Use event parameter
This is part of the refactoring happening in bug 30975
Test plan:
1. Verify that the plugin continues to work as before
Signed-off-by: David Nind <david@davidnind.com>
Signed-off-by: Katrin Fischer <katrin.fischer.83@web.de>
Signed-off-by: Tomas Cohen Arazi <tomascohen@theke.io>
