fp-device: add FP_DEVICE_RETRY_TOO_FAST error code

libfprint/fp-device.h

@@ -113,6 +113,8 @@ typedef enum {
  * @FP_DEVICE_RETRY_REMOVE_FINGER: The scan did not succeed due to quality or
  *   pressure problems; the user should remove their finger from the scanner
  *   before retrying.
+ * @FP_DEVICE_RETRY_TOO_FAST: The scan did not succeed because the finger
+ *   swipe was too fast.
  *
  * Error codes representing scan failures resulting in the user needing to
  * retry.
@@ -122,6 +124,7 @@ typedef enum {
   FP_DEVICE_RETRY_TOO_SHORT,
   FP_DEVICE_RETRY_CENTER_FINGER,
   FP_DEVICE_RETRY_REMOVE_FINGER,
+  FP_DEVICE_RETRY_TOO_FAST,
 } FpDeviceRetry;
 
 /**

libfprint/fpi-device.c

@@ -117,6 +117,10 @@ fpi_device_retry_new (FpDeviceRetry error)
       msg = "Please try again after removing the finger first.";
       break;
 
+    case FP_DEVICE_RETRY_TOO_FAST:
+      msg = "The swipe was too fast, please try again.";
+      break;
+
     default:
       g_warning ("Unsupported error, returning general error instead!");
       error = FP_DEVICE_RETRY_GENERAL;