web-activity-video.js

if ('MozActivity' in window) { // feature detection
  // When getting elements, like document.getElementsByClassName('video-links')
	// rather use event delegation, like
	// `jQuery(document).on('click', 'video', fn)
	document.getElementById('video-1').onclick = function(evt) {
		evt.preventDefault(); // Prevent click behaviour

		console.log("Launching Video!");
		var activity = new MozActivity({
			name: "view",
			data: {
				type: "video/mp4",
				url: 'http://www.archive.org/download/Mario1_507/Mario1_507_512kb.mp4'
			}
		});
		// Optional events (you can fire and forget)
		activity.onsuccess = function() {
			console.log("Video finished playing, want to react?");
		};
		activity.onerror = function() {
			console.log("Video wasn't played, want to react?");
		};
	};
}