160 | menu_items = Qnil; | |
161 | } | |
162 | ||
163 | \f | |
d311d28c | 164 | /* Ensure that there is room for ITEMS items in the menu_items vector. */ |
279a1d4b CY |
165 | |
166 | static void | |
d311d28c | 167 | ensure_menu_items (int items) |
279a1d4b | 168 | { |
d311d28c | 169 | int incr = items - (menu_items_allocated - menu_items_used); |
908589fd | 170 | if (incr > 0) |
d311d28c PE |
171 | { |
172 | menu_items = larger_vector (menu_items, incr, INT_MAX); | |
173 | menu_items_allocated = ASIZE (menu_items); | |
174 | } | |
279a1d4b CY |
175 | } |
176 | ||
60d9e1db PE |
177 | #if (defined USE_X_TOOLKIT || defined USE_GTK || defined HAVE_NS \ |
178 | || defined HAVE_NTGUI) | |
179 | ||
279a1d4b CY |
180 | /* Begin a submenu. */ |
181 | ||
182 | static void | |
971de7fb | 183 | push_submenu_start (void) |
279a1d4b | 184 | { |
d311d28c | 185 | ensure_menu_items (1); |
fb7da12e AS |
186 | ASET (menu_items, menu_items_used, Qnil); |
187 | menu_items_used++; | |
279a1d4b CY |
188 | menu_items_submenu_depth++; |
189 | } | |
190 | ||
191 | /* End a submenu. */ | |
192 | ||
193 | static void | |
971de7fb | 194 | push_submenu_end (void) |
279a1d4b | 195 | { |
d311d28c | 196 | ensure_menu_items (1); |
fb7da12e AS |
197 | ASET (menu_items, menu_items_used, Qlambda); |
198 | menu_items_used++; | |
279a1d4b CY |
199 | menu_items_submenu_depth--; |
200 | } | |
201 | ||
60d9e1db PE |
202 | #endif /* USE_X_TOOLKIT || USE_GTK || HAVE_NS || defined HAVE_NTGUI */ |
203 | ||
279a1d4b CY |
204 | /* Indicate boundary between left and right. */ |
205 | ||
206 | static void | |
971de7fb | 207 | push_left_right_boundary (void) |
279a1d4b | 208 | { |
d311d28c | 209 | ensure_menu_items (1); |
fb7da12e AS |
210 | ASET (menu_items, menu_items_used, Qquote); |
211 | menu_items_used++; | |
279a1d4b CY |
212 | } |
213 | ||
214 | /* Start a new menu pane in menu_items. | |
215 | NAME is the pane name. PREFIX_VEC is a prefix key for this pane. */ | |
216 | ||
593c843c | 217 | static void |
971de7fb | 218 | push_menu_pane (Lisp_Object name, Lisp_Object prefix_vec) |
279a1d4b | 219 | { |
d311d28c | 220 | ensure_menu_items (MENU_ITEMS_PANE_LENGTH); |
279a1d4b CY |
221 | if (menu_items_submenu_depth == 0) |
222 | menu_items_n_panes++; | |
fb7da12e AS |
223 | ASET (menu_items, menu_items_used, Qt); |
224 | menu_items_used++; | |
225 | ASET (menu_items, menu_items_used, name); | |
226 | menu_items_used++; | |
227 | ASET (menu_items, menu_items_used, prefix_vec); | |
228 | menu_items_used++; | |
279a1d4b CY |
229 | } |
230 | ||
231 | /* Push one menu item into the current pane. NAME is the string to | |
232 | display. ENABLE if non-nil means this item can be selected. KEY | |
233 | is the key generated by choosing this item, or nil if this item | |
234 | doesn't really have a definition. DEF is the definition of this | |
235 | item. EQUIV is the textual description of the keyboard equivalent | |
236 | for this item (or nil if none). TYPE is the type of this menu | |
237 | item, one of nil, `toggle' or `radio'. */ | |
238 | ||
593c843c | 239 | static void |
971de7fb | 240 | 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 | 241 | { |
d311d28c | 242 | ensure_menu_items (MENU_ITEMS_ITEM_LENGTH); |
279a1d4b | 243 | |
b7c7a4d1 SM |
244 | ASET (menu_items, menu_items_used + MENU_ITEMS_ITEM_NAME, name); |
245 | ASET (menu_items, menu_items_used + MENU_ITEMS_ITEM_ENABLE, enable); | |
246 | ASET (menu_items, menu_items_used + MENU_ITEMS_ITEM_VALUE, key); | |
247 | ASET (menu_items, menu_items_used + MENU_ITEMS_ITEM_EQUIV_KEY, equiv); | |
248 | ASET (menu_items, menu_items_used + MENU_ITEMS_ITEM_DEFINITION, def); | |
249 | ASET (menu_items, menu_items_used + MENU_ITEMS_ITEM_TYPE, type); | |
250 | ASET (menu_items, menu_items_used + MENU_ITEMS_ITEM_SELECTED, selected); | |
251 | ASET (menu_items, menu_items_used + MENU_ITEMS_ITEM_HELP, help); | |
252 | ||
253 | menu_items_used += MENU_ITEMS_ITEM_LENGTH; | |
279a1d4b CY |
254 | } |
255 | ||
256 | /* Args passed between single_keymap_panes and single_menu_item. */ | |
257 | struct skp | |
258 | { | |
259 | Lisp_Object pending_maps; | |
ef7417fd | 260 | int maxdepth; |
279a1d4b CY |
261 | int notbuttons; |
262 | }; | |
263 | ||
f57e2426 J |
264 | static void single_menu_item (Lisp_Object, Lisp_Object, Lisp_Object, |
265 | void *); | |
279a1d4b CY |
266 | |
267 | /* This is a recursive subroutine of keymap_panes. | |
268 | It handles one keymap, KEYMAP. | |
269 | The other arguments are passed along | |
270 | or point to local variables of the previous function. | |
279a1d4b CY |
271 | |
272 | If we encounter submenus deeper than MAXDEPTH levels, ignore them. */ | |
273 | ||
593c843c | 274 | static void |
ef7417fd SM |
275 | single_keymap_panes (Lisp_Object keymap, Lisp_Object pane_name, |
276 | Lisp_Object prefix, int maxdepth) | |
279a1d4b CY |
277 | { |
278 | struct skp skp; | |
279 | struct gcpro gcpro1; | |
280 | ||
281 | skp.pending_maps = Qnil; | |
282 | skp.maxdepth = maxdepth; | |
279a1d4b CY |
283 | skp.notbuttons = 0; |
284 | ||
285 | if (maxdepth <= 0) | |
286 | return; | |
287 | ||
288 | push_menu_pane (pane_name, prefix); | |
289 | ||
f1303b52 EZ |
290 | if (!have_boxes ()) |
291 | { | |
292 | /* Remember index for first item in this pane so we can go back | |
293 | and add a prefix when (if) we see the first button. After | |
294 | that, notbuttons is set to 0, to mark that we have seen a | |
295 | button and all non button items need a prefix. */ | |
296 | skp.notbuttons = menu_items_used; | |
297 | } | |
279a1d4b CY |
298 | |
299 | GCPRO1 (skp.pending_maps); | |
300 | map_keymap_canonical (keymap, single_menu_item, Qnil, &skp); | |
301 | UNGCPRO; | |
302 | ||
303 | /* Process now any submenus which want to be panes at this level. */ | |
304 | while (CONSP (skp.pending_maps)) | |
305 | { | |
306 | Lisp_Object elt, eltcdr, string; | |
307 | elt = XCAR (skp.pending_maps); | |
308 | eltcdr = XCDR (elt); | |
309 | string = XCAR (eltcdr); | |
310 | /* We no longer discard the @ from the beginning of the string here. | |
311 | Instead, we do this in *menu_show. */ | |
ef7417fd | 312 | single_keymap_panes (Fcar (elt), string, XCDR (eltcdr), maxdepth - 1); |
279a1d4b CY |
313 | skp.pending_maps = XCDR (skp.pending_maps); |
314 | } | |
315 | } | |
316 | ||
317 | /* This is a subroutine of single_keymap_panes that handles one | |
318 | keymap entry. | |
319 | KEY is a key in a keymap and ITEM is its binding. | |
320 | SKP->PENDING_MAPS_PTR is a list of keymaps waiting to be made into | |
321 | separate panes. | |
279a1d4b CY |
322 | If we encounter submenus deeper than SKP->MAXDEPTH levels, ignore them. */ |
323 | ||
324 | static void | |
971de7fb | 325 | single_menu_item (Lisp_Object key, Lisp_Object item, Lisp_Object dummy, void *skp_v) |
279a1d4b CY |
326 | { |
327 | Lisp_Object map, item_string, enabled; | |
328 | struct gcpro gcpro1, gcpro2; | |
9fa1de30 | 329 | bool res; |
279a1d4b CY |
330 | struct skp *skp = skp_v; |
331 | ||
332 | /* Parse the menu item and leave the result in item_properties. */ | |
333 | GCPRO2 (key, item); | |
ef7417fd | 334 | res = parse_menu_item (item, 0); |
279a1d4b CY |
335 | UNGCPRO; |
336 | if (!res) | |
337 | return; /* Not a menu item. */ | |
338 | ||
28be1ada | 339 | map = AREF (item_properties, ITEM_PROPERTY_MAP); |
279a1d4b | 340 | |
28be1ada DA |
341 | enabled = AREF (item_properties, ITEM_PROPERTY_ENABLE); |
342 | item_string = AREF (item_properties, ITEM_PROPERTY_NAME); | |
279a1d4b CY |
343 | |
344 | if (!NILP (map) && SREF (item_string, 0) == '@') | |
345 | { | |
346 | if (!NILP (enabled)) | |
347 | /* An enabled separate pane. Remember this to handle it later. */ | |
348 | skp->pending_maps = Fcons (Fcons (map, Fcons (item_string, key)), | |
349 | skp->pending_maps); | |
350 | return; | |
351 | } | |
352 | ||
279a1d4b CY |
353 | /* Simulate radio buttons and toggle boxes by putting a prefix in |
354 | front of them. */ | |
f1303b52 EZ |
355 | if (!have_boxes ()) |
356 | { | |
357 | Lisp_Object prefix = Qnil; | |
358 | Lisp_Object type = AREF (item_properties, ITEM_PROPERTY_TYPE); | |
359 | if (!NILP (type)) | |
360 | { | |
361 | Lisp_Object selected | |
362 | = AREF (item_properties, ITEM_PROPERTY_SELECTED); | |
363 | ||
364 | if (skp->notbuttons) | |
365 | /* The first button. Line up previous items in this menu. */ | |
366 | { | |
367 | int idx = skp->notbuttons; /* Index for first item this menu. */ | |
368 | int submenu = 0; | |
369 | Lisp_Object tem; | |
370 | while (idx < menu_items_used) | |
371 | { | |
372 | tem | |
373 | = AREF (menu_items, idx + MENU_ITEMS_ITEM_NAME); | |
374 | if (NILP (tem)) | |
375 | { | |
376 | idx++; | |
377 | submenu++; /* Skip sub menu. */ | |
378 | } | |
379 | else if (EQ (tem, Qlambda)) | |
380 | { | |
381 | idx++; | |
382 | submenu--; /* End sub menu. */ | |
383 | } | |
384 | else if (EQ (tem, Qt)) | |
385 | idx += 3; /* Skip new pane marker. */ | |
386 | else if (EQ (tem, Qquote)) | |
387 | idx++; /* Skip a left, right divider. */ | |
388 | else | |
389 | { | |
390 | if (!submenu && SREF (tem, 0) != '\0' | |
391 | && SREF (tem, 0) != '-') | |
392 | ASET (menu_items, idx + MENU_ITEMS_ITEM_NAME, | |
393 | concat2 (build_string (" "), tem)); | |
394 | idx += MENU_ITEMS_ITEM_LENGTH; | |
395 | } | |
396 | } | |
397 | skp->notbuttons = 0; | |
398 | } | |
399 | ||
400 | /* Calculate prefix, if any, for this item. */ | |
401 | if (EQ (type, QCtoggle)) | |
402 | prefix = build_string (NILP (selected) ? "[ ] " : "[X] "); | |
403 | else if (EQ (type, QCradio)) | |
404 | prefix = build_string (NILP (selected) ? "( ) " : "(*) "); | |
405 | } | |
406 | /* Not a button. If we have earlier buttons, then we need a prefix. */ | |
407 | else if (!skp->notbuttons && SREF (item_string, 0) != '\0' | |
408 | && SREF (item_string, 0) != '-') | |
409 | prefix = build_string (" "); | |
410 | ||
411 | if (!NILP (prefix)) | |
412 | item_string = concat2 (prefix, item_string); | |
279a1d4b | 413 | } |
279a1d4b | 414 | |
bf6b4923 EZ |
415 | if ((FRAME_TERMCAP_P (XFRAME (Vmenu_updating_frame)) |
416 | || FRAME_MSDOS_P (XFRAME (Vmenu_updating_frame))) | |
f1303b52 | 417 | && !NILP (map)) |
279a1d4b CY |
418 | /* Indicate visually that this is a submenu. */ |
419 | item_string = concat2 (item_string, build_string (" >")); | |
279a1d4b CY |
420 | |
421 | push_menu_item (item_string, enabled, key, | |
28be1ada DA |
422 | AREF (item_properties, ITEM_PROPERTY_DEF), |
423 | AREF (item_properties, ITEM_PROPERTY_KEYEQ), | |
424 | AREF (item_properties, ITEM_PROPERTY_TYPE), | |
425 | AREF (item_properties, ITEM_PROPERTY_SELECTED), | |
426 | AREF (item_properties, ITEM_PROPERTY_HELP)); | |
279a1d4b | 427 | |
edfda783 | 428 | #if defined (USE_X_TOOLKIT) || defined (USE_GTK) || defined (HAVE_NS) || defined (HAVE_NTGUI) |
279a1d4b | 429 | /* Display a submenu using the toolkit. */ |
f1303b52 EZ |
430 | if (FRAME_WINDOW_P (XFRAME (Vmenu_updating_frame)) |
431 | && ! (NILP (map) || NILP (enabled))) | |
279a1d4b CY |
432 | { |
433 | push_submenu_start (); | |
ef7417fd | 434 | single_keymap_panes (map, Qnil, key, skp->maxdepth - 1); |
279a1d4b CY |
435 | push_submenu_end (); |
436 | } | |
437 | #endif | |
438 | } | |
439 | ||
440 | /* Look through KEYMAPS, a vector of keymaps that is NMAPS long, | |
ef7417fd | 441 | and generate menu panes for them in menu_items. */ |
279a1d4b | 442 | |
ef7417fd | 443 | static void |
d311d28c | 444 | keymap_panes (Lisp_Object *keymaps, ptrdiff_t nmaps) |
279a1d4b | 445 | { |
d311d28c | 446 | ptrdiff_t mapno; |
279a1d4b CY |
447 | |
448 | init_menu_items (); | |
449 | ||
450 | /* Loop over the given keymaps, making a pane for each map. | |
451 | But don't make a pane that is empty--ignore that map instead. | |
452 | P is the number of panes we have made so far. */ | |
453 | for (mapno = 0; mapno < nmaps; mapno++) | |
454 | single_keymap_panes (keymaps[mapno], | |
ef7417fd | 455 | Fkeymap_prompt (keymaps[mapno]), Qnil, 10); |
279a1d4b CY |
456 | |
457 | finish_menu_items (); | |
458 | } | |
459 | ||
06284c32 EZ |
460 | /* Encode a menu string as appropriate for menu-updating-frame's type. */ |
461 | static Lisp_Object | |
462 | encode_menu_string (Lisp_Object str) | |
463 | { | |
464 | /* TTY menu strings are encoded by write_glyphs, when they are | |
465 | delivered to the glass, so no need to encode them here. */ | |
466 | if (FRAME_TERMCAP_P (XFRAME (Vmenu_updating_frame))) | |
467 | return str; | |
468 | return ENCODE_MENU_STRING (str); | |
469 | } | |
279a1d4b CY |
470 | |
471 | /* Push the items in a single pane defined by the alist PANE. */ | |
472 | static void | |
971de7fb | 473 | list_of_items (Lisp_Object pane) |
279a1d4b CY |
474 | { |
475 | Lisp_Object tail, item, item1; | |
476 | ||
477 | for (tail = pane; CONSP (tail); tail = XCDR (tail)) | |
478 | { | |
479 | item = XCAR (tail); | |
480 | if (STRINGP (item)) | |
06284c32 | 481 | push_menu_item (encode_menu_string (item), Qnil, Qnil, Qt, |
279a1d4b CY |
482 | Qnil, Qnil, Qnil, Qnil); |
483 | else if (CONSP (item)) | |
484 | { | |
485 | item1 = XCAR (item); | |
486 | CHECK_STRING (item1); | |
06284c32 | 487 | push_menu_item (encode_menu_string (item1), Qt, XCDR (item), |
279a1d4b CY |
488 | Qt, Qnil, Qnil, Qnil, Qnil); |
489 | } | |
490 | else | |
491 | push_left_right_boundary (); | |
492 | ||
493 | } | |
494 | } | |
495 | ||
496 | /* Push all the panes and items of a menu described by the | |
497 | alist-of-alists MENU. | |
498 | This handles old-fashioned calls to x-popup-menu. */ | |
499 | void | |
971de7fb | 500 | list_of_panes (Lisp_Object menu) |
279a1d4b CY |
501 | { |
502 | Lisp_Object tail; | |
503 | ||
504 | init_menu_items (); | |
505 | ||
506 | for (tail = menu; CONSP (tail); tail = XCDR (tail)) | |
507 | { | |
508 | Lisp_Object elt, pane_name, pane_data; | |
509 | elt = XCAR (tail); | |
510 | pane_name = Fcar (elt); | |
511 | CHECK_STRING (pane_name); | |
06284c32 | 512 | push_menu_pane (encode_menu_string (pane_name), Qnil); |
279a1d4b CY |
513 | pane_data = Fcdr (elt); |
514 | CHECK_CONS (pane_data); | |
515 | list_of_items (pane_data); | |
516 | } | |
517 | ||
518 | finish_menu_items (); | |
519 | } | |
520 | ||
521 | /* Set up data in menu_items for a menu bar item | |
522 | whose event type is ITEM_KEY (with string ITEM_NAME) | |
523 | and whose contents come from the list of keymaps MAPS. */ | |
7cded46f PE |
524 | bool |
525 | parse_single_submenu (Lisp_Object item_key, Lisp_Object item_name, | |
526 | Lisp_Object maps) | |
279a1d4b CY |
527 | { |
528 | Lisp_Object length; | |
d311d28c | 529 | EMACS_INT len; |
279a1d4b | 530 | Lisp_Object *mapvec; |
d311d28c | 531 | ptrdiff_t i; |
7cded46f | 532 | bool top_level_items = 0; |
d311d28c | 533 | USE_SAFE_ALLOCA; |
279a1d4b CY |
534 | |
535 | length = Flength (maps); | |
536 | len = XINT (length); | |
537 | ||
538 | /* Convert the list MAPS into a vector MAPVEC. */ | |
d311d28c | 539 | SAFE_ALLOCA_LISP (mapvec, len); |
279a1d4b CY |
540 | for (i = 0; i < len; i++) |
541 | { | |
542 | mapvec[i] = Fcar (maps); | |
543 | maps = Fcdr (maps); | |
544 | } | |
545 | ||
546 | /* Loop over the given keymaps, making a pane for each map. | |
547 | But don't make a pane that is empty--ignore that map instead. */ | |
548 | for (i = 0; i < len; i++) | |
549 | { | |
550 | if (!KEYMAPP (mapvec[i])) | |
551 | { | |
552 | /* Here we have a command at top level in the menu bar | |
553 | as opposed to a submenu. */ | |
554 | top_level_items = 1; | |
555 | push_menu_pane (Qnil, Qnil); | |
556 | push_menu_item (item_name, Qt, item_key, mapvec[i], | |
557 | Qnil, Qnil, Qnil, Qnil); | |
558 | } | |
559 | else | |
560 | { | |
561 | Lisp_Object prompt; | |
562 | prompt = Fkeymap_prompt (mapvec[i]); | |
563 | single_keymap_panes (mapvec[i], | |
564 | !NILP (prompt) ? prompt : item_name, | |
ef7417fd | 565 | item_key, 10); |
279a1d4b CY |
566 | } |
567 | } | |
568 | ||
d311d28c | 569 | SAFE_FREE (); |
279a1d4b CY |
570 | return top_level_items; |
571 | } | |
572 | ||
573 | \f | |
edfda783 | 574 | #if defined (USE_X_TOOLKIT) || defined (USE_GTK) || defined (HAVE_NS) || defined (HAVE_NTGUI) |
279a1d4b | 575 | |
5668fb88 | 576 | /* Allocate and basically initialize widget_value, blocking input. */ |
279a1d4b CY |
577 | |
578 | widget_value * | |
5668fb88 DA |
579 | make_widget_value (const char *name, char *value, |
580 | bool enabled, Lisp_Object help) | |
279a1d4b | 581 | { |
5668fb88 | 582 | widget_value *wv; |
279a1d4b | 583 | |
4d7e6e51 | 584 | block_input (); |
5668fb88 | 585 | wv = xzalloc (sizeof (widget_value)); |
4d7e6e51 | 586 | unblock_input (); |
279a1d4b | 587 | |
5668fb88 DA |
588 | wv->name = (char *) name; |
589 | wv->value = value; | |
590 | wv->enabled = enabled; | |
591 | wv->help = help; | |
592 | return wv; | |
279a1d4b CY |
593 | } |
594 | ||
5668fb88 | 595 | /* This recursively calls xfree on the tree of widgets. |
279a1d4b CY |
596 | It must free all data that was malloc'ed for these widget_values. |
597 | In Emacs, many slots are pointers into the data of Lisp_Strings, and | |
598 | must be left alone. */ | |
599 | ||
600 | void | |
971de7fb | 601 | free_menubar_widget_value_tree (widget_value *wv) |
279a1d4b CY |
602 | { |
603 | if (! wv) return; | |
604 | ||
605 | wv->name = wv->value = wv->key = (char *) 0xDEADBEEF; | |
606 | ||
607 | if (wv->contents && (wv->contents != (widget_value*)1)) | |
608 | { | |
609 | free_menubar_widget_value_tree (wv->contents); | |
610 | wv->contents = (widget_value *) 0xDEADBEEF; | |
611 | } | |
612 | if (wv->next) | |
613 | { | |
614 | free_menubar_widget_value_tree (wv->next); | |
615 | wv->next = (widget_value *) 0xDEADBEEF; | |
616 | } | |
4d7e6e51 | 617 | block_input (); |
5668fb88 | 618 | xfree (wv); |
4d7e6e51 | 619 | unblock_input (); |
279a1d4b CY |
620 | } |
621 | ||
622 | /* Create a tree of widget_value objects | |
623 | representing the panes and items | |
624 | in menu_items starting at index START, up to index END. */ | |
625 | ||
626 | widget_value * | |
7cded46f | 627 | digest_single_submenu (int start, int end, bool top_level_items) |
279a1d4b CY |
628 | { |
629 | widget_value *wv, *prev_wv, *save_wv, *first_wv; | |
630 | int i; | |
631 | int submenu_depth = 0; | |
632 | widget_value **submenu_stack; | |
7cded46f | 633 | bool panes_seen = 0; |
06284c32 | 634 | struct frame *f = XFRAME (Vmenu_updating_frame); |
279a1d4b | 635 | |
38182d90 | 636 | submenu_stack = alloca (menu_items_used * sizeof *submenu_stack); |
5668fb88 | 637 | wv = make_widget_value ("menu", NULL, true, Qnil); |
279a1d4b | 638 | wv->button_type = BUTTON_TYPE_NONE; |
279a1d4b CY |
639 | first_wv = wv; |
640 | save_wv = 0; | |
641 | prev_wv = 0; | |
642 | ||
643 | /* Loop over all panes and items made by the preceding call | |
644 | to parse_single_submenu and construct a tree of widget_value objects. | |
645 | Ignore the panes and items used by previous calls to | |
646 | digest_single_submenu, even though those are also in menu_items. */ | |
647 | i = start; | |
648 | while (i < end) | |
649 | { | |
28be1ada | 650 | if (EQ (AREF (menu_items, i), Qnil)) |
279a1d4b CY |
651 | { |
652 | submenu_stack[submenu_depth++] = save_wv; | |
653 | save_wv = prev_wv; | |
654 | prev_wv = 0; | |
655 | i++; | |
656 | } | |
28be1ada | 657 | else if (EQ (AREF (menu_items, i), Qlambda)) |
279a1d4b CY |
658 | { |
659 | prev_wv = save_wv; | |
660 | save_wv = submenu_stack[--submenu_depth]; | |
661 | i++; | |
662 | } | |
28be1ada | 663 | else if (EQ (AREF (menu_items, i), Qt) |
279a1d4b CY |
664 | && submenu_depth != 0) |
665 | i += MENU_ITEMS_PANE_LENGTH; | |
666 | /* Ignore a nil in the item list. | |
667 | It's meaningful only for dialog boxes. */ | |
28be1ada | 668 | else if (EQ (AREF (menu_items, i), Qquote)) |
279a1d4b | 669 | i += 1; |
28be1ada | 670 | else if (EQ (AREF (menu_items, i), Qt)) |
279a1d4b CY |
671 | { |
672 | /* Create a new pane. */ | |
b01a1c29 | 673 | Lisp_Object pane_name; |
675e2c69 | 674 | const char *pane_string; |
279a1d4b | 675 | |
7cded46f | 676 | panes_seen = 1; |
279a1d4b | 677 | |
28be1ada | 678 | pane_name = AREF (menu_items, i + MENU_ITEMS_PANE_NAME); |
279a1d4b | 679 | |
06284c32 EZ |
680 | /* TTY menus display menu items via tty_write_glyphs, which |
681 | will encode the strings as appropriate. */ | |
682 | if (!FRAME_TERMCAP_P (f)) | |
279a1d4b | 683 | { |
06284c32 EZ |
684 | #ifdef HAVE_NTGUI |
685 | if (STRINGP (pane_name)) | |
686 | { | |
687 | if (unicode_append_menu) | |
688 | /* Encode as UTF-8 for now. */ | |
689 | pane_name = ENCODE_UTF_8 (pane_name); | |
690 | else if (STRING_MULTIBYTE (pane_name)) | |
691 | pane_name = ENCODE_SYSTEM (pane_name); | |
279a1d4b | 692 | |
06284c32 EZ |
693 | ASET (menu_items, i + MENU_ITEMS_PANE_NAME, pane_name); |
694 | } | |
99852628 | 695 | #elif defined (USE_LUCID) && defined (HAVE_XFT) |
06284c32 EZ |
696 | if (STRINGP (pane_name)) |
697 | { | |
698 | pane_name = ENCODE_UTF_8 (pane_name); | |
699 | ASET (menu_items, i + MENU_ITEMS_PANE_NAME, pane_name); | |
700 | } | |
279a1d4b | 701 | #elif !defined (HAVE_MULTILINGUAL_MENU) |
06284c32 EZ |
702 | if (STRINGP (pane_name) && STRING_MULTIBYTE (pane_name)) |
703 | { | |
704 | pane_name = ENCODE_MENU_STRING (pane_name); | |
705 | ASET (menu_items, i + MENU_ITEMS_PANE_NAME, pane_name); | |
706 | } | |
279a1d4b | 707 | #endif |
06284c32 | 708 | } |
279a1d4b CY |
709 | |
710 | pane_string = (NILP (pane_name) | |
51b59d79 | 711 | ? "" : SSDATA (pane_name)); |
279a1d4b CY |
712 | /* If there is just one top-level pane, put all its items directly |
713 | under the top-level menu. */ | |
714 | if (menu_items_n_panes == 1) | |
715 | pane_string = ""; | |
716 | ||
717 | /* If the pane has a meaningful name, | |
718 | make the pane a top-level menu item | |
719 | with its items as a submenu beneath it. */ | |
720 | if (strcmp (pane_string, "")) | |
721 | { | |
5668fb88 DA |
722 | /* Set value to 1 so update_submenu_strings can handle '@'. */ |
723 | wv = make_widget_value (NULL, (char *) 1, true, Qnil); | |
279a1d4b CY |
724 | if (save_wv) |
725 | save_wv->next = wv; | |
726 | else | |
727 | first_wv->contents = wv; | |
728 | wv->lname = pane_name; | |
279a1d4b | 729 | wv->button_type = BUTTON_TYPE_NONE; |
279a1d4b CY |
730 | save_wv = wv; |
731 | } | |
732 | else | |
733 | save_wv = first_wv; | |
734 | ||
735 | prev_wv = 0; | |
736 | i += MENU_ITEMS_PANE_LENGTH; | |
737 | } | |
738 | else | |
739 | { | |
740 | /* Create a new item within current pane. */ | |
741 | Lisp_Object item_name, enable, descrip, def, type, selected; | |
742 | Lisp_Object help; | |
743 | ||
744 | /* All items should be contained in panes. */ | |
7cded46f | 745 | if (! panes_seen) |
1088b922 | 746 | emacs_abort (); |
279a1d4b CY |
747 | |
748 | item_name = AREF (menu_items, i + MENU_ITEMS_ITEM_NAME); | |
749 | enable = AREF (menu_items, i + MENU_ITEMS_ITEM_ENABLE); | |
750 | descrip = AREF (menu_items, i + MENU_ITEMS_ITEM_EQUIV_KEY); | |
751 | def = AREF (menu_items, i + MENU_ITEMS_ITEM_DEFINITION); | |
752 | type = AREF (menu_items, i + MENU_ITEMS_ITEM_TYPE); | |
753 | selected = AREF (menu_items, i + MENU_ITEMS_ITEM_SELECTED); | |
754 | help = AREF (menu_items, i + MENU_ITEMS_ITEM_HELP); | |
755 | ||
06284c32 EZ |
756 | /* TTY menu items and their descriptions will be encoded by |
757 | tty_write_glyphs. */ | |
758 | if (!FRAME_TERMCAP_P (f)) | |
279a1d4b | 759 | { |
06284c32 EZ |
760 | #ifdef HAVE_NTGUI |
761 | if (STRINGP (item_name)) | |
762 | { | |
763 | if (unicode_append_menu) | |
764 | item_name = ENCODE_UTF_8 (item_name); | |
765 | else if (STRING_MULTIBYTE (item_name)) | |
766 | item_name = ENCODE_SYSTEM (item_name); | |
279a1d4b | 767 | |
06284c32 EZ |
768 | ASET (menu_items, i + MENU_ITEMS_ITEM_NAME, item_name); |
769 | } | |
279a1d4b | 770 | |
06284c32 EZ |
771 | if (STRINGP (descrip) && STRING_MULTIBYTE (descrip)) |
772 | { | |
773 | descrip = ENCODE_SYSTEM (descrip); | |
774 | ASET (menu_items, i + MENU_ITEMS_ITEM_EQUIV_KEY, descrip); | |
775 | } | |
99852628 | 776 | #elif USE_LUCID |
06284c32 EZ |
777 | if (STRINGP (item_name)) |
778 | { | |
779 | item_name = ENCODE_UTF_8 (item_name); | |
780 | ASET (menu_items, i + MENU_ITEMS_ITEM_NAME, item_name); | |
781 | } | |
99852628 | 782 | |
06284c32 EZ |
783 | if (STRINGP (descrip)) |
784 | { | |
785 | descrip = ENCODE_UTF_8 (descrip); | |
786 | ASET (menu_items, i + MENU_ITEMS_ITEM_EQUIV_KEY, descrip); | |
787 | } | |
279a1d4b | 788 | #elif !defined (HAVE_MULTILINGUAL_MENU) |
06284c32 EZ |
789 | if (STRING_MULTIBYTE (item_name)) |
790 | { | |
791 | item_name = ENCODE_MENU_STRING (item_name); | |
792 | ASET (menu_items, i + MENU_ITEMS_ITEM_NAME, item_name); | |
793 | } | |
279a1d4b | 794 | |
06284c32 EZ |
795 | if (STRINGP (descrip) && STRING_MULTIBYTE (descrip)) |
796 | { | |
797 | descrip = ENCODE_MENU_STRING (descrip); | |
798 | ASET (menu_items, i + MENU_ITEMS_ITEM_EQUIV_KEY, descrip); | |
799 | } | |
279a1d4b | 800 | #endif |
06284c32 | 801 | } |
279a1d4b | 802 | |
5668fb88 DA |
803 | wv = make_widget_value (NULL, NULL, !NILP (enable), |
804 | STRINGP (help) ? help : Qnil); | |
279a1d4b CY |
805 | if (prev_wv) |
806 | prev_wv->next = wv; | |
807 | else | |
808 | save_wv->contents = wv; | |
809 | ||
810 | wv->lname = item_name; | |
811 | if (!NILP (descrip)) | |
812 | wv->lkey = descrip; | |
d01a7826 | 813 | /* The intptr_t cast avoids a warning. There's no problem |
279a1d4b | 814 | as long as pointers have enough bits to hold small integers. */ |
d01a7826 | 815 | wv->call_data = (!NILP (def) ? (void *) (intptr_t) i : 0); |
279a1d4b CY |
816 | |
817 | if (NILP (type)) | |
818 | wv->button_type = BUTTON_TYPE_NONE; | |
819 | else if (EQ (type, QCradio)) | |
820 | wv->button_type = BUTTON_TYPE_RADIO; | |
821 | else if (EQ (type, QCtoggle)) | |
822 | wv->button_type = BUTTON_TYPE_TOGGLE; | |
823 | else | |
1088b922 | 824 | emacs_abort (); |
279a1d4b CY |
825 | |
826 | wv->selected = !NILP (selected); | |
279a1d4b CY |
827 | |
828 | prev_wv = wv; | |
829 | ||
830 | i += MENU_ITEMS_ITEM_LENGTH; | |
831 | } | |
832 | } | |
833 | ||
834 | /* If we have just one "menu item" | |
835 | that was originally a button, return it by itself. */ | |
836 | if (top_level_items && first_wv->contents && first_wv->contents->next == 0) | |
837 | { | |
838 | wv = first_wv->contents; | |
5668fb88 | 839 | xfree (first_wv); |
279a1d4b CY |
840 | return wv; |
841 | } | |
842 | ||
843 | return first_wv; | |
844 | } | |
845 | ||
846 | /* Walk through the widget_value tree starting at FIRST_WV and update | |
847 | the char * pointers from the corresponding lisp values. | |
848 | We do this after building the whole tree, since GC may happen while the | |
849 | tree is constructed, and small strings are relocated. So we must wait | |
850 | until no GC can happen before storing pointers into lisp values. */ | |
851 | void | |
971de7fb | 852 | update_submenu_strings (widget_value *first_wv) |
279a1d4b CY |
853 | { |
854 | widget_value *wv; | |
855 | ||
856 | for (wv = first_wv; wv; wv = wv->next) | |
857 | { | |
858 | if (STRINGP (wv->lname)) | |
859 | { | |
51b59d79 | 860 | wv->name = SSDATA (wv->lname); |
279a1d4b CY |
861 | |
862 | /* Ignore the @ that means "separate pane". | |
863 | This is a kludge, but this isn't worth more time. */ | |
864 | if (wv->value == (char *)1) | |
865 | { | |
866 | if (wv->name[0] == '@') | |
867 | wv->name++; | |
868 | wv->value = 0; | |
869 | } | |
870 | } | |
871 | ||
872 | if (STRINGP (wv->lkey)) | |
51b59d79 | 873 | wv->key = SSDATA (wv->lkey); |
279a1d4b CY |
874 | |
875 | if (wv->contents) | |
876 | update_submenu_strings (wv->contents); | |
877 | } | |
878 | } | |
879 | ||
880 | /* Find the menu selection and store it in the keyboard buffer. | |
881 | F is the frame the menu is on. | |
882 | MENU_BAR_ITEMS_USED is the length of VECTOR. | |
883 | VECTOR is an array of menu events for the whole menu. */ | |
884 | ||
885 | void | |
a10c8269 DA |
886 | find_and_call_menu_selection (struct frame *f, int menu_bar_items_used, |
887 | Lisp_Object vector, void *client_data) | |
279a1d4b CY |
888 | { |
889 | Lisp_Object prefix, entry; | |
890 | Lisp_Object *subprefix_stack; | |
891 | int submenu_depth = 0; | |
892 | int i; | |
893 | ||
894 | entry = Qnil; | |
38182d90 | 895 | subprefix_stack = alloca (menu_bar_items_used * sizeof *subprefix_stack); |
279a1d4b CY |
896 | prefix = Qnil; |
897 | i = 0; | |
898 | ||
899 | while (i < menu_bar_items_used) | |
900 | { | |
28be1ada | 901 | if (EQ (AREF (vector, i), Qnil)) |
279a1d4b CY |
902 | { |
903 | subprefix_stack[submenu_depth++] = prefix; | |
904 | prefix = entry; | |
905 | i++; | |
906 | } | |
28be1ada | 907 | else if (EQ (AREF (vector, i), Qlambda)) |
279a1d4b CY |
908 | { |
909 | prefix = subprefix_stack[--submenu_depth]; | |
910 | i++; | |
911 | } | |
28be1ada | 912 | else if (EQ (AREF (vector, i), Qt)) |
279a1d4b | 913 | { |
28be1ada | 914 | prefix = AREF (vector, i + MENU_ITEMS_PANE_PREFIX); |
279a1d4b CY |
915 | i += MENU_ITEMS_PANE_LENGTH; |
916 | } | |
917 | else | |
918 | { | |
28be1ada | 919 | entry = AREF (vector, i + MENU_ITEMS_ITEM_VALUE); |
8ac068ac | 920 | /* Treat the pointer as an integer. There's no problem |
279a1d4b | 921 | as long as pointers have enough bits to hold small integers. */ |
d01a7826 | 922 | if ((intptr_t) client_data == i) |
279a1d4b CY |
923 | { |
924 | int j; | |
925 | struct input_event buf; | |
926 | Lisp_Object frame; | |
927 | EVENT_INIT (buf); | |
928 | ||
929 | XSETFRAME (frame, f); | |
930 | buf.kind = MENU_BAR_EVENT; | |
931 | buf.frame_or_window = frame; | |
932 | buf.arg = frame; | |
933 | kbd_buffer_store_event (&buf); | |
934 | ||
935 | for (j = 0; j < submenu_depth; j++) | |
936 | if (!NILP (subprefix_stack[j])) | |
937 | { | |
938 | buf.kind = MENU_BAR_EVENT; | |
939 | buf.frame_or_window = frame; | |
940 | buf.arg = subprefix_stack[j]; | |
941 | kbd_buffer_store_event (&buf); | |
942 | } | |
943 | ||
944 | if (!NILP (prefix)) | |
945 | { | |
946 | buf.kind = MENU_BAR_EVENT; | |
947 | buf.frame_or_window = frame; | |
948 | buf.arg = prefix; | |
949 | kbd_buffer_store_event (&buf); | |
950 | } | |
951 | ||
952 | buf.kind = MENU_BAR_EVENT; | |
953 | buf.frame_or_window = frame; | |
954 | buf.arg = entry; | |
955 | kbd_buffer_store_event (&buf); | |
956 | ||
957 | return; | |
958 | } | |
959 | i += MENU_ITEMS_ITEM_LENGTH; | |
960 | } | |
961 | } | |
962 | } | |
963 | ||
edfda783 AR |
964 | #endif /* USE_X_TOOLKIT || USE_GTK || HAVE_NS || HAVE_NTGUI */ |
965 | ||
966 | #ifdef HAVE_NS | |
967 | /* As above, but return the menu selection instead of storing in kb buffer. | |
7cded46f | 968 | If KEYMAPS, return full prefixes to selection. */ |
edfda783 | 969 | Lisp_Object |
a10c8269 | 970 | find_and_return_menu_selection (struct frame *f, bool keymaps, void *client_data) |
edfda783 AR |
971 | { |
972 | Lisp_Object prefix, entry; | |
973 | int i; | |
974 | Lisp_Object *subprefix_stack; | |
975 | int submenu_depth = 0; | |
976 | ||
977 | prefix = entry = Qnil; | |
978 | i = 0; | |
663e2b3f | 979 | subprefix_stack = alloca (menu_items_used * word_size); |
edfda783 AR |
980 | |
981 | while (i < menu_items_used) | |
982 | { | |
28be1ada | 983 | if (EQ (AREF (menu_items, i), Qnil)) |
edfda783 AR |
984 | { |
985 | subprefix_stack[submenu_depth++] = prefix; | |
986 | prefix = entry; | |
987 | i++; | |
988 | } | |
28be1ada | 989 | else if (EQ (AREF (menu_items, i), Qlambda)) |
edfda783 AR |
990 | { |
991 | prefix = subprefix_stack[--submenu_depth]; | |
992 | i++; | |
993 | } | |
28be1ada | 994 | else if (EQ (AREF (menu_items, i), Qt)) |
edfda783 AR |
995 | { |
996 | prefix | |
28be1ada | 997 | = AREF (menu_items, i + MENU_ITEMS_PANE_PREFIX); |
edfda783 AR |
998 | i += MENU_ITEMS_PANE_LENGTH; |
999 | } | |
1000 | /* Ignore a nil in the item list. | |
1001 | It's meaningful only for dialog boxes. */ | |
28be1ada | 1002 | else if (EQ (AREF (menu_items, i), Qquote)) |
edfda783 AR |
1003 | i += 1; |
1004 | else | |
1005 | { | |
1006 | entry | |
28be1ada | 1007 | = AREF (menu_items, i + MENU_ITEMS_ITEM_VALUE); |
4939150c | 1008 | if (aref_addr (menu_items, i) == client_data) |
edfda783 | 1009 | { |
7cded46f | 1010 | if (keymaps) |
edfda783 AR |
1011 | { |
1012 | int j; | |
1013 | ||
6c6f1994 | 1014 | entry = list1 (entry); |
edfda783 AR |
1015 | if (!NILP (prefix)) |
1016 | entry = Fcons (prefix, entry); | |
1017 | for (j = submenu_depth - 1; j >= 0; j--) | |
1018 | if (!NILP (subprefix_stack[j])) | |
1019 | entry = Fcons (subprefix_stack[j], entry); | |
1020 | } | |
1021 | return entry; | |
1022 | } | |
1023 | i += MENU_ITEMS_ITEM_LENGTH; | |
1024 | } | |
1025 | } | |
facfbbbd | 1026 | return Qnil; |
edfda783 | 1027 | } |
31c2d412 | 1028 | #endif /* HAVE_NS */ |
279a1d4b | 1029 | |
3b158d11 PE |
1030 | ptrdiff_t |
1031 | menu_item_width (const unsigned char *str) | |
401cf890 | 1032 | { |
3b158d11 PE |
1033 | ptrdiff_t len; |
1034 | const unsigned char *p; | |
401cf890 EZ |
1035 | |
1036 | for (len = 0, p = str; *p; ) | |
1037 | { | |
1038 | int ch_len; | |
1039 | int ch = STRING_CHAR_AND_LENGTH (p, ch_len); | |
1040 | ||
1041 | len += CHAR_WIDTH (ch); | |
1042 | p += ch_len; | |
1043 | } | |
1044 | return len; | |
1045 | } | |
1046 | ||
63dfbda7 EZ |
1047 | DEFUN ("menu-bar-menu-at-x-y", Fmenu_bar_menu_at_x_y, Smenu_bar_menu_at_x_y, |
1048 | 2, 3, 0, | |
1049 | doc: /* Return the menu-bar menu on FRAME at pixel coordinates X, Y. | |
1050 | X and Y are frame-relative pixel coordinates, assumed to define | |
1051 | a location within the menu bar. | |
1052 | If FRAME is nil or omitted, it defaults to the selected frame. | |
1053 | ||
1054 | Value is the symbol of the menu at X/Y, or nil if the specified | |
1055 | coordinates are not within the FRAME's menu bar. The symbol can | |
1056 | be used to look up the menu like this: | |
1057 | ||
493a1978 EZ |
1058 | (lookup-key MAP [menu-bar SYMBOL]) |
1059 | ||
1060 | where MAP is either the current global map or the current local map, | |
1061 | since menu-bar items come from both. | |
63dfbda7 EZ |
1062 | |
1063 | This function can return non-nil only on a text-terminal frame | |
1064 | or on an X frame that doesn't use any GUI toolkit. Otherwise, | |
1065 | Emacs does not manage the menu bar and cannot convert coordinates | |
1066 | into menu items. */) | |
1067 | (Lisp_Object x, Lisp_Object y, Lisp_Object frame) | |
1068 | { | |
1069 | int row, col; | |
1070 | struct frame *f = decode_any_frame (frame); | |
1071 | ||
1072 | if (!FRAME_LIVE_P (f)) | |
1073 | return Qnil; | |
1074 | ||
1075 | pixel_to_glyph_coords (f, XINT (x), XINT (y), &col, &row, NULL, 1); | |
1076 | if (0 <= row && row < FRAME_MENU_BAR_LINES (f)) | |
1077 | { | |
1078 | Lisp_Object items, item; | |
1079 | int i; | |
1080 | ||
1081 | /* Find the menu bar item under `col'. */ | |
1082 | item = Qnil; | |
1083 | items = FRAME_MENU_BAR_ITEMS (f); | |
f9e5cb0a EZ |
1084 | /* This loop assumes a single menu-bar line, and will fail to |
1085 | find an item if it is not in the first line. Note that | |
1086 | make_lispy_event in keyboard.c makes the same assumption. */ | |
63dfbda7 EZ |
1087 | for (i = 0; i < ASIZE (items); i += 4) |
1088 | { | |
1089 | Lisp_Object pos, str; | |
1090 | ||
1091 | str = AREF (items, i + 1); | |
1092 | pos = AREF (items, i + 3); | |
1093 | if (NILP (str)) | |
1094 | return item; | |
401cf890 EZ |
1095 | if (XINT (pos) <= col |
1096 | /* We use <= so the blank between 2 items on a TTY is | |
1097 | considered part of the previous item. */ | |
3b158d11 | 1098 | && col <= XINT (pos) + menu_item_width (SDATA (str))) |
63dfbda7 EZ |
1099 | { |
1100 | item = AREF (items, i); | |
1101 | return item; | |
1102 | } | |
1103 | } | |
1104 | } | |
1105 | return Qnil; | |
1106 | } | |
1107 | ||
1108 | ||
a7ca3326 | 1109 | DEFUN ("x-popup-menu", Fx_popup_menu, Sx_popup_menu, 2, 2, 0, |
ef7417fd SM |
1110 | doc: /* Pop up a deck-of-cards menu and return user's selection. |
1111 | POSITION is a position specification. This is either a mouse button event | |
1112 | or a list ((XOFFSET YOFFSET) WINDOW) | |
1113 | where XOFFSET and YOFFSET are positions in pixels from the top left | |
1114 | corner of WINDOW. (WINDOW may be a window or a frame object.) | |
1115 | This controls the position of the top left of the menu as a whole. | |
1116 | If POSITION is t, it means to use the current mouse position. | |
1117 | ||
1118 | MENU is a specifier for a menu. For the simplest case, MENU is a keymap. | |
1119 | The menu items come from key bindings that have a menu string as well as | |
1120 | a definition; actually, the "definition" in such a key binding looks like | |
1121 | \(STRING . REAL-DEFINITION). To give the menu a title, put a string into | |
1122 | the keymap as a top-level element. | |
1123 | ||
1124 | If REAL-DEFINITION is nil, that puts a nonselectable string in the menu. | |
1125 | Otherwise, REAL-DEFINITION should be a valid key binding definition. | |
1126 | ||
1127 | You can also use a list of keymaps as MENU. | |
1128 | Then each keymap makes a separate pane. | |
1129 | ||
1130 | When MENU is a keymap or a list of keymaps, the return value is the | |
1131 | list of events corresponding to the user's choice. Note that | |
1132 | `x-popup-menu' does not actually execute the command bound to that | |
1133 | sequence of events. | |
1134 | ||
1135 | Alternatively, you can specify a menu of multiple panes | |
1136 | with a list of the form (TITLE PANE1 PANE2...), | |
1137 | where each pane is a list of form (TITLE ITEM1 ITEM2...). | |
1138 | Each ITEM is normally a cons cell (STRING . VALUE); | |
1139 | but a string can appear as an item--that makes a nonselectable line | |
1140 | in the menu. | |
1141 | With this form of menu, the return value is VALUE from the chosen item. | |
1142 | ||
1143 | If POSITION is nil, don't display the menu at all, just precalculate the | |
1144 | cached information about equivalent key sequences. | |
1145 | ||
1146 | If the user gets rid of the menu without making a valid choice, for | |
1147 | instance by clicking the mouse away from a valid choice or by typing | |
1148 | keyboard input, then this normally results in a quit and | |
1149 | `x-popup-menu' does not return. But if POSITION is a mouse button | |
1150 | event (indicating that the user invoked the menu with the mouse) then | |
1151 | no quit occurs and `x-popup-menu' returns nil. */) | |
5842a27b | 1152 | (Lisp_Object position, Lisp_Object menu) |
ef7417fd | 1153 | { |
4a48e94d | 1154 | Lisp_Object keymap, tem, tem2; |
ef7417fd SM |
1155 | int xpos = 0, ypos = 0; |
1156 | Lisp_Object title; | |
42ca4633 | 1157 | const char *error_name = NULL; |
ef7417fd | 1158 | Lisp_Object selection = Qnil; |
a10c8269 | 1159 | struct frame *f = NULL; |
ef7417fd | 1160 | Lisp_Object x, y, window; |
cfd794af | 1161 | int menuflags = 0; |
d311d28c | 1162 | ptrdiff_t specpdl_count = SPECPDL_INDEX (); |
ef7417fd | 1163 | struct gcpro gcpro1; |
ef7417fd | 1164 | |
ef7417fd SM |
1165 | if (NILP (position)) |
1166 | /* This is an obsolete call, which wants us to precompute the | |
1167 | keybinding equivalents, but we don't do that any more anyway. */ | |
1168 | return Qnil; | |
1169 | ||
ef7417fd | 1170 | { |
7cded46f | 1171 | bool get_current_pos_p = 0; |
73931ad1 | 1172 | |
ef7417fd SM |
1173 | /* Decode the first argument: find the window and the coordinates. */ |
1174 | if (EQ (position, Qt) | |
1175 | || (CONSP (position) && (EQ (XCAR (position), Qmenu_bar) | |
1176 | || EQ (XCAR (position), Qtool_bar)))) | |
1177 | { | |
1178 | get_current_pos_p = 1; | |
1179 | } | |
1180 | else | |
1181 | { | |
1182 | tem = Fcar (position); | |
1183 | if (CONSP (tem)) | |
1184 | { | |
1185 | window = Fcar (Fcdr (position)); | |
1186 | x = XCAR (tem); | |
1187 | y = Fcar (XCDR (tem)); | |
1188 | } | |
1189 | else | |
1190 | { | |
cfd794af | 1191 | menuflags |= MENU_FOR_CLICK; |
ef7417fd SM |
1192 | tem = Fcar (Fcdr (position)); /* EVENT_START (position) */ |
1193 | window = Fcar (tem); /* POSN_WINDOW (tem) */ | |
4a48e94d | 1194 | tem2 = Fcar (Fcdr (tem)); /* POSN_POSN (tem) */ |
cfd794af DA |
1195 | /* The MENU_KBD_NAVIGATION field is set when the menu |
1196 | was invoked by F10, which probably means they have no | |
4a48e94d EZ |
1197 | mouse. In that case, we let them switch between |
1198 | top-level menu-bar menus by using C-f/C-b and | |
1199 | horizontal arrow keys, since they cannot click the | |
1200 | mouse to open a different submenu. This flag is only | |
1201 | supported by tty_menu_show. We set it when POSITION | |
1202 | and last_nonmenu_event are different, which means we | |
1203 | constructed POSITION by hand (in popup-menu, see | |
1204 | menu-bar.el) to look like a mouse click on the menu bar | |
1205 | event. */ | |
1206 | if (!EQ (POSN_POSN (last_nonmenu_event), | |
1207 | POSN_POSN (position)) | |
1208 | && CONSP (tem2) && EQ (Fcar (tem2), Qmenu_bar)) | |
cfd794af | 1209 | menuflags |= MENU_KBD_NAVIGATION; |
a6d676d9 CY |
1210 | tem = Fcar (Fcdr (Fcdr (tem))); /* POSN_WINDOW_POSN (tem) */ |
1211 | x = Fcar (tem); | |
1212 | y = Fcdr (tem); | |
ef7417fd SM |
1213 | } |
1214 | ||
1215 | /* If a click happens in an external tool bar or a detached | |
1216 | tool bar, x and y is NIL. In that case, use the current | |
1217 | mouse position. This happens for the help button in the | |
1218 | tool bar. Ideally popup-menu should pass NIL to | |
1219 | this function, but it doesn't. */ | |
1220 | if (NILP (x) && NILP (y)) | |
1221 | get_current_pos_p = 1; | |
1222 | } | |
1223 | ||
1224 | if (get_current_pos_p) | |
1225 | { | |
1226 | /* Use the mouse's current position. */ | |
a10c8269 | 1227 | struct frame *new_f = SELECTED_FRAME (); |
ef7417fd SM |
1228 | #ifdef HAVE_X_WINDOWS |
1229 | /* Can't use mouse_position_hook for X since it returns | |
1230 | coordinates relative to the window the mouse is in, | |
1231 | we need coordinates relative to the edit widget always. */ | |
1232 | if (new_f != 0) | |
1233 | { | |
1234 | int cur_x, cur_y; | |
1235 | ||
1236 | mouse_position_for_popup (new_f, &cur_x, &cur_y); | |
1237 | /* cur_x/y may be negative, so use make_number. */ | |
1238 | x = make_number (cur_x); | |
1239 | y = make_number (cur_y); | |
1240 | } | |
1241 | ||
1242 | #else /* not HAVE_X_WINDOWS */ | |
1243 | Lisp_Object bar_window; | |
1244 | enum scroll_bar_part part; | |
08dc5ae6 | 1245 | Time time; |
f57e2426 J |
1246 | void (*mouse_position_hook) (struct frame **, int, |
1247 | Lisp_Object *, | |
1248 | enum scroll_bar_part *, | |
1249 | Lisp_Object *, | |
1250 | Lisp_Object *, | |
08dc5ae6 | 1251 | Time *) = |
ef7417fd SM |
1252 | FRAME_TERMINAL (new_f)->mouse_position_hook; |
1253 | ||
1254 | if (mouse_position_hook) | |
1255 | (*mouse_position_hook) (&new_f, 1, &bar_window, | |
1256 | &part, &x, &y, &time); | |
1257 | #endif /* not HAVE_X_WINDOWS */ | |
1258 | ||
1259 | if (new_f != 0) | |
1260 | XSETFRAME (window, new_f); | |
1261 | else | |
1262 | { | |
1263 | window = selected_window; | |
1264 | XSETFASTINT (x, 0); | |
1265 | XSETFASTINT (y, 0); | |
1266 | } | |
1267 | } | |
1268 | ||
ef7417fd SM |
1269 | /* Decode where to put the menu. */ |
1270 | ||
1271 | if (FRAMEP (window)) | |
1272 | { | |
1273 | f = XFRAME (window); | |
1274 | xpos = 0; | |
1275 | ypos = 0; | |
1276 | } | |
1277 | else if (WINDOWP (window)) | |
1278 | { | |
1279 | struct window *win = XWINDOW (window); | |
1280 | CHECK_LIVE_WINDOW (window); | |
1281 | f = XFRAME (WINDOW_FRAME (win)); | |
1282 | ||
ef7417fd SM |
1283 | xpos = WINDOW_LEFT_EDGE_X (win); |
1284 | ypos = WINDOW_TOP_EDGE_Y (win); | |
ef7417fd SM |
1285 | } |
1286 | else | |
1287 | /* ??? Not really clean; should be CHECK_WINDOW_OR_FRAME, | |
1288 | but I don't want to make one now. */ | |
1289 | CHECK_WINDOW (window); | |
1290 | ||
af5a5a98 AS |
1291 | CHECK_RANGED_INTEGER (x, |
1292 | (xpos < INT_MIN - MOST_NEGATIVE_FIXNUM | |
d311d28c PE |
1293 | ? (EMACS_INT) INT_MIN - xpos |
1294 | : MOST_NEGATIVE_FIXNUM), | |
af5a5a98 AS |
1295 | INT_MAX - xpos); |
1296 | CHECK_RANGED_INTEGER (y, | |
1297 | (ypos < INT_MIN - MOST_NEGATIVE_FIXNUM | |
d311d28c PE |
1298 | ? (EMACS_INT) INT_MIN - ypos |
1299 | : MOST_NEGATIVE_FIXNUM), | |
af5a5a98 | 1300 | INT_MAX - ypos); |
ef7417fd SM |
1301 | xpos += XINT (x); |
1302 | ypos += XINT (y); | |
1303 | ||
ef7417fd SM |
1304 | XSETFRAME (Vmenu_updating_frame, f); |
1305 | } | |
ef7417fd SM |
1306 | |
1307 | /* Now parse the lisp menus. */ | |
27e498e6 | 1308 | record_unwind_protect_void (unuse_menu_items); |
ef7417fd SM |
1309 | |
1310 | title = Qnil; | |
1311 | GCPRO1 (title); | |
1312 | ||
1313 | /* Decode the menu items from what was specified. */ | |
1314 | ||
1315 | keymap = get_keymap (menu, 0, 0); | |
1316 | if (CONSP (keymap)) | |
1317 | { | |
1318 | /* We were given a keymap. Extract menu info from the keymap. */ | |
1319 | Lisp_Object prompt; | |
1320 | ||
1321 | /* Extract the detailed info to make one pane. */ | |
1322 | keymap_panes (&menu, 1); | |
1323 | ||
1324 | /* Search for a string appearing directly as an element of the keymap. | |
1325 | That string is the title of the menu. */ | |
1326 | prompt = Fkeymap_prompt (keymap); | |
1327 | if (!NILP (prompt)) | |
1328 | title = prompt; | |
1329 | #ifdef HAVE_NS /* Is that needed and NS-specific? --Stef */ | |
1330 | else | |
1331 | title = build_string ("Select"); | |
1332 | #endif | |
1333 | ||
1334 | /* Make that be the pane title of the first pane. */ | |
1335 | if (!NILP (prompt) && menu_items_n_panes >= 0) | |
1336 | ASET (menu_items, MENU_ITEMS_PANE_NAME, prompt); | |
1337 | ||
cfd794af | 1338 | menuflags |= MENU_KEYMAPS; |
ef7417fd SM |
1339 | } |
1340 | else if (CONSP (menu) && KEYMAPP (XCAR (menu))) | |
1341 | { | |
1342 | /* We were given a list of keymaps. */ | |
d311d28c PE |
1343 | EMACS_INT nmaps = XFASTINT (Flength (menu)); |
1344 | Lisp_Object *maps; | |
1345 | ptrdiff_t i; | |
1346 | USE_SAFE_ALLOCA; | |
ef7417fd | 1347 | |
d311d28c | 1348 | SAFE_ALLOCA_LISP (maps, nmaps); |
ef7417fd SM |
1349 | title = Qnil; |
1350 | ||
1351 | /* The first keymap that has a prompt string | |
1352 | supplies the menu title. */ | |
1353 | for (tem = menu, i = 0; CONSP (tem); tem = XCDR (tem)) | |
1354 | { | |
1355 | Lisp_Object prompt; | |
1356 | ||
1357 | maps[i++] = keymap = get_keymap (XCAR (tem), 1, 0); | |
1358 | ||
1359 | prompt = Fkeymap_prompt (keymap); | |
1360 | if (NILP (title) && !NILP (prompt)) | |
1361 | title = prompt; | |
1362 | } | |
1363 | ||
1364 | /* Extract the detailed info to make one pane. */ | |
1365 | keymap_panes (maps, nmaps); | |
1366 | ||
1367 | /* Make the title be the pane title of the first pane. */ | |
1368 | if (!NILP (title) && menu_items_n_panes >= 0) | |
1369 | ASET (menu_items, MENU_ITEMS_PANE_NAME, title); | |
1370 | ||
cfd794af | 1371 | menuflags |= MENU_KEYMAPS; |
d311d28c PE |
1372 | |
1373 | SAFE_FREE (); | |
ef7417fd SM |
1374 | } |
1375 | else | |
1376 | { | |
1377 | /* We were given an old-fashioned menu. */ | |
1378 | title = Fcar (menu); | |
1379 | CHECK_STRING (title); | |
1380 | ||
1381 | list_of_panes (Fcdr (menu)); | |
1382 | ||
cfd794af | 1383 | menuflags &= ~MENU_KEYMAPS; |
ef7417fd SM |
1384 | } |
1385 | ||
1386 | unbind_to (specpdl_count, Qnil); | |
1387 | ||
dc92c039 | 1388 | #ifdef HAVE_WINDOW_SYSTEM |
ef7417fd | 1389 | /* Hide a previous tip, if any. */ |
ffc3882f EZ |
1390 | if (!FRAME_TERMCAP_P (f)) |
1391 | Fx_hide_tip (); | |
dc92c039 | 1392 | #endif |
ef7417fd SM |
1393 | |
1394 | #ifdef HAVE_NTGUI /* FIXME: Is it really w32-specific? --Stef */ | |
1395 | /* If resources from a previous popup menu still exist, does nothing | |
1396 | until the `menu_free_timer' has freed them (see w32fns.c). This | |
1397 | can occur if you press ESC or click outside a menu without selecting | |
1398 | a menu item. | |
1399 | */ | |
ffc3882f | 1400 | if (current_popup_menu && FRAME_W32_P (f)) |
ef7417fd SM |
1401 | { |
1402 | discard_menu_items (); | |
aad3612f | 1403 | FRAME_DISPLAY_INFO (f)->grabbed = 0; |
ef7417fd SM |
1404 | UNGCPRO; |
1405 | return Qnil; | |
1406 | } | |
1407 | #endif | |
1408 | ||
1409 | #ifdef HAVE_NS /* FIXME: ns-specific, why? --Stef */ | |
27e498e6 | 1410 | record_unwind_protect_void (discard_menu_items); |
ef7417fd SM |
1411 | #endif |
1412 | ||
8e3a5269 EZ |
1413 | /* Display them in a menu, but not if F is the initial frame that |
1414 | doesn't have its hooks set (e.g., in a batch session), because | |
1415 | such a frame cannot display menus. */ | |
1416 | if (!FRAME_INITIAL_P (f)) | |
1417 | selection = FRAME_TERMINAL (f)->menu_show_hook (f, xpos, ypos, menuflags, | |
1418 | title, &error_name); | |
ef7417fd | 1419 | |
ef7417fd SM |
1420 | #ifdef HAVE_NS |
1421 | unbind_to (specpdl_count, Qnil); | |
1422 | #else | |
1423 | discard_menu_items (); | |
1424 | #endif | |
1425 | ||
1426 | #ifdef HAVE_NTGUI /* FIXME: Is it really w32-specific? --Stef */ | |
ffc3882f | 1427 | if (FRAME_W32_P (f)) |
b87c4ff2 | 1428 | FRAME_DISPLAY_INFO (f)->grabbed = 0; |
ef7417fd SM |
1429 | #endif |
1430 | ||
ef7417fd SM |
1431 | UNGCPRO; |
1432 | ||
42eea0d0 | 1433 | if (error_name) error ("%s", error_name); |
ef7417fd SM |
1434 | return selection; |
1435 | } | |
1436 | ||
b1b40136 | 1437 | /* If F's terminal is not capable of displaying a popup dialog, |
680a6ad9 DA |
1438 | emulate it with a menu. */ |
1439 | ||
1440 | static Lisp_Object | |
1441 | emulate_dialog_with_menu (struct frame *f, Lisp_Object contents) | |
1442 | { | |
1443 | Lisp_Object x, y, frame, newpos, prompt = Fcar (contents); | |
1444 | int x_coord, y_coord; | |
1445 | ||
1446 | if (FRAME_WINDOW_P (f)) | |
1447 | { | |
1448 | x_coord = FRAME_PIXEL_WIDTH (f); | |
1449 | y_coord = FRAME_PIXEL_HEIGHT (f); | |
1450 | } | |
1451 | else | |
1452 | { | |
1453 | x_coord = FRAME_COLS (f); | |
1454 | /* Center the title at frame middle. (TTY menus have | |
1455 | their upper-left corner at the given position.) */ | |
1456 | if (STRINGP (prompt)) | |
1457 | x_coord -= SCHARS (prompt); | |
1458 | y_coord = FRAME_LINES (f); | |
1459 | } | |
b1b40136 | 1460 | |
680a6ad9 DA |
1461 | XSETFRAME (frame, f); |
1462 | XSETINT (x, x_coord / 2); | |
1463 | XSETINT (y, y_coord / 2); | |
1464 | newpos = list2 (list2 (x, y), frame); | |
1465 | ||
1466 | return Fx_popup_menu (newpos, list2 (prompt, contents)); | |
1467 | } | |
1468 | ||
0afa0aab EZ |
1469 | DEFUN ("x-popup-dialog", Fx_popup_dialog, Sx_popup_dialog, 2, 3, 0, |
1470 | doc: /* Pop up a dialog box and return user's selection. | |
1471 | POSITION specifies which frame to use. | |
1472 | This is normally a mouse button event or a window or frame. | |
1473 | If POSITION is t, it means to use the frame the mouse is on. | |
1474 | The dialog box appears in the middle of the specified frame. | |
1475 | ||
1476 | CONTENTS specifies the alternatives to display in the dialog box. | |
1477 | It is a list of the form (DIALOG ITEM1 ITEM2...). | |
1478 | Each ITEM is a cons cell (STRING . VALUE). | |
1479 | The return value is VALUE from the chosen item. | |
1480 | ||
1481 | An ITEM may also be just a string--that makes a nonselectable item. | |
1482 | An ITEM may also be nil--that means to put all preceding items | |
1483 | on the left of the dialog box and all following items on the right. | |
1484 | \(By default, approximately half appear on each side.) | |
1485 | ||
1486 | If HEADER is non-nil, the frame title for the box is "Information", | |
1487 | otherwise it is "Question". | |
1488 | ||
1489 | If the user gets rid of the dialog box without making a valid choice, | |
1490 | for instance using the window manager, then this produces a quit and | |
1491 | `x-popup-dialog' does not return. */) | |
1492 | (Lisp_Object position, Lisp_Object contents, Lisp_Object header) | |
1493 | { | |
1494 | struct frame *f = NULL; | |
1495 | Lisp_Object window; | |
1496 | ||
1497 | /* Decode the first argument: find the window or frame to use. */ | |
1498 | if (EQ (position, Qt) | |
1499 | || (CONSP (position) && (EQ (XCAR (position), Qmenu_bar) | |
1500 | || EQ (XCAR (position), Qtool_bar)))) | |
680a6ad9 | 1501 | window = selected_window; |
0afa0aab EZ |
1502 | else if (CONSP (position)) |
1503 | { | |
1504 | Lisp_Object tem = XCAR (position); | |
1505 | if (CONSP (tem)) | |
1506 | window = Fcar (XCDR (position)); | |
1507 | else | |
1508 | { | |
1509 | tem = Fcar (XCDR (position)); /* EVENT_START (position) */ | |
1510 | window = Fcar (tem); /* POSN_WINDOW (tem) */ | |
1511 | } | |
1512 | } | |
1513 | else if (WINDOWP (position) || FRAMEP (position)) | |
1514 | window = position; | |
1515 | else | |
1516 | window = Qnil; | |
1517 | ||
1518 | /* Decode where to put the menu. */ | |
1519 | ||
1520 | if (FRAMEP (window)) | |
1521 | f = XFRAME (window); | |
1522 | else if (WINDOWP (window)) | |
1523 | { | |
1524 | CHECK_LIVE_WINDOW (window); | |
1525 | f = XFRAME (WINDOW_FRAME (XWINDOW (window))); | |
1526 | } | |
1527 | else | |
1528 | /* ??? Not really clean; should be CHECK_WINDOW_OR_FRAME, | |
1529 | but I don't want to make one now. */ | |
1530 | CHECK_WINDOW (window); | |
1531 | ||
1532 | /* Force a redisplay before showing the dialog. If a frame is created | |
1533 | just before showing the dialog, its contents may not have been fully | |
1534 | drawn, as this depends on timing of events from the X server. Redisplay | |
1535 | is not done when a dialog is shown. If redisplay could be done in the | |
1536 | X event loop (i.e. the X event loop does not run in a signal handler) | |
1537 | this would not be needed. | |
1538 | ||
1539 | Do this before creating the widget value that points to Lisp | |
1540 | string contents, because Fredisplay may GC and relocate them. */ | |
1541 | Fredisplay (Qt); | |
8e5917ec | 1542 | |
680a6ad9 DA |
1543 | /* Display the popup dialog by a terminal-specific hook ... */ |
1544 | if (FRAME_TERMINAL (f)->popup_dialog_hook) | |
e139a33c | 1545 | { |
680a6ad9 DA |
1546 | Lisp_Object selection |
1547 | = FRAME_TERMINAL (f)->popup_dialog_hook (f, header, contents); | |
1548 | #ifdef HAVE_NTGUI | |
b1b40136 EZ |
1549 | /* NTGUI supports only simple dialogs with Yes/No choices. For |
1550 | other dialogs, it returns the symbol 'unsupported--w32-dialog', | |
1551 | as a signal for the caller to fall back to the emulation code. */ | |
e139a33c | 1552 | if (!EQ (selection, Qunsupported__w32_dialog)) |
b1b40136 EZ |
1553 | #endif |
1554 | return selection; | |
e139a33c | 1555 | } |
680a6ad9 DA |
1556 | /* ... or emulate it with a menu. */ |
1557 | return emulate_dialog_with_menu (f, contents); | |
0afa0aab EZ |
1558 | } |
1559 | ||
279a1d4b | 1560 | void |
971de7fb | 1561 | syms_of_menu (void) |
279a1d4b CY |
1562 | { |
1563 | staticpro (&menu_items); | |
1564 | menu_items = Qnil; | |
1565 | menu_items_inuse = Qnil; | |
ef7417fd SM |
1566 | |
1567 | defsubr (&Sx_popup_menu); | |
0afa0aab | 1568 | defsubr (&Sx_popup_dialog); |
63dfbda7 | 1569 | defsubr (&Smenu_bar_menu_at_x_y); |
279a1d4b | 1570 | } |