private static void OnMediaItemsPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
{
MediaItemPlayer mip = d as MediaItemPlayer;
if (!mip.removingMediaItem)
{
Int32 oldValue = mip.SelectedIndex;
Int32 newValue = -1;
if (mip.MediaItems.Count > 0)
{
newValue = 0;
}
if (oldValue == newValue)
{
OnSelectedIndexPropertyChanged(d, new DependencyPropertyChangedEventArgs(SelectedIndexProperty, oldValue, newValue));
}
else
{
mip.SelectedIndex = newValue;
}
}
if (mip.MediaItems != null)
{
mip.MediaItems.CollectionChanged -= mip.MediaItems_CollectionChanged;
mip.MediaItems.CollectionChanged += mip.MediaItems_CollectionChanged;
}
}
private static void OnPositionChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
{
MediaItemPlayer mip = d as MediaItemPlayer;
if (mip.positionUpdatesPart)
{
if (mip.meNowPlaying != null)
{
mip.SetPart();
}
}
}
private static void OnSelectedMediaItemPartIndexPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
{
MediaItemPlayer mip = d as MediaItemPlayer;
if (mip.SelectedMediaItem != null)
{
MediaItemPart selectedMediaItemPart = mip.SelectedMediaItem.Parts[mip.SelectedMediaItemPartIndex];
mip.SelectedMediaItemPart = selectedMediaItemPart;
}
else
{
mip.SelectedMediaItemPart = null;
}
}
private static void OnSelectedIndexPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
{
MediaItemPlayer mip = d as MediaItemPlayer;
if (!mip.removingMediaItem)
{
mip.CanSkipPrevious = false;
mip.CanSkipNext = false;
if (mip.SelectedIndex == -1)
{
mip.SelectedMediaItem = null;
mip.Position = TimeSpan.FromSeconds(0);
return;
}
else
{
MediaItem selectedMediaItem = mip.MediaItems[mip.SelectedIndex];
CancelMediaItemsOperationEventArgs cmioea = new CancelMediaItemsOperationEventArgs(new MediaItem[1] {
selectedMediaItem
});
mip.OnOpeningMediaItem(cmioea);
if (cmioea.Cancel)
{
mip.SkipNext();
return;
}
mip.SelectedMediaItem = selectedMediaItem;
}
}
mip.SetCanSkip();
}
private static void OnPlayStatePropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
{
MediaItemPlayer mip = d as MediaItemPlayer;
mip.OnPlayStateChanged();
}
private static void OnSelectedMediaItemPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
{
MediaItemPlayer npv = d as MediaItemPlayer;
npv.SelectedMediaItemPartIndex = 0;
}
