onFocusedPrimaryTab()

Registers a function to call when the focus of the browser changes to a different primary tab. This method is only available in API version 25.0 or later.

NameTypeDescription
eventHandlerfunctionJavaScript method called when the focus of the browser changes to a different primary tab.

This method is asynchronous so it returns its response in an object in a callback method. The response object contains the following fields:

NameTypeDescription
idstringThe ID of the primary tab on which the browser is focused.
objectIdstringThe object ID of the primary tab on which the browser is focused or null if no object exists.