Event for when devtools is open or closed?

[Toby Ho]

Hello all,

I have been successful in getting notification for when an extension dev tools panel created by me is shown or hidden. However, the problem is when the entirety of the dev tools is closed, I am not notified, which leaves me in a weird state on the contentscript side of things. Is it possible to be notified that the user has open or closed dev tools?

Thanks,

Toby

[John J Barton]

how about window.onbeforeunload or unload event handler?

jjb

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[Toby Ho]

I figured out how to do this so I'll share it here in case someone else runs into the same problem.

1. I establish a connection between the page in my devtools panel and the event page. To do this you'd use chrome.runtime.onConnect on the event page side and chrome.runtime.connect() on the devtools side, see http://developer.chrome.com/extensions/messaging.html for more.

2. On the event page side, when a connection is made, I listen for port.onDisconnect - one the port is disconnected, I know the devtools panel must have been closed.

Toby