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

   1 /*****************************************************************************
   2  * controls.m: MacOS X interface module
   3  *****************************************************************************
   4  * Copyright (C) 2002-2003 VideoLAN
   5  * $Id: controls.m,v 1.61 2004/02/17 03:12:00 hartman Exp $
   6  *
   7  * Authors: Jon Lech Johansen <jon-vl@nanocrew.net>
   8  *          Christophe Massiot <massiot@via.ecp.fr>
   9  *          Derk-Jan Hartman <hartman at videolan dot org>
  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( 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( 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( 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( 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( 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( 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( 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( p_intf, _( "Random On" ) );
 174     }
 175     else
 176     {
 177         vout_OSDMessage( p_intf, _( "Random Off" ) );
 178     }
 179
 180     p_intf->p_sys->b_playlist_update = VLC_TRUE;
 181     p_intf->p_sys->b_intf_update = VLC_TRUE;
 182     vlc_object_release( p_playlist );
 183 }
 184
 185 - (IBAction)repeat:(id)sender
 186 {
 187     intf_thread_t * p_intf = [NSApp getIntf];
 188     vlc_value_t val;
 189     playlist_t * p_playlist = vlc_object_find( p_intf, VLC_OBJECT_PLAYLIST,
 190                                                        FIND_ANYWHERE );
 191     if( p_playlist == NULL )
 192     {
 193         return;
 194     }
 195
 196     var_Get( p_playlist, "repeat", &val );
 197     val.b_bool = !val.b_bool;
 198     var_Set( p_playlist, "repeat", val );
 199     if( val.b_bool )
 200     {
 201         vout_OSDMessage( p_intf, _( "Repeat All" ) );
 202     }
 203     else
 204     {
 205         vout_OSDMessage( p_intf, _( "Repeat Off" ) );
 206     }
 207
 208     p_intf->p_sys->b_playlist_update = VLC_TRUE;
 209     p_intf->p_sys->b_intf_update = VLC_TRUE;
 210     vlc_object_release( p_playlist );
 211 }
 212
 213 - (IBAction)loop:(id)sender
 214 {
 215     intf_thread_t * p_intf = [NSApp getIntf];
 216     vlc_value_t val;
 217     playlist_t * p_playlist = vlc_object_find( p_intf, VLC_OBJECT_PLAYLIST,
 218                                                        FIND_ANYWHERE );
 219     if( p_playlist == NULL )
 220     {
 221         return;
 222     }
 223
 224     var_Get( p_playlist, "loop", &val );
 225     val.b_bool = !val.b_bool;
 226     var_Set( p_playlist, "loop", val );
 227     if( val.b_bool )
 228     {
 229         vout_OSDMessage( p_intf, _( "Repeat One" ) );
 230     }
 231     else
 232     {
 233         vout_OSDMessage( p_intf, _( "Repeat Off" ) );
 234     }
 235
 236     p_intf->p_sys->b_playlist_update = VLC_TRUE;
 237     p_intf->p_sys->b_intf_update = VLC_TRUE;
 238     vlc_object_release( p_playlist );
 239 }
 240
 241 - (IBAction)forward:(id)sender
 242 {
 243     intf_thread_t * p_intf = [NSApp getIntf];
 244     input_thread_t * p_input = vlc_object_find( p_intf, VLC_OBJECT_INPUT,
 245                                                        FIND_ANYWHERE );
 246     if( p_input != NULL )
 247     {
 248         vlc_value_t time;
 249         time.i_time = 10 * 1000000;
 250         var_Set( p_input, "time-offset", time );
 251         vlc_object_release( p_input );
 252     }
 253 }
 254
 255 - (IBAction)backward:(id)sender
 256 {
 257     intf_thread_t * p_intf = [NSApp getIntf];
 258     input_thread_t * p_input = vlc_object_find( p_intf, VLC_OBJECT_INPUT,
 259                                                        FIND_ANYWHERE );
 260     if( p_input != NULL )
 261     {
 262         vlc_value_t time;
 263         time.i_time = -10 * 1000000;
 264         var_Set( p_input, "time-offset", time );
 265         vlc_object_release( p_input );
 266     }
 267 }
 268
 269 - (IBAction)volumeUp:(id)sender
 270 {
 271     intf_thread_t * p_intf = [NSApp getIntf];
 272
 273     if( p_intf->p_sys->b_mute )
 274     {
 275         [self mute: nil];
 276     }
 277
 278     aout_VolumeUp( p_intf, 1, NULL );
 279
 280     [self updateVolumeSlider];
 281 }
 282
 283 - (IBAction)volumeDown:(id)sender
 284 {
 285     intf_thread_t * p_intf = [NSApp getIntf];
 286
 287     if( p_intf->p_sys->b_mute )
 288     {
 289         [self mute: nil];
 290     }
 291
 292     aout_VolumeDown( p_intf, 1, NULL );
 293
 294     [self updateVolumeSlider];
 295 }
 296
 297 - (IBAction)mute:(id)sender
 298 {
 299     intf_thread_t * p_intf = [NSApp getIntf];
 300     audio_volume_t i_volume;
 301
 302     aout_VolumeMute( p_intf, &i_volume );
 303     p_intf->p_sys->b_mute = ( i_volume == 0 );
 304
 305     [self updateVolumeSlider];
 306 }
 307
 308 - (IBAction)volumeSliderUpdated:(id)sender
 309 {
 310     intf_thread_t * p_intf = [NSApp getIntf];
 311     audio_volume_t i_volume = (audio_volume_t)[sender intValue];
 312
 313     aout_VolumeSet( p_intf, i_volume * AOUT_VOLUME_STEP );
 314 }
 315
 316 - (void)updateVolumeSlider
 317 {
 318     intf_thread_t * p_intf = [NSApp getIntf];
 319     audio_volume_t i_volume;
 320
 321     aout_VolumeGet( p_intf, &i_volume );
 322
 323     [o_volumeslider setFloatValue: (float)(i_volume / AOUT_VOLUME_STEP)];
 324
 325     vout_OSDMessage( p_intf, "Vol %d%%", i_volume*100/AOUT_VOLUME_MAX );
 326 }
 327
 328 - (IBAction)windowAction:(id)sender
 329 {
 330     id o_window = [NSApp keyWindow];
 331     NSString *o_title = [sender title];
 332     NSArray *o_windows = [NSApp orderedWindows];
 333     NSEnumerator *o_enumerator = [o_windows objectEnumerator];
 334     vout_thread_t   *p_vout = vlc_object_find( [NSApp getIntf], VLC_OBJECT_VOUT,
 335                                               FIND_ANYWHERE );
 336
 337     if( p_vout != NULL )
 338     {
 339         while ((o_window = [o_enumerator nextObject]))
 340         {
 341             if( [[o_window className] isEqualToString: @"VLCWindow"] )
 342             {
 343                 if( [o_title isEqualToString: _NS("Half Size") ] )
 344                     [o_window scaleWindowWithFactor: 0.5];
 345                 else if( [o_title isEqualToString: _NS("Normal Size") ] )
 346                     [o_window scaleWindowWithFactor: 1.0];
 347                 else if( [o_title isEqualToString: _NS("Double Size") ] )
 348                     [o_window scaleWindowWithFactor: 2.0];
 349                 else if( [o_title isEqualToString: _NS("Float on Top") ] )
 350                     [o_window toggleFloatOnTop];
 351                 else if( [o_title isEqualToString: _NS("Fit to Screen") ] )
 352                 {
 353                     if( ![o_window isZoomed] )
 354                         [o_window performZoom:self];
 355                 }
 356                 else
 357                 {
 358                     [o_window toggleFullscreen];
 359                 }
 360                 break;
 361             }
 362         }
 363         vlc_object_release( (vlc_object_t *)p_vout );
 364     }
 365 }
 366
 367 - (void)setupVarMenuItem:(NSMenuItem *)o_mi
 368                     target:(vlc_object_t *)p_object
 369                     var:(const char *)psz_variable
 370                     selector:(SEL)pf_callback
 371 {
 372     vlc_value_t val, text;
 373     int i_type = var_Type( p_object, psz_variable );
 374
 375     switch( i_type & VLC_VAR_TYPE )
 376     {
 377     case VLC_VAR_VOID:
 378     case VLC_VAR_BOOL:
 379     case VLC_VAR_VARIABLE:
 380     case VLC_VAR_STRING:
 381     case VLC_VAR_INTEGER:
 382         break;
 383     default:
 384         /* Variable doesn't exist or isn't handled */
 385         return;
 386     }
 387
 388     /* Make sure we want to display the variable */
 389     if( i_type & VLC_VAR_HASCHOICE )
 390     {
 391         var_Change( p_object, psz_variable, VLC_VAR_CHOICESCOUNT, &val, NULL );
 392         if( val.i_int == 0 ) return;
 393         if( (i_type & VLC_VAR_TYPE) != VLC_VAR_VARIABLE && val.i_int == 1 )
 394             return;
 395     }
 396
 397     /* Get the descriptive name of the variable */
 398     var_Change( p_object, psz_variable, VLC_VAR_GETTEXT, &text, NULL );
 399     [o_mi setTitle: [NSApp localizedString: text.psz_string ?
 400                                         text.psz_string : strdup( psz_variable ) ]];
 401
 402     var_Get( p_object, psz_variable, &val );
 403     if( i_type & VLC_VAR_HASCHOICE )
 404     {
 405         NSMenu *o_menu = [o_mi submenu];
 406
 407         [self setupVarMenu: o_menu forMenuItem: o_mi target:p_object
 408                         var:psz_variable selector:pf_callback];
 409
 410         if( text.psz_string ) free( text.psz_string );
 411         return;
 412     }
 413
 414     VLCMenuExt *o_data;
 415     switch( i_type & VLC_VAR_TYPE )
 416     {
 417     case VLC_VAR_VOID:
 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         break;
 422
 423     case VLC_VAR_BOOL:
 424         o_data = [[VLCMenuExt alloc] initWithVar: psz_variable Object: p_object->i_object_id
 425                 Value: val ofType: i_type];
 426         [o_mi setRepresentedObject: [NSValue valueWithPointer:[o_data retain]]];
 427         [o_mi setState: val.b_bool ? TRUE : FALSE ];
 428         break;
 429
 430     default:
 431         if( text.psz_string ) free( text.psz_string );
 432         return;
 433     }
 434
 435     if( (i_type & VLC_VAR_TYPE) == VLC_VAR_STRING ) free( val.psz_string );
 436     if( text.psz_string ) free( text.psz_string );
 437 }
 438
 439
 440 - (void)setupVarMenu:(NSMenu *)o_menu
 441                     forMenuItem: (NSMenuItem *)o_parent
 442                     target:(vlc_object_t *)p_object
 443                     var:(const char *)psz_variable
 444                     selector:(SEL)pf_callback
 445 {
 446     vlc_value_t val, val_list, text_list;
 447     int i_type, i, i_nb_items;
 448
 449     /* remove previous items */
 450     i_nb_items = [o_menu numberOfItems];
 451     for( i = 0; i < i_nb_items; i++ )
 452     {
 453         [o_menu removeItemAtIndex: 0];
 454     }
 455
 456     /* Check the type of the object variable */
 457     i_type = var_Type( p_object, psz_variable );
 458
 459     /* Make sure we want to display the variable */
 460     if( i_type & VLC_VAR_HASCHOICE )
 461     {
 462         var_Change( p_object, psz_variable, VLC_VAR_CHOICESCOUNT, &val, NULL );
 463         if( val.i_int == 0 ) return;
 464         if( (i_type & VLC_VAR_TYPE) != VLC_VAR_VARIABLE && val.i_int == 1 )
 465             return;
 466     }
 467     else
 468     {
 469         return;
 470     }
 471
 472     switch( i_type & VLC_VAR_TYPE )
 473     {
 474     case VLC_VAR_VOID:
 475     case VLC_VAR_BOOL:
 476     case VLC_VAR_VARIABLE:
 477     case VLC_VAR_STRING:
 478     case VLC_VAR_INTEGER:
 479         break;
 480     default:
 481         /* Variable doesn't exist or isn't handled */
 482         return;
 483     }
 484
 485     if( var_Get( p_object, psz_variable, &val ) < 0 )
 486     {
 487         return;
 488     }
 489
 490     if( var_Change( p_object, psz_variable, VLC_VAR_GETLIST,
 491                     &val_list, &text_list ) < 0 )
 492     {
 493         if( (i_type & VLC_VAR_TYPE) == VLC_VAR_STRING ) free( val.psz_string );
 494         return;
 495     }
 496
 497     /* make (un)sensitive */
 498     [o_parent setEnabled: ( val_list.p_list->i_count > 1 )];
 499
 500     for( i = 0; i < val_list.p_list->i_count; i++ )
 501     {
 502         vlc_value_t another_val;
 503         NSMenuItem * o_lmi;
 504         NSString *o_title = @"";
 505         VLCMenuExt *o_data;
 506
 507         switch( i_type & VLC_VAR_TYPE )
 508         {
 509         case VLC_VAR_VARIABLE:
 510
 511             /* This is causing crashes for the moment.
 512             o_title = [NSApp localizedString: text_list.p_list->p_values[i].psz_string ?
 513                 text_list.p_list->p_values[i].psz_string : val_list.p_list->p_values[i].psz_string ];
 514
 515             o_data = [[VLCMenuExt alloc] initWithVar: strdup(psz_variable) Object: p_object->i_object_id
 516                 Value: val ofType: i_type];
 517             [o_lmi setRepresentedObject: [NSValue valueWithPointer:[o_data retain]]];
 518
 519             // Create a submenu
 520             NSMenu *o_menu = [o_lmi submenu];
 521
 522             [self setupVarMenu: o_menu forMenuItem: o_lmi target:p_object
 523                             var:psz_variable selector:pf_callback];
 524 */
 525             return;
 526
 527         case VLC_VAR_STRING:
 528             another_val.psz_string =
 529                 strdup(val_list.p_list->p_values[i].psz_string);
 530
 531             o_title = [NSApp localizedString: text_list.p_list->p_values[i].psz_string ?
 532                 text_list.p_list->p_values[i].psz_string : val_list.p_list->p_values[i].psz_string ];
 533
 534             o_lmi = [o_menu addItemWithTitle: o_title action: pf_callback keyEquivalent: @""];
 535             o_data = [[VLCMenuExt alloc] initWithVar: strdup(psz_variable) Object: p_object->i_object_id
 536                     Value: another_val ofType: i_type];
 537             [o_lmi setRepresentedObject: [NSValue valueWithPointer:[o_data retain]]];
 538             [o_lmi setTarget: self];
 539
 540             if( !strcmp( val.psz_string, val_list.p_list->p_values[i].psz_string ) )
 541                 [o_lmi setState: TRUE ];
 542
 543             break;
 544
 545         case VLC_VAR_INTEGER:
 546
 547              o_title = text_list.p_list->p_values[i].psz_string ?
 548                                  [NSApp localizedString: strdup( text_list.p_list->p_values[i].psz_string )] :
 549                                  [NSString stringWithFormat: @"%d",
 550                                  val_list.p_list->p_values[i].i_int];
 551
 552             o_lmi = [[o_menu addItemWithTitle: o_title action: pf_callback keyEquivalent: @""] retain ];
 553             o_data = [[VLCMenuExt alloc] initWithVar: strdup(psz_variable) Object: p_object->i_object_id
 554                     Value: val_list.p_list->p_values[i] ofType: i_type];
 555             [o_lmi setRepresentedObject: [NSValue valueWithPointer:[ o_data retain]]];
 556             [o_lmi setTarget: self];
 557
 558             if( val_list.p_list->p_values[i].i_int == val.i_int )
 559                 [o_lmi setState: TRUE ];
 560             break;
 561
 562         default:
 563           break;
 564         }
 565     }
 566
 567     /* clean up everything */
 568     if( (i_type & VLC_VAR_TYPE) == VLC_VAR_STRING ) free( val.psz_string );
 569     var_Change( p_object, psz_variable, VLC_VAR_FREELIST, &val_list, &text_list );
 570 }
 571
 572 - (IBAction)toggleVar:(id)sender
 573 {
 574     NSMenuItem *o_mi = (NSMenuItem *)sender;
 575     VLCMenuExt *o_data = [[o_mi representedObject] pointerValue];
 576     [NSThread detachNewThreadSelector: @selector(toggleVarThread:)
 577         toTarget: self withObject: o_data];
 578
 579     return;
 580 }
 581
 582 - (int)toggleVarThread: (id)_o_data
 583 {
 584     vlc_object_t *p_object;
 585     NSAutoreleasePool * o_pool = [[NSAutoreleasePool alloc] init];
 586     VLCMenuExt *o_data = (VLCMenuExt *)_o_data;
 587
 588     vlc_thread_set_priority( [NSApp getIntf] , VLC_THREAD_PRIORITY_LOW );
 589
 590     p_object = (vlc_object_t *)vlc_object_get( [NSApp getIntf],
 591                                     [o_data objectID] );
 592
 593     if( p_object != NULL )
 594     {
 595         var_Set( p_object, strdup([o_data name]), [o_data value] );
 596         vlc_object_release( p_object );
 597         [o_pool release];
 598         return VLC_TRUE;
 599     }
 600     [o_pool release];
 601     return VLC_EGENERIC;
 602 }
 603
 604 @end
 605
 606 @implementation VLCControls (NSMenuValidation)
 607
 608 - (BOOL)validateMenuItem:(NSMenuItem *)o_mi
 609 {
 610     BOOL bEnabled = TRUE;
 611     vlc_value_t val;
 612     intf_thread_t * p_intf = [NSApp getIntf];
 613     playlist_t * p_playlist = vlc_object_find( p_intf, VLC_OBJECT_PLAYLIST,
 614                                                        FIND_ANYWHERE );
 615
 616     if( p_playlist != NULL )
 617     {
 618         vlc_mutex_lock( &p_playlist->object_lock );
 619     }
 620
 621 #define p_input p_playlist->p_input
 622
 623     if( [[o_mi title] isEqualToString: _NS("Faster")] ||
 624         [[o_mi title] isEqualToString: _NS("Slower")] )
 625     {
 626         if( p_playlist != NULL && p_input != NULL )
 627         {
 628             vlc_mutex_lock( &p_input->stream.stream_lock );
 629             bEnabled = p_input->stream.b_pace_control;
 630             vlc_mutex_unlock( &p_input->stream.stream_lock );
 631         }
 632         else
 633         {
 634             bEnabled = FALSE;
 635         }
 636     }
 637     else if( [[o_mi title] isEqualToString: _NS("Stop")] )
 638     {
 639         if( p_playlist == NULL || p_input == NULL )
 640         {
 641             bEnabled = FALSE;
 642         }
 643     }
 644     else if( [[o_mi title] isEqualToString: _NS("Previous")] ||
 645              [[o_mi title] isEqualToString: _NS("Next")] )
 646     {
 647         if( p_playlist == NULL )
 648         {
 649             bEnabled = FALSE;
 650         }
 651         else
 652         {
 653             bEnabled = p_playlist->i_size > 1;
 654
 655             if( p_input != NULL )
 656             {
 657                 vlc_mutex_lock( &p_input->stream.stream_lock );
 658                 bEnabled |= p_input->stream.i_area_nb > 1;
 659                 vlc_mutex_unlock( &p_input->stream.stream_lock );
 660             }
 661         }
 662     }
 663     else if( [[o_mi title] isEqualToString: _NS("Random")] )
 664     {
 665         int i_state;
 666         var_Get( p_playlist, "random", &val );
 667         i_state = val.b_bool ? NSOnState : NSOffState;
 668         [o_mi setState: i_state];
 669     }
 670     else if( [[o_mi title] isEqualToString: _NS("Repeat One")] )
 671     {
 672         int i_state;
 673         var_Get( p_playlist, "repeat", &val );
 674         i_state = val.b_bool ? NSOnState : NSOffState;
 675         [o_mi setState: i_state];
 676     }
 677     else if( [[o_mi title] isEqualToString: _NS("Repeat All")] )
 678     {
 679         int i_state;
 680         var_Get( p_playlist, "loop", &val );
 681         i_state = val.b_bool ? NSOnState : NSOffState;
 682         [o_mi setState: i_state];
 683     }
 684     else if( [[o_mi title] isEqualToString: _NS("Step Forward")] ||
 685              [[o_mi title] isEqualToString: _NS("Step Backward")] )
 686     {
 687         if( p_playlist != NULL && p_input != NULL )
 688         {
 689             vlc_mutex_lock( &p_input->stream.stream_lock );
 690             bEnabled = p_input->stream.b_seekable;
 691             vlc_mutex_unlock( &p_input->stream.stream_lock );
 692         }
 693         else
 694         {
 695             bEnabled = FALSE;
 696         }
 697     }
 698     else if( [[o_mi title] isEqualToString: _NS("Mute")] )
 699     {
 700         [o_mi setState: p_intf->p_sys->b_mute ? NSOnState : NSOffState];
 701     }
 702     else if( [[o_mi title] isEqualToString: _NS("Fullscreen")] ||
 703                 [[o_mi title] isEqualToString: _NS("Half Size")] ||
 704                 [[o_mi title] isEqualToString: _NS("Normal Size")] ||
 705                 [[o_mi title] isEqualToString: _NS("Double Size")] ||
 706                 [[o_mi title] isEqualToString: _NS("Fit to Screen")] ||
 707                 [[o_mi title] isEqualToString: _NS("Float on Top")] )
 708     {
 709         id o_window;
 710         NSArray *o_windows = [NSApp orderedWindows];
 711         NSEnumerator *o_enumerator = [o_windows objectEnumerator];
 712         bEnabled = FALSE;
 713
 714         if ( [[o_mi title] isEqualToString: _NS("Float on Top")] )
 715         {
 716             int i_state = config_GetInt( p_playlist, "video-on-top" ) ?
 717                       NSOnState : NSOffState;
 718             [o_mi setState: i_state];
 719         }
 720
 721         vout_thread_t   *p_vout = vlc_object_find( p_intf, VLC_OBJECT_VOUT,
 722                                               FIND_ANYWHERE );
 723         if( p_vout != NULL )
 724         {
 725             while ((o_window = [o_enumerator nextObject]))
 726             {
 727                 if( [[o_window className] isEqualToString: @"VLCWindow"] )
 728                 {
 729                     bEnabled = TRUE;
 730                     break;
 731                 }
 732             }
 733             vlc_object_release( (vlc_object_t *)p_vout );
 734         }
 735     }
 736
 737     if( p_playlist != NULL )
 738     {
 739         vlc_mutex_unlock( &p_playlist->object_lock );
 740         vlc_object_release( p_playlist );
 741     }
 742
 743     return( bEnabled );
 744 }
 745
 746 @end
 747
 748 /*****************************************************************************
 749  * VLCMenuExt implementation
 750  *****************************************************************************
 751  * Object connected to a playlistitem which remembers the data belonging to
 752  * the variable of the autogenerated menu
 753  *****************************************************************************/
 754 @implementation VLCMenuExt
 755
 756 - (id)initWithVar: (const char *)_psz_name Object: (int)i_id
 757         Value: (vlc_value_t)val ofType: (int)_i_type
 758 {
 759     self = [super init];
 760
 761     if( self != nil )
 762     {
 763         psz_name = strdup( _psz_name );
 764         i_object_id = i_id;
 765         value = val;
 766         i_type = _i_type;
 767     }
 768
 769     return( self );
 770 }
 771
 772 - (void)dealloc
 773 {
 774     free( psz_name );
 775 }
 776
 777 - (char *)name
 778 {
 779     return psz_name;
 780 }
 781
 782 - (int)objectID
 783 {
 784     return i_object_id;
 785 }
 786
 787 - (vlc_value_t)value
 788 {
 789     return value;
 790 }
 791
 792 - (int)type
 793 {
 794     return i_type;
 795 }
 796
 797 @end