カフェスクリプトで外部リンクトラッキング用のテスト

event.coffee

gaConf = {
	linkFilter : {
		#外部サイトへのリンクトラック true or false
		offsite : true,
		#除外サイト
		excludeLink : [
			/google/,
			/livedoor/
		],
		internalTrack : {
			"pdf" : /\.pdf$/,
			"zip" : /\.zip$/,
			"ppt" : /\.ppt$/,
			"doc" : /\.doc$/,
			"mail" : /^mailto\:/
		}
	}
}


class EventCoffee
	constructor : (filter) ->
		@filter = filter
	
	getEvent : (arg, arg2) ->
		console.log("arg: #{arg}")
		console.log("arg2: #{arg2}")
		alert(arg.href)
	
	observe : (element, eventName, handler)->
		false if element?
		if(element.addEventListener)
			element.addEventListener(eventName, handler, false)
		else if(element.attachEvent)
			element.attachEvent('on'+eventName, handler);
		else
			false

	binding : (binded, func, arg)->
		()->func.apply(binded, arg)

	filterLink : (hrefUrl)->
		res = []
		hostname = new RegExp("^" + location.host)
		domUrl = hrefUrl.replace(/http(s)?:\/\//, "")
		#内部リンク
		if(domUrl.match(hostname))
			for key,val of @filter.internalTrack
				if(domUrl.match(val))
					res.push(true, key)
					return res
			res.push(false)
			return res
		else
		#外部リンク
			for val in @filter.excludeLink
				if(domUrl.match(val))
					res.push(false)
					return res
			res.push(true, "outboundLink")
			return res
		return res

	linkListener : (tagName='a', func=@getEvent)->
		for i in document.getElementsByTagName(tagName)
			res = @filterLink(i.href)
			@observe(i, "click", @binding(i, func, [i, res])) if res[0]==true
		false

window.eventCoffee = new EventCoffee(gaConf.linkFilter)