src/js/controls/Tab.js
function( x, y ) {
		if( !this.header._canDestroy )
			return null;
		if( this.contentItem.parent.isMaximised === true ) {
			this.contentItem.parent.toggleMaximise();
		}
		new lm.controls.DragProxy(
			x,
			y,
			this._dragListener,
			this._layoutManager,
			this.contentItem,
			this.header.parent
		);
	}
function( x, y ) {
		if( !this.header._canDestroy )
			return null;
		if( this.contentItem.parent.isMaximised === true ) {
			this.contentItem.parent.toggleMaximise();
		}
		new lm.controls.DragProxy(
			x,
			y,
			this._dragListener,
			this._layoutManager,
			this.contentItem,
			this.header.parent
		);
	}
function ( x , y ) { if ( ! this . header . _canDestroy ) return null ; if ( this . contentItem . parent . isMaximised === true ) { this . contentItem . parent . toggleMaximise ( ) ; } new lm . controls . DragProxy ( x , y , this . _dragListener , this . _layoutManager , this . contentItem , this . header . parent ) ; }
Callback for the DragListener

@param   {Number} x The tabs absolute x position
@param   {Number} y The tabs absolute y position

@private
@returns {void}
Callback for the DragListener