/*
* Copyright 2009 Prime Technology.
*
* 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.renderkit;
import java.io.IOException;
import java.util.ListIterator;
import javax.faces.component.UIComponent;
import javax.faces.component.UIViewRoot;
import javax.faces.context.FacesContext;
import javax.faces.context.ResponseWriter;
import javax.faces.render.Renderer;
import org.primefaces.resource.ResourceUtils;
/**
* Temporary Custom HeadRenderer to fix an issue with Mojarra-2.0.2 that causes queued resources to be rendered after
* resources defined by page author making it hard to override default styles of components for skinning
*/
public class HeadRenderer extends Renderer {
@Override
public void encodeBegin(FacesContext context, UIComponent component) throws IOException {
ResponseWriter writer = context.getResponseWriter();
writer.startElement("head", component);
//Skin
String skin = context.getExternalContext().getInitParameter("primefaces.skin");
if(skin == null) {
skin = "sam"; //default
}
if(!skin.equalsIgnoreCase("none")) {
String path = "/skins/" + skin + "/skin.css";
writer.startElement("link", null);
writer.writeAttribute("rel", "stylesheet", null);
writer.writeAttribute("type", "text/css", null);
writer.writeAttribute("href", ResourceUtils.getResourceURL(context, path), null);
writer.endElement("link");
}
//Resources
UIViewRoot viewRoot = context.getViewRoot();
ListIterator<UIComponent> iter = (viewRoot.getComponentResources(context, "head")).listIterator();
while (iter.hasNext()) {
UIComponent resource = (UIComponent)iter.next();
resource.encodeAll(context);
}
}
@Override
public void encodeChildren(FacesContext context, UIComponent component) throws IOException {
//no-op
}
@Override
public void encodeEnd(FacesContext context, UIComponent component) throws IOException {
ResponseWriter writer = context.getResponseWriter();
writer.endElement("head");
}
}