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+define("dijit/form/_ListBase", [
+ "dojo/_base/declare", // declare
+ "dojo/on",
+ "dojo/window" // winUtils.scrollIntoView
+], function(declare, on, winUtils){
+
+// module:
+// dijit/form/_ListBase
+
+return declare( "dijit.form._ListBase", null, {
+ // summary:
+ // Focus-less menu to handle UI events consistently
+ // Abstract methods that must be defined externally:
+ //
+ // - onSelect: item is active (mousedown but not yet mouseup, or keyboard arrow selected but no Enter)
+ // - onDeselect: cancels onSelect
+ // tags:
+ // private
+
+ // selected: DOMNode
+ // currently selected node
+ selected: null,
+
+ _listConnect: function(/*String|Function*/ eventType, /*String*/ callbackFuncName){
+ // summary:
+ // Connects 'containerNode' to specified method of this object
+ // and automatically registers for 'disconnect' on widget destroy.
+ // description:
+ // Provide widget-specific analog to 'connect'.
+ // The callback function is called with the normal event object,
+ // but also a second parameter is passed that indicates which list item
+ // actually received the event.
+ // returns:
+ // A handle that can be passed to `disconnect` in order to disconnect
+ // before the widget is destroyed.
+ // tags:
+ // private
+
+ var self = this;
+ return self.own(on(self.containerNode,
+ on.selector(
+ function(eventTarget, selector, target){
+ return eventTarget.parentNode == target;
+ },
+ eventType
+ ),
+ function(evt){
+ evt.preventDefault();
+ self[callbackFuncName](evt, this);
+ }
+ ));
+ },
+
+ selectFirstNode: function(){
+ // summary:
+ // Select the first displayed item in the list.
+ var first = this.containerNode.firstChild;
+ while(first && first.style.display == "none"){
+ first = first.nextSibling;
+ }
+ this._setSelectedAttr(first);
+ },
+
+ selectLastNode: function(){
+ // summary:
+ // Select the last displayed item in the list
+ var last = this.containerNode.lastChild;
+ while(last && last.style.display == "none"){
+ last = last.previousSibling;
+ }
+ this._setSelectedAttr(last);
+ },
+
+ selectNextNode: function(){
+ // summary:
+ // Select the item just below the current selection.
+ // If nothing selected, select first node.
+ var selectedNode = this.selected;
+ if(!selectedNode){
+ this.selectFirstNode();
+ }else{
+ var next = selectedNode.nextSibling;
+ while(next && next.style.display == "none"){
+ next = next.nextSibling;
+ }
+ if(!next){
+ this.selectFirstNode();
+ }else{
+ this._setSelectedAttr(next);
+ }
+ }
+ },
+
+ selectPreviousNode: function(){
+ // summary:
+ // Select the item just above the current selection.
+ // If nothing selected, select last node (if
+ // you select Previous and try to keep scrolling up the list).
+ var selectedNode = this.selected;
+ if(!selectedNode){
+ this.selectLastNode();
+ }else{
+ var prev = selectedNode.previousSibling;
+ while(prev && prev.style.display == "none"){
+ prev = prev.previousSibling;
+ }
+ if(!prev){
+ this.selectLastNode();
+ }else{
+ this._setSelectedAttr(prev);
+ }
+ }
+ },
+
+ _setSelectedAttr: function(/*DomNode*/ node){
+ // summary:
+ // Does the actual select.
+ if(this.selected != node){
+ var selectedNode = this.selected;
+ if(selectedNode){
+ this.onDeselect(selectedNode);
+ this.selected = null;
+ }
+ if(node){
+ this.selected = node;
+ winUtils.scrollIntoView(node);
+ this.onSelect(node);
+ }
+ }else if(node){
+ this.onSelect(node);
+ }
+ }
+});
+
+});