public void RefreshLibraryBrowserNode(LibraryBrowserEntity entity, IEnumerable<LibraryBrowserEntity> entities, object userData)
{
//Console.WriteLine("MainWindow - RefreshLibraryBrowserNode - entities.Count: {0}", entities.Count());
Dispatcher.BeginInvoke(DispatcherPriority.Background, new Action(() =>
{
var item = (LibraryTreeViewItem) userData;
foreach (var subentity in entities)
{
var subitem = new LibraryTreeViewItem();
subitem.Entity = subentity;
subitem.Header = subentity;
subitem.HeaderTemplate = FindResource("TreeViewItemTemplate") as DataTemplate;
if (subentity.SubItems.Count > 0)
{
var dummy = new LibraryTreeViewItem();
dummy.IsDummyNode = true;
subitem.Items.Add(dummy);
}
item.Items.Add(subitem);
}
if (_selectedLibraryNode != null)
{
switch (entity.EntityType)
{
case LibraryBrowserEntityType.Artists:
var artistNode = GetLibraryTreeViewItemByArtistName(item.Items, _selectedLibraryNode.Query.ArtistName);
if (artistNode != null)
{
if (_selectedLibraryNode.EntityType == LibraryBrowserEntityType.Artist)
{
artistNode.IsSelected = true;
artistNode.BringIntoView();
_selectedLibraryNode = null;
}
else if (_selectedLibraryNode.EntityType == LibraryBrowserEntityType.ArtistAlbum)
{
artistNode.IsExpanded = true;
artistNode.BringIntoView();
}
}
break;
case LibraryBrowserEntityType.Artist:
var artistAlbumNode = GetLibraryTreeViewItemByAlbumTitle(item.Items, _selectedLibraryNode.Query.AlbumTitle);
if (artistAlbumNode != null)
{
artistAlbumNode.IsSelected = true;
artistAlbumNode.BringIntoView(); //new Rect(0, treeViewLibrary.ScrollViewer.VerticalOffset, 10, 10));
}
_selectedLibraryNode = null;
break;
case LibraryBrowserEntityType.Albums:
var albumNode = GetLibraryTreeViewItemByAlbumTitle(item.Items, _selectedLibraryNode.Query.AlbumTitle);
if (albumNode != null)
{
albumNode.IsSelected = true;
albumNode.BringIntoView();
}
_selectedLibraryNode = null;
break;
}
}
// When calling BringIntoView, the horizontal offset is not always zero.
// This is a workaround, BringIntoView(Rect) doesn't seem to work...
treeViewLibrary.ScrollViewer.ScrollToHorizontalOffset(0);
}));
}
public void RefreshLibraryBrowser(IEnumerable<LibraryBrowserEntity> entities)
{
//Console.WriteLine("MainWindow - RefreshLibraryBrowser - entities.Count: {0}", entities.Count());
Dispatcher.BeginInvoke(DispatcherPriority.Background, new Action(() =>
{
treeViewLibrary.Items.Clear();
foreach (var entity in entities)
{
var item = new LibraryTreeViewItem();
//item.Expanding += (sender, args) => { Console.WriteLine("Expanding"); };
item.Entity = entity;
item.Header = entity;
item.HeaderTemplate = FindResource("TreeViewItemTemplate") as DataTemplate;
if (entity.SubItems.Count > 0)
{
var dummy = new LibraryTreeViewItem();
dummy.IsDummyNode = true;
item.Items.Add(dummy);
}
treeViewLibrary.Items.Add(item);
}
}));
}