org.primefaces.component.link.LinkRenderer Maven / Gradle / Ivy
/*
* 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.link;
import java.io.IOException;
import javax.faces.component.UIComponent;
import javax.faces.context.FacesContext;
import javax.faces.context.ResponseWriter;
import org.primefaces.renderkit.OutcomeTargetRenderer;
import org.primefaces.util.HTML;
public class LinkRenderer extends OutcomeTargetRenderer {
@Override
public void encodeEnd(FacesContext context, UIComponent component) throws IOException {
ResponseWriter writer = context.getResponseWriter();
Link link = (Link) component;
boolean shouldWriteId = shouldWriteId(link);
boolean disabled = link.isDisabled();
String style = link.getStyle();
String defaultStyleClass = disabled ? Link.DISABLED_STYLE_CLASS: Link.STYLE_CLASS;
String styleClass = link.getStyleClass();
styleClass = (styleClass == null) ? defaultStyleClass : defaultStyleClass + " " + styleClass;
if(disabled) {
writer.startElement("span", link);
if(shouldWriteId) {
writer.writeAttribute("id", link.getClientId(context), "id");
}
writer.writeAttribute("class", styleClass, "styleClass");
if(style != null) {
writer.writeAttribute("style", style, "style");
}
renderContent(context, link);
writer.endElement("span");
}
else {
String targetURL = getTargetURL(context, link);
if(targetURL == null) {
targetURL = "#";
}
writer.startElement("a", link);
if(shouldWriteId) {
writer.writeAttribute("id", link.getClientId(context), "id");
}
writer.writeAttribute("href", targetURL, null);
writer.writeAttribute("class", styleClass, "styleClass");
renderPassThruAttributes(context, link, HTML.LINK_ATTRS_WITHOUT_EVENTS);
renderDomEvents(context, link, HTML.COMMON_EVENTS);
renderContent(context, link);
writer.endElement("a");
}
}
protected void renderContent(FacesContext context, Link link) throws IOException {
ResponseWriter writer = context.getResponseWriter();
Object value = link.getValue();
if(value != null) {
if(link.isEscape())
writer.writeText(value, "value");
else
writer.write(value.toString());
}
else {
renderChildren(context, link);
}
}
@Override
public void encodeChildren(FacesContext context, UIComponent component) throws IOException {
//Do nothing
}
@Override
public boolean getRendersChildren() {
return true;
}
}