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 1.47 2003/07/29 21:14:10 gbazin 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     vlc_value_t val;
 134     intf_thread_t * p_intf = [NSApp getIntf];
 135
 136     playlist_t * p_playlist = vlc_object_find( p_intf, VLC_OBJECT_PLAYLIST,
 137                                                        FIND_ANYWHERE );
 138     if( p_playlist == NULL )
 139     {
 140         return;
 141     }
 142
 143     vlc_mutex_lock( &p_playlist->object_lock );
 144
 145     if( p_playlist->p_input == NULL )
 146     {
 147         vlc_mutex_unlock( &p_playlist->object_lock );
 148         vlc_object_release( p_playlist );
 149         return;
 150     }
 151
 152     vlc_mutex_lock( &p_playlist->p_input->stream.stream_lock );
 153     val.b_bool = VLC_TRUE;
 154
 155 #define p_area p_playlist->p_input->stream.p_selected_area
 156     if( p_area->i_part > 0 && p_area->i_part_nb > 1)
 157     {
 158         vlc_mutex_unlock( &p_playlist->p_input->stream.stream_lock );
 159         var_Set( p_playlist->p_input, "prev-chapter", val );
 160         vlc_mutex_unlock( &p_playlist->object_lock );
 161     }
 162     else if( p_area->i_id > 1 )
 163     {
 164         vlc_mutex_unlock( &p_playlist->p_input->stream.stream_lock );
 165         var_Set( p_playlist->p_input, "prev-title", val );
 166         vlc_mutex_unlock( &p_playlist->object_lock );
 167     }
 168     else
 169     {
 170         vlc_mutex_unlock( &p_playlist->p_input->stream.stream_lock );
 171         vlc_mutex_unlock( &p_playlist->object_lock );
 172         playlist_Prev( p_playlist );
 173     }
 174 #undef p_area
 175
 176     vlc_object_release( p_playlist );
 177 }
 178
 179 - (IBAction)next:(id)sender
 180 {
 181     vlc_value_t val;
 182     intf_thread_t * p_intf = [NSApp getIntf];
 183
 184     playlist_t * p_playlist = vlc_object_find( p_intf, VLC_OBJECT_PLAYLIST,
 185                                                        FIND_ANYWHERE );
 186     if( p_playlist == NULL )
 187     {
 188         return;
 189     }
 190
 191     vlc_mutex_lock( &p_playlist->object_lock );
 192
 193     if( p_playlist->p_input == NULL )
 194     {
 195         vlc_mutex_unlock( &p_playlist->object_lock );
 196         vlc_object_release( p_playlist );
 197         return;
 198     }
 199
 200     vlc_mutex_lock( &p_playlist->p_input->stream.stream_lock );
 201     val.b_bool = VLC_TRUE;
 202
 203 #define p_area p_playlist->p_input->stream.p_selected_area
 204     if( p_area->i_part < p_area->i_part_nb - 1 && p_area->i_part_nb > 1 )
 205     {
 206         vlc_mutex_unlock( &p_playlist->p_input->stream.stream_lock );
 207         var_Set( p_playlist->p_input, "next-chapter", val );
 208         vlc_mutex_unlock( &p_playlist->object_lock );
 209     }
 210     else if( p_area->i_id < p_playlist->p_input->stream.i_area_nb && p_playlist->p_input->stream.i_area_nb > 1 )
 211     {
 212         vlc_mutex_unlock( &p_playlist->p_input->stream.stream_lock );
 213         var_Set( p_playlist->p_input, "next-title", val );
 214         vlc_mutex_unlock( &p_playlist->object_lock );
 215     }
 216     else
 217     {
 218         vlc_mutex_unlock( &p_playlist->p_input->stream.stream_lock );
 219         vlc_mutex_unlock( &p_playlist->object_lock );
 220         playlist_Next( p_playlist );
 221     }
 222 #undef p_area
 223
 224     vlc_object_release( p_playlist );
 225 }
 226
 227 - (IBAction)loop:(id)sender
 228 {
 229     intf_thread_t * p_intf = [NSApp getIntf];
 230
 231     playlist_t * p_playlist = vlc_object_find( p_intf, VLC_OBJECT_PLAYLIST,
 232                                                        FIND_ANYWHERE );
 233     if( p_playlist == NULL )
 234     {
 235         return;
 236     }
 237
 238     config_PutInt( p_playlist, "loop",
 239                    !config_GetInt( p_playlist, "loop" ) );
 240
 241     vlc_object_release( p_playlist );
 242 }
 243
 244 - (IBAction)forward:(id)sender
 245 {
 246     intf_thread_t * p_intf = [NSApp getIntf];
 247     playlist_t * p_playlist = vlc_object_find( p_intf, VLC_OBJECT_PLAYLIST,
 248                                                        FIND_ANYWHERE );
 249     if( p_playlist == NULL || p_playlist->p_input == NULL )
 250     {
 251         if ( p_playlist != NULL ) vlc_object_release( p_playlist );
 252         return;
 253     }
 254
 255     playlist_Play( p_playlist );
 256     input_Seek( p_playlist->p_input, 5, INPUT_SEEK_SECONDS | INPUT_SEEK_CUR );
 257     vlc_object_release( p_playlist );
 258 }
 259
 260 - (IBAction)backward:(id)sender
 261 {
 262     intf_thread_t * p_intf = [NSApp getIntf];
 263     playlist_t * p_playlist = vlc_object_find( p_intf, VLC_OBJECT_PLAYLIST,
 264                                                        FIND_ANYWHERE );
 265     if( p_playlist == NULL || p_playlist->p_input == NULL )
 266     {
 267         if ( p_playlist != NULL ) vlc_object_release( p_playlist );
 268         return;
 269     }
 270
 271     playlist_Play( p_playlist );
 272     input_Seek( p_playlist->p_input, -5, INPUT_SEEK_SECONDS | INPUT_SEEK_CUR );
 273     vlc_object_release( p_playlist );
 274 }
 275
 276 - (IBAction)volumeUp:(id)sender
 277 {
 278     intf_thread_t * p_intf = [NSApp getIntf];
 279
 280     if( p_intf->p_sys->b_mute )
 281     {
 282         [self mute: nil];
 283     }
 284
 285     aout_VolumeUp( p_intf, 1, NULL );
 286
 287     [self updateVolumeSlider];
 288 }
 289
 290 - (IBAction)volumeDown:(id)sender
 291 {
 292     intf_thread_t * p_intf = [NSApp getIntf];
 293
 294     if( p_intf->p_sys->b_mute )
 295     {
 296         [self mute: nil];
 297     }
 298
 299     aout_VolumeDown( p_intf, 1, NULL );
 300
 301     [self updateVolumeSlider];
 302 }
 303
 304 - (IBAction)mute:(id)sender
 305 {
 306     intf_thread_t * p_intf = [NSApp getIntf];
 307     audio_volume_t i_volume;
 308
 309     aout_VolumeMute( p_intf, &i_volume );
 310     p_intf->p_sys->b_mute = ( i_volume == 0 );
 311
 312     [self updateVolumeSlider];
 313 }
 314
 315 - (IBAction)volumeSliderUpdated:(id)sender
 316 {
 317     intf_thread_t * p_intf = [NSApp getIntf];
 318     audio_volume_t i_volume = (audio_volume_t)[sender intValue];
 319
 320     aout_VolumeSet( p_intf, i_volume * AOUT_VOLUME_STEP );
 321 }
 322
 323 - (void)updateVolumeSlider
 324 {
 325     intf_thread_t * p_intf = [NSApp getIntf];
 326     audio_volume_t i_volume;
 327
 328     aout_VolumeGet( p_intf, &i_volume );
 329
 330     [o_volumeslider setFloatValue: (float)(i_volume / AOUT_VOLUME_STEP)];
 331 }
 332
 333 - (IBAction)windowAction:(id)sender
 334 {
 335     id o_window = [NSApp keyWindow];
 336     NSString *o_title = [sender title];
 337     NSArray *o_windows = [NSApp windows];
 338     NSEnumerator *o_enumerator = [o_windows objectEnumerator];
 339     vout_thread_t   *p_vout = vlc_object_find( [NSApp getIntf], VLC_OBJECT_VOUT,
 340                                               FIND_ANYWHERE );
 341
 342     if( p_vout != NULL )
 343     {
 344         while ((o_window = [o_enumerator nextObject]))
 345         {
 346             if( [[o_window className] isEqualToString: @"VLCWindow"] )
 347             {
 348                 if( [o_title isEqualToString: _NS("Fullscreen") ] )
 349                     [o_window toggleFullscreen];
 350                 else if( [o_title isEqualToString: _NS("Half Size") ] )
 351                     [o_window scaleWindowWithFactor: 0.5];
 352                 else if( [o_title isEqualToString: _NS("Normal Size") ] )
 353                     [o_window scaleWindowWithFactor: 1.0];
 354                 else if( [o_title isEqualToString: _NS("Double Size") ] )
 355                     [o_window scaleWindowWithFactor: 2.0];
 356                 else if( [o_title isEqualToString: _NS("Float On Top") ] )
 357                     [o_window toggleFloatOnTop];
 358                 else if( [o_title isEqualToString: _NS("Fit To Screen") ] )
 359                 {
 360                     if( ![o_window isZoomed] )
 361                         [o_window performZoom:self];
 362                 }
 363             }
 364         }
 365         vlc_object_release( (vlc_object_t *)p_vout );
 366     }
 367 }
 368
 369 - (void)setupVarMenuItem:(NSMenuItem *)o_mi
 370                     target:(vlc_object_t *)p_object
 371                     var:(const char *)psz_variable
 372                     selector:(SEL)pf_callback
 373 {
 374     vlc_value_t val, text;
 375     int i_type = var_Type( p_object, psz_variable );
 376
 377     switch( i_type & VLC_VAR_TYPE )
 378     {
 379     case VLC_VAR_VOID:
 380     case VLC_VAR_BOOL:
 381     case VLC_VAR_VARIABLE:
 382     case VLC_VAR_STRING:
 383     case VLC_VAR_INTEGER:
 384         break;
 385     default:
 386         /* Variable doesn't exist or isn't handled */
 387         return;
 388     }
 389
 390     /* Make sure we want to display the variable */
 391     if( i_type & VLC_VAR_HASCHOICE )
 392     {
 393         var_Change( p_object, psz_variable, VLC_VAR_CHOICESCOUNT, &val, NULL );
 394         if( val.i_int == 0 ) return;
 395         if( (i_type & VLC_VAR_TYPE) != VLC_VAR_VARIABLE && val.i_int == 1 )
 396             return;
 397     }
 398
 399     /* Get the descriptive name of the variable */
 400     var_Change( p_object, psz_variable, VLC_VAR_GETTEXT, &text, NULL );
 401     [o_mi setTitle: [NSApp localizedString: text.psz_string ?
 402                                         text.psz_string : strdup( psz_variable ) ]];
 403
 404     var_Get( p_object, psz_variable, &val );
 405     if( i_type & VLC_VAR_HASCHOICE )
 406     {
 407         NSMenu *o_menu = [o_mi submenu];
 408
 409         [self setupVarMenu: o_menu forMenuItem: o_mi target:p_object
 410                         var:psz_variable selector:pf_callback];
 411
 412         if( text.psz_string ) free( text.psz_string );
 413         return;
 414     }
 415
 416     VLCMenuExt *o_data;
 417     switch( i_type & VLC_VAR_TYPE )
 418     {
 419     case VLC_VAR_VOID:
 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         break;
 424
 425     case VLC_VAR_BOOL:
 426         o_data = [[VLCMenuExt alloc] initWithVar: psz_variable Object: p_object->i_object_id
 427                 Value: val ofType: i_type];
 428         [o_mi setRepresentedObject: [NSValue valueWithPointer:[o_data retain]]];
 429         [o_mi setState: val.b_bool ? TRUE : FALSE ];
 430         break;
 431
 432     default:
 433         if( text.psz_string ) free( text.psz_string );
 434         return;
 435     }
 436
 437     if( (i_type & VLC_VAR_TYPE) == VLC_VAR_STRING ) free( val.psz_string );
 438     if( text.psz_string ) free( text.psz_string );
 439 }
 440
 441
 442 - (void)setupVarMenu:(NSMenu *)o_menu
 443                     forMenuItem: (NSMenuItem *)o_parent
 444                     target:(vlc_object_t *)p_object
 445                     var:(const char *)psz_variable
 446                     selector:(SEL)pf_callback
 447 {
 448     vlc_value_t val, val_list, text_list;
 449     int i_type, i, i_nb_items;
 450
 451     /* remove previous items */
 452     i_nb_items = [o_menu numberOfItems];
 453     for( i = 0; i < i_nb_items; i++ )
 454     {
 455         [o_menu removeItemAtIndex: 0];
 456     }
 457
 458     /* Check the type of the object variable */
 459     i_type = var_Type( p_object, psz_variable );
 460
 461     /* Make sure we want to display the variable */
 462     if( i_type & VLC_VAR_HASCHOICE )
 463     {
 464         var_Change( p_object, psz_variable, VLC_VAR_CHOICESCOUNT, &val, NULL );
 465         if( val.i_int == 0 ) return;
 466         if( (i_type & VLC_VAR_TYPE) != VLC_VAR_VARIABLE && val.i_int == 1 )
 467             return;
 468     }
 469     else
 470     {
 471         return;
 472     }
 473
 474     switch( i_type & VLC_VAR_TYPE )
 475     {
 476     case VLC_VAR_VOID:
 477     case VLC_VAR_BOOL:
 478     case VLC_VAR_VARIABLE:
 479     case VLC_VAR_STRING:
 480     case VLC_VAR_INTEGER:
 481         break;
 482     default:
 483         /* Variable doesn't exist or isn't handled */
 484         return;
 485     }
 486
 487     if( var_Get( p_object, psz_variable, &val ) < 0 )
 488     {
 489         return;
 490     }
 491
 492     if( var_Change( p_object, psz_variable, VLC_VAR_GETLIST,
 493                     &val_list, &text_list ) < 0 )
 494     {
 495         if( (i_type & VLC_VAR_TYPE) == VLC_VAR_STRING ) free( val.psz_string );
 496         return;
 497     }
 498
 499     /* make (un)sensitive */
 500     [o_parent setEnabled: ( val_list.p_list->i_count > 1 )];
 501
 502     for( i = 0; i < val_list.p_list->i_count; i++ )
 503     {
 504         vlc_value_t another_val;
 505         NSMenuItem * o_lmi;
 506         NSString *o_title = @"";
 507         VLCMenuExt *o_data;
 508
 509         switch( i_type & VLC_VAR_TYPE )
 510         {
 511         case VLC_VAR_VARIABLE:
 512
 513             /* This is causing crashes for the moment.
 514             o_title = [NSApp localizedString: text_list.p_list->p_values[i].psz_string ?
 515                 text_list.p_list->p_values[i].psz_string : val_list.p_list->p_values[i].psz_string ];
 516
 517             o_data = [[VLCMenuExt alloc] initWithVar: strdup(psz_variable) Object: p_object->i_object_id
 518                 Value: val ofType: i_type];
 519             [o_lmi setRepresentedObject: [NSValue valueWithPointer:[o_data retain]]];
 520
 521             // Create a submenu
 522             NSMenu *o_menu = [o_lmi submenu];
 523
 524             [self setupVarMenu: o_menu forMenuItem: o_lmi target:p_object
 525                             var:psz_variable selector:pf_callback];
 526 */
 527             return;
 528
 529         case VLC_VAR_STRING:
 530             another_val.psz_string =
 531                 strdup(val_list.p_list->p_values[i].psz_string);
 532
 533             o_title = [NSApp localizedString: text_list.p_list->p_values[i].psz_string ?
 534                 text_list.p_list->p_values[i].psz_string : val_list.p_list->p_values[i].psz_string ];
 535
 536             o_lmi = [o_menu addItemWithTitle: o_title action: pf_callback keyEquivalent: @""];
 537             o_data = [[VLCMenuExt alloc] initWithVar: strdup(psz_variable) Object: p_object->i_object_id
 538                     Value: another_val ofType: i_type];
 539             [o_lmi setRepresentedObject: [NSValue valueWithPointer:[o_data retain]]];
 540             [o_lmi setTarget: self];
 541
 542             if( !strcmp( val.psz_string, val_list.p_list->p_values[i].psz_string ) )
 543                 [o_lmi setState: TRUE ];
 544
 545             break;
 546
 547         case VLC_VAR_INTEGER:
 548
 549              o_title = text_list.p_list->p_values[i].psz_string ?
 550                                  [NSApp localizedString: strdup( text_list.p_list->p_values[i].psz_string )] :
 551                                  [NSString stringWithFormat: @"%d",
 552                                  val_list.p_list->p_values[i].i_int];
 553
 554             o_lmi = [[o_menu addItemWithTitle: o_title action: pf_callback keyEquivalent: @""] retain ];
 555             o_data = [[VLCMenuExt alloc] initWithVar: strdup(psz_variable) Object: p_object->i_object_id
 556                     Value: val_list.p_list->p_values[i] ofType: i_type];
 557             [o_lmi setRepresentedObject: [NSValue valueWithPointer:[ o_data retain]]];
 558             [o_lmi setTarget: self];
 559
 560             if( val_list.p_list->p_values[i].i_int == val.i_int )
 561                 [o_lmi setState: TRUE ];
 562             break;
 563
 564         default:
 565           break;
 566         }
 567     }
 568
 569     /* clean up everything */
 570     if( (i_type & VLC_VAR_TYPE) == VLC_VAR_STRING ) free( val.psz_string );
 571     var_Change( p_object, psz_variable, VLC_VAR_FREELIST, &val_list, &text_list );
 572 }
 573
 574 - (IBAction)toggleVar:(id)sender
 575 {
 576     NSMenuItem *o_mi = (NSMenuItem *)sender;
 577     VLCMenuExt *o_data = [[o_mi representedObject] pointerValue];
 578     [NSThread detachNewThreadSelector: @selector(toggleVarThread:)
 579         toTarget: self withObject: o_data];
 580
 581     return;
 582 }
 583
 584 - (int)toggleVarThread: (id)_o_data
 585 {
 586     vlc_object_t *p_object;
 587     NSAutoreleasePool * o_pool = [[NSAutoreleasePool alloc] init];
 588     VLCMenuExt *o_data = (VLCMenuExt *)_o_data;
 589
 590     vlc_thread_set_priority( [NSApp getIntf] , VLC_THREAD_PRIORITY_LOW );
 591
 592     p_object = (vlc_object_t *)vlc_object_get( [NSApp getIntf],
 593                                     [o_data objectID] );
 594
 595     if( p_object != NULL )
 596     {
 597         var_Set( p_object, strdup([o_data name]), [o_data value] );
 598         vlc_object_release( p_object );
 599         [o_pool release];
 600         return VLC_TRUE;
 601     }
 602     [o_pool release];
 603     return VLC_EGENERIC;
 604 }
 605
 606 @end
 607
 608 @implementation VLCControls (NSMenuValidation)
 609
 610 - (BOOL)validateMenuItem:(NSMenuItem *)o_mi
 611 {
 612     BOOL bEnabled = TRUE;
 613     intf_thread_t * p_intf = [NSApp getIntf];
 614
 615     playlist_t * p_playlist = vlc_object_find( p_intf, VLC_OBJECT_PLAYLIST,
 616                                                        FIND_ANYWHERE );
 617
 618     if( p_playlist != NULL )
 619     {
 620         vlc_mutex_lock( &p_playlist->object_lock );
 621     }
 622
 623 #define p_input p_playlist->p_input
 624
 625     if( [[o_mi title] isEqualToString: _NS("Faster")] ||
 626         [[o_mi title] isEqualToString: _NS("Slower")] )
 627     {
 628         if( p_playlist != NULL && p_input != NULL )
 629         {
 630             vlc_mutex_lock( &p_input->stream.stream_lock );
 631             bEnabled = p_input->stream.b_pace_control;
 632             vlc_mutex_unlock( &p_input->stream.stream_lock );
 633         }
 634         else
 635         {
 636             bEnabled = FALSE;
 637         }
 638     }
 639     else if( [[o_mi title] isEqualToString: _NS("Stop")] )
 640     {
 641         if( p_playlist == NULL || p_input == NULL )
 642         {
 643             bEnabled = FALSE;
 644         }
 645     }
 646     else if( [[o_mi title] isEqualToString: _NS("Previous")] ||
 647              [[o_mi title] isEqualToString: _NS("Next")] )
 648     {
 649         if( p_playlist == NULL )
 650         {
 651             bEnabled = FALSE;
 652         }
 653         else
 654         {
 655             bEnabled = p_playlist->i_size > 1;
 656
 657             if( p_input != NULL )
 658             {
 659                 vlc_mutex_lock( &p_input->stream.stream_lock );
 660                 bEnabled |= p_input->stream.i_area_nb > 1;
 661                 vlc_mutex_unlock( &p_input->stream.stream_lock );
 662             }
 663         }
 664     }
 665     else if( [[o_mi title] isEqualToString: _NS("Loop")] )
 666     {
 667         int i_state = config_GetInt( p_playlist, "loop" ) ?
 668                       NSOnState : NSOffState;
 669
 670         [o_mi setState: i_state];
 671     }
 672     else if( [[o_mi title] isEqualToString: _NS("Step Forward")] ||
 673              [[o_mi title] isEqualToString: _NS("Step Backward")] )
 674     {
 675         if( p_playlist != NULL && p_input != NULL )
 676         {
 677             vlc_mutex_lock( &p_input->stream.stream_lock );
 678             bEnabled = p_input->stream.b_seekable;
 679             vlc_mutex_unlock( &p_input->stream.stream_lock );
 680         }
 681         else
 682         {
 683             bEnabled = FALSE;
 684         }
 685     }
 686     else if( [[o_mi title] isEqualToString: _NS("Mute")] )
 687     {
 688         [o_mi setState: p_intf->p_sys->b_mute ? NSOnState : NSOffState];
 689     }
 690     else if( [[o_mi title] isEqualToString: _NS("Fullscreen")] ||
 691                 [[o_mi title] isEqualToString: _NS("Half Size")] ||
 692                 [[o_mi title] isEqualToString: _NS("Normal Size")] ||
 693                 [[o_mi title] isEqualToString: _NS("Double Size")] ||
 694                 [[o_mi title] isEqualToString: _NS("Fit To Screen")] ||
 695                 [[o_mi title] isEqualToString: _NS("Float On Top")] )
 696     {
 697         id o_window;
 698         NSArray *o_windows = [NSApp windows];
 699         NSEnumerator *o_enumerator = [o_windows objectEnumerator];
 700         bEnabled = FALSE;
 701
 702         if ( [[o_mi title] isEqualToString: _NS("Float On Top")] )
 703         {
 704             int i_state = config_GetInt( p_playlist, "macosx-float" ) ?
 705                       NSOnState : NSOffState;
 706             [o_mi setState: i_state];
 707         }
 708
 709         vout_thread_t   *p_vout = vlc_object_find( p_intf, VLC_OBJECT_VOUT,
 710                                               FIND_ANYWHERE );
 711         if( p_vout != NULL )
 712         {
 713             while ((o_window = [o_enumerator nextObject]))
 714             {
 715                 if( [[o_window className] isEqualToString: @"VLCWindow"] )
 716                 {
 717                     bEnabled = TRUE;
 718                     break;
 719                 }
 720             }
 721             vlc_object_release( (vlc_object_t *)p_vout );
 722         }
 723     }
 724
 725     if( p_playlist != NULL )
 726     {
 727         vlc_mutex_unlock( &p_playlist->object_lock );
 728         vlc_object_release( p_playlist );
 729     }
 730
 731     return( bEnabled );
 732 }
 733
 734 @end
 735
 736 /*****************************************************************************
 737  * VLCMenuExt implementation
 738  *****************************************************************************
 739  * Object connected to a playlistitem which remembers the data belonging to
 740  * the variable of the autogenerated menu
 741  *****************************************************************************/
 742 @implementation VLCMenuExt
 743
 744 - (id)initWithVar: (const char *)_psz_name Object: (int)i_id
 745         Value: (vlc_value_t)val ofType: (int)_i_type
 746 {
 747     self = [super init];
 748
 749     if( self != nil )
 750     {
 751         psz_name = strdup( _psz_name );
 752         i_object_id = i_id;
 753         value = val;
 754         i_type = _i_type;
 755     }
 756
 757     return( self );
 758 }
 759
 760 - (void)dealloc
 761 {
 762     free( psz_name );
 763 }
 764
 765 - (char *)name
 766 {
 767     return psz_name;
 768 }
 769
 770 - (int)objectID
 771 {
 772     return i_object_id;
 773 }
 774
 775 - (vlc_value_t)value
 776 {
 777     return value;
 778 }
 779
 780 - (int)type
 781 {
 782     return i_type;
 783 }
 784
 785 @end