/**
* License Agreement.
*
* Rich Faces - Natural Ajax for Java Server Faces (JSF)
*
* Copyright (C) 2007 Exadel, Inc.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License version 2.1 as published by the Free Software Foundation.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
package org.richfaces.renderkit.html;
import java.io.IOException;
import java.util.HashMap;
import java.util.Map;
import javax.faces.FacesException;
import javax.faces.component.UIComponent;
import javax.faces.component.UIParameter;
import javax.faces.context.FacesContext;
import javax.faces.context.ResponseWriter;
import org.ajax4jsf.Messages;
import org.richfaces.cdk.annotations.JsfRenderer;
import org.richfaces.component.AbstractMediaOutput;
import org.richfaces.renderkit.HtmlConstants;
import org.richfaces.renderkit.RendererBase;
/**
* @author shura
*
*/
@JsfRenderer(family = AbstractMediaOutput.COMPONENT_FAMILY)
public class MediaOutputRenderer extends RendererBase {
public static final String RENDERER_TYPE = "org.richfaces.MediaOutputRenderer";
/**
* Associationd between element name and uri attributes
*/
private static final Map<String, String> URI_ATTRIBUTES;
static {
URI_ATTRIBUTES = new HashMap<String, String>();
URI_ATTRIBUTES.put("a", "href");
URI_ATTRIBUTES.put("img", "src");
URI_ATTRIBUTES.put("object", "data");
URI_ATTRIBUTES.put("link", "href");
}
/*
* (non-Javadoc)
*
* @see org.ajax4jsf.renderkit.RendererBase#doEncodeEnd(javax.faces.context.ResponseWriter,
* javax.faces.context.FacesContext, javax.faces.component.UIComponent)
*/
@Override
protected void doEncodeEnd(ResponseWriter writer, FacesContext context, UIComponent component) throws IOException {
AbstractMediaOutput mmedia = (AbstractMediaOutput) component;
String element = mmedia.getElement();
if (null == element) {
throw new FacesException(Messages.getMessage(Messages.NULL_ATTRIBUTE_ERROR, "element",
component.getClientId(context)));
}
writer.endElement(element);
}
/*
* (non-Javadoc)
*
* @see org.ajax4jsf.renderkit.RendererBase#getComponentClass()
*/
@Override
protected Class<? extends UIComponent> getComponentClass() {
// TODO Auto-generated method stub
return AbstractMediaOutput.class;
}
/*
* (non-Javadoc)
*
* @see org.ajax4jsf.renderkit.RendererBase#doEncodeBegin(javax.faces.context.ResponseWriter,
* javax.faces.context.FacesContext, javax.faces.component.UIComponent)
*/
@Override
protected void doEncodeBegin(ResponseWriter writer, FacesContext context, UIComponent component) throws IOException {
AbstractMediaOutput mmedia = (AbstractMediaOutput) component;
String element = mmedia.getElement();
if (null == element) {
throw new FacesException(Messages.getMessage(Messages.NULL_ATTRIBUTE_ERROR, "element",
component.getClientId(context)));
}
String uriAttribute = mmedia.getUriAttribute();
// Check for pre-defined attributes
if (null == uriAttribute) {
uriAttribute = URI_ATTRIBUTES.get(element);
if (null == uriAttribute) {
throw new FacesException(Messages.getMessage(Messages.NULL_ATTRIBUTE_ERROR, "uriAttribute",
component.getClientId(context)));
}
}
writer.startElement(element, mmedia);
getUtils().encodeId(context, component);
StringBuilder uri = new StringBuilder(mmedia.getResource().getRequestPath());
// Append parameters to resource Uri
boolean haveQestion = uri.indexOf("?") >= 0;
for (UIComponent child : component.getChildren()) {
if (child instanceof UIParameter) {
UIParameter uiParam = (UIParameter) child;
String name = uiParam.getName();
Object value = uiParam.getValue();
if (null != value) {
if (haveQestion) {
uri.append('&');
} else {
uri.append('?');
haveQestion = true;
}
uri.append(name).append('=').append(value.toString());
}
}
}
writer.writeURIAttribute(uriAttribute, uri, "uri");
getUtils().encodeAttributesFromArray(context, component, HtmlConstants.PASS_THRU_STYLES);
getUtils().encodePassThru(context, mmedia, null);
}
}