org.springframework.faces.ui.BaseComponentRenderer Maven / Gradle / Ivy
/*
* Copyright 2004-2008 the original author or authors.
*
* 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.springframework.faces.ui;
import java.io.IOException;
import java.util.HashMap;
import java.util.Map;
import javax.faces.component.UIComponent;
import javax.faces.context.FacesContext;
import javax.faces.context.ResponseWriter;
import javax.faces.render.Renderer;
/**
* Base {@link Renderer} for typical faces components, handling the rendering for common {@link UIComponent} attributes.
*
* @author Jeremy Grelle
*
*/
public abstract class BaseComponentRenderer extends BaseHtmlTagRenderer {
private Map attributeCallbacks;
private RenderAttributeCallback idCallback = new RenderAttributeCallback() {
public void doRender(FacesContext context, ResponseWriter writer, UIComponent component, String attribute,
Object attributeValue, String property) throws IOException {
writer.writeAttribute(attribute, component.getClientId(context), property);
}
};
private RenderAttributeCallback disabledCallback = new RenderAttributeCallback() {
public void doRender(FacesContext context, ResponseWriter writer, UIComponent component, String attribute,
Object attributeValue, String property) throws IOException {
if (Boolean.TRUE.equals(attributeValue)) {
writer.writeAttribute(attribute, "disabled", property);
}
}
};
protected Map getAttributeCallbacks(UIComponent component) {
if (attributeCallbacks == null) {
attributeCallbacks = new HashMap();
attributeCallbacks.put("id", idCallback);
attributeCallbacks.put("name", idCallback);
attributeCallbacks.put("disabled", disabledCallback);
}
return attributeCallbacks;
}
}