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/*
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
 *
 * Copyright (c) 2007-2018 Oracle and/or its affiliates. All rights reserved.
 *
 * The contents of this file are subject to the terms of either the GNU
 * General Public License Version 2 only ("GPL") or the Common Development
 * and Distribution License("CDDL") (collectively, the "License").  You
 * may not use this file except in compliance with the License.  You can
 * obtain a copy of the License at
 * https://oss.oracle.com/licenses/CDDL+GPL-1.1
 * or LICENSE.txt.  See the License for the specific
 * language governing permissions and limitations under the License.
 *
 * When distributing the software, include this License Header Notice in each
 * file and include the License file at LICENSE.txt.
 *
 * GPL Classpath Exception:
 * Oracle designates this particular file as subject to the "Classpath"
 * exception as provided by Oracle in the GPL Version 2 section of the License
 * file that accompanied this code.
 *
 * Modifications:
 * If applicable, add the following below the License Header, with the fields
 * enclosed by brackets [] replaced by your own identifying information:
 * "Portions Copyright [year] [name of copyright owner]"
 *
 * Contributor(s):
 * If you wish your version of this file to be governed by only the CDDL or
 * only the GPL Version 2, indicate your decision by adding "[Contributor]
 * elects to include this software in this distribution under the [CDDL or GPL
 * Version 2] license."  If you don't indicate a single choice of license, a
 * recipient has the option to distribute your version of this file under
 * either the CDDL, the GPL Version 2 or to extend the choice of license to
 * its licensees as provided above.  However, if you add GPL Version 2 code
 * and therefore, elected the GPL Version 2 license, then the option applies
 * only if the new code is made subject to such option by the copyright
 * holder.
 */

package com.sun.webui.jsf.renderkit.html;

import com.sun.faces.annotation.Renderer;
import java.io.IOException;
import javax.faces.FacesException;
import javax.faces.component.UIComponent;
import javax.faces.context.FacesContext;
import javax.faces.context.ResponseWriter;
import com.sun.webui.jsf.component.ThemeLinks;
import com.sun.webui.theme.Theme;
import com.sun.webui.jsf.util.MessageUtil;
import com.sun.webui.jsf.util.JavaScriptUtilities;
import com.sun.webui.jsf.util.RenderingUtilities;
import com.sun.webui.jsf.util.ThemeUtilities;

/**
 * Renderer for a {@link Theme} component.
 */
@Renderer(@Renderer.Renders(componentFamily = "com.sun.webui.jsf.ThemeLinks"))
public class ThemeLinksRenderer extends javax.faces.render.Renderer {

    @Override
    public void encodeEnd(FacesContext context, UIComponent component)
            throws IOException {
        return;
    }

    @Override
    public void encodeBegin(FacesContext context, UIComponent component) throws IOException {
        if (!(component instanceof ThemeLinks)) {
            Object[] params = {component.toString(),
                this.getClass().getName(),
                ThemeLinks.class.getName()
            };
            String message = MessageUtil.getMessage("com.sun.webui.jsf.resources.LogMessages", //NOI18N
                    "Renderer.component", params);              //NOI18N
            throw new FacesException(message);
        }

        ThemeLinks themeLinks = (ThemeLinks) component;
        ResponseWriter writer = context.getResponseWriter();

        // Link and Scripts
        Theme theme = ThemeUtilities.getTheme(context);
        if (themeLinks.isStyleSheetInline()) {
            RenderingUtilities.renderStyleSheetInline(themeLinks, theme, context, writer);
        } else if (themeLinks.isStyleSheetLink()) {
            RenderingUtilities.renderStyleSheetLink(themeLinks, theme, context, writer);
        }

        // Do not render any JavaScript.
        if (!themeLinks.isJavaScript()) {
            return;
        }

        // Render Dojo config.
        JavaScriptUtilities.renderJavaScript(component, writer,
                JavaScriptUtilities.getDojoConfig(themeLinks.isDebug(),
                themeLinks.isParseWidgets()));

        // Render Dojo include.
        JavaScriptUtilities.renderDojoInclude(component, writer);

        // Render JSON include.
        JavaScriptUtilities.renderJsonInclude(component, writer);

        // Render Prototype include before JSF Extensions.
        JavaScriptUtilities.renderPrototypeInclude(component, writer);

        // Render JSF Extensions include.
        JavaScriptUtilities.renderJsfxInclude(component, writer);

        // Render module config after including dojo.
        JavaScriptUtilities.renderJavaScript(component, writer,
                JavaScriptUtilities.getModuleConfig(themeLinks.isDebug()));

        // Render global include.
        JavaScriptUtilities.renderGlobalInclude(component, writer);
    }

    @Override
    public boolean getRendersChildren() {
        return true;
    }

    @Override
    public void encodeChildren(FacesContext context, UIComponent component) throws IOException {
        return;
    }
}