"Screen Share Stopped" Event in Chrome

1

I’d like my online classroom application to react when the users presses
the “Stop Sharing” button in the floating window that Chrome displays when
a user is sharing their screen.

Right now, when the user presses this button, it looks to all the
suscribers like the stream is still open, it just stops updating. I would
instead like to update the UI for both the publisher ("you have stopped
sharing your screen. Click here to start again…) and the subscribers.

Is there an event I can listen on the Room or Stream object? Or some other
way to make this happen?

2

You have to listen to the stream ended event on the screenStream

when your screenStream receives the event access-accepted, it gets the stream stream property on which you can listen to events

screenStream.addEventListener(“access-accepted”, () => {
…
screenStream.stream.getVideoTracks()[0].addEventListener(‘ended’, () =>{
//do whatever you want here and unpublish the stream
room.unpublish(screenStream);
});
});