private void OnTracksInQueueChanged(PlayqueueChangedEventArgs eventArgs)
{
if (eventArgs == null)
{
throw new ArgumentNullException("eventArgs");
}
SerializePlayqueue();
if (PlayqueueChanged != null)
{
PlayqueueChanged(this, eventArgs);
}
}
public void RemoveTracksFromQueue(IEnumerable <Guid> tracksToRemove)
{
// If not using an array, an Invalid Operation Exception will be thrown : something about Movenext, maybe the enumerator is not correctly implemented.
var trackToRemoveArray = tracksToRemove.ToArray();
PlayqueueChangedEventArgs ea = new PlayqueueChangedEventArgs();
var guidToTrackMappings = new GuidToTrackMapping[trackToRemoveArray.Length];
int guidToTrackMappingIndex = 0;
foreach (var guid in trackToRemoveArray)
{
var guidToTrackMapping = _tracksToGuidMapping.Single(o => o.Guid == guid);
_tracksToGuidMapping.Remove(guidToTrackMapping);
guidToTrackMappings[guidToTrackMappingIndex] = guidToTrackMapping;
guidToTrackMappingIndex++;
}
ea.RemovedItems = guidToTrackMappings;
this.OnTracksInQueueChanged(ea);
}
private void OnPlayqueueChanged(object sender, PlayqueueChangedEventArgs e)
{
if (e.RemovedItems != null)
{
foreach (var oldItem in e.RemovedItems)
{
var guid = oldItem.Guid;
this.PlayQueueItems.Remove(this.PlayQueueItems.Single(o => o.Guid == guid));
}
}
if (e.AddedItems != null)
{
foreach (GuidToTrackMapping newItem in e.AddedItems)
{
this.PlayQueueItems.Add(this._trackViewModelFactory.Create(newItem.Guid, newItem.Track, this._pageSwitchingService));
}
}
// Hack : we want to make sure the converter Will be re-evaluated, so the easiest way is to trigger a propery changed.
OnPropertyChanged(PlayQueueItemsPropertyName);
}
private void OnTracksInQueueChanged(PlayqueueChangedEventArgs eventArgs)
{
if (eventArgs == null)
{
throw new ArgumentNullException("eventArgs");
}
SerializePlayqueue();
if (PlayqueueChanged != null)
{
PlayqueueChanged(this, eventArgs);
}
}
public void RemoveTracksFromQueue(IEnumerable<Guid> tracksToRemove)
{
// If not using an array, an Invalid Operation Exception will be thrown : something about Movenext, maybe the enumerator is not correctly implemented.
var trackToRemoveArray = tracksToRemove.ToArray();
PlayqueueChangedEventArgs ea = new PlayqueueChangedEventArgs();
var guidToTrackMappings = new GuidToTrackMapping[trackToRemoveArray.Length];
int guidToTrackMappingIndex = 0;
foreach (var guid in trackToRemoveArray)
{
var guidToTrackMapping = _tracksToGuidMapping.Single(o => o.Guid == guid);
_tracksToGuidMapping.Remove(guidToTrackMapping);
guidToTrackMappings[guidToTrackMappingIndex] = guidToTrackMapping;
guidToTrackMappingIndex++;
}
ea.RemovedItems = guidToTrackMappings;
this.OnTracksInQueueChanged(ea);
}
