/*
* 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.tobago.renderkit.html.scarborough.standard.tag;
import org.apache.myfaces.tobago.component.UITreeIcon;
import org.apache.myfaces.tobago.component.UITreeNode;
import org.apache.myfaces.tobago.context.Markup;
import org.apache.myfaces.tobago.context.ResourceManagerUtils;
import org.apache.myfaces.tobago.context.ResourceUtils;
import org.apache.myfaces.tobago.renderkit.LayoutComponentRendererBase;
import org.apache.myfaces.tobago.renderkit.css.Classes;
import org.apache.myfaces.tobago.renderkit.html.DataAttributes;
import org.apache.myfaces.tobago.renderkit.html.HtmlAttributes;
import org.apache.myfaces.tobago.renderkit.html.HtmlElements;
import org.apache.myfaces.tobago.renderkit.html.util.HtmlRendererUtils;
import org.apache.myfaces.tobago.util.ComponentUtils;
import org.apache.myfaces.tobago.webapp.TobagoResponseWriter;
import javax.faces.component.UIComponent;
import javax.faces.context.FacesContext;
import java.io.IOException;
public class TreeIconRenderer extends LayoutComponentRendererBase {
protected static final String OPEN_FOLDER
= ResourceUtils.createString("image", "treeNode", "icon", "open", ResourceUtils.GIF);
protected static final String CLOSED_FOLDER
= ResourceUtils.createString("image", "treeNode", "icon", ResourceUtils.GIF);
protected static final String LEAF
= ResourceUtils.createString("image", "treeNode", "icon", "leaf", ResourceUtils.GIF);
@Override
public void encodeBegin(FacesContext facesContext, UIComponent component) throws IOException {
final UITreeIcon image = (UITreeIcon) component;
final UITreeNode node = ComponentUtils.findAncestor(image, UITreeNode.class);
final boolean folder = node.isFolder();
final boolean expanded = folder && node.isExpanded();
String source;
final String openSource;
final String closedSource;
final String imageUrl = (String) image.getValue();
if (imageUrl != null) { // application image
closedSource = ResourceManagerUtils.getImageWithPath(facesContext, imageUrl);
} else { // theme image
closedSource = ResourceManagerUtils.getImageWithPath(facesContext, CLOSED_FOLDER);
}
if (folder) {
if (imageUrl != null) { // application image
openSource = ResourceManagerUtils.getImageWithPath(facesContext,
ResourceUtils.addPostfixToFilename(imageUrl, "-open"), true);
} else { // theme image
openSource = ResourceManagerUtils.getImageWithPath(facesContext, OPEN_FOLDER);
}
source = expanded ? openSource : closedSource;
} else {
openSource = null;
if (imageUrl != null) { // application image
source = ResourceManagerUtils.getImageWithPath(facesContext,
ResourceUtils.addPostfixToFilename(imageUrl, "-leaf"), true);
} else { // theme image
source = ResourceManagerUtils.getImageWithPath(facesContext, LEAF);
}
}
if (source == null) {
source = closedSource;
}
if (source == null) {
source = openSource;
}
TobagoResponseWriter writer = HtmlRendererUtils.getTobagoResponseWriter(facesContext);
writer.startElement(HtmlElements.IMG, null);
writer.writeClassAttribute(Classes.create(node, "toggle", Markup.NULL));
HtmlRendererUtils.writeDataAttributes(facesContext, writer, image);
writer.writeAttribute(HtmlAttributes.SRC, source, true);
if (folder) {
writer.writeAttribute(DataAttributes.SRC_OPEN, openSource, true);
writer.writeAttribute(DataAttributes.SRC_CLOSE, closedSource, true);
}
writer.writeAttribute(HtmlAttributes.ALT, "", false);
writer.endElement(HtmlElements.IMG);
}
}