kmallea · December 2, 2022 04:50 · ChaseFlorell · Jan 16, 2014 · andrepura · Sep 19, 2014
diff --git a/uriSchemeWithHyperlinkFallback.js b/uriSchemeWithHyperlinkFallback.js
 (function () {

    // tries to execute the uri:scheme
    function uriSchemeWithHyperlinkFallback(uri, href) {
        var start, end, elapsed;

        // start a timer
        start = new Date().getTime();

        // attempt to redirect to the uri:scheme
        // the lovely thing about javascript is that it's single threadded.
        // if this WORKS, it'll stutter for a split second, causing the timer to be off
        document.location = uri;

        // end timer
        end = new Date().getTime();

        elapsed = (end - start);

        // if there's no elapsed time, then the scheme didn't fire, and we head to the url.
        if (elapsed < 1) {
            document.location = href;
        }
    }



    // `intent` is the class we're using to wire this up. Use whatever you like.
    $('a.intent').on('click', function (event) {
        uriSchemeWithHyperlinkFallback($(this).data('scheme'), $(this).attr('href'));
        // we don't want the default browser behavior kicking in and screwing everything up.
        event.preventDefault();
    });
 })();
diff --git a/x-demo.html b/x-demo.html
 <html>
    <head>
        <script src="http://code.jquery.com/jquery-1.9.1.min.js"></script>
        <script src="uriSchemeWithHyperlinkFallback.js"></script>
    </head>
    <body>
        <!-- links will work as expected where javascript is disabled-->
         <a class="intent"   
            href="http://facebook.com/someProfile"   
            data-scheme="fb://profile/10000">facebook</a>
    </body>
 </html>
	(function () {

	// tries to execute the uri:scheme
	function uriSchemeWithHyperlinkFallback(uri, href) {
	var start, end, elapsed;

	// start a timer
	start = new Date().getTime();

	// attempt to redirect to the uri:scheme
	// the lovely thing about javascript is that it's single threadded.
	// if this WORKS, it'll stutter for a split second, causing the timer to be off
	document.location = uri;

	// end timer
	end = new Date().getTime();

	elapsed = (end - start);

	// if there's no elapsed time, then the scheme didn't fire, and we head to the url.
	if (elapsed < 1) {
	document.location = href;
	}
	}



	// `intent` is the class we're using to wire this up. Use whatever you like.
	$('a.intent').on('click', function (event) {
	uriSchemeWithHyperlinkFallback($(this).data('scheme'), $(this).attr('href'));
	// we don't want the default browser behavior kicking in and screwing everything up.
	event.preventDefault();
	});
	})();
	<html>
	<head>
	<script src="http://code.jquery.com/jquery-1.9.1.min.js"></script>
	<script src="uriSchemeWithHyperlinkFallback.js"></script>
	</head>
	<body>
	<!-- links will work as expected where javascript is disabled-->
	<a class="intent"
	href="http://facebook.com/someProfile"
	data-scheme="fb://profile/10000">facebook</a>
	</body>
	</html>