/*
* jQuery Double Tap
* Developer: Sergey Margaritov (sergey@margaritov.net)
* Date: 22.10.2013
* Based on jquery documentation http://learn.jquery.com/events/event-extensions/
*/
(function($){
$.event.special.doubletap = {
bindType: 'touchend',
delegateType: 'touchend',
handle: function(event) {
var handleObj = event.handleObj,
targetData = jQuery.data(event.target),
now = new Date().getTime(),
delta = targetData.lastTouch ? now - targetData.lastTouch : 0,
delay = delay == null ? 300 : delay;
if (delta < delay && delta > 30) {
targetData.lastTouch = null;
event.type = handleObj.origType;
['clientX', 'clientY', 'pageX', 'pageY'].forEach(function(property) {
event[property] = event.originalEvent.changedTouches[0][property];
})
// let jQuery handle the triggering of "doubletap" event handlers
handleObj.handler.apply(this, arguments);
} else {
targetData.lastTouch = now;
}
}
};
})(jQuery);