Pause When Window Not in Focus

[JAA]

I want to run myPixi.ticker.stop() when the window loses focus in any way, eg minimize, click a different tab or even closing the window.

Q: Is there a javascript event that covers all the possibilities?

Q2: Is there a javascript event that covers all possible methods of a window regaining focus, eg a return from minimize, reclicking the tab etc?

 

 

[ivan.popelyshev]

That's how RAF (requestAnimationFrame) works, you dont have to do anything.

Then there's different question: how to calculate something when window is minimized? Add extra setInterval with stuff you need to calculate somewhere,m that checks if last frame was too long ago.

[themoonrat]

Indeed, RequestAnimationFrame will stop when the the browser things it's not worth rendering anything to the window because it's minimized.

There is however the Page Visibility API to detect this event (https://developer.mozilla.org/en-US/docs/Web/API/Page_Visibility_API) - This could be useful to pause sounds when you know the game has become not visible, or to put up a pause menu if you wish

[JAA]

Thanks @ivan.popelyshev and @themoonrat. Your combined answers where exactly the info I was looking for.