110 lines
4.0 KiB
C
110 lines
4.0 KiB
C
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/*
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* Copyright (C) 2019 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 "HidUsageAccumulator.h"
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#include "InputMapper.h"
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namespace android {
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class KeyboardInputMapper : public InputMapper {
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public:
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template <class T, class... Args>
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friend std::unique_ptr<T> createInputMapper(InputDeviceContext& deviceContext,
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const InputReaderConfiguration& readerConfig,
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Args... args);
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~KeyboardInputMapper() override = default;
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uint32_t getSources() const override;
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void populateDeviceInfo(InputDeviceInfo& deviceInfo) override;
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void dump(std::string& dump) override;
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[[nodiscard]] std::list<NotifyArgs> reconfigure(nsecs_t when,
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const InputReaderConfiguration& config,
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ConfigurationChanges changes) override;
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[[nodiscard]] std::list<NotifyArgs> reset(nsecs_t when) override;
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[[nodiscard]] std::list<NotifyArgs> process(const RawEvent* rawEvent) override;
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int32_t getKeyCodeState(uint32_t sourceMask, int32_t keyCode) override;
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int32_t getScanCodeState(uint32_t sourceMask, int32_t scanCode) override;
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bool markSupportedKeyCodes(uint32_t sourceMask, const std::vector<int32_t>& keyCodes,
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uint8_t* outFlags) override;
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int32_t getKeyCodeForKeyLocation(int32_t locationKeyCode) const override;
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int32_t getMetaState() override;
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bool updateMetaState(int32_t keyCode) override;
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std::optional<int32_t> getAssociatedDisplayId() override;
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void updateLedState(bool reset) override;
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private:
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// The current viewport.
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std::optional<DisplayViewport> mViewport{};
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struct KeyDown {
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nsecs_t downTime{};
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int32_t keyCode{};
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int32_t scanCode{};
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};
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uint32_t mSource{};
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int32_t mKeyboardType{};
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std::optional<KeyboardLayoutInfo> mKeyboardLayoutInfo;
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std::vector<KeyDown> mKeyDowns{}; // keys that are down
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int32_t mMetaState{};
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HidUsageAccumulator mHidUsageAccumulator;
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struct LedState {
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bool avail{}; // led is available
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bool on{}; // we think the led is currently on
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};
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LedState mCapsLockLedState{};
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LedState mNumLockLedState{};
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LedState mScrollLockLedState{};
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// Immutable configuration parameters.
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struct Parameters {
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bool orientationAware{};
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bool handlesKeyRepeat{};
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bool doNotWakeByDefault{};
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} mParameters{};
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KeyboardInputMapper(InputDeviceContext& deviceContext,
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const InputReaderConfiguration& readerConfig, uint32_t source,
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int32_t keyboardType);
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void configureParameters();
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void dumpParameters(std::string& dump) const;
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ui::Rotation getOrientation();
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int32_t getDisplayId();
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[[nodiscard]] std::list<NotifyArgs> processKey(nsecs_t when, nsecs_t readTime, bool down,
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int32_t scanCode, int32_t usageCode);
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bool updateMetaStateIfNeeded(int32_t keyCode, bool down);
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std::optional<size_t> findKeyDownIndex(int32_t scanCode);
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void resetLedState();
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void initializeLedState(LedState& ledState, int32_t led);
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void updateLedStateForModifier(LedState& ledState, int32_t led, int32_t modifier, bool reset);
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std::optional<DisplayViewport> findViewport(const InputReaderConfiguration& readerConfig);
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[[nodiscard]] std::list<NotifyArgs> cancelAllDownKeys(nsecs_t when);
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};
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} // namespace android
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