| 1 | /* X Communication module for terminals which understand the X protocol. |
| 2 | Copyright (C) 1986, 1988, 1993, 1994 Free Software Foundation, Inc. |
| 3 | |
| 4 | This file is part of GNU Emacs. |
| 5 | |
| 6 | GNU Emacs is free software; you can redistribute it and/or modify |
| 7 | it under the terms of the GNU General Public License as published by |
| 8 | the Free Software Foundation; either version 2, or (at your option) |
| 9 | any later version. |
| 10 | |
| 11 | GNU Emacs is distributed in the hope that it will be useful, |
| 12 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 13 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 14 | GNU General Public License for more details. |
| 15 | |
| 16 | You should have received a copy of the GNU General Public License |
| 17 | along with GNU Emacs; see the file COPYING. If not, write to |
| 18 | the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */ |
| 19 | |
| 20 | /* X pop-up deck-of-cards menu facility for gnuemacs. |
| 21 | * |
| 22 | * Written by Jon Arnold and Roman Budzianowski |
| 23 | * Mods and rewrite by Robert Krawitz |
| 24 | * |
| 25 | */ |
| 26 | |
| 27 | /* Modified by Fred Pierresteguy on December 93 |
| 28 | to make the popup menus and menubar use the Xt. */ |
| 29 | |
| 30 | /* Rewritten for clarity and GC protection by rms in Feb 94. */ |
| 31 | |
| 32 | #include <stdio.h> |
| 33 | |
| 34 | /* On 4.3 this loses if it comes after xterm.h. */ |
| 35 | #include <signal.h> |
| 36 | #include <config.h> |
| 37 | #include "lisp.h" |
| 38 | #include "termhooks.h" |
| 39 | #include "frame.h" |
| 40 | #include "window.h" |
| 41 | #include "keyboard.h" |
| 42 | #include "blockinput.h" |
| 43 | |
| 44 | /* This may include sys/types.h, and that somehow loses |
| 45 | if this is not done before the other system files. */ |
| 46 | #include "xterm.h" |
| 47 | |
| 48 | /* Load sys/types.h if not already loaded. |
| 49 | In some systems loading it twice is suicidal. */ |
| 50 | #ifndef makedev |
| 51 | #include <sys/types.h> |
| 52 | #endif |
| 53 | |
| 54 | #include "dispextern.h" |
| 55 | |
| 56 | #ifdef HAVE_X11 |
| 57 | #include "../oldXMenu/XMenu.h" |
| 58 | #else |
| 59 | #include <X/XMenu.h> |
| 60 | #endif |
| 61 | |
| 62 | #ifdef USE_X_TOOLKIT |
| 63 | #include <X11/Xlib.h> |
| 64 | #include <X11/IntrinsicP.h> |
| 65 | #include <X11/CoreP.h> |
| 66 | #include <X11/StringDefs.h> |
| 67 | #include <X11/Xaw/Paned.h> |
| 68 | #include "../lwlib/lwlib.h" |
| 69 | #include "../lwlib/xlwmenuP.h" |
| 70 | #endif /* USE_X_TOOLKIT */ |
| 71 | |
| 72 | #define min(x,y) (((x) < (y)) ? (x) : (y)) |
| 73 | #define max(x,y) (((x) > (y)) ? (x) : (y)) |
| 74 | |
| 75 | #ifndef TRUE |
| 76 | #define TRUE 1 |
| 77 | #define FALSE 0 |
| 78 | #endif /* no TRUE */ |
| 79 | |
| 80 | #ifdef HAVE_X11 |
| 81 | extern Display *x_current_display; |
| 82 | #else |
| 83 | #define ButtonReleaseMask ButtonReleased |
| 84 | #endif /* not HAVE_X11 */ |
| 85 | |
| 86 | /* We need a unique id for each popup menu and dialog box. */ |
| 87 | static unsigned int popup_id_tick; |
| 88 | |
| 89 | extern Lisp_Object Qmenu_enable; |
| 90 | extern Lisp_Object Qmenu_bar; |
| 91 | |
| 92 | #ifdef USE_X_TOOLKIT |
| 93 | extern void process_expose_from_menu (); |
| 94 | extern XtAppContext Xt_app_con; |
| 95 | |
| 96 | static int string_width (); |
| 97 | static Lisp_Object xdialog_show (); |
| 98 | #endif |
| 99 | |
| 100 | static Lisp_Object xmenu_show (); |
| 101 | static void keymap_panes (); |
| 102 | static void single_keymap_panes (); |
| 103 | static void list_of_panes (); |
| 104 | static void list_of_items (); |
| 105 | \f |
| 106 | /* This holds a Lisp vector that holds the results of decoding |
| 107 | the keymaps or alist-of-alists that specify a menu. |
| 108 | |
| 109 | It describes the panes and items within the panes. |
| 110 | |
| 111 | Each pane is described by 3 elements in the vector: |
| 112 | t, the pane name, the pane's prefix key. |
| 113 | Then follow the pane's items, with 4 elements per item: |
| 114 | the item string, the enable flag, the item's value, |
| 115 | and the equivalent keyboard key's description string. |
| 116 | |
| 117 | In some cases, multiple levels of menus may be described. |
| 118 | A single vector slot containing nil indicates the start of a submenu. |
| 119 | A single vector slot containing lambda indicates the end of a submenu. |
| 120 | The submenu follows a menu item which is the way to reach the submenu. |
| 121 | |
| 122 | Using a Lisp vector to hold this information while we decode it |
| 123 | takes care of protecting all the data from GC. */ |
| 124 | |
| 125 | #define MENU_ITEMS_PANE_NAME 1 |
| 126 | #define MENU_ITEMS_PANE_PREFIX 2 |
| 127 | #define MENU_ITEMS_PANE_LENGTH 3 |
| 128 | |
| 129 | #define MENU_ITEMS_ITEM_NAME 0 |
| 130 | #define MENU_ITEMS_ITEM_ENABLE 1 |
| 131 | #define MENU_ITEMS_ITEM_VALUE 2 |
| 132 | #define MENU_ITEMS_ITEM_EQUIV_KEY 3 |
| 133 | #define MENU_ITEMS_ITEM_LENGTH 4 |
| 134 | |
| 135 | static Lisp_Object menu_items; |
| 136 | |
| 137 | /* Number of slots currently allocated in menu_items. */ |
| 138 | static int menu_items_allocated; |
| 139 | |
| 140 | /* This is the index in menu_items of the first empty slot. */ |
| 141 | static int menu_items_used; |
| 142 | |
| 143 | /* The number of panes currently recorded in menu_items, |
| 144 | excluding those within submenus. */ |
| 145 | static int menu_items_n_panes; |
| 146 | |
| 147 | /* Current depth within submenus. */ |
| 148 | static int menu_items_submenu_depth; |
| 149 | |
| 150 | /* Initialize the menu_items structure if we haven't already done so. |
| 151 | Also mark it as currently empty. */ |
| 152 | |
| 153 | static void |
| 154 | init_menu_items () |
| 155 | { |
| 156 | if (NILP (menu_items)) |
| 157 | { |
| 158 | menu_items_allocated = 60; |
| 159 | menu_items = Fmake_vector (make_number (menu_items_allocated), Qnil); |
| 160 | } |
| 161 | |
| 162 | menu_items_used = 0; |
| 163 | menu_items_n_panes = 0; |
| 164 | menu_items_submenu_depth = 0; |
| 165 | } |
| 166 | |
| 167 | /* Call at the end of generating the data in menu_items. |
| 168 | This fills in the number of items in the last pane. */ |
| 169 | |
| 170 | static void |
| 171 | finish_menu_items () |
| 172 | { |
| 173 | } |
| 174 | |
| 175 | /* Call when finished using the data for the current menu |
| 176 | in menu_items. */ |
| 177 | |
| 178 | static void |
| 179 | discard_menu_items () |
| 180 | { |
| 181 | /* Free the structure if it is especially large. |
| 182 | Otherwise, hold on to it, to save time. */ |
| 183 | if (menu_items_allocated > 200) |
| 184 | { |
| 185 | menu_items = Qnil; |
| 186 | menu_items_allocated = 0; |
| 187 | } |
| 188 | } |
| 189 | |
| 190 | /* Make the menu_items vector twice as large. */ |
| 191 | |
| 192 | static void |
| 193 | grow_menu_items () |
| 194 | { |
| 195 | Lisp_Object old; |
| 196 | int old_size = menu_items_allocated; |
| 197 | old = menu_items; |
| 198 | |
| 199 | menu_items_allocated *= 2; |
| 200 | menu_items = Fmake_vector (make_number (menu_items_allocated), Qnil); |
| 201 | bcopy (XVECTOR (old)->contents, XVECTOR (menu_items)->contents, |
| 202 | old_size * sizeof (Lisp_Object)); |
| 203 | } |
| 204 | |
| 205 | /* Begin a submenu. */ |
| 206 | |
| 207 | static void |
| 208 | push_submenu_start () |
| 209 | { |
| 210 | if (menu_items_used + 1 > menu_items_allocated) |
| 211 | grow_menu_items (); |
| 212 | |
| 213 | XVECTOR (menu_items)->contents[menu_items_used++] = Qnil; |
| 214 | menu_items_submenu_depth++; |
| 215 | } |
| 216 | |
| 217 | /* End a submenu. */ |
| 218 | |
| 219 | static void |
| 220 | push_submenu_end () |
| 221 | { |
| 222 | if (menu_items_used + 1 > menu_items_allocated) |
| 223 | grow_menu_items (); |
| 224 | |
| 225 | XVECTOR (menu_items)->contents[menu_items_used++] = Qlambda; |
| 226 | menu_items_submenu_depth--; |
| 227 | } |
| 228 | |
| 229 | /* Start a new menu pane in menu_items.. |
| 230 | NAME is the pane name. PREFIX_VEC is a prefix key for this pane. */ |
| 231 | |
| 232 | static void |
| 233 | push_menu_pane (name, prefix_vec) |
| 234 | Lisp_Object name, prefix_vec; |
| 235 | { |
| 236 | if (menu_items_used + MENU_ITEMS_PANE_LENGTH > menu_items_allocated) |
| 237 | grow_menu_items (); |
| 238 | |
| 239 | if (menu_items_submenu_depth == 0) |
| 240 | menu_items_n_panes++; |
| 241 | XVECTOR (menu_items)->contents[menu_items_used++] = Qt; |
| 242 | XVECTOR (menu_items)->contents[menu_items_used++] = name; |
| 243 | XVECTOR (menu_items)->contents[menu_items_used++] = prefix_vec; |
| 244 | } |
| 245 | |
| 246 | /* Push one menu item into the current pane. |
| 247 | NAME is the string to display. ENABLE if non-nil means |
| 248 | this item can be selected. KEY is the key generated by |
| 249 | choosing this item. EQUIV is the textual description |
| 250 | of the keyboard equivalent for this item (or nil if none). */ |
| 251 | |
| 252 | static void |
| 253 | push_menu_item (name, enable, key, equiv) |
| 254 | Lisp_Object name, enable, key, equiv; |
| 255 | { |
| 256 | if (menu_items_used + MENU_ITEMS_ITEM_LENGTH > menu_items_allocated) |
| 257 | grow_menu_items (); |
| 258 | |
| 259 | XVECTOR (menu_items)->contents[menu_items_used++] = name; |
| 260 | XVECTOR (menu_items)->contents[menu_items_used++] = enable; |
| 261 | XVECTOR (menu_items)->contents[menu_items_used++] = key; |
| 262 | XVECTOR (menu_items)->contents[menu_items_used++] = equiv; |
| 263 | } |
| 264 | \f |
| 265 | /* Figure out the current keyboard equivalent of a menu item ITEM1. |
| 266 | The item string for menu display should be ITEM_STRING. |
| 267 | Store the equivalent keyboard key sequence's |
| 268 | textual description into *DESCRIP_PTR. |
| 269 | Also cache them in the item itself. |
| 270 | Return the real definition to execute. */ |
| 271 | |
| 272 | static Lisp_Object |
| 273 | menu_item_equiv_key (item_string, item1, descrip_ptr) |
| 274 | Lisp_Object item_string; |
| 275 | Lisp_Object item1; |
| 276 | Lisp_Object *descrip_ptr; |
| 277 | { |
| 278 | /* This is the real definition--the function to run. */ |
| 279 | Lisp_Object def; |
| 280 | /* This is the sublist that records cached equiv key data |
| 281 | so we can save time. */ |
| 282 | Lisp_Object cachelist; |
| 283 | /* These are the saved equivalent keyboard key sequence |
| 284 | and its key-description. */ |
| 285 | Lisp_Object savedkey, descrip; |
| 286 | Lisp_Object def1; |
| 287 | int changed = 0; |
| 288 | |
| 289 | /* If a help string follows the item string, skip it. */ |
| 290 | if (CONSP (XCONS (item1)->cdr) |
| 291 | && STRINGP (XCONS (XCONS (item1)->cdr)->car)) |
| 292 | item1 = XCONS (item1)->cdr; |
| 293 | |
| 294 | def = Fcdr (item1); |
| 295 | |
| 296 | /* Get out the saved equivalent-keyboard-key info. */ |
| 297 | cachelist = savedkey = descrip = Qnil; |
| 298 | if (CONSP (def) && CONSP (XCONS (def)->car) |
| 299 | && (NILP (XCONS (XCONS (def)->car)->car) |
| 300 | || VECTORP (XCONS (XCONS (def)->car)->car))) |
| 301 | { |
| 302 | cachelist = XCONS (def)->car; |
| 303 | def = XCONS (def)->cdr; |
| 304 | savedkey = XCONS (cachelist)->car; |
| 305 | descrip = XCONS (cachelist)->cdr; |
| 306 | } |
| 307 | |
| 308 | /* Is it still valid? */ |
| 309 | def1 = Qnil; |
| 310 | if (!NILP (savedkey)) |
| 311 | def1 = Fkey_binding (savedkey, Qnil); |
| 312 | /* If not, update it. */ |
| 313 | if (! EQ (def1, def) |
| 314 | /* If something had no key binding before, don't recheck it-- |
| 315 | doing that takes too much time and makes menus too slow. */ |
| 316 | && !(!NILP (cachelist) && NILP (savedkey))) |
| 317 | { |
| 318 | changed = 1; |
| 319 | descrip = Qnil; |
| 320 | savedkey = Fwhere_is_internal (def, Qnil, Qt, Qnil); |
| 321 | if (VECTORP (savedkey) |
| 322 | && EQ (XVECTOR (savedkey)->contents[0], Qmenu_bar)) |
| 323 | savedkey = Qnil; |
| 324 | if (!NILP (savedkey)) |
| 325 | { |
| 326 | descrip = Fkey_description (savedkey); |
| 327 | descrip = concat2 (make_string (" (", 3), descrip); |
| 328 | descrip = concat2 (descrip, make_string (")", 1)); |
| 329 | } |
| 330 | } |
| 331 | |
| 332 | /* Cache the data we just got in a sublist of the menu binding. */ |
| 333 | if (NILP (cachelist)) |
| 334 | XCONS (item1)->cdr = Fcons (Fcons (savedkey, descrip), def); |
| 335 | else if (changed) |
| 336 | { |
| 337 | XCONS (cachelist)->car = savedkey; |
| 338 | XCONS (cachelist)->cdr = descrip; |
| 339 | } |
| 340 | |
| 341 | *descrip_ptr = descrip; |
| 342 | return def; |
| 343 | } |
| 344 | |
| 345 | /* This is used as the handler when calling internal_condition_case_1. */ |
| 346 | |
| 347 | static Lisp_Object |
| 348 | menu_item_enabled_p_1 (arg) |
| 349 | Lisp_Object arg; |
| 350 | { |
| 351 | return Qnil; |
| 352 | } |
| 353 | |
| 354 | /* Return non-nil if the command DEF is enabled when used as a menu item. |
| 355 | This is based on looking for a menu-enable property. |
| 356 | If NOTREAL is set, don't bother really computing this. */ |
| 357 | |
| 358 | static Lisp_Object |
| 359 | menu_item_enabled_p (def, notreal) |
| 360 | Lisp_Object def; |
| 361 | { |
| 362 | Lisp_Object enabled, tem; |
| 363 | |
| 364 | enabled = Qt; |
| 365 | if (notreal) |
| 366 | return enabled; |
| 367 | if (XTYPE (def) == Lisp_Symbol) |
| 368 | { |
| 369 | /* No property, or nil, means enable. |
| 370 | Otherwise, enable if value is not nil. */ |
| 371 | tem = Fget (def, Qmenu_enable); |
| 372 | if (!NILP (tem)) |
| 373 | /* (condition-case nil (eval tem) |
| 374 | (error nil)) */ |
| 375 | enabled = internal_condition_case_1 (Feval, tem, Qerror, |
| 376 | menu_item_enabled_p_1); |
| 377 | } |
| 378 | return enabled; |
| 379 | } |
| 380 | \f |
| 381 | /* Look through KEYMAPS, a vector of keymaps that is NMAPS long, |
| 382 | and generate menu panes for them in menu_items. |
| 383 | If NOTREAL is nonzero, |
| 384 | don't bother really computing whether an item is enabled. */ |
| 385 | |
| 386 | static void |
| 387 | keymap_panes (keymaps, nmaps, notreal) |
| 388 | Lisp_Object *keymaps; |
| 389 | int nmaps; |
| 390 | int notreal; |
| 391 | { |
| 392 | int mapno; |
| 393 | |
| 394 | init_menu_items (); |
| 395 | |
| 396 | /* Loop over the given keymaps, making a pane for each map. |
| 397 | But don't make a pane that is empty--ignore that map instead. |
| 398 | P is the number of panes we have made so far. */ |
| 399 | for (mapno = 0; mapno < nmaps; mapno++) |
| 400 | single_keymap_panes (keymaps[mapno], Qnil, Qnil, notreal); |
| 401 | |
| 402 | finish_menu_items (); |
| 403 | } |
| 404 | |
| 405 | /* This is a recursive subroutine of keymap_panes. |
| 406 | It handles one keymap, KEYMAP. |
| 407 | The other arguments are passed along |
| 408 | or point to local variables of the previous function. |
| 409 | If NOTREAL is nonzero, |
| 410 | don't bother really computing whether an item is enabled. */ |
| 411 | |
| 412 | static void |
| 413 | single_keymap_panes (keymap, pane_name, prefix, notreal) |
| 414 | Lisp_Object keymap; |
| 415 | Lisp_Object pane_name; |
| 416 | Lisp_Object prefix; |
| 417 | int notreal; |
| 418 | { |
| 419 | Lisp_Object pending_maps; |
| 420 | Lisp_Object tail, item, item1, item_string, table; |
| 421 | struct gcpro gcpro1, gcpro2, gcpro3, gcpro4; |
| 422 | |
| 423 | pending_maps = Qnil; |
| 424 | |
| 425 | push_menu_pane (pane_name, prefix); |
| 426 | |
| 427 | for (tail = keymap; XTYPE (tail) == Lisp_Cons; tail = XCONS (tail)->cdr) |
| 428 | { |
| 429 | /* Look at each key binding, and if it has a menu string, |
| 430 | make a menu item from it. */ |
| 431 | item = XCONS (tail)->car; |
| 432 | if (XTYPE (item) == Lisp_Cons) |
| 433 | { |
| 434 | item1 = XCONS (item)->cdr; |
| 435 | if (XTYPE (item1) == Lisp_Cons) |
| 436 | { |
| 437 | item_string = XCONS (item1)->car; |
| 438 | if (XTYPE (item_string) == Lisp_String) |
| 439 | { |
| 440 | /* This is the real definition--the function to run. */ |
| 441 | Lisp_Object def; |
| 442 | /* These are the saved equivalent keyboard key sequence |
| 443 | and its key-description. */ |
| 444 | Lisp_Object descrip; |
| 445 | Lisp_Object tem, enabled; |
| 446 | |
| 447 | def = menu_item_equiv_key (item_string, item1, &descrip); |
| 448 | |
| 449 | /* GCPRO because we will call eval. |
| 450 | Protecting KEYMAP preserves everything we use; |
| 451 | aside from that, must protect whatever might be |
| 452 | a string. Since there's no GCPRO5, we refetch |
| 453 | item_string instead of protecting it. */ |
| 454 | GCPRO4 (keymap, pending_maps, def, descrip); |
| 455 | enabled = menu_item_enabled_p (def, notreal); |
| 456 | |
| 457 | UNGCPRO; |
| 458 | |
| 459 | item_string = XCONS (item1)->car; |
| 460 | |
| 461 | tem = Fkeymapp (def); |
| 462 | if (XSTRING (item_string)->data[0] == '@' && !NILP (tem)) |
| 463 | pending_maps = Fcons (Fcons (def, Fcons (item_string, XCONS (item)->car)), |
| 464 | pending_maps); |
| 465 | else |
| 466 | { |
| 467 | Lisp_Object submap; |
| 468 | submap = get_keymap_1 (def, 0, 1); |
| 469 | #ifndef USE_X_TOOLKIT |
| 470 | /* Indicate visually that this is a submenu. */ |
| 471 | if (!NILP (submap)) |
| 472 | item_string = concat2 (item_string, |
| 473 | build_string (" >")); |
| 474 | #endif |
| 475 | push_menu_item (item_string, enabled, XCONS (item)->car, |
| 476 | descrip); |
| 477 | #ifdef USE_X_TOOLKIT |
| 478 | /* Display a submenu using the toolkit. */ |
| 479 | if (! NILP (submap)) |
| 480 | { |
| 481 | push_submenu_start (); |
| 482 | single_keymap_panes (submap, Qnil, |
| 483 | XCONS (item)->car, notreal); |
| 484 | push_submenu_end (); |
| 485 | } |
| 486 | #endif |
| 487 | } |
| 488 | } |
| 489 | } |
| 490 | } |
| 491 | else if (XTYPE (item) == Lisp_Vector) |
| 492 | { |
| 493 | /* Loop over the char values represented in the vector. */ |
| 494 | int len = XVECTOR (item)->size; |
| 495 | int c; |
| 496 | for (c = 0; c < len; c++) |
| 497 | { |
| 498 | Lisp_Object character; |
| 499 | XFASTINT (character) = c; |
| 500 | item1 = XVECTOR (item)->contents[c]; |
| 501 | if (XTYPE (item1) == Lisp_Cons) |
| 502 | { |
| 503 | item_string = XCONS (item1)->car; |
| 504 | if (XTYPE (item_string) == Lisp_String) |
| 505 | { |
| 506 | Lisp_Object def; |
| 507 | |
| 508 | /* These are the saved equivalent keyboard key sequence |
| 509 | and its key-description. */ |
| 510 | Lisp_Object descrip; |
| 511 | Lisp_Object tem, enabled; |
| 512 | |
| 513 | def = menu_item_equiv_key (item_string, item1, &descrip); |
| 514 | |
| 515 | /* GCPRO because we will call eval. |
| 516 | Protecting KEYMAP preserves everything we use; |
| 517 | aside from that, must protect whatever might be |
| 518 | a string. Since there's no GCPRO5, we refetch |
| 519 | item_string instead of protecting it. */ |
| 520 | GCPRO4 (keymap, pending_maps, def, descrip); |
| 521 | enabled = menu_item_enabled_p (def, notreal); |
| 522 | UNGCPRO; |
| 523 | |
| 524 | item_string = XCONS (item1)->car; |
| 525 | |
| 526 | tem = Fkeymapp (def); |
| 527 | if (XSTRING (item_string)->data[0] == '@' && !NILP (tem)) |
| 528 | pending_maps = Fcons (Fcons (def, Fcons (item_string, character)), |
| 529 | pending_maps); |
| 530 | else |
| 531 | { |
| 532 | Lisp_Object submap; |
| 533 | submap = get_keymap_1 (def, 0, 1); |
| 534 | #ifndef USE_X_TOOLKIT |
| 535 | if (!NILP (submap)) |
| 536 | item_string = concat2 (item_string, |
| 537 | build_string (" >")); |
| 538 | #endif |
| 539 | push_menu_item (item_string, enabled, character, |
| 540 | descrip); |
| 541 | #ifdef USE_X_TOOLKIT |
| 542 | if (! NILP (submap)) |
| 543 | { |
| 544 | push_submenu_start (); |
| 545 | single_keymap_panes (submap, Qnil, |
| 546 | character, notreal); |
| 547 | push_submenu_end (); |
| 548 | } |
| 549 | #endif |
| 550 | } |
| 551 | } |
| 552 | } |
| 553 | } |
| 554 | } |
| 555 | } |
| 556 | |
| 557 | /* Process now any submenus which want to be panes at this level. */ |
| 558 | while (!NILP (pending_maps)) |
| 559 | { |
| 560 | Lisp_Object elt, eltcdr, string; |
| 561 | elt = Fcar (pending_maps); |
| 562 | eltcdr = XCONS (elt)->cdr; |
| 563 | string = XCONS (eltcdr)->car; |
| 564 | /* We no longer discard the @ from the beginning of the string here. |
| 565 | Instead, we do this in xmenu_show. */ |
| 566 | single_keymap_panes (Fcar (elt), string, |
| 567 | XCONS (eltcdr)->cdr, notreal); |
| 568 | pending_maps = Fcdr (pending_maps); |
| 569 | } |
| 570 | } |
| 571 | \f |
| 572 | /* Push all the panes and items of a menu decsribed by the |
| 573 | alist-of-alists MENU. |
| 574 | This handles old-fashioned calls to x-popup-menu. */ |
| 575 | |
| 576 | static void |
| 577 | list_of_panes (menu) |
| 578 | Lisp_Object menu; |
| 579 | { |
| 580 | Lisp_Object tail; |
| 581 | |
| 582 | init_menu_items (); |
| 583 | |
| 584 | for (tail = menu; !NILP (tail); tail = Fcdr (tail)) |
| 585 | { |
| 586 | Lisp_Object elt, pane_name, pane_data; |
| 587 | elt = Fcar (tail); |
| 588 | pane_name = Fcar (elt); |
| 589 | CHECK_STRING (pane_name, 0); |
| 590 | push_menu_pane (pane_name, Qnil); |
| 591 | pane_data = Fcdr (elt); |
| 592 | CHECK_CONS (pane_data, 0); |
| 593 | list_of_items (pane_data); |
| 594 | } |
| 595 | |
| 596 | finish_menu_items (); |
| 597 | } |
| 598 | |
| 599 | /* Push the items in a single pane defined by the alist PANE. */ |
| 600 | |
| 601 | static void |
| 602 | list_of_items (pane) |
| 603 | Lisp_Object pane; |
| 604 | { |
| 605 | Lisp_Object tail, item, item1; |
| 606 | |
| 607 | for (tail = pane; !NILP (tail); tail = Fcdr (tail)) |
| 608 | { |
| 609 | item = Fcar (tail); |
| 610 | if (STRINGP (item)) |
| 611 | push_menu_item (item, Qnil, Qnil); |
| 612 | else |
| 613 | { |
| 614 | CHECK_CONS (item, 0); |
| 615 | item1 = Fcar (item); |
| 616 | CHECK_STRING (item1, 1); |
| 617 | push_menu_item (item1, Qt, Fcdr (item), Qnil); |
| 618 | } |
| 619 | } |
| 620 | } |
| 621 | \f |
| 622 | DEFUN ("x-popup-menu", Fx_popup_menu, Sx_popup_menu, 1, 2, 0, |
| 623 | "Pop up a deck-of-cards menu and return user's selection.\n\ |
| 624 | POSITION is a position specification. This is either a mouse button event\n\ |
| 625 | or a list ((XOFFSET YOFFSET) WINDOW)\n\ |
| 626 | where XOFFSET and YOFFSET are positions in characters from the top left\n\ |
| 627 | corner of WINDOW's frame. (WINDOW may be a frame object instead of a window.)\n\ |
| 628 | This controls the position of the center of the first line\n\ |
| 629 | in the first pane of the menu, not the top left of the menu as a whole.\n\ |
| 630 | If POSITION is t, it means to use the current mouse position.\n\ |
| 631 | \n\ |
| 632 | MENU is a specifier for a menu. For the simplest case, MENU is a keymap.\n\ |
| 633 | The menu items come from key bindings that have a menu string as well as\n\ |
| 634 | a definition; actually, the \"definition\" in such a key binding looks like\n\ |
| 635 | \(STRING . REAL-DEFINITION). To give the menu a title, put a string into\n\ |
| 636 | the keymap as a top-level element.\n\n\ |
| 637 | You can also use a list of keymaps as MENU.\n\ |
| 638 | Then each keymap makes a separate pane.\n\ |
| 639 | When MENU is a keymap or a list of keymaps, the return value\n\ |
| 640 | is a list of events.\n\n\ |
| 641 | Alternatively, you can specify a menu of multiple panes\n\ |
| 642 | with a list of the form (TITLE PANE1 PANE2...),\n\ |
| 643 | where each pane is a list of form (TITLE ITEM1 ITEM2...).\n\ |
| 644 | Each ITEM is normally a cons cell (STRING . VALUE);\n\ |
| 645 | but a string can appear as an item--that makes a nonselectable line\n\ |
| 646 | in the menu.\n\ |
| 647 | With this form of menu, the return value is VALUE from the chosen item.\n\ |
| 648 | \n\ |
| 649 | If POSITION is nil, don't display the menu at all, just precalculate the\n\ |
| 650 | cached information about equivalent key sequences.") |
| 651 | (position, menu) |
| 652 | Lisp_Object position, menu; |
| 653 | { |
| 654 | int number_of_panes, panes; |
| 655 | Lisp_Object keymap, tem; |
| 656 | int xpos, ypos; |
| 657 | Lisp_Object title; |
| 658 | char *error_name; |
| 659 | Lisp_Object selection; |
| 660 | int i, j; |
| 661 | FRAME_PTR f; |
| 662 | Lisp_Object x, y, window; |
| 663 | int keymaps = 0; |
| 664 | int menubarp = 0; |
| 665 | struct gcpro gcpro1; |
| 666 | |
| 667 | if (! NILP (position)) |
| 668 | { |
| 669 | check_x (); |
| 670 | |
| 671 | /* Decode the first argument: find the window and the coordinates. */ |
| 672 | if (EQ (position, Qt)) |
| 673 | { |
| 674 | /* Use the mouse's current position. */ |
| 675 | FRAME_PTR new_f; |
| 676 | Lisp_Object bar_window; |
| 677 | int part; |
| 678 | unsigned long time; |
| 679 | |
| 680 | (*mouse_position_hook) (&new_f, &bar_window, &part, &x, &y, &time); |
| 681 | XSET (window, Lisp_Frame, new_f); |
| 682 | } |
| 683 | else |
| 684 | { |
| 685 | tem = Fcar (position); |
| 686 | if (XTYPE (tem) == Lisp_Cons) |
| 687 | { |
| 688 | window = Fcar (Fcdr (position)); |
| 689 | x = Fcar (tem); |
| 690 | y = Fcar (Fcdr (tem)); |
| 691 | } |
| 692 | else |
| 693 | { |
| 694 | tem = Fcar (Fcdr (position)); /* EVENT_START (position) */ |
| 695 | window = Fcar (tem); /* POSN_WINDOW (tem) */ |
| 696 | tem = Fcar (Fcdr (Fcdr (tem))); /* POSN_WINDOW_POSN (tem) */ |
| 697 | x = Fcar (tem); |
| 698 | y = Fcdr (tem); |
| 699 | |
| 700 | /* Determine whether this menu is handling a menu bar click. */ |
| 701 | tem = Fcar (Fcdr (Fcar (Fcdr (position)))); |
| 702 | if (XTYPE (Fcar (position)) != Lisp_Cons |
| 703 | && CONSP (tem) |
| 704 | && EQ (Fcar (tem), Qmenu_bar)) |
| 705 | menubarp = 1; |
| 706 | } |
| 707 | } |
| 708 | |
| 709 | CHECK_NUMBER (x, 0); |
| 710 | CHECK_NUMBER (y, 0); |
| 711 | |
| 712 | /* Decode where to put the menu. */ |
| 713 | |
| 714 | if (XTYPE (window) == Lisp_Frame) |
| 715 | { |
| 716 | f = XFRAME (window); |
| 717 | |
| 718 | xpos = 0; |
| 719 | ypos = 0; |
| 720 | } |
| 721 | else if (XTYPE (window) == Lisp_Window) |
| 722 | { |
| 723 | CHECK_LIVE_WINDOW (window, 0); |
| 724 | f = XFRAME (WINDOW_FRAME (XWINDOW (window))); |
| 725 | |
| 726 | xpos = (FONT_WIDTH (f->display.x->font) * XWINDOW (window)->left); |
| 727 | ypos = (FONT_HEIGHT (f->display.x->font) * XWINDOW (window)->top); |
| 728 | } |
| 729 | else |
| 730 | /* ??? Not really clean; should be CHECK_WINDOW_OR_FRAME, |
| 731 | but I don't want to make one now. */ |
| 732 | CHECK_WINDOW (window, 0); |
| 733 | |
| 734 | xpos += XINT (x); |
| 735 | ypos += XINT (y); |
| 736 | } |
| 737 | |
| 738 | title = Qnil; |
| 739 | GCPRO1 (title); |
| 740 | |
| 741 | /* Decode the menu items from what was specified. */ |
| 742 | |
| 743 | keymap = Fkeymapp (menu); |
| 744 | tem = Qnil; |
| 745 | if (XTYPE (menu) == Lisp_Cons) |
| 746 | tem = Fkeymapp (Fcar (menu)); |
| 747 | if (!NILP (keymap)) |
| 748 | { |
| 749 | /* We were given a keymap. Extract menu info from the keymap. */ |
| 750 | Lisp_Object prompt; |
| 751 | keymap = get_keymap (menu); |
| 752 | |
| 753 | /* Extract the detailed info to make one pane. */ |
| 754 | keymap_panes (&menu, 1, NILP (position)); |
| 755 | |
| 756 | /* Search for a string appearing directly as an element of the keymap. |
| 757 | That string is the title of the menu. */ |
| 758 | prompt = map_prompt (keymap); |
| 759 | |
| 760 | /* Make that be the pane title of the first pane. */ |
| 761 | if (!NILP (prompt) && menu_items_n_panes >= 0) |
| 762 | XVECTOR (menu_items)->contents[MENU_ITEMS_PANE_NAME] = prompt; |
| 763 | |
| 764 | keymaps = 1; |
| 765 | } |
| 766 | else if (!NILP (tem)) |
| 767 | { |
| 768 | /* We were given a list of keymaps. */ |
| 769 | int nmaps = XFASTINT (Flength (menu)); |
| 770 | Lisp_Object *maps |
| 771 | = (Lisp_Object *) alloca (nmaps * sizeof (Lisp_Object)); |
| 772 | int i; |
| 773 | |
| 774 | title = Qnil; |
| 775 | |
| 776 | /* The first keymap that has a prompt string |
| 777 | supplies the menu title. */ |
| 778 | for (tem = menu, i = 0; XTYPE (tem) == Lisp_Cons; tem = Fcdr (tem)) |
| 779 | { |
| 780 | Lisp_Object prompt; |
| 781 | |
| 782 | maps[i++] = keymap = get_keymap (Fcar (tem)); |
| 783 | |
| 784 | prompt = map_prompt (keymap); |
| 785 | if (NILP (title) && !NILP (prompt)) |
| 786 | title = prompt; |
| 787 | } |
| 788 | |
| 789 | /* Extract the detailed info to make one pane. */ |
| 790 | keymap_panes (maps, nmaps, NILP (position)); |
| 791 | |
| 792 | /* Make the title be the pane title of the first pane. */ |
| 793 | if (!NILP (title) && menu_items_n_panes >= 0) |
| 794 | XVECTOR (menu_items)->contents[MENU_ITEMS_PANE_NAME] = title; |
| 795 | |
| 796 | keymaps = 1; |
| 797 | } |
| 798 | else |
| 799 | { |
| 800 | /* We were given an old-fashioned menu. */ |
| 801 | title = Fcar (menu); |
| 802 | CHECK_STRING (title, 1); |
| 803 | |
| 804 | list_of_panes (Fcdr (menu)); |
| 805 | |
| 806 | keymaps = 0; |
| 807 | } |
| 808 | |
| 809 | if (NILP (position)) |
| 810 | { |
| 811 | discard_menu_items (); |
| 812 | UNGCPRO; |
| 813 | return Qnil; |
| 814 | } |
| 815 | |
| 816 | /* Display them in a menu. */ |
| 817 | BLOCK_INPUT; |
| 818 | |
| 819 | selection = xmenu_show (f, xpos, ypos, menubarp, |
| 820 | keymaps, title, &error_name); |
| 821 | UNBLOCK_INPUT; |
| 822 | |
| 823 | discard_menu_items (); |
| 824 | |
| 825 | UNGCPRO; |
| 826 | |
| 827 | if (error_name) error (error_name); |
| 828 | return selection; |
| 829 | } |
| 830 | |
| 831 | DEFUN ("x-popup-dialog", Fx_popup_dialog, Sx_popup_dialog, 1, 2, 0, |
| 832 | "Pop up a dialog box and return user's selection.\n\ |
| 833 | POSITION is a position specification. This is either a mouse button event\n\ |
| 834 | or a list ((XOFFSET YOFFSET) WINDOW)\n\ |
| 835 | where XOFFSET and YOFFSET are positions in characters from the top left\n\ |
| 836 | corner of WINDOW's frame. (WINDOW may be a frame object instead of a window.)\n\ |
| 837 | This controls the position of the center of the first line\n\ |
| 838 | in the first pane of the menu, not the top left of the menu as a whole.\n\ |
| 839 | If POSITION is t, it means to use the current mouse position.\n\ |
| 840 | \n\ |
| 841 | MENU is a specifier for a menu. For the simplest case, MENU is a keymap.\n\ |
| 842 | The menu items come from key bindings that have a menu string as well as\n\ |
| 843 | a definition; actually, the \"definition\" in such a key binding looks like\n\ |
| 844 | \(STRING . REAL-DEFINITION). To give the menu a title, put a string into\n\ |
| 845 | the keymap as a top-level element.\n\n\ |
| 846 | You can also use a list of keymaps as MENU.\n\ |
| 847 | Then each keymap makes a separate pane.\n\ |
| 848 | When MENU is a keymap or a list of keymaps, the return value\n\ |
| 849 | is a list of events.\n\n\ |
| 850 | Alternatively, you can specify a menu of multiple panes\n\ |
| 851 | with a list of the form (TITLE PANE1 PANE2...),\n\ |
| 852 | where each pane is a list of form (TITLE ITEM1 ITEM2...).\n\ |
| 853 | Each ITEM is normally a cons cell (STRING . VALUE);\n\ |
| 854 | but a string can appear as an item--that makes a nonselectable line\n\ |
| 855 | in the menu.\n\ |
| 856 | With this form of menu, the return value is VALUE from the chosen item.\n\ |
| 857 | \n\ |
| 858 | If POSITION is nil, don't display the menu at all, just precalculate the\n\ |
| 859 | cached information about equivalent key sequences.") |
| 860 | (position, menu) |
| 861 | Lisp_Object position, menu; |
| 862 | { |
| 863 | int number_of_panes, panes; |
| 864 | Lisp_Object keymap, tem; |
| 865 | int xpos, ypos; |
| 866 | Lisp_Object title; |
| 867 | char *error_name; |
| 868 | Lisp_Object selection; |
| 869 | int i, j; |
| 870 | FRAME_PTR f; |
| 871 | Lisp_Object x, y, window; |
| 872 | int keymaps = 0; |
| 873 | int menubarp = 0; |
| 874 | struct gcpro gcpro1; |
| 875 | |
| 876 | check_x (); |
| 877 | |
| 878 | if (! NILP (position)) |
| 879 | { |
| 880 | /* Decode the first argument: find the window and the coordinates. */ |
| 881 | if (EQ (position, Qt)) |
| 882 | { |
| 883 | /* Use the mouse's current position. */ |
| 884 | FRAME_PTR new_f; |
| 885 | Lisp_Object bar_window; |
| 886 | int part; |
| 887 | unsigned long time; |
| 888 | |
| 889 | (*mouse_position_hook) (&new_f, &bar_window, &part, &x, &y, &time); |
| 890 | XSET (window, Lisp_Frame, new_f); |
| 891 | } |
| 892 | |
| 893 | CHECK_NUMBER (x, 0); |
| 894 | CHECK_NUMBER (y, 0); |
| 895 | |
| 896 | /* Decode where to put the menu. */ |
| 897 | |
| 898 | if (XTYPE (window) == Lisp_Frame) |
| 899 | { |
| 900 | f = XFRAME (window); |
| 901 | |
| 902 | xpos = 0; |
| 903 | ypos = 0; |
| 904 | } |
| 905 | else if (XTYPE (window) == Lisp_Window) |
| 906 | { |
| 907 | CHECK_LIVE_WINDOW (window, 0); |
| 908 | f = XFRAME (WINDOW_FRAME (XWINDOW (window))); |
| 909 | |
| 910 | xpos = (FONT_WIDTH (f->display.x->font) * XWINDOW (window)->left); |
| 911 | ypos = (FONT_HEIGHT (f->display.x->font) * XWINDOW (window)->top); |
| 912 | } |
| 913 | else |
| 914 | /* ??? Not really clean; should be CHECK_WINDOW_OR_FRAME, |
| 915 | but I don't want to make one now. */ |
| 916 | CHECK_WINDOW (window, 0); |
| 917 | |
| 918 | xpos += XINT (x); |
| 919 | ypos += XINT (y); |
| 920 | } |
| 921 | |
| 922 | title = Qnil; |
| 923 | GCPRO1 (title); |
| 924 | |
| 925 | /* Decode the dialog items from what was specified. */ |
| 926 | { |
| 927 | /* We were given an old-fashioned menu. */ |
| 928 | title = Fcar (menu); |
| 929 | CHECK_STRING (title, 1); |
| 930 | |
| 931 | list_of_panes (Fcdr (menu)); |
| 932 | |
| 933 | keymaps = 0; |
| 934 | } |
| 935 | |
| 936 | if (NILP (position)) |
| 937 | { |
| 938 | discard_menu_items (); |
| 939 | UNGCPRO; |
| 940 | return Qnil; |
| 941 | } |
| 942 | |
| 943 | /* Display them in a dialog box. */ |
| 944 | BLOCK_INPUT; |
| 945 | |
| 946 | selection = xdialog_show (f, xpos, ypos, menubarp, |
| 947 | keymaps, title, &error_name); |
| 948 | UNBLOCK_INPUT; |
| 949 | |
| 950 | discard_menu_items (); |
| 951 | |
| 952 | UNGCPRO; |
| 953 | |
| 954 | if (error_name) error (error_name); |
| 955 | return selection; |
| 956 | } |
| 957 | \f |
| 958 | #ifdef USE_X_TOOLKIT |
| 959 | |
| 960 | static void |
| 961 | dispatch_dummy_expose (w, x, y) |
| 962 | Widget w; |
| 963 | int x; |
| 964 | int y; |
| 965 | { |
| 966 | XExposeEvent dummy; |
| 967 | |
| 968 | dummy.type = Expose; |
| 969 | dummy.window = XtWindow (w); |
| 970 | dummy.count = 0; |
| 971 | dummy.serial = 0; |
| 972 | dummy.send_event = 0; |
| 973 | dummy.display = XtDisplay (w); |
| 974 | dummy.x = x; |
| 975 | dummy.y = y; |
| 976 | |
| 977 | XtDispatchEvent (&dummy); |
| 978 | } |
| 979 | |
| 980 | static int |
| 981 | string_width (mw, s) |
| 982 | XlwMenuWidget mw; |
| 983 | char* s; |
| 984 | { |
| 985 | XCharStruct xcs; |
| 986 | int drop; |
| 987 | |
| 988 | XTextExtents (mw->menu.font, s, strlen (s), &drop, &drop, &drop, &xcs); |
| 989 | return xcs.width; |
| 990 | } |
| 991 | |
| 992 | static int |
| 993 | event_is_in_menu_item (mw, event, name, string_w) |
| 994 | XlwMenuWidget mw; |
| 995 | struct input_event *event; |
| 996 | char *name; |
| 997 | int *string_w; |
| 998 | { |
| 999 | *string_w += (string_width (mw, name) |
| 1000 | + 2 * (mw->menu.horizontal_spacing |
| 1001 | + mw->menu.shadow_thickness)); |
| 1002 | return XINT (event->x) < *string_w; |
| 1003 | } |
| 1004 | |
| 1005 | |
| 1006 | /* Return the menu bar key which corresponds to event EVENT in frame F. */ |
| 1007 | |
| 1008 | Lisp_Object |
| 1009 | map_event_to_object (event, f) |
| 1010 | struct input_event *event; |
| 1011 | FRAME_PTR f; |
| 1012 | { |
| 1013 | int i,j, string_w; |
| 1014 | window_state* ws; |
| 1015 | XlwMenuWidget mw = (XlwMenuWidget) f->display.x->menubar_widget; |
| 1016 | widget_value *val; |
| 1017 | |
| 1018 | |
| 1019 | string_w = 0; |
| 1020 | /* Find the window */ |
| 1021 | for (val = mw->menu.old_stack [0]->contents; val; val = val->next) |
| 1022 | { |
| 1023 | ws = &mw->menu.windows [0]; |
| 1024 | if (ws && event_is_in_menu_item (mw, event, val->name, &string_w)) |
| 1025 | { |
| 1026 | Lisp_Object items; |
| 1027 | int i; |
| 1028 | |
| 1029 | items = FRAME_MENU_BAR_ITEMS (f); |
| 1030 | |
| 1031 | for (i = 0; i < XVECTOR (items)->size; i += 3) |
| 1032 | { |
| 1033 | Lisp_Object pos, string, item; |
| 1034 | item = XVECTOR (items)->contents[i]; |
| 1035 | string = XVECTOR (items)->contents[i + 1]; |
| 1036 | pos = XVECTOR (items)->contents[i + 2]; |
| 1037 | if (NILP (string)) |
| 1038 | break; |
| 1039 | |
| 1040 | if (!strcmp (val->name, XSTRING (string)->data)) |
| 1041 | return item; |
| 1042 | } |
| 1043 | } |
| 1044 | } |
| 1045 | return Qnil; |
| 1046 | } |
| 1047 | |
| 1048 | static Lisp_Object *menu_item_selection; |
| 1049 | |
| 1050 | static void |
| 1051 | popup_selection_callback (widget, id, client_data) |
| 1052 | Widget widget; |
| 1053 | LWLIB_ID id; |
| 1054 | XtPointer client_data; |
| 1055 | { |
| 1056 | menu_item_selection = (Lisp_Object *) client_data; |
| 1057 | } |
| 1058 | |
| 1059 | static void |
| 1060 | popup_down_callback (widget, id, client_data) |
| 1061 | Widget widget; |
| 1062 | LWLIB_ID id; |
| 1063 | XtPointer client_data; |
| 1064 | { |
| 1065 | BLOCK_INPUT; |
| 1066 | lw_destroy_all_widgets (id); |
| 1067 | UNBLOCK_INPUT; |
| 1068 | } |
| 1069 | |
| 1070 | static void |
| 1071 | dialog_selection_callback (widget, id, client_data) |
| 1072 | Widget widget; |
| 1073 | LWLIB_ID id; |
| 1074 | XtPointer client_data; |
| 1075 | { |
| 1076 | if ((int)client_data != -1) |
| 1077 | menu_item_selection = (Lisp_Object *) client_data; |
| 1078 | BLOCK_INPUT; |
| 1079 | lw_destroy_all_widgets (id); |
| 1080 | UNBLOCK_INPUT; |
| 1081 | } |
| 1082 | |
| 1083 | /* This recursively calls free_widget_value() on the tree of widgets. |
| 1084 | It must free all data that was malloc'ed for these widget_values. |
| 1085 | In Emacs, many slots are pointers into the data of Lisp_Strings, and |
| 1086 | must be left alone. */ |
| 1087 | |
| 1088 | void |
| 1089 | free_menubar_widget_value_tree (wv) |
| 1090 | widget_value *wv; |
| 1091 | { |
| 1092 | if (! wv) return; |
| 1093 | |
| 1094 | wv->name = wv->value = wv->key = (char *) 0xDEADBEEF; |
| 1095 | |
| 1096 | if (wv->contents && (wv->contents != (widget_value*)1)) |
| 1097 | { |
| 1098 | free_menubar_widget_value_tree (wv->contents); |
| 1099 | wv->contents = (widget_value *) 0xDEADBEEF; |
| 1100 | } |
| 1101 | if (wv->next) |
| 1102 | { |
| 1103 | free_menubar_widget_value_tree (wv->next); |
| 1104 | wv->next = (widget_value *) 0xDEADBEEF; |
| 1105 | } |
| 1106 | BLOCK_INPUT; |
| 1107 | free_widget_value (wv); |
| 1108 | UNBLOCK_INPUT; |
| 1109 | } |
| 1110 | |
| 1111 | extern void EmacsFrameSetCharSize (); |
| 1112 | |
| 1113 | static void |
| 1114 | update_one_frame_psheets (f) |
| 1115 | FRAME_PTR f; |
| 1116 | { |
| 1117 | struct x_display *x = f->display.x; |
| 1118 | int columns, rows; |
| 1119 | int menubar_changed; |
| 1120 | |
| 1121 | menubar_changed = (x->menubar_widget |
| 1122 | && !XtIsManaged (x->menubar_widget)); |
| 1123 | |
| 1124 | if (! (menubar_changed)) |
| 1125 | return; |
| 1126 | |
| 1127 | BLOCK_INPUT; |
| 1128 | /* Save the size of the frame because the pane widget doesn't accept to |
| 1129 | resize itself. So force it. */ |
| 1130 | columns = f->width; |
| 1131 | rows = f->height; |
| 1132 | |
| 1133 | |
| 1134 | XawPanedSetRefigureMode (x->column_widget, 0); |
| 1135 | |
| 1136 | /* the order in which children are managed is the top to |
| 1137 | bottom order in which they are displayed in the paned window. |
| 1138 | First, remove the text-area widget. |
| 1139 | */ |
| 1140 | XtUnmanageChild (x->edit_widget); |
| 1141 | |
| 1142 | /* remove the menubar that is there now, and put up the menubar that |
| 1143 | should be there. |
| 1144 | */ |
| 1145 | if (menubar_changed) |
| 1146 | { |
| 1147 | XtManageChild (x->menubar_widget); |
| 1148 | XtMapWidget (x->menubar_widget); |
| 1149 | XtVaSetValues (x->menubar_widget, XtNmappedWhenManaged, 1, 0); |
| 1150 | } |
| 1151 | |
| 1152 | |
| 1153 | /* Re-manage the text-area widget */ |
| 1154 | XtManageChild (x->edit_widget); |
| 1155 | |
| 1156 | /* and now thrash the sizes */ |
| 1157 | XawPanedSetRefigureMode (x->column_widget, 1); |
| 1158 | |
| 1159 | /* Force the pane widget to resize itself with the right values. */ |
| 1160 | EmacsFrameSetCharSize (x->edit_widget, columns, rows); |
| 1161 | |
| 1162 | UNBLOCK_INPUT; |
| 1163 | } |
| 1164 | |
| 1165 | void |
| 1166 | set_frame_menubar (f) |
| 1167 | FRAME_PTR f; |
| 1168 | { |
| 1169 | Widget menubar_widget = f->display.x->menubar_widget; |
| 1170 | int id = (int) f; |
| 1171 | Lisp_Object tail, items; |
| 1172 | widget_value *wv, *save_wv, *first_wv, *prev_wv = 0; |
| 1173 | int i; |
| 1174 | |
| 1175 | BLOCK_INPUT; |
| 1176 | |
| 1177 | wv = malloc_widget_value (); |
| 1178 | wv->name = "menubar"; |
| 1179 | wv->value = 0; |
| 1180 | wv->enabled = 1; |
| 1181 | save_wv = first_wv = wv; |
| 1182 | |
| 1183 | items = FRAME_MENU_BAR_ITEMS (f); |
| 1184 | |
| 1185 | for (i = 0; i < XVECTOR (items)->size; i += 3) |
| 1186 | { |
| 1187 | Lisp_Object string; |
| 1188 | |
| 1189 | string = XVECTOR (items)->contents[i + 1]; |
| 1190 | if (NILP (string)) |
| 1191 | break; |
| 1192 | |
| 1193 | wv = malloc_widget_value (); |
| 1194 | if (prev_wv) |
| 1195 | prev_wv->next = wv; |
| 1196 | else |
| 1197 | save_wv->contents = wv; |
| 1198 | wv->name = XSTRING (string)->data; |
| 1199 | wv->value = 0; |
| 1200 | wv->enabled = 1; |
| 1201 | prev_wv = wv; |
| 1202 | } |
| 1203 | |
| 1204 | if (menubar_widget) |
| 1205 | lw_modify_all_widgets (id, first_wv, False); |
| 1206 | else |
| 1207 | { |
| 1208 | menubar_widget = lw_create_widget ("menubar", "menubar", |
| 1209 | id, first_wv, |
| 1210 | f->display.x->column_widget, |
| 1211 | 0, 0, |
| 1212 | 0, 0); |
| 1213 | f->display.x->menubar_widget = menubar_widget; |
| 1214 | XtVaSetValues (menubar_widget, |
| 1215 | XtNshowGrip, 0, |
| 1216 | XtNresizeToPreferred, 1, |
| 1217 | XtNallowResize, 1, |
| 1218 | 0); |
| 1219 | } |
| 1220 | |
| 1221 | free_menubar_widget_value_tree (first_wv); |
| 1222 | |
| 1223 | update_one_frame_psheets (f); |
| 1224 | |
| 1225 | UNBLOCK_INPUT; |
| 1226 | } |
| 1227 | |
| 1228 | void |
| 1229 | free_frame_menubar (f) |
| 1230 | FRAME_PTR f; |
| 1231 | { |
| 1232 | Widget menubar_widget; |
| 1233 | int id; |
| 1234 | |
| 1235 | menubar_widget = f->display.x->menubar_widget; |
| 1236 | id = (int) f; |
| 1237 | |
| 1238 | if (menubar_widget) |
| 1239 | { |
| 1240 | BLOCK_INPUT; |
| 1241 | lw_destroy_all_widgets (id); |
| 1242 | UNBLOCK_INPUT; |
| 1243 | } |
| 1244 | } |
| 1245 | \f |
| 1246 | /* Nonzero if position X, Y relative to inside of frame F |
| 1247 | is in some other menu bar item. */ |
| 1248 | |
| 1249 | static int this_menu_bar_item_beg; |
| 1250 | static int this_menu_bar_item_end; |
| 1251 | |
| 1252 | static int |
| 1253 | other_menu_bar_item_p (f, x, y) |
| 1254 | FRAME_PTR f; |
| 1255 | int x, y; |
| 1256 | { |
| 1257 | return (y >= 0 |
| 1258 | && y < f->display.x->menubar_widget->core.height |
| 1259 | && x >= 0 |
| 1260 | && x < f->display.x->menubar_widget->core.width |
| 1261 | && (x >= this_menu_bar_item_end |
| 1262 | || x < this_menu_bar_item_beg)); |
| 1263 | } |
| 1264 | |
| 1265 | /* Unread a button-press event in the menu bar of frame F |
| 1266 | at x position XPOS relative to the inside of the frame. */ |
| 1267 | |
| 1268 | static void |
| 1269 | unread_menu_bar_button (f, xpos) |
| 1270 | FRAME_PTR f; |
| 1271 | int xpos; |
| 1272 | { |
| 1273 | XEvent event; |
| 1274 | |
| 1275 | event.type = ButtonPress; |
| 1276 | event.xbutton.display = x_current_display; |
| 1277 | event.xbutton.serial = 0; |
| 1278 | event.xbutton.send_event = 0; |
| 1279 | event.xbutton.time = CurrentTime; |
| 1280 | event.xbutton.button = Button1; |
| 1281 | event.xbutton.window = XtWindow (f->display.x->menubar_widget); |
| 1282 | event.xbutton.x = xpos; |
| 1283 | XPutBackEvent (XDISPLAY &event); |
| 1284 | } |
| 1285 | |
| 1286 | /* If the mouse has moved to another menu bar item, |
| 1287 | return 1 and unread a button press event for that item. |
| 1288 | Otherwise return 0. */ |
| 1289 | |
| 1290 | static int |
| 1291 | check_mouse_other_menu_bar (f) |
| 1292 | FRAME_PTR f; |
| 1293 | { |
| 1294 | FRAME_PTR new_f; |
| 1295 | Lisp_Object bar_window; |
| 1296 | int part; |
| 1297 | Lisp_Object x, y; |
| 1298 | unsigned long time; |
| 1299 | |
| 1300 | (*mouse_position_hook) (&new_f, &bar_window, &part, &x, &y, &time); |
| 1301 | |
| 1302 | if (f == new_f && other_menu_bar_item_p (f, x, y)) |
| 1303 | { |
| 1304 | unread_menu_bar_button (f, x); |
| 1305 | return 1; |
| 1306 | } |
| 1307 | |
| 1308 | return 0; |
| 1309 | } |
| 1310 | #endif /* USE_X_TOOLKIT */ |
| 1311 | \f |
| 1312 | /* xmenu_show actually displays a menu using the panes and items in menu_items |
| 1313 | and returns the value selected from it. |
| 1314 | There are two versions of xmenu_show, one for Xt and one for Xlib. |
| 1315 | Both assume input is blocked by the caller. */ |
| 1316 | |
| 1317 | /* F is the frame the menu is for. |
| 1318 | X and Y are the frame-relative specified position, |
| 1319 | relative to the inside upper left corner of the frame F. |
| 1320 | MENUBARP is 1 if the click that asked for this menu came from the menu bar. |
| 1321 | KEYMAPS is 1 if this menu was specified with keymaps; |
| 1322 | in that case, we return a list containing the chosen item's value |
| 1323 | and perhaps also the pane's prefix. |
| 1324 | TITLE is the specified menu title. |
| 1325 | ERROR is a place to store an error message string in case of failure. |
| 1326 | (We return nil on failure, but the value doesn't actually matter.) */ |
| 1327 | |
| 1328 | #ifdef USE_X_TOOLKIT |
| 1329 | |
| 1330 | extern unsigned int x_mouse_grabbed; |
| 1331 | extern Lisp_Object Vmouse_depressed; |
| 1332 | |
| 1333 | static Lisp_Object |
| 1334 | xmenu_show (f, x, y, menubarp, keymaps, title, error) |
| 1335 | FRAME_PTR f; |
| 1336 | int x; |
| 1337 | int y; |
| 1338 | int menubarp; |
| 1339 | int keymaps; |
| 1340 | Lisp_Object title; |
| 1341 | char **error; |
| 1342 | { |
| 1343 | int i; |
| 1344 | int menu_id; |
| 1345 | Widget menu; |
| 1346 | XlwMenuWidget menubar = (XlwMenuWidget) f->display.x->menubar_widget; |
| 1347 | |
| 1348 | /* This is the menu bar item (if any) that led to this menu. */ |
| 1349 | widget_value *menubar_item = 0; |
| 1350 | |
| 1351 | widget_value *wv, *save_wv = 0, *first_wv = 0, *prev_wv = 0; |
| 1352 | widget_value **submenu_stack |
| 1353 | = (widget_value **) alloca (menu_items_used * sizeof (widget_value *)); |
| 1354 | Lisp_Object *subprefix_stack |
| 1355 | = (Lisp_Object *) alloca (menu_items_used * sizeof (Lisp_Object)); |
| 1356 | int submenu_depth = 0; |
| 1357 | |
| 1358 | /* Define a queue to save up for later unreading |
| 1359 | all X events that don't pertain to the menu. */ |
| 1360 | struct event_queue |
| 1361 | { |
| 1362 | XEvent event; |
| 1363 | struct event_queue *next; |
| 1364 | }; |
| 1365 | |
| 1366 | struct event_queue *queue = NULL; |
| 1367 | struct event_queue *queue_tmp; |
| 1368 | |
| 1369 | *error = NULL; |
| 1370 | |
| 1371 | this_menu_bar_item_beg = -1; |
| 1372 | this_menu_bar_item_end = -1; |
| 1373 | |
| 1374 | /* Figure out which menu bar item, if any, this menu is for. */ |
| 1375 | if (menubarp) |
| 1376 | { |
| 1377 | int xbeg; |
| 1378 | int xend = 0; |
| 1379 | |
| 1380 | for (menubar_item = menubar->menu.old_stack[0]->contents; |
| 1381 | menubar_item; |
| 1382 | menubar_item = menubar_item->next) |
| 1383 | { |
| 1384 | xbeg = xend; |
| 1385 | xend += (string_width (menubar, menubar_item->name) |
| 1386 | + 2 * (menubar->menu.horizontal_spacing |
| 1387 | + menubar->menu.shadow_thickness)); |
| 1388 | if (x < xend) |
| 1389 | { |
| 1390 | x = xbeg + 4; |
| 1391 | y = 0; |
| 1392 | /* Arrange to show a different menu if we move in the menu bar |
| 1393 | to a different item. */ |
| 1394 | this_menu_bar_item_beg = xbeg; |
| 1395 | this_menu_bar_item_end = xend; |
| 1396 | break; |
| 1397 | } |
| 1398 | } |
| 1399 | } |
| 1400 | if (menubar_item == 0) |
| 1401 | menubarp = 0; |
| 1402 | |
| 1403 | /* Offset the coordinates to root-relative. */ |
| 1404 | x += (f->display.x->widget->core.x |
| 1405 | + f->display.x->widget->core.border_width); |
| 1406 | y += (f->display.x->widget->core.y |
| 1407 | + f->display.x->widget->core.border_width |
| 1408 | + f->display.x->menubar_widget->core.height); |
| 1409 | |
| 1410 | /* Create a tree of widget_value objects |
| 1411 | representing the panes and their items. */ |
| 1412 | wv = malloc_widget_value (); |
| 1413 | wv->name = "menu"; |
| 1414 | wv->value = 0; |
| 1415 | wv->enabled = 1; |
| 1416 | first_wv = wv; |
| 1417 | |
| 1418 | /* Loop over all panes and items, filling in the tree. */ |
| 1419 | i = 0; |
| 1420 | while (i < menu_items_used) |
| 1421 | { |
| 1422 | if (EQ (XVECTOR (menu_items)->contents[i], Qnil)) |
| 1423 | { |
| 1424 | submenu_stack[submenu_depth++] = save_wv; |
| 1425 | save_wv = prev_wv; |
| 1426 | prev_wv = 0; |
| 1427 | i++; |
| 1428 | } |
| 1429 | else if (EQ (XVECTOR (menu_items)->contents[i], Qlambda)) |
| 1430 | { |
| 1431 | prev_wv = save_wv; |
| 1432 | save_wv = submenu_stack[--submenu_depth]; |
| 1433 | i++; |
| 1434 | } |
| 1435 | else if (EQ (XVECTOR (menu_items)->contents[i], Qt) |
| 1436 | && submenu_depth != 0) |
| 1437 | i += MENU_ITEMS_PANE_LENGTH; |
| 1438 | else if (EQ (XVECTOR (menu_items)->contents[i], Qt)) |
| 1439 | { |
| 1440 | /* Create a new pane. */ |
| 1441 | Lisp_Object pane_name, prefix; |
| 1442 | char *pane_string; |
| 1443 | pane_name = XVECTOR (menu_items)->contents[i + MENU_ITEMS_PANE_NAME]; |
| 1444 | prefix = XVECTOR (menu_items)->contents[i + MENU_ITEMS_PANE_PREFIX]; |
| 1445 | pane_string = (NILP (pane_name) |
| 1446 | ? "" : (char *) XSTRING (pane_name)->data); |
| 1447 | /* If there is just one top-level pane, put all its items directly |
| 1448 | under the top-level menu. */ |
| 1449 | if (menu_items_n_panes == 1) |
| 1450 | pane_string = ""; |
| 1451 | |
| 1452 | /* If the pane has a meaningful name, |
| 1453 | make the pane a top-level menu item |
| 1454 | with its items as a submenu beneath it. */ |
| 1455 | if (strcmp (pane_string, "")) |
| 1456 | { |
| 1457 | wv = malloc_widget_value (); |
| 1458 | if (save_wv) |
| 1459 | save_wv->next = wv; |
| 1460 | else |
| 1461 | first_wv->contents = wv; |
| 1462 | wv->name = pane_string; |
| 1463 | if (keymaps && !NILP (prefix)) |
| 1464 | wv->name++; |
| 1465 | wv->value = 0; |
| 1466 | wv->enabled = 1; |
| 1467 | } |
| 1468 | save_wv = wv; |
| 1469 | prev_wv = 0; |
| 1470 | i += MENU_ITEMS_PANE_LENGTH; |
| 1471 | } |
| 1472 | else |
| 1473 | { |
| 1474 | /* Create a new item within current pane. */ |
| 1475 | Lisp_Object item_name, enable, descrip; |
| 1476 | item_name = XVECTOR (menu_items)->contents[i + MENU_ITEMS_ITEM_NAME]; |
| 1477 | enable = XVECTOR (menu_items)->contents[i + MENU_ITEMS_ITEM_ENABLE]; |
| 1478 | descrip |
| 1479 | = XVECTOR (menu_items)->contents[i + MENU_ITEMS_ITEM_EQUIV_KEY]; |
| 1480 | |
| 1481 | wv = malloc_widget_value (); |
| 1482 | if (prev_wv) |
| 1483 | prev_wv->next = wv; |
| 1484 | else |
| 1485 | save_wv->contents = wv; |
| 1486 | wv->name = XSTRING (item_name)->data; |
| 1487 | if (!NILP (descrip)) |
| 1488 | wv->key = XSTRING (descrip)->data; |
| 1489 | wv->value = 0; |
| 1490 | wv->call_data = (void *) &XVECTOR (menu_items)->contents[i]; |
| 1491 | wv->enabled = !NILP (enable); |
| 1492 | prev_wv = wv; |
| 1493 | |
| 1494 | i += MENU_ITEMS_ITEM_LENGTH; |
| 1495 | } |
| 1496 | } |
| 1497 | |
| 1498 | /* Actually create the menu. */ |
| 1499 | menu_id = ++popup_id_tick; |
| 1500 | menu = lw_create_widget ("popup", first_wv->name, menu_id, first_wv, |
| 1501 | f->display.x->widget, 1, 0, |
| 1502 | popup_selection_callback, popup_down_callback); |
| 1503 | /* Free the widget_value objects we used to specify the contents. */ |
| 1504 | free_menubar_widget_value_tree (first_wv); |
| 1505 | |
| 1506 | /* No selection has been chosen yet. */ |
| 1507 | menu_item_selection = 0; |
| 1508 | |
| 1509 | /* If the mouse moves out of the menu before we show the menu, |
| 1510 | don't show it at all. */ |
| 1511 | if (check_mouse_other_menu_bar (f)) |
| 1512 | { |
| 1513 | lw_destroy_all_widgets (menu_id); |
| 1514 | return Qnil; |
| 1515 | } |
| 1516 | |
| 1517 | |
| 1518 | /* Highlight the menu bar item (if any) that led to this menu. */ |
| 1519 | if (menubarp) |
| 1520 | { |
| 1521 | menubar_item->call_data = (XtPointer) 1; |
| 1522 | dispatch_dummy_expose (f->display.x->menubar_widget, x, y); |
| 1523 | } |
| 1524 | |
| 1525 | /* Display the menu. */ |
| 1526 | { |
| 1527 | XButtonPressedEvent dummy; |
| 1528 | XlwMenuWidget mw; |
| 1529 | |
| 1530 | mw = (XlwMenuWidget) ((CompositeWidget)menu)->composite.children[0]; |
| 1531 | |
| 1532 | dummy.type = ButtonPress; |
| 1533 | dummy.serial = 0; |
| 1534 | dummy.send_event = 0; |
| 1535 | dummy.display = XtDisplay (menu); |
| 1536 | dummy.window = XtWindow (XtParent (menu)); |
| 1537 | dummy.time = CurrentTime; |
| 1538 | dummy.button = 0; |
| 1539 | dummy.x_root = x; |
| 1540 | dummy.y_root = y; |
| 1541 | |
| 1542 | /* We activate directly the lucid implementation. */ |
| 1543 | pop_up_menu (mw, &dummy); |
| 1544 | } |
| 1545 | |
| 1546 | /* No need to check a second time since this is done in the XEvent loop. |
| 1547 | This slows done the execution. */ |
| 1548 | #if 0 |
| 1549 | /* Check again whether the mouse has moved to another menu bar item. */ |
| 1550 | if (check_mouse_other_menu_bar (f)) |
| 1551 | { |
| 1552 | /* The mouse moved into a different menu bar item. |
| 1553 | We should bring up that item's menu instead. |
| 1554 | First pop down this menu. */ |
| 1555 | XtUngrabPointer ((Widget) |
| 1556 | ((XlwMenuWidget) |
| 1557 | ((CompositeWidget)menu)->composite.children[0]), |
| 1558 | CurrentTime); |
| 1559 | lw_destroy_all_widgets (menu_id); |
| 1560 | goto pop_down; |
| 1561 | } |
| 1562 | #endif |
| 1563 | |
| 1564 | /* Process events that apply to the menu. */ |
| 1565 | while (1) |
| 1566 | { |
| 1567 | XEvent event; |
| 1568 | |
| 1569 | XtAppNextEvent (Xt_app_con, &event); |
| 1570 | if (event.type == ButtonRelease) |
| 1571 | { |
| 1572 | XtDispatchEvent (&event); |
| 1573 | if (! menubarp) |
| 1574 | { |
| 1575 | /* Do the work of construct_mouse_click since it can't |
| 1576 | be called. Initially, the popup menu has been called |
| 1577 | from a ButtonPress in the edit_widget. Then the mouse |
| 1578 | has been set to grabbed. Reset it now. */ |
| 1579 | x_mouse_grabbed &= ~(1 << event.xbutton.button); |
| 1580 | if (!x_mouse_grabbed) |
| 1581 | Vmouse_depressed = Qnil; |
| 1582 | } |
| 1583 | break; |
| 1584 | } |
| 1585 | else if (event.type == Expose) |
| 1586 | process_expose_from_menu (event); |
| 1587 | else if (event.type == MotionNotify) |
| 1588 | { |
| 1589 | int event_x = (event.xmotion.x_root |
| 1590 | - (f->display.x->widget->core.x |
| 1591 | + f->display.x->widget->core.border_width)); |
| 1592 | int event_y = (event.xmotion.y_root |
| 1593 | - (f->display.x->widget->core.y |
| 1594 | + f->display.x->widget->core.border_width)); |
| 1595 | |
| 1596 | if (other_menu_bar_item_p (f, event_x, event_y)) |
| 1597 | { |
| 1598 | /* The mouse moved into a different menu bar item. |
| 1599 | We should bring up that item's menu instead. |
| 1600 | First pop down this menu. */ |
| 1601 | XtUngrabPointer ((Widget) |
| 1602 | ((XlwMenuWidget) |
| 1603 | ((CompositeWidget)menu)->composite.children[0]), |
| 1604 | event.xbutton.time); |
| 1605 | lw_destroy_all_widgets (menu_id); |
| 1606 | |
| 1607 | /* Put back an event that will bring up the other item's menu. */ |
| 1608 | unread_menu_bar_button (f, event_x); |
| 1609 | /* Don't let us select anything in this case. */ |
| 1610 | menu_item_selection = 0; |
| 1611 | break; |
| 1612 | } |
| 1613 | } |
| 1614 | |
| 1615 | XtDispatchEvent (&event); |
| 1616 | if (XtWindowToWidget(XDISPLAY event.xany.window) != menu) |
| 1617 | { |
| 1618 | queue_tmp |
| 1619 | = (struct event_queue *) malloc (sizeof (struct event_queue)); |
| 1620 | |
| 1621 | if (queue_tmp != NULL) |
| 1622 | { |
| 1623 | queue_tmp->event = event; |
| 1624 | queue_tmp->next = queue; |
| 1625 | queue = queue_tmp; |
| 1626 | } |
| 1627 | } |
| 1628 | } |
| 1629 | |
| 1630 | pop_down: |
| 1631 | /* Unhighlight the menu bar item (if any) that led to this menu. */ |
| 1632 | if (menubarp) |
| 1633 | { |
| 1634 | menubar_item->call_data = (XtPointer) 0; |
| 1635 | dispatch_dummy_expose (f->display.x->menubar_widget, x, y); |
| 1636 | } |
| 1637 | |
| 1638 | #if 0 /* No need to do that. The menu has disappeared. */ |
| 1639 | /* Make sure the menu disappears. */ |
| 1640 | lw_destroy_all_widgets (menu_id); |
| 1641 | #endif |
| 1642 | |
| 1643 | /* Unread any events that we got but did not handle. */ |
| 1644 | while (queue != NULL) |
| 1645 | { |
| 1646 | queue_tmp = queue; |
| 1647 | XPutBackEvent (XDISPLAY &queue_tmp->event); |
| 1648 | queue = queue_tmp->next; |
| 1649 | free ((char *)queue_tmp); |
| 1650 | } |
| 1651 | |
| 1652 | /* Find the selected item, and its pane, to return |
| 1653 | the proper value. */ |
| 1654 | if (menu_item_selection != 0) |
| 1655 | { |
| 1656 | Lisp_Object prefix; |
| 1657 | |
| 1658 | prefix = Qnil; |
| 1659 | i = 0; |
| 1660 | while (i < menu_items_used) |
| 1661 | { |
| 1662 | Lisp_Object entry; |
| 1663 | |
| 1664 | if (EQ (XVECTOR (menu_items)->contents[i], Qnil)) |
| 1665 | { |
| 1666 | subprefix_stack[submenu_depth++] = prefix; |
| 1667 | prefix = entry; |
| 1668 | i++; |
| 1669 | } |
| 1670 | else if (EQ (XVECTOR (menu_items)->contents[i], Qlambda)) |
| 1671 | { |
| 1672 | prefix = subprefix_stack[--submenu_depth]; |
| 1673 | i++; |
| 1674 | } |
| 1675 | else if (EQ (XVECTOR (menu_items)->contents[i], Qt)) |
| 1676 | { |
| 1677 | prefix |
| 1678 | = XVECTOR (menu_items)->contents[i + MENU_ITEMS_PANE_PREFIX]; |
| 1679 | i += MENU_ITEMS_PANE_LENGTH; |
| 1680 | } |
| 1681 | else |
| 1682 | { |
| 1683 | entry |
| 1684 | = XVECTOR (menu_items)->contents[i + MENU_ITEMS_ITEM_VALUE]; |
| 1685 | if (menu_item_selection == &XVECTOR (menu_items)->contents[i]) |
| 1686 | { |
| 1687 | if (keymaps != 0) |
| 1688 | { |
| 1689 | int j; |
| 1690 | |
| 1691 | entry = Fcons (entry, Qnil); |
| 1692 | if (!NILP (prefix)) |
| 1693 | entry = Fcons (prefix, entry); |
| 1694 | for (j = submenu_depth - 1; j >= 0; j--) |
| 1695 | entry = Fcons (subprefix_stack[j], entry); |
| 1696 | } |
| 1697 | return entry; |
| 1698 | } |
| 1699 | i += MENU_ITEMS_ITEM_LENGTH; |
| 1700 | } |
| 1701 | } |
| 1702 | } |
| 1703 | |
| 1704 | return Qnil; |
| 1705 | } |
| 1706 | |
| 1707 | static char * button_names [] = { |
| 1708 | "button1", "button2", "button3", "button4", "button5", |
| 1709 | "button6", "button7", "button8", "button9", "button10" }; |
| 1710 | |
| 1711 | static Lisp_Object |
| 1712 | xdialog_show (f, x, y, menubarp, keymaps, title, error) |
| 1713 | FRAME_PTR f; |
| 1714 | int x; |
| 1715 | int y; |
| 1716 | int menubarp; |
| 1717 | int keymaps; |
| 1718 | Lisp_Object title; |
| 1719 | char **error; |
| 1720 | { |
| 1721 | int i, nb_buttons=0; |
| 1722 | int dialog_id; |
| 1723 | Widget menu; |
| 1724 | XlwMenuWidget menubar = (XlwMenuWidget) f->display.x->menubar_widget; |
| 1725 | |
| 1726 | /* This is the menu bar item (if any) that led to this menu. */ |
| 1727 | widget_value *menubar_item = 0; |
| 1728 | |
| 1729 | widget_value *wv, *save_wv = 0, *first_wv = 0, *prev_wv = 0; |
| 1730 | |
| 1731 | /* Define a queue to save up for later unreading |
| 1732 | all X events that don't pertain to the menu. */ |
| 1733 | struct event_queue |
| 1734 | { |
| 1735 | XEvent event; |
| 1736 | struct event_queue *next; |
| 1737 | }; |
| 1738 | |
| 1739 | struct event_queue *queue = NULL; |
| 1740 | struct event_queue *queue_tmp; |
| 1741 | |
| 1742 | *error = NULL; |
| 1743 | |
| 1744 | /* Create a tree of widget_value objects |
| 1745 | representing the text label and buttons. */ |
| 1746 | { |
| 1747 | Lisp_Object pane_name, prefix; |
| 1748 | char *pane_string; |
| 1749 | pane_name = XVECTOR (menu_items)->contents[MENU_ITEMS_PANE_NAME]; |
| 1750 | prefix = XVECTOR (menu_items)->contents[MENU_ITEMS_PANE_PREFIX]; |
| 1751 | pane_string = (NILP (pane_name) |
| 1752 | ? "" : (char *) XSTRING (pane_name)->data); |
| 1753 | prev_wv = malloc_widget_value (); |
| 1754 | prev_wv->value = pane_string; |
| 1755 | if (keymaps && !NILP (prefix)) |
| 1756 | prev_wv->name++; |
| 1757 | prev_wv->enabled = 1; |
| 1758 | prev_wv->name = "message"; |
| 1759 | first_wv = prev_wv; |
| 1760 | |
| 1761 | /* Loop over all panes and items, filling in the tree. */ |
| 1762 | i = MENU_ITEMS_PANE_LENGTH; |
| 1763 | while (i < menu_items_used) |
| 1764 | { |
| 1765 | |
| 1766 | /* Create a new item within current pane. */ |
| 1767 | Lisp_Object item_name, enable, descrip; |
| 1768 | item_name = XVECTOR (menu_items)->contents[i + MENU_ITEMS_ITEM_NAME]; |
| 1769 | enable = XVECTOR (menu_items)->contents[i + MENU_ITEMS_ITEM_ENABLE]; |
| 1770 | descrip |
| 1771 | = XVECTOR (menu_items)->contents[i + MENU_ITEMS_ITEM_EQUIV_KEY]; |
| 1772 | |
| 1773 | wv = malloc_widget_value (); |
| 1774 | prev_wv->next = wv; |
| 1775 | wv->name = (char *) button_names [nb_buttons]; |
| 1776 | if (!NILP (descrip)) |
| 1777 | wv->key = XSTRING (descrip)->data; |
| 1778 | wv->value = XSTRING (item_name)->data; |
| 1779 | wv->call_data = (void *) &XVECTOR (menu_items)->contents[i]; |
| 1780 | wv->enabled = !NILP (enable); |
| 1781 | prev_wv = wv; |
| 1782 | |
| 1783 | nb_buttons++; |
| 1784 | i += MENU_ITEMS_ITEM_LENGTH; |
| 1785 | } |
| 1786 | |
| 1787 | wv = malloc_widget_value (); |
| 1788 | wv->name = "Q2BR1"; |
| 1789 | wv->contents = first_wv; |
| 1790 | first_wv = wv; |
| 1791 | |
| 1792 | } |
| 1793 | |
| 1794 | /* Actually create the dialog. */ |
| 1795 | dialog_id = ++popup_id_tick; |
| 1796 | menu = lw_create_widget (first_wv->name, "dialog", dialog_id, first_wv, |
| 1797 | f->display.x->widget, 1, 0, |
| 1798 | dialog_selection_callback, 0); |
| 1799 | lw_modify_all_widgets (dialog_id, first_wv, True); |
| 1800 | lw_modify_all_widgets (dialog_id, first_wv->contents, True); |
| 1801 | /* Free the widget_value objects we used to specify the contents. */ |
| 1802 | free_menubar_widget_value_tree (first_wv); |
| 1803 | |
| 1804 | /* No selection has been chosen yet. */ |
| 1805 | menu_item_selection = 0; |
| 1806 | |
| 1807 | |
| 1808 | /* Display the menu. */ |
| 1809 | lw_pop_up_all_widgets (dialog_id); |
| 1810 | |
| 1811 | /* Process events that apply to the menu. */ |
| 1812 | while (1) |
| 1813 | { |
| 1814 | XEvent event; |
| 1815 | |
| 1816 | XtAppNextEvent (Xt_app_con, &event); |
| 1817 | if (event.type == ButtonRelease) |
| 1818 | { |
| 1819 | XtDispatchEvent (&event); |
| 1820 | break; |
| 1821 | } |
| 1822 | else if (event.type == Expose) |
| 1823 | process_expose_from_menu (event); |
| 1824 | XtDispatchEvent (&event); |
| 1825 | if (XtWindowToWidget(XDISPLAY event.xany.window) != menu) |
| 1826 | { |
| 1827 | queue_tmp = (struct event_queue *) malloc (sizeof (struct event_queue)); |
| 1828 | |
| 1829 | if (queue_tmp != NULL) |
| 1830 | { |
| 1831 | queue_tmp->event = event; |
| 1832 | queue_tmp->next = queue; |
| 1833 | queue = queue_tmp; |
| 1834 | } |
| 1835 | } |
| 1836 | } |
| 1837 | pop_down: |
| 1838 | |
| 1839 | /* Unread any events that we got but did not handle. */ |
| 1840 | while (queue != NULL) |
| 1841 | { |
| 1842 | queue_tmp = queue; |
| 1843 | XPutBackEvent (XDISPLAY &queue_tmp->event); |
| 1844 | queue = queue_tmp->next; |
| 1845 | free ((char *)queue_tmp); |
| 1846 | } |
| 1847 | |
| 1848 | /* Find the selected item, and its pane, to return |
| 1849 | the proper value. */ |
| 1850 | if (menu_item_selection != 0) |
| 1851 | { |
| 1852 | Lisp_Object prefix; |
| 1853 | |
| 1854 | prefix = Qnil; |
| 1855 | i = 0; |
| 1856 | while (i < menu_items_used) |
| 1857 | { |
| 1858 | Lisp_Object entry; |
| 1859 | |
| 1860 | if (EQ (XVECTOR (menu_items)->contents[i], Qt)) |
| 1861 | { |
| 1862 | prefix |
| 1863 | = XVECTOR (menu_items)->contents[i + MENU_ITEMS_PANE_PREFIX]; |
| 1864 | i += MENU_ITEMS_PANE_LENGTH; |
| 1865 | } |
| 1866 | else |
| 1867 | { |
| 1868 | entry |
| 1869 | = XVECTOR (menu_items)->contents[i + MENU_ITEMS_ITEM_VALUE]; |
| 1870 | if (menu_item_selection == &XVECTOR (menu_items)->contents[i]) |
| 1871 | { |
| 1872 | if (keymaps != 0) |
| 1873 | { |
| 1874 | entry = Fcons (entry, Qnil); |
| 1875 | if (!NILP (prefix)) |
| 1876 | entry = Fcons (prefix, entry); |
| 1877 | } |
| 1878 | return entry; |
| 1879 | } |
| 1880 | i += MENU_ITEMS_ITEM_LENGTH; |
| 1881 | } |
| 1882 | } |
| 1883 | } |
| 1884 | |
| 1885 | return Qnil; |
| 1886 | } |
| 1887 | #else /* not USE_X_TOOLKIT */ |
| 1888 | |
| 1889 | static Lisp_Object |
| 1890 | xmenu_show (f, x, y, menubarp, keymaps, title, error) |
| 1891 | FRAME_PTR f; |
| 1892 | int x, y; |
| 1893 | int keymaps; |
| 1894 | int menubarp; |
| 1895 | Lisp_Object title; |
| 1896 | char **error; |
| 1897 | { |
| 1898 | Window root; |
| 1899 | XMenu *menu; |
| 1900 | int pane, selidx, lpane, status; |
| 1901 | Lisp_Object entry, pane_prefix; |
| 1902 | char *datap; |
| 1903 | int ulx, uly, width, height; |
| 1904 | int dispwidth, dispheight; |
| 1905 | int i; |
| 1906 | int dummy_int; |
| 1907 | unsigned int dummy_uint; |
| 1908 | |
| 1909 | *error = 0; |
| 1910 | if (menu_items_n_panes == 0) |
| 1911 | return Qnil; |
| 1912 | |
| 1913 | /* Figure out which root window F is on. */ |
| 1914 | XGetGeometry (x_current_display, FRAME_X_WINDOW (f), &root, |
| 1915 | &dummy_int, &dummy_int, &dummy_uint, &dummy_uint, |
| 1916 | &dummy_uint, &dummy_uint); |
| 1917 | |
| 1918 | /* Make the menu on that window. */ |
| 1919 | menu = XMenuCreate (XDISPLAY root, "emacs"); |
| 1920 | if (menu == NULL) |
| 1921 | { |
| 1922 | *error = "Can't create menu"; |
| 1923 | return Qnil; |
| 1924 | } |
| 1925 | |
| 1926 | /* Adjust coordinates to relative to the outer (window manager) window. */ |
| 1927 | #ifdef HAVE_X11 |
| 1928 | { |
| 1929 | Window child; |
| 1930 | int win_x = 0, win_y = 0; |
| 1931 | |
| 1932 | /* Find the position of the outside upper-left corner of |
| 1933 | the inner window, with respect to the outer window. */ |
| 1934 | if (f->display.x->parent_desc != ROOT_WINDOW) |
| 1935 | { |
| 1936 | BLOCK_INPUT; |
| 1937 | XTranslateCoordinates (x_current_display, |
| 1938 | |
| 1939 | /* From-window, to-window. */ |
| 1940 | f->display.x->window_desc, |
| 1941 | f->display.x->parent_desc, |
| 1942 | |
| 1943 | /* From-position, to-position. */ |
| 1944 | 0, 0, &win_x, &win_y, |
| 1945 | |
| 1946 | /* Child of window. */ |
| 1947 | &child); |
| 1948 | UNBLOCK_INPUT; |
| 1949 | x += win_x; |
| 1950 | y += win_y; |
| 1951 | } |
| 1952 | } |
| 1953 | #endif /* HAVE_X11 */ |
| 1954 | |
| 1955 | /* Adjust coordinates to be root-window-relative. */ |
| 1956 | x += f->display.x->left_pos; |
| 1957 | y += f->display.x->top_pos; |
| 1958 | |
| 1959 | /* Create all the necessary panes and their items. */ |
| 1960 | i = 0; |
| 1961 | while (i < menu_items_used) |
| 1962 | { |
| 1963 | if (EQ (XVECTOR (menu_items)->contents[i], Qt)) |
| 1964 | { |
| 1965 | /* Create a new pane. */ |
| 1966 | Lisp_Object pane_name, prefix; |
| 1967 | char *pane_string; |
| 1968 | |
| 1969 | pane_name = XVECTOR (menu_items)->contents[i + MENU_ITEMS_PANE_NAME]; |
| 1970 | prefix = XVECTOR (menu_items)->contents[i + MENU_ITEMS_PANE_PREFIX]; |
| 1971 | pane_string = (NILP (pane_name) |
| 1972 | ? "" : (char *) XSTRING (pane_name)->data); |
| 1973 | if (keymaps && !NILP (prefix)) |
| 1974 | pane_string++; |
| 1975 | |
| 1976 | lpane = XMenuAddPane (XDISPLAY menu, pane_string, TRUE); |
| 1977 | if (lpane == XM_FAILURE) |
| 1978 | { |
| 1979 | XMenuDestroy (XDISPLAY menu); |
| 1980 | *error = "Can't create pane"; |
| 1981 | return Qnil; |
| 1982 | } |
| 1983 | i += MENU_ITEMS_PANE_LENGTH; |
| 1984 | } |
| 1985 | else |
| 1986 | { |
| 1987 | /* Create a new item within current pane. */ |
| 1988 | Lisp_Object item_name, enable, descrip; |
| 1989 | |
| 1990 | item_name = XVECTOR (menu_items)->contents[i + MENU_ITEMS_ITEM_NAME]; |
| 1991 | enable = XVECTOR (menu_items)->contents[i + MENU_ITEMS_ITEM_ENABLE]; |
| 1992 | descrip |
| 1993 | = XVECTOR (menu_items)->contents[i + MENU_ITEMS_ITEM_EQUIV_KEY]; |
| 1994 | if (!NILP (descrip)) |
| 1995 | item_name = concat2 (item_name, descrip); |
| 1996 | |
| 1997 | if (XMenuAddSelection (XDISPLAY menu, lpane, 0, |
| 1998 | XSTRING (item_name)->data, |
| 1999 | !NILP (enable)) |
| 2000 | == XM_FAILURE) |
| 2001 | { |
| 2002 | XMenuDestroy (XDISPLAY menu); |
| 2003 | *error = "Can't add selection to menu"; |
| 2004 | return Qnil; |
| 2005 | } |
| 2006 | i += MENU_ITEMS_ITEM_LENGTH; |
| 2007 | } |
| 2008 | } |
| 2009 | |
| 2010 | /* All set and ready to fly. */ |
| 2011 | XMenuRecompute (XDISPLAY menu); |
| 2012 | dispwidth = DisplayWidth (x_current_display, XDefaultScreen (x_current_display)); |
| 2013 | dispheight = DisplayHeight (x_current_display, XDefaultScreen (x_current_display)); |
| 2014 | x = min (x, dispwidth); |
| 2015 | y = min (y, dispheight); |
| 2016 | x = max (x, 1); |
| 2017 | y = max (y, 1); |
| 2018 | XMenuLocate (XDISPLAY menu, 0, 0, x, y, |
| 2019 | &ulx, &uly, &width, &height); |
| 2020 | if (ulx+width > dispwidth) |
| 2021 | { |
| 2022 | x -= (ulx + width) - dispwidth; |
| 2023 | ulx = dispwidth - width; |
| 2024 | } |
| 2025 | if (uly+height > dispheight) |
| 2026 | { |
| 2027 | y -= (uly + height) - dispheight; |
| 2028 | uly = dispheight - height; |
| 2029 | } |
| 2030 | if (ulx < 0) x -= ulx; |
| 2031 | if (uly < 0) y -= uly; |
| 2032 | |
| 2033 | XMenuSetFreeze (menu, TRUE); |
| 2034 | pane = selidx = 0; |
| 2035 | |
| 2036 | status = XMenuActivate (XDISPLAY menu, &pane, &selidx, |
| 2037 | x, y, ButtonReleaseMask, &datap); |
| 2038 | switch (status) |
| 2039 | { |
| 2040 | case XM_SUCCESS: |
| 2041 | #ifdef XDEBUG |
| 2042 | fprintf (stderr, "pane= %d line = %d\n", panes, selidx); |
| 2043 | #endif |
| 2044 | |
| 2045 | /* Find the item number SELIDX in pane number PANE. */ |
| 2046 | i = 0; |
| 2047 | while (i < menu_items_used) |
| 2048 | { |
| 2049 | if (EQ (XVECTOR (menu_items)->contents[i], Qt)) |
| 2050 | { |
| 2051 | if (pane == 0) |
| 2052 | pane_prefix |
| 2053 | = XVECTOR (menu_items)->contents[i + MENU_ITEMS_PANE_PREFIX]; |
| 2054 | pane--; |
| 2055 | i += MENU_ITEMS_PANE_LENGTH; |
| 2056 | } |
| 2057 | else |
| 2058 | { |
| 2059 | if (pane == -1) |
| 2060 | { |
| 2061 | if (selidx == 0) |
| 2062 | { |
| 2063 | entry |
| 2064 | = XVECTOR (menu_items)->contents[i + MENU_ITEMS_ITEM_VALUE]; |
| 2065 | if (keymaps != 0) |
| 2066 | { |
| 2067 | entry = Fcons (entry, Qnil); |
| 2068 | if (!NILP (pane_prefix)) |
| 2069 | entry = Fcons (pane_prefix, entry); |
| 2070 | } |
| 2071 | break; |
| 2072 | } |
| 2073 | selidx--; |
| 2074 | } |
| 2075 | i += MENU_ITEMS_ITEM_LENGTH; |
| 2076 | } |
| 2077 | } |
| 2078 | break; |
| 2079 | |
| 2080 | case XM_FAILURE: |
| 2081 | XMenuDestroy (XDISPLAY menu); |
| 2082 | *error = "Can't activate menu"; |
| 2083 | case XM_IA_SELECT: |
| 2084 | case XM_NO_SELECT: |
| 2085 | entry = Qnil; |
| 2086 | break; |
| 2087 | } |
| 2088 | XMenuDestroy (XDISPLAY menu); |
| 2089 | return entry; |
| 2090 | } |
| 2091 | #endif /* not USE_X_TOOLKIT */ |
| 2092 | \f |
| 2093 | syms_of_xmenu () |
| 2094 | { |
| 2095 | staticpro (&menu_items); |
| 2096 | menu_items = Qnil; |
| 2097 | |
| 2098 | popup_id_tick = (1<<16); |
| 2099 | defsubr (&Sx_popup_menu); |
| 2100 | defsubr (&Sx_popup_dialog); |
| 2101 | } |