Nicholas Little authored Jul 05, 2014 and Andrés G. Aragoneses committed Aug 01, 2014

We need to unmount MTP devices for banshee to make use of them, this
causes nautilus to produce error messages in some cases, as described in
[1].

This patch adds a parameter to DapSource.DeviceInitialize to signal
whether we should attempt to force the connection to the device (at the
user's request via the ClaimDapAction) or just make a best attempt.

To facilitate this, DapSource subclasses can now throw
InvalidDeviceStateException which will allow them to make a claim on a
device even though they couldn't initialize it. At that point, a new
type, PotentialSource is mapped, enabling the ClaimDapAction.

[1] https://bugzilla.gnome.org/show_bug.cgi?id=731916