DisposeDropController.java

/*
 * Copyright 2011 JBoss Inc 
 *
 * 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 org.jbpm.formbuilder.client.command;

import com.allen_sauer.gwt.dnd.client.DragContext;
import com.allen_sauer.gwt.dnd.client.drop.SimpleDropController;
import com.google.gwt.user.client.ui.Widget;

/**
 * DropController designed to remove a ui component that was dropped on 
 * a not allowed zone.
 */
public class DisposeDropController extends SimpleDropController {

    public DisposeDropController(Widget dropTarget) {
        super(dropTarget);
    }

    @Override
    public void onDrop(DragContext context) {
        Widget widget = context.draggable;
        widget.removeFromParent();
    }
}