DropEffects IDropTarget.DragOver(HtmlMouseEvent e)
{
base.DragOver(e);
if (Feedback == FeedbackMode.None)
{
return(DropEffects.None);
}
object node = HitNode;
if (!Observable.Equals(this.node, node))
{
this.node = node;
dropEffects = DropEffects.None;
if (listItems != null)
{
ListNode list = node as ListNode;
if (list != null)
{
dropEffects = ListItemsDropUtility.DropEffects(listItems, list.RootFolder);
}
else
{
FolderNode folder = node as FolderNode;
if (folder != null)
{
dropEffects = ListItemsDropUtility.DropEffects(listItems, folder);
}
}
}
}
return(dropEffects & DropEffects.Move);
}
DropEffects IDropTarget.DragOver(HtmlMouseEvent e)
{
base.DragOver(e);
ListItem listItem = HitItem as ListItem;
targetFolder = listItem != null ? listItem.Folder : null;
return(targetFolder != null?ListItemsDropUtility.DropEffects(source, targetFolder) : dropEffects);
}
void IDropTarget.Drop(HtmlMouseEvent e, DropEffects dropEffect)
{
try
{
base.Drop(e);
ListItemsDropUtility.Drop(source, targetFolder != null ? targetFolder : itemsPane.Data.FolderItems.ParentFolder);
}
catch (Exception ex)
{
LazyWindow.ShowError(ex);
}
}
void IDropTarget.Drop(HtmlMouseEvent e, DropEffects dropEffect)
{
TreeViewHit hit = base.Drop(e);
if (Feedback != FeedbackMode.None)
{
try
{
object node = hit.Nodes.List[hit.Index];
ListNode list = node as ListNode;
ListItemsDropUtility.Drop(listItems, list != null ? list.RootFolder : node as Folder);
}
catch (Exception ex)
{
LazyWindow.ShowError(ex);
}
}
}
internal ItemsOverviewDropTarget(ItemsPane itemsPane, IList <ListItem> source) : base(itemsPane.Overview)
{
this.itemsPane = itemsPane;
this.source = source;
dropEffects = ListItemsDropUtility.DropEffects(source, itemsPane.Data.FolderItems.ParentFolder);
}
