package org.apache.myfaces.tobago.renderkit.html.scarborough.standard.tag;
/*
* 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.
*/
import org.apache.myfaces.tobago.component.RendererTypes;
import org.apache.myfaces.tobago.component.UITreeNode;
import org.apache.myfaces.tobago.internal.component.AbstractUITree;
import org.apache.myfaces.tobago.internal.context.ResponseWriterDivider;
import org.apache.myfaces.tobago.layout.Measure;
import org.apache.myfaces.tobago.renderkit.LayoutComponentRendererBase;
import org.apache.myfaces.tobago.renderkit.css.Classes;
import org.apache.myfaces.tobago.renderkit.css.Position;
import org.apache.myfaces.tobago.renderkit.css.Style;
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.renderkit.util.RenderUtils;
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;
import java.util.List;
public class TreeListboxRenderer extends LayoutComponentRendererBase {
public static final String DIVIDER = TreeListboxRenderer.class.getName() + "DIVIDER";
public void prepareRender(FacesContext facesContext, UIComponent component) throws IOException {
super.prepareRender(facesContext, component);
setRendererTypeForCommandsAndNodes(component);
}
protected void setRendererTypeForCommandsAndNodes(UIComponent component) {
for (UIComponent child : (List<UIComponent>) component.getChildren()) {
if (child instanceof UITreeNode) {
child.setRendererType(RendererTypes.TREE_LISTBOX_NODE);
}
setRendererTypeForCommandsAndNodes(child);
}
}
@Override
public void decode(FacesContext facesContext, UIComponent component) {
if (ComponentUtils.isOutputOnly(component)) {
return;
}
AbstractUITree tree = (AbstractUITree) component;
tree.setValid(true);
}
@Override
public void encodeChildren(FacesContext context, UIComponent component) throws IOException {
// will be rendered in encodeEnd()
}
@Override
public void encodeEnd(FacesContext facesContext, UIComponent component) throws IOException {
AbstractUITree tree = (AbstractUITree) component;
String clientId = tree.getClientId(facesContext);
UIComponent root = tree.getRoot();
TobagoResponseWriter writer = HtmlRendererUtils.getTobagoResponseWriter(facesContext);
writer.startElement(HtmlElements.DIV, tree);
writer.writeClassAttribute(Classes.create(tree));
Style style = new Style(facesContext, tree);
writer.writeStyleAttribute(style);
writer.startElement(HtmlElements.INPUT, tree);
writer.writeAttribute(HtmlAttributes.TYPE, "hidden", false);
writer.writeNameAttribute(clientId);
writer.writeIdAttribute(clientId);
writer.writeAttribute(HtmlAttributes.VALUE, ";", false);
writer.endElement(HtmlElements.INPUT);
writer.startElement(HtmlElements.INPUT, tree);
writer.writeAttribute(HtmlAttributes.TYPE, "hidden", false);
writer.writeNameAttribute(clientId + AbstractUITree.MARKED);
writer.writeIdAttribute(clientId + AbstractUITree.MARKED);
writer.writeAttribute(HtmlAttributes.VALUE, "", false);
writer.endElement(HtmlElements.INPUT);
if (tree.getSelectableAsEnum().isSupportedByTreeListbox()) {
writer.startElement(HtmlElements.INPUT, tree);
writer.writeAttribute(HtmlAttributes.TYPE, "hidden", false);
writer.writeNameAttribute(clientId + AbstractUITree.SELECT_STATE);
writer.writeIdAttribute(clientId + AbstractUITree.SELECT_STATE);
writer.writeAttribute(HtmlAttributes.VALUE, ";", false);
writer.endElement(HtmlElements.INPUT);
}
RenderUtils.encode(facesContext, root);
writer.startElement(HtmlElements.DIV, tree);
Style scrollDivStyle = new Style();
scrollDivStyle.setWidth(Measure.valueOf(6 * 160)); // todo: depth * width of a select
scrollDivStyle.setHeight(style.getHeight() // todo: what, when there is no scrollbar?
.subtract(15)); // todo: scrollbar height
scrollDivStyle.setPosition(Position.ABSOLUTE);
writer.writeStyleAttribute(scrollDivStyle);
ResponseWriterDivider divider = ResponseWriterDivider.getInstance(facesContext, DIVIDER);
// write in all open branches the end tag.
while (divider.activateBranch(facesContext)) {
writer = HtmlRendererUtils.getTobagoResponseWriter(facesContext);
writer.endElement(HtmlElements.DIV);
}
while (divider.passivateBranch(facesContext)) {
}
divider.writeOutAndCleanUp(facesContext);
writer = HtmlRendererUtils.getTobagoResponseWriter(facesContext);
writer.endElement(HtmlElements.DIV);
writer.endElement(HtmlElements.DIV);
}
}