common: Add generic API to map GdkDevices to GsdDevices

Now that we have tablet support in wayland, we can kind of honor
that in the places we're interested. The inverse (looking up the
GdkDevices that a single GsdDevice represents) is unneeded.

1 files changed, 16 insertions, 0 deletions

diff --git a/panels/common/gsd-device-manager.c b/panels/common/gsd-device-manager.c
index 1737bf333..541f29487 100644
--- a/panels/common/gsd-device-manager.c
+++ b/panels/common/gsd-device-manager.c
@@ -415,3 +415,19 @@ gsd_device_get_dimensions (GsdDevice *device,
 
 	return priv->width > 0 && priv->height > 0;
 }
+
+GsdDevice *
+gsd_device_manager_lookup_gdk_device (GsdDeviceManager *manager,
+				      GdkDevice	       *gdk_device)
+{
+	GsdDeviceManagerClass *klass;
+
+	g_return_val_if_fail (GSD_IS_DEVICE_MANAGER (manager), NULL);
+	g_return_val_if_fail (GDK_IS_DEVICE (gdk_device), NULL);
+
+	klass = GSD_DEVICE_MANAGER_GET_CLASS (manager);
+	if (!klass->lookup_device)
+		return NULL;
+
+	return klass->lookup_device (manager, gdk_device);
+}