/// <summary>
/// Конструктор по умолчанию.
/// </summary>
public AudiosViewModel(string uniqueKey, long ownerID)
: base(uniqueKey)
{
_audios = new AudiosCollection(ownerID);
_recommendations = new RecommendedAudiosCollection((ulong)ownerID);
_popular = new PopularAudiosCollection();
_albums = new AudioAlbumsCollection(ownerID);
Refresh = new RelayCommand(() => Audios.Refresh());
RefreshAlbums = new RelayCommand(() => Albums.Refresh());
RefreshPopular = new RelayCommand(() => Popular.Refresh());
RefreshRecommended = new RelayCommand(() => Recommendations.Refresh());
DeleteCommand = new RelayCommand <VKAudio>(async audio =>
{
var request = new Request.DeleteAudioRequest(audio.ID, audio.OwnerID);
var response = await request.ExecuteAsync();
if (response.Error.ErrorType == VKErrors.None)
{
Audios.Remove(audio);
}
else
{
await ServiceHelper.DialogService.ShowMessageBox("Произошла ошибка: " + response.Error.ErrorType.ToString(),
"Не удалось удалить аудиозапись.");
}
});
DownloadAudio = new RelayCommand <VKAudio>(async audio =>
{
var command = new VKSaverDownloadCommand();
command.Downloads.Add(CoreHelper.GetDownload(audio));
await command.TryExecute();
});
#if DEBUG
if (ViewModelBase.IsInDesignModeStatic)
{
for (int i = 0; i < 71; i++)
{
Audios.Add(DesignDataHelper.GetAudio());
Recommendations.Add(DesignDataHelper.GetAudio());
Popular.Add(DesignDataHelper.GetAudio());
}
}
#endif
}
/// <summary>
/// Конструктор по умолчанию.
/// </summary>
public PlayerViewModel()
{
#if DEBUG
if (IsInDesignModeStatic)
{
CurrentTrack = new VKAudio {
Title = "Poker Face", Artist = "Lady Gaga", LyricsID = 1
};
DurationStart = TimeSpan.FromSeconds(0);
DurationEnd = TimeSpan.FromSeconds(123);
ArtistImage = new BitmapImage(new Uri("http://userserve-ak.last.fm/serve/500/60890169/Lady+Gaga+Gaga.png"));
return;
}
#endif
NextTrack = new RelayCommand(() =>
{
if (Tracks == null || Tracks.Count == 0)
{
return;
}
ServiceHelper.PlayerService.NextTrack();
Duration = TimeSpan.Zero;
DurationStart = TimeSpan.Zero;
DurationEnd = TimeSpan.Zero;
if (_currentTrackID + 1 == Tracks.Count)
{
_currentTrackID = 0;
}
else
{
_currentTrackID++;
}
});
PreviousTrack = new RelayCommand(() =>
{
if (CurrentTrack == null || Tracks == null || Tracks.Count == 0)
{
return;
}
ServiceHelper.PlayerService.PreviousTrack();
DurationStart = TimeSpan.Zero;
DurationEnd = TimeSpan.Zero;
if (_currentTrackID - 1 == -1)
{
_currentTrackID = Tracks.Count - 1;
}
else
{
_currentTrackID--;
}
});
PlayTrack = new RelayCommand <IAudioTrack>(a => SetNewTrack(a));
PlayResume = new RelayCommand(() => ServiceHelper.PlayerService.ResumePause());
DownloadTrack = new RelayCommand(async() =>
{
var command = new VKSaverDownloadCommand();
//command.Downloads.Add(CoreHelper.GetDownload(CurrentTrack));
await command.TryExecute();
}, () => CurrentTrack != null && !String.IsNullOrEmpty(CurrentTrack.Source));
ShowTrackLyrics = new RelayCommand(() =>
{
NavigationHelper.Navigate(AppViews.TrackLyricsView, CurrentTrack);
},
() => CurrentTrack != null && CurrentTrack.LyricsID != 0);
_timer.Tick += (s, e) =>
{
if (ServiceHelper.PlayerService.CurrentState == PlayerState.Playing)
{
try
{
DurationStart = ServiceHelper.PlayerService.CurrentPosition;
DurationEnd = DurationStart - Duration;
}
catch (Exception) { }
}
};
_timer.Start();
Messenger.Default.Register <PlayTrackMessage>(this, OnPlayTrackMessageReceived);
}
