1 /* 2 * Copyright (c) 2022 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 OHOS_NAPI_AVCONTROLLER_CALLBACK_H 17 #define OHOS_NAPI_AVCONTROLLER_CALLBACK_H 18 19 #include <list> 20 #include "avsession_info.h" 21 #include "avsession_log.h" 22 #include "napi/native_api.h" 23 #include "napi/native_node_api.h" 24 #include "napi_async_callback.h" 25 26 namespace OHOS::AVSession { 27 class NapiAVControllerCallback : public AVControllerCallback { 28 public: 29 enum { 30 EVENT_SESSION_DESTROY, 31 EVENT_PLAYBACK_STATE_CHANGE, 32 EVENT_META_DATA_CHANGE, 33 EVENT_ACTIVE_STATE_CHANGE, 34 EVENT_VALID_COMMAND_CHANGE, 35 EVENT_OUTPUT_DEVICE_CHANGE, 36 EVENT_TYPE_MAX 37 }; 38 39 NapiAVControllerCallback(); 40 ~NapiAVControllerCallback() override; 41 42 void OnSessionDestroy() override; 43 void OnPlaybackStateChange(const AVPlaybackState& state) override; 44 void OnMetaDataChange(const AVMetaData& data) override; 45 void OnActiveStateChange(bool isActive) override; 46 void OnValidCommandChange(const std::vector<int32_t>& cmds) override; 47 void OnOutputDeviceChange(const OutputDeviceInfo& info) override; 48 49 napi_status AddCallback(napi_env env, int32_t event, napi_value callback); 50 napi_status RemoveCallback(napi_env env, int32_t event, napi_value callback); 51 52 private: 53 void HandleEvent(int32_t event); 54 55 template<typename T> 56 void HandleEvent(int32_t event, const T& param); 57 58 std::mutex lock_; 59 std::shared_ptr<NapiAsyncCallback> asyncCallback_; 60 std::list<napi_ref> callbacks_[EVENT_TYPE_MAX] {}; 61 }; 62 } // namespace OHOS::AVSession 63 #endif // OHOS_NAPI_AVCONTROLLER_CALLBACK_H