/*
* 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 javax.faces.FacesException;
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;
import org.primefaces.util.ComponentUtils;
public class MenuRenderer extends CoreRenderer{
public void encodeEnd(FacesContext facesContext, UIComponent component) throws IOException {
Menu menu = (Menu) component;
if(menu.shouldBuildFromModel()) {
menu.buildMenuFromModel();
}
encodeMarkup(facesContext, menu);
encodeScript(facesContext, menu);
}
protected 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(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.getZindex() != Integer.MAX_VALUE) writer.write(",zIndex:" + menu.getZindex());
}
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.endElement("script");
}
protected void encodeMarkup(FacesContext facesContext, Menu menu) throws IOException{
ResponseWriter writer = facesContext.getResponseWriter();
String clientId = menu.getClientId(facesContext);
String defaultStyleClass = "ui-menu ui-widget ui-widget-content ui-corner-all";
String styleClass = menu.getStyleClass() == null ? defaultStyleClass : defaultStyleClass + " " + menu.getStyleClass();
writer.startElement("div", null);
writer.writeAttribute("id", clientId, null);
writer.writeAttribute("class", styleClass, null);
if(menu.getStyle() != null) writer.writeAttribute("style", menu.getStyle(), null);
writer.startElement("div", null);
writer.writeAttribute("class", "bd", null);
if(menu.isTiered())
renderTieredMenu(facesContext, menu);
else
encodeRegularMenu(facesContext, menu);
writer.endElement("div");
writer.endElement("div");
}
protected void renderTieredMenu(FacesContext facesContext, Menu menu) throws IOException{
ResponseWriter writer = facesContext.getResponseWriter();
writer.startElement("ul", null);
for(UIComponent child : menu.getChildren()) {
encodeTieredSubmenu(facesContext, (Submenu) child);
}
writer.endElement("ul");
}
protected void encodeRegularMenu(FacesContext facesContext, Menu menu) throws IOException{
ResponseWriter writer = facesContext.getResponseWriter();
for(UIComponent child : menu.getChildren()) {
Submenu submenu = (Submenu) child;
if(submenu.isRendered()) {
//Submenu label
if(submenu.getLabel() != null) {
writer.startElement("div", null);
String defaultLabelClass = "ui-submenu-label ui-widget-header ui-corner-all";
String styleClass = submenu.getLabelStyleClass() == null ? defaultLabelClass : defaultLabelClass + " " + submenu.getLabelStyleClass();
writer.writeAttribute("class", styleClass, null);
if(submenu.getLabelStyle() != null)
writer.writeAttribute("style", submenu.getLabelStyle(), null);
writer.write(submenu.getLabel());
writer.endElement("div");
}
//Submenu content
writer.startElement("ul", null);
encodeSubmenuItems(facesContext, submenu);
writer.endElement("ul");
}
}
}
protected void encodeTieredSubmenu(FacesContext facesContext, Submenu submenu) throws IOException{
ResponseWriter writer = facesContext.getResponseWriter();
String clientId = submenu.getClientId(facesContext);
String defaultLabelStyleClass= "ui-menu-item-label";
String labelStyleClass = submenu.getLabelStyleClass() == null ? defaultLabelStyleClass : defaultLabelStyleClass + " " + submenu.getLabelStyleClass();
writer.startElement("li", null);
writer.writeAttribute("class", "ui-menu-item ui-corner-all", null);
writer.startElement("a", null);
writer.writeAttribute("href", "#" + clientId, null);
writer.writeAttribute("class", labelStyleClass, null);
if(submenu.getLabel() != null)
writer.write(submenu.getLabel());
writer.endElement("a");
writer.startElement("span", null);
writer.writeAttribute("class", "ui-menu-item-submenu-icon ui-icon ui-icon-triangle-1-e", null);
writer.endElement("span");
writer.startElement("div", null);
writer.writeAttribute("id", clientId, null);
writer.writeAttribute("class", "ui-menu ui-widget ui-widget-content ui-corner-all", null);
writer.startElement("div", null);
writer.writeAttribute("class", "bd", null);
writer.startElement("ul", null);
encodeSubmenuItems(facesContext, submenu);
writer.endElement("ul");
writer.endElement("div");
writer.endElement("div");
writer.endElement("li");
}
protected 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 menuItemClientId = menuItem.getClientId(facesContext);
String defaultLabelStyleClass= "ui-menu-item-label";
String labelStyleClass = menuItem.getStyleClass() == null ? defaultLabelStyleClass : defaultLabelStyleClass + " " + menuItem.getStyleClass();
String icon = menuItem.getIcon() != null ? "background:url(" + getResourceURL(facesContext, menuItem.getIcon()) + ") no-repeat 1%;" : null;
String style = menuItem.getStyle();
if(style != null && icon != null)
style = icon + style;
else if(style == null && icon != null)
style = icon;
writer.startElement("li", null);
writer.writeAttribute("class", "ui-menu-item ui-corner-all", null);
if(menuItem.shouldRenderChildren()) {
renderChildren(facesContext, menuItem);
} else {
writer.startElement("a", null);
writer.writeAttribute("id", menuItemClientId, null);
writer.writeAttribute("class", labelStyleClass, null);
if(style != null) writer.writeAttribute("style", style, null);
if(menuItem.getUrl() != null) {
writer.writeAttribute("href", getResourceURL(facesContext, menuItem.getUrl()), null);
if(menuItem.getOnclick() != null) writer.writeAttribute("onclick", menuItem.getOnclick(), null);
if(menuItem.getTarget() != null) writer.writeAttribute("target", menuItem.getTarget(), null);
} else {
writer.writeAttribute("href", "javascript:void(0)", null);
UIComponent form = ComponentUtils.findParentForm(facesContext, submenu);
if(form == null) {
throw new FacesException("Menu must be inside a form element");
}
String formClientId = form.getClientId(facesContext);
String command = menuItem.isAjax() ? buildAjaxRequest(facesContext, menuItem, formClientId, menuItemClientId) : buildNonAjaxRequest(facesContext, menuItem, formClientId, menuItemClientId);
command = menuItem.getOnclick() == null ? command : menuItem.getOnclick() + ";" + command;
writer.writeAttribute("onclick", command, null);
}
if(menuItem.getValue() != null) writer.write((String) menuItem.getValue());
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;
}
}