How to detect when user switch tab in browser

General
1

Hi,

I have a problem with my application:
I’m automatically refreshing some of the components from server side, but when, for example in chrome, I switch to another tab, data stop being refreshed. Then when I return about five minutes later, all requests are trying to be solved at once. That makes the application freeze and even reload takes a long time. So I need some way to detect when user switches tabs so I can stop sending update requests. Or any other solution that would solve my problem. Any help would be appreciated.

Thanks

Martin

2

Hi, how do you refresh your components? If you are using Server Push to do the refreshing (https://vaadin.com/docs/v14/flow/advanced/tutorial-push-access.html), then it shouldn’t matter whether or not the tab is focused in the browser.