A custom drag proxy implementation specific to Ext.panel.Panels. This class +is primarily used internally for the Panel's drag drop implementation, and +should never need to be created directly.
+True to insert a placeholder proxy element +while dragging the panel, false to drag with no proxy (defaults to true). +Most Panels are not absolute positioned and therefore we need to reserve +this space.
+
The Ext.panel.Panel to proxy for
+Configuration options
+Gets the proxy element. This is the element that represents where the +Panel was before we started the drag operation.
+Gets the proxy element. This is the element that represents where the +Panel was before we started the drag operation.
+The proxy's element
+Moves the proxy to a different position in the DOM. This is typically +called while dragging the Panel to keep the proxy sync'd to the Panel's +location.
+The proxy's parent DOM node
+(optional) The sibling node before which the +proxy should be inserted (defaults to the parent's last child if not +specified)
+