1 /* 2 * Copyright (c) 2021-2023 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 16 #ifndef DISTRIBUTED_INPUT_NODE_MANAGER_H 17 #define DISTRIBUTED_INPUT_NODE_MANAGER_H 18 19 #include <atomic> 20 #include <condition_variable> 21 #include <map> 22 #include <mutex> 23 #include <queue> 24 #include <string> 25 #include <thread> 26 27 #include "event_handler.h" 28 #include "nlohmann/json.hpp" 29 30 #include "constants_dinput.h" 31 #include "input_hub.h" 32 #include "virtual_device.h" 33 34 namespace OHOS { 35 namespace DistributedHardware { 36 namespace DistributedInput { 37 const uint32_t DINPUT_NODE_MANAGER_SCAN_ALL_NODE = 1; 38 const std::string INPUT_NODE_DHID = "dhId"; 39 class DistributedInputNodeManager { 40 public: 41 DistributedInputNodeManager(); 42 ~DistributedInputNodeManager(); 43 44 int32_t OpenDevicesNode(const std::string &devId, const std::string &dhId, const std::string ¶meters); 45 46 int32_t GetDevice(const std::string &dhId, VirtualDevice *&device); 47 void ReportEvent(const RawEvent rawEvent); 48 int32_t CloseDeviceLocked(const std::string &dhId); 49 void StartInjectThread(); 50 void StopInjectThread(); 51 int32_t CreateVirtualTouchScreenNode(const std::string &devId, const std::string &dhId, const uint64_t srcWinId, 52 const uint32_t sourcePhyWidth, const uint32_t sourcePhyHeight); 53 int32_t RemoveVirtualTouchScreenNode(const std::string &dhId); 54 int32_t GetVirtualTouchScreenFd(); 55 56 int32_t GetDeviceInfo(std::string &deviceId); 57 void GetDevicesInfoByType(const std::string &networkId, uint32_t inputTypes, std::map<int32_t, std::string> &datas); 58 void GetDevicesInfoByDhId(std::vector<std::string> dhidsVec, std::map<int32_t, std::string> &datas); 59 void ProcessInjectEvent(const std::shared_ptr<RawEvent> &rawEvent); 60 61 void GetVirtualKeyboardPathsByDhIds(const std::vector<std::string> &dhIds, 62 std::vector<std::string> &shareDhidsPaths, std::vector<std::string> &shareDhIds); 63 void NotifyNodeMgrScanVirNode(const std::string &dhId); 64 65 class DInputNodeManagerEventHandler : public AppExecFwk::EventHandler { 66 public: 67 DInputNodeManagerEventHandler(const std::shared_ptr<AppExecFwk::EventRunner> &runner, 68 DistributedInputNodeManager *manager); 69 ~DInputNodeManagerEventHandler() override; 70 71 void ProcessEvent(const AppExecFwk::InnerEvent::Pointer &event) override; 72 private: 73 void ScanAllNode(const AppExecFwk::InnerEvent::Pointer &event); 74 75 using nodeMgrFunc = void (DInputNodeManagerEventHandler::*)( 76 const AppExecFwk::InnerEvent::Pointer &event); 77 std::map<int32_t, nodeMgrFunc> eventFuncMap_; 78 DistributedInputNodeManager *nodeManagerObj_; 79 }; 80 81 private: 82 void AddDeviceLocked(const std::string &dhId, std::unique_ptr<VirtualDevice> device); 83 int32_t CreateHandle(const InputDevice &inputDevice, const std::string &devId, const std::string &dhId); 84 void ParseInputDeviceJson(const std::string &str, InputDevice &pBuf); 85 void VerifyInputDevice(const nlohmann::json &inputDeviceJson, InputDevice &pBuf); 86 void InjectEvent(); 87 88 void ScanSinkInputDevices(const std::string &dhId); 89 void OpenInputDevice(const std::string &devicePath, const std::string &dhId); 90 bool IsVirtualDev(int fd); 91 bool GetDevDhIdByFd(int fd, std::string &dhId, std::string &physicalPath); 92 void SetPathForDevMap(std::string &dhId, const std::string &devicePath); 93 94 /* the key is dhId, and the value is virtualDevice */ 95 std::map<std::string, std::unique_ptr<VirtualDevice>> virtualDeviceMap_; 96 std::mutex virtualDeviceMapMutex_; 97 std::atomic<bool> isInjectThreadCreated_; 98 std::atomic<bool> isInjectThreadRunning_; 99 std::mutex operationMutex_; 100 std::thread eventInjectThread_; 101 std::mutex injectThreadMutex_; 102 std::condition_variable conditionVariable_; 103 std::queue<std::shared_ptr<RawEvent>> injectQueue_; 104 std::unique_ptr<InputHub> inputHub_; 105 int32_t virtualTouchScreenFd_; 106 std::once_flag callOnceFlag_; 107 std::shared_ptr<DInputNodeManagerEventHandler> callBackHandler_; 108 }; 109 } // namespace DistributedInput 110 } // namespace DistributedHardware 111 } // namespace OHOS 112 113 #endif // DISTRIBUTED_INPUT_INJECT_H