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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 2000-2016 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.Map;

import com.google.gwt.user.client.ui.HTML;
import com.vaadin.client.WidgetUtil;

public class VFlash extends HTML {

    public static final String CLASSNAME = "v-flash";

    protected String source;
    protected String altText;
    protected String classId;
    protected String codebase;
    protected String codetype;
    protected String standby;
    protected String archive;
    protected Map embedParams = new HashMap<>();
    protected boolean needsRebuild = false;
    protected String width;
    protected String height;

    public VFlash() {
        setStyleName(CLASSNAME);
    }

    public void setSource(String source) {
        if (this.source != source) {
            this.source = source;
            needsRebuild = true;
        }
    }

    public void setAlternateText(String altText) {
        if (this.altText != altText) {
            this.altText = altText;
            needsRebuild = true;
        }
    }

    public void setClassId(String classId) {
        if (this.classId != classId) {
            this.classId = classId;
            needsRebuild = true;
        }
    }

    public void setCodebase(String codebase) {
        if (this.codebase != codebase) {
            this.codebase = codebase;
            needsRebuild = true;
        }
    }

    public void setCodetype(String codetype) {
        if (this.codetype != codetype) {
            this.codetype = codetype;
            needsRebuild = true;
        }
    }

    public void setStandby(String standby) {
        if (this.standby != standby) {
            this.standby = standby;
            needsRebuild = true;
        }
    }

    public void setArchive(String archive) {
        if (this.archive != archive) {
            this.archive = archive;
            needsRebuild = true;
        }
    }

    /**
     * Call this after changing values of widget. It will rebuild embedding
     * structure if needed.
     */
    public void rebuildIfNeeded() {
        if (needsRebuild) {
            needsRebuild = false;
            this.setHTML(createFlashEmbed());
        }
    }

    @Override
    public void setWidth(String width) {
        // super.setWidth(height);

        if (this.width != width) {
            this.width = width;
            needsRebuild = true;
        }
    }

    @Override
    public void setHeight(String height) {
        // super.setHeight(height);

        if (this.height != height) {
            this.height = height;
            needsRebuild = true;
        }
    }

    public void setEmbedParams(Map params) {
        if (params == null) {
            if (!embedParams.isEmpty()) {
                embedParams.clear();
                needsRebuild = true;
            }
            return;
        }

        if (!embedParams.equals(params)) {
            embedParams = new HashMap<>(params);
            needsRebuild = true;
        }
    }

    protected String createFlashEmbed() {
        /*
         * 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();
    }

}