public abstract class AbstractPositioningDropController extends AbstractDropController
DropController which allows a draggable widget to be placed at valid positions
(locations) on the drop target, such as AbsolutePanel,
VerticalPanel or
HorizontalPanel. Which positions are valid is determined
by the implementing subclass.| Constructor and Description |
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AbstractPositioningDropController(com.google.gwt.user.client.ui.Panel dropTarget)
Constructor.
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getDropTarget, onDrop, onEnter, onLeave, onMove, onPreviewDrop