zenweasel/cast_init.html

## cast_init.html
<!DOCTYPE html>
<html>
  <head>
    <title>Chromecast init</title>
    <script src="https://www.gstatic.com/cv/js/sender/v1/cast_sender.js"></script>
  </head>
  <body>
    <div id="message"></div>

    <script type="text/javascript">
      (function (window) {

        function showMessage(html) {
          window.document.getElementById("message").innerHTML = html;
        }

        if (!window.chrome) {
          // Not running in Chrome... inform users about it (or hide Chromecast functionality for non-Chrome users)
          showMessage("Only works in <a href=\"https://www.google.com/chrome\">Chrome</a>.");
          return;
        }

        if (!window.chrome.cast) {
          // shouldn't happen since we load cast_sender.js synchronously
          showMessage("Cast API not found, this shouldn't happen...");
          return;
        }

        /*
         * Check for Chromecast extension.
         * Unfortunately no nice way to know whether the Extension is missing in the API so far
         * Open feature request: https://code.google.com/p/google-cast-sdk/issues/detail?id=124
        */
        if (window.chrome.cast.extensionId) {
          waitForApi();
        } else {
          // Internal API call so might break, but best way for now without relying on a maximum timeout...
          window.chrome.cast.ApiBootstrap_.findInstalledExtension_(function (extensionId) {
            if (!extensionId) {
              // Extension not installed, prompt user to install it
              showMessage("Please install the <a href=\"https://chrome.google.com/webstore/detail/google-cast/boadgeojelhgndaghljhdicfkmllpafd\">Google Cast extension</a>.");
            } else {
              waitForApi();
            }
          });
        }

        function waitForApi() {
          showMessage("Waiting for API to become ready...");
          if (!window.chrome.cast.isAvailable) {
            window.setTimeout(waitForApi, 100);
          } else {
            initializeCastApi();
          }
        }

        function initializeCastApi() {
          // we can start using the Cast API now
          showMessage("Everything ready!");
        }

      }(this));
    </script>
  </body>
</html>
	<!DOCTYPE html>
	<html>
	<head>
	<title>Chromecast init</title>
	<script src="https://www.gstatic.com/cv/js/sender/v1/cast_sender.js"></script>
	</head>
	<body>
	<div id="message"></div>

	<script type="text/javascript">
	(function (window) {

	function showMessage(html) {
	window.document.getElementById("message").innerHTML = html;
	}

	if (!window.chrome) {
	// Not running in Chrome... inform users about it (or hide Chromecast functionality for non-Chrome users)
	showMessage("Only works in <a href=\"https://www.google.com/chrome\">Chrome</a>.");
	return;
	}

	if (!window.chrome.cast) {
	// shouldn't happen since we load cast_sender.js synchronously
	showMessage("Cast API not found, this shouldn't happen...");
	return;
	}

	/*
	* Check for Chromecast extension.
	* Unfortunately no nice way to know whether the Extension is missing in the API so far
	* Open feature request: https://code.google.com/p/google-cast-sdk/issues/detail?id=124
	*/
	if (window.chrome.cast.extensionId) {
	waitForApi();
	} else {
	// Internal API call so might break, but best way for now without relying on a maximum timeout...
	window.chrome.cast.ApiBootstrap_.findInstalledExtension_(function (extensionId) {
	if (!extensionId) {
	// Extension not installed, prompt user to install it
	showMessage("Please install the <a href=\"https://chrome.google.com/webstore/detail/google-cast/boadgeojelhgndaghljhdicfkmllpafd\">Google Cast extension</a>.");
	} else {
	waitForApi();
	}
	});
	}

	function waitForApi() {
	showMessage("Waiting for API to become ready...");
	if (!window.chrome.cast.isAvailable) {
	window.setTimeout(waitForApi, 100);
	} else {
	initializeCastApi();
	}
	}

	function initializeCastApi() {
	// we can start using the Cast API now
	showMessage("Everything ready!");
	}

	}(this));
	</script>
	</body>
	</html>