WXWork/js/fastclick.js

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;(function () {
	'use strict';
	function FastClick(layer, options) {
		var oldOnClick;
		options = options || {};
		this.trackingClick = false;
		this.trackingClickStart = 0;
		this.targetElement = null;
		this.touchStartX = 0;
		this.touchStartY = 0;
		this.lastTouchIdentifier = 0;
		this.touchBoundary = options.touchBoundary || 10;
		this.layer = layer;
		this.tapDelay = options.tapDelay || 200;
		this.tapTimeout = options.tapTimeout || 700;
		if (FastClick.notNeeded(layer)) {return;}
		function bind(method, context) {
			return function() { return method.apply(context, arguments); };
		}
		var methods = ['onMouse', 'onClick', 'onTouchStart', 'onTouchMove', 'onTouchEnd', 'onTouchCancel'];
		var context = this;
		for (var i = 0, l = methods.length; i < l; i++) {
			context[methods[i]] = bind(context[methods[i]], context);
		}
		if (deviceIsAndroid) {
			layer.addEventListener('mouseover', this.onMouse, true);
			layer.addEventListener('mousedown', this.onMouse, true);
			layer.addEventListener('mouseup', this.onMouse, true);
		}
		layer.addEventListener('click', this.onClick, true);
		layer.addEventListener('touchstart', this.onTouchStart, false);
		layer.addEventListener('touchmove', this.onTouchMove, false);
		layer.addEventListener('touchend', this.onTouchEnd, false);
		layer.addEventListener('touchcancel', this.onTouchCancel, false);
		if (!Event.prototype.stopImmediatePropagation) {
			layer.removeEventListener = function(type, callback, capture) {
				var rmv = Node.prototype.removeEventListener;
				if (type === 'click') {rmv.call(layer, type, callback.hijacked || callback, capture);} else {rmv.call(layer, type, callback, capture);}
			};
			layer.addEventListener = function(type, callback, capture) {
				var adv = Node.prototype.addEventListener;
				if (type === 'click') {
					adv.call(layer, type, callback.hijacked || (callback.hijacked = function(event) {
						if (!event.propagationStopped) {callback(event);}
					}), capture);
				} else {
					adv.call(layer, type, callback, capture);
				}
			};
		}
		if (typeof layer.onclick === 'function') {
			oldOnClick = layer.onclick;
			layer.addEventListener('click', function(event) {oldOnClick(event);}, false);
			layer.onclick = null;
		}
	}
	var deviceIsWindowsPhone = navigator.userAgent.indexOf("Windows Phone") >= 0;
	var deviceIsAndroid = navigator.userAgent.indexOf('Android') > 0 && !deviceIsWindowsPhone;
	var deviceIsIOS = /iP(ad|hone|od)/.test(navigator.userAgent) && !deviceIsWindowsPhone;
	var deviceIsIOS4 = deviceIsIOS && (/OS 4_\d(_\d)?/).test(navigator.userAgent);