define([
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"dojo/_base/declare", // declare
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"dojo/keys", // keys.DOWN_ARROW
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"./_MenuBase",
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"dojo/text!./templates/MenuBar.html"
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], function(declare, keys, _MenuBase, template){
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// module:
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// dijit/MenuBar
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return declare("dijit.MenuBar", _MenuBase, {
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// summary:
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// A menu bar, listing menu choices horizontally, like the "File" menu in most desktop applications
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templateString: template,
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baseClass: "dijitMenuBar",
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// By default open popups for MenuBar instantly
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popupDelay: 0,
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// _isMenuBar: [protected] Boolean
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// This is a MenuBar widget, not a (vertical) Menu widget.
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_isMenuBar: true,
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// parameter to dijit.popup.open() about where to put popup (relative to this.domNode)
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_orient: ["below"],
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_moveToPopup: function(/*Event*/ evt){
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// summary:
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// This handles the down arrow key, opening a submenu if one exists.
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// Unlike _MenuBase._moveToPopup(), will never move to the next item in the MenuBar.
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// tags:
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// private
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if(this.focusedChild && this.focusedChild.popup && !this.focusedChild.disabled){
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this.onItemClick(this.focusedChild, evt);
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}
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},
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focusChild: function(item){
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// Overload focusChild so that whenever a new item is focused and the menu is active, open its submenu immediately.
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this.inherited(arguments);
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if(this.activated && item.popup && !item.disabled){
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this._openItemPopup(item, true);
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}
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},
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_onChildDeselect: function(item){
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// override _MenuBase._onChildDeselect() to close submenu immediately
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if(this.currentPopupItem == item){
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this.currentPopupItem = null;
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item._closePopup(); // this calls onClose
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}
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this.inherited(arguments);
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},
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// Arrow key navigation
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_onLeftArrow: function(){
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this.focusPrev();
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},
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_onRightArrow: function(){
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this.focusNext();
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},
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_onDownArrow: function(/*Event*/ evt){
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this._moveToPopup(evt);
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},
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_onUpArrow: function(){
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},
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onItemClick: function(/*dijit/_WidgetBase*/ item, /*Event*/ evt){
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// summary:
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// Handle clicks on an item. Also called by _moveToPopup() due to a down-arrow key on the item.
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// Cancels a dropdown if already open and click is either mouse or space/enter.
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// Don't close dropdown due to down arrow.
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// tags:
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// private
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if(item.popup && item.popup.isShowingNow && (!/^key/.test(evt.type) || evt.keyCode !== keys.DOWN_ARROW)){
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item.focusNode.focus();
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this._cleanUp(true);
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}else{
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this.inherited(arguments);
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}
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}
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});
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});
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