blob: 48c9da2f0a5744ebea0083af9bb60807e16b82cd [file] [log] [blame]
// Copyright 2017 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "ash/ash_export.h"
#include "ash/lock_screen_action/lock_screen_action_background_state.h"
namespace ash {
// Used to observe the state of a lock screen action background.
class ASH_EXPORT LockScreenActionBackgroundObserver {
virtual ~LockScreenActionBackgroundObserver() {}
// Called when the state of the lock screen action background changes. For
// example when the background starts showing (with animation), or a
// background visibility animation ends.
virtual void OnLockScreenActionBackgroundStateChanged(
LockScreenActionBackgroundState state) = 0;
} // namespace ash