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 1.54 2003/11/15 22:42:16 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 #include <osd.h>
  38
  39 /*****************************************************************************
  40  * VLCControls implementation
  41  *****************************************************************************/
  42 @implementation VLCControls
  43
  44 - (IBAction)play:(id)sender
  45 {
  46     vlc_value_t val;
  47     playlist_t * p_playlist;
  48     intf_thread_t * p_intf = [NSApp getIntf];
  49     input_thread_t * p_input = vlc_object_find( p_intf, VLC_OBJECT_INPUT,
  50                                                        FIND_ANYWHERE );
  51
  52     val.i_int = PLAYING_S;
  53     if( p_input )
  54     {
  55         var_Get( p_input, "state", &val );
  56     }
  57     if( p_input && val.i_int != PAUSE_S )
  58     {
  59         vout_OSDMessage( VLC_OBJECT(p_intf), _( "Pause" ) );
  60         val.i_int = PAUSE_S;
  61         var_Set( p_input, "state", val );
  62     }
  63     else
  64     {
  65         p_playlist = vlc_object_find( p_intf, VLC_OBJECT_PLAYLIST,
  66                                         FIND_ANYWHERE );
  67         if( p_playlist )
  68         {
  69             vlc_mutex_lock( &p_playlist->object_lock );
  70             if( p_playlist->i_size )
  71             {
  72                 vlc_mutex_unlock( &p_playlist->object_lock );
  73                 vout_OSDMessage( VLC_OBJECT(p_intf), _( "Play" ) );
  74                 playlist_Play( p_playlist );
  75                 vlc_object_release( p_playlist );
  76             }
  77             else
  78             {
  79                 vlc_mutex_unlock( &p_playlist->object_lock );
  80                 vlc_object_release( p_playlist );
  81                 [o_open openFileGeneric: nil];
  82             }
  83         }
  84     }
  85     if( p_input ) vlc_object_release( p_input );
  86 }
  87
  88 - (IBAction)stop:(id)sender
  89 {
  90     intf_thread_t * p_intf = [NSApp getIntf];
  91     playlist_t * p_playlist = vlc_object_find( p_intf, VLC_OBJECT_PLAYLIST,
  92                                                        FIND_ANYWHERE );
  93     if( p_playlist != NULL )
  94     {
  95         vout_OSDMessage( (vlc_object_t *)p_intf, _( "Stop" ) );
  96         playlist_Stop( p_playlist );
  97         vlc_object_release( p_playlist );
  98     }
  99 }
 100
 101 - (IBAction)faster:(id)sender
 102 {
 103     intf_thread_t * p_intf = [NSApp getIntf];
 104     input_thread_t * p_input = vlc_object_find( p_intf, VLC_OBJECT_INPUT,
 105                                                        FIND_ANYWHERE );
 106     if( p_input != NULL )
 107     {
 108         vlc_value_t val; val.b_bool = VLC_TRUE;
 109
 110         var_Set( p_input, "rate-faster", val );
 111         vout_OSDMessage( (vlc_object_t *)p_intf, _( "Faster" ) );
 112         vlc_object_release( p_input );
 113     }
 114 }
 115
 116 - (IBAction)slower:(id)sender
 117 {
 118     intf_thread_t * p_intf = [NSApp getIntf];
 119     input_thread_t * p_input = vlc_object_find( p_intf, VLC_OBJECT_INPUT,
 120                                                        FIND_ANYWHERE );
 121     if( p_input != NULL )
 122     {
 123         vlc_value_t val; val.b_bool = VLC_TRUE;
 124
 125         var_Set( p_input, "rate-slower", val );
 126         vout_OSDMessage( (vlc_object_t *)p_intf, _( "Slower" ) );
 127         vlc_object_release( p_input );
 128     }
 129 }
 130
 131 - (IBAction)prev:(id)sender
 132 {
 133     intf_thread_t * p_intf = [NSApp getIntf];
 134     playlist_t * p_playlist = vlc_object_find( p_intf, VLC_OBJECT_PLAYLIST,
 135                                                        FIND_ANYWHERE );
 136     if( p_playlist )
 137     {
 138         playlist_Prev( p_playlist );
 139         vlc_object_release( p_playlist );
 140         vout_OSDMessage( (vlc_object_t *)p_intf, _( "Previous" ) );
 141     }
 142 }
 143
 144 - (IBAction)next:(id)sender
 145 {
 146     intf_thread_t * p_intf = [NSApp getIntf];
 147     playlist_t * p_playlist = vlc_object_find( p_intf, VLC_OBJECT_PLAYLIST,
 148                                                        FIND_ANYWHERE );
 149     if( p_playlist )
 150     {
 151         playlist_Next( p_playlist );
 152         vlc_object_release( p_playlist );
 153         vout_OSDMessage( (vlc_object_t *)p_intf, _( "Next" ) );
 154     }
 155 }
 156
 157 - (IBAction)random:(id)sender
 158 {
 159     intf_thread_t * p_intf = [NSApp getIntf];
 160     vlc_value_t val;
 161     playlist_t * p_playlist = vlc_object_find( p_intf, VLC_OBJECT_PLAYLIST,
 162                                                        FIND_ANYWHERE );
 163     if( p_playlist == NULL )
 164     {
 165         return;
 166     }
 167
 168     var_Get( p_playlist, "random", &val );
 169     val.b_bool = !val.b_bool;
 170     var_Set( p_playlist, "random", val );
 171     if( val.b_bool )
 172     {
 173         vout_OSDMessage( (vlc_object_t *)p_intf, _( "Shuffle On" ) );
 174     }
 175     else
 176     {
 177         vout_OSDMessage( (vlc_object_t *)p_intf, _( "Shuffle Off" ) );
 178     }
 179
 180     vlc_object_release( p_playlist );
 181 }
 182
 183 - (IBAction)repeat:(id)sender
 184 {
 185     intf_thread_t * p_intf = [NSApp getIntf];
 186     vlc_value_t val;
 187     playlist_t * p_playlist = vlc_object_find( p_intf, VLC_OBJECT_PLAYLIST,
 188                                                        FIND_ANYWHERE );
 189     if( p_playlist == NULL )
 190     {
 191         return;
 192     }
 193
 194     var_Get( p_playlist, "repeat", &val );
 195     val.b_bool = !val.b_bool;
 196     var_Set( p_playlist, "repeat", val );
 197     if( val.b_bool )
 198     {
 199         vout_OSDMessage( (vlc_object_t *)p_intf, _( "Repeat On" ) );
 200     }
 201     else
 202     {
 203         vout_OSDMessage( (vlc_object_t *)p_intf, _( "Repeat Off" ) );
 204     }
 205
 206     vlc_object_release( p_playlist );
 207 }
 208
 209 - (IBAction)loop:(id)sender
 210 {
 211     intf_thread_t * p_intf = [NSApp getIntf];
 212     vlc_value_t val;
 213     playlist_t * p_playlist = vlc_object_find( p_intf, VLC_OBJECT_PLAYLIST,
 214                                                        FIND_ANYWHERE );
 215     if( p_playlist == NULL )
 216     {
 217         return;
 218     }
 219
 220     var_Get( p_playlist, "loop", &val );
 221     val.b_bool = !val.b_bool;
 222     var_Set( p_playlist, "loop", val );
 223     if( val.b_bool )
 224     {
 225         vout_OSDMessage( (vlc_object_t *)p_intf, _( "Loop On" ) );
 226     }
 227     else
 228     {
 229         vout_OSDMessage( (vlc_object_t *)p_intf, _( "Loop Off" ) );
 230     }
 231
 232     vlc_object_release( p_playlist );
 233 }
 234
 235 - (IBAction)forward:(id)sender
 236 {
 237     intf_thread_t * p_intf = [NSApp getIntf];
 238     input_thread_t * p_input = vlc_object_find( p_intf, VLC_OBJECT_INPUT,
 239                                                        FIND_ANYWHERE );
 240     if( p_input != NULL )
 241     {
 242         vlc_value_t time;
 243         time.i_time = 10 * 1000000;
 244         var_Set( p_input, "time-offset", time );
 245         vlc_object_release( p_input );
 246     }
 247 }
 248
 249 - (IBAction)backward:(id)sender
 250 {
 251     intf_thread_t * p_intf = [NSApp getIntf];
 252     input_thread_t * p_input = vlc_object_find( p_intf, VLC_OBJECT_INPUT,
 253                                                        FIND_ANYWHERE );
 254     if( p_input != NULL )
 255     {
 256         vlc_value_t time;
 257         time.i_time = -10 * 1000000;
 258         var_Set( p_input, "time-offset", time );
 259         vlc_object_release( p_input );
 260     }
 261 }
 262
 263 - (IBAction)volumeUp:(id)sender
 264 {
 265     intf_thread_t * p_intf = [NSApp getIntf];
 266
 267     if( p_intf->p_sys->b_mute )
 268     {
 269         [self mute: nil];
 270     }
 271
 272     aout_VolumeUp( p_intf, 1, NULL );
 273
 274     [self updateVolumeSlider];
 275 }
 276
 277 - (IBAction)volumeDown:(id)sender
 278 {
 279     intf_thread_t * p_intf = [NSApp getIntf];
 280
 281     if( p_intf->p_sys->b_mute )
 282     {
 283         [self mute: nil];
 284     }
 285
 286     aout_VolumeDown( p_intf, 1, NULL );
 287
 288     [self updateVolumeSlider];
 289 }
 290
 291 - (IBAction)mute:(id)sender
 292 {
 293     intf_thread_t * p_intf = [NSApp getIntf];
 294     audio_volume_t i_volume;
 295
 296     aout_VolumeMute( p_intf, &i_volume );
 297     p_intf->p_sys->b_mute = ( i_volume == 0 );
 298
 299     [self updateVolumeSlider];
 300 }
 301
 302 - (IBAction)volumeSliderUpdated:(id)sender
 303 {
 304     intf_thread_t * p_intf = [NSApp getIntf];
 305     audio_volume_t i_volume = (audio_volume_t)[sender intValue];
 306
 307     aout_VolumeSet( p_intf, i_volume * AOUT_VOLUME_STEP );
 308 }
 309
 310 - (void)updateVolumeSlider
 311 {
 312     intf_thread_t * p_intf = [NSApp getIntf];
 313     audio_volume_t i_volume;
 314     char string[9];
 315
 316     aout_VolumeGet( p_intf, &i_volume );
 317
 318     [o_volumeslider setFloatValue: (float)(i_volume / AOUT_VOLUME_STEP)];
 319
 320     sprintf( string, "Vol %d%%", i_volume*100/AOUT_VOLUME_MAX );
 321     vout_OSDMessage( (vlc_object_t *)p_intf, string );
 322 }
 323
 324 - (IBAction)windowAction:(id)sender
 325 {
 326     id o_window = [NSApp keyWindow];
 327     NSString *o_title = [sender title];
 328     NSArray *o_windows = [NSApp windows];
 329     NSEnumerator *o_enumerator = [o_windows objectEnumerator];
 330     vout_thread_t   *p_vout = vlc_object_find( [NSApp getIntf], VLC_OBJECT_VOUT,
 331                                               FIND_ANYWHERE );
 332
 333     if( p_vout != NULL )
 334     {
 335         while ((o_window = [o_enumerator nextObject]))
 336         {
 337             if( [[o_window className] isEqualToString: @"VLCWindow"] )
 338             {
 339                 if( [o_title isEqualToString: _NS("Half Size") ] )
 340                     [o_window scaleWindowWithFactor: 0.5];
 341                 else if( [o_title isEqualToString: _NS("Normal Size") ] )
 342                     [o_window scaleWindowWithFactor: 1.0];
 343                 else if( [o_title isEqualToString: _NS("Double Size") ] )
 344                     [o_window scaleWindowWithFactor: 2.0];
 345                 else if( [o_title isEqualToString: _NS("Float On Top") ] )
 346                     [o_window toggleFloatOnTop];
 347                 else if( [o_title isEqualToString: _NS("Fit To Screen") ] )
 348                 {
 349                     if( ![o_window isZoomed] )
 350                         [o_window performZoom:self];
 351                 }
 352                 else
 353                     [o_window toggleFullscreen];
 354                 break;
 355             }
 356         }
 357         vlc_object_release( (vlc_object_t *)p_vout );
 358     }
 359 }
 360
 361 - (void)setupVarMenuItem:(NSMenuItem *)o_mi
 362                     target:(vlc_object_t *)p_object
 363                     var:(const char *)psz_variable
 364                     selector:(SEL)pf_callback
 365 {
 366     vlc_value_t val, text;
 367     int i_type = var_Type( p_object, psz_variable );
 368
 369     switch( i_type & VLC_VAR_TYPE )
 370     {
 371     case VLC_VAR_VOID:
 372     case VLC_VAR_BOOL:
 373     case VLC_VAR_VARIABLE:
 374     case VLC_VAR_STRING:
 375     case VLC_VAR_INTEGER:
 376         break;
 377     default:
 378         /* Variable doesn't exist or isn't handled */
 379         return;
 380     }
 381
 382     /* Make sure we want to display the variable */
 383     if( i_type & VLC_VAR_HASCHOICE )
 384     {
 385         var_Change( p_object, psz_variable, VLC_VAR_CHOICESCOUNT, &val, NULL );
 386         if( val.i_int == 0 ) return;
 387         if( (i_type & VLC_VAR_TYPE) != VLC_VAR_VARIABLE && val.i_int == 1 )
 388             return;
 389     }
 390
 391     /* Get the descriptive name of the variable */
 392     var_Change( p_object, psz_variable, VLC_VAR_GETTEXT, &text, NULL );
 393     [o_mi setTitle: [NSApp localizedString: text.psz_string ?
 394                                         text.psz_string : strdup( psz_variable ) ]];
 395
 396     var_Get( p_object, psz_variable, &val );
 397     if( i_type & VLC_VAR_HASCHOICE )
 398     {
 399         NSMenu *o_menu = [o_mi submenu];
 400
 401         [self setupVarMenu: o_menu forMenuItem: o_mi target:p_object
 402                         var:psz_variable selector:pf_callback];
 403
 404         if( text.psz_string ) free( text.psz_string );
 405         return;
 406     }
 407
 408     VLCMenuExt *o_data;
 409     switch( i_type & VLC_VAR_TYPE )
 410     {
 411     case VLC_VAR_VOID:
 412         o_data = [[VLCMenuExt alloc] initWithVar: psz_variable Object: p_object->i_object_id
 413                 Value: val ofType: i_type];
 414         [o_mi setRepresentedObject: [NSValue valueWithPointer:[o_data retain]]];
 415         break;
 416
 417     case VLC_VAR_BOOL:
 418         o_data = [[VLCMenuExt alloc] initWithVar: psz_variable Object: p_object->i_object_id
 419                 Value: val ofType: i_type];
 420         [o_mi setRepresentedObject: [NSValue valueWithPointer:[o_data retain]]];
 421         [o_mi setState: val.b_bool ? TRUE : FALSE ];
 422         break;
 423
 424     default:
 425         if( text.psz_string ) free( text.psz_string );
 426         return;
 427     }
 428
 429     if( (i_type & VLC_VAR_TYPE) == VLC_VAR_STRING ) free( val.psz_string );
 430     if( text.psz_string ) free( text.psz_string );
 431 }
 432
 433
 434 - (void)setupVarMenu:(NSMenu *)o_menu
 435                     forMenuItem: (NSMenuItem *)o_parent
 436                     target:(vlc_object_t *)p_object
 437                     var:(const char *)psz_variable
 438                     selector:(SEL)pf_callback
 439 {
 440     vlc_value_t val, val_list, text_list;
 441     int i_type, i, i_nb_items;
 442
 443     /* remove previous items */
 444     i_nb_items = [o_menu numberOfItems];
 445     for( i = 0; i < i_nb_items; i++ )
 446     {
 447         [o_menu removeItemAtIndex: 0];
 448     }
 449
 450     /* Check the type of the object variable */
 451     i_type = var_Type( p_object, psz_variable );
 452
 453     /* Make sure we want to display the variable */
 454     if( i_type & VLC_VAR_HASCHOICE )
 455     {
 456         var_Change( p_object, psz_variable, VLC_VAR_CHOICESCOUNT, &val, NULL );
 457         if( val.i_int == 0 ) return;
 458         if( (i_type & VLC_VAR_TYPE) != VLC_VAR_VARIABLE && val.i_int == 1 )
 459             return;
 460     }
 461     else
 462     {
 463         return;
 464     }
 465
 466     switch( i_type & VLC_VAR_TYPE )
 467     {
 468     case VLC_VAR_VOID:
 469     case VLC_VAR_BOOL:
 470     case VLC_VAR_VARIABLE:
 471     case VLC_VAR_STRING:
 472     case VLC_VAR_INTEGER:
 473         break;
 474     default:
 475         /* Variable doesn't exist or isn't handled */
 476         return;
 477     }
 478
 479     if( var_Get( p_object, psz_variable, &val ) < 0 )
 480     {
 481         return;
 482     }
 483
 484     if( var_Change( p_object, psz_variable, VLC_VAR_GETLIST,
 485                     &val_list, &text_list ) < 0 )
 486     {
 487         if( (i_type & VLC_VAR_TYPE) == VLC_VAR_STRING ) free( val.psz_string );
 488         return;
 489     }
 490
 491     /* make (un)sensitive */
 492     [o_parent setEnabled: ( val_list.p_list->i_count > 1 )];
 493
 494     for( i = 0; i < val_list.p_list->i_count; i++ )
 495     {
 496         vlc_value_t another_val;
 497         NSMenuItem * o_lmi;
 498         NSString *o_title = @"";
 499         VLCMenuExt *o_data;
 500
 501         switch( i_type & VLC_VAR_TYPE )
 502         {
 503         case VLC_VAR_VARIABLE:
 504
 505             /* This is causing crashes for the moment.
 506             o_title = [NSApp localizedString: text_list.p_list->p_values[i].psz_string ?
 507                 text_list.p_list->p_values[i].psz_string : val_list.p_list->p_values[i].psz_string ];
 508
 509             o_data = [[VLCMenuExt alloc] initWithVar: strdup(psz_variable) Object: p_object->i_object_id
 510                 Value: val ofType: i_type];
 511             [o_lmi setRepresentedObject: [NSValue valueWithPointer:[o_data retain]]];
 512
 513             // Create a submenu
 514             NSMenu *o_menu = [o_lmi submenu];
 515
 516             [self setupVarMenu: o_menu forMenuItem: o_lmi target:p_object
 517                             var:psz_variable selector:pf_callback];
 518 */
 519             return;
 520
 521         case VLC_VAR_STRING:
 522             another_val.psz_string =
 523                 strdup(val_list.p_list->p_values[i].psz_string);
 524
 525             o_title = [NSApp localizedString: text_list.p_list->p_values[i].psz_string ?
 526                 text_list.p_list->p_values[i].psz_string : val_list.p_list->p_values[i].psz_string ];
 527
 528             o_lmi = [o_menu addItemWithTitle: o_title action: pf_callback keyEquivalent: @""];
 529             o_data = [[VLCMenuExt alloc] initWithVar: strdup(psz_variable) Object: p_object->i_object_id
 530                     Value: another_val ofType: i_type];
 531             [o_lmi setRepresentedObject: [NSValue valueWithPointer:[o_data retain]]];
 532             [o_lmi setTarget: self];
 533
 534             if( !strcmp( val.psz_string, val_list.p_list->p_values[i].psz_string ) )
 535                 [o_lmi setState: TRUE ];
 536
 537             break;
 538
 539         case VLC_VAR_INTEGER:
 540
 541              o_title = text_list.p_list->p_values[i].psz_string ?
 542                                  [NSApp localizedString: strdup( text_list.p_list->p_values[i].psz_string )] :
 543                                  [NSString stringWithFormat: @"%d",
 544                                  val_list.p_list->p_values[i].i_int];
 545
 546             o_lmi = [[o_menu addItemWithTitle: o_title action: pf_callback keyEquivalent: @""] retain ];
 547             o_data = [[VLCMenuExt alloc] initWithVar: strdup(psz_variable) Object: p_object->i_object_id
 548                     Value: val_list.p_list->p_values[i] ofType: i_type];
 549             [o_lmi setRepresentedObject: [NSValue valueWithPointer:[ o_data retain]]];
 550             [o_lmi setTarget: self];
 551
 552             if( val_list.p_list->p_values[i].i_int == val.i_int )
 553                 [o_lmi setState: TRUE ];
 554             break;
 555
 556         default:
 557           break;
 558         }
 559     }
 560
 561     /* clean up everything */
 562     if( (i_type & VLC_VAR_TYPE) == VLC_VAR_STRING ) free( val.psz_string );
 563     var_Change( p_object, psz_variable, VLC_VAR_FREELIST, &val_list, &text_list );
 564 }
 565
 566 - (IBAction)toggleVar:(id)sender
 567 {
 568     NSMenuItem *o_mi = (NSMenuItem *)sender;
 569     VLCMenuExt *o_data = [[o_mi representedObject] pointerValue];
 570     [NSThread detachNewThreadSelector: @selector(toggleVarThread:)
 571         toTarget: self withObject: o_data];
 572
 573     return;
 574 }
 575
 576 - (int)toggleVarThread: (id)_o_data
 577 {
 578     vlc_object_t *p_object;
 579     NSAutoreleasePool * o_pool = [[NSAutoreleasePool alloc] init];
 580     VLCMenuExt *o_data = (VLCMenuExt *)_o_data;
 581
 582     vlc_thread_set_priority( [NSApp getIntf] , VLC_THREAD_PRIORITY_LOW );
 583
 584     p_object = (vlc_object_t *)vlc_object_get( [NSApp getIntf],
 585                                     [o_data objectID] );
 586
 587     if( p_object != NULL )
 588     {
 589         var_Set( p_object, strdup([o_data name]), [o_data value] );
 590         vlc_object_release( p_object );
 591         [o_pool release];
 592         return VLC_TRUE;
 593     }
 594     [o_pool release];
 595     return VLC_EGENERIC;
 596 }
 597
 598 @end
 599
 600 @implementation VLCControls (NSMenuValidation)
 601
 602 - (BOOL)validateMenuItem:(NSMenuItem *)o_mi
 603 {
 604     BOOL bEnabled = TRUE;
 605     vlc_value_t val;
 606     intf_thread_t * p_intf = [NSApp getIntf];
 607     playlist_t * p_playlist = vlc_object_find( p_intf, VLC_OBJECT_PLAYLIST,
 608                                                        FIND_ANYWHERE );
 609
 610     if( p_playlist != NULL )
 611     {
 612         vlc_mutex_lock( &p_playlist->object_lock );
 613     }
 614
 615 #define p_input p_playlist->p_input
 616
 617     if( [[o_mi title] isEqualToString: _NS("Faster")] ||
 618         [[o_mi title] isEqualToString: _NS("Slower")] )
 619     {
 620         if( p_playlist != NULL && p_input != NULL )
 621         {
 622             vlc_mutex_lock( &p_input->stream.stream_lock );
 623             bEnabled = p_input->stream.b_pace_control;
 624             vlc_mutex_unlock( &p_input->stream.stream_lock );
 625         }
 626         else
 627         {
 628             bEnabled = FALSE;
 629         }
 630     }
 631     else if( [[o_mi title] isEqualToString: _NS("Stop")] )
 632     {
 633         if( p_playlist == NULL || p_input == NULL )
 634         {
 635             bEnabled = FALSE;
 636         }
 637     }
 638     else if( [[o_mi title] isEqualToString: _NS("Previous")] ||
 639              [[o_mi title] isEqualToString: _NS("Next")] )
 640     {
 641         if( p_playlist == NULL )
 642         {
 643             bEnabled = FALSE;
 644         }
 645         else
 646         {
 647             bEnabled = p_playlist->i_size > 1;
 648
 649             if( p_input != NULL )
 650             {
 651                 vlc_mutex_lock( &p_input->stream.stream_lock );
 652                 bEnabled |= p_input->stream.i_area_nb > 1;
 653                 vlc_mutex_unlock( &p_input->stream.stream_lock );
 654             }
 655         }
 656     }
 657     else if( [[o_mi title] isEqualToString: _NS("Shuffle")] )
 658     {
 659         int i_state;
 660         var_Get( p_playlist, "random", &val );
 661         i_state = val.b_bool ? NSOnState : NSOffState;
 662         [o_mi setState: i_state];
 663     }
 664     else if( [[o_mi title] isEqualToString: _NS("Repeat Item")] )
 665     {
 666         int i_state;
 667         var_Get( p_playlist, "repeat", &val );
 668         i_state = val.b_bool ? NSOnState : NSOffState;
 669         [o_mi setState: i_state];
 670     }
 671     else if( [[o_mi title] isEqualToString: _NS("Repeat Playlist")] )
 672     {
 673         int i_state;
 674         var_Get( p_playlist, "loop", &val );
 675         i_state = val.b_bool ? NSOnState : NSOffState;
 676         [o_mi setState: i_state];
 677     }
 678     else if( [[o_mi title] isEqualToString: _NS("Step Forward")] ||
 679              [[o_mi title] isEqualToString: _NS("Step Backward")] )
 680     {
 681         if( p_playlist != NULL && p_input != NULL )
 682         {
 683             vlc_mutex_lock( &p_input->stream.stream_lock );
 684             bEnabled = p_input->stream.b_seekable;
 685             vlc_mutex_unlock( &p_input->stream.stream_lock );
 686         }
 687         else
 688         {
 689             bEnabled = FALSE;
 690         }
 691     }
 692     else if( [[o_mi title] isEqualToString: _NS("Mute")] )
 693     {
 694         [o_mi setState: p_intf->p_sys->b_mute ? NSOnState : NSOffState];
 695     }
 696     else if( [[o_mi title] isEqualToString: _NS("Fullscreen")] ||
 697                 [[o_mi title] isEqualToString: _NS("Half Size")] ||
 698                 [[o_mi title] isEqualToString: _NS("Normal Size")] ||
 699                 [[o_mi title] isEqualToString: _NS("Double Size")] ||
 700                 [[o_mi title] isEqualToString: _NS("Fit To Screen")] ||
 701                 [[o_mi title] isEqualToString: _NS("Float On Top")] )
 702     {
 703         id o_window;
 704         NSArray *o_windows = [NSApp windows];
 705         NSEnumerator *o_enumerator = [o_windows objectEnumerator];
 706         bEnabled = FALSE;
 707
 708         if ( [[o_mi title] isEqualToString: _NS("Float On Top")] )
 709         {
 710             int i_state = config_GetInt( p_playlist, "macosx-float" ) ?
 711                       NSOnState : NSOffState;
 712             [o_mi setState: i_state];
 713         }
 714
 715         vout_thread_t   *p_vout = vlc_object_find( p_intf, VLC_OBJECT_VOUT,
 716                                               FIND_ANYWHERE );
 717         if( p_vout != NULL )
 718         {
 719             while ((o_window = [o_enumerator nextObject]))
 720             {
 721                 if( [[o_window className] isEqualToString: @"VLCWindow"] )
 722                 {
 723                     bEnabled = TRUE;
 724                     break;
 725                 }
 726             }
 727             vlc_object_release( (vlc_object_t *)p_vout );
 728         }
 729     }
 730
 731     if( p_playlist != NULL )
 732     {
 733         vlc_mutex_unlock( &p_playlist->object_lock );
 734         vlc_object_release( p_playlist );
 735     }
 736
 737     return( bEnabled );
 738 }
 739
 740 @end
 741
 742 /*****************************************************************************
 743  * VLCMenuExt implementation
 744  *****************************************************************************
 745  * Object connected to a playlistitem which remembers the data belonging to
 746  * the variable of the autogenerated menu
 747  *****************************************************************************/
 748 @implementation VLCMenuExt
 749
 750 - (id)initWithVar: (const char *)_psz_name Object: (int)i_id
 751         Value: (vlc_value_t)val ofType: (int)_i_type
 752 {
 753     self = [super init];
 754
 755     if( self != nil )
 756     {
 757         psz_name = strdup( _psz_name );
 758         i_object_id = i_id;
 759         value = val;
 760         i_type = _i_type;
 761     }
 762
 763     return( self );
 764 }
 765
 766 - (void)dealloc
 767 {
 768     free( psz_name );
 769 }
 770
 771 - (char *)name
 772 {
 773     return psz_name;
 774 }
 775
 776 - (int)objectID
 777 {
 778     return i_object_id;
 779 }
 780
 781 - (vlc_value_t)value
 782 {
 783     return value;
 784 }
 785
 786 - (int)type
 787 {
 788     return i_type;
 789 }
 790
 791 @end