/*
* Copyright 2009-2014 PrimeTek.
*
* Licensed 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.primefaces.component.tabmenu;
import java.io.IOException;
import java.util.List;
import javax.faces.component.UIComponent;
import javax.faces.context.FacesContext;
import javax.faces.context.ResponseWriter;
import org.primefaces.component.menu.AbstractMenu;
import org.primefaces.component.menu.BaseMenuRenderer;
import org.primefaces.model.menu.MenuElement;
import org.primefaces.model.menu.MenuItem;
import org.primefaces.util.WidgetBuilder;
public class TabMenuRenderer extends BaseMenuRenderer {
@Override
protected void encodeScript(FacesContext context, AbstractMenu abstractMenu) throws IOException {
TabMenu menu = (TabMenu) abstractMenu;
String clientId = menu.getClientId(context);
WidgetBuilder wb = getWidgetBuilder(context);
wb.init("TabMenu", menu.resolveWidgetVar(), clientId);
wb.finish();
}
@Override
protected void encodeMarkup(FacesContext context, AbstractMenu component) throws IOException {
ResponseWriter writer = context.getResponseWriter();
TabMenu menu = (TabMenu) component;
String clientId = menu.getClientId(context);
String styleClass = menu.getStyleClass();
styleClass = styleClass == null ? TabMenu.CONTAINER_CLASS : TabMenu.CONTAINER_CLASS + " " + styleClass;
int activeIndex = menu.getActiveIndex();
List<MenuElement> elements = menu.getElements();
writer.startElement("div", menu);
writer.writeAttribute("id", clientId, null);
writer.writeAttribute("class", styleClass, "styleClass");
if(menu.getStyle() != null) {
writer.writeAttribute("style", menu.getStyle(), "style");
}
writer.startElement("ul", null);
writer.writeAttribute("class", TabMenu.NAVIGATOR_CLASS, null);
writer.writeAttribute("role", "tablist", null);
int i = 0;
if(elements != null && !elements.isEmpty()) {
for(MenuElement element : elements) {
if(element.isRendered() && (element instanceof MenuItem)) {
encodeItem(context, menu, (MenuItem) element, (i == activeIndex));
i++;
}
}
}
writer.endElement("ul");
writer.endElement("div");
}
protected void encodeItem(FacesContext context, TabMenu menu, MenuItem item, boolean active) throws IOException {
ResponseWriter writer = context.getResponseWriter();
String containerClass = active ? TabMenu.ACTIVE_TAB_HEADER_CLASS : TabMenu.INACTIVE_TAB_HEADER_CLASS;
if(item.getIcon() != null) {
containerClass += " ui-tabmenuitem-hasicon";
}
//header container
writer.startElement("li", null);
writer.writeAttribute("class", containerClass, null);
writer.writeAttribute("role", "tab", null);
writer.writeAttribute("aria-expanded", String.valueOf(active), null);
encodeMenuItem(context, menu, item);
writer.endElement("li");
}
@Override
public void encodeChildren(FacesContext context, UIComponent component) throws IOException {
// Do nothing
}
@Override
public boolean getRendersChildren() {
return true;
}
}