Package com.liferay.faces.alloy.component.body

Source Code of com.liferay.faces.alloy.component.body.BodyRenderer

/**
* Copyright (c) 2000-2014 Liferay, Inc. All rights reserved.
*
* This library is free software; you can redistribute it and/or modify it under
* the terms of the GNU Lesser General Public License as published by the Free
* Software Foundation; either version 2.1 of the License, or (at your option)
* any later version.
*
* This library is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
* FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more
* details.
*/
package com.liferay.faces.alloy.component.body;

import java.io.IOException;

import javax.faces.component.UIComponent;
import javax.faces.context.FacesContext;
import javax.faces.context.ResponseWriter;
import javax.faces.render.FacesRenderer;
import javax.faces.render.Renderer;

import com.liferay.faces.util.client.BrowserSniffer;
import com.liferay.faces.util.client.BrowserSnifferFactory;
import com.liferay.faces.util.factory.FactoryExtensionFinder;
import com.liferay.faces.util.logging.Logger;
import com.liferay.faces.util.logging.LoggerFactory;
import com.liferay.faces.util.product.Product;
import com.liferay.faces.util.product.ProductConstants;
import com.liferay.faces.util.product.ProductMap;


/**
* @author  Neil Griffin
*/
@FacesRenderer(componentFamily = Body.COMPONENT_FAMILY, rendererType = Body.RENDERER_TYPE)
public class BodyRenderer extends BodyRendererBase {

  // Private Constants
  private static final boolean LIFERAY_FACES_BRIDGE_DETECTED = ProductMap.getInstance().get(
      ProductConstants.LIFERAY_FACES_BRIDGE).isDetected();

  // Logger
  private static final Logger logger = LoggerFactory.getLogger(BodyRenderer.class);

  // Private Data Members
  private Renderer delegateRenderer;

  public BodyRenderer() {
    String delegateBodyRendererFQCN = "com.sun.faces.renderkit.html_basic.BodyRenderer";

    if (LIFERAY_FACES_BRIDGE_DETECTED) {
      delegateBodyRendererFQCN = "com.liferay.faces.bridge.renderkit.html_basic.BodyRendererBridgeImpl";
    }
    else {
      Product jsf = ProductMap.getInstance().get(ProductConstants.JSF);

      if ((jsf != null) && ProductConstants.MYFACES.equals(jsf.getTitle())) {
        delegateBodyRendererFQCN = "org.apache.myfaces.renderkit.html.HtmlBodyRenderer";
      }
    }

    try {
      Class<?> delegateBodyRendererClass = Class.forName(delegateBodyRendererFQCN);
      delegateRenderer = (Renderer) delegateBodyRendererClass.newInstance();
    }
    catch (Exception e) {
      logger.error(e);
    }
  }

  @Override
  public void encodeEnd(FacesContext facesContext, UIComponent uiComponent) throws IOException {

    if (LIFERAY_FACES_BRIDGE_DETECTED) {
      super.encodeEnd(facesContext, uiComponent);
    }
    else {
      BrowserSnifferFactory browserSnifferFactory = (BrowserSnifferFactory) FactoryExtensionFinder.getFactory(
          BrowserSnifferFactory.class);
      BrowserSniffer browserSniffer = browserSnifferFactory.getBrowserSniffer(facesContext.getExternalContext());
      boolean browserIE = browserSniffer.isIe();
      float browserMajorVersion = browserSniffer.getMajorVersion();
      ResponseWriter responseWriter = facesContext.getResponseWriter();
      BodyResponseWriter delegationResponseWriter = new BodyResponseWriter(responseWriter, browserIE,
          browserMajorVersion);
      super.encodeEnd(facesContext, uiComponent, delegationResponseWriter);
    }
  }

  @Override
  public String getDelegateComponentFamily() {
    return Body.DELEGATE_COMPONENT_FAMILY;
  }

  @Override
  public Renderer getDelegateRenderer(FacesContext facesContext) {
    return delegateRenderer;
  }

  @Override
  public String getDelegateRendererType() {
    return Body.DELEGATE_RENDERER_TYPE;
  }
}
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