source: Dev/trunk/src/client/dojox/widget/TitleGroup.js

define(["dojo", "dijit/registry", "dijit/_Widget", "dijit/TitlePane"], function(dojo, registry, widget, titlepane){
        
        var tp = titlepane.prototype,
                lookup = function(){
                        // generic handler function for click and keypress
                        var parent = this._dxfindParent && this._dxfindParent();
                        parent && parent.selectChild(this);
                }
        ;
        
        // this might hide this uberprivate function from the docparser.
        tp._dxfindParent = function(){
                // summary:
                //              TitlePane's MUST be first-children of a TitleGroup. only used by
                //              `dojox.widget.TitleGroup`. Finds a possible parent TitleGroup of a TitlePane
                var n = this.domNode.parentNode;
                if(n){
                        n = registry.getEnclosingWidget(n);
                        return n && n instanceof dojox.widget.TitleGroup && n;
                }
                return n;
        };

        // if we click our own title, hide everyone
        dojo.connect(tp, "_onTitleClick", lookup);
        dojo.connect(tp, "_onTitleKey", function(e){
                // if we're tabbing through the items in a group, don't do toggles.
                // if we hit enter, let it happen.
                if(!(e && e.type && e.type == "keypress" && e.charOrCode == dojo.keys.TAB)){
                        lookup.apply(this, arguments);
                }
        });
                
        return dojo.declare("dojox.widget.TitleGroup", dijit._Widget, {
                // summary:
                //              A container which controls a series of `dijit.TitlePane`s,
                //              allowing one to be visible and hiding siblings
                // description:
                //              A container which controls a series of `dijit.TitlePane`s,
                //              allowing one to be visible and hiding siblings. Behaves similarly
                //              to a `dijit.layout.AccordionContainer` in that the children
                //              are all stacked, though merges the TitlePane behavior of
                //              variable height
                // example:
                //      |       var group = new dojox.widget.TitleGroup().placeAt(dojo.body());
                //      |       new dijit.TitlePane({ title:"One" }, "fromsource").placeAt(group);
                //      |       new dijit.TitlePane({ title:"Remote", href:"foo.html" }).placeAt(group);
                
                "class":"dojoxTitleGroup",

                addChild: function(widget, position){
                        // summary:
                        //              Add a passed widget reference to this container at an optional
                        //              position index.
                        // widget: dijit.TitlePane
                        //              A widget reference to add
                        // position: String|Int?
                        //              An optional index or position to pass. defaults to "last"
                        return widget.placeAt(this.domNode, position); // dijit.TitlePane
                },
                
                removeChild: function(widget){
                        // summary:
                        //              Remove the passed widget from this container. Does not destroy
                        //              child.
                        
                        this.domNode.removeChild(widget.domNode);
                        return widget;
                },
                
                selectChild: function(widget){
                        // summary:
                        //              close all found titlePanes within this group, excluding
                        //              the one the we pass to select
                        widget && dojo.query("> .dijitTitlePane", this.domNode).forEach(function(n){
                                var tp = registry.byNode(n);
                                tp && tp !== widget && tp.open && tp.toggle(); // could race if open is set onEnd of slide
                        });
                        return widget; // dijit/TitlePane
                }
        
        });

});