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_SESSIONLISTENER_H 17 #define OHOS_NAPI_SESSIONLISTENER_H 18 19 #include <list> 20 #include <memory> 21 #include "avsession_info.h" 22 #include "avsession_manager.h" 23 #include "napi/native_api.h" 24 #include "napi/native_node_api.h" 25 #include "napi_utils.h" 26 #include "napi_async_callback.h" 27 28 namespace OHOS::AVSession { 29 class NapiSessionListener : public SessionListener { 30 public: 31 enum { 32 EVENT_SESSION_CREATED, 33 EVENT_SESSION_DESTROYED, 34 EVENT_TOP_SESSION_CHANGED, 35 EVENT_TYPE_MAX 36 }; 37 38 NapiSessionListener(); 39 ~NapiSessionListener() override; 40 41 void OnSessionCreate(const AVSessionDescriptor& descriptor) override; 42 void OnSessionRelease(const AVSessionDescriptor& descriptor) override; 43 void OnTopSessionChange(const AVSessionDescriptor& descriptor) override; 44 45 napi_status AddCallback(napi_env env, int32_t event, napi_value callback); 46 napi_status RemoveCallback(napi_env env, int32_t event, napi_value callback); 47 48 private: 49 template<typename T> 50 void HandleEvent(int32_t event, const T& param); 51 52 std::shared_ptr<NapiAsyncCallback> asyncCallback_; 53 std::mutex lock_; 54 std::list<napi_ref> callbacks_[EVENT_TYPE_MAX] {}; 55 }; 56 } // namespace OHOS::AVSession 57 #endif // OHOS_NAPI_SESSIONLISTENER_H