org.primefaces.mobile.renderkit.MobileRenderKit Maven / Gradle / Ivy

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PrimeFaces is one of the most popular UI libraries in Java EE Ecosystem and widely used by software companies, world renowned brands, banks, financial institutions, insurance companies, universities and more.
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/**
 * Copyright 2009-2018 PrimeTek.
 *
 * 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.primefaces.mobile.renderkit;

import java.io.OutputStream;
import java.io.Writer;
import java.util.Collections;
import java.util.HashMap;
import java.util.Iterator;
import java.util.Map;
import java.util.Set;
import java.util.concurrent.ConcurrentHashMap;
import javax.faces.FactoryFinder;
import javax.faces.context.FacesContext;
import javax.faces.context.ResponseStream;
import javax.faces.context.ResponseWriter;
import javax.faces.render.ClientBehaviorRenderer;
import javax.faces.render.RenderKit;
import javax.faces.render.RenderKitFactory;
import javax.faces.render.Renderer;
import javax.faces.render.ResponseStateManager;

public class MobileRenderKit extends RenderKit {

    public final static String RENDER_KIT_ID = "PRIMEFACES_MOBILE";

    private RenderKit defaultRenderKit = null;

    private ConcurrentHashMap> rendererFamilies;

    public MobileRenderKit() {
        rendererFamilies = new ConcurrentHashMap>();
    }

    @Override
    public void addRenderer(String family, String rendererType, Renderer renderer) {
        HashMap renderers = rendererFamilies.get(family);
        if (renderers == null) {
            renderers = new HashMap();
            rendererFamilies.put(family, renderers);
        }

        renderers.put(rendererType, renderer);
    }

    @Override
    public Renderer getRenderer(String family, String rendererType) {
        Renderer renderer = null;
        HashMap renderers = rendererFamilies.get(family);

        //Look in our renderers first
        if (renderers != null) {
            renderer = renderers.get(rendererType);
        }

        //Then default renderers
        if (renderer == null) {
            renderer = getDefaultRenderKit().getRenderer(family, rendererType);
        }

        return renderer;
    }

    @Override
    public Iterator getRendererTypes(String componentFamily) {
        Map family = rendererFamilies.get(componentFamily);

        if (family != null) {
            return family.keySet().iterator();
        }
        else {
            Set empty = Collections.emptySet();
            return empty.iterator();
        }
    }

    @Override
    public void addClientBehaviorRenderer(String type, ClientBehaviorRenderer renderer) {
        getDefaultRenderKit().addClientBehaviorRenderer(type, renderer);
    }

    @Override
    public ClientBehaviorRenderer getClientBehaviorRenderer(String type) {
        return getDefaultRenderKit().getClientBehaviorRenderer(type);
    }

    @Override
    public Iterator getClientBehaviorRendererTypes() {
        return getDefaultRenderKit().getClientBehaviorRendererTypes();
    }

    @Override
    public Iterator getComponentFamilies() {
        return rendererFamilies.keySet().iterator();
    }

    @Override
    public ResponseStateManager getResponseStateManager() {
        return getDefaultRenderKit().getResponseStateManager();
    }

    @Override
    public ResponseWriter createResponseWriter(Writer writer, String contentTypeList, String encoding) {
        return getDefaultRenderKit().createResponseWriter(writer, contentTypeList, encoding);
    }

    @Override
    public ResponseStream createResponseStream(OutputStream out) {
        return getDefaultRenderKit().createResponseStream(out);
    }

    private RenderKit getDefaultRenderKit() {
        if (defaultRenderKit == null) {
            RenderKitFactory renderKitFactory = (RenderKitFactory) FactoryFinder.getFactory(FactoryFinder.RENDER_KIT_FACTORY);
            FacesContext facesContext = FacesContext.getCurrentInstance();

            defaultRenderKit = renderKitFactory.getRenderKit(facesContext, RenderKitFactory.HTML_BASIC_RENDER_KIT);
        }

        return defaultRenderKit;
    }
}