1 /*
2  * Copyright (c) 2024 Huawei Device Co., Ltd.
3  * Licensed under the Apache License, Version 2.0 (the "License");
4  * you may not use this file except in compliance with the License.
5  * You may obtain a copy of the License at
6  *
7  *     http://www.apache.org/licenses/LICENSE-2.0
8  *
9  * Unless required by applicable law or agreed to in writing, software
10  * distributed under the License is distributed on an "AS IS" BASIS,
11  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12  * See the License for the specific language governing permissions and
13  * limitations under the License.
14  */
15 
16 #ifndef SLOW_MOTION_SESSION_NAPI_H
17 #define SLOW_MOTION_SESSION_NAPI_H
18 
19 #include "napi/native_api.h"
20 #include "napi/native_node_api.h"
21 #include "session/camera_session_napi.h"
22 #include "session/slow_motion_session.h"
23 
24 namespace OHOS {
25 namespace CameraStandard {
26 static const char SLOW_MOTION_SESSION_NAPI_CLASS_NAME[] = "SlowMotionSession";
27 
28 class SlowMotionStateListener : public SlowMotionStateCallback, public ListenerBase {
29 public:
SlowMotionStateListener(napi_env env)30     explicit SlowMotionStateListener(napi_env env) : ListenerBase(env)
31     {
32         SetSlowMotionState(SlowMotionState::DEFAULT);
33     }
34     ~SlowMotionStateListener() = default;
35     void OnSlowMotionState(const SlowMotionState state) override;
36 private:
37     void OnSlowMotionStateCb(const SlowMotionState state) const;
38     void OnSlowMotionStateCbAsync(const SlowMotionState state) const;
39 };
40 
41 struct SlowMotionStateListenerInfo {
42     SlowMotionState state_;
43     const SlowMotionStateListener* listener_;
SlowMotionStateListenerInfoSlowMotionStateListenerInfo44     SlowMotionStateListenerInfo(SlowMotionState state, const SlowMotionStateListener* listener)
45         : state_(state), listener_(listener) {}
46 };
47 
48 class SlowMotionSessionNapi : public CameraSessionNapi {
49 public:
50     static napi_value Init(napi_env env, napi_value exports);
51     static napi_value CreateCameraSession(napi_env env);
52     SlowMotionSessionNapi();
53     ~SlowMotionSessionNapi() override;
54 
55     static void SlowMotionSessionNapiDestructor(napi_env env, void* nativeObject, void* finalize_hint);
56     static napi_value SlowMotionSessionNapiConstructor(napi_env env, napi_callback_info info);
57     static napi_value IsSlowMotionDetectionSupported(napi_env env, napi_callback_info info);
58     static napi_value SetSlowMotionDetectionArea(napi_env env, napi_callback_info info);
59     napi_env env_;
60     sptr<SlowMotionSession> slowMotionSession_;
61     static thread_local napi_ref sConstructor_;
62     std::shared_ptr<SlowMotionStateListener> slowMotionStateListener_;
63 private:
64     static napi_value GetDoubleProperty(napi_env env, napi_value param, const std::string& propertyName,
65         double& propertyValue);
66     void RegisterSlowMotionStateCb(const std::string& eventName, napi_env env, napi_value callback,
67         const std::vector<napi_value>& args, bool isOnce) override;
68     void UnregisterSlowMotionStateCb(
69         const std::string& eventName, napi_env env, napi_value callback, const std::vector<napi_value>& args) override;
70 };
71 }
72 }
73 #endif /* SLOW_MOTION_SESSION_NAPI_H */
74