001/*
002 * #%L
003 * GwtMaterial
004 * %%
005 * Copyright (C) 2015 - 2017 GwtMaterialDesign
006 * %%
007 * Licensed under the Apache License, Version 2.0 (the "License");
008 * you may not use this file except in compliance with the License.
009 * You may obtain a copy of the License at
010 * 
011 *      http://www.apache.org/licenses/LICENSE-2.0
012 * 
013 * Unless required by applicable law or agreed to in writing, software
014 * distributed under the License is distributed on an "AS IS" BASIS,
015 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
016 * See the License for the specific language governing permissions and
017 * limitations under the License.
018 * #L%
019 */
020package gwt.material.design.client.base;
021
022import com.google.gwt.event.shared.HandlerRegistration;
023import gwt.material.design.client.events.DragEndEvent;
024import gwt.material.design.client.events.DragMoveEvent;
025import gwt.material.design.client.events.DragOverEvent;
026import gwt.material.design.client.events.DragStartEvent;
027
028public interface HasDraggableHandlers {
029
030    /**
031     * Add a drag start handler to target element
032     */
033    HandlerRegistration addDragStartHandler(DragStartEvent.DragStartHandler handler);
034
035    /**
036     * Add a drag move handler to target element
037     */
038    HandlerRegistration addDragMoveHandler(DragMoveEvent.DragMoveHandler handler);
039
040    /**
041     * Add a drag end handler to target element
042     */
043    HandlerRegistration addDragEndHandler(DragEndEvent.DragEndHandler handler);
044
045    /**
046     * Add a drag over handler to the target element
047     */
048    HandlerRegistration addDragOverHandler(final DragOverEvent.DragOverHandler handler);
049}