Event listener across tabs

Question

I have two windows: window A and window B.

window A and window B are active on the same Web-browser.

window A contains a script.

Questions:

Is it possible for window A to listen to events that are happening in windows B such as keyup?

Please provide some explanation.

I'm not sure about `keyup` in question, but there are some events possible, like focus iirc. — roberrrt-s, Oct 26 '16 at 08:20

score 1 · Answer 1 · edited May 23 '17 at 11:48

1

In window B you set a cookie and in window A you create a setTimeout function that every "x" milliseconds check if there are any new cookie.

Look at this: Javascript communication between browser tabs/windows

edited May 23 '17 at 11:48

Community

1
1

answered Oct 26 '16 at 08:30

David Ginanni

1,617
15
9

3

That's a pretty messy solution, but I like it! What else is JavaScript for than messy solutions, right? – BoltKey Sep 04 '17 at 20:08
Consider `window`'s storage event https://developer.mozilla.org/en-US/docs/Web/API/Window/storage_event – giovannipds Jan 10 '20 at 15:15

score 0 · Answer 2 · answered Oct 26 '16 at 08:20

0

If window A is a parent of window B (A opened B) then it's possible to find the element and add event listener. Also you can use postMessage to communticate between windows.

answered Oct 26 '16 at 08:20

Pavel Staselun

1,970
1
12
24

score 0 · Answer 3 · answered Feb 23 '23 at 11:50

0

Window A can listen to Window B events using sockets, checkout socket.io library. Where we need to emit an event and listen across all windows or specific windows can be possible using this library.

answered Feb 23 '23 at 11:50

siva mirrappalli

1
1

Event listener across tabs

3 Answers3