| 1 | /* X Communication module for terminals which understand the X protocol. |
| 2 | Copyright (C) 1986, 1988, 1993, 1994, 1996, 1999, 2000, 2001, 2002, 2003, |
| 3 | 2004, 2005, 2006 Free Software Foundation, Inc. |
| 4 | |
| 5 | This file is part of GNU Emacs. |
| 6 | |
| 7 | GNU Emacs is free software; you can redistribute it and/or modify |
| 8 | it under the terms of the GNU General Public License as published by |
| 9 | the Free Software Foundation; either version 2, or (at your option) |
| 10 | any later version. |
| 11 | |
| 12 | GNU Emacs is distributed in the hope that it will be useful, |
| 13 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 15 | GNU General Public License for more details. |
| 16 | |
| 17 | You should have received a copy of the GNU General Public License |
| 18 | along with GNU Emacs; see the file COPYING. If not, write to |
| 19 | the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, |
| 20 | Boston, MA 02110-1301, USA. */ |
| 21 | |
| 22 | /* X pop-up deck-of-cards menu facility for GNU Emacs. |
| 23 | * |
| 24 | * Written by Jon Arnold and Roman Budzianowski |
| 25 | * Mods and rewrite by Robert Krawitz |
| 26 | * |
| 27 | */ |
| 28 | |
| 29 | /* Modified by Fred Pierresteguy on December 93 |
| 30 | to make the popup menus and menubar use the Xt. */ |
| 31 | |
| 32 | /* Rewritten for clarity and GC protection by rms in Feb 94. */ |
| 33 | |
| 34 | #include <config.h> |
| 35 | |
| 36 | #if 0 /* Why was this included? And without syssignal.h? */ |
| 37 | /* On 4.3 this loses if it comes after xterm.h. */ |
| 38 | #include <signal.h> |
| 39 | #endif |
| 40 | |
| 41 | #include <stdio.h> |
| 42 | |
| 43 | #include "lisp.h" |
| 44 | #include "termhooks.h" |
| 45 | #include "keyboard.h" |
| 46 | #include "keymap.h" |
| 47 | #include "frame.h" |
| 48 | #include "window.h" |
| 49 | #include "blockinput.h" |
| 50 | #include "buffer.h" |
| 51 | #include "charset.h" |
| 52 | #include "coding.h" |
| 53 | #include "sysselect.h" |
| 54 | |
| 55 | #ifdef MSDOS |
| 56 | #include "msdos.h" |
| 57 | #endif |
| 58 | |
| 59 | #ifdef HAVE_X_WINDOWS |
| 60 | /* This may include sys/types.h, and that somehow loses |
| 61 | if this is not done before the other system files. */ |
| 62 | #include "xterm.h" |
| 63 | #endif |
| 64 | |
| 65 | /* Load sys/types.h if not already loaded. |
| 66 | In some systems loading it twice is suicidal. */ |
| 67 | #ifndef makedev |
| 68 | #include <sys/types.h> |
| 69 | #endif |
| 70 | |
| 71 | #include "dispextern.h" |
| 72 | |
| 73 | #ifdef HAVE_X_WINDOWS |
| 74 | /* Defining HAVE_MULTILINGUAL_MENU would mean that the toolkit menu |
| 75 | code accepts the Emacs internal encoding. */ |
| 76 | #undef HAVE_MULTILINGUAL_MENU |
| 77 | #ifdef USE_X_TOOLKIT |
| 78 | #include "widget.h" |
| 79 | #include <X11/Xlib.h> |
| 80 | #include <X11/IntrinsicP.h> |
| 81 | #include <X11/CoreP.h> |
| 82 | #include <X11/StringDefs.h> |
| 83 | #include <X11/Shell.h> |
| 84 | #ifdef USE_LUCID |
| 85 | #include <X11/Xaw/Paned.h> |
| 86 | #endif /* USE_LUCID */ |
| 87 | #include "../lwlib/lwlib.h" |
| 88 | #else /* not USE_X_TOOLKIT */ |
| 89 | #ifndef USE_GTK |
| 90 | #include "../oldXMenu/XMenu.h" |
| 91 | #endif |
| 92 | #endif /* not USE_X_TOOLKIT */ |
| 93 | #endif /* HAVE_X_WINDOWS */ |
| 94 | |
| 95 | #ifndef TRUE |
| 96 | #define TRUE 1 |
| 97 | #define FALSE 0 |
| 98 | #endif /* no TRUE */ |
| 99 | |
| 100 | Lisp_Object Qdebug_on_next_call; |
| 101 | |
| 102 | extern Lisp_Object Vmenu_updating_frame; |
| 103 | |
| 104 | extern Lisp_Object Qmenu_bar; |
| 105 | |
| 106 | extern Lisp_Object QCtoggle, QCradio; |
| 107 | |
| 108 | extern Lisp_Object Voverriding_local_map; |
| 109 | extern Lisp_Object Voverriding_local_map_menu_flag; |
| 110 | |
| 111 | extern Lisp_Object Qoverriding_local_map, Qoverriding_terminal_local_map; |
| 112 | |
| 113 | extern Lisp_Object Qmenu_bar_update_hook; |
| 114 | |
| 115 | #ifdef USE_X_TOOLKIT |
| 116 | extern void set_frame_menubar P_ ((FRAME_PTR, int, int)); |
| 117 | extern XtAppContext Xt_app_con; |
| 118 | |
| 119 | static Lisp_Object xdialog_show P_ ((FRAME_PTR, int, Lisp_Object, Lisp_Object, |
| 120 | char **)); |
| 121 | static void popup_get_selection P_ ((XEvent *, struct x_display_info *, |
| 122 | LWLIB_ID, int)); |
| 123 | |
| 124 | /* Define HAVE_BOXES if menus can handle radio and toggle buttons. */ |
| 125 | |
| 126 | #define HAVE_BOXES 1 |
| 127 | #endif /* USE_X_TOOLKIT */ |
| 128 | |
| 129 | #ifdef USE_GTK |
| 130 | #include "gtkutil.h" |
| 131 | #define HAVE_BOXES 1 |
| 132 | extern void set_frame_menubar P_ ((FRAME_PTR, int, int)); |
| 133 | static Lisp_Object xdialog_show P_ ((FRAME_PTR, int, Lisp_Object, Lisp_Object, |
| 134 | char **)); |
| 135 | #endif |
| 136 | |
| 137 | /* This is how to deal with multibyte text if HAVE_MULTILINGUAL_MENU |
| 138 | isn't defined. The use of HAVE_MULTILINGUAL_MENU could probably be |
| 139 | confined to an extended version of this with sections of code below |
| 140 | using it unconditionally. */ |
| 141 | #ifdef USE_GTK |
| 142 | /* gtk just uses utf-8. */ |
| 143 | # define ENCODE_MENU_STRING(str) ENCODE_UTF_8 (str) |
| 144 | #elif defined HAVE_X_I18N |
| 145 | # define ENCODE_MENU_STRING(str) ENCODE_SYSTEM (str) |
| 146 | #else |
| 147 | # define ENCODE_MENU_STRING(str) string_make_unibyte (str) |
| 148 | #endif |
| 149 | |
| 150 | static void push_menu_item P_ ((Lisp_Object, Lisp_Object, Lisp_Object, |
| 151 | Lisp_Object, Lisp_Object, Lisp_Object, |
| 152 | Lisp_Object, Lisp_Object)); |
| 153 | static int update_frame_menubar P_ ((struct frame *)); |
| 154 | static Lisp_Object xmenu_show P_ ((struct frame *, int, int, int, int, |
| 155 | Lisp_Object, char **)); |
| 156 | static void keymap_panes P_ ((Lisp_Object *, int, int)); |
| 157 | static void single_keymap_panes P_ ((Lisp_Object, Lisp_Object, Lisp_Object, |
| 158 | int, int)); |
| 159 | static void list_of_panes P_ ((Lisp_Object)); |
| 160 | static void list_of_items P_ ((Lisp_Object)); |
| 161 | |
| 162 | \f |
| 163 | /* This holds a Lisp vector that holds the results of decoding |
| 164 | the keymaps or alist-of-alists that specify a menu. |
| 165 | |
| 166 | It describes the panes and items within the panes. |
| 167 | |
| 168 | Each pane is described by 3 elements in the vector: |
| 169 | t, the pane name, the pane's prefix key. |
| 170 | Then follow the pane's items, with 5 elements per item: |
| 171 | the item string, the enable flag, the item's value, |
| 172 | the definition, and the equivalent keyboard key's description string. |
| 173 | |
| 174 | In some cases, multiple levels of menus may be described. |
| 175 | A single vector slot containing nil indicates the start of a submenu. |
| 176 | A single vector slot containing lambda indicates the end of a submenu. |
| 177 | The submenu follows a menu item which is the way to reach the submenu. |
| 178 | |
| 179 | A single vector slot containing quote indicates that the |
| 180 | following items should appear on the right of a dialog box. |
| 181 | |
| 182 | Using a Lisp vector to hold this information while we decode it |
| 183 | takes care of protecting all the data from GC. */ |
| 184 | |
| 185 | #define MENU_ITEMS_PANE_NAME 1 |
| 186 | #define MENU_ITEMS_PANE_PREFIX 2 |
| 187 | #define MENU_ITEMS_PANE_LENGTH 3 |
| 188 | |
| 189 | enum menu_item_idx |
| 190 | { |
| 191 | MENU_ITEMS_ITEM_NAME = 0, |
| 192 | MENU_ITEMS_ITEM_ENABLE, |
| 193 | MENU_ITEMS_ITEM_VALUE, |
| 194 | MENU_ITEMS_ITEM_EQUIV_KEY, |
| 195 | MENU_ITEMS_ITEM_DEFINITION, |
| 196 | MENU_ITEMS_ITEM_TYPE, |
| 197 | MENU_ITEMS_ITEM_SELECTED, |
| 198 | MENU_ITEMS_ITEM_HELP, |
| 199 | MENU_ITEMS_ITEM_LENGTH |
| 200 | }; |
| 201 | |
| 202 | static Lisp_Object menu_items; |
| 203 | |
| 204 | /* If non-nil, means that the global vars defined here are already in use. |
| 205 | Used to detect cases where we try to re-enter this non-reentrant code. */ |
| 206 | static Lisp_Object menu_items_inuse; |
| 207 | |
| 208 | /* Number of slots currently allocated in menu_items. */ |
| 209 | static int menu_items_allocated; |
| 210 | |
| 211 | /* This is the index in menu_items of the first empty slot. */ |
| 212 | static int menu_items_used; |
| 213 | |
| 214 | /* The number of panes currently recorded in menu_items, |
| 215 | excluding those within submenus. */ |
| 216 | static int menu_items_n_panes; |
| 217 | |
| 218 | /* Current depth within submenus. */ |
| 219 | static int menu_items_submenu_depth; |
| 220 | |
| 221 | /* Flag which when set indicates a dialog or menu has been posted by |
| 222 | Xt on behalf of one of the widget sets. */ |
| 223 | static int popup_activated_flag; |
| 224 | |
| 225 | static int next_menubar_widget_id; |
| 226 | |
| 227 | /* This is set nonzero after the user activates the menu bar, and set |
| 228 | to zero again after the menu bars are redisplayed by prepare_menu_bar. |
| 229 | While it is nonzero, all calls to set_frame_menubar go deep. |
| 230 | |
| 231 | I don't understand why this is needed, but it does seem to be |
| 232 | needed on Motif, according to Marcus Daniels <marcus@sysc.pdx.edu>. */ |
| 233 | |
| 234 | int pending_menu_activation; |
| 235 | \f |
| 236 | #ifdef USE_X_TOOLKIT |
| 237 | |
| 238 | /* Return the frame whose ->output_data.x->id equals ID, or 0 if none. */ |
| 239 | |
| 240 | static struct frame * |
| 241 | menubar_id_to_frame (id) |
| 242 | LWLIB_ID id; |
| 243 | { |
| 244 | Lisp_Object tail, frame; |
| 245 | FRAME_PTR f; |
| 246 | |
| 247 | for (tail = Vframe_list; GC_CONSP (tail); tail = XCDR (tail)) |
| 248 | { |
| 249 | frame = XCAR (tail); |
| 250 | if (!GC_FRAMEP (frame)) |
| 251 | continue; |
| 252 | f = XFRAME (frame); |
| 253 | if (!FRAME_WINDOW_P (f)) |
| 254 | continue; |
| 255 | if (f->output_data.x->id == id) |
| 256 | return f; |
| 257 | } |
| 258 | return 0; |
| 259 | } |
| 260 | |
| 261 | #endif |
| 262 | \f |
| 263 | /* Initialize the menu_items structure if we haven't already done so. |
| 264 | Also mark it as currently empty. */ |
| 265 | |
| 266 | static void |
| 267 | init_menu_items () |
| 268 | { |
| 269 | if (!NILP (menu_items_inuse)) |
| 270 | error ("Trying to use a menu from within a menu-entry"); |
| 271 | |
| 272 | if (NILP (menu_items)) |
| 273 | { |
| 274 | menu_items_allocated = 60; |
| 275 | menu_items = Fmake_vector (make_number (menu_items_allocated), Qnil); |
| 276 | } |
| 277 | |
| 278 | menu_items_inuse = Qt; |
| 279 | menu_items_used = 0; |
| 280 | menu_items_n_panes = 0; |
| 281 | menu_items_submenu_depth = 0; |
| 282 | } |
| 283 | |
| 284 | /* Call at the end of generating the data in menu_items. */ |
| 285 | |
| 286 | static void |
| 287 | finish_menu_items () |
| 288 | { |
| 289 | } |
| 290 | |
| 291 | static Lisp_Object |
| 292 | unuse_menu_items (dummy) |
| 293 | Lisp_Object dummy; |
| 294 | { |
| 295 | return menu_items_inuse = Qnil; |
| 296 | } |
| 297 | |
| 298 | /* Call when finished using the data for the current menu |
| 299 | in menu_items. */ |
| 300 | |
| 301 | static void |
| 302 | discard_menu_items () |
| 303 | { |
| 304 | /* Free the structure if it is especially large. |
| 305 | Otherwise, hold on to it, to save time. */ |
| 306 | if (menu_items_allocated > 200) |
| 307 | { |
| 308 | menu_items = Qnil; |
| 309 | menu_items_allocated = 0; |
| 310 | } |
| 311 | xassert (NILP (menu_items_inuse)); |
| 312 | } |
| 313 | |
| 314 | /* This undoes save_menu_items, and it is called by the specpdl unwind |
| 315 | mechanism. */ |
| 316 | |
| 317 | static Lisp_Object |
| 318 | restore_menu_items (saved) |
| 319 | Lisp_Object saved; |
| 320 | { |
| 321 | menu_items = XCAR (saved); |
| 322 | menu_items_inuse = (! NILP (menu_items) ? Qt : Qnil); |
| 323 | menu_items_allocated = (VECTORP (menu_items) ? ASIZE (menu_items) : 0); |
| 324 | saved = XCDR (saved); |
| 325 | menu_items_used = XINT (XCAR (saved)); |
| 326 | saved = XCDR (saved); |
| 327 | menu_items_n_panes = XINT (XCAR (saved)); |
| 328 | saved = XCDR (saved); |
| 329 | menu_items_submenu_depth = XINT (XCAR (saved)); |
| 330 | return Qnil; |
| 331 | } |
| 332 | |
| 333 | /* Push the whole state of menu_items processing onto the specpdl. |
| 334 | It will be restored when the specpdl is unwound. */ |
| 335 | |
| 336 | static void |
| 337 | save_menu_items () |
| 338 | { |
| 339 | Lisp_Object saved = list4 (!NILP (menu_items_inuse) ? menu_items : Qnil, |
| 340 | make_number (menu_items_used), |
| 341 | make_number (menu_items_n_panes), |
| 342 | make_number (menu_items_submenu_depth)); |
| 343 | record_unwind_protect (restore_menu_items, saved); |
| 344 | menu_items_inuse = Qnil; |
| 345 | menu_items = Qnil; |
| 346 | } |
| 347 | \f |
| 348 | /* Make the menu_items vector twice as large. */ |
| 349 | |
| 350 | static void |
| 351 | grow_menu_items () |
| 352 | { |
| 353 | Lisp_Object old; |
| 354 | int old_size = menu_items_allocated; |
| 355 | old = menu_items; |
| 356 | |
| 357 | menu_items_allocated *= 2; |
| 358 | |
| 359 | menu_items = Fmake_vector (make_number (menu_items_allocated), Qnil); |
| 360 | bcopy (XVECTOR (old)->contents, XVECTOR (menu_items)->contents, |
| 361 | old_size * sizeof (Lisp_Object)); |
| 362 | } |
| 363 | |
| 364 | /* Begin a submenu. */ |
| 365 | |
| 366 | static void |
| 367 | push_submenu_start () |
| 368 | { |
| 369 | if (menu_items_used + 1 > menu_items_allocated) |
| 370 | grow_menu_items (); |
| 371 | |
| 372 | XVECTOR (menu_items)->contents[menu_items_used++] = Qnil; |
| 373 | menu_items_submenu_depth++; |
| 374 | } |
| 375 | |
| 376 | /* End a submenu. */ |
| 377 | |
| 378 | static void |
| 379 | push_submenu_end () |
| 380 | { |
| 381 | if (menu_items_used + 1 > menu_items_allocated) |
| 382 | grow_menu_items (); |
| 383 | |
| 384 | XVECTOR (menu_items)->contents[menu_items_used++] = Qlambda; |
| 385 | menu_items_submenu_depth--; |
| 386 | } |
| 387 | |
| 388 | /* Indicate boundary between left and right. */ |
| 389 | |
| 390 | static void |
| 391 | push_left_right_boundary () |
| 392 | { |
| 393 | if (menu_items_used + 1 > menu_items_allocated) |
| 394 | grow_menu_items (); |
| 395 | |
| 396 | XVECTOR (menu_items)->contents[menu_items_used++] = Qquote; |
| 397 | } |
| 398 | |
| 399 | /* Start a new menu pane in menu_items. |
| 400 | NAME is the pane name. PREFIX_VEC is a prefix key for this pane. */ |
| 401 | |
| 402 | static void |
| 403 | push_menu_pane (name, prefix_vec) |
| 404 | Lisp_Object name, prefix_vec; |
| 405 | { |
| 406 | if (menu_items_used + MENU_ITEMS_PANE_LENGTH > menu_items_allocated) |
| 407 | grow_menu_items (); |
| 408 | |
| 409 | if (menu_items_submenu_depth == 0) |
| 410 | menu_items_n_panes++; |
| 411 | XVECTOR (menu_items)->contents[menu_items_used++] = Qt; |
| 412 | XVECTOR (menu_items)->contents[menu_items_used++] = name; |
| 413 | XVECTOR (menu_items)->contents[menu_items_used++] = prefix_vec; |
| 414 | } |
| 415 | |
| 416 | /* Push one menu item into the current pane. NAME is the string to |
| 417 | display. ENABLE if non-nil means this item can be selected. KEY |
| 418 | is the key generated by choosing this item, or nil if this item |
| 419 | doesn't really have a definition. DEF is the definition of this |
| 420 | item. EQUIV is the textual description of the keyboard equivalent |
| 421 | for this item (or nil if none). TYPE is the type of this menu |
| 422 | item, one of nil, `toggle' or `radio'. */ |
| 423 | |
| 424 | static void |
| 425 | push_menu_item (name, enable, key, def, equiv, type, selected, help) |
| 426 | Lisp_Object name, enable, key, def, equiv, type, selected, help; |
| 427 | { |
| 428 | if (menu_items_used + MENU_ITEMS_ITEM_LENGTH > menu_items_allocated) |
| 429 | grow_menu_items (); |
| 430 | |
| 431 | XVECTOR (menu_items)->contents[menu_items_used++] = name; |
| 432 | XVECTOR (menu_items)->contents[menu_items_used++] = enable; |
| 433 | XVECTOR (menu_items)->contents[menu_items_used++] = key; |
| 434 | XVECTOR (menu_items)->contents[menu_items_used++] = equiv; |
| 435 | XVECTOR (menu_items)->contents[menu_items_used++] = def; |
| 436 | XVECTOR (menu_items)->contents[menu_items_used++] = type; |
| 437 | XVECTOR (menu_items)->contents[menu_items_used++] = selected; |
| 438 | XVECTOR (menu_items)->contents[menu_items_used++] = help; |
| 439 | } |
| 440 | \f |
| 441 | /* Look through KEYMAPS, a vector of keymaps that is NMAPS long, |
| 442 | and generate menu panes for them in menu_items. |
| 443 | If NOTREAL is nonzero, |
| 444 | don't bother really computing whether an item is enabled. */ |
| 445 | |
| 446 | static void |
| 447 | keymap_panes (keymaps, nmaps, notreal) |
| 448 | Lisp_Object *keymaps; |
| 449 | int nmaps; |
| 450 | int notreal; |
| 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], |
| 461 | Fkeymap_prompt (keymaps[mapno]), Qnil, notreal, 10); |
| 462 | |
| 463 | finish_menu_items (); |
| 464 | } |
| 465 | |
| 466 | /* Args passed between single_keymap_panes and single_menu_item. */ |
| 467 | struct skp |
| 468 | { |
| 469 | Lisp_Object pending_maps; |
| 470 | int maxdepth, notreal; |
| 471 | int notbuttons; |
| 472 | }; |
| 473 | |
| 474 | static void single_menu_item P_ ((Lisp_Object, Lisp_Object, Lisp_Object, |
| 475 | void *)); |
| 476 | |
| 477 | /* This is a recursive subroutine of keymap_panes. |
| 478 | It handles one keymap, KEYMAP. |
| 479 | The other arguments are passed along |
| 480 | or point to local variables of the previous function. |
| 481 | If NOTREAL is nonzero, only check for equivalent key bindings, don't |
| 482 | evaluate expressions in menu items and don't make any menu. |
| 483 | |
| 484 | If we encounter submenus deeper than MAXDEPTH levels, ignore them. */ |
| 485 | |
| 486 | static void |
| 487 | single_keymap_panes (keymap, pane_name, prefix, notreal, maxdepth) |
| 488 | Lisp_Object keymap; |
| 489 | Lisp_Object pane_name; |
| 490 | Lisp_Object prefix; |
| 491 | int notreal; |
| 492 | int maxdepth; |
| 493 | { |
| 494 | struct skp skp; |
| 495 | struct gcpro gcpro1; |
| 496 | |
| 497 | skp.pending_maps = Qnil; |
| 498 | skp.maxdepth = maxdepth; |
| 499 | skp.notreal = notreal; |
| 500 | skp.notbuttons = 0; |
| 501 | |
| 502 | if (maxdepth <= 0) |
| 503 | return; |
| 504 | |
| 505 | push_menu_pane (pane_name, prefix); |
| 506 | |
| 507 | #ifndef HAVE_BOXES |
| 508 | /* Remember index for first item in this pane so we can go back and |
| 509 | add a prefix when (if) we see the first button. After that, notbuttons |
| 510 | is set to 0, to mark that we have seen a button and all non button |
| 511 | items need a prefix. */ |
| 512 | skp.notbuttons = menu_items_used; |
| 513 | #endif |
| 514 | |
| 515 | GCPRO1 (skp.pending_maps); |
| 516 | map_keymap (keymap, single_menu_item, Qnil, &skp, 1); |
| 517 | UNGCPRO; |
| 518 | |
| 519 | /* Process now any submenus which want to be panes at this level. */ |
| 520 | while (CONSP (skp.pending_maps)) |
| 521 | { |
| 522 | Lisp_Object elt, eltcdr, string; |
| 523 | elt = XCAR (skp.pending_maps); |
| 524 | eltcdr = XCDR (elt); |
| 525 | string = XCAR (eltcdr); |
| 526 | /* We no longer discard the @ from the beginning of the string here. |
| 527 | Instead, we do this in xmenu_show. */ |
| 528 | single_keymap_panes (Fcar (elt), string, |
| 529 | XCDR (eltcdr), notreal, maxdepth - 1); |
| 530 | skp.pending_maps = XCDR (skp.pending_maps); |
| 531 | } |
| 532 | } |
| 533 | \f |
| 534 | /* This is a subroutine of single_keymap_panes that handles one |
| 535 | keymap entry. |
| 536 | KEY is a key in a keymap and ITEM is its binding. |
| 537 | SKP->PENDING_MAPS_PTR is a list of keymaps waiting to be made into |
| 538 | separate panes. |
| 539 | If SKP->NOTREAL is nonzero, only check for equivalent key bindings, don't |
| 540 | evaluate expressions in menu items and don't make any menu. |
| 541 | If we encounter submenus deeper than SKP->MAXDEPTH levels, ignore them. |
| 542 | SKP->NOTBUTTONS is only used when simulating toggle boxes and radio |
| 543 | buttons. It keeps track of if we have seen a button in this menu or |
| 544 | not. */ |
| 545 | |
| 546 | static void |
| 547 | single_menu_item (key, item, dummy, skp_v) |
| 548 | Lisp_Object key, item, dummy; |
| 549 | void *skp_v; |
| 550 | { |
| 551 | Lisp_Object map, item_string, enabled; |
| 552 | struct gcpro gcpro1, gcpro2; |
| 553 | int res; |
| 554 | struct skp *skp = skp_v; |
| 555 | |
| 556 | /* Parse the menu item and leave the result in item_properties. */ |
| 557 | GCPRO2 (key, item); |
| 558 | res = parse_menu_item (item, skp->notreal, 0); |
| 559 | UNGCPRO; |
| 560 | if (!res) |
| 561 | return; /* Not a menu item. */ |
| 562 | |
| 563 | map = XVECTOR (item_properties)->contents[ITEM_PROPERTY_MAP]; |
| 564 | |
| 565 | if (skp->notreal) |
| 566 | { |
| 567 | /* We don't want to make a menu, just traverse the keymaps to |
| 568 | precompute equivalent key bindings. */ |
| 569 | if (!NILP (map)) |
| 570 | single_keymap_panes (map, Qnil, key, 1, skp->maxdepth - 1); |
| 571 | return; |
| 572 | } |
| 573 | |
| 574 | enabled = XVECTOR (item_properties)->contents[ITEM_PROPERTY_ENABLE]; |
| 575 | item_string = XVECTOR (item_properties)->contents[ITEM_PROPERTY_NAME]; |
| 576 | |
| 577 | if (!NILP (map) && SREF (item_string, 0) == '@') |
| 578 | { |
| 579 | if (!NILP (enabled)) |
| 580 | /* An enabled separate pane. Remember this to handle it later. */ |
| 581 | skp->pending_maps = Fcons (Fcons (map, Fcons (item_string, key)), |
| 582 | skp->pending_maps); |
| 583 | return; |
| 584 | } |
| 585 | |
| 586 | #ifndef HAVE_BOXES |
| 587 | /* Simulate radio buttons and toggle boxes by putting a prefix in |
| 588 | front of them. */ |
| 589 | { |
| 590 | Lisp_Object prefix = Qnil; |
| 591 | Lisp_Object type = XVECTOR (item_properties)->contents[ITEM_PROPERTY_TYPE]; |
| 592 | if (!NILP (type)) |
| 593 | { |
| 594 | Lisp_Object selected |
| 595 | = XVECTOR (item_properties)->contents[ITEM_PROPERTY_SELECTED]; |
| 596 | |
| 597 | if (skp->notbuttons) |
| 598 | /* The first button. Line up previous items in this menu. */ |
| 599 | { |
| 600 | int index = skp->notbuttons; /* Index for first item this menu. */ |
| 601 | int submenu = 0; |
| 602 | Lisp_Object tem; |
| 603 | while (index < menu_items_used) |
| 604 | { |
| 605 | tem |
| 606 | = XVECTOR (menu_items)->contents[index + MENU_ITEMS_ITEM_NAME]; |
| 607 | if (NILP (tem)) |
| 608 | { |
| 609 | index++; |
| 610 | submenu++; /* Skip sub menu. */ |
| 611 | } |
| 612 | else if (EQ (tem, Qlambda)) |
| 613 | { |
| 614 | index++; |
| 615 | submenu--; /* End sub menu. */ |
| 616 | } |
| 617 | else if (EQ (tem, Qt)) |
| 618 | index += 3; /* Skip new pane marker. */ |
| 619 | else if (EQ (tem, Qquote)) |
| 620 | index++; /* Skip a left, right divider. */ |
| 621 | else |
| 622 | { |
| 623 | if (!submenu && SREF (tem, 0) != '\0' |
| 624 | && SREF (tem, 0) != '-') |
| 625 | XVECTOR (menu_items)->contents[index + MENU_ITEMS_ITEM_NAME] |
| 626 | = concat2 (build_string (" "), tem); |
| 627 | index += MENU_ITEMS_ITEM_LENGTH; |
| 628 | } |
| 629 | } |
| 630 | skp->notbuttons = 0; |
| 631 | } |
| 632 | |
| 633 | /* Calculate prefix, if any, for this item. */ |
| 634 | if (EQ (type, QCtoggle)) |
| 635 | prefix = build_string (NILP (selected) ? "[ ] " : "[X] "); |
| 636 | else if (EQ (type, QCradio)) |
| 637 | prefix = build_string (NILP (selected) ? "( ) " : "(*) "); |
| 638 | } |
| 639 | /* Not a button. If we have earlier buttons, then we need a prefix. */ |
| 640 | else if (!skp->notbuttons && SREF (item_string, 0) != '\0' |
| 641 | && SREF (item_string, 0) != '-') |
| 642 | prefix = build_string (" "); |
| 643 | |
| 644 | if (!NILP (prefix)) |
| 645 | item_string = concat2 (prefix, item_string); |
| 646 | } |
| 647 | #endif /* not HAVE_BOXES */ |
| 648 | |
| 649 | #if ! defined (USE_X_TOOLKIT) && ! defined (USE_GTK) |
| 650 | if (!NILP (map)) |
| 651 | /* Indicate visually that this is a submenu. */ |
| 652 | item_string = concat2 (item_string, build_string (" >")); |
| 653 | #endif |
| 654 | |
| 655 | push_menu_item (item_string, enabled, key, |
| 656 | XVECTOR (item_properties)->contents[ITEM_PROPERTY_DEF], |
| 657 | XVECTOR (item_properties)->contents[ITEM_PROPERTY_KEYEQ], |
| 658 | XVECTOR (item_properties)->contents[ITEM_PROPERTY_TYPE], |
| 659 | XVECTOR (item_properties)->contents[ITEM_PROPERTY_SELECTED], |
| 660 | XVECTOR (item_properties)->contents[ITEM_PROPERTY_HELP]); |
| 661 | |
| 662 | #if defined (USE_X_TOOLKIT) || defined (USE_GTK) |
| 663 | /* Display a submenu using the toolkit. */ |
| 664 | if (! (NILP (map) || NILP (enabled))) |
| 665 | { |
| 666 | push_submenu_start (); |
| 667 | single_keymap_panes (map, Qnil, key, 0, skp->maxdepth - 1); |
| 668 | push_submenu_end (); |
| 669 | } |
| 670 | #endif |
| 671 | } |
| 672 | \f |
| 673 | /* Push all the panes and items of a menu described by the |
| 674 | alist-of-alists MENU. |
| 675 | This handles old-fashioned calls to x-popup-menu. */ |
| 676 | |
| 677 | static void |
| 678 | list_of_panes (menu) |
| 679 | Lisp_Object menu; |
| 680 | { |
| 681 | Lisp_Object tail; |
| 682 | |
| 683 | init_menu_items (); |
| 684 | |
| 685 | for (tail = menu; CONSP (tail); tail = XCDR (tail)) |
| 686 | { |
| 687 | Lisp_Object elt, pane_name, pane_data; |
| 688 | elt = XCAR (tail); |
| 689 | pane_name = Fcar (elt); |
| 690 | CHECK_STRING (pane_name); |
| 691 | push_menu_pane (ENCODE_MENU_STRING (pane_name), Qnil); |
| 692 | pane_data = Fcdr (elt); |
| 693 | CHECK_CONS (pane_data); |
| 694 | list_of_items (pane_data); |
| 695 | } |
| 696 | |
| 697 | finish_menu_items (); |
| 698 | } |
| 699 | |
| 700 | /* Push the items in a single pane defined by the alist PANE. */ |
| 701 | |
| 702 | static void |
| 703 | list_of_items (pane) |
| 704 | Lisp_Object pane; |
| 705 | { |
| 706 | Lisp_Object tail, item, item1; |
| 707 | |
| 708 | for (tail = pane; CONSP (tail); tail = XCDR (tail)) |
| 709 | { |
| 710 | item = XCAR (tail); |
| 711 | if (STRINGP (item)) |
| 712 | push_menu_item (ENCODE_MENU_STRING (item), Qnil, Qnil, Qt, |
| 713 | Qnil, Qnil, Qnil, Qnil); |
| 714 | else if (CONSP (item)) |
| 715 | { |
| 716 | item1 = XCAR (item); |
| 717 | CHECK_STRING (item1); |
| 718 | push_menu_item (ENCODE_MENU_STRING (item1), Qt, XCDR (item), |
| 719 | Qt, Qnil, Qnil, Qnil, Qnil); |
| 720 | } |
| 721 | else |
| 722 | push_left_right_boundary (); |
| 723 | |
| 724 | } |
| 725 | } |
| 726 | \f |
| 727 | #ifdef HAVE_X_WINDOWS |
| 728 | /* Return the mouse position in *X and *Y. The coordinates are window |
| 729 | relative for the edit window in frame F. |
| 730 | This is for Fx_popup_menu. The mouse_position_hook can not |
| 731 | be used for X, as it returns window relative coordinates |
| 732 | for the window where the mouse is in. This could be the menu bar, |
| 733 | the scroll bar or the edit window. Fx_popup_menu needs to be |
| 734 | sure it is the edit window. */ |
| 735 | static void |
| 736 | mouse_position_for_popup (f, x, y) |
| 737 | FRAME_PTR f; |
| 738 | int *x; |
| 739 | int *y; |
| 740 | { |
| 741 | Window root, dummy_window; |
| 742 | int dummy; |
| 743 | |
| 744 | BLOCK_INPUT; |
| 745 | |
| 746 | XQueryPointer (FRAME_X_DISPLAY (f), |
| 747 | DefaultRootWindow (FRAME_X_DISPLAY (f)), |
| 748 | |
| 749 | /* The root window which contains the pointer. */ |
| 750 | &root, |
| 751 | |
| 752 | /* Window pointer is on, not used */ |
| 753 | &dummy_window, |
| 754 | |
| 755 | /* The position on that root window. */ |
| 756 | x, y, |
| 757 | |
| 758 | /* x/y in dummy_window coordinates, not used. */ |
| 759 | &dummy, &dummy, |
| 760 | |
| 761 | /* Modifier keys and pointer buttons, about which |
| 762 | we don't care. */ |
| 763 | (unsigned int *) &dummy); |
| 764 | |
| 765 | UNBLOCK_INPUT; |
| 766 | |
| 767 | /* xmenu_show expects window coordinates, not root window |
| 768 | coordinates. Translate. */ |
| 769 | *x -= f->left_pos + FRAME_OUTER_TO_INNER_DIFF_X (f); |
| 770 | *y -= f->top_pos + FRAME_OUTER_TO_INNER_DIFF_Y (f); |
| 771 | } |
| 772 | |
| 773 | #endif /* HAVE_X_WINDOWS */ |
| 774 | |
| 775 | DEFUN ("x-popup-menu", Fx_popup_menu, Sx_popup_menu, 2, 2, 0, |
| 776 | doc: /* Pop up a deck-of-cards menu and return user's selection. |
| 777 | POSITION is a position specification. This is either a mouse button event |
| 778 | or a list ((XOFFSET YOFFSET) WINDOW) |
| 779 | where XOFFSET and YOFFSET are positions in pixels from the top left |
| 780 | corner of WINDOW. (WINDOW may be a window or a frame object.) |
| 781 | This controls the position of the top left of the menu as a whole. |
| 782 | If POSITION is t, it means to use the current mouse position. |
| 783 | |
| 784 | MENU is a specifier for a menu. For the simplest case, MENU is a keymap. |
| 785 | The menu items come from key bindings that have a menu string as well as |
| 786 | a definition; actually, the "definition" in such a key binding looks like |
| 787 | \(STRING . REAL-DEFINITION). To give the menu a title, put a string into |
| 788 | the keymap as a top-level element. |
| 789 | |
| 790 | If REAL-DEFINITION is nil, that puts a nonselectable string in the menu. |
| 791 | Otherwise, REAL-DEFINITION should be a valid key binding definition. |
| 792 | |
| 793 | You can also use a list of keymaps as MENU. |
| 794 | Then each keymap makes a separate pane. |
| 795 | |
| 796 | When MENU is a keymap or a list of keymaps, the return value is the |
| 797 | list of events corresponding to the user's choice. Note that |
| 798 | `x-popup-menu' does not actually execute the command bound to that |
| 799 | sequence of events. |
| 800 | |
| 801 | Alternatively, you can specify a menu of multiple panes |
| 802 | with a list of the form (TITLE PANE1 PANE2...), |
| 803 | where each pane is a list of form (TITLE ITEM1 ITEM2...). |
| 804 | Each ITEM is normally a cons cell (STRING . VALUE); |
| 805 | but a string can appear as an item--that makes a nonselectable line |
| 806 | in the menu. |
| 807 | With this form of menu, the return value is VALUE from the chosen item. |
| 808 | |
| 809 | If POSITION is nil, don't display the menu at all, just precalculate the |
| 810 | cached information about equivalent key sequences. |
| 811 | |
| 812 | If the user gets rid of the menu without making a valid choice, for |
| 813 | instance by clicking the mouse away from a valid choice or by typing |
| 814 | keyboard input, then this normally results in a quit and |
| 815 | `x-popup-menu' does not return. But if POSITION is a mouse button |
| 816 | event (indicating that the user invoked the menu with the mouse) then |
| 817 | no quit occurs and `x-popup-menu' returns nil. */) |
| 818 | (position, menu) |
| 819 | Lisp_Object position, menu; |
| 820 | { |
| 821 | Lisp_Object keymap, tem; |
| 822 | int xpos = 0, ypos = 0; |
| 823 | Lisp_Object title; |
| 824 | char *error_name = NULL; |
| 825 | Lisp_Object selection; |
| 826 | FRAME_PTR f = NULL; |
| 827 | Lisp_Object x, y, window; |
| 828 | int keymaps = 0; |
| 829 | int for_click = 0; |
| 830 | int specpdl_count = SPECPDL_INDEX (); |
| 831 | struct gcpro gcpro1; |
| 832 | |
| 833 | #ifdef HAVE_MENUS |
| 834 | if (! NILP (position)) |
| 835 | { |
| 836 | int get_current_pos_p = 0; |
| 837 | check_x (); |
| 838 | |
| 839 | /* Decode the first argument: find the window and the coordinates. */ |
| 840 | if (EQ (position, Qt) |
| 841 | || (CONSP (position) && (EQ (XCAR (position), Qmenu_bar) |
| 842 | || EQ (XCAR (position), Qtool_bar)))) |
| 843 | { |
| 844 | get_current_pos_p = 1; |
| 845 | } |
| 846 | else |
| 847 | { |
| 848 | tem = Fcar (position); |
| 849 | if (CONSP (tem)) |
| 850 | { |
| 851 | window = Fcar (Fcdr (position)); |
| 852 | x = XCAR (tem); |
| 853 | y = Fcar (XCDR (tem)); |
| 854 | } |
| 855 | else |
| 856 | { |
| 857 | for_click = 1; |
| 858 | tem = Fcar (Fcdr (position)); /* EVENT_START (position) */ |
| 859 | window = Fcar (tem); /* POSN_WINDOW (tem) */ |
| 860 | tem = Fcar (Fcdr (Fcdr (tem))); /* POSN_WINDOW_POSN (tem) */ |
| 861 | x = Fcar (tem); |
| 862 | y = Fcdr (tem); |
| 863 | } |
| 864 | |
| 865 | /* If a click happens in an external tool bar or a detached |
| 866 | tool bar, x and y is NIL. In that case, use the current |
| 867 | mouse position. This happens for the help button in the |
| 868 | tool bar. Ideally popup-menu should pass NIL to |
| 869 | this function, but it doesn't. */ |
| 870 | if (NILP (x) && NILP (y)) |
| 871 | get_current_pos_p = 1; |
| 872 | } |
| 873 | |
| 874 | if (get_current_pos_p) |
| 875 | { |
| 876 | /* Use the mouse's current position. */ |
| 877 | FRAME_PTR new_f = SELECTED_FRAME (); |
| 878 | #ifdef HAVE_X_WINDOWS |
| 879 | /* Can't use mouse_position_hook for X since it returns |
| 880 | coordinates relative to the window the mouse is in, |
| 881 | we need coordinates relative to the edit widget always. */ |
| 882 | if (new_f != 0) |
| 883 | { |
| 884 | int cur_x, cur_y; |
| 885 | |
| 886 | mouse_position_for_popup (new_f, &cur_x, &cur_y); |
| 887 | /* cur_x/y may be negative, so use make_number. */ |
| 888 | x = make_number (cur_x); |
| 889 | y = make_number (cur_y); |
| 890 | } |
| 891 | |
| 892 | #else /* not HAVE_X_WINDOWS */ |
| 893 | Lisp_Object bar_window; |
| 894 | enum scroll_bar_part part; |
| 895 | unsigned long time; |
| 896 | |
| 897 | if (mouse_position_hook) |
| 898 | (*mouse_position_hook) (&new_f, 1, &bar_window, |
| 899 | &part, &x, &y, &time); |
| 900 | #endif /* not HAVE_X_WINDOWS */ |
| 901 | |
| 902 | if (new_f != 0) |
| 903 | XSETFRAME (window, new_f); |
| 904 | else |
| 905 | { |
| 906 | window = selected_window; |
| 907 | XSETFASTINT (x, 0); |
| 908 | XSETFASTINT (y, 0); |
| 909 | } |
| 910 | } |
| 911 | |
| 912 | CHECK_NUMBER (x); |
| 913 | CHECK_NUMBER (y); |
| 914 | |
| 915 | /* Decode where to put the menu. */ |
| 916 | |
| 917 | if (FRAMEP (window)) |
| 918 | { |
| 919 | f = XFRAME (window); |
| 920 | xpos = 0; |
| 921 | ypos = 0; |
| 922 | } |
| 923 | else if (WINDOWP (window)) |
| 924 | { |
| 925 | CHECK_LIVE_WINDOW (window); |
| 926 | f = XFRAME (WINDOW_FRAME (XWINDOW (window))); |
| 927 | |
| 928 | xpos = WINDOW_LEFT_EDGE_X (XWINDOW (window)); |
| 929 | ypos = WINDOW_TOP_EDGE_Y (XWINDOW (window)); |
| 930 | } |
| 931 | else |
| 932 | /* ??? Not really clean; should be CHECK_WINDOW_OR_FRAME, |
| 933 | but I don't want to make one now. */ |
| 934 | CHECK_WINDOW (window); |
| 935 | |
| 936 | xpos += XINT (x); |
| 937 | ypos += XINT (y); |
| 938 | |
| 939 | XSETFRAME (Vmenu_updating_frame, f); |
| 940 | } |
| 941 | else |
| 942 | Vmenu_updating_frame = Qnil; |
| 943 | #endif /* HAVE_MENUS */ |
| 944 | |
| 945 | record_unwind_protect (unuse_menu_items, Qnil); |
| 946 | title = Qnil; |
| 947 | GCPRO1 (title); |
| 948 | |
| 949 | /* Decode the menu items from what was specified. */ |
| 950 | |
| 951 | keymap = get_keymap (menu, 0, 0); |
| 952 | if (CONSP (keymap)) |
| 953 | { |
| 954 | /* We were given a keymap. Extract menu info from the keymap. */ |
| 955 | Lisp_Object prompt; |
| 956 | |
| 957 | /* Extract the detailed info to make one pane. */ |
| 958 | keymap_panes (&menu, 1, NILP (position)); |
| 959 | |
| 960 | /* Search for a string appearing directly as an element of the keymap. |
| 961 | That string is the title of the menu. */ |
| 962 | prompt = Fkeymap_prompt (keymap); |
| 963 | if (NILP (title) && !NILP (prompt)) |
| 964 | title = prompt; |
| 965 | |
| 966 | /* Make that be the pane title of the first pane. */ |
| 967 | if (!NILP (prompt) && menu_items_n_panes >= 0) |
| 968 | XVECTOR (menu_items)->contents[MENU_ITEMS_PANE_NAME] = prompt; |
| 969 | |
| 970 | keymaps = 1; |
| 971 | } |
| 972 | else if (CONSP (menu) && KEYMAPP (XCAR (menu))) |
| 973 | { |
| 974 | /* We were given a list of keymaps. */ |
| 975 | int nmaps = XFASTINT (Flength (menu)); |
| 976 | Lisp_Object *maps |
| 977 | = (Lisp_Object *) alloca (nmaps * sizeof (Lisp_Object)); |
| 978 | int i; |
| 979 | |
| 980 | title = Qnil; |
| 981 | |
| 982 | /* The first keymap that has a prompt string |
| 983 | supplies the menu title. */ |
| 984 | for (tem = menu, i = 0; CONSP (tem); tem = XCDR (tem)) |
| 985 | { |
| 986 | Lisp_Object prompt; |
| 987 | |
| 988 | maps[i++] = keymap = get_keymap (XCAR (tem), 1, 0); |
| 989 | |
| 990 | prompt = Fkeymap_prompt (keymap); |
| 991 | if (NILP (title) && !NILP (prompt)) |
| 992 | title = prompt; |
| 993 | } |
| 994 | |
| 995 | /* Extract the detailed info to make one pane. */ |
| 996 | keymap_panes (maps, nmaps, NILP (position)); |
| 997 | |
| 998 | /* Make the title be the pane title of the first pane. */ |
| 999 | if (!NILP (title) && menu_items_n_panes >= 0) |
| 1000 | XVECTOR (menu_items)->contents[MENU_ITEMS_PANE_NAME] = title; |
| 1001 | |
| 1002 | keymaps = 1; |
| 1003 | } |
| 1004 | else |
| 1005 | { |
| 1006 | /* We were given an old-fashioned menu. */ |
| 1007 | title = Fcar (menu); |
| 1008 | CHECK_STRING (title); |
| 1009 | |
| 1010 | list_of_panes (Fcdr (menu)); |
| 1011 | |
| 1012 | keymaps = 0; |
| 1013 | } |
| 1014 | |
| 1015 | unbind_to (specpdl_count, Qnil); |
| 1016 | |
| 1017 | if (NILP (position)) |
| 1018 | { |
| 1019 | discard_menu_items (); |
| 1020 | UNGCPRO; |
| 1021 | return Qnil; |
| 1022 | } |
| 1023 | |
| 1024 | #ifdef HAVE_MENUS |
| 1025 | /* Display them in a menu. */ |
| 1026 | BLOCK_INPUT; |
| 1027 | |
| 1028 | selection = xmenu_show (f, xpos, ypos, for_click, |
| 1029 | keymaps, title, &error_name); |
| 1030 | UNBLOCK_INPUT; |
| 1031 | |
| 1032 | discard_menu_items (); |
| 1033 | |
| 1034 | UNGCPRO; |
| 1035 | #endif /* HAVE_MENUS */ |
| 1036 | |
| 1037 | if (error_name) error (error_name); |
| 1038 | return selection; |
| 1039 | } |
| 1040 | |
| 1041 | #ifdef HAVE_MENUS |
| 1042 | |
| 1043 | DEFUN ("x-popup-dialog", Fx_popup_dialog, Sx_popup_dialog, 2, 3, 0, |
| 1044 | doc: /* Pop up a dialog box and return user's selection. |
| 1045 | POSITION specifies which frame to use. |
| 1046 | This is normally a mouse button event or a window or frame. |
| 1047 | If POSITION is t, it means to use the frame the mouse is on. |
| 1048 | The dialog box appears in the middle of the specified frame. |
| 1049 | |
| 1050 | CONTENTS specifies the alternatives to display in the dialog box. |
| 1051 | It is a list of the form (DIALOG ITEM1 ITEM2...). |
| 1052 | Each ITEM is a cons cell (STRING . VALUE). |
| 1053 | The return value is VALUE from the chosen item. |
| 1054 | |
| 1055 | An ITEM may also be just a string--that makes a nonselectable item. |
| 1056 | An ITEM may also be nil--that means to put all preceding items |
| 1057 | on the left of the dialog box and all following items on the right. |
| 1058 | \(By default, approximately half appear on each side.) |
| 1059 | |
| 1060 | If HEADER is non-nil, the frame title for the box is "Information", |
| 1061 | otherwise it is "Question". |
| 1062 | |
| 1063 | If the user gets rid of the dialog box without making a valid choice, |
| 1064 | for instance using the window manager, then this produces a quit and |
| 1065 | `x-popup-dialog' does not return. */) |
| 1066 | (position, contents, header) |
| 1067 | Lisp_Object position, contents, header; |
| 1068 | { |
| 1069 | FRAME_PTR f = NULL; |
| 1070 | Lisp_Object window; |
| 1071 | |
| 1072 | check_x (); |
| 1073 | |
| 1074 | /* Decode the first argument: find the window or frame to use. */ |
| 1075 | if (EQ (position, Qt) |
| 1076 | || (CONSP (position) && (EQ (XCAR (position), Qmenu_bar) |
| 1077 | || EQ (XCAR (position), Qtool_bar)))) |
| 1078 | { |
| 1079 | #if 0 /* Using the frame the mouse is on may not be right. */ |
| 1080 | /* Use the mouse's current position. */ |
| 1081 | FRAME_PTR new_f = SELECTED_FRAME (); |
| 1082 | Lisp_Object bar_window; |
| 1083 | enum scroll_bar_part part; |
| 1084 | unsigned long time; |
| 1085 | Lisp_Object x, y; |
| 1086 | |
| 1087 | (*mouse_position_hook) (&new_f, 1, &bar_window, &part, &x, &y, &time); |
| 1088 | |
| 1089 | if (new_f != 0) |
| 1090 | XSETFRAME (window, new_f); |
| 1091 | else |
| 1092 | window = selected_window; |
| 1093 | #endif |
| 1094 | window = selected_window; |
| 1095 | } |
| 1096 | else if (CONSP (position)) |
| 1097 | { |
| 1098 | Lisp_Object tem; |
| 1099 | tem = Fcar (position); |
| 1100 | if (CONSP (tem)) |
| 1101 | window = Fcar (Fcdr (position)); |
| 1102 | else |
| 1103 | { |
| 1104 | tem = Fcar (Fcdr (position)); /* EVENT_START (position) */ |
| 1105 | window = Fcar (tem); /* POSN_WINDOW (tem) */ |
| 1106 | } |
| 1107 | } |
| 1108 | else if (WINDOWP (position) || FRAMEP (position)) |
| 1109 | window = position; |
| 1110 | else |
| 1111 | window = Qnil; |
| 1112 | |
| 1113 | /* Decode where to put the menu. */ |
| 1114 | |
| 1115 | if (FRAMEP (window)) |
| 1116 | f = XFRAME (window); |
| 1117 | else if (WINDOWP (window)) |
| 1118 | { |
| 1119 | CHECK_LIVE_WINDOW (window); |
| 1120 | f = XFRAME (WINDOW_FRAME (XWINDOW (window))); |
| 1121 | } |
| 1122 | else |
| 1123 | /* ??? Not really clean; should be CHECK_WINDOW_OR_FRAME, |
| 1124 | but I don't want to make one now. */ |
| 1125 | CHECK_WINDOW (window); |
| 1126 | |
| 1127 | #if ! defined (USE_X_TOOLKIT) && ! defined (USE_GTK) |
| 1128 | /* Display a menu with these alternatives |
| 1129 | in the middle of frame F. */ |
| 1130 | { |
| 1131 | Lisp_Object x, y, frame, newpos; |
| 1132 | XSETFRAME (frame, f); |
| 1133 | XSETINT (x, x_pixel_width (f) / 2); |
| 1134 | XSETINT (y, x_pixel_height (f) / 2); |
| 1135 | newpos = Fcons (Fcons (x, Fcons (y, Qnil)), Fcons (frame, Qnil)); |
| 1136 | |
| 1137 | return Fx_popup_menu (newpos, |
| 1138 | Fcons (Fcar (contents), Fcons (contents, Qnil))); |
| 1139 | } |
| 1140 | #else |
| 1141 | { |
| 1142 | Lisp_Object title; |
| 1143 | char *error_name; |
| 1144 | Lisp_Object selection; |
| 1145 | int specpdl_count = SPECPDL_INDEX (); |
| 1146 | |
| 1147 | /* Decode the dialog items from what was specified. */ |
| 1148 | title = Fcar (contents); |
| 1149 | CHECK_STRING (title); |
| 1150 | record_unwind_protect (unuse_menu_items, Qnil); |
| 1151 | |
| 1152 | if (NILP (Fcar (Fcdr (contents)))) |
| 1153 | /* No buttons specified, add an "Ok" button so users can pop down |
| 1154 | the dialog. Also, the lesstif/motif version crashes if there are |
| 1155 | no buttons. */ |
| 1156 | contents = Fcons (title, Fcons (Fcons (build_string ("Ok"), Qt), Qnil)); |
| 1157 | |
| 1158 | list_of_panes (Fcons (contents, Qnil)); |
| 1159 | |
| 1160 | /* Display them in a dialog box. */ |
| 1161 | BLOCK_INPUT; |
| 1162 | selection = xdialog_show (f, 0, title, header, &error_name); |
| 1163 | UNBLOCK_INPUT; |
| 1164 | |
| 1165 | unbind_to (specpdl_count, Qnil); |
| 1166 | discard_menu_items (); |
| 1167 | |
| 1168 | if (error_name) error (error_name); |
| 1169 | return selection; |
| 1170 | } |
| 1171 | #endif |
| 1172 | } |
| 1173 | |
| 1174 | |
| 1175 | #ifndef MSDOS |
| 1176 | |
| 1177 | /* Set menu_items_inuse so no other popup menu or dialog is created. */ |
| 1178 | |
| 1179 | void |
| 1180 | x_menu_set_in_use (in_use) |
| 1181 | int in_use; |
| 1182 | { |
| 1183 | menu_items_inuse = in_use ? Qt : Qnil; |
| 1184 | popup_activated_flag = in_use; |
| 1185 | #ifdef USE_X_TOOLKIT |
| 1186 | if (popup_activated_flag) |
| 1187 | x_activate_timeout_atimer (); |
| 1188 | #endif |
| 1189 | } |
| 1190 | |
| 1191 | /* Wait for an X event to arrive or for a timer to expire. */ |
| 1192 | |
| 1193 | void |
| 1194 | x_menu_wait_for_event (void *data) |
| 1195 | { |
| 1196 | extern EMACS_TIME timer_check P_ ((int)); |
| 1197 | |
| 1198 | /* Another way to do this is to register a timer callback, that can be |
| 1199 | done in GTK and Xt. But we have to do it like this when using only X |
| 1200 | anyway, and with callbacks we would have three variants for timer handling |
| 1201 | instead of the small ifdefs below. */ |
| 1202 | |
| 1203 | while ( |
| 1204 | #ifdef USE_X_TOOLKIT |
| 1205 | ! XtAppPending (Xt_app_con) |
| 1206 | #elif defined USE_GTK |
| 1207 | ! gtk_events_pending () |
| 1208 | #else |
| 1209 | ! XPending ((Display*) data) |
| 1210 | #endif |
| 1211 | ) |
| 1212 | { |
| 1213 | EMACS_TIME next_time = timer_check (1); |
| 1214 | long secs = EMACS_SECS (next_time); |
| 1215 | long usecs = EMACS_USECS (next_time); |
| 1216 | SELECT_TYPE read_fds; |
| 1217 | struct x_display_info *dpyinfo; |
| 1218 | int n = 0; |
| 1219 | |
| 1220 | FD_ZERO (&read_fds); |
| 1221 | for (dpyinfo = x_display_list; dpyinfo; dpyinfo = dpyinfo->next) |
| 1222 | { |
| 1223 | int fd = ConnectionNumber (dpyinfo->display); |
| 1224 | FD_SET (fd, &read_fds); |
| 1225 | if (fd > n) n = fd; |
| 1226 | } |
| 1227 | |
| 1228 | if (secs < 0 || (secs == 0 && usecs == 0)) |
| 1229 | { |
| 1230 | /* Sometimes timer_check returns -1 (no timers) even if there are |
| 1231 | timers. So do a timeout anyway. */ |
| 1232 | EMACS_SET_SECS (next_time, 1); |
| 1233 | EMACS_SET_USECS (next_time, 0); |
| 1234 | } |
| 1235 | |
| 1236 | select (n + 1, &read_fds, (SELECT_TYPE *)0, (SELECT_TYPE *)0, &next_time); |
| 1237 | } |
| 1238 | } |
| 1239 | #endif /* ! MSDOS */ |
| 1240 | |
| 1241 | \f |
| 1242 | #if defined (USE_X_TOOLKIT) || defined (USE_GTK) |
| 1243 | |
| 1244 | #ifdef USE_X_TOOLKIT |
| 1245 | |
| 1246 | /* Loop in Xt until the menu pulldown or dialog popup has been |
| 1247 | popped down (deactivated). This is used for x-popup-menu |
| 1248 | and x-popup-dialog; it is not used for the menu bar. |
| 1249 | |
| 1250 | NOTE: All calls to popup_get_selection should be protected |
| 1251 | with BLOCK_INPUT, UNBLOCK_INPUT wrappers. */ |
| 1252 | |
| 1253 | static void |
| 1254 | popup_get_selection (initial_event, dpyinfo, id, do_timers) |
| 1255 | XEvent *initial_event; |
| 1256 | struct x_display_info *dpyinfo; |
| 1257 | LWLIB_ID id; |
| 1258 | int do_timers; |
| 1259 | { |
| 1260 | XEvent event; |
| 1261 | |
| 1262 | while (popup_activated_flag) |
| 1263 | { |
| 1264 | if (initial_event) |
| 1265 | { |
| 1266 | event = *initial_event; |
| 1267 | initial_event = 0; |
| 1268 | } |
| 1269 | else |
| 1270 | { |
| 1271 | if (do_timers) x_menu_wait_for_event (0); |
| 1272 | XtAppNextEvent (Xt_app_con, &event); |
| 1273 | } |
| 1274 | |
| 1275 | /* Make sure we don't consider buttons grabbed after menu goes. |
| 1276 | And make sure to deactivate for any ButtonRelease, |
| 1277 | even if XtDispatchEvent doesn't do that. */ |
| 1278 | if (event.type == ButtonRelease |
| 1279 | && dpyinfo->display == event.xbutton.display) |
| 1280 | { |
| 1281 | dpyinfo->grabbed &= ~(1 << event.xbutton.button); |
| 1282 | #ifdef USE_MOTIF /* Pretending that the event came from a |
| 1283 | Btn1Down seems the only way to convince Motif to |
| 1284 | activate its callbacks; setting the XmNmenuPost |
| 1285 | isn't working. --marcus@sysc.pdx.edu. */ |
| 1286 | event.xbutton.button = 1; |
| 1287 | /* Motif only pops down menus when no Ctrl, Alt or Mod |
| 1288 | key is pressed and the button is released. So reset key state |
| 1289 | so Motif thinks this is the case. */ |
| 1290 | event.xbutton.state = 0; |
| 1291 | #endif |
| 1292 | } |
| 1293 | /* Pop down on C-g and Escape. */ |
| 1294 | else if (event.type == KeyPress |
| 1295 | && dpyinfo->display == event.xbutton.display) |
| 1296 | { |
| 1297 | KeySym keysym = XLookupKeysym (&event.xkey, 0); |
| 1298 | |
| 1299 | if ((keysym == XK_g && (event.xkey.state & ControlMask) != 0) |
| 1300 | || keysym == XK_Escape) /* Any escape, ignore modifiers. */ |
| 1301 | popup_activated_flag = 0; |
| 1302 | } |
| 1303 | |
| 1304 | x_dispatch_event (&event, event.xany.display); |
| 1305 | } |
| 1306 | } |
| 1307 | |
| 1308 | DEFUN ("menu-bar-open", Fmenu_bar_open, Smenu_bar_open, 0, 1, "i", |
| 1309 | doc: /* Start key navigation of the menu bar in FRAME. |
| 1310 | This initially opens the first menu bar item and you can then navigate with the |
| 1311 | arrow keys, select a menu entry with the return key or cancel with the |
| 1312 | escape key. If FRAME has no menu bar this function does nothing. |
| 1313 | |
| 1314 | If FRAME is nil or not given, use the selected frame. */) |
| 1315 | (frame) |
| 1316 | Lisp_Object frame; |
| 1317 | { |
| 1318 | XEvent ev; |
| 1319 | FRAME_PTR f = check_x_frame (frame); |
| 1320 | Widget menubar; |
| 1321 | BLOCK_INPUT; |
| 1322 | |
| 1323 | if (FRAME_EXTERNAL_MENU_BAR (f)) |
| 1324 | set_frame_menubar (f, 0, 1); |
| 1325 | |
| 1326 | menubar = FRAME_X_OUTPUT (f)->menubar_widget; |
| 1327 | if (menubar) |
| 1328 | { |
| 1329 | Window child; |
| 1330 | int error_p = 0; |
| 1331 | |
| 1332 | x_catch_errors (FRAME_X_DISPLAY (f)); |
| 1333 | memset (&ev, 0, sizeof ev); |
| 1334 | ev.xbutton.display = FRAME_X_DISPLAY (f); |
| 1335 | ev.xbutton.window = XtWindow (menubar); |
| 1336 | ev.xbutton.root = FRAME_X_DISPLAY_INFO (f)->root_window; |
| 1337 | ev.xbutton.time = XtLastTimestampProcessed (FRAME_X_DISPLAY (f)); |
| 1338 | ev.xbutton.button = Button1; |
| 1339 | ev.xbutton.x = ev.xbutton.y = FRAME_MENUBAR_HEIGHT (f) / 2; |
| 1340 | ev.xbutton.same_screen = True; |
| 1341 | |
| 1342 | #ifdef USE_MOTIF |
| 1343 | { |
| 1344 | Arg al[2]; |
| 1345 | WidgetList list; |
| 1346 | Cardinal nr; |
| 1347 | XtSetArg (al[0], XtNchildren, &list); |
| 1348 | XtSetArg (al[1], XtNnumChildren, &nr); |
| 1349 | XtGetValues (menubar, al, 2); |
| 1350 | ev.xbutton.window = XtWindow (list[0]); |
| 1351 | } |
| 1352 | #endif |
| 1353 | |
| 1354 | XTranslateCoordinates (FRAME_X_DISPLAY (f), |
| 1355 | /* From-window, to-window. */ |
| 1356 | ev.xbutton.window, ev.xbutton.root, |
| 1357 | |
| 1358 | /* From-position, to-position. */ |
| 1359 | ev.xbutton.x, ev.xbutton.y, |
| 1360 | &ev.xbutton.x_root, &ev.xbutton.y_root, |
| 1361 | |
| 1362 | /* Child of win. */ |
| 1363 | &child); |
| 1364 | error_p = x_had_errors_p (FRAME_X_DISPLAY (f)); |
| 1365 | x_uncatch_errors (); |
| 1366 | |
| 1367 | if (! error_p) |
| 1368 | { |
| 1369 | ev.type = ButtonPress; |
| 1370 | ev.xbutton.state = 0; |
| 1371 | |
| 1372 | XtDispatchEvent (&ev); |
| 1373 | ev.xbutton.type = ButtonRelease; |
| 1374 | ev.xbutton.state = Button1Mask; |
| 1375 | XtDispatchEvent (&ev); |
| 1376 | } |
| 1377 | } |
| 1378 | |
| 1379 | UNBLOCK_INPUT; |
| 1380 | |
| 1381 | return Qnil; |
| 1382 | } |
| 1383 | #endif /* USE_X_TOOLKIT */ |
| 1384 | |
| 1385 | |
| 1386 | #ifdef USE_GTK |
| 1387 | DEFUN ("menu-bar-open", Fmenu_bar_open, Smenu_bar_open, 0, 1, "i", |
| 1388 | doc: /* Start key navigation of the menu bar in FRAME. |
| 1389 | This initially opens the first menu bar item and you can then navigate with the |
| 1390 | arrow keys, select a menu entry with the return key or cancel with the |
| 1391 | escape key. If FRAME has no menu bar this function does nothing. |
| 1392 | |
| 1393 | If FRAME is nil or not given, use the selected frame. */) |
| 1394 | (frame) |
| 1395 | Lisp_Object frame; |
| 1396 | { |
| 1397 | GtkWidget *menubar; |
| 1398 | FRAME_PTR f; |
| 1399 | |
| 1400 | /* gcc 2.95 doesn't accept the FRAME_PTR declaration after |
| 1401 | BLOCK_INPUT. */ |
| 1402 | |
| 1403 | BLOCK_INPUT; |
| 1404 | f = check_x_frame (frame); |
| 1405 | |
| 1406 | if (FRAME_EXTERNAL_MENU_BAR (f)) |
| 1407 | set_frame_menubar (f, 0, 1); |
| 1408 | |
| 1409 | menubar = FRAME_X_OUTPUT (f)->menubar_widget; |
| 1410 | if (menubar) |
| 1411 | { |
| 1412 | /* Activate the first menu. */ |
| 1413 | GList *children = gtk_container_get_children (GTK_CONTAINER (menubar)); |
| 1414 | |
| 1415 | gtk_menu_shell_select_item (GTK_MENU_SHELL (menubar), |
| 1416 | GTK_WIDGET (children->data)); |
| 1417 | |
| 1418 | popup_activated_flag = 1; |
| 1419 | g_list_free (children); |
| 1420 | } |
| 1421 | UNBLOCK_INPUT; |
| 1422 | |
| 1423 | return Qnil; |
| 1424 | } |
| 1425 | |
| 1426 | /* Loop util popup_activated_flag is set to zero in a callback. |
| 1427 | Used for popup menus and dialogs. */ |
| 1428 | |
| 1429 | static void |
| 1430 | popup_widget_loop (do_timers, widget) |
| 1431 | int do_timers; |
| 1432 | GtkWidget *widget; |
| 1433 | { |
| 1434 | ++popup_activated_flag; |
| 1435 | |
| 1436 | /* Process events in the Gtk event loop until done. */ |
| 1437 | while (popup_activated_flag) |
| 1438 | { |
| 1439 | if (do_timers) x_menu_wait_for_event (0); |
| 1440 | gtk_main_iteration (); |
| 1441 | } |
| 1442 | } |
| 1443 | #endif |
| 1444 | |
| 1445 | /* Activate the menu bar of frame F. |
| 1446 | This is called from keyboard.c when it gets the |
| 1447 | MENU_BAR_ACTIVATE_EVENT out of the Emacs event queue. |
| 1448 | |
| 1449 | To activate the menu bar, we use the X button-press event |
| 1450 | that was saved in saved_menu_event. |
| 1451 | That makes the toolkit do its thing. |
| 1452 | |
| 1453 | But first we recompute the menu bar contents (the whole tree). |
| 1454 | |
| 1455 | The reason for saving the button event until here, instead of |
| 1456 | passing it to the toolkit right away, is that we can safely |
| 1457 | execute Lisp code. */ |
| 1458 | |
| 1459 | void |
| 1460 | x_activate_menubar (f) |
| 1461 | FRAME_PTR f; |
| 1462 | { |
| 1463 | if (!f->output_data.x->saved_menu_event->type) |
| 1464 | return; |
| 1465 | |
| 1466 | #ifdef USE_GTK |
| 1467 | if (! xg_win_to_widget (FRAME_X_DISPLAY (f), |
| 1468 | f->output_data.x->saved_menu_event->xany.window)) |
| 1469 | return; |
| 1470 | #endif |
| 1471 | |
| 1472 | set_frame_menubar (f, 0, 1); |
| 1473 | BLOCK_INPUT; |
| 1474 | #ifdef USE_GTK |
| 1475 | XPutBackEvent (f->output_data.x->display_info->display, |
| 1476 | f->output_data.x->saved_menu_event); |
| 1477 | popup_activated_flag = 1; |
| 1478 | #else |
| 1479 | XtDispatchEvent (f->output_data.x->saved_menu_event); |
| 1480 | #endif |
| 1481 | UNBLOCK_INPUT; |
| 1482 | #ifdef USE_MOTIF |
| 1483 | if (f->output_data.x->saved_menu_event->type == ButtonRelease) |
| 1484 | pending_menu_activation = 1; |
| 1485 | #endif |
| 1486 | |
| 1487 | /* Ignore this if we get it a second time. */ |
| 1488 | f->output_data.x->saved_menu_event->type = 0; |
| 1489 | } |
| 1490 | |
| 1491 | /* Detect if a dialog or menu has been posted. */ |
| 1492 | |
| 1493 | int |
| 1494 | popup_activated () |
| 1495 | { |
| 1496 | return popup_activated_flag; |
| 1497 | } |
| 1498 | |
| 1499 | /* The following is used by delayed window autoselection. */ |
| 1500 | |
| 1501 | DEFUN ("menu-or-popup-active-p", Fmenu_or_popup_active_p, Smenu_or_popup_active_p, 0, 0, 0, |
| 1502 | doc: /* Return t if a menu or popup dialog is active. */) |
| 1503 | () |
| 1504 | { |
| 1505 | return (popup_activated ()) ? Qt : Qnil; |
| 1506 | } |
| 1507 | |
| 1508 | /* This callback is invoked when the user selects a menubar cascade |
| 1509 | pushbutton, but before the pulldown menu is posted. */ |
| 1510 | |
| 1511 | #ifndef USE_GTK |
| 1512 | static void |
| 1513 | popup_activate_callback (widget, id, client_data) |
| 1514 | Widget widget; |
| 1515 | LWLIB_ID id; |
| 1516 | XtPointer client_data; |
| 1517 | { |
| 1518 | popup_activated_flag = 1; |
| 1519 | #ifdef USE_X_TOOLKIT |
| 1520 | x_activate_timeout_atimer (); |
| 1521 | #endif |
| 1522 | } |
| 1523 | #endif |
| 1524 | |
| 1525 | /* This callback is invoked when a dialog or menu is finished being |
| 1526 | used and has been unposted. */ |
| 1527 | |
| 1528 | #ifdef USE_GTK |
| 1529 | static void |
| 1530 | popup_deactivate_callback (widget, client_data) |
| 1531 | GtkWidget *widget; |
| 1532 | gpointer client_data; |
| 1533 | { |
| 1534 | popup_activated_flag = 0; |
| 1535 | } |
| 1536 | #else |
| 1537 | static void |
| 1538 | popup_deactivate_callback (widget, id, client_data) |
| 1539 | Widget widget; |
| 1540 | LWLIB_ID id; |
| 1541 | XtPointer client_data; |
| 1542 | { |
| 1543 | popup_activated_flag = 0; |
| 1544 | } |
| 1545 | #endif |
| 1546 | |
| 1547 | |
| 1548 | /* Function that finds the frame for WIDGET and shows the HELP text |
| 1549 | for that widget. |
| 1550 | F is the frame if known, or NULL if not known. */ |
| 1551 | static void |
| 1552 | show_help_event (f, widget, help) |
| 1553 | FRAME_PTR f; |
| 1554 | xt_or_gtk_widget widget; |
| 1555 | Lisp_Object help; |
| 1556 | { |
| 1557 | Lisp_Object frame; |
| 1558 | |
| 1559 | if (f) |
| 1560 | { |
| 1561 | XSETFRAME (frame, f); |
| 1562 | kbd_buffer_store_help_event (frame, help); |
| 1563 | } |
| 1564 | else |
| 1565 | { |
| 1566 | #if 0 /* This code doesn't do anything useful. ++kfs */ |
| 1567 | /* WIDGET is the popup menu. It's parent is the frame's |
| 1568 | widget. See which frame that is. */ |
| 1569 | xt_or_gtk_widget frame_widget = XtParent (widget); |
| 1570 | Lisp_Object tail; |
| 1571 | |
| 1572 | for (tail = Vframe_list; GC_CONSP (tail); tail = XCDR (tail)) |
| 1573 | { |
| 1574 | frame = XCAR (tail); |
| 1575 | if (GC_FRAMEP (frame) |
| 1576 | && (f = XFRAME (frame), |
| 1577 | FRAME_X_P (f) && f->output_data.x->widget == frame_widget)) |
| 1578 | break; |
| 1579 | } |
| 1580 | #endif |
| 1581 | show_help_echo (help, Qnil, Qnil, Qnil, 1); |
| 1582 | } |
| 1583 | } |
| 1584 | |
| 1585 | /* Callback called when menu items are highlighted/unhighlighted |
| 1586 | while moving the mouse over them. WIDGET is the menu bar or menu |
| 1587 | popup widget. ID is its LWLIB_ID. CALL_DATA contains a pointer to |
| 1588 | the data structure for the menu item, or null in case of |
| 1589 | unhighlighting. */ |
| 1590 | |
| 1591 | #ifdef USE_GTK |
| 1592 | void |
| 1593 | menu_highlight_callback (widget, call_data) |
| 1594 | GtkWidget *widget; |
| 1595 | gpointer call_data; |
| 1596 | { |
| 1597 | xg_menu_item_cb_data *cb_data; |
| 1598 | Lisp_Object help; |
| 1599 | |
| 1600 | cb_data = (xg_menu_item_cb_data*) g_object_get_data (G_OBJECT (widget), |
| 1601 | XG_ITEM_DATA); |
| 1602 | if (! cb_data) return; |
| 1603 | |
| 1604 | help = call_data ? cb_data->help : Qnil; |
| 1605 | |
| 1606 | /* If popup_activated_flag is greater than 1 we are in a popup menu. |
| 1607 | Don't show help for them, they won't appear before the |
| 1608 | popup is popped down. */ |
| 1609 | if (popup_activated_flag <= 1) |
| 1610 | show_help_event (cb_data->cl_data->f, widget, help); |
| 1611 | } |
| 1612 | #else |
| 1613 | void |
| 1614 | menu_highlight_callback (widget, id, call_data) |
| 1615 | Widget widget; |
| 1616 | LWLIB_ID id; |
| 1617 | void *call_data; |
| 1618 | { |
| 1619 | struct frame *f; |
| 1620 | Lisp_Object help; |
| 1621 | |
| 1622 | widget_value *wv = (widget_value *) call_data; |
| 1623 | |
| 1624 | help = wv ? wv->help : Qnil; |
| 1625 | |
| 1626 | /* Determine the frame for the help event. */ |
| 1627 | f = menubar_id_to_frame (id); |
| 1628 | |
| 1629 | show_help_event (f, widget, help); |
| 1630 | } |
| 1631 | #endif |
| 1632 | |
| 1633 | /* Find the menu selection and store it in the keyboard buffer. |
| 1634 | F is the frame the menu is on. |
| 1635 | MENU_BAR_ITEMS_USED is the length of VECTOR. |
| 1636 | VECTOR is an array of menu events for the whole menu. */ |
| 1637 | |
| 1638 | static void |
| 1639 | find_and_call_menu_selection (f, menu_bar_items_used, vector, client_data) |
| 1640 | FRAME_PTR f; |
| 1641 | int menu_bar_items_used; |
| 1642 | Lisp_Object vector; |
| 1643 | void *client_data; |
| 1644 | { |
| 1645 | Lisp_Object prefix, entry; |
| 1646 | Lisp_Object *subprefix_stack; |
| 1647 | int submenu_depth = 0; |
| 1648 | int i; |
| 1649 | |
| 1650 | entry = Qnil; |
| 1651 | subprefix_stack = (Lisp_Object *) alloca (menu_bar_items_used * sizeof (Lisp_Object)); |
| 1652 | prefix = Qnil; |
| 1653 | i = 0; |
| 1654 | |
| 1655 | while (i < menu_bar_items_used) |
| 1656 | { |
| 1657 | if (EQ (XVECTOR (vector)->contents[i], Qnil)) |
| 1658 | { |
| 1659 | subprefix_stack[submenu_depth++] = prefix; |
| 1660 | prefix = entry; |
| 1661 | i++; |
| 1662 | } |
| 1663 | else if (EQ (XVECTOR (vector)->contents[i], Qlambda)) |
| 1664 | { |
| 1665 | prefix = subprefix_stack[--submenu_depth]; |
| 1666 | i++; |
| 1667 | } |
| 1668 | else if (EQ (XVECTOR (vector)->contents[i], Qt)) |
| 1669 | { |
| 1670 | prefix = XVECTOR (vector)->contents[i + MENU_ITEMS_PANE_PREFIX]; |
| 1671 | i += MENU_ITEMS_PANE_LENGTH; |
| 1672 | } |
| 1673 | else |
| 1674 | { |
| 1675 | entry = XVECTOR (vector)->contents[i + MENU_ITEMS_ITEM_VALUE]; |
| 1676 | /* The EMACS_INT cast avoids a warning. There's no problem |
| 1677 | as long as pointers have enough bits to hold small integers. */ |
| 1678 | if ((int) (EMACS_INT) client_data == i) |
| 1679 | { |
| 1680 | int j; |
| 1681 | struct input_event buf; |
| 1682 | Lisp_Object frame; |
| 1683 | EVENT_INIT (buf); |
| 1684 | |
| 1685 | XSETFRAME (frame, f); |
| 1686 | buf.kind = MENU_BAR_EVENT; |
| 1687 | buf.frame_or_window = frame; |
| 1688 | buf.arg = frame; |
| 1689 | kbd_buffer_store_event (&buf); |
| 1690 | |
| 1691 | for (j = 0; j < submenu_depth; j++) |
| 1692 | if (!NILP (subprefix_stack[j])) |
| 1693 | { |
| 1694 | buf.kind = MENU_BAR_EVENT; |
| 1695 | buf.frame_or_window = frame; |
| 1696 | buf.arg = subprefix_stack[j]; |
| 1697 | kbd_buffer_store_event (&buf); |
| 1698 | } |
| 1699 | |
| 1700 | if (!NILP (prefix)) |
| 1701 | { |
| 1702 | buf.kind = MENU_BAR_EVENT; |
| 1703 | buf.frame_or_window = frame; |
| 1704 | buf.arg = prefix; |
| 1705 | kbd_buffer_store_event (&buf); |
| 1706 | } |
| 1707 | |
| 1708 | buf.kind = MENU_BAR_EVENT; |
| 1709 | buf.frame_or_window = frame; |
| 1710 | buf.arg = entry; |
| 1711 | kbd_buffer_store_event (&buf); |
| 1712 | |
| 1713 | return; |
| 1714 | } |
| 1715 | i += MENU_ITEMS_ITEM_LENGTH; |
| 1716 | } |
| 1717 | } |
| 1718 | } |
| 1719 | |
| 1720 | |
| 1721 | #ifdef USE_GTK |
| 1722 | /* Gtk calls callbacks just because we tell it what item should be |
| 1723 | selected in a radio group. If this variable is set to a non-zero |
| 1724 | value, we are creating menus and don't want callbacks right now. |
| 1725 | */ |
| 1726 | static int xg_crazy_callback_abort; |
| 1727 | |
| 1728 | /* This callback is called from the menu bar pulldown menu |
| 1729 | when the user makes a selection. |
| 1730 | Figure out what the user chose |
| 1731 | and put the appropriate events into the keyboard buffer. */ |
| 1732 | static void |
| 1733 | menubar_selection_callback (widget, client_data) |
| 1734 | GtkWidget *widget; |
| 1735 | gpointer client_data; |
| 1736 | { |
| 1737 | xg_menu_item_cb_data *cb_data = (xg_menu_item_cb_data*) client_data; |
| 1738 | |
| 1739 | if (xg_crazy_callback_abort) |
| 1740 | return; |
| 1741 | |
| 1742 | if (! cb_data || ! cb_data->cl_data || ! cb_data->cl_data->f) |
| 1743 | return; |
| 1744 | |
| 1745 | /* For a group of radio buttons, GTK calls the selection callback first |
| 1746 | for the item that was active before the selection and then for the one that |
| 1747 | is active after the selection. For C-h k this means we get the help on |
| 1748 | the deselected item and then the selected item is executed. Prevent that |
| 1749 | by ignoring the non-active item. */ |
| 1750 | if (GTK_IS_RADIO_MENU_ITEM (widget) |
| 1751 | && ! gtk_check_menu_item_get_active (GTK_CHECK_MENU_ITEM (widget))) |
| 1752 | return; |
| 1753 | |
| 1754 | /* When a menu is popped down, X generates a focus event (i.e. focus |
| 1755 | goes back to the frame below the menu). Since GTK buffers events, |
| 1756 | we force it out here before the menu selection event. Otherwise |
| 1757 | sit-for will exit at once if the focus event follows the menu selection |
| 1758 | event. */ |
| 1759 | |
| 1760 | BLOCK_INPUT; |
| 1761 | while (gtk_events_pending ()) |
| 1762 | gtk_main_iteration (); |
| 1763 | UNBLOCK_INPUT; |
| 1764 | |
| 1765 | find_and_call_menu_selection (cb_data->cl_data->f, |
| 1766 | cb_data->cl_data->menu_bar_items_used, |
| 1767 | cb_data->cl_data->menu_bar_vector, |
| 1768 | cb_data->call_data); |
| 1769 | } |
| 1770 | |
| 1771 | #else /* not USE_GTK */ |
| 1772 | |
| 1773 | /* This callback is called from the menu bar pulldown menu |
| 1774 | when the user makes a selection. |
| 1775 | Figure out what the user chose |
| 1776 | and put the appropriate events into the keyboard buffer. */ |
| 1777 | static void |
| 1778 | menubar_selection_callback (widget, id, client_data) |
| 1779 | Widget widget; |
| 1780 | LWLIB_ID id; |
| 1781 | XtPointer client_data; |
| 1782 | { |
| 1783 | FRAME_PTR f; |
| 1784 | |
| 1785 | f = menubar_id_to_frame (id); |
| 1786 | if (!f) |
| 1787 | return; |
| 1788 | find_and_call_menu_selection (f, f->menu_bar_items_used, |
| 1789 | f->menu_bar_vector, client_data); |
| 1790 | } |
| 1791 | #endif /* not USE_GTK */ |
| 1792 | |
| 1793 | /* Allocate a widget_value, blocking input. */ |
| 1794 | |
| 1795 | widget_value * |
| 1796 | xmalloc_widget_value () |
| 1797 | { |
| 1798 | widget_value *value; |
| 1799 | |
| 1800 | BLOCK_INPUT; |
| 1801 | value = malloc_widget_value (); |
| 1802 | UNBLOCK_INPUT; |
| 1803 | |
| 1804 | return value; |
| 1805 | } |
| 1806 | |
| 1807 | /* This recursively calls free_widget_value on the tree of widgets. |
| 1808 | It must free all data that was malloc'ed for these widget_values. |
| 1809 | In Emacs, many slots are pointers into the data of Lisp_Strings, and |
| 1810 | must be left alone. */ |
| 1811 | |
| 1812 | void |
| 1813 | free_menubar_widget_value_tree (wv) |
| 1814 | widget_value *wv; |
| 1815 | { |
| 1816 | if (! wv) return; |
| 1817 | |
| 1818 | wv->name = wv->value = wv->key = (char *) 0xDEADBEEF; |
| 1819 | |
| 1820 | if (wv->contents && (wv->contents != (widget_value*)1)) |
| 1821 | { |
| 1822 | free_menubar_widget_value_tree (wv->contents); |
| 1823 | wv->contents = (widget_value *) 0xDEADBEEF; |
| 1824 | } |
| 1825 | if (wv->next) |
| 1826 | { |
| 1827 | free_menubar_widget_value_tree (wv->next); |
| 1828 | wv->next = (widget_value *) 0xDEADBEEF; |
| 1829 | } |
| 1830 | BLOCK_INPUT; |
| 1831 | free_widget_value (wv); |
| 1832 | UNBLOCK_INPUT; |
| 1833 | } |
| 1834 | \f |
| 1835 | /* Set up data in menu_items for a menu bar item |
| 1836 | whose event type is ITEM_KEY (with string ITEM_NAME) |
| 1837 | and whose contents come from the list of keymaps MAPS. */ |
| 1838 | |
| 1839 | static int |
| 1840 | parse_single_submenu (item_key, item_name, maps) |
| 1841 | Lisp_Object item_key, item_name, maps; |
| 1842 | { |
| 1843 | Lisp_Object length; |
| 1844 | int len; |
| 1845 | Lisp_Object *mapvec; |
| 1846 | int i; |
| 1847 | int top_level_items = 0; |
| 1848 | |
| 1849 | length = Flength (maps); |
| 1850 | len = XINT (length); |
| 1851 | |
| 1852 | /* Convert the list MAPS into a vector MAPVEC. */ |
| 1853 | mapvec = (Lisp_Object *) alloca (len * sizeof (Lisp_Object)); |
| 1854 | for (i = 0; i < len; i++) |
| 1855 | { |
| 1856 | mapvec[i] = Fcar (maps); |
| 1857 | maps = Fcdr (maps); |
| 1858 | } |
| 1859 | |
| 1860 | /* Loop over the given keymaps, making a pane for each map. |
| 1861 | But don't make a pane that is empty--ignore that map instead. */ |
| 1862 | for (i = 0; i < len; i++) |
| 1863 | { |
| 1864 | if (!KEYMAPP (mapvec[i])) |
| 1865 | { |
| 1866 | /* Here we have a command at top level in the menu bar |
| 1867 | as opposed to a submenu. */ |
| 1868 | top_level_items = 1; |
| 1869 | push_menu_pane (Qnil, Qnil); |
| 1870 | push_menu_item (item_name, Qt, item_key, mapvec[i], |
| 1871 | Qnil, Qnil, Qnil, Qnil); |
| 1872 | } |
| 1873 | else |
| 1874 | { |
| 1875 | Lisp_Object prompt; |
| 1876 | prompt = Fkeymap_prompt (mapvec[i]); |
| 1877 | single_keymap_panes (mapvec[i], |
| 1878 | !NILP (prompt) ? prompt : item_name, |
| 1879 | item_key, 0, 10); |
| 1880 | } |
| 1881 | } |
| 1882 | |
| 1883 | return top_level_items; |
| 1884 | } |
| 1885 | |
| 1886 | /* Create a tree of widget_value objects |
| 1887 | representing the panes and items |
| 1888 | in menu_items starting at index START, up to index END. */ |
| 1889 | |
| 1890 | static widget_value * |
| 1891 | digest_single_submenu (start, end, top_level_items) |
| 1892 | int start, end, top_level_items; |
| 1893 | { |
| 1894 | widget_value *wv, *prev_wv, *save_wv, *first_wv; |
| 1895 | int i; |
| 1896 | int submenu_depth = 0; |
| 1897 | widget_value **submenu_stack; |
| 1898 | int panes_seen = 0; |
| 1899 | |
| 1900 | submenu_stack |
| 1901 | = (widget_value **) alloca (menu_items_used * sizeof (widget_value *)); |
| 1902 | wv = xmalloc_widget_value (); |
| 1903 | wv->name = "menu"; |
| 1904 | wv->value = 0; |
| 1905 | wv->enabled = 1; |
| 1906 | wv->button_type = BUTTON_TYPE_NONE; |
| 1907 | wv->help = Qnil; |
| 1908 | first_wv = wv; |
| 1909 | save_wv = 0; |
| 1910 | prev_wv = 0; |
| 1911 | |
| 1912 | /* Loop over all panes and items made by the preceding call |
| 1913 | to parse_single_submenu and construct a tree of widget_value objects. |
| 1914 | Ignore the panes and items used by previous calls to |
| 1915 | digest_single_submenu, even though those are also in menu_items. */ |
| 1916 | i = start; |
| 1917 | while (i < end) |
| 1918 | { |
| 1919 | if (EQ (XVECTOR (menu_items)->contents[i], Qnil)) |
| 1920 | { |
| 1921 | submenu_stack[submenu_depth++] = save_wv; |
| 1922 | save_wv = prev_wv; |
| 1923 | prev_wv = 0; |
| 1924 | i++; |
| 1925 | } |
| 1926 | else if (EQ (XVECTOR (menu_items)->contents[i], Qlambda)) |
| 1927 | { |
| 1928 | prev_wv = save_wv; |
| 1929 | save_wv = submenu_stack[--submenu_depth]; |
| 1930 | i++; |
| 1931 | } |
| 1932 | else if (EQ (XVECTOR (menu_items)->contents[i], Qt) |
| 1933 | && submenu_depth != 0) |
| 1934 | i += MENU_ITEMS_PANE_LENGTH; |
| 1935 | /* Ignore a nil in the item list. |
| 1936 | It's meaningful only for dialog boxes. */ |
| 1937 | else if (EQ (XVECTOR (menu_items)->contents[i], Qquote)) |
| 1938 | i += 1; |
| 1939 | else if (EQ (XVECTOR (menu_items)->contents[i], Qt)) |
| 1940 | { |
| 1941 | /* Create a new pane. */ |
| 1942 | Lisp_Object pane_name, prefix; |
| 1943 | char *pane_string; |
| 1944 | |
| 1945 | panes_seen++; |
| 1946 | |
| 1947 | pane_name = XVECTOR (menu_items)->contents[i + MENU_ITEMS_PANE_NAME]; |
| 1948 | prefix = XVECTOR (menu_items)->contents[i + MENU_ITEMS_PANE_PREFIX]; |
| 1949 | |
| 1950 | #ifndef HAVE_MULTILINGUAL_MENU |
| 1951 | if (STRINGP (pane_name) && STRING_MULTIBYTE (pane_name)) |
| 1952 | { |
| 1953 | pane_name = ENCODE_MENU_STRING (pane_name); |
| 1954 | AREF (menu_items, i + MENU_ITEMS_PANE_NAME) = pane_name; |
| 1955 | } |
| 1956 | #endif |
| 1957 | pane_string = (NILP (pane_name) |
| 1958 | ? "" : (char *) SDATA (pane_name)); |
| 1959 | /* If there is just one top-level pane, put all its items directly |
| 1960 | under the top-level menu. */ |
| 1961 | if (menu_items_n_panes == 1) |
| 1962 | pane_string = ""; |
| 1963 | |
| 1964 | /* If the pane has a meaningful name, |
| 1965 | make the pane a top-level menu item |
| 1966 | with its items as a submenu beneath it. */ |
| 1967 | if (strcmp (pane_string, "")) |
| 1968 | { |
| 1969 | wv = xmalloc_widget_value (); |
| 1970 | if (save_wv) |
| 1971 | save_wv->next = wv; |
| 1972 | else |
| 1973 | first_wv->contents = wv; |
| 1974 | wv->lname = pane_name; |
| 1975 | /* Set value to 1 so update_submenu_strings can handle '@' */ |
| 1976 | wv->value = (char *)1; |
| 1977 | wv->enabled = 1; |
| 1978 | wv->button_type = BUTTON_TYPE_NONE; |
| 1979 | wv->help = Qnil; |
| 1980 | save_wv = wv; |
| 1981 | } |
| 1982 | else |
| 1983 | save_wv = first_wv; |
| 1984 | |
| 1985 | prev_wv = 0; |
| 1986 | i += MENU_ITEMS_PANE_LENGTH; |
| 1987 | } |
| 1988 | else |
| 1989 | { |
| 1990 | /* Create a new item within current pane. */ |
| 1991 | Lisp_Object item_name, enable, descrip, def, type, selected; |
| 1992 | Lisp_Object help; |
| 1993 | |
| 1994 | /* All items should be contained in panes. */ |
| 1995 | if (panes_seen == 0) |
| 1996 | abort (); |
| 1997 | |
| 1998 | item_name = AREF (menu_items, i + MENU_ITEMS_ITEM_NAME); |
| 1999 | enable = AREF (menu_items, i + MENU_ITEMS_ITEM_ENABLE); |
| 2000 | descrip = AREF (menu_items, i + MENU_ITEMS_ITEM_EQUIV_KEY); |
| 2001 | def = AREF (menu_items, i + MENU_ITEMS_ITEM_DEFINITION); |
| 2002 | type = AREF (menu_items, i + MENU_ITEMS_ITEM_TYPE); |
| 2003 | selected = AREF (menu_items, i + MENU_ITEMS_ITEM_SELECTED); |
| 2004 | help = AREF (menu_items, i + MENU_ITEMS_ITEM_HELP); |
| 2005 | |
| 2006 | #ifndef HAVE_MULTILINGUAL_MENU |
| 2007 | if (STRING_MULTIBYTE (item_name)) |
| 2008 | { |
| 2009 | item_name = ENCODE_MENU_STRING (item_name); |
| 2010 | AREF (menu_items, i + MENU_ITEMS_ITEM_NAME) = item_name; |
| 2011 | } |
| 2012 | |
| 2013 | if (STRINGP (descrip) && STRING_MULTIBYTE (descrip)) |
| 2014 | { |
| 2015 | descrip = ENCODE_MENU_STRING (descrip); |
| 2016 | AREF (menu_items, i + MENU_ITEMS_ITEM_EQUIV_KEY) = descrip; |
| 2017 | } |
| 2018 | #endif /* not HAVE_MULTILINGUAL_MENU */ |
| 2019 | |
| 2020 | wv = xmalloc_widget_value (); |
| 2021 | if (prev_wv) |
| 2022 | prev_wv->next = wv; |
| 2023 | else |
| 2024 | save_wv->contents = wv; |
| 2025 | |
| 2026 | wv->lname = item_name; |
| 2027 | if (!NILP (descrip)) |
| 2028 | wv->lkey = descrip; |
| 2029 | wv->value = 0; |
| 2030 | /* The EMACS_INT cast avoids a warning. There's no problem |
| 2031 | as long as pointers have enough bits to hold small integers. */ |
| 2032 | wv->call_data = (!NILP (def) ? (void *) (EMACS_INT) i : 0); |
| 2033 | wv->enabled = !NILP (enable); |
| 2034 | |
| 2035 | if (NILP (type)) |
| 2036 | wv->button_type = BUTTON_TYPE_NONE; |
| 2037 | else if (EQ (type, QCradio)) |
| 2038 | wv->button_type = BUTTON_TYPE_RADIO; |
| 2039 | else if (EQ (type, QCtoggle)) |
| 2040 | wv->button_type = BUTTON_TYPE_TOGGLE; |
| 2041 | else |
| 2042 | abort (); |
| 2043 | |
| 2044 | wv->selected = !NILP (selected); |
| 2045 | if (! STRINGP (help)) |
| 2046 | help = Qnil; |
| 2047 | |
| 2048 | wv->help = help; |
| 2049 | |
| 2050 | prev_wv = wv; |
| 2051 | |
| 2052 | i += MENU_ITEMS_ITEM_LENGTH; |
| 2053 | } |
| 2054 | } |
| 2055 | |
| 2056 | /* If we have just one "menu item" |
| 2057 | that was originally a button, return it by itself. */ |
| 2058 | if (top_level_items && first_wv->contents && first_wv->contents->next == 0) |
| 2059 | { |
| 2060 | wv = first_wv->contents; |
| 2061 | free_widget_value (first_wv); |
| 2062 | return wv; |
| 2063 | } |
| 2064 | |
| 2065 | return first_wv; |
| 2066 | } |
| 2067 | |
| 2068 | /* Walk through the widget_value tree starting at FIRST_WV and update |
| 2069 | the char * pointers from the corresponding lisp values. |
| 2070 | We do this after building the whole tree, since GC may happen while the |
| 2071 | tree is constructed, and small strings are relocated. So we must wait |
| 2072 | until no GC can happen before storing pointers into lisp values. */ |
| 2073 | static void |
| 2074 | update_submenu_strings (first_wv) |
| 2075 | widget_value *first_wv; |
| 2076 | { |
| 2077 | widget_value *wv; |
| 2078 | |
| 2079 | for (wv = first_wv; wv; wv = wv->next) |
| 2080 | { |
| 2081 | if (STRINGP (wv->lname)) |
| 2082 | { |
| 2083 | wv->name = (char *) SDATA (wv->lname); |
| 2084 | |
| 2085 | /* Ignore the @ that means "separate pane". |
| 2086 | This is a kludge, but this isn't worth more time. */ |
| 2087 | if (wv->value == (char *)1) |
| 2088 | { |
| 2089 | if (wv->name[0] == '@') |
| 2090 | wv->name++; |
| 2091 | wv->value = 0; |
| 2092 | } |
| 2093 | } |
| 2094 | |
| 2095 | if (STRINGP (wv->lkey)) |
| 2096 | wv->key = (char *) SDATA (wv->lkey); |
| 2097 | |
| 2098 | if (wv->contents) |
| 2099 | update_submenu_strings (wv->contents); |
| 2100 | } |
| 2101 | } |
| 2102 | |
| 2103 | \f |
| 2104 | /* Recompute all the widgets of frame F, when the menu bar has been |
| 2105 | changed. Value is non-zero if widgets were updated. */ |
| 2106 | |
| 2107 | static int |
| 2108 | update_frame_menubar (f) |
| 2109 | FRAME_PTR f; |
| 2110 | { |
| 2111 | #ifdef USE_GTK |
| 2112 | return xg_update_frame_menubar (f); |
| 2113 | #else |
| 2114 | struct x_output *x = f->output_data.x; |
| 2115 | int columns, rows; |
| 2116 | |
| 2117 | if (!x->menubar_widget || XtIsManaged (x->menubar_widget)) |
| 2118 | return 0; |
| 2119 | |
| 2120 | BLOCK_INPUT; |
| 2121 | /* Save the size of the frame because the pane widget doesn't accept |
| 2122 | to resize itself. So force it. */ |
| 2123 | columns = FRAME_COLS (f); |
| 2124 | rows = FRAME_LINES (f); |
| 2125 | |
| 2126 | /* Do the voodoo which means "I'm changing lots of things, don't try |
| 2127 | to refigure sizes until I'm done." */ |
| 2128 | lw_refigure_widget (x->column_widget, False); |
| 2129 | |
| 2130 | /* The order in which children are managed is the top to bottom |
| 2131 | order in which they are displayed in the paned window. First, |
| 2132 | remove the text-area widget. */ |
| 2133 | XtUnmanageChild (x->edit_widget); |
| 2134 | |
| 2135 | /* Remove the menubar that is there now, and put up the menubar that |
| 2136 | should be there. */ |
| 2137 | XtManageChild (x->menubar_widget); |
| 2138 | XtMapWidget (x->menubar_widget); |
| 2139 | XtVaSetValues (x->menubar_widget, XtNmappedWhenManaged, 1, NULL); |
| 2140 | |
| 2141 | /* Re-manage the text-area widget, and then thrash the sizes. */ |
| 2142 | XtManageChild (x->edit_widget); |
| 2143 | lw_refigure_widget (x->column_widget, True); |
| 2144 | |
| 2145 | /* Force the pane widget to resize itself with the right values. */ |
| 2146 | EmacsFrameSetCharSize (x->edit_widget, columns, rows); |
| 2147 | UNBLOCK_INPUT; |
| 2148 | #endif |
| 2149 | return 1; |
| 2150 | } |
| 2151 | |
| 2152 | /* Set the contents of the menubar widgets of frame F. |
| 2153 | The argument FIRST_TIME is currently ignored; |
| 2154 | it is set the first time this is called, from initialize_frame_menubar. */ |
| 2155 | |
| 2156 | void |
| 2157 | set_frame_menubar (f, first_time, deep_p) |
| 2158 | FRAME_PTR f; |
| 2159 | int first_time; |
| 2160 | int deep_p; |
| 2161 | { |
| 2162 | xt_or_gtk_widget menubar_widget = f->output_data.x->menubar_widget; |
| 2163 | #ifdef USE_X_TOOLKIT |
| 2164 | LWLIB_ID id; |
| 2165 | #endif |
| 2166 | Lisp_Object items; |
| 2167 | widget_value *wv, *first_wv, *prev_wv = 0; |
| 2168 | int i, last_i = 0; |
| 2169 | int *submenu_start, *submenu_end; |
| 2170 | int *submenu_top_level_items, *submenu_n_panes; |
| 2171 | |
| 2172 | |
| 2173 | XSETFRAME (Vmenu_updating_frame, f); |
| 2174 | |
| 2175 | #ifdef USE_X_TOOLKIT |
| 2176 | if (f->output_data.x->id == 0) |
| 2177 | f->output_data.x->id = next_menubar_widget_id++; |
| 2178 | id = f->output_data.x->id; |
| 2179 | #endif |
| 2180 | |
| 2181 | if (! menubar_widget) |
| 2182 | deep_p = 1; |
| 2183 | else if (pending_menu_activation && !deep_p) |
| 2184 | deep_p = 1; |
| 2185 | /* Make the first call for any given frame always go deep. */ |
| 2186 | else if (!f->output_data.x->saved_menu_event && !deep_p) |
| 2187 | { |
| 2188 | deep_p = 1; |
| 2189 | f->output_data.x->saved_menu_event = (XEvent*)xmalloc (sizeof (XEvent)); |
| 2190 | f->output_data.x->saved_menu_event->type = 0; |
| 2191 | } |
| 2192 | |
| 2193 | #ifdef USE_GTK |
| 2194 | /* If we have detached menus, we must update deep so detached menus |
| 2195 | also gets updated. */ |
| 2196 | deep_p = deep_p || xg_have_tear_offs (); |
| 2197 | #endif |
| 2198 | |
| 2199 | if (deep_p) |
| 2200 | { |
| 2201 | /* Make a widget-value tree representing the entire menu trees. */ |
| 2202 | |
| 2203 | struct buffer *prev = current_buffer; |
| 2204 | Lisp_Object buffer; |
| 2205 | int specpdl_count = SPECPDL_INDEX (); |
| 2206 | int previous_menu_items_used = f->menu_bar_items_used; |
| 2207 | Lisp_Object *previous_items |
| 2208 | = (Lisp_Object *) alloca (previous_menu_items_used |
| 2209 | * sizeof (Lisp_Object)); |
| 2210 | |
| 2211 | /* If we are making a new widget, its contents are empty, |
| 2212 | do always reinitialize them. */ |
| 2213 | if (! menubar_widget) |
| 2214 | previous_menu_items_used = 0; |
| 2215 | |
| 2216 | buffer = XWINDOW (FRAME_SELECTED_WINDOW (f))->buffer; |
| 2217 | specbind (Qinhibit_quit, Qt); |
| 2218 | /* Don't let the debugger step into this code |
| 2219 | because it is not reentrant. */ |
| 2220 | specbind (Qdebug_on_next_call, Qnil); |
| 2221 | |
| 2222 | record_unwind_save_match_data (); |
| 2223 | if (NILP (Voverriding_local_map_menu_flag)) |
| 2224 | { |
| 2225 | specbind (Qoverriding_terminal_local_map, Qnil); |
| 2226 | specbind (Qoverriding_local_map, Qnil); |
| 2227 | } |
| 2228 | |
| 2229 | set_buffer_internal_1 (XBUFFER (buffer)); |
| 2230 | |
| 2231 | /* Run the Lucid hook. */ |
| 2232 | safe_run_hooks (Qactivate_menubar_hook); |
| 2233 | |
| 2234 | /* If it has changed current-menubar from previous value, |
| 2235 | really recompute the menubar from the value. */ |
| 2236 | if (! NILP (Vlucid_menu_bar_dirty_flag)) |
| 2237 | call0 (Qrecompute_lucid_menubar); |
| 2238 | safe_run_hooks (Qmenu_bar_update_hook); |
| 2239 | FRAME_MENU_BAR_ITEMS (f) = menu_bar_items (FRAME_MENU_BAR_ITEMS (f)); |
| 2240 | |
| 2241 | items = FRAME_MENU_BAR_ITEMS (f); |
| 2242 | |
| 2243 | /* Save the frame's previous menu bar contents data. */ |
| 2244 | if (previous_menu_items_used) |
| 2245 | bcopy (XVECTOR (f->menu_bar_vector)->contents, previous_items, |
| 2246 | previous_menu_items_used * sizeof (Lisp_Object)); |
| 2247 | |
| 2248 | /* Fill in menu_items with the current menu bar contents. |
| 2249 | This can evaluate Lisp code. */ |
| 2250 | save_menu_items (); |
| 2251 | |
| 2252 | menu_items = f->menu_bar_vector; |
| 2253 | menu_items_allocated = VECTORP (menu_items) ? ASIZE (menu_items) : 0; |
| 2254 | submenu_start = (int *) alloca (XVECTOR (items)->size * sizeof (int *)); |
| 2255 | submenu_end = (int *) alloca (XVECTOR (items)->size * sizeof (int *)); |
| 2256 | submenu_n_panes = (int *) alloca (XVECTOR (items)->size * sizeof (int)); |
| 2257 | submenu_top_level_items |
| 2258 | = (int *) alloca (XVECTOR (items)->size * sizeof (int *)); |
| 2259 | init_menu_items (); |
| 2260 | for (i = 0; i < XVECTOR (items)->size; i += 4) |
| 2261 | { |
| 2262 | Lisp_Object key, string, maps; |
| 2263 | |
| 2264 | last_i = i; |
| 2265 | |
| 2266 | key = XVECTOR (items)->contents[i]; |
| 2267 | string = XVECTOR (items)->contents[i + 1]; |
| 2268 | maps = XVECTOR (items)->contents[i + 2]; |
| 2269 | if (NILP (string)) |
| 2270 | break; |
| 2271 | |
| 2272 | submenu_start[i] = menu_items_used; |
| 2273 | |
| 2274 | menu_items_n_panes = 0; |
| 2275 | submenu_top_level_items[i] |
| 2276 | = parse_single_submenu (key, string, maps); |
| 2277 | submenu_n_panes[i] = menu_items_n_panes; |
| 2278 | |
| 2279 | submenu_end[i] = menu_items_used; |
| 2280 | } |
| 2281 | |
| 2282 | finish_menu_items (); |
| 2283 | |
| 2284 | /* Convert menu_items into widget_value trees |
| 2285 | to display the menu. This cannot evaluate Lisp code. */ |
| 2286 | |
| 2287 | wv = xmalloc_widget_value (); |
| 2288 | wv->name = "menubar"; |
| 2289 | wv->value = 0; |
| 2290 | wv->enabled = 1; |
| 2291 | wv->button_type = BUTTON_TYPE_NONE; |
| 2292 | wv->help = Qnil; |
| 2293 | first_wv = wv; |
| 2294 | |
| 2295 | for (i = 0; i < last_i; i += 4) |
| 2296 | { |
| 2297 | menu_items_n_panes = submenu_n_panes[i]; |
| 2298 | wv = digest_single_submenu (submenu_start[i], submenu_end[i], |
| 2299 | submenu_top_level_items[i]); |
| 2300 | if (prev_wv) |
| 2301 | prev_wv->next = wv; |
| 2302 | else |
| 2303 | first_wv->contents = wv; |
| 2304 | /* Don't set wv->name here; GC during the loop might relocate it. */ |
| 2305 | wv->enabled = 1; |
| 2306 | wv->button_type = BUTTON_TYPE_NONE; |
| 2307 | prev_wv = wv; |
| 2308 | } |
| 2309 | |
| 2310 | set_buffer_internal_1 (prev); |
| 2311 | |
| 2312 | /* If there has been no change in the Lisp-level contents |
| 2313 | of the menu bar, skip redisplaying it. Just exit. */ |
| 2314 | |
| 2315 | /* Compare the new menu items with the ones computed last time. */ |
| 2316 | for (i = 0; i < previous_menu_items_used; i++) |
| 2317 | if (menu_items_used == i |
| 2318 | || (!EQ (previous_items[i], XVECTOR (menu_items)->contents[i]))) |
| 2319 | break; |
| 2320 | if (i == menu_items_used && i == previous_menu_items_used && i != 0) |
| 2321 | { |
| 2322 | /* The menu items have not changed. Don't bother updating |
| 2323 | the menus in any form, since it would be a no-op. */ |
| 2324 | free_menubar_widget_value_tree (first_wv); |
| 2325 | discard_menu_items (); |
| 2326 | unbind_to (specpdl_count, Qnil); |
| 2327 | return; |
| 2328 | } |
| 2329 | |
| 2330 | /* The menu items are different, so store them in the frame. */ |
| 2331 | f->menu_bar_vector = menu_items; |
| 2332 | f->menu_bar_items_used = menu_items_used; |
| 2333 | |
| 2334 | /* This calls restore_menu_items to restore menu_items, etc., |
| 2335 | as they were outside. */ |
| 2336 | unbind_to (specpdl_count, Qnil); |
| 2337 | |
| 2338 | /* Now GC cannot happen during the lifetime of the widget_value, |
| 2339 | so it's safe to store data from a Lisp_String. */ |
| 2340 | wv = first_wv->contents; |
| 2341 | for (i = 0; i < XVECTOR (items)->size; i += 4) |
| 2342 | { |
| 2343 | Lisp_Object string; |
| 2344 | string = XVECTOR (items)->contents[i + 1]; |
| 2345 | if (NILP (string)) |
| 2346 | break; |
| 2347 | wv->name = (char *) SDATA (string); |
| 2348 | update_submenu_strings (wv->contents); |
| 2349 | wv = wv->next; |
| 2350 | } |
| 2351 | |
| 2352 | } |
| 2353 | else |
| 2354 | { |
| 2355 | /* Make a widget-value tree containing |
| 2356 | just the top level menu bar strings. */ |
| 2357 | |
| 2358 | wv = xmalloc_widget_value (); |
| 2359 | wv->name = "menubar"; |
| 2360 | wv->value = 0; |
| 2361 | wv->enabled = 1; |
| 2362 | wv->button_type = BUTTON_TYPE_NONE; |
| 2363 | wv->help = Qnil; |
| 2364 | first_wv = wv; |
| 2365 | |
| 2366 | items = FRAME_MENU_BAR_ITEMS (f); |
| 2367 | for (i = 0; i < XVECTOR (items)->size; i += 4) |
| 2368 | { |
| 2369 | Lisp_Object string; |
| 2370 | |
| 2371 | string = XVECTOR (items)->contents[i + 1]; |
| 2372 | if (NILP (string)) |
| 2373 | break; |
| 2374 | |
| 2375 | wv = xmalloc_widget_value (); |
| 2376 | wv->name = (char *) SDATA (string); |
| 2377 | wv->value = 0; |
| 2378 | wv->enabled = 1; |
| 2379 | wv->button_type = BUTTON_TYPE_NONE; |
| 2380 | wv->help = Qnil; |
| 2381 | /* This prevents lwlib from assuming this |
| 2382 | menu item is really supposed to be empty. */ |
| 2383 | /* The EMACS_INT cast avoids a warning. |
| 2384 | This value just has to be different from small integers. */ |
| 2385 | wv->call_data = (void *) (EMACS_INT) (-1); |
| 2386 | |
| 2387 | if (prev_wv) |
| 2388 | prev_wv->next = wv; |
| 2389 | else |
| 2390 | first_wv->contents = wv; |
| 2391 | prev_wv = wv; |
| 2392 | } |
| 2393 | |
| 2394 | /* Forget what we thought we knew about what is in the |
| 2395 | detailed contents of the menu bar menus. |
| 2396 | Changing the top level always destroys the contents. */ |
| 2397 | f->menu_bar_items_used = 0; |
| 2398 | } |
| 2399 | |
| 2400 | /* Create or update the menu bar widget. */ |
| 2401 | |
| 2402 | BLOCK_INPUT; |
| 2403 | |
| 2404 | #ifdef USE_GTK |
| 2405 | xg_crazy_callback_abort = 1; |
| 2406 | if (menubar_widget) |
| 2407 | { |
| 2408 | /* The fourth arg is DEEP_P, which says to consider the entire |
| 2409 | menu trees we supply, rather than just the menu bar item names. */ |
| 2410 | xg_modify_menubar_widgets (menubar_widget, |
| 2411 | f, |
| 2412 | first_wv, |
| 2413 | deep_p, |
| 2414 | G_CALLBACK (menubar_selection_callback), |
| 2415 | G_CALLBACK (popup_deactivate_callback), |
| 2416 | G_CALLBACK (menu_highlight_callback)); |
| 2417 | } |
| 2418 | else |
| 2419 | { |
| 2420 | GtkWidget *wvbox = f->output_data.x->vbox_widget; |
| 2421 | |
| 2422 | menubar_widget |
| 2423 | = xg_create_widget ("menubar", "menubar", f, first_wv, |
| 2424 | G_CALLBACK (menubar_selection_callback), |
| 2425 | G_CALLBACK (popup_deactivate_callback), |
| 2426 | G_CALLBACK (menu_highlight_callback)); |
| 2427 | |
| 2428 | f->output_data.x->menubar_widget = menubar_widget; |
| 2429 | } |
| 2430 | |
| 2431 | |
| 2432 | #else /* not USE_GTK */ |
| 2433 | if (menubar_widget) |
| 2434 | { |
| 2435 | /* Disable resizing (done for Motif!) */ |
| 2436 | lw_allow_resizing (f->output_data.x->widget, False); |
| 2437 | |
| 2438 | /* The third arg is DEEP_P, which says to consider the entire |
| 2439 | menu trees we supply, rather than just the menu bar item names. */ |
| 2440 | lw_modify_all_widgets (id, first_wv, deep_p); |
| 2441 | |
| 2442 | /* Re-enable the edit widget to resize. */ |
| 2443 | lw_allow_resizing (f->output_data.x->widget, True); |
| 2444 | } |
| 2445 | else |
| 2446 | { |
| 2447 | char menuOverride[] = "Ctrl<KeyPress>g: MenuGadgetEscape()"; |
| 2448 | XtTranslations override = XtParseTranslationTable (menuOverride); |
| 2449 | |
| 2450 | menubar_widget = lw_create_widget ("menubar", "menubar", id, first_wv, |
| 2451 | f->output_data.x->column_widget, |
| 2452 | 0, |
| 2453 | popup_activate_callback, |
| 2454 | menubar_selection_callback, |
| 2455 | popup_deactivate_callback, |
| 2456 | menu_highlight_callback); |
| 2457 | f->output_data.x->menubar_widget = menubar_widget; |
| 2458 | |
| 2459 | /* Make menu pop down on C-g. */ |
| 2460 | XtOverrideTranslations (menubar_widget, override); |
| 2461 | } |
| 2462 | |
| 2463 | { |
| 2464 | int menubar_size |
| 2465 | = (f->output_data.x->menubar_widget |
| 2466 | ? (f->output_data.x->menubar_widget->core.height |
| 2467 | + f->output_data.x->menubar_widget->core.border_width) |
| 2468 | : 0); |
| 2469 | |
| 2470 | #if 0 /* Experimentally, we now get the right results |
| 2471 | for -geometry -0-0 without this. 24 Aug 96, rms. */ |
| 2472 | #ifdef USE_LUCID |
| 2473 | if (FRAME_EXTERNAL_MENU_BAR (f)) |
| 2474 | { |
| 2475 | Dimension ibw = 0; |
| 2476 | XtVaGetValues (f->output_data.x->column_widget, |
| 2477 | XtNinternalBorderWidth, &ibw, NULL); |
| 2478 | menubar_size += ibw; |
| 2479 | } |
| 2480 | #endif /* USE_LUCID */ |
| 2481 | #endif /* 0 */ |
| 2482 | |
| 2483 | f->output_data.x->menubar_height = menubar_size; |
| 2484 | } |
| 2485 | #endif /* not USE_GTK */ |
| 2486 | |
| 2487 | free_menubar_widget_value_tree (first_wv); |
| 2488 | update_frame_menubar (f); |
| 2489 | |
| 2490 | #ifdef USE_GTK |
| 2491 | xg_crazy_callback_abort = 0; |
| 2492 | #endif |
| 2493 | |
| 2494 | UNBLOCK_INPUT; |
| 2495 | } |
| 2496 | |
| 2497 | /* Called from Fx_create_frame to create the initial menubar of a frame |
| 2498 | before it is mapped, so that the window is mapped with the menubar already |
| 2499 | there instead of us tacking it on later and thrashing the window after it |
| 2500 | is visible. */ |
| 2501 | |
| 2502 | void |
| 2503 | initialize_frame_menubar (f) |
| 2504 | FRAME_PTR f; |
| 2505 | { |
| 2506 | /* This function is called before the first chance to redisplay |
| 2507 | the frame. It has to be, so the frame will have the right size. */ |
| 2508 | FRAME_MENU_BAR_ITEMS (f) = menu_bar_items (FRAME_MENU_BAR_ITEMS (f)); |
| 2509 | set_frame_menubar (f, 1, 1); |
| 2510 | } |
| 2511 | |
| 2512 | |
| 2513 | /* Get rid of the menu bar of frame F, and free its storage. |
| 2514 | This is used when deleting a frame, and when turning off the menu bar. |
| 2515 | For GTK this function is in gtkutil.c. */ |
| 2516 | |
| 2517 | #ifndef USE_GTK |
| 2518 | void |
| 2519 | free_frame_menubar (f) |
| 2520 | FRAME_PTR f; |
| 2521 | { |
| 2522 | Widget menubar_widget; |
| 2523 | |
| 2524 | menubar_widget = f->output_data.x->menubar_widget; |
| 2525 | |
| 2526 | f->output_data.x->menubar_height = 0; |
| 2527 | |
| 2528 | if (menubar_widget) |
| 2529 | { |
| 2530 | #ifdef USE_MOTIF |
| 2531 | /* Removing the menu bar magically changes the shell widget's x |
| 2532 | and y position of (0, 0) which, when the menu bar is turned |
| 2533 | on again, leads to pull-down menuss appearing in strange |
| 2534 | positions near the upper-left corner of the display. This |
| 2535 | happens only with some window managers like twm and ctwm, |
| 2536 | but not with other like Motif's mwm or kwm, because the |
| 2537 | latter generate ConfigureNotify events when the menu bar |
| 2538 | is switched off, which fixes the shell position. */ |
| 2539 | Position x0, y0, x1, y1; |
| 2540 | #endif |
| 2541 | |
| 2542 | BLOCK_INPUT; |
| 2543 | |
| 2544 | #ifdef USE_MOTIF |
| 2545 | if (f->output_data.x->widget) |
| 2546 | XtVaGetValues (f->output_data.x->widget, XtNx, &x0, XtNy, &y0, NULL); |
| 2547 | #endif |
| 2548 | |
| 2549 | lw_destroy_all_widgets ((LWLIB_ID) f->output_data.x->id); |
| 2550 | f->output_data.x->menubar_widget = NULL; |
| 2551 | |
| 2552 | #ifdef USE_MOTIF |
| 2553 | if (f->output_data.x->widget) |
| 2554 | { |
| 2555 | XtVaGetValues (f->output_data.x->widget, XtNx, &x1, XtNy, &y1, NULL); |
| 2556 | if (x1 == 0 && y1 == 0) |
| 2557 | XtVaSetValues (f->output_data.x->widget, XtNx, x0, XtNy, y0, NULL); |
| 2558 | } |
| 2559 | #endif |
| 2560 | |
| 2561 | UNBLOCK_INPUT; |
| 2562 | } |
| 2563 | } |
| 2564 | #endif /* not USE_GTK */ |
| 2565 | |
| 2566 | #endif /* USE_X_TOOLKIT || USE_GTK */ |
| 2567 | \f |
| 2568 | /* xmenu_show actually displays a menu using the panes and items in menu_items |
| 2569 | and returns the value selected from it. |
| 2570 | There are two versions of xmenu_show, one for Xt and one for Xlib. |
| 2571 | Both assume input is blocked by the caller. */ |
| 2572 | |
| 2573 | /* F is the frame the menu is for. |
| 2574 | X and Y are the frame-relative specified position, |
| 2575 | relative to the inside upper left corner of the frame F. |
| 2576 | FOR_CLICK is nonzero if this menu was invoked for a mouse click. |
| 2577 | KEYMAPS is 1 if this menu was specified with keymaps; |
| 2578 | in that case, we return a list containing the chosen item's value |
| 2579 | and perhaps also the pane's prefix. |
| 2580 | TITLE is the specified menu title. |
| 2581 | ERROR is a place to store an error message string in case of failure. |
| 2582 | (We return nil on failure, but the value doesn't actually matter.) */ |
| 2583 | |
| 2584 | #if defined (USE_X_TOOLKIT) || defined (USE_GTK) |
| 2585 | |
| 2586 | /* The item selected in the popup menu. */ |
| 2587 | static Lisp_Object *volatile menu_item_selection; |
| 2588 | |
| 2589 | #ifdef USE_GTK |
| 2590 | |
| 2591 | /* Used when position a popup menu. See menu_position_func and |
| 2592 | create_and_show_popup_menu below. */ |
| 2593 | struct next_popup_x_y |
| 2594 | { |
| 2595 | FRAME_PTR f; |
| 2596 | int x; |
| 2597 | int y; |
| 2598 | }; |
| 2599 | |
| 2600 | /* The menu position function to use if we are not putting a popup |
| 2601 | menu where the pointer is. |
| 2602 | MENU is the menu to pop up. |
| 2603 | X and Y shall on exit contain x/y where the menu shall pop up. |
| 2604 | PUSH_IN is not documented in the GTK manual. |
| 2605 | USER_DATA is any data passed in when calling gtk_menu_popup. |
| 2606 | Here it points to a struct next_popup_x_y where the coordinates |
| 2607 | to store in *X and *Y are as well as the frame for the popup. |
| 2608 | |
| 2609 | Here only X and Y are used. */ |
| 2610 | static void |
| 2611 | menu_position_func (menu, x, y, push_in, user_data) |
| 2612 | GtkMenu *menu; |
| 2613 | gint *x; |
| 2614 | gint *y; |
| 2615 | gboolean *push_in; |
| 2616 | gpointer user_data; |
| 2617 | { |
| 2618 | struct next_popup_x_y* data = (struct next_popup_x_y*)user_data; |
| 2619 | GtkRequisition req; |
| 2620 | int disp_width = FRAME_X_DISPLAY_INFO (data->f)->width; |
| 2621 | int disp_height = FRAME_X_DISPLAY_INFO (data->f)->height; |
| 2622 | |
| 2623 | *x = data->x; |
| 2624 | *y = data->y; |
| 2625 | |
| 2626 | /* Check if there is room for the menu. If not, adjust x/y so that |
| 2627 | the menu is fully visible. */ |
| 2628 | gtk_widget_size_request (GTK_WIDGET (menu), &req); |
| 2629 | if (data->x + req.width > disp_width) |
| 2630 | *x -= data->x + req.width - disp_width; |
| 2631 | if (data->y + req.height > disp_height) |
| 2632 | *y -= data->y + req.height - disp_height; |
| 2633 | } |
| 2634 | |
| 2635 | static void |
| 2636 | popup_selection_callback (widget, client_data) |
| 2637 | GtkWidget *widget; |
| 2638 | gpointer client_data; |
| 2639 | { |
| 2640 | xg_menu_item_cb_data *cb_data = (xg_menu_item_cb_data*) client_data; |
| 2641 | |
| 2642 | if (xg_crazy_callback_abort) return; |
| 2643 | if (cb_data) menu_item_selection = (Lisp_Object *) cb_data->call_data; |
| 2644 | } |
| 2645 | |
| 2646 | static Lisp_Object |
| 2647 | pop_down_menu (arg) |
| 2648 | Lisp_Object arg; |
| 2649 | { |
| 2650 | struct Lisp_Save_Value *p = XSAVE_VALUE (arg); |
| 2651 | |
| 2652 | popup_activated_flag = 0; |
| 2653 | BLOCK_INPUT; |
| 2654 | gtk_widget_destroy (GTK_WIDGET (p->pointer)); |
| 2655 | UNBLOCK_INPUT; |
| 2656 | return Qnil; |
| 2657 | } |
| 2658 | |
| 2659 | /* Pop up the menu for frame F defined by FIRST_WV at X/Y and loop until the |
| 2660 | menu pops down. |
| 2661 | menu_item_selection will be set to the selection. */ |
| 2662 | static void |
| 2663 | create_and_show_popup_menu (f, first_wv, x, y, for_click) |
| 2664 | FRAME_PTR f; |
| 2665 | widget_value *first_wv; |
| 2666 | int x; |
| 2667 | int y; |
| 2668 | int for_click; |
| 2669 | { |
| 2670 | int i; |
| 2671 | GtkWidget *menu; |
| 2672 | GtkMenuPositionFunc pos_func = 0; /* Pop up at pointer. */ |
| 2673 | struct next_popup_x_y popup_x_y; |
| 2674 | int specpdl_count = SPECPDL_INDEX (); |
| 2675 | |
| 2676 | xg_crazy_callback_abort = 1; |
| 2677 | menu = xg_create_widget ("popup", first_wv->name, f, first_wv, |
| 2678 | G_CALLBACK (popup_selection_callback), |
| 2679 | G_CALLBACK (popup_deactivate_callback), |
| 2680 | G_CALLBACK (menu_highlight_callback)); |
| 2681 | xg_crazy_callback_abort = 0; |
| 2682 | |
| 2683 | if (! for_click) |
| 2684 | { |
| 2685 | /* Not invoked by a click. pop up at x/y. */ |
| 2686 | pos_func = menu_position_func; |
| 2687 | |
| 2688 | /* Adjust coordinates to be root-window-relative. */ |
| 2689 | x += f->left_pos + FRAME_OUTER_TO_INNER_DIFF_X (f); |
| 2690 | y += f->top_pos + FRAME_OUTER_TO_INNER_DIFF_Y (f); |
| 2691 | |
| 2692 | popup_x_y.x = x; |
| 2693 | popup_x_y.y = y; |
| 2694 | popup_x_y.f = f; |
| 2695 | |
| 2696 | i = 0; /* gtk_menu_popup needs this to be 0 for a non-button popup. */ |
| 2697 | } |
| 2698 | else |
| 2699 | { |
| 2700 | for (i = 0; i < 5; i++) |
| 2701 | if (FRAME_X_DISPLAY_INFO (f)->grabbed & (1 << i)) |
| 2702 | break; |
| 2703 | } |
| 2704 | |
| 2705 | /* Display the menu. */ |
| 2706 | gtk_widget_show_all (menu); |
| 2707 | gtk_menu_popup (GTK_MENU (menu), 0, 0, pos_func, &popup_x_y, i, 0); |
| 2708 | |
| 2709 | record_unwind_protect (pop_down_menu, make_save_value (menu, 0)); |
| 2710 | |
| 2711 | if (GTK_WIDGET_MAPPED (menu)) |
| 2712 | { |
| 2713 | /* Set this to one. popup_widget_loop increases it by one, so it becomes |
| 2714 | two. show_help_echo uses this to detect popup menus. */ |
| 2715 | popup_activated_flag = 1; |
| 2716 | /* Process events that apply to the menu. */ |
| 2717 | popup_widget_loop (1, menu); |
| 2718 | } |
| 2719 | |
| 2720 | unbind_to (specpdl_count, Qnil); |
| 2721 | |
| 2722 | /* Must reset this manually because the button release event is not passed |
| 2723 | to Emacs event loop. */ |
| 2724 | FRAME_X_DISPLAY_INFO (f)->grabbed = 0; |
| 2725 | } |
| 2726 | |
| 2727 | #else /* not USE_GTK */ |
| 2728 | |
| 2729 | /* We need a unique id for each widget handled by the Lucid Widget |
| 2730 | library. |
| 2731 | |
| 2732 | For the main windows, and popup menus, we use this counter, |
| 2733 | which we increment each time after use. This starts from 1<<16. |
| 2734 | |
| 2735 | For menu bars, we use numbers starting at 0, counted in |
| 2736 | next_menubar_widget_id. */ |
| 2737 | LWLIB_ID widget_id_tick; |
| 2738 | |
| 2739 | static void |
| 2740 | popup_selection_callback (widget, id, client_data) |
| 2741 | Widget widget; |
| 2742 | LWLIB_ID id; |
| 2743 | XtPointer client_data; |
| 2744 | { |
| 2745 | menu_item_selection = (Lisp_Object *) client_data; |
| 2746 | } |
| 2747 | |
| 2748 | /* ARG is the LWLIB ID of the dialog box, represented |
| 2749 | as a Lisp object as (HIGHPART . LOWPART). */ |
| 2750 | |
| 2751 | static Lisp_Object |
| 2752 | pop_down_menu (arg) |
| 2753 | Lisp_Object arg; |
| 2754 | { |
| 2755 | LWLIB_ID id = (XINT (XCAR (arg)) << 4 * sizeof (LWLIB_ID) |
| 2756 | | XINT (XCDR (arg))); |
| 2757 | |
| 2758 | BLOCK_INPUT; |
| 2759 | lw_destroy_all_widgets (id); |
| 2760 | UNBLOCK_INPUT; |
| 2761 | popup_activated_flag = 0; |
| 2762 | |
| 2763 | return Qnil; |
| 2764 | } |
| 2765 | |
| 2766 | /* Pop up the menu for frame F defined by FIRST_WV at X/Y and loop until the |
| 2767 | menu pops down. |
| 2768 | menu_item_selection will be set to the selection. */ |
| 2769 | static void |
| 2770 | create_and_show_popup_menu (f, first_wv, x, y, for_click) |
| 2771 | FRAME_PTR f; |
| 2772 | widget_value *first_wv; |
| 2773 | int x; |
| 2774 | int y; |
| 2775 | int for_click; |
| 2776 | { |
| 2777 | int i; |
| 2778 | Arg av[2]; |
| 2779 | int ac = 0; |
| 2780 | XButtonPressedEvent dummy; |
| 2781 | LWLIB_ID menu_id; |
| 2782 | Widget menu; |
| 2783 | |
| 2784 | menu_id = widget_id_tick++; |
| 2785 | menu = lw_create_widget ("popup", first_wv->name, menu_id, first_wv, |
| 2786 | f->output_data.x->widget, 1, 0, |
| 2787 | popup_selection_callback, |
| 2788 | popup_deactivate_callback, |
| 2789 | menu_highlight_callback); |
| 2790 | |
| 2791 | dummy.type = ButtonPress; |
| 2792 | dummy.serial = 0; |
| 2793 | dummy.send_event = 0; |
| 2794 | dummy.display = FRAME_X_DISPLAY (f); |
| 2795 | dummy.time = CurrentTime; |
| 2796 | dummy.root = FRAME_X_DISPLAY_INFO (f)->root_window; |
| 2797 | dummy.window = dummy.root; |
| 2798 | dummy.subwindow = dummy.root; |
| 2799 | dummy.x = x; |
| 2800 | dummy.y = y; |
| 2801 | |
| 2802 | /* Adjust coordinates to be root-window-relative. */ |
| 2803 | x += f->left_pos + FRAME_OUTER_TO_INNER_DIFF_X (f); |
| 2804 | y += f->top_pos + FRAME_OUTER_TO_INNER_DIFF_Y (f); |
| 2805 | |
| 2806 | dummy.x_root = x; |
| 2807 | dummy.y_root = y; |
| 2808 | |
| 2809 | dummy.state = 0; |
| 2810 | dummy.button = 0; |
| 2811 | for (i = 0; i < 5; i++) |
| 2812 | if (FRAME_X_DISPLAY_INFO (f)->grabbed & (1 << i)) |
| 2813 | dummy.button = i; |
| 2814 | |
| 2815 | /* Don't allow any geometry request from the user. */ |
| 2816 | XtSetArg (av[ac], XtNgeometry, 0); ac++; |
| 2817 | XtSetValues (menu, av, ac); |
| 2818 | |
| 2819 | /* Display the menu. */ |
| 2820 | lw_popup_menu (menu, (XEvent *) &dummy); |
| 2821 | popup_activated_flag = 1; |
| 2822 | x_activate_timeout_atimer (); |
| 2823 | |
| 2824 | { |
| 2825 | int fact = 4 * sizeof (LWLIB_ID); |
| 2826 | int specpdl_count = SPECPDL_INDEX (); |
| 2827 | record_unwind_protect (pop_down_menu, |
| 2828 | Fcons (make_number (menu_id >> (fact)), |
| 2829 | make_number (menu_id & ~(-1 << (fact))))); |
| 2830 | |
| 2831 | /* Process events that apply to the menu. */ |
| 2832 | popup_get_selection ((XEvent *) 0, FRAME_X_DISPLAY_INFO (f), menu_id, 1); |
| 2833 | |
| 2834 | unbind_to (specpdl_count, Qnil); |
| 2835 | } |
| 2836 | } |
| 2837 | |
| 2838 | #endif /* not USE_GTK */ |
| 2839 | |
| 2840 | static Lisp_Object |
| 2841 | xmenu_show (f, x, y, for_click, keymaps, title, error) |
| 2842 | FRAME_PTR f; |
| 2843 | int x; |
| 2844 | int y; |
| 2845 | int for_click; |
| 2846 | int keymaps; |
| 2847 | Lisp_Object title; |
| 2848 | char **error; |
| 2849 | { |
| 2850 | int i; |
| 2851 | widget_value *wv, *save_wv = 0, *first_wv = 0, *prev_wv = 0; |
| 2852 | widget_value **submenu_stack |
| 2853 | = (widget_value **) alloca (menu_items_used * sizeof (widget_value *)); |
| 2854 | Lisp_Object *subprefix_stack |
| 2855 | = (Lisp_Object *) alloca (menu_items_used * sizeof (Lisp_Object)); |
| 2856 | int submenu_depth = 0; |
| 2857 | |
| 2858 | int first_pane; |
| 2859 | |
| 2860 | *error = NULL; |
| 2861 | |
| 2862 | if (menu_items_used <= MENU_ITEMS_PANE_LENGTH) |
| 2863 | { |
| 2864 | *error = "Empty menu"; |
| 2865 | return Qnil; |
| 2866 | } |
| 2867 | |
| 2868 | /* Create a tree of widget_value objects |
| 2869 | representing the panes and their items. */ |
| 2870 | wv = xmalloc_widget_value (); |
| 2871 | wv->name = "menu"; |
| 2872 | wv->value = 0; |
| 2873 | wv->enabled = 1; |
| 2874 | wv->button_type = BUTTON_TYPE_NONE; |
| 2875 | wv->help =Qnil; |
| 2876 | first_wv = wv; |
| 2877 | first_pane = 1; |
| 2878 | |
| 2879 | /* Loop over all panes and items, filling in the tree. */ |
| 2880 | i = 0; |
| 2881 | while (i < menu_items_used) |
| 2882 | { |
| 2883 | if (EQ (XVECTOR (menu_items)->contents[i], Qnil)) |
| 2884 | { |
| 2885 | submenu_stack[submenu_depth++] = save_wv; |
| 2886 | save_wv = prev_wv; |
| 2887 | prev_wv = 0; |
| 2888 | first_pane = 1; |
| 2889 | i++; |
| 2890 | } |
| 2891 | else if (EQ (XVECTOR (menu_items)->contents[i], Qlambda)) |
| 2892 | { |
| 2893 | prev_wv = save_wv; |
| 2894 | save_wv = submenu_stack[--submenu_depth]; |
| 2895 | first_pane = 0; |
| 2896 | i++; |
| 2897 | } |
| 2898 | else if (EQ (XVECTOR (menu_items)->contents[i], Qt) |
| 2899 | && submenu_depth != 0) |
| 2900 | i += MENU_ITEMS_PANE_LENGTH; |
| 2901 | /* Ignore a nil in the item list. |
| 2902 | It's meaningful only for dialog boxes. */ |
| 2903 | else if (EQ (XVECTOR (menu_items)->contents[i], Qquote)) |
| 2904 | i += 1; |
| 2905 | else if (EQ (XVECTOR (menu_items)->contents[i], Qt)) |
| 2906 | { |
| 2907 | /* Create a new pane. */ |
| 2908 | Lisp_Object pane_name, prefix; |
| 2909 | char *pane_string; |
| 2910 | |
| 2911 | pane_name = AREF (menu_items, i + MENU_ITEMS_PANE_NAME); |
| 2912 | prefix = AREF (menu_items, i + MENU_ITEMS_PANE_PREFIX); |
| 2913 | |
| 2914 | #ifndef HAVE_MULTILINGUAL_MENU |
| 2915 | if (STRINGP (pane_name) && STRING_MULTIBYTE (pane_name)) |
| 2916 | { |
| 2917 | pane_name = ENCODE_MENU_STRING (pane_name); |
| 2918 | AREF (menu_items, i + MENU_ITEMS_PANE_NAME) = pane_name; |
| 2919 | } |
| 2920 | #endif |
| 2921 | pane_string = (NILP (pane_name) |
| 2922 | ? "" : (char *) SDATA (pane_name)); |
| 2923 | /* If there is just one top-level pane, put all its items directly |
| 2924 | under the top-level menu. */ |
| 2925 | if (menu_items_n_panes == 1) |
| 2926 | pane_string = ""; |
| 2927 | |
| 2928 | /* If the pane has a meaningful name, |
| 2929 | make the pane a top-level menu item |
| 2930 | with its items as a submenu beneath it. */ |
| 2931 | if (!keymaps && strcmp (pane_string, "")) |
| 2932 | { |
| 2933 | wv = xmalloc_widget_value (); |
| 2934 | if (save_wv) |
| 2935 | save_wv->next = wv; |
| 2936 | else |
| 2937 | first_wv->contents = wv; |
| 2938 | wv->name = pane_string; |
| 2939 | if (keymaps && !NILP (prefix)) |
| 2940 | wv->name++; |
| 2941 | wv->value = 0; |
| 2942 | wv->enabled = 1; |
| 2943 | wv->button_type = BUTTON_TYPE_NONE; |
| 2944 | wv->help = Qnil; |
| 2945 | save_wv = wv; |
| 2946 | prev_wv = 0; |
| 2947 | } |
| 2948 | else if (first_pane) |
| 2949 | { |
| 2950 | save_wv = wv; |
| 2951 | prev_wv = 0; |
| 2952 | } |
| 2953 | first_pane = 0; |
| 2954 | i += MENU_ITEMS_PANE_LENGTH; |
| 2955 | } |
| 2956 | else |
| 2957 | { |
| 2958 | /* Create a new item within current pane. */ |
| 2959 | Lisp_Object item_name, enable, descrip, def, type, selected, help; |
| 2960 | item_name = AREF (menu_items, i + MENU_ITEMS_ITEM_NAME); |
| 2961 | enable = AREF (menu_items, i + MENU_ITEMS_ITEM_ENABLE); |
| 2962 | descrip = AREF (menu_items, i + MENU_ITEMS_ITEM_EQUIV_KEY); |
| 2963 | def = AREF (menu_items, i + MENU_ITEMS_ITEM_DEFINITION); |
| 2964 | type = AREF (menu_items, i + MENU_ITEMS_ITEM_TYPE); |
| 2965 | selected = AREF (menu_items, i + MENU_ITEMS_ITEM_SELECTED); |
| 2966 | help = AREF (menu_items, i + MENU_ITEMS_ITEM_HELP); |
| 2967 | |
| 2968 | #ifndef HAVE_MULTILINGUAL_MENU |
| 2969 | if (STRINGP (item_name) && STRING_MULTIBYTE (item_name)) |
| 2970 | { |
| 2971 | item_name = ENCODE_MENU_STRING (item_name); |
| 2972 | AREF (menu_items, i + MENU_ITEMS_ITEM_NAME) = item_name; |
| 2973 | } |
| 2974 | |
| 2975 | if (STRINGP (descrip) && STRING_MULTIBYTE (descrip)) |
| 2976 | { |
| 2977 | descrip = ENCODE_MENU_STRING (descrip); |
| 2978 | AREF (menu_items, i + MENU_ITEMS_ITEM_EQUIV_KEY) = descrip; |
| 2979 | } |
| 2980 | #endif /* not HAVE_MULTILINGUAL_MENU */ |
| 2981 | |
| 2982 | wv = xmalloc_widget_value (); |
| 2983 | if (prev_wv) |
| 2984 | prev_wv->next = wv; |
| 2985 | else |
| 2986 | save_wv->contents = wv; |
| 2987 | wv->name = (char *) SDATA (item_name); |
| 2988 | if (!NILP (descrip)) |
| 2989 | wv->key = (char *) SDATA (descrip); |
| 2990 | wv->value = 0; |
| 2991 | /* If this item has a null value, |
| 2992 | make the call_data null so that it won't display a box |
| 2993 | when the mouse is on it. */ |
| 2994 | wv->call_data |
| 2995 | = (!NILP (def) ? (void *) &XVECTOR (menu_items)->contents[i] : 0); |
| 2996 | wv->enabled = !NILP (enable); |
| 2997 | |
| 2998 | if (NILP (type)) |
| 2999 | wv->button_type = BUTTON_TYPE_NONE; |
| 3000 | else if (EQ (type, QCtoggle)) |
| 3001 | wv->button_type = BUTTON_TYPE_TOGGLE; |
| 3002 | else if (EQ (type, QCradio)) |
| 3003 | wv->button_type = BUTTON_TYPE_RADIO; |
| 3004 | else |
| 3005 | abort (); |
| 3006 | |
| 3007 | wv->selected = !NILP (selected); |
| 3008 | |
| 3009 | if (! STRINGP (help)) |
| 3010 | help = Qnil; |
| 3011 | |
| 3012 | wv->help = help; |
| 3013 | |
| 3014 | prev_wv = wv; |
| 3015 | |
| 3016 | i += MENU_ITEMS_ITEM_LENGTH; |
| 3017 | } |
| 3018 | } |
| 3019 | |
| 3020 | /* Deal with the title, if it is non-nil. */ |
| 3021 | if (!NILP (title)) |
| 3022 | { |
| 3023 | widget_value *wv_title = xmalloc_widget_value (); |
| 3024 | widget_value *wv_sep1 = xmalloc_widget_value (); |
| 3025 | widget_value *wv_sep2 = xmalloc_widget_value (); |
| 3026 | |
| 3027 | wv_sep2->name = "--"; |
| 3028 | wv_sep2->next = first_wv->contents; |
| 3029 | wv_sep2->help = Qnil; |
| 3030 | |
| 3031 | wv_sep1->name = "--"; |
| 3032 | wv_sep1->next = wv_sep2; |
| 3033 | wv_sep1->help = Qnil; |
| 3034 | |
| 3035 | #ifndef HAVE_MULTILINGUAL_MENU |
| 3036 | if (STRING_MULTIBYTE (title)) |
| 3037 | title = ENCODE_MENU_STRING (title); |
| 3038 | #endif |
| 3039 | |
| 3040 | wv_title->name = (char *) SDATA (title); |
| 3041 | wv_title->enabled = TRUE; |
| 3042 | wv_title->button_type = BUTTON_TYPE_NONE; |
| 3043 | wv_title->next = wv_sep1; |
| 3044 | wv_title->help = Qnil; |
| 3045 | first_wv->contents = wv_title; |
| 3046 | } |
| 3047 | |
| 3048 | /* No selection has been chosen yet. */ |
| 3049 | menu_item_selection = 0; |
| 3050 | |
| 3051 | /* Actually create and show the menu until popped down. */ |
| 3052 | create_and_show_popup_menu (f, first_wv, x, y, for_click); |
| 3053 | |
| 3054 | /* Free the widget_value objects we used to specify the contents. */ |
| 3055 | free_menubar_widget_value_tree (first_wv); |
| 3056 | |
| 3057 | /* Find the selected item, and its pane, to return |
| 3058 | the proper value. */ |
| 3059 | if (menu_item_selection != 0) |
| 3060 | { |
| 3061 | Lisp_Object prefix, entry; |
| 3062 | |
| 3063 | prefix = entry = Qnil; |
| 3064 | i = 0; |
| 3065 | while (i < menu_items_used) |
| 3066 | { |
| 3067 | if (EQ (XVECTOR (menu_items)->contents[i], Qnil)) |
| 3068 | { |
| 3069 | subprefix_stack[submenu_depth++] = prefix; |
| 3070 | prefix = entry; |
| 3071 | i++; |
| 3072 | } |
| 3073 | else if (EQ (XVECTOR (menu_items)->contents[i], Qlambda)) |
| 3074 | { |
| 3075 | prefix = subprefix_stack[--submenu_depth]; |
| 3076 | i++; |
| 3077 | } |
| 3078 | else if (EQ (XVECTOR (menu_items)->contents[i], Qt)) |
| 3079 | { |
| 3080 | prefix |
| 3081 | = XVECTOR (menu_items)->contents[i + MENU_ITEMS_PANE_PREFIX]; |
| 3082 | i += MENU_ITEMS_PANE_LENGTH; |
| 3083 | } |
| 3084 | /* Ignore a nil in the item list. |
| 3085 | It's meaningful only for dialog boxes. */ |
| 3086 | else if (EQ (XVECTOR (menu_items)->contents[i], Qquote)) |
| 3087 | i += 1; |
| 3088 | else |
| 3089 | { |
| 3090 | entry |
| 3091 | = XVECTOR (menu_items)->contents[i + MENU_ITEMS_ITEM_VALUE]; |
| 3092 | if (menu_item_selection == &XVECTOR (menu_items)->contents[i]) |
| 3093 | { |
| 3094 | if (keymaps != 0) |
| 3095 | { |
| 3096 | int j; |
| 3097 | |
| 3098 | entry = Fcons (entry, Qnil); |
| 3099 | if (!NILP (prefix)) |
| 3100 | entry = Fcons (prefix, entry); |
| 3101 | for (j = submenu_depth - 1; j >= 0; j--) |
| 3102 | if (!NILP (subprefix_stack[j])) |
| 3103 | entry = Fcons (subprefix_stack[j], entry); |
| 3104 | } |
| 3105 | return entry; |
| 3106 | } |
| 3107 | i += MENU_ITEMS_ITEM_LENGTH; |
| 3108 | } |
| 3109 | } |
| 3110 | } |
| 3111 | else if (!for_click) |
| 3112 | /* Make "Cancel" equivalent to C-g. */ |
| 3113 | Fsignal (Qquit, Qnil); |
| 3114 | |
| 3115 | return Qnil; |
| 3116 | } |
| 3117 | \f |
| 3118 | #ifdef USE_GTK |
| 3119 | static void |
| 3120 | dialog_selection_callback (widget, client_data) |
| 3121 | GtkWidget *widget; |
| 3122 | gpointer client_data; |
| 3123 | { |
| 3124 | /* The EMACS_INT cast avoids a warning. There's no problem |
| 3125 | as long as pointers have enough bits to hold small integers. */ |
| 3126 | if ((int) (EMACS_INT) client_data != -1) |
| 3127 | menu_item_selection = (Lisp_Object *) client_data; |
| 3128 | |
| 3129 | popup_activated_flag = 0; |
| 3130 | } |
| 3131 | |
| 3132 | /* Pop up the dialog for frame F defined by FIRST_WV and loop until the |
| 3133 | dialog pops down. |
| 3134 | menu_item_selection will be set to the selection. */ |
| 3135 | static void |
| 3136 | create_and_show_dialog (f, first_wv) |
| 3137 | FRAME_PTR f; |
| 3138 | widget_value *first_wv; |
| 3139 | { |
| 3140 | GtkWidget *menu; |
| 3141 | |
| 3142 | menu = xg_create_widget ("dialog", first_wv->name, f, first_wv, |
| 3143 | G_CALLBACK (dialog_selection_callback), |
| 3144 | G_CALLBACK (popup_deactivate_callback), |
| 3145 | 0); |
| 3146 | |
| 3147 | if (menu) |
| 3148 | { |
| 3149 | int specpdl_count = SPECPDL_INDEX (); |
| 3150 | record_unwind_protect (pop_down_menu, make_save_value (menu, 0)); |
| 3151 | |
| 3152 | /* Display the menu. */ |
| 3153 | gtk_widget_show_all (menu); |
| 3154 | |
| 3155 | /* Process events that apply to the menu. */ |
| 3156 | popup_widget_loop (1, menu); |
| 3157 | |
| 3158 | unbind_to (specpdl_count, Qnil); |
| 3159 | } |
| 3160 | } |
| 3161 | |
| 3162 | #else /* not USE_GTK */ |
| 3163 | static void |
| 3164 | dialog_selection_callback (widget, id, client_data) |
| 3165 | Widget widget; |
| 3166 | LWLIB_ID id; |
| 3167 | XtPointer client_data; |
| 3168 | { |
| 3169 | /* The EMACS_INT cast avoids a warning. There's no problem |
| 3170 | as long as pointers have enough bits to hold small integers. */ |
| 3171 | if ((int) (EMACS_INT) client_data != -1) |
| 3172 | menu_item_selection = (Lisp_Object *) client_data; |
| 3173 | |
| 3174 | BLOCK_INPUT; |
| 3175 | lw_destroy_all_widgets (id); |
| 3176 | UNBLOCK_INPUT; |
| 3177 | popup_activated_flag = 0; |
| 3178 | } |
| 3179 | |
| 3180 | |
| 3181 | /* Pop up the dialog for frame F defined by FIRST_WV and loop until the |
| 3182 | dialog pops down. |
| 3183 | menu_item_selection will be set to the selection. */ |
| 3184 | static void |
| 3185 | create_and_show_dialog (f, first_wv) |
| 3186 | FRAME_PTR f; |
| 3187 | widget_value *first_wv; |
| 3188 | { |
| 3189 | LWLIB_ID dialog_id; |
| 3190 | |
| 3191 | dialog_id = widget_id_tick++; |
| 3192 | lw_create_widget (first_wv->name, "dialog", dialog_id, first_wv, |
| 3193 | f->output_data.x->widget, 1, 0, |
| 3194 | dialog_selection_callback, 0, 0); |
| 3195 | lw_modify_all_widgets (dialog_id, first_wv->contents, True); |
| 3196 | |
| 3197 | /* Display the dialog box. */ |
| 3198 | lw_pop_up_all_widgets (dialog_id); |
| 3199 | popup_activated_flag = 1; |
| 3200 | x_activate_timeout_atimer (); |
| 3201 | |
| 3202 | /* Process events that apply to the dialog box. |
| 3203 | Also handle timers. */ |
| 3204 | { |
| 3205 | int count = SPECPDL_INDEX (); |
| 3206 | int fact = 4 * sizeof (LWLIB_ID); |
| 3207 | |
| 3208 | /* xdialog_show_unwind is responsible for popping the dialog box down. */ |
| 3209 | record_unwind_protect (pop_down_menu, |
| 3210 | Fcons (make_number (dialog_id >> (fact)), |
| 3211 | make_number (dialog_id & ~(-1 << (fact))))); |
| 3212 | |
| 3213 | popup_get_selection ((XEvent *) 0, FRAME_X_DISPLAY_INFO (f), |
| 3214 | dialog_id, 1); |
| 3215 | |
| 3216 | unbind_to (count, Qnil); |
| 3217 | } |
| 3218 | } |
| 3219 | |
| 3220 | #endif /* not USE_GTK */ |
| 3221 | |
| 3222 | static char * button_names [] = { |
| 3223 | "button1", "button2", "button3", "button4", "button5", |
| 3224 | "button6", "button7", "button8", "button9", "button10" }; |
| 3225 | |
| 3226 | static Lisp_Object |
| 3227 | xdialog_show (f, keymaps, title, header, error_name) |
| 3228 | FRAME_PTR f; |
| 3229 | int keymaps; |
| 3230 | Lisp_Object title, header; |
| 3231 | char **error_name; |
| 3232 | { |
| 3233 | int i, nb_buttons=0; |
| 3234 | char dialog_name[6]; |
| 3235 | |
| 3236 | widget_value *wv, *first_wv = 0, *prev_wv = 0; |
| 3237 | |
| 3238 | /* Number of elements seen so far, before boundary. */ |
| 3239 | int left_count = 0; |
| 3240 | /* 1 means we've seen the boundary between left-hand elts and right-hand. */ |
| 3241 | int boundary_seen = 0; |
| 3242 | |
| 3243 | *error_name = NULL; |
| 3244 | |
| 3245 | if (menu_items_n_panes > 1) |
| 3246 | { |
| 3247 | *error_name = "Multiple panes in dialog box"; |
| 3248 | return Qnil; |
| 3249 | } |
| 3250 | |
| 3251 | /* Create a tree of widget_value objects |
| 3252 | representing the text label and buttons. */ |
| 3253 | { |
| 3254 | Lisp_Object pane_name, prefix; |
| 3255 | char *pane_string; |
| 3256 | pane_name = XVECTOR (menu_items)->contents[MENU_ITEMS_PANE_NAME]; |
| 3257 | prefix = XVECTOR (menu_items)->contents[MENU_ITEMS_PANE_PREFIX]; |
| 3258 | pane_string = (NILP (pane_name) |
| 3259 | ? "" : (char *) SDATA (pane_name)); |
| 3260 | prev_wv = xmalloc_widget_value (); |
| 3261 | prev_wv->value = pane_string; |
| 3262 | if (keymaps && !NILP (prefix)) |
| 3263 | prev_wv->name++; |
| 3264 | prev_wv->enabled = 1; |
| 3265 | prev_wv->name = "message"; |
| 3266 | prev_wv->help = Qnil; |
| 3267 | first_wv = prev_wv; |
| 3268 | |
| 3269 | /* Loop over all panes and items, filling in the tree. */ |
| 3270 | i = MENU_ITEMS_PANE_LENGTH; |
| 3271 | while (i < menu_items_used) |
| 3272 | { |
| 3273 | |
| 3274 | /* Create a new item within current pane. */ |
| 3275 | Lisp_Object item_name, enable, descrip; |
| 3276 | item_name = XVECTOR (menu_items)->contents[i + MENU_ITEMS_ITEM_NAME]; |
| 3277 | enable = XVECTOR (menu_items)->contents[i + MENU_ITEMS_ITEM_ENABLE]; |
| 3278 | descrip |
| 3279 | = XVECTOR (menu_items)->contents[i + MENU_ITEMS_ITEM_EQUIV_KEY]; |
| 3280 | |
| 3281 | if (NILP (item_name)) |
| 3282 | { |
| 3283 | free_menubar_widget_value_tree (first_wv); |
| 3284 | *error_name = "Submenu in dialog items"; |
| 3285 | return Qnil; |
| 3286 | } |
| 3287 | if (EQ (item_name, Qquote)) |
| 3288 | { |
| 3289 | /* This is the boundary between left-side elts |
| 3290 | and right-side elts. Stop incrementing right_count. */ |
| 3291 | boundary_seen = 1; |
| 3292 | i++; |
| 3293 | continue; |
| 3294 | } |
| 3295 | if (nb_buttons >= 9) |
| 3296 | { |
| 3297 | free_menubar_widget_value_tree (first_wv); |
| 3298 | *error_name = "Too many dialog items"; |
| 3299 | return Qnil; |
| 3300 | } |
| 3301 | |
| 3302 | wv = xmalloc_widget_value (); |
| 3303 | prev_wv->next = wv; |
| 3304 | wv->name = (char *) button_names[nb_buttons]; |
| 3305 | if (!NILP (descrip)) |
| 3306 | wv->key = (char *) SDATA (descrip); |
| 3307 | wv->value = (char *) SDATA (item_name); |
| 3308 | wv->call_data = (void *) &XVECTOR (menu_items)->contents[i]; |
| 3309 | wv->enabled = !NILP (enable); |
| 3310 | wv->help = Qnil; |
| 3311 | prev_wv = wv; |
| 3312 | |
| 3313 | if (! boundary_seen) |
| 3314 | left_count++; |
| 3315 | |
| 3316 | nb_buttons++; |
| 3317 | i += MENU_ITEMS_ITEM_LENGTH; |
| 3318 | } |
| 3319 | |
| 3320 | /* If the boundary was not specified, |
| 3321 | by default put half on the left and half on the right. */ |
| 3322 | if (! boundary_seen) |
| 3323 | left_count = nb_buttons - nb_buttons / 2; |
| 3324 | |
| 3325 | wv = xmalloc_widget_value (); |
| 3326 | wv->name = dialog_name; |
| 3327 | wv->help = Qnil; |
| 3328 | |
| 3329 | /* Frame title: 'Q' = Question, 'I' = Information. |
| 3330 | Can also have 'E' = Error if, one day, we want |
| 3331 | a popup for errors. */ |
| 3332 | if (NILP(header)) |
| 3333 | dialog_name[0] = 'Q'; |
| 3334 | else |
| 3335 | dialog_name[0] = 'I'; |
| 3336 | |
| 3337 | /* Dialog boxes use a really stupid name encoding |
| 3338 | which specifies how many buttons to use |
| 3339 | and how many buttons are on the right. */ |
| 3340 | dialog_name[1] = '0' + nb_buttons; |
| 3341 | dialog_name[2] = 'B'; |
| 3342 | dialog_name[3] = 'R'; |
| 3343 | /* Number of buttons to put on the right. */ |
| 3344 | dialog_name[4] = '0' + nb_buttons - left_count; |
| 3345 | dialog_name[5] = 0; |
| 3346 | wv->contents = first_wv; |
| 3347 | first_wv = wv; |
| 3348 | } |
| 3349 | |
| 3350 | /* No selection has been chosen yet. */ |
| 3351 | menu_item_selection = 0; |
| 3352 | |
| 3353 | /* Actually create and show the dialog. */ |
| 3354 | create_and_show_dialog (f, first_wv); |
| 3355 | |
| 3356 | /* Free the widget_value objects we used to specify the contents. */ |
| 3357 | free_menubar_widget_value_tree (first_wv); |
| 3358 | |
| 3359 | /* Find the selected item, and its pane, to return |
| 3360 | the proper value. */ |
| 3361 | if (menu_item_selection != 0) |
| 3362 | { |
| 3363 | Lisp_Object prefix; |
| 3364 | |
| 3365 | prefix = Qnil; |
| 3366 | i = 0; |
| 3367 | while (i < menu_items_used) |
| 3368 | { |
| 3369 | Lisp_Object entry; |
| 3370 | |
| 3371 | if (EQ (XVECTOR (menu_items)->contents[i], Qt)) |
| 3372 | { |
| 3373 | prefix |
| 3374 | = XVECTOR (menu_items)->contents[i + MENU_ITEMS_PANE_PREFIX]; |
| 3375 | i += MENU_ITEMS_PANE_LENGTH; |
| 3376 | } |
| 3377 | else if (EQ (XVECTOR (menu_items)->contents[i], Qquote)) |
| 3378 | { |
| 3379 | /* This is the boundary between left-side elts and |
| 3380 | right-side elts. */ |
| 3381 | ++i; |
| 3382 | } |
| 3383 | else |
| 3384 | { |
| 3385 | entry |
| 3386 | = XVECTOR (menu_items)->contents[i + MENU_ITEMS_ITEM_VALUE]; |
| 3387 | if (menu_item_selection == &XVECTOR (menu_items)->contents[i]) |
| 3388 | { |
| 3389 | if (keymaps != 0) |
| 3390 | { |
| 3391 | entry = Fcons (entry, Qnil); |
| 3392 | if (!NILP (prefix)) |
| 3393 | entry = Fcons (prefix, entry); |
| 3394 | } |
| 3395 | return entry; |
| 3396 | } |
| 3397 | i += MENU_ITEMS_ITEM_LENGTH; |
| 3398 | } |
| 3399 | } |
| 3400 | } |
| 3401 | else |
| 3402 | /* Make "Cancel" equivalent to C-g. */ |
| 3403 | Fsignal (Qquit, Qnil); |
| 3404 | |
| 3405 | return Qnil; |
| 3406 | } |
| 3407 | |
| 3408 | #else /* not USE_X_TOOLKIT && not USE_GTK */ |
| 3409 | |
| 3410 | /* The frame of the last activated non-toolkit menu bar. |
| 3411 | Used to generate menu help events. */ |
| 3412 | |
| 3413 | static struct frame *menu_help_frame; |
| 3414 | |
| 3415 | |
| 3416 | /* Show help HELP_STRING, or clear help if HELP_STRING is null. |
| 3417 | |
| 3418 | PANE is the pane number, and ITEM is the menu item number in |
| 3419 | the menu (currently not used). |
| 3420 | |
| 3421 | This cannot be done with generating a HELP_EVENT because |
| 3422 | XMenuActivate contains a loop that doesn't let Emacs process |
| 3423 | keyboard events. */ |
| 3424 | |
| 3425 | static void |
| 3426 | menu_help_callback (help_string, pane, item) |
| 3427 | char *help_string; |
| 3428 | int pane, item; |
| 3429 | { |
| 3430 | extern Lisp_Object Qmenu_item; |
| 3431 | Lisp_Object *first_item; |
| 3432 | Lisp_Object pane_name; |
| 3433 | Lisp_Object menu_object; |
| 3434 | |
| 3435 | first_item = XVECTOR (menu_items)->contents; |
| 3436 | if (EQ (first_item[0], Qt)) |
| 3437 | pane_name = first_item[MENU_ITEMS_PANE_NAME]; |
| 3438 | else if (EQ (first_item[0], Qquote)) |
| 3439 | /* This shouldn't happen, see xmenu_show. */ |
| 3440 | pane_name = empty_string; |
| 3441 | else |
| 3442 | pane_name = first_item[MENU_ITEMS_ITEM_NAME]; |
| 3443 | |
| 3444 | /* (menu-item MENU-NAME PANE-NUMBER) */ |
| 3445 | menu_object = Fcons (Qmenu_item, |
| 3446 | Fcons (pane_name, |
| 3447 | Fcons (make_number (pane), Qnil))); |
| 3448 | show_help_echo (help_string ? build_string (help_string) : Qnil, |
| 3449 | Qnil, menu_object, make_number (item), 1); |
| 3450 | } |
| 3451 | |
| 3452 | static Lisp_Object |
| 3453 | pop_down_menu (arg) |
| 3454 | Lisp_Object arg; |
| 3455 | { |
| 3456 | struct Lisp_Save_Value *p1 = XSAVE_VALUE (Fcar (arg)); |
| 3457 | struct Lisp_Save_Value *p2 = XSAVE_VALUE (Fcdr (arg)); |
| 3458 | |
| 3459 | FRAME_PTR f = p1->pointer; |
| 3460 | XMenu *menu = p2->pointer; |
| 3461 | |
| 3462 | BLOCK_INPUT; |
| 3463 | #ifndef MSDOS |
| 3464 | XUngrabPointer (FRAME_X_DISPLAY (f), CurrentTime); |
| 3465 | XUngrabKeyboard (FRAME_X_DISPLAY (f), CurrentTime); |
| 3466 | #endif |
| 3467 | XMenuDestroy (FRAME_X_DISPLAY (f), menu); |
| 3468 | |
| 3469 | #ifdef HAVE_X_WINDOWS |
| 3470 | /* Assume the mouse has moved out of the X window. |
| 3471 | If it has actually moved in, we will get an EnterNotify. */ |
| 3472 | x_mouse_leave (FRAME_X_DISPLAY_INFO (f)); |
| 3473 | |
| 3474 | /* State that no mouse buttons are now held. |
| 3475 | (The oldXMenu code doesn't track this info for us.) |
| 3476 | That is not necessarily true, but the fiction leads to reasonable |
| 3477 | results, and it is a pain to ask which are actually held now. */ |
| 3478 | FRAME_X_DISPLAY_INFO (f)->grabbed = 0; |
| 3479 | |
| 3480 | #endif /* HAVE_X_WINDOWS */ |
| 3481 | |
| 3482 | UNBLOCK_INPUT; |
| 3483 | |
| 3484 | return Qnil; |
| 3485 | } |
| 3486 | |
| 3487 | |
| 3488 | static Lisp_Object |
| 3489 | xmenu_show (f, x, y, for_click, keymaps, title, error) |
| 3490 | FRAME_PTR f; |
| 3491 | int x, y; |
| 3492 | int for_click; |
| 3493 | int keymaps; |
| 3494 | Lisp_Object title; |
| 3495 | char **error; |
| 3496 | { |
| 3497 | Window root; |
| 3498 | XMenu *menu; |
| 3499 | int pane, selidx, lpane, status; |
| 3500 | Lisp_Object entry, pane_prefix; |
| 3501 | char *datap; |
| 3502 | int ulx, uly, width, height; |
| 3503 | int dispwidth, dispheight; |
| 3504 | int i, j, lines, maxlines; |
| 3505 | int maxwidth; |
| 3506 | int dummy_int; |
| 3507 | unsigned int dummy_uint; |
| 3508 | int specpdl_count = SPECPDL_INDEX (); |
| 3509 | |
| 3510 | *error = 0; |
| 3511 | if (menu_items_n_panes == 0) |
| 3512 | return Qnil; |
| 3513 | |
| 3514 | if (menu_items_used <= MENU_ITEMS_PANE_LENGTH) |
| 3515 | { |
| 3516 | *error = "Empty menu"; |
| 3517 | return Qnil; |
| 3518 | } |
| 3519 | |
| 3520 | /* Figure out which root window F is on. */ |
| 3521 | XGetGeometry (FRAME_X_DISPLAY (f), FRAME_X_WINDOW (f), &root, |
| 3522 | &dummy_int, &dummy_int, &dummy_uint, &dummy_uint, |
| 3523 | &dummy_uint, &dummy_uint); |
| 3524 | |
| 3525 | /* Make the menu on that window. */ |
| 3526 | menu = XMenuCreate (FRAME_X_DISPLAY (f), root, "emacs"); |
| 3527 | if (menu == NULL) |
| 3528 | { |
| 3529 | *error = "Can't create menu"; |
| 3530 | return Qnil; |
| 3531 | } |
| 3532 | |
| 3533 | /* Don't GC while we prepare and show the menu, |
| 3534 | because we give the oldxmenu library pointers to the |
| 3535 | contents of strings. */ |
| 3536 | inhibit_garbage_collection (); |
| 3537 | |
| 3538 | #ifdef HAVE_X_WINDOWS |
| 3539 | /* Adjust coordinates to relative to the outer (window manager) window. */ |
| 3540 | x += FRAME_OUTER_TO_INNER_DIFF_X (f); |
| 3541 | y += FRAME_OUTER_TO_INNER_DIFF_Y (f); |
| 3542 | #endif /* HAVE_X_WINDOWS */ |
| 3543 | |
| 3544 | /* Adjust coordinates to be root-window-relative. */ |
| 3545 | x += f->left_pos; |
| 3546 | y += f->top_pos; |
| 3547 | |
| 3548 | /* Create all the necessary panes and their items. */ |
| 3549 | maxlines = lines = i = 0; |
| 3550 | while (i < menu_items_used) |
| 3551 | { |
| 3552 | if (EQ (XVECTOR (menu_items)->contents[i], Qt)) |
| 3553 | { |
| 3554 | /* Create a new pane. */ |
| 3555 | Lisp_Object pane_name, prefix; |
| 3556 | char *pane_string; |
| 3557 | |
| 3558 | maxlines = max (maxlines, lines); |
| 3559 | lines = 0; |
| 3560 | pane_name = XVECTOR (menu_items)->contents[i + MENU_ITEMS_PANE_NAME]; |
| 3561 | prefix = XVECTOR (menu_items)->contents[i + MENU_ITEMS_PANE_PREFIX]; |
| 3562 | pane_string = (NILP (pane_name) |
| 3563 | ? "" : (char *) SDATA (pane_name)); |
| 3564 | if (keymaps && !NILP (prefix)) |
| 3565 | pane_string++; |
| 3566 | |
| 3567 | lpane = XMenuAddPane (FRAME_X_DISPLAY (f), menu, pane_string, TRUE); |
| 3568 | if (lpane == XM_FAILURE) |
| 3569 | { |
| 3570 | XMenuDestroy (FRAME_X_DISPLAY (f), menu); |
| 3571 | *error = "Can't create pane"; |
| 3572 | return Qnil; |
| 3573 | } |
| 3574 | i += MENU_ITEMS_PANE_LENGTH; |
| 3575 | |
| 3576 | /* Find the width of the widest item in this pane. */ |
| 3577 | maxwidth = 0; |
| 3578 | j = i; |
| 3579 | while (j < menu_items_used) |
| 3580 | { |
| 3581 | Lisp_Object item; |
| 3582 | item = XVECTOR (menu_items)->contents[j]; |
| 3583 | if (EQ (item, Qt)) |
| 3584 | break; |
| 3585 | if (NILP (item)) |
| 3586 | { |
| 3587 | j++; |
| 3588 | continue; |
| 3589 | } |
| 3590 | width = SBYTES (item); |
| 3591 | if (width > maxwidth) |
| 3592 | maxwidth = width; |
| 3593 | |
| 3594 | j += MENU_ITEMS_ITEM_LENGTH; |
| 3595 | } |
| 3596 | } |
| 3597 | /* Ignore a nil in the item list. |
| 3598 | It's meaningful only for dialog boxes. */ |
| 3599 | else if (EQ (XVECTOR (menu_items)->contents[i], Qquote)) |
| 3600 | i += 1; |
| 3601 | else |
| 3602 | { |
| 3603 | /* Create a new item within current pane. */ |
| 3604 | Lisp_Object item_name, enable, descrip, help; |
| 3605 | unsigned char *item_data; |
| 3606 | char *help_string; |
| 3607 | |
| 3608 | item_name = XVECTOR (menu_items)->contents[i + MENU_ITEMS_ITEM_NAME]; |
| 3609 | enable = XVECTOR (menu_items)->contents[i + MENU_ITEMS_ITEM_ENABLE]; |
| 3610 | descrip |
| 3611 | = XVECTOR (menu_items)->contents[i + MENU_ITEMS_ITEM_EQUIV_KEY]; |
| 3612 | help = XVECTOR (menu_items)->contents[i + MENU_ITEMS_ITEM_HELP]; |
| 3613 | help_string = STRINGP (help) ? SDATA (help) : NULL; |
| 3614 | |
| 3615 | if (!NILP (descrip)) |
| 3616 | { |
| 3617 | int gap = maxwidth - SBYTES (item_name); |
| 3618 | #ifdef C_ALLOCA |
| 3619 | Lisp_Object spacer; |
| 3620 | spacer = Fmake_string (make_number (gap), make_number (' ')); |
| 3621 | item_name = concat2 (item_name, spacer); |
| 3622 | item_name = concat2 (item_name, descrip); |
| 3623 | item_data = SDATA (item_name); |
| 3624 | #else |
| 3625 | /* if alloca is fast, use that to make the space, |
| 3626 | to reduce gc needs. */ |
| 3627 | item_data |
| 3628 | = (unsigned char *) alloca (maxwidth |
| 3629 | + SBYTES (descrip) + 1); |
| 3630 | bcopy (SDATA (item_name), item_data, |
| 3631 | SBYTES (item_name)); |
| 3632 | for (j = SCHARS (item_name); j < maxwidth; j++) |
| 3633 | item_data[j] = ' '; |
| 3634 | bcopy (SDATA (descrip), item_data + j, |
| 3635 | SBYTES (descrip)); |
| 3636 | item_data[j + SBYTES (descrip)] = 0; |
| 3637 | #endif |
| 3638 | } |
| 3639 | else |
| 3640 | item_data = SDATA (item_name); |
| 3641 | |
| 3642 | if (XMenuAddSelection (FRAME_X_DISPLAY (f), |
| 3643 | menu, lpane, 0, item_data, |
| 3644 | !NILP (enable), help_string) |
| 3645 | == XM_FAILURE) |
| 3646 | { |
| 3647 | XMenuDestroy (FRAME_X_DISPLAY (f), menu); |
| 3648 | *error = "Can't add selection to menu"; |
| 3649 | return Qnil; |
| 3650 | } |
| 3651 | i += MENU_ITEMS_ITEM_LENGTH; |
| 3652 | lines++; |
| 3653 | } |
| 3654 | } |
| 3655 | |
| 3656 | maxlines = max (maxlines, lines); |
| 3657 | |
| 3658 | /* All set and ready to fly. */ |
| 3659 | XMenuRecompute (FRAME_X_DISPLAY (f), menu); |
| 3660 | dispwidth = DisplayWidth (FRAME_X_DISPLAY (f), FRAME_X_SCREEN_NUMBER (f)); |
| 3661 | dispheight = DisplayHeight (FRAME_X_DISPLAY (f), FRAME_X_SCREEN_NUMBER (f)); |
| 3662 | x = min (x, dispwidth); |
| 3663 | y = min (y, dispheight); |
| 3664 | x = max (x, 1); |
| 3665 | y = max (y, 1); |
| 3666 | XMenuLocate (FRAME_X_DISPLAY (f), menu, 0, 0, x, y, |
| 3667 | &ulx, &uly, &width, &height); |
| 3668 | if (ulx+width > dispwidth) |
| 3669 | { |
| 3670 | x -= (ulx + width) - dispwidth; |
| 3671 | ulx = dispwidth - width; |
| 3672 | } |
| 3673 | if (uly+height > dispheight) |
| 3674 | { |
| 3675 | y -= (uly + height) - dispheight; |
| 3676 | uly = dispheight - height; |
| 3677 | } |
| 3678 | if (ulx < 0) x -= ulx; |
| 3679 | if (uly < 0) y -= uly; |
| 3680 | |
| 3681 | if (! for_click) |
| 3682 | { |
| 3683 | /* If position was not given by a mouse click, adjust so upper left |
| 3684 | corner of the menu as a whole ends up at given coordinates. This |
| 3685 | is what x-popup-menu says in its documentation. */ |
| 3686 | x += width/2; |
| 3687 | y += 1.5*height/(maxlines+2); |
| 3688 | } |
| 3689 | |
| 3690 | XMenuSetAEQ (menu, TRUE); |
| 3691 | XMenuSetFreeze (menu, TRUE); |
| 3692 | pane = selidx = 0; |
| 3693 | |
| 3694 | #ifndef MSDOS |
| 3695 | XMenuActivateSetWaitFunction (x_menu_wait_for_event, FRAME_X_DISPLAY (f)); |
| 3696 | #endif |
| 3697 | |
| 3698 | record_unwind_protect (pop_down_menu, |
| 3699 | Fcons (make_save_value (f, 0), |
| 3700 | make_save_value (menu, 0))); |
| 3701 | |
| 3702 | /* Help display under X won't work because XMenuActivate contains |
| 3703 | a loop that doesn't give Emacs a chance to process it. */ |
| 3704 | menu_help_frame = f; |
| 3705 | status = XMenuActivate (FRAME_X_DISPLAY (f), menu, &pane, &selidx, |
| 3706 | x, y, ButtonReleaseMask, &datap, |
| 3707 | menu_help_callback); |
| 3708 | |
| 3709 | switch (status) |
| 3710 | { |
| 3711 | case XM_SUCCESS: |
| 3712 | #ifdef XDEBUG |
| 3713 | fprintf (stderr, "pane= %d line = %d\n", panes, selidx); |
| 3714 | #endif |
| 3715 | |
| 3716 | /* Find the item number SELIDX in pane number PANE. */ |
| 3717 | i = 0; |
| 3718 | while (i < menu_items_used) |
| 3719 | { |
| 3720 | if (EQ (XVECTOR (menu_items)->contents[i], Qt)) |
| 3721 | { |
| 3722 | if (pane == 0) |
| 3723 | pane_prefix |
| 3724 | = XVECTOR (menu_items)->contents[i + MENU_ITEMS_PANE_PREFIX]; |
| 3725 | pane--; |
| 3726 | i += MENU_ITEMS_PANE_LENGTH; |
| 3727 | } |
| 3728 | else |
| 3729 | { |
| 3730 | if (pane == -1) |
| 3731 | { |
| 3732 | if (selidx == 0) |
| 3733 | { |
| 3734 | entry |
| 3735 | = XVECTOR (menu_items)->contents[i + MENU_ITEMS_ITEM_VALUE]; |
| 3736 | if (keymaps != 0) |
| 3737 | { |
| 3738 | entry = Fcons (entry, Qnil); |
| 3739 | if (!NILP (pane_prefix)) |
| 3740 | entry = Fcons (pane_prefix, entry); |
| 3741 | } |
| 3742 | break; |
| 3743 | } |
| 3744 | selidx--; |
| 3745 | } |
| 3746 | i += MENU_ITEMS_ITEM_LENGTH; |
| 3747 | } |
| 3748 | } |
| 3749 | break; |
| 3750 | |
| 3751 | case XM_FAILURE: |
| 3752 | *error = "Can't activate menu"; |
| 3753 | case XM_IA_SELECT: |
| 3754 | entry = Qnil; |
| 3755 | break; |
| 3756 | case XM_NO_SELECT: |
| 3757 | /* Make "Cancel" equivalent to C-g unless FOR_CLICK (which means |
| 3758 | the menu was invoked with a mouse event as POSITION). */ |
| 3759 | if (! for_click) |
| 3760 | Fsignal (Qquit, Qnil); |
| 3761 | entry = Qnil; |
| 3762 | break; |
| 3763 | } |
| 3764 | |
| 3765 | unbind_to (specpdl_count, Qnil); |
| 3766 | |
| 3767 | return entry; |
| 3768 | } |
| 3769 | |
| 3770 | #endif /* not USE_X_TOOLKIT */ |
| 3771 | |
| 3772 | #endif /* HAVE_MENUS */ |
| 3773 | \f |
| 3774 | void |
| 3775 | syms_of_xmenu () |
| 3776 | { |
| 3777 | staticpro (&menu_items); |
| 3778 | menu_items = Qnil; |
| 3779 | menu_items_inuse = Qnil; |
| 3780 | |
| 3781 | Qdebug_on_next_call = intern ("debug-on-next-call"); |
| 3782 | staticpro (&Qdebug_on_next_call); |
| 3783 | |
| 3784 | #ifdef USE_X_TOOLKIT |
| 3785 | widget_id_tick = (1<<16); |
| 3786 | next_menubar_widget_id = 1; |
| 3787 | #endif |
| 3788 | |
| 3789 | defsubr (&Sx_popup_menu); |
| 3790 | defsubr (&Smenu_or_popup_active_p); |
| 3791 | |
| 3792 | #if defined (USE_GTK) || defined (USE_X_TOOLKIT) |
| 3793 | defsubr (&Smenu_bar_open); |
| 3794 | Ffset (intern ("accelerate-menu"), intern (Smenu_bar_open.symbol_name)); |
| 3795 | #endif |
| 3796 | |
| 3797 | #ifdef HAVE_MENUS |
| 3798 | defsubr (&Sx_popup_dialog); |
| 3799 | #endif |
| 3800 | } |
| 3801 | |
| 3802 | /* arch-tag: 92ea573c-398e-496e-ac73-2436f7d63242 |
| 3803 | (do not change this comment) */ |