/*
* xulfaces : bring XUL power to Java
*
* Copyright (C) 2005 Olivier SCHMITT
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* 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 St, Fifth Floor, Boston, MA 02110-1301 USA
*/
package org.xulfaces.renderer.tree;
import java.io.IOException;
import java.util.List;
import java.util.Map;
import javax.faces.component.UIComponent;
import javax.faces.context.FacesContext;
import javax.faces.context.ResponseWriter;
import javax.swing.tree.DefaultMutableTreeNode;
import javax.swing.tree.TreeModel;
import javax.swing.tree.TreeNode;
import org.xulfaces.annotation.faces.RENDERER;
import org.xulfaces.component.tree.TreeChildrenComponent;
import org.xulfaces.component.tree.TreeComponent;
import org.xulfaces.component.tree.TreeItemComponent;
import org.xulfaces.renderer.XULRenderer;
/**
*
* @author kito31
* @version $Id: TreeChildrenRenderer.java,v 1.14 2007/04/01 17:07:38 kito31 Exp $
*/
@RENDERER(kit = "XUL_RENDERKIT", family = "xul.component.family", type = "xul.renderer.TreeChildren")
public class TreeChildrenRenderer extends XULRenderer {
public void encodeChildren(FacesContext facesContext, UIComponent component) throws IOException {
TreeComponent treeComponent = (TreeComponent) component.getParent();
TreeChildrenComponent treeChildrenComponent = (TreeChildrenComponent) component;
ResponseWriter responseWriter = facesContext.getResponseWriter();
TreeModel treeModel = treeComponent.getTreeModel();
DefaultMutableTreeNode treeNode = (DefaultMutableTreeNode) treeModel.getRoot();
if (treeNode != null) {
String var = (String) component.getParent().getAttributes().get("var");
if (var != null) {
Map sessionMap = facesContext.getExternalContext().getSessionMap();
synchronized (sessionMap) {
responseWriter.startElement("treechildren",component);
treeChildrenComponent.setNodeId(component.getClientId(facesContext));
responseWriter.writeAttribute("id",treeChildrenComponent.getNodeId(), "id");
renderAttributes(facesContext,component,(List) component.getAttributes().get("annotatedAttributes"));
for (int i = 0; i < treeNode.getChildCount(); i++) {
encodeTreeNode(facesContext, component, (DefaultMutableTreeNode) treeNode.getChildAt(i), i,"" + i );
}
responseWriter.endElement("treechildren");
}
}
else {
throw new NullPointerException("var is null.");
}
}
}
protected void encodeTreeNode(FacesContext facesContext, UIComponent component, DefaultMutableTreeNode treeNode,
int rank,String idPath) throws IOException {
ResponseWriter responseWriter = facesContext.getResponseWriter();
String clientId = component.getClientId(facesContext);
TreeNode[] path = treeNode.getPath();
for (int j = 1; j < path.length; j++) {
TreeNode pathNode = path[j];
clientId = clientId + ":_id" + pathNode.getParent().getIndex(pathNode);
}
String var = (String) component.getParent().getAttributes().get("var");
Object userObject = treeNode.getUserObject();
facesContext.getExternalContext().getSessionMap().put(var, userObject);
TreeItemComponent treeItemComponent = (TreeItemComponent) component.getChildren().get(0);
treeItemComponent.setPath(idPath);
treeItemComponent.setCurrentTreeNode(treeNode);
if (treeItemComponent.isRendered()) {
treeItemComponent.encodeBegin(facesContext);
treeItemComponent.encodeChildren(facesContext);
if (treeNode.getChildCount() > 0) {
responseWriter.startElement("treechildren",null);
for (int i = 0; i < treeNode.getChildCount(); i++) {
DefaultMutableTreeNode childNode = (DefaultMutableTreeNode) treeNode.getChildAt(i);
StringBuffer pathBuffer = new StringBuffer(idPath);
pathBuffer.append("_");
pathBuffer.append(i);
encodeTreeNode(facesContext, component, childNode, i,pathBuffer.toString());
}
responseWriter.endElement("treechildren");
}
treeItemComponent.encodeEnd(facesContext);
}
}
public boolean getRendersChildren() {
return true;
}
}