/*
* 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.standard.standard.tag;
import org.apache.myfaces.tobago.component.RendererTypes;
import org.apache.myfaces.tobago.component.UIMenu;
import org.apache.myfaces.tobago.context.Markup;
import org.apache.myfaces.tobago.context.ResourceManagerUtils;
import org.apache.myfaces.tobago.internal.util.AccessKeyMap;
import org.apache.myfaces.tobago.renderkit.LabelWithAccessKey;
import org.apache.myfaces.tobago.renderkit.LayoutComponentRendererBase;
import org.apache.myfaces.tobago.renderkit.css.Classes;
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.util.ComponentUtils;
import org.apache.myfaces.tobago.webapp.TobagoResponseWriter;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import javax.faces.component.UIComponent;
import javax.faces.context.FacesContext;
import java.io.IOException;
public class MenuRenderer extends LayoutComponentRendererBase {
private static final Logger LOG = LoggerFactory.getLogger(MenuRenderer.class);
@Override
public void prepareRender(final FacesContext facesContext, final UIComponent component) throws IOException {
super.prepareRender(facesContext, component);
final UIMenu menu = (UIMenu) component;
final boolean firstLevel = !RendererTypes.MENU.equals(menu.getParent().getRendererType());
if (firstLevel) {
ComponentUtils.addCurrentMarkup(menu, Markup.TOP);
}
}
@Override
public void encodeBegin(final FacesContext facesContext, final UIComponent component) throws IOException {
final UIMenu menu = (UIMenu) component;
final TobagoResponseWriter writer = HtmlRendererUtils.getTobagoResponseWriter(facesContext);
final boolean disabled = menu.isDisabled();
final boolean firstLevel = !RendererTypes.MENU.equals(menu.getParent().getRendererType());
final boolean isParentMenu = menu.getChildCount() > 0; // todo: may be not correct
writer.startElement(HtmlElements.LI, menu);
writer.writeClassAttribute(Classes.create(menu));
StringBuilder backgroundImage = null;
StringBuilder backgroundPosition = null;
if (menu.getImage() != null) {
backgroundImage = new StringBuilder();
backgroundPosition = new StringBuilder();
backgroundImage.append("url('");
backgroundImage.append(
ResourceManagerUtils.getImageOrDisabledImageWithPath(facesContext, menu.getImage(), menu.isDisabled()));
backgroundImage.append("')");
backgroundPosition.append("left center");
}
if (isParentMenu && !firstLevel) {
if (backgroundImage == null) {
backgroundImage = new StringBuilder();
backgroundPosition = new StringBuilder();
} else {
backgroundImage.append(",");
backgroundPosition.append(",");
}
backgroundImage.append("url('");
backgroundImage.append(
ResourceManagerUtils.getImageOrDisabledImageWithPath(facesContext, "image/MenuArrow.gif", menu.isDisabled()));
backgroundImage.append("')");
backgroundPosition.append("right center");
}
if (backgroundImage != null) {
final Style style = new Style();
style.setBackgroundImage(backgroundImage.toString());
style.setBackgroundPosition(backgroundPosition.toString());
writer.writeStyleAttribute(style);
}
writer.startElement(HtmlElements.A, menu);
writer.writeAttribute(HtmlAttributes.HREF, "#", false);
if (component != null && !component.isTransient()) {
writer.writeIdAttribute(component.getClientId(facesContext));
}
final LabelWithAccessKey label = new LabelWithAccessKey(menu);
if (label.getText() != null) {
if (label.getAccessKey() != null) {
if (LOG.isInfoEnabled()
&& !AccessKeyMap.addAccessKey(facesContext, label.getAccessKey())) {
LOG.info("duplicated accessKey : " + label.getAccessKey());
}
if (!disabled && label.getAccessKey() != null) {
writer.writeAttribute(HtmlAttributes.ACCESSKEY, Character.toString(label.getAccessKey()), false);
}
}
HtmlRendererUtils.writeLabelWithAccessKey(writer, label);
}
writer.endElement(HtmlElements.A);
if (isParentMenu) {
writer.startElement(HtmlElements.OL, menu);
}
}
@Override
public void encodeEnd(final FacesContext facesContext, final UIComponent component) throws IOException {
final UIMenu menu = (UIMenu) component;
final TobagoResponseWriter writer = HtmlRendererUtils.getTobagoResponseWriter(facesContext);
final boolean isParentMenu = menu.getChildCount() > 0; // todo: may be not correct
if (isParentMenu) {
writer.endElement(HtmlElements.OL);
}
writer.endElement(HtmlElements.LI);
}
}