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 1.48 2003/09/20 13:46:00 hartman Exp $
   6  *
   7  * Authors: Jon Lech Johansen <jon-vl@nanocrew.net>
   8  *          Christophe Massiot <massiot@via.ecp.fr>
   9  *          Derk-Jan Hartman <thedj@users.sourceforge.net>
  10  *
  11  * This program is free software; you can redistribute it and/or modify
  12  * it under the terms of the GNU General Public License as published by
  13  * the Free Software Foundation; either version 2 of the License, or
  14  * (at your option) any later version.
  15  *
  16  * This program is distributed in the hope that it will be useful,
  17  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  18  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  19  * GNU General Public License for more details.
  20  *
  21  * You should have received a copy of the GNU General Public License
  22  * along with this program; if not, write to the Free Software
  23  * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111, USA.
  24  *****************************************************************************/
  25
  26 /*****************************************************************************
  27  * Preamble
  28  *****************************************************************************/
  29 #include <stdlib.h>                                      /* malloc(), free() */
  30 #include <sys/param.h>                                    /* for MAXPATHLEN */
  31 #include <string.h>
  32
  33 #include "intf.h"
  34 #include "vout.h"
  35 #include "open.h"
  36 #include "controls.h"
  37
  38 /*****************************************************************************
  39  * VLCControls implementation
  40  *****************************************************************************/
  41 @implementation VLCControls
  42
  43 - (IBAction)play:(id)sender
  44 {
  45     intf_thread_t * p_intf = [NSApp getIntf];
  46
  47     playlist_t * p_playlist = vlc_object_find( p_intf, VLC_OBJECT_PLAYLIST,
  48                                                        FIND_ANYWHERE );
  49     if( p_playlist == NULL )
  50     {
  51         return;
  52     }
  53
  54     if( playlist_IsPlaying( p_playlist ) )
  55     {
  56         playlist_Pause( p_playlist );
  57         vlc_object_release( p_playlist );
  58     }
  59     else
  60     {
  61         if( !playlist_IsEmpty( p_playlist ) )
  62         {
  63             playlist_Play( p_playlist );
  64             vlc_object_release( p_playlist );
  65         }
  66         else
  67         {
  68             vlc_object_release( p_playlist );
  69             [o_open openFileGeneric: nil];
  70         }
  71     }
  72 }
  73
  74 - (IBAction)stop:(id)sender
  75 {
  76     intf_thread_t * p_intf = [NSApp getIntf];
  77     playlist_t * p_playlist = vlc_object_find( p_intf, VLC_OBJECT_PLAYLIST,
  78                                                        FIND_ANYWHERE );
  79     if( p_playlist != NULL )
  80     {
  81         playlist_Stop( p_playlist );
  82         vlc_object_release( p_playlist );
  83     }
  84 }
  85
  86 - (IBAction)faster:(id)sender
  87 {
  88     intf_thread_t * p_intf = [NSApp getIntf];
  89     input_thread_t * p_input = vlc_object_find( p_intf, VLC_OBJECT_INPUT,
  90                                                        FIND_ANYWHERE );
  91     if( p_input != NULL )
  92     {
  93         vlc_value_t val; val.b_bool = VLC_TRUE;
  94
  95         var_Set( p_input, "rate-faster", val );
  96         vlc_object_release( p_input );
  97     }
  98 }
  99
 100 - (IBAction)slower:(id)sender
 101 {
 102     intf_thread_t * p_intf = [NSApp getIntf];
 103     input_thread_t * p_input = vlc_object_find( p_intf, VLC_OBJECT_INPUT,
 104                                                        FIND_ANYWHERE );
 105     if( p_input != NULL )
 106     {
 107         vlc_value_t val; val.b_bool = VLC_TRUE;
 108
 109         var_Set( p_input, "rate-slower", val );
 110         vlc_object_release( p_input );
 111     }
 112 }
 113
 114 - (IBAction)prev:(id)sender
 115 {
 116     vlc_value_t val;
 117     intf_thread_t * p_intf = [NSApp getIntf];
 118
 119     playlist_t * p_playlist = vlc_object_find( p_intf, VLC_OBJECT_PLAYLIST,
 120                                                        FIND_ANYWHERE );
 121     if( p_playlist == NULL )
 122     {
 123         return;
 124     }
 125
 126     vlc_mutex_lock( &p_playlist->object_lock );
 127
 128     if( p_playlist->p_input == NULL )
 129     {
 130         vlc_mutex_unlock( &p_playlist->object_lock );
 131         vlc_object_release( p_playlist );
 132         return;
 133     }
 134
 135     vlc_mutex_lock( &p_playlist->p_input->stream.stream_lock );
 136     val.b_bool = VLC_TRUE;
 137
 138 #define p_area p_playlist->p_input->stream.p_selected_area
 139     if( p_area->i_part > 0 && p_area->i_part_nb > 1)
 140     {
 141         vlc_mutex_unlock( &p_playlist->p_input->stream.stream_lock );
 142         var_Set( p_playlist->p_input, "prev-chapter", val );
 143         vlc_mutex_unlock( &p_playlist->object_lock );
 144     }
 145     else if( p_area->i_id > 1 )
 146     {
 147         vlc_mutex_unlock( &p_playlist->p_input->stream.stream_lock );
 148         var_Set( p_playlist->p_input, "prev-title", val );
 149         vlc_mutex_unlock( &p_playlist->object_lock );
 150     }
 151     else
 152     {
 153         vlc_mutex_unlock( &p_playlist->p_input->stream.stream_lock );
 154         vlc_mutex_unlock( &p_playlist->object_lock );
 155         playlist_Prev( p_playlist );
 156     }
 157 #undef p_area
 158
 159     vlc_object_release( p_playlist );
 160 }
 161
 162 - (IBAction)next:(id)sender
 163 {
 164     vlc_value_t val;
 165     intf_thread_t * p_intf = [NSApp getIntf];
 166
 167     playlist_t * p_playlist = vlc_object_find( p_intf, VLC_OBJECT_PLAYLIST,
 168                                                        FIND_ANYWHERE );
 169     if( p_playlist == NULL )
 170     {
 171         return;
 172     }
 173
 174     vlc_mutex_lock( &p_playlist->object_lock );
 175
 176     if( p_playlist->p_input == NULL )
 177     {
 178         vlc_mutex_unlock( &p_playlist->object_lock );
 179         vlc_object_release( p_playlist );
 180         return;
 181     }
 182
 183     vlc_mutex_lock( &p_playlist->p_input->stream.stream_lock );
 184     val.b_bool = VLC_TRUE;
 185
 186 #define p_area p_playlist->p_input->stream.p_selected_area
 187     if( p_area->i_part < p_area->i_part_nb - 1 && p_area->i_part_nb > 1 )
 188     {
 189         vlc_mutex_unlock( &p_playlist->p_input->stream.stream_lock );
 190         var_Set( p_playlist->p_input, "next-chapter", val );
 191         vlc_mutex_unlock( &p_playlist->object_lock );
 192     }
 193     else if( p_area->i_id < p_playlist->p_input->stream.i_area_nb && p_playlist->p_input->stream.i_area_nb > 1 )
 194     {
 195         vlc_mutex_unlock( &p_playlist->p_input->stream.stream_lock );
 196         var_Set( p_playlist->p_input, "next-title", val );
 197         vlc_mutex_unlock( &p_playlist->object_lock );
 198     }
 199     else
 200     {
 201         vlc_mutex_unlock( &p_playlist->p_input->stream.stream_lock );
 202         vlc_mutex_unlock( &p_playlist->object_lock );
 203         playlist_Next( p_playlist );
 204     }
 205 #undef p_area
 206
 207     vlc_object_release( p_playlist );
 208 }
 209
 210 - (IBAction)loop:(id)sender
 211 {
 212     intf_thread_t * p_intf = [NSApp getIntf];
 213
 214     playlist_t * p_playlist = vlc_object_find( p_intf, VLC_OBJECT_PLAYLIST,
 215                                                        FIND_ANYWHERE );
 216     if( p_playlist == NULL )
 217     {
 218         return;
 219     }
 220
 221     config_PutInt( p_playlist, "loop",
 222                    !config_GetInt( p_playlist, "loop" ) );
 223
 224     vlc_object_release( p_playlist );
 225 }
 226
 227 - (IBAction)forward:(id)sender
 228 {
 229     intf_thread_t * p_intf = [NSApp getIntf];
 230     input_thread_t * p_input = vlc_object_find( p_intf, VLC_OBJECT_INPUT,
 231                                                        FIND_ANYWHERE );
 232     if( p_input != NULL )
 233     {
 234         vlc_value_t time;
 235         time.f_float = 5;
 236         var_Set( p_input, "time-offset", time );
 237         vlc_object_release( p_input );
 238     }
 239 }
 240
 241 - (IBAction)backward:(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.f_float = -5;
 250         var_Set( p_input, "time-offset", time );
 251         vlc_object_release( p_input );
 252     }
 253 }
 254
 255 - (IBAction)volumeUp:(id)sender
 256 {
 257     intf_thread_t * p_intf = [NSApp getIntf];
 258
 259     if( p_intf->p_sys->b_mute )
 260     {
 261         [self mute: nil];
 262     }
 263
 264     aout_VolumeUp( p_intf, 1, NULL );
 265
 266     [self updateVolumeSlider];
 267 }
 268
 269 - (IBAction)volumeDown:(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_VolumeDown( p_intf, 1, NULL );
 279
 280     [self updateVolumeSlider];
 281 }
 282
 283 - (IBAction)mute:(id)sender
 284 {
 285     intf_thread_t * p_intf = [NSApp getIntf];
 286     audio_volume_t i_volume;
 287
 288     aout_VolumeMute( p_intf, &i_volume );
 289     p_intf->p_sys->b_mute = ( i_volume == 0 );
 290
 291     [self updateVolumeSlider];
 292 }
 293
 294 - (IBAction)volumeSliderUpdated:(id)sender
 295 {
 296     intf_thread_t * p_intf = [NSApp getIntf];
 297     audio_volume_t i_volume = (audio_volume_t)[sender intValue];
 298
 299     aout_VolumeSet( p_intf, i_volume * AOUT_VOLUME_STEP );
 300 }
 301
 302 - (void)updateVolumeSlider
 303 {
 304     intf_thread_t * p_intf = [NSApp getIntf];
 305     audio_volume_t i_volume;
 306
 307     aout_VolumeGet( p_intf, &i_volume );
 308
 309     [o_volumeslider setFloatValue: (float)(i_volume / AOUT_VOLUME_STEP)];
 310 }
 311
 312 - (IBAction)windowAction:(id)sender
 313 {
 314     id o_window = [NSApp keyWindow];
 315     NSString *o_title = [sender title];
 316     NSArray *o_windows = [NSApp windows];
 317     NSEnumerator *o_enumerator = [o_windows objectEnumerator];
 318     vout_thread_t   *p_vout = vlc_object_find( [NSApp getIntf], VLC_OBJECT_VOUT,
 319                                               FIND_ANYWHERE );
 320
 321     if( p_vout != NULL )
 322     {
 323         while ((o_window = [o_enumerator nextObject]))
 324         {
 325             if( [[o_window className] isEqualToString: @"VLCWindow"] )
 326             {
 327                 if( [o_title isEqualToString: _NS("Fullscreen") ] )
 328                     [o_window toggleFullscreen];
 329                 else if( [o_title isEqualToString: _NS("Half Size") ] )
 330                     [o_window scaleWindowWithFactor: 0.5];
 331                 else if( [o_title isEqualToString: _NS("Normal Size") ] )
 332                     [o_window scaleWindowWithFactor: 1.0];
 333                 else if( [o_title isEqualToString: _NS("Double Size") ] )
 334                     [o_window scaleWindowWithFactor: 2.0];
 335                 else if( [o_title isEqualToString: _NS("Float On Top") ] )
 336                     [o_window toggleFloatOnTop];
 337                 else if( [o_title isEqualToString: _NS("Fit To Screen") ] )
 338                 {
 339                     if( ![o_window isZoomed] )
 340                         [o_window performZoom:self];
 341                 }
 342             }
 343         }
 344         vlc_object_release( (vlc_object_t *)p_vout );
 345     }
 346 }
 347
 348 - (void)setupVarMenuItem:(NSMenuItem *)o_mi
 349                     target:(vlc_object_t *)p_object
 350                     var:(const char *)psz_variable
 351                     selector:(SEL)pf_callback
 352 {
 353     vlc_value_t val, text;
 354     int i_type = var_Type( p_object, psz_variable );
 355
 356     switch( i_type & VLC_VAR_TYPE )
 357     {
 358     case VLC_VAR_VOID:
 359     case VLC_VAR_BOOL:
 360     case VLC_VAR_VARIABLE:
 361     case VLC_VAR_STRING:
 362     case VLC_VAR_INTEGER:
 363         break;
 364     default:
 365         /* Variable doesn't exist or isn't handled */
 366         return;
 367     }
 368
 369     /* Make sure we want to display the variable */
 370     if( i_type & VLC_VAR_HASCHOICE )
 371     {
 372         var_Change( p_object, psz_variable, VLC_VAR_CHOICESCOUNT, &val, NULL );
 373         if( val.i_int == 0 ) return;
 374         if( (i_type & VLC_VAR_TYPE) != VLC_VAR_VARIABLE && val.i_int == 1 )
 375             return;
 376     }
 377
 378     /* Get the descriptive name of the variable */
 379     var_Change( p_object, psz_variable, VLC_VAR_GETTEXT, &text, NULL );
 380     [o_mi setTitle: [NSApp localizedString: text.psz_string ?
 381                                         text.psz_string : strdup( psz_variable ) ]];
 382
 383     var_Get( p_object, psz_variable, &val );
 384     if( i_type & VLC_VAR_HASCHOICE )
 385     {
 386         NSMenu *o_menu = [o_mi submenu];
 387
 388         [self setupVarMenu: o_menu forMenuItem: o_mi target:p_object
 389                         var:psz_variable selector:pf_callback];
 390
 391         if( text.psz_string ) free( text.psz_string );
 392         return;
 393     }
 394
 395     VLCMenuExt *o_data;
 396     switch( i_type & VLC_VAR_TYPE )
 397     {
 398     case VLC_VAR_VOID:
 399         o_data = [[VLCMenuExt alloc] initWithVar: psz_variable Object: p_object->i_object_id
 400                 Value: val ofType: i_type];
 401         [o_mi setRepresentedObject: [NSValue valueWithPointer:[o_data retain]]];
 402         break;
 403
 404     case VLC_VAR_BOOL:
 405         o_data = [[VLCMenuExt alloc] initWithVar: psz_variable Object: p_object->i_object_id
 406                 Value: val ofType: i_type];
 407         [o_mi setRepresentedObject: [NSValue valueWithPointer:[o_data retain]]];
 408         [o_mi setState: val.b_bool ? TRUE : FALSE ];
 409         break;
 410
 411     default:
 412         if( text.psz_string ) free( text.psz_string );
 413         return;
 414     }
 415
 416     if( (i_type & VLC_VAR_TYPE) == VLC_VAR_STRING ) free( val.psz_string );
 417     if( text.psz_string ) free( text.psz_string );
 418 }
 419
 420
 421 - (void)setupVarMenu:(NSMenu *)o_menu
 422                     forMenuItem: (NSMenuItem *)o_parent
 423                     target:(vlc_object_t *)p_object
 424                     var:(const char *)psz_variable
 425                     selector:(SEL)pf_callback
 426 {
 427     vlc_value_t val, val_list, text_list;
 428     int i_type, i, i_nb_items;
 429
 430     /* remove previous items */
 431     i_nb_items = [o_menu numberOfItems];
 432     for( i = 0; i < i_nb_items; i++ )
 433     {
 434         [o_menu removeItemAtIndex: 0];
 435     }
 436
 437     /* Check the type of the object variable */
 438     i_type = var_Type( p_object, psz_variable );
 439
 440     /* Make sure we want to display the variable */
 441     if( i_type & VLC_VAR_HASCHOICE )
 442     {
 443         var_Change( p_object, psz_variable, VLC_VAR_CHOICESCOUNT, &val, NULL );
 444         if( val.i_int == 0 ) return;
 445         if( (i_type & VLC_VAR_TYPE) != VLC_VAR_VARIABLE && val.i_int == 1 )
 446             return;
 447     }
 448     else
 449     {
 450         return;
 451     }
 452
 453     switch( i_type & VLC_VAR_TYPE )
 454     {
 455     case VLC_VAR_VOID:
 456     case VLC_VAR_BOOL:
 457     case VLC_VAR_VARIABLE:
 458     case VLC_VAR_STRING:
 459     case VLC_VAR_INTEGER:
 460         break;
 461     default:
 462         /* Variable doesn't exist or isn't handled */
 463         return;
 464     }
 465
 466     if( var_Get( p_object, psz_variable, &val ) < 0 )
 467     {
 468         return;
 469     }
 470
 471     if( var_Change( p_object, psz_variable, VLC_VAR_GETLIST,
 472                     &val_list, &text_list ) < 0 )
 473     {
 474         if( (i_type & VLC_VAR_TYPE) == VLC_VAR_STRING ) free( val.psz_string );
 475         return;
 476     }
 477
 478     /* make (un)sensitive */
 479     [o_parent setEnabled: ( val_list.p_list->i_count > 1 )];
 480
 481     for( i = 0; i < val_list.p_list->i_count; i++ )
 482     {
 483         vlc_value_t another_val;
 484         NSMenuItem * o_lmi;
 485         NSString *o_title = @"";
 486         VLCMenuExt *o_data;
 487
 488         switch( i_type & VLC_VAR_TYPE )
 489         {
 490         case VLC_VAR_VARIABLE:
 491
 492             /* This is causing crashes for the moment.
 493             o_title = [NSApp localizedString: text_list.p_list->p_values[i].psz_string ?
 494                 text_list.p_list->p_values[i].psz_string : val_list.p_list->p_values[i].psz_string ];
 495
 496             o_data = [[VLCMenuExt alloc] initWithVar: strdup(psz_variable) Object: p_object->i_object_id
 497                 Value: val ofType: i_type];
 498             [o_lmi setRepresentedObject: [NSValue valueWithPointer:[o_data retain]]];
 499
 500             // Create a submenu
 501             NSMenu *o_menu = [o_lmi submenu];
 502
 503             [self setupVarMenu: o_menu forMenuItem: o_lmi target:p_object
 504                             var:psz_variable selector:pf_callback];
 505 */
 506             return;
 507
 508         case VLC_VAR_STRING:
 509             another_val.psz_string =
 510                 strdup(val_list.p_list->p_values[i].psz_string);
 511
 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_lmi = [o_menu addItemWithTitle: o_title action: pf_callback keyEquivalent: @""];
 516             o_data = [[VLCMenuExt alloc] initWithVar: strdup(psz_variable) Object: p_object->i_object_id
 517                     Value: another_val ofType: i_type];
 518             [o_lmi setRepresentedObject: [NSValue valueWithPointer:[o_data retain]]];
 519             [o_lmi setTarget: self];
 520
 521             if( !strcmp( val.psz_string, val_list.p_list->p_values[i].psz_string ) )
 522                 [o_lmi setState: TRUE ];
 523
 524             break;
 525
 526         case VLC_VAR_INTEGER:
 527
 528              o_title = text_list.p_list->p_values[i].psz_string ?
 529                                  [NSApp localizedString: strdup( text_list.p_list->p_values[i].psz_string )] :
 530                                  [NSString stringWithFormat: @"%d",
 531                                  val_list.p_list->p_values[i].i_int];
 532
 533             o_lmi = [[o_menu addItemWithTitle: o_title action: pf_callback keyEquivalent: @""] retain ];
 534             o_data = [[VLCMenuExt alloc] initWithVar: strdup(psz_variable) Object: p_object->i_object_id
 535                     Value: val_list.p_list->p_values[i] ofType: i_type];
 536             [o_lmi setRepresentedObject: [NSValue valueWithPointer:[ o_data retain]]];
 537             [o_lmi setTarget: self];
 538
 539             if( val_list.p_list->p_values[i].i_int == val.i_int )
 540                 [o_lmi setState: TRUE ];
 541             break;
 542
 543         default:
 544           break;
 545         }
 546     }
 547
 548     /* clean up everything */
 549     if( (i_type & VLC_VAR_TYPE) == VLC_VAR_STRING ) free( val.psz_string );
 550     var_Change( p_object, psz_variable, VLC_VAR_FREELIST, &val_list, &text_list );
 551 }
 552
 553 - (IBAction)toggleVar:(id)sender
 554 {
 555     NSMenuItem *o_mi = (NSMenuItem *)sender;
 556     VLCMenuExt *o_data = [[o_mi representedObject] pointerValue];
 557     [NSThread detachNewThreadSelector: @selector(toggleVarThread:)
 558         toTarget: self withObject: o_data];
 559
 560     return;
 561 }
 562
 563 - (int)toggleVarThread: (id)_o_data
 564 {
 565     vlc_object_t *p_object;
 566     NSAutoreleasePool * o_pool = [[NSAutoreleasePool alloc] init];
 567     VLCMenuExt *o_data = (VLCMenuExt *)_o_data;
 568
 569     vlc_thread_set_priority( [NSApp getIntf] , VLC_THREAD_PRIORITY_LOW );
 570
 571     p_object = (vlc_object_t *)vlc_object_get( [NSApp getIntf],
 572                                     [o_data objectID] );
 573
 574     if( p_object != NULL )
 575     {
 576         var_Set( p_object, strdup([o_data name]), [o_data value] );
 577         vlc_object_release( p_object );
 578         [o_pool release];
 579         return VLC_TRUE;
 580     }
 581     [o_pool release];
 582     return VLC_EGENERIC;
 583 }
 584
 585 @end
 586
 587 @implementation VLCControls (NSMenuValidation)
 588
 589 - (BOOL)validateMenuItem:(NSMenuItem *)o_mi
 590 {
 591     BOOL bEnabled = TRUE;
 592     intf_thread_t * p_intf = [NSApp getIntf];
 593
 594     playlist_t * p_playlist = vlc_object_find( p_intf, VLC_OBJECT_PLAYLIST,
 595                                                        FIND_ANYWHERE );
 596
 597     if( p_playlist != NULL )
 598     {
 599         vlc_mutex_lock( &p_playlist->object_lock );
 600     }
 601
 602 #define p_input p_playlist->p_input
 603
 604     if( [[o_mi title] isEqualToString: _NS("Faster")] ||
 605         [[o_mi title] isEqualToString: _NS("Slower")] )
 606     {
 607         if( p_playlist != NULL && p_input != NULL )
 608         {
 609             vlc_mutex_lock( &p_input->stream.stream_lock );
 610             bEnabled = p_input->stream.b_pace_control;
 611             vlc_mutex_unlock( &p_input->stream.stream_lock );
 612         }
 613         else
 614         {
 615             bEnabled = FALSE;
 616         }
 617     }
 618     else if( [[o_mi title] isEqualToString: _NS("Stop")] )
 619     {
 620         if( p_playlist == NULL || p_input == NULL )
 621         {
 622             bEnabled = FALSE;
 623         }
 624     }
 625     else if( [[o_mi title] isEqualToString: _NS("Previous")] ||
 626              [[o_mi title] isEqualToString: _NS("Next")] )
 627     {
 628         if( p_playlist == NULL )
 629         {
 630             bEnabled = FALSE;
 631         }
 632         else
 633         {
 634             bEnabled = p_playlist->i_size > 1;
 635
 636             if( p_input != NULL )
 637             {
 638                 vlc_mutex_lock( &p_input->stream.stream_lock );
 639                 bEnabled |= p_input->stream.i_area_nb > 1;
 640                 vlc_mutex_unlock( &p_input->stream.stream_lock );
 641             }
 642         }
 643     }
 644     else if( [[o_mi title] isEqualToString: _NS("Loop")] )
 645     {
 646         int i_state = config_GetInt( p_playlist, "loop" ) ?
 647                       NSOnState : NSOffState;
 648
 649         [o_mi setState: i_state];
 650     }
 651     else if( [[o_mi title] isEqualToString: _NS("Step Forward")] ||
 652              [[o_mi title] isEqualToString: _NS("Step Backward")] )
 653     {
 654         if( p_playlist != NULL && p_input != NULL )
 655         {
 656             vlc_mutex_lock( &p_input->stream.stream_lock );
 657             bEnabled = p_input->stream.b_seekable;
 658             vlc_mutex_unlock( &p_input->stream.stream_lock );
 659         }
 660         else
 661         {
 662             bEnabled = FALSE;
 663         }
 664     }
 665     else if( [[o_mi title] isEqualToString: _NS("Mute")] )
 666     {
 667         [o_mi setState: p_intf->p_sys->b_mute ? NSOnState : NSOffState];
 668     }
 669     else if( [[o_mi title] isEqualToString: _NS("Fullscreen")] ||
 670                 [[o_mi title] isEqualToString: _NS("Half Size")] ||
 671                 [[o_mi title] isEqualToString: _NS("Normal Size")] ||
 672                 [[o_mi title] isEqualToString: _NS("Double Size")] ||
 673                 [[o_mi title] isEqualToString: _NS("Fit To Screen")] ||
 674                 [[o_mi title] isEqualToString: _NS("Float On Top")] )
 675     {
 676         id o_window;
 677         NSArray *o_windows = [NSApp windows];
 678         NSEnumerator *o_enumerator = [o_windows objectEnumerator];
 679         bEnabled = FALSE;
 680
 681         if ( [[o_mi title] isEqualToString: _NS("Float On Top")] )
 682         {
 683             int i_state = config_GetInt( p_playlist, "macosx-float" ) ?
 684                       NSOnState : NSOffState;
 685             [o_mi setState: i_state];
 686         }
 687
 688         vout_thread_t   *p_vout = vlc_object_find( p_intf, VLC_OBJECT_VOUT,
 689                                               FIND_ANYWHERE );
 690         if( p_vout != NULL )
 691         {
 692             while ((o_window = [o_enumerator nextObject]))
 693             {
 694                 if( [[o_window className] isEqualToString: @"VLCWindow"] )
 695                 {
 696                     bEnabled = TRUE;
 697                     break;
 698                 }
 699             }
 700             vlc_object_release( (vlc_object_t *)p_vout );
 701         }
 702     }
 703
 704     if( p_playlist != NULL )
 705     {
 706         vlc_mutex_unlock( &p_playlist->object_lock );
 707         vlc_object_release( p_playlist );
 708     }
 709
 710     return( bEnabled );
 711 }
 712
 713 @end
 714
 715 /*****************************************************************************
 716  * VLCMenuExt implementation
 717  *****************************************************************************
 718  * Object connected to a playlistitem which remembers the data belonging to
 719  * the variable of the autogenerated menu
 720  *****************************************************************************/
 721 @implementation VLCMenuExt
 722
 723 - (id)initWithVar: (const char *)_psz_name Object: (int)i_id
 724         Value: (vlc_value_t)val ofType: (int)_i_type
 725 {
 726     self = [super init];
 727
 728     if( self != nil )
 729     {
 730         psz_name = strdup( _psz_name );
 731         i_object_id = i_id;
 732         value = val;
 733         i_type = _i_type;
 734     }
 735
 736     return( self );
 737 }
 738
 739 - (void)dealloc
 740 {
 741     free( psz_name );
 742 }
 743
 744 - (char *)name
 745 {
 746     return psz_name;
 747 }
 748
 749 - (int)objectID
 750 {
 751     return i_object_id;
 752 }
 753
 754 - (vlc_value_t)value
 755 {
 756     return value;
 757 }
 758
 759 - (int)type
 760 {
 761     return i_type;
 762 }
 763
 764 @end