mirror of
https://github.com/openharmony/distributedhardware_distributed_input.git
synced 2026-07-19 17:43:35 -04:00
hwzhangchuang
89 lines
3.3 KiB
C++
89 lines
3.3 KiB
C++
/*
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* Copyright (c) 2023 Huawei Device Co., Ltd.
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#ifndef DISTRIBUTED_INPUT_STATE_BASE_H
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#define DISTRIBUTED_INPUT_STATE_BASE_H
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#include <map>
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#include <mutex>
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#include <string>
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#include <linux/input.h>
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#include "constants_dinput.h"
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#include "single_instance.h"
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namespace OHOS {
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namespace DistributedHardware {
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namespace DistributedInput {
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/*
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* This enumeration class represents the two states of the peropheral:
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* THROUGH_IN : The state indicates the peripheral takes effect on the local device.
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* THROUGH_OUT : The state indicates that the peripheral takes effect at the remote device.
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*/
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enum class DhIdState {
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THROUGH_IN = 0,
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THROUGH_OUT,
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};
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class DInputState {
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DECLARE_SINGLE_INSTANCE_BASE(DInputState);
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public:
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int32_t Init();
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int32_t Release();
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int32_t RecordDhIds(const std::vector<std::string> &dhIds, DhIdState state, const int32_t sessionId);
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int32_t RemoveDhIds(const std::vector<std::string> &dhIds);
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DhIdState GetStateByDhid(const std::string &dhId);
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void AddKeyDownState(struct RawEvent event);
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void RemoveKeyDownState(struct RawEvent event);
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/**
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* If user pressed some keys before we prepare distributed input sucess, because the monitor thread not start,
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* we CAN NOT monitor those keys.
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* So, we check all keys state before start input device monitor thread.
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* But the keys state not contain the pressed order, so we use the key REPEAT event to move the corresponding
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* cached key last.
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*/
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void CheckAndSetLongPressedKeyOrder(struct RawEvent event);
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/**
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* Clear Device stats if unprepare.
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*/
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void ClearDeviceStates();
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void RefreshABSPosition(const std::string &dhId, int32_t absX, int32_t absY);
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std::pair<int32_t, int32_t> GetAndClearABSPosition(const std::string &dhId);
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private:
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DInputState() = default;
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~DInputState();
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// Simulate device state to the pass through target device.
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void SimulateEventInjectToSrc(const int32_t sessionId, const std::vector<std::string> &dhIds);
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void SimulateBtnTouchEvent(const int32_t sessionId, const std::string &dhId, const struct RawEvent &event);
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void SimulateNormalEvent(const int32_t sessionId, const std::string &dhId, const struct RawEvent &event);
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private:
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std::mutex operationMutex_;
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std::map<std::string, DhIdState> dhIdStateMap_;
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std::mutex keyDownStateMapMtx_;
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// Record key down state of each device dhid
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std::unordered_map<std::string, std::vector<struct RawEvent>> keyDownStateMap_;
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std::mutex absPosMtx_;
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// Record abs x/y of touchpad
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std::unordered_map<std::string, std::pair<int32_t, int32_t>> absPositionsMap_;
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};
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} // namespace DistributedInput
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} // namespace DistributedHardware
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} // namespace OHOS
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#endif // DISTRIBUTED_INPUT_STATE_BASE_H
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