protected async Task GetTracksCommonAsync(IList <TrackInfo> tracks, TrackOrder trackOrder)
{
try
{
// Do we need to show the TrackNumber?
bool showTracknumber = this.TrackOrder == TrackOrder.ByAlbum;
// Create new ObservableCollection
ObservableCollection <TrackInfoViewModel> trackInfoViewModels = new ObservableCollection <TrackInfoViewModel>();
// Order the incoming Tracks
List <TrackInfo> orderedTracks = await Core.Database.Utils.OrderTracksAsync(tracks, trackOrder);
await Task.Run(() =>
{
foreach (TrackInfo ti in orderedTracks)
{
TrackInfoViewModel tivm = this.container.Resolve <TrackInfoViewModel>();
tivm.TrackInfo = ti;
tivm.ShowTrackNumber = showTracknumber;
trackInfoViewModels.Add(tivm);
}
});
// Unbind to improve UI performance
if (this.TracksCvs != null)
{
this.TracksCvs.Filter -= new FilterEventHandler(TracksCvs_Filter);
}
this.Tracks = null;
this.TracksCvs = null;
// Populate ObservableCollection
this.Tracks = trackInfoViewModels;
}
catch (Exception ex)
{
LogClient.Instance.Logger.Error("An error occurred while getting Tracks. Exception: {0}", ex.Message);
// Failed getting Tracks. Create empty ObservableCollection.
this.Tracks = new ObservableCollection <TrackInfoViewModel>();
}
// Populate CollectionViewSource
this.TracksCvs = new CollectionViewSource {
Source = this.Tracks
};
this.TracksCvs.Filter += new FilterEventHandler(TracksCvs_Filter);
// Update count
this.TracksCount = this.TracksCvs.View.Cast <TrackInfoViewModel>().Count();
// Group by Album if needed
if (this.TrackOrder == TrackOrder.ByAlbum)
{
this.TracksCvs.GroupDescriptions.Add(new PropertyGroupDescription("GroupHeader"));
}
// Update duration and size
this.SetSizeInformationAsync();
// Show playing Track
this.ShowPlayingTrackAsync();
// Set Track artwork
this.collectionService.SetTrackArtworkAsync(this.Tracks, Constants.ArtworkLoadDelay);
}
protected void TracksCvs_Filter(object sender, FilterEventArgs e)
{
TrackInfoViewModel tivm = e.Item as TrackInfoViewModel;
e.Accepted = Dopamine.Core.Database.Utils.FilterTracks(tivm.TrackInfo, this.searchService.SearchText);
}