The places sidebar emits this signal when it starts a new operation
because the user for example ejected some drive or unmounted a mount.
In this way the application using the gtk.PlacesSidebar can track the
progress of the operation and, for example, show a notification.
The places sidebar emits this signal when it starts a new operation because the user for example ejected some drive or unmounted a mount. In this way the application using the gtk.PlacesSidebar can track the progress of the operation and, for example, show a notification.