git.sesse.net Git - vlc/blob - modules/gui/macosx/controls.m

   1 /*****************************************************************************
   2  * controls.m: MacOS X interface plugin
   3  *****************************************************************************
   4  * Copyright (C) 2002-2003 VideoLAN
   5  * $Id: controls.m,v 1.32 2003/04/19 12:33:01 hartman Exp $
   6  *
   7  * Authors: Jon Lech Johansen <jon-vl@nanocrew.net>
   8  *          Christophe Massiot <massiot@via.ecp.fr>
   9  *          Derk-Jan Hartman <thedj@users.sourceforge.net>
  10  *
  11  * This program is free software; you can redistribute it and/or modify
  12  * it under the terms of the GNU General Public License as published by
  13  * the Free Software Foundation; either version 2 of the License, or
  14  * (at your option) any later version.
  15  *
  16  * This program is distributed in the hope that it will be useful,
  17  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  18  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  19  * GNU General Public License for more details.
  20  *
  21  * You should have received a copy of the GNU General Public License
  22  * along with this program; if not, write to the Free Software
  23  * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111, USA.
  24  *****************************************************************************/
  25
  26 /*****************************************************************************
  27  * Preamble
  28  *****************************************************************************/
  29 #include <stdlib.h>                                      /* malloc(), free() */
  30 #include <sys/param.h>                                    /* for MAXPATHLEN */
  31 #include <string.h>
  32
  33 #include "intf.h"
  34 #include "vout.h"
  35 #include "open.h"
  36 #include "controls.h"
  37
  38 /*****************************************************************************
  39  * VLCControls implementation
  40  *****************************************************************************/
  41 @implementation VLCControls
  42
  43 - (IBAction)play:(id)sender
  44 {
  45     intf_thread_t * p_intf = [NSApp getIntf];
  46
  47     playlist_t * p_playlist = vlc_object_find( p_intf, VLC_OBJECT_PLAYLIST,
  48                                                        FIND_ANYWHERE );
  49     if( p_playlist == NULL )
  50     {
  51         return;
  52     }
  53
  54     if( playlist_IsPlaying( p_playlist ) )
  55     {
  56         playlist_Pause( p_playlist );
  57         vlc_object_release( p_playlist );
  58     }
  59     else
  60     {
  61         if( !playlist_IsEmpty( p_playlist ) )
  62         {
  63             playlist_Play( p_playlist );
  64             vlc_object_release( p_playlist );
  65         }
  66         else
  67         {
  68             vlc_object_release( p_playlist );
  69             [o_open openFileGeneric: nil];
  70         }
  71     }
  72 }
  73
  74 - (IBAction)stop:(id)sender
  75 {
  76     intf_thread_t * p_intf = [NSApp getIntf];
  77
  78     playlist_t * p_playlist = vlc_object_find( p_intf, VLC_OBJECT_PLAYLIST,
  79                                                        FIND_ANYWHERE );
  80     if( p_playlist == NULL )
  81     {
  82         return;
  83     }
  84
  85     playlist_Stop( p_playlist );
  86     vlc_object_release( p_playlist );
  87 }
  88
  89 - (IBAction)faster:(id)sender
  90 {
  91     intf_thread_t * p_intf = [NSApp getIntf];
  92
  93     playlist_t * p_playlist = vlc_object_find( p_intf, VLC_OBJECT_PLAYLIST,
  94                                                        FIND_ANYWHERE );
  95     if( p_playlist == NULL )
  96     {
  97         return;
  98     }
  99
 100     vlc_mutex_lock( &p_playlist->object_lock );
 101     if( p_playlist->p_input != NULL )
 102     {
 103         input_SetStatus( p_playlist->p_input, INPUT_STATUS_FASTER );
 104     }
 105     vlc_mutex_unlock( &p_playlist->object_lock );
 106
 107     vlc_object_release( p_playlist );
 108 }
 109
 110 - (IBAction)slower:(id)sender
 111 {
 112     intf_thread_t * p_intf = [NSApp getIntf];
 113
 114     playlist_t * p_playlist = vlc_object_find( p_intf, VLC_OBJECT_PLAYLIST,
 115                                                        FIND_ANYWHERE );
 116     if( p_playlist == NULL )
 117     {
 118         return;
 119     }
 120
 121     vlc_mutex_lock( &p_playlist->object_lock );
 122     if( p_playlist->p_input != NULL )
 123     {
 124         input_SetStatus( p_playlist->p_input, INPUT_STATUS_SLOWER );
 125     }
 126     vlc_mutex_unlock( &p_playlist->object_lock );
 127
 128     vlc_object_release( p_playlist );
 129 }
 130
 131 - (IBAction)prev:(id)sender
 132 {
 133     intf_thread_t * p_intf = [NSApp getIntf];
 134
 135     playlist_t * p_playlist = vlc_object_find( p_intf, VLC_OBJECT_PLAYLIST,
 136                                                        FIND_ANYWHERE );
 137     if( p_playlist == NULL )
 138     {
 139         return;
 140     }
 141
 142     vlc_mutex_lock( &p_playlist->object_lock );
 143
 144     if( p_playlist->p_input == NULL )
 145     {
 146         vlc_mutex_unlock( &p_playlist->object_lock );
 147         vlc_object_release( p_playlist );
 148         return;
 149     }
 150
 151     vlc_mutex_lock( &p_playlist->p_input->stream.stream_lock );
 152
 153 #define p_area p_playlist->p_input->stream.p_selected_area
 154
 155     if( p_area->i_part_nb > 1 && p_area->i_part > 1 )
 156     {
 157         p_area->i_part--;
 158
 159         vlc_mutex_unlock( &p_playlist->p_input->stream.stream_lock );
 160         input_ChangeArea( p_playlist->p_input, p_area );
 161         vlc_mutex_unlock( &p_playlist->object_lock );
 162
 163         p_intf->p_sys->b_chapter_update = VLC_TRUE;
 164     }
 165     else
 166     {
 167         vlc_mutex_unlock( &p_playlist->p_input->stream.stream_lock );
 168         vlc_mutex_unlock( &p_playlist->object_lock );
 169         playlist_Prev( p_playlist );
 170     }
 171
 172 #undef p_area
 173
 174     vlc_object_release( p_playlist );
 175 }
 176
 177 - (IBAction)next:(id)sender
 178 {
 179     intf_thread_t * p_intf = [NSApp getIntf];
 180
 181     playlist_t * p_playlist = vlc_object_find( p_intf, VLC_OBJECT_PLAYLIST,
 182                                                        FIND_ANYWHERE );
 183     if( p_playlist == NULL )
 184     {
 185         return;
 186     }
 187
 188     vlc_mutex_lock( &p_playlist->object_lock );
 189
 190     if( p_playlist->p_input == NULL )
 191     {
 192         vlc_mutex_unlock( &p_playlist->object_lock );
 193         vlc_object_release( p_playlist );
 194         return;
 195     }
 196
 197     vlc_mutex_lock( &p_playlist->p_input->stream.stream_lock );
 198
 199 #define p_area p_playlist->p_input->stream.p_selected_area
 200
 201     if( p_area->i_part_nb > 1 && p_area->i_part + 1 < p_area->i_part_nb )
 202     {
 203         p_area->i_part++;
 204
 205         vlc_mutex_unlock( &p_playlist->p_input->stream.stream_lock );
 206         input_ChangeArea( p_playlist->p_input, p_area );
 207         vlc_mutex_unlock( &p_playlist->object_lock );
 208
 209         p_intf->p_sys->b_chapter_update = VLC_TRUE;
 210     }
 211     else
 212     {
 213         vlc_mutex_unlock( &p_playlist->p_input->stream.stream_lock );
 214         vlc_mutex_unlock( &p_playlist->object_lock );
 215         playlist_Next( p_playlist );
 216     }
 217
 218 #undef p_area
 219
 220     vlc_object_release( p_playlist );
 221 }
 222
 223 - (IBAction)loop:(id)sender
 224 {
 225     intf_thread_t * p_intf = [NSApp getIntf];
 226
 227     playlist_t * p_playlist = vlc_object_find( p_intf, VLC_OBJECT_PLAYLIST,
 228                                                        FIND_ANYWHERE );
 229     if( p_playlist == NULL )
 230     {
 231         return;
 232     }
 233
 234     config_PutInt( p_playlist, "loop",
 235                    !config_GetInt( p_playlist, "loop" ) );
 236
 237     vlc_object_release( p_playlist );
 238 }
 239
 240 - (IBAction)forward:(id)sender
 241 {
 242     intf_thread_t * p_intf = [NSApp getIntf];
 243     playlist_t * p_playlist = vlc_object_find( p_intf, VLC_OBJECT_PLAYLIST,
 244                                                        FIND_ANYWHERE );
 245     if( p_playlist == NULL || p_playlist->p_input == NULL )
 246     {
 247         if ( p_playlist != NULL ) vlc_object_release( p_playlist );
 248         return;
 249     }
 250
 251     input_Seek( p_playlist->p_input, 5, INPUT_SEEK_SECONDS | INPUT_SEEK_CUR );
 252     vlc_object_release( p_playlist );
 253 }
 254
 255 - (IBAction)backward:(id)sender
 256 {
 257     intf_thread_t * p_intf = [NSApp getIntf];
 258     playlist_t * p_playlist = vlc_object_find( p_intf, VLC_OBJECT_PLAYLIST,
 259                                                        FIND_ANYWHERE );
 260     if( p_playlist == NULL || p_playlist->p_input == NULL )
 261     {
 262         if ( p_playlist != NULL ) vlc_object_release( p_playlist );
 263         return;
 264     }
 265
 266     input_Seek( p_playlist->p_input, -5, INPUT_SEEK_SECONDS | INPUT_SEEK_CUR );
 267     vlc_object_release( p_playlist );
 268 }
 269
 270 - (IBAction)volumeUp:(id)sender
 271 {
 272     intf_thread_t * p_intf = [NSApp getIntf];
 273
 274     if( p_intf->p_sys->b_mute )
 275     {
 276         [self mute: nil];
 277     }
 278
 279     aout_VolumeUp( p_intf, 1, NULL );
 280
 281     [self updateVolumeSlider];
 282 }
 283
 284 - (IBAction)volumeDown:(id)sender
 285 {
 286     intf_thread_t * p_intf = [NSApp getIntf];
 287
 288     if( p_intf->p_sys->b_mute )
 289     {
 290         [self mute: nil];
 291     }
 292
 293     aout_VolumeDown( p_intf, 1, NULL );
 294
 295     [self updateVolumeSlider];
 296 }
 297
 298 - (IBAction)mute:(id)sender
 299 {
 300     intf_thread_t * p_intf = [NSApp getIntf];
 301     audio_volume_t i_volume;
 302
 303     aout_VolumeMute( p_intf, &i_volume );
 304     p_intf->p_sys->b_mute = ( i_volume == 0 );
 305
 306     [self updateVolumeSlider];
 307 }
 308
 309 - (IBAction)volumeSliderUpdated:(id)sender
 310 {
 311     intf_thread_t * p_intf = [NSApp getIntf];
 312     audio_volume_t i_volume = (audio_volume_t)[sender intValue];
 313
 314     aout_VolumeSet( p_intf, i_volume * AOUT_VOLUME_STEP );
 315 }
 316
 317 - (void)updateVolumeSlider
 318 {
 319     intf_thread_t * p_intf = [NSApp getIntf];
 320     audio_volume_t i_volume;
 321
 322     aout_VolumeGet( p_intf, &i_volume );
 323
 324     [o_volumeslider setFloatValue: (float)(i_volume / AOUT_VOLUME_STEP)];
 325 }
 326
 327 - (IBAction)halfWindow:(id)sender
 328 {
 329     id o_window = [NSApp keyWindow];
 330     NSArray *o_windows = [NSApp windows];
 331     NSEnumerator *o_enumerator = [o_windows objectEnumerator];
 332
 333     while ((o_window = [o_enumerator nextObject]))
 334     {
 335         if( [[o_window className] isEqualToString: @"VLCWindow"] )
 336         {
 337             [o_window scaleWindowWithFactor: 0.5];
 338         }
 339     }
 340 }
 341
 342 - (IBAction)normalWindow:(id)sender
 343 {
 344     id o_window = [NSApp keyWindow];
 345     NSArray *o_windows = [NSApp windows];
 346     NSEnumerator *o_enumerator = [o_windows objectEnumerator];
 347
 348     while ((o_window = [o_enumerator nextObject]))
 349     {
 350         if( [[o_window className] isEqualToString: @"VLCWindow"] )
 351         {
 352             [o_window scaleWindowWithFactor: 1];
 353         }
 354     }
 355 }
 356
 357 - (IBAction)doubleWindow:(id)sender
 358 {
 359     id o_window = [NSApp keyWindow];
 360     NSArray *o_windows = [NSApp windows];
 361     NSEnumerator *o_enumerator = [o_windows objectEnumerator];
 362
 363     while ((o_window = [o_enumerator nextObject]))
 364     {
 365         if( [[o_window className] isEqualToString: @"VLCWindow"] )
 366         {
 367             [o_window scaleWindowWithFactor: 2];
 368         }
 369     }
 370 }
 371
 372
 373 - (IBAction)fullscreen:(id)sender
 374 {
 375     id o_window = [NSApp keyWindow];
 376     NSArray *o_windows = [NSApp windows];
 377     NSEnumerator *o_enumerator = [o_windows objectEnumerator];
 378
 379     while ((o_window = [o_enumerator nextObject]))
 380     {
 381         if( [[o_window className] isEqualToString: @"VLCWindow"] )
 382         {
 383             [o_window toggleFullscreen];
 384         }
 385     }
 386 }
 387
 388 - (IBAction)deinterlace:(id)sender
 389 {
 390     intf_thread_t * p_intf = [NSApp getIntf];
 391     BOOL bEnable = [sender state] == NSOffState;
 392
 393     if( bEnable && ![[sender title] isEqualToString: @"none"] )
 394     {
 395         config_PutPsz( p_intf, "filter", "deinterlace" );
 396         config_PutPsz( p_intf, "deinterlace-mode",
 397                     [[sender title] lossyCString] );
 398     }
 399     else
 400     {
 401         config_PutPsz( p_intf, "filter", NULL );
 402     }
 403 }
 404
 405 - (IBAction)toggleProgram:(id)sender
 406 {
 407     NSMenuItem * o_mi = (NSMenuItem *)sender;
 408     intf_thread_t * p_intf = [NSApp getIntf];
 409
 410     playlist_t * p_playlist = vlc_object_find( p_intf, VLC_OBJECT_PLAYLIST,
 411                                                        FIND_ANYWHERE );
 412     if( p_playlist == NULL )
 413     {
 414         return;
 415     }
 416
 417     vlc_mutex_lock( &p_playlist->object_lock );
 418
 419     if( p_playlist->p_input == NULL )
 420     {
 421         vlc_mutex_unlock( &p_playlist->object_lock );
 422         vlc_object_release( p_playlist );
 423         return;
 424     }
 425
 426     if( [o_mi state] == NSOffState )
 427     {
 428         u16 i_program_id = [o_mi tag];
 429
 430         input_ChangeProgram( p_playlist->p_input, i_program_id );
 431         input_SetStatus( p_playlist->p_input, INPUT_STATUS_PLAY );
 432     }
 433
 434     vlc_mutex_unlock( &p_playlist->object_lock );
 435     vlc_object_release( p_playlist );
 436 }
 437
 438 - (IBAction)toggleTitle:(id)sender
 439 {
 440     NSMenuItem * o_mi = (NSMenuItem *)sender;
 441     intf_thread_t * p_intf = [NSApp getIntf];
 442
 443     playlist_t * p_playlist = vlc_object_find( p_intf, VLC_OBJECT_PLAYLIST,
 444                                                        FIND_ANYWHERE );
 445     if( p_playlist == NULL )
 446     {
 447         return;
 448     }
 449
 450     vlc_mutex_lock( &p_playlist->object_lock );
 451
 452     if( p_playlist->p_input == NULL )
 453     {
 454         vlc_mutex_unlock( &p_playlist->object_lock );
 455         vlc_object_release( p_playlist );
 456         return;
 457     }
 458
 459     if( [o_mi state] == NSOffState )
 460     {
 461         int i_title = [o_mi tag];
 462
 463 #define p_input p_playlist->p_input
 464         input_ChangeArea( p_input, p_input->stream.pp_areas[i_title] );
 465         input_SetStatus( p_input, INPUT_STATUS_PLAY );
 466 #undef p_input
 467     }
 468
 469     vlc_mutex_unlock( &p_playlist->object_lock );
 470     vlc_object_release( p_playlist );
 471 }
 472
 473 - (IBAction)toggleChapter:(id)sender
 474 {
 475     NSMenuItem * o_mi = (NSMenuItem *)sender;
 476     intf_thread_t * p_intf = [NSApp getIntf];
 477
 478     playlist_t * p_playlist = vlc_object_find( p_intf, VLC_OBJECT_PLAYLIST,
 479                                                        FIND_ANYWHERE );
 480     if( p_playlist == NULL )
 481     {
 482         return;
 483     }
 484
 485     vlc_mutex_lock( &p_playlist->object_lock );
 486
 487     if( p_playlist->p_input == NULL )
 488     {
 489         vlc_mutex_unlock( &p_playlist->object_lock );
 490         vlc_object_release( p_playlist );
 491         return;
 492     }
 493
 494     if( [o_mi state] == NSOffState )
 495     {
 496         int i_chapter = [o_mi tag];
 497
 498 #define p_input p_playlist->p_input
 499         p_input->stream.p_selected_area->i_part = i_chapter;
 500         input_ChangeArea( p_input, p_input->stream.p_selected_area );
 501         input_SetStatus( p_input, INPUT_STATUS_PLAY );
 502 #undef p_input
 503     }
 504
 505     vlc_mutex_unlock( &p_playlist->object_lock );
 506     vlc_object_release( p_playlist );
 507 }
 508
 509 - (IBAction)toggleLanguage:(id)sender
 510 {
 511     NSMenuItem * o_mi = (NSMenuItem *)sender;
 512     intf_thread_t * p_intf = [NSApp getIntf];
 513
 514     playlist_t * p_playlist = vlc_object_find( p_intf, VLC_OBJECT_PLAYLIST,
 515                                                        FIND_ANYWHERE );
 516     if( p_playlist == NULL )
 517     {
 518         return;
 519     }
 520
 521     vlc_mutex_lock( &p_playlist->object_lock );
 522
 523     if( p_playlist->p_input == NULL )
 524     {
 525         vlc_mutex_unlock( &p_playlist->object_lock );
 526         vlc_object_release( p_playlist );
 527         return;
 528     }
 529
 530 #if 0
 531     /* We do not use this code, because you need to start stop .avi for
 532      * it to work, so not very useful now  --hartman */
 533     if ( [o_mi state] == NSOffState && [o_mi tag] == 2000 )
 534     {
 535         NSOpenPanel *o_open_panel = [NSOpenPanel openPanel];
 536
 537         [o_open_panel setAllowsMultipleSelection: NO];
 538         [o_open_panel setTitle: _NS("Open subtitle file")];
 539         [o_open_panel setPrompt: _NS("Open")];
 540
 541         if( [o_open_panel runModalForDirectory: nil
 542                 file: nil types: nil] == NSOKButton )
 543         {
 544             NSString *o_filename = [[o_open_panel filenames] objectAtIndex: 0];
 545             config_PutPsz( p_intf, "sub-file", strdup( [o_filename cString] ));
 546         }
 547     }
 548 #endif
 549
 550 #define p_input p_playlist->p_input
 551
 552     if( !p_intf->p_sys->b_audio_update )
 553     {
 554         NSValue * o_value = [o_mi representedObject];
 555         es_descriptor_t * p_es = [o_value pointerValue];
 556
 557         if( [o_mi state] == NSOnState )
 558         {
 559             /* we just have one ES to disable */
 560             input_ToggleES( p_input, p_es, 0 );
 561         }
 562         else
 563         {
 564             unsigned int i;
 565             int i_cat = [o_mi tag];
 566
 567             vlc_mutex_lock( &p_input->stream.stream_lock );
 568
 569 #define ES p_input->stream.pp_selected_es[i]
 570
 571             /* unselect the selected ES in the same class */
 572             for( i = 0; i < p_input->stream.i_selected_es_number; i++ )
 573             {
 574                 if( ES->i_cat == i_cat )
 575                 {
 576                     vlc_mutex_unlock( &p_input->stream.stream_lock );
 577                     input_ToggleES( p_input, ES, 0 );
 578                     vlc_mutex_lock( &p_input->stream.stream_lock );
 579                     break;
 580                 }
 581             }
 582
 583 #undef ES
 584
 585             vlc_mutex_unlock( &p_input->stream.stream_lock );
 586
 587             input_ToggleES( p_input, p_es, 1 );
 588         }
 589     }
 590
 591 #undef p_input
 592
 593     vlc_mutex_unlock( &p_playlist->object_lock );
 594     vlc_object_release( p_playlist );
 595 }
 596
 597 - (IBAction)toggleVar:(id)sender
 598 {
 599     NSMenuItem * o_mi = (NSMenuItem *)sender;
 600
 601     if( [o_mi state] == NSOffState )
 602     {
 603         const char * psz_variable = (const char *)[o_mi tag];
 604         char * psz_value = [NSApp delocalizeString: [o_mi title]];
 605         vlc_object_t * p_object = (vlc_object_t *)
 606             [[o_mi representedObject] pointerValue];
 607         vlc_value_t val;
 608         /* psz_string sucks */
 609         val.psz_string = (char *)psz_value;
 610
 611         if ( var_Set( p_object, psz_variable, val ) < 0 )
 612         {
 613             msg_Warn( p_object, "cannot set variable (%s)", psz_value );
 614         }
 615
 616         free( psz_value );
 617     }
 618 }
 619
 620 @end
 621
 622 @implementation VLCControls (NSMenuValidation)
 623
 624 - (BOOL)validateMenuItem:(NSMenuItem *)o_mi
 625 {
 626     BOOL bEnabled = TRUE;
 627     NSMenu * o_menu = [o_mi menu];
 628     intf_thread_t * p_intf = [NSApp getIntf];
 629
 630     playlist_t * p_playlist = vlc_object_find( p_intf, VLC_OBJECT_PLAYLIST,
 631                                                        FIND_ANYWHERE );
 632
 633     if( p_playlist != NULL )
 634     {
 635         vlc_mutex_lock( &p_playlist->object_lock );
 636     }
 637
 638 #define p_input p_playlist->p_input
 639
 640     if( [[o_mi title] isEqualToString: _NS("Faster")] ||
 641         [[o_mi title] isEqualToString: _NS("Slower")] )
 642     {
 643         if( p_playlist != NULL && p_input != NULL )
 644         {
 645             vlc_mutex_lock( &p_input->stream.stream_lock );
 646             bEnabled = p_input->stream.b_pace_control;
 647             vlc_mutex_unlock( &p_input->stream.stream_lock );
 648         }
 649         else
 650         {
 651             bEnabled = FALSE;
 652         }
 653     }
 654     else if( [[o_mi title] isEqualToString: _NS("Stop")] )
 655     {
 656         if( p_playlist == NULL || p_input == NULL )
 657         {
 658             bEnabled = FALSE;
 659         }
 660     }
 661     else if( [[o_mi title] isEqualToString: _NS("Previous")] ||
 662              [[o_mi title] isEqualToString: _NS("Next")] )
 663     {
 664         if( p_playlist == NULL )
 665         {
 666             bEnabled = FALSE;
 667         }
 668         else
 669         {
 670             bEnabled = p_playlist->i_size > 1;
 671
 672             if( p_input != NULL )
 673             {
 674                 vlc_mutex_lock( &p_input->stream.stream_lock );
 675                 bEnabled |= p_input->stream.p_selected_area->i_part_nb > 1;
 676                 vlc_mutex_unlock( &p_input->stream.stream_lock );
 677             }
 678         }
 679     }
 680     else if( [[o_mi title] isEqualToString: _NS("Loop")] )
 681     {
 682         int i_state = config_GetInt( p_playlist, "loop" ) ?
 683                       NSOnState : NSOffState;
 684
 685         [o_mi setState: i_state];
 686     }
 687     else if( [[o_mi title] isEqualToString: _NS("Step Forward")] ||
 688              [[o_mi title] isEqualToString: _NS("Step Backward")] )
 689     {
 690         if( p_playlist != NULL && p_input != NULL )
 691         {
 692             vlc_mutex_lock( &p_input->stream.stream_lock );
 693             bEnabled = p_input->stream.b_seekable;
 694             vlc_mutex_unlock( &p_input->stream.stream_lock );
 695         }
 696         else
 697         {
 698             bEnabled = FALSE;
 699         }
 700     }
 701     else if( [[o_mi title] isEqualToString: _NS("Mute")] )
 702     {
 703         [o_mi setState: p_intf->p_sys->b_mute ? NSOnState : NSOffState];
 704     }
 705     else if( [[o_mi title] isEqualToString: _NS("Fullscreen")] ||
 706                 [[o_mi title] isEqualToString: _NS("Half Size")] ||
 707                 [[o_mi title] isEqualToString: _NS("Normal Size")] ||
 708                 [[o_mi title] isEqualToString: _NS("Double Size")])
 709     {
 710         id o_window;
 711         NSArray *o_windows = [NSApp windows];
 712         NSEnumerator *o_enumerator = [o_windows objectEnumerator];
 713         bEnabled = FALSE;
 714
 715         while ((o_window = [o_enumerator nextObject]))
 716         {
 717             if( [[o_window className] isEqualToString: @"VLCWindow"] )
 718             {
 719                 bEnabled = TRUE;
 720                 break;
 721             }
 722         }
 723     }
 724     else if( o_menu != nil &&
 725              [[o_menu title] isEqualToString: _NS("Deinterlace")] )
 726     {
 727         char * psz_filter = config_GetPsz( p_intf, "filter" );
 728
 729         if( psz_filter != NULL )
 730         {
 731             free( psz_filter );
 732
 733             psz_filter = config_GetPsz( p_intf, "deinterlace-mode" );
 734         }
 735
 736         if( psz_filter != NULL )
 737         {
 738             if( strcmp( psz_filter, [[o_mi title] lossyCString] ) == 0 )
 739             {
 740                 [o_mi setState: NSOnState];
 741             }
 742             else
 743             {
 744                 [o_mi setState: NSOffState];
 745             }
 746
 747             free( psz_filter );
 748         }
 749         else
 750         {
 751             [o_mi setState: NSOffState];
 752         }
 753     }
 754
 755     if( p_playlist != NULL )
 756     {
 757         vlc_mutex_unlock( &p_playlist->object_lock );
 758         vlc_object_release( p_playlist );
 759     }
 760
 761     return( bEnabled );
 762 }
 763
 764 @end