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/*
* Copyright (C) 2018 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#ifndef CAR_KEVENTREADER_INPUTSOURCE
#define CAR_KEVENTREADER_INPUTSOURCE
#include <linux/input.h>
#include <optional>
#include <string>
#include "event.h"
namespace com::android::car::keventreader {
class InputSource {
public:
explicit InputSource(const char* file);
explicit operator bool() const;
int descriptor() const;
std::optional<com::android::car::keventreader::KeypressEvent> read() const;
virtual ~InputSource();
private:
struct kevent : public ::input_event {
kevent();
bool isKeypress() const;
bool isKeydown() const;
bool isKeyup() const;
};
static_assert(sizeof(kevent) == sizeof(::input_event), "do not add data to input_event");
std::string mFilePath;
int mDescriptor;
};
}
#endif //CAR_KEVENTREADER_INPUTSOURCE