| 1 | /* Menu support for GNU Emacs on the Microsoft W32 API. |
| 2 | Copyright (C) 1986, 1988, 1993, 1994, 1996, 1998, 1999, 2002, 2003, |
| 3 | 2004, 2005, 2006 Free Software Foundation, Inc. |
| 4 | |
| 5 | This file is part of GNU Emacs. |
| 6 | |
| 7 | GNU Emacs is free software; you can redistribute it and/or modify |
| 8 | it under the terms of the GNU General Public License as published by |
| 9 | the Free Software Foundation; either version 2, or (at your option) |
| 10 | any later version. |
| 11 | |
| 12 | GNU Emacs is distributed in the hope that it will be useful, |
| 13 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 15 | GNU General Public License for more details. |
| 16 | |
| 17 | You should have received a copy of the GNU General Public License |
| 18 | along with GNU Emacs; see the file COPYING. If not, write to |
| 19 | the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, |
| 20 | Boston, MA 02110-1301, USA. */ |
| 21 | |
| 22 | #include <config.h> |
| 23 | #include <signal.h> |
| 24 | |
| 25 | #include <stdio.h> |
| 26 | #include "lisp.h" |
| 27 | #include "termhooks.h" |
| 28 | #include "keyboard.h" |
| 29 | #include "keymap.h" |
| 30 | #include "frame.h" |
| 31 | #include "window.h" |
| 32 | #include "blockinput.h" |
| 33 | #include "buffer.h" |
| 34 | #include "charset.h" |
| 35 | #include "coding.h" |
| 36 | |
| 37 | /* This may include sys/types.h, and that somehow loses |
| 38 | if this is not done before the other system files. */ |
| 39 | #include "w32term.h" |
| 40 | |
| 41 | /* Load sys/types.h if not already loaded. |
| 42 | In some systems loading it twice is suicidal. */ |
| 43 | #ifndef makedev |
| 44 | #include <sys/types.h> |
| 45 | #endif |
| 46 | |
| 47 | #include "dispextern.h" |
| 48 | |
| 49 | #undef HAVE_DIALOGS /* TODO: Implement native dialogs. */ |
| 50 | |
| 51 | /******************************************************************/ |
| 52 | /* Definitions copied from lwlib.h */ |
| 53 | |
| 54 | typedef void * XtPointer; |
| 55 | typedef char Boolean; |
| 56 | |
| 57 | enum button_type |
| 58 | { |
| 59 | BUTTON_TYPE_NONE, |
| 60 | BUTTON_TYPE_TOGGLE, |
| 61 | BUTTON_TYPE_RADIO |
| 62 | }; |
| 63 | |
| 64 | /* This structure is based on the one in ../lwlib/lwlib.h, modified |
| 65 | for Windows. */ |
| 66 | typedef struct _widget_value |
| 67 | { |
| 68 | /* name of widget */ |
| 69 | Lisp_Object lname; |
| 70 | char* name; |
| 71 | /* value (meaning depend on widget type) */ |
| 72 | char* value; |
| 73 | /* keyboard equivalent. no implications for XtTranslations */ |
| 74 | Lisp_Object lkey; |
| 75 | char* key; |
| 76 | /* Help string or nil if none. |
| 77 | GC finds this string through the frame's menu_bar_vector |
| 78 | or through menu_items. */ |
| 79 | Lisp_Object help; |
| 80 | /* true if enabled */ |
| 81 | Boolean enabled; |
| 82 | /* true if selected */ |
| 83 | Boolean selected; |
| 84 | /* The type of a button. */ |
| 85 | enum button_type button_type; |
| 86 | /* true if menu title */ |
| 87 | Boolean title; |
| 88 | #if 0 |
| 89 | /* true if was edited (maintained by get_value) */ |
| 90 | Boolean edited; |
| 91 | /* true if has changed (maintained by lw library) */ |
| 92 | change_type change; |
| 93 | /* true if this widget itself has changed, |
| 94 | but not counting the other widgets found in the `next' field. */ |
| 95 | change_type this_one_change; |
| 96 | #endif |
| 97 | /* Contents of the sub-widgets, also selected slot for checkbox */ |
| 98 | struct _widget_value* contents; |
| 99 | /* data passed to callback */ |
| 100 | XtPointer call_data; |
| 101 | /* next one in the list */ |
| 102 | struct _widget_value* next; |
| 103 | #if 0 |
| 104 | /* slot for the toolkit dependent part. Always initialize to NULL. */ |
| 105 | void* toolkit_data; |
| 106 | /* tell us if we should free the toolkit data slot when freeing the |
| 107 | widget_value itself. */ |
| 108 | Boolean free_toolkit_data; |
| 109 | |
| 110 | /* we resource the widget_value structures; this points to the next |
| 111 | one on the free list if this one has been deallocated. |
| 112 | */ |
| 113 | struct _widget_value *free_list; |
| 114 | #endif |
| 115 | } widget_value; |
| 116 | |
| 117 | /* Local memory management */ |
| 118 | #define local_heap (GetProcessHeap ()) |
| 119 | #define local_alloc(n) (HeapAlloc (local_heap, HEAP_ZERO_MEMORY, (n))) |
| 120 | #define local_free(p) (HeapFree (local_heap, 0, ((LPVOID) (p)))) |
| 121 | |
| 122 | #define malloc_widget_value() ((widget_value *) local_alloc (sizeof (widget_value))) |
| 123 | #define free_widget_value(wv) (local_free ((wv))) |
| 124 | |
| 125 | /******************************************************************/ |
| 126 | |
| 127 | #ifndef TRUE |
| 128 | #define TRUE 1 |
| 129 | #define FALSE 0 |
| 130 | #endif /* no TRUE */ |
| 131 | |
| 132 | static HMENU current_popup_menu; |
| 133 | |
| 134 | void syms_of_w32menu (); |
| 135 | void globals_of_w32menu (); |
| 136 | |
| 137 | typedef BOOL (WINAPI * GetMenuItemInfoA_Proc) ( |
| 138 | IN HMENU, |
| 139 | IN UINT, |
| 140 | IN BOOL, |
| 141 | IN OUT LPMENUITEMINFOA); |
| 142 | typedef BOOL (WINAPI * SetMenuItemInfoA_Proc) ( |
| 143 | IN HMENU, |
| 144 | IN UINT, |
| 145 | IN BOOL, |
| 146 | IN LPCMENUITEMINFOA); |
| 147 | |
| 148 | GetMenuItemInfoA_Proc get_menu_item_info = NULL; |
| 149 | SetMenuItemInfoA_Proc set_menu_item_info = NULL; |
| 150 | AppendMenuW_Proc unicode_append_menu = NULL; |
| 151 | |
| 152 | Lisp_Object Vmenu_updating_frame; |
| 153 | |
| 154 | Lisp_Object Qdebug_on_next_call; |
| 155 | |
| 156 | extern Lisp_Object Qmenu_bar; |
| 157 | |
| 158 | extern Lisp_Object QCtoggle, QCradio; |
| 159 | |
| 160 | extern Lisp_Object Voverriding_local_map; |
| 161 | extern Lisp_Object Voverriding_local_map_menu_flag; |
| 162 | |
| 163 | extern Lisp_Object Qoverriding_local_map, Qoverriding_terminal_local_map; |
| 164 | |
| 165 | extern Lisp_Object Qmenu_bar_update_hook; |
| 166 | |
| 167 | void set_frame_menubar (); |
| 168 | |
| 169 | static void push_menu_item P_ ((Lisp_Object, Lisp_Object, Lisp_Object, |
| 170 | Lisp_Object, Lisp_Object, Lisp_Object, |
| 171 | Lisp_Object, Lisp_Object)); |
| 172 | #ifdef HAVE_DIALOGS |
| 173 | static Lisp_Object w32_dialog_show (); |
| 174 | #endif |
| 175 | static Lisp_Object w32_menu_show (); |
| 176 | |
| 177 | static void keymap_panes (); |
| 178 | static void single_keymap_panes (); |
| 179 | static void single_menu_item (); |
| 180 | static void list_of_panes (); |
| 181 | static void list_of_items (); |
| 182 | void w32_free_menu_strings (HWND); |
| 183 | \f |
| 184 | /* This holds a Lisp vector that holds the results of decoding |
| 185 | the keymaps or alist-of-alists that specify a menu. |
| 186 | |
| 187 | It describes the panes and items within the panes. |
| 188 | |
| 189 | Each pane is described by 3 elements in the vector: |
| 190 | t, the pane name, the pane's prefix key. |
| 191 | Then follow the pane's items, with 5 elements per item: |
| 192 | the item string, the enable flag, the item's value, |
| 193 | the definition, and the equivalent keyboard key's description string. |
| 194 | |
| 195 | In some cases, multiple levels of menus may be described. |
| 196 | A single vector slot containing nil indicates the start of a submenu. |
| 197 | A single vector slot containing lambda indicates the end of a submenu. |
| 198 | The submenu follows a menu item which is the way to reach the submenu. |
| 199 | |
| 200 | A single vector slot containing quote indicates that the |
| 201 | following items should appear on the right of a dialog box. |
| 202 | |
| 203 | Using a Lisp vector to hold this information while we decode it |
| 204 | takes care of protecting all the data from GC. */ |
| 205 | |
| 206 | #define MENU_ITEMS_PANE_NAME 1 |
| 207 | #define MENU_ITEMS_PANE_PREFIX 2 |
| 208 | #define MENU_ITEMS_PANE_LENGTH 3 |
| 209 | |
| 210 | enum menu_item_idx |
| 211 | { |
| 212 | MENU_ITEMS_ITEM_NAME = 0, |
| 213 | MENU_ITEMS_ITEM_ENABLE, |
| 214 | MENU_ITEMS_ITEM_VALUE, |
| 215 | MENU_ITEMS_ITEM_EQUIV_KEY, |
| 216 | MENU_ITEMS_ITEM_DEFINITION, |
| 217 | MENU_ITEMS_ITEM_TYPE, |
| 218 | MENU_ITEMS_ITEM_SELECTED, |
| 219 | MENU_ITEMS_ITEM_HELP, |
| 220 | MENU_ITEMS_ITEM_LENGTH |
| 221 | }; |
| 222 | |
| 223 | static Lisp_Object menu_items; |
| 224 | |
| 225 | /* Number of slots currently allocated in menu_items. */ |
| 226 | static int menu_items_allocated; |
| 227 | |
| 228 | /* This is the index in menu_items of the first empty slot. */ |
| 229 | static int menu_items_used; |
| 230 | |
| 231 | /* The number of panes currently recorded in menu_items, |
| 232 | excluding those within submenus. */ |
| 233 | static int menu_items_n_panes; |
| 234 | |
| 235 | /* Current depth within submenus. */ |
| 236 | static int menu_items_submenu_depth; |
| 237 | |
| 238 | /* Flag which when set indicates a dialog or menu has been posted by |
| 239 | Xt on behalf of one of the widget sets. */ |
| 240 | static int popup_activated_flag; |
| 241 | |
| 242 | static int next_menubar_widget_id; |
| 243 | |
| 244 | /* This is set nonzero after the user activates the menu bar, and set |
| 245 | to zero again after the menu bars are redisplayed by prepare_menu_bar. |
| 246 | While it is nonzero, all calls to set_frame_menubar go deep. |
| 247 | |
| 248 | I don't understand why this is needed, but it does seem to be |
| 249 | needed on Motif, according to Marcus Daniels <marcus@sysc.pdx.edu>. */ |
| 250 | |
| 251 | int pending_menu_activation; |
| 252 | \f |
| 253 | |
| 254 | /* Return the frame whose ->output_data.w32->menubar_widget equals |
| 255 | ID, or 0 if none. */ |
| 256 | |
| 257 | static struct frame * |
| 258 | menubar_id_to_frame (id) |
| 259 | HMENU id; |
| 260 | { |
| 261 | Lisp_Object tail, frame; |
| 262 | FRAME_PTR f; |
| 263 | |
| 264 | for (tail = Vframe_list; GC_CONSP (tail); tail = XCDR (tail)) |
| 265 | { |
| 266 | frame = XCAR (tail); |
| 267 | if (!GC_FRAMEP (frame)) |
| 268 | continue; |
| 269 | f = XFRAME (frame); |
| 270 | if (!FRAME_WINDOW_P (f)) |
| 271 | continue; |
| 272 | if (f->output_data.w32->menubar_widget == id) |
| 273 | return f; |
| 274 | } |
| 275 | return 0; |
| 276 | } |
| 277 | \f |
| 278 | /* Initialize the menu_items structure if we haven't already done so. |
| 279 | Also mark it as currently empty. */ |
| 280 | |
| 281 | static void |
| 282 | init_menu_items () |
| 283 | { |
| 284 | if (NILP (menu_items)) |
| 285 | { |
| 286 | menu_items_allocated = 60; |
| 287 | menu_items = Fmake_vector (make_number (menu_items_allocated), Qnil); |
| 288 | } |
| 289 | |
| 290 | menu_items_used = 0; |
| 291 | menu_items_n_panes = 0; |
| 292 | menu_items_submenu_depth = 0; |
| 293 | } |
| 294 | |
| 295 | /* Call at the end of generating the data in menu_items. |
| 296 | This fills in the number of items in the last pane. */ |
| 297 | |
| 298 | static void |
| 299 | finish_menu_items () |
| 300 | { |
| 301 | } |
| 302 | |
| 303 | /* Call when finished using the data for the current menu |
| 304 | in menu_items. */ |
| 305 | |
| 306 | static void |
| 307 | discard_menu_items () |
| 308 | { |
| 309 | /* Free the structure if it is especially large. |
| 310 | Otherwise, hold on to it, to save time. */ |
| 311 | if (menu_items_allocated > 200) |
| 312 | { |
| 313 | menu_items = Qnil; |
| 314 | menu_items_allocated = 0; |
| 315 | } |
| 316 | } |
| 317 | |
| 318 | /* Make the menu_items vector twice as large. */ |
| 319 | |
| 320 | static void |
| 321 | grow_menu_items () |
| 322 | { |
| 323 | Lisp_Object old; |
| 324 | int old_size = menu_items_allocated; |
| 325 | old = menu_items; |
| 326 | |
| 327 | menu_items_allocated *= 2; |
| 328 | menu_items = Fmake_vector (make_number (menu_items_allocated), Qnil); |
| 329 | bcopy (XVECTOR (old)->contents, XVECTOR (menu_items)->contents, |
| 330 | old_size * sizeof (Lisp_Object)); |
| 331 | } |
| 332 | |
| 333 | /* Begin a submenu. */ |
| 334 | |
| 335 | static void |
| 336 | push_submenu_start () |
| 337 | { |
| 338 | if (menu_items_used + 1 > menu_items_allocated) |
| 339 | grow_menu_items (); |
| 340 | |
| 341 | ASET (menu_items, menu_items_used++, Qnil); |
| 342 | menu_items_submenu_depth++; |
| 343 | } |
| 344 | |
| 345 | /* End a submenu. */ |
| 346 | |
| 347 | static void |
| 348 | push_submenu_end () |
| 349 | { |
| 350 | if (menu_items_used + 1 > menu_items_allocated) |
| 351 | grow_menu_items (); |
| 352 | |
| 353 | ASET (menu_items, menu_items_used++, Qlambda); |
| 354 | menu_items_submenu_depth--; |
| 355 | } |
| 356 | |
| 357 | /* Indicate boundary between left and right. */ |
| 358 | |
| 359 | static void |
| 360 | push_left_right_boundary () |
| 361 | { |
| 362 | if (menu_items_used + 1 > menu_items_allocated) |
| 363 | grow_menu_items (); |
| 364 | |
| 365 | ASET (menu_items, menu_items_used++, Qquote); |
| 366 | } |
| 367 | |
| 368 | /* Start a new menu pane in menu_items. |
| 369 | NAME is the pane name. PREFIX_VEC is a prefix key for this pane. */ |
| 370 | |
| 371 | static void |
| 372 | push_menu_pane (name, prefix_vec) |
| 373 | Lisp_Object name, prefix_vec; |
| 374 | { |
| 375 | if (menu_items_used + MENU_ITEMS_PANE_LENGTH > menu_items_allocated) |
| 376 | grow_menu_items (); |
| 377 | |
| 378 | if (menu_items_submenu_depth == 0) |
| 379 | menu_items_n_panes++; |
| 380 | ASET (menu_items, menu_items_used++, Qt); |
| 381 | ASET (menu_items, menu_items_used++, name); |
| 382 | ASET (menu_items, menu_items_used++, prefix_vec); |
| 383 | } |
| 384 | |
| 385 | /* Push one menu item into the current pane. NAME is the string to |
| 386 | display. ENABLE if non-nil means this item can be selected. KEY |
| 387 | is the key generated by choosing this item, or nil if this item |
| 388 | doesn't really have a definition. DEF is the definition of this |
| 389 | item. EQUIV is the textual description of the keyboard equivalent |
| 390 | for this item (or nil if none). TYPE is the type of this menu |
| 391 | item, one of nil, `toggle' or `radio'. */ |
| 392 | |
| 393 | static void |
| 394 | push_menu_item (name, enable, key, def, equiv, type, selected, help) |
| 395 | Lisp_Object name, enable, key, def, equiv, type, selected, help; |
| 396 | { |
| 397 | if (menu_items_used + MENU_ITEMS_ITEM_LENGTH > menu_items_allocated) |
| 398 | grow_menu_items (); |
| 399 | |
| 400 | ASET (menu_items, menu_items_used++, name); |
| 401 | ASET (menu_items, menu_items_used++, enable); |
| 402 | ASET (menu_items, menu_items_used++, key); |
| 403 | ASET (menu_items, menu_items_used++, equiv); |
| 404 | ASET (menu_items, menu_items_used++, def); |
| 405 | ASET (menu_items, menu_items_used++, type); |
| 406 | ASET (menu_items, menu_items_used++, selected); |
| 407 | ASET (menu_items, menu_items_used++, help); |
| 408 | } |
| 409 | \f |
| 410 | /* Look through KEYMAPS, a vector of keymaps that is NMAPS long, |
| 411 | and generate menu panes for them in menu_items. |
| 412 | If NOTREAL is nonzero, |
| 413 | don't bother really computing whether an item is enabled. */ |
| 414 | |
| 415 | static void |
| 416 | keymap_panes (keymaps, nmaps, notreal) |
| 417 | Lisp_Object *keymaps; |
| 418 | int nmaps; |
| 419 | int notreal; |
| 420 | { |
| 421 | int mapno; |
| 422 | |
| 423 | init_menu_items (); |
| 424 | |
| 425 | /* Loop over the given keymaps, making a pane for each map. |
| 426 | But don't make a pane that is empty--ignore that map instead. |
| 427 | P is the number of panes we have made so far. */ |
| 428 | for (mapno = 0; mapno < nmaps; mapno++) |
| 429 | single_keymap_panes (keymaps[mapno], |
| 430 | Fkeymap_prompt (keymaps[mapno]), Qnil, notreal, 10); |
| 431 | |
| 432 | finish_menu_items (); |
| 433 | } |
| 434 | |
| 435 | /* This is a recursive subroutine of keymap_panes. |
| 436 | It handles one keymap, KEYMAP. |
| 437 | The other arguments are passed along |
| 438 | or point to local variables of the previous function. |
| 439 | If NOTREAL is nonzero, only check for equivalent key bindings, don't |
| 440 | evaluate expressions in menu items and don't make any menu. |
| 441 | |
| 442 | If we encounter submenus deeper than MAXDEPTH levels, ignore them. */ |
| 443 | |
| 444 | static void |
| 445 | single_keymap_panes (keymap, pane_name, prefix, notreal, maxdepth) |
| 446 | Lisp_Object keymap; |
| 447 | Lisp_Object pane_name; |
| 448 | Lisp_Object prefix; |
| 449 | int notreal; |
| 450 | int maxdepth; |
| 451 | { |
| 452 | Lisp_Object pending_maps = Qnil; |
| 453 | Lisp_Object tail, item; |
| 454 | struct gcpro gcpro1, gcpro2; |
| 455 | |
| 456 | if (maxdepth <= 0) |
| 457 | return; |
| 458 | |
| 459 | push_menu_pane (pane_name, prefix); |
| 460 | |
| 461 | for (tail = keymap; CONSP (tail); tail = XCDR (tail)) |
| 462 | { |
| 463 | GCPRO2 (keymap, pending_maps); |
| 464 | /* Look at each key binding, and if it is a menu item add it |
| 465 | to this menu. */ |
| 466 | item = XCAR (tail); |
| 467 | if (CONSP (item)) |
| 468 | single_menu_item (XCAR (item), XCDR (item), |
| 469 | &pending_maps, notreal, maxdepth); |
| 470 | else if (VECTORP (item)) |
| 471 | { |
| 472 | /* Loop over the char values represented in the vector. */ |
| 473 | int len = ASIZE (item); |
| 474 | int c; |
| 475 | for (c = 0; c < len; c++) |
| 476 | { |
| 477 | Lisp_Object character; |
| 478 | XSETFASTINT (character, c); |
| 479 | single_menu_item (character, AREF (item, c), |
| 480 | &pending_maps, notreal, maxdepth); |
| 481 | } |
| 482 | } |
| 483 | UNGCPRO; |
| 484 | } |
| 485 | |
| 486 | /* Process now any submenus which want to be panes at this level. */ |
| 487 | while (!NILP (pending_maps)) |
| 488 | { |
| 489 | Lisp_Object elt, eltcdr, string; |
| 490 | elt = Fcar (pending_maps); |
| 491 | eltcdr = XCDR (elt); |
| 492 | string = XCAR (eltcdr); |
| 493 | /* We no longer discard the @ from the beginning of the string here. |
| 494 | Instead, we do this in w32_menu_show. */ |
| 495 | single_keymap_panes (Fcar (elt), string, |
| 496 | XCDR (eltcdr), notreal, maxdepth - 1); |
| 497 | pending_maps = Fcdr (pending_maps); |
| 498 | } |
| 499 | } |
| 500 | \f |
| 501 | /* This is a subroutine of single_keymap_panes that handles one |
| 502 | keymap entry. |
| 503 | KEY is a key in a keymap and ITEM is its binding. |
| 504 | PENDING_MAPS_PTR points to a list of keymaps waiting to be made into |
| 505 | separate panes. |
| 506 | If NOTREAL is nonzero, only check for equivalent key bindings, don't |
| 507 | evaluate expressions in menu items and don't make any menu. |
| 508 | If we encounter submenus deeper than MAXDEPTH levels, ignore them. */ |
| 509 | |
| 510 | static void |
| 511 | single_menu_item (key, item, pending_maps_ptr, notreal, maxdepth) |
| 512 | Lisp_Object key, item; |
| 513 | Lisp_Object *pending_maps_ptr; |
| 514 | int maxdepth, notreal; |
| 515 | { |
| 516 | Lisp_Object map, item_string, enabled; |
| 517 | struct gcpro gcpro1, gcpro2; |
| 518 | int res; |
| 519 | |
| 520 | /* Parse the menu item and leave the result in item_properties. */ |
| 521 | GCPRO2 (key, item); |
| 522 | res = parse_menu_item (item, notreal, 0); |
| 523 | UNGCPRO; |
| 524 | if (!res) |
| 525 | return; /* Not a menu item. */ |
| 526 | |
| 527 | map = AREF (item_properties, ITEM_PROPERTY_MAP); |
| 528 | |
| 529 | if (notreal) |
| 530 | { |
| 531 | /* We don't want to make a menu, just traverse the keymaps to |
| 532 | precompute equivalent key bindings. */ |
| 533 | if (!NILP (map)) |
| 534 | single_keymap_panes (map, Qnil, key, 1, maxdepth - 1); |
| 535 | return; |
| 536 | } |
| 537 | |
| 538 | enabled = AREF (item_properties, ITEM_PROPERTY_ENABLE); |
| 539 | item_string = AREF (item_properties, ITEM_PROPERTY_NAME); |
| 540 | |
| 541 | if (!NILP (map) && SREF (item_string, 0) == '@') |
| 542 | { |
| 543 | if (!NILP (enabled)) |
| 544 | /* An enabled separate pane. Remember this to handle it later. */ |
| 545 | *pending_maps_ptr = Fcons (Fcons (map, Fcons (item_string, key)), |
| 546 | *pending_maps_ptr); |
| 547 | return; |
| 548 | } |
| 549 | |
| 550 | push_menu_item (item_string, enabled, key, |
| 551 | AREF (item_properties, ITEM_PROPERTY_DEF), |
| 552 | AREF (item_properties, ITEM_PROPERTY_KEYEQ), |
| 553 | AREF (item_properties, ITEM_PROPERTY_TYPE), |
| 554 | AREF (item_properties, ITEM_PROPERTY_SELECTED), |
| 555 | AREF (item_properties, ITEM_PROPERTY_HELP)); |
| 556 | |
| 557 | /* Display a submenu using the toolkit. */ |
| 558 | if (! (NILP (map) || NILP (enabled))) |
| 559 | { |
| 560 | push_submenu_start (); |
| 561 | single_keymap_panes (map, Qnil, key, 0, maxdepth - 1); |
| 562 | push_submenu_end (); |
| 563 | } |
| 564 | } |
| 565 | \f |
| 566 | /* Push all the panes and items of a menu described by the |
| 567 | alist-of-alists MENU. |
| 568 | This handles old-fashioned calls to x-popup-menu. */ |
| 569 | |
| 570 | static void |
| 571 | list_of_panes (menu) |
| 572 | Lisp_Object menu; |
| 573 | { |
| 574 | Lisp_Object tail; |
| 575 | |
| 576 | init_menu_items (); |
| 577 | |
| 578 | for (tail = menu; !NILP (tail); tail = Fcdr (tail)) |
| 579 | { |
| 580 | Lisp_Object elt, pane_name, pane_data; |
| 581 | elt = Fcar (tail); |
| 582 | pane_name = Fcar (elt); |
| 583 | CHECK_STRING (pane_name); |
| 584 | push_menu_pane (pane_name, Qnil); |
| 585 | pane_data = Fcdr (elt); |
| 586 | CHECK_CONS (pane_data); |
| 587 | list_of_items (pane_data); |
| 588 | } |
| 589 | |
| 590 | finish_menu_items (); |
| 591 | } |
| 592 | |
| 593 | /* Push the items in a single pane defined by the alist PANE. */ |
| 594 | |
| 595 | static void |
| 596 | list_of_items (pane) |
| 597 | Lisp_Object pane; |
| 598 | { |
| 599 | Lisp_Object tail, item, item1; |
| 600 | |
| 601 | for (tail = pane; !NILP (tail); tail = Fcdr (tail)) |
| 602 | { |
| 603 | item = Fcar (tail); |
| 604 | if (STRINGP (item)) |
| 605 | push_menu_item (item, Qnil, Qnil, Qt, Qnil, Qnil, Qnil, Qnil); |
| 606 | else if (NILP (item)) |
| 607 | push_left_right_boundary (); |
| 608 | else |
| 609 | { |
| 610 | CHECK_CONS (item); |
| 611 | item1 = Fcar (item); |
| 612 | CHECK_STRING (item1); |
| 613 | push_menu_item (item1, Qt, Fcdr (item), Qt, Qnil, Qnil, Qnil, Qnil); |
| 614 | } |
| 615 | } |
| 616 | } |
| 617 | \f |
| 618 | DEFUN ("x-popup-menu", Fx_popup_menu, Sx_popup_menu, 2, 2, 0, |
| 619 | doc: /* Pop up a deck-of-cards menu and return user's selection. |
| 620 | POSITION is a position specification. This is either a mouse button |
| 621 | event or a list ((XOFFSET YOFFSET) WINDOW) where XOFFSET and YOFFSET |
| 622 | are positions in pixels from the top left corner of WINDOW's frame |
| 623 | \(WINDOW may be a frame object instead of a window). This controls the |
| 624 | position of the center of the first line in the first pane of the |
| 625 | menu, not the top left of the menu as a whole. If POSITION is t, it |
| 626 | means to use the current mouse position. |
| 627 | |
| 628 | MENU is a specifier for a menu. For the simplest case, MENU is a keymap. |
| 629 | The menu items come from key bindings that have a menu string as well as |
| 630 | a definition; actually, the \"definition\" in such a key binding looks like |
| 631 | \(STRING . REAL-DEFINITION). To give the menu a title, put a string into |
| 632 | the keymap as a top-level element. |
| 633 | |
| 634 | If REAL-DEFINITION is nil, that puts a nonselectable string in the menu. |
| 635 | Otherwise, REAL-DEFINITION should be a valid key binding definition. |
| 636 | |
| 637 | You can also use a list of keymaps as MENU. Then each keymap makes a |
| 638 | separate pane. When MENU is a keymap or a list of keymaps, the return |
| 639 | value is a list of events. |
| 640 | |
| 641 | Alternatively, you can specify a menu of multiple panes with a list of |
| 642 | the form (TITLE PANE1 PANE2...), where each pane is a list of |
| 643 | form (TITLE ITEM1 ITEM2...). |
| 644 | Each ITEM is normally a cons cell (STRING . VALUE); but a string can |
| 645 | appear as an item--that makes a nonselectable line in the menu. |
| 646 | With this form of menu, the return value is VALUE from the chosen item. |
| 647 | |
| 648 | If POSITION is nil, don't display the menu at all, just precalculate the |
| 649 | cached information about equivalent key sequences. */) |
| 650 | (position, menu) |
| 651 | Lisp_Object position, menu; |
| 652 | { |
| 653 | Lisp_Object keymap, tem; |
| 654 | int xpos = 0, ypos = 0; |
| 655 | Lisp_Object title; |
| 656 | char *error_name; |
| 657 | Lisp_Object selection; |
| 658 | FRAME_PTR f = NULL; |
| 659 | Lisp_Object x, y, window; |
| 660 | int keymaps = 0; |
| 661 | int for_click = 0; |
| 662 | struct gcpro gcpro1; |
| 663 | |
| 664 | #ifdef HAVE_MENUS |
| 665 | if (! NILP (position)) |
| 666 | { |
| 667 | check_w32 (); |
| 668 | |
| 669 | /* Decode the first argument: find the window and the coordinates. */ |
| 670 | if (EQ (position, Qt) |
| 671 | || (CONSP (position) && (EQ (XCAR (position), Qmenu_bar) |
| 672 | || EQ (XCAR (position), Qtool_bar)))) |
| 673 | { |
| 674 | /* Use the mouse's current position. */ |
| 675 | FRAME_PTR new_f = SELECTED_FRAME (); |
| 676 | Lisp_Object bar_window; |
| 677 | enum scroll_bar_part part; |
| 678 | unsigned long time; |
| 679 | |
| 680 | if (mouse_position_hook) |
| 681 | (*mouse_position_hook) (&new_f, 1, &bar_window, |
| 682 | &part, &x, &y, &time); |
| 683 | if (new_f != 0) |
| 684 | XSETFRAME (window, new_f); |
| 685 | else |
| 686 | { |
| 687 | window = selected_window; |
| 688 | XSETFASTINT (x, 0); |
| 689 | XSETFASTINT (y, 0); |
| 690 | } |
| 691 | } |
| 692 | else |
| 693 | { |
| 694 | tem = Fcar (position); |
| 695 | if (CONSP (tem)) |
| 696 | { |
| 697 | window = Fcar (Fcdr (position)); |
| 698 | x = Fcar (tem); |
| 699 | y = Fcar (Fcdr (tem)); |
| 700 | } |
| 701 | else |
| 702 | { |
| 703 | for_click = 1; |
| 704 | tem = Fcar (Fcdr (position)); /* EVENT_START (position) */ |
| 705 | window = Fcar (tem); /* POSN_WINDOW (tem) */ |
| 706 | tem = Fcar (Fcdr (Fcdr (tem))); /* POSN_WINDOW_POSN (tem) */ |
| 707 | x = Fcar (tem); |
| 708 | y = Fcdr (tem); |
| 709 | } |
| 710 | } |
| 711 | |
| 712 | CHECK_NUMBER (x); |
| 713 | CHECK_NUMBER (y); |
| 714 | |
| 715 | /* Decode where to put the menu. */ |
| 716 | |
| 717 | if (FRAMEP (window)) |
| 718 | { |
| 719 | f = XFRAME (window); |
| 720 | xpos = 0; |
| 721 | ypos = 0; |
| 722 | } |
| 723 | else if (WINDOWP (window)) |
| 724 | { |
| 725 | CHECK_LIVE_WINDOW (window); |
| 726 | f = XFRAME (WINDOW_FRAME (XWINDOW (window))); |
| 727 | |
| 728 | xpos = WINDOW_LEFT_EDGE_X (XWINDOW (window)); |
| 729 | ypos = WINDOW_TOP_EDGE_Y (XWINDOW (window)); |
| 730 | } |
| 731 | else |
| 732 | /* ??? Not really clean; should be CHECK_WINDOW_OR_FRAME, |
| 733 | but I don't want to make one now. */ |
| 734 | CHECK_WINDOW (window); |
| 735 | |
| 736 | xpos += XINT (x); |
| 737 | ypos += XINT (y); |
| 738 | |
| 739 | XSETFRAME (Vmenu_updating_frame, f); |
| 740 | } |
| 741 | else |
| 742 | Vmenu_updating_frame = Qnil; |
| 743 | #endif /* HAVE_MENUS */ |
| 744 | |
| 745 | title = Qnil; |
| 746 | GCPRO1 (title); |
| 747 | |
| 748 | /* Decode the menu items from what was specified. */ |
| 749 | |
| 750 | keymap = get_keymap (menu, 0, 0); |
| 751 | if (CONSP (keymap)) |
| 752 | { |
| 753 | /* We were given a keymap. Extract menu info from the keymap. */ |
| 754 | Lisp_Object prompt; |
| 755 | |
| 756 | /* Extract the detailed info to make one pane. */ |
| 757 | keymap_panes (&menu, 1, NILP (position)); |
| 758 | |
| 759 | /* Search for a string appearing directly as an element of the keymap. |
| 760 | That string is the title of the menu. */ |
| 761 | prompt = Fkeymap_prompt (keymap); |
| 762 | if (NILP (title) && !NILP (prompt)) |
| 763 | title = prompt; |
| 764 | |
| 765 | /* Make that be the pane title of the first pane. */ |
| 766 | if (!NILP (prompt) && menu_items_n_panes >= 0) |
| 767 | ASET (menu_items, MENU_ITEMS_PANE_NAME, prompt); |
| 768 | |
| 769 | keymaps = 1; |
| 770 | } |
| 771 | else if (CONSP (menu) && KEYMAPP (XCAR (menu))) |
| 772 | { |
| 773 | /* We were given a list of keymaps. */ |
| 774 | int nmaps = XFASTINT (Flength (menu)); |
| 775 | Lisp_Object *maps |
| 776 | = (Lisp_Object *) alloca (nmaps * sizeof (Lisp_Object)); |
| 777 | int i; |
| 778 | |
| 779 | title = Qnil; |
| 780 | |
| 781 | /* The first keymap that has a prompt string |
| 782 | supplies the menu title. */ |
| 783 | for (tem = menu, i = 0; CONSP (tem); tem = Fcdr (tem)) |
| 784 | { |
| 785 | Lisp_Object prompt; |
| 786 | |
| 787 | maps[i++] = keymap = get_keymap (Fcar (tem), 1, 0); |
| 788 | |
| 789 | prompt = Fkeymap_prompt (keymap); |
| 790 | if (NILP (title) && !NILP (prompt)) |
| 791 | title = prompt; |
| 792 | } |
| 793 | |
| 794 | /* Extract the detailed info to make one pane. */ |
| 795 | keymap_panes (maps, nmaps, NILP (position)); |
| 796 | |
| 797 | /* Make the title be the pane title of the first pane. */ |
| 798 | if (!NILP (title) && menu_items_n_panes >= 0) |
| 799 | ASET (menu_items, MENU_ITEMS_PANE_NAME, title); |
| 800 | |
| 801 | keymaps = 1; |
| 802 | } |
| 803 | else |
| 804 | { |
| 805 | /* We were given an old-fashioned menu. */ |
| 806 | title = Fcar (menu); |
| 807 | CHECK_STRING (title); |
| 808 | |
| 809 | list_of_panes (Fcdr (menu)); |
| 810 | |
| 811 | keymaps = 0; |
| 812 | } |
| 813 | |
| 814 | if (NILP (position)) |
| 815 | { |
| 816 | discard_menu_items (); |
| 817 | UNGCPRO; |
| 818 | return Qnil; |
| 819 | } |
| 820 | |
| 821 | #ifdef HAVE_MENUS |
| 822 | /* If resources from a previous popup menu still exist, does nothing |
| 823 | until the `menu_free_timer' has freed them (see w32fns.c). This |
| 824 | can occur if you press ESC or click outside a menu without selecting |
| 825 | a menu item. |
| 826 | */ |
| 827 | if (current_popup_menu) |
| 828 | { |
| 829 | discard_menu_items (); |
| 830 | UNGCPRO; |
| 831 | return Qnil; |
| 832 | } |
| 833 | |
| 834 | /* Display them in a menu. */ |
| 835 | BLOCK_INPUT; |
| 836 | |
| 837 | selection = w32_menu_show (f, xpos, ypos, for_click, |
| 838 | keymaps, title, &error_name); |
| 839 | UNBLOCK_INPUT; |
| 840 | |
| 841 | discard_menu_items (); |
| 842 | w32_free_menu_strings (FRAME_W32_WINDOW (f)); |
| 843 | |
| 844 | #endif /* HAVE_MENUS */ |
| 845 | |
| 846 | UNGCPRO; |
| 847 | |
| 848 | if (error_name) error (error_name); |
| 849 | return selection; |
| 850 | } |
| 851 | |
| 852 | #ifdef HAVE_MENUS |
| 853 | |
| 854 | DEFUN ("x-popup-dialog", Fx_popup_dialog, Sx_popup_dialog, 2, 3, 0, |
| 855 | doc: /* Pop up a dialog box and return user's selection. |
| 856 | POSITION specifies which frame to use. |
| 857 | This is normally a mouse button event or a window or frame. |
| 858 | If POSITION is t, it means to use the frame the mouse is on. |
| 859 | The dialog box appears in the middle of the specified frame. |
| 860 | |
| 861 | CONTENTS specifies the alternatives to display in the dialog box. |
| 862 | It is a list of the form (TITLE ITEM1 ITEM2...). |
| 863 | Each ITEM is a cons cell (STRING . VALUE). |
| 864 | The return value is VALUE from the chosen item. |
| 865 | |
| 866 | An ITEM may also be just a string--that makes a nonselectable item. |
| 867 | An ITEM may also be nil--that means to put all preceding items |
| 868 | on the left of the dialog box and all following items on the right. |
| 869 | \(By default, approximately half appear on each side.) |
| 870 | |
| 871 | If HEADER is non-nil, the frame title for the box is "Information", |
| 872 | otherwise it is "Question". */) |
| 873 | (position, contents, header) |
| 874 | Lisp_Object position, contents, header; |
| 875 | { |
| 876 | FRAME_PTR f = NULL; |
| 877 | Lisp_Object window; |
| 878 | |
| 879 | check_w32 (); |
| 880 | |
| 881 | /* Decode the first argument: find the window or frame to use. */ |
| 882 | if (EQ (position, Qt) |
| 883 | || (CONSP (position) && (EQ (XCAR (position), Qmenu_bar) |
| 884 | || EQ (XCAR (position), Qtool_bar)))) |
| 885 | { |
| 886 | #if 0 /* Using the frame the mouse is on may not be right. */ |
| 887 | /* Use the mouse's current position. */ |
| 888 | FRAME_PTR new_f = SELECTED_FRAME (); |
| 889 | Lisp_Object bar_window; |
| 890 | enum scroll_bar_part part; |
| 891 | unsigned long time; |
| 892 | Lisp_Object x, y; |
| 893 | |
| 894 | (*mouse_position_hook) (&new_f, 1, &bar_window, &part, &x, &y, &time); |
| 895 | |
| 896 | if (new_f != 0) |
| 897 | XSETFRAME (window, new_f); |
| 898 | else |
| 899 | window = selected_window; |
| 900 | #endif |
| 901 | window = selected_window; |
| 902 | } |
| 903 | else if (CONSP (position)) |
| 904 | { |
| 905 | Lisp_Object tem; |
| 906 | tem = Fcar (position); |
| 907 | if (CONSP (tem)) |
| 908 | window = Fcar (Fcdr (position)); |
| 909 | else |
| 910 | { |
| 911 | tem = Fcar (Fcdr (position)); /* EVENT_START (position) */ |
| 912 | window = Fcar (tem); /* POSN_WINDOW (tem) */ |
| 913 | } |
| 914 | } |
| 915 | else if (WINDOWP (position) || FRAMEP (position)) |
| 916 | window = position; |
| 917 | else |
| 918 | window = Qnil; |
| 919 | |
| 920 | /* Decode where to put the menu. */ |
| 921 | |
| 922 | if (FRAMEP (window)) |
| 923 | f = XFRAME (window); |
| 924 | else if (WINDOWP (window)) |
| 925 | { |
| 926 | CHECK_LIVE_WINDOW (window); |
| 927 | f = XFRAME (WINDOW_FRAME (XWINDOW (window))); |
| 928 | } |
| 929 | else |
| 930 | /* ??? Not really clean; should be CHECK_WINDOW_OR_FRAME, |
| 931 | but I don't want to make one now. */ |
| 932 | CHECK_WINDOW (window); |
| 933 | |
| 934 | #ifndef HAVE_DIALOGS |
| 935 | /* Display a menu with these alternatives |
| 936 | in the middle of frame F. */ |
| 937 | { |
| 938 | Lisp_Object x, y, frame, newpos; |
| 939 | XSETFRAME (frame, f); |
| 940 | XSETINT (x, x_pixel_width (f) / 2); |
| 941 | XSETINT (y, x_pixel_height (f) / 2); |
| 942 | newpos = Fcons (Fcons (x, Fcons (y, Qnil)), Fcons (frame, Qnil)); |
| 943 | |
| 944 | return Fx_popup_menu (newpos, |
| 945 | Fcons (Fcar (contents), Fcons (contents, Qnil))); |
| 946 | } |
| 947 | #else /* HAVE_DIALOGS */ |
| 948 | { |
| 949 | Lisp_Object title; |
| 950 | char *error_name; |
| 951 | Lisp_Object selection; |
| 952 | |
| 953 | /* Decode the dialog items from what was specified. */ |
| 954 | title = Fcar (contents); |
| 955 | CHECK_STRING (title); |
| 956 | |
| 957 | list_of_panes (Fcons (contents, Qnil)); |
| 958 | |
| 959 | /* Display them in a dialog box. */ |
| 960 | BLOCK_INPUT; |
| 961 | selection = w32_dialog_show (f, 0, title, header, &error_name); |
| 962 | UNBLOCK_INPUT; |
| 963 | |
| 964 | discard_menu_items (); |
| 965 | |
| 966 | if (error_name) error (error_name); |
| 967 | return selection; |
| 968 | } |
| 969 | #endif /* HAVE_DIALOGS */ |
| 970 | } |
| 971 | |
| 972 | /* Activate the menu bar of frame F. |
| 973 | This is called from keyboard.c when it gets the |
| 974 | MENU_BAR_ACTIVATE_EVENT out of the Emacs event queue. |
| 975 | |
| 976 | To activate the menu bar, we signal to the input thread that it can |
| 977 | return from the WM_INITMENU message, allowing the normal Windows |
| 978 | processing of the menus. |
| 979 | |
| 980 | But first we recompute the menu bar contents (the whole tree). |
| 981 | |
| 982 | This way we can safely execute Lisp code. */ |
| 983 | |
| 984 | void |
| 985 | x_activate_menubar (f) |
| 986 | FRAME_PTR f; |
| 987 | { |
| 988 | set_frame_menubar (f, 0, 1); |
| 989 | |
| 990 | /* Lock out further menubar changes while active. */ |
| 991 | f->output_data.w32->menubar_active = 1; |
| 992 | |
| 993 | /* Signal input thread to return from WM_INITMENU. */ |
| 994 | complete_deferred_msg (FRAME_W32_WINDOW (f), WM_INITMENU, 0); |
| 995 | } |
| 996 | |
| 997 | /* This callback is called from the menu bar pulldown menu |
| 998 | when the user makes a selection. |
| 999 | Figure out what the user chose |
| 1000 | and put the appropriate events into the keyboard buffer. */ |
| 1001 | |
| 1002 | void |
| 1003 | menubar_selection_callback (FRAME_PTR f, void * client_data) |
| 1004 | { |
| 1005 | Lisp_Object prefix, entry; |
| 1006 | Lisp_Object vector; |
| 1007 | Lisp_Object *subprefix_stack; |
| 1008 | int submenu_depth = 0; |
| 1009 | int i; |
| 1010 | |
| 1011 | if (!f) |
| 1012 | return; |
| 1013 | entry = Qnil; |
| 1014 | subprefix_stack = (Lisp_Object *) alloca (f->menu_bar_items_used * sizeof (Lisp_Object)); |
| 1015 | vector = f->menu_bar_vector; |
| 1016 | prefix = Qnil; |
| 1017 | i = 0; |
| 1018 | while (i < f->menu_bar_items_used) |
| 1019 | { |
| 1020 | if (EQ (AREF (vector, i), Qnil)) |
| 1021 | { |
| 1022 | subprefix_stack[submenu_depth++] = prefix; |
| 1023 | prefix = entry; |
| 1024 | i++; |
| 1025 | } |
| 1026 | else if (EQ (AREF (vector, i), Qlambda)) |
| 1027 | { |
| 1028 | prefix = subprefix_stack[--submenu_depth]; |
| 1029 | i++; |
| 1030 | } |
| 1031 | else if (EQ (AREF (vector, i), Qt)) |
| 1032 | { |
| 1033 | prefix = AREF (vector, i + MENU_ITEMS_PANE_PREFIX); |
| 1034 | i += MENU_ITEMS_PANE_LENGTH; |
| 1035 | } |
| 1036 | else |
| 1037 | { |
| 1038 | entry = AREF (vector, i + MENU_ITEMS_ITEM_VALUE); |
| 1039 | /* The EMACS_INT cast avoids a warning. There's no problem |
| 1040 | as long as pointers have enough bits to hold small integers. */ |
| 1041 | if ((int) (EMACS_INT) client_data == i) |
| 1042 | { |
| 1043 | int j; |
| 1044 | struct input_event buf; |
| 1045 | Lisp_Object frame; |
| 1046 | EVENT_INIT (buf); |
| 1047 | |
| 1048 | XSETFRAME (frame, f); |
| 1049 | buf.kind = MENU_BAR_EVENT; |
| 1050 | buf.frame_or_window = frame; |
| 1051 | buf.arg = frame; |
| 1052 | kbd_buffer_store_event (&buf); |
| 1053 | |
| 1054 | for (j = 0; j < submenu_depth; j++) |
| 1055 | if (!NILP (subprefix_stack[j])) |
| 1056 | { |
| 1057 | buf.kind = MENU_BAR_EVENT; |
| 1058 | buf.frame_or_window = frame; |
| 1059 | buf.arg = subprefix_stack[j]; |
| 1060 | kbd_buffer_store_event (&buf); |
| 1061 | } |
| 1062 | |
| 1063 | if (!NILP (prefix)) |
| 1064 | { |
| 1065 | buf.kind = MENU_BAR_EVENT; |
| 1066 | buf.frame_or_window = frame; |
| 1067 | buf.arg = prefix; |
| 1068 | kbd_buffer_store_event (&buf); |
| 1069 | } |
| 1070 | |
| 1071 | buf.kind = MENU_BAR_EVENT; |
| 1072 | buf.frame_or_window = frame; |
| 1073 | buf.arg = entry; |
| 1074 | kbd_buffer_store_event (&buf); |
| 1075 | |
| 1076 | /* Free memory used by owner-drawn and help-echo strings. */ |
| 1077 | w32_free_menu_strings (FRAME_W32_WINDOW (f)); |
| 1078 | f->output_data.w32->menu_command_in_progress = 0; |
| 1079 | f->output_data.w32->menubar_active = 0; |
| 1080 | return; |
| 1081 | } |
| 1082 | i += MENU_ITEMS_ITEM_LENGTH; |
| 1083 | } |
| 1084 | } |
| 1085 | /* Free memory used by owner-drawn and help-echo strings. */ |
| 1086 | w32_free_menu_strings (FRAME_W32_WINDOW (f)); |
| 1087 | f->output_data.w32->menu_command_in_progress = 0; |
| 1088 | f->output_data.w32->menubar_active = 0; |
| 1089 | } |
| 1090 | |
| 1091 | /* Allocate a widget_value, blocking input. */ |
| 1092 | |
| 1093 | widget_value * |
| 1094 | xmalloc_widget_value () |
| 1095 | { |
| 1096 | widget_value *value; |
| 1097 | |
| 1098 | BLOCK_INPUT; |
| 1099 | value = malloc_widget_value (); |
| 1100 | UNBLOCK_INPUT; |
| 1101 | |
| 1102 | return value; |
| 1103 | } |
| 1104 | |
| 1105 | /* This recursively calls free_widget_value on the tree of widgets. |
| 1106 | It must free all data that was malloc'ed for these widget_values. |
| 1107 | In Emacs, many slots are pointers into the data of Lisp_Strings, and |
| 1108 | must be left alone. */ |
| 1109 | |
| 1110 | void |
| 1111 | free_menubar_widget_value_tree (wv) |
| 1112 | widget_value *wv; |
| 1113 | { |
| 1114 | if (! wv) return; |
| 1115 | |
| 1116 | wv->name = wv->value = wv->key = (char *) 0xDEADBEEF; |
| 1117 | |
| 1118 | if (wv->contents && (wv->contents != (widget_value*)1)) |
| 1119 | { |
| 1120 | free_menubar_widget_value_tree (wv->contents); |
| 1121 | wv->contents = (widget_value *) 0xDEADBEEF; |
| 1122 | } |
| 1123 | if (wv->next) |
| 1124 | { |
| 1125 | free_menubar_widget_value_tree (wv->next); |
| 1126 | wv->next = (widget_value *) 0xDEADBEEF; |
| 1127 | } |
| 1128 | BLOCK_INPUT; |
| 1129 | free_widget_value (wv); |
| 1130 | UNBLOCK_INPUT; |
| 1131 | } |
| 1132 | \f |
| 1133 | /* Set up data i menu_items for a menu bar item |
| 1134 | whose event type is ITEM_KEY (with string ITEM_NAME) |
| 1135 | and whose contents come from the list of keymaps MAPS. */ |
| 1136 | |
| 1137 | static int |
| 1138 | parse_single_submenu (item_key, item_name, maps) |
| 1139 | Lisp_Object item_key, item_name, maps; |
| 1140 | { |
| 1141 | Lisp_Object length; |
| 1142 | int len; |
| 1143 | Lisp_Object *mapvec; |
| 1144 | int i; |
| 1145 | int top_level_items = 0; |
| 1146 | |
| 1147 | length = Flength (maps); |
| 1148 | len = XINT (length); |
| 1149 | |
| 1150 | /* Convert the list MAPS into a vector MAPVEC. */ |
| 1151 | mapvec = (Lisp_Object *) alloca (len * sizeof (Lisp_Object)); |
| 1152 | for (i = 0; i < len; i++) |
| 1153 | { |
| 1154 | mapvec[i] = Fcar (maps); |
| 1155 | maps = Fcdr (maps); |
| 1156 | } |
| 1157 | |
| 1158 | /* Loop over the given keymaps, making a pane for each map. |
| 1159 | But don't make a pane that is empty--ignore that map instead. */ |
| 1160 | for (i = 0; i < len; i++) |
| 1161 | { |
| 1162 | if (SYMBOLP (mapvec[i]) |
| 1163 | || (CONSP (mapvec[i]) && !KEYMAPP (mapvec[i]))) |
| 1164 | { |
| 1165 | /* Here we have a command at top level in the menu bar |
| 1166 | as opposed to a submenu. */ |
| 1167 | top_level_items = 1; |
| 1168 | push_menu_pane (Qnil, Qnil); |
| 1169 | push_menu_item (item_name, Qt, item_key, mapvec[i], |
| 1170 | Qnil, Qnil, Qnil, Qnil); |
| 1171 | } |
| 1172 | else |
| 1173 | { |
| 1174 | Lisp_Object prompt; |
| 1175 | prompt = Fkeymap_prompt (mapvec[i]); |
| 1176 | single_keymap_panes (mapvec[i], |
| 1177 | !NILP (prompt) ? prompt : item_name, |
| 1178 | item_key, 0, 10); |
| 1179 | } |
| 1180 | } |
| 1181 | |
| 1182 | return top_level_items; |
| 1183 | } |
| 1184 | |
| 1185 | |
| 1186 | /* Create a tree of widget_value objects |
| 1187 | representing the panes and items |
| 1188 | in menu_items starting at index START, up to index END. */ |
| 1189 | |
| 1190 | static widget_value * |
| 1191 | digest_single_submenu (start, end, top_level_items) |
| 1192 | int start, end, top_level_items; |
| 1193 | { |
| 1194 | widget_value *wv, *prev_wv, *save_wv, *first_wv; |
| 1195 | int i; |
| 1196 | int submenu_depth = 0; |
| 1197 | widget_value **submenu_stack; |
| 1198 | |
| 1199 | submenu_stack |
| 1200 | = (widget_value **) alloca (menu_items_used * sizeof (widget_value *)); |
| 1201 | wv = xmalloc_widget_value (); |
| 1202 | wv->name = "menu"; |
| 1203 | wv->value = 0; |
| 1204 | wv->enabled = 1; |
| 1205 | wv->button_type = BUTTON_TYPE_NONE; |
| 1206 | wv->help = Qnil; |
| 1207 | first_wv = wv; |
| 1208 | save_wv = 0; |
| 1209 | prev_wv = 0; |
| 1210 | |
| 1211 | /* Loop over all panes and items made by the preceding call |
| 1212 | to parse_single_submenu and construct a tree of widget_value objects. |
| 1213 | Ignore the panes and items used by previous calls to |
| 1214 | digest_single_submenu, even though those are also in menu_items. */ |
| 1215 | i = start; |
| 1216 | while (i < end) |
| 1217 | { |
| 1218 | if (EQ (AREF (menu_items, i), Qnil)) |
| 1219 | { |
| 1220 | submenu_stack[submenu_depth++] = save_wv; |
| 1221 | save_wv = prev_wv; |
| 1222 | prev_wv = 0; |
| 1223 | i++; |
| 1224 | } |
| 1225 | else if (EQ (AREF (menu_items, i), Qlambda)) |
| 1226 | { |
| 1227 | prev_wv = save_wv; |
| 1228 | save_wv = submenu_stack[--submenu_depth]; |
| 1229 | i++; |
| 1230 | } |
| 1231 | else if (EQ (AREF (menu_items, i), Qt) |
| 1232 | && submenu_depth != 0) |
| 1233 | i += MENU_ITEMS_PANE_LENGTH; |
| 1234 | /* Ignore a nil in the item list. |
| 1235 | It's meaningful only for dialog boxes. */ |
| 1236 | else if (EQ (AREF (menu_items, i), Qquote)) |
| 1237 | i += 1; |
| 1238 | else if (EQ (AREF (menu_items, i), Qt)) |
| 1239 | { |
| 1240 | /* Create a new pane. */ |
| 1241 | Lisp_Object pane_name, prefix; |
| 1242 | char *pane_string; |
| 1243 | |
| 1244 | pane_name = AREF (menu_items, i + MENU_ITEMS_PANE_NAME); |
| 1245 | prefix = AREF (menu_items, i + MENU_ITEMS_PANE_PREFIX); |
| 1246 | |
| 1247 | if (STRINGP (pane_name)) |
| 1248 | { |
| 1249 | if (unicode_append_menu) |
| 1250 | /* Encode as UTF-8 for now. */ |
| 1251 | pane_name = ENCODE_UTF_8 (pane_name); |
| 1252 | else if (STRING_MULTIBYTE (pane_name)) |
| 1253 | pane_name = ENCODE_SYSTEM (pane_name); |
| 1254 | |
| 1255 | ASET (menu_items, i + MENU_ITEMS_PANE_NAME, pane_name); |
| 1256 | } |
| 1257 | |
| 1258 | pane_string = (NILP (pane_name) |
| 1259 | ? "" : (char *) SDATA (pane_name)); |
| 1260 | /* If there is just one top-level pane, put all its items directly |
| 1261 | under the top-level menu. */ |
| 1262 | if (menu_items_n_panes == 1) |
| 1263 | pane_string = ""; |
| 1264 | |
| 1265 | /* If the pane has a meaningful name, |
| 1266 | make the pane a top-level menu item |
| 1267 | with its items as a submenu beneath it. */ |
| 1268 | if (strcmp (pane_string, "")) |
| 1269 | { |
| 1270 | wv = xmalloc_widget_value (); |
| 1271 | if (save_wv) |
| 1272 | save_wv->next = wv; |
| 1273 | else |
| 1274 | first_wv->contents = wv; |
| 1275 | wv->lname = pane_name; |
| 1276 | /* Set value to 1 so update_submenu_strings can handle '@' */ |
| 1277 | wv->value = (char *) 1; |
| 1278 | wv->enabled = 1; |
| 1279 | wv->button_type = BUTTON_TYPE_NONE; |
| 1280 | wv->help = Qnil; |
| 1281 | } |
| 1282 | save_wv = wv; |
| 1283 | prev_wv = 0; |
| 1284 | i += MENU_ITEMS_PANE_LENGTH; |
| 1285 | } |
| 1286 | else |
| 1287 | { |
| 1288 | /* Create a new item within current pane. */ |
| 1289 | Lisp_Object item_name, enable, descrip, def, type, selected; |
| 1290 | Lisp_Object help; |
| 1291 | |
| 1292 | item_name = AREF (menu_items, i + MENU_ITEMS_ITEM_NAME); |
| 1293 | enable = AREF (menu_items, i + MENU_ITEMS_ITEM_ENABLE); |
| 1294 | descrip = AREF (menu_items, i + MENU_ITEMS_ITEM_EQUIV_KEY); |
| 1295 | def = AREF (menu_items, i + MENU_ITEMS_ITEM_DEFINITION); |
| 1296 | type = AREF (menu_items, i + MENU_ITEMS_ITEM_TYPE); |
| 1297 | selected = AREF (menu_items, i + MENU_ITEMS_ITEM_SELECTED); |
| 1298 | help = AREF (menu_items, i + MENU_ITEMS_ITEM_HELP); |
| 1299 | |
| 1300 | if (STRINGP (item_name)) |
| 1301 | { |
| 1302 | if (unicode_append_menu) |
| 1303 | item_name = ENCODE_UTF_8 (item_name); |
| 1304 | else if (STRING_MULTIBYTE (item_name)) |
| 1305 | item_name = ENCODE_SYSTEM (item_name); |
| 1306 | |
| 1307 | ASET (menu_items, i + MENU_ITEMS_ITEM_NAME, item_name); |
| 1308 | } |
| 1309 | |
| 1310 | if (STRINGP (descrip) && STRING_MULTIBYTE (descrip)) |
| 1311 | { |
| 1312 | descrip = ENCODE_SYSTEM (descrip); |
| 1313 | ASET (menu_items, i + MENU_ITEMS_ITEM_EQUIV_KEY, descrip); |
| 1314 | } |
| 1315 | |
| 1316 | wv = xmalloc_widget_value (); |
| 1317 | if (prev_wv) |
| 1318 | prev_wv->next = wv; |
| 1319 | else |
| 1320 | save_wv->contents = wv; |
| 1321 | |
| 1322 | wv->lname = item_name; |
| 1323 | if (!NILP (descrip)) |
| 1324 | wv->lkey = descrip; |
| 1325 | wv->value = 0; |
| 1326 | /* The EMACS_INT cast avoids a warning. There's no problem |
| 1327 | as long as pointers have enough bits to hold small integers. */ |
| 1328 | wv->call_data = (!NILP (def) ? (void *) (EMACS_INT) i : 0); |
| 1329 | wv->enabled = !NILP (enable); |
| 1330 | |
| 1331 | if (NILP (type)) |
| 1332 | wv->button_type = BUTTON_TYPE_NONE; |
| 1333 | else if (EQ (type, QCradio)) |
| 1334 | wv->button_type = BUTTON_TYPE_RADIO; |
| 1335 | else if (EQ (type, QCtoggle)) |
| 1336 | wv->button_type = BUTTON_TYPE_TOGGLE; |
| 1337 | else |
| 1338 | abort (); |
| 1339 | |
| 1340 | wv->selected = !NILP (selected); |
| 1341 | if (!STRINGP (help)) |
| 1342 | help = Qnil; |
| 1343 | |
| 1344 | wv->help = help; |
| 1345 | |
| 1346 | prev_wv = wv; |
| 1347 | |
| 1348 | i += MENU_ITEMS_ITEM_LENGTH; |
| 1349 | } |
| 1350 | } |
| 1351 | |
| 1352 | /* If we have just one "menu item" |
| 1353 | that was originally a button, return it by itself. */ |
| 1354 | if (top_level_items && first_wv->contents && first_wv->contents->next == 0) |
| 1355 | { |
| 1356 | wv = first_wv->contents; |
| 1357 | free_widget_value (first_wv); |
| 1358 | return wv; |
| 1359 | } |
| 1360 | |
| 1361 | return first_wv; |
| 1362 | } |
| 1363 | |
| 1364 | |
| 1365 | /* Walk through the widget_value tree starting at FIRST_WV and update |
| 1366 | the char * pointers from the corresponding lisp values. |
| 1367 | We do this after building the whole tree, since GC may happen while the |
| 1368 | tree is constructed, and small strings are relocated. So we must wait |
| 1369 | until no GC can happen before storing pointers into lisp values. */ |
| 1370 | static void |
| 1371 | update_submenu_strings (first_wv) |
| 1372 | widget_value *first_wv; |
| 1373 | { |
| 1374 | widget_value *wv; |
| 1375 | |
| 1376 | for (wv = first_wv; wv; wv = wv->next) |
| 1377 | { |
| 1378 | if (wv->lname && ! NILP (wv->lname)) |
| 1379 | { |
| 1380 | wv->name = SDATA (wv->lname); |
| 1381 | |
| 1382 | /* Ignore the @ that means "separate pane". |
| 1383 | This is a kludge, but this isn't worth more time. */ |
| 1384 | if (wv->value == (char *)1) |
| 1385 | { |
| 1386 | if (wv->name[0] == '@') |
| 1387 | wv->name++; |
| 1388 | wv->value = 0; |
| 1389 | } |
| 1390 | } |
| 1391 | |
| 1392 | if (wv->lkey && ! NILP (wv->lkey)) |
| 1393 | wv->key = SDATA (wv->lkey); |
| 1394 | |
| 1395 | if (wv->contents) |
| 1396 | update_submenu_strings (wv->contents); |
| 1397 | } |
| 1398 | } |
| 1399 | |
| 1400 | \f |
| 1401 | /* Set the contents of the menubar widgets of frame F. |
| 1402 | The argument FIRST_TIME is currently ignored; |
| 1403 | it is set the first time this is called, from initialize_frame_menubar. */ |
| 1404 | |
| 1405 | void |
| 1406 | set_frame_menubar (f, first_time, deep_p) |
| 1407 | FRAME_PTR f; |
| 1408 | int first_time; |
| 1409 | int deep_p; |
| 1410 | { |
| 1411 | HMENU menubar_widget = f->output_data.w32->menubar_widget; |
| 1412 | Lisp_Object items; |
| 1413 | widget_value *wv, *first_wv, *prev_wv = 0; |
| 1414 | int i, last_i; |
| 1415 | int *submenu_start, *submenu_end; |
| 1416 | int *submenu_top_level_items, *submenu_n_panes; |
| 1417 | |
| 1418 | /* We must not change the menubar when actually in use. */ |
| 1419 | if (f->output_data.w32->menubar_active) |
| 1420 | return; |
| 1421 | |
| 1422 | XSETFRAME (Vmenu_updating_frame, f); |
| 1423 | |
| 1424 | if (! menubar_widget) |
| 1425 | deep_p = 1; |
| 1426 | else if (pending_menu_activation && !deep_p) |
| 1427 | deep_p = 1; |
| 1428 | |
| 1429 | if (deep_p) |
| 1430 | { |
| 1431 | /* Make a widget-value tree representing the entire menu trees. */ |
| 1432 | |
| 1433 | struct buffer *prev = current_buffer; |
| 1434 | Lisp_Object buffer; |
| 1435 | int specpdl_count = SPECPDL_INDEX (); |
| 1436 | int previous_menu_items_used = f->menu_bar_items_used; |
| 1437 | Lisp_Object *previous_items |
| 1438 | = (Lisp_Object *) alloca (previous_menu_items_used |
| 1439 | * sizeof (Lisp_Object)); |
| 1440 | |
| 1441 | /* If we are making a new widget, its contents are empty, |
| 1442 | do always reinitialize them. */ |
| 1443 | if (! menubar_widget) |
| 1444 | previous_menu_items_used = 0; |
| 1445 | |
| 1446 | buffer = XWINDOW (FRAME_SELECTED_WINDOW (f))->buffer; |
| 1447 | specbind (Qinhibit_quit, Qt); |
| 1448 | /* Don't let the debugger step into this code |
| 1449 | because it is not reentrant. */ |
| 1450 | specbind (Qdebug_on_next_call, Qnil); |
| 1451 | |
| 1452 | record_unwind_save_match_data (); |
| 1453 | |
| 1454 | if (NILP (Voverriding_local_map_menu_flag)) |
| 1455 | { |
| 1456 | specbind (Qoverriding_terminal_local_map, Qnil); |
| 1457 | specbind (Qoverriding_local_map, Qnil); |
| 1458 | } |
| 1459 | |
| 1460 | set_buffer_internal_1 (XBUFFER (buffer)); |
| 1461 | |
| 1462 | /* Run the Lucid hook. */ |
| 1463 | safe_run_hooks (Qactivate_menubar_hook); |
| 1464 | /* If it has changed current-menubar from previous value, |
| 1465 | really recompute the menubar from the value. */ |
| 1466 | if (! NILP (Vlucid_menu_bar_dirty_flag)) |
| 1467 | call0 (Qrecompute_lucid_menubar); |
| 1468 | safe_run_hooks (Qmenu_bar_update_hook); |
| 1469 | FRAME_MENU_BAR_ITEMS (f) = menu_bar_items (FRAME_MENU_BAR_ITEMS (f)); |
| 1470 | |
| 1471 | items = FRAME_MENU_BAR_ITEMS (f); |
| 1472 | |
| 1473 | /* Save the frame's previous menu bar contents data. */ |
| 1474 | if (previous_menu_items_used) |
| 1475 | bcopy (XVECTOR (f->menu_bar_vector)->contents, previous_items, |
| 1476 | previous_menu_items_used * sizeof (Lisp_Object)); |
| 1477 | |
| 1478 | /* Fill in menu_items with the current menu bar contents. |
| 1479 | This can evaluate Lisp code. */ |
| 1480 | menu_items = f->menu_bar_vector; |
| 1481 | menu_items_allocated = VECTORP (menu_items) ? ASIZE (menu_items) : 0; |
| 1482 | submenu_start = (int *) alloca (XVECTOR (items)->size * sizeof (int *)); |
| 1483 | submenu_end = (int *) alloca (XVECTOR (items)->size * sizeof (int *)); |
| 1484 | submenu_n_panes = (int *) alloca (XVECTOR (items)->size * sizeof (int)); |
| 1485 | submenu_top_level_items |
| 1486 | = (int *) alloca (XVECTOR (items)->size * sizeof (int *)); |
| 1487 | init_menu_items (); |
| 1488 | for (i = 0; i < ASIZE (items); i += 4) |
| 1489 | { |
| 1490 | Lisp_Object key, string, maps; |
| 1491 | |
| 1492 | last_i = i; |
| 1493 | |
| 1494 | key = AREF (items, i); |
| 1495 | string = AREF (items, i + 1); |
| 1496 | maps = AREF (items, i + 2); |
| 1497 | if (NILP (string)) |
| 1498 | break; |
| 1499 | |
| 1500 | submenu_start[i] = menu_items_used; |
| 1501 | |
| 1502 | menu_items_n_panes = 0; |
| 1503 | submenu_top_level_items[i] |
| 1504 | = parse_single_submenu (key, string, maps); |
| 1505 | submenu_n_panes[i] = menu_items_n_panes; |
| 1506 | |
| 1507 | submenu_end[i] = menu_items_used; |
| 1508 | } |
| 1509 | |
| 1510 | finish_menu_items (); |
| 1511 | |
| 1512 | /* Convert menu_items into widget_value trees |
| 1513 | to display the menu. This cannot evaluate Lisp code. */ |
| 1514 | |
| 1515 | wv = xmalloc_widget_value (); |
| 1516 | wv->name = "menubar"; |
| 1517 | wv->value = 0; |
| 1518 | wv->enabled = 1; |
| 1519 | wv->button_type = BUTTON_TYPE_NONE; |
| 1520 | wv->help = Qnil; |
| 1521 | first_wv = wv; |
| 1522 | |
| 1523 | for (i = 0; i < last_i; i += 4) |
| 1524 | { |
| 1525 | menu_items_n_panes = submenu_n_panes[i]; |
| 1526 | wv = digest_single_submenu (submenu_start[i], submenu_end[i], |
| 1527 | submenu_top_level_items[i]); |
| 1528 | if (prev_wv) |
| 1529 | prev_wv->next = wv; |
| 1530 | else |
| 1531 | first_wv->contents = wv; |
| 1532 | /* Don't set wv->name here; GC during the loop might relocate it. */ |
| 1533 | wv->enabled = 1; |
| 1534 | wv->button_type = BUTTON_TYPE_NONE; |
| 1535 | prev_wv = wv; |
| 1536 | } |
| 1537 | |
| 1538 | set_buffer_internal_1 (prev); |
| 1539 | unbind_to (specpdl_count, Qnil); |
| 1540 | |
| 1541 | /* If there has been no change in the Lisp-level contents |
| 1542 | of the menu bar, skip redisplaying it. Just exit. */ |
| 1543 | |
| 1544 | for (i = 0; i < previous_menu_items_used; i++) |
| 1545 | if (menu_items_used == i |
| 1546 | || (!EQ (previous_items[i], AREF (menu_items, i)))) |
| 1547 | break; |
| 1548 | if (i == menu_items_used && i == previous_menu_items_used && i != 0) |
| 1549 | { |
| 1550 | free_menubar_widget_value_tree (first_wv); |
| 1551 | menu_items = Qnil; |
| 1552 | |
| 1553 | return; |
| 1554 | } |
| 1555 | |
| 1556 | /* Now GC cannot happen during the lifetime of the widget_value, |
| 1557 | so it's safe to store data from a Lisp_String, as long as |
| 1558 | local copies are made when the actual menu is created. |
| 1559 | Windows takes care of this for normal string items, but |
| 1560 | not for owner-drawn items or additional item-info. */ |
| 1561 | wv = first_wv->contents; |
| 1562 | for (i = 0; i < ASIZE (items); i += 4) |
| 1563 | { |
| 1564 | Lisp_Object string; |
| 1565 | string = AREF (items, i + 1); |
| 1566 | if (NILP (string)) |
| 1567 | break; |
| 1568 | wv->name = (char *) SDATA (string); |
| 1569 | update_submenu_strings (wv->contents); |
| 1570 | wv = wv->next; |
| 1571 | } |
| 1572 | |
| 1573 | f->menu_bar_vector = menu_items; |
| 1574 | f->menu_bar_items_used = menu_items_used; |
| 1575 | menu_items = Qnil; |
| 1576 | } |
| 1577 | else |
| 1578 | { |
| 1579 | /* Make a widget-value tree containing |
| 1580 | just the top level menu bar strings. */ |
| 1581 | |
| 1582 | wv = xmalloc_widget_value (); |
| 1583 | wv->name = "menubar"; |
| 1584 | wv->value = 0; |
| 1585 | wv->enabled = 1; |
| 1586 | wv->button_type = BUTTON_TYPE_NONE; |
| 1587 | wv->help = Qnil; |
| 1588 | first_wv = wv; |
| 1589 | |
| 1590 | items = FRAME_MENU_BAR_ITEMS (f); |
| 1591 | for (i = 0; i < ASIZE (items); i += 4) |
| 1592 | { |
| 1593 | Lisp_Object string; |
| 1594 | |
| 1595 | string = AREF (items, i + 1); |
| 1596 | if (NILP (string)) |
| 1597 | break; |
| 1598 | |
| 1599 | wv = xmalloc_widget_value (); |
| 1600 | wv->name = (char *) SDATA (string); |
| 1601 | wv->value = 0; |
| 1602 | wv->enabled = 1; |
| 1603 | wv->button_type = BUTTON_TYPE_NONE; |
| 1604 | wv->help = Qnil; |
| 1605 | /* This prevents lwlib from assuming this |
| 1606 | menu item is really supposed to be empty. */ |
| 1607 | /* The EMACS_INT cast avoids a warning. |
| 1608 | This value just has to be different from small integers. */ |
| 1609 | wv->call_data = (void *) (EMACS_INT) (-1); |
| 1610 | |
| 1611 | if (prev_wv) |
| 1612 | prev_wv->next = wv; |
| 1613 | else |
| 1614 | first_wv->contents = wv; |
| 1615 | prev_wv = wv; |
| 1616 | } |
| 1617 | |
| 1618 | /* Forget what we thought we knew about what is in the |
| 1619 | detailed contents of the menu bar menus. |
| 1620 | Changing the top level always destroys the contents. */ |
| 1621 | f->menu_bar_items_used = 0; |
| 1622 | } |
| 1623 | |
| 1624 | /* Create or update the menu bar widget. */ |
| 1625 | |
| 1626 | BLOCK_INPUT; |
| 1627 | |
| 1628 | if (menubar_widget) |
| 1629 | { |
| 1630 | /* Empty current menubar, rather than creating a fresh one. */ |
| 1631 | while (DeleteMenu (menubar_widget, 0, MF_BYPOSITION)) |
| 1632 | ; |
| 1633 | } |
| 1634 | else |
| 1635 | { |
| 1636 | menubar_widget = CreateMenu (); |
| 1637 | } |
| 1638 | fill_in_menu (menubar_widget, first_wv->contents); |
| 1639 | |
| 1640 | free_menubar_widget_value_tree (first_wv); |
| 1641 | |
| 1642 | { |
| 1643 | HMENU old_widget = f->output_data.w32->menubar_widget; |
| 1644 | |
| 1645 | f->output_data.w32->menubar_widget = menubar_widget; |
| 1646 | SetMenu (FRAME_W32_WINDOW (f), f->output_data.w32->menubar_widget); |
| 1647 | /* Causes flicker when menu bar is updated |
| 1648 | DrawMenuBar (FRAME_W32_WINDOW (f)); */ |
| 1649 | |
| 1650 | /* Force the window size to be recomputed so that the frame's text |
| 1651 | area remains the same, if menubar has just been created. */ |
| 1652 | if (old_widget == NULL) |
| 1653 | x_set_window_size (f, 0, FRAME_COLS (f), FRAME_LINES (f)); |
| 1654 | } |
| 1655 | |
| 1656 | UNBLOCK_INPUT; |
| 1657 | } |
| 1658 | |
| 1659 | /* Called from Fx_create_frame to create the initial menubar of a frame |
| 1660 | before it is mapped, so that the window is mapped with the menubar already |
| 1661 | there instead of us tacking it on later and thrashing the window after it |
| 1662 | is visible. */ |
| 1663 | |
| 1664 | void |
| 1665 | initialize_frame_menubar (f) |
| 1666 | FRAME_PTR f; |
| 1667 | { |
| 1668 | /* This function is called before the first chance to redisplay |
| 1669 | the frame. It has to be, so the frame will have the right size. */ |
| 1670 | FRAME_MENU_BAR_ITEMS (f) = menu_bar_items (FRAME_MENU_BAR_ITEMS (f)); |
| 1671 | set_frame_menubar (f, 1, 1); |
| 1672 | } |
| 1673 | |
| 1674 | /* Get rid of the menu bar of frame F, and free its storage. |
| 1675 | This is used when deleting a frame, and when turning off the menu bar. */ |
| 1676 | |
| 1677 | void |
| 1678 | free_frame_menubar (f) |
| 1679 | FRAME_PTR f; |
| 1680 | { |
| 1681 | BLOCK_INPUT; |
| 1682 | |
| 1683 | { |
| 1684 | HMENU old = GetMenu (FRAME_W32_WINDOW (f)); |
| 1685 | SetMenu (FRAME_W32_WINDOW (f), NULL); |
| 1686 | f->output_data.w32->menubar_widget = NULL; |
| 1687 | DestroyMenu (old); |
| 1688 | } |
| 1689 | |
| 1690 | UNBLOCK_INPUT; |
| 1691 | } |
| 1692 | |
| 1693 | \f |
| 1694 | /* w32_menu_show actually displays a menu using the panes and items in |
| 1695 | menu_items and returns the value selected from it; we assume input |
| 1696 | is blocked by the caller. */ |
| 1697 | |
| 1698 | /* F is the frame the menu is for. |
| 1699 | X and Y are the frame-relative specified position, |
| 1700 | relative to the inside upper left corner of the frame F. |
| 1701 | FOR_CLICK is nonzero if this menu was invoked for a mouse click. |
| 1702 | KEYMAPS is 1 if this menu was specified with keymaps; |
| 1703 | in that case, we return a list containing the chosen item's value |
| 1704 | and perhaps also the pane's prefix. |
| 1705 | TITLE is the specified menu title. |
| 1706 | ERROR is a place to store an error message string in case of failure. |
| 1707 | (We return nil on failure, but the value doesn't actually matter.) */ |
| 1708 | |
| 1709 | static Lisp_Object |
| 1710 | w32_menu_show (f, x, y, for_click, keymaps, title, error) |
| 1711 | FRAME_PTR f; |
| 1712 | int x; |
| 1713 | int y; |
| 1714 | int for_click; |
| 1715 | int keymaps; |
| 1716 | Lisp_Object title; |
| 1717 | char **error; |
| 1718 | { |
| 1719 | int i; |
| 1720 | int menu_item_selection; |
| 1721 | HMENU menu; |
| 1722 | POINT pos; |
| 1723 | widget_value *wv, *save_wv = 0, *first_wv = 0, *prev_wv = 0; |
| 1724 | widget_value **submenu_stack |
| 1725 | = (widget_value **) alloca (menu_items_used * sizeof (widget_value *)); |
| 1726 | Lisp_Object *subprefix_stack |
| 1727 | = (Lisp_Object *) alloca (menu_items_used * sizeof (Lisp_Object)); |
| 1728 | int submenu_depth = 0; |
| 1729 | int first_pane; |
| 1730 | |
| 1731 | *error = NULL; |
| 1732 | |
| 1733 | if (menu_items_used <= MENU_ITEMS_PANE_LENGTH) |
| 1734 | { |
| 1735 | *error = "Empty menu"; |
| 1736 | return Qnil; |
| 1737 | } |
| 1738 | |
| 1739 | /* Create a tree of widget_value objects |
| 1740 | representing the panes and their items. */ |
| 1741 | wv = xmalloc_widget_value (); |
| 1742 | wv->name = "menu"; |
| 1743 | wv->value = 0; |
| 1744 | wv->enabled = 1; |
| 1745 | wv->button_type = BUTTON_TYPE_NONE; |
| 1746 | wv->help = Qnil; |
| 1747 | first_wv = wv; |
| 1748 | first_pane = 1; |
| 1749 | |
| 1750 | /* Loop over all panes and items, filling in the tree. */ |
| 1751 | i = 0; |
| 1752 | while (i < menu_items_used) |
| 1753 | { |
| 1754 | if (EQ (AREF (menu_items, i), Qnil)) |
| 1755 | { |
| 1756 | submenu_stack[submenu_depth++] = save_wv; |
| 1757 | save_wv = prev_wv; |
| 1758 | prev_wv = 0; |
| 1759 | first_pane = 1; |
| 1760 | i++; |
| 1761 | } |
| 1762 | else if (EQ (AREF (menu_items, i), Qlambda)) |
| 1763 | { |
| 1764 | prev_wv = save_wv; |
| 1765 | save_wv = submenu_stack[--submenu_depth]; |
| 1766 | first_pane = 0; |
| 1767 | i++; |
| 1768 | } |
| 1769 | else if (EQ (AREF (menu_items, i), Qt) |
| 1770 | && submenu_depth != 0) |
| 1771 | i += MENU_ITEMS_PANE_LENGTH; |
| 1772 | /* Ignore a nil in the item list. |
| 1773 | It's meaningful only for dialog boxes. */ |
| 1774 | else if (EQ (AREF (menu_items, i), Qquote)) |
| 1775 | i += 1; |
| 1776 | else if (EQ (AREF (menu_items, i), Qt)) |
| 1777 | { |
| 1778 | /* Create a new pane. */ |
| 1779 | Lisp_Object pane_name, prefix; |
| 1780 | char *pane_string; |
| 1781 | pane_name = AREF (menu_items, i + MENU_ITEMS_PANE_NAME); |
| 1782 | prefix = AREF (menu_items, i + MENU_ITEMS_PANE_PREFIX); |
| 1783 | |
| 1784 | if (STRINGP (pane_name)) |
| 1785 | { |
| 1786 | if (unicode_append_menu) |
| 1787 | pane_name = ENCODE_UTF_8 (pane_name); |
| 1788 | else if (STRING_MULTIBYTE (pane_name)) |
| 1789 | pane_name = ENCODE_SYSTEM (pane_name); |
| 1790 | |
| 1791 | ASET (menu_items, i + MENU_ITEMS_PANE_NAME, pane_name); |
| 1792 | } |
| 1793 | |
| 1794 | pane_string = (NILP (pane_name) |
| 1795 | ? "" : (char *) SDATA (pane_name)); |
| 1796 | /* If there is just one top-level pane, put all its items directly |
| 1797 | under the top-level menu. */ |
| 1798 | if (menu_items_n_panes == 1) |
| 1799 | pane_string = ""; |
| 1800 | |
| 1801 | /* If the pane has a meaningful name, |
| 1802 | make the pane a top-level menu item |
| 1803 | with its items as a submenu beneath it. */ |
| 1804 | if (!keymaps && strcmp (pane_string, "")) |
| 1805 | { |
| 1806 | wv = xmalloc_widget_value (); |
| 1807 | if (save_wv) |
| 1808 | save_wv->next = wv; |
| 1809 | else |
| 1810 | first_wv->contents = wv; |
| 1811 | wv->name = pane_string; |
| 1812 | if (keymaps && !NILP (prefix)) |
| 1813 | wv->name++; |
| 1814 | wv->value = 0; |
| 1815 | wv->enabled = 1; |
| 1816 | wv->button_type = BUTTON_TYPE_NONE; |
| 1817 | wv->help = Qnil; |
| 1818 | save_wv = wv; |
| 1819 | prev_wv = 0; |
| 1820 | } |
| 1821 | else if (first_pane) |
| 1822 | { |
| 1823 | save_wv = wv; |
| 1824 | prev_wv = 0; |
| 1825 | } |
| 1826 | first_pane = 0; |
| 1827 | i += MENU_ITEMS_PANE_LENGTH; |
| 1828 | } |
| 1829 | else |
| 1830 | { |
| 1831 | /* Create a new item within current pane. */ |
| 1832 | Lisp_Object item_name, enable, descrip, def, type, selected, help; |
| 1833 | |
| 1834 | item_name = AREF (menu_items, i + MENU_ITEMS_ITEM_NAME); |
| 1835 | enable = AREF (menu_items, i + MENU_ITEMS_ITEM_ENABLE); |
| 1836 | descrip = AREF (menu_items, i + MENU_ITEMS_ITEM_EQUIV_KEY); |
| 1837 | def = AREF (menu_items, i + MENU_ITEMS_ITEM_DEFINITION); |
| 1838 | type = AREF (menu_items, i + MENU_ITEMS_ITEM_TYPE); |
| 1839 | selected = AREF (menu_items, i + MENU_ITEMS_ITEM_SELECTED); |
| 1840 | help = AREF (menu_items, i + MENU_ITEMS_ITEM_HELP); |
| 1841 | |
| 1842 | if (STRINGP (item_name)) |
| 1843 | { |
| 1844 | if (unicode_append_menu) |
| 1845 | item_name = ENCODE_UTF_8 (item_name); |
| 1846 | else if (STRING_MULTIBYTE (item_name)) |
| 1847 | item_name = ENCODE_SYSTEM (item_name); |
| 1848 | |
| 1849 | ASET (menu_items, i + MENU_ITEMS_ITEM_NAME, item_name); |
| 1850 | } |
| 1851 | |
| 1852 | if (STRINGP (descrip) && STRING_MULTIBYTE (descrip)) |
| 1853 | { |
| 1854 | descrip = ENCODE_SYSTEM (descrip); |
| 1855 | ASET (menu_items, i + MENU_ITEMS_ITEM_EQUIV_KEY, descrip); |
| 1856 | } |
| 1857 | |
| 1858 | wv = xmalloc_widget_value (); |
| 1859 | if (prev_wv) |
| 1860 | prev_wv->next = wv; |
| 1861 | else |
| 1862 | save_wv->contents = wv; |
| 1863 | wv->name = (char *) SDATA (item_name); |
| 1864 | if (!NILP (descrip)) |
| 1865 | wv->key = (char *) SDATA (descrip); |
| 1866 | wv->value = 0; |
| 1867 | /* Use the contents index as call_data, since we are |
| 1868 | restricted to 16-bits. */ |
| 1869 | wv->call_data = !NILP (def) ? (void *) (EMACS_INT) i : 0; |
| 1870 | wv->enabled = !NILP (enable); |
| 1871 | |
| 1872 | if (NILP (type)) |
| 1873 | wv->button_type = BUTTON_TYPE_NONE; |
| 1874 | else if (EQ (type, QCtoggle)) |
| 1875 | wv->button_type = BUTTON_TYPE_TOGGLE; |
| 1876 | else if (EQ (type, QCradio)) |
| 1877 | wv->button_type = BUTTON_TYPE_RADIO; |
| 1878 | else |
| 1879 | abort (); |
| 1880 | |
| 1881 | wv->selected = !NILP (selected); |
| 1882 | if (!STRINGP (help)) |
| 1883 | help = Qnil; |
| 1884 | |
| 1885 | wv->help = help; |
| 1886 | |
| 1887 | prev_wv = wv; |
| 1888 | |
| 1889 | i += MENU_ITEMS_ITEM_LENGTH; |
| 1890 | } |
| 1891 | } |
| 1892 | |
| 1893 | /* Deal with the title, if it is non-nil. */ |
| 1894 | if (!NILP (title)) |
| 1895 | { |
| 1896 | widget_value *wv_title = xmalloc_widget_value (); |
| 1897 | widget_value *wv_sep = xmalloc_widget_value (); |
| 1898 | |
| 1899 | /* Maybe replace this separator with a bitmap or owner-draw item |
| 1900 | so that it looks better. Having two separators looks odd. */ |
| 1901 | wv_sep->name = "--"; |
| 1902 | wv_sep->next = first_wv->contents; |
| 1903 | wv_sep->help = Qnil; |
| 1904 | |
| 1905 | if (unicode_append_menu) |
| 1906 | title = ENCODE_UTF_8 (title); |
| 1907 | else if (STRING_MULTIBYTE (title)) |
| 1908 | title = ENCODE_SYSTEM (title); |
| 1909 | |
| 1910 | wv_title->name = (char *) SDATA (title); |
| 1911 | wv_title->enabled = TRUE; |
| 1912 | wv_title->title = TRUE; |
| 1913 | wv_title->button_type = BUTTON_TYPE_NONE; |
| 1914 | wv_title->help = Qnil; |
| 1915 | wv_title->next = wv_sep; |
| 1916 | first_wv->contents = wv_title; |
| 1917 | } |
| 1918 | |
| 1919 | /* Actually create the menu. */ |
| 1920 | current_popup_menu = menu = CreatePopupMenu (); |
| 1921 | fill_in_menu (menu, first_wv->contents); |
| 1922 | |
| 1923 | /* Adjust coordinates to be root-window-relative. */ |
| 1924 | pos.x = x; |
| 1925 | pos.y = y; |
| 1926 | ClientToScreen (FRAME_W32_WINDOW (f), &pos); |
| 1927 | |
| 1928 | /* No selection has been chosen yet. */ |
| 1929 | menu_item_selection = 0; |
| 1930 | |
| 1931 | /* Display the menu. */ |
| 1932 | menu_item_selection = SendMessage (FRAME_W32_WINDOW (f), |
| 1933 | WM_EMACS_TRACKPOPUPMENU, |
| 1934 | (WPARAM)menu, (LPARAM)&pos); |
| 1935 | |
| 1936 | /* Clean up extraneous mouse events which might have been generated |
| 1937 | during the call. */ |
| 1938 | discard_mouse_events (); |
| 1939 | |
| 1940 | /* Free the widget_value objects we used to specify the contents. */ |
| 1941 | free_menubar_widget_value_tree (first_wv); |
| 1942 | |
| 1943 | DestroyMenu (menu); |
| 1944 | |
| 1945 | /* Find the selected item, and its pane, to return |
| 1946 | the proper value. */ |
| 1947 | if (menu_item_selection != 0) |
| 1948 | { |
| 1949 | Lisp_Object prefix, entry; |
| 1950 | |
| 1951 | prefix = entry = Qnil; |
| 1952 | i = 0; |
| 1953 | while (i < menu_items_used) |
| 1954 | { |
| 1955 | if (EQ (AREF (menu_items, i), Qnil)) |
| 1956 | { |
| 1957 | subprefix_stack[submenu_depth++] = prefix; |
| 1958 | prefix = entry; |
| 1959 | i++; |
| 1960 | } |
| 1961 | else if (EQ (AREF (menu_items, i), Qlambda)) |
| 1962 | { |
| 1963 | prefix = subprefix_stack[--submenu_depth]; |
| 1964 | i++; |
| 1965 | } |
| 1966 | else if (EQ (AREF (menu_items, i), Qt)) |
| 1967 | { |
| 1968 | prefix = AREF (menu_items, i + MENU_ITEMS_PANE_PREFIX); |
| 1969 | i += MENU_ITEMS_PANE_LENGTH; |
| 1970 | } |
| 1971 | /* Ignore a nil in the item list. |
| 1972 | It's meaningful only for dialog boxes. */ |
| 1973 | else if (EQ (AREF (menu_items, i), Qquote)) |
| 1974 | i += 1; |
| 1975 | else |
| 1976 | { |
| 1977 | entry = AREF (menu_items, i + MENU_ITEMS_ITEM_VALUE); |
| 1978 | if (menu_item_selection == i) |
| 1979 | { |
| 1980 | if (keymaps != 0) |
| 1981 | { |
| 1982 | int j; |
| 1983 | |
| 1984 | entry = Fcons (entry, Qnil); |
| 1985 | if (!NILP (prefix)) |
| 1986 | entry = Fcons (prefix, entry); |
| 1987 | for (j = submenu_depth - 1; j >= 0; j--) |
| 1988 | if (!NILP (subprefix_stack[j])) |
| 1989 | entry = Fcons (subprefix_stack[j], entry); |
| 1990 | } |
| 1991 | return entry; |
| 1992 | } |
| 1993 | i += MENU_ITEMS_ITEM_LENGTH; |
| 1994 | } |
| 1995 | } |
| 1996 | } |
| 1997 | else if (!for_click) |
| 1998 | /* Make "Cancel" equivalent to C-g. */ |
| 1999 | Fsignal (Qquit, Qnil); |
| 2000 | |
| 2001 | return Qnil; |
| 2002 | } |
| 2003 | \f |
| 2004 | |
| 2005 | #ifdef HAVE_DIALOGS |
| 2006 | static char * button_names [] = { |
| 2007 | "button1", "button2", "button3", "button4", "button5", |
| 2008 | "button6", "button7", "button8", "button9", "button10" }; |
| 2009 | |
| 2010 | static Lisp_Object |
| 2011 | w32_dialog_show (f, keymaps, title, header, error) |
| 2012 | FRAME_PTR f; |
| 2013 | int keymaps; |
| 2014 | Lisp_Object title, header; |
| 2015 | char **error; |
| 2016 | { |
| 2017 | int i, nb_buttons=0; |
| 2018 | char dialog_name[6]; |
| 2019 | int menu_item_selection; |
| 2020 | |
| 2021 | widget_value *wv, *first_wv = 0, *prev_wv = 0; |
| 2022 | |
| 2023 | /* Number of elements seen so far, before boundary. */ |
| 2024 | int left_count = 0; |
| 2025 | /* 1 means we've seen the boundary between left-hand elts and right-hand. */ |
| 2026 | int boundary_seen = 0; |
| 2027 | |
| 2028 | *error = NULL; |
| 2029 | |
| 2030 | if (menu_items_n_panes > 1) |
| 2031 | { |
| 2032 | *error = "Multiple panes in dialog box"; |
| 2033 | return Qnil; |
| 2034 | } |
| 2035 | |
| 2036 | /* Create a tree of widget_value objects |
| 2037 | representing the text label and buttons. */ |
| 2038 | { |
| 2039 | Lisp_Object pane_name, prefix; |
| 2040 | char *pane_string; |
| 2041 | pane_name = AREF (menu_items, MENU_ITEMS_PANE_NAME); |
| 2042 | prefix = AREF (menu_items, MENU_ITEMS_PANE_PREFIX); |
| 2043 | pane_string = (NILP (pane_name) |
| 2044 | ? "" : (char *) SDATA (pane_name)); |
| 2045 | prev_wv = xmalloc_widget_value (); |
| 2046 | prev_wv->value = pane_string; |
| 2047 | if (keymaps && !NILP (prefix)) |
| 2048 | prev_wv->name++; |
| 2049 | prev_wv->enabled = 1; |
| 2050 | prev_wv->name = "message"; |
| 2051 | prev_wv->help = Qnil; |
| 2052 | first_wv = prev_wv; |
| 2053 | |
| 2054 | /* Loop over all panes and items, filling in the tree. */ |
| 2055 | i = MENU_ITEMS_PANE_LENGTH; |
| 2056 | while (i < menu_items_used) |
| 2057 | { |
| 2058 | |
| 2059 | /* Create a new item within current pane. */ |
| 2060 | Lisp_Object item_name, enable, descrip, help; |
| 2061 | |
| 2062 | item_name = AREF (menu_items, i + MENU_ITEMS_ITEM_NAME); |
| 2063 | enable = AREF (menu_items, i + MENU_ITEMS_ITEM_ENABLE); |
| 2064 | descrip = AREF (menu_items, i + MENU_ITEMS_ITEM_EQUIV_KEY); |
| 2065 | help = AREF (menu_items, i + MENU_ITEMS_ITEM_HELP); |
| 2066 | |
| 2067 | if (NILP (item_name)) |
| 2068 | { |
| 2069 | free_menubar_widget_value_tree (first_wv); |
| 2070 | *error = "Submenu in dialog items"; |
| 2071 | return Qnil; |
| 2072 | } |
| 2073 | if (EQ (item_name, Qquote)) |
| 2074 | { |
| 2075 | /* This is the boundary between left-side elts |
| 2076 | and right-side elts. Stop incrementing right_count. */ |
| 2077 | boundary_seen = 1; |
| 2078 | i++; |
| 2079 | continue; |
| 2080 | } |
| 2081 | if (nb_buttons >= 9) |
| 2082 | { |
| 2083 | free_menubar_widget_value_tree (first_wv); |
| 2084 | *error = "Too many dialog items"; |
| 2085 | return Qnil; |
| 2086 | } |
| 2087 | |
| 2088 | wv = xmalloc_widget_value (); |
| 2089 | prev_wv->next = wv; |
| 2090 | wv->name = (char *) button_names[nb_buttons]; |
| 2091 | if (!NILP (descrip)) |
| 2092 | wv->key = (char *) SDATA (descrip); |
| 2093 | wv->value = (char *) SDATA (item_name); |
| 2094 | wv->call_data = (void *) &AREF (menu_items, i); |
| 2095 | wv->enabled = !NILP (enable); |
| 2096 | wv->help = Qnil; |
| 2097 | prev_wv = wv; |
| 2098 | |
| 2099 | if (! boundary_seen) |
| 2100 | left_count++; |
| 2101 | |
| 2102 | nb_buttons++; |
| 2103 | i += MENU_ITEMS_ITEM_LENGTH; |
| 2104 | } |
| 2105 | |
| 2106 | /* If the boundary was not specified, |
| 2107 | by default put half on the left and half on the right. */ |
| 2108 | if (! boundary_seen) |
| 2109 | left_count = nb_buttons - nb_buttons / 2; |
| 2110 | |
| 2111 | wv = xmalloc_widget_value (); |
| 2112 | wv->name = dialog_name; |
| 2113 | wv->help = Qnil; |
| 2114 | |
| 2115 | /* Frame title: 'Q' = Question, 'I' = Information. |
| 2116 | Can also have 'E' = Error if, one day, we want |
| 2117 | a popup for errors. */ |
| 2118 | if (NILP(header)) |
| 2119 | dialog_name[0] = 'Q'; |
| 2120 | else |
| 2121 | dialog_name[0] = 'I'; |
| 2122 | |
| 2123 | /* Dialog boxes use a really stupid name encoding |
| 2124 | which specifies how many buttons to use |
| 2125 | and how many buttons are on the right. */ |
| 2126 | dialog_name[1] = '0' + nb_buttons; |
| 2127 | dialog_name[2] = 'B'; |
| 2128 | dialog_name[3] = 'R'; |
| 2129 | /* Number of buttons to put on the right. */ |
| 2130 | dialog_name[4] = '0' + nb_buttons - left_count; |
| 2131 | dialog_name[5] = 0; |
| 2132 | wv->contents = first_wv; |
| 2133 | first_wv = wv; |
| 2134 | } |
| 2135 | |
| 2136 | /* Actually create the dialog. */ |
| 2137 | dialog_id = widget_id_tick++; |
| 2138 | menu = lw_create_widget (first_wv->name, "dialog", dialog_id, first_wv, |
| 2139 | f->output_data.w32->widget, 1, 0, |
| 2140 | dialog_selection_callback, 0); |
| 2141 | lw_modify_all_widgets (dialog_id, first_wv->contents, TRUE); |
| 2142 | |
| 2143 | /* Free the widget_value objects we used to specify the contents. */ |
| 2144 | free_menubar_widget_value_tree (first_wv); |
| 2145 | |
| 2146 | /* No selection has been chosen yet. */ |
| 2147 | menu_item_selection = 0; |
| 2148 | |
| 2149 | /* Display the menu. */ |
| 2150 | lw_pop_up_all_widgets (dialog_id); |
| 2151 | popup_activated_flag = 1; |
| 2152 | |
| 2153 | /* Process events that apply to the menu. */ |
| 2154 | popup_get_selection ((XEvent *) 0, FRAME_X_DISPLAY_INFO (f), dialog_id); |
| 2155 | |
| 2156 | lw_destroy_all_widgets (dialog_id); |
| 2157 | |
| 2158 | /* Find the selected item, and its pane, to return |
| 2159 | the proper value. */ |
| 2160 | if (menu_item_selection != 0) |
| 2161 | { |
| 2162 | Lisp_Object prefix; |
| 2163 | |
| 2164 | prefix = Qnil; |
| 2165 | i = 0; |
| 2166 | while (i < menu_items_used) |
| 2167 | { |
| 2168 | Lisp_Object entry; |
| 2169 | |
| 2170 | if (EQ (AREF (menu_items, i), Qt)) |
| 2171 | { |
| 2172 | prefix = AREF (menu_items, i + MENU_ITEMS_PANE_PREFIX); |
| 2173 | i += MENU_ITEMS_PANE_LENGTH; |
| 2174 | } |
| 2175 | else |
| 2176 | { |
| 2177 | entry = AREF (menu_items, i + MENU_ITEMS_ITEM_VALUE); |
| 2178 | if (menu_item_selection == i) |
| 2179 | { |
| 2180 | if (keymaps != 0) |
| 2181 | { |
| 2182 | entry = Fcons (entry, Qnil); |
| 2183 | if (!NILP (prefix)) |
| 2184 | entry = Fcons (prefix, entry); |
| 2185 | } |
| 2186 | return entry; |
| 2187 | } |
| 2188 | i += MENU_ITEMS_ITEM_LENGTH; |
| 2189 | } |
| 2190 | } |
| 2191 | } |
| 2192 | else |
| 2193 | /* Make "Cancel" equivalent to C-g. */ |
| 2194 | Fsignal (Qquit, Qnil); |
| 2195 | |
| 2196 | return Qnil; |
| 2197 | } |
| 2198 | #endif /* HAVE_DIALOGS */ |
| 2199 | \f |
| 2200 | |
| 2201 | /* Is this item a separator? */ |
| 2202 | static int |
| 2203 | name_is_separator (name) |
| 2204 | char *name; |
| 2205 | { |
| 2206 | char *start = name; |
| 2207 | |
| 2208 | /* Check if name string consists of only dashes ('-'). */ |
| 2209 | while (*name == '-') name++; |
| 2210 | /* Separators can also be of the form "--:TripleSuperMegaEtched" |
| 2211 | or "--deep-shadow". We don't implement them yet, se we just treat |
| 2212 | them like normal separators. */ |
| 2213 | return (*name == '\0' || start + 2 == name); |
| 2214 | } |
| 2215 | |
| 2216 | |
| 2217 | /* Indicate boundary between left and right. */ |
| 2218 | static int |
| 2219 | add_left_right_boundary (HMENU menu) |
| 2220 | { |
| 2221 | return AppendMenu (menu, MF_MENUBARBREAK, 0, NULL); |
| 2222 | } |
| 2223 | |
| 2224 | /* UTF8: 0xxxxxxx, 110xxxxx 10xxxxxx, 1110xxxx, 10xxxxxx, 10xxxxxx */ |
| 2225 | static void |
| 2226 | utf8to16 (unsigned char * src, int len, WCHAR * dest) |
| 2227 | { |
| 2228 | while (len > 0) |
| 2229 | { |
| 2230 | int utf16; |
| 2231 | if (*src < 0x80) |
| 2232 | { |
| 2233 | *dest = (WCHAR) *src; |
| 2234 | dest++; src++; len--; |
| 2235 | } |
| 2236 | /* Since we might get >3 byte sequences which we don't handle, ignore the extra parts. */ |
| 2237 | else if (*src < 0xC0) |
| 2238 | { |
| 2239 | src++; len--; |
| 2240 | } |
| 2241 | /* 2 char UTF-8 sequence. */ |
| 2242 | else if (*src < 0xE0) |
| 2243 | { |
| 2244 | *dest = (WCHAR) (((*src & 0x1f) << 6) |
| 2245 | | (*(src + 1) & 0x3f)); |
| 2246 | src += 2; len -= 2; dest++; |
| 2247 | } |
| 2248 | else if (*src < 0xF0) |
| 2249 | { |
| 2250 | *dest = (WCHAR) (((*src & 0x0f) << 12) |
| 2251 | | ((*(src + 1) & 0x3f) << 6) |
| 2252 | | (*(src + 2) & 0x3f)); |
| 2253 | src += 3; len -= 3; dest++; |
| 2254 | } |
| 2255 | else /* Not encodable. Insert Unicode Substitution char. */ |
| 2256 | { |
| 2257 | *dest = (WCHAR) 0xfffd; |
| 2258 | src++; len--; dest++; |
| 2259 | } |
| 2260 | } |
| 2261 | *dest = 0; |
| 2262 | } |
| 2263 | |
| 2264 | static int |
| 2265 | add_menu_item (HMENU menu, widget_value *wv, HMENU item) |
| 2266 | { |
| 2267 | UINT fuFlags; |
| 2268 | char *out_string; |
| 2269 | int return_value; |
| 2270 | |
| 2271 | if (name_is_separator (wv->name)) |
| 2272 | { |
| 2273 | fuFlags = MF_SEPARATOR; |
| 2274 | out_string = NULL; |
| 2275 | } |
| 2276 | else |
| 2277 | { |
| 2278 | if (wv->enabled) |
| 2279 | fuFlags = MF_STRING; |
| 2280 | else |
| 2281 | fuFlags = MF_STRING | MF_GRAYED; |
| 2282 | |
| 2283 | if (wv->key != NULL) |
| 2284 | { |
| 2285 | out_string = alloca (strlen (wv->name) + strlen (wv->key) + 2); |
| 2286 | strcpy (out_string, wv->name); |
| 2287 | strcat (out_string, "\t"); |
| 2288 | strcat (out_string, wv->key); |
| 2289 | } |
| 2290 | else |
| 2291 | out_string = wv->name; |
| 2292 | |
| 2293 | if (item != NULL) |
| 2294 | fuFlags = MF_POPUP; |
| 2295 | else if (wv->title || wv->call_data == 0) |
| 2296 | { |
| 2297 | /* Only use MF_OWNERDRAW if GetMenuItemInfo is usable, since |
| 2298 | we can't deallocate the memory otherwise. */ |
| 2299 | if (get_menu_item_info) |
| 2300 | { |
| 2301 | out_string = (char *) local_alloc (strlen (wv->name) + 1); |
| 2302 | strcpy (out_string, wv->name); |
| 2303 | #ifdef MENU_DEBUG |
| 2304 | DebPrint ("Menu: allocing %ld for owner-draw", out_string); |
| 2305 | #endif |
| 2306 | fuFlags = MF_OWNERDRAW | MF_DISABLED; |
| 2307 | } |
| 2308 | else |
| 2309 | fuFlags = MF_DISABLED; |
| 2310 | } |
| 2311 | |
| 2312 | /* Draw radio buttons and tickboxes. */ |
| 2313 | else if (wv->selected && (wv->button_type == BUTTON_TYPE_TOGGLE || |
| 2314 | wv->button_type == BUTTON_TYPE_RADIO)) |
| 2315 | fuFlags |= MF_CHECKED; |
| 2316 | else |
| 2317 | fuFlags |= MF_UNCHECKED; |
| 2318 | } |
| 2319 | |
| 2320 | if (unicode_append_menu && out_string) |
| 2321 | { |
| 2322 | /* Convert out_string from UTF-8 to UTF-16-LE. */ |
| 2323 | int utf8_len = strlen (out_string); |
| 2324 | WCHAR * utf16_string; |
| 2325 | if (fuFlags & MF_OWNERDRAW) |
| 2326 | utf16_string = local_alloc ((utf8_len + 1) * sizeof (WCHAR)); |
| 2327 | else |
| 2328 | utf16_string = alloca ((utf8_len + 1) * sizeof (WCHAR)); |
| 2329 | |
| 2330 | utf8to16 (out_string, utf8_len, utf16_string); |
| 2331 | return_value = unicode_append_menu (menu, fuFlags, |
| 2332 | item != NULL ? (UINT) item |
| 2333 | : (UINT) wv->call_data, |
| 2334 | utf16_string); |
| 2335 | if (!return_value) |
| 2336 | { |
| 2337 | /* On W9x/ME, unicode menus are not supported, though AppendMenuW |
| 2338 | apparently does exist at least in some cases and appears to be |
| 2339 | stubbed out to do nothing. out_string is UTF-8, but since |
| 2340 | our standard menus are in English and this is only going to |
| 2341 | happen the first time a menu is used, the encoding is |
| 2342 | of minor importance compared with menus not working at all. */ |
| 2343 | return_value = |
| 2344 | AppendMenu (menu, fuFlags, |
| 2345 | item != NULL ? (UINT) item: (UINT) wv->call_data, |
| 2346 | out_string); |
| 2347 | /* Don't use unicode menus in future. */ |
| 2348 | unicode_append_menu = NULL; |
| 2349 | } |
| 2350 | |
| 2351 | if (unicode_append_menu && (fuFlags & MF_OWNERDRAW)) |
| 2352 | local_free (out_string); |
| 2353 | } |
| 2354 | else |
| 2355 | { |
| 2356 | return_value = |
| 2357 | AppendMenu (menu, |
| 2358 | fuFlags, |
| 2359 | item != NULL ? (UINT) item : (UINT) wv->call_data, |
| 2360 | out_string ); |
| 2361 | } |
| 2362 | |
| 2363 | /* This must be done after the menu item is created. */ |
| 2364 | if (!wv->title && wv->call_data != 0) |
| 2365 | { |
| 2366 | if (set_menu_item_info) |
| 2367 | { |
| 2368 | MENUITEMINFO info; |
| 2369 | bzero (&info, sizeof (info)); |
| 2370 | info.cbSize = sizeof (info); |
| 2371 | info.fMask = MIIM_DATA; |
| 2372 | |
| 2373 | /* Set help string for menu item. Leave it as a Lisp_Object |
| 2374 | until it is ready to be displayed, since GC can happen while |
| 2375 | menus are active. */ |
| 2376 | if (!NILP (wv->help)) |
| 2377 | #ifdef USE_LISP_UNION_TYPE |
| 2378 | info.dwItemData = (DWORD) (wv->help).i; |
| 2379 | #else |
| 2380 | info.dwItemData = (DWORD) (wv->help); |
| 2381 | #endif |
| 2382 | if (wv->button_type == BUTTON_TYPE_RADIO) |
| 2383 | { |
| 2384 | /* CheckMenuRadioItem allows us to differentiate TOGGLE and |
| 2385 | RADIO items, but is not available on NT 3.51 and earlier. */ |
| 2386 | info.fMask |= MIIM_TYPE | MIIM_STATE; |
| 2387 | info.fType = MFT_RADIOCHECK | MFT_STRING; |
| 2388 | info.dwTypeData = out_string; |
| 2389 | info.fState = wv->selected ? MFS_CHECKED : MFS_UNCHECKED; |
| 2390 | } |
| 2391 | |
| 2392 | set_menu_item_info (menu, |
| 2393 | item != NULL ? (UINT) item : (UINT) wv->call_data, |
| 2394 | FALSE, &info); |
| 2395 | } |
| 2396 | } |
| 2397 | return return_value; |
| 2398 | } |
| 2399 | |
| 2400 | /* Construct native Windows menu(bar) based on widget_value tree. */ |
| 2401 | int |
| 2402 | fill_in_menu (HMENU menu, widget_value *wv) |
| 2403 | { |
| 2404 | int items_added = 0; |
| 2405 | |
| 2406 | for ( ; wv != NULL; wv = wv->next) |
| 2407 | { |
| 2408 | if (wv->contents) |
| 2409 | { |
| 2410 | HMENU sub_menu = CreatePopupMenu (); |
| 2411 | |
| 2412 | if (sub_menu == NULL) |
| 2413 | return 0; |
| 2414 | |
| 2415 | if (!fill_in_menu (sub_menu, wv->contents) || |
| 2416 | !add_menu_item (menu, wv, sub_menu)) |
| 2417 | { |
| 2418 | DestroyMenu (sub_menu); |
| 2419 | return 0; |
| 2420 | } |
| 2421 | } |
| 2422 | else |
| 2423 | { |
| 2424 | if (!add_menu_item (menu, wv, NULL)) |
| 2425 | return 0; |
| 2426 | } |
| 2427 | } |
| 2428 | return 1; |
| 2429 | } |
| 2430 | |
| 2431 | int |
| 2432 | popup_activated () |
| 2433 | { |
| 2434 | /* popup_activated_flag not actually used on W32 */ |
| 2435 | return 0; |
| 2436 | } |
| 2437 | |
| 2438 | /* Display help string for currently pointed to menu item. Not |
| 2439 | supported on NT 3.51 and earlier, as GetMenuItemInfo is not |
| 2440 | available. */ |
| 2441 | void |
| 2442 | w32_menu_display_help (HWND owner, HMENU menu, UINT item, UINT flags) |
| 2443 | { |
| 2444 | if (get_menu_item_info) |
| 2445 | { |
| 2446 | struct frame *f = x_window_to_frame (&one_w32_display_info, owner); |
| 2447 | Lisp_Object frame, help; |
| 2448 | |
| 2449 | /* No help echo on owner-draw menu items, or when the keyboard is used |
| 2450 | to navigate the menus, since tooltips are distracting if they pop |
| 2451 | up elsewhere. */ |
| 2452 | if (flags & MF_OWNERDRAW || flags & MF_POPUP |
| 2453 | || !(flags & MF_MOUSESELECT)) |
| 2454 | help = Qnil; |
| 2455 | else |
| 2456 | { |
| 2457 | MENUITEMINFO info; |
| 2458 | |
| 2459 | bzero (&info, sizeof (info)); |
| 2460 | info.cbSize = sizeof (info); |
| 2461 | info.fMask = MIIM_DATA; |
| 2462 | get_menu_item_info (menu, item, FALSE, &info); |
| 2463 | |
| 2464 | #ifdef USE_LISP_UNION_TYPE |
| 2465 | help = info.dwItemData ? (Lisp_Object) ((EMACS_INT) info.dwItemData) |
| 2466 | : Qnil; |
| 2467 | #else |
| 2468 | help = info.dwItemData ? (Lisp_Object) info.dwItemData : Qnil; |
| 2469 | #endif |
| 2470 | } |
| 2471 | |
| 2472 | /* Store the help echo in the keyboard buffer as the X toolkit |
| 2473 | version does, rather than directly showing it. This seems to |
| 2474 | solve the GC problems that were present when we based the |
| 2475 | Windows code on the non-toolkit version. */ |
| 2476 | if (f) |
| 2477 | { |
| 2478 | XSETFRAME (frame, f); |
| 2479 | kbd_buffer_store_help_event (frame, help); |
| 2480 | } |
| 2481 | else |
| 2482 | /* X version has a loop through frames here, which doesn't |
| 2483 | appear to do anything, unless it has some side effect. */ |
| 2484 | show_help_echo (help, Qnil, Qnil, Qnil, 1); |
| 2485 | } |
| 2486 | } |
| 2487 | |
| 2488 | /* Free memory used by owner-drawn strings. */ |
| 2489 | static void |
| 2490 | w32_free_submenu_strings (menu) |
| 2491 | HMENU menu; |
| 2492 | { |
| 2493 | int i, num = GetMenuItemCount (menu); |
| 2494 | for (i = 0; i < num; i++) |
| 2495 | { |
| 2496 | MENUITEMINFO info; |
| 2497 | bzero (&info, sizeof (info)); |
| 2498 | info.cbSize = sizeof (info); |
| 2499 | info.fMask = MIIM_DATA | MIIM_TYPE | MIIM_SUBMENU; |
| 2500 | |
| 2501 | get_menu_item_info (menu, i, TRUE, &info); |
| 2502 | |
| 2503 | /* Owner-drawn names are held in dwItemData. */ |
| 2504 | if ((info.fType & MF_OWNERDRAW) && info.dwItemData) |
| 2505 | { |
| 2506 | #ifdef MENU_DEBUG |
| 2507 | DebPrint ("Menu: freeing %ld for owner-draw", info.dwItemData); |
| 2508 | #endif |
| 2509 | local_free (info.dwItemData); |
| 2510 | } |
| 2511 | |
| 2512 | /* Recurse down submenus. */ |
| 2513 | if (info.hSubMenu) |
| 2514 | w32_free_submenu_strings (info.hSubMenu); |
| 2515 | } |
| 2516 | } |
| 2517 | |
| 2518 | void |
| 2519 | w32_free_menu_strings (hwnd) |
| 2520 | HWND hwnd; |
| 2521 | { |
| 2522 | HMENU menu = current_popup_menu; |
| 2523 | |
| 2524 | if (get_menu_item_info) |
| 2525 | { |
| 2526 | /* If there is no popup menu active, free the strings from the frame's |
| 2527 | menubar. */ |
| 2528 | if (!menu) |
| 2529 | menu = GetMenu (hwnd); |
| 2530 | |
| 2531 | if (menu) |
| 2532 | w32_free_submenu_strings (menu); |
| 2533 | } |
| 2534 | |
| 2535 | current_popup_menu = NULL; |
| 2536 | } |
| 2537 | |
| 2538 | #endif /* HAVE_MENUS */ |
| 2539 | |
| 2540 | void syms_of_w32menu () |
| 2541 | { |
| 2542 | globals_of_w32menu (); |
| 2543 | staticpro (&menu_items); |
| 2544 | menu_items = Qnil; |
| 2545 | |
| 2546 | current_popup_menu = NULL; |
| 2547 | |
| 2548 | Qdebug_on_next_call = intern ("debug-on-next-call"); |
| 2549 | staticpro (&Qdebug_on_next_call); |
| 2550 | |
| 2551 | DEFVAR_LISP ("menu-updating-frame", &Vmenu_updating_frame, |
| 2552 | doc: /* Frame for which we are updating a menu. |
| 2553 | The enable predicate for a menu command should check this variable. */); |
| 2554 | Vmenu_updating_frame = Qnil; |
| 2555 | |
| 2556 | defsubr (&Sx_popup_menu); |
| 2557 | #ifdef HAVE_MENUS |
| 2558 | defsubr (&Sx_popup_dialog); |
| 2559 | #endif |
| 2560 | } |
| 2561 | |
| 2562 | /* |
| 2563 | globals_of_w32menu is used to initialize those global variables that |
| 2564 | must always be initialized on startup even when the global variable |
| 2565 | initialized is non zero (see the function main in emacs.c). |
| 2566 | globals_of_w32menu is called from syms_of_w32menu when the global |
| 2567 | variable initialized is 0 and directly from main when initialized |
| 2568 | is non zero. |
| 2569 | */ |
| 2570 | void globals_of_w32menu () |
| 2571 | { |
| 2572 | /* See if Get/SetMenuItemInfo functions are available. */ |
| 2573 | HMODULE user32 = GetModuleHandle ("user32.dll"); |
| 2574 | get_menu_item_info = (GetMenuItemInfoA_Proc) GetProcAddress (user32, "GetMenuItemInfoA"); |
| 2575 | set_menu_item_info = (SetMenuItemInfoA_Proc) GetProcAddress (user32, "SetMenuItemInfoA"); |
| 2576 | unicode_append_menu = (AppendMenuW_Proc) GetProcAddress (user32, "AppendMenuW"); |
| 2577 | } |
| 2578 | |
| 2579 | /* arch-tag: 0eaed431-bb4e-4aac-a527-95a1b4f1fed0 |
| 2580 | (do not change this comment) */ |