LayoutTests/media/remoteplayback-target-availability.html - WebKit - Git at Google

 <html>
     <head>
         <script src='media-file.js'></script>
         <script src='video-test.js'></script>
         <script>
             var video;
             var callbackId;

             var nextStep;

             function start()
             {
                 findMediaElement();

                 if (window.internals) {
                     internals.setMockMediaPlaybackTargetPickerEnabled(true);
                     internals.settings.setAllowsAirPlayForMediaPlayback(true);
                 }

                 consoleWrite('<br>** test initial callback when device is unavailable');

                 video.remote.watchAvailability(step).then(setCallbackId).catch(failTest);
                 nextStep = initial;
             }

             function setCallbackId(id)
             {
                 callbackId = id;
             }

             function step(available)
             {
                 consoleWrite(`CALLBACK( available=${available} )`);

                 if (nextStep)
                     nextStep(available);
             }

             function initial(available)
             {
                 consoleWrite('<br>** simulate device becoming available');
                 if (window.internals)
                     internals.setMockMediaPlaybackTargetPickerState('Sleepy TV', 'DeviceAvailable');
                 nextStep = haveTarget;
             }

             function haveTarget(available)
             {
                 consoleWrite('<br>** test initial callback when device is available');

                 video.remote.cancelWatchAvailability(callbackId);
                 video.remote.watchAvailability(step).then(setCallbackId).catch(failTest);
                 nextStep = initialWithTarget;
             }

             function initialWithTarget(available)
             {
                 consoleWrite('<br>** simulate device becoming unavailable');
                 if (window.internals)
                     internals.setMockMediaPlaybackTargetPickerState('Sleepy TV', 'DeviceUnavailable');
                 nextStep = endTest;

             }
         </script>
     </head>

     <body onload='start()'>
         <video controls></video>
         <p>Test that 'RemotePlaybackAvailabilityCallback' callback is called when playback devices come and go.</p>
     </body>
 </html>
	<html>
	<head>
	<script src='media-file.js'></script>
	<script src='video-test.js'></script>
	<script>
	var video;
	var callbackId;

	var nextStep;

	function start()
	{
	findMediaElement();

	if (window.internals) {
	internals.setMockMediaPlaybackTargetPickerEnabled(true);
	internals.settings.setAllowsAirPlayForMediaPlayback(true);
	}

	consoleWrite('<br>** test initial callback when device is unavailable');

	video.remote.watchAvailability(step).then(setCallbackId).catch(failTest);
	nextStep = initial;
	}

	function setCallbackId(id)
	{
	callbackId = id;
	}

	function step(available)
	{
	consoleWrite(`CALLBACK( available=${available} )`);

	if (nextStep)
	nextStep(available);
	}

	function initial(available)
	{
	consoleWrite('<br>** simulate device becoming available');
	if (window.internals)
	internals.setMockMediaPlaybackTargetPickerState('Sleepy TV', 'DeviceAvailable');
	nextStep = haveTarget;
	}

	function haveTarget(available)
	{
	consoleWrite('<br>** test initial callback when device is available');

	video.remote.cancelWatchAvailability(callbackId);
	video.remote.watchAvailability(step).then(setCallbackId).catch(failTest);
	nextStep = initialWithTarget;
	}

	function initialWithTarget(available)
	{
	consoleWrite('<br>** simulate device becoming unavailable');
	if (window.internals)
	internals.setMockMediaPlaybackTargetPickerState('Sleepy TV', 'DeviceUnavailable');
	nextStep = endTest;

	}
	</script>
	</head>

	<body onload='start()'>
	<video controls></video>
	<p>Test that 'RemotePlaybackAvailabilityCallback' callback is called when playback devices come and go.</p>
	</body>
	</html>