/**
* License Agreement.
*
* JBoss RichFaces - Ajax4jsf Component Library
*
* Copyright (C) 2007 Exadel, Inc.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License version 2.1 as published by the Free Software Foundation.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
package org.richfaces.renderkit.html;
import java.io.IOException;
import java.util.Iterator;
import java.util.LinkedList;
import java.util.List;
import java.util.Set;
import javax.faces.component.UIComponent;
import javax.faces.context.FacesContext;
import javax.faces.context.ResponseWriter;
import org.ajax4jsf.context.AjaxContext;
import org.ajax4jsf.javascript.JSFunction;
import org.ajax4jsf.renderkit.HeaderResourcesRendererBase;
import org.richfaces.component.UIDropDownMenu;
import org.richfaces.component.UIMenuGroup;
import org.richfaces.component.UIMenuItem;
import org.richfaces.component.UIMenuSeparator;
import org.richfaces.component.util.HtmlUtil;
import org.richfaces.renderkit.ScriptOptions;
public class DropDownMenuRendererBase extends HeaderResourcesRendererBase {
protected Class getComponentClass() {
return UIDropDownMenu.class;
}
public boolean getRendersChildren() {
return true;
}
public void encodeChildren(FacesContext context, UIComponent component) throws IOException {
List flatListOfNodes = new LinkedList();
String width = (String)component.getAttributes().get("popupWidth");
flatten(component.getChildren(), flatListOfNodes);
processLayer(context, component, width);
for (Iterator iter = flatListOfNodes.iterator(); iter.hasNext();) {
UIMenuGroup node = (UIMenuGroup) iter.next();
if (node.isRendered() && !node.isDisabled()) processLayer(context, node, width);
}
}
public void processLayer(FacesContext context, UIComponent layer, String width) throws IOException {
String clientId = layer.getClientId(context);
ResponseWriter writer = context.getResponseWriter();
writer.startElement("div", layer);
writer.writeAttribute("id", clientId+"_menu", null);
writer.writeAttribute("class", "dr-menu-list-border rich-menu-list-border", null);
writer.writeAttribute("style", "visibility: hidden; z-index: 2; ", null);
writer.startElement("div", layer);
writer.writeAttribute("class", "dr-menu-list-bg rich-menu-list-bg", null);
encodeItems(context, layer);
writer.startElement("div", layer);
writer.writeAttribute("class", "dr-menu-list-strut rich-menu-list-strut", null);
writer.startElement("img", layer);
writer.writeAttribute("width", "1", null);
writer.writeAttribute("height", "1", null);
writer.writeAttribute("alt", "", null);
writer.writeAttribute("border", "0", null);
writer.writeAttribute("style", width!=null && width.length() > 0 ? "width: " + HtmlUtil.qualifySize(width) : "", null);
writer.writeAttribute("src",
getResource("/org/richfaces/renderkit/html/images/spacer.gif").getUri(context, null),
null);
writer.endElement("img");
writer.endElement("div");
writer.endElement("div");
writer.endElement("div");
writer.startElement("iframe", layer);
writer.writeAttribute("src",
getResource("/org/richfaces/renderkit/html/images/spacer.gif")
.getUri(context, null), null);
writer.writeAttribute("id", clientId+"_menu_iframe", null);
writer.writeAttribute("class", "underneath_iframe", null);
writer.writeAttribute("style", "position:absolute; z-index: 1;", null);
writer.endElement("iframe");
writer.startElement("script", layer);
writer.writeAttribute("id", clientId+"_menu_script", null);
writer.writeAttribute("type", "text/javascript", null);
encodeScript(context, layer);
writer.endElement("script");
AjaxContext ajaxContext = AjaxContext.getCurrentInstance();
Set renderedAreas = ajaxContext.getAjaxRenderedAreas();
renderedAreas.add(clientId + "_menu_iframe");
renderedAreas.add(clientId + "_menu_script");
}
public void encodeItems(FacesContext context, UIComponent component) throws IOException {
List kids = component.getChildren();
Iterator it = kids.iterator();
while (it.hasNext()) {
UIComponent kid = (UIComponent)it.next();
if (kid instanceof UIMenuGroup || kid instanceof UIMenuItem || kid instanceof UIMenuSeparator) {
renderChild(context, kid);
}
}
}
private void flatten(List kids, List flatList){
if(kids != null){
for (Iterator iter = kids.iterator(); iter.hasNext();) {
UIComponent kid = (UIComponent) iter.next();
if (kid instanceof UIMenuGroup) {
UIMenuGroup node = (UIMenuGroup) kid;
flatList.add(node);
flatten(node.getChildren(), flatList);
}
}
}
}
public void encodeScript(FacesContext context, UIComponent component) throws IOException {
StringBuffer buffer = new StringBuffer();
JSFunction function = new JSFunction("new RichFaces.Menu.Layer");
function.addParameter(component.getClientId(context)+"_menu");
function.addParameter(component.getAttributes().get("showDelay"));
if (component instanceof UIDropDownMenu) {
function.addParameter(component.getAttributes().get("hideDelay"));
}
else{
function.addParameter(""+300);
}
function.appendScript(buffer);
if (component instanceof UIMenuGroup) {
buffer.append(".");
function = new JSFunction("asSubMenu");
function.addParameter(component.getParent().getClientId(context)+"_menu");
function.addParameter("ref"+component.getClientId(context));
String evt = (String) component.getAttributes().get("event");
if(evt == null || evt.trim().length() == 0){
evt = "onmouseover";
}
function.addParameter(evt);
ScriptOptions Optionssub = new ScriptOptions(component);
Optionssub.addOption("onopen", component.getAttributes().get("onopen"));
Optionssub.addOption("onclose", component.getAttributes().get("onclose"));
Optionssub.addOption("direction", component.getAttributes().get("direction"));
function.addParameter(Optionssub);
function.appendScript(buffer);
} else {
buffer.append(".");
function = new JSFunction("asDropDown");
function.addParameter(component.getClientId(context));
String evt = (String) component.getAttributes().get("event");
if(evt == null || evt.trim().length() == 0){
evt = "onmouseover";
}
function.addParameter(evt);
function.addParameter("onmouseout");
ScriptOptions Options = new ScriptOptions(component);
Options.addOption("direction", component.getAttributes().get("direction"));
Options.addOption("jointPoint", component.getAttributes().get("jointPoint"));
Options.addOption("verticalOffset", component.getAttributes().get("verticalOffset"));
Options.addOption("horizontalOffset", component.getAttributes().get("horizontalOffset"));
Options.addOption("oncollapse", component.getAttributes().get("oncollapse"));
Options.addOption("onexpand", component.getAttributes().get("onexpand"));
Options.addOption("onitemselect", component.getAttributes().get("onitemselect"));
Options.addOption("ongroupactivate", component.getAttributes().get("ongroupactivate"));
function.addParameter(Options);
function.appendScript(buffer);
}
List children = component.getChildren();
for(Iterator it = children.iterator();it.hasNext();) {
UIComponent kid = (UIComponent)it.next();
String itemId = null;
int flcloseonclick=1;
int flagGroup = 0;
if (kid instanceof UIMenuItem) {
UIMenuItem MenuItem=(UIMenuItem)kid;
itemId = kid.getClientId(context);
if (MenuItem.isDisabled()){
flcloseonclick=0;
}
} else if (kid instanceof UIMenuGroup) {
UIMenuGroup menuGroup=(UIMenuGroup)kid;
itemId = "ref" + kid.getClientId(context);
flcloseonclick=0;
if (menuGroup.isDisabled()) flagGroup = 2; else flagGroup = 1;
}
if(itemId != null){
function = new JSFunction("addItem");
function.addParameter(itemId);
function.addParameter(new Integer(flcloseonclick));
ScriptOptions options = new ScriptOptions(kid);
options.addOption("onmouseout", kid.getAttributes().get("onmouseout"));
options.addOption("onmouseover", kid.getAttributes().get("onmouseover"));
options.addOption("flagGroup", new Integer(flagGroup));
String tmp = (String)kid.getAttributes().get("selectClass");
if (tmp != null && tmp.length() > 0) options.addOption("selectClass", tmp);
function.addParameter(options);
buffer.append('.');
function.appendScript(buffer);
}
}
ResponseWriter out = context.getResponseWriter();
String script =buffer.append(";").toString();
out.write(script);
}
}