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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 2000-2014 Vaadin Ltd.
 * 
 * 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.vaadin.client.ui;

import java.util.HashMap;
import java.util.Iterator;
import java.util.Map;

import com.google.gwt.dom.client.Element;
import com.google.gwt.user.client.DOM;
import com.google.gwt.user.client.Event;
import com.google.gwt.user.client.ui.HTML;
import com.vaadin.client.ApplicationConnection;
import com.vaadin.client.BrowserInfo;
import com.vaadin.client.ComponentConnector;
import com.vaadin.client.ConnectorMap;
import com.vaadin.client.UIDL;
import com.vaadin.client.Util;
import com.vaadin.client.VConsole;
import com.vaadin.client.WidgetUtil;
import com.vaadin.shared.ui.embedded.EmbeddedConstants;

public class VEmbedded extends HTML {
    public static String CLASSNAME = "v-embedded";

    /** For internal use only. May be removed or replaced in the future. */
    public Element browserElement;

    /** For internal use only. May be removed or replaced in the future. */
    public String type;

    /** For internal use only. May be removed or replaced in the future. */
    public String mimetype;

    /** For internal use only. May be removed or replaced in the future. */
    public ApplicationConnection client;

    public VEmbedded() {
        setStyleName(CLASSNAME);
    }

    /**
     * Creates the Object and Embed tags for the Flash plugin so it works
     * cross-browser.
     * 
     * For internal use only. May be removed or replaced in the future.
     * 
     * @param uidl
     *            The UIDL
     * @return Tags concatenated into a string
     */
    public String createFlashEmbed(UIDL uidl) {
        /*
         * To ensure cross-browser compatibility we are using the twice-cooked
         * method to embed flash i.e. we add a OBJECT tag for IE ActiveX and
         * inside it a EMBED for all other browsers.
         */

        StringBuilder html = new StringBuilder();

        // Start the object tag
        html.append("");

        return html.toString();
    }

    /**
     * Returns a map (name -> value) of all parameters in the UIDL.
     * 

     * For internal use only. May be removed or replaced in the future.
     * 
     * @param uidl
     * @return
     */
    public static Map getParameters(UIDL uidl) {
        Map parameters = new HashMap();

        Iterator