/*
* Copyright 2004 The Apache Software Foundation.
*
* 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.apache.myfaces.custom.graphicimageajax;
import java.io.IOException;
import javax.faces.application.ViewHandler;
import javax.faces.component.UIComponent;
import javax.faces.context.FacesContext;
import javax.faces.context.ResponseWriter;
import org.apache.myfaces.renderkit.RendererUtils;
import org.apache.myfaces.renderkit.html.HTML;
import org.apache.myfaces.renderkit.html.HtmlRendererUtils;
import org.apache.myfaces.renderkit.html.ext.HtmlImageRenderer;
/**
* @author Sylvain Vieujot
* @version $Revision: 292080 $ $Date: 2005-05-23 19:39:37 +0200 (Mon, 23 May 2005) $
*/
public class GraphicImageAjaxRenderer extends HtmlImageRenderer
{
public static final String RENDERER_TYPE = "org.apache.myfaces.GraphicImageAjaxRenderer";
public void encodeEnd(FacesContext context, UIComponent component) throws IOException
{
RendererUtils.checkParamValidity(context, component, GraphicImageAjax.class);
GraphicImageAjax graphicImageAjax = (GraphicImageAjax) component;
ResponseWriter out = context.getResponseWriter();
String clientId = graphicImageAjax.getClientId(context);
out.startElement(HTML.IMG_ELEM, graphicImageAjax);
out.writeAttribute(HTML.ID_ATTR, clientId, null);
HtmlRendererUtils.renderHTMLAttributes(out, graphicImageAjax, HTML.IMG_PASSTHROUGH_ATTRIBUTES);
out.endElement(HTML.IMG_ELEM);
String viewId = context.getViewRoot().getViewId();
ViewHandler viewHandler = context.getApplication().getViewHandler();
String actionURL = viewHandler.getActionURL(context, viewId);
out.startElement(HTML.SCRIPT_ELEM, null);
out.writeAttribute(HTML.TYPE_ATTR, "text/javascript", null);
out.writeText("document.getElementById('"+clientId+"').src='",null);
out.writeText(context.getExternalContext().encodeActionURL(actionURL+"?affectedGraphicImageComponent="+clientId),null);
out.writeText("&jsf_tree_64='+encodeURIComponent(document.getElementById('jsf_tree_64').value)+'&jsf_state_64='+encodeURIComponent(document.getElementById('jsf_state_64').value)+'&jsf_viewid='+encodeURIComponent(document.getElementById('jsf_viewid').value);", null);
out.endElement(HTML.SCRIPT_ELEM);
}
public void decode(FacesContext facesContext, UIComponent component)
{
super.decode(facesContext, component);
}
}