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         vout_OSDMessage( p_intf, _( "Jump +10 Seconds" ) );
 260         vlc_object_release( p_input );
 261     }
 262 }
 263
 264 - (IBAction)backward:(id)sender
 265 {
 266     intf_thread_t * p_intf = [NSApp getIntf];
 267     input_thread_t * p_input = vlc_object_find( p_intf, VLC_OBJECT_INPUT,
 268                                                        FIND_ANYWHERE );
 269     if( p_input != NULL )
 270     {
 271         vlc_value_t time;
 272         time.i_time = -10 * 1000000;
 273         var_Set( p_input, "time-offset", time );
 274         vout_OSDMessage( p_intf, _( "Jump -10 Seconds" ) );
 275         vlc_object_release( p_input );
 276     }
 277 }
 278
 279 - (IBAction)volumeUp:(id)sender
 280 {
 281     intf_thread_t * p_intf = [NSApp getIntf];
 282
 283     if( p_intf->p_sys->b_mute )
 284     {
 285         [self mute: nil];
 286     }
 287
 288     aout_VolumeUp( p_intf, 1, NULL );
 289
 290     [self updateVolumeSlider];
 291 }
 292
 293 - (IBAction)volumeDown:(id)sender
 294 {
 295     intf_thread_t * p_intf = [NSApp getIntf];
 296
 297     if( p_intf->p_sys->b_mute )
 298     {
 299         [self mute: nil];
 300     }
 301
 302     aout_VolumeDown( p_intf, 1, NULL );
 303
 304     [self updateVolumeSlider];
 305 }
 306
 307 - (IBAction)mute:(id)sender
 308 {
 309     intf_thread_t * p_intf = [NSApp getIntf];
 310     audio_volume_t i_volume;
 311
 312     aout_VolumeMute( p_intf, &i_volume );
 313     p_intf->p_sys->b_mute = ( i_volume == 0 );
 314
 315     [self updateVolumeSlider];
 316 }
 317
 318 - (IBAction)volumeSliderUpdated:(id)sender
 319 {
 320     intf_thread_t * p_intf = [NSApp getIntf];
 321     audio_volume_t i_volume = (audio_volume_t)[sender intValue];
 322
 323     aout_VolumeSet( p_intf, i_volume * AOUT_VOLUME_STEP );
 324 }
 325
 326 - (void)updateVolumeSlider
 327 {
 328     intf_thread_t * p_intf = [NSApp getIntf];
 329     audio_volume_t i_volume;
 330
 331     aout_VolumeGet( p_intf, &i_volume );
 332
 333     [o_volumeslider setFloatValue: (float)(i_volume / AOUT_VOLUME_STEP)];
 334
 335     vout_OSDMessage( p_intf, "Vol %d%%", i_volume*100/AOUT_VOLUME_MAX );
 336 }
 337
 338 - (IBAction)windowAction:(id)sender
 339 {
 340     id o_window = [NSApp keyWindow];
 341     NSString *o_title = [sender title];
 342     NSArray *o_windows = [NSApp orderedWindows];
 343     NSEnumerator *o_enumerator = [o_windows objectEnumerator];
 344     vout_thread_t   *p_vout = vlc_object_find( [NSApp getIntf], VLC_OBJECT_VOUT,
 345                                               FIND_ANYWHERE );
 346
 347     if( p_vout != NULL )
 348     {
 349         while ((o_window = [o_enumerator nextObject]))
 350         {
 351             if( [[o_window className] isEqualToString: @"VLCWindow"] )
 352             {
 353                 if( [o_title isEqualToString: _NS("Half Size") ] )
 354                     [o_window scaleWindowWithFactor: 0.5];
 355                 else if( [o_title isEqualToString: _NS("Normal Size") ] )
 356                     [o_window scaleWindowWithFactor: 1.0];
 357                 else if( [o_title isEqualToString: _NS("Double Size") ] )
 358                     [o_window scaleWindowWithFactor: 2.0];
 359                 else if( [o_title isEqualToString: _NS("Float on Top") ] )
 360                     [o_window toggleFloatOnTop];
 361                 else if( [o_title isEqualToString: _NS("Fit to Screen") ] )
 362                 {
 363                     if( ![o_window isZoomed] )
 364                         [o_window performZoom:self];
 365                 }
 366                 else
 367                 {
 368                     [o_window toggleFullscreen];
 369                 }
 370                 break;
 371             }
 372         }
 373         vlc_object_release( (vlc_object_t *)p_vout );
 374     }
 375 }
 376
 377 - (void)setupVarMenuItem:(NSMenuItem *)o_mi
 378                     target:(vlc_object_t *)p_object
 379                     var:(const char *)psz_variable
 380                     selector:(SEL)pf_callback
 381 {
 382     vlc_value_t val, text;
 383     int i_type = var_Type( p_object, psz_variable );
 384
 385     switch( i_type & VLC_VAR_TYPE )
 386     {
 387     case VLC_VAR_VOID:
 388     case VLC_VAR_BOOL:
 389     case VLC_VAR_VARIABLE:
 390     case VLC_VAR_STRING:
 391     case VLC_VAR_INTEGER:
 392         break;
 393     default:
 394         /* Variable doesn't exist or isn't handled */
 395         return;
 396     }
 397
 398     /* Make sure we want to display the variable */
 399     if( i_type & VLC_VAR_HASCHOICE )
 400     {
 401         var_Change( p_object, psz_variable, VLC_VAR_CHOICESCOUNT, &val, NULL );
 402         if( val.i_int == 0 ) return;
 403         if( (i_type & VLC_VAR_TYPE) != VLC_VAR_VARIABLE && val.i_int == 1 )
 404             return;
 405     }
 406
 407     /* Get the descriptive name of the variable */
 408     var_Change( p_object, psz_variable, VLC_VAR_GETTEXT, &text, NULL );
 409     [o_mi setTitle: [NSApp localizedString: text.psz_string ?
 410                                         text.psz_string : strdup( psz_variable ) ]];
 411
 412     var_Get( p_object, psz_variable, &val );
 413     if( i_type & VLC_VAR_HASCHOICE )
 414     {
 415         NSMenu *o_menu = [o_mi submenu];
 416
 417         [self setupVarMenu: o_menu forMenuItem: o_mi target:p_object
 418                         var:psz_variable selector:pf_callback];
 419
 420         if( text.psz_string ) free( text.psz_string );
 421         return;
 422     }
 423
 424     VLCMenuExt *o_data;
 425     switch( i_type & VLC_VAR_TYPE )
 426     {
 427     case VLC_VAR_VOID:
 428         o_data = [[VLCMenuExt alloc] initWithVar: psz_variable Object: p_object->i_object_id
 429                 Value: val ofType: i_type];
 430         [o_mi setRepresentedObject: [NSValue valueWithPointer:[o_data retain]]];
 431         break;
 432
 433     case VLC_VAR_BOOL:
 434         o_data = [[VLCMenuExt alloc] initWithVar: psz_variable Object: p_object->i_object_id
 435                 Value: val ofType: i_type];
 436         [o_mi setRepresentedObject: [NSValue valueWithPointer:[o_data retain]]];
 437         [o_mi setState: val.b_bool ? TRUE : FALSE ];
 438         break;
 439
 440     default:
 441         if( text.psz_string ) free( text.psz_string );
 442         return;
 443     }
 444
 445     if( (i_type & VLC_VAR_TYPE) == VLC_VAR_STRING ) free( val.psz_string );
 446     if( text.psz_string ) free( text.psz_string );
 447 }
 448
 449
 450 - (void)setupVarMenu:(NSMenu *)o_menu
 451                     forMenuItem: (NSMenuItem *)o_parent
 452                     target:(vlc_object_t *)p_object
 453                     var:(const char *)psz_variable
 454                     selector:(SEL)pf_callback
 455 {
 456     vlc_value_t val, val_list, text_list;
 457     int i_type, i, i_nb_items;
 458
 459     /* remove previous items */
 460     i_nb_items = [o_menu numberOfItems];
 461     for( i = 0; i < i_nb_items; i++ )
 462     {
 463         [o_menu removeItemAtIndex: 0];
 464     }
 465
 466     /* Check the type of the object variable */
 467     i_type = var_Type( p_object, psz_variable );
 468
 469     /* Make sure we want to display the variable */
 470     if( i_type & VLC_VAR_HASCHOICE )
 471     {
 472         var_Change( p_object, psz_variable, VLC_VAR_CHOICESCOUNT, &val, NULL );
 473         if( val.i_int == 0 ) return;
 474         if( (i_type & VLC_VAR_TYPE) != VLC_VAR_VARIABLE && val.i_int == 1 )
 475             return;
 476     }
 477     else
 478     {
 479         return;
 480     }
 481
 482     switch( i_type & VLC_VAR_TYPE )
 483     {
 484     case VLC_VAR_VOID:
 485     case VLC_VAR_BOOL:
 486     case VLC_VAR_VARIABLE:
 487     case VLC_VAR_STRING:
 488     case VLC_VAR_INTEGER:
 489         break;
 490     default:
 491         /* Variable doesn't exist or isn't handled */
 492         return;
 493     }
 494
 495     if( var_Get( p_object, psz_variable, &val ) < 0 )
 496     {
 497         return;
 498     }
 499
 500     if( var_Change( p_object, psz_variable, VLC_VAR_GETLIST,
 501                     &val_list, &text_list ) < 0 )
 502     {
 503         if( (i_type & VLC_VAR_TYPE) == VLC_VAR_STRING ) free( val.psz_string );
 504         return;
 505     }
 506
 507     /* make (un)sensitive */
 508     [o_parent setEnabled: ( val_list.p_list->i_count > 1 )];
 509
 510     for( i = 0; i < val_list.p_list->i_count; i++ )
 511     {
 512         vlc_value_t another_val;
 513         NSMenuItem * o_lmi;
 514         NSString *o_title = @"";
 515         VLCMenuExt *o_data;
 516
 517         switch( i_type & VLC_VAR_TYPE )
 518         {
 519         case VLC_VAR_VARIABLE:
 520
 521             /* This is causing crashes for the moment.
 522             o_title = [NSApp localizedString: text_list.p_list->p_values[i].psz_string ?
 523                 text_list.p_list->p_values[i].psz_string : val_list.p_list->p_values[i].psz_string ];
 524
 525             o_data = [[VLCMenuExt alloc] initWithVar: strdup(psz_variable) Object: p_object->i_object_id
 526                 Value: val ofType: i_type];
 527             [o_lmi setRepresentedObject: [NSValue valueWithPointer:[o_data retain]]];
 528
 529             // Create a submenu
 530             NSMenu *o_menu = [o_lmi submenu];
 531
 532             [self setupVarMenu: o_menu forMenuItem: o_lmi target:p_object
 533                             var:psz_variable selector:pf_callback];
 534 */
 535             return;
 536
 537         case VLC_VAR_STRING:
 538             another_val.psz_string =
 539                 strdup(val_list.p_list->p_values[i].psz_string);
 540
 541             o_title = [NSApp localizedString: text_list.p_list->p_values[i].psz_string ?
 542                 text_list.p_list->p_values[i].psz_string : val_list.p_list->p_values[i].psz_string ];
 543
 544             o_lmi = [o_menu addItemWithTitle: o_title action: pf_callback keyEquivalent: @""];
 545             o_data = [[VLCMenuExt alloc] initWithVar: strdup(psz_variable) Object: p_object->i_object_id
 546                     Value: another_val ofType: i_type];
 547             [o_lmi setRepresentedObject: [NSValue valueWithPointer:[o_data retain]]];
 548             [o_lmi setTarget: self];
 549
 550             if( !strcmp( val.psz_string, val_list.p_list->p_values[i].psz_string ) )
 551                 [o_lmi setState: TRUE ];
 552
 553             break;
 554
 555         case VLC_VAR_INTEGER:
 556
 557              o_title = text_list.p_list->p_values[i].psz_string ?
 558                                  [NSApp localizedString: strdup( text_list.p_list->p_values[i].psz_string )] :
 559                                  [NSString stringWithFormat: @"%d",
 560                                  val_list.p_list->p_values[i].i_int];
 561
 562             o_lmi = [[o_menu addItemWithTitle: o_title action: pf_callback keyEquivalent: @""] retain ];
 563             o_data = [[VLCMenuExt alloc] initWithVar: strdup(psz_variable) Object: p_object->i_object_id
 564                     Value: val_list.p_list->p_values[i] ofType: i_type];
 565             [o_lmi setRepresentedObject: [NSValue valueWithPointer:[ o_data retain]]];
 566             [o_lmi setTarget: self];
 567
 568             if( val_list.p_list->p_values[i].i_int == val.i_int )
 569                 [o_lmi setState: TRUE ];
 570             break;
 571
 572         default:
 573           break;
 574         }
 575     }
 576
 577     /* clean up everything */
 578     if( (i_type & VLC_VAR_TYPE) == VLC_VAR_STRING ) free( val.psz_string );
 579     var_Change( p_object, psz_variable, VLC_VAR_FREELIST, &val_list, &text_list );
 580 }
 581
 582 - (IBAction)toggleVar:(id)sender
 583 {
 584     NSMenuItem *o_mi = (NSMenuItem *)sender;
 585     VLCMenuExt *o_data = [[o_mi representedObject] pointerValue];
 586     [NSThread detachNewThreadSelector: @selector(toggleVarThread:)
 587         toTarget: self withObject: o_data];
 588
 589     return;
 590 }
 591
 592 - (int)toggleVarThread: (id)_o_data
 593 {
 594     vlc_object_t *p_object;
 595     NSAutoreleasePool * o_pool = [[NSAutoreleasePool alloc] init];
 596     VLCMenuExt *o_data = (VLCMenuExt *)_o_data;
 597
 598     vlc_thread_set_priority( [NSApp getIntf] , VLC_THREAD_PRIORITY_LOW );
 599
 600     p_object = (vlc_object_t *)vlc_object_get( [NSApp getIntf],
 601                                     [o_data objectID] );
 602
 603     if( p_object != NULL )
 604     {
 605         var_Set( p_object, strdup([o_data name]), [o_data value] );
 606         vlc_object_release( p_object );
 607         [o_pool release];
 608         return VLC_TRUE;
 609     }
 610     [o_pool release];
 611     return VLC_EGENERIC;
 612 }
 613
 614 @end
 615
 616 @implementation VLCControls (NSMenuValidation)
 617
 618 - (BOOL)validateMenuItem:(NSMenuItem *)o_mi
 619 {
 620     BOOL bEnabled = TRUE;
 621     vlc_value_t val;
 622     intf_thread_t * p_intf = [NSApp getIntf];
 623     playlist_t * p_playlist = vlc_object_find( p_intf, VLC_OBJECT_PLAYLIST,
 624                                                        FIND_ANYWHERE );
 625
 626     if( p_playlist != NULL )
 627     {
 628         vlc_mutex_lock( &p_playlist->object_lock );
 629     }
 630
 631 #define p_input p_playlist->p_input
 632
 633     if( [[o_mi title] isEqualToString: _NS("Faster")] ||
 634         [[o_mi title] isEqualToString: _NS("Slower")] )
 635     {
 636         if( p_playlist != NULL && p_input != NULL )
 637         {
 638             vlc_mutex_lock( &p_input->stream.stream_lock );
 639             bEnabled = p_input->stream.b_pace_control;
 640             vlc_mutex_unlock( &p_input->stream.stream_lock );
 641         }
 642         else
 643         {
 644             bEnabled = FALSE;
 645         }
 646     }
 647     else if( [[o_mi title] isEqualToString: _NS("Stop")] )
 648     {
 649         if( p_playlist == NULL || p_input == NULL )
 650         {
 651             bEnabled = FALSE;
 652         }
 653     }
 654     else if( [[o_mi title] isEqualToString: _NS("Previous")] ||
 655              [[o_mi title] isEqualToString: _NS("Next")] )
 656     {
 657         if( p_playlist == NULL )
 658         {
 659             bEnabled = FALSE;
 660         }
 661         else
 662         {
 663             bEnabled = p_playlist->i_size > 1;
 664
 665             if( p_input != NULL )
 666             {
 667                 vlc_mutex_lock( &p_input->stream.stream_lock );
 668                 bEnabled |= p_input->stream.i_area_nb > 1;
 669                 vlc_mutex_unlock( &p_input->stream.stream_lock );
 670             }
 671         }
 672     }
 673     else if( [[o_mi title] isEqualToString: _NS("Random")] )
 674     {
 675         int i_state;
 676         var_Get( p_playlist, "random", &val );
 677         i_state = val.b_bool ? NSOnState : NSOffState;
 678         [o_mi setState: i_state];
 679     }
 680     else if( [[o_mi title] isEqualToString: _NS("Repeat One")] )
 681     {
 682         int i_state;
 683         var_Get( p_playlist, "repeat", &val );
 684         i_state = val.b_bool ? NSOnState : NSOffState;
 685         [o_mi setState: i_state];
 686     }
 687     else if( [[o_mi title] isEqualToString: _NS("Repeat All")] )
 688     {
 689         int i_state;
 690         var_Get( p_playlist, "loop", &val );
 691         i_state = val.b_bool ? NSOnState : NSOffState;
 692         [o_mi setState: i_state];
 693     }
 694     else if( [[o_mi title] isEqualToString: _NS("Step Forward")] ||
 695              [[o_mi title] isEqualToString: _NS("Step Backward")] )
 696     {
 697         if( p_playlist != NULL && p_input != NULL )
 698         {
 699             vlc_mutex_lock( &p_input->stream.stream_lock );
 700             bEnabled = p_input->stream.b_seekable;
 701             vlc_mutex_unlock( &p_input->stream.stream_lock );
 702         }
 703         else
 704         {
 705             bEnabled = FALSE;
 706         }
 707     }
 708     else if( [[o_mi title] isEqualToString: _NS("Mute")] )
 709     {
 710         [o_mi setState: p_intf->p_sys->b_mute ? NSOnState : NSOffState];
 711     }
 712     else if( [[o_mi title] isEqualToString: _NS("Fullscreen")] ||
 713                 [[o_mi title] isEqualToString: _NS("Half Size")] ||
 714                 [[o_mi title] isEqualToString: _NS("Normal Size")] ||
 715                 [[o_mi title] isEqualToString: _NS("Double Size")] ||
 716                 [[o_mi title] isEqualToString: _NS("Fit to Screen")] ||
 717                 [[o_mi title] isEqualToString: _NS("Float on Top")] )
 718     {
 719         id o_window;
 720         NSArray *o_windows = [NSApp orderedWindows];
 721         NSEnumerator *o_enumerator = [o_windows objectEnumerator];
 722         bEnabled = FALSE;
 723
 724         if ( [[o_mi title] isEqualToString: _NS("Float on Top")] )
 725         {
 726             int i_state = config_GetInt( p_playlist, "video-on-top" ) ?
 727                       NSOnState : NSOffState;
 728             [o_mi setState: i_state];
 729         }
 730
 731         vout_thread_t   *p_vout = vlc_object_find( p_intf, VLC_OBJECT_VOUT,
 732                                               FIND_ANYWHERE );
 733         if( p_vout != NULL )
 734         {
 735             while ((o_window = [o_enumerator nextObject]))
 736             {
 737                 if( [[o_window className] isEqualToString: @"VLCWindow"] )
 738                 {
 739                     bEnabled = TRUE;
 740                     break;
 741                 }
 742             }
 743             vlc_object_release( (vlc_object_t *)p_vout );
 744         }
 745     }
 746
 747     if( p_playlist != NULL )
 748     {
 749         vlc_mutex_unlock( &p_playlist->object_lock );
 750         vlc_object_release( p_playlist );
 751     }
 752
 753     return( bEnabled );
 754 }
 755
 756 @end
 757
 758 /*****************************************************************************
 759  * VLCMenuExt implementation
 760  *****************************************************************************
 761  * Object connected to a playlistitem which remembers the data belonging to
 762  * the variable of the autogenerated menu
 763  *****************************************************************************/
 764 @implementation VLCMenuExt
 765
 766 - (id)initWithVar: (const char *)_psz_name Object: (int)i_id
 767         Value: (vlc_value_t)val ofType: (int)_i_type
 768 {
 769     self = [super init];
 770
 771     if( self != nil )
 772     {
 773         psz_name = strdup( _psz_name );
 774         i_object_id = i_id;
 775         value = val;
 776         i_type = _i_type;
 777     }
 778
 779     return( self );
 780 }
 781
 782 - (void)dealloc
 783 {
 784     free( psz_name );
 785 }
 786
 787 - (char *)name
 788 {
 789     return psz_name;
 790 }
 791
 792 - (int)objectID
 793 {
 794     return i_object_id;
 795 }
 796
 797 - (vlc_value_t)value
 798 {
 799     return value;
 800 }
 801
 802 - (int)type
 803 {
 804     return i_type;
 805 }
 806
 807 @end