/*
* Copyright 2009 Prime Technology.
*
* 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.menu;
import java.io.IOException;
import java.util.Iterator;
import java.util.List;
import javax.faces.component.UIComponent;
import javax.faces.context.FacesContext;
import javax.faces.context.ResponseWriter;
import org.primefaces.component.menuitem.MenuItem;
import org.primefaces.component.submenu.Submenu;
import org.primefaces.renderkit.CoreRenderer;
public class MenuRenderer extends CoreRenderer{
public void encodeEnd(FacesContext facesContext, UIComponent component) throws IOException {
Menu menu = (Menu) component;
encodeScript(facesContext, menu);
encodeMarkup(facesContext, menu);
}
private void encodeScript(FacesContext facesContext, Menu menu) throws IOException{
ResponseWriter writer = facesContext.getResponseWriter();
String clientId = menu.getClientId(facesContext);
String menuVar = createUniqueWidgetVar(facesContext, menu);
writer.startElement("script", null);
writer.writeAttribute("type", "text/javascript", null);
writer.write("PrimeFaces.onContentReady('" + clientId + "', function() {\n");
writer.write(menuVar + " = new YAHOO.widget.Menu('" + clientId + "', {");
if(menu.getPosition().equalsIgnoreCase("static")) {
writer.write("position:'static'");
}
else if(menu.getPosition().equalsIgnoreCase("dynamic")) {
writer.write("position:'dynamic'");
if(menu.isVisible()) writer.write(",visible:true");
if(!menu.isClickToHide()) writer.write(",clicktohide:false");
if(menu.isKeepOpen()) writer.write(",keepopen:true");
if(menu.getX() != -1) writer.write(",x:" + menu.getX());
if(menu.getY() != -1) writer.write(",y:" + menu.getY());
if(menu.isFixedCenter()) writer.write(",fixedcenter:true");
if(!menu.isConstraintToViewport()) writer.write(",constrainttoviewport:false");
if(menu.getShowDelay() != 250) writer.write(",showdelay:" + menu.getShowDelay());
if(menu.getHideDelay() != 0) writer.write(",hidedelay:" + menu.getHideDelay());
if(menu.getSubmenuHideDelay() != 250) writer.write(",submenuhidedelay:" + menu.getSubmenuHideDelay());
if(menu.getContext() != null) writer.write(",context:[" + menu.getContext() + "]");
}
if(menu.isAutoSubmenuDisplay() == false) writer.write(",autosubmenudisplay:false");
if(!menu.getEffect().equals("NONE")) {
writer.write(",effect: {effect: YAHOO.widget.ContainerEffect." + menu.getEffect());
if(menu.getEffectDuration() != 0.25)
writer.write(",duration:" + menu.getEffectDuration() + "}");
else
writer.write(",duration: 0.25}");
}
writer.write("});\n");
writer.write(menuVar + ".render();\n");
writer.write("});\n");
writer.endElement("script");
}
private void encodeMarkup(FacesContext facesContext, Menu menu) throws IOException{
ResponseWriter writer = facesContext.getResponseWriter();
String clientId = menu.getClientId(facesContext);
writer.startElement("div", null);
writer.writeAttribute("id", clientId, null);
writer.writeAttribute("class", "yuimenu", null);
writer.startElement("div", null);
writer.writeAttribute("class", "bd", null);
if(menu.isTiered())
renderTieredMenu(facesContext, menu);
else
renderRegularMenu(facesContext, menu);
writer.endElement("div");
writer.endElement("div");
}
private void renderTieredMenu(FacesContext facesContext, Menu menu) throws IOException{
ResponseWriter writer = facesContext.getResponseWriter();
List<UIComponent> submenus = menu.getChildren();
writer.startElement("ul", null);
writer.writeAttribute("class", "first-of-type", null);
for (int i=0; i < submenus.size(); i++) {
Submenu submenu = (Submenu) submenus.get(i);
encodeTieredSubmenu(facesContext, submenu);
}
writer.endElement("ul");
}
private void renderRegularMenu(FacesContext facesContext, Menu menu) throws IOException{
ResponseWriter writer = facesContext.getResponseWriter();
List<UIComponent> submenus = menu.getChildren();
for (int i=0; i < submenus.size(); i++) {
Submenu submenu = (Submenu) submenus.get(i);
if(submenu.isRendered()) {
writer.startElement("h6", null);
String defaultTitleStyleClass = (i == 0) ? "first-of-type" : null;
if(submenu.getStyleClass() != null) {
if(defaultTitleStyleClass != null)
writer.writeAttribute("class", defaultTitleStyleClass + " " + submenu.getStyleClass(), null);
else
writer.writeAttribute("class", submenu.getStyleClass(), null);
} else if(defaultTitleStyleClass != null) {
writer.writeAttribute("class", defaultTitleStyleClass, null);
}
if(submenu.getStyle() != null) writer.writeAttribute("style", submenu.getStyle(), null);
if(submenu.getLabel() != null)
writer.write(submenu.getLabel());
writer.endElement("h6");
writer.startElement("ul", null);
if(i == 0)
writer.writeAttribute("class", "first-of-type", null);
encodeSubmenuItems(facesContext, submenu);
writer.endElement("ul");
}
}
}
private void encodeTieredSubmenu(FacesContext facesContext, Submenu submenu) throws IOException{
ResponseWriter writer = facesContext.getResponseWriter();
String styleClass = submenu.getStyleClass() == null ? "yuimenuitemlabel" : "yuimenuitemlabel " + submenu.getStyleClass();
writer.startElement("li", null);
writer.writeAttribute("class", "yuimenuitem", null);
writer.startElement("a", null);
writer.writeAttribute("class", styleClass, null);
if(submenu.getLabel() != null)
writer.write(submenu.getLabel());
writer.endElement("a");
writer.startElement("div", null);
writer.writeAttribute("class", "yuimenu", null);
writer.startElement("div", null);
writer.writeAttribute("class", "bd", null);
writer.startElement("ul", null);
writer.writeAttribute("class", "first-of-type", null);
encodeSubmenuItems(facesContext, submenu);
writer.endElement("ul");
writer.endElement("li");
}
private void encodeSubmenuItems(FacesContext facesContext, Submenu submenu) throws IOException{
ResponseWriter writer = facesContext.getResponseWriter();
for (Iterator<UIComponent> iterator = submenu.getChildren().iterator(); iterator.hasNext();) {
UIComponent child = (UIComponent) iterator.next();
if(child instanceof MenuItem && child.isRendered()) {
MenuItem menuItem = (MenuItem) child;
String styleClass = menuItem.getStyleClass() == null ? "yuimenuitem" : "yuimenuitem " + menuItem.getStyleClass();
writer.startElement("li", null);
writer.writeAttribute("class", "yuimenuitem", null);
writer.startElement("a", null);
writer.writeAttribute("href", menuItem.getUrl(), null);
writer.writeAttribute("class", styleClass, null);
if(menuItem.getStyle() != null) writer.writeAttribute("style", menuItem.getStyle(), null);
if(menuItem.getTarget() != null) writer.writeAttribute("target", menuItem.getTarget(), null);
if(menuItem.getOnclick() != null) writer.writeAttribute("onclick", menuItem.getOnclick(), null);
if(menuItem.getLabel() != null) writer.write(menuItem.getLabel());
writer.endElement("a");
writer.endElement("li");
} else if(child instanceof Submenu && child.isRendered()) {
encodeTieredSubmenu(facesContext, (Submenu) child);
}
}
}
public void encodeChildren(FacesContext facesContext, UIComponent component) throws IOException {
//Do nothing
}
public boolean getRendersChildren() {
return true;
}
}