| 1 | /* X Communication module for terminals which understand the X protocol. |
| 2 | Copyright (C) 1986, 1988, 1993, 1994, 1996, 1999, 2000, 2001, 2002, 2003, |
| 3 | 2004, 2005, 2006, 2007, 2008, 2009 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 | /* X pop-up deck-of-cards menu facility for GNU Emacs. |
| 21 | * |
| 22 | * Written by Jon Arnold and Roman Budzianowski |
| 23 | * Mods and rewrite by Robert Krawitz |
| 24 | * |
| 25 | */ |
| 26 | |
| 27 | /* Modified by Fred Pierresteguy on December 93 |
| 28 | to make the popup menus and menubar use the Xt. */ |
| 29 | |
| 30 | /* Rewritten for clarity and GC protection by rms in Feb 94. */ |
| 31 | |
| 32 | #include <config.h> |
| 33 | |
| 34 | #if 0 /* Why was this included? And without syssignal.h? */ |
| 35 | /* On 4.3 this loses if it comes after xterm.h. */ |
| 36 | #include <signal.h> |
| 37 | #endif |
| 38 | |
| 39 | #include <stdio.h> |
| 40 | |
| 41 | #include "lisp.h" |
| 42 | #include "keyboard.h" |
| 43 | #include "keymap.h" |
| 44 | #include "frame.h" |
| 45 | #include "termhooks.h" |
| 46 | #include "window.h" |
| 47 | #include "blockinput.h" |
| 48 | #include "buffer.h" |
| 49 | #include "charset.h" |
| 50 | #include "coding.h" |
| 51 | #include "sysselect.h" |
| 52 | |
| 53 | #ifdef MSDOS |
| 54 | #include "msdos.h" |
| 55 | #endif |
| 56 | |
| 57 | #ifdef HAVE_X_WINDOWS |
| 58 | /* This may include sys/types.h, and that somehow loses |
| 59 | if this is not done before the other system files. */ |
| 60 | #include "xterm.h" |
| 61 | #endif |
| 62 | |
| 63 | /* Load sys/types.h if not already loaded. |
| 64 | In some systems loading it twice is suicidal. */ |
| 65 | #ifndef makedev |
| 66 | #include <sys/types.h> |
| 67 | #endif |
| 68 | |
| 69 | #include "dispextern.h" |
| 70 | |
| 71 | #ifdef HAVE_X_WINDOWS |
| 72 | /* Defining HAVE_MULTILINGUAL_MENU would mean that the toolkit menu |
| 73 | code accepts the Emacs internal encoding. */ |
| 74 | #undef HAVE_MULTILINGUAL_MENU |
| 75 | #ifdef USE_X_TOOLKIT |
| 76 | #include "widget.h" |
| 77 | #include <X11/Xlib.h> |
| 78 | #include <X11/IntrinsicP.h> |
| 79 | #include <X11/CoreP.h> |
| 80 | #include <X11/StringDefs.h> |
| 81 | #include <X11/Shell.h> |
| 82 | #ifdef USE_LUCID |
| 83 | #ifdef HAVE_XAW3D |
| 84 | #include <X11/Xaw3d/Paned.h> |
| 85 | #else /* !HAVE_XAW3D */ |
| 86 | #include <X11/Xaw/Paned.h> |
| 87 | #endif /* HAVE_XAW3D */ |
| 88 | #endif /* USE_LUCID */ |
| 89 | #include "../lwlib/lwlib.h" |
| 90 | #else /* not USE_X_TOOLKIT */ |
| 91 | #ifndef USE_GTK |
| 92 | #include "../oldXMenu/XMenu.h" |
| 93 | #endif |
| 94 | #endif /* not USE_X_TOOLKIT */ |
| 95 | #endif /* HAVE_X_WINDOWS */ |
| 96 | |
| 97 | #ifdef USE_GTK |
| 98 | #include "gtkutil.h" |
| 99 | #endif |
| 100 | |
| 101 | #include "menu.h" |
| 102 | |
| 103 | #ifndef TRUE |
| 104 | #define TRUE 1 |
| 105 | #define FALSE 0 |
| 106 | #endif /* no TRUE */ |
| 107 | |
| 108 | Lisp_Object Qdebug_on_next_call; |
| 109 | |
| 110 | extern Lisp_Object Vmenu_updating_frame; |
| 111 | |
| 112 | extern Lisp_Object Qmenu_bar; |
| 113 | |
| 114 | extern Lisp_Object QCtoggle, QCradio; |
| 115 | |
| 116 | extern Lisp_Object Voverriding_local_map; |
| 117 | extern Lisp_Object Voverriding_local_map_menu_flag; |
| 118 | |
| 119 | extern Lisp_Object Qoverriding_local_map, Qoverriding_terminal_local_map; |
| 120 | |
| 121 | extern Lisp_Object Qmenu_bar_update_hook; |
| 122 | |
| 123 | #ifdef USE_X_TOOLKIT |
| 124 | extern void set_frame_menubar P_ ((FRAME_PTR, int, int)); |
| 125 | extern XtAppContext Xt_app_con; |
| 126 | |
| 127 | static Lisp_Object xdialog_show P_ ((FRAME_PTR, int, Lisp_Object, Lisp_Object, |
| 128 | char **)); |
| 129 | static void popup_get_selection P_ ((XEvent *, struct x_display_info *, |
| 130 | LWLIB_ID, int)); |
| 131 | #endif /* USE_X_TOOLKIT */ |
| 132 | |
| 133 | #ifdef USE_GTK |
| 134 | extern void set_frame_menubar P_ ((FRAME_PTR, int, int)); |
| 135 | static Lisp_Object xdialog_show P_ ((FRAME_PTR, int, Lisp_Object, Lisp_Object, |
| 136 | char **)); |
| 137 | #endif |
| 138 | |
| 139 | static int update_frame_menubar P_ ((struct frame *)); |
| 140 | static Lisp_Object xmenu_show P_ ((struct frame *, int, int, int, int, |
| 141 | Lisp_Object, char **)); |
| 142 | \f |
| 143 | /* Flag which when set indicates a dialog or menu has been posted by |
| 144 | Xt on behalf of one of the widget sets. */ |
| 145 | static int popup_activated_flag; |
| 146 | |
| 147 | static int next_menubar_widget_id; |
| 148 | |
| 149 | /* For NS and NTGUI, these prototypes are defined in keyboard.h. */ |
| 150 | #if defined (USE_X_TOOLKIT) || defined (USE_GTK) |
| 151 | extern widget_value *xmalloc_widget_value P_ ((void)); |
| 152 | extern widget_value *digest_single_submenu P_ ((int, int, int)); |
| 153 | #endif |
| 154 | |
| 155 | /* This is set nonzero after the user activates the menu bar, and set |
| 156 | to zero again after the menu bars are redisplayed by prepare_menu_bar. |
| 157 | While it is nonzero, all calls to set_frame_menubar go deep. |
| 158 | |
| 159 | I don't understand why this is needed, but it does seem to be |
| 160 | needed on Motif, according to Marcus Daniels <marcus@sysc.pdx.edu>. */ |
| 161 | |
| 162 | int pending_menu_activation; |
| 163 | \f |
| 164 | #ifdef USE_X_TOOLKIT |
| 165 | |
| 166 | /* Return the frame whose ->output_data.x->id equals ID, or 0 if none. */ |
| 167 | |
| 168 | static struct frame * |
| 169 | menubar_id_to_frame (id) |
| 170 | LWLIB_ID id; |
| 171 | { |
| 172 | Lisp_Object tail, frame; |
| 173 | FRAME_PTR f; |
| 174 | |
| 175 | for (tail = Vframe_list; CONSP (tail); tail = XCDR (tail)) |
| 176 | { |
| 177 | frame = XCAR (tail); |
| 178 | if (!FRAMEP (frame)) |
| 179 | continue; |
| 180 | f = XFRAME (frame); |
| 181 | if (!FRAME_WINDOW_P (f)) |
| 182 | continue; |
| 183 | if (f->output_data.x->id == id) |
| 184 | return f; |
| 185 | } |
| 186 | return 0; |
| 187 | } |
| 188 | |
| 189 | #endif |
| 190 | \f |
| 191 | #ifdef HAVE_X_WINDOWS |
| 192 | /* Return the mouse position in *X and *Y. The coordinates are window |
| 193 | relative for the edit window in frame F. |
| 194 | This is for Fx_popup_menu. The mouse_position_hook can not |
| 195 | be used for X, as it returns window relative coordinates |
| 196 | for the window where the mouse is in. This could be the menu bar, |
| 197 | the scroll bar or the edit window. Fx_popup_menu needs to be |
| 198 | sure it is the edit window. */ |
| 199 | static void |
| 200 | mouse_position_for_popup (f, x, y) |
| 201 | FRAME_PTR f; |
| 202 | int *x; |
| 203 | int *y; |
| 204 | { |
| 205 | Window root, dummy_window; |
| 206 | int dummy; |
| 207 | |
| 208 | if (! FRAME_X_P (f)) |
| 209 | abort (); |
| 210 | |
| 211 | BLOCK_INPUT; |
| 212 | |
| 213 | XQueryPointer (FRAME_X_DISPLAY (f), |
| 214 | DefaultRootWindow (FRAME_X_DISPLAY (f)), |
| 215 | |
| 216 | /* The root window which contains the pointer. */ |
| 217 | &root, |
| 218 | |
| 219 | /* Window pointer is on, not used */ |
| 220 | &dummy_window, |
| 221 | |
| 222 | /* The position on that root window. */ |
| 223 | x, y, |
| 224 | |
| 225 | /* x/y in dummy_window coordinates, not used. */ |
| 226 | &dummy, &dummy, |
| 227 | |
| 228 | /* Modifier keys and pointer buttons, about which |
| 229 | we don't care. */ |
| 230 | (unsigned int *) &dummy); |
| 231 | |
| 232 | UNBLOCK_INPUT; |
| 233 | |
| 234 | /* xmenu_show expects window coordinates, not root window |
| 235 | coordinates. Translate. */ |
| 236 | *x -= f->left_pos + FRAME_OUTER_TO_INNER_DIFF_X (f); |
| 237 | *y -= f->top_pos + FRAME_OUTER_TO_INNER_DIFF_Y (f); |
| 238 | } |
| 239 | |
| 240 | #endif /* HAVE_X_WINDOWS */ |
| 241 | |
| 242 | DEFUN ("x-popup-menu", Fx_popup_menu, Sx_popup_menu, 2, 2, 0, |
| 243 | doc: /* Pop up a deck-of-cards menu and return user's selection. |
| 244 | POSITION is a position specification. This is either a mouse button event |
| 245 | or a list ((XOFFSET YOFFSET) WINDOW) |
| 246 | where XOFFSET and YOFFSET are positions in pixels from the top left |
| 247 | corner of WINDOW. (WINDOW may be a window or a frame object.) |
| 248 | This controls the position of the top left of the menu as a whole. |
| 249 | If POSITION is t, it means to use the current mouse position. |
| 250 | |
| 251 | MENU is a specifier for a menu. For the simplest case, MENU is a keymap. |
| 252 | The menu items come from key bindings that have a menu string as well as |
| 253 | a definition; actually, the "definition" in such a key binding looks like |
| 254 | \(STRING . REAL-DEFINITION). To give the menu a title, put a string into |
| 255 | the keymap as a top-level element. |
| 256 | |
| 257 | If REAL-DEFINITION is nil, that puts a nonselectable string in the menu. |
| 258 | Otherwise, REAL-DEFINITION should be a valid key binding definition. |
| 259 | |
| 260 | You can also use a list of keymaps as MENU. |
| 261 | Then each keymap makes a separate pane. |
| 262 | |
| 263 | When MENU is a keymap or a list of keymaps, the return value is the |
| 264 | list of events corresponding to the user's choice. Note that |
| 265 | `x-popup-menu' does not actually execute the command bound to that |
| 266 | sequence of events. |
| 267 | |
| 268 | Alternatively, you can specify a menu of multiple panes |
| 269 | with a list of the form (TITLE PANE1 PANE2...), |
| 270 | where each pane is a list of form (TITLE ITEM1 ITEM2...). |
| 271 | Each ITEM is normally a cons cell (STRING . VALUE); |
| 272 | but a string can appear as an item--that makes a nonselectable line |
| 273 | in the menu. |
| 274 | With this form of menu, the return value is VALUE from the chosen item. |
| 275 | |
| 276 | If POSITION is nil, don't display the menu at all, just precalculate the |
| 277 | cached information about equivalent key sequences. |
| 278 | |
| 279 | If the user gets rid of the menu without making a valid choice, for |
| 280 | instance by clicking the mouse away from a valid choice or by typing |
| 281 | keyboard input, then this normally results in a quit and |
| 282 | `x-popup-menu' does not return. But if POSITION is a mouse button |
| 283 | event (indicating that the user invoked the menu with the mouse) then |
| 284 | no quit occurs and `x-popup-menu' returns nil. */) |
| 285 | (position, menu) |
| 286 | Lisp_Object position, menu; |
| 287 | { |
| 288 | Lisp_Object keymap, tem; |
| 289 | int xpos = 0, ypos = 0; |
| 290 | Lisp_Object title; |
| 291 | char *error_name = NULL; |
| 292 | Lisp_Object selection = Qnil; |
| 293 | FRAME_PTR f = NULL; |
| 294 | Lisp_Object x, y, window; |
| 295 | int keymaps = 0; |
| 296 | int for_click = 0; |
| 297 | int specpdl_count = SPECPDL_INDEX (); |
| 298 | struct gcpro gcpro1; |
| 299 | |
| 300 | #ifdef HAVE_MENUS |
| 301 | if (! NILP (position)) |
| 302 | { |
| 303 | int get_current_pos_p = 0; |
| 304 | check_x (); |
| 305 | |
| 306 | /* Decode the first argument: find the window and the coordinates. */ |
| 307 | if (EQ (position, Qt) |
| 308 | || (CONSP (position) && (EQ (XCAR (position), Qmenu_bar) |
| 309 | || EQ (XCAR (position), Qtool_bar)))) |
| 310 | { |
| 311 | get_current_pos_p = 1; |
| 312 | } |
| 313 | else |
| 314 | { |
| 315 | tem = Fcar (position); |
| 316 | if (CONSP (tem)) |
| 317 | { |
| 318 | window = Fcar (Fcdr (position)); |
| 319 | x = XCAR (tem); |
| 320 | y = Fcar (XCDR (tem)); |
| 321 | } |
| 322 | else |
| 323 | { |
| 324 | for_click = 1; |
| 325 | tem = Fcar (Fcdr (position)); /* EVENT_START (position) */ |
| 326 | window = Fcar (tem); /* POSN_WINDOW (tem) */ |
| 327 | tem = Fcar (Fcdr (Fcdr (tem))); /* POSN_WINDOW_POSN (tem) */ |
| 328 | x = Fcar (tem); |
| 329 | y = Fcdr (tem); |
| 330 | } |
| 331 | |
| 332 | /* If a click happens in an external tool bar or a detached |
| 333 | tool bar, x and y is NIL. In that case, use the current |
| 334 | mouse position. This happens for the help button in the |
| 335 | tool bar. Ideally popup-menu should pass NIL to |
| 336 | this function, but it doesn't. */ |
| 337 | if (NILP (x) && NILP (y)) |
| 338 | get_current_pos_p = 1; |
| 339 | } |
| 340 | |
| 341 | if (get_current_pos_p) |
| 342 | { |
| 343 | /* Use the mouse's current position. */ |
| 344 | FRAME_PTR new_f = SELECTED_FRAME (); |
| 345 | #ifdef HAVE_X_WINDOWS |
| 346 | /* Can't use mouse_position_hook for X since it returns |
| 347 | coordinates relative to the window the mouse is in, |
| 348 | we need coordinates relative to the edit widget always. */ |
| 349 | if (new_f != 0) |
| 350 | { |
| 351 | int cur_x, cur_y; |
| 352 | |
| 353 | mouse_position_for_popup (new_f, &cur_x, &cur_y); |
| 354 | /* cur_x/y may be negative, so use make_number. */ |
| 355 | x = make_number (cur_x); |
| 356 | y = make_number (cur_y); |
| 357 | } |
| 358 | |
| 359 | #else /* not HAVE_X_WINDOWS */ |
| 360 | Lisp_Object bar_window; |
| 361 | enum scroll_bar_part part; |
| 362 | unsigned long time; |
| 363 | void (*mouse_position_hook) P_ ((struct frame **, int, |
| 364 | Lisp_Object *, |
| 365 | enum scroll_bar_part *, |
| 366 | Lisp_Object *, |
| 367 | Lisp_Object *, |
| 368 | unsigned long *)) = |
| 369 | new_f->terminal->mouse_position_hook; |
| 370 | |
| 371 | if (mouse_position_hook) |
| 372 | (*mouse_position_hook) (&new_f, 1, &bar_window, |
| 373 | &part, &x, &y, &time); |
| 374 | #endif /* not HAVE_X_WINDOWS */ |
| 375 | |
| 376 | if (new_f != 0) |
| 377 | XSETFRAME (window, new_f); |
| 378 | else |
| 379 | { |
| 380 | window = selected_window; |
| 381 | XSETFASTINT (x, 0); |
| 382 | XSETFASTINT (y, 0); |
| 383 | } |
| 384 | } |
| 385 | |
| 386 | CHECK_NUMBER (x); |
| 387 | CHECK_NUMBER (y); |
| 388 | |
| 389 | /* Decode where to put the menu. */ |
| 390 | |
| 391 | if (FRAMEP (window)) |
| 392 | { |
| 393 | f = XFRAME (window); |
| 394 | xpos = 0; |
| 395 | ypos = 0; |
| 396 | } |
| 397 | else if (WINDOWP (window)) |
| 398 | { |
| 399 | CHECK_LIVE_WINDOW (window); |
| 400 | f = XFRAME (WINDOW_FRAME (XWINDOW (window))); |
| 401 | |
| 402 | xpos = WINDOW_LEFT_EDGE_X (XWINDOW (window)); |
| 403 | ypos = WINDOW_TOP_EDGE_Y (XWINDOW (window)); |
| 404 | } |
| 405 | else |
| 406 | /* ??? Not really clean; should be CHECK_WINDOW_OR_FRAME, |
| 407 | but I don't want to make one now. */ |
| 408 | CHECK_WINDOW (window); |
| 409 | |
| 410 | xpos += XINT (x); |
| 411 | ypos += XINT (y); |
| 412 | |
| 413 | if (! FRAME_X_P (f) && ! FRAME_MSDOS_P (f)) |
| 414 | error ("Can not put X menu on this terminal"); |
| 415 | |
| 416 | XSETFRAME (Vmenu_updating_frame, f); |
| 417 | } |
| 418 | else |
| 419 | Vmenu_updating_frame = Qnil; |
| 420 | #endif /* HAVE_MENUS */ |
| 421 | |
| 422 | record_unwind_protect (unuse_menu_items, Qnil); |
| 423 | title = Qnil; |
| 424 | GCPRO1 (title); |
| 425 | |
| 426 | /* Decode the menu items from what was specified. */ |
| 427 | |
| 428 | keymap = get_keymap (menu, 0, 0); |
| 429 | if (CONSP (keymap)) |
| 430 | { |
| 431 | /* We were given a keymap. Extract menu info from the keymap. */ |
| 432 | Lisp_Object prompt; |
| 433 | |
| 434 | /* Extract the detailed info to make one pane. */ |
| 435 | keymap_panes (&menu, 1, NILP (position)); |
| 436 | |
| 437 | /* Search for a string appearing directly as an element of the keymap. |
| 438 | That string is the title of the menu. */ |
| 439 | prompt = Fkeymap_prompt (keymap); |
| 440 | if (NILP (title) && !NILP (prompt)) |
| 441 | title = prompt; |
| 442 | |
| 443 | /* Make that be the pane title of the first pane. */ |
| 444 | if (!NILP (prompt) && menu_items_n_panes >= 0) |
| 445 | XVECTOR (menu_items)->contents[MENU_ITEMS_PANE_NAME] = prompt; |
| 446 | |
| 447 | keymaps = 1; |
| 448 | } |
| 449 | else if (CONSP (menu) && KEYMAPP (XCAR (menu))) |
| 450 | { |
| 451 | /* We were given a list of keymaps. */ |
| 452 | int nmaps = XFASTINT (Flength (menu)); |
| 453 | Lisp_Object *maps |
| 454 | = (Lisp_Object *) alloca (nmaps * sizeof (Lisp_Object)); |
| 455 | int i; |
| 456 | |
| 457 | title = Qnil; |
| 458 | |
| 459 | /* The first keymap that has a prompt string |
| 460 | supplies the menu title. */ |
| 461 | for (tem = menu, i = 0; CONSP (tem); tem = XCDR (tem)) |
| 462 | { |
| 463 | Lisp_Object prompt; |
| 464 | |
| 465 | maps[i++] = keymap = get_keymap (XCAR (tem), 1, 0); |
| 466 | |
| 467 | prompt = Fkeymap_prompt (keymap); |
| 468 | if (NILP (title) && !NILP (prompt)) |
| 469 | title = prompt; |
| 470 | } |
| 471 | |
| 472 | /* Extract the detailed info to make one pane. */ |
| 473 | keymap_panes (maps, nmaps, NILP (position)); |
| 474 | |
| 475 | /* Make the title be the pane title of the first pane. */ |
| 476 | if (!NILP (title) && menu_items_n_panes >= 0) |
| 477 | XVECTOR (menu_items)->contents[MENU_ITEMS_PANE_NAME] = title; |
| 478 | |
| 479 | keymaps = 1; |
| 480 | } |
| 481 | else |
| 482 | { |
| 483 | /* We were given an old-fashioned menu. */ |
| 484 | title = Fcar (menu); |
| 485 | CHECK_STRING (title); |
| 486 | |
| 487 | list_of_panes (Fcdr (menu)); |
| 488 | |
| 489 | keymaps = 0; |
| 490 | } |
| 491 | |
| 492 | unbind_to (specpdl_count, Qnil); |
| 493 | |
| 494 | if (NILP (position)) |
| 495 | { |
| 496 | discard_menu_items (); |
| 497 | UNGCPRO; |
| 498 | return Qnil; |
| 499 | } |
| 500 | |
| 501 | #ifdef HAVE_MENUS |
| 502 | /* Display them in a menu. */ |
| 503 | BLOCK_INPUT; |
| 504 | |
| 505 | selection = xmenu_show (f, xpos, ypos, for_click, |
| 506 | keymaps, title, &error_name); |
| 507 | UNBLOCK_INPUT; |
| 508 | |
| 509 | discard_menu_items (); |
| 510 | |
| 511 | UNGCPRO; |
| 512 | #endif /* HAVE_MENUS */ |
| 513 | |
| 514 | if (error_name) error (error_name); |
| 515 | return selection; |
| 516 | } |
| 517 | |
| 518 | #ifdef HAVE_MENUS |
| 519 | |
| 520 | DEFUN ("x-popup-dialog", Fx_popup_dialog, Sx_popup_dialog, 2, 3, 0, |
| 521 | doc: /* Pop up a dialog box and return user's selection. |
| 522 | POSITION specifies which frame to use. |
| 523 | This is normally a mouse button event or a window or frame. |
| 524 | If POSITION is t, it means to use the frame the mouse is on. |
| 525 | The dialog box appears in the middle of the specified frame. |
| 526 | |
| 527 | CONTENTS specifies the alternatives to display in the dialog box. |
| 528 | It is a list of the form (DIALOG ITEM1 ITEM2...). |
| 529 | Each ITEM is a cons cell (STRING . VALUE). |
| 530 | The return value is VALUE from the chosen item. |
| 531 | |
| 532 | An ITEM may also be just a string--that makes a nonselectable item. |
| 533 | An ITEM may also be nil--that means to put all preceding items |
| 534 | on the left of the dialog box and all following items on the right. |
| 535 | \(By default, approximately half appear on each side.) |
| 536 | |
| 537 | If HEADER is non-nil, the frame title for the box is "Information", |
| 538 | otherwise it is "Question". |
| 539 | |
| 540 | If the user gets rid of the dialog box without making a valid choice, |
| 541 | for instance using the window manager, then this produces a quit and |
| 542 | `x-popup-dialog' does not return. */) |
| 543 | (position, contents, header) |
| 544 | Lisp_Object position, contents, header; |
| 545 | { |
| 546 | FRAME_PTR f = NULL; |
| 547 | Lisp_Object window; |
| 548 | |
| 549 | check_x (); |
| 550 | |
| 551 | /* Decode the first argument: find the window or frame to use. */ |
| 552 | if (EQ (position, Qt) |
| 553 | || (CONSP (position) && (EQ (XCAR (position), Qmenu_bar) |
| 554 | || EQ (XCAR (position), Qtool_bar)))) |
| 555 | { |
| 556 | #if 0 /* Using the frame the mouse is on may not be right. */ |
| 557 | /* Use the mouse's current position. */ |
| 558 | FRAME_PTR new_f = SELECTED_FRAME (); |
| 559 | Lisp_Object bar_window; |
| 560 | enum scroll_bar_part part; |
| 561 | unsigned long time; |
| 562 | Lisp_Object x, y; |
| 563 | |
| 564 | (*mouse_position_hook) (&new_f, 1, &bar_window, &part, &x, &y, &time); |
| 565 | |
| 566 | if (new_f != 0) |
| 567 | XSETFRAME (window, new_f); |
| 568 | else |
| 569 | window = selected_window; |
| 570 | #endif |
| 571 | window = selected_window; |
| 572 | } |
| 573 | else if (CONSP (position)) |
| 574 | { |
| 575 | Lisp_Object tem; |
| 576 | tem = Fcar (position); |
| 577 | if (CONSP (tem)) |
| 578 | window = Fcar (Fcdr (position)); |
| 579 | else |
| 580 | { |
| 581 | tem = Fcar (Fcdr (position)); /* EVENT_START (position) */ |
| 582 | window = Fcar (tem); /* POSN_WINDOW (tem) */ |
| 583 | } |
| 584 | } |
| 585 | else if (WINDOWP (position) || FRAMEP (position)) |
| 586 | window = position; |
| 587 | else |
| 588 | window = Qnil; |
| 589 | |
| 590 | /* Decode where to put the menu. */ |
| 591 | |
| 592 | if (FRAMEP (window)) |
| 593 | f = XFRAME (window); |
| 594 | else if (WINDOWP (window)) |
| 595 | { |
| 596 | CHECK_LIVE_WINDOW (window); |
| 597 | f = XFRAME (WINDOW_FRAME (XWINDOW (window))); |
| 598 | } |
| 599 | else |
| 600 | /* ??? Not really clean; should be CHECK_WINDOW_OR_FRAME, |
| 601 | but I don't want to make one now. */ |
| 602 | CHECK_WINDOW (window); |
| 603 | |
| 604 | if (! FRAME_X_P (f) && ! FRAME_MSDOS_P (f)) |
| 605 | error ("Can not put X dialog on this terminal"); |
| 606 | |
| 607 | #if ! defined (USE_X_TOOLKIT) && ! defined (USE_GTK) |
| 608 | /* Display a menu with these alternatives |
| 609 | in the middle of frame F. */ |
| 610 | { |
| 611 | Lisp_Object x, y, frame, newpos; |
| 612 | XSETFRAME (frame, f); |
| 613 | XSETINT (x, x_pixel_width (f) / 2); |
| 614 | XSETINT (y, x_pixel_height (f) / 2); |
| 615 | newpos = Fcons (Fcons (x, Fcons (y, Qnil)), Fcons (frame, Qnil)); |
| 616 | |
| 617 | return Fx_popup_menu (newpos, |
| 618 | Fcons (Fcar (contents), Fcons (contents, Qnil))); |
| 619 | } |
| 620 | #else |
| 621 | { |
| 622 | Lisp_Object title; |
| 623 | char *error_name; |
| 624 | Lisp_Object selection; |
| 625 | int specpdl_count = SPECPDL_INDEX (); |
| 626 | |
| 627 | /* Decode the dialog items from what was specified. */ |
| 628 | title = Fcar (contents); |
| 629 | CHECK_STRING (title); |
| 630 | record_unwind_protect (unuse_menu_items, Qnil); |
| 631 | |
| 632 | if (NILP (Fcar (Fcdr (contents)))) |
| 633 | /* No buttons specified, add an "Ok" button so users can pop down |
| 634 | the dialog. Also, the lesstif/motif version crashes if there are |
| 635 | no buttons. */ |
| 636 | contents = Fcons (title, Fcons (Fcons (build_string ("Ok"), Qt), Qnil)); |
| 637 | |
| 638 | list_of_panes (Fcons (contents, Qnil)); |
| 639 | |
| 640 | /* Display them in a dialog box. */ |
| 641 | BLOCK_INPUT; |
| 642 | selection = xdialog_show (f, 0, title, header, &error_name); |
| 643 | UNBLOCK_INPUT; |
| 644 | |
| 645 | unbind_to (specpdl_count, Qnil); |
| 646 | discard_menu_items (); |
| 647 | |
| 648 | if (error_name) error (error_name); |
| 649 | return selection; |
| 650 | } |
| 651 | #endif |
| 652 | } |
| 653 | |
| 654 | |
| 655 | #ifndef MSDOS |
| 656 | |
| 657 | /* Set menu_items_inuse so no other popup menu or dialog is created. */ |
| 658 | |
| 659 | void |
| 660 | x_menu_set_in_use (in_use) |
| 661 | int in_use; |
| 662 | { |
| 663 | menu_items_inuse = in_use ? Qt : Qnil; |
| 664 | popup_activated_flag = in_use; |
| 665 | #ifdef USE_X_TOOLKIT |
| 666 | if (popup_activated_flag) |
| 667 | x_activate_timeout_atimer (); |
| 668 | #endif |
| 669 | } |
| 670 | |
| 671 | /* Wait for an X event to arrive or for a timer to expire. */ |
| 672 | |
| 673 | void |
| 674 | x_menu_wait_for_event (void *data) |
| 675 | { |
| 676 | extern EMACS_TIME timer_check P_ ((int)); |
| 677 | |
| 678 | /* Another way to do this is to register a timer callback, that can be |
| 679 | done in GTK and Xt. But we have to do it like this when using only X |
| 680 | anyway, and with callbacks we would have three variants for timer handling |
| 681 | instead of the small ifdefs below. */ |
| 682 | |
| 683 | while ( |
| 684 | #ifdef USE_X_TOOLKIT |
| 685 | ! XtAppPending (Xt_app_con) |
| 686 | #elif defined USE_GTK |
| 687 | ! gtk_events_pending () |
| 688 | #else |
| 689 | ! XPending ((Display*) data) |
| 690 | #endif |
| 691 | ) |
| 692 | { |
| 693 | EMACS_TIME next_time = timer_check (1); |
| 694 | long secs = EMACS_SECS (next_time); |
| 695 | long usecs = EMACS_USECS (next_time); |
| 696 | SELECT_TYPE read_fds; |
| 697 | struct x_display_info *dpyinfo; |
| 698 | int n = 0; |
| 699 | |
| 700 | FD_ZERO (&read_fds); |
| 701 | for (dpyinfo = x_display_list; dpyinfo; dpyinfo = dpyinfo->next) |
| 702 | { |
| 703 | int fd = ConnectionNumber (dpyinfo->display); |
| 704 | FD_SET (fd, &read_fds); |
| 705 | if (fd > n) n = fd; |
| 706 | } |
| 707 | |
| 708 | if (secs < 0 || (secs == 0 && usecs == 0)) |
| 709 | { |
| 710 | /* Sometimes timer_check returns -1 (no timers) even if there are |
| 711 | timers. So do a timeout anyway. */ |
| 712 | EMACS_SET_SECS (next_time, 1); |
| 713 | EMACS_SET_USECS (next_time, 0); |
| 714 | } |
| 715 | |
| 716 | select (n + 1, &read_fds, (SELECT_TYPE *)0, (SELECT_TYPE *)0, &next_time); |
| 717 | } |
| 718 | } |
| 719 | #endif /* ! MSDOS */ |
| 720 | |
| 721 | \f |
| 722 | #if defined (USE_X_TOOLKIT) || defined (USE_GTK) |
| 723 | |
| 724 | #ifdef USE_X_TOOLKIT |
| 725 | |
| 726 | /* Loop in Xt until the menu pulldown or dialog popup has been |
| 727 | popped down (deactivated). This is used for x-popup-menu |
| 728 | and x-popup-dialog; it is not used for the menu bar. |
| 729 | |
| 730 | NOTE: All calls to popup_get_selection should be protected |
| 731 | with BLOCK_INPUT, UNBLOCK_INPUT wrappers. */ |
| 732 | |
| 733 | static void |
| 734 | popup_get_selection (initial_event, dpyinfo, id, do_timers) |
| 735 | XEvent *initial_event; |
| 736 | struct x_display_info *dpyinfo; |
| 737 | LWLIB_ID id; |
| 738 | int do_timers; |
| 739 | { |
| 740 | XEvent event; |
| 741 | |
| 742 | while (popup_activated_flag) |
| 743 | { |
| 744 | if (initial_event) |
| 745 | { |
| 746 | event = *initial_event; |
| 747 | initial_event = 0; |
| 748 | } |
| 749 | else |
| 750 | { |
| 751 | if (do_timers) x_menu_wait_for_event (0); |
| 752 | XtAppNextEvent (Xt_app_con, &event); |
| 753 | } |
| 754 | |
| 755 | /* Make sure we don't consider buttons grabbed after menu goes. |
| 756 | And make sure to deactivate for any ButtonRelease, |
| 757 | even if XtDispatchEvent doesn't do that. */ |
| 758 | if (event.type == ButtonRelease |
| 759 | && dpyinfo->display == event.xbutton.display) |
| 760 | { |
| 761 | dpyinfo->grabbed &= ~(1 << event.xbutton.button); |
| 762 | #ifdef USE_MOTIF /* Pretending that the event came from a |
| 763 | Btn1Down seems the only way to convince Motif to |
| 764 | activate its callbacks; setting the XmNmenuPost |
| 765 | isn't working. --marcus@sysc.pdx.edu. */ |
| 766 | event.xbutton.button = 1; |
| 767 | /* Motif only pops down menus when no Ctrl, Alt or Mod |
| 768 | key is pressed and the button is released. So reset key state |
| 769 | so Motif thinks this is the case. */ |
| 770 | event.xbutton.state = 0; |
| 771 | #endif |
| 772 | } |
| 773 | /* Pop down on C-g and Escape. */ |
| 774 | else if (event.type == KeyPress |
| 775 | && dpyinfo->display == event.xbutton.display) |
| 776 | { |
| 777 | KeySym keysym = XLookupKeysym (&event.xkey, 0); |
| 778 | |
| 779 | if ((keysym == XK_g && (event.xkey.state & ControlMask) != 0) |
| 780 | || keysym == XK_Escape) /* Any escape, ignore modifiers. */ |
| 781 | popup_activated_flag = 0; |
| 782 | } |
| 783 | |
| 784 | x_dispatch_event (&event, event.xany.display); |
| 785 | } |
| 786 | } |
| 787 | |
| 788 | DEFUN ("x-menu-bar-open-internal", Fx_menu_bar_open_internal, Sx_menu_bar_open_internal, 0, 1, "i", |
| 789 | doc: /* Start key navigation of the menu bar in FRAME. |
| 790 | This initially opens the first menu bar item and you can then navigate with the |
| 791 | arrow keys, select a menu entry with the return key or cancel with the |
| 792 | escape key. If FRAME has no menu bar this function does nothing. |
| 793 | |
| 794 | If FRAME is nil or not given, use the selected frame. */) |
| 795 | (frame) |
| 796 | Lisp_Object frame; |
| 797 | { |
| 798 | XEvent ev; |
| 799 | FRAME_PTR f = check_x_frame (frame); |
| 800 | Widget menubar; |
| 801 | BLOCK_INPUT; |
| 802 | |
| 803 | if (FRAME_EXTERNAL_MENU_BAR (f)) |
| 804 | set_frame_menubar (f, 0, 1); |
| 805 | |
| 806 | menubar = FRAME_X_OUTPUT (f)->menubar_widget; |
| 807 | if (menubar) |
| 808 | { |
| 809 | Window child; |
| 810 | int error_p = 0; |
| 811 | |
| 812 | x_catch_errors (FRAME_X_DISPLAY (f)); |
| 813 | memset (&ev, 0, sizeof ev); |
| 814 | ev.xbutton.display = FRAME_X_DISPLAY (f); |
| 815 | ev.xbutton.window = XtWindow (menubar); |
| 816 | ev.xbutton.root = FRAME_X_DISPLAY_INFO (f)->root_window; |
| 817 | ev.xbutton.time = XtLastTimestampProcessed (FRAME_X_DISPLAY (f)); |
| 818 | ev.xbutton.button = Button1; |
| 819 | ev.xbutton.x = ev.xbutton.y = FRAME_MENUBAR_HEIGHT (f) / 2; |
| 820 | ev.xbutton.same_screen = True; |
| 821 | |
| 822 | #ifdef USE_MOTIF |
| 823 | { |
| 824 | Arg al[2]; |
| 825 | WidgetList list; |
| 826 | Cardinal nr; |
| 827 | XtSetArg (al[0], XtNchildren, &list); |
| 828 | XtSetArg (al[1], XtNnumChildren, &nr); |
| 829 | XtGetValues (menubar, al, 2); |
| 830 | ev.xbutton.window = XtWindow (list[0]); |
| 831 | } |
| 832 | #endif |
| 833 | |
| 834 | XTranslateCoordinates (FRAME_X_DISPLAY (f), |
| 835 | /* From-window, to-window. */ |
| 836 | ev.xbutton.window, ev.xbutton.root, |
| 837 | |
| 838 | /* From-position, to-position. */ |
| 839 | ev.xbutton.x, ev.xbutton.y, |
| 840 | &ev.xbutton.x_root, &ev.xbutton.y_root, |
| 841 | |
| 842 | /* Child of win. */ |
| 843 | &child); |
| 844 | error_p = x_had_errors_p (FRAME_X_DISPLAY (f)); |
| 845 | x_uncatch_errors (); |
| 846 | |
| 847 | if (! error_p) |
| 848 | { |
| 849 | ev.type = ButtonPress; |
| 850 | ev.xbutton.state = 0; |
| 851 | |
| 852 | XtDispatchEvent (&ev); |
| 853 | ev.xbutton.type = ButtonRelease; |
| 854 | ev.xbutton.state = Button1Mask; |
| 855 | XtDispatchEvent (&ev); |
| 856 | } |
| 857 | } |
| 858 | |
| 859 | UNBLOCK_INPUT; |
| 860 | |
| 861 | return Qnil; |
| 862 | } |
| 863 | #endif /* USE_X_TOOLKIT */ |
| 864 | |
| 865 | |
| 866 | #ifdef USE_GTK |
| 867 | DEFUN ("x-menu-bar-open-internal", Fx_menu_bar_open_internal, Sx_menu_bar_open_internal, 0, 1, "i", |
| 868 | doc: /* Start key navigation of the menu bar in FRAME. |
| 869 | This initially opens the first menu bar item and you can then navigate with the |
| 870 | arrow keys, select a menu entry with the return key or cancel with the |
| 871 | escape key. If FRAME has no menu bar this function does nothing. |
| 872 | |
| 873 | If FRAME is nil or not given, use the selected frame. */) |
| 874 | (frame) |
| 875 | Lisp_Object frame; |
| 876 | { |
| 877 | GtkWidget *menubar; |
| 878 | FRAME_PTR f; |
| 879 | |
| 880 | /* gcc 2.95 doesn't accept the FRAME_PTR declaration after |
| 881 | BLOCK_INPUT. */ |
| 882 | |
| 883 | BLOCK_INPUT; |
| 884 | f = check_x_frame (frame); |
| 885 | |
| 886 | if (FRAME_EXTERNAL_MENU_BAR (f)) |
| 887 | set_frame_menubar (f, 0, 1); |
| 888 | |
| 889 | menubar = FRAME_X_OUTPUT (f)->menubar_widget; |
| 890 | if (menubar) |
| 891 | { |
| 892 | /* Activate the first menu. */ |
| 893 | GList *children = gtk_container_get_children (GTK_CONTAINER (menubar)); |
| 894 | |
| 895 | if (children) |
| 896 | { |
| 897 | g_signal_emit_by_name (children->data, "activate_item"); |
| 898 | popup_activated_flag = 1; |
| 899 | g_list_free (children); |
| 900 | } |
| 901 | } |
| 902 | UNBLOCK_INPUT; |
| 903 | |
| 904 | return Qnil; |
| 905 | } |
| 906 | |
| 907 | /* Loop util popup_activated_flag is set to zero in a callback. |
| 908 | Used for popup menus and dialogs. */ |
| 909 | |
| 910 | static void |
| 911 | popup_widget_loop (do_timers, widget) |
| 912 | int do_timers; |
| 913 | GtkWidget *widget; |
| 914 | { |
| 915 | ++popup_activated_flag; |
| 916 | |
| 917 | /* Process events in the Gtk event loop until done. */ |
| 918 | while (popup_activated_flag) |
| 919 | { |
| 920 | if (do_timers) x_menu_wait_for_event (0); |
| 921 | gtk_main_iteration (); |
| 922 | } |
| 923 | } |
| 924 | #endif |
| 925 | |
| 926 | /* Activate the menu bar of frame F. |
| 927 | This is called from keyboard.c when it gets the |
| 928 | MENU_BAR_ACTIVATE_EVENT out of the Emacs event queue. |
| 929 | |
| 930 | To activate the menu bar, we use the X button-press event |
| 931 | that was saved in saved_menu_event. |
| 932 | That makes the toolkit do its thing. |
| 933 | |
| 934 | But first we recompute the menu bar contents (the whole tree). |
| 935 | |
| 936 | The reason for saving the button event until here, instead of |
| 937 | passing it to the toolkit right away, is that we can safely |
| 938 | execute Lisp code. */ |
| 939 | |
| 940 | void |
| 941 | x_activate_menubar (f) |
| 942 | FRAME_PTR f; |
| 943 | { |
| 944 | if (! FRAME_X_P (f)) |
| 945 | abort (); |
| 946 | |
| 947 | if (!f->output_data.x->saved_menu_event->type) |
| 948 | return; |
| 949 | |
| 950 | #ifdef USE_GTK |
| 951 | if (! xg_win_to_widget (FRAME_X_DISPLAY (f), |
| 952 | f->output_data.x->saved_menu_event->xany.window)) |
| 953 | return; |
| 954 | #endif |
| 955 | |
| 956 | set_frame_menubar (f, 0, 1); |
| 957 | BLOCK_INPUT; |
| 958 | #ifdef USE_GTK |
| 959 | XPutBackEvent (f->output_data.x->display_info->display, |
| 960 | f->output_data.x->saved_menu_event); |
| 961 | popup_activated_flag = 1; |
| 962 | #else |
| 963 | XtDispatchEvent (f->output_data.x->saved_menu_event); |
| 964 | #endif |
| 965 | UNBLOCK_INPUT; |
| 966 | #ifdef USE_MOTIF |
| 967 | if (f->output_data.x->saved_menu_event->type == ButtonRelease) |
| 968 | pending_menu_activation = 1; |
| 969 | #endif |
| 970 | |
| 971 | /* Ignore this if we get it a second time. */ |
| 972 | f->output_data.x->saved_menu_event->type = 0; |
| 973 | } |
| 974 | |
| 975 | /* This callback is invoked when the user selects a menubar cascade |
| 976 | pushbutton, but before the pulldown menu is posted. */ |
| 977 | |
| 978 | #ifndef USE_GTK |
| 979 | static void |
| 980 | popup_activate_callback (widget, id, client_data) |
| 981 | Widget widget; |
| 982 | LWLIB_ID id; |
| 983 | XtPointer client_data; |
| 984 | { |
| 985 | popup_activated_flag = 1; |
| 986 | #ifdef USE_X_TOOLKIT |
| 987 | x_activate_timeout_atimer (); |
| 988 | #endif |
| 989 | } |
| 990 | #endif |
| 991 | |
| 992 | /* This callback is invoked when a dialog or menu is finished being |
| 993 | used and has been unposted. */ |
| 994 | |
| 995 | #ifdef USE_GTK |
| 996 | static void |
| 997 | popup_deactivate_callback (widget, client_data) |
| 998 | GtkWidget *widget; |
| 999 | gpointer client_data; |
| 1000 | { |
| 1001 | popup_activated_flag = 0; |
| 1002 | } |
| 1003 | #else |
| 1004 | static void |
| 1005 | popup_deactivate_callback (widget, id, client_data) |
| 1006 | Widget widget; |
| 1007 | LWLIB_ID id; |
| 1008 | XtPointer client_data; |
| 1009 | { |
| 1010 | popup_activated_flag = 0; |
| 1011 | } |
| 1012 | #endif |
| 1013 | |
| 1014 | |
| 1015 | /* Function that finds the frame for WIDGET and shows the HELP text |
| 1016 | for that widget. |
| 1017 | F is the frame if known, or NULL if not known. */ |
| 1018 | static void |
| 1019 | show_help_event (f, widget, help) |
| 1020 | FRAME_PTR f; |
| 1021 | xt_or_gtk_widget widget; |
| 1022 | Lisp_Object help; |
| 1023 | { |
| 1024 | Lisp_Object frame; |
| 1025 | |
| 1026 | if (f) |
| 1027 | { |
| 1028 | XSETFRAME (frame, f); |
| 1029 | kbd_buffer_store_help_event (frame, help); |
| 1030 | } |
| 1031 | else |
| 1032 | { |
| 1033 | #if 0 /* This code doesn't do anything useful. ++kfs */ |
| 1034 | /* WIDGET is the popup menu. It's parent is the frame's |
| 1035 | widget. See which frame that is. */ |
| 1036 | xt_or_gtk_widget frame_widget = XtParent (widget); |
| 1037 | Lisp_Object tail; |
| 1038 | |
| 1039 | for (tail = Vframe_list; CONSP (tail); tail = XCDR (tail)) |
| 1040 | { |
| 1041 | frame = XCAR (tail); |
| 1042 | if (FRAMEP (frame) |
| 1043 | && (f = XFRAME (frame), |
| 1044 | FRAME_X_P (f) && f->output_data.x->widget == frame_widget)) |
| 1045 | break; |
| 1046 | } |
| 1047 | #endif |
| 1048 | show_help_echo (help, Qnil, Qnil, Qnil, 1); |
| 1049 | } |
| 1050 | } |
| 1051 | |
| 1052 | /* Callback called when menu items are highlighted/unhighlighted |
| 1053 | while moving the mouse over them. WIDGET is the menu bar or menu |
| 1054 | popup widget. ID is its LWLIB_ID. CALL_DATA contains a pointer to |
| 1055 | the data structure for the menu item, or null in case of |
| 1056 | unhighlighting. */ |
| 1057 | |
| 1058 | #ifdef USE_GTK |
| 1059 | void |
| 1060 | menu_highlight_callback (widget, call_data) |
| 1061 | GtkWidget *widget; |
| 1062 | gpointer call_data; |
| 1063 | { |
| 1064 | xg_menu_item_cb_data *cb_data; |
| 1065 | Lisp_Object help; |
| 1066 | |
| 1067 | cb_data = (xg_menu_item_cb_data*) g_object_get_data (G_OBJECT (widget), |
| 1068 | XG_ITEM_DATA); |
| 1069 | if (! cb_data) return; |
| 1070 | |
| 1071 | help = call_data ? cb_data->help : Qnil; |
| 1072 | |
| 1073 | /* If popup_activated_flag is greater than 1 we are in a popup menu. |
| 1074 | Don't show help for them, they won't appear before the |
| 1075 | popup is popped down. */ |
| 1076 | if (popup_activated_flag <= 1) |
| 1077 | show_help_event (cb_data->cl_data->f, widget, help); |
| 1078 | } |
| 1079 | #else |
| 1080 | void |
| 1081 | menu_highlight_callback (widget, id, call_data) |
| 1082 | Widget widget; |
| 1083 | LWLIB_ID id; |
| 1084 | void *call_data; |
| 1085 | { |
| 1086 | struct frame *f; |
| 1087 | Lisp_Object help; |
| 1088 | |
| 1089 | widget_value *wv = (widget_value *) call_data; |
| 1090 | |
| 1091 | help = wv ? wv->help : Qnil; |
| 1092 | |
| 1093 | /* Determine the frame for the help event. */ |
| 1094 | f = menubar_id_to_frame (id); |
| 1095 | |
| 1096 | show_help_event (f, widget, help); |
| 1097 | } |
| 1098 | #endif |
| 1099 | |
| 1100 | #ifdef USE_GTK |
| 1101 | /* Gtk calls callbacks just because we tell it what item should be |
| 1102 | selected in a radio group. If this variable is set to a non-zero |
| 1103 | value, we are creating menus and don't want callbacks right now. |
| 1104 | */ |
| 1105 | static int xg_crazy_callback_abort; |
| 1106 | |
| 1107 | /* This callback is called from the menu bar pulldown menu |
| 1108 | when the user makes a selection. |
| 1109 | Figure out what the user chose |
| 1110 | and put the appropriate events into the keyboard buffer. */ |
| 1111 | static void |
| 1112 | menubar_selection_callback (widget, client_data) |
| 1113 | GtkWidget *widget; |
| 1114 | gpointer client_data; |
| 1115 | { |
| 1116 | xg_menu_item_cb_data *cb_data = (xg_menu_item_cb_data*) client_data; |
| 1117 | |
| 1118 | if (xg_crazy_callback_abort) |
| 1119 | return; |
| 1120 | |
| 1121 | if (! cb_data || ! cb_data->cl_data || ! cb_data->cl_data->f) |
| 1122 | return; |
| 1123 | |
| 1124 | /* For a group of radio buttons, GTK calls the selection callback first |
| 1125 | for the item that was active before the selection and then for the one that |
| 1126 | is active after the selection. For C-h k this means we get the help on |
| 1127 | the deselected item and then the selected item is executed. Prevent that |
| 1128 | by ignoring the non-active item. */ |
| 1129 | if (GTK_IS_RADIO_MENU_ITEM (widget) |
| 1130 | && ! gtk_check_menu_item_get_active (GTK_CHECK_MENU_ITEM (widget))) |
| 1131 | return; |
| 1132 | |
| 1133 | /* When a menu is popped down, X generates a focus event (i.e. focus |
| 1134 | goes back to the frame below the menu). Since GTK buffers events, |
| 1135 | we force it out here before the menu selection event. Otherwise |
| 1136 | sit-for will exit at once if the focus event follows the menu selection |
| 1137 | event. */ |
| 1138 | |
| 1139 | BLOCK_INPUT; |
| 1140 | while (gtk_events_pending ()) |
| 1141 | gtk_main_iteration (); |
| 1142 | UNBLOCK_INPUT; |
| 1143 | |
| 1144 | find_and_call_menu_selection (cb_data->cl_data->f, |
| 1145 | cb_data->cl_data->menu_bar_items_used, |
| 1146 | cb_data->cl_data->menu_bar_vector, |
| 1147 | cb_data->call_data); |
| 1148 | } |
| 1149 | |
| 1150 | #else /* not USE_GTK */ |
| 1151 | |
| 1152 | /* This callback is called from the menu bar pulldown menu |
| 1153 | when the user makes a selection. |
| 1154 | Figure out what the user chose |
| 1155 | and put the appropriate events into the keyboard buffer. */ |
| 1156 | static void |
| 1157 | menubar_selection_callback (widget, id, client_data) |
| 1158 | Widget widget; |
| 1159 | LWLIB_ID id; |
| 1160 | XtPointer client_data; |
| 1161 | { |
| 1162 | FRAME_PTR f; |
| 1163 | |
| 1164 | f = menubar_id_to_frame (id); |
| 1165 | if (!f) |
| 1166 | return; |
| 1167 | find_and_call_menu_selection (f, f->menu_bar_items_used, |
| 1168 | f->menu_bar_vector, client_data); |
| 1169 | } |
| 1170 | #endif /* not USE_GTK */ |
| 1171 | \f |
| 1172 | /* Recompute all the widgets of frame F, when the menu bar has been |
| 1173 | changed. Value is non-zero if widgets were updated. */ |
| 1174 | |
| 1175 | static int |
| 1176 | update_frame_menubar (f) |
| 1177 | FRAME_PTR f; |
| 1178 | { |
| 1179 | #ifdef USE_GTK |
| 1180 | return xg_update_frame_menubar (f); |
| 1181 | #else |
| 1182 | struct x_output *x; |
| 1183 | int columns, rows; |
| 1184 | |
| 1185 | if (! FRAME_X_P (f)) |
| 1186 | abort (); |
| 1187 | |
| 1188 | x = f->output_data.x; |
| 1189 | |
| 1190 | if (!x->menubar_widget || XtIsManaged (x->menubar_widget)) |
| 1191 | return 0; |
| 1192 | |
| 1193 | BLOCK_INPUT; |
| 1194 | /* Save the size of the frame because the pane widget doesn't accept |
| 1195 | to resize itself. So force it. */ |
| 1196 | columns = FRAME_COLS (f); |
| 1197 | rows = FRAME_LINES (f); |
| 1198 | |
| 1199 | /* Do the voodoo which means "I'm changing lots of things, don't try |
| 1200 | to refigure sizes until I'm done." */ |
| 1201 | lw_refigure_widget (x->column_widget, False); |
| 1202 | |
| 1203 | /* The order in which children are managed is the top to bottom |
| 1204 | order in which they are displayed in the paned window. First, |
| 1205 | remove the text-area widget. */ |
| 1206 | XtUnmanageChild (x->edit_widget); |
| 1207 | |
| 1208 | /* Remove the menubar that is there now, and put up the menubar that |
| 1209 | should be there. */ |
| 1210 | XtManageChild (x->menubar_widget); |
| 1211 | XtMapWidget (x->menubar_widget); |
| 1212 | XtVaSetValues (x->menubar_widget, XtNmappedWhenManaged, 1, NULL); |
| 1213 | |
| 1214 | /* Re-manage the text-area widget, and then thrash the sizes. */ |
| 1215 | XtManageChild (x->edit_widget); |
| 1216 | lw_refigure_widget (x->column_widget, True); |
| 1217 | |
| 1218 | /* Force the pane widget to resize itself with the right values. */ |
| 1219 | EmacsFrameSetCharSize (x->edit_widget, columns, rows); |
| 1220 | UNBLOCK_INPUT; |
| 1221 | #endif |
| 1222 | return 1; |
| 1223 | } |
| 1224 | |
| 1225 | /* Set the contents of the menubar widgets of frame F. |
| 1226 | The argument FIRST_TIME is currently ignored; |
| 1227 | it is set the first time this is called, from initialize_frame_menubar. */ |
| 1228 | |
| 1229 | void |
| 1230 | set_frame_menubar (f, first_time, deep_p) |
| 1231 | FRAME_PTR f; |
| 1232 | int first_time; |
| 1233 | int deep_p; |
| 1234 | { |
| 1235 | xt_or_gtk_widget menubar_widget; |
| 1236 | #ifdef USE_X_TOOLKIT |
| 1237 | LWLIB_ID id; |
| 1238 | #endif |
| 1239 | Lisp_Object items; |
| 1240 | widget_value *wv, *first_wv, *prev_wv = 0; |
| 1241 | int i, last_i = 0; |
| 1242 | int *submenu_start, *submenu_end; |
| 1243 | int *submenu_top_level_items, *submenu_n_panes; |
| 1244 | |
| 1245 | if (! FRAME_X_P (f)) |
| 1246 | abort (); |
| 1247 | |
| 1248 | menubar_widget = f->output_data.x->menubar_widget; |
| 1249 | |
| 1250 | XSETFRAME (Vmenu_updating_frame, f); |
| 1251 | |
| 1252 | #ifdef USE_X_TOOLKIT |
| 1253 | if (f->output_data.x->id == 0) |
| 1254 | f->output_data.x->id = next_menubar_widget_id++; |
| 1255 | id = f->output_data.x->id; |
| 1256 | #endif |
| 1257 | |
| 1258 | if (! menubar_widget) |
| 1259 | deep_p = 1; |
| 1260 | else if (pending_menu_activation && !deep_p) |
| 1261 | deep_p = 1; |
| 1262 | /* Make the first call for any given frame always go deep. */ |
| 1263 | else if (!f->output_data.x->saved_menu_event && !deep_p) |
| 1264 | { |
| 1265 | deep_p = 1; |
| 1266 | f->output_data.x->saved_menu_event = (XEvent*)xmalloc (sizeof (XEvent)); |
| 1267 | f->output_data.x->saved_menu_event->type = 0; |
| 1268 | } |
| 1269 | |
| 1270 | #ifdef USE_GTK |
| 1271 | /* If we have detached menus, we must update deep so detached menus |
| 1272 | also gets updated. */ |
| 1273 | deep_p = deep_p || xg_have_tear_offs (); |
| 1274 | #endif |
| 1275 | |
| 1276 | if (deep_p) |
| 1277 | { |
| 1278 | /* Make a widget-value tree representing the entire menu trees. */ |
| 1279 | |
| 1280 | struct buffer *prev = current_buffer; |
| 1281 | Lisp_Object buffer; |
| 1282 | int specpdl_count = SPECPDL_INDEX (); |
| 1283 | int previous_menu_items_used = f->menu_bar_items_used; |
| 1284 | Lisp_Object *previous_items |
| 1285 | = (Lisp_Object *) alloca (previous_menu_items_used |
| 1286 | * sizeof (Lisp_Object)); |
| 1287 | |
| 1288 | /* If we are making a new widget, its contents are empty, |
| 1289 | do always reinitialize them. */ |
| 1290 | if (! menubar_widget) |
| 1291 | previous_menu_items_used = 0; |
| 1292 | |
| 1293 | buffer = XWINDOW (FRAME_SELECTED_WINDOW (f))->buffer; |
| 1294 | specbind (Qinhibit_quit, Qt); |
| 1295 | /* Don't let the debugger step into this code |
| 1296 | because it is not reentrant. */ |
| 1297 | specbind (Qdebug_on_next_call, Qnil); |
| 1298 | |
| 1299 | record_unwind_save_match_data (); |
| 1300 | if (NILP (Voverriding_local_map_menu_flag)) |
| 1301 | { |
| 1302 | specbind (Qoverriding_terminal_local_map, Qnil); |
| 1303 | specbind (Qoverriding_local_map, Qnil); |
| 1304 | } |
| 1305 | |
| 1306 | set_buffer_internal_1 (XBUFFER (buffer)); |
| 1307 | |
| 1308 | /* Run the Lucid hook. */ |
| 1309 | safe_run_hooks (Qactivate_menubar_hook); |
| 1310 | |
| 1311 | /* If it has changed current-menubar from previous value, |
| 1312 | really recompute the menubar from the value. */ |
| 1313 | if (! NILP (Vlucid_menu_bar_dirty_flag)) |
| 1314 | call0 (Qrecompute_lucid_menubar); |
| 1315 | safe_run_hooks (Qmenu_bar_update_hook); |
| 1316 | FRAME_MENU_BAR_ITEMS (f) = menu_bar_items (FRAME_MENU_BAR_ITEMS (f)); |
| 1317 | |
| 1318 | items = FRAME_MENU_BAR_ITEMS (f); |
| 1319 | |
| 1320 | /* Save the frame's previous menu bar contents data. */ |
| 1321 | if (previous_menu_items_used) |
| 1322 | bcopy (XVECTOR (f->menu_bar_vector)->contents, previous_items, |
| 1323 | previous_menu_items_used * sizeof (Lisp_Object)); |
| 1324 | |
| 1325 | /* Fill in menu_items with the current menu bar contents. |
| 1326 | This can evaluate Lisp code. */ |
| 1327 | save_menu_items (); |
| 1328 | |
| 1329 | menu_items = f->menu_bar_vector; |
| 1330 | menu_items_allocated = VECTORP (menu_items) ? ASIZE (menu_items) : 0; |
| 1331 | submenu_start = (int *) alloca (XVECTOR (items)->size * sizeof (int *)); |
| 1332 | submenu_end = (int *) alloca (XVECTOR (items)->size * sizeof (int *)); |
| 1333 | submenu_n_panes = (int *) alloca (XVECTOR (items)->size * sizeof (int)); |
| 1334 | submenu_top_level_items |
| 1335 | = (int *) alloca (XVECTOR (items)->size * sizeof (int *)); |
| 1336 | init_menu_items (); |
| 1337 | for (i = 0; i < XVECTOR (items)->size; i += 4) |
| 1338 | { |
| 1339 | Lisp_Object key, string, maps; |
| 1340 | |
| 1341 | last_i = i; |
| 1342 | |
| 1343 | key = XVECTOR (items)->contents[i]; |
| 1344 | string = XVECTOR (items)->contents[i + 1]; |
| 1345 | maps = XVECTOR (items)->contents[i + 2]; |
| 1346 | if (NILP (string)) |
| 1347 | break; |
| 1348 | |
| 1349 | submenu_start[i] = menu_items_used; |
| 1350 | |
| 1351 | menu_items_n_panes = 0; |
| 1352 | submenu_top_level_items[i] |
| 1353 | = parse_single_submenu (key, string, maps); |
| 1354 | submenu_n_panes[i] = menu_items_n_panes; |
| 1355 | |
| 1356 | submenu_end[i] = menu_items_used; |
| 1357 | } |
| 1358 | |
| 1359 | finish_menu_items (); |
| 1360 | |
| 1361 | /* Convert menu_items into widget_value trees |
| 1362 | to display the menu. This cannot evaluate Lisp code. */ |
| 1363 | |
| 1364 | wv = xmalloc_widget_value (); |
| 1365 | wv->name = "menubar"; |
| 1366 | wv->value = 0; |
| 1367 | wv->enabled = 1; |
| 1368 | wv->button_type = BUTTON_TYPE_NONE; |
| 1369 | wv->help = Qnil; |
| 1370 | first_wv = wv; |
| 1371 | |
| 1372 | for (i = 0; i < last_i; i += 4) |
| 1373 | { |
| 1374 | menu_items_n_panes = submenu_n_panes[i]; |
| 1375 | wv = digest_single_submenu (submenu_start[i], submenu_end[i], |
| 1376 | submenu_top_level_items[i]); |
| 1377 | if (prev_wv) |
| 1378 | prev_wv->next = wv; |
| 1379 | else |
| 1380 | first_wv->contents = wv; |
| 1381 | /* Don't set wv->name here; GC during the loop might relocate it. */ |
| 1382 | wv->enabled = 1; |
| 1383 | wv->button_type = BUTTON_TYPE_NONE; |
| 1384 | prev_wv = wv; |
| 1385 | } |
| 1386 | |
| 1387 | set_buffer_internal_1 (prev); |
| 1388 | |
| 1389 | /* If there has been no change in the Lisp-level contents |
| 1390 | of the menu bar, skip redisplaying it. Just exit. */ |
| 1391 | |
| 1392 | /* Compare the new menu items with the ones computed last time. */ |
| 1393 | for (i = 0; i < previous_menu_items_used; i++) |
| 1394 | if (menu_items_used == i |
| 1395 | || (!EQ (previous_items[i], XVECTOR (menu_items)->contents[i]))) |
| 1396 | break; |
| 1397 | if (i == menu_items_used && i == previous_menu_items_used && i != 0) |
| 1398 | { |
| 1399 | /* The menu items have not changed. Don't bother updating |
| 1400 | the menus in any form, since it would be a no-op. */ |
| 1401 | free_menubar_widget_value_tree (first_wv); |
| 1402 | discard_menu_items (); |
| 1403 | unbind_to (specpdl_count, Qnil); |
| 1404 | return; |
| 1405 | } |
| 1406 | |
| 1407 | /* The menu items are different, so store them in the frame. */ |
| 1408 | f->menu_bar_vector = menu_items; |
| 1409 | f->menu_bar_items_used = menu_items_used; |
| 1410 | |
| 1411 | /* This undoes save_menu_items. */ |
| 1412 | unbind_to (specpdl_count, Qnil); |
| 1413 | |
| 1414 | /* Now GC cannot happen during the lifetime of the widget_value, |
| 1415 | so it's safe to store data from a Lisp_String. */ |
| 1416 | wv = first_wv->contents; |
| 1417 | for (i = 0; i < XVECTOR (items)->size; i += 4) |
| 1418 | { |
| 1419 | Lisp_Object string; |
| 1420 | string = XVECTOR (items)->contents[i + 1]; |
| 1421 | if (NILP (string)) |
| 1422 | break; |
| 1423 | wv->name = (char *) SDATA (string); |
| 1424 | update_submenu_strings (wv->contents); |
| 1425 | wv = wv->next; |
| 1426 | } |
| 1427 | |
| 1428 | } |
| 1429 | else |
| 1430 | { |
| 1431 | /* Make a widget-value tree containing |
| 1432 | just the top level menu bar strings. */ |
| 1433 | |
| 1434 | wv = xmalloc_widget_value (); |
| 1435 | wv->name = "menubar"; |
| 1436 | wv->value = 0; |
| 1437 | wv->enabled = 1; |
| 1438 | wv->button_type = BUTTON_TYPE_NONE; |
| 1439 | wv->help = Qnil; |
| 1440 | first_wv = wv; |
| 1441 | |
| 1442 | items = FRAME_MENU_BAR_ITEMS (f); |
| 1443 | for (i = 0; i < XVECTOR (items)->size; i += 4) |
| 1444 | { |
| 1445 | Lisp_Object string; |
| 1446 | |
| 1447 | string = XVECTOR (items)->contents[i + 1]; |
| 1448 | if (NILP (string)) |
| 1449 | break; |
| 1450 | |
| 1451 | wv = xmalloc_widget_value (); |
| 1452 | wv->name = (char *) SDATA (string); |
| 1453 | wv->value = 0; |
| 1454 | wv->enabled = 1; |
| 1455 | wv->button_type = BUTTON_TYPE_NONE; |
| 1456 | wv->help = Qnil; |
| 1457 | /* This prevents lwlib from assuming this |
| 1458 | menu item is really supposed to be empty. */ |
| 1459 | /* The EMACS_INT cast avoids a warning. |
| 1460 | This value just has to be different from small integers. */ |
| 1461 | wv->call_data = (void *) (EMACS_INT) (-1); |
| 1462 | |
| 1463 | if (prev_wv) |
| 1464 | prev_wv->next = wv; |
| 1465 | else |
| 1466 | first_wv->contents = wv; |
| 1467 | prev_wv = wv; |
| 1468 | } |
| 1469 | |
| 1470 | /* Forget what we thought we knew about what is in the |
| 1471 | detailed contents of the menu bar menus. |
| 1472 | Changing the top level always destroys the contents. */ |
| 1473 | f->menu_bar_items_used = 0; |
| 1474 | } |
| 1475 | |
| 1476 | /* Create or update the menu bar widget. */ |
| 1477 | |
| 1478 | BLOCK_INPUT; |
| 1479 | |
| 1480 | #ifdef USE_GTK |
| 1481 | xg_crazy_callback_abort = 1; |
| 1482 | if (menubar_widget) |
| 1483 | { |
| 1484 | /* The fourth arg is DEEP_P, which says to consider the entire |
| 1485 | menu trees we supply, rather than just the menu bar item names. */ |
| 1486 | xg_modify_menubar_widgets (menubar_widget, |
| 1487 | f, |
| 1488 | first_wv, |
| 1489 | deep_p, |
| 1490 | G_CALLBACK (menubar_selection_callback), |
| 1491 | G_CALLBACK (popup_deactivate_callback), |
| 1492 | G_CALLBACK (menu_highlight_callback)); |
| 1493 | } |
| 1494 | else |
| 1495 | { |
| 1496 | GtkWidget *wvbox = f->output_data.x->vbox_widget; |
| 1497 | |
| 1498 | menubar_widget |
| 1499 | = xg_create_widget ("menubar", "menubar", f, first_wv, |
| 1500 | G_CALLBACK (menubar_selection_callback), |
| 1501 | G_CALLBACK (popup_deactivate_callback), |
| 1502 | G_CALLBACK (menu_highlight_callback)); |
| 1503 | |
| 1504 | f->output_data.x->menubar_widget = menubar_widget; |
| 1505 | } |
| 1506 | |
| 1507 | |
| 1508 | #else /* not USE_GTK */ |
| 1509 | if (menubar_widget) |
| 1510 | { |
| 1511 | /* Disable resizing (done for Motif!) */ |
| 1512 | lw_allow_resizing (f->output_data.x->widget, False); |
| 1513 | |
| 1514 | /* The third arg is DEEP_P, which says to consider the entire |
| 1515 | menu trees we supply, rather than just the menu bar item names. */ |
| 1516 | lw_modify_all_widgets (id, first_wv, deep_p); |
| 1517 | |
| 1518 | /* Re-enable the edit widget to resize. */ |
| 1519 | lw_allow_resizing (f->output_data.x->widget, True); |
| 1520 | } |
| 1521 | else |
| 1522 | { |
| 1523 | char menuOverride[] = "Ctrl<KeyPress>g: MenuGadgetEscape()"; |
| 1524 | XtTranslations override = XtParseTranslationTable (menuOverride); |
| 1525 | |
| 1526 | menubar_widget = lw_create_widget ("menubar", "menubar", id, first_wv, |
| 1527 | f->output_data.x->column_widget, |
| 1528 | 0, |
| 1529 | popup_activate_callback, |
| 1530 | menubar_selection_callback, |
| 1531 | popup_deactivate_callback, |
| 1532 | menu_highlight_callback); |
| 1533 | f->output_data.x->menubar_widget = menubar_widget; |
| 1534 | |
| 1535 | /* Make menu pop down on C-g. */ |
| 1536 | XtOverrideTranslations (menubar_widget, override); |
| 1537 | } |
| 1538 | |
| 1539 | { |
| 1540 | int menubar_size |
| 1541 | = (f->output_data.x->menubar_widget |
| 1542 | ? (f->output_data.x->menubar_widget->core.height |
| 1543 | + f->output_data.x->menubar_widget->core.border_width) |
| 1544 | : 0); |
| 1545 | |
| 1546 | #if 0 /* Experimentally, we now get the right results |
| 1547 | for -geometry -0-0 without this. 24 Aug 96, rms. */ |
| 1548 | #ifdef USE_LUCID |
| 1549 | if (FRAME_EXTERNAL_MENU_BAR (f)) |
| 1550 | { |
| 1551 | Dimension ibw = 0; |
| 1552 | XtVaGetValues (f->output_data.x->column_widget, |
| 1553 | XtNinternalBorderWidth, &ibw, NULL); |
| 1554 | menubar_size += ibw; |
| 1555 | } |
| 1556 | #endif /* USE_LUCID */ |
| 1557 | #endif /* 0 */ |
| 1558 | |
| 1559 | f->output_data.x->menubar_height = menubar_size; |
| 1560 | } |
| 1561 | #endif /* not USE_GTK */ |
| 1562 | |
| 1563 | free_menubar_widget_value_tree (first_wv); |
| 1564 | update_frame_menubar (f); |
| 1565 | |
| 1566 | #ifdef USE_GTK |
| 1567 | xg_crazy_callback_abort = 0; |
| 1568 | #endif |
| 1569 | |
| 1570 | UNBLOCK_INPUT; |
| 1571 | } |
| 1572 | |
| 1573 | /* Called from Fx_create_frame to create the initial menubar of a frame |
| 1574 | before it is mapped, so that the window is mapped with the menubar already |
| 1575 | there instead of us tacking it on later and thrashing the window after it |
| 1576 | is visible. */ |
| 1577 | |
| 1578 | void |
| 1579 | initialize_frame_menubar (f) |
| 1580 | FRAME_PTR f; |
| 1581 | { |
| 1582 | /* This function is called before the first chance to redisplay |
| 1583 | the frame. It has to be, so the frame will have the right size. */ |
| 1584 | FRAME_MENU_BAR_ITEMS (f) = menu_bar_items (FRAME_MENU_BAR_ITEMS (f)); |
| 1585 | set_frame_menubar (f, 1, 1); |
| 1586 | } |
| 1587 | |
| 1588 | |
| 1589 | /* Get rid of the menu bar of frame F, and free its storage. |
| 1590 | This is used when deleting a frame, and when turning off the menu bar. |
| 1591 | For GTK this function is in gtkutil.c. */ |
| 1592 | |
| 1593 | #ifndef USE_GTK |
| 1594 | void |
| 1595 | free_frame_menubar (f) |
| 1596 | FRAME_PTR f; |
| 1597 | { |
| 1598 | Widget menubar_widget; |
| 1599 | |
| 1600 | if (! FRAME_X_P (f)) |
| 1601 | abort (); |
| 1602 | |
| 1603 | menubar_widget = f->output_data.x->menubar_widget; |
| 1604 | |
| 1605 | f->output_data.x->menubar_height = 0; |
| 1606 | |
| 1607 | if (menubar_widget) |
| 1608 | { |
| 1609 | #ifdef USE_MOTIF |
| 1610 | /* Removing the menu bar magically changes the shell widget's x |
| 1611 | and y position of (0, 0) which, when the menu bar is turned |
| 1612 | on again, leads to pull-down menuss appearing in strange |
| 1613 | positions near the upper-left corner of the display. This |
| 1614 | happens only with some window managers like twm and ctwm, |
| 1615 | but not with other like Motif's mwm or kwm, because the |
| 1616 | latter generate ConfigureNotify events when the menu bar |
| 1617 | is switched off, which fixes the shell position. */ |
| 1618 | Position x0, y0, x1, y1; |
| 1619 | #endif |
| 1620 | |
| 1621 | BLOCK_INPUT; |
| 1622 | |
| 1623 | #ifdef USE_MOTIF |
| 1624 | if (f->output_data.x->widget) |
| 1625 | XtVaGetValues (f->output_data.x->widget, XtNx, &x0, XtNy, &y0, NULL); |
| 1626 | #endif |
| 1627 | |
| 1628 | lw_destroy_all_widgets ((LWLIB_ID) f->output_data.x->id); |
| 1629 | f->output_data.x->menubar_widget = NULL; |
| 1630 | |
| 1631 | #ifdef USE_MOTIF |
| 1632 | if (f->output_data.x->widget) |
| 1633 | { |
| 1634 | XtVaGetValues (f->output_data.x->widget, XtNx, &x1, XtNy, &y1, NULL); |
| 1635 | if (x1 == 0 && y1 == 0) |
| 1636 | XtVaSetValues (f->output_data.x->widget, XtNx, x0, XtNy, y0, NULL); |
| 1637 | } |
| 1638 | #endif |
| 1639 | |
| 1640 | UNBLOCK_INPUT; |
| 1641 | } |
| 1642 | } |
| 1643 | #endif /* not USE_GTK */ |
| 1644 | |
| 1645 | #endif /* USE_X_TOOLKIT || USE_GTK */ |
| 1646 | \f |
| 1647 | /* xmenu_show actually displays a menu using the panes and items in menu_items |
| 1648 | and returns the value selected from it. |
| 1649 | There are two versions of xmenu_show, one for Xt and one for Xlib. |
| 1650 | Both assume input is blocked by the caller. */ |
| 1651 | |
| 1652 | /* F is the frame the menu is for. |
| 1653 | X and Y are the frame-relative specified position, |
| 1654 | relative to the inside upper left corner of the frame F. |
| 1655 | FOR_CLICK is nonzero if this menu was invoked for a mouse click. |
| 1656 | KEYMAPS is 1 if this menu was specified with keymaps; |
| 1657 | in that case, we return a list containing the chosen item's value |
| 1658 | and perhaps also the pane's prefix. |
| 1659 | TITLE is the specified menu title. |
| 1660 | ERROR is a place to store an error message string in case of failure. |
| 1661 | (We return nil on failure, but the value doesn't actually matter.) */ |
| 1662 | |
| 1663 | #if defined (USE_X_TOOLKIT) || defined (USE_GTK) |
| 1664 | |
| 1665 | /* The item selected in the popup menu. */ |
| 1666 | static Lisp_Object *volatile menu_item_selection; |
| 1667 | |
| 1668 | #ifdef USE_GTK |
| 1669 | |
| 1670 | /* Used when position a popup menu. See menu_position_func and |
| 1671 | create_and_show_popup_menu below. */ |
| 1672 | struct next_popup_x_y |
| 1673 | { |
| 1674 | FRAME_PTR f; |
| 1675 | int x; |
| 1676 | int y; |
| 1677 | }; |
| 1678 | |
| 1679 | /* The menu position function to use if we are not putting a popup |
| 1680 | menu where the pointer is. |
| 1681 | MENU is the menu to pop up. |
| 1682 | X and Y shall on exit contain x/y where the menu shall pop up. |
| 1683 | PUSH_IN is not documented in the GTK manual. |
| 1684 | USER_DATA is any data passed in when calling gtk_menu_popup. |
| 1685 | Here it points to a struct next_popup_x_y where the coordinates |
| 1686 | to store in *X and *Y are as well as the frame for the popup. |
| 1687 | |
| 1688 | Here only X and Y are used. */ |
| 1689 | static void |
| 1690 | menu_position_func (menu, x, y, push_in, user_data) |
| 1691 | GtkMenu *menu; |
| 1692 | gint *x; |
| 1693 | gint *y; |
| 1694 | gboolean *push_in; |
| 1695 | gpointer user_data; |
| 1696 | { |
| 1697 | struct next_popup_x_y* data = (struct next_popup_x_y*)user_data; |
| 1698 | GtkRequisition req; |
| 1699 | struct x_display_info *dpyinfo = FRAME_X_DISPLAY_INFO (data->f); |
| 1700 | int disp_width = x_display_pixel_width (dpyinfo); |
| 1701 | int disp_height = x_display_pixel_height (dpyinfo); |
| 1702 | |
| 1703 | *x = data->x; |
| 1704 | *y = data->y; |
| 1705 | |
| 1706 | /* Check if there is room for the menu. If not, adjust x/y so that |
| 1707 | the menu is fully visible. */ |
| 1708 | gtk_widget_size_request (GTK_WIDGET (menu), &req); |
| 1709 | if (data->x + req.width > disp_width) |
| 1710 | *x -= data->x + req.width - disp_width; |
| 1711 | if (data->y + req.height > disp_height) |
| 1712 | *y -= data->y + req.height - disp_height; |
| 1713 | } |
| 1714 | |
| 1715 | static void |
| 1716 | popup_selection_callback (widget, client_data) |
| 1717 | GtkWidget *widget; |
| 1718 | gpointer client_data; |
| 1719 | { |
| 1720 | xg_menu_item_cb_data *cb_data = (xg_menu_item_cb_data*) client_data; |
| 1721 | |
| 1722 | if (xg_crazy_callback_abort) return; |
| 1723 | if (cb_data) menu_item_selection = (Lisp_Object *) cb_data->call_data; |
| 1724 | } |
| 1725 | |
| 1726 | static Lisp_Object |
| 1727 | pop_down_menu (arg) |
| 1728 | Lisp_Object arg; |
| 1729 | { |
| 1730 | struct Lisp_Save_Value *p = XSAVE_VALUE (arg); |
| 1731 | |
| 1732 | popup_activated_flag = 0; |
| 1733 | BLOCK_INPUT; |
| 1734 | gtk_widget_destroy (GTK_WIDGET (p->pointer)); |
| 1735 | UNBLOCK_INPUT; |
| 1736 | return Qnil; |
| 1737 | } |
| 1738 | |
| 1739 | /* Pop up the menu for frame F defined by FIRST_WV at X/Y and loop until the |
| 1740 | menu pops down. |
| 1741 | menu_item_selection will be set to the selection. */ |
| 1742 | static void |
| 1743 | create_and_show_popup_menu (f, first_wv, x, y, for_click) |
| 1744 | FRAME_PTR f; |
| 1745 | widget_value *first_wv; |
| 1746 | int x; |
| 1747 | int y; |
| 1748 | int for_click; |
| 1749 | { |
| 1750 | int i; |
| 1751 | GtkWidget *menu; |
| 1752 | GtkMenuPositionFunc pos_func = 0; /* Pop up at pointer. */ |
| 1753 | struct next_popup_x_y popup_x_y; |
| 1754 | int specpdl_count = SPECPDL_INDEX (); |
| 1755 | |
| 1756 | if (! FRAME_X_P (f)) |
| 1757 | abort (); |
| 1758 | |
| 1759 | xg_crazy_callback_abort = 1; |
| 1760 | menu = xg_create_widget ("popup", first_wv->name, f, first_wv, |
| 1761 | G_CALLBACK (popup_selection_callback), |
| 1762 | G_CALLBACK (popup_deactivate_callback), |
| 1763 | G_CALLBACK (menu_highlight_callback)); |
| 1764 | xg_crazy_callback_abort = 0; |
| 1765 | |
| 1766 | if (! for_click) |
| 1767 | { |
| 1768 | /* Not invoked by a click. pop up at x/y. */ |
| 1769 | pos_func = menu_position_func; |
| 1770 | |
| 1771 | /* Adjust coordinates to be root-window-relative. */ |
| 1772 | x += f->left_pos + FRAME_OUTER_TO_INNER_DIFF_X (f); |
| 1773 | y += f->top_pos + FRAME_OUTER_TO_INNER_DIFF_Y (f); |
| 1774 | |
| 1775 | popup_x_y.x = x; |
| 1776 | popup_x_y.y = y; |
| 1777 | popup_x_y.f = f; |
| 1778 | |
| 1779 | i = 0; /* gtk_menu_popup needs this to be 0 for a non-button popup. */ |
| 1780 | } |
| 1781 | else |
| 1782 | { |
| 1783 | for (i = 0; i < 5; i++) |
| 1784 | if (FRAME_X_DISPLAY_INFO (f)->grabbed & (1 << i)) |
| 1785 | break; |
| 1786 | } |
| 1787 | |
| 1788 | /* Display the menu. */ |
| 1789 | gtk_widget_show_all (menu); |
| 1790 | gtk_menu_popup (GTK_MENU (menu), 0, 0, pos_func, &popup_x_y, i, 0); |
| 1791 | |
| 1792 | record_unwind_protect (pop_down_menu, make_save_value (menu, 0)); |
| 1793 | |
| 1794 | if (GTK_WIDGET_MAPPED (menu)) |
| 1795 | { |
| 1796 | /* Set this to one. popup_widget_loop increases it by one, so it becomes |
| 1797 | two. show_help_echo uses this to detect popup menus. */ |
| 1798 | popup_activated_flag = 1; |
| 1799 | /* Process events that apply to the menu. */ |
| 1800 | popup_widget_loop (1, menu); |
| 1801 | } |
| 1802 | |
| 1803 | unbind_to (specpdl_count, Qnil); |
| 1804 | |
| 1805 | /* Must reset this manually because the button release event is not passed |
| 1806 | to Emacs event loop. */ |
| 1807 | FRAME_X_DISPLAY_INFO (f)->grabbed = 0; |
| 1808 | } |
| 1809 | |
| 1810 | #else /* not USE_GTK */ |
| 1811 | |
| 1812 | /* We need a unique id for each widget handled by the Lucid Widget |
| 1813 | library. |
| 1814 | |
| 1815 | For the main windows, and popup menus, we use this counter, |
| 1816 | which we increment each time after use. This starts from 1<<16. |
| 1817 | |
| 1818 | For menu bars, we use numbers starting at 0, counted in |
| 1819 | next_menubar_widget_id. */ |
| 1820 | LWLIB_ID widget_id_tick; |
| 1821 | |
| 1822 | static void |
| 1823 | popup_selection_callback (widget, id, client_data) |
| 1824 | Widget widget; |
| 1825 | LWLIB_ID id; |
| 1826 | XtPointer client_data; |
| 1827 | { |
| 1828 | menu_item_selection = (Lisp_Object *) client_data; |
| 1829 | } |
| 1830 | |
| 1831 | /* ARG is the LWLIB ID of the dialog box, represented |
| 1832 | as a Lisp object as (HIGHPART . LOWPART). */ |
| 1833 | |
| 1834 | static Lisp_Object |
| 1835 | pop_down_menu (arg) |
| 1836 | Lisp_Object arg; |
| 1837 | { |
| 1838 | LWLIB_ID id = (XINT (XCAR (arg)) << 4 * sizeof (LWLIB_ID) |
| 1839 | | XINT (XCDR (arg))); |
| 1840 | |
| 1841 | BLOCK_INPUT; |
| 1842 | lw_destroy_all_widgets (id); |
| 1843 | UNBLOCK_INPUT; |
| 1844 | popup_activated_flag = 0; |
| 1845 | |
| 1846 | return Qnil; |
| 1847 | } |
| 1848 | |
| 1849 | /* Pop up the menu for frame F defined by FIRST_WV at X/Y and loop until the |
| 1850 | menu pops down. |
| 1851 | menu_item_selection will be set to the selection. */ |
| 1852 | static void |
| 1853 | create_and_show_popup_menu (f, first_wv, x, y, for_click) |
| 1854 | FRAME_PTR f; |
| 1855 | widget_value *first_wv; |
| 1856 | int x; |
| 1857 | int y; |
| 1858 | int for_click; |
| 1859 | { |
| 1860 | int i; |
| 1861 | Arg av[2]; |
| 1862 | int ac = 0; |
| 1863 | XButtonPressedEvent dummy; |
| 1864 | LWLIB_ID menu_id; |
| 1865 | Widget menu; |
| 1866 | |
| 1867 | if (! FRAME_X_P (f)) |
| 1868 | abort (); |
| 1869 | |
| 1870 | menu_id = widget_id_tick++; |
| 1871 | menu = lw_create_widget ("popup", first_wv->name, menu_id, first_wv, |
| 1872 | f->output_data.x->widget, 1, 0, |
| 1873 | popup_selection_callback, |
| 1874 | popup_deactivate_callback, |
| 1875 | menu_highlight_callback); |
| 1876 | |
| 1877 | dummy.type = ButtonPress; |
| 1878 | dummy.serial = 0; |
| 1879 | dummy.send_event = 0; |
| 1880 | dummy.display = FRAME_X_DISPLAY (f); |
| 1881 | dummy.time = CurrentTime; |
| 1882 | dummy.root = FRAME_X_DISPLAY_INFO (f)->root_window; |
| 1883 | dummy.window = dummy.root; |
| 1884 | dummy.subwindow = dummy.root; |
| 1885 | dummy.x = x; |
| 1886 | dummy.y = y; |
| 1887 | |
| 1888 | /* Adjust coordinates to be root-window-relative. */ |
| 1889 | x += f->left_pos + FRAME_OUTER_TO_INNER_DIFF_X (f); |
| 1890 | y += f->top_pos + FRAME_OUTER_TO_INNER_DIFF_Y (f); |
| 1891 | |
| 1892 | dummy.x_root = x; |
| 1893 | dummy.y_root = y; |
| 1894 | |
| 1895 | dummy.state = 0; |
| 1896 | dummy.button = 0; |
| 1897 | for (i = 0; i < 5; i++) |
| 1898 | if (FRAME_X_DISPLAY_INFO (f)->grabbed & (1 << i)) |
| 1899 | dummy.button = i; |
| 1900 | |
| 1901 | /* Don't allow any geometry request from the user. */ |
| 1902 | XtSetArg (av[ac], XtNgeometry, 0); ac++; |
| 1903 | XtSetValues (menu, av, ac); |
| 1904 | |
| 1905 | /* Display the menu. */ |
| 1906 | lw_popup_menu (menu, (XEvent *) &dummy); |
| 1907 | popup_activated_flag = 1; |
| 1908 | x_activate_timeout_atimer (); |
| 1909 | |
| 1910 | { |
| 1911 | int fact = 4 * sizeof (LWLIB_ID); |
| 1912 | int specpdl_count = SPECPDL_INDEX (); |
| 1913 | record_unwind_protect (pop_down_menu, |
| 1914 | Fcons (make_number (menu_id >> (fact)), |
| 1915 | make_number (menu_id & ~(-1 << (fact))))); |
| 1916 | |
| 1917 | /* Process events that apply to the menu. */ |
| 1918 | popup_get_selection ((XEvent *) 0, FRAME_X_DISPLAY_INFO (f), menu_id, 1); |
| 1919 | |
| 1920 | unbind_to (specpdl_count, Qnil); |
| 1921 | } |
| 1922 | } |
| 1923 | |
| 1924 | #endif /* not USE_GTK */ |
| 1925 | |
| 1926 | static Lisp_Object |
| 1927 | xmenu_show (f, x, y, for_click, keymaps, title, error) |
| 1928 | FRAME_PTR f; |
| 1929 | int x; |
| 1930 | int y; |
| 1931 | int for_click; |
| 1932 | int keymaps; |
| 1933 | Lisp_Object title; |
| 1934 | char **error; |
| 1935 | { |
| 1936 | int i; |
| 1937 | widget_value *wv, *save_wv = 0, *first_wv = 0, *prev_wv = 0; |
| 1938 | widget_value **submenu_stack |
| 1939 | = (widget_value **) alloca (menu_items_used * sizeof (widget_value *)); |
| 1940 | Lisp_Object *subprefix_stack |
| 1941 | = (Lisp_Object *) alloca (menu_items_used * sizeof (Lisp_Object)); |
| 1942 | int submenu_depth = 0; |
| 1943 | |
| 1944 | int first_pane; |
| 1945 | |
| 1946 | if (! FRAME_X_P (f)) |
| 1947 | abort (); |
| 1948 | |
| 1949 | *error = NULL; |
| 1950 | |
| 1951 | if (menu_items_used <= MENU_ITEMS_PANE_LENGTH) |
| 1952 | { |
| 1953 | *error = "Empty menu"; |
| 1954 | return Qnil; |
| 1955 | } |
| 1956 | |
| 1957 | /* Create a tree of widget_value objects |
| 1958 | representing the panes and their items. */ |
| 1959 | wv = xmalloc_widget_value (); |
| 1960 | wv->name = "menu"; |
| 1961 | wv->value = 0; |
| 1962 | wv->enabled = 1; |
| 1963 | wv->button_type = BUTTON_TYPE_NONE; |
| 1964 | wv->help =Qnil; |
| 1965 | first_wv = wv; |
| 1966 | first_pane = 1; |
| 1967 | |
| 1968 | /* Loop over all panes and items, filling in the tree. */ |
| 1969 | i = 0; |
| 1970 | while (i < menu_items_used) |
| 1971 | { |
| 1972 | if (EQ (XVECTOR (menu_items)->contents[i], Qnil)) |
| 1973 | { |
| 1974 | submenu_stack[submenu_depth++] = save_wv; |
| 1975 | save_wv = prev_wv; |
| 1976 | prev_wv = 0; |
| 1977 | first_pane = 1; |
| 1978 | i++; |
| 1979 | } |
| 1980 | else if (EQ (XVECTOR (menu_items)->contents[i], Qlambda)) |
| 1981 | { |
| 1982 | prev_wv = save_wv; |
| 1983 | save_wv = submenu_stack[--submenu_depth]; |
| 1984 | first_pane = 0; |
| 1985 | i++; |
| 1986 | } |
| 1987 | else if (EQ (XVECTOR (menu_items)->contents[i], Qt) |
| 1988 | && submenu_depth != 0) |
| 1989 | i += MENU_ITEMS_PANE_LENGTH; |
| 1990 | /* Ignore a nil in the item list. |
| 1991 | It's meaningful only for dialog boxes. */ |
| 1992 | else if (EQ (XVECTOR (menu_items)->contents[i], Qquote)) |
| 1993 | i += 1; |
| 1994 | else if (EQ (XVECTOR (menu_items)->contents[i], Qt)) |
| 1995 | { |
| 1996 | /* Create a new pane. */ |
| 1997 | Lisp_Object pane_name, prefix; |
| 1998 | char *pane_string; |
| 1999 | |
| 2000 | pane_name = AREF (menu_items, i + MENU_ITEMS_PANE_NAME); |
| 2001 | prefix = AREF (menu_items, i + MENU_ITEMS_PANE_PREFIX); |
| 2002 | |
| 2003 | #ifndef HAVE_MULTILINGUAL_MENU |
| 2004 | if (STRINGP (pane_name) && STRING_MULTIBYTE (pane_name)) |
| 2005 | { |
| 2006 | pane_name = ENCODE_MENU_STRING (pane_name); |
| 2007 | ASET (menu_items, i + MENU_ITEMS_PANE_NAME, pane_name); |
| 2008 | } |
| 2009 | #endif |
| 2010 | pane_string = (NILP (pane_name) |
| 2011 | ? "" : (char *) SDATA (pane_name)); |
| 2012 | /* If there is just one top-level pane, put all its items directly |
| 2013 | under the top-level menu. */ |
| 2014 | if (menu_items_n_panes == 1) |
| 2015 | pane_string = ""; |
| 2016 | |
| 2017 | /* If the pane has a meaningful name, |
| 2018 | make the pane a top-level menu item |
| 2019 | with its items as a submenu beneath it. */ |
| 2020 | if (!keymaps && strcmp (pane_string, "")) |
| 2021 | { |
| 2022 | wv = xmalloc_widget_value (); |
| 2023 | if (save_wv) |
| 2024 | save_wv->next = wv; |
| 2025 | else |
| 2026 | first_wv->contents = wv; |
| 2027 | wv->name = pane_string; |
| 2028 | if (keymaps && !NILP (prefix)) |
| 2029 | wv->name++; |
| 2030 | wv->value = 0; |
| 2031 | wv->enabled = 1; |
| 2032 | wv->button_type = BUTTON_TYPE_NONE; |
| 2033 | wv->help = Qnil; |
| 2034 | save_wv = wv; |
| 2035 | prev_wv = 0; |
| 2036 | } |
| 2037 | else if (first_pane) |
| 2038 | { |
| 2039 | save_wv = wv; |
| 2040 | prev_wv = 0; |
| 2041 | } |
| 2042 | first_pane = 0; |
| 2043 | i += MENU_ITEMS_PANE_LENGTH; |
| 2044 | } |
| 2045 | else |
| 2046 | { |
| 2047 | /* Create a new item within current pane. */ |
| 2048 | Lisp_Object item_name, enable, descrip, def, type, selected, help; |
| 2049 | item_name = AREF (menu_items, i + MENU_ITEMS_ITEM_NAME); |
| 2050 | enable = AREF (menu_items, i + MENU_ITEMS_ITEM_ENABLE); |
| 2051 | descrip = AREF (menu_items, i + MENU_ITEMS_ITEM_EQUIV_KEY); |
| 2052 | def = AREF (menu_items, i + MENU_ITEMS_ITEM_DEFINITION); |
| 2053 | type = AREF (menu_items, i + MENU_ITEMS_ITEM_TYPE); |
| 2054 | selected = AREF (menu_items, i + MENU_ITEMS_ITEM_SELECTED); |
| 2055 | help = AREF (menu_items, i + MENU_ITEMS_ITEM_HELP); |
| 2056 | |
| 2057 | #ifndef HAVE_MULTILINGUAL_MENU |
| 2058 | if (STRINGP (item_name) && STRING_MULTIBYTE (item_name)) |
| 2059 | { |
| 2060 | item_name = ENCODE_MENU_STRING (item_name); |
| 2061 | ASET (menu_items, i + MENU_ITEMS_ITEM_NAME, item_name); |
| 2062 | } |
| 2063 | |
| 2064 | if (STRINGP (descrip) && STRING_MULTIBYTE (descrip)) |
| 2065 | { |
| 2066 | descrip = ENCODE_MENU_STRING (descrip); |
| 2067 | ASET (menu_items, i + MENU_ITEMS_ITEM_EQUIV_KEY, descrip); |
| 2068 | } |
| 2069 | #endif /* not HAVE_MULTILINGUAL_MENU */ |
| 2070 | |
| 2071 | wv = xmalloc_widget_value (); |
| 2072 | if (prev_wv) |
| 2073 | prev_wv->next = wv; |
| 2074 | else |
| 2075 | save_wv->contents = wv; |
| 2076 | wv->name = (char *) SDATA (item_name); |
| 2077 | if (!NILP (descrip)) |
| 2078 | wv->key = (char *) SDATA (descrip); |
| 2079 | wv->value = 0; |
| 2080 | /* If this item has a null value, |
| 2081 | make the call_data null so that it won't display a box |
| 2082 | when the mouse is on it. */ |
| 2083 | wv->call_data |
| 2084 | = (!NILP (def) ? (void *) &XVECTOR (menu_items)->contents[i] : 0); |
| 2085 | wv->enabled = !NILP (enable); |
| 2086 | |
| 2087 | if (NILP (type)) |
| 2088 | wv->button_type = BUTTON_TYPE_NONE; |
| 2089 | else if (EQ (type, QCtoggle)) |
| 2090 | wv->button_type = BUTTON_TYPE_TOGGLE; |
| 2091 | else if (EQ (type, QCradio)) |
| 2092 | wv->button_type = BUTTON_TYPE_RADIO; |
| 2093 | else |
| 2094 | abort (); |
| 2095 | |
| 2096 | wv->selected = !NILP (selected); |
| 2097 | |
| 2098 | if (! STRINGP (help)) |
| 2099 | help = Qnil; |
| 2100 | |
| 2101 | wv->help = help; |
| 2102 | |
| 2103 | prev_wv = wv; |
| 2104 | |
| 2105 | i += MENU_ITEMS_ITEM_LENGTH; |
| 2106 | } |
| 2107 | } |
| 2108 | |
| 2109 | /* Deal with the title, if it is non-nil. */ |
| 2110 | if (!NILP (title)) |
| 2111 | { |
| 2112 | widget_value *wv_title = xmalloc_widget_value (); |
| 2113 | widget_value *wv_sep1 = xmalloc_widget_value (); |
| 2114 | widget_value *wv_sep2 = xmalloc_widget_value (); |
| 2115 | |
| 2116 | wv_sep2->name = "--"; |
| 2117 | wv_sep2->next = first_wv->contents; |
| 2118 | wv_sep2->help = Qnil; |
| 2119 | |
| 2120 | wv_sep1->name = "--"; |
| 2121 | wv_sep1->next = wv_sep2; |
| 2122 | wv_sep1->help = Qnil; |
| 2123 | |
| 2124 | #ifndef HAVE_MULTILINGUAL_MENU |
| 2125 | if (STRING_MULTIBYTE (title)) |
| 2126 | title = ENCODE_MENU_STRING (title); |
| 2127 | #endif |
| 2128 | |
| 2129 | wv_title->name = (char *) SDATA (title); |
| 2130 | wv_title->enabled = TRUE; |
| 2131 | wv_title->button_type = BUTTON_TYPE_NONE; |
| 2132 | wv_title->help = Qnil; |
| 2133 | wv_title->next = wv_sep1; |
| 2134 | first_wv->contents = wv_title; |
| 2135 | } |
| 2136 | |
| 2137 | /* No selection has been chosen yet. */ |
| 2138 | menu_item_selection = 0; |
| 2139 | |
| 2140 | /* Actually create and show the menu until popped down. */ |
| 2141 | create_and_show_popup_menu (f, first_wv, x, y, for_click); |
| 2142 | |
| 2143 | /* Free the widget_value objects we used to specify the contents. */ |
| 2144 | free_menubar_widget_value_tree (first_wv); |
| 2145 | |
| 2146 | /* Find the selected item, and its pane, to return |
| 2147 | the proper value. */ |
| 2148 | if (menu_item_selection != 0) |
| 2149 | { |
| 2150 | Lisp_Object prefix, entry; |
| 2151 | |
| 2152 | prefix = entry = Qnil; |
| 2153 | i = 0; |
| 2154 | while (i < menu_items_used) |
| 2155 | { |
| 2156 | if (EQ (XVECTOR (menu_items)->contents[i], Qnil)) |
| 2157 | { |
| 2158 | subprefix_stack[submenu_depth++] = prefix; |
| 2159 | prefix = entry; |
| 2160 | i++; |
| 2161 | } |
| 2162 | else if (EQ (XVECTOR (menu_items)->contents[i], Qlambda)) |
| 2163 | { |
| 2164 | prefix = subprefix_stack[--submenu_depth]; |
| 2165 | i++; |
| 2166 | } |
| 2167 | else if (EQ (XVECTOR (menu_items)->contents[i], Qt)) |
| 2168 | { |
| 2169 | prefix |
| 2170 | = XVECTOR (menu_items)->contents[i + MENU_ITEMS_PANE_PREFIX]; |
| 2171 | i += MENU_ITEMS_PANE_LENGTH; |
| 2172 | } |
| 2173 | /* Ignore a nil in the item list. |
| 2174 | It's meaningful only for dialog boxes. */ |
| 2175 | else if (EQ (XVECTOR (menu_items)->contents[i], Qquote)) |
| 2176 | i += 1; |
| 2177 | else |
| 2178 | { |
| 2179 | entry |
| 2180 | = XVECTOR (menu_items)->contents[i + MENU_ITEMS_ITEM_VALUE]; |
| 2181 | if (menu_item_selection == &XVECTOR (menu_items)->contents[i]) |
| 2182 | { |
| 2183 | if (keymaps != 0) |
| 2184 | { |
| 2185 | int j; |
| 2186 | |
| 2187 | entry = Fcons (entry, Qnil); |
| 2188 | if (!NILP (prefix)) |
| 2189 | entry = Fcons (prefix, entry); |
| 2190 | for (j = submenu_depth - 1; j >= 0; j--) |
| 2191 | if (!NILP (subprefix_stack[j])) |
| 2192 | entry = Fcons (subprefix_stack[j], entry); |
| 2193 | } |
| 2194 | return entry; |
| 2195 | } |
| 2196 | i += MENU_ITEMS_ITEM_LENGTH; |
| 2197 | } |
| 2198 | } |
| 2199 | } |
| 2200 | else if (!for_click) |
| 2201 | /* Make "Cancel" equivalent to C-g. */ |
| 2202 | Fsignal (Qquit, Qnil); |
| 2203 | |
| 2204 | return Qnil; |
| 2205 | } |
| 2206 | \f |
| 2207 | #ifdef USE_GTK |
| 2208 | static void |
| 2209 | dialog_selection_callback (widget, client_data) |
| 2210 | GtkWidget *widget; |
| 2211 | gpointer client_data; |
| 2212 | { |
| 2213 | /* The EMACS_INT cast avoids a warning. There's no problem |
| 2214 | as long as pointers have enough bits to hold small integers. */ |
| 2215 | if ((int) (EMACS_INT) client_data != -1) |
| 2216 | menu_item_selection = (Lisp_Object *) client_data; |
| 2217 | |
| 2218 | popup_activated_flag = 0; |
| 2219 | } |
| 2220 | |
| 2221 | /* Pop up the dialog for frame F defined by FIRST_WV and loop until the |
| 2222 | dialog pops down. |
| 2223 | menu_item_selection will be set to the selection. */ |
| 2224 | static void |
| 2225 | create_and_show_dialog (f, first_wv) |
| 2226 | FRAME_PTR f; |
| 2227 | widget_value *first_wv; |
| 2228 | { |
| 2229 | GtkWidget *menu; |
| 2230 | |
| 2231 | if (! FRAME_X_P (f)) |
| 2232 | abort (); |
| 2233 | |
| 2234 | menu = xg_create_widget ("dialog", first_wv->name, f, first_wv, |
| 2235 | G_CALLBACK (dialog_selection_callback), |
| 2236 | G_CALLBACK (popup_deactivate_callback), |
| 2237 | 0); |
| 2238 | |
| 2239 | if (menu) |
| 2240 | { |
| 2241 | int specpdl_count = SPECPDL_INDEX (); |
| 2242 | record_unwind_protect (pop_down_menu, make_save_value (menu, 0)); |
| 2243 | |
| 2244 | /* Display the menu. */ |
| 2245 | gtk_widget_show_all (menu); |
| 2246 | |
| 2247 | /* Process events that apply to the menu. */ |
| 2248 | popup_widget_loop (1, menu); |
| 2249 | |
| 2250 | unbind_to (specpdl_count, Qnil); |
| 2251 | } |
| 2252 | } |
| 2253 | |
| 2254 | #else /* not USE_GTK */ |
| 2255 | static void |
| 2256 | dialog_selection_callback (widget, id, client_data) |
| 2257 | Widget widget; |
| 2258 | LWLIB_ID id; |
| 2259 | XtPointer client_data; |
| 2260 | { |
| 2261 | /* The EMACS_INT cast avoids a warning. There's no problem |
| 2262 | as long as pointers have enough bits to hold small integers. */ |
| 2263 | if ((int) (EMACS_INT) client_data != -1) |
| 2264 | menu_item_selection = (Lisp_Object *) client_data; |
| 2265 | |
| 2266 | BLOCK_INPUT; |
| 2267 | lw_destroy_all_widgets (id); |
| 2268 | UNBLOCK_INPUT; |
| 2269 | popup_activated_flag = 0; |
| 2270 | } |
| 2271 | |
| 2272 | |
| 2273 | /* Pop up the dialog for frame F defined by FIRST_WV and loop until the |
| 2274 | dialog pops down. |
| 2275 | menu_item_selection will be set to the selection. */ |
| 2276 | static void |
| 2277 | create_and_show_dialog (f, first_wv) |
| 2278 | FRAME_PTR f; |
| 2279 | widget_value *first_wv; |
| 2280 | { |
| 2281 | LWLIB_ID dialog_id; |
| 2282 | |
| 2283 | if (!FRAME_X_P (f)) |
| 2284 | abort(); |
| 2285 | |
| 2286 | dialog_id = widget_id_tick++; |
| 2287 | lw_create_widget (first_wv->name, "dialog", dialog_id, first_wv, |
| 2288 | f->output_data.x->widget, 1, 0, |
| 2289 | dialog_selection_callback, 0, 0); |
| 2290 | lw_modify_all_widgets (dialog_id, first_wv->contents, True); |
| 2291 | |
| 2292 | /* Display the dialog box. */ |
| 2293 | lw_pop_up_all_widgets (dialog_id); |
| 2294 | popup_activated_flag = 1; |
| 2295 | x_activate_timeout_atimer (); |
| 2296 | |
| 2297 | /* Process events that apply to the dialog box. |
| 2298 | Also handle timers. */ |
| 2299 | { |
| 2300 | int count = SPECPDL_INDEX (); |
| 2301 | int fact = 4 * sizeof (LWLIB_ID); |
| 2302 | |
| 2303 | /* xdialog_show_unwind is responsible for popping the dialog box down. */ |
| 2304 | record_unwind_protect (pop_down_menu, |
| 2305 | Fcons (make_number (dialog_id >> (fact)), |
| 2306 | make_number (dialog_id & ~(-1 << (fact))))); |
| 2307 | |
| 2308 | popup_get_selection ((XEvent *) 0, FRAME_X_DISPLAY_INFO (f), |
| 2309 | dialog_id, 1); |
| 2310 | |
| 2311 | unbind_to (count, Qnil); |
| 2312 | } |
| 2313 | } |
| 2314 | |
| 2315 | #endif /* not USE_GTK */ |
| 2316 | |
| 2317 | static char * button_names [] = { |
| 2318 | "button1", "button2", "button3", "button4", "button5", |
| 2319 | "button6", "button7", "button8", "button9", "button10" }; |
| 2320 | |
| 2321 | static Lisp_Object |
| 2322 | xdialog_show (f, keymaps, title, header, error_name) |
| 2323 | FRAME_PTR f; |
| 2324 | int keymaps; |
| 2325 | Lisp_Object title, header; |
| 2326 | char **error_name; |
| 2327 | { |
| 2328 | int i, nb_buttons=0; |
| 2329 | char dialog_name[6]; |
| 2330 | |
| 2331 | widget_value *wv, *first_wv = 0, *prev_wv = 0; |
| 2332 | |
| 2333 | /* Number of elements seen so far, before boundary. */ |
| 2334 | int left_count = 0; |
| 2335 | /* 1 means we've seen the boundary between left-hand elts and right-hand. */ |
| 2336 | int boundary_seen = 0; |
| 2337 | |
| 2338 | if (! FRAME_X_P (f)) |
| 2339 | abort (); |
| 2340 | |
| 2341 | *error_name = NULL; |
| 2342 | |
| 2343 | if (menu_items_n_panes > 1) |
| 2344 | { |
| 2345 | *error_name = "Multiple panes in dialog box"; |
| 2346 | return Qnil; |
| 2347 | } |
| 2348 | |
| 2349 | /* Create a tree of widget_value objects |
| 2350 | representing the text label and buttons. */ |
| 2351 | { |
| 2352 | Lisp_Object pane_name, prefix; |
| 2353 | char *pane_string; |
| 2354 | pane_name = XVECTOR (menu_items)->contents[MENU_ITEMS_PANE_NAME]; |
| 2355 | prefix = XVECTOR (menu_items)->contents[MENU_ITEMS_PANE_PREFIX]; |
| 2356 | pane_string = (NILP (pane_name) |
| 2357 | ? "" : (char *) SDATA (pane_name)); |
| 2358 | prev_wv = xmalloc_widget_value (); |
| 2359 | prev_wv->value = pane_string; |
| 2360 | if (keymaps && !NILP (prefix)) |
| 2361 | prev_wv->name++; |
| 2362 | prev_wv->enabled = 1; |
| 2363 | prev_wv->name = "message"; |
| 2364 | prev_wv->help = Qnil; |
| 2365 | first_wv = prev_wv; |
| 2366 | |
| 2367 | /* Loop over all panes and items, filling in the tree. */ |
| 2368 | i = MENU_ITEMS_PANE_LENGTH; |
| 2369 | while (i < menu_items_used) |
| 2370 | { |
| 2371 | |
| 2372 | /* Create a new item within current pane. */ |
| 2373 | Lisp_Object item_name, enable, descrip; |
| 2374 | item_name = XVECTOR (menu_items)->contents[i + MENU_ITEMS_ITEM_NAME]; |
| 2375 | enable = XVECTOR (menu_items)->contents[i + MENU_ITEMS_ITEM_ENABLE]; |
| 2376 | descrip |
| 2377 | = XVECTOR (menu_items)->contents[i + MENU_ITEMS_ITEM_EQUIV_KEY]; |
| 2378 | |
| 2379 | if (NILP (item_name)) |
| 2380 | { |
| 2381 | free_menubar_widget_value_tree (first_wv); |
| 2382 | *error_name = "Submenu in dialog items"; |
| 2383 | return Qnil; |
| 2384 | } |
| 2385 | if (EQ (item_name, Qquote)) |
| 2386 | { |
| 2387 | /* This is the boundary between left-side elts |
| 2388 | and right-side elts. Stop incrementing right_count. */ |
| 2389 | boundary_seen = 1; |
| 2390 | i++; |
| 2391 | continue; |
| 2392 | } |
| 2393 | if (nb_buttons >= 9) |
| 2394 | { |
| 2395 | free_menubar_widget_value_tree (first_wv); |
| 2396 | *error_name = "Too many dialog items"; |
| 2397 | return Qnil; |
| 2398 | } |
| 2399 | |
| 2400 | wv = xmalloc_widget_value (); |
| 2401 | prev_wv->next = wv; |
| 2402 | wv->name = (char *) button_names[nb_buttons]; |
| 2403 | if (!NILP (descrip)) |
| 2404 | wv->key = (char *) SDATA (descrip); |
| 2405 | wv->value = (char *) SDATA (item_name); |
| 2406 | wv->call_data = (void *) &XVECTOR (menu_items)->contents[i]; |
| 2407 | wv->enabled = !NILP (enable); |
| 2408 | wv->help = Qnil; |
| 2409 | prev_wv = wv; |
| 2410 | |
| 2411 | if (! boundary_seen) |
| 2412 | left_count++; |
| 2413 | |
| 2414 | nb_buttons++; |
| 2415 | i += MENU_ITEMS_ITEM_LENGTH; |
| 2416 | } |
| 2417 | |
| 2418 | /* If the boundary was not specified, |
| 2419 | by default put half on the left and half on the right. */ |
| 2420 | if (! boundary_seen) |
| 2421 | left_count = nb_buttons - nb_buttons / 2; |
| 2422 | |
| 2423 | wv = xmalloc_widget_value (); |
| 2424 | wv->name = dialog_name; |
| 2425 | wv->help = Qnil; |
| 2426 | |
| 2427 | /* Frame title: 'Q' = Question, 'I' = Information. |
| 2428 | Can also have 'E' = Error if, one day, we want |
| 2429 | a popup for errors. */ |
| 2430 | if (NILP(header)) |
| 2431 | dialog_name[0] = 'Q'; |
| 2432 | else |
| 2433 | dialog_name[0] = 'I'; |
| 2434 | |
| 2435 | /* Dialog boxes use a really stupid name encoding |
| 2436 | which specifies how many buttons to use |
| 2437 | and how many buttons are on the right. */ |
| 2438 | dialog_name[1] = '0' + nb_buttons; |
| 2439 | dialog_name[2] = 'B'; |
| 2440 | dialog_name[3] = 'R'; |
| 2441 | /* Number of buttons to put on the right. */ |
| 2442 | dialog_name[4] = '0' + nb_buttons - left_count; |
| 2443 | dialog_name[5] = 0; |
| 2444 | wv->contents = first_wv; |
| 2445 | first_wv = wv; |
| 2446 | } |
| 2447 | |
| 2448 | /* No selection has been chosen yet. */ |
| 2449 | menu_item_selection = 0; |
| 2450 | |
| 2451 | /* Force a redisplay before showing the dialog. If a frame is created |
| 2452 | just before showing the dialog, its contents may not have been fully |
| 2453 | drawn, as this depends on timing of events from the X server. Redisplay |
| 2454 | is not done when a dialog is shown. If redisplay could be done in the |
| 2455 | X event loop (i.e. the X event loop does not run in a signal handler) |
| 2456 | this would not be needed. */ |
| 2457 | Fredisplay (Qt); |
| 2458 | |
| 2459 | /* Actually create and show the dialog. */ |
| 2460 | create_and_show_dialog (f, first_wv); |
| 2461 | |
| 2462 | /* Free the widget_value objects we used to specify the contents. */ |
| 2463 | free_menubar_widget_value_tree (first_wv); |
| 2464 | |
| 2465 | /* Find the selected item, and its pane, to return |
| 2466 | the proper value. */ |
| 2467 | if (menu_item_selection != 0) |
| 2468 | { |
| 2469 | Lisp_Object prefix; |
| 2470 | |
| 2471 | prefix = Qnil; |
| 2472 | i = 0; |
| 2473 | while (i < menu_items_used) |
| 2474 | { |
| 2475 | Lisp_Object entry; |
| 2476 | |
| 2477 | if (EQ (XVECTOR (menu_items)->contents[i], Qt)) |
| 2478 | { |
| 2479 | prefix |
| 2480 | = XVECTOR (menu_items)->contents[i + MENU_ITEMS_PANE_PREFIX]; |
| 2481 | i += MENU_ITEMS_PANE_LENGTH; |
| 2482 | } |
| 2483 | else if (EQ (XVECTOR (menu_items)->contents[i], Qquote)) |
| 2484 | { |
| 2485 | /* This is the boundary between left-side elts and |
| 2486 | right-side elts. */ |
| 2487 | ++i; |
| 2488 | } |
| 2489 | else |
| 2490 | { |
| 2491 | entry |
| 2492 | = XVECTOR (menu_items)->contents[i + MENU_ITEMS_ITEM_VALUE]; |
| 2493 | if (menu_item_selection == &XVECTOR (menu_items)->contents[i]) |
| 2494 | { |
| 2495 | if (keymaps != 0) |
| 2496 | { |
| 2497 | entry = Fcons (entry, Qnil); |
| 2498 | if (!NILP (prefix)) |
| 2499 | entry = Fcons (prefix, entry); |
| 2500 | } |
| 2501 | return entry; |
| 2502 | } |
| 2503 | i += MENU_ITEMS_ITEM_LENGTH; |
| 2504 | } |
| 2505 | } |
| 2506 | } |
| 2507 | else |
| 2508 | /* Make "Cancel" equivalent to C-g. */ |
| 2509 | Fsignal (Qquit, Qnil); |
| 2510 | |
| 2511 | return Qnil; |
| 2512 | } |
| 2513 | |
| 2514 | #else /* not USE_X_TOOLKIT && not USE_GTK */ |
| 2515 | |
| 2516 | /* The frame of the last activated non-toolkit menu bar. |
| 2517 | Used to generate menu help events. */ |
| 2518 | |
| 2519 | static struct frame *menu_help_frame; |
| 2520 | |
| 2521 | |
| 2522 | /* Show help HELP_STRING, or clear help if HELP_STRING is null. |
| 2523 | |
| 2524 | PANE is the pane number, and ITEM is the menu item number in |
| 2525 | the menu (currently not used). |
| 2526 | |
| 2527 | This cannot be done with generating a HELP_EVENT because |
| 2528 | XMenuActivate contains a loop that doesn't let Emacs process |
| 2529 | keyboard events. */ |
| 2530 | |
| 2531 | static void |
| 2532 | menu_help_callback (help_string, pane, item) |
| 2533 | char *help_string; |
| 2534 | int pane, item; |
| 2535 | { |
| 2536 | extern Lisp_Object Qmenu_item; |
| 2537 | Lisp_Object *first_item; |
| 2538 | Lisp_Object pane_name; |
| 2539 | Lisp_Object menu_object; |
| 2540 | |
| 2541 | first_item = XVECTOR (menu_items)->contents; |
| 2542 | if (EQ (first_item[0], Qt)) |
| 2543 | pane_name = first_item[MENU_ITEMS_PANE_NAME]; |
| 2544 | else if (EQ (first_item[0], Qquote)) |
| 2545 | /* This shouldn't happen, see xmenu_show. */ |
| 2546 | pane_name = empty_unibyte_string; |
| 2547 | else |
| 2548 | pane_name = first_item[MENU_ITEMS_ITEM_NAME]; |
| 2549 | |
| 2550 | /* (menu-item MENU-NAME PANE-NUMBER) */ |
| 2551 | menu_object = Fcons (Qmenu_item, |
| 2552 | Fcons (pane_name, |
| 2553 | Fcons (make_number (pane), Qnil))); |
| 2554 | show_help_echo (help_string ? build_string (help_string) : Qnil, |
| 2555 | Qnil, menu_object, make_number (item), 1); |
| 2556 | } |
| 2557 | |
| 2558 | static Lisp_Object |
| 2559 | pop_down_menu (arg) |
| 2560 | Lisp_Object arg; |
| 2561 | { |
| 2562 | struct Lisp_Save_Value *p1 = XSAVE_VALUE (Fcar (arg)); |
| 2563 | struct Lisp_Save_Value *p2 = XSAVE_VALUE (Fcdr (arg)); |
| 2564 | |
| 2565 | FRAME_PTR f = p1->pointer; |
| 2566 | XMenu *menu = p2->pointer; |
| 2567 | |
| 2568 | BLOCK_INPUT; |
| 2569 | #ifndef MSDOS |
| 2570 | XUngrabPointer (FRAME_X_DISPLAY (f), CurrentTime); |
| 2571 | XUngrabKeyboard (FRAME_X_DISPLAY (f), CurrentTime); |
| 2572 | #endif |
| 2573 | XMenuDestroy (FRAME_X_DISPLAY (f), menu); |
| 2574 | |
| 2575 | #ifdef HAVE_X_WINDOWS |
| 2576 | /* Assume the mouse has moved out of the X window. |
| 2577 | If it has actually moved in, we will get an EnterNotify. */ |
| 2578 | x_mouse_leave (FRAME_X_DISPLAY_INFO (f)); |
| 2579 | |
| 2580 | /* State that no mouse buttons are now held. |
| 2581 | (The oldXMenu code doesn't track this info for us.) |
| 2582 | That is not necessarily true, but the fiction leads to reasonable |
| 2583 | results, and it is a pain to ask which are actually held now. */ |
| 2584 | FRAME_X_DISPLAY_INFO (f)->grabbed = 0; |
| 2585 | |
| 2586 | #endif /* HAVE_X_WINDOWS */ |
| 2587 | |
| 2588 | UNBLOCK_INPUT; |
| 2589 | |
| 2590 | return Qnil; |
| 2591 | } |
| 2592 | |
| 2593 | |
| 2594 | static Lisp_Object |
| 2595 | xmenu_show (f, x, y, for_click, keymaps, title, error) |
| 2596 | FRAME_PTR f; |
| 2597 | int x, y; |
| 2598 | int for_click; |
| 2599 | int keymaps; |
| 2600 | Lisp_Object title; |
| 2601 | char **error; |
| 2602 | { |
| 2603 | Window root; |
| 2604 | XMenu *menu; |
| 2605 | int pane, selidx, lpane, status; |
| 2606 | Lisp_Object entry, pane_prefix; |
| 2607 | char *datap; |
| 2608 | int ulx, uly, width, height; |
| 2609 | int dispwidth, dispheight; |
| 2610 | int i, j, lines, maxlines; |
| 2611 | int maxwidth; |
| 2612 | int dummy_int; |
| 2613 | unsigned int dummy_uint; |
| 2614 | int specpdl_count = SPECPDL_INDEX (); |
| 2615 | |
| 2616 | if (! FRAME_X_P (f) && ! FRAME_MSDOS_P (f)) |
| 2617 | abort (); |
| 2618 | |
| 2619 | *error = 0; |
| 2620 | if (menu_items_n_panes == 0) |
| 2621 | return Qnil; |
| 2622 | |
| 2623 | if (menu_items_used <= MENU_ITEMS_PANE_LENGTH) |
| 2624 | { |
| 2625 | *error = "Empty menu"; |
| 2626 | return Qnil; |
| 2627 | } |
| 2628 | |
| 2629 | /* Figure out which root window F is on. */ |
| 2630 | XGetGeometry (FRAME_X_DISPLAY (f), FRAME_X_WINDOW (f), &root, |
| 2631 | &dummy_int, &dummy_int, &dummy_uint, &dummy_uint, |
| 2632 | &dummy_uint, &dummy_uint); |
| 2633 | |
| 2634 | /* Make the menu on that window. */ |
| 2635 | menu = XMenuCreate (FRAME_X_DISPLAY (f), root, "emacs"); |
| 2636 | if (menu == NULL) |
| 2637 | { |
| 2638 | *error = "Can't create menu"; |
| 2639 | return Qnil; |
| 2640 | } |
| 2641 | |
| 2642 | /* Don't GC while we prepare and show the menu, |
| 2643 | because we give the oldxmenu library pointers to the |
| 2644 | contents of strings. */ |
| 2645 | inhibit_garbage_collection (); |
| 2646 | |
| 2647 | #ifdef HAVE_X_WINDOWS |
| 2648 | /* Adjust coordinates to relative to the outer (window manager) window. */ |
| 2649 | x += FRAME_OUTER_TO_INNER_DIFF_X (f); |
| 2650 | y += FRAME_OUTER_TO_INNER_DIFF_Y (f); |
| 2651 | #endif /* HAVE_X_WINDOWS */ |
| 2652 | |
| 2653 | /* Adjust coordinates to be root-window-relative. */ |
| 2654 | x += f->left_pos; |
| 2655 | y += f->top_pos; |
| 2656 | |
| 2657 | /* Create all the necessary panes and their items. */ |
| 2658 | maxlines = lines = i = 0; |
| 2659 | while (i < menu_items_used) |
| 2660 | { |
| 2661 | if (EQ (XVECTOR (menu_items)->contents[i], Qt)) |
| 2662 | { |
| 2663 | /* Create a new pane. */ |
| 2664 | Lisp_Object pane_name, prefix; |
| 2665 | char *pane_string; |
| 2666 | |
| 2667 | maxlines = max (maxlines, lines); |
| 2668 | lines = 0; |
| 2669 | pane_name = XVECTOR (menu_items)->contents[i + MENU_ITEMS_PANE_NAME]; |
| 2670 | prefix = XVECTOR (menu_items)->contents[i + MENU_ITEMS_PANE_PREFIX]; |
| 2671 | pane_string = (NILP (pane_name) |
| 2672 | ? "" : (char *) SDATA (pane_name)); |
| 2673 | if (keymaps && !NILP (prefix)) |
| 2674 | pane_string++; |
| 2675 | |
| 2676 | lpane = XMenuAddPane (FRAME_X_DISPLAY (f), menu, pane_string, TRUE); |
| 2677 | if (lpane == XM_FAILURE) |
| 2678 | { |
| 2679 | XMenuDestroy (FRAME_X_DISPLAY (f), menu); |
| 2680 | *error = "Can't create pane"; |
| 2681 | return Qnil; |
| 2682 | } |
| 2683 | i += MENU_ITEMS_PANE_LENGTH; |
| 2684 | |
| 2685 | /* Find the width of the widest item in this pane. */ |
| 2686 | maxwidth = 0; |
| 2687 | j = i; |
| 2688 | while (j < menu_items_used) |
| 2689 | { |
| 2690 | Lisp_Object item; |
| 2691 | item = XVECTOR (menu_items)->contents[j]; |
| 2692 | if (EQ (item, Qt)) |
| 2693 | break; |
| 2694 | if (NILP (item)) |
| 2695 | { |
| 2696 | j++; |
| 2697 | continue; |
| 2698 | } |
| 2699 | width = SBYTES (item); |
| 2700 | if (width > maxwidth) |
| 2701 | maxwidth = width; |
| 2702 | |
| 2703 | j += MENU_ITEMS_ITEM_LENGTH; |
| 2704 | } |
| 2705 | } |
| 2706 | /* Ignore a nil in the item list. |
| 2707 | It's meaningful only for dialog boxes. */ |
| 2708 | else if (EQ (XVECTOR (menu_items)->contents[i], Qquote)) |
| 2709 | i += 1; |
| 2710 | else |
| 2711 | { |
| 2712 | /* Create a new item within current pane. */ |
| 2713 | Lisp_Object item_name, enable, descrip, help; |
| 2714 | unsigned char *item_data; |
| 2715 | char *help_string; |
| 2716 | |
| 2717 | item_name = XVECTOR (menu_items)->contents[i + MENU_ITEMS_ITEM_NAME]; |
| 2718 | enable = XVECTOR (menu_items)->contents[i + MENU_ITEMS_ITEM_ENABLE]; |
| 2719 | descrip |
| 2720 | = XVECTOR (menu_items)->contents[i + MENU_ITEMS_ITEM_EQUIV_KEY]; |
| 2721 | help = XVECTOR (menu_items)->contents[i + MENU_ITEMS_ITEM_HELP]; |
| 2722 | help_string = STRINGP (help) ? SDATA (help) : NULL; |
| 2723 | |
| 2724 | if (!NILP (descrip)) |
| 2725 | { |
| 2726 | int gap = maxwidth - SBYTES (item_name); |
| 2727 | /* if alloca is fast, use that to make the space, |
| 2728 | to reduce gc needs. */ |
| 2729 | item_data |
| 2730 | = (unsigned char *) alloca (maxwidth |
| 2731 | + SBYTES (descrip) + 1); |
| 2732 | bcopy (SDATA (item_name), item_data, |
| 2733 | SBYTES (item_name)); |
| 2734 | for (j = SCHARS (item_name); j < maxwidth; j++) |
| 2735 | item_data[j] = ' '; |
| 2736 | bcopy (SDATA (descrip), item_data + j, |
| 2737 | SBYTES (descrip)); |
| 2738 | item_data[j + SBYTES (descrip)] = 0; |
| 2739 | } |
| 2740 | else |
| 2741 | item_data = SDATA (item_name); |
| 2742 | |
| 2743 | if (XMenuAddSelection (FRAME_X_DISPLAY (f), |
| 2744 | menu, lpane, 0, item_data, |
| 2745 | !NILP (enable), help_string) |
| 2746 | == XM_FAILURE) |
| 2747 | { |
| 2748 | XMenuDestroy (FRAME_X_DISPLAY (f), menu); |
| 2749 | *error = "Can't add selection to menu"; |
| 2750 | return Qnil; |
| 2751 | } |
| 2752 | i += MENU_ITEMS_ITEM_LENGTH; |
| 2753 | lines++; |
| 2754 | } |
| 2755 | } |
| 2756 | |
| 2757 | maxlines = max (maxlines, lines); |
| 2758 | |
| 2759 | /* All set and ready to fly. */ |
| 2760 | XMenuRecompute (FRAME_X_DISPLAY (f), menu); |
| 2761 | dispwidth = DisplayWidth (FRAME_X_DISPLAY (f), FRAME_X_SCREEN_NUMBER (f)); |
| 2762 | dispheight = DisplayHeight (FRAME_X_DISPLAY (f), FRAME_X_SCREEN_NUMBER (f)); |
| 2763 | x = min (x, dispwidth); |
| 2764 | y = min (y, dispheight); |
| 2765 | x = max (x, 1); |
| 2766 | y = max (y, 1); |
| 2767 | XMenuLocate (FRAME_X_DISPLAY (f), menu, 0, 0, x, y, |
| 2768 | &ulx, &uly, &width, &height); |
| 2769 | if (ulx+width > dispwidth) |
| 2770 | { |
| 2771 | x -= (ulx + width) - dispwidth; |
| 2772 | ulx = dispwidth - width; |
| 2773 | } |
| 2774 | if (uly+height > dispheight) |
| 2775 | { |
| 2776 | y -= (uly + height) - dispheight; |
| 2777 | uly = dispheight - height; |
| 2778 | } |
| 2779 | #ifndef HAVE_X_WINDOWS |
| 2780 | if (FRAME_HAS_MINIBUF_P (f) && uly+height > dispheight - 1) |
| 2781 | { |
| 2782 | /* Move the menu away of the echo area, to avoid overwriting the |
| 2783 | menu with help echo messages or vice versa. */ |
| 2784 | if (BUFFERP (echo_area_buffer[0]) && WINDOWP (echo_area_window)) |
| 2785 | { |
| 2786 | y -= WINDOW_TOTAL_LINES (XWINDOW (echo_area_window)); |
| 2787 | uly -= WINDOW_TOTAL_LINES (XWINDOW (echo_area_window)); |
| 2788 | } |
| 2789 | else |
| 2790 | { |
| 2791 | y--; |
| 2792 | uly--; |
| 2793 | } |
| 2794 | } |
| 2795 | #endif |
| 2796 | if (ulx < 0) x -= ulx; |
| 2797 | if (uly < 0) y -= uly; |
| 2798 | |
| 2799 | if (! for_click) |
| 2800 | { |
| 2801 | /* If position was not given by a mouse click, adjust so upper left |
| 2802 | corner of the menu as a whole ends up at given coordinates. This |
| 2803 | is what x-popup-menu says in its documentation. */ |
| 2804 | x += width/2; |
| 2805 | y += 1.5*height/(maxlines+2); |
| 2806 | } |
| 2807 | |
| 2808 | XMenuSetAEQ (menu, TRUE); |
| 2809 | XMenuSetFreeze (menu, TRUE); |
| 2810 | pane = selidx = 0; |
| 2811 | |
| 2812 | #ifndef MSDOS |
| 2813 | XMenuActivateSetWaitFunction (x_menu_wait_for_event, FRAME_X_DISPLAY (f)); |
| 2814 | #endif |
| 2815 | |
| 2816 | record_unwind_protect (pop_down_menu, |
| 2817 | Fcons (make_save_value (f, 0), |
| 2818 | make_save_value (menu, 0))); |
| 2819 | |
| 2820 | /* Help display under X won't work because XMenuActivate contains |
| 2821 | a loop that doesn't give Emacs a chance to process it. */ |
| 2822 | menu_help_frame = f; |
| 2823 | status = XMenuActivate (FRAME_X_DISPLAY (f), menu, &pane, &selidx, |
| 2824 | x, y, ButtonReleaseMask, &datap, |
| 2825 | menu_help_callback); |
| 2826 | |
| 2827 | switch (status) |
| 2828 | { |
| 2829 | case XM_SUCCESS: |
| 2830 | #ifdef XDEBUG |
| 2831 | fprintf (stderr, "pane= %d line = %d\n", panes, selidx); |
| 2832 | #endif |
| 2833 | |
| 2834 | /* Find the item number SELIDX in pane number PANE. */ |
| 2835 | i = 0; |
| 2836 | while (i < menu_items_used) |
| 2837 | { |
| 2838 | if (EQ (XVECTOR (menu_items)->contents[i], Qt)) |
| 2839 | { |
| 2840 | if (pane == 0) |
| 2841 | pane_prefix |
| 2842 | = XVECTOR (menu_items)->contents[i + MENU_ITEMS_PANE_PREFIX]; |
| 2843 | pane--; |
| 2844 | i += MENU_ITEMS_PANE_LENGTH; |
| 2845 | } |
| 2846 | else |
| 2847 | { |
| 2848 | if (pane == -1) |
| 2849 | { |
| 2850 | if (selidx == 0) |
| 2851 | { |
| 2852 | entry |
| 2853 | = XVECTOR (menu_items)->contents[i + MENU_ITEMS_ITEM_VALUE]; |
| 2854 | if (keymaps != 0) |
| 2855 | { |
| 2856 | entry = Fcons (entry, Qnil); |
| 2857 | if (!NILP (pane_prefix)) |
| 2858 | entry = Fcons (pane_prefix, entry); |
| 2859 | } |
| 2860 | break; |
| 2861 | } |
| 2862 | selidx--; |
| 2863 | } |
| 2864 | i += MENU_ITEMS_ITEM_LENGTH; |
| 2865 | } |
| 2866 | } |
| 2867 | break; |
| 2868 | |
| 2869 | case XM_FAILURE: |
| 2870 | *error = "Can't activate menu"; |
| 2871 | case XM_IA_SELECT: |
| 2872 | entry = Qnil; |
| 2873 | break; |
| 2874 | case XM_NO_SELECT: |
| 2875 | /* Make "Cancel" equivalent to C-g unless FOR_CLICK (which means |
| 2876 | the menu was invoked with a mouse event as POSITION). */ |
| 2877 | if (! for_click) |
| 2878 | Fsignal (Qquit, Qnil); |
| 2879 | entry = Qnil; |
| 2880 | break; |
| 2881 | } |
| 2882 | |
| 2883 | unbind_to (specpdl_count, Qnil); |
| 2884 | |
| 2885 | return entry; |
| 2886 | } |
| 2887 | |
| 2888 | #endif /* not USE_X_TOOLKIT */ |
| 2889 | |
| 2890 | #endif /* HAVE_MENUS */ |
| 2891 | |
| 2892 | /* Detect if a dialog or menu has been posted. */ |
| 2893 | |
| 2894 | int |
| 2895 | popup_activated () |
| 2896 | { |
| 2897 | return popup_activated_flag; |
| 2898 | } |
| 2899 | |
| 2900 | /* The following is used by delayed window autoselection. */ |
| 2901 | |
| 2902 | DEFUN ("menu-or-popup-active-p", Fmenu_or_popup_active_p, Smenu_or_popup_active_p, 0, 0, 0, |
| 2903 | doc: /* Return t if a menu or popup dialog is active. */) |
| 2904 | () |
| 2905 | { |
| 2906 | #ifdef HAVE_MENUS |
| 2907 | return (popup_activated ()) ? Qt : Qnil; |
| 2908 | #else |
| 2909 | return Qnil; |
| 2910 | #endif /* HAVE_MENUS */ |
| 2911 | } |
| 2912 | \f |
| 2913 | void |
| 2914 | syms_of_xmenu () |
| 2915 | { |
| 2916 | Qdebug_on_next_call = intern ("debug-on-next-call"); |
| 2917 | staticpro (&Qdebug_on_next_call); |
| 2918 | |
| 2919 | #ifdef USE_X_TOOLKIT |
| 2920 | widget_id_tick = (1<<16); |
| 2921 | next_menubar_widget_id = 1; |
| 2922 | #endif |
| 2923 | |
| 2924 | defsubr (&Sx_popup_menu); |
| 2925 | defsubr (&Smenu_or_popup_active_p); |
| 2926 | |
| 2927 | #if defined (USE_GTK) || defined (USE_X_TOOLKIT) |
| 2928 | defsubr (&Sx_menu_bar_open_internal); |
| 2929 | Ffset (intern ("accelerate-menu"), |
| 2930 | intern (Sx_menu_bar_open_internal.symbol_name)); |
| 2931 | #endif |
| 2932 | |
| 2933 | #ifdef HAVE_MENUS |
| 2934 | defsubr (&Sx_popup_dialog); |
| 2935 | #endif |
| 2936 | } |
| 2937 | |
| 2938 | /* arch-tag: 92ea573c-398e-496e-ac73-2436f7d63242 |
| 2939 | (do not change this comment) */ |