| 1 | /* X Communication module for terminals which understand the X protocol. |
| 2 | Copyright (C) 1986, 1988, 1993, 1994, 1996 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, Inc., 59 Temple Place - Suite 330, |
| 19 | Boston, MA 02111-1307, USA. */ |
| 20 | |
| 21 | /* X pop-up deck-of-cards menu facility for gnuemacs. |
| 22 | * |
| 23 | * Written by Jon Arnold and Roman Budzianowski |
| 24 | * Mods and rewrite by Robert Krawitz |
| 25 | * |
| 26 | */ |
| 27 | |
| 28 | /* Modified by Fred Pierresteguy on December 93 |
| 29 | to make the popup menus and menubar use the Xt. */ |
| 30 | |
| 31 | /* Rewritten for clarity and GC protection by rms in Feb 94. */ |
| 32 | |
| 33 | /* On 4.3 this loses if it comes after xterm.h. */ |
| 34 | #include <signal.h> |
| 35 | #include <config.h> |
| 36 | |
| 37 | #include <stdio.h> |
| 38 | #include "lisp.h" |
| 39 | #include "termhooks.h" |
| 40 | #include "frame.h" |
| 41 | #include "window.h" |
| 42 | #include "keyboard.h" |
| 43 | #include "blockinput.h" |
| 44 | #include "buffer.h" |
| 45 | |
| 46 | #ifdef MSDOS |
| 47 | #include "msdos.h" |
| 48 | #endif |
| 49 | |
| 50 | #ifdef HAVE_X_WINDOWS |
| 51 | /* This may include sys/types.h, and that somehow loses |
| 52 | if this is not done before the other system files. */ |
| 53 | #include "xterm.h" |
| 54 | #endif |
| 55 | |
| 56 | /* Load sys/types.h if not already loaded. |
| 57 | In some systems loading it twice is suicidal. */ |
| 58 | #ifndef makedev |
| 59 | #include <sys/types.h> |
| 60 | #endif |
| 61 | |
| 62 | #include "dispextern.h" |
| 63 | |
| 64 | #ifdef HAVE_X_WINDOWS |
| 65 | #ifdef USE_X_TOOLKIT |
| 66 | #include <X11/Xlib.h> |
| 67 | #include <X11/IntrinsicP.h> |
| 68 | #include <X11/CoreP.h> |
| 69 | #include <X11/StringDefs.h> |
| 70 | #include <X11/Shell.h> |
| 71 | #ifdef USE_LUCID |
| 72 | #include <X11/Xaw/Paned.h> |
| 73 | #endif /* USE_LUCID */ |
| 74 | #include "../lwlib/lwlib.h" |
| 75 | #else /* not USE_X_TOOLKIT */ |
| 76 | #include "../oldXMenu/XMenu.h" |
| 77 | #endif /* not USE_X_TOOLKIT */ |
| 78 | #endif /* HAVE_X_WINDOWS */ |
| 79 | |
| 80 | #define min(x,y) (((x) < (y)) ? (x) : (y)) |
| 81 | #define max(x,y) (((x) > (y)) ? (x) : (y)) |
| 82 | |
| 83 | #ifndef TRUE |
| 84 | #define TRUE 1 |
| 85 | #define FALSE 0 |
| 86 | #endif /* no TRUE */ |
| 87 | |
| 88 | Lisp_Object Vmenu_updating_frame; |
| 89 | |
| 90 | Lisp_Object Qdebug_on_next_call; |
| 91 | |
| 92 | extern Lisp_Object Qmenu_bar; |
| 93 | extern Lisp_Object Qmouse_click, Qevent_kind; |
| 94 | |
| 95 | extern Lisp_Object QCtoggle, QCradio; |
| 96 | |
| 97 | extern Lisp_Object Voverriding_local_map; |
| 98 | extern Lisp_Object Voverriding_local_map_menu_flag; |
| 99 | |
| 100 | extern Lisp_Object Qoverriding_local_map, Qoverriding_terminal_local_map; |
| 101 | |
| 102 | extern Lisp_Object Qmenu_bar_update_hook; |
| 103 | |
| 104 | #ifdef USE_X_TOOLKIT |
| 105 | extern void set_frame_menubar (); |
| 106 | extern void process_expose_from_menu (); |
| 107 | extern XtAppContext Xt_app_con; |
| 108 | |
| 109 | static Lisp_Object xdialog_show (); |
| 110 | void popup_get_selection (); |
| 111 | #endif |
| 112 | |
| 113 | static Lisp_Object xmenu_show (); |
| 114 | static void keymap_panes (); |
| 115 | static void single_keymap_panes (); |
| 116 | static void single_menu_item (); |
| 117 | static void list_of_panes (); |
| 118 | static void list_of_items (); |
| 119 | \f |
| 120 | /* This holds a Lisp vector that holds the results of decoding |
| 121 | the keymaps or alist-of-alists that specify a menu. |
| 122 | |
| 123 | It describes the panes and items within the panes. |
| 124 | |
| 125 | Each pane is described by 3 elements in the vector: |
| 126 | t, the pane name, the pane's prefix key. |
| 127 | Then follow the pane's items, with 5 elements per item: |
| 128 | the item string, the enable flag, the item's value, |
| 129 | the definition, and the equivalent keyboard key's description string. |
| 130 | |
| 131 | In some cases, multiple levels of menus may be described. |
| 132 | A single vector slot containing nil indicates the start of a submenu. |
| 133 | A single vector slot containing lambda indicates the end of a submenu. |
| 134 | The submenu follows a menu item which is the way to reach the submenu. |
| 135 | |
| 136 | A single vector slot containing quote indicates that the |
| 137 | following items should appear on the right of a dialog box. |
| 138 | |
| 139 | Using a Lisp vector to hold this information while we decode it |
| 140 | takes care of protecting all the data from GC. */ |
| 141 | |
| 142 | #define MENU_ITEMS_PANE_NAME 1 |
| 143 | #define MENU_ITEMS_PANE_PREFIX 2 |
| 144 | #define MENU_ITEMS_PANE_LENGTH 3 |
| 145 | |
| 146 | #define MENU_ITEMS_ITEM_NAME 0 |
| 147 | #define MENU_ITEMS_ITEM_ENABLE 1 |
| 148 | #define MENU_ITEMS_ITEM_VALUE 2 |
| 149 | #define MENU_ITEMS_ITEM_EQUIV_KEY 3 |
| 150 | #define MENU_ITEMS_ITEM_DEFINITION 4 |
| 151 | #define MENU_ITEMS_ITEM_LENGTH 5 |
| 152 | |
| 153 | static Lisp_Object menu_items; |
| 154 | |
| 155 | /* Number of slots currently allocated in menu_items. */ |
| 156 | static int menu_items_allocated; |
| 157 | |
| 158 | /* This is the index in menu_items of the first empty slot. */ |
| 159 | static int menu_items_used; |
| 160 | |
| 161 | /* The number of panes currently recorded in menu_items, |
| 162 | excluding those within submenus. */ |
| 163 | static int menu_items_n_panes; |
| 164 | |
| 165 | /* Current depth within submenus. */ |
| 166 | static int menu_items_submenu_depth; |
| 167 | |
| 168 | /* Flag which when set indicates a dialog or menu has been posted by |
| 169 | Xt on behalf of one of the widget sets. */ |
| 170 | static int popup_activated_flag; |
| 171 | |
| 172 | static int next_menubar_widget_id; |
| 173 | |
| 174 | /* This is set nonzero after the user activates the menu bar, and set |
| 175 | to zero again after the menu bars are redisplayed by prepare_menu_bar. |
| 176 | While it is nonzero, all calls to set_frame_menubar go deep. |
| 177 | |
| 178 | I don't understand why this is needed, but it does seem to be |
| 179 | needed on Motif, according to Marcus Daniels <marcus@sysc.pdx.edu>. */ |
| 180 | |
| 181 | int pending_menu_activation; |
| 182 | \f |
| 183 | #ifdef USE_X_TOOLKIT |
| 184 | |
| 185 | /* Return the frame whose ->output_data.x->id equals ID, or 0 if none. */ |
| 186 | |
| 187 | static struct frame * |
| 188 | menubar_id_to_frame (id) |
| 189 | LWLIB_ID id; |
| 190 | { |
| 191 | Lisp_Object tail, frame; |
| 192 | FRAME_PTR f; |
| 193 | |
| 194 | for (tail = Vframe_list; GC_CONSP (tail); tail = XCONS (tail)->cdr) |
| 195 | { |
| 196 | frame = XCONS (tail)->car; |
| 197 | if (!GC_FRAMEP (frame)) |
| 198 | continue; |
| 199 | f = XFRAME (frame); |
| 200 | if (f->output_data.nothing == 1) |
| 201 | continue; |
| 202 | if (f->output_data.x->id == id) |
| 203 | return f; |
| 204 | } |
| 205 | return 0; |
| 206 | } |
| 207 | |
| 208 | #endif |
| 209 | \f |
| 210 | /* Initialize the menu_items structure if we haven't already done so. |
| 211 | Also mark it as currently empty. */ |
| 212 | |
| 213 | static void |
| 214 | init_menu_items () |
| 215 | { |
| 216 | if (NILP (menu_items)) |
| 217 | { |
| 218 | menu_items_allocated = 60; |
| 219 | menu_items = Fmake_vector (make_number (menu_items_allocated), Qnil); |
| 220 | } |
| 221 | |
| 222 | menu_items_used = 0; |
| 223 | menu_items_n_panes = 0; |
| 224 | menu_items_submenu_depth = 0; |
| 225 | } |
| 226 | |
| 227 | /* Call at the end of generating the data in menu_items. |
| 228 | This fills in the number of items in the last pane. */ |
| 229 | |
| 230 | static void |
| 231 | finish_menu_items () |
| 232 | { |
| 233 | } |
| 234 | |
| 235 | /* Call when finished using the data for the current menu |
| 236 | in menu_items. */ |
| 237 | |
| 238 | static void |
| 239 | discard_menu_items () |
| 240 | { |
| 241 | /* Free the structure if it is especially large. |
| 242 | Otherwise, hold on to it, to save time. */ |
| 243 | if (menu_items_allocated > 200) |
| 244 | { |
| 245 | menu_items = Qnil; |
| 246 | menu_items_allocated = 0; |
| 247 | } |
| 248 | } |
| 249 | |
| 250 | /* Make the menu_items vector twice as large. */ |
| 251 | |
| 252 | static void |
| 253 | grow_menu_items () |
| 254 | { |
| 255 | Lisp_Object old; |
| 256 | int old_size = menu_items_allocated; |
| 257 | old = menu_items; |
| 258 | |
| 259 | menu_items_allocated *= 2; |
| 260 | menu_items = Fmake_vector (make_number (menu_items_allocated), Qnil); |
| 261 | bcopy (XVECTOR (old)->contents, XVECTOR (menu_items)->contents, |
| 262 | old_size * sizeof (Lisp_Object)); |
| 263 | } |
| 264 | |
| 265 | /* Begin a submenu. */ |
| 266 | |
| 267 | static void |
| 268 | push_submenu_start () |
| 269 | { |
| 270 | if (menu_items_used + 1 > menu_items_allocated) |
| 271 | grow_menu_items (); |
| 272 | |
| 273 | XVECTOR (menu_items)->contents[menu_items_used++] = Qnil; |
| 274 | menu_items_submenu_depth++; |
| 275 | } |
| 276 | |
| 277 | /* End a submenu. */ |
| 278 | |
| 279 | static void |
| 280 | push_submenu_end () |
| 281 | { |
| 282 | if (menu_items_used + 1 > menu_items_allocated) |
| 283 | grow_menu_items (); |
| 284 | |
| 285 | XVECTOR (menu_items)->contents[menu_items_used++] = Qlambda; |
| 286 | menu_items_submenu_depth--; |
| 287 | } |
| 288 | |
| 289 | /* Indicate boundary between left and right. */ |
| 290 | |
| 291 | static void |
| 292 | push_left_right_boundary () |
| 293 | { |
| 294 | if (menu_items_used + 1 > menu_items_allocated) |
| 295 | grow_menu_items (); |
| 296 | |
| 297 | XVECTOR (menu_items)->contents[menu_items_used++] = Qquote; |
| 298 | } |
| 299 | |
| 300 | /* Start a new menu pane in menu_items.. |
| 301 | NAME is the pane name. PREFIX_VEC is a prefix key for this pane. */ |
| 302 | |
| 303 | static void |
| 304 | push_menu_pane (name, prefix_vec) |
| 305 | Lisp_Object name, prefix_vec; |
| 306 | { |
| 307 | if (menu_items_used + MENU_ITEMS_PANE_LENGTH > menu_items_allocated) |
| 308 | grow_menu_items (); |
| 309 | |
| 310 | if (menu_items_submenu_depth == 0) |
| 311 | menu_items_n_panes++; |
| 312 | XVECTOR (menu_items)->contents[menu_items_used++] = Qt; |
| 313 | XVECTOR (menu_items)->contents[menu_items_used++] = name; |
| 314 | XVECTOR (menu_items)->contents[menu_items_used++] = prefix_vec; |
| 315 | } |
| 316 | |
| 317 | /* Push one menu item into the current pane. |
| 318 | NAME is the string to display. ENABLE if non-nil means |
| 319 | this item can be selected. KEY is the key generated by |
| 320 | choosing this item, or nil if this item doesn't really have a definition. |
| 321 | DEF is the definition of this item. |
| 322 | EQUIV is the textual description of the keyboard equivalent for |
| 323 | this item (or nil if none). */ |
| 324 | |
| 325 | static void |
| 326 | push_menu_item (name, enable, key, def, equiv) |
| 327 | Lisp_Object name, enable, key, def, equiv; |
| 328 | { |
| 329 | if (menu_items_used + MENU_ITEMS_ITEM_LENGTH > menu_items_allocated) |
| 330 | grow_menu_items (); |
| 331 | |
| 332 | XVECTOR (menu_items)->contents[menu_items_used++] = name; |
| 333 | XVECTOR (menu_items)->contents[menu_items_used++] = enable; |
| 334 | XVECTOR (menu_items)->contents[menu_items_used++] = key; |
| 335 | XVECTOR (menu_items)->contents[menu_items_used++] = equiv; |
| 336 | XVECTOR (menu_items)->contents[menu_items_used++] = def; |
| 337 | } |
| 338 | \f |
| 339 | /* Look through KEYMAPS, a vector of keymaps that is NMAPS long, |
| 340 | and generate menu panes for them in menu_items. |
| 341 | If NOTREAL is nonzero, |
| 342 | don't bother really computing whether an item is enabled. */ |
| 343 | |
| 344 | static void |
| 345 | keymap_panes (keymaps, nmaps, notreal) |
| 346 | Lisp_Object *keymaps; |
| 347 | int nmaps; |
| 348 | int notreal; |
| 349 | { |
| 350 | int mapno; |
| 351 | |
| 352 | init_menu_items (); |
| 353 | |
| 354 | /* Loop over the given keymaps, making a pane for each map. |
| 355 | But don't make a pane that is empty--ignore that map instead. |
| 356 | P is the number of panes we have made so far. */ |
| 357 | for (mapno = 0; mapno < nmaps; mapno++) |
| 358 | single_keymap_panes (keymaps[mapno], Qnil, Qnil, notreal, 10); |
| 359 | |
| 360 | finish_menu_items (); |
| 361 | } |
| 362 | |
| 363 | /* This is a recursive subroutine of keymap_panes. |
| 364 | It handles one keymap, KEYMAP. |
| 365 | The other arguments are passed along |
| 366 | or point to local variables of the previous function. |
| 367 | If NOTREAL is nonzero, only check for equivalent key bindings, don't |
| 368 | evaluate expressions in menu items and don't make any menu. |
| 369 | |
| 370 | If we encounter submenus deeper than MAXDEPTH levels, ignore them. */ |
| 371 | |
| 372 | static void |
| 373 | single_keymap_panes (keymap, pane_name, prefix, notreal, maxdepth) |
| 374 | Lisp_Object keymap; |
| 375 | Lisp_Object pane_name; |
| 376 | Lisp_Object prefix; |
| 377 | int notreal; |
| 378 | int maxdepth; |
| 379 | { |
| 380 | Lisp_Object pending_maps = Qnil; |
| 381 | Lisp_Object tail, item; |
| 382 | struct gcpro gcpro1, gcpro2; |
| 383 | int notbuttons = 0; |
| 384 | |
| 385 | if (maxdepth <= 0) |
| 386 | return; |
| 387 | |
| 388 | push_menu_pane (pane_name, prefix); |
| 389 | |
| 390 | #ifndef HAVE_BOXES |
| 391 | /* Remember index for first item in this pane so we can go back and |
| 392 | add a prefix when (if) we see the first button. After that, notbuttons |
| 393 | is set to 0, to mark that we have seen a button and all non button |
| 394 | items need a prefix. */ |
| 395 | notbuttons = menu_items_used; |
| 396 | #endif |
| 397 | |
| 398 | for (tail = keymap; CONSP (tail); tail = XCONS (tail)->cdr) |
| 399 | { |
| 400 | GCPRO2 (keymap, pending_maps); |
| 401 | /* Look at each key binding, and if it is a menu item add it |
| 402 | to this menu. */ |
| 403 | item = XCONS (tail)->car; |
| 404 | if (CONSP (item)) |
| 405 | single_menu_item (XCONS (item)->car, XCONS (item)->cdr, |
| 406 | &pending_maps, notreal, maxdepth, ¬buttons); |
| 407 | else if (VECTORP (item)) |
| 408 | { |
| 409 | /* Loop over the char values represented in the vector. */ |
| 410 | int len = XVECTOR (item)->size; |
| 411 | int c; |
| 412 | for (c = 0; c < len; c++) |
| 413 | { |
| 414 | Lisp_Object character; |
| 415 | XSETFASTINT (character, c); |
| 416 | single_menu_item (character, XVECTOR (item)->contents[c], |
| 417 | &pending_maps, notreal, maxdepth, ¬buttons); |
| 418 | } |
| 419 | } |
| 420 | UNGCPRO; |
| 421 | } |
| 422 | |
| 423 | /* Process now any submenus which want to be panes at this level. */ |
| 424 | while (!NILP (pending_maps)) |
| 425 | { |
| 426 | Lisp_Object elt, eltcdr, string; |
| 427 | elt = Fcar (pending_maps); |
| 428 | eltcdr = XCONS (elt)->cdr; |
| 429 | string = XCONS (eltcdr)->car; |
| 430 | /* We no longer discard the @ from the beginning of the string here. |
| 431 | Instead, we do this in xmenu_show. */ |
| 432 | single_keymap_panes (Fcar (elt), string, |
| 433 | XCONS (eltcdr)->cdr, notreal, maxdepth - 1); |
| 434 | pending_maps = Fcdr (pending_maps); |
| 435 | } |
| 436 | } |
| 437 | \f |
| 438 | /* This is a subroutine of single_keymap_panes that handles one |
| 439 | keymap entry. |
| 440 | KEY is a key in a keymap and ITEM is its binding. |
| 441 | PENDING_MAPS_PTR points to a list of keymaps waiting to be made into |
| 442 | separate panes. |
| 443 | If NOTREAL is nonzero, only check for equivalent key bindings, don't |
| 444 | evaluate expressions in menu items and don't make any menu. |
| 445 | If we encounter submenus deeper than MAXDEPTH levels, ignore them. |
| 446 | NOTBUTTONS_PTR is only used when simulating toggle boxes and radio |
| 447 | buttons. It points to variable notbuttons in single_keymap_panes, |
| 448 | which keeps track of if we have seen a button in this menu or not. */ |
| 449 | |
| 450 | static void |
| 451 | single_menu_item (key, item, pending_maps_ptr, notreal, maxdepth, |
| 452 | notbuttons_ptr) |
| 453 | Lisp_Object key, item; |
| 454 | Lisp_Object *pending_maps_ptr; |
| 455 | int maxdepth, notreal; |
| 456 | int *notbuttons_ptr; |
| 457 | { |
| 458 | Lisp_Object def, map, item_string, enabled; |
| 459 | struct gcpro gcpro1, gcpro2; |
| 460 | int res; |
| 461 | |
| 462 | /* Parse the menu item and leave the result in item_properties. */ |
| 463 | GCPRO2 (key, item); |
| 464 | res = parse_menu_item (item, notreal, 0); |
| 465 | UNGCPRO; |
| 466 | if (!res) |
| 467 | return; /* Not a menu item. */ |
| 468 | |
| 469 | map = XVECTOR (item_properties)->contents[ITEM_PROPERTY_MAP]; |
| 470 | |
| 471 | if (notreal) |
| 472 | { |
| 473 | /* We don't want to make a menu, just traverse the keymaps to |
| 474 | precompute equivalent key bindings. */ |
| 475 | if (!NILP (map)) |
| 476 | single_keymap_panes (map, Qnil, key, 1, maxdepth - 1); |
| 477 | return; |
| 478 | } |
| 479 | |
| 480 | enabled = XVECTOR (item_properties)->contents[ITEM_PROPERTY_ENABLE]; |
| 481 | item_string = XVECTOR (item_properties)->contents[ITEM_PROPERTY_NAME]; |
| 482 | |
| 483 | if (!NILP (map) && XSTRING (item_string)->data[0] == '@') |
| 484 | { |
| 485 | if (!NILP (enabled)) |
| 486 | /* An enabled separate pane. Remember this to handle it later. */ |
| 487 | *pending_maps_ptr = Fcons (Fcons (map, Fcons (item_string, key)), |
| 488 | *pending_maps_ptr); |
| 489 | return; |
| 490 | } |
| 491 | |
| 492 | #ifndef HAVE_BOXES |
| 493 | /* Simulate radio buttons and toggle boxes by putting a prefix in |
| 494 | front of them. */ |
| 495 | { |
| 496 | Lisp_Object prefix = Qnil; |
| 497 | Lisp_Object type = XVECTOR (item_properties)->contents[ITEM_PROPERTY_TYPE]; |
| 498 | if (!NILP (type)) |
| 499 | { |
| 500 | Lisp_Object selected |
| 501 | = XVECTOR (item_properties)->contents[ITEM_PROPERTY_SELECTED]; |
| 502 | |
| 503 | if (*notbuttons_ptr) |
| 504 | /* The first button. Line up previous items in this menu. */ |
| 505 | { |
| 506 | int index = *notbuttons_ptr; /* Index for first item this menu. */ |
| 507 | int submenu = 0; |
| 508 | Lisp_Object tem; |
| 509 | while (index < menu_items_used) |
| 510 | { |
| 511 | tem |
| 512 | = XVECTOR (menu_items)->contents[index + MENU_ITEMS_ITEM_NAME]; |
| 513 | if (NILP (tem)) |
| 514 | { |
| 515 | index++; |
| 516 | submenu++; /* Skip sub menu. */ |
| 517 | } |
| 518 | else if (EQ (tem, Qlambda)) |
| 519 | { |
| 520 | index++; |
| 521 | submenu--; /* End sub menu. */ |
| 522 | } |
| 523 | else if (EQ (tem, Qt)) |
| 524 | index += 3; /* Skip new pane marker. */ |
| 525 | else if (EQ (tem, Qquote)) |
| 526 | index++; /* Skip a left, right divider. */ |
| 527 | else |
| 528 | { |
| 529 | if (!submenu && XSTRING (tem)->data[0] != '\0' |
| 530 | && XSTRING (tem)->data[0] != '-') |
| 531 | XVECTOR (menu_items)->contents[index + MENU_ITEMS_ITEM_NAME] |
| 532 | = concat2 (build_string (" "), tem); |
| 533 | index += MENU_ITEMS_ITEM_LENGTH; |
| 534 | } |
| 535 | } |
| 536 | *notbuttons_ptr = 0; |
| 537 | } |
| 538 | |
| 539 | /* Calculate prefix, if any, for this item. */ |
| 540 | if (EQ (type, QCtoggle)) |
| 541 | prefix = build_string (NILP (selected) ? "[ ] " : "[X] "); |
| 542 | else if (EQ (type, QCradio)) |
| 543 | prefix = build_string (NILP (selected) ? "( ) " : "(*) "); |
| 544 | } |
| 545 | /* Not a button. If we have earlier buttons, then we need a prefix. */ |
| 546 | else if (!*notbuttons_ptr && XSTRING (item_string)->data[0] != '\0' |
| 547 | && XSTRING (item_string)->data[0] != '-') |
| 548 | prefix = build_string (" "); |
| 549 | |
| 550 | if (!NILP (prefix)) |
| 551 | item_string = concat2 (prefix, item_string); |
| 552 | } |
| 553 | #endif /* not HAVE_BOXES */ |
| 554 | |
| 555 | #ifndef USE_X_TOOLKIT |
| 556 | if (!NILP(map)) |
| 557 | /* Indicate visually that this is a submenu. */ |
| 558 | item_string = concat2 (item_string, build_string (" >")); |
| 559 | #endif |
| 560 | |
| 561 | push_menu_item (item_string, enabled, key, |
| 562 | XVECTOR (item_properties)->contents[ITEM_PROPERTY_DEF], |
| 563 | XVECTOR (item_properties)->contents[ITEM_PROPERTY_KEYEQ]); |
| 564 | |
| 565 | #ifdef USE_X_TOOLKIT |
| 566 | /* Display a submenu using the toolkit. */ |
| 567 | if (! (NILP (map) || NILP (enabled))) |
| 568 | { |
| 569 | push_submenu_start (); |
| 570 | single_keymap_panes (map, Qnil, key, 0, maxdepth - 1); |
| 571 | push_submenu_end (); |
| 572 | } |
| 573 | #endif |
| 574 | } |
| 575 | \f |
| 576 | /* Push all the panes and items of a menu described by the |
| 577 | alist-of-alists MENU. |
| 578 | This handles old-fashioned calls to x-popup-menu. */ |
| 579 | |
| 580 | static void |
| 581 | list_of_panes (menu) |
| 582 | Lisp_Object menu; |
| 583 | { |
| 584 | Lisp_Object tail; |
| 585 | |
| 586 | init_menu_items (); |
| 587 | |
| 588 | for (tail = menu; !NILP (tail); tail = Fcdr (tail)) |
| 589 | { |
| 590 | Lisp_Object elt, pane_name, pane_data; |
| 591 | elt = Fcar (tail); |
| 592 | pane_name = Fcar (elt); |
| 593 | CHECK_STRING (pane_name, 0); |
| 594 | push_menu_pane (pane_name, Qnil); |
| 595 | pane_data = Fcdr (elt); |
| 596 | CHECK_CONS (pane_data, 0); |
| 597 | list_of_items (pane_data); |
| 598 | } |
| 599 | |
| 600 | finish_menu_items (); |
| 601 | } |
| 602 | |
| 603 | /* Push the items in a single pane defined by the alist PANE. */ |
| 604 | |
| 605 | static void |
| 606 | list_of_items (pane) |
| 607 | Lisp_Object pane; |
| 608 | { |
| 609 | Lisp_Object tail, item, item1; |
| 610 | |
| 611 | for (tail = pane; !NILP (tail); tail = Fcdr (tail)) |
| 612 | { |
| 613 | item = Fcar (tail); |
| 614 | if (STRINGP (item)) |
| 615 | push_menu_item (item, Qnil, Qnil, Qt, Qnil); |
| 616 | else if (NILP (item)) |
| 617 | push_left_right_boundary (); |
| 618 | else |
| 619 | { |
| 620 | CHECK_CONS (item, 0); |
| 621 | item1 = Fcar (item); |
| 622 | CHECK_STRING (item1, 1); |
| 623 | push_menu_item (item1, Qt, Fcdr (item), Qt, Qnil); |
| 624 | } |
| 625 | } |
| 626 | } |
| 627 | \f |
| 628 | DEFUN ("x-popup-menu", Fx_popup_menu, Sx_popup_menu, 2, 2, 0, |
| 629 | "Pop up a deck-of-cards menu and return user's selection.\n\ |
| 630 | POSITION is a position specification. This is either a mouse button event\n\ |
| 631 | or a list ((XOFFSET YOFFSET) WINDOW)\n\ |
| 632 | where XOFFSET and YOFFSET are positions in pixels from the top left\n\ |
| 633 | corner of WINDOW's frame. (WINDOW may be a frame object instead of a window.)\n\ |
| 634 | This controls the position of the center of the first line\n\ |
| 635 | in the first pane of the menu, not the top left of the menu as a whole.\n\ |
| 636 | If POSITION is t, it means to use the current mouse position.\n\ |
| 637 | \n\ |
| 638 | MENU is a specifier for a menu. For the simplest case, MENU is a keymap.\n\ |
| 639 | The menu items come from key bindings that have a menu string as well as\n\ |
| 640 | a definition; actually, the \"definition\" in such a key binding looks like\n\ |
| 641 | \(STRING . REAL-DEFINITION). To give the menu a title, put a string into\n\ |
| 642 | the keymap as a top-level element.\n\n\ |
| 643 | If REAL-DEFINITION is nil, that puts a nonselectable string in the menu.\n\ |
| 644 | Otherwise, REAL-DEFINITION should be a valid key binding definition.\n\ |
| 645 | \n\ |
| 646 | You can also use a list of keymaps as MENU.\n\ |
| 647 | Then each keymap makes a separate pane.\n\ |
| 648 | When MENU is a keymap or a list of keymaps, the return value\n\ |
| 649 | is a list of events.\n\n\ |
| 650 | \n\ |
| 651 | Alternatively, you can specify a menu of multiple panes\n\ |
| 652 | with a list of the form (TITLE PANE1 PANE2...),\n\ |
| 653 | where each pane is a list of form (TITLE ITEM1 ITEM2...).\n\ |
| 654 | Each ITEM is normally a cons cell (STRING . VALUE);\n\ |
| 655 | but a string can appear as an item--that makes a nonselectable line\n\ |
| 656 | in the menu.\n\ |
| 657 | With this form of menu, the return value is VALUE from the chosen item.\n\ |
| 658 | \n\ |
| 659 | If POSITION is nil, don't display the menu at all, just precalculate the\n\ |
| 660 | cached information about equivalent key sequences.") |
| 661 | (position, menu) |
| 662 | Lisp_Object position, menu; |
| 663 | { |
| 664 | int number_of_panes, panes; |
| 665 | Lisp_Object keymap, tem; |
| 666 | int xpos, ypos; |
| 667 | Lisp_Object title; |
| 668 | char *error_name; |
| 669 | Lisp_Object selection; |
| 670 | int i, j; |
| 671 | FRAME_PTR f; |
| 672 | Lisp_Object x, y, window; |
| 673 | int keymaps = 0; |
| 674 | int for_click = 0; |
| 675 | struct gcpro gcpro1; |
| 676 | |
| 677 | #ifdef HAVE_MENUS |
| 678 | if (! NILP (position)) |
| 679 | { |
| 680 | check_x (); |
| 681 | |
| 682 | /* Decode the first argument: find the window and the coordinates. */ |
| 683 | if (EQ (position, Qt) |
| 684 | || (CONSP (position) && EQ (XCONS (position)->car, Qmenu_bar))) |
| 685 | { |
| 686 | /* Use the mouse's current position. */ |
| 687 | FRAME_PTR new_f = selected_frame; |
| 688 | Lisp_Object bar_window; |
| 689 | enum scroll_bar_part part; |
| 690 | unsigned long time; |
| 691 | |
| 692 | if (mouse_position_hook) |
| 693 | (*mouse_position_hook) (&new_f, 1, &bar_window, |
| 694 | &part, &x, &y, &time); |
| 695 | if (new_f != 0) |
| 696 | XSETFRAME (window, new_f); |
| 697 | else |
| 698 | { |
| 699 | window = selected_window; |
| 700 | XSETFASTINT (x, 0); |
| 701 | XSETFASTINT (y, 0); |
| 702 | } |
| 703 | } |
| 704 | else |
| 705 | { |
| 706 | tem = Fcar (position); |
| 707 | if (CONSP (tem)) |
| 708 | { |
| 709 | window = Fcar (Fcdr (position)); |
| 710 | x = Fcar (tem); |
| 711 | y = Fcar (Fcdr (tem)); |
| 712 | } |
| 713 | else |
| 714 | { |
| 715 | for_click = 1; |
| 716 | tem = Fcar (Fcdr (position)); /* EVENT_START (position) */ |
| 717 | window = Fcar (tem); /* POSN_WINDOW (tem) */ |
| 718 | tem = Fcar (Fcdr (Fcdr (tem))); /* POSN_WINDOW_POSN (tem) */ |
| 719 | x = Fcar (tem); |
| 720 | y = Fcdr (tem); |
| 721 | } |
| 722 | } |
| 723 | |
| 724 | CHECK_NUMBER (x, 0); |
| 725 | CHECK_NUMBER (y, 0); |
| 726 | |
| 727 | /* Decode where to put the menu. */ |
| 728 | |
| 729 | if (FRAMEP (window)) |
| 730 | { |
| 731 | f = XFRAME (window); |
| 732 | xpos = 0; |
| 733 | ypos = 0; |
| 734 | } |
| 735 | else if (WINDOWP (window)) |
| 736 | { |
| 737 | CHECK_LIVE_WINDOW (window, 0); |
| 738 | f = XFRAME (WINDOW_FRAME (XWINDOW (window))); |
| 739 | |
| 740 | xpos = (FONT_WIDTH (f->output_data.x->font) |
| 741 | * XFASTINT (XWINDOW (window)->left)); |
| 742 | ypos = (f->output_data.x->line_height |
| 743 | * XFASTINT (XWINDOW (window)->top)); |
| 744 | } |
| 745 | else |
| 746 | /* ??? Not really clean; should be CHECK_WINDOW_OR_FRAME, |
| 747 | but I don't want to make one now. */ |
| 748 | CHECK_WINDOW (window, 0); |
| 749 | |
| 750 | xpos += XINT (x); |
| 751 | ypos += XINT (y); |
| 752 | |
| 753 | XSETFRAME (Vmenu_updating_frame, f); |
| 754 | } |
| 755 | Vmenu_updating_frame = Qnil; |
| 756 | #endif /* HAVE_MENUS */ |
| 757 | |
| 758 | title = Qnil; |
| 759 | GCPRO1 (title); |
| 760 | |
| 761 | /* Decode the menu items from what was specified. */ |
| 762 | |
| 763 | keymap = Fkeymapp (menu); |
| 764 | tem = Qnil; |
| 765 | if (CONSP (menu)) |
| 766 | tem = Fkeymapp (Fcar (menu)); |
| 767 | if (!NILP (keymap)) |
| 768 | { |
| 769 | /* We were given a keymap. Extract menu info from the keymap. */ |
| 770 | Lisp_Object prompt; |
| 771 | keymap = get_keymap (menu); |
| 772 | |
| 773 | /* Extract the detailed info to make one pane. */ |
| 774 | keymap_panes (&menu, 1, NILP (position)); |
| 775 | |
| 776 | /* Search for a string appearing directly as an element of the keymap. |
| 777 | That string is the title of the menu. */ |
| 778 | prompt = map_prompt (keymap); |
| 779 | if (NILP (title) && !NILP (prompt)) |
| 780 | title = prompt; |
| 781 | |
| 782 | /* Make that be the pane title of the first pane. */ |
| 783 | if (!NILP (prompt) && menu_items_n_panes >= 0) |
| 784 | XVECTOR (menu_items)->contents[MENU_ITEMS_PANE_NAME] = prompt; |
| 785 | |
| 786 | keymaps = 1; |
| 787 | } |
| 788 | else if (!NILP (tem)) |
| 789 | { |
| 790 | /* We were given a list of keymaps. */ |
| 791 | int nmaps = XFASTINT (Flength (menu)); |
| 792 | Lisp_Object *maps |
| 793 | = (Lisp_Object *) alloca (nmaps * sizeof (Lisp_Object)); |
| 794 | int i; |
| 795 | |
| 796 | title = Qnil; |
| 797 | |
| 798 | /* The first keymap that has a prompt string |
| 799 | supplies the menu title. */ |
| 800 | for (tem = menu, i = 0; CONSP (tem); tem = Fcdr (tem)) |
| 801 | { |
| 802 | Lisp_Object prompt; |
| 803 | |
| 804 | maps[i++] = keymap = get_keymap (Fcar (tem)); |
| 805 | |
| 806 | prompt = map_prompt (keymap); |
| 807 | if (NILP (title) && !NILP (prompt)) |
| 808 | title = prompt; |
| 809 | } |
| 810 | |
| 811 | /* Extract the detailed info to make one pane. */ |
| 812 | keymap_panes (maps, nmaps, NILP (position)); |
| 813 | |
| 814 | /* Make the title be the pane title of the first pane. */ |
| 815 | if (!NILP (title) && menu_items_n_panes >= 0) |
| 816 | XVECTOR (menu_items)->contents[MENU_ITEMS_PANE_NAME] = title; |
| 817 | |
| 818 | keymaps = 1; |
| 819 | } |
| 820 | else |
| 821 | { |
| 822 | /* We were given an old-fashioned menu. */ |
| 823 | title = Fcar (menu); |
| 824 | CHECK_STRING (title, 1); |
| 825 | |
| 826 | list_of_panes (Fcdr (menu)); |
| 827 | |
| 828 | keymaps = 0; |
| 829 | } |
| 830 | |
| 831 | if (NILP (position)) |
| 832 | { |
| 833 | discard_menu_items (); |
| 834 | UNGCPRO; |
| 835 | return Qnil; |
| 836 | } |
| 837 | |
| 838 | #ifdef HAVE_MENUS |
| 839 | /* Display them in a menu. */ |
| 840 | BLOCK_INPUT; |
| 841 | |
| 842 | selection = xmenu_show (f, xpos, ypos, for_click, |
| 843 | keymaps, title, &error_name); |
| 844 | UNBLOCK_INPUT; |
| 845 | |
| 846 | discard_menu_items (); |
| 847 | |
| 848 | UNGCPRO; |
| 849 | #endif /* HAVE_MENUS */ |
| 850 | |
| 851 | if (error_name) error (error_name); |
| 852 | return selection; |
| 853 | } |
| 854 | |
| 855 | #ifdef HAVE_MENUS |
| 856 | |
| 857 | DEFUN ("x-popup-dialog", Fx_popup_dialog, Sx_popup_dialog, 2, 2, 0, |
| 858 | "Pop up a dialog box and return user's selection.\n\ |
| 859 | POSITION specifies which frame to use.\n\ |
| 860 | This is normally a mouse button event or a window or frame.\n\ |
| 861 | If POSITION is t, it means to use the frame the mouse is on.\n\ |
| 862 | The dialog box appears in the middle of the specified frame.\n\ |
| 863 | \n\ |
| 864 | CONTENTS specifies the alternatives to display in the dialog box.\n\ |
| 865 | It is a list of the form (TITLE ITEM1 ITEM2...).\n\ |
| 866 | Each ITEM is a cons cell (STRING . VALUE).\n\ |
| 867 | The return value is VALUE from the chosen item.\n\n\ |
| 868 | An ITEM may also be just a string--that makes a nonselectable item.\n\ |
| 869 | An ITEM may also be nil--that means to put all preceding items\n\ |
| 870 | on the left of the dialog box and all following items on the right.\n\ |
| 871 | \(By default, approximately half appear on each side.)") |
| 872 | (position, contents) |
| 873 | Lisp_Object position, contents; |
| 874 | { |
| 875 | FRAME_PTR f; |
| 876 | Lisp_Object window; |
| 877 | |
| 878 | check_x (); |
| 879 | |
| 880 | /* Decode the first argument: find the window or frame to use. */ |
| 881 | if (EQ (position, Qt) |
| 882 | || (CONSP (position) && EQ (XCONS (position)->car, Qmenu_bar))) |
| 883 | { |
| 884 | #if 0 /* Using the frame the mouse is on may not be right. */ |
| 885 | /* Use the mouse's current position. */ |
| 886 | FRAME_PTR new_f = selected_frame; |
| 887 | Lisp_Object bar_window; |
| 888 | int part; |
| 889 | unsigned long time; |
| 890 | Lisp_Object x, y; |
| 891 | |
| 892 | (*mouse_position_hook) (&new_f, 1, &bar_window, &part, &x, &y, &time); |
| 893 | |
| 894 | if (new_f != 0) |
| 895 | XSETFRAME (window, new_f); |
| 896 | else |
| 897 | window = selected_window; |
| 898 | #endif |
| 899 | window = selected_window; |
| 900 | } |
| 901 | else if (CONSP (position)) |
| 902 | { |
| 903 | Lisp_Object tem; |
| 904 | tem = Fcar (position); |
| 905 | if (CONSP (tem)) |
| 906 | window = Fcar (Fcdr (position)); |
| 907 | else |
| 908 | { |
| 909 | tem = Fcar (Fcdr (position)); /* EVENT_START (position) */ |
| 910 | window = Fcar (tem); /* POSN_WINDOW (tem) */ |
| 911 | } |
| 912 | } |
| 913 | else if (WINDOWP (position) || FRAMEP (position)) |
| 914 | window = position; |
| 915 | else |
| 916 | window = Qnil; |
| 917 | |
| 918 | /* Decode where to put the menu. */ |
| 919 | |
| 920 | if (FRAMEP (window)) |
| 921 | f = XFRAME (window); |
| 922 | else if (WINDOWP (window)) |
| 923 | { |
| 924 | CHECK_LIVE_WINDOW (window, 0); |
| 925 | f = XFRAME (WINDOW_FRAME (XWINDOW (window))); |
| 926 | } |
| 927 | else |
| 928 | /* ??? Not really clean; should be CHECK_WINDOW_OR_FRAME, |
| 929 | but I don't want to make one now. */ |
| 930 | CHECK_WINDOW (window, 0); |
| 931 | |
| 932 | #ifndef USE_X_TOOLKIT |
| 933 | /* Display a menu with these alternatives |
| 934 | in the middle of frame F. */ |
| 935 | { |
| 936 | Lisp_Object x, y, frame, newpos; |
| 937 | XSETFRAME (frame, f); |
| 938 | XSETINT (x, x_pixel_width (f) / 2); |
| 939 | XSETINT (y, x_pixel_height (f) / 2); |
| 940 | newpos = Fcons (Fcons (x, Fcons (y, Qnil)), Fcons (frame, Qnil)); |
| 941 | |
| 942 | return Fx_popup_menu (newpos, |
| 943 | Fcons (Fcar (contents), Fcons (contents, Qnil))); |
| 944 | } |
| 945 | #else |
| 946 | { |
| 947 | Lisp_Object title; |
| 948 | char *error_name; |
| 949 | Lisp_Object selection; |
| 950 | |
| 951 | /* Decode the dialog items from what was specified. */ |
| 952 | title = Fcar (contents); |
| 953 | CHECK_STRING (title, 1); |
| 954 | |
| 955 | list_of_panes (Fcons (contents, Qnil)); |
| 956 | |
| 957 | /* Display them in a dialog box. */ |
| 958 | BLOCK_INPUT; |
| 959 | selection = xdialog_show (f, 0, title, &error_name); |
| 960 | UNBLOCK_INPUT; |
| 961 | |
| 962 | discard_menu_items (); |
| 963 | |
| 964 | if (error_name) error (error_name); |
| 965 | return selection; |
| 966 | } |
| 967 | #endif |
| 968 | } |
| 969 | \f |
| 970 | #ifdef USE_X_TOOLKIT |
| 971 | |
| 972 | /* Loop in Xt until the menu pulldown or dialog popup has been |
| 973 | popped down (deactivated). This is used for x-popup-menu |
| 974 | and x-popup-dialog; it is not used for the menu bar any more. |
| 975 | |
| 976 | NOTE: All calls to popup_get_selection should be protected |
| 977 | with BLOCK_INPUT, UNBLOCK_INPUT wrappers. */ |
| 978 | |
| 979 | void |
| 980 | popup_get_selection (initial_event, dpyinfo, id) |
| 981 | XEvent *initial_event; |
| 982 | struct x_display_info *dpyinfo; |
| 983 | LWLIB_ID id; |
| 984 | { |
| 985 | XEvent event; |
| 986 | |
| 987 | /* Define a queue to save up for later unreading |
| 988 | all X events that don't pertain to the menu. */ |
| 989 | struct event_queue |
| 990 | { |
| 991 | XEvent event; |
| 992 | struct event_queue *next; |
| 993 | }; |
| 994 | |
| 995 | struct event_queue *queue = NULL; |
| 996 | struct event_queue *queue_tmp; |
| 997 | |
| 998 | if (initial_event) |
| 999 | event = *initial_event; |
| 1000 | else |
| 1001 | XtAppNextEvent (Xt_app_con, &event); |
| 1002 | |
| 1003 | while (1) |
| 1004 | { |
| 1005 | /* Handle expose events for editor frames right away. */ |
| 1006 | if (event.type == Expose) |
| 1007 | process_expose_from_menu (event); |
| 1008 | /* Make sure we don't consider buttons grabbed after menu goes. |
| 1009 | And make sure to deactivate for any ButtonRelease, |
| 1010 | even if XtDispatchEvent doesn't do that. */ |
| 1011 | else if (event.type == ButtonRelease |
| 1012 | && dpyinfo->display == event.xbutton.display) |
| 1013 | { |
| 1014 | dpyinfo->grabbed &= ~(1 << event.xbutton.button); |
| 1015 | popup_activated_flag = 0; |
| 1016 | #ifdef USE_MOTIF /* Pretending that the event came from a |
| 1017 | Btn1Down seems the only way to convince Motif to |
| 1018 | activate its callbacks; setting the XmNmenuPost |
| 1019 | isn't working. --marcus@sysc.pdx.edu. */ |
| 1020 | event.xbutton.button = 1; |
| 1021 | #endif |
| 1022 | } |
| 1023 | /* If the user presses a key, deactivate the menu. |
| 1024 | The user is likely to do that if we get wedged. */ |
| 1025 | else if (event.type == KeyPress |
| 1026 | && dpyinfo->display == event.xbutton.display) |
| 1027 | { |
| 1028 | KeySym keysym = XLookupKeysym (&event.xkey, 0); |
| 1029 | if (!IsModifierKey (keysym)) |
| 1030 | { |
| 1031 | popup_activated_flag = 0; |
| 1032 | break; |
| 1033 | } |
| 1034 | } |
| 1035 | /* Button presses outside the menu also pop it down. */ |
| 1036 | else if (event.type == ButtonPress |
| 1037 | && event.xany.display == dpyinfo->display |
| 1038 | && x_any_window_to_frame (dpyinfo, event.xany.window)) |
| 1039 | { |
| 1040 | popup_activated_flag = 0; |
| 1041 | break; |
| 1042 | } |
| 1043 | |
| 1044 | /* Queue all events not for this popup, |
| 1045 | except for Expose, which we've already handled, and ButtonRelease. |
| 1046 | Note that the X window is associated with the frame if this |
| 1047 | is a menu bar popup, but not if it's a dialog box. So we use |
| 1048 | x_non_menubar_window_to_frame, not x_any_window_to_frame. */ |
| 1049 | if (event.type != Expose |
| 1050 | && !(event.type == ButtonRelease |
| 1051 | && dpyinfo->display == event.xbutton.display) |
| 1052 | && (event.xany.display != dpyinfo->display |
| 1053 | || x_non_menubar_window_to_frame (dpyinfo, event.xany.window))) |
| 1054 | { |
| 1055 | queue_tmp = (struct event_queue *) malloc (sizeof (struct event_queue)); |
| 1056 | |
| 1057 | if (queue_tmp != NULL) |
| 1058 | { |
| 1059 | queue_tmp->event = event; |
| 1060 | queue_tmp->next = queue; |
| 1061 | queue = queue_tmp; |
| 1062 | } |
| 1063 | } |
| 1064 | else |
| 1065 | XtDispatchEvent (&event); |
| 1066 | |
| 1067 | if (!popup_activated ()) |
| 1068 | break; |
| 1069 | XtAppNextEvent (Xt_app_con, &event); |
| 1070 | } |
| 1071 | |
| 1072 | /* Unread any events that we got but did not handle. */ |
| 1073 | while (queue != NULL) |
| 1074 | { |
| 1075 | queue_tmp = queue; |
| 1076 | XPutBackEvent (queue_tmp->event.xany.display, &queue_tmp->event); |
| 1077 | queue = queue_tmp->next; |
| 1078 | free ((char *)queue_tmp); |
| 1079 | /* Cause these events to get read as soon as we UNBLOCK_INPUT. */ |
| 1080 | interrupt_input_pending = 1; |
| 1081 | } |
| 1082 | } |
| 1083 | |
| 1084 | /* Activate the menu bar of frame F. |
| 1085 | This is called from keyboard.c when it gets the |
| 1086 | menu_bar_activate_event out of the Emacs event queue. |
| 1087 | |
| 1088 | To activate the menu bar, we use the X button-press event |
| 1089 | that was saved in saved_menu_event. |
| 1090 | That makes the toolkit do its thing. |
| 1091 | |
| 1092 | But first we recompute the menu bar contents (the whole tree). |
| 1093 | |
| 1094 | The reason for saving the button event until here, instead of |
| 1095 | passing it to the toolkit right away, is that we can safely |
| 1096 | execute Lisp code. */ |
| 1097 | |
| 1098 | void |
| 1099 | x_activate_menubar (f) |
| 1100 | FRAME_PTR f; |
| 1101 | { |
| 1102 | if (!f->output_data.x->saved_menu_event->type) |
| 1103 | return; |
| 1104 | |
| 1105 | set_frame_menubar (f, 0, 1); |
| 1106 | BLOCK_INPUT; |
| 1107 | XtDispatchEvent ((XEvent *) f->output_data.x->saved_menu_event); |
| 1108 | UNBLOCK_INPUT; |
| 1109 | #ifdef USE_MOTIF |
| 1110 | if (f->output_data.x->saved_menu_event->type == ButtonRelease) |
| 1111 | pending_menu_activation = 1; |
| 1112 | #endif |
| 1113 | |
| 1114 | /* Ignore this if we get it a second time. */ |
| 1115 | f->output_data.x->saved_menu_event->type = 0; |
| 1116 | } |
| 1117 | |
| 1118 | /* Detect if a dialog or menu has been posted. */ |
| 1119 | |
| 1120 | int |
| 1121 | popup_activated () |
| 1122 | { |
| 1123 | return popup_activated_flag; |
| 1124 | } |
| 1125 | |
| 1126 | |
| 1127 | /* This callback is invoked when the user selects a menubar cascade |
| 1128 | pushbutton, but before the pulldown menu is posted. */ |
| 1129 | |
| 1130 | static void |
| 1131 | popup_activate_callback (widget, id, client_data) |
| 1132 | Widget widget; |
| 1133 | LWLIB_ID id; |
| 1134 | XtPointer client_data; |
| 1135 | { |
| 1136 | popup_activated_flag = 1; |
| 1137 | } |
| 1138 | |
| 1139 | /* This callback is called from the menu bar pulldown menu |
| 1140 | when the user makes a selection. |
| 1141 | Figure out what the user chose |
| 1142 | and put the appropriate events into the keyboard buffer. */ |
| 1143 | |
| 1144 | static void |
| 1145 | menubar_selection_callback (widget, id, client_data) |
| 1146 | Widget widget; |
| 1147 | LWLIB_ID id; |
| 1148 | XtPointer client_data; |
| 1149 | { |
| 1150 | Lisp_Object prefix, entry; |
| 1151 | FRAME_PTR f = menubar_id_to_frame (id); |
| 1152 | Lisp_Object vector; |
| 1153 | Lisp_Object *subprefix_stack; |
| 1154 | int submenu_depth = 0; |
| 1155 | int i; |
| 1156 | |
| 1157 | if (!f) |
| 1158 | return; |
| 1159 | subprefix_stack = (Lisp_Object *) alloca (f->menu_bar_items_used * sizeof (Lisp_Object)); |
| 1160 | vector = f->menu_bar_vector; |
| 1161 | prefix = Qnil; |
| 1162 | i = 0; |
| 1163 | while (i < f->menu_bar_items_used) |
| 1164 | { |
| 1165 | if (EQ (XVECTOR (vector)->contents[i], Qnil)) |
| 1166 | { |
| 1167 | subprefix_stack[submenu_depth++] = prefix; |
| 1168 | prefix = entry; |
| 1169 | i++; |
| 1170 | } |
| 1171 | else if (EQ (XVECTOR (vector)->contents[i], Qlambda)) |
| 1172 | { |
| 1173 | prefix = subprefix_stack[--submenu_depth]; |
| 1174 | i++; |
| 1175 | } |
| 1176 | else if (EQ (XVECTOR (vector)->contents[i], Qt)) |
| 1177 | { |
| 1178 | prefix = XVECTOR (vector)->contents[i + MENU_ITEMS_PANE_PREFIX]; |
| 1179 | i += MENU_ITEMS_PANE_LENGTH; |
| 1180 | } |
| 1181 | else |
| 1182 | { |
| 1183 | entry = XVECTOR (vector)->contents[i + MENU_ITEMS_ITEM_VALUE]; |
| 1184 | /* The EMACS_INT cast avoids a warning. There's no problem |
| 1185 | as long as pointers have enough bits to hold small integers. */ |
| 1186 | if ((int) (EMACS_INT) client_data == i) |
| 1187 | { |
| 1188 | int j; |
| 1189 | struct input_event buf; |
| 1190 | Lisp_Object frame; |
| 1191 | |
| 1192 | XSETFRAME (frame, f); |
| 1193 | buf.kind = menu_bar_event; |
| 1194 | buf.frame_or_window = Fcons (frame, Fcons (Qmenu_bar, Qnil)); |
| 1195 | kbd_buffer_store_event (&buf); |
| 1196 | |
| 1197 | for (j = 0; j < submenu_depth; j++) |
| 1198 | if (!NILP (subprefix_stack[j])) |
| 1199 | { |
| 1200 | buf.kind = menu_bar_event; |
| 1201 | buf.frame_or_window = Fcons (frame, subprefix_stack[j]); |
| 1202 | kbd_buffer_store_event (&buf); |
| 1203 | } |
| 1204 | |
| 1205 | if (!NILP (prefix)) |
| 1206 | { |
| 1207 | buf.kind = menu_bar_event; |
| 1208 | buf.frame_or_window = Fcons (frame, prefix); |
| 1209 | kbd_buffer_store_event (&buf); |
| 1210 | } |
| 1211 | |
| 1212 | buf.kind = menu_bar_event; |
| 1213 | buf.frame_or_window = Fcons (frame, entry); |
| 1214 | kbd_buffer_store_event (&buf); |
| 1215 | |
| 1216 | return; |
| 1217 | } |
| 1218 | i += MENU_ITEMS_ITEM_LENGTH; |
| 1219 | } |
| 1220 | } |
| 1221 | } |
| 1222 | |
| 1223 | /* This callback is invoked when a dialog or menu is finished being |
| 1224 | used and has been unposted. */ |
| 1225 | |
| 1226 | static void |
| 1227 | popup_deactivate_callback (widget, id, client_data) |
| 1228 | Widget widget; |
| 1229 | LWLIB_ID id; |
| 1230 | XtPointer client_data; |
| 1231 | { |
| 1232 | popup_activated_flag = 0; |
| 1233 | } |
| 1234 | |
| 1235 | /* Allocate a widget_value, blocking input. */ |
| 1236 | |
| 1237 | widget_value * |
| 1238 | xmalloc_widget_value () |
| 1239 | { |
| 1240 | widget_value *value; |
| 1241 | |
| 1242 | BLOCK_INPUT; |
| 1243 | value = malloc_widget_value (); |
| 1244 | UNBLOCK_INPUT; |
| 1245 | |
| 1246 | return value; |
| 1247 | } |
| 1248 | |
| 1249 | /* This recursively calls free_widget_value on the tree of widgets. |
| 1250 | It must free all data that was malloc'ed for these widget_values. |
| 1251 | In Emacs, many slots are pointers into the data of Lisp_Strings, and |
| 1252 | must be left alone. */ |
| 1253 | |
| 1254 | void |
| 1255 | free_menubar_widget_value_tree (wv) |
| 1256 | widget_value *wv; |
| 1257 | { |
| 1258 | if (! wv) return; |
| 1259 | |
| 1260 | wv->name = wv->value = wv->key = (char *) 0xDEADBEEF; |
| 1261 | |
| 1262 | if (wv->contents && (wv->contents != (widget_value*)1)) |
| 1263 | { |
| 1264 | free_menubar_widget_value_tree (wv->contents); |
| 1265 | wv->contents = (widget_value *) 0xDEADBEEF; |
| 1266 | } |
| 1267 | if (wv->next) |
| 1268 | { |
| 1269 | free_menubar_widget_value_tree (wv->next); |
| 1270 | wv->next = (widget_value *) 0xDEADBEEF; |
| 1271 | } |
| 1272 | BLOCK_INPUT; |
| 1273 | free_widget_value (wv); |
| 1274 | UNBLOCK_INPUT; |
| 1275 | } |
| 1276 | \f |
| 1277 | /* Return a tree of widget_value structures for a menu bar item |
| 1278 | whose event type is ITEM_KEY (with string ITEM_NAME) |
| 1279 | and whose contents come from the list of keymaps MAPS. */ |
| 1280 | |
| 1281 | static widget_value * |
| 1282 | single_submenu (item_key, item_name, maps) |
| 1283 | Lisp_Object item_key, item_name, maps; |
| 1284 | { |
| 1285 | widget_value *wv, *prev_wv, *save_wv, *first_wv; |
| 1286 | int i; |
| 1287 | int submenu_depth = 0; |
| 1288 | Lisp_Object length; |
| 1289 | int len; |
| 1290 | Lisp_Object *mapvec; |
| 1291 | widget_value **submenu_stack; |
| 1292 | int mapno; |
| 1293 | int previous_items = menu_items_used; |
| 1294 | int top_level_items = 0; |
| 1295 | |
| 1296 | length = Flength (maps); |
| 1297 | len = XINT (length); |
| 1298 | |
| 1299 | /* Convert the list MAPS into a vector MAPVEC. */ |
| 1300 | mapvec = (Lisp_Object *) alloca (len * sizeof (Lisp_Object)); |
| 1301 | for (i = 0; i < len; i++) |
| 1302 | { |
| 1303 | mapvec[i] = Fcar (maps); |
| 1304 | maps = Fcdr (maps); |
| 1305 | } |
| 1306 | |
| 1307 | menu_items_n_panes = 0; |
| 1308 | |
| 1309 | /* Loop over the given keymaps, making a pane for each map. |
| 1310 | But don't make a pane that is empty--ignore that map instead. */ |
| 1311 | for (i = 0; i < len; i++) |
| 1312 | { |
| 1313 | if (SYMBOLP (mapvec[i]) |
| 1314 | || (CONSP (mapvec[i]) |
| 1315 | && NILP (Fkeymapp (mapvec[i])))) |
| 1316 | { |
| 1317 | /* Here we have a command at top level in the menu bar |
| 1318 | as opposed to a submenu. */ |
| 1319 | top_level_items = 1; |
| 1320 | push_menu_pane (Qnil, Qnil); |
| 1321 | push_menu_item (item_name, Qt, item_key, mapvec[i], Qnil); |
| 1322 | } |
| 1323 | else |
| 1324 | single_keymap_panes (mapvec[i], item_name, item_key, 0, 10); |
| 1325 | } |
| 1326 | |
| 1327 | /* Create a tree of widget_value objects |
| 1328 | representing the panes and their items. */ |
| 1329 | |
| 1330 | submenu_stack |
| 1331 | = (widget_value **) alloca (menu_items_used * sizeof (widget_value *)); |
| 1332 | wv = xmalloc_widget_value (); |
| 1333 | wv->name = "menu"; |
| 1334 | wv->value = 0; |
| 1335 | wv->enabled = 1; |
| 1336 | first_wv = wv; |
| 1337 | save_wv = 0; |
| 1338 | prev_wv = 0; |
| 1339 | |
| 1340 | /* Loop over all panes and items made during this call |
| 1341 | and construct a tree of widget_value objects. |
| 1342 | Ignore the panes and items made by previous calls to |
| 1343 | single_submenu, even though those are also in menu_items. */ |
| 1344 | i = previous_items; |
| 1345 | while (i < menu_items_used) |
| 1346 | { |
| 1347 | if (EQ (XVECTOR (menu_items)->contents[i], Qnil)) |
| 1348 | { |
| 1349 | submenu_stack[submenu_depth++] = save_wv; |
| 1350 | save_wv = prev_wv; |
| 1351 | prev_wv = 0; |
| 1352 | i++; |
| 1353 | } |
| 1354 | else if (EQ (XVECTOR (menu_items)->contents[i], Qlambda)) |
| 1355 | { |
| 1356 | prev_wv = save_wv; |
| 1357 | save_wv = submenu_stack[--submenu_depth]; |
| 1358 | i++; |
| 1359 | } |
| 1360 | else if (EQ (XVECTOR (menu_items)->contents[i], Qt) |
| 1361 | && submenu_depth != 0) |
| 1362 | i += MENU_ITEMS_PANE_LENGTH; |
| 1363 | /* Ignore a nil in the item list. |
| 1364 | It's meaningful only for dialog boxes. */ |
| 1365 | else if (EQ (XVECTOR (menu_items)->contents[i], Qquote)) |
| 1366 | i += 1; |
| 1367 | else if (EQ (XVECTOR (menu_items)->contents[i], Qt)) |
| 1368 | { |
| 1369 | /* Create a new pane. */ |
| 1370 | Lisp_Object pane_name, prefix; |
| 1371 | char *pane_string; |
| 1372 | pane_name = XVECTOR (menu_items)->contents[i + MENU_ITEMS_PANE_NAME]; |
| 1373 | prefix = XVECTOR (menu_items)->contents[i + MENU_ITEMS_PANE_PREFIX]; |
| 1374 | pane_string = (NILP (pane_name) |
| 1375 | ? "" : (char *) XSTRING (pane_name)->data); |
| 1376 | /* If there is just one top-level pane, put all its items directly |
| 1377 | under the top-level menu. */ |
| 1378 | if (menu_items_n_panes == 1) |
| 1379 | pane_string = ""; |
| 1380 | |
| 1381 | /* If the pane has a meaningful name, |
| 1382 | make the pane a top-level menu item |
| 1383 | with its items as a submenu beneath it. */ |
| 1384 | if (strcmp (pane_string, "")) |
| 1385 | { |
| 1386 | wv = xmalloc_widget_value (); |
| 1387 | if (save_wv) |
| 1388 | save_wv->next = wv; |
| 1389 | else |
| 1390 | first_wv->contents = wv; |
| 1391 | wv->name = pane_string; |
| 1392 | /* Ignore the @ that means "separate pane". |
| 1393 | This is a kludge, but this isn't worth more time. */ |
| 1394 | if (!NILP (prefix) && wv->name[0] == '@') |
| 1395 | wv->name++; |
| 1396 | wv->value = 0; |
| 1397 | wv->enabled = 1; |
| 1398 | } |
| 1399 | save_wv = wv; |
| 1400 | prev_wv = 0; |
| 1401 | i += MENU_ITEMS_PANE_LENGTH; |
| 1402 | } |
| 1403 | else |
| 1404 | { |
| 1405 | /* Create a new item within current pane. */ |
| 1406 | Lisp_Object item_name, enable, descrip, def; |
| 1407 | item_name = XVECTOR (menu_items)->contents[i + MENU_ITEMS_ITEM_NAME]; |
| 1408 | enable = XVECTOR (menu_items)->contents[i + MENU_ITEMS_ITEM_ENABLE]; |
| 1409 | descrip |
| 1410 | = XVECTOR (menu_items)->contents[i + MENU_ITEMS_ITEM_EQUIV_KEY]; |
| 1411 | def = XVECTOR (menu_items)->contents[i + MENU_ITEMS_ITEM_DEFINITION]; |
| 1412 | |
| 1413 | wv = xmalloc_widget_value (); |
| 1414 | if (prev_wv) |
| 1415 | prev_wv->next = wv; |
| 1416 | else |
| 1417 | save_wv->contents = wv; |
| 1418 | |
| 1419 | wv->name = (char *) XSTRING (item_name)->data; |
| 1420 | if (!NILP (descrip)) |
| 1421 | wv->key = (char *) XSTRING (descrip)->data; |
| 1422 | wv->value = 0; |
| 1423 | /* The EMACS_INT cast avoids a warning. There's no problem |
| 1424 | as long as pointers have enough bits to hold small integers. */ |
| 1425 | wv->call_data = (!NILP (def) ? (void *) (EMACS_INT) i : 0); |
| 1426 | wv->enabled = !NILP (enable); |
| 1427 | prev_wv = wv; |
| 1428 | |
| 1429 | i += MENU_ITEMS_ITEM_LENGTH; |
| 1430 | } |
| 1431 | } |
| 1432 | |
| 1433 | /* If we have just one "menu item" |
| 1434 | that was originally a button, return it by itself. */ |
| 1435 | if (top_level_items && first_wv->contents && first_wv->contents->next == 0) |
| 1436 | { |
| 1437 | wv = first_wv->contents; |
| 1438 | free_widget_value (first_wv); |
| 1439 | return wv; |
| 1440 | } |
| 1441 | |
| 1442 | return first_wv; |
| 1443 | } |
| 1444 | \f |
| 1445 | extern void EmacsFrameSetCharSize (); |
| 1446 | |
| 1447 | /* Recompute all the widgets of frame F, when the menu bar |
| 1448 | has been changed. */ |
| 1449 | |
| 1450 | static void |
| 1451 | update_frame_menubar (f) |
| 1452 | FRAME_PTR f; |
| 1453 | { |
| 1454 | struct x_output *x = f->output_data.x; |
| 1455 | int columns, rows; |
| 1456 | int menubar_changed; |
| 1457 | |
| 1458 | Dimension shell_height; |
| 1459 | |
| 1460 | /* We assume the menubar contents has changed if the global flag is set, |
| 1461 | or if the current buffer has changed, or if the menubar has never |
| 1462 | been updated before. |
| 1463 | */ |
| 1464 | menubar_changed = (x->menubar_widget |
| 1465 | && !XtIsManaged (x->menubar_widget)); |
| 1466 | |
| 1467 | if (! (menubar_changed)) |
| 1468 | return; |
| 1469 | |
| 1470 | BLOCK_INPUT; |
| 1471 | /* Save the size of the frame because the pane widget doesn't accept to |
| 1472 | resize itself. So force it. */ |
| 1473 | columns = f->width; |
| 1474 | rows = f->height; |
| 1475 | |
| 1476 | /* Do the voodoo which means "I'm changing lots of things, don't try to |
| 1477 | refigure sizes until I'm done." */ |
| 1478 | lw_refigure_widget (x->column_widget, False); |
| 1479 | |
| 1480 | /* the order in which children are managed is the top to |
| 1481 | bottom order in which they are displayed in the paned window. |
| 1482 | First, remove the text-area widget. |
| 1483 | */ |
| 1484 | XtUnmanageChild (x->edit_widget); |
| 1485 | |
| 1486 | /* remove the menubar that is there now, and put up the menubar that |
| 1487 | should be there. |
| 1488 | */ |
| 1489 | if (menubar_changed) |
| 1490 | { |
| 1491 | XtManageChild (x->menubar_widget); |
| 1492 | XtMapWidget (x->menubar_widget); |
| 1493 | XtVaSetValues (x->menubar_widget, XtNmappedWhenManaged, 1, 0); |
| 1494 | } |
| 1495 | |
| 1496 | /* Re-manage the text-area widget, and then thrash the sizes. */ |
| 1497 | XtManageChild (x->edit_widget); |
| 1498 | lw_refigure_widget (x->column_widget, True); |
| 1499 | |
| 1500 | /* Force the pane widget to resize itself with the right values. */ |
| 1501 | EmacsFrameSetCharSize (x->edit_widget, columns, rows); |
| 1502 | |
| 1503 | UNBLOCK_INPUT; |
| 1504 | } |
| 1505 | |
| 1506 | /* Set the contents of the menubar widgets of frame F. |
| 1507 | The argument FIRST_TIME is currently ignored; |
| 1508 | it is set the first time this is called, from initialize_frame_menubar. */ |
| 1509 | |
| 1510 | void |
| 1511 | set_frame_menubar (f, first_time, deep_p) |
| 1512 | FRAME_PTR f; |
| 1513 | int first_time; |
| 1514 | int deep_p; |
| 1515 | { |
| 1516 | Widget menubar_widget = f->output_data.x->menubar_widget; |
| 1517 | Lisp_Object tail, items, frame; |
| 1518 | widget_value *wv, *first_wv, *prev_wv = 0; |
| 1519 | int i; |
| 1520 | LWLIB_ID id; |
| 1521 | |
| 1522 | XSETFRAME (Vmenu_updating_frame, f); |
| 1523 | |
| 1524 | if (f->output_data.x->id == 0) |
| 1525 | f->output_data.x->id = next_menubar_widget_id++; |
| 1526 | id = f->output_data.x->id; |
| 1527 | |
| 1528 | if (! menubar_widget) |
| 1529 | deep_p = 1; |
| 1530 | else if (pending_menu_activation && !deep_p) |
| 1531 | deep_p = 1; |
| 1532 | /* Make the first call for any given frame always go deep. */ |
| 1533 | else if (!f->output_data.x->saved_menu_event && !deep_p) |
| 1534 | { |
| 1535 | deep_p = 1; |
| 1536 | f->output_data.x->saved_menu_event = (XEvent*)xmalloc (sizeof (XEvent)); |
| 1537 | f->output_data.x->saved_menu_event->type = 0; |
| 1538 | } |
| 1539 | |
| 1540 | wv = xmalloc_widget_value (); |
| 1541 | wv->name = "menubar"; |
| 1542 | wv->value = 0; |
| 1543 | wv->enabled = 1; |
| 1544 | first_wv = wv; |
| 1545 | |
| 1546 | if (deep_p) |
| 1547 | { |
| 1548 | /* Make a widget-value tree representing the entire menu trees. */ |
| 1549 | |
| 1550 | struct buffer *prev = current_buffer; |
| 1551 | Lisp_Object buffer; |
| 1552 | int specpdl_count = specpdl_ptr - specpdl; |
| 1553 | int previous_menu_items_used = f->menu_bar_items_used; |
| 1554 | Lisp_Object *previous_items |
| 1555 | = (Lisp_Object *) alloca (previous_menu_items_used |
| 1556 | * sizeof (Lisp_Object)); |
| 1557 | |
| 1558 | /* If we are making a new widget, its contents are empty, |
| 1559 | do always reinitialize them. */ |
| 1560 | if (! menubar_widget) |
| 1561 | previous_menu_items_used = 0; |
| 1562 | |
| 1563 | buffer = XWINDOW (FRAME_SELECTED_WINDOW (f))->buffer; |
| 1564 | specbind (Qinhibit_quit, Qt); |
| 1565 | /* Don't let the debugger step into this code |
| 1566 | because it is not reentrant. */ |
| 1567 | specbind (Qdebug_on_next_call, Qnil); |
| 1568 | |
| 1569 | record_unwind_protect (Fset_match_data, Fmatch_data (Qnil, Qnil)); |
| 1570 | if (NILP (Voverriding_local_map_menu_flag)) |
| 1571 | { |
| 1572 | specbind (Qoverriding_terminal_local_map, Qnil); |
| 1573 | specbind (Qoverriding_local_map, Qnil); |
| 1574 | } |
| 1575 | |
| 1576 | set_buffer_internal_1 (XBUFFER (buffer)); |
| 1577 | |
| 1578 | /* Run the Lucid hook. */ |
| 1579 | call1 (Vrun_hooks, Qactivate_menubar_hook); |
| 1580 | /* If it has changed current-menubar from previous value, |
| 1581 | really recompute the menubar from the value. */ |
| 1582 | if (! NILP (Vlucid_menu_bar_dirty_flag)) |
| 1583 | call0 (Qrecompute_lucid_menubar); |
| 1584 | safe_run_hooks (Qmenu_bar_update_hook); |
| 1585 | FRAME_MENU_BAR_ITEMS (f) = menu_bar_items (FRAME_MENU_BAR_ITEMS (f)); |
| 1586 | |
| 1587 | items = FRAME_MENU_BAR_ITEMS (f); |
| 1588 | |
| 1589 | inhibit_garbage_collection (); |
| 1590 | |
| 1591 | /* Save the frame's previous menu bar contents data. */ |
| 1592 | bcopy (XVECTOR (f->menu_bar_vector)->contents, previous_items, |
| 1593 | previous_menu_items_used * sizeof (Lisp_Object)); |
| 1594 | |
| 1595 | /* Fill in the current menu bar contents. */ |
| 1596 | menu_items = f->menu_bar_vector; |
| 1597 | menu_items_allocated = XVECTOR (menu_items)->size; |
| 1598 | init_menu_items (); |
| 1599 | for (i = 0; i < XVECTOR (items)->size; i += 4) |
| 1600 | { |
| 1601 | Lisp_Object key, string, maps; |
| 1602 | |
| 1603 | key = XVECTOR (items)->contents[i]; |
| 1604 | string = XVECTOR (items)->contents[i + 1]; |
| 1605 | maps = XVECTOR (items)->contents[i + 2]; |
| 1606 | if (NILP (string)) |
| 1607 | break; |
| 1608 | |
| 1609 | wv = single_submenu (key, string, maps); |
| 1610 | if (prev_wv) |
| 1611 | prev_wv->next = wv; |
| 1612 | else |
| 1613 | first_wv->contents = wv; |
| 1614 | /* Don't set wv->name here; GC during the loop might relocate it. */ |
| 1615 | wv->enabled = 1; |
| 1616 | prev_wv = wv; |
| 1617 | } |
| 1618 | |
| 1619 | finish_menu_items (); |
| 1620 | |
| 1621 | set_buffer_internal_1 (prev); |
| 1622 | unbind_to (specpdl_count, Qnil); |
| 1623 | |
| 1624 | /* If there has been no change in the Lisp-level contents |
| 1625 | of the menu bar, skip redisplaying it. Just exit. */ |
| 1626 | |
| 1627 | for (i = 0; i < previous_menu_items_used; i++) |
| 1628 | if (menu_items_used == i |
| 1629 | || (!EQ (previous_items[i], XVECTOR (menu_items)->contents[i]))) |
| 1630 | break; |
| 1631 | if (i == menu_items_used && i == previous_menu_items_used && i != 0) |
| 1632 | { |
| 1633 | free_menubar_widget_value_tree (first_wv); |
| 1634 | menu_items = Qnil; |
| 1635 | |
| 1636 | return; |
| 1637 | } |
| 1638 | |
| 1639 | /* Now GC cannot happen during the lifetime of the widget_value, |
| 1640 | so it's safe to store data from a Lisp_String. */ |
| 1641 | wv = first_wv->contents; |
| 1642 | for (i = 0; i < XVECTOR (items)->size; i += 4) |
| 1643 | { |
| 1644 | Lisp_Object string; |
| 1645 | string = XVECTOR (items)->contents[i + 1]; |
| 1646 | if (NILP (string)) |
| 1647 | break; |
| 1648 | wv->name = (char *) XSTRING (string)->data; |
| 1649 | wv = wv->next; |
| 1650 | } |
| 1651 | |
| 1652 | f->menu_bar_vector = menu_items; |
| 1653 | f->menu_bar_items_used = menu_items_used; |
| 1654 | menu_items = Qnil; |
| 1655 | } |
| 1656 | else |
| 1657 | { |
| 1658 | /* Make a widget-value tree containing |
| 1659 | just the top level menu bar strings. */ |
| 1660 | |
| 1661 | items = FRAME_MENU_BAR_ITEMS (f); |
| 1662 | for (i = 0; i < XVECTOR (items)->size; i += 4) |
| 1663 | { |
| 1664 | Lisp_Object string; |
| 1665 | |
| 1666 | string = XVECTOR (items)->contents[i + 1]; |
| 1667 | if (NILP (string)) |
| 1668 | break; |
| 1669 | |
| 1670 | wv = xmalloc_widget_value (); |
| 1671 | wv->name = (char *) XSTRING (string)->data; |
| 1672 | wv->value = 0; |
| 1673 | wv->enabled = 1; |
| 1674 | /* This prevents lwlib from assuming this |
| 1675 | menu item is really supposed to be empty. */ |
| 1676 | /* The EMACS_INT cast avoids a warning. |
| 1677 | This value just has to be different from small integers. */ |
| 1678 | wv->call_data = (void *) (EMACS_INT) (-1); |
| 1679 | |
| 1680 | if (prev_wv) |
| 1681 | prev_wv->next = wv; |
| 1682 | else |
| 1683 | first_wv->contents = wv; |
| 1684 | prev_wv = wv; |
| 1685 | } |
| 1686 | |
| 1687 | /* Forget what we thought we knew about what is in the |
| 1688 | detailed contents of the menu bar menus. |
| 1689 | Changing the top level always destroys the contents. */ |
| 1690 | f->menu_bar_items_used = 0; |
| 1691 | } |
| 1692 | |
| 1693 | /* Create or update the menu bar widget. */ |
| 1694 | |
| 1695 | BLOCK_INPUT; |
| 1696 | |
| 1697 | if (menubar_widget) |
| 1698 | { |
| 1699 | /* Disable resizing (done for Motif!) */ |
| 1700 | lw_allow_resizing (f->output_data.x->widget, False); |
| 1701 | |
| 1702 | /* The third arg is DEEP_P, which says to consider the entire |
| 1703 | menu trees we supply, rather than just the menu bar item names. */ |
| 1704 | lw_modify_all_widgets (id, first_wv, deep_p); |
| 1705 | |
| 1706 | /* Re-enable the edit widget to resize. */ |
| 1707 | lw_allow_resizing (f->output_data.x->widget, True); |
| 1708 | } |
| 1709 | else |
| 1710 | { |
| 1711 | menubar_widget = lw_create_widget ("menubar", "menubar", id, first_wv, |
| 1712 | f->output_data.x->column_widget, |
| 1713 | 0, |
| 1714 | popup_activate_callback, |
| 1715 | menubar_selection_callback, |
| 1716 | popup_deactivate_callback); |
| 1717 | f->output_data.x->menubar_widget = menubar_widget; |
| 1718 | } |
| 1719 | |
| 1720 | { |
| 1721 | int menubar_size |
| 1722 | = (f->output_data.x->menubar_widget |
| 1723 | ? (f->output_data.x->menubar_widget->core.height |
| 1724 | + f->output_data.x->menubar_widget->core.border_width) |
| 1725 | : 0); |
| 1726 | |
| 1727 | #if 0 /* Experimentally, we now get the right results |
| 1728 | for -geometry -0-0 without this. 24 Aug 96, rms. */ |
| 1729 | #ifdef USE_LUCID |
| 1730 | if (FRAME_EXTERNAL_MENU_BAR (f)) |
| 1731 | { |
| 1732 | Dimension ibw = 0; |
| 1733 | XtVaGetValues (f->output_data.x->column_widget, |
| 1734 | XtNinternalBorderWidth, &ibw, NULL); |
| 1735 | menubar_size += ibw; |
| 1736 | } |
| 1737 | #endif /* USE_LUCID */ |
| 1738 | #endif /* 0 */ |
| 1739 | |
| 1740 | f->output_data.x->menubar_height = menubar_size; |
| 1741 | } |
| 1742 | |
| 1743 | free_menubar_widget_value_tree (first_wv); |
| 1744 | |
| 1745 | update_frame_menubar (f); |
| 1746 | |
| 1747 | UNBLOCK_INPUT; |
| 1748 | } |
| 1749 | |
| 1750 | /* Called from Fx_create_frame to create the initial menubar of a frame |
| 1751 | before it is mapped, so that the window is mapped with the menubar already |
| 1752 | there instead of us tacking it on later and thrashing the window after it |
| 1753 | is visible. */ |
| 1754 | |
| 1755 | void |
| 1756 | initialize_frame_menubar (f) |
| 1757 | FRAME_PTR f; |
| 1758 | { |
| 1759 | /* This function is called before the first chance to redisplay |
| 1760 | the frame. It has to be, so the frame will have the right size. */ |
| 1761 | FRAME_MENU_BAR_ITEMS (f) = menu_bar_items (FRAME_MENU_BAR_ITEMS (f)); |
| 1762 | set_frame_menubar (f, 1, 1); |
| 1763 | } |
| 1764 | |
| 1765 | /* Get rid of the menu bar of frame F, and free its storage. |
| 1766 | This is used when deleting a frame, and when turning off the menu bar. */ |
| 1767 | |
| 1768 | void |
| 1769 | free_frame_menubar (f) |
| 1770 | FRAME_PTR f; |
| 1771 | { |
| 1772 | Widget menubar_widget; |
| 1773 | int id; |
| 1774 | |
| 1775 | menubar_widget = f->output_data.x->menubar_widget; |
| 1776 | |
| 1777 | f->output_data.x->menubar_height = 0; |
| 1778 | |
| 1779 | if (menubar_widget) |
| 1780 | { |
| 1781 | BLOCK_INPUT; |
| 1782 | lw_destroy_all_widgets ((LWLIB_ID) f->output_data.x->id); |
| 1783 | UNBLOCK_INPUT; |
| 1784 | } |
| 1785 | } |
| 1786 | |
| 1787 | #endif /* USE_X_TOOLKIT */ |
| 1788 | \f |
| 1789 | /* xmenu_show actually displays a menu using the panes and items in menu_items |
| 1790 | and returns the value selected from it. |
| 1791 | There are two versions of xmenu_show, one for Xt and one for Xlib. |
| 1792 | Both assume input is blocked by the caller. */ |
| 1793 | |
| 1794 | /* F is the frame the menu is for. |
| 1795 | X and Y are the frame-relative specified position, |
| 1796 | relative to the inside upper left corner of the frame F. |
| 1797 | FOR_CLICK is nonzero if this menu was invoked for a mouse click. |
| 1798 | KEYMAPS is 1 if this menu was specified with keymaps; |
| 1799 | in that case, we return a list containing the chosen item's value |
| 1800 | and perhaps also the pane's prefix. |
| 1801 | TITLE is the specified menu title. |
| 1802 | ERROR is a place to store an error message string in case of failure. |
| 1803 | (We return nil on failure, but the value doesn't actually matter.) */ |
| 1804 | |
| 1805 | #ifdef USE_X_TOOLKIT |
| 1806 | |
| 1807 | /* We need a unique id for each widget handled by the Lucid Widget |
| 1808 | library. |
| 1809 | |
| 1810 | For the main windows, and popup menus, we use this counter, |
| 1811 | which we increment each time after use. This starts from 1<<16. |
| 1812 | |
| 1813 | For menu bars, we use numbers starting at 0, counted in |
| 1814 | next_menubar_widget_id. */ |
| 1815 | LWLIB_ID widget_id_tick; |
| 1816 | |
| 1817 | #ifdef __STDC__ |
| 1818 | static Lisp_Object *volatile menu_item_selection; |
| 1819 | #else |
| 1820 | static Lisp_Object *menu_item_selection; |
| 1821 | #endif |
| 1822 | |
| 1823 | static void |
| 1824 | popup_selection_callback (widget, id, client_data) |
| 1825 | Widget widget; |
| 1826 | LWLIB_ID id; |
| 1827 | XtPointer client_data; |
| 1828 | { |
| 1829 | menu_item_selection = (Lisp_Object *) client_data; |
| 1830 | } |
| 1831 | |
| 1832 | static Lisp_Object |
| 1833 | xmenu_show (f, x, y, for_click, keymaps, title, error) |
| 1834 | FRAME_PTR f; |
| 1835 | int x; |
| 1836 | int y; |
| 1837 | int for_click; |
| 1838 | int keymaps; |
| 1839 | Lisp_Object title; |
| 1840 | char **error; |
| 1841 | { |
| 1842 | int i; |
| 1843 | LWLIB_ID menu_id; |
| 1844 | Widget menu; |
| 1845 | Arg av[2]; |
| 1846 | int ac = 0; |
| 1847 | widget_value *wv, *save_wv = 0, *first_wv = 0, *prev_wv = 0; |
| 1848 | widget_value **submenu_stack |
| 1849 | = (widget_value **) alloca (menu_items_used * sizeof (widget_value *)); |
| 1850 | Lisp_Object *subprefix_stack |
| 1851 | = (Lisp_Object *) alloca (menu_items_used * sizeof (Lisp_Object)); |
| 1852 | int submenu_depth = 0; |
| 1853 | XButtonPressedEvent dummy; |
| 1854 | |
| 1855 | int first_pane; |
| 1856 | int next_release_must_exit = 0; |
| 1857 | |
| 1858 | *error = NULL; |
| 1859 | |
| 1860 | if (menu_items_used <= MENU_ITEMS_PANE_LENGTH) |
| 1861 | { |
| 1862 | *error = "Empty menu"; |
| 1863 | return Qnil; |
| 1864 | } |
| 1865 | |
| 1866 | /* Create a tree of widget_value objects |
| 1867 | representing the panes and their items. */ |
| 1868 | wv = xmalloc_widget_value (); |
| 1869 | wv->name = "menu"; |
| 1870 | wv->value = 0; |
| 1871 | wv->enabled = 1; |
| 1872 | first_wv = wv; |
| 1873 | first_pane = 1; |
| 1874 | |
| 1875 | /* Loop over all panes and items, filling in the tree. */ |
| 1876 | i = 0; |
| 1877 | while (i < menu_items_used) |
| 1878 | { |
| 1879 | if (EQ (XVECTOR (menu_items)->contents[i], Qnil)) |
| 1880 | { |
| 1881 | submenu_stack[submenu_depth++] = save_wv; |
| 1882 | save_wv = prev_wv; |
| 1883 | prev_wv = 0; |
| 1884 | first_pane = 1; |
| 1885 | i++; |
| 1886 | } |
| 1887 | else if (EQ (XVECTOR (menu_items)->contents[i], Qlambda)) |
| 1888 | { |
| 1889 | prev_wv = save_wv; |
| 1890 | save_wv = submenu_stack[--submenu_depth]; |
| 1891 | first_pane = 0; |
| 1892 | i++; |
| 1893 | } |
| 1894 | else if (EQ (XVECTOR (menu_items)->contents[i], Qt) |
| 1895 | && submenu_depth != 0) |
| 1896 | i += MENU_ITEMS_PANE_LENGTH; |
| 1897 | /* Ignore a nil in the item list. |
| 1898 | It's meaningful only for dialog boxes. */ |
| 1899 | else if (EQ (XVECTOR (menu_items)->contents[i], Qquote)) |
| 1900 | i += 1; |
| 1901 | else if (EQ (XVECTOR (menu_items)->contents[i], Qt)) |
| 1902 | { |
| 1903 | /* Create a new pane. */ |
| 1904 | Lisp_Object pane_name, prefix; |
| 1905 | char *pane_string; |
| 1906 | pane_name = XVECTOR (menu_items)->contents[i + MENU_ITEMS_PANE_NAME]; |
| 1907 | prefix = XVECTOR (menu_items)->contents[i + MENU_ITEMS_PANE_PREFIX]; |
| 1908 | pane_string = (NILP (pane_name) |
| 1909 | ? "" : (char *) XSTRING (pane_name)->data); |
| 1910 | /* If there is just one top-level pane, put all its items directly |
| 1911 | under the top-level menu. */ |
| 1912 | if (menu_items_n_panes == 1) |
| 1913 | pane_string = ""; |
| 1914 | |
| 1915 | /* If the pane has a meaningful name, |
| 1916 | make the pane a top-level menu item |
| 1917 | with its items as a submenu beneath it. */ |
| 1918 | if (!keymaps && strcmp (pane_string, "")) |
| 1919 | { |
| 1920 | wv = xmalloc_widget_value (); |
| 1921 | if (save_wv) |
| 1922 | save_wv->next = wv; |
| 1923 | else |
| 1924 | first_wv->contents = wv; |
| 1925 | wv->name = pane_string; |
| 1926 | if (keymaps && !NILP (prefix)) |
| 1927 | wv->name++; |
| 1928 | wv->value = 0; |
| 1929 | wv->enabled = 1; |
| 1930 | save_wv = wv; |
| 1931 | prev_wv = 0; |
| 1932 | } |
| 1933 | else if (first_pane) |
| 1934 | { |
| 1935 | save_wv = wv; |
| 1936 | prev_wv = 0; |
| 1937 | } |
| 1938 | first_pane = 0; |
| 1939 | i += MENU_ITEMS_PANE_LENGTH; |
| 1940 | } |
| 1941 | else |
| 1942 | { |
| 1943 | /* Create a new item within current pane. */ |
| 1944 | Lisp_Object item_name, enable, descrip, def; |
| 1945 | item_name = XVECTOR (menu_items)->contents[i + MENU_ITEMS_ITEM_NAME]; |
| 1946 | enable = XVECTOR (menu_items)->contents[i + MENU_ITEMS_ITEM_ENABLE]; |
| 1947 | descrip |
| 1948 | = XVECTOR (menu_items)->contents[i + MENU_ITEMS_ITEM_EQUIV_KEY]; |
| 1949 | def = XVECTOR (menu_items)->contents[i + MENU_ITEMS_ITEM_DEFINITION]; |
| 1950 | |
| 1951 | wv = xmalloc_widget_value (); |
| 1952 | if (prev_wv) |
| 1953 | prev_wv->next = wv; |
| 1954 | else |
| 1955 | save_wv->contents = wv; |
| 1956 | wv->name = (char *) XSTRING (item_name)->data; |
| 1957 | if (!NILP (descrip)) |
| 1958 | wv->key = (char *) XSTRING (descrip)->data; |
| 1959 | wv->value = 0; |
| 1960 | /* If this item has a null value, |
| 1961 | make the call_data null so that it won't display a box |
| 1962 | when the mouse is on it. */ |
| 1963 | wv->call_data |
| 1964 | = (!NILP (def) ? (void *) &XVECTOR (menu_items)->contents[i] : 0); |
| 1965 | wv->enabled = !NILP (enable); |
| 1966 | prev_wv = wv; |
| 1967 | |
| 1968 | i += MENU_ITEMS_ITEM_LENGTH; |
| 1969 | } |
| 1970 | } |
| 1971 | |
| 1972 | /* Deal with the title, if it is non-nil. */ |
| 1973 | if (!NILP (title)) |
| 1974 | { |
| 1975 | widget_value *wv_title = xmalloc_widget_value (); |
| 1976 | widget_value *wv_sep1 = xmalloc_widget_value (); |
| 1977 | widget_value *wv_sep2 = xmalloc_widget_value (); |
| 1978 | |
| 1979 | wv_sep2->name = "--"; |
| 1980 | wv_sep2->next = first_wv->contents; |
| 1981 | |
| 1982 | wv_sep1->name = "--"; |
| 1983 | wv_sep1->next = wv_sep2; |
| 1984 | |
| 1985 | wv_title->name = (char *) XSTRING (title)->data; |
| 1986 | wv_title->enabled = True; |
| 1987 | wv_title->next = wv_sep1; |
| 1988 | first_wv->contents = wv_title; |
| 1989 | } |
| 1990 | |
| 1991 | /* Actually create the menu. */ |
| 1992 | menu_id = widget_id_tick++; |
| 1993 | menu = lw_create_widget ("popup", first_wv->name, menu_id, first_wv, |
| 1994 | f->output_data.x->widget, 1, 0, |
| 1995 | popup_selection_callback, |
| 1996 | popup_deactivate_callback); |
| 1997 | |
| 1998 | /* Adjust coordinates to relative to the outer (window manager) window. */ |
| 1999 | { |
| 2000 | Window child; |
| 2001 | int win_x = 0, win_y = 0; |
| 2002 | |
| 2003 | /* Find the position of the outside upper-left corner of |
| 2004 | the inner window, with respect to the outer window. */ |
| 2005 | if (f->output_data.x->parent_desc != FRAME_X_DISPLAY_INFO (f)->root_window) |
| 2006 | { |
| 2007 | BLOCK_INPUT; |
| 2008 | XTranslateCoordinates (FRAME_X_DISPLAY (f), |
| 2009 | |
| 2010 | /* From-window, to-window. */ |
| 2011 | f->output_data.x->window_desc, |
| 2012 | f->output_data.x->parent_desc, |
| 2013 | |
| 2014 | /* From-position, to-position. */ |
| 2015 | 0, 0, &win_x, &win_y, |
| 2016 | |
| 2017 | /* Child of window. */ |
| 2018 | &child); |
| 2019 | UNBLOCK_INPUT; |
| 2020 | x += win_x; |
| 2021 | y += win_y; |
| 2022 | } |
| 2023 | } |
| 2024 | |
| 2025 | /* Adjust coordinates to be root-window-relative. */ |
| 2026 | x += f->output_data.x->left_pos; |
| 2027 | y += f->output_data.x->top_pos; |
| 2028 | |
| 2029 | dummy.type = ButtonPress; |
| 2030 | dummy.serial = 0; |
| 2031 | dummy.send_event = 0; |
| 2032 | dummy.display = FRAME_X_DISPLAY (f); |
| 2033 | dummy.time = CurrentTime; |
| 2034 | dummy.root = FRAME_X_DISPLAY_INFO (f)->root_window; |
| 2035 | dummy.window = dummy.root; |
| 2036 | dummy.subwindow = dummy.root; |
| 2037 | dummy.x_root = x; |
| 2038 | dummy.y_root = y; |
| 2039 | dummy.x = x; |
| 2040 | dummy.y = y; |
| 2041 | dummy.state = (FRAME_X_DISPLAY_INFO (f)->grabbed >> 1) * Button1Mask; |
| 2042 | dummy.button = 0; |
| 2043 | for (i = 0; i < 5; i++) |
| 2044 | if (FRAME_X_DISPLAY_INFO (f)->grabbed & (1 << i)) |
| 2045 | dummy.button = i; |
| 2046 | |
| 2047 | /* Don't allow any geometry request from the user. */ |
| 2048 | XtSetArg (av[ac], XtNgeometry, 0); ac++; |
| 2049 | XtSetValues (menu, av, ac); |
| 2050 | |
| 2051 | /* Free the widget_value objects we used to specify the contents. */ |
| 2052 | free_menubar_widget_value_tree (first_wv); |
| 2053 | |
| 2054 | /* No selection has been chosen yet. */ |
| 2055 | menu_item_selection = 0; |
| 2056 | |
| 2057 | /* Display the menu. */ |
| 2058 | lw_popup_menu (menu, &dummy); |
| 2059 | popup_activated_flag = 1; |
| 2060 | |
| 2061 | /* Process events that apply to the menu. */ |
| 2062 | popup_get_selection ((XEvent *) 0, FRAME_X_DISPLAY_INFO (f), menu_id); |
| 2063 | |
| 2064 | /* fp turned off the following statement and wrote a comment |
| 2065 | that it is unnecessary--that the menu has already disappeared. |
| 2066 | Nowadays the menu disappears ok, all right, but |
| 2067 | we need to delete the widgets or multiple ones will pile up. */ |
| 2068 | lw_destroy_all_widgets (menu_id); |
| 2069 | |
| 2070 | /* Find the selected item, and its pane, to return |
| 2071 | the proper value. */ |
| 2072 | if (menu_item_selection != 0) |
| 2073 | { |
| 2074 | Lisp_Object prefix, entry; |
| 2075 | |
| 2076 | prefix = Qnil; |
| 2077 | i = 0; |
| 2078 | while (i < menu_items_used) |
| 2079 | { |
| 2080 | if (EQ (XVECTOR (menu_items)->contents[i], Qnil)) |
| 2081 | { |
| 2082 | subprefix_stack[submenu_depth++] = prefix; |
| 2083 | prefix = entry; |
| 2084 | i++; |
| 2085 | } |
| 2086 | else if (EQ (XVECTOR (menu_items)->contents[i], Qlambda)) |
| 2087 | { |
| 2088 | prefix = subprefix_stack[--submenu_depth]; |
| 2089 | i++; |
| 2090 | } |
| 2091 | else if (EQ (XVECTOR (menu_items)->contents[i], Qt)) |
| 2092 | { |
| 2093 | prefix |
| 2094 | = XVECTOR (menu_items)->contents[i + MENU_ITEMS_PANE_PREFIX]; |
| 2095 | i += MENU_ITEMS_PANE_LENGTH; |
| 2096 | } |
| 2097 | /* Ignore a nil in the item list. |
| 2098 | It's meaningful only for dialog boxes. */ |
| 2099 | else if (EQ (XVECTOR (menu_items)->contents[i], Qquote)) |
| 2100 | i += 1; |
| 2101 | else |
| 2102 | { |
| 2103 | entry |
| 2104 | = XVECTOR (menu_items)->contents[i + MENU_ITEMS_ITEM_VALUE]; |
| 2105 | if (menu_item_selection == &XVECTOR (menu_items)->contents[i]) |
| 2106 | { |
| 2107 | if (keymaps != 0) |
| 2108 | { |
| 2109 | int j; |
| 2110 | |
| 2111 | entry = Fcons (entry, Qnil); |
| 2112 | if (!NILP (prefix)) |
| 2113 | entry = Fcons (prefix, entry); |
| 2114 | for (j = submenu_depth - 1; j >= 0; j--) |
| 2115 | if (!NILP (subprefix_stack[j])) |
| 2116 | entry = Fcons (subprefix_stack[j], entry); |
| 2117 | } |
| 2118 | return entry; |
| 2119 | } |
| 2120 | i += MENU_ITEMS_ITEM_LENGTH; |
| 2121 | } |
| 2122 | } |
| 2123 | } |
| 2124 | |
| 2125 | return Qnil; |
| 2126 | } |
| 2127 | \f |
| 2128 | static void |
| 2129 | dialog_selection_callback (widget, id, client_data) |
| 2130 | Widget widget; |
| 2131 | LWLIB_ID id; |
| 2132 | XtPointer client_data; |
| 2133 | { |
| 2134 | /* The EMACS_INT cast avoids a warning. There's no problem |
| 2135 | as long as pointers have enough bits to hold small integers. */ |
| 2136 | if ((int) (EMACS_INT) client_data != -1) |
| 2137 | menu_item_selection = (Lisp_Object *) client_data; |
| 2138 | BLOCK_INPUT; |
| 2139 | lw_destroy_all_widgets (id); |
| 2140 | UNBLOCK_INPUT; |
| 2141 | popup_activated_flag = 0; |
| 2142 | } |
| 2143 | |
| 2144 | static char * button_names [] = { |
| 2145 | "button1", "button2", "button3", "button4", "button5", |
| 2146 | "button6", "button7", "button8", "button9", "button10" }; |
| 2147 | |
| 2148 | static Lisp_Object |
| 2149 | xdialog_show (f, keymaps, title, error) |
| 2150 | FRAME_PTR f; |
| 2151 | int keymaps; |
| 2152 | Lisp_Object title; |
| 2153 | char **error; |
| 2154 | { |
| 2155 | int i, nb_buttons=0; |
| 2156 | LWLIB_ID dialog_id; |
| 2157 | Widget menu; |
| 2158 | char dialog_name[6]; |
| 2159 | |
| 2160 | widget_value *wv, *save_wv = 0, *first_wv = 0, *prev_wv = 0; |
| 2161 | |
| 2162 | /* Number of elements seen so far, before boundary. */ |
| 2163 | int left_count = 0; |
| 2164 | /* 1 means we've seen the boundary between left-hand elts and right-hand. */ |
| 2165 | int boundary_seen = 0; |
| 2166 | |
| 2167 | *error = NULL; |
| 2168 | |
| 2169 | if (menu_items_n_panes > 1) |
| 2170 | { |
| 2171 | *error = "Multiple panes in dialog box"; |
| 2172 | return Qnil; |
| 2173 | } |
| 2174 | |
| 2175 | /* Create a tree of widget_value objects |
| 2176 | representing the text label and buttons. */ |
| 2177 | { |
| 2178 | Lisp_Object pane_name, prefix; |
| 2179 | char *pane_string; |
| 2180 | pane_name = XVECTOR (menu_items)->contents[MENU_ITEMS_PANE_NAME]; |
| 2181 | prefix = XVECTOR (menu_items)->contents[MENU_ITEMS_PANE_PREFIX]; |
| 2182 | pane_string = (NILP (pane_name) |
| 2183 | ? "" : (char *) XSTRING (pane_name)->data); |
| 2184 | prev_wv = xmalloc_widget_value (); |
| 2185 | prev_wv->value = pane_string; |
| 2186 | if (keymaps && !NILP (prefix)) |
| 2187 | prev_wv->name++; |
| 2188 | prev_wv->enabled = 1; |
| 2189 | prev_wv->name = "message"; |
| 2190 | first_wv = prev_wv; |
| 2191 | |
| 2192 | /* Loop over all panes and items, filling in the tree. */ |
| 2193 | i = MENU_ITEMS_PANE_LENGTH; |
| 2194 | while (i < menu_items_used) |
| 2195 | { |
| 2196 | |
| 2197 | /* Create a new item within current pane. */ |
| 2198 | Lisp_Object item_name, enable, descrip; |
| 2199 | item_name = XVECTOR (menu_items)->contents[i + MENU_ITEMS_ITEM_NAME]; |
| 2200 | enable = XVECTOR (menu_items)->contents[i + MENU_ITEMS_ITEM_ENABLE]; |
| 2201 | descrip |
| 2202 | = XVECTOR (menu_items)->contents[i + MENU_ITEMS_ITEM_EQUIV_KEY]; |
| 2203 | |
| 2204 | if (NILP (item_name)) |
| 2205 | { |
| 2206 | free_menubar_widget_value_tree (first_wv); |
| 2207 | *error = "Submenu in dialog items"; |
| 2208 | return Qnil; |
| 2209 | } |
| 2210 | if (EQ (item_name, Qquote)) |
| 2211 | { |
| 2212 | /* This is the boundary between left-side elts |
| 2213 | and right-side elts. Stop incrementing right_count. */ |
| 2214 | boundary_seen = 1; |
| 2215 | i++; |
| 2216 | continue; |
| 2217 | } |
| 2218 | if (nb_buttons >= 9) |
| 2219 | { |
| 2220 | free_menubar_widget_value_tree (first_wv); |
| 2221 | *error = "Too many dialog items"; |
| 2222 | return Qnil; |
| 2223 | } |
| 2224 | |
| 2225 | wv = xmalloc_widget_value (); |
| 2226 | prev_wv->next = wv; |
| 2227 | wv->name = (char *) button_names[nb_buttons]; |
| 2228 | if (!NILP (descrip)) |
| 2229 | wv->key = (char *) XSTRING (descrip)->data; |
| 2230 | wv->value = (char *) XSTRING (item_name)->data; |
| 2231 | wv->call_data = (void *) &XVECTOR (menu_items)->contents[i]; |
| 2232 | wv->enabled = !NILP (enable); |
| 2233 | prev_wv = wv; |
| 2234 | |
| 2235 | if (! boundary_seen) |
| 2236 | left_count++; |
| 2237 | |
| 2238 | nb_buttons++; |
| 2239 | i += MENU_ITEMS_ITEM_LENGTH; |
| 2240 | } |
| 2241 | |
| 2242 | /* If the boundary was not specified, |
| 2243 | by default put half on the left and half on the right. */ |
| 2244 | if (! boundary_seen) |
| 2245 | left_count = nb_buttons - nb_buttons / 2; |
| 2246 | |
| 2247 | wv = xmalloc_widget_value (); |
| 2248 | wv->name = dialog_name; |
| 2249 | |
| 2250 | /* Dialog boxes use a really stupid name encoding |
| 2251 | which specifies how many buttons to use |
| 2252 | and how many buttons are on the right. |
| 2253 | The Q means something also. */ |
| 2254 | dialog_name[0] = 'Q'; |
| 2255 | dialog_name[1] = '0' + nb_buttons; |
| 2256 | dialog_name[2] = 'B'; |
| 2257 | dialog_name[3] = 'R'; |
| 2258 | /* Number of buttons to put on the right. */ |
| 2259 | dialog_name[4] = '0' + nb_buttons - left_count; |
| 2260 | dialog_name[5] = 0; |
| 2261 | wv->contents = first_wv; |
| 2262 | first_wv = wv; |
| 2263 | } |
| 2264 | |
| 2265 | /* Actually create the dialog. */ |
| 2266 | dialog_id = widget_id_tick++; |
| 2267 | menu = lw_create_widget (first_wv->name, "dialog", dialog_id, first_wv, |
| 2268 | f->output_data.x->widget, 1, 0, |
| 2269 | dialog_selection_callback, 0); |
| 2270 | lw_modify_all_widgets (dialog_id, first_wv->contents, True); |
| 2271 | /* Free the widget_value objects we used to specify the contents. */ |
| 2272 | free_menubar_widget_value_tree (first_wv); |
| 2273 | |
| 2274 | /* No selection has been chosen yet. */ |
| 2275 | menu_item_selection = 0; |
| 2276 | |
| 2277 | /* Display the menu. */ |
| 2278 | lw_pop_up_all_widgets (dialog_id); |
| 2279 | popup_activated_flag = 1; |
| 2280 | |
| 2281 | /* Process events that apply to the menu. */ |
| 2282 | popup_get_selection ((XEvent *) 0, FRAME_X_DISPLAY_INFO (f), dialog_id); |
| 2283 | |
| 2284 | lw_destroy_all_widgets (dialog_id); |
| 2285 | |
| 2286 | /* Find the selected item, and its pane, to return |
| 2287 | the proper value. */ |
| 2288 | if (menu_item_selection != 0) |
| 2289 | { |
| 2290 | Lisp_Object prefix; |
| 2291 | |
| 2292 | prefix = Qnil; |
| 2293 | i = 0; |
| 2294 | while (i < menu_items_used) |
| 2295 | { |
| 2296 | Lisp_Object entry; |
| 2297 | |
| 2298 | if (EQ (XVECTOR (menu_items)->contents[i], Qt)) |
| 2299 | { |
| 2300 | prefix |
| 2301 | = XVECTOR (menu_items)->contents[i + MENU_ITEMS_PANE_PREFIX]; |
| 2302 | i += MENU_ITEMS_PANE_LENGTH; |
| 2303 | } |
| 2304 | else |
| 2305 | { |
| 2306 | entry |
| 2307 | = XVECTOR (menu_items)->contents[i + MENU_ITEMS_ITEM_VALUE]; |
| 2308 | if (menu_item_selection == &XVECTOR (menu_items)->contents[i]) |
| 2309 | { |
| 2310 | if (keymaps != 0) |
| 2311 | { |
| 2312 | entry = Fcons (entry, Qnil); |
| 2313 | if (!NILP (prefix)) |
| 2314 | entry = Fcons (prefix, entry); |
| 2315 | } |
| 2316 | return entry; |
| 2317 | } |
| 2318 | i += MENU_ITEMS_ITEM_LENGTH; |
| 2319 | } |
| 2320 | } |
| 2321 | } |
| 2322 | |
| 2323 | return Qnil; |
| 2324 | } |
| 2325 | #else /* not USE_X_TOOLKIT */ |
| 2326 | |
| 2327 | static Lisp_Object |
| 2328 | xmenu_show (f, x, y, for_click, keymaps, title, error) |
| 2329 | FRAME_PTR f; |
| 2330 | int x, y; |
| 2331 | int for_click; |
| 2332 | int keymaps; |
| 2333 | Lisp_Object title; |
| 2334 | char **error; |
| 2335 | { |
| 2336 | Window root; |
| 2337 | XMenu *menu; |
| 2338 | int pane, selidx, lpane, status; |
| 2339 | Lisp_Object entry, pane_prefix; |
| 2340 | char *datap; |
| 2341 | int ulx, uly, width, height; |
| 2342 | int dispwidth, dispheight; |
| 2343 | int i, j; |
| 2344 | int maxwidth; |
| 2345 | int dummy_int; |
| 2346 | unsigned int dummy_uint; |
| 2347 | |
| 2348 | *error = 0; |
| 2349 | if (menu_items_n_panes == 0) |
| 2350 | return Qnil; |
| 2351 | |
| 2352 | if (menu_items_used <= MENU_ITEMS_PANE_LENGTH) |
| 2353 | { |
| 2354 | *error = "Empty menu"; |
| 2355 | return Qnil; |
| 2356 | } |
| 2357 | |
| 2358 | /* Figure out which root window F is on. */ |
| 2359 | XGetGeometry (FRAME_X_DISPLAY (f), FRAME_X_WINDOW (f), &root, |
| 2360 | &dummy_int, &dummy_int, &dummy_uint, &dummy_uint, |
| 2361 | &dummy_uint, &dummy_uint); |
| 2362 | |
| 2363 | /* Make the menu on that window. */ |
| 2364 | menu = XMenuCreate (FRAME_X_DISPLAY (f), root, "emacs"); |
| 2365 | if (menu == NULL) |
| 2366 | { |
| 2367 | *error = "Can't create menu"; |
| 2368 | return Qnil; |
| 2369 | } |
| 2370 | |
| 2371 | #ifdef HAVE_X_WINDOWS |
| 2372 | /* Adjust coordinates to relative to the outer (window manager) window. */ |
| 2373 | { |
| 2374 | Window child; |
| 2375 | int win_x = 0, win_y = 0; |
| 2376 | |
| 2377 | /* Find the position of the outside upper-left corner of |
| 2378 | the inner window, with respect to the outer window. */ |
| 2379 | if (f->output_data.x->parent_desc != FRAME_X_DISPLAY_INFO (f)->root_window) |
| 2380 | { |
| 2381 | BLOCK_INPUT; |
| 2382 | XTranslateCoordinates (FRAME_X_DISPLAY (f), |
| 2383 | |
| 2384 | /* From-window, to-window. */ |
| 2385 | f->output_data.x->window_desc, |
| 2386 | f->output_data.x->parent_desc, |
| 2387 | |
| 2388 | /* From-position, to-position. */ |
| 2389 | 0, 0, &win_x, &win_y, |
| 2390 | |
| 2391 | /* Child of window. */ |
| 2392 | &child); |
| 2393 | UNBLOCK_INPUT; |
| 2394 | x += win_x; |
| 2395 | y += win_y; |
| 2396 | } |
| 2397 | } |
| 2398 | #endif /* HAVE_X_WINDOWS */ |
| 2399 | |
| 2400 | /* Adjust coordinates to be root-window-relative. */ |
| 2401 | x += f->output_data.x->left_pos; |
| 2402 | y += f->output_data.x->top_pos; |
| 2403 | |
| 2404 | /* Create all the necessary panes and their items. */ |
| 2405 | i = 0; |
| 2406 | while (i < menu_items_used) |
| 2407 | { |
| 2408 | if (EQ (XVECTOR (menu_items)->contents[i], Qt)) |
| 2409 | { |
| 2410 | /* Create a new pane. */ |
| 2411 | Lisp_Object pane_name, prefix; |
| 2412 | char *pane_string; |
| 2413 | |
| 2414 | pane_name = XVECTOR (menu_items)->contents[i + MENU_ITEMS_PANE_NAME]; |
| 2415 | prefix = XVECTOR (menu_items)->contents[i + MENU_ITEMS_PANE_PREFIX]; |
| 2416 | pane_string = (NILP (pane_name) |
| 2417 | ? "" : (char *) XSTRING (pane_name)->data); |
| 2418 | if (keymaps && !NILP (prefix)) |
| 2419 | pane_string++; |
| 2420 | |
| 2421 | lpane = XMenuAddPane (FRAME_X_DISPLAY (f), menu, pane_string, TRUE); |
| 2422 | if (lpane == XM_FAILURE) |
| 2423 | { |
| 2424 | XMenuDestroy (FRAME_X_DISPLAY (f), menu); |
| 2425 | *error = "Can't create pane"; |
| 2426 | return Qnil; |
| 2427 | } |
| 2428 | i += MENU_ITEMS_PANE_LENGTH; |
| 2429 | |
| 2430 | /* Find the width of the widest item in this pane. */ |
| 2431 | maxwidth = 0; |
| 2432 | j = i; |
| 2433 | while (j < menu_items_used) |
| 2434 | { |
| 2435 | Lisp_Object item; |
| 2436 | item = XVECTOR (menu_items)->contents[j]; |
| 2437 | if (EQ (item, Qt)) |
| 2438 | break; |
| 2439 | if (NILP (item)) |
| 2440 | { |
| 2441 | j++; |
| 2442 | continue; |
| 2443 | } |
| 2444 | width = STRING_BYTES (XSTRING (item)); |
| 2445 | if (width > maxwidth) |
| 2446 | maxwidth = width; |
| 2447 | |
| 2448 | j += MENU_ITEMS_ITEM_LENGTH; |
| 2449 | } |
| 2450 | } |
| 2451 | /* Ignore a nil in the item list. |
| 2452 | It's meaningful only for dialog boxes. */ |
| 2453 | else if (EQ (XVECTOR (menu_items)->contents[i], Qquote)) |
| 2454 | i += 1; |
| 2455 | else |
| 2456 | { |
| 2457 | /* Create a new item within current pane. */ |
| 2458 | Lisp_Object item_name, enable, descrip; |
| 2459 | unsigned char *item_data; |
| 2460 | |
| 2461 | item_name = XVECTOR (menu_items)->contents[i + MENU_ITEMS_ITEM_NAME]; |
| 2462 | enable = XVECTOR (menu_items)->contents[i + MENU_ITEMS_ITEM_ENABLE]; |
| 2463 | descrip |
| 2464 | = XVECTOR (menu_items)->contents[i + MENU_ITEMS_ITEM_EQUIV_KEY]; |
| 2465 | if (!NILP (descrip)) |
| 2466 | { |
| 2467 | int gap = maxwidth - STRING_BYTES (XSTRING (item_name)); |
| 2468 | #ifdef C_ALLOCA |
| 2469 | Lisp_Object spacer; |
| 2470 | spacer = Fmake_string (make_number (gap), make_number (' ')); |
| 2471 | item_name = concat2 (item_name, spacer); |
| 2472 | item_name = concat2 (item_name, descrip); |
| 2473 | item_data = XSTRING (item_name)->data; |
| 2474 | #else |
| 2475 | /* if alloca is fast, use that to make the space, |
| 2476 | to reduce gc needs. */ |
| 2477 | item_data |
| 2478 | = (unsigned char *) alloca (maxwidth |
| 2479 | + STRING_BYTES (XSTRING (descrip)) + 1); |
| 2480 | bcopy (XSTRING (item_name)->data, item_data, |
| 2481 | STRING_BYTES (XSTRING (item_name))); |
| 2482 | for (j = XSTRING (item_name)->size; j < maxwidth; j++) |
| 2483 | item_data[j] = ' '; |
| 2484 | bcopy (XSTRING (descrip)->data, item_data + j, |
| 2485 | STRING_BYTES (XSTRING (descrip))); |
| 2486 | item_data[j + STRING_BYTES (XSTRING (descrip))] = 0; |
| 2487 | #endif |
| 2488 | } |
| 2489 | else |
| 2490 | item_data = XSTRING (item_name)->data; |
| 2491 | |
| 2492 | if (XMenuAddSelection (FRAME_X_DISPLAY (f), |
| 2493 | menu, lpane, 0, item_data, |
| 2494 | !NILP (enable)) |
| 2495 | == XM_FAILURE) |
| 2496 | { |
| 2497 | XMenuDestroy (FRAME_X_DISPLAY (f), menu); |
| 2498 | *error = "Can't add selection to menu"; |
| 2499 | return Qnil; |
| 2500 | } |
| 2501 | i += MENU_ITEMS_ITEM_LENGTH; |
| 2502 | } |
| 2503 | } |
| 2504 | |
| 2505 | /* All set and ready to fly. */ |
| 2506 | XMenuRecompute (FRAME_X_DISPLAY (f), menu); |
| 2507 | dispwidth = DisplayWidth (FRAME_X_DISPLAY (f), |
| 2508 | XScreenNumberOfScreen (FRAME_X_SCREEN (f))); |
| 2509 | dispheight = DisplayHeight (FRAME_X_DISPLAY (f), |
| 2510 | XScreenNumberOfScreen (FRAME_X_SCREEN (f))); |
| 2511 | x = min (x, dispwidth); |
| 2512 | y = min (y, dispheight); |
| 2513 | x = max (x, 1); |
| 2514 | y = max (y, 1); |
| 2515 | XMenuLocate (FRAME_X_DISPLAY (f), menu, 0, 0, x, y, |
| 2516 | &ulx, &uly, &width, &height); |
| 2517 | if (ulx+width > dispwidth) |
| 2518 | { |
| 2519 | x -= (ulx + width) - dispwidth; |
| 2520 | ulx = dispwidth - width; |
| 2521 | } |
| 2522 | if (uly+height > dispheight) |
| 2523 | { |
| 2524 | y -= (uly + height) - dispheight; |
| 2525 | uly = dispheight - height; |
| 2526 | } |
| 2527 | if (ulx < 0) x -= ulx; |
| 2528 | if (uly < 0) y -= uly; |
| 2529 | |
| 2530 | XMenuSetAEQ (menu, TRUE); |
| 2531 | XMenuSetFreeze (menu, TRUE); |
| 2532 | pane = selidx = 0; |
| 2533 | |
| 2534 | status = XMenuActivate (FRAME_X_DISPLAY (f), menu, &pane, &selidx, |
| 2535 | x, y, ButtonReleaseMask, &datap); |
| 2536 | |
| 2537 | |
| 2538 | #ifdef HAVE_X_WINDOWS |
| 2539 | /* Assume the mouse has moved out of the X window. |
| 2540 | If it has actually moved in, we will get an EnterNotify. */ |
| 2541 | x_mouse_leave (FRAME_X_DISPLAY_INFO (f)); |
| 2542 | #endif |
| 2543 | |
| 2544 | switch (status) |
| 2545 | { |
| 2546 | case XM_SUCCESS: |
| 2547 | #ifdef XDEBUG |
| 2548 | fprintf (stderr, "pane= %d line = %d\n", panes, selidx); |
| 2549 | #endif |
| 2550 | |
| 2551 | /* Find the item number SELIDX in pane number PANE. */ |
| 2552 | i = 0; |
| 2553 | while (i < menu_items_used) |
| 2554 | { |
| 2555 | if (EQ (XVECTOR (menu_items)->contents[i], Qt)) |
| 2556 | { |
| 2557 | if (pane == 0) |
| 2558 | pane_prefix |
| 2559 | = XVECTOR (menu_items)->contents[i + MENU_ITEMS_PANE_PREFIX]; |
| 2560 | pane--; |
| 2561 | i += MENU_ITEMS_PANE_LENGTH; |
| 2562 | } |
| 2563 | else |
| 2564 | { |
| 2565 | if (pane == -1) |
| 2566 | { |
| 2567 | if (selidx == 0) |
| 2568 | { |
| 2569 | entry |
| 2570 | = XVECTOR (menu_items)->contents[i + MENU_ITEMS_ITEM_VALUE]; |
| 2571 | if (keymaps != 0) |
| 2572 | { |
| 2573 | entry = Fcons (entry, Qnil); |
| 2574 | if (!NILP (pane_prefix)) |
| 2575 | entry = Fcons (pane_prefix, entry); |
| 2576 | } |
| 2577 | break; |
| 2578 | } |
| 2579 | selidx--; |
| 2580 | } |
| 2581 | i += MENU_ITEMS_ITEM_LENGTH; |
| 2582 | } |
| 2583 | } |
| 2584 | break; |
| 2585 | |
| 2586 | case XM_FAILURE: |
| 2587 | *error = "Can't activate menu"; |
| 2588 | case XM_IA_SELECT: |
| 2589 | case XM_NO_SELECT: |
| 2590 | entry = Qnil; |
| 2591 | break; |
| 2592 | } |
| 2593 | XMenuDestroy (FRAME_X_DISPLAY (f), menu); |
| 2594 | |
| 2595 | #ifdef HAVE_X_WINDOWS |
| 2596 | /* State that no mouse buttons are now held. |
| 2597 | (The oldXMenu code doesn't track this info for us.) |
| 2598 | That is not necessarily true, but the fiction leads to reasonable |
| 2599 | results, and it is a pain to ask which are actually held now. */ |
| 2600 | FRAME_X_DISPLAY_INFO (f)->grabbed = 0; |
| 2601 | #endif |
| 2602 | |
| 2603 | return entry; |
| 2604 | } |
| 2605 | |
| 2606 | #endif /* not USE_X_TOOLKIT */ |
| 2607 | |
| 2608 | #endif /* HAVE_MENUS */ |
| 2609 | \f |
| 2610 | void |
| 2611 | syms_of_xmenu () |
| 2612 | { |
| 2613 | staticpro (&menu_items); |
| 2614 | menu_items = Qnil; |
| 2615 | |
| 2616 | Qdebug_on_next_call = intern ("debug-on-next-call"); |
| 2617 | staticpro (&Qdebug_on_next_call); |
| 2618 | |
| 2619 | DEFVAR_LISP ("menu-updating-frame", &Vmenu_updating_frame, |
| 2620 | "Frame for which we are updating a menu.\n\ |
| 2621 | The enable predicate for a menu command should check this variable."); |
| 2622 | Vmenu_updating_frame = Qnil; |
| 2623 | |
| 2624 | #ifdef USE_X_TOOLKIT |
| 2625 | widget_id_tick = (1<<16); |
| 2626 | next_menubar_widget_id = 1; |
| 2627 | #endif |
| 2628 | |
| 2629 | defsubr (&Sx_popup_menu); |
| 2630 | #ifdef HAVE_MENUS |
| 2631 | defsubr (&Sx_popup_dialog); |
| 2632 | #endif |
| 2633 | } |