eu.future.earth.gwt.client.date.month.MonthPanelDropController Maven / Gradle / Ivy

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The Gwt Calendar UI

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/*
 * Copyright 2007 Future Earth, [email protected]
 *
 * Licensed under the Apache License, Version 2.0 (the "License"); you may not
 * use this file except in compliance with the License. You may obtain a copy of
 * the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
 * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
 * License for the specific language governing permissions and limitations under
 * the License.
 */

package eu.future.earth.gwt.client.date.month;

import com.allen_sauer.gwt.dnd.client.DragContext;
import com.allen_sauer.gwt.dnd.client.VetoDragException;
import com.allen_sauer.gwt.dnd.client.drop.AbstractDropController;

import eu.future.earth.gwt.client.date.EventPanel;

/**
 * DropController which allows a widget to be dropped on a SimplePanel drop target when the drop target does not yet have a child widget.
 */
public class MonthPanelDropController extends AbstractDropController {

	public MonthPanelDropController(MonthPanelDayPanel newDropTarget) {
		super(newDropTarget);
	}

	@SuppressWarnings("unchecked")
	public void onDrop(DragContext context) {
		final MonthPanelDayPanel dropTarget = (MonthPanelDayPanel) getDropTarget();
		final EventPanel toMove =(EventPanel) context.draggable;
//		if(!dropTarget.isDay(toMove.getData())){
			dropTarget.addEventByDrop(toMove);
//		} else {
			//Edit ?
//		}
	    super.onDrop(context);
	}


	  @SuppressWarnings("unchecked")
	public void onPreviewDrop(DragContext context) throws VetoDragException {
		  final MonthPanelDayPanel dropTarget = (MonthPanelDayPanel) getDropTarget();
			final EventPanel toMove =(EventPanel) context.draggable;
			if(dropTarget.isDay(toMove.getValue())){
			      throw new VetoDragException();
			}

		    super.onPreviewDrop(context);

	}
}