Listen for added DBus interfaces instead of registered services
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Authored by fvogt on Oct 27 2018, 9:53 PM.

Description

Listen for added DBus interfaces instead of registered services

Summary:
When the service is registered, the interfaces might not be available yet.
So wait for those instead.

BUG: 400359

This was RFC because:

I'm not sure whether it's guaranteed that InterfacesAdded is emitted on service registration as well or both connections are necessary
I don't know how it's possible to test this as org.kde.fakenetwork does not support the org.freedesktop.ObjectManager API

Test Plan:
Restarting NM while kded5 keeps running caused "nmcli up" to fail because of
missing secrets.
With this patch, it works successfully.

Reviewers: Frameworks, jgrulich

Reviewed By: jgrulich

Subscribers: kde-frameworks-devel