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/*
* Copyright 2023 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.
*/
#pragma once
#include <android-base/result.h>
#include <input/Input.h>
#include "rust/cxx.h"
namespace android {
namespace input {
namespace verifier {
struct InputVerifier;
}
} // namespace input
/*
* Crash if the provided touch stream is inconsistent.
* This class is a pass-through to the rust implementation of InputVerifier.
* The rust class could also be used directly, but it would be less convenient.
* We can't directly invoke the rust methods on a rust object. So, there's no way to do:
* mVerifier.process_movement(...).
* This C++ class makes it a bit easier to use.
*
* TODO(b/211379801): Add support for hover events:
* - No hover move without enter
* - No touching pointers when hover enter
* - No hovering pointers when touching
* - Only 1 hovering pointer max
*/
class InputVerifier {
public:
InputVerifier(const std::string& name);
android::base::Result<void> processMovement(int32_t deviceId, int32_t source, int32_t action,
int32_t actionButton, uint32_t pointerCount,
const PointerProperties* pointerProperties,
const PointerCoords* pointerCoords, int32_t flags,
int32_t buttonState);
void resetDevice(int32_t deviceId);
private:
rust::Box<android::input::verifier::InputVerifier> mVerifier;
};
} // namespace android
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