InvestigateMenuSelectWidget.js
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InvestigateMenuSelectWidget.js
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	/**
	* Investigate Menu Select Widget
	*
	* @class
	*
	* @constructor
	* @param {Object} [config] Configuration options
	*/

	const InvestigateMenuSelectWidget = function ( config ) {
	// Parent constructor
	InvestigateMenuSelectWidget.super.call( this, config );
	};

	/* Setup */

	OO.inheritClass( InvestigateMenuSelectWidget, OO.ui.MenuSelectWidget );

	/**
	* @inheritdoc
	*/
	InvestigateMenuSelectWidget.prototype.onDocumentMouseUp = function ( e ) {
	if ( !this.selecting ) {
	const item = this.findTargetItem( e );
	if ( item && item.isSelectable() ) {
	this.selecting = item;
	}
	}
	if ( !this.isDisabled() && e.which === OO.ui.MouseButtons.LEFT && this.selecting ) {
	this.emit( 'investigate', this.selecting );
	}
	return InvestigateMenuSelectWidget.super.prototype.onDocumentMouseUp.call( this, e );
	};

	/**
	* @inheritdoc
	*/
	InvestigateMenuSelectWidget.prototype.onDocumentKeyDown = function ( e ) {
	const selected = this.findSelectedItems(),
	currentItem = this.findHighlightedItem() \|\| (
	Array.isArray( selected ) ? selected[ 0 ] : selected
	);

	if ( e.keyCode === OO.ui.Keys.ENTER ) {
	this.emit( 'investigate', currentItem );
	}

	return InvestigateMenuSelectWidget.super.prototype.onDocumentKeyDown.call( this, e );
	};

	module.exports = InvestigateMenuSelectWidget;