src/nsmenu.m

   1 /* NeXT/Open/GNUstep and MacOSX Cocoa menu and toolbar module.
   2    Copyright (C) 2007-2012 Free Software Foundation, Inc.
   3
   4 This file is part of GNU Emacs.
   5
   6 GNU Emacs is free software: you can redistribute it and/or modify
   7 it under the terms of the GNU General Public License as published by
   8 the Free Software Foundation, either version 3 of the License, or
   9 (at your option) any later version.
  10
  11 GNU Emacs is distributed in the hope that it will be useful,
  12 but WITHOUT ANY WARRANTY; without even the implied warranty of
  13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14 GNU General Public License for more details.
  15
  16 You should have received a copy of the GNU General Public License
  17 along with GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.  */
  18
  19 /*
  20 By Adrian Robert, based on code from original nsmenu.m (Carl Edman,
  21 Christian Limpach, Scott Bender, Christophe de Dinechin) and code in the
  22 Carbon version by Yamamoto Mitsuharu. */
  23
  24 /* This should be the first include, as it may set up #defines affecting
  25    interpretation of even the system includes. */
  26 #include <config.h>
  27 #include <setjmp.h>
  28
  29 #include "lisp.h"
  30 #include "window.h"
  31 #include "character.h"
  32 #include "buffer.h"
  33 #include "keymap.h"
  34 #include "coding.h"
  35 #include "commands.h"
  36 #include "blockinput.h"
  37 #include "nsterm.h"
  38 #include "termhooks.h"
  39 #include "keyboard.h"
  40 #include "menu.h"
  41
  42 #define NSMENUPROFILE 0
  43
  44 #if NSMENUPROFILE
  45 #include <sys/timeb.h>
  46 #include <sys/types.h>
  47 #endif
  48
  49 #define MenuStagger 10.0
  50
  51 #if 0
  52 int menu_trace_num = 0;
  53 #define NSTRACE(x)        fprintf (stderr, "%s:%d: [%d] " #x "\n",        \
  54                                 __FILE__, __LINE__, ++menu_trace_num)
  55 #else
  56 #define NSTRACE(x)
  57 #endif
  58
  59 #if 0
  60 /* Include lisp -> C common menu parsing code */
  61 #define ENCODE_MENU_STRING(str) ENCODE_UTF_8 (str)
  62 #include "nsmenu_common.c"
  63 #endif
  64
  65 extern Lisp_Object Qundefined, Qmenu_enable, Qmenu_bar_update_hook;
  66 extern Lisp_Object QCtoggle, QCradio;
  67
  68 Lisp_Object Qdebug_on_next_call;
  69 extern Lisp_Object Qoverriding_local_map, Qoverriding_terminal_local_map;
  70
  71 extern long context_menu_value;
  72 EmacsMenu *mainMenu, *svcsMenu, *dockMenu;
  73
  74 /* Nonzero means a menu is currently active.  */
  75 static int popup_activated_flag;
  76 static NSModalSession popupSession;
  77
  78 /* Nonzero means we are tracking and updating menus.  */
  79 static int trackingMenu;
  80
  81
  82 /* NOTE: toolbar implementation is at end,
  83   following complete menu implementation. */
  84
  85
  86 /* ==========================================================================
  87
  88     Menu: Externally-called functions
  89
  90    ========================================================================== */
  91
  92
  93 /* FIXME: not currently used, but should normalize with other terms. */
  94 void
  95 x_activate_menubar (struct frame *f)
  96 {
  97     fprintf (stderr, "XXX: Received x_activate_menubar event.\n");
  98 }
  99
 100
 101 /* Supposed to discard menubar and free storage.  Since we share the
 102    menubar among frames and update its context for the focused window,
 103    there is nothing to do here. */
 104 void
 105 free_frame_menubar (struct frame *f)
 106 {
 107   return;
 108 }
 109
 110
 111 int
 112 popup_activated (void)
 113 {
 114   return popup_activated_flag;
 115 }
 116
 117
 118 /* --------------------------------------------------------------------------
 119     Update menubar.  Three cases:
 120     1) deep_p = 0, submenu = nil: Fresh switch onto a frame -- either set up
 121        just top-level menu strings (OS X), or goto case (2) (GNUstep).
 122     2) deep_p = 1, submenu = nil: Recompute all submenus.
 123     3) deep_p = 1, submenu = non-nil: Update contents of a single submenu.
 124    -------------------------------------------------------------------------- */
 125 void
 126 ns_update_menubar (struct frame *f, int deep_p, EmacsMenu *submenu)
 127 {
 128   NSAutoreleasePool *pool;
 129   id menu = [NSApp mainMenu];
 130   static EmacsMenu *last_submenu = nil;
 131   BOOL needsSet = NO;
 132   const char *submenuTitle = [[submenu title] UTF8String];
 133   extern int waiting_for_input;
 134   int owfi;
 135   Lisp_Object items;
 136   widget_value *wv, *first_wv, *prev_wv = 0;
 137   int i;
 138
 139 #if NSMENUPROFILE
 140   struct timeb tb;
 141   long t;
 142 #endif
 143
 144   NSTRACE (set_frame_menubar);
 145
 146   if (f != SELECTED_FRAME ())
 147       return;
 148   XSETFRAME (Vmenu_updating_frame, f);
 149 /*fprintf (stderr, "ns_update_menubar: frame: %p\tdeep: %d\tsub: %p\n", f, deep_p, submenu); */
 150
 151   BLOCK_INPUT;
 152   pool = [[NSAutoreleasePool alloc] init];
 153
 154   /* Menu may have been created automatically; if so, discard it. */
 155   if ([menu isKindOfClass: [EmacsMenu class]] == NO)
 156     {
 157       [menu release];
 158       menu = nil;
 159     }
 160
 161   if (menu == nil)
 162     {
 163       menu = [[EmacsMenu alloc] initWithTitle: ns_app_name];
 164       needsSet = YES;
 165     }
 166   else
 167     {  /* close up anything on there */
 168       id attMenu = [menu attachedMenu];
 169       if (attMenu != nil)
 170         [attMenu close];
 171     }
 172
 173 #if NSMENUPROFILE
 174   ftime (&tb);
 175   t = -(1000*tb.time+tb.millitm);
 176 #endif
 177
 178 #ifdef NS_IMPL_GNUSTEP
 179   deep_p = 1; /* until GNUstep NSMenu implements the Panther delegation model */
 180 #endif
 181
 182   if (deep_p)
 183     {
 184       /* Fully parse one or more of the submenus. */
 185       int n = 0;
 186       int *submenu_start, *submenu_end;
 187       int *submenu_top_level_items, *submenu_n_panes;
 188       struct buffer *prev = current_buffer;
 189       Lisp_Object buffer;
 190       ptrdiff_t specpdl_count = SPECPDL_INDEX ();
 191       int previous_menu_items_used = f->menu_bar_items_used;
 192       Lisp_Object *previous_items
 193         = alloca (previous_menu_items_used * sizeof *previous_items);
 194
 195       /* lisp preliminaries */
 196       buffer = XWINDOW (FRAME_SELECTED_WINDOW (f))->buffer;
 197       specbind (Qinhibit_quit, Qt);
 198       specbind (Qdebug_on_next_call, Qnil);
 199       record_unwind_save_match_data ();
 200       if (NILP (Voverriding_local_map_menu_flag))
 201         {
 202           specbind (Qoverriding_terminal_local_map, Qnil);
 203           specbind (Qoverriding_local_map, Qnil);
 204         }
 205       set_buffer_internal_1 (XBUFFER (buffer));
 206
 207       /* TODO: for some reason this is not needed in other terms,
 208            but some menu updates call Info-extract-pointer which causes
 209            abort-on-error if waiting-for-input.  Needs further investigation. */
 210       owfi = waiting_for_input;
 211       waiting_for_input = 0;
 212
 213       /* lucid hook and possible reset */
 214       safe_run_hooks (Qactivate_menubar_hook);
 215       if (! NILP (Vlucid_menu_bar_dirty_flag))
 216         call0 (Qrecompute_lucid_menubar);
 217       safe_run_hooks (Qmenu_bar_update_hook);
 218       FRAME_MENU_BAR_ITEMS (f) = menu_bar_items (FRAME_MENU_BAR_ITEMS (f));
 219
 220       /* Now ready to go */
 221       items = FRAME_MENU_BAR_ITEMS (f);
 222
 223       /* Save the frame's previous menu bar contents data */
 224       if (previous_menu_items_used)
 225         memcpy (previous_items, &AREF (f->menu_bar_vector, 0),
 226                 previous_menu_items_used * sizeof (Lisp_Object));
 227
 228       /* parse stage 1: extract from lisp */
 229       save_menu_items ();
 230
 231       menu_items = f->menu_bar_vector;
 232       menu_items_allocated = VECTORP (menu_items) ? ASIZE (menu_items) : 0;
 233       submenu_start = alloca (ASIZE (items) * sizeof *submenu_start);
 234       submenu_end = alloca (ASIZE (items) * sizeof *submenu_end);
 235       submenu_n_panes = alloca (ASIZE (items) * sizeof *submenu_n_panes);
 236       submenu_top_level_items = alloca (ASIZE (items)
 237                                         * sizeof *submenu_top_level_items);
 238       init_menu_items ();
 239       for (i = 0; i < ASIZE (items); i += 4)
 240         {
 241           Lisp_Object key, string, maps;
 242
 243           key = AREF (items, i);
 244           string = AREF (items, i + 1);
 245           maps = AREF (items, i + 2);
 246           if (NILP (string))
 247             break;
 248
 249           /* FIXME: we'd like to only parse the needed submenu, but this
 250                was causing crashes in the _common parsing code.. need to make
 251                sure proper initialization done.. */
 252 /*        if (submenu && strcmp (submenuTitle, SDATA (string)))
 253              continue; */
 254
 255           submenu_start[i] = menu_items_used;
 256
 257           menu_items_n_panes = 0;
 258           submenu_top_level_items[i] = parse_single_submenu (key, string, maps);
 259           submenu_n_panes[i] = menu_items_n_panes;
 260           submenu_end[i] = menu_items_used;
 261           n++;
 262         }
 263
 264       finish_menu_items ();
 265       waiting_for_input = owfi;
 266
 267
 268       if (submenu && n == 0)
 269         {
 270           /* should have found a menu for this one but didn't */
 271           fprintf (stderr, "ERROR: did not find lisp menu for submenu '%s'.\n",
 272                   submenuTitle);
 273           discard_menu_items ();
 274           unbind_to (specpdl_count, Qnil);
 275           [pool release];
 276           UNBLOCK_INPUT;
 277           return;
 278         }
 279
 280       /* parse stage 2: insert into lucid 'widget_value' structures
 281          [comments in other terms say not to evaluate lisp code here] */
 282       wv = xmalloc_widget_value ();
 283       wv->name = "menubar";
 284       wv->value = 0;
 285       wv->enabled = 1;
 286       wv->button_type = BUTTON_TYPE_NONE;
 287       wv->help = Qnil;
 288       first_wv = wv;
 289
 290       for (i = 0; i < 4*n; i += 4)
 291         {
 292           menu_items_n_panes = submenu_n_panes[i];
 293           wv = digest_single_submenu (submenu_start[i], submenu_end[i],
 294                                       submenu_top_level_items[i]);
 295           if (prev_wv)
 296             prev_wv->next = wv;
 297           else
 298             first_wv->contents = wv;
 299           /* Don't set wv->name here; GC during the loop might relocate it.  */
 300           wv->enabled = 1;
 301           wv->button_type = BUTTON_TYPE_NONE;
 302           prev_wv = wv;
 303         }
 304
 305       set_buffer_internal_1 (prev);
 306
 307       /* Compare the new menu items with previous, and leave off if no change */
 308       /* FIXME: following other terms here, but seems like this should be
 309            done before parse stage 2 above, since its results aren't used */
 310       if (previous_menu_items_used
 311           && (!submenu || (submenu && submenu == last_submenu))
 312           && menu_items_used == previous_menu_items_used)
 313         {
 314           for (i = 0; i < previous_menu_items_used; i++)
 315             /* FIXME: this ALWAYS fails on Buffers menu items.. something
 316                  about their strings causes them to change every time, so we
 317                  double-check failures */
 318             if (!EQ (previous_items[i], AREF (menu_items, i)))
 319               if (!(STRINGP (previous_items[i])
 320                     && STRINGP (AREF (menu_items, i))
 321                     && !strcmp (SDATA (previous_items[i]),
 322                                 SDATA (AREF (menu_items, i)))))
 323                   break;
 324           if (i == previous_menu_items_used)
 325             {
 326               /* No change.. */
 327
 328 #if NSMENUPROFILE
 329               ftime (&tb);
 330               t += 1000*tb.time+tb.millitm;
 331               fprintf (stderr, "NO CHANGE!  CUTTING OUT after %ld msec.\n", t);
 332 #endif
 333
 334               free_menubar_widget_value_tree (first_wv);
 335               discard_menu_items ();
 336               unbind_to (specpdl_count, Qnil);
 337               [pool release];
 338               UNBLOCK_INPUT;
 339               return;
 340             }
 341         }
 342       /* The menu items are different, so store them in the frame */
 343       /* FIXME: this is not correct for single-submenu case */
 344       f->menu_bar_vector = menu_items;
 345       f->menu_bar_items_used = menu_items_used;
 346
 347       /* Calls restore_menu_items, etc., as they were outside */
 348       unbind_to (specpdl_count, Qnil);
 349
 350       /* Parse stage 2a: now GC cannot happen during the lifetime of the
 351          widget_value, so it's safe to store data from a Lisp_String */
 352       wv = first_wv->contents;
 353       for (i = 0; i < ASIZE (items); i += 4)
 354         {
 355           Lisp_Object string;
 356           string = AREF (items, i + 1);
 357           if (NILP (string))
 358             break;
 359 /*           if (submenu && strcmp (submenuTitle, SDATA (string)))
 360                continue; */
 361
 362           wv->name = SSDATA (string);
 363           update_submenu_strings (wv->contents);
 364           wv = wv->next;
 365         }
 366
 367       /* Now, update the NS menu; if we have a submenu, use that, otherwise
 368          create a new menu for each sub and fill it. */
 369       if (submenu)
 370         {
 371           for (wv = first_wv->contents; wv; wv = wv->next)
 372             {
 373               if (!strcmp (submenuTitle, wv->name))
 374                 {
 375                   [submenu fillWithWidgetValue: wv->contents];
 376                   last_submenu = submenu;
 377                   break;
 378                 }
 379             }
 380         }
 381       else
 382         {
 383           [menu fillWithWidgetValue: first_wv->contents];
 384         }
 385
 386     }
 387   else
 388     {
 389       static int n_previous_strings = 0;
 390       static char previous_strings[100][10];
 391       static struct frame *last_f = NULL;
 392       int n;
 393       Lisp_Object string;
 394
 395       wv = xmalloc_widget_value ();
 396       wv->name = "menubar";
 397       wv->value = 0;
 398       wv->enabled = 1;
 399       wv->button_type = BUTTON_TYPE_NONE;
 400       wv->help = Qnil;
 401       first_wv = wv;
 402
 403       /* Make widget-value tree w/ just the top level menu bar strings */
 404       items = FRAME_MENU_BAR_ITEMS (f);
 405       if (NILP (items))
 406         {
 407           free_menubar_widget_value_tree (first_wv);
 408           [pool release];
 409           UNBLOCK_INPUT;
 410           return;
 411         }
 412
 413
 414       /* check if no change.. this mechanism is a bit rough, but ready */
 415       n = ASIZE (items) / 4;
 416       if (f == last_f && n_previous_strings == n)
 417         {
 418           for (i = 0; i<n; i++)
 419             {
 420               string = AREF (items, 4*i+1);
 421
 422               if (EQ (string, make_number (0))) // FIXME: Why???  --Stef
 423                 continue;
 424               if (NILP (string))
 425                 if (previous_strings[i][0])
 426                   break;
 427               else
 428                 continue;
 429               if (memcmp (previous_strings[i], SDATA (string),
 430                           min (10, SBYTES (string) + 1)))
 431                 break;
 432             }
 433
 434           if (i == n)
 435             {
 436               free_menubar_widget_value_tree (first_wv);
 437               [pool release];
 438               UNBLOCK_INPUT;
 439               return;
 440             }
 441         }
 442
 443       [menu clear];
 444       for (i = 0; i < ASIZE (items); i += 4)
 445         {
 446           string = AREF (items, i + 1);
 447           if (NILP (string))
 448             break;
 449
 450           if (n < 100)
 451             memcpy (previous_strings[i/4], SDATA (string),
 452                     min (10, SBYTES (string) + 1));
 453
 454           wv = xmalloc_widget_value ();
 455           wv->name = SSDATA (string);
 456           wv->value = 0;
 457           wv->enabled = 1;
 458           wv->button_type = BUTTON_TYPE_NONE;
 459           wv->help = Qnil;
 460           wv->call_data = (void *) (intptr_t) (-1);
 461
 462 #ifdef NS_IMPL_COCOA
 463           /* we'll update the real copy under app menu when time comes */
 464           if (!strcmp ("Services", wv->name))
 465             {
 466               /* but we need to make sure it will update on demand */
 467               [svcsMenu setFrame: f];
 468             }
 469           else
 470 #endif
 471           [menu addSubmenuWithTitle: wv->name forFrame: f];
 472
 473           if (prev_wv)
 474             prev_wv->next = wv;
 475           else
 476             first_wv->contents = wv;
 477           prev_wv = wv;
 478         }
 479
 480       last_f = f;
 481       if (n < 100)
 482         n_previous_strings = n;
 483       else
 484         n_previous_strings = 0;
 485
 486     }
 487   free_menubar_widget_value_tree (first_wv);
 488
 489
 490 #if NSMENUPROFILE
 491   ftime (&tb);
 492   t += 1000*tb.time+tb.millitm;
 493   fprintf (stderr, "Menu update took %ld msec.\n", t);
 494 #endif
 495
 496   /* set main menu */
 497   if (needsSet)
 498     [NSApp setMainMenu: menu];
 499
 500   [pool release];
 501   UNBLOCK_INPUT;
 502
 503 }
 504
 505
 506 /* Main emacs core entry point for menubar menus: called to indicate that the
 507    frame's menus have changed, and the *step representation should be updated
 508    from Lisp. */
 509 void
 510 set_frame_menubar (struct frame *f, int first_time, int deep_p)
 511 {
 512   ns_update_menubar (f, deep_p, nil);
 513 }
 514
 515
 516 /* ==========================================================================
 517
 518     Menu: class implementation
 519
 520    ========================================================================== */
 521
 522
 523 /* Menu that can define itself from Emacs "widget_value"s and will lazily
 524    update itself when user clicked.  Based on Carbon/AppKit implementation
 525    by Yamamoto Mitsuharu. */
 526 @implementation EmacsMenu
 527
 528 /* override designated initializer */
 529 - initWithTitle: (NSString *)title
 530 {
 531   if (self = [super initWithTitle: title])
 532     [self setAutoenablesItems: NO];
 533   return self;
 534 }
 535
 536
 537 /* used for top-level */
 538 - initWithTitle: (NSString *)title frame: (struct frame *)f
 539 {
 540   [self initWithTitle: title];
 541   frame = f;
 542 #ifdef NS_IMPL_COCOA
 543   [self setDelegate: self];
 544 #endif
 545   return self;
 546 }
 547
 548
 549 - (void)setFrame: (struct frame *)f
 550 {
 551   frame = f;
 552 }
 553
 554 #ifdef NS_IMPL_COCOA
 555 #if MAC_OS_X_VERSION_MAX_ALLOWED < MAC_OS_X_VERSION_10_5
 556 extern NSString *NSMenuDidBeginTrackingNotification;
 557 #endif
 558 #endif
 559
 560 #ifdef NS_IMPL_COCOA
 561 -(void)trackingNotification:(NSNotification *)notification
 562 {
 563   /* Update menu in menuNeedsUpdate only while tracking menus.  */
 564   trackingMenu = ([notification name] == NSMenuDidBeginTrackingNotification
 565                   ? 1 : 0);
 566 }
 567 #endif
 568
 569 /* delegate method called when a submenu is being opened: run a 'deep' call
 570    to set_frame_menubar */
 571 - (void)menuNeedsUpdate: (NSMenu *)menu
 572 {
 573   if (!FRAME_LIVE_P (frame))
 574     return;
 575
 576   /* Cocoa/Carbon will request update on every keystroke
 577      via IsMenuKeyEvent -> CheckMenusForKeyEvent.  These are not needed
 578      since key equivalents are handled through emacs.
 579      On Leopard, even keystroke events generate SystemDefined event.
 580      Third-party applications that enhance mouse / trackpad
 581      interaction, or also VNC/Remote Desktop will send events
 582      of type AppDefined rather than SysDefined.
 583      Menus will fail to show up if they haven't been initialized.
 584      AppDefined events may lack timing data.
 585
 586      Thus, we rely on the didBeginTrackingNotification notification
 587      as above to indicate the need for updates.
 588      From 10.6 on, we could also use -[NSMenu propertiesToUpdate]: In the
 589      key press case, NSMenuPropertyItemImage (e.g.) won't be set.
 590   */
 591   if (trackingMenu == 0
 592       /* Also, don't try this if from an event picked up asynchronously,
 593          as lots of lisp evaluation happens in ns_update_menubar. */
 594       || handling_signal != 0)
 595     return;
 596 /*fprintf (stderr, "Updating menu '%s'\n", [[self title] UTF8String]); NSLog (@"%@\n", event); */
 597   ns_update_menubar (frame, 1, self);
 598 }
 599
 600
 601 - (BOOL)performKeyEquivalent: (NSEvent *)theEvent
 602 {
 603   if (SELECTED_FRAME () && FRAME_NS_P (SELECTED_FRAME ())
 604       && FRAME_NS_VIEW (SELECTED_FRAME ()))
 605     [FRAME_NS_VIEW (SELECTED_FRAME ()) keyDown: theEvent];
 606   return YES;
 607 }
 608
 609
 610 /* Parse a widget_value's key rep (examples: 's-p', 's-S', '(C-x C-s)', '<f13>')
 611    into an accelerator string.  We are only able to display a single character
 612    for an accelerator, together with an optional modifier combination.  (Under
 613    Carbon more control was possible, but in Cocoa multi-char strings passed to
 614    NSMenuItem get ignored.  For now we try to display a super-single letter
 615    combo, and return the others as strings to be appended to the item title.
 616    (This is signaled by setting keyEquivModMask to 0 for now.) */
 617 -(NSString *)parseKeyEquiv: (const char *)key
 618 {
 619   const char *tpos = key;
 620   keyEquivModMask = NSCommandKeyMask;
 621
 622   if (!key || !strlen (key))
 623     return @"";
 624
 625   while (*tpos == ' ' || *tpos == '(')
 626     tpos++;
 627   if ((*tpos == 's') && (*(tpos+1) == '-'))
 628     {
 629       return [NSString stringWithFormat: @"%c", tpos[2]];
 630     }
 631   keyEquivModMask = 0; /* signal */
 632   return [NSString stringWithUTF8String: tpos];
 633 }
 634
 635
 636 - (NSMenuItem *)addItemWithWidgetValue: (void *)wvptr
 637 {
 638   NSMenuItem *item;
 639   widget_value *wv = (widget_value *)wvptr;
 640
 641   if (menu_separator_name_p (wv->name))
 642     {
 643       item = [NSMenuItem separatorItem];
 644       [self addItem: item];
 645     }
 646   else
 647     {
 648       NSString *title, *keyEq;
 649       title = [NSString stringWithUTF8String: wv->name];
 650       if (title == nil)
 651         title = @"< ? >";  /* (get out in the open so we know about it) */
 652
 653       keyEq = [self parseKeyEquiv: wv->key];
 654 #ifdef NS_IMPL_COCOA
 655       /* OS X just ignores modifier strings longer than one character */
 656       if (keyEquivModMask == 0)
 657         title = [title stringByAppendingFormat: @" (%@)", keyEq];
 658 #endif
 659
 660       item = [self addItemWithTitle: (NSString *)title
 661                              action: @selector (menuDown:)
 662                       keyEquivalent: keyEq];
 663       [item setKeyEquivalentModifierMask: keyEquivModMask];
 664
 665       [item setEnabled: wv->enabled];
 666
 667       /* Draw radio buttons and tickboxes */
 668       if (wv->selected && (wv->button_type == BUTTON_TYPE_TOGGLE ||
 669                            wv->button_type == BUTTON_TYPE_RADIO))
 670         [item setState: NSOnState];
 671       else
 672         [item setState: NSOffState];
 673
 674       [item setTag: (NSInteger)wv->call_data];
 675     }
 676
 677   return item;
 678 }
 679
 680
 681 /* convenience */
 682 -(void)clear
 683 {
 684   int n;
 685
 686   for (n = [self numberOfItems]-1; n >= 0; n--)
 687     {
 688       NSMenuItem *item = [self itemAtIndex: n];
 689       NSString *title = [item title];
 690       if (([title length] == 0  /* OSX 10.5 */
 691            || [ns_app_name isEqualToString: title]  /* from 10.6 on */
 692            || [@"Apple" isEqualToString: title]) /* older */
 693           && ![item isSeparatorItem])
 694         continue;
 695       [self removeItemAtIndex: n];
 696     }
 697 }
 698
 699
 700 - (void)fillWithWidgetValue: (void *)wvptr
 701 {
 702   widget_value *wv = (widget_value *)wvptr;
 703
 704   /* clear existing contents */
 705   [self setMenuChangedMessagesEnabled: NO];
 706   [self clear];
 707
 708   /* add new contents */
 709   for (; wv != NULL; wv = wv->next)
 710     {
 711       NSMenuItem *item = [self addItemWithWidgetValue: wv];
 712
 713       if (wv->contents)
 714         {
 715           EmacsMenu *submenu = [[EmacsMenu alloc] initWithTitle: [item title]];
 716
 717           [self setSubmenu: submenu forItem: item];
 718           [submenu fillWithWidgetValue: wv->contents];
 719           [submenu release];
 720           [item setAction: nil];
 721         }
 722     }
 723
 724   [self setMenuChangedMessagesEnabled: YES];
 725 #ifdef NS_IMPL_GNUSTEP
 726   if ([[self window] isVisible])
 727     [self sizeToFit];
 728 #else
 729 #if MAC_OS_X_VERSION_MAX_ALLOWED < MAC_OS_X_VERSION_10_2
 730   if ([self supermenu] == nil)
 731     [self sizeToFit];
 732 #endif
 733 #endif
 734 }
 735
 736
 737 /* adds an empty submenu and returns it */
 738 - (EmacsMenu *)addSubmenuWithTitle: (const char *)title forFrame: (struct frame *)f
 739 {
 740   NSString *titleStr = [NSString stringWithUTF8String: title];
 741   NSMenuItem *item = [self addItemWithTitle: titleStr
 742                                      action: nil /*@selector (menuDown:) */
 743                               keyEquivalent: @""];
 744   EmacsMenu *submenu = [[EmacsMenu alloc] initWithTitle: titleStr frame: f];
 745   [self setSubmenu: submenu forItem: item];
 746   [submenu release];
 747   return submenu;
 748 }
 749
 750 /* run a menu in popup mode */
 751 - (Lisp_Object)runMenuAt: (NSPoint)p forFrame: (struct frame *)f
 752                  keymaps: (int)keymaps
 753 {
 754   EmacsView *view = FRAME_NS_VIEW (f);
 755   NSEvent *e, *event;
 756   long retVal;
 757
 758 /*   p = [view convertPoint:p fromView: nil]; */
 759   p.y = NSHeight ([view frame]) - p.y;
 760   e = [[view window] currentEvent];
 761    event = [NSEvent mouseEventWithType: NSRightMouseDown
 762                               location: p
 763                          modifierFlags: 0
 764                              timestamp: [e timestamp]
 765                           windowNumber: [[view window] windowNumber]
 766                                context: [e context]
 767                            eventNumber: 0/*[e eventNumber] */
 768                             clickCount: 1
 769                               pressure: 0];
 770
 771   context_menu_value = -1;
 772   [NSMenu popUpContextMenu: self withEvent: event forView: view];
 773   retVal = context_menu_value;
 774   context_menu_value = 0;
 775   return retVal > 0
 776       ? find_and_return_menu_selection (f, keymaps, (void *)retVal)
 777       : Qnil;
 778 }
 779
 780 @end  /* EmacsMenu */
 781
 782
 783
 784 /* ==========================================================================
 785
 786     Context Menu: implementing functions
 787
 788    ========================================================================== */
 789
 790 Lisp_Object
 791 ns_menu_show (FRAME_PTR f, int x, int y, int for_click, int keymaps,
 792               Lisp_Object title, const char **error)
 793 {
 794   EmacsMenu *pmenu;
 795   NSPoint p;
 796   Lisp_Object window, tem, keymap;
 797   ptrdiff_t specpdl_count = SPECPDL_INDEX ();
 798   widget_value *wv, *first_wv = 0;
 799
 800   p.x = x; p.y = y;
 801
 802   /* now parse stage 2 as in ns_update_menubar */
 803   wv = xmalloc_widget_value ();
 804   wv->name = "contextmenu";
 805   wv->value = 0;
 806   wv->enabled = 1;
 807   wv->button_type = BUTTON_TYPE_NONE;
 808   wv->help = Qnil;
 809   first_wv = wv;
 810
 811 #if 0
 812   /* FIXME: a couple of one-line differences prevent reuse */
 813   wv = digest_single_submenu (0, menu_items_used, Qnil);
 814 #else
 815   {
 816   widget_value *save_wv = 0, *prev_wv = 0;
 817   widget_value **submenu_stack
 818     = alloca (menu_items_used * sizeof *submenu_stack);
 819 /*   Lisp_Object *subprefix_stack
 820        = alloca (menu_items_used * sizeof *subprefix_stack); */
 821   int submenu_depth = 0;
 822   int first_pane = 1;
 823   int i;
 824
 825   /* Loop over all panes and items, filling in the tree.  */
 826   i = 0;
 827   while (i < menu_items_used)
 828     {
 829       if (EQ (AREF (menu_items, i), Qnil))
 830         {
 831           submenu_stack[submenu_depth++] = save_wv;
 832           save_wv = prev_wv;
 833           prev_wv = 0;
 834           first_pane = 1;
 835           i++;
 836         }
 837       else if (EQ (AREF (menu_items, i), Qlambda))
 838         {
 839           prev_wv = save_wv;
 840           save_wv = submenu_stack[--submenu_depth];
 841           first_pane = 0;
 842           i++;
 843         }
 844       else if (EQ (AREF (menu_items, i), Qt)
 845                && submenu_depth != 0)
 846         i += MENU_ITEMS_PANE_LENGTH;
 847       /* Ignore a nil in the item list.
 848          It's meaningful only for dialog boxes.  */
 849       else if (EQ (AREF (menu_items, i), Qquote))
 850         i += 1;
 851       else if (EQ (AREF (menu_items, i), Qt))
 852         {
 853           /* Create a new pane.  */
 854           Lisp_Object pane_name, prefix;
 855           const char *pane_string;
 856
 857           pane_name = AREF (menu_items, i + MENU_ITEMS_PANE_NAME);
 858           prefix = AREF (menu_items, i + MENU_ITEMS_PANE_PREFIX);
 859
 860 #ifndef HAVE_MULTILINGUAL_MENU
 861           if (STRINGP (pane_name) && STRING_MULTIBYTE (pane_name))
 862             {
 863               pane_name = ENCODE_MENU_STRING (pane_name);
 864               ASET (menu_items, i + MENU_ITEMS_PANE_NAME, pane_name);
 865             }
 866 #endif
 867           pane_string = (NILP (pane_name)
 868                          ? "" : SSDATA (pane_name));
 869           /* If there is just one top-level pane, put all its items directly
 870              under the top-level menu.  */
 871           if (menu_items_n_panes == 1)
 872             pane_string = "";
 873
 874           /* If the pane has a meaningful name,
 875              make the pane a top-level menu item
 876              with its items as a submenu beneath it.  */
 877           if (!keymaps && strcmp (pane_string, ""))
 878             {
 879               wv = xmalloc_widget_value ();
 880               if (save_wv)
 881                 save_wv->next = wv;
 882               else
 883                 first_wv->contents = wv;
 884               wv->name = pane_string;
 885               if (keymaps && !NILP (prefix))
 886                 wv->name++;
 887               wv->value = 0;
 888               wv->enabled = 1;
 889               wv->button_type = BUTTON_TYPE_NONE;
 890               wv->help = Qnil;
 891               save_wv = wv;
 892               prev_wv = 0;
 893             }
 894           else if (first_pane)
 895             {
 896               save_wv = wv;
 897               prev_wv = 0;
 898             }
 899           first_pane = 0;
 900           i += MENU_ITEMS_PANE_LENGTH;
 901         }
 902       else
 903         {
 904           /* Create a new item within current pane.  */
 905           Lisp_Object item_name, enable, descrip, def, type, selected, help;
 906           item_name = AREF (menu_items, i + MENU_ITEMS_ITEM_NAME);
 907           enable = AREF (menu_items, i + MENU_ITEMS_ITEM_ENABLE);
 908           descrip = AREF (menu_items, i + MENU_ITEMS_ITEM_EQUIV_KEY);
 909           def = AREF (menu_items, i + MENU_ITEMS_ITEM_DEFINITION);
 910           type = AREF (menu_items, i + MENU_ITEMS_ITEM_TYPE);
 911           selected = AREF (menu_items, i + MENU_ITEMS_ITEM_SELECTED);
 912           help = AREF (menu_items, i + MENU_ITEMS_ITEM_HELP);
 913
 914 #ifndef HAVE_MULTILINGUAL_MENU
 915           if (STRINGP (item_name) && STRING_MULTIBYTE (item_name))
 916             {
 917               item_name = ENCODE_MENU_STRING (item_name);
 918               ASET (menu_items, i + MENU_ITEMS_ITEM_NAME, item_name);
 919             }
 920
 921           if (STRINGP (descrip) && STRING_MULTIBYTE (descrip))
 922             {
 923               descrip = ENCODE_MENU_STRING (descrip);
 924               ASET (menu_items, i + MENU_ITEMS_ITEM_EQUIV_KEY, descrip);
 925             }
 926 #endif /* not HAVE_MULTILINGUAL_MENU */
 927
 928           wv = xmalloc_widget_value ();
 929           if (prev_wv)
 930             prev_wv->next = wv;
 931           else
 932             save_wv->contents = wv;
 933           wv->name = SSDATA (item_name);
 934           if (!NILP (descrip))
 935             wv->key = SSDATA (descrip);
 936           wv->value = 0;
 937           /* If this item has a null value,
 938              make the call_data null so that it won't display a box
 939              when the mouse is on it.  */
 940           wv->call_data
 941               = !NILP (def) ? (void *) &AREF (menu_items, i) : 0;
 942           wv->enabled = !NILP (enable);
 943
 944           if (NILP (type))
 945             wv->button_type = BUTTON_TYPE_NONE;
 946           else if (EQ (type, QCtoggle))
 947             wv->button_type = BUTTON_TYPE_TOGGLE;
 948           else if (EQ (type, QCradio))
 949             wv->button_type = BUTTON_TYPE_RADIO;
 950           else
 951             abort ();
 952
 953           wv->selected = !NILP (selected);
 954
 955           if (! STRINGP (help))
 956             help = Qnil;
 957
 958           wv->help = help;
 959
 960           prev_wv = wv;
 961
 962           i += MENU_ITEMS_ITEM_LENGTH;
 963         }
 964     }
 965   }
 966 #endif
 967
 968   if (!NILP (title))
 969     {
 970       widget_value *wv_title = xmalloc_widget_value ();
 971       widget_value *wv_sep = xmalloc_widget_value ();
 972
 973       /* Maybe replace this separator with a bitmap or owner-draw item
 974          so that it looks better.  Having two separators looks odd.  */
 975       wv_sep->name = "--";
 976       wv_sep->next = first_wv->contents;
 977       wv_sep->help = Qnil;
 978
 979 #ifndef HAVE_MULTILINGUAL_MENU
 980       if (STRING_MULTIBYTE (title))
 981         title = ENCODE_MENU_STRING (title);
 982 #endif
 983
 984       wv_title->name = SSDATA (title);
 985       wv_title->enabled = NO;
 986       wv_title->button_type = BUTTON_TYPE_NONE;
 987       wv_title->help = Qnil;
 988       wv_title->next = wv_sep;
 989       first_wv->contents = wv_title;
 990     }
 991
 992   pmenu = [[EmacsMenu alloc] initWithTitle:
 993                                [NSString stringWithUTF8String: SDATA (title)]];
 994   [pmenu fillWithWidgetValue: first_wv->contents];
 995   free_menubar_widget_value_tree (first_wv);
 996   unbind_to (specpdl_count, Qnil);
 997
 998   popup_activated_flag = 1;
 999   tem = [pmenu runMenuAt: p forFrame: f keymaps: keymaps];
1000   popup_activated_flag = 0;
1001   [[FRAME_NS_VIEW (SELECTED_FRAME ()) window] makeKeyWindow];
1002
1003   return tem;
1004 }
1005
1006
1007 /* ==========================================================================
1008
1009     Toolbar: externally-called functions
1010
1011    ========================================================================== */
1012
1013 void
1014 free_frame_tool_bar (FRAME_PTR f)
1015 /* --------------------------------------------------------------------------
1016     Under NS we just hide the toolbar until it might be needed again.
1017    -------------------------------------------------------------------------- */
1018 {
1019   BLOCK_INPUT;
1020   [[FRAME_NS_VIEW (f) toolbar] setVisible: NO];
1021   FRAME_TOOLBAR_HEIGHT (f) = 0;
1022   UNBLOCK_INPUT;
1023 }
1024
1025 void
1026 update_frame_tool_bar (FRAME_PTR f)
1027 /* --------------------------------------------------------------------------
1028     Update toolbar contents
1029    -------------------------------------------------------------------------- */
1030 {
1031   int i;
1032   EmacsView *view = FRAME_NS_VIEW (f);
1033   NSWindow *window = [view window];
1034   EmacsToolbar *toolbar = [view toolbar];
1035
1036   BLOCK_INPUT;
1037   [toolbar clearActive];
1038
1039   /* update EmacsToolbar as in GtkUtils, build items list */
1040   for (i = 0; i < f->n_tool_bar_items; ++i)
1041     {
1042 #define TOOLPROP(IDX) AREF (f->tool_bar_items, \
1043                             i * TOOL_BAR_ITEM_NSLOTS + (IDX))
1044
1045       BOOL enabled_p = !NILP (TOOLPROP (TOOL_BAR_ITEM_ENABLED_P));
1046       BOOL selected_p = !NILP (TOOLPROP (TOOL_BAR_ITEM_SELECTED_P));
1047       int idx;
1048       ptrdiff_t img_id;
1049       struct image *img;
1050       Lisp_Object image;
1051       Lisp_Object helpObj;
1052       const char *helpText;
1053
1054       /* If image is a vector, choose the image according to the
1055          button state.  */
1056       image = TOOLPROP (TOOL_BAR_ITEM_IMAGES);
1057       if (VECTORP (image))
1058         {
1059           /* NS toolbar auto-computes disabled and selected images */
1060           idx = TOOL_BAR_IMAGE_ENABLED_SELECTED;
1061           eassert (ASIZE (image) >= idx);
1062           image = AREF (image, idx);
1063         }
1064       else
1065         {
1066           idx = -1;
1067         }
1068       helpObj = TOOLPROP (TOOL_BAR_ITEM_HELP);
1069       if (NILP (helpObj))
1070         helpObj = TOOLPROP (TOOL_BAR_ITEM_CAPTION);
1071       helpText = NILP (helpObj) ? "" : SSDATA (helpObj);
1072
1073       /* Ignore invalid image specifications.  */
1074       if (!valid_image_p (image))
1075         {
1076           /* Don't log anything, GNUS makes invalid images all the time.  */
1077           continue;
1078         }
1079
1080       img_id = lookup_image (f, image);
1081       img = IMAGE_FROM_ID (f, img_id);
1082       prepare_image_for_display (f, img);
1083
1084       if (img->load_failed_p || img->pixmap == nil)
1085         {
1086           NSLog (@"Could not prepare toolbar image for display.");
1087           continue;
1088         }
1089
1090       [toolbar addDisplayItemWithImage: img->pixmap idx: i helpText: helpText
1091                                enabled: enabled_p];
1092 #undef TOOLPROP
1093     }
1094
1095   if (![toolbar isVisible])
1096       [toolbar setVisible: YES];
1097
1098   if ([toolbar changed])
1099     {
1100       /* inform app that toolbar has changed */
1101       NSDictionary *dict = [toolbar configurationDictionary];
1102       NSMutableDictionary *newDict = [dict mutableCopy];
1103       NSEnumerator *keys = [[dict allKeys] objectEnumerator];
1104       NSObject *key;
1105       while ((key = [keys nextObject]) != nil)
1106         {
1107           NSObject *val = [dict objectForKey: key];
1108           if ([val isKindOfClass: [NSArray class]])
1109             {
1110               [newDict setObject:
1111                          [toolbar toolbarDefaultItemIdentifiers: toolbar]
1112                           forKey: key];
1113               break;
1114             }
1115         }
1116       [toolbar setConfigurationFromDictionary: newDict];
1117       [newDict release];
1118     }
1119
1120   FRAME_TOOLBAR_HEIGHT (f) =
1121     NSHeight ([window frameRectForContentRect: NSMakeRect (0, 0, 0, 0)])
1122     - FRAME_NS_TITLEBAR_HEIGHT (f);
1123   UNBLOCK_INPUT;
1124 }
1125
1126
1127 /* ==========================================================================
1128
1129     Toolbar: class implementation
1130
1131    ========================================================================== */
1132
1133 @implementation EmacsToolbar
1134
1135 - initForView: (EmacsView *)view withIdentifier: (NSString *)identifier
1136 {
1137   self = [super initWithIdentifier: identifier];
1138   emacsView = view;
1139   [self setDisplayMode: NSToolbarDisplayModeIconOnly];
1140   [self setSizeMode: NSToolbarSizeModeSmall];
1141   [self setDelegate: self];
1142   identifierToItem = [[NSMutableDictionary alloc] initWithCapacity: 10];
1143   activeIdentifiers = [[NSMutableArray alloc] initWithCapacity: 8];
1144   prevEnablement = enablement = 0L;
1145   return self;
1146 }
1147
1148 - (void)dealloc
1149 {
1150   [prevIdentifiers release];
1151   [activeIdentifiers release];
1152   [identifierToItem release];
1153   [super dealloc];
1154 }
1155
1156 - (void) clearActive
1157 {
1158   [prevIdentifiers release];
1159   prevIdentifiers = [activeIdentifiers copy];
1160   [activeIdentifiers removeAllObjects];
1161   prevEnablement = enablement;
1162   enablement = 0L;
1163 }
1164
1165 - (BOOL) changed
1166 {
1167   return [activeIdentifiers isEqualToArray: prevIdentifiers] &&
1168     enablement == prevEnablement ? NO : YES;
1169 }
1170
1171 - (void) addDisplayItemWithImage: (EmacsImage *)img idx: (int)idx
1172                         helpText: (const char *)help enabled: (BOOL)enabled
1173 {
1174   /* 1) come up w/identifier */
1175   NSString *identifier
1176       = [NSString stringWithFormat: @"%u", [img hash]];
1177
1178   /* 2) create / reuse item */
1179   NSToolbarItem *item = [identifierToItem objectForKey: identifier];
1180   if (item == nil)
1181     {
1182       item = [[[NSToolbarItem alloc] initWithItemIdentifier: identifier]
1183                autorelease];
1184       [item setImage: img];
1185       [item setToolTip: [NSString stringWithUTF8String: help]];
1186       [item setTarget: emacsView];
1187       [item setAction: @selector (toolbarClicked:)];
1188     }
1189
1190   [item setTag: idx];
1191   [item setEnabled: enabled];
1192
1193   /* 3) update state */
1194   [identifierToItem setObject: item forKey: identifier];
1195   [activeIdentifiers addObject: identifier];
1196   enablement = (enablement << 1) | (enabled == YES);
1197 }
1198
1199 /* This overrides super's implementation, which automatically sets
1200    all items to enabled state (for some reason). */
1201 - (void)validateVisibleItems { }
1202
1203
1204 /* delegate methods */
1205
1206 - (NSToolbarItem *)toolbar: (NSToolbar *)toolbar
1207       itemForItemIdentifier: (NSString *)itemIdentifier
1208   willBeInsertedIntoToolbar: (BOOL)flag
1209 {
1210   /* look up NSToolbarItem by identifier and return... */
1211   return [identifierToItem objectForKey: itemIdentifier];
1212 }
1213
1214 - (NSArray *)toolbarDefaultItemIdentifiers: (NSToolbar *)toolbar
1215 {
1216   /* return entire set.. */
1217   return activeIdentifiers;
1218 }
1219
1220 /* for configuration palette (not yet supported) */
1221 - (NSArray *)toolbarAllowedItemIdentifiers: (NSToolbar *)toolbar
1222 {
1223   /* return entire set... */
1224   return [identifierToItem allKeys];
1225 }
1226
1227 /* optional and unneeded */
1228 /* - toolbarWillAddItem: (NSNotification *)notification { } */
1229 /* - toolbarDidRemoveItem: (NSNotification *)notification { } */
1230 /* - (NSArray *)toolbarSelectableItemIdentifiers: (NSToolbar *)toolbar */
1231
1232 @end  /* EmacsToolbar */
1233
1234
1235
1236 /* ==========================================================================
1237
1238     Tooltip: class implementation
1239
1240    ========================================================================== */
1241
1242 /* Needed because NeXTstep does not provide enough control over tooltip
1243    display. */
1244 @implementation EmacsTooltip
1245
1246 - init
1247 {
1248   NSColor *col = [NSColor colorWithCalibratedRed: 1.0 green: 1.0
1249                                             blue: 0.792 alpha: 0.95];
1250   NSFont *font = [NSFont toolTipsFontOfSize: 0];
1251   NSFont *sfont = [font screenFont];
1252   int height = [sfont ascender] - [sfont descender];
1253 /*[font boundingRectForFont].size.height; */
1254   NSRect r = NSMakeRect (0, 0, 100, height+6);
1255
1256   textField = [[NSTextField alloc] initWithFrame: r];
1257   [textField setFont: font];
1258   [textField setBackgroundColor: col];
1259
1260   [textField setEditable: NO];
1261   [textField setSelectable: NO];
1262   [textField setBordered: NO];
1263   [textField setBezeled: NO];
1264   [textField setDrawsBackground: YES];
1265
1266   win = [[NSWindow alloc]
1267             initWithContentRect: [textField frame]
1268                       styleMask: 0
1269                         backing: NSBackingStoreBuffered
1270                           defer: YES];
1271   [win setHasShadow: YES];
1272   [win setReleasedWhenClosed: NO];
1273   [win setDelegate: self];
1274   [[win contentView] addSubview: textField];
1275 /*  [win setBackgroundColor: col]; */
1276   [win setOpaque: NO];
1277
1278   return self;
1279 }
1280
1281 - (void) dealloc
1282 {
1283   [win close];
1284   [win release];
1285   [textField release];
1286   [super dealloc];
1287 }
1288
1289 - (void) setText: (char *)text
1290 {
1291   NSString *str = [NSString stringWithUTF8String: text];
1292   NSRect r  = [textField frame];
1293   NSSize tooltipDims;
1294
1295   [textField setStringValue: str];
1296   tooltipDims = [[textField cell] cellSize];
1297
1298   r.size.width = tooltipDims.width;
1299   r.size.height = tooltipDims.height;
1300   [textField setFrame: r];
1301 }
1302
1303 - (void) showAtX: (int)x Y: (int)y for: (int)seconds
1304 {
1305   NSRect wr = [win frame];
1306
1307   wr.origin = NSMakePoint (x, y);
1308   wr.size = [textField frame].size;
1309
1310   [win setFrame: wr display: YES];
1311   [win orderFront: self];
1312   [win display];
1313   timer = [NSTimer scheduledTimerWithTimeInterval: (float)seconds target: self
1314                                          selector: @selector (hide)
1315                                          userInfo: nil repeats: NO];
1316   [timer retain];
1317 }
1318
1319 - (void) hide
1320 {
1321   [win close];
1322   if (timer != nil)
1323     {
1324       if ([timer isValid])
1325         [timer invalidate];
1326       [timer release];
1327       timer = nil;
1328     }
1329 }
1330
1331 - (BOOL) isActive
1332 {
1333   return timer != nil;
1334 }
1335
1336 - (NSRect) frame
1337 {
1338   return [textField frame];
1339 }
1340
1341 @end  /* EmacsTooltip */
1342
1343
1344
1345 /* ==========================================================================
1346
1347     Popup Dialog: implementing functions
1348
1349    ========================================================================== */
1350
1351
1352 static Lisp_Object
1353 pop_down_menu (Lisp_Object arg)
1354 {
1355   struct Lisp_Save_Value *p = XSAVE_VALUE (arg);
1356   if (popup_activated_flag)
1357     {
1358       popup_activated_flag = 0;
1359       BLOCK_INPUT;
1360       [NSApp endModalSession: popupSession];
1361       [((EmacsDialogPanel *) (p->pointer)) close];
1362       [[FRAME_NS_VIEW (SELECTED_FRAME ()) window] makeKeyWindow];
1363       UNBLOCK_INPUT;
1364     }
1365   return Qnil;
1366 }
1367
1368
1369 Lisp_Object
1370 ns_popup_dialog (Lisp_Object position, Lisp_Object contents, Lisp_Object header)
1371 {
1372   id dialog;
1373   Lisp_Object window, tem, title;
1374   struct frame *f;
1375   NSPoint p;
1376   BOOL isQ;
1377
1378   NSTRACE (x-popup-dialog);
1379
1380   check_ns ();
1381
1382   isQ = NILP (header);
1383
1384   if (EQ (position, Qt)
1385       || (CONSP (position) && (EQ (XCAR (position), Qmenu_bar)
1386                                || EQ (XCAR (position), Qtool_bar))))
1387     {
1388       window = selected_window;
1389     }
1390   else if (CONSP (position))
1391     {
1392       Lisp_Object tem;
1393       tem = Fcar (position);
1394       if (XTYPE (tem) == Lisp_Cons)
1395         window = Fcar (Fcdr (position));
1396       else
1397         {
1398           tem = Fcar (Fcdr (position));  /* EVENT_START (position) */
1399           window = Fcar (tem);       /* POSN_WINDOW (tem) */
1400         }
1401     }
1402   else if (WINDOWP (position) || FRAMEP (position))
1403     {
1404       window = position;
1405     }
1406   else
1407     window = Qnil;
1408
1409   if (FRAMEP (window))
1410     f = XFRAME (window);
1411   else if (WINDOWP (window))
1412     {
1413       CHECK_LIVE_WINDOW (window);
1414       f = XFRAME (WINDOW_FRAME (XWINDOW (window)));
1415     }
1416   else
1417     CHECK_WINDOW (window);
1418
1419   p.x = (int)f->left_pos + ((int)FRAME_COLUMN_WIDTH (f) * f->text_cols)/2;
1420   p.y = (int)f->top_pos + (FRAME_LINE_HEIGHT (f) * f->text_lines)/2;
1421
1422   title = Fcar (contents);
1423   CHECK_STRING (title);
1424
1425   if (NILP (Fcar (Fcdr (contents))))
1426     /* No buttons specified, add an "Ok" button so users can pop down
1427        the dialog.  */
1428     contents = Fcons (title, Fcons (Fcons (build_string ("Ok"), Qt), Qnil));
1429
1430   BLOCK_INPUT;
1431   dialog = [[EmacsDialogPanel alloc] initFromContents: contents
1432                                            isQuestion: isQ];
1433   {
1434     ptrdiff_t specpdl_count = SPECPDL_INDEX ();
1435     record_unwind_protect (pop_down_menu, make_save_value (dialog, 0));
1436     popup_activated_flag = 1;
1437     tem = [dialog runDialogAt: p];
1438     unbind_to (specpdl_count, Qnil);  /* calls pop_down_menu */
1439   }
1440   UNBLOCK_INPUT;
1441
1442   return tem;
1443 }
1444
1445
1446 /* ==========================================================================
1447
1448     Popup Dialog: class implementation
1449
1450    ========================================================================== */
1451
1452 @interface FlippedView : NSView
1453 {
1454 }
1455 @end
1456
1457 @implementation FlippedView
1458 - (BOOL)isFlipped
1459 {
1460   return YES;
1461 }
1462 @end
1463
1464 @implementation EmacsDialogPanel
1465
1466 #define SPACER          8.0
1467 #define ICONSIZE        64.0
1468 #define TEXTHEIGHT      20.0
1469 #define MINCELLWIDTH    90.0
1470
1471 - initWithContentRect: (NSRect)contentRect styleMask: (NSUInteger)aStyle
1472               backing: (NSBackingStoreType)backingType defer: (BOOL)flag
1473 {
1474   NSSize spacing = {SPACER, SPACER};
1475   NSRect area;
1476   char this_cmd_name[80];
1477   id cell;
1478   static NSImageView *imgView;
1479   static FlippedView *contentView;
1480
1481   if (imgView == nil)
1482     {
1483       NSImage *img;
1484       area.origin.x   = 3*SPACER;
1485       area.origin.y   = 2*SPACER;
1486       area.size.width = ICONSIZE;
1487       area.size.height= ICONSIZE;
1488       img = [[NSImage imageNamed: @"NSApplicationIcon"] copy];
1489       [img setScalesWhenResized: YES];
1490       [img setSize: NSMakeSize (ICONSIZE, ICONSIZE)];
1491       imgView = [[NSImageView alloc] initWithFrame: area];
1492       [imgView setImage: img];
1493       [imgView setEditable: NO];
1494       [img release];
1495     }
1496
1497   aStyle = NSTitledWindowMask;
1498   flag = YES;
1499   rows = 0;
1500   cols = 1;
1501   [super initWithContentRect: contentRect styleMask: aStyle
1502                      backing: backingType defer: flag];
1503   contentView = [[FlippedView alloc] initWithFrame: [[self contentView] frame]];
1504   [self setContentView: contentView];
1505
1506   [[self contentView] setAutoresizesSubviews: YES];
1507
1508   [[self contentView] addSubview: imgView];
1509   [self setTitle: @""];
1510
1511   area.origin.x   += ICONSIZE+2*SPACER;
1512 /*  area.origin.y   = TEXTHEIGHT; ICONSIZE/2-10+SPACER; */
1513   area.size.width = 400;
1514   area.size.height= TEXTHEIGHT;
1515   command = [[[NSTextField alloc] initWithFrame: area] autorelease];
1516   [[self contentView] addSubview: command];
1517   [command setStringValue: ns_app_name];
1518   [command setDrawsBackground: NO];
1519   [command setBezeled: NO];
1520   [command setSelectable: NO];
1521   [command setFont: [NSFont boldSystemFontOfSize: 13.0]];
1522
1523 /*  area.origin.x   = ICONSIZE+2*SPACER;
1524   area.origin.y   = TEXTHEIGHT + 2*SPACER;
1525   area.size.width = 400;
1526   area.size.height= 2;
1527   tem = [[[NSBox alloc] initWithFrame: area] autorelease];
1528   [[self contentView] addSubview: tem];
1529   [tem setTitlePosition: NSNoTitle];
1530   [tem setAutoresizingMask: NSViewWidthSizable];*/
1531
1532 /*  area.origin.x = ICONSIZE+2*SPACER; */
1533   area.origin.y += TEXTHEIGHT+SPACER;
1534   area.size.width = 400;
1535   area.size.height= TEXTHEIGHT;
1536   title = [[[NSTextField alloc] initWithFrame: area] autorelease];
1537   [[self contentView] addSubview: title];
1538   [title setDrawsBackground: NO];
1539   [title setBezeled: NO];
1540   [title setSelectable: NO];
1541   [title setFont: [NSFont systemFontOfSize: 11.0]];
1542
1543   cell = [[[NSButtonCell alloc] initTextCell: @""] autorelease];
1544   [cell setBordered: NO];
1545   [cell setEnabled: NO];
1546   [cell setCellAttribute: NSCellIsInsetButton to: 8];
1547   [cell setBezelStyle: NSRoundedBezelStyle];
1548
1549   matrix = [[NSMatrix alloc] initWithFrame: contentRect
1550                                       mode: NSHighlightModeMatrix
1551                                  prototype: cell
1552                               numberOfRows: 0
1553                            numberOfColumns: 1];
1554   [[self contentView] addSubview: matrix];
1555   [matrix release];
1556   [matrix setFrameOrigin: NSMakePoint (area.origin.x,
1557                                       area.origin.y + (TEXTHEIGHT+3*SPACER))];
1558   [matrix setIntercellSpacing: spacing];
1559
1560   [self setOneShot: YES];
1561   [self setReleasedWhenClosed: YES];
1562   [self setHidesOnDeactivate: YES];
1563   return self;
1564 }
1565
1566
1567 - (BOOL)windowShouldClose: (id)sender
1568 {
1569   [NSApp stopModalWithCode: XHASH (Qnil)]; // FIXME: BIG UGLY HACK!!
1570   return NO;
1571 }
1572
1573
1574 void process_dialog (id window, Lisp_Object list)
1575 {
1576   Lisp_Object item;
1577   int row = 0;
1578
1579   for (; XTYPE (list) == Lisp_Cons; list = XCDR (list))
1580     {
1581       item = XCAR (list);
1582       if (XTYPE (item) == Lisp_String)
1583         {
1584           [window addString: SDATA (item) row: row++];
1585         }
1586       else if (XTYPE (item) == Lisp_Cons)
1587         {
1588           [window addButton: SDATA (XCAR (item))
1589                       value: XCDR (item) row: row++];
1590         }
1591       else if (NILP (item))
1592         {
1593           [window addSplit];
1594           row = 0;
1595         }
1596     }
1597 }
1598
1599
1600 - addButton: (char *)str value: (Lisp_Object)val row: (int)row
1601 {
1602   id cell;
1603
1604   if (row >= rows)
1605     {
1606       [matrix addRow];
1607       rows++;
1608     }
1609   cell = [matrix cellAtRow: row column: cols-1];
1610   [cell setTarget: self];
1611   [cell setAction: @selector (clicked: )];
1612   [cell setTitle: [NSString stringWithUTF8String: str]];
1613   [cell setTag: XHASH (val)];   // FIXME: BIG UGLY HACK!!
1614   [cell setBordered: YES];
1615   [cell setEnabled: YES];
1616
1617   return self;
1618 }
1619
1620
1621 - addString: (char *)str row: (int)row
1622 {
1623   id cell;
1624
1625   if (row >= rows)
1626     {
1627       [matrix addRow];
1628       rows++;
1629     }
1630   cell = [matrix cellAtRow: row column: cols-1];
1631   [cell setTitle: [NSString stringWithUTF8String: str]];
1632   [cell setBordered: YES];
1633   [cell setEnabled: NO];
1634
1635   return self;
1636 }
1637
1638
1639 - addSplit
1640 {
1641   [matrix addColumn];
1642   cols++;
1643   return self;
1644 }
1645
1646
1647 - clicked: sender
1648 {
1649   NSArray *sellist = nil;
1650   EMACS_INT seltag;
1651
1652   sellist = [sender selectedCells];
1653   if ([sellist count]<1)
1654     return self;
1655
1656   seltag = [[sellist objectAtIndex: 0] tag];
1657   if (seltag != XHASH (Qundefined)) // FIXME: BIG UGLY HACK!!
1658     [NSApp stopModalWithCode: seltag];
1659   return self;
1660 }
1661
1662
1663 - initFromContents: (Lisp_Object)contents isQuestion: (BOOL)isQ
1664 {
1665   Lisp_Object head;
1666   [super init];
1667
1668   if (XTYPE (contents) == Lisp_Cons)
1669     {
1670       head = Fcar (contents);
1671       process_dialog (self, Fcdr (contents));
1672     }
1673   else
1674     head = contents;
1675
1676   if (XTYPE (head) == Lisp_String)
1677       [title setStringValue:
1678                  [NSString stringWithUTF8String: SDATA (head)]];
1679   else if (isQ == YES)
1680       [title setStringValue: @"Question"];
1681   else
1682       [title setStringValue: @"Information"];
1683
1684   {
1685     int i;
1686     NSRect r, s, t;
1687
1688     if (cols == 1 && rows > 1)  /* Never told where to split */
1689       {
1690         [matrix addColumn];
1691         for (i = 0; i<rows/2; i++)
1692           {
1693             [matrix putCell: [matrix cellAtRow: (rows+1)/2 column: 0]
1694                       atRow: i column: 1];
1695             [matrix removeRow: (rows+1)/2];
1696           }
1697       }
1698
1699     [matrix sizeToFit];
1700     {
1701       NSSize csize = [matrix cellSize];
1702       if (csize.width < MINCELLWIDTH)
1703         {
1704           csize.width = MINCELLWIDTH;
1705           [matrix setCellSize: csize];
1706           [matrix sizeToCells];
1707         }
1708     }
1709
1710     [title sizeToFit];
1711     [command sizeToFit];
1712
1713     t = [matrix frame];
1714     r = [title frame];
1715     if (r.size.width+r.origin.x > t.size.width+t.origin.x)
1716       {
1717         t.origin.x   = r.origin.x;
1718         t.size.width = r.size.width;
1719       }
1720     r = [command frame];
1721     if (r.size.width+r.origin.x > t.size.width+t.origin.x)
1722       {
1723         t.origin.x   = r.origin.x;
1724         t.size.width = r.size.width;
1725       }
1726
1727     r = [self frame];
1728     s = [(NSView *)[self contentView] frame];
1729     r.size.width  += t.origin.x+t.size.width +2*SPACER-s.size.width;
1730     r.size.height += t.origin.y+t.size.height+SPACER-s.size.height;
1731     [self setFrame: r display: NO];
1732   }
1733
1734   return self;
1735 }
1736
1737
1738 - (void)dealloc
1739 {
1740   { [super dealloc]; return; };
1741 }
1742
1743
1744 - (Lisp_Object)runDialogAt: (NSPoint)p
1745 {
1746   NSInteger ret;
1747
1748   /* initiate a session that will be ended by pop_down_menu */
1749   popupSession = [NSApp beginModalSessionForWindow: self];
1750   while (popup_activated_flag
1751          && (ret = [NSApp runModalSession: popupSession])
1752               == NSRunContinuesResponse)
1753     {
1754       /* Run this for timers.el, indep of atimers; might not return.
1755          TODO: use return value to avoid calling every iteration. */
1756       timer_check ();
1757       [NSThread sleepUntilDate: [NSDate dateWithTimeIntervalSinceNow: 0.1]];
1758     }
1759
1760   {                             /* FIXME: BIG UGLY HACK!!! */
1761       Lisp_Object tmp;
1762       *(EMACS_INT*)(&tmp) = ret;
1763       return tmp;
1764   }
1765 }
1766
1767 @end
1768
1769
1770 /* ==========================================================================
1771
1772     Lisp definitions
1773
1774    ========================================================================== */
1775
1776 DEFUN ("ns-reset-menu", Fns_reset_menu, Sns_reset_menu, 0, 0, 0,
1777        doc: /* Cause the NS menu to be re-calculated.  */)
1778      (void)
1779 {
1780   set_frame_menubar (SELECTED_FRAME (), 1, 0);
1781   return Qnil;
1782 }
1783
1784
1785 DEFUN ("x-popup-dialog", Fx_popup_dialog, Sx_popup_dialog, 2, 3, 0,
1786        doc: /* Pop up a dialog box and return user's selection.
1787 POSITION specifies which frame to use.
1788 This is normally a mouse button event or a window or frame.
1789 If POSITION is t, it means to use the frame the mouse is on.
1790 The dialog box appears in the middle of the specified frame.
1791
1792 CONTENTS specifies the alternatives to display in the dialog box.
1793 It is a list of the form (DIALOG ITEM1 ITEM2...).
1794 Each ITEM is a cons cell (STRING . VALUE).
1795 The return value is VALUE from the chosen item.
1796
1797 An ITEM may also be just a string--that makes a nonselectable item.
1798 An ITEM may also be nil--that means to put all preceding items
1799 on the left of the dialog box and all following items on the right.
1800 \(By default, approximately half appear on each side.)
1801
1802 If HEADER is non-nil, the frame title for the box is "Information",
1803 otherwise it is "Question".
1804
1805 If the user gets rid of the dialog box without making a valid choice,
1806 for instance using the window manager, then this produces a quit and
1807 `x-popup-dialog' does not return.  */)
1808      (Lisp_Object position, Lisp_Object contents, Lisp_Object header)
1809 {
1810   return ns_popup_dialog (position, contents, header);
1811 }
1812
1813 DEFUN ("menu-or-popup-active-p", Fmenu_or_popup_active_p, Smenu_or_popup_active_p, 0, 0, 0,
1814        doc: /* Return t if a menu or popup dialog is active.  */)
1815      (void)
1816 {
1817   return popup_activated () ? Qt : Qnil;
1818 }
1819
1820 /* ==========================================================================
1821
1822     Lisp interface declaration
1823
1824    ========================================================================== */
1825
1826 void
1827 syms_of_nsmenu (void)
1828 {
1829 #ifndef NS_IMPL_COCOA
1830   /* Don't know how to keep track of this in Next/Open/Gnustep.  Always
1831      update menus there.  */
1832   trackingMenu = 1;
1833 #endif
1834   defsubr (&Sx_popup_dialog);
1835   defsubr (&Sns_reset_menu);
1836   defsubr (&Smenu_or_popup_active_p);
1837
1838   Qdebug_on_next_call = intern_c_string ("debug-on-next-call");
1839   staticpro (&Qdebug_on_next_call);
1840 }