DropEffects IDropTarget.DragOver(HtmlMouseEvent e)
{
hit = treeView.Hit(e);
clientY = e.ClientY;
if (hit != null)
{
RootNode target = hit.Nodes.List[hit.Index] as RootNode;
if (target == null)
{
return(DropEffects.None);
}
if (target == webNode.RootNode)
{
return(DropEffects.Copy);
}
if (2 * (clientY - hit.Rect.Top) < hit.Rect.Height)
{
if (hit.Index > 0 && hit.Nodes.List[hit.Index - 1] == webNode)
{
return(DropEffects.Copy);
}
}
else if (hit.Index < hit.Nodes.List.Count - 1 && hit.Nodes.List[hit.Index + 1] == webNode)
{
return(DropEffects.Copy);
}
}
return(canMove ? DropEffects.Move | DropEffects.Copy : DropEffects.Copy);
}
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 MainPane(App app)
{
Data = app;
TreeView.AdviseContextMenu(TreeView_ContextMenu);
TreeView.AdviseDrag(delegate(HtmlMouseEvent e)
{
TreeViewHit hit = TreeView.Hit(e);
if (hit != null)
{
object node = hit.Nodes.List[hit.Index];
FolderNode folder = node as FolderNode;
if (folder != null)
{
return(new ListItemsDragSource(new ListItem[] { folder.Item }));
}
WebNode web = node as WebNode;
if (web != null)
{
return(new WebNodeDragSource(web));
}
}
return(null);
});
TreeView.AdviseDrop(delegate(object dataObject)
{
IList <ListItem> listItems = dataObject as IList <ListItem>;
if (listItems != null)
{
return(new ListItemsNodeDropTarget(TreeView, listItems));
}
WebNode web = dataObject as WebNode;
return(web != null ? new WebNodeDragTarget(TreeView, web) : null);
});
if (SupportedHtml5Features.File)
{
PostAdvise(
delegate()
{
return(Element.AdviseDrop(null, null));
});
TreeViewFileDropTarget fileDropTarget = new TreeViewFileDropTarget(TreeView);
}
TreeView.AdviseKeyDown(
delegate(HtmlKeyboardEvent e)
{
if (e.KeyCode == KeyCode.Delete)
{
FolderNode folder = TreeView.Selection.Data as FolderNode;
if (folder != null)
{
NodeUtil.DeleteFolder(folder);
}
}
});
}
