Detect change of browser tabs with javascript

Question

is there some way of detecting using javascript that a user has switched to a different tab in the same browser window.

Additionally is there a way to detect a user has switched to a different window than the browser?

thank you

Creosote

No and no - these events are outside the web page's control. – Improvisation

Well as the guys below pointed out, the window.onblur event works quite fine for my requirements. – Creosote

Okay - although that just tells you that the current window lost focus, not who it lost focus to. Anyway, if Alnitak's answer helped you, consider marking it accepted using the check mark! – Improvisation

It does not matter really who it lost focus to, a website does not need to know everything. And thx for the hint with the check mark, I am new here – Creosote

Answer 1

Trap the window.onblur event.

It's raised whenever the current window (or tab) loses focus.

Dutiable

Answer 2

Most probably there is no standards javascript for this. Some browsers might support it but normally there is only a window.onblur event to find out the user has gone away from the current window.

Branchiopod

Answer 3

The Page Visibility API was designed to do this. Have a read at this URL:

https://developer.mozilla.org/en-US/docs/Web/Guide/User_experience/Using_the_Page_Visibility_API

Fillagree