/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you 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.tree2;
import java.util.Map;
import javax.faces.component.UIComponent;
import javax.faces.component.UIGraphic;
import javax.faces.component.UIViewRoot;
import javax.faces.view.facelets.ComponentConfig;
import javax.faces.view.facelets.ComponentHandler;
import javax.faces.view.facelets.FaceletContext;
/**
*
* @since 1.1.10
* @author Leonardo Uribe
*/
public class HtmlTreeTagHandler extends ComponentHandler
{
private static final String IMAGE_PREFIX = "t2";
private static final String NODE_STATE_EXPANDED = "x";
private static final String NODE_STATE_CLOSED = "c";
public HtmlTreeTagHandler(ComponentConfig config)
{
super(config);
}
@Override
public void onComponentPopulated(FaceletContext ctx, UIComponent c,
UIComponent parent)
{
if (ComponentHandler.isNew(c))
{
// t:tree2 requires to force id rendering of UIGraphic images on "expand" and "collapse" facets for
// a nodeTypeFacet. Long time ago, this was done on HtmlTreeRenderer.encodeNavigation, but that
// hack will not work well with jsf 2 PSS, because it requires ids to be generated in a "stable" way,
// and that hack used a counter to generate it.
for (Map.Entry<String, UIComponent> entry : c.getFacets().entrySet())
{
UIComponent nodeTypeFacet = entry.getValue();
UIComponent expandFacet = nodeTypeFacet.getFacet("expand");
if (expandFacet != null)
{
//if (! (expandFacet instanceof UIGraphic))
//{
// expandFacet = expandFacet.getChildren().get(0);
// nodeTypeFacet.getFacets().put("expand", expandFacet);
//}
UIGraphic expandImg = (UIGraphic)expandFacet;
String id = expandImg.getId();
if (id.startsWith(UIViewRoot.UNIQUE_ID_PREFIX))
{
expandImg.setId(IMAGE_PREFIX + id.substring(UIViewRoot.UNIQUE_ID_PREFIX.length()) + NODE_STATE_EXPANDED);
}
}
UIComponent collapseFacet = nodeTypeFacet.getFacet("collapse");
if (collapseFacet != null)
{
//if (! (collapseFacet instanceof UIGraphic))
//{
// collapseFacet = collapseFacet.getChildren().get(0);
// nodeTypeFacet.getFacets().put("collapse", collapseFacet);
//}
UIGraphic collapseImg = (UIGraphic)collapseFacet;
String id = collapseImg.getId();
if (id.startsWith(UIViewRoot.UNIQUE_ID_PREFIX))
{
collapseImg.setId(IMAGE_PREFIX + id.substring(UIViewRoot.UNIQUE_ID_PREFIX.length()) + NODE_STATE_CLOSED);
}
}
}
}
}
}