private void DeviceAppeared (object o, DeviceArguments args)
{
Device device = new Device (args);
Hyena.Log.DebugFormat ("device appeared: {0}, path: {1}", device.Uuid,
args.DeviceProperties.GetStringValue ("DAVolumePath"));
lock (this) {
// only handle devices which have a VolumePath (=MountPoint)
if (!args.DeviceProperties.HasKey ("DAVolumePath")) {
return;
}
var protocol = args.DeviceProperties.GetStringValue ("DADeviceProtocol");
IDevice new_device = null;
if (!string.IsNullOrEmpty (protocol) && protocol == "USB") {
new_device = new UsbVolume (args);
} else {
new_device = new Volume (args, null);
}
// avoid adding a device twice - might happen since DeviceAppeared and DeviceChanged both fire
var old_device = devices.Where (v => { return v.Uuid == new_device.Uuid; }).FirstOrDefault ();
if (old_device != null) {
return;
}
if (new_device != null) {
devices.Add (new_device);
// Notify that a device was added (i.e. to refresh device list)
DeviceAdded (this, new DeviceAddedArgs ((IDevice) new_device));
}
}
}
private void OnDeviceChanged(object o, DeviceArguments args)
{
Device device = new Device (args);
Hyena.Log.DebugFormat ("device changed: {0}, path: {1}", device.Uuid,
args.DeviceProperties.GetStringValue ("DAVolumePath"));
lock (this) {
var old_device = devices.Where (d => d.Uuid == device.Uuid).FirstOrDefault ();
if (old_device != null) {
// a device that was currently attached has changed
// remove the device and immediately re-add it
devices.Remove (old_device);
var remove_handler = DeviceRemoved;
if (remove_handler != null) {
remove_handler (old_device, new DeviceRemovedArgs (old_device.Uuid));
}
}
// do not add device without a VolumePath (=MountPoint)
if (!args.DeviceProperties.HasKey ("DAVolumePath")) {
return;
}
IDevice new_device = null;
var protocol = args.DeviceProperties.GetStringValue ("DADeviceProtocol");
if (!string.IsNullOrEmpty (protocol) && protocol == "USB") {
new_device = new UsbVolume (args);
} else {
new_device = new Volume (args);
}
devices.Add (new_device);
var added_handler = DeviceAdded;
if (added_handler != null) {
added_handler (this, new DeviceAddedArgs ((IDevice)new_device));
}
}
}