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  * $Id$
   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     if (!val.b_bool)
 198     {
 199         var_Set( p_playlist, "loop", val );
 200     }
 201     val.b_bool = !val.b_bool;
 202     var_Set( p_playlist, "repeat", val );
 203     if( val.b_bool )
 204     {
 205         vout_OSDMessage( p_intf, _( "Repeat All" ) );
 206     }
 207     else
 208     {
 209         vout_OSDMessage( p_intf, _( "Repeat Off" ) );
 210     }
 211
 212     p_intf->p_sys->b_playlist_update = VLC_TRUE;
 213     p_intf->p_sys->b_intf_update = VLC_TRUE;
 214     vlc_object_release( p_playlist );
 215 }
 216
 217 - (IBAction)loop:(id)sender
 218 {
 219     intf_thread_t * p_intf = [NSApp getIntf];
 220     vlc_value_t val;
 221     playlist_t * p_playlist = vlc_object_find( p_intf, VLC_OBJECT_PLAYLIST,
 222                                                        FIND_ANYWHERE );
 223     if( p_playlist == NULL )
 224     {
 225         return;
 226     }
 227
 228     var_Get( p_playlist, "loop", &val );
 229     if (!val.b_bool)
 230     {
 231         var_Set( p_playlist, "repeat", val );
 232     }
 233     val.b_bool = !val.b_bool;
 234     var_Set( p_playlist, "loop", val );
 235     if( val.b_bool )
 236     {
 237         vout_OSDMessage( p_intf, _( "Repeat One" ) );
 238     }
 239     else
 240     {
 241         vout_OSDMessage( p_intf, _( "Repeat Off" ) );
 242     }
 243
 244     p_intf->p_sys->b_playlist_update = VLC_TRUE;
 245     p_intf->p_sys->b_intf_update = VLC_TRUE;
 246     vlc_object_release( p_playlist );
 247 }
 248
 249 - (IBAction)forward:(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)backward:(id)sender
 264 {
 265     intf_thread_t * p_intf = [NSApp getIntf];
 266     input_thread_t * p_input = vlc_object_find( p_intf, VLC_OBJECT_INPUT,
 267                                                        FIND_ANYWHERE );
 268     if( p_input != NULL )
 269     {
 270         vlc_value_t time;
 271         time.i_time = -10 * 1000000;
 272         var_Set( p_input, "time-offset", time );
 273         vlc_object_release( p_input );
 274     }
 275 }
 276
 277 - (IBAction)volumeUp:(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_VolumeUp( p_intf, 1, NULL );
 287
 288     [self updateVolumeSlider];
 289 }
 290
 291 - (IBAction)volumeDown:(id)sender
 292 {
 293     intf_thread_t * p_intf = [NSApp getIntf];
 294
 295     if( p_intf->p_sys->b_mute )
 296     {
 297         [self mute: nil];
 298     }
 299
 300     aout_VolumeDown( p_intf, 1, NULL );
 301
 302     [self updateVolumeSlider];
 303 }
 304
 305 - (IBAction)mute:(id)sender
 306 {
 307     intf_thread_t * p_intf = [NSApp getIntf];
 308     audio_volume_t i_volume;
 309
 310     aout_VolumeMute( p_intf, &i_volume );
 311     p_intf->p_sys->b_mute = ( i_volume == 0 );
 312
 313     [self updateVolumeSlider];
 314 }
 315
 316 - (IBAction)volumeSliderUpdated:(id)sender
 317 {
 318     intf_thread_t * p_intf = [NSApp getIntf];
 319     audio_volume_t i_volume = (audio_volume_t)[sender intValue];
 320
 321     aout_VolumeSet( p_intf, i_volume * AOUT_VOLUME_STEP );
 322 }
 323
 324 - (void)updateVolumeSlider
 325 {
 326     intf_thread_t * p_intf = [NSApp getIntf];
 327     audio_volume_t i_volume;
 328
 329     aout_VolumeGet( p_intf, &i_volume );
 330
 331     [o_volumeslider setFloatValue: (float)(i_volume / AOUT_VOLUME_STEP)];
 332
 333     vout_OSDMessage( p_intf, "Vol %d%%", i_volume*100/AOUT_VOLUME_MAX );
 334 }
 335
 336 - (IBAction)windowAction:(id)sender
 337 {
 338     id o_window = [NSApp keyWindow];
 339     NSString *o_title = [sender title];
 340     NSArray *o_windows = [NSApp orderedWindows];
 341     NSEnumerator *o_enumerator = [o_windows objectEnumerator];
 342     vout_thread_t   *p_vout = vlc_object_find( [NSApp getIntf], VLC_OBJECT_VOUT,
 343                                               FIND_ANYWHERE );
 344
 345     if( p_vout != NULL )
 346     {
 347         while ((o_window = [o_enumerator nextObject]))
 348         {
 349             if( [[o_window className] isEqualToString: @"VLCWindow"] )
 350             {
 351                 if( [o_title isEqualToString: _NS("Half Size") ] )
 352                     [o_window scaleWindowWithFactor: 0.5];
 353                 else if( [o_title isEqualToString: _NS("Normal Size") ] )
 354                     [o_window scaleWindowWithFactor: 1.0];
 355                 else if( [o_title isEqualToString: _NS("Double Size") ] )
 356                     [o_window scaleWindowWithFactor: 2.0];
 357                 else if( [o_title isEqualToString: _NS("Float on Top") ] )
 358                     [o_window toggleFloatOnTop];
 359                 else if( [o_title isEqualToString: _NS("Fit to Screen") ] )
 360                 {
 361                     if( ![o_window isZoomed] )
 362                         [o_window performZoom:self];
 363                 }
 364                 else
 365                 {
 366                     [o_window toggleFullscreen];
 367                 }
 368                 break;
 369             }
 370         }
 371         vlc_object_release( (vlc_object_t *)p_vout );
 372     }
 373 }
 374
 375 - (void)setupVarMenuItem:(NSMenuItem *)o_mi
 376                     target:(vlc_object_t *)p_object
 377                     var:(const char *)psz_variable
 378                     selector:(SEL)pf_callback
 379 {
 380     vlc_value_t val, text;
 381     int i_type = var_Type( p_object, psz_variable );
 382
 383     switch( i_type & VLC_VAR_TYPE )
 384     {
 385     case VLC_VAR_VOID:
 386     case VLC_VAR_BOOL:
 387     case VLC_VAR_VARIABLE:
 388     case VLC_VAR_STRING:
 389     case VLC_VAR_INTEGER:
 390         break;
 391     default:
 392         /* Variable doesn't exist or isn't handled */
 393         return;
 394     }
 395
 396     /* Make sure we want to display the variable */
 397     if( i_type & VLC_VAR_HASCHOICE )
 398     {
 399         var_Change( p_object, psz_variable, VLC_VAR_CHOICESCOUNT, &val, NULL );
 400         if( val.i_int == 0 ) return;
 401         if( (i_type & VLC_VAR_TYPE) != VLC_VAR_VARIABLE && val.i_int == 1 )
 402             return;
 403     }
 404
 405     /* Get the descriptive name of the variable */
 406     var_Change( p_object, psz_variable, VLC_VAR_GETTEXT, &text, NULL );
 407     [o_mi setTitle: [NSApp localizedString: text.psz_string ?
 408                                         text.psz_string : strdup( psz_variable ) ]];
 409
 410     var_Get( p_object, psz_variable, &val );
 411     if( i_type & VLC_VAR_HASCHOICE )
 412     {
 413         NSMenu *o_menu = [o_mi submenu];
 414
 415         [self setupVarMenu: o_menu forMenuItem: o_mi target:p_object
 416                         var:psz_variable selector:pf_callback];
 417
 418         if( text.psz_string ) free( text.psz_string );
 419         return;
 420     }
 421
 422     VLCMenuExt *o_data;
 423     switch( i_type & VLC_VAR_TYPE )
 424     {
 425     case VLC_VAR_VOID:
 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         break;
 430
 431     case VLC_VAR_BOOL:
 432         o_data = [[VLCMenuExt alloc] initWithVar: psz_variable Object: p_object->i_object_id
 433                 Value: val ofType: i_type];
 434         [o_mi setRepresentedObject: [NSValue valueWithPointer:[o_data retain]]];
 435         [o_mi setState: val.b_bool ? TRUE : FALSE ];
 436         break;
 437
 438     default:
 439         if( text.psz_string ) free( text.psz_string );
 440         return;
 441     }
 442
 443     if( (i_type & VLC_VAR_TYPE) == VLC_VAR_STRING ) free( val.psz_string );
 444     if( text.psz_string ) free( text.psz_string );
 445 }
 446
 447
 448 - (void)setupVarMenu:(NSMenu *)o_menu
 449                     forMenuItem: (NSMenuItem *)o_parent
 450                     target:(vlc_object_t *)p_object
 451                     var:(const char *)psz_variable
 452                     selector:(SEL)pf_callback
 453 {
 454     vlc_value_t val, val_list, text_list;
 455     int i_type, i, i_nb_items;
 456
 457     /* remove previous items */
 458     i_nb_items = [o_menu numberOfItems];
 459     for( i = 0; i < i_nb_items; i++ )
 460     {
 461         [o_menu removeItemAtIndex: 0];
 462     }
 463
 464     /* Check the type of the object variable */
 465     i_type = var_Type( p_object, psz_variable );
 466
 467     /* Make sure we want to display the variable */
 468     if( i_type & VLC_VAR_HASCHOICE )
 469     {
 470         var_Change( p_object, psz_variable, VLC_VAR_CHOICESCOUNT, &val, NULL );
 471         if( val.i_int == 0 ) return;
 472         if( (i_type & VLC_VAR_TYPE) != VLC_VAR_VARIABLE && val.i_int == 1 )
 473             return;
 474     }
 475     else
 476     {
 477         return;
 478     }
 479
 480     switch( i_type & VLC_VAR_TYPE )
 481     {
 482     case VLC_VAR_VOID:
 483     case VLC_VAR_BOOL:
 484     case VLC_VAR_VARIABLE:
 485     case VLC_VAR_STRING:
 486     case VLC_VAR_INTEGER:
 487         break;
 488     default:
 489         /* Variable doesn't exist or isn't handled */
 490         return;
 491     }
 492
 493     if( var_Get( p_object, psz_variable, &val ) < 0 )
 494     {
 495         return;
 496     }
 497
 498     if( var_Change( p_object, psz_variable, VLC_VAR_GETLIST,
 499                     &val_list, &text_list ) < 0 )
 500     {
 501         if( (i_type & VLC_VAR_TYPE) == VLC_VAR_STRING ) free( val.psz_string );
 502         return;
 503     }
 504
 505     /* make (un)sensitive */
 506     [o_parent setEnabled: ( val_list.p_list->i_count > 1 )];
 507
 508     for( i = 0; i < val_list.p_list->i_count; i++ )
 509     {
 510         vlc_value_t another_val;
 511         NSMenuItem * o_lmi;
 512         NSString *o_title = @"";
 513         VLCMenuExt *o_data;
 514
 515         switch( i_type & VLC_VAR_TYPE )
 516         {
 517         case VLC_VAR_VARIABLE:
 518
 519             /* This is causing crashes for the moment.
 520             o_title = [NSApp localizedString: text_list.p_list->p_values[i].psz_string ?
 521                 text_list.p_list->p_values[i].psz_string : val_list.p_list->p_values[i].psz_string ];
 522
 523             o_data = [[VLCMenuExt alloc] initWithVar: strdup(psz_variable) Object: p_object->i_object_id
 524                 Value: val ofType: i_type];
 525             [o_lmi setRepresentedObject: [NSValue valueWithPointer:[o_data retain]]];
 526
 527             // Create a submenu
 528             NSMenu *o_menu = [o_lmi submenu];
 529
 530             [self setupVarMenu: o_menu forMenuItem: o_lmi target:p_object
 531                             var:psz_variable selector:pf_callback];
 532 */
 533             return;
 534
 535         case VLC_VAR_STRING:
 536             another_val.psz_string =
 537                 strdup(val_list.p_list->p_values[i].psz_string);
 538
 539             o_title = [NSApp localizedString: text_list.p_list->p_values[i].psz_string ?
 540                 text_list.p_list->p_values[i].psz_string : val_list.p_list->p_values[i].psz_string ];
 541
 542             o_lmi = [o_menu addItemWithTitle: o_title action: pf_callback keyEquivalent: @""];
 543             o_data = [[VLCMenuExt alloc] initWithVar: strdup(psz_variable) Object: p_object->i_object_id
 544                     Value: another_val ofType: i_type];
 545             [o_lmi setRepresentedObject: [NSValue valueWithPointer:[o_data retain]]];
 546             [o_lmi setTarget: self];
 547
 548             if( !strcmp( val.psz_string, val_list.p_list->p_values[i].psz_string ) )
 549                 [o_lmi setState: TRUE ];
 550
 551             break;
 552
 553         case VLC_VAR_INTEGER:
 554
 555              o_title = text_list.p_list->p_values[i].psz_string ?
 556                                  [NSApp localizedString: strdup( text_list.p_list->p_values[i].psz_string )] :
 557                                  [NSString stringWithFormat: @"%d",
 558                                  val_list.p_list->p_values[i].i_int];
 559
 560             o_lmi = [[o_menu addItemWithTitle: o_title action: pf_callback keyEquivalent: @""] retain ];
 561             o_data = [[VLCMenuExt alloc] initWithVar: strdup(psz_variable) Object: p_object->i_object_id
 562                     Value: val_list.p_list->p_values[i] ofType: i_type];
 563             [o_lmi setRepresentedObject: [NSValue valueWithPointer:[ o_data retain]]];
 564             [o_lmi setTarget: self];
 565
 566             if( val_list.p_list->p_values[i].i_int == val.i_int )
 567                 [o_lmi setState: TRUE ];
 568             break;
 569
 570         default:
 571           break;
 572         }
 573     }
 574
 575     /* clean up everything */
 576     if( (i_type & VLC_VAR_TYPE) == VLC_VAR_STRING ) free( val.psz_string );
 577     var_Change( p_object, psz_variable, VLC_VAR_FREELIST, &val_list, &text_list );
 578 }
 579
 580 - (IBAction)toggleVar:(id)sender
 581 {
 582     NSMenuItem *o_mi = (NSMenuItem *)sender;
 583     VLCMenuExt *o_data = [[o_mi representedObject] pointerValue];
 584     [NSThread detachNewThreadSelector: @selector(toggleVarThread:)
 585         toTarget: self withObject: o_data];
 586
 587     return;
 588 }
 589
 590 - (int)toggleVarThread: (id)_o_data
 591 {
 592     vlc_object_t *p_object;
 593     NSAutoreleasePool * o_pool = [[NSAutoreleasePool alloc] init];
 594     VLCMenuExt *o_data = (VLCMenuExt *)_o_data;
 595
 596     vlc_thread_set_priority( [NSApp getIntf] , VLC_THREAD_PRIORITY_LOW );
 597
 598     p_object = (vlc_object_t *)vlc_object_get( [NSApp getIntf],
 599                                     [o_data objectID] );
 600
 601     if( p_object != NULL )
 602     {
 603         var_Set( p_object, strdup([o_data name]), [o_data value] );
 604         vlc_object_release( p_object );
 605         [o_pool release];
 606         return VLC_TRUE;
 607     }
 608     [o_pool release];
 609     return VLC_EGENERIC;
 610 }
 611
 612 @end
 613
 614 @implementation VLCControls (NSMenuValidation)
 615
 616 - (BOOL)validateMenuItem:(NSMenuItem *)o_mi
 617 {
 618     BOOL bEnabled = TRUE;
 619     vlc_value_t val;
 620     intf_thread_t * p_intf = [NSApp getIntf];
 621     playlist_t * p_playlist = vlc_object_find( p_intf, VLC_OBJECT_PLAYLIST,
 622                                                        FIND_ANYWHERE );
 623
 624     if( p_playlist != NULL )
 625     {
 626         vlc_mutex_lock( &p_playlist->object_lock );
 627     }
 628
 629 #define p_input p_playlist->p_input
 630
 631     if( [[o_mi title] isEqualToString: _NS("Faster")] ||
 632         [[o_mi title] isEqualToString: _NS("Slower")] )
 633     {
 634         if( p_playlist != NULL && p_input != NULL )
 635         {
 636             vlc_mutex_lock( &p_input->stream.stream_lock );
 637             bEnabled = p_input->stream.b_pace_control;
 638             vlc_mutex_unlock( &p_input->stream.stream_lock );
 639         }
 640         else
 641         {
 642             bEnabled = FALSE;
 643         }
 644     }
 645     else if( [[o_mi title] isEqualToString: _NS("Stop")] )
 646     {
 647         if( p_playlist == NULL || p_input == NULL )
 648         {
 649             bEnabled = FALSE;
 650         }
 651     }
 652     else if( [[o_mi title] isEqualToString: _NS("Previous")] ||
 653              [[o_mi title] isEqualToString: _NS("Next")] )
 654     {
 655         if( p_playlist == NULL )
 656         {
 657             bEnabled = FALSE;
 658         }
 659         else
 660         {
 661             bEnabled = p_playlist->i_size > 1;
 662
 663             if( p_input != NULL )
 664             {
 665                 vlc_mutex_lock( &p_input->stream.stream_lock );
 666                 bEnabled |= p_input->stream.i_area_nb > 1;
 667                 vlc_mutex_unlock( &p_input->stream.stream_lock );
 668             }
 669         }
 670     }
 671     else if( [[o_mi title] isEqualToString: _NS("Random")] )
 672     {
 673         int i_state;
 674         var_Get( p_playlist, "random", &val );
 675         i_state = val.b_bool ? NSOnState : NSOffState;
 676         [o_mi setState: i_state];
 677     }
 678     else if( [[o_mi title] isEqualToString: _NS("Repeat One")] )
 679     {
 680         int i_state;
 681         var_Get( p_playlist, "repeat", &val );
 682         i_state = val.b_bool ? NSOnState : NSOffState;
 683         [o_mi setState: i_state];
 684     }
 685     else if( [[o_mi title] isEqualToString: _NS("Repeat All")] )
 686     {
 687         int i_state;
 688         var_Get( p_playlist, "loop", &val );
 689         i_state = val.b_bool ? NSOnState : NSOffState;
 690         [o_mi setState: i_state];
 691     }
 692     else if( [[o_mi title] isEqualToString: _NS("Step Forward")] ||
 693              [[o_mi title] isEqualToString: _NS("Step Backward")] )
 694     {
 695         if( p_playlist != NULL && p_input != NULL )
 696         {
 697             vlc_mutex_lock( &p_input->stream.stream_lock );
 698             bEnabled = p_input->stream.b_seekable;
 699             vlc_mutex_unlock( &p_input->stream.stream_lock );
 700         }
 701         else
 702         {
 703             bEnabled = FALSE;
 704         }
 705     }
 706     else if( [[o_mi title] isEqualToString: _NS("Mute")] )
 707     {
 708         [o_mi setState: p_intf->p_sys->b_mute ? NSOnState : NSOffState];
 709     }
 710     else if( [[o_mi title] isEqualToString: _NS("Fullscreen")] ||
 711                 [[o_mi title] isEqualToString: _NS("Half Size")] ||
 712                 [[o_mi title] isEqualToString: _NS("Normal Size")] ||
 713                 [[o_mi title] isEqualToString: _NS("Double Size")] ||
 714                 [[o_mi title] isEqualToString: _NS("Fit to Screen")] ||
 715                 [[o_mi title] isEqualToString: _NS("Float on Top")] )
 716     {
 717         id o_window;
 718         NSArray *o_windows = [NSApp orderedWindows];
 719         NSEnumerator *o_enumerator = [o_windows objectEnumerator];
 720         bEnabled = FALSE;
 721
 722         if ( [[o_mi title] isEqualToString: _NS("Float on Top")] )
 723         {
 724             int i_state = config_GetInt( p_playlist, "video-on-top" ) ?
 725                       NSOnState : NSOffState;
 726             [o_mi setState: i_state];
 727         }
 728
 729         vout_thread_t   *p_vout = vlc_object_find( p_intf, VLC_OBJECT_VOUT,
 730                                               FIND_ANYWHERE );
 731         if( p_vout != NULL )
 732         {
 733             while ((o_window = [o_enumerator nextObject]))
 734             {
 735                 if( [[o_window className] isEqualToString: @"VLCWindow"] )
 736                 {
 737                     bEnabled = TRUE;
 738                     break;
 739                 }
 740             }
 741             vlc_object_release( (vlc_object_t *)p_vout );
 742         }
 743     }
 744
 745     if( p_playlist != NULL )
 746     {
 747         vlc_mutex_unlock( &p_playlist->object_lock );
 748         vlc_object_release( p_playlist );
 749     }
 750
 751     return( bEnabled );
 752 }
 753
 754 @end
 755
 756 /*****************************************************************************
 757  * VLCMenuExt implementation
 758  *****************************************************************************
 759  * Object connected to a playlistitem which remembers the data belonging to
 760  * the variable of the autogenerated menu
 761  *****************************************************************************/
 762 @implementation VLCMenuExt
 763
 764 - (id)initWithVar: (const char *)_psz_name Object: (int)i_id
 765         Value: (vlc_value_t)val ofType: (int)_i_type
 766 {
 767     self = [super init];
 768
 769     if( self != nil )
 770     {
 771         psz_name = strdup( _psz_name );
 772         i_object_id = i_id;
 773         value = val;
 774         i_type = _i_type;
 775     }
 776
 777     return( self );
 778 }
 779
 780 - (void)dealloc
 781 {
 782     free( psz_name );
 783 }
 784
 785 - (char *)name
 786 {
 787     return psz_name;
 788 }
 789
 790 - (int)objectID
 791 {
 792     return i_object_id;
 793 }
 794
 795 - (vlc_value_t)value
 796 {
 797     return value;
 798 }
 799
 800 - (int)type
 801 {
 802     return i_type;
 803 }
 804
 805 @end