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Vaadin is a web application framework for Rich Internet Applications (RIA). Vaadin enables easy development and maintenance of fast and secure rich web applications with a stunning look and feel and a wide browser support. It features a server-side architecture with the majority of the logic running on the server. Ajax technology is used at the browser-side to ensure a rich and interactive user experience.

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/*
 * Copyright 2011 Google 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 com.google.gwt.user.client.impl;

import com.google.gwt.dom.client.BrowserEvents;
import com.google.gwt.dom.client.Element;

/**
 * IE9 implementation of {@link com.google.gwt.user.client.impl.DOMImplStandardBase}.
 */
class DOMImplIE9 extends DOMImplStandardBase {

  @Override
  protected void sinkBitlessEventImpl(Element elem, String eventTypeName) {
    super.sinkBitlessEventImpl(elem, eventTypeName);

    if (BrowserEvents.DRAGOVER.equals(eventTypeName)) {
      /*
       * In IE, we have to sink dragenter with dragover in order to make an
       * element a drop target.
       */
      super.sinkBitlessEventImpl(elem, BrowserEvents.DRAGENTER);
    }
  }
}