presentation-cast

This is a polyfill of the Presentation API that leverages the Google Cast Sender SDK for Chrome. To use it you must have a Chromecast available on your browser's WiFi network, use the Chrome browser, and install the Google Cast extension.

Currently this polyfill is only intended to be used on pages that control (startSession/joinSession) presentations, not on pages that render presentations. Presentation rendering is supplied by a modified version of the slidyremote Cast application.

Additionally, support is provided for discovering and launching DIAL applications.

How to use

To use the polyfill:

<script src="http://mfoltzgoogle.github.io/presentation-cast/presentation_cast.js"
        type="text/javascript"></script>
<script>
  // Set up UI to request presentation, etc.
  var initializeController = function() {
    ...
  }

  // Define a function in your page that will be called when the polyfill is
  // ready to use.
  window['__onPresentationAvailable'] = initializeController;
</script>
<link href="http://www.example.com/#__castAppId__=B46B8FE4" rel="default-presentation"/>

To request a DIAL application, use the dialAppName and dialPostData parameters in the URL fragment, as follows:

<link href="http://www.example.com/#__dialAppName__=Netflix/__dialPostDat__=667ouy7==" rel="default-presentation"/>

See the demo below for a more complete example of Presentation API use.

Missing features

The polyfill currently does not persist the presentation state to localStorage so joinSession is not fully implemented, e.g. you cannot yet:

1. Join an existing presentation by reloading the same tab
2. Join an existing presentation from a different tab
3. Close and rejoin an existing presentation

Demos

Each demo directory has a README.md file with implementation notes.

Slideshow

https://mfoltzgoogle.github.io/presentation-cast/demo/slideshow/