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109 lines
3.7 KiB
109 lines
3.7 KiB
/*
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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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#ifndef _UI_INPUTREADER_KEYBOARD_INPUT_MAPPER_H
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#define _UI_INPUTREADER_KEYBOARD_INPUT_MAPPER_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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KeyboardInputMapper(InputDeviceContext& deviceContext, uint32_t source, int32_t keyboardType);
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virtual ~KeyboardInputMapper();
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virtual uint32_t getSources() override;
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virtual void populateDeviceInfo(InputDeviceInfo* deviceInfo) override;
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virtual void dump(std::string& dump) override;
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virtual void configure(nsecs_t when, const InputReaderConfiguration* config,
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uint32_t changes) override;
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virtual void reset(nsecs_t when) override;
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virtual void process(const RawEvent* rawEvent) override;
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virtual int32_t getKeyCodeState(uint32_t sourceMask, int32_t keyCode) override;
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virtual int32_t getScanCodeState(uint32_t sourceMask, int32_t scanCode) override;
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virtual bool markSupportedKeyCodes(uint32_t sourceMask, size_t numCodes,
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const int32_t* keyCodes, uint8_t* outFlags) override;
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virtual int32_t getMetaState() override;
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virtual void updateMetaState(int32_t keyCode) override;
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virtual std::optional<int32_t> getAssociatedDisplayId() override;
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virtual void updateLedState(bool reset);
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private:
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// The current viewport.
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std::optional<DisplayViewport> mViewport;
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// HUANGLONG begin
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// switch to next viewport.
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std::optional<DisplayViewport> mSwitchViewport;
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// HUANGLONG end
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struct KeyDown {
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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::vector<KeyDown> mKeyDowns; // keys that are down
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int32_t mMetaState;
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nsecs_t mDownTime; // time of most recent key down
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int32_t mCurrentHidUsage; // most recent HID usage seen this packet, or 0 if none
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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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void configureParameters();
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void dumpParameters(std::string& dump);
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int32_t getOrientation();
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int32_t getDisplayId();
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bool isKeyboardOrGamepadKey(int32_t scanCode);
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bool isMediaKey(int32_t keyCode);
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void processKey(nsecs_t when, nsecs_t readTime, bool down, int32_t scanCode, int32_t usageCode);
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bool updateMetaStateIfNeeded(int32_t keyCode, bool down);
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ssize_t findKeyDown(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(nsecs_t when,
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const InputReaderConfiguration* config);
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};
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} // namespace android
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#endif // _UI_INPUTREADER_KEYBOARD_INPUT_MAPPER_H
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