1 /* 2 * Copyright (c) 2023-2024 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 I_COOPERATE_STATE_H 17 #define I_COOPERATE_STATE_H 18 19 #include "cooperate_context.h" 20 21 namespace OHOS { 22 namespace Msdp { 23 namespace DeviceStatus { 24 namespace Cooperate { 25 namespace { 26 constexpr int32_t PRIORITY { 1 }; 27 } 28 class IStateMachine { 29 public: 30 IStateMachine() = default; 31 virtual ~IStateMachine() = default; 32 33 virtual void TransiteTo(Context &context, CooperateState state) = 0; 34 }; 35 36 class ICooperateState { 37 public: ICooperateState(IStateMachine & parent)38 ICooperateState(IStateMachine &parent) : parent_(parent) {} 39 virtual ~ICooperateState() = default; 40 41 virtual void OnEvent(Context &context, const CooperateEvent &event) = 0; 42 virtual void OnEnterState(Context &context) = 0; 43 virtual void OnLeaveState(Context &context) = 0; 44 45 protected: 46 class ICooperateStep { 47 public: 48 ICooperateStep(ICooperateState &parent, std::shared_ptr<ICooperateStep> prev); 49 virtual ~ICooperateStep() = default; 50 51 virtual void OnEvent(Context &context, const CooperateEvent &event); 52 virtual void OnProgress(Context &context, const CooperateEvent &event) = 0; 53 virtual void OnReset(Context &context, const CooperateEvent &event) = 0; 54 virtual void OnProgressWithOptions(Context &context, const CooperateEvent &event) = 0; 55 56 void SetNext(std::shared_ptr<ICooperateStep> next); 57 58 protected: AddHandler(CooperateEventType event,std::function<void (Context &,const CooperateEvent &)> handler)59 void AddHandler(CooperateEventType event, std::function<void(Context&, const CooperateEvent&)> handler) 60 { 61 handlers_.emplace(event, handler); 62 } 63 64 void TransiteTo(Context &context, CooperateState state); 65 void Switch(std::shared_ptr<ICooperateStep> step); 66 void Proceed(Context &context, const CooperateEvent &event); 67 void Reset(Context &context, const CooperateEvent &event); 68 69 ICooperateState &parent_; 70 std::shared_ptr<ICooperateStep> prev_ { nullptr }; 71 std::shared_ptr<ICooperateStep> next_ { nullptr }; 72 std::map<CooperateEventType, std::function<void(Context&, const CooperateEvent&)>> handlers_; 73 }; 74 75 class Process final { 76 public: 77 Process() = default; 78 ~Process() = default; 79 80 std::string Peer() const; 81 int32_t StartDeviceId() const; 82 83 bool IsPeer(const std::string &networkId) const; 84 85 void StartCooperate(Context &context, const StartCooperateEvent &event); 86 void StartCooperateWithOptions(Context &context, const StartWithOptionsEvent &event); 87 void RemoteStart(Context &context, const DSoftbusStartCooperate &event); 88 void RelayCooperate(Context &context, const DSoftbusRelayCooperate &event); 89 90 private: 91 std::string remoteNetworkId_; 92 int32_t startDeviceId_ { -1 }; 93 }; 94 95 void TransiteTo(Context &context, CooperateState state); 96 void Switch(std::shared_ptr<ICooperateStep> step); 97 98 IStateMachine &parent_; 99 std::shared_ptr<ICooperateStep> current_ { nullptr }; 100 Process process_; 101 }; 102 } // namespace Cooperate 103 } // namespace DeviceStatus 104 } // namespace Msdp 105 } // namespace OHOS 106 #endif // I_COOPERATE_STATE_H 107