Sorry for the late reply.
You can try the following trick: insert a div element, set its display to off so that it doesn’t appear on the scene, set its dom to document.body and bind swipe event to this element.
var bodyElement = doc.getElement('Div_1');
bodyElement.dom = document.body;
bodyElement.bind('swipeleft', function(doc, e) {
// code to handle the event here
});
It works fine in a quick test but I’m not sure if it causes any other effects, please check it thoroughly.