private void mediaState_NrItemsInStateChanged(object sender, EventArgs e)
{
MediaStateCollectionView.EnterReadLock();
try
{
NrPages = MediaStateCollectionView.Count();
MediaItem selectedItem;
int index = MediaStateCollectionView.getSelectedItem_RLock(out selectedItem);
if (index != -1 && (index + 1) != CurrentPage)
{
CurrentPage = index + 1;
}
}
finally
{
MediaStateCollectionView.ExitReadLock();
}
}
void initialize(IEventAggregator eventAggregator)
{
IsVisible = false;
IsEnabled = true;
NrPages = 0;
CurrentPage = null;
IsPagingEnabled = false;
EventAggregator = eventAggregator;
NextPageCommand = new Command(() =>
{
MediaStateCollectionView.EnterWriteLock();
try
{
int nrItems = MediaStateCollectionView.Count();
if (nrItems > 0)
{
MediaItem selectedItem;
int index = MediaStateCollectionView.getSelectedItem_RLock(out selectedItem);
if (selectedItem != null)
{
if (index + 1 < nrItems)
{
MediaStateCollectionView.selectExclusive_WLock(MediaStateCollectionView.ElementAt(index + 1).Item);
}
}
}
}
finally
{
MediaStateCollectionView.ExitWriteLock();
}
});
PrevPageCommand = new Command(() =>
{
MediaStateCollectionView.EnterWriteLock();
try
{
int nrItems = MediaStateCollectionView.Count();
if (nrItems > 0)
{
MediaItem selectedItem;
int index = MediaStateCollectionView.getSelectedItem_RLock(out selectedItem);
if (selectedItem != null)
{
if (index - 1 >= 0)
{
MediaStateCollectionView.selectExclusive_WLock(MediaStateCollectionView.ElementAt(index - 1).Item);
}
}
}
}
finally
{
MediaStateCollectionView.ExitWriteLock();
}
});
FirstPageCommand = new Command(() =>
{
MediaStateCollectionView.EnterWriteLock();
try
{
if (MediaStateCollectionView.Count() > 0)
{
MediaStateCollectionView.selectExclusive_WLock(MediaStateCollectionView.ElementAt(0).Item);
}
}
finally
{
MediaStateCollectionView.ExitWriteLock();
}
});
LastPageCommand = new Command(() =>
{
MediaStateCollectionView.EnterWriteLock();
try
{
if (MediaStateCollectionView.Count() > 0)
{
int lastIndex = MediaStateCollectionView.Count() - 1;
MediaStateCollectionView.selectExclusive_WLock(MediaStateCollectionView.ElementAt(lastIndex).Item);
}
}
finally
{
MediaStateCollectionView.ExitWriteLock();
}
});
BrowseLocationCommand = new Command <SelectableMediaItem>((selectableItem) =>
{
MediaItem item = selectableItem.Item;
String location = FileUtils.getPathWithoutFileName(item.Location);
EventAggregator.GetEvent <MediaBrowserPathChangedEvent>().Publish(location);
});
OpenLocationCommand = new Command <SelectableMediaItem>((selectableItem) =>
{
MediaItem item = selectableItem.Item;
String location = FileUtils.getPathWithoutFileName(item.Location);
Process.Start(location);
});
DeleteCommand = new Command <SelectableMediaItem>((selectableItem) =>
{
if (MessageBox.Show("Delete:\n\n" + selectableItem.Item.Location, "Delete file", MessageBoxButton.YesNo, MessageBoxImage.Question, MessageBoxResult.No) == MessageBoxResult.Yes)
{
List <MediaFileItem> item = new List <MediaFileItem>();
item.Add(selectableItem.Item as MediaFileItem);
CancellationTokenSource tokenSource = new CancellationTokenSource();
(MediaStateCollectionView.MediaState as MediaFileState).delete(item, tokenSource.Token);
}
});
MediaStateCollectionView.NrItemsInStateChanged += mediaState_NrItemsInStateChanged;
MediaStateCollectionView.ItemResorted += mediaState_ItemResorted;
}