1 /*
2  * Copyright (c) 2023 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 #ifndef NAPI_AUDIO_VOLUME_KEY_EVENT_CALLBACK_H
16 #define NAPI_AUDIO_VOLUME_KEY_EVENT_CALLBACK_H
17 
18 #include <uv.h>
19 #include "napi/native_api.h"
20 #include "napi/native_node_api.h"
21 #include "napi_async_work.h"
22 #include "audio_system_manager.h"
23 
24 namespace OHOS {
25 namespace AudioStandard {
26 
27 const std::string VOLUME_KEY_EVENT_CALLBACK_NAME = "volumeChange";
28 
29 class NapiAudioVolumeKeyEvent : public VolumeKeyEventCallback {
30 public:
31     explicit NapiAudioVolumeKeyEvent(napi_env env);
32     virtual ~NapiAudioVolumeKeyEvent();
33     void OnVolumeKeyEvent(VolumeEvent volumeEvent) override;
34     void SaveCallbackReference(const std::string &callbackName, napi_value args);
35     bool ContainSameJsCallback(napi_value args);
36 
37 private:
38     struct AudioVolumeKeyEventJsCallback {
39         std::shared_ptr<AutoRef> callback = nullptr;
40         std::string callbackName = "unknown";
41         VolumeEvent volumeEvent;
42     };
43 
44     void OnJsCallbackVolumeEvent(std::unique_ptr<AudioVolumeKeyEventJsCallback> &jsCb);
45 
46     std::shared_ptr<AutoRef> audioVolumeKeyEventJsCallback_ = nullptr;
47     std::mutex mutex_;
48     napi_env env_;
49     napi_ref callback_ = nullptr;
50     static napi_ref sConstructor_;
51 };
52 } // namespace AudioStandard
53 } // namespace OHOS
54 #endif /* NAPI_AUDIO_INTERRUPT_MANAGER_H */