| 1 | /* Menu support for GNU Emacs on the Microsoft Windows API. |
| 2 | Copyright (C) 1986, 1988, 1993-1994, 1996, 1998-1999, 2001-2012 |
| 3 | 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 3 of the License, or |
| 10 | (at your option) 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. If not, see <http://www.gnu.org/licenses/>. */ |
| 19 | |
| 20 | #include <config.h> |
| 21 | |
| 22 | #include <signal.h> |
| 23 | #include <stdio.h> |
| 24 | #include <mbstring.h> |
| 25 | |
| 26 | #include "lisp.h" |
| 27 | #include "keyboard.h" |
| 28 | #include "keymap.h" |
| 29 | #include "frame.h" |
| 30 | #include "termhooks.h" |
| 31 | #include "window.h" |
| 32 | #include "blockinput.h" |
| 33 | #include "character.h" |
| 34 | #include "buffer.h" |
| 35 | #include "charset.h" |
| 36 | #include "coding.h" |
| 37 | #include "menu.h" |
| 38 | |
| 39 | /* This may include sys/types.h, and that somehow loses |
| 40 | if this is not done before the other system files. */ |
| 41 | #include "w32term.h" |
| 42 | |
| 43 | /* Load sys/types.h if not already loaded. |
| 44 | In some systems loading it twice is suicidal. */ |
| 45 | #ifndef makedev |
| 46 | #include <sys/types.h> |
| 47 | #endif |
| 48 | |
| 49 | #include "dispextern.h" |
| 50 | |
| 51 | #include "w32heap.h" /* for osinfo_cache */ |
| 52 | |
| 53 | #undef HAVE_DIALOGS /* TODO: Implement native dialogs. */ |
| 54 | |
| 55 | #ifndef TRUE |
| 56 | #define TRUE 1 |
| 57 | #define FALSE 0 |
| 58 | #endif /* no TRUE */ |
| 59 | |
| 60 | HMENU current_popup_menu; |
| 61 | |
| 62 | void syms_of_w32menu (void); |
| 63 | void globals_of_w32menu (void); |
| 64 | |
| 65 | typedef BOOL (WINAPI * GetMenuItemInfoA_Proc) ( |
| 66 | IN HMENU, |
| 67 | IN UINT, |
| 68 | IN BOOL, |
| 69 | IN OUT LPMENUITEMINFOA); |
| 70 | typedef BOOL (WINAPI * SetMenuItemInfoA_Proc) ( |
| 71 | IN HMENU, |
| 72 | IN UINT, |
| 73 | IN BOOL, |
| 74 | IN LPCMENUITEMINFOA); |
| 75 | typedef int (WINAPI * MessageBoxW_Proc) ( |
| 76 | IN HWND window, |
| 77 | IN WCHAR *text, |
| 78 | IN WCHAR *caption, |
| 79 | IN UINT type); |
| 80 | |
| 81 | GetMenuItemInfoA_Proc get_menu_item_info = NULL; |
| 82 | SetMenuItemInfoA_Proc set_menu_item_info = NULL; |
| 83 | AppendMenuW_Proc unicode_append_menu = NULL; |
| 84 | MessageBoxW_Proc unicode_message_box = NULL; |
| 85 | |
| 86 | Lisp_Object Qdebug_on_next_call; |
| 87 | |
| 88 | void set_frame_menubar (FRAME_PTR, bool, bool); |
| 89 | |
| 90 | #ifdef HAVE_DIALOGS |
| 91 | static Lisp_Object w32_dialog_show (FRAME_PTR, int, Lisp_Object, char**); |
| 92 | #else |
| 93 | static int is_simple_dialog (Lisp_Object); |
| 94 | static Lisp_Object simple_dialog_show (FRAME_PTR, Lisp_Object, Lisp_Object); |
| 95 | #endif |
| 96 | |
| 97 | static void utf8to16 (unsigned char *, int, WCHAR *); |
| 98 | static int fill_in_menu (HMENU, widget_value *); |
| 99 | |
| 100 | void w32_free_menu_strings (HWND); |
| 101 | \f |
| 102 | |
| 103 | /* This is set nonzero after the user activates the menu bar, and set |
| 104 | to zero again after the menu bars are redisplayed by prepare_menu_bar. |
| 105 | While it is nonzero, all calls to set_frame_menubar go deep. |
| 106 | |
| 107 | I don't understand why this is needed, but it does seem to be |
| 108 | needed on Motif, according to Marcus Daniels <marcus@sysc.pdx.edu>. */ |
| 109 | |
| 110 | int pending_menu_activation; |
| 111 | \f |
| 112 | #ifdef HAVE_MENUS |
| 113 | |
| 114 | DEFUN ("x-popup-dialog", Fx_popup_dialog, Sx_popup_dialog, 2, 3, 0, |
| 115 | doc: /* Pop up a dialog box and return user's selection. |
| 116 | POSITION specifies which frame to use. |
| 117 | This is normally a mouse button event or a window or frame. |
| 118 | If POSITION is t, it means to use the frame the mouse is on. |
| 119 | The dialog box appears in the middle of the specified frame. |
| 120 | |
| 121 | CONTENTS specifies the alternatives to display in the dialog box. |
| 122 | It is a list of the form (TITLE ITEM1 ITEM2...). |
| 123 | Each ITEM is a cons cell (STRING . VALUE). |
| 124 | The return value is VALUE from the chosen item. |
| 125 | |
| 126 | An ITEM may also be just a string--that makes a nonselectable item. |
| 127 | An ITEM may also be nil--that means to put all preceding items |
| 128 | on the left of the dialog box and all following items on the right. |
| 129 | \(By default, approximately half appear on each side.) |
| 130 | |
| 131 | If HEADER is non-nil, the frame title for the box is "Information", |
| 132 | otherwise it is "Question". */) |
| 133 | (Lisp_Object position, Lisp_Object contents, Lisp_Object header) |
| 134 | { |
| 135 | FRAME_PTR f = NULL; |
| 136 | Lisp_Object window; |
| 137 | |
| 138 | check_w32 (); |
| 139 | |
| 140 | /* Decode the first argument: find the window or frame to use. */ |
| 141 | if (EQ (position, Qt) |
| 142 | || (CONSP (position) && (EQ (XCAR (position), Qmenu_bar) |
| 143 | || EQ (XCAR (position), Qtool_bar)))) |
| 144 | { |
| 145 | #if 0 /* Using the frame the mouse is on may not be right. */ |
| 146 | /* Use the mouse's current position. */ |
| 147 | FRAME_PTR new_f = SELECTED_FRAME (); |
| 148 | Lisp_Object bar_window; |
| 149 | enum scroll_bar_part part; |
| 150 | Time time; |
| 151 | Lisp_Object x, y; |
| 152 | |
| 153 | (*mouse_position_hook) (&new_f, 1, &bar_window, &part, &x, &y, &time); |
| 154 | |
| 155 | if (new_f != 0) |
| 156 | XSETFRAME (window, new_f); |
| 157 | else |
| 158 | window = selected_window; |
| 159 | #endif |
| 160 | window = selected_window; |
| 161 | } |
| 162 | else if (CONSP (position)) |
| 163 | { |
| 164 | Lisp_Object tem = XCAR (position); |
| 165 | if (CONSP (tem)) |
| 166 | window = Fcar (XCDR (position)); |
| 167 | else |
| 168 | { |
| 169 | tem = Fcar (XCDR (position)); /* EVENT_START (position) */ |
| 170 | window = Fcar (tem); /* POSN_WINDOW (tem) */ |
| 171 | } |
| 172 | } |
| 173 | else if (WINDOWP (position) || FRAMEP (position)) |
| 174 | window = position; |
| 175 | else |
| 176 | window = Qnil; |
| 177 | |
| 178 | /* Decode where to put the menu. */ |
| 179 | |
| 180 | if (FRAMEP (window)) |
| 181 | f = XFRAME (window); |
| 182 | else if (WINDOWP (window)) |
| 183 | { |
| 184 | CHECK_LIVE_WINDOW (window); |
| 185 | f = XFRAME (WINDOW_FRAME (XWINDOW (window))); |
| 186 | } |
| 187 | else |
| 188 | /* ??? Not really clean; should be CHECK_WINDOW_OR_FRAME, |
| 189 | but I don't want to make one now. */ |
| 190 | CHECK_WINDOW (window); |
| 191 | |
| 192 | #ifndef HAVE_DIALOGS |
| 193 | |
| 194 | { |
| 195 | /* Handle simple Yes/No choices as MessageBox popups. */ |
| 196 | if (is_simple_dialog (contents)) |
| 197 | return simple_dialog_show (f, contents, header); |
| 198 | else |
| 199 | { |
| 200 | /* Display a menu with these alternatives |
| 201 | in the middle of frame F. */ |
| 202 | Lisp_Object x, y, frame, newpos; |
| 203 | XSETFRAME (frame, f); |
| 204 | XSETINT (x, x_pixel_width (f) / 2); |
| 205 | XSETINT (y, x_pixel_height (f) / 2); |
| 206 | newpos = Fcons (Fcons (x, Fcons (y, Qnil)), Fcons (frame, Qnil)); |
| 207 | return Fx_popup_menu (newpos, |
| 208 | Fcons (Fcar (contents), Fcons (contents, Qnil))); |
| 209 | } |
| 210 | } |
| 211 | #else /* HAVE_DIALOGS */ |
| 212 | { |
| 213 | Lisp_Object title; |
| 214 | char *error_name; |
| 215 | Lisp_Object selection; |
| 216 | |
| 217 | /* Decode the dialog items from what was specified. */ |
| 218 | title = Fcar (contents); |
| 219 | CHECK_STRING (title); |
| 220 | |
| 221 | list_of_panes (Fcons (contents, Qnil)); |
| 222 | |
| 223 | /* Display them in a dialog box. */ |
| 224 | block_input (); |
| 225 | selection = w32_dialog_show (f, 0, title, header, &error_name); |
| 226 | unblock_input (); |
| 227 | |
| 228 | discard_menu_items (); |
| 229 | FRAME_X_DISPLAY_INFO (f)->grabbed = 0; |
| 230 | |
| 231 | if (error_name) error (error_name); |
| 232 | return selection; |
| 233 | } |
| 234 | #endif /* HAVE_DIALOGS */ |
| 235 | } |
| 236 | |
| 237 | /* Activate the menu bar of frame F. |
| 238 | This is called from keyboard.c when it gets the |
| 239 | MENU_BAR_ACTIVATE_EVENT out of the Emacs event queue. |
| 240 | |
| 241 | To activate the menu bar, we signal to the input thread that it can |
| 242 | return from the WM_INITMENU message, allowing the normal Windows |
| 243 | processing of the menus. |
| 244 | |
| 245 | But first we recompute the menu bar contents (the whole tree). |
| 246 | |
| 247 | This way we can safely execute Lisp code. */ |
| 248 | |
| 249 | void |
| 250 | x_activate_menubar (FRAME_PTR f) |
| 251 | { |
| 252 | set_frame_menubar (f, 0, 1); |
| 253 | |
| 254 | /* Lock out further menubar changes while active. */ |
| 255 | f->output_data.w32->menubar_active = 1; |
| 256 | |
| 257 | /* Signal input thread to return from WM_INITMENU. */ |
| 258 | complete_deferred_msg (FRAME_W32_WINDOW (f), WM_INITMENU, 0); |
| 259 | } |
| 260 | |
| 261 | /* This callback is called from the menu bar pulldown menu |
| 262 | when the user makes a selection. |
| 263 | Figure out what the user chose |
| 264 | and put the appropriate events into the keyboard buffer. */ |
| 265 | |
| 266 | void |
| 267 | menubar_selection_callback (FRAME_PTR f, void * client_data) |
| 268 | { |
| 269 | Lisp_Object prefix, entry; |
| 270 | Lisp_Object vector; |
| 271 | Lisp_Object *subprefix_stack; |
| 272 | int submenu_depth = 0; |
| 273 | int i; |
| 274 | |
| 275 | if (!f) |
| 276 | return; |
| 277 | entry = Qnil; |
| 278 | subprefix_stack = (Lisp_Object *) alloca (f->menu_bar_items_used * word_size); |
| 279 | vector = f->menu_bar_vector; |
| 280 | prefix = Qnil; |
| 281 | i = 0; |
| 282 | while (i < f->menu_bar_items_used) |
| 283 | { |
| 284 | if (EQ (AREF (vector, i), Qnil)) |
| 285 | { |
| 286 | subprefix_stack[submenu_depth++] = prefix; |
| 287 | prefix = entry; |
| 288 | i++; |
| 289 | } |
| 290 | else if (EQ (AREF (vector, i), Qlambda)) |
| 291 | { |
| 292 | prefix = subprefix_stack[--submenu_depth]; |
| 293 | i++; |
| 294 | } |
| 295 | else if (EQ (AREF (vector, i), Qt)) |
| 296 | { |
| 297 | prefix = AREF (vector, i + MENU_ITEMS_PANE_PREFIX); |
| 298 | i += MENU_ITEMS_PANE_LENGTH; |
| 299 | } |
| 300 | else |
| 301 | { |
| 302 | entry = AREF (vector, i + MENU_ITEMS_ITEM_VALUE); |
| 303 | /* The EMACS_INT cast avoids a warning. There's no problem |
| 304 | as long as pointers have enough bits to hold small integers. */ |
| 305 | if ((int) (EMACS_INT) client_data == i) |
| 306 | { |
| 307 | int j; |
| 308 | struct input_event buf; |
| 309 | Lisp_Object frame; |
| 310 | EVENT_INIT (buf); |
| 311 | |
| 312 | XSETFRAME (frame, f); |
| 313 | buf.kind = MENU_BAR_EVENT; |
| 314 | buf.frame_or_window = frame; |
| 315 | buf.arg = frame; |
| 316 | kbd_buffer_store_event (&buf); |
| 317 | |
| 318 | for (j = 0; j < submenu_depth; j++) |
| 319 | if (!NILP (subprefix_stack[j])) |
| 320 | { |
| 321 | buf.kind = MENU_BAR_EVENT; |
| 322 | buf.frame_or_window = frame; |
| 323 | buf.arg = subprefix_stack[j]; |
| 324 | kbd_buffer_store_event (&buf); |
| 325 | } |
| 326 | |
| 327 | if (!NILP (prefix)) |
| 328 | { |
| 329 | buf.kind = MENU_BAR_EVENT; |
| 330 | buf.frame_or_window = frame; |
| 331 | buf.arg = prefix; |
| 332 | kbd_buffer_store_event (&buf); |
| 333 | } |
| 334 | |
| 335 | buf.kind = MENU_BAR_EVENT; |
| 336 | buf.frame_or_window = frame; |
| 337 | buf.arg = entry; |
| 338 | /* Free memory used by owner-drawn and help-echo strings. */ |
| 339 | w32_free_menu_strings (FRAME_W32_WINDOW (f)); |
| 340 | kbd_buffer_store_event (&buf); |
| 341 | |
| 342 | f->output_data.w32->menubar_active = 0; |
| 343 | return; |
| 344 | } |
| 345 | i += MENU_ITEMS_ITEM_LENGTH; |
| 346 | } |
| 347 | } |
| 348 | /* Free memory used by owner-drawn and help-echo strings. */ |
| 349 | w32_free_menu_strings (FRAME_W32_WINDOW (f)); |
| 350 | f->output_data.w32->menubar_active = 0; |
| 351 | } |
| 352 | |
| 353 | \f |
| 354 | /* Set the contents of the menubar widgets of frame F. |
| 355 | The argument FIRST_TIME is currently ignored; |
| 356 | it is set the first time this is called, from initialize_frame_menubar. */ |
| 357 | |
| 358 | void |
| 359 | set_frame_menubar (FRAME_PTR f, bool first_time, bool deep_p) |
| 360 | { |
| 361 | HMENU menubar_widget = f->output_data.w32->menubar_widget; |
| 362 | Lisp_Object items; |
| 363 | widget_value *wv, *first_wv, *prev_wv = 0; |
| 364 | int i, last_i; |
| 365 | int *submenu_start, *submenu_end; |
| 366 | int *submenu_top_level_items, *submenu_n_panes; |
| 367 | |
| 368 | /* We must not change the menubar when actually in use. */ |
| 369 | if (f->output_data.w32->menubar_active) |
| 370 | return; |
| 371 | |
| 372 | XSETFRAME (Vmenu_updating_frame, f); |
| 373 | |
| 374 | if (! menubar_widget) |
| 375 | deep_p = 1; |
| 376 | else if (pending_menu_activation && !deep_p) |
| 377 | deep_p = 1; |
| 378 | |
| 379 | if (deep_p) |
| 380 | { |
| 381 | /* Make a widget-value tree representing the entire menu trees. */ |
| 382 | |
| 383 | struct buffer *prev = current_buffer; |
| 384 | Lisp_Object buffer; |
| 385 | ptrdiff_t specpdl_count = SPECPDL_INDEX (); |
| 386 | int previous_menu_items_used = f->menu_bar_items_used; |
| 387 | Lisp_Object *previous_items |
| 388 | = (Lisp_Object *) alloca (previous_menu_items_used |
| 389 | * word_size); |
| 390 | |
| 391 | /* If we are making a new widget, its contents are empty, |
| 392 | do always reinitialize them. */ |
| 393 | if (! menubar_widget) |
| 394 | previous_menu_items_used = 0; |
| 395 | |
| 396 | buffer = XWINDOW (FRAME_SELECTED_WINDOW (f))->buffer; |
| 397 | specbind (Qinhibit_quit, Qt); |
| 398 | /* Don't let the debugger step into this code |
| 399 | because it is not reentrant. */ |
| 400 | specbind (Qdebug_on_next_call, Qnil); |
| 401 | |
| 402 | record_unwind_save_match_data (); |
| 403 | |
| 404 | if (NILP (Voverriding_local_map_menu_flag)) |
| 405 | { |
| 406 | specbind (Qoverriding_terminal_local_map, Qnil); |
| 407 | specbind (Qoverriding_local_map, Qnil); |
| 408 | } |
| 409 | |
| 410 | set_buffer_internal_1 (XBUFFER (buffer)); |
| 411 | |
| 412 | /* Run the hooks. */ |
| 413 | safe_run_hooks (Qactivate_menubar_hook); |
| 414 | safe_run_hooks (Qmenu_bar_update_hook); |
| 415 | fset_menu_bar_items (f, menu_bar_items (FRAME_MENU_BAR_ITEMS (f))); |
| 416 | |
| 417 | items = FRAME_MENU_BAR_ITEMS (f); |
| 418 | |
| 419 | /* Save the frame's previous menu bar contents data. */ |
| 420 | if (previous_menu_items_used) |
| 421 | memcpy (previous_items, XVECTOR (f->menu_bar_vector)->contents, |
| 422 | previous_menu_items_used * word_size); |
| 423 | |
| 424 | /* Fill in menu_items with the current menu bar contents. |
| 425 | This can evaluate Lisp code. */ |
| 426 | save_menu_items (); |
| 427 | |
| 428 | menu_items = f->menu_bar_vector; |
| 429 | menu_items_allocated = VECTORP (menu_items) ? ASIZE (menu_items) : 0; |
| 430 | submenu_start = (int *) alloca (ASIZE (items) * sizeof (int)); |
| 431 | submenu_end = (int *) alloca (ASIZE (items) * sizeof (int)); |
| 432 | submenu_n_panes = (int *) alloca (ASIZE (items) * sizeof (int)); |
| 433 | submenu_top_level_items = (int *) alloca (ASIZE (items) * sizeof (int)); |
| 434 | init_menu_items (); |
| 435 | for (i = 0; i < ASIZE (items); i += 4) |
| 436 | { |
| 437 | Lisp_Object key, string, maps; |
| 438 | |
| 439 | last_i = i; |
| 440 | |
| 441 | key = AREF (items, i); |
| 442 | string = AREF (items, i + 1); |
| 443 | maps = AREF (items, i + 2); |
| 444 | if (NILP (string)) |
| 445 | break; |
| 446 | |
| 447 | submenu_start[i] = menu_items_used; |
| 448 | |
| 449 | menu_items_n_panes = 0; |
| 450 | submenu_top_level_items[i] |
| 451 | = parse_single_submenu (key, string, maps); |
| 452 | submenu_n_panes[i] = menu_items_n_panes; |
| 453 | |
| 454 | submenu_end[i] = menu_items_used; |
| 455 | } |
| 456 | |
| 457 | finish_menu_items (); |
| 458 | |
| 459 | /* Convert menu_items into widget_value trees |
| 460 | to display the menu. This cannot evaluate Lisp code. */ |
| 461 | |
| 462 | wv = xmalloc_widget_value (); |
| 463 | wv->name = "menubar"; |
| 464 | wv->value = 0; |
| 465 | wv->enabled = 1; |
| 466 | wv->button_type = BUTTON_TYPE_NONE; |
| 467 | wv->help = Qnil; |
| 468 | first_wv = wv; |
| 469 | |
| 470 | for (i = 0; i < last_i; i += 4) |
| 471 | { |
| 472 | menu_items_n_panes = submenu_n_panes[i]; |
| 473 | wv = digest_single_submenu (submenu_start[i], submenu_end[i], |
| 474 | submenu_top_level_items[i]); |
| 475 | if (prev_wv) |
| 476 | prev_wv->next = wv; |
| 477 | else |
| 478 | first_wv->contents = wv; |
| 479 | /* Don't set wv->name here; GC during the loop might relocate it. */ |
| 480 | wv->enabled = 1; |
| 481 | wv->button_type = BUTTON_TYPE_NONE; |
| 482 | prev_wv = wv; |
| 483 | } |
| 484 | |
| 485 | set_buffer_internal_1 (prev); |
| 486 | |
| 487 | /* If there has been no change in the Lisp-level contents |
| 488 | of the menu bar, skip redisplaying it. Just exit. */ |
| 489 | |
| 490 | for (i = 0; i < previous_menu_items_used; i++) |
| 491 | if (menu_items_used == i |
| 492 | || (!EQ (previous_items[i], AREF (menu_items, i)))) |
| 493 | break; |
| 494 | if (i == menu_items_used && i == previous_menu_items_used && i != 0) |
| 495 | { |
| 496 | free_menubar_widget_value_tree (first_wv); |
| 497 | discard_menu_items (); |
| 498 | unbind_to (specpdl_count, Qnil); |
| 499 | return; |
| 500 | } |
| 501 | |
| 502 | fset_menu_bar_vector (f, menu_items); |
| 503 | f->menu_bar_items_used = menu_items_used; |
| 504 | |
| 505 | /* This undoes save_menu_items. */ |
| 506 | unbind_to (specpdl_count, Qnil); |
| 507 | |
| 508 | /* Now GC cannot happen during the lifetime of the widget_value, |
| 509 | so it's safe to store data from a Lisp_String, as long as |
| 510 | local copies are made when the actual menu is created. |
| 511 | Windows takes care of this for normal string items, but |
| 512 | not for owner-drawn items or additional item-info. */ |
| 513 | wv = first_wv->contents; |
| 514 | for (i = 0; i < ASIZE (items); i += 4) |
| 515 | { |
| 516 | Lisp_Object string; |
| 517 | string = AREF (items, i + 1); |
| 518 | if (NILP (string)) |
| 519 | break; |
| 520 | wv->name = SSDATA (string); |
| 521 | update_submenu_strings (wv->contents); |
| 522 | wv = wv->next; |
| 523 | } |
| 524 | } |
| 525 | else |
| 526 | { |
| 527 | /* Make a widget-value tree containing |
| 528 | just the top level menu bar strings. */ |
| 529 | |
| 530 | wv = xmalloc_widget_value (); |
| 531 | wv->name = "menubar"; |
| 532 | wv->value = 0; |
| 533 | wv->enabled = 1; |
| 534 | wv->button_type = BUTTON_TYPE_NONE; |
| 535 | wv->help = Qnil; |
| 536 | first_wv = wv; |
| 537 | |
| 538 | items = FRAME_MENU_BAR_ITEMS (f); |
| 539 | for (i = 0; i < ASIZE (items); i += 4) |
| 540 | { |
| 541 | Lisp_Object string; |
| 542 | |
| 543 | string = AREF (items, i + 1); |
| 544 | if (NILP (string)) |
| 545 | break; |
| 546 | |
| 547 | wv = xmalloc_widget_value (); |
| 548 | wv->name = SSDATA (string); |
| 549 | wv->value = 0; |
| 550 | wv->enabled = 1; |
| 551 | wv->button_type = BUTTON_TYPE_NONE; |
| 552 | wv->help = Qnil; |
| 553 | /* This prevents lwlib from assuming this |
| 554 | menu item is really supposed to be empty. */ |
| 555 | /* The EMACS_INT cast avoids a warning. |
| 556 | This value just has to be different from small integers. */ |
| 557 | wv->call_data = (void *) (EMACS_INT) (-1); |
| 558 | |
| 559 | if (prev_wv) |
| 560 | prev_wv->next = wv; |
| 561 | else |
| 562 | first_wv->contents = wv; |
| 563 | prev_wv = wv; |
| 564 | } |
| 565 | |
| 566 | /* Forget what we thought we knew about what is in the |
| 567 | detailed contents of the menu bar menus. |
| 568 | Changing the top level always destroys the contents. */ |
| 569 | f->menu_bar_items_used = 0; |
| 570 | } |
| 571 | |
| 572 | /* Create or update the menu bar widget. */ |
| 573 | |
| 574 | block_input (); |
| 575 | |
| 576 | if (menubar_widget) |
| 577 | { |
| 578 | /* Empty current menubar, rather than creating a fresh one. */ |
| 579 | while (DeleteMenu (menubar_widget, 0, MF_BYPOSITION)) |
| 580 | ; |
| 581 | } |
| 582 | else |
| 583 | { |
| 584 | menubar_widget = CreateMenu (); |
| 585 | } |
| 586 | fill_in_menu (menubar_widget, first_wv->contents); |
| 587 | |
| 588 | free_menubar_widget_value_tree (first_wv); |
| 589 | |
| 590 | { |
| 591 | HMENU old_widget = f->output_data.w32->menubar_widget; |
| 592 | |
| 593 | f->output_data.w32->menubar_widget = menubar_widget; |
| 594 | SetMenu (FRAME_W32_WINDOW (f), f->output_data.w32->menubar_widget); |
| 595 | /* Causes flicker when menu bar is updated |
| 596 | DrawMenuBar (FRAME_W32_WINDOW (f)); */ |
| 597 | |
| 598 | /* Force the window size to be recomputed so that the frame's text |
| 599 | area remains the same, if menubar has just been created. */ |
| 600 | if (old_widget == NULL) |
| 601 | x_set_window_size (f, 0, FRAME_COLS (f), FRAME_LINES (f)); |
| 602 | } |
| 603 | |
| 604 | unblock_input (); |
| 605 | } |
| 606 | |
| 607 | /* Called from Fx_create_frame to create the initial menubar of a frame |
| 608 | before it is mapped, so that the window is mapped with the menubar already |
| 609 | there instead of us tacking it on later and thrashing the window after it |
| 610 | is visible. */ |
| 611 | |
| 612 | void |
| 613 | initialize_frame_menubar (FRAME_PTR f) |
| 614 | { |
| 615 | /* This function is called before the first chance to redisplay |
| 616 | the frame. It has to be, so the frame will have the right size. */ |
| 617 | fset_menu_bar_items (f, menu_bar_items (FRAME_MENU_BAR_ITEMS (f))); |
| 618 | set_frame_menubar (f, 1, 1); |
| 619 | } |
| 620 | |
| 621 | /* Get rid of the menu bar of frame F, and free its storage. |
| 622 | This is used when deleting a frame, and when turning off the menu bar. */ |
| 623 | |
| 624 | void |
| 625 | free_frame_menubar (FRAME_PTR f) |
| 626 | { |
| 627 | block_input (); |
| 628 | |
| 629 | { |
| 630 | HMENU old = GetMenu (FRAME_W32_WINDOW (f)); |
| 631 | SetMenu (FRAME_W32_WINDOW (f), NULL); |
| 632 | f->output_data.w32->menubar_widget = NULL; |
| 633 | DestroyMenu (old); |
| 634 | } |
| 635 | |
| 636 | unblock_input (); |
| 637 | } |
| 638 | |
| 639 | \f |
| 640 | /* w32_menu_show actually displays a menu using the panes and items in |
| 641 | menu_items and returns the value selected from it; we assume input |
| 642 | is blocked by the caller. */ |
| 643 | |
| 644 | /* F is the frame the menu is for. |
| 645 | X and Y are the frame-relative specified position, |
| 646 | relative to the inside upper left corner of the frame F. |
| 647 | FOR_CLICK is nonzero if this menu was invoked for a mouse click. |
| 648 | KEYMAPS is 1 if this menu was specified with keymaps; |
| 649 | in that case, we return a list containing the chosen item's value |
| 650 | and perhaps also the pane's prefix. |
| 651 | TITLE is the specified menu title. |
| 652 | ERROR is a place to store an error message string in case of failure. |
| 653 | (We return nil on failure, but the value doesn't actually matter.) */ |
| 654 | |
| 655 | Lisp_Object |
| 656 | w32_menu_show (FRAME_PTR f, int x, int y, int for_click, int keymaps, |
| 657 | Lisp_Object title, const char **error) |
| 658 | { |
| 659 | int i; |
| 660 | int menu_item_selection; |
| 661 | HMENU menu; |
| 662 | POINT pos; |
| 663 | widget_value *wv, *save_wv = 0, *first_wv = 0, *prev_wv = 0; |
| 664 | widget_value **submenu_stack |
| 665 | = (widget_value **) alloca (menu_items_used * sizeof (widget_value *)); |
| 666 | Lisp_Object *subprefix_stack |
| 667 | = (Lisp_Object *) alloca (menu_items_used * word_size); |
| 668 | int submenu_depth = 0; |
| 669 | int first_pane; |
| 670 | |
| 671 | *error = NULL; |
| 672 | |
| 673 | if (menu_items_n_panes == 0) |
| 674 | return Qnil; |
| 675 | |
| 676 | if (menu_items_used <= MENU_ITEMS_PANE_LENGTH) |
| 677 | { |
| 678 | *error = "Empty menu"; |
| 679 | return Qnil; |
| 680 | } |
| 681 | |
| 682 | /* Create a tree of widget_value objects |
| 683 | representing the panes and their items. */ |
| 684 | wv = xmalloc_widget_value (); |
| 685 | wv->name = "menu"; |
| 686 | wv->value = 0; |
| 687 | wv->enabled = 1; |
| 688 | wv->button_type = BUTTON_TYPE_NONE; |
| 689 | wv->help = Qnil; |
| 690 | first_wv = wv; |
| 691 | first_pane = 1; |
| 692 | |
| 693 | /* Loop over all panes and items, filling in the tree. */ |
| 694 | i = 0; |
| 695 | while (i < menu_items_used) |
| 696 | { |
| 697 | if (EQ (AREF (menu_items, i), Qnil)) |
| 698 | { |
| 699 | submenu_stack[submenu_depth++] = save_wv; |
| 700 | save_wv = prev_wv; |
| 701 | prev_wv = 0; |
| 702 | first_pane = 1; |
| 703 | i++; |
| 704 | } |
| 705 | else if (EQ (AREF (menu_items, i), Qlambda)) |
| 706 | { |
| 707 | prev_wv = save_wv; |
| 708 | save_wv = submenu_stack[--submenu_depth]; |
| 709 | first_pane = 0; |
| 710 | i++; |
| 711 | } |
| 712 | else if (EQ (AREF (menu_items, i), Qt) |
| 713 | && submenu_depth != 0) |
| 714 | i += MENU_ITEMS_PANE_LENGTH; |
| 715 | /* Ignore a nil in the item list. |
| 716 | It's meaningful only for dialog boxes. */ |
| 717 | else if (EQ (AREF (menu_items, i), Qquote)) |
| 718 | i += 1; |
| 719 | else if (EQ (AREF (menu_items, i), Qt)) |
| 720 | { |
| 721 | /* Create a new pane. */ |
| 722 | Lisp_Object pane_name, prefix; |
| 723 | char *pane_string; |
| 724 | pane_name = AREF (menu_items, i + MENU_ITEMS_PANE_NAME); |
| 725 | prefix = AREF (menu_items, i + MENU_ITEMS_PANE_PREFIX); |
| 726 | |
| 727 | if (STRINGP (pane_name)) |
| 728 | { |
| 729 | if (unicode_append_menu) |
| 730 | pane_name = ENCODE_UTF_8 (pane_name); |
| 731 | else if (STRING_MULTIBYTE (pane_name)) |
| 732 | pane_name = ENCODE_SYSTEM (pane_name); |
| 733 | |
| 734 | ASET (menu_items, i + MENU_ITEMS_PANE_NAME, pane_name); |
| 735 | } |
| 736 | |
| 737 | pane_string = (NILP (pane_name) |
| 738 | ? "" : SSDATA (pane_name)); |
| 739 | /* If there is just one top-level pane, put all its items directly |
| 740 | under the top-level menu. */ |
| 741 | if (menu_items_n_panes == 1) |
| 742 | pane_string = ""; |
| 743 | |
| 744 | /* If the pane has a meaningful name, |
| 745 | make the pane a top-level menu item |
| 746 | with its items as a submenu beneath it. */ |
| 747 | if (!keymaps && strcmp (pane_string, "")) |
| 748 | { |
| 749 | wv = xmalloc_widget_value (); |
| 750 | if (save_wv) |
| 751 | save_wv->next = wv; |
| 752 | else |
| 753 | first_wv->contents = wv; |
| 754 | wv->name = pane_string; |
| 755 | if (keymaps && !NILP (prefix)) |
| 756 | wv->name++; |
| 757 | wv->value = 0; |
| 758 | wv->enabled = 1; |
| 759 | wv->button_type = BUTTON_TYPE_NONE; |
| 760 | wv->help = Qnil; |
| 761 | save_wv = wv; |
| 762 | prev_wv = 0; |
| 763 | } |
| 764 | else if (first_pane) |
| 765 | { |
| 766 | save_wv = wv; |
| 767 | prev_wv = 0; |
| 768 | } |
| 769 | first_pane = 0; |
| 770 | i += MENU_ITEMS_PANE_LENGTH; |
| 771 | } |
| 772 | else |
| 773 | { |
| 774 | /* Create a new item within current pane. */ |
| 775 | Lisp_Object item_name, enable, descrip, def, type, selected, help; |
| 776 | |
| 777 | item_name = AREF (menu_items, i + MENU_ITEMS_ITEM_NAME); |
| 778 | enable = AREF (menu_items, i + MENU_ITEMS_ITEM_ENABLE); |
| 779 | descrip = AREF (menu_items, i + MENU_ITEMS_ITEM_EQUIV_KEY); |
| 780 | def = AREF (menu_items, i + MENU_ITEMS_ITEM_DEFINITION); |
| 781 | type = AREF (menu_items, i + MENU_ITEMS_ITEM_TYPE); |
| 782 | selected = AREF (menu_items, i + MENU_ITEMS_ITEM_SELECTED); |
| 783 | help = AREF (menu_items, i + MENU_ITEMS_ITEM_HELP); |
| 784 | |
| 785 | if (STRINGP (item_name)) |
| 786 | { |
| 787 | if (unicode_append_menu) |
| 788 | item_name = ENCODE_UTF_8 (item_name); |
| 789 | else if (STRING_MULTIBYTE (item_name)) |
| 790 | item_name = ENCODE_SYSTEM (item_name); |
| 791 | |
| 792 | ASET (menu_items, i + MENU_ITEMS_ITEM_NAME, item_name); |
| 793 | } |
| 794 | |
| 795 | if (STRINGP (descrip) && STRING_MULTIBYTE (descrip)) |
| 796 | { |
| 797 | descrip = ENCODE_SYSTEM (descrip); |
| 798 | ASET (menu_items, i + MENU_ITEMS_ITEM_EQUIV_KEY, descrip); |
| 799 | } |
| 800 | |
| 801 | wv = xmalloc_widget_value (); |
| 802 | if (prev_wv) |
| 803 | prev_wv->next = wv; |
| 804 | else |
| 805 | save_wv->contents = wv; |
| 806 | wv->name = SSDATA (item_name); |
| 807 | if (!NILP (descrip)) |
| 808 | wv->key = SSDATA (descrip); |
| 809 | wv->value = 0; |
| 810 | /* Use the contents index as call_data, since we are |
| 811 | restricted to 16-bits. */ |
| 812 | wv->call_data = !NILP (def) ? (void *) (EMACS_INT) i : 0; |
| 813 | wv->enabled = !NILP (enable); |
| 814 | |
| 815 | if (NILP (type)) |
| 816 | wv->button_type = BUTTON_TYPE_NONE; |
| 817 | else if (EQ (type, QCtoggle)) |
| 818 | wv->button_type = BUTTON_TYPE_TOGGLE; |
| 819 | else if (EQ (type, QCradio)) |
| 820 | wv->button_type = BUTTON_TYPE_RADIO; |
| 821 | else |
| 822 | emacs_abort (); |
| 823 | |
| 824 | wv->selected = !NILP (selected); |
| 825 | |
| 826 | if (!STRINGP (help)) |
| 827 | help = Qnil; |
| 828 | |
| 829 | wv->help = help; |
| 830 | |
| 831 | prev_wv = wv; |
| 832 | |
| 833 | i += MENU_ITEMS_ITEM_LENGTH; |
| 834 | } |
| 835 | } |
| 836 | |
| 837 | /* Deal with the title, if it is non-nil. */ |
| 838 | if (!NILP (title)) |
| 839 | { |
| 840 | widget_value *wv_title = xmalloc_widget_value (); |
| 841 | widget_value *wv_sep = xmalloc_widget_value (); |
| 842 | |
| 843 | /* Maybe replace this separator with a bitmap or owner-draw item |
| 844 | so that it looks better. Having two separators looks odd. */ |
| 845 | wv_sep->name = "--"; |
| 846 | wv_sep->next = first_wv->contents; |
| 847 | wv_sep->help = Qnil; |
| 848 | |
| 849 | if (unicode_append_menu) |
| 850 | title = ENCODE_UTF_8 (title); |
| 851 | else if (STRING_MULTIBYTE (title)) |
| 852 | title = ENCODE_SYSTEM (title); |
| 853 | |
| 854 | wv_title->name = SSDATA (title); |
| 855 | wv_title->enabled = TRUE; |
| 856 | wv_title->title = TRUE; |
| 857 | wv_title->button_type = BUTTON_TYPE_NONE; |
| 858 | wv_title->help = Qnil; |
| 859 | wv_title->next = wv_sep; |
| 860 | first_wv->contents = wv_title; |
| 861 | } |
| 862 | |
| 863 | /* No selection has been chosen yet. */ |
| 864 | menu_item_selection = 0; |
| 865 | |
| 866 | /* Actually create the menu. */ |
| 867 | current_popup_menu = menu = CreatePopupMenu (); |
| 868 | fill_in_menu (menu, first_wv->contents); |
| 869 | |
| 870 | /* Adjust coordinates to be root-window-relative. */ |
| 871 | pos.x = x; |
| 872 | pos.y = y; |
| 873 | ClientToScreen (FRAME_W32_WINDOW (f), &pos); |
| 874 | |
| 875 | /* Display the menu. */ |
| 876 | menu_item_selection = SendMessage (FRAME_W32_WINDOW (f), |
| 877 | WM_EMACS_TRACKPOPUPMENU, |
| 878 | (WPARAM)menu, (LPARAM)&pos); |
| 879 | |
| 880 | /* Clean up extraneous mouse events which might have been generated |
| 881 | during the call. */ |
| 882 | discard_mouse_events (); |
| 883 | FRAME_X_DISPLAY_INFO (f)->grabbed = 0; |
| 884 | |
| 885 | /* Free the widget_value objects we used to specify the contents. */ |
| 886 | free_menubar_widget_value_tree (first_wv); |
| 887 | |
| 888 | DestroyMenu (menu); |
| 889 | |
| 890 | /* Free the owner-drawn and help-echo menu strings. */ |
| 891 | w32_free_menu_strings (FRAME_W32_WINDOW (f)); |
| 892 | f->output_data.w32->menubar_active = 0; |
| 893 | |
| 894 | /* Find the selected item, and its pane, to return |
| 895 | the proper value. */ |
| 896 | if (menu_item_selection != 0) |
| 897 | { |
| 898 | Lisp_Object prefix, entry; |
| 899 | |
| 900 | prefix = entry = Qnil; |
| 901 | i = 0; |
| 902 | while (i < menu_items_used) |
| 903 | { |
| 904 | if (EQ (AREF (menu_items, i), Qnil)) |
| 905 | { |
| 906 | subprefix_stack[submenu_depth++] = prefix; |
| 907 | prefix = entry; |
| 908 | i++; |
| 909 | } |
| 910 | else if (EQ (AREF (menu_items, i), Qlambda)) |
| 911 | { |
| 912 | prefix = subprefix_stack[--submenu_depth]; |
| 913 | i++; |
| 914 | } |
| 915 | else if (EQ (AREF (menu_items, i), Qt)) |
| 916 | { |
| 917 | prefix = AREF (menu_items, i + MENU_ITEMS_PANE_PREFIX); |
| 918 | i += MENU_ITEMS_PANE_LENGTH; |
| 919 | } |
| 920 | /* Ignore a nil in the item list. |
| 921 | It's meaningful only for dialog boxes. */ |
| 922 | else if (EQ (AREF (menu_items, i), Qquote)) |
| 923 | i += 1; |
| 924 | else |
| 925 | { |
| 926 | entry = AREF (menu_items, i + MENU_ITEMS_ITEM_VALUE); |
| 927 | if (menu_item_selection == i) |
| 928 | { |
| 929 | if (keymaps != 0) |
| 930 | { |
| 931 | int j; |
| 932 | |
| 933 | entry = Fcons (entry, Qnil); |
| 934 | if (!NILP (prefix)) |
| 935 | entry = Fcons (prefix, entry); |
| 936 | for (j = submenu_depth - 1; j >= 0; j--) |
| 937 | if (!NILP (subprefix_stack[j])) |
| 938 | entry = Fcons (subprefix_stack[j], entry); |
| 939 | } |
| 940 | return entry; |
| 941 | } |
| 942 | i += MENU_ITEMS_ITEM_LENGTH; |
| 943 | } |
| 944 | } |
| 945 | } |
| 946 | else if (!for_click) |
| 947 | /* Make "Cancel" equivalent to C-g. */ |
| 948 | Fsignal (Qquit, Qnil); |
| 949 | |
| 950 | return Qnil; |
| 951 | } |
| 952 | \f |
| 953 | |
| 954 | #ifdef HAVE_DIALOGS |
| 955 | /* TODO: On Windows, there are two ways of defining a dialog. |
| 956 | |
| 957 | 1. Create a predefined dialog resource and include it in nt/emacs.rc. |
| 958 | Using this method, we could then set the titles and make unneeded |
| 959 | buttons invisible before displaying the dialog. Everything would |
| 960 | be a fixed size though, so there is a risk that text does not |
| 961 | fit on a button. |
| 962 | 2. Create the dialog template in memory on the fly. This allows us |
| 963 | to size the dialog and buttons dynamically, probably giving more |
| 964 | natural looking results for dialogs with few buttons, and eliminating |
| 965 | the problem of text overflowing the buttons. But the API for this is |
| 966 | quite complex - structures have to be allocated in particular ways, |
| 967 | text content is tacked onto the end of structures in variable length |
| 968 | arrays with further structures tacked on after these, there are |
| 969 | certain alignment requirements for all this, and we have to |
| 970 | measure all the text and convert to "dialog coordinates" to figure |
| 971 | out how big to make everything. |
| 972 | |
| 973 | For now, we'll just stick with menus for dialogs that are more |
| 974 | complicated than simple yes/no type questions for which we can use |
| 975 | the MessageBox function. |
| 976 | */ |
| 977 | |
| 978 | static char * button_names [] = { |
| 979 | "button1", "button2", "button3", "button4", "button5", |
| 980 | "button6", "button7", "button8", "button9", "button10" }; |
| 981 | |
| 982 | static Lisp_Object |
| 983 | w32_dialog_show (FRAME_PTR f, int keymaps, |
| 984 | Lisp_Object title, Lisp_Object header, |
| 985 | char **error) |
| 986 | { |
| 987 | int i, nb_buttons = 0; |
| 988 | char dialog_name[6]; |
| 989 | int menu_item_selection; |
| 990 | |
| 991 | widget_value *wv, *first_wv = 0, *prev_wv = 0; |
| 992 | |
| 993 | /* Number of elements seen so far, before boundary. */ |
| 994 | int left_count = 0; |
| 995 | /* 1 means we've seen the boundary between left-hand elts and right-hand. */ |
| 996 | int boundary_seen = 0; |
| 997 | |
| 998 | *error = NULL; |
| 999 | |
| 1000 | if (menu_items_n_panes > 1) |
| 1001 | { |
| 1002 | *error = "Multiple panes in dialog box"; |
| 1003 | return Qnil; |
| 1004 | } |
| 1005 | |
| 1006 | /* Create a tree of widget_value objects |
| 1007 | representing the text label and buttons. */ |
| 1008 | { |
| 1009 | Lisp_Object pane_name, prefix; |
| 1010 | char *pane_string; |
| 1011 | pane_name = AREF (menu_items, MENU_ITEMS_PANE_NAME); |
| 1012 | prefix = AREF (menu_items, MENU_ITEMS_PANE_PREFIX); |
| 1013 | pane_string = (NILP (pane_name) |
| 1014 | ? "" : SSDATA (pane_name)); |
| 1015 | prev_wv = xmalloc_widget_value (); |
| 1016 | prev_wv->value = pane_string; |
| 1017 | if (keymaps && !NILP (prefix)) |
| 1018 | prev_wv->name++; |
| 1019 | prev_wv->enabled = 1; |
| 1020 | prev_wv->name = "message"; |
| 1021 | prev_wv->help = Qnil; |
| 1022 | first_wv = prev_wv; |
| 1023 | |
| 1024 | /* Loop over all panes and items, filling in the tree. */ |
| 1025 | i = MENU_ITEMS_PANE_LENGTH; |
| 1026 | while (i < menu_items_used) |
| 1027 | { |
| 1028 | |
| 1029 | /* Create a new item within current pane. */ |
| 1030 | Lisp_Object item_name, enable, descrip, help; |
| 1031 | |
| 1032 | item_name = AREF (menu_items, i + MENU_ITEMS_ITEM_NAME); |
| 1033 | enable = AREF (menu_items, i + MENU_ITEMS_ITEM_ENABLE); |
| 1034 | descrip = AREF (menu_items, i + MENU_ITEMS_ITEM_EQUIV_KEY); |
| 1035 | help = AREF (menu_items, i + MENU_ITEMS_ITEM_HELP); |
| 1036 | |
| 1037 | if (NILP (item_name)) |
| 1038 | { |
| 1039 | free_menubar_widget_value_tree (first_wv); |
| 1040 | *error = "Submenu in dialog items"; |
| 1041 | return Qnil; |
| 1042 | } |
| 1043 | if (EQ (item_name, Qquote)) |
| 1044 | { |
| 1045 | /* This is the boundary between left-side elts |
| 1046 | and right-side elts. Stop incrementing right_count. */ |
| 1047 | boundary_seen = 1; |
| 1048 | i++; |
| 1049 | continue; |
| 1050 | } |
| 1051 | if (nb_buttons >= 9) |
| 1052 | { |
| 1053 | free_menubar_widget_value_tree (first_wv); |
| 1054 | *error = "Too many dialog items"; |
| 1055 | return Qnil; |
| 1056 | } |
| 1057 | |
| 1058 | wv = xmalloc_widget_value (); |
| 1059 | prev_wv->next = wv; |
| 1060 | wv->name = (char *) button_names[nb_buttons]; |
| 1061 | if (!NILP (descrip)) |
| 1062 | wv->key = SSDATA (descrip); |
| 1063 | wv->value = SSDATA (item_name); |
| 1064 | wv->call_data = aref_addr (menu_items, i); |
| 1065 | wv->enabled = !NILP (enable); |
| 1066 | wv->help = Qnil; |
| 1067 | prev_wv = wv; |
| 1068 | |
| 1069 | if (! boundary_seen) |
| 1070 | left_count++; |
| 1071 | |
| 1072 | nb_buttons++; |
| 1073 | i += MENU_ITEMS_ITEM_LENGTH; |
| 1074 | } |
| 1075 | |
| 1076 | /* If the boundary was not specified, |
| 1077 | by default put half on the left and half on the right. */ |
| 1078 | if (! boundary_seen) |
| 1079 | left_count = nb_buttons - nb_buttons / 2; |
| 1080 | |
| 1081 | wv = xmalloc_widget_value (); |
| 1082 | wv->name = dialog_name; |
| 1083 | wv->help = Qnil; |
| 1084 | |
| 1085 | /* Frame title: 'Q' = Question, 'I' = Information. |
| 1086 | Can also have 'E' = Error if, one day, we want |
| 1087 | a popup for errors. */ |
| 1088 | if (NILP (header)) |
| 1089 | dialog_name[0] = 'Q'; |
| 1090 | else |
| 1091 | dialog_name[0] = 'I'; |
| 1092 | |
| 1093 | /* Dialog boxes use a really stupid name encoding |
| 1094 | which specifies how many buttons to use |
| 1095 | and how many buttons are on the right. */ |
| 1096 | dialog_name[1] = '0' + nb_buttons; |
| 1097 | dialog_name[2] = 'B'; |
| 1098 | dialog_name[3] = 'R'; |
| 1099 | /* Number of buttons to put on the right. */ |
| 1100 | dialog_name[4] = '0' + nb_buttons - left_count; |
| 1101 | dialog_name[5] = 0; |
| 1102 | wv->contents = first_wv; |
| 1103 | first_wv = wv; |
| 1104 | } |
| 1105 | |
| 1106 | /* Actually create the dialog. */ |
| 1107 | dialog_id = widget_id_tick++; |
| 1108 | menu = lw_create_widget (first_wv->name, "dialog", dialog_id, first_wv, |
| 1109 | f->output_data.w32->widget, 1, 0, |
| 1110 | dialog_selection_callback, 0); |
| 1111 | lw_modify_all_widgets (dialog_id, first_wv->contents, TRUE); |
| 1112 | |
| 1113 | /* Free the widget_value objects we used to specify the contents. */ |
| 1114 | free_menubar_widget_value_tree (first_wv); |
| 1115 | |
| 1116 | /* No selection has been chosen yet. */ |
| 1117 | menu_item_selection = 0; |
| 1118 | |
| 1119 | /* Display the menu. */ |
| 1120 | lw_pop_up_all_widgets (dialog_id); |
| 1121 | |
| 1122 | /* Process events that apply to the menu. */ |
| 1123 | popup_get_selection ((XEvent *) 0, FRAME_X_DISPLAY_INFO (f), dialog_id); |
| 1124 | |
| 1125 | lw_destroy_all_widgets (dialog_id); |
| 1126 | |
| 1127 | /* Find the selected item, and its pane, to return |
| 1128 | the proper value. */ |
| 1129 | if (menu_item_selection != 0) |
| 1130 | { |
| 1131 | Lisp_Object prefix; |
| 1132 | |
| 1133 | prefix = Qnil; |
| 1134 | i = 0; |
| 1135 | while (i < menu_items_used) |
| 1136 | { |
| 1137 | Lisp_Object entry; |
| 1138 | |
| 1139 | if (EQ (AREF (menu_items, i), Qt)) |
| 1140 | { |
| 1141 | prefix = AREF (menu_items, i + MENU_ITEMS_PANE_PREFIX); |
| 1142 | i += MENU_ITEMS_PANE_LENGTH; |
| 1143 | } |
| 1144 | else |
| 1145 | { |
| 1146 | entry = AREF (menu_items, i + MENU_ITEMS_ITEM_VALUE); |
| 1147 | if (menu_item_selection == i) |
| 1148 | { |
| 1149 | if (keymaps != 0) |
| 1150 | { |
| 1151 | entry = Fcons (entry, Qnil); |
| 1152 | if (!NILP (prefix)) |
| 1153 | entry = Fcons (prefix, entry); |
| 1154 | } |
| 1155 | return entry; |
| 1156 | } |
| 1157 | i += MENU_ITEMS_ITEM_LENGTH; |
| 1158 | } |
| 1159 | } |
| 1160 | } |
| 1161 | else |
| 1162 | /* Make "Cancel" equivalent to C-g. */ |
| 1163 | Fsignal (Qquit, Qnil); |
| 1164 | |
| 1165 | return Qnil; |
| 1166 | } |
| 1167 | #else /* !HAVE_DIALOGS */ |
| 1168 | |
| 1169 | /* Currently we only handle Yes No dialogs (y-or-n-p and yes-or-no-p) as |
| 1170 | simple dialogs. We could handle a few more, but I'm not aware of |
| 1171 | anywhere in Emacs that uses the other specific dialog choices that |
| 1172 | MessageBox provides. */ |
| 1173 | |
| 1174 | static int |
| 1175 | is_simple_dialog (Lisp_Object contents) |
| 1176 | { |
| 1177 | Lisp_Object options; |
| 1178 | Lisp_Object name, yes, no, other; |
| 1179 | |
| 1180 | if (!CONSP (contents)) |
| 1181 | return 0; |
| 1182 | options = XCDR (contents); |
| 1183 | |
| 1184 | yes = build_string ("Yes"); |
| 1185 | no = build_string ("No"); |
| 1186 | |
| 1187 | if (!CONSP (options)) |
| 1188 | return 0; |
| 1189 | |
| 1190 | name = XCAR (options); |
| 1191 | if (!CONSP (name)) |
| 1192 | return 0; |
| 1193 | name = XCAR (name); |
| 1194 | |
| 1195 | if (!NILP (Fstring_equal (name, yes))) |
| 1196 | other = no; |
| 1197 | else if (!NILP (Fstring_equal (name, no))) |
| 1198 | other = yes; |
| 1199 | else |
| 1200 | return 0; |
| 1201 | |
| 1202 | options = XCDR (options); |
| 1203 | if (!CONSP (options)) |
| 1204 | return 0; |
| 1205 | |
| 1206 | name = XCAR (options); |
| 1207 | if (!CONSP (name)) |
| 1208 | return 0; |
| 1209 | name = XCAR (name); |
| 1210 | if (NILP (Fstring_equal (name, other))) |
| 1211 | return 0; |
| 1212 | |
| 1213 | /* Check there are no more options. */ |
| 1214 | options = XCDR (options); |
| 1215 | return !(CONSP (options)); |
| 1216 | } |
| 1217 | |
| 1218 | static Lisp_Object |
| 1219 | simple_dialog_show (FRAME_PTR f, Lisp_Object contents, Lisp_Object header) |
| 1220 | { |
| 1221 | int answer; |
| 1222 | UINT type; |
| 1223 | Lisp_Object lispy_answer = Qnil, temp = XCAR (contents); |
| 1224 | |
| 1225 | type = MB_YESNO; |
| 1226 | |
| 1227 | /* Since we only handle Yes/No dialogs, and we already checked |
| 1228 | is_simple_dialog, we don't need to worry about checking contents |
| 1229 | to see what type of dialog to use. */ |
| 1230 | |
| 1231 | /* Use Unicode if possible, so any language can be displayed. */ |
| 1232 | if (unicode_message_box) |
| 1233 | { |
| 1234 | WCHAR *text, *title; |
| 1235 | USE_SAFE_ALLOCA; |
| 1236 | |
| 1237 | if (STRINGP (temp)) |
| 1238 | { |
| 1239 | char *utf8_text = SDATA (ENCODE_UTF_8 (temp)); |
| 1240 | /* Be pessimistic about the number of characters needed. |
| 1241 | Remember characters outside the BMP will take more than |
| 1242 | one utf16 word, so we cannot simply use the character |
| 1243 | length of temp. */ |
| 1244 | int utf8_len = strlen (utf8_text); |
| 1245 | text = SAFE_ALLOCA ((utf8_len + 1) * sizeof (WCHAR)); |
| 1246 | utf8to16 (utf8_text, utf8_len, text); |
| 1247 | } |
| 1248 | else |
| 1249 | { |
| 1250 | text = L""; |
| 1251 | } |
| 1252 | |
| 1253 | if (NILP (header)) |
| 1254 | { |
| 1255 | title = L"Question"; |
| 1256 | type |= MB_ICONQUESTION; |
| 1257 | } |
| 1258 | else |
| 1259 | { |
| 1260 | title = L"Information"; |
| 1261 | type |= MB_ICONINFORMATION; |
| 1262 | } |
| 1263 | |
| 1264 | answer = unicode_message_box (FRAME_W32_WINDOW (f), text, title, type); |
| 1265 | SAFE_FREE (); |
| 1266 | } |
| 1267 | else |
| 1268 | { |
| 1269 | char *text, *title; |
| 1270 | |
| 1271 | /* Fall back on ANSI message box, but at least use system |
| 1272 | encoding so questions representable by the system codepage |
| 1273 | are encoded properly. */ |
| 1274 | if (STRINGP (temp)) |
| 1275 | text = SDATA (ENCODE_SYSTEM (temp)); |
| 1276 | else |
| 1277 | text = ""; |
| 1278 | |
| 1279 | if (NILP (header)) |
| 1280 | { |
| 1281 | title = "Question"; |
| 1282 | type |= MB_ICONQUESTION; |
| 1283 | } |
| 1284 | else |
| 1285 | { |
| 1286 | title = "Information"; |
| 1287 | type |= MB_ICONINFORMATION; |
| 1288 | } |
| 1289 | |
| 1290 | answer = MessageBox (FRAME_W32_WINDOW (f), text, title, type); |
| 1291 | } |
| 1292 | |
| 1293 | if (answer == IDYES) |
| 1294 | lispy_answer = build_string ("Yes"); |
| 1295 | else if (answer == IDNO) |
| 1296 | lispy_answer = build_string ("No"); |
| 1297 | else |
| 1298 | Fsignal (Qquit, Qnil); |
| 1299 | |
| 1300 | for (temp = XCDR (contents); CONSP (temp); temp = XCDR (temp)) |
| 1301 | { |
| 1302 | Lisp_Object item, name, value; |
| 1303 | item = XCAR (temp); |
| 1304 | if (CONSP (item)) |
| 1305 | { |
| 1306 | name = XCAR (item); |
| 1307 | value = XCDR (item); |
| 1308 | } |
| 1309 | else |
| 1310 | { |
| 1311 | name = item; |
| 1312 | value = Qnil; |
| 1313 | } |
| 1314 | |
| 1315 | if (!NILP (Fstring_equal (name, lispy_answer))) |
| 1316 | { |
| 1317 | return value; |
| 1318 | } |
| 1319 | } |
| 1320 | Fsignal (Qquit, Qnil); |
| 1321 | return Qnil; |
| 1322 | } |
| 1323 | #endif /* !HAVE_DIALOGS */ |
| 1324 | \f |
| 1325 | |
| 1326 | /* UTF8: 0xxxxxxx, 110xxxxx 10xxxxxx, 1110xxxx, 10xxxxxx, 10xxxxxx */ |
| 1327 | static void |
| 1328 | utf8to16 (unsigned char * src, int len, WCHAR * dest) |
| 1329 | { |
| 1330 | while (len > 0) |
| 1331 | { |
| 1332 | if (*src < 0x80) |
| 1333 | { |
| 1334 | *dest = (WCHAR) *src; |
| 1335 | dest++; src++; len--; |
| 1336 | } |
| 1337 | /* Since we might get >3 byte sequences which we don't handle, ignore the extra parts. */ |
| 1338 | else if (*src < 0xC0) |
| 1339 | { |
| 1340 | src++; len--; |
| 1341 | } |
| 1342 | /* 2 char UTF-8 sequence. */ |
| 1343 | else if (*src < 0xE0) |
| 1344 | { |
| 1345 | *dest = (WCHAR) (((*src & 0x1f) << 6) |
| 1346 | | (*(src + 1) & 0x3f)); |
| 1347 | src += 2; len -= 2; dest++; |
| 1348 | } |
| 1349 | else if (*src < 0xF0) |
| 1350 | { |
| 1351 | *dest = (WCHAR) (((*src & 0x0f) << 12) |
| 1352 | | ((*(src + 1) & 0x3f) << 6) |
| 1353 | | (*(src + 2) & 0x3f)); |
| 1354 | src += 3; len -= 3; dest++; |
| 1355 | } |
| 1356 | else /* Not encodable. Insert Unicode Substitution char. */ |
| 1357 | { |
| 1358 | *dest = (WCHAR) 0xfffd; |
| 1359 | src++; len--; dest++; |
| 1360 | } |
| 1361 | } |
| 1362 | *dest = 0; |
| 1363 | } |
| 1364 | |
| 1365 | static int |
| 1366 | add_menu_item (HMENU menu, widget_value *wv, HMENU item) |
| 1367 | { |
| 1368 | UINT fuFlags; |
| 1369 | char *out_string, *p, *q; |
| 1370 | int return_value; |
| 1371 | size_t nlen, orig_len; |
| 1372 | USE_SAFE_ALLOCA; |
| 1373 | |
| 1374 | if (menu_separator_name_p (wv->name)) |
| 1375 | { |
| 1376 | fuFlags = MF_SEPARATOR; |
| 1377 | out_string = NULL; |
| 1378 | } |
| 1379 | else |
| 1380 | { |
| 1381 | if (wv->enabled) |
| 1382 | fuFlags = MF_STRING; |
| 1383 | else |
| 1384 | fuFlags = MF_STRING | MF_GRAYED; |
| 1385 | |
| 1386 | if (wv->key != NULL) |
| 1387 | { |
| 1388 | out_string = SAFE_ALLOCA (strlen (wv->name) + strlen (wv->key) + 2); |
| 1389 | strcpy (out_string, wv->name); |
| 1390 | strcat (out_string, "\t"); |
| 1391 | strcat (out_string, wv->key); |
| 1392 | } |
| 1393 | else |
| 1394 | out_string = (char *)wv->name; |
| 1395 | |
| 1396 | /* Quote any special characters within the menu item's text and |
| 1397 | key binding. */ |
| 1398 | nlen = orig_len = strlen (out_string); |
| 1399 | if (unicode_append_menu) |
| 1400 | { |
| 1401 | /* With UTF-8, & cannot be part of a multibyte character. */ |
| 1402 | for (p = out_string; *p; p++) |
| 1403 | { |
| 1404 | if (*p == '&') |
| 1405 | nlen++; |
| 1406 | } |
| 1407 | } |
| 1408 | else |
| 1409 | { |
| 1410 | /* If encoded with the system codepage, use multibyte string |
| 1411 | functions in case of multibyte characters that contain '&'. */ |
| 1412 | for (p = out_string; *p; p = _mbsinc (p)) |
| 1413 | { |
| 1414 | if (_mbsnextc (p) == '&') |
| 1415 | nlen++; |
| 1416 | } |
| 1417 | } |
| 1418 | |
| 1419 | if (nlen > orig_len) |
| 1420 | { |
| 1421 | p = out_string; |
| 1422 | out_string = SAFE_ALLOCA (nlen + 1); |
| 1423 | q = out_string; |
| 1424 | while (*p) |
| 1425 | { |
| 1426 | if (unicode_append_menu) |
| 1427 | { |
| 1428 | if (*p == '&') |
| 1429 | *q++ = *p; |
| 1430 | *q++ = *p++; |
| 1431 | } |
| 1432 | else |
| 1433 | { |
| 1434 | if (_mbsnextc (p) == '&') |
| 1435 | { |
| 1436 | _mbsncpy (q, p, 1); |
| 1437 | q = _mbsinc (q); |
| 1438 | } |
| 1439 | _mbsncpy (q, p, 1); |
| 1440 | p = _mbsinc (p); |
| 1441 | q = _mbsinc (q); |
| 1442 | } |
| 1443 | } |
| 1444 | *q = '\0'; |
| 1445 | } |
| 1446 | |
| 1447 | if (item != NULL) |
| 1448 | fuFlags = MF_POPUP; |
| 1449 | else if (wv->title || wv->call_data == 0) |
| 1450 | { |
| 1451 | /* Only use MF_OWNERDRAW if GetMenuItemInfo is usable, since |
| 1452 | we can't deallocate the memory otherwise. */ |
| 1453 | if (get_menu_item_info) |
| 1454 | { |
| 1455 | out_string = (char *) local_alloc (strlen (wv->name) + 1); |
| 1456 | strcpy (out_string, wv->name); |
| 1457 | #ifdef MENU_DEBUG |
| 1458 | DebPrint ("Menu: allocating %ld for owner-draw", out_string); |
| 1459 | #endif |
| 1460 | fuFlags = MF_OWNERDRAW | MF_DISABLED; |
| 1461 | } |
| 1462 | else |
| 1463 | fuFlags = MF_DISABLED; |
| 1464 | } |
| 1465 | |
| 1466 | /* Draw radio buttons and tickboxes. */ |
| 1467 | else if (wv->selected && (wv->button_type == BUTTON_TYPE_TOGGLE || |
| 1468 | wv->button_type == BUTTON_TYPE_RADIO)) |
| 1469 | fuFlags |= MF_CHECKED; |
| 1470 | else |
| 1471 | fuFlags |= MF_UNCHECKED; |
| 1472 | } |
| 1473 | |
| 1474 | if (unicode_append_menu && out_string) |
| 1475 | { |
| 1476 | /* Convert out_string from UTF-8 to UTF-16-LE. */ |
| 1477 | int utf8_len = strlen (out_string); |
| 1478 | WCHAR * utf16_string; |
| 1479 | if (fuFlags & MF_OWNERDRAW) |
| 1480 | utf16_string = local_alloc ((utf8_len + 1) * sizeof (WCHAR)); |
| 1481 | else |
| 1482 | utf16_string = SAFE_ALLOCA ((utf8_len + 1) * sizeof (WCHAR)); |
| 1483 | |
| 1484 | utf8to16 (out_string, utf8_len, utf16_string); |
| 1485 | return_value = unicode_append_menu (menu, fuFlags, |
| 1486 | item != NULL ? (UINT) item |
| 1487 | : (UINT) wv->call_data, |
| 1488 | utf16_string); |
| 1489 | if (!return_value) |
| 1490 | { |
| 1491 | /* On W9x/ME, Unicode menus are not supported, though AppendMenuW |
| 1492 | apparently does exist at least in some cases and appears to be |
| 1493 | stubbed out to do nothing. out_string is UTF-8, but since |
| 1494 | our standard menus are in English and this is only going to |
| 1495 | happen the first time a menu is used, the encoding is |
| 1496 | of minor importance compared with menus not working at all. */ |
| 1497 | return_value = |
| 1498 | AppendMenu (menu, fuFlags, |
| 1499 | item != NULL ? (UINT) item: (UINT) wv->call_data, |
| 1500 | out_string); |
| 1501 | /* Don't use Unicode menus in future, unless this is Windows |
| 1502 | NT or later, where a failure of AppendMenuW does NOT mean |
| 1503 | Unicode menus are unsupported. */ |
| 1504 | if (osinfo_cache.dwPlatformId != VER_PLATFORM_WIN32_NT) |
| 1505 | unicode_append_menu = NULL; |
| 1506 | } |
| 1507 | |
| 1508 | if (unicode_append_menu && (fuFlags & MF_OWNERDRAW)) |
| 1509 | local_free (out_string); |
| 1510 | } |
| 1511 | else |
| 1512 | { |
| 1513 | return_value = |
| 1514 | AppendMenu (menu, |
| 1515 | fuFlags, |
| 1516 | item != NULL ? (UINT) item : (UINT) wv->call_data, |
| 1517 | out_string ); |
| 1518 | } |
| 1519 | |
| 1520 | /* This must be done after the menu item is created. */ |
| 1521 | if (!wv->title && wv->call_data != 0) |
| 1522 | { |
| 1523 | if (set_menu_item_info) |
| 1524 | { |
| 1525 | MENUITEMINFO info; |
| 1526 | memset (&info, 0, sizeof (info)); |
| 1527 | info.cbSize = sizeof (info); |
| 1528 | info.fMask = MIIM_DATA; |
| 1529 | |
| 1530 | /* Set help string for menu item. Leave it as a Lisp_Object |
| 1531 | until it is ready to be displayed, since GC can happen while |
| 1532 | menus are active. */ |
| 1533 | if (!NILP (wv->help)) |
| 1534 | { |
| 1535 | /* As of Jul-2012, w32api headers say that dwItemData |
| 1536 | has DWORD type, but that's a bug: it should actually |
| 1537 | be ULONG_PTR, which is correct for 32-bit and 64-bit |
| 1538 | Windows alike. MSVC headers get it right; hopefully, |
| 1539 | MinGW headers will, too. */ |
| 1540 | info.dwItemData = (ULONG_PTR) XLI (wv->help); |
| 1541 | } |
| 1542 | if (wv->button_type == BUTTON_TYPE_RADIO) |
| 1543 | { |
| 1544 | /* CheckMenuRadioItem allows us to differentiate TOGGLE and |
| 1545 | RADIO items, but is not available on NT 3.51 and earlier. */ |
| 1546 | info.fMask |= MIIM_TYPE | MIIM_STATE; |
| 1547 | info.fType = MFT_RADIOCHECK | MFT_STRING; |
| 1548 | info.dwTypeData = out_string; |
| 1549 | info.fState = wv->selected ? MFS_CHECKED : MFS_UNCHECKED; |
| 1550 | } |
| 1551 | |
| 1552 | set_menu_item_info (menu, |
| 1553 | item != NULL ? (UINT) item : (UINT) wv->call_data, |
| 1554 | FALSE, &info); |
| 1555 | } |
| 1556 | } |
| 1557 | SAFE_FREE (); |
| 1558 | return return_value; |
| 1559 | } |
| 1560 | |
| 1561 | /* Construct native Windows menu(bar) based on widget_value tree. */ |
| 1562 | static int |
| 1563 | fill_in_menu (HMENU menu, widget_value *wv) |
| 1564 | { |
| 1565 | for ( ; wv != NULL; wv = wv->next) |
| 1566 | { |
| 1567 | if (wv->contents) |
| 1568 | { |
| 1569 | HMENU sub_menu = CreatePopupMenu (); |
| 1570 | |
| 1571 | if (sub_menu == NULL) |
| 1572 | return 0; |
| 1573 | |
| 1574 | if (!fill_in_menu (sub_menu, wv->contents) || |
| 1575 | !add_menu_item (menu, wv, sub_menu)) |
| 1576 | { |
| 1577 | DestroyMenu (sub_menu); |
| 1578 | return 0; |
| 1579 | } |
| 1580 | } |
| 1581 | else |
| 1582 | { |
| 1583 | if (!add_menu_item (menu, wv, NULL)) |
| 1584 | return 0; |
| 1585 | } |
| 1586 | } |
| 1587 | return 1; |
| 1588 | } |
| 1589 | |
| 1590 | /* Display help string for currently pointed to menu item. Not |
| 1591 | supported on NT 3.51 and earlier, as GetMenuItemInfo is not |
| 1592 | available. */ |
| 1593 | void |
| 1594 | w32_menu_display_help (HWND owner, HMENU menu, UINT item, UINT flags) |
| 1595 | { |
| 1596 | if (get_menu_item_info) |
| 1597 | { |
| 1598 | struct frame *f = x_window_to_frame (&one_w32_display_info, owner); |
| 1599 | Lisp_Object frame, help; |
| 1600 | |
| 1601 | /* No help echo on owner-draw menu items, or when the keyboard is used |
| 1602 | to navigate the menus, since tooltips are distracting if they pop |
| 1603 | up elsewhere. */ |
| 1604 | if (flags & MF_OWNERDRAW || flags & MF_POPUP |
| 1605 | || !(flags & MF_MOUSESELECT)) |
| 1606 | help = Qnil; |
| 1607 | else |
| 1608 | { |
| 1609 | MENUITEMINFO info; |
| 1610 | |
| 1611 | memset (&info, 0, sizeof (info)); |
| 1612 | info.cbSize = sizeof (info); |
| 1613 | info.fMask = MIIM_DATA; |
| 1614 | get_menu_item_info (menu, item, FALSE, &info); |
| 1615 | |
| 1616 | help = info.dwItemData ? XIL (info.dwItemData) : Qnil; |
| 1617 | } |
| 1618 | |
| 1619 | /* Store the help echo in the keyboard buffer as the X toolkit |
| 1620 | version does, rather than directly showing it. This seems to |
| 1621 | solve the GC problems that were present when we based the |
| 1622 | Windows code on the non-toolkit version. */ |
| 1623 | if (f) |
| 1624 | { |
| 1625 | XSETFRAME (frame, f); |
| 1626 | kbd_buffer_store_help_event (frame, help); |
| 1627 | } |
| 1628 | else |
| 1629 | /* X version has a loop through frames here, which doesn't |
| 1630 | appear to do anything, unless it has some side effect. */ |
| 1631 | show_help_echo (help, Qnil, Qnil, Qnil); |
| 1632 | } |
| 1633 | } |
| 1634 | |
| 1635 | /* Free memory used by owner-drawn strings. */ |
| 1636 | static void |
| 1637 | w32_free_submenu_strings (HMENU menu) |
| 1638 | { |
| 1639 | int i, num = GetMenuItemCount (menu); |
| 1640 | for (i = 0; i < num; i++) |
| 1641 | { |
| 1642 | MENUITEMINFO info; |
| 1643 | memset (&info, 0, sizeof (info)); |
| 1644 | info.cbSize = sizeof (info); |
| 1645 | info.fMask = MIIM_DATA | MIIM_TYPE | MIIM_SUBMENU; |
| 1646 | |
| 1647 | get_menu_item_info (menu, i, TRUE, &info); |
| 1648 | |
| 1649 | /* Owner-drawn names are held in dwItemData. */ |
| 1650 | if ((info.fType & MF_OWNERDRAW) && info.dwItemData) |
| 1651 | { |
| 1652 | #ifdef MENU_DEBUG |
| 1653 | DebPrint ("Menu: freeing %ld for owner-draw", info.dwItemData); |
| 1654 | #endif |
| 1655 | local_free (info.dwItemData); |
| 1656 | } |
| 1657 | |
| 1658 | /* Recurse down submenus. */ |
| 1659 | if (info.hSubMenu) |
| 1660 | w32_free_submenu_strings (info.hSubMenu); |
| 1661 | } |
| 1662 | } |
| 1663 | |
| 1664 | void |
| 1665 | w32_free_menu_strings (HWND hwnd) |
| 1666 | { |
| 1667 | HMENU menu = current_popup_menu; |
| 1668 | |
| 1669 | if (get_menu_item_info) |
| 1670 | { |
| 1671 | /* If there is no popup menu active, free the strings from the frame's |
| 1672 | menubar. */ |
| 1673 | if (!menu) |
| 1674 | menu = GetMenu (hwnd); |
| 1675 | |
| 1676 | if (menu) |
| 1677 | w32_free_submenu_strings (menu); |
| 1678 | } |
| 1679 | |
| 1680 | current_popup_menu = NULL; |
| 1681 | } |
| 1682 | |
| 1683 | #endif /* HAVE_MENUS */ |
| 1684 | |
| 1685 | /* The following is used by delayed window autoselection. */ |
| 1686 | |
| 1687 | DEFUN ("menu-or-popup-active-p", Fmenu_or_popup_active_p, Smenu_or_popup_active_p, 0, 0, 0, |
| 1688 | doc: /* Return t if a menu or popup dialog is active on selected frame. */) |
| 1689 | (void) |
| 1690 | { |
| 1691 | #ifdef HAVE_MENUS |
| 1692 | FRAME_PTR f; |
| 1693 | f = SELECTED_FRAME (); |
| 1694 | return (f->output_data.w32->menubar_active > 0) ? Qt : Qnil; |
| 1695 | #else |
| 1696 | return Qnil; |
| 1697 | #endif /* HAVE_MENUS */ |
| 1698 | } |
| 1699 | |
| 1700 | void |
| 1701 | syms_of_w32menu (void) |
| 1702 | { |
| 1703 | globals_of_w32menu (); |
| 1704 | |
| 1705 | current_popup_menu = NULL; |
| 1706 | |
| 1707 | DEFSYM (Qdebug_on_next_call, "debug-on-next-call"); |
| 1708 | |
| 1709 | defsubr (&Smenu_or_popup_active_p); |
| 1710 | #ifdef HAVE_MENUS |
| 1711 | defsubr (&Sx_popup_dialog); |
| 1712 | #endif |
| 1713 | } |
| 1714 | |
| 1715 | /* |
| 1716 | globals_of_w32menu is used to initialize those global variables that |
| 1717 | must always be initialized on startup even when the global variable |
| 1718 | initialized is non zero (see the function main in emacs.c). |
| 1719 | globals_of_w32menu is called from syms_of_w32menu when the global |
| 1720 | variable initialized is 0 and directly from main when initialized |
| 1721 | is non zero. |
| 1722 | */ |
| 1723 | void |
| 1724 | globals_of_w32menu (void) |
| 1725 | { |
| 1726 | /* See if Get/SetMenuItemInfo functions are available. */ |
| 1727 | HMODULE user32 = GetModuleHandle ("user32.dll"); |
| 1728 | get_menu_item_info = (GetMenuItemInfoA_Proc) GetProcAddress (user32, "GetMenuItemInfoA"); |
| 1729 | set_menu_item_info = (SetMenuItemInfoA_Proc) GetProcAddress (user32, "SetMenuItemInfoA"); |
| 1730 | unicode_append_menu = (AppendMenuW_Proc) GetProcAddress (user32, "AppendMenuW"); |
| 1731 | unicode_message_box = (MessageBoxW_Proc) GetProcAddress (user32, "MessageBoxW"); |
| 1732 | } |