50 lines
1.6 KiB
C++
50 lines
1.6 KiB
C++
/*
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* Copyright (C) 2023 The Android Open Source Project
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*
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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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#pragma once
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#include <input/Input.h>
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#include <map>
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namespace android {
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/*
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* Crash if the provided touch stream is inconsistent.
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*
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* TODO(b/211379801): Add support for hover events:
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* - No hover move without enter
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* - No touching pointers when hover enter
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* - No hovering pointers when touching
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* - Only 1 hovering pointer max
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*/
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class InputVerifier {
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public:
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InputVerifier(const std::string& name);
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void processMovement(int32_t deviceId, int32_t action, uint32_t pointerCount,
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const PointerProperties* pointerProperties,
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const PointerCoords* pointerCoords, int32_t flags);
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private:
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const std::string mName;
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std::map<int32_t /*deviceId*/, std::bitset<MAX_POINTER_ID + 1>> mTouchingPointerIdsByDevice;
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void ensureTouchingPointersMatch(int32_t deviceId, uint32_t pointerCount,
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const PointerProperties* pointerProperties,
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const char* action) const;
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};
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} // namespace android
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