swipe.js

var toggleAction = function (event) {
	body.toggleClass('nav-show');

	html.toggleClass('no-scroll');

	navContent.all('ul ul .selected').each(
		function (e) {
			e.ancestor('ul').removeClass('aui-helper-hidden');
			e.ancestor('.selected').one('.has-child-marker').addClass('child-show');
		}
	);
};

if (body.hasClass('mobile')) {
	if (body.hasClass('mobile-enabled')) {
		A.all('ul').each(
			function (f) {
				if (f.hasClass('child-menu') || f.hasClass('grandchild-menu') && !f.hasClass('aui-helper-hidden')) {
					f.addClass('aui-helper-hidden');
				}
			}
		);

		if(toggle) {
			toggle.on(
				'click',
				function (e) {
					toggleAction();
				}
			);
		}

		navContent.all('.has-child-marker').each(
			function (e) {
				e.on(
					'click',
					function (event) {
						menuTrigger(event);
					}
				);
			}
		);


		body.on(
			"gesturemovestart", 
			function (e) {
				var item = e.currentTarget;
				var MIN_SWIPE = 20;
				var target = e.target;

				item.setData("swipeStart", e.pageX);

				item.once(
					"gesturemoveend",
					function (e) {
						var swipeStart = item.getData("swipeStart");
						var swipeEnd = e.pageX;
						var isSwipeLeft = (swipeStart-swipeEnd) > MIN_SWIPE;
						var isSwipeRight = (swipeEnd-swipeStart) > MIN_SWIPE;
						var navOut = body.hasClass('nav-show');
						var swipeLeft = isSwipeLeft && navOut;
						var swipeRight = isSwipeRight && !navOut;

						if (swipeLeft || swipeRight) {
							toggleAction();
						}
					}
				)					
			}
		);
	}
}