ThumbnailRenderer.java

/**
 *  Copyright 2014-2017 Riccardo Massera (TheCoder4.Eu) and Stephan Rauh (http://www.beyondjava.net).
 *
 *  This file is part of BootsFaces.
 *
* 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 net.bootsfaces.component.thumbnail;

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 net.bootsfaces.render.CoreRenderer;
import net.bootsfaces.render.Responsive;
import net.bootsfaces.render.Tooltip;

/** This class generates the HTML code of <b:thumbnail />. */
@FacesRenderer(componentFamily = "net.bootsfaces.component", rendererType = "net.bootsfaces.component.thumbnail.Thumbnail")
public class ThumbnailRenderer extends CoreRenderer {

	/**
	 * This methods generates the HTML code of the current b:thumbnail.
	* <code>encodeBegin</code> generates the start of the component. After the, the JSF framework calls <code>encodeChildren()</code>
	* to generate the HTML code between the beginning and the end of the component. For instance, in the case of a panel component
	* the content of the panel is generated by <code>encodeChildren()</code>. After that, <code>encodeEnd()</code> is called
	* to generate the rest of the HTML code.
	 * @param context the FacesContext.
	 * @param component the current b:thumbnail.
	 * @throws IOException thrown if something goes wrong when writing the HTML code.
	 */
	@Override
	public void encodeBegin(FacesContext context, UIComponent component) throws IOException {
	    if (!component.isRendered()) {
	        return;
	    }
		Thumbnail thumbnail = (Thumbnail) component;
		ResponseWriter rw = context.getResponseWriter();
		String clientId = thumbnail.getClientId();

		Tooltip.generateTooltip(context, thumbnail, rw);

                beginResponsiveWrapper(component, rw);
                
                rw.startElement("div", thumbnail);
                rw.writeAttribute("id", clientId, "id");
                Tooltip.generateTooltip(context, thumbnail, rw);
		String style = thumbnail.getStyle();
		if (null != style) {
			rw.writeAttribute("style", style, null);
		}
		String styleClass = thumbnail.getStyleClass();
		if (null == styleClass)
			styleClass = "thumbnail";
		else
			styleClass = "thumbnail " + styleClass;

		rw.writeAttribute("class",  styleClass, "class");
	}

	/**
	 * This methods generates the HTML code of the current b:thumbnail.
	* <code>encodeBegin</code> generates the start of the component. After the, the JSF framework calls <code>encodeChildren()</code>
	* to generate the HTML code between the beginning and the end of the component. For instance, in the case of a panel component
	* the content of the panel is generated by <code>encodeChildren()</code>. After that, <code>encodeEnd()</code> is called
	* to generate the rest of the HTML code.
	 * @param context the FacesContext.
	 * @param component the current b:thumbnail.
	 * @throws IOException thrown if something goes wrong when writing the HTML code.
	 */
	@Override
	public void encodeEnd(FacesContext context, UIComponent component) throws IOException {
	    if (!component.isRendered()) {
	        return;
	    }
		
            Thumbnail thumbnail = (Thumbnail) component;
            ResponseWriter rw = context.getResponseWriter();
            UIComponent capt;
            capt = thumbnail.getFacet("caption");
            if (capt != null ) {
                rw.startElement("div", thumbnail);
                rw.writeAttribute("class", "caption", "class");
                capt.encodeAll(context);
                rw.endElement("div");
            }
            rw.endElement("div");
            Tooltip.activateTooltips(context, thumbnail);
            
            endResponsiveWrapper(component, rw);
	}
}