/*
* Copyright 2009-2014 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.component.outputpanel;
import java.io.IOException;
import javax.faces.component.UIComponent;
import javax.faces.context.FacesContext;
import javax.faces.context.ResponseWriter;
import org.primefaces.renderkit.CoreRenderer;
import org.primefaces.util.ComponentUtils;
import org.primefaces.util.WidgetBuilder;
public class OutputPanelRenderer extends CoreRenderer {
private final static String BLOCK = "div";
private final static String INLINE = "span";
@Override
public void encodeEnd(FacesContext context, UIComponent component) throws IOException {
OutputPanel panel = (OutputPanel) component;
if(panel.isContentLoad(context)) {
renderChildren(context, panel);
}
else {
encodeMarkup(context, panel);
if(panel.isDeferred()) {
encodeScript(context, panel);
}
}
}
public void encodeMarkup(FacesContext context, OutputPanel panel) throws IOException {
ResponseWriter writer = context.getResponseWriter();
String tag = panel.getLayout().equals("block") ? BLOCK : INLINE;
String clientId = panel.getClientId(context);
String style = panel.getStyle();
String styleClass = panel.getStyleClass();
styleClass = (styleClass == null) ? OutputPanel.CONTAINER_CLASS : OutputPanel.CONTAINER_CLASS + " " + styleClass;
writer.startElement(tag, panel);
writer.writeAttribute("id", clientId, "id");
writer.writeAttribute("class", styleClass, "styleClass");
if(style != null)
writer.writeAttribute("style", panel.getStyle(), "style");
if(panel.isDeferred())
renderLoading(context, panel);
else
renderChildren(context, panel);
writer.endElement(tag);
}
protected void encodeScript(FacesContext context, OutputPanel panel) throws IOException {
String clientId = panel.getClientId(context);
WidgetBuilder wb = getWidgetBuilder(context);
wb.initWithDomReady("OutputPanel", panel.resolveWidgetVar(), clientId);
if(panel.isDeferred()) {
String delay = panel.getDelay();
wb.attr("deferred", true)
.attr("deferredMode", panel.getDeferredMode())
.attr("global", panel.isGlobal(), false);
if(!ComponentUtils.isValueBlank(delay) && !delay.equals("none")) {
wb.attr("delay", delay);
}
}
wb.finish();
}
protected void renderLoading(FacesContext context, OutputPanel panel) throws IOException {
ResponseWriter writer = context.getResponseWriter();
writer.startElement("div", null);
writer.writeAttribute("class", OutputPanel.LOADING_CLASS, null);
writer.endElement("div");
}
@Override
public void encodeChildren(FacesContext context, UIComponent component) throws IOException {
//Do nothing
}
@Override
public boolean getRendersChildren() {
return true;
}
}