git.sesse.net Git - vlc/blob - projects/macosx/framework/Sources/VLCExtensionsManager.m

   1 //
   2 //  VLCExtensionsManager.m
   3 //  VLCKit
   4 //
   5 //  Created by Pierre d'Herbemont on 1/26/10.
   6 //  Copyright 2010 __MyCompanyName__. All rights reserved.
   7 //
   8
   9 #import "VLCExtensionsManager.h"
  10 #import "VLCExtension.h"
  11 #import "VLCLibrary.h"
  12 #import "VLCLibVLCBridging.h"
  13 #import <vlc_extensions.h>
  14 #import <vlc_input.h>
  15
  16 #define _instance ((extensions_manager_t *)instance)
  17
  18 @implementation VLCExtensionsManager
  19 static VLCExtensionsManager *sharedManager = nil;
  20
  21 + (VLCExtensionsManager *)sharedManager
  22 {
  23     if (!sharedManager)
  24     {
  25         /* Initialize a shared instance */
  26         sharedManager = [[self alloc] init];
  27     }
  28     return sharedManager;
  29 }
  30
  31 - (void)dealloc
  32 {
  33     vlc_object_t *libvlc = libvlc_get_vlc_instance([VLCLibrary sharedInstance]);
  34     vlc_object_release(libvlc);
  35     module_unneed(_instance, _instance->p_module);
  36     vlc_object_release(_instance);
  37
  38     [[NSNotificationCenter defaultCenter] removeObserver:self];
  39
  40     [_extensions release];
  41     [super dealloc];
  42 }
  43
  44 - (NSArray *)extensions
  45 {
  46     if (!instance)
  47     {
  48         vlc_object_t *libvlc = libvlc_get_vlc_instance([VLCLibrary sharedInstance]);
  49         instance = vlc_object_create(libvlc, sizeof(extensions_manager_t));
  50         if (!_instance)
  51         {
  52             vlc_object_release(libvlc);
  53             return nil;
  54         }
  55         vlc_object_attach(_instance, libvlc);
  56
  57         _instance->p_module = module_need(_instance, "extension", NULL, false);
  58         NSAssert(_instance->p_module, @"Unable to load extensions module");
  59
  60         vlc_object_release(libvlc);
  61     }
  62
  63     if (_extensions)
  64         return _extensions;
  65     _extensions = [[NSMutableArray alloc] init];
  66     extension_t *ext;
  67     FOREACH_ARRAY(ext, _instance->extensions)
  68         VLCExtension *extension = [[VLCExtension alloc] initWithInstance:ext];
  69         [_extensions addObject:extension];
  70         [extension release];
  71     FOREACH_END()
  72     return _extensions;
  73 }
  74
  75 - (void)runExtension:(VLCExtension *)extension
  76 {
  77     extension_t *ext = [extension instance];
  78
  79     if(extension_TriggerOnly(_instance, ext))
  80         extension_Trigger(_instance, ext);
  81     else
  82     {
  83         if(!extension_IsActivated(_instance, ext))
  84             extension_Activate(_instance, ext);
  85     }
  86 }
  87
  88 - (void)mediaPlayerLikelyChangedInput
  89 {
  90     input_thread_t *input = _player ? libvlc_media_player_get_input_thread([_player libVLCMediaPlayer]) : NULL;
  91
  92     // Don't send more than appropriate
  93     if (_previousInput == input)
  94         return;
  95     _previousInput = input;
  96
  97     for(VLCExtension *extension in _extensions)
  98         extension_SetInput(_instance, [extension instance], input);
  99     if (input)
 100         vlc_object_release(input);
 101 }
 102
 103 - (void)setMediaPlayer:(VLCMediaPlayer *)player
 104 {
 105     if (_player == player)
 106         return;
 107
 108     // Don't set a NULL mediaPlayer.
 109     // so that we always have an input around.
 110     if (!player)
 111         return;
 112
 113     NSNotificationCenter *center = [NSNotificationCenter defaultCenter];
 114     [center removeObserver:self name:VLCMediaPlayerStateChanged object:_player];
 115
 116     [_player release];
 117     _player = [player retain];
 118
 119     [self mediaPlayerLikelyChangedInput];
 120
 121
 122     if (player)
 123         [center addObserver:self selector:@selector(mediaPlayerLikelyChangedInput) name:VLCMediaPlayerStateChanged object:_player];
 124 }
 125
 126 - (VLCMediaPlayer *)mediaPlayer
 127 {
 128     return _player;
 129 }
 130 @end