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 1.40 2003/06/01 23:48:17 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_input_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_input_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)windowAction:(id)sender
 328 {
 329     id o_window = [NSApp keyWindow];
 330     NSString *o_title = [sender title];
 331     NSArray *o_windows = [NSApp windows];
 332     NSEnumerator *o_enumerator = [o_windows objectEnumerator];
 333     vout_thread_t   *p_vout = vlc_object_find( [NSApp getIntf], VLC_OBJECT_VOUT,
 334                                               FIND_ANYWHERE );
 335
 336     if( p_vout != NULL )
 337     {
 338         while ((o_window = [o_enumerator nextObject]))
 339         {
 340             if( [[o_window className] isEqualToString: @"VLCWindow"] )
 341             {
 342                 if( [o_title isEqualToString: _NS("Fullscreen") ] )
 343                     [o_window toggleFullscreen];
 344                 else if( [o_title isEqualToString: _NS("Half Size") ] )
 345                     [o_window scaleWindowWithFactor: 0.5];
 346                 else if( [o_title isEqualToString: _NS("Normal Size") ] )
 347                     [o_window scaleWindowWithFactor: 1.0];
 348                 else if( [o_title isEqualToString: _NS("Double Size") ] )
 349                     [o_window scaleWindowWithFactor: 2.0];
 350                 else if( [o_title isEqualToString: _NS("Float On Top") ] )
 351                     [o_window toggleFloatOnTop];
 352                 else if( [o_title isEqualToString: _NS("Fit To Screen") ] )
 353                 {
 354                     if( ![o_window isZoomed] )
 355                         [o_window performZoom:self];
 356                 }
 357             }
 358         }
 359         vlc_object_release( (vlc_object_t *)p_vout );
 360     }
 361 }
 362
 363 - (void)setupVarMenuItem:(NSMenuItem *)o_mi
 364                     target:(vlc_object_t *)p_object
 365                     var:(const char *)psz_variable
 366                     selector:(SEL)pf_callback
 367 {
 368     vlc_value_t val, text;
 369     int i_type = var_Type( p_object, psz_variable );
 370
 371     switch( i_type & VLC_VAR_TYPE )
 372     {
 373     case VLC_VAR_VOID:
 374     case VLC_VAR_BOOL:
 375     case VLC_VAR_VARIABLE:
 376     case VLC_VAR_STRING:
 377     case VLC_VAR_INTEGER:
 378         break;
 379     default:
 380         /* Variable doesn't exist or isn't handled */
 381         return;
 382     }
 383
 384     /* Make sure we want to display the variable */
 385     if( i_type & VLC_VAR_HASCHOICE )
 386     {
 387         var_Change( p_object, psz_variable, VLC_VAR_CHOICESCOUNT, &val, NULL );
 388         if( val.i_int == 0 ) return;
 389         if( (i_type & VLC_VAR_TYPE) != VLC_VAR_VARIABLE && val.i_int == 1 )
 390             return;
 391     }
 392
 393     /* Get the descriptive name of the variable */
 394     var_Change( p_object, psz_variable, VLC_VAR_GETTEXT, &text, NULL );
 395     [o_mi setTitle: [NSApp localizedString: text.psz_string ?
 396                                         text.psz_string : strdup( psz_variable ) ]];
 397
 398     var_Get( p_object, psz_variable, &val );
 399     if( i_type & VLC_VAR_HASCHOICE )
 400     {
 401         NSMenu *o_menu = [o_mi submenu];
 402
 403         [self setupVarMenu: o_menu forMenuItem: o_mi target:p_object
 404                         var:psz_variable selector:pf_callback];
 405
 406         if( text.psz_string ) free( text.psz_string );
 407         return;
 408     }
 409
 410     VLCMenuExt *o_data;
 411     switch( i_type & VLC_VAR_TYPE )
 412     {
 413     case VLC_VAR_VOID:
 414         o_data = [[VLCMenuExt alloc] initWithVar: psz_variable Object: p_object->i_object_id
 415                 Value: val ofType: i_type];
 416         [o_mi setRepresentedObject: [NSValue valueWithPointer:[o_data retain]]];
 417         break;
 418
 419     case VLC_VAR_BOOL:
 420         o_data = [[VLCMenuExt alloc] initWithVar: psz_variable Object: p_object->i_object_id
 421                 Value: val ofType: i_type];
 422         [o_mi setRepresentedObject: [NSValue valueWithPointer:[o_data retain]]];
 423         [o_mi setState: val.b_bool ? TRUE : FALSE ];
 424         break;
 425
 426     default:
 427         if( text.psz_string ) free( text.psz_string );
 428         return;
 429     }
 430
 431     if( (i_type & VLC_VAR_TYPE) == VLC_VAR_STRING ) free( val.psz_string );
 432     if( text.psz_string ) free( text.psz_string );
 433 }
 434
 435
 436 - (void)setupVarMenu:(NSMenu *)o_menu
 437                     forMenuItem: (NSMenuItem *)o_parent
 438                     target:(vlc_object_t *)p_object
 439                     var:(const char *)psz_variable
 440                     selector:(SEL)pf_callback
 441 {
 442     vlc_value_t val, val_list, text_list;
 443     int i_type, i, i_nb_items;
 444
 445     /* remove previous items */
 446     i_nb_items = [o_menu numberOfItems];
 447     for( i = 0; i < i_nb_items; i++ )
 448     {
 449         [o_menu removeItemAtIndex: 0];
 450     }
 451
 452     /* Check the type of the object variable */
 453     i_type = var_Type( p_object, psz_variable );
 454
 455     /* Make sure we want to display the variable */
 456     if( i_type & VLC_VAR_HASCHOICE )
 457     {
 458         var_Change( p_object, psz_variable, VLC_VAR_CHOICESCOUNT, &val, NULL );
 459         if( val.i_int == 0 ) return;
 460         if( (i_type & VLC_VAR_TYPE) != VLC_VAR_VARIABLE && val.i_int == 1 )
 461             return;
 462     }
 463     else
 464     {
 465         return;
 466     }
 467
 468     switch( i_type & VLC_VAR_TYPE )
 469     {
 470     case VLC_VAR_VOID:
 471     case VLC_VAR_BOOL:
 472     case VLC_VAR_VARIABLE:
 473     case VLC_VAR_STRING:
 474     case VLC_VAR_INTEGER:
 475         break;
 476     default:
 477         /* Variable doesn't exist or isn't handled */
 478         return;
 479     }
 480
 481     if( var_Get( p_object, psz_variable, &val ) < 0 )
 482     {
 483         return;
 484     }
 485
 486     if( var_Change( p_object, psz_variable, VLC_VAR_GETLIST,
 487                     &val_list, &text_list ) < 0 )
 488     {
 489         if( (i_type & VLC_VAR_TYPE) == VLC_VAR_STRING ) free( val.psz_string );
 490         return;
 491     }
 492
 493     /* make (un)sensitive */
 494     [o_parent setEnabled: ( val_list.p_list->i_count > 1 )];
 495
 496     for( i = 0; i < val_list.p_list->i_count; i++ )
 497     {
 498         vlc_value_t another_val;
 499         NSMenuItem * o_lmi;
 500         NSString *o_title = @"";
 501         VLCMenuExt *o_data;
 502
 503         switch( i_type & VLC_VAR_TYPE )
 504         {
 505         case VLC_VAR_VARIABLE:
 506
 507             /* This is causing crashes for the moment.
 508             o_title = [NSApp localizedString: text_list.p_list->p_values[i].psz_string ?
 509                 text_list.p_list->p_values[i].psz_string : val_list.p_list->p_values[i].psz_string ];
 510
 511             o_data = [[VLCMenuExt alloc] initWithVar: strdup(psz_variable) Object: p_object->i_object_id
 512                 Value: val ofType: i_type];
 513             [o_lmi setRepresentedObject: [NSValue valueWithPointer:[o_data retain]]];
 514
 515             // Create a submenu
 516             NSMenu *o_menu = [o_lmi submenu];
 517
 518             [self setupVarMenu: o_menu forMenuItem: o_lmi target:p_object
 519                             var:psz_variable selector:pf_callback];
 520 */
 521             return;
 522
 523         case VLC_VAR_STRING:
 524             another_val.psz_string =
 525                 strdup(val_list.p_list->p_values[i].psz_string);
 526
 527             o_title = [NSApp localizedString: text_list.p_list->p_values[i].psz_string ?
 528                 text_list.p_list->p_values[i].psz_string : val_list.p_list->p_values[i].psz_string ];
 529
 530             o_lmi = [o_menu addItemWithTitle: o_title action: pf_callback keyEquivalent: @""];
 531             o_data = [[VLCMenuExt alloc] initWithVar: strdup(psz_variable) Object: p_object->i_object_id
 532                     Value: another_val ofType: i_type];
 533             [o_lmi setRepresentedObject: [NSValue valueWithPointer:[o_data retain]]];
 534             [o_lmi setTarget: self];
 535
 536             if( !strcmp( val.psz_string, val_list.p_list->p_values[i].psz_string ) )
 537                 [o_lmi setState: TRUE ];
 538
 539             break;
 540
 541         case VLC_VAR_INTEGER:
 542
 543              o_title = text_list.p_list->p_values[i].psz_string ?
 544                                  [NSApp localizedString: strdup( text_list.p_list->p_values[i].psz_string )] :
 545                                  [NSString stringWithFormat: @"%d",
 546                                  val_list.p_list->p_values[i].i_int];
 547
 548             o_lmi = [[o_menu addItemWithTitle: o_title action: pf_callback keyEquivalent: @""] retain ];
 549             o_data = [[VLCMenuExt alloc] initWithVar: strdup(psz_variable) Object: p_object->i_object_id
 550                     Value: val_list.p_list->p_values[i] ofType: i_type];
 551             [o_lmi setRepresentedObject: [NSValue valueWithPointer:[ o_data retain]]];
 552             [o_lmi setTarget: self];
 553
 554             if( val_list.p_list->p_values[i].i_int == val.i_int )
 555                 [o_lmi setState: TRUE ];
 556             break;
 557
 558         default:
 559           break;
 560         }
 561     }
 562
 563     /* clean up everything */
 564     if( (i_type & VLC_VAR_TYPE) == VLC_VAR_STRING ) free( val.psz_string );
 565     var_Change( p_object, psz_variable, VLC_VAR_FREELIST, &val_list, &text_list );
 566 }
 567
 568 - (IBAction)toggleVar:(id)sender
 569 {
 570     NSMenuItem *o_mi = (NSMenuItem *)sender;
 571     VLCMenuExt *o_data = [[o_mi representedObject] pointerValue];
 572     vlc_object_t *p_object;
 573
 574     p_object = (vlc_object_t *)vlc_object_get( [NSApp getIntf],
 575                                     [o_data objectID] );
 576     if( p_object == NULL ) return;
 577
 578     var_Set( p_object, strdup([o_data name]), [o_data value] );
 579     vlc_object_release( p_object );
 580
 581     return;
 582 }
 583
 584 @end
 585
 586 @implementation VLCControls (NSMenuValidation)
 587
 588 - (BOOL)validateMenuItem:(NSMenuItem *)o_mi
 589 {
 590     BOOL bEnabled = TRUE;
 591     intf_thread_t * p_intf = [NSApp getIntf];
 592
 593     playlist_t * p_playlist = vlc_object_find( p_intf, VLC_OBJECT_PLAYLIST,
 594                                                        FIND_ANYWHERE );
 595
 596     if( p_playlist != NULL )
 597     {
 598         vlc_mutex_lock( &p_playlist->object_lock );
 599     }
 600
 601 #define p_input p_playlist->p_input
 602
 603     if( [[o_mi title] isEqualToString: _NS("Faster")] ||
 604         [[o_mi title] isEqualToString: _NS("Slower")] )
 605     {
 606         if( p_playlist != NULL && p_input != NULL )
 607         {
 608             vlc_mutex_lock( &p_input->stream.stream_lock );
 609             bEnabled = p_input->stream.b_pace_control;
 610             vlc_mutex_unlock( &p_input->stream.stream_lock );
 611         }
 612         else
 613         {
 614             bEnabled = FALSE;
 615         }
 616     }
 617     else if( [[o_mi title] isEqualToString: _NS("Stop")] )
 618     {
 619         if( p_playlist == NULL || p_input == NULL )
 620         {
 621             bEnabled = FALSE;
 622         }
 623     }
 624     else if( [[o_mi title] isEqualToString: _NS("Previous")] ||
 625              [[o_mi title] isEqualToString: _NS("Next")] )
 626     {
 627         if( p_playlist == NULL )
 628         {
 629             bEnabled = FALSE;
 630         }
 631         else
 632         {
 633             bEnabled = p_playlist->i_size > 1;
 634
 635             if( p_input != NULL )
 636             {
 637                 vlc_mutex_lock( &p_input->stream.stream_lock );
 638                 bEnabled |= p_input->stream.p_selected_area->i_part_nb > 1;
 639                 vlc_mutex_unlock( &p_input->stream.stream_lock );
 640             }
 641         }
 642     }
 643     else if( [[o_mi title] isEqualToString: _NS("Loop")] )
 644     {
 645         int i_state = config_GetInt( p_playlist, "loop" ) ?
 646                       NSOnState : NSOffState;
 647
 648         [o_mi setState: i_state];
 649     }
 650     else if( [[o_mi title] isEqualToString: _NS("Step Forward")] ||
 651              [[o_mi title] isEqualToString: _NS("Step Backward")] )
 652     {
 653         if( p_playlist != NULL && p_input != NULL )
 654         {
 655             vlc_mutex_lock( &p_input->stream.stream_lock );
 656             bEnabled = p_input->stream.b_seekable;
 657             vlc_mutex_unlock( &p_input->stream.stream_lock );
 658         }
 659         else
 660         {
 661             bEnabled = FALSE;
 662         }
 663     }
 664     else if( [[o_mi title] isEqualToString: _NS("Mute")] )
 665     {
 666         [o_mi setState: p_intf->p_sys->b_mute ? NSOnState : NSOffState];
 667     }
 668     else if( [[o_mi title] isEqualToString: _NS("Fullscreen")] ||
 669                 [[o_mi title] isEqualToString: _NS("Half Size")] ||
 670                 [[o_mi title] isEqualToString: _NS("Normal Size")] ||
 671                 [[o_mi title] isEqualToString: _NS("Double Size")] ||
 672                 [[o_mi title] isEqualToString: _NS("Fit To Screen")] ||
 673                 [[o_mi title] isEqualToString: _NS("Float On Top")] )
 674     {
 675         id o_window;
 676         NSArray *o_windows = [NSApp windows];
 677         NSEnumerator *o_enumerator = [o_windows objectEnumerator];
 678         bEnabled = FALSE;
 679
 680         if ( [[o_mi title] isEqualToString: _NS("Float On Top")] )
 681         {
 682             int i_state = config_GetInt( p_playlist, "macosx-float" ) ?
 683                       NSOnState : NSOffState;
 684             [o_mi setState: i_state];
 685         }
 686
 687         vout_thread_t   *p_vout = vlc_object_find( p_intf, VLC_OBJECT_VOUT,
 688                                               FIND_ANYWHERE );
 689         if( p_vout != NULL )
 690         {
 691             while ((o_window = [o_enumerator nextObject]))
 692             {
 693                 if( [[o_window className] isEqualToString: @"VLCWindow"] )
 694                 {
 695                     bEnabled = TRUE;
 696                     break;
 697                 }
 698             }
 699             vlc_object_release( (vlc_object_t *)p_vout );
 700         }
 701     }
 702
 703     if( p_playlist != NULL )
 704     {
 705         vlc_mutex_unlock( &p_playlist->object_lock );
 706         vlc_object_release( p_playlist );
 707     }
 708
 709     return( bEnabled );
 710 }
 711
 712 @end
 713
 714 /*****************************************************************************
 715  * VLCMenuExt implementation
 716  *****************************************************************************
 717  * Object connected to a playlistitem which remembers the data belonging to
 718  * the variable of the autogenerated menu
 719  *****************************************************************************/
 720 @implementation VLCMenuExt
 721
 722 - (id)initWithVar: (const char *)_psz_name Object: (int)i_id
 723         Value: (vlc_value_t)val ofType: (int)_i_type
 724 {
 725     self = [super init];
 726
 727     if( self != nil )
 728     {
 729         psz_name = strdup( _psz_name );
 730         i_object_id = i_id;
 731         value = val;
 732         i_type = _i_type;
 733     }
 734
 735     return( self );
 736 }
 737
 738 - (void)dealloc
 739 {
 740     free( psz_name );
 741 }
 742
 743 - (char *)name
 744 {
 745     return psz_name;
 746 }
 747
 748 - (int)objectID
 749 {
 750     return i_object_id;
 751 }
 752
 753 - (vlc_value_t)value
 754 {
 755     return value;
 756 }
 757
 758 - (int)type
 759 {
 760     return i_type;
 761 }
 762
 763 @end