components/proximity_auth/screenlock_state.h

   1 // Copyright 2015 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #ifndef COMPONENTS_PROXIMITY_AUTH_SCREENLOCK_STATE_H
   6 #define COMPONENTS_PROXIMITY_AUTH_SCREENLOCK_STATE_H
   7
   8 namespace proximity_auth {
   9
  10 // Possible user states of the proximity auth feature on the lock or sign-in
  11 // screen.
  12 enum class ScreenlockState {
  13   // Proximity-based authentication is not enabled, or the screen is not
  14   // locked.
  15   INACTIVE,
  16   // Bluetooth is not on.
  17   NO_BLUETOOTH,
  18   // The local device is in process of turning on Bluetooth.
  19   BLUETOOTH_CONNECTING,
  20   // No phones eligible to unlock the local device can be found.
  21   NO_PHONE,
  22   // A phone eligible to unlock the local device is found, but cannot be
  23   // authenticated.
  24   PHONE_NOT_AUTHENTICATED,
  25   // A phone eligible to unlock the local device is found, but it's locked.
  26   PHONE_LOCKED,
  27   // A phone eligible to unlock the local device is found, but it does not have
  28   // a lock screen enabled.
  29   PHONE_NOT_LOCKABLE,
  30   // An enabled phone is found, but it is not allowed to unlock the local device
  31   // because it does not support reporting its lock screen state.
  32   PHONE_UNSUPPORTED,
  33   // A phone eligible to unlock the local device is found, but its received
  34   // signal strength is too low, i.e. the phone is roughly more than 30 feet
  35   // away, and therefore is not allowed to unlock the device.
  36   RSSI_TOO_LOW,
  37   // A phone eligible to unlock the local device is found, but the local
  38   // device's transmission power is too high, indicating that the phone is
  39   // (probably) more than 1 foot away, and therefore is not allowed to unlock
  40   // the device.
  41   TX_POWER_TOO_HIGH,
  42   // A phone eligible to unlock the local device is found; but (a) the phone is
  43   // locked, and (b) the local device's transmission power is too high,
  44   // indicating that the phone is (probably) more than 1 foot away, and
  45   // therefore is not allowed to unlock the device.
  46   PHONE_LOCKED_AND_TX_POWER_TOO_HIGH,
  47   // The local device can be unlocked using proximity-based authentication.
  48   AUTHENTICATED,
  49 };
  50
  51 }  // namespace proximity_auth
  52
  53 #endif  // COMPONENTS_PROXIMITY_AUTH_SCREENLOCK_STATE_H