chromeExtension/background.html at master · ahoseinian/chromeExtension · GitHub

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<html>
<head>
	<script src='scripts/jquery-1.6.1.min.js'></script>
	<script src="scripts/parse.js"></script>
	<script>


		function showNotificationAndSetCookie(domain, name){
					//show notification
					var notification = webkitNotifications.createHTMLNotification(
					  'notification.html'
					);
					notification.show();

					//then set today cookie to prevent other shows in today
		    		var today = String(new Date().getDate());//get todays date
					chrome.cookies.set({ url: domain, name: name, value: (today), expirationDate: (new Date().getTime()/1000) + (24*3600) });//set today date in a cookie with a 24 hours life time

		}

		function getCookies(domain, name, callback) {
			//get out cookie from chrome
		    chrome.cookies.get({"url": domain, "name": name}, function(cookie) {
		    	if(cookie == null){//if cookie is not set we set it manualy
		    		showNotificationAndSetCookie(domain,name);
		    	}
		    	chrome.cookies.get({"url": domain, "name": name}, function(cookie) {//get the date from cookie that set before
			        if(callback) {
			            callback(cookie.value)
			        }
		    	});
		    });
		}


		/**
		*this function check if today date is set in cookie (means that we show this extension massage once today)
		*prevent to show the massage agian
		*else if this is the frist time that user see this message
		*show the massage and set the cookie to prevent from next shows in this day
		*/
		getCookies("http://g5line.com/", "todayDate", function(date) {
			if((String(new Date().getDate())) != date)
				showNotificationAndSetCookie("http://g5line.com/","todayDate");
		});


		function fetch_feed(url, callback) {
			var xhr = new XMLHttpRequest();
		    xhr.onreadystatechange = function(data) {
		      if (xhr.readyState == 4) {
		        if (xhr.status == 200) {
		          var data = xhr.responseText;
		          callback(data);
		        } else {
		          callback(null);
		        }
		      }
		    }
		    // Note that any URL fetched here must be matched by a permission in
		    // the manifest.json file!
		    xhr.open('GET', url, true);
		    xhr.send();
		}


		function onRequest(request, sender, callback) {
			if (request.action == 'fetch_feed') {
	          fetch_feed(request.url, callback);
	        }
		}

		// Wire up the listener.
		chrome.extension.onRequest.addListener(onRequest);


	</script>
</head>
<body>
</body>
</html>