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* 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.commons.lang.StringUtils;
import org.apache.myfaces.tobago.component.UITreeNode;
import org.apache.myfaces.tobago.component.UITreeSelect;
import org.apache.myfaces.tobago.context.Markup;
import org.apache.myfaces.tobago.event.TreeExpansionEvent;
import org.apache.myfaces.tobago.event.TreeMarkedEvent;
import org.apache.myfaces.tobago.internal.component.AbstractUITree;
import org.apache.myfaces.tobago.model.Selectable;
import org.apache.myfaces.tobago.renderkit.CommandRendererBase;
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 org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import javax.faces.component.NamingContainer;
import javax.faces.component.UIComponent;
import javax.faces.context.FacesContext;
import java.io.IOException;
import java.util.Map;
public class TreeListboxNodeRenderer extends CommandRendererBase {
private static final Logger LOG = LoggerFactory.getLogger(TreeListboxNodeRenderer.class);
// TODO cleanup: there might be some stuff to remove after tree refactoring
@Override
public void decode(FacesContext facesContext, UIComponent component) {
UITreeNode node = (UITreeNode) component;
super.decode(facesContext, node);
if (ComponentUtils.isOutputOnly(node)) {
return;
}
final AbstractUITree tree = ComponentUtils.findAncestor(node, AbstractUITree.class);
final String treeId = tree.getClientId(facesContext);
final String nodeStateId = node.nodeStateId(facesContext);
final Map<String, String> requestParameterMap = facesContext.getExternalContext().getRequestParameterMap();
final String id = node.getClientId(facesContext);
final boolean folder = node.isFolder();
// expand state
if (folder) {
boolean expanded = Boolean.parseBoolean((String) requestParameterMap.get(id + "-expanded"));
if (node.isExpanded() != expanded) {
new TreeExpansionEvent(node, node.isExpanded(), expanded).queue();
}
}
// select
if (tree.getSelectableAsEnum() != Selectable.NONE) { // selection
String selected = (String) requestParameterMap.get(treeId + AbstractUITree.SELECT_STATE);
String searchString = ";" + node.getClientId(facesContext) + ";";
UITreeSelect treeSelect = ComponentUtils.findDescendant(node, UITreeSelect.class);
if (treeSelect != null) {
treeSelect.setSubmittedValue(StringUtils.contains(selected, searchString));
}
}
// marked
String marked
= (String) requestParameterMap.get(treeId + ComponentUtils.SUB_SEPARATOR + AbstractUITree.SUFFIX_MARKED);
if (marked != null) {
String searchString = treeId + NamingContainer.SEPARATOR_CHAR + nodeStateId;
boolean markedValue = marked.equals(searchString);
if (node.isMarked() != markedValue) {
new TreeMarkedEvent(node, node.isMarked(), markedValue).queue();
}
} else {
LOG.warn("This log message is help clarifying the occurrence of this else case.");
}
}
@Override
public void prepareRender(FacesContext facesContext, UIComponent component) throws IOException {
super.prepareRender(facesContext, component);
final UITreeNode node = (UITreeNode) component;
if (node.isMarked()) {
node.setMarkup(Markup.MARKED.add(node.getMarkup()));
}
}
@Override
public void encodeBegin(FacesContext facesContext, UIComponent component) throws IOException {
final UITreeNode node = (UITreeNode) component;
final boolean folder = node.isFolder();
final String id = node.getClientId(facesContext);
final boolean expanded = folder && node.isExpanded();
final TobagoResponseWriter writer = HtmlRendererUtils.getTobagoResponseWriter(facesContext);
writer.startElement(HtmlElements.OPTION, null);
// todo: define where to store the selection of a tree, node.getValue() seems not to be a god place.
// writer.writeAttribute(HtmlAttributes.VALUE, node.getValue().toString(), true); // XXX converter?
writer.writeAttribute(HtmlAttributes.VALUE, id, true);
writer.writeIdAttribute(id);
writer.writeAttribute(HtmlAttributes.SELECTED, expanded);
}
@Override
public void encodeEnd(FacesContext facesContext, UIComponent component) throws IOException {
final UITreeNode node = (UITreeNode) component;
final TobagoResponseWriter writer = HtmlRendererUtils.getTobagoResponseWriter(facesContext);
final boolean folder = node.isFolder();
if (folder) {
writer.writeText(" \u2192"); // this is an right arrow →
}
writer.endElement(HtmlElements.OPTION);
}
}