public override void UpdateItems()
{
// evaluate immediate to allow sql connections to close
places = LoadPlaceItems().ToArray();
folders = LoadFolderItems().ToArray();
items.Clear();
items.Add(new BrowseHistoryItem());
items.Add(new BrowseBookmarkItem());
items.AddRange(folders.OfType <Item> ());
items.AddRange(PlacesWithParent.OfType <Item> ());
}
public override IEnumerable <Item> ChildrenOfItem(Item item)
{
if (IsFirefox(item))
{
yield return(new BrowseHistoryItem());
yield return(new BrowseBookmarkItem());
}
else if (item is BrowseBookmarkItem || item is BrowseHistoryItem)
{
foreach (FolderItem folder in folders)
{
yield return(folder);
}
if (item is BrowseBookmarkItem)
{
foreach (PlaceItem place in PlacesWithParent)
{
yield return(place);
}
}
else
{
foreach (PlaceItem place in places)
{
yield return(place);
}
}
}
else if (item is FolderItem)
{
FolderItem parent = (FolderItem)item;
foreach (FolderItem folder in folders.Where(folder => folder.ParentId == parent.Id))
{
yield return(folder);
}
foreach (PlaceItem place in PlacesWithParent.Where(place => place.ParentId == parent.Id))
{
yield return(place);
}
}
}