1c29fa5a6Sopenharmony_ci/*
2c29fa5a6Sopenharmony_ci * Copyright (c) 2021-2022 Huawei Device Co., Ltd.
3c29fa5a6Sopenharmony_ci * Licensed under the Apache License, Version 2.0 (the "License");
4c29fa5a6Sopenharmony_ci * you may not use this file except in compliance with the License.
5c29fa5a6Sopenharmony_ci * You may obtain a copy of the License at
6c29fa5a6Sopenharmony_ci *
7c29fa5a6Sopenharmony_ci * http://www.apache.org/licenses/LICENSE-2.0
8c29fa5a6Sopenharmony_ci *
9c29fa5a6Sopenharmony_ci * Unless required by applicable law or agreed to in writing, software
10c29fa5a6Sopenharmony_ci * distributed under the License is distributed on an "AS IS" BASIS,
11c29fa5a6Sopenharmony_ci * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12c29fa5a6Sopenharmony_ci * See the License for the specific language governing permissions and
13c29fa5a6Sopenharmony_ci * limitations under the License.
14c29fa5a6Sopenharmony_ci */
15c29fa5a6Sopenharmony_ci
16c29fa5a6Sopenharmony_ci#ifndef DEVICE_OBSERVER_H
17c29fa5a6Sopenharmony_ci#define DEVICE_OBSERVER_H
18c29fa5a6Sopenharmony_ci
19c29fa5a6Sopenharmony_cinamespace OHOS {
20c29fa5a6Sopenharmony_cinamespace MMI {
21c29fa5a6Sopenharmony_ciclass IDeviceObserver {
22c29fa5a6Sopenharmony_cipublic:
23c29fa5a6Sopenharmony_ci    virtual void UpdatePointerDevice(bool hasPointerDevice, bool isVisible, bool isHotPlug) = 0;
24c29fa5a6Sopenharmony_ci};
25c29fa5a6Sopenharmony_ci
26c29fa5a6Sopenharmony_ciclass IDeviceObject {
27c29fa5a6Sopenharmony_cipublic:
28c29fa5a6Sopenharmony_ci    virtual void Attach(std::shared_ptr<IDeviceObserver> observer) = 0;
29c29fa5a6Sopenharmony_ci    virtual void Detach(std::shared_ptr<IDeviceObserver> observer) = 0;
30c29fa5a6Sopenharmony_ci    virtual void NotifyPointerDevice(bool hasPointerDevice, bool isVisible, bool isHotPlug) = 0;
31c29fa5a6Sopenharmony_ci};
32c29fa5a6Sopenharmony_ci} // namespace MMI
33c29fa5a6Sopenharmony_ci} // namespace OHOS
34c29fa5a6Sopenharmony_ci#endif // DEVICE_OBSERVER_H
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