Add API to get KeyCode produced by physical key location.

The physical key location is provided as a location KeyCode pointing to a location on a US keyboard layout.

Bug: 179812917
Test: atest KeyboardLayoutChangeTest
Test: atest android.hardware.input.cts.tests -m
Test: atest inputflinger_tests -m
Change-Id: Ib5ed41890cbbe393ee9ada1a04cbaaf82c9bb1fc
diff --git a/services/inputflinger/reader/mapper/CursorInputMapper.cpp b/services/inputflinger/reader/mapper/CursorInputMapper.cpp
index fcb56ef..dc5fcec 100644
--- a/services/inputflinger/reader/mapper/CursorInputMapper.cpp
+++ b/services/inputflinger/reader/mapper/CursorInputMapper.cpp
@@ -66,7 +66,7 @@
 
 CursorInputMapper::~CursorInputMapper() {}
 
-uint32_t CursorInputMapper::getSources() {
+uint32_t CursorInputMapper::getSources() const {
     return mSource;
 }
 
diff --git a/services/inputflinger/reader/mapper/CursorInputMapper.h b/services/inputflinger/reader/mapper/CursorInputMapper.h
index 9a8ca01..c84c6c4 100644
--- a/services/inputflinger/reader/mapper/CursorInputMapper.h
+++ b/services/inputflinger/reader/mapper/CursorInputMapper.h
@@ -56,7 +56,7 @@
     explicit CursorInputMapper(InputDeviceContext& deviceContext);
     virtual ~CursorInputMapper();
 
-    virtual uint32_t getSources() override;
+    virtual uint32_t getSources() const override;
     virtual void populateDeviceInfo(InputDeviceInfo* deviceInfo) override;
     virtual void dump(std::string& dump) override;
     virtual void configure(nsecs_t when, const InputReaderConfiguration* config,
diff --git a/services/inputflinger/reader/mapper/ExternalStylusInputMapper.cpp b/services/inputflinger/reader/mapper/ExternalStylusInputMapper.cpp
index 37d1d74..6b5d37f 100644
--- a/services/inputflinger/reader/mapper/ExternalStylusInputMapper.cpp
+++ b/services/inputflinger/reader/mapper/ExternalStylusInputMapper.cpp
@@ -26,7 +26,7 @@
 ExternalStylusInputMapper::ExternalStylusInputMapper(InputDeviceContext& deviceContext)
       : InputMapper(deviceContext) {}
 
-uint32_t ExternalStylusInputMapper::getSources() {
+uint32_t ExternalStylusInputMapper::getSources() const {
     return AINPUT_SOURCE_STYLUS;
 }
 
diff --git a/services/inputflinger/reader/mapper/ExternalStylusInputMapper.h b/services/inputflinger/reader/mapper/ExternalStylusInputMapper.h
index 1d42b30..516aa51 100644
--- a/services/inputflinger/reader/mapper/ExternalStylusInputMapper.h
+++ b/services/inputflinger/reader/mapper/ExternalStylusInputMapper.h
@@ -30,7 +30,7 @@
     explicit ExternalStylusInputMapper(InputDeviceContext& deviceContext);
     virtual ~ExternalStylusInputMapper() = default;
 
-    virtual uint32_t getSources() override;
+    virtual uint32_t getSources() const override;
     virtual void populateDeviceInfo(InputDeviceInfo* deviceInfo) override;
     virtual void dump(std::string& dump) override;
     virtual void configure(nsecs_t when, const InputReaderConfiguration* config,
diff --git a/services/inputflinger/reader/mapper/InputMapper.cpp b/services/inputflinger/reader/mapper/InputMapper.cpp
index b9aef54..7b185e0 100644
--- a/services/inputflinger/reader/mapper/InputMapper.cpp
+++ b/services/inputflinger/reader/mapper/InputMapper.cpp
@@ -51,6 +51,10 @@
     return AKEY_STATE_UNKNOWN;
 }
 
+int32_t InputMapper::getKeyCodeForKeyLocation(int32_t locationKeyCode) const {
+    return AKEYCODE_UNKNOWN;
+}
+
 bool InputMapper::markSupportedKeyCodes(uint32_t sourceMask, size_t numCodes,
                                         const int32_t* keyCodes, uint8_t* outFlags) {
     return false;
diff --git a/services/inputflinger/reader/mapper/InputMapper.h b/services/inputflinger/reader/mapper/InputMapper.h
index d83d74d..fce6409 100644
--- a/services/inputflinger/reader/mapper/InputMapper.h
+++ b/services/inputflinger/reader/mapper/InputMapper.h
@@ -45,12 +45,13 @@
 
     inline int32_t getDeviceId() { return mDeviceContext.getId(); }
     inline InputDeviceContext& getDeviceContext() { return mDeviceContext; }
+    inline InputDeviceContext& getDeviceContext() const { return mDeviceContext; };
     inline const std::string getDeviceName() const { return mDeviceContext.getName(); }
     inline InputReaderContext* getContext() { return mDeviceContext.getContext(); }
     inline InputReaderPolicyInterface* getPolicy() { return getContext()->getPolicy(); }
     inline InputListenerInterface& getListener() { return getContext()->getListener(); }
 
-    virtual uint32_t getSources() = 0;
+    virtual uint32_t getSources() const = 0;
     virtual void populateDeviceInfo(InputDeviceInfo* deviceInfo);
     virtual void dump(std::string& dump);
     virtual void configure(nsecs_t when, const InputReaderConfiguration* config, uint32_t changes);
@@ -61,6 +62,8 @@
     virtual int32_t getKeyCodeState(uint32_t sourceMask, int32_t keyCode);
     virtual int32_t getScanCodeState(uint32_t sourceMask, int32_t scanCode);
     virtual int32_t getSwitchState(uint32_t sourceMask, int32_t switchCode);
+    virtual int32_t getKeyCodeForKeyLocation(int32_t locationKeyCode) const;
+
     virtual bool markSupportedKeyCodes(uint32_t sourceMask, size_t numCodes,
                                        const int32_t* keyCodes, uint8_t* outFlags);
     virtual void vibrate(const VibrationSequence& sequence, ssize_t repeat, int32_t token);
diff --git a/services/inputflinger/reader/mapper/JoystickInputMapper.cpp b/services/inputflinger/reader/mapper/JoystickInputMapper.cpp
index ad11b05..a8e9bae 100644
--- a/services/inputflinger/reader/mapper/JoystickInputMapper.cpp
+++ b/services/inputflinger/reader/mapper/JoystickInputMapper.cpp
@@ -25,7 +25,7 @@
 
 JoystickInputMapper::~JoystickInputMapper() {}
 
-uint32_t JoystickInputMapper::getSources() {
+uint32_t JoystickInputMapper::getSources() const {
     return AINPUT_SOURCE_JOYSTICK;
 }
 
diff --git a/services/inputflinger/reader/mapper/JoystickInputMapper.h b/services/inputflinger/reader/mapper/JoystickInputMapper.h
index bba95ad..307bf5b 100644
--- a/services/inputflinger/reader/mapper/JoystickInputMapper.h
+++ b/services/inputflinger/reader/mapper/JoystickInputMapper.h
@@ -26,7 +26,7 @@
     explicit JoystickInputMapper(InputDeviceContext& deviceContext);
     virtual ~JoystickInputMapper();
 
-    virtual uint32_t getSources() override;
+    virtual uint32_t getSources() const override;
     virtual void populateDeviceInfo(InputDeviceInfo* deviceInfo) override;
     virtual void dump(std::string& dump) override;
     virtual void configure(nsecs_t when, const InputReaderConfiguration* config,
diff --git a/services/inputflinger/reader/mapper/KeyboardInputMapper.cpp b/services/inputflinger/reader/mapper/KeyboardInputMapper.cpp
index a8602a4..1d63c0e 100644
--- a/services/inputflinger/reader/mapper/KeyboardInputMapper.cpp
+++ b/services/inputflinger/reader/mapper/KeyboardInputMapper.cpp
@@ -95,7 +95,7 @@
 
 KeyboardInputMapper::~KeyboardInputMapper() {}
 
-uint32_t KeyboardInputMapper::getSources() {
+uint32_t KeyboardInputMapper::getSources() const {
     return mSource;
 }
 
@@ -375,6 +375,10 @@
     return getDeviceContext().getScanCodeState(scanCode);
 }
 
+int32_t KeyboardInputMapper::getKeyCodeForKeyLocation(int32_t locationKeyCode) const {
+    return getDeviceContext().getKeyCodeForKeyLocation(locationKeyCode);
+}
+
 bool KeyboardInputMapper::markSupportedKeyCodes(uint32_t sourceMask, size_t numCodes,
                                                 const int32_t* keyCodes, uint8_t* outFlags) {
     return getDeviceContext().markSupportedKeyCodes(numCodes, keyCodes, outFlags);
diff --git a/services/inputflinger/reader/mapper/KeyboardInputMapper.h b/services/inputflinger/reader/mapper/KeyboardInputMapper.h
index fc92320..3787696 100644
--- a/services/inputflinger/reader/mapper/KeyboardInputMapper.h
+++ b/services/inputflinger/reader/mapper/KeyboardInputMapper.h
@@ -26,7 +26,7 @@
     KeyboardInputMapper(InputDeviceContext& deviceContext, uint32_t source, int32_t keyboardType);
     virtual ~KeyboardInputMapper();
 
-    virtual uint32_t getSources() override;
+    virtual uint32_t getSources() const override;
     virtual void populateDeviceInfo(InputDeviceInfo* deviceInfo) override;
     virtual void dump(std::string& dump) override;
     virtual void configure(nsecs_t when, const InputReaderConfiguration* config,
@@ -38,6 +38,7 @@
     virtual int32_t getScanCodeState(uint32_t sourceMask, int32_t scanCode) override;
     virtual bool markSupportedKeyCodes(uint32_t sourceMask, size_t numCodes,
                                        const int32_t* keyCodes, uint8_t* outFlags) override;
+    virtual int32_t getKeyCodeForKeyLocation(int32_t locationKeyCode) const override;
 
     virtual int32_t getMetaState() override;
     virtual bool updateMetaState(int32_t keyCode) override;
diff --git a/services/inputflinger/reader/mapper/RotaryEncoderInputMapper.cpp b/services/inputflinger/reader/mapper/RotaryEncoderInputMapper.cpp
index b83a8fc..eca25f6 100644
--- a/services/inputflinger/reader/mapper/RotaryEncoderInputMapper.cpp
+++ b/services/inputflinger/reader/mapper/RotaryEncoderInputMapper.cpp
@@ -31,7 +31,7 @@
 
 RotaryEncoderInputMapper::~RotaryEncoderInputMapper() {}
 
-uint32_t RotaryEncoderInputMapper::getSources() {
+uint32_t RotaryEncoderInputMapper::getSources() const {
     return mSource;
 }
 
diff --git a/services/inputflinger/reader/mapper/RotaryEncoderInputMapper.h b/services/inputflinger/reader/mapper/RotaryEncoderInputMapper.h
index e0c9404..1859355 100644
--- a/services/inputflinger/reader/mapper/RotaryEncoderInputMapper.h
+++ b/services/inputflinger/reader/mapper/RotaryEncoderInputMapper.h
@@ -27,7 +27,7 @@
     explicit RotaryEncoderInputMapper(InputDeviceContext& deviceContext);
     virtual ~RotaryEncoderInputMapper();
 
-    virtual uint32_t getSources() override;
+    virtual uint32_t getSources() const override;
     virtual void populateDeviceInfo(InputDeviceInfo* deviceInfo) override;
     virtual void dump(std::string& dump) override;
     virtual void configure(nsecs_t when, const InputReaderConfiguration* config,
diff --git a/services/inputflinger/reader/mapper/SensorInputMapper.cpp b/services/inputflinger/reader/mapper/SensorInputMapper.cpp
index 677a372..b01c2bc 100644
--- a/services/inputflinger/reader/mapper/SensorInputMapper.cpp
+++ b/services/inputflinger/reader/mapper/SensorInputMapper.cpp
@@ -57,7 +57,7 @@
 
 SensorInputMapper::~SensorInputMapper() {}
 
-uint32_t SensorInputMapper::getSources() {
+uint32_t SensorInputMapper::getSources() const {
     return AINPUT_SOURCE_SENSOR;
 }
 
diff --git a/services/inputflinger/reader/mapper/SensorInputMapper.h b/services/inputflinger/reader/mapper/SensorInputMapper.h
index 1797fe3..27a6177 100644
--- a/services/inputflinger/reader/mapper/SensorInputMapper.h
+++ b/services/inputflinger/reader/mapper/SensorInputMapper.h
@@ -28,7 +28,7 @@
     explicit SensorInputMapper(InputDeviceContext& deviceContext);
     ~SensorInputMapper() override;
 
-    uint32_t getSources() override;
+    uint32_t getSources() const override;
     void populateDeviceInfo(InputDeviceInfo* deviceInfo) override;
     void dump(std::string& dump) override;
     void configure(nsecs_t when, const InputReaderConfiguration* config, uint32_t changes) override;
diff --git a/services/inputflinger/reader/mapper/SwitchInputMapper.cpp b/services/inputflinger/reader/mapper/SwitchInputMapper.cpp
index 3237824..ebb5de6 100644
--- a/services/inputflinger/reader/mapper/SwitchInputMapper.cpp
+++ b/services/inputflinger/reader/mapper/SwitchInputMapper.cpp
@@ -25,7 +25,7 @@
 
 SwitchInputMapper::~SwitchInputMapper() {}
 
-uint32_t SwitchInputMapper::getSources() {
+uint32_t SwitchInputMapper::getSources() const {
     return AINPUT_SOURCE_SWITCH;
 }
 
diff --git a/services/inputflinger/reader/mapper/SwitchInputMapper.h b/services/inputflinger/reader/mapper/SwitchInputMapper.h
index 4d74163..64b9aa2 100644
--- a/services/inputflinger/reader/mapper/SwitchInputMapper.h
+++ b/services/inputflinger/reader/mapper/SwitchInputMapper.h
@@ -26,7 +26,7 @@
     explicit SwitchInputMapper(InputDeviceContext& deviceContext);
     virtual ~SwitchInputMapper();
 
-    virtual uint32_t getSources() override;
+    virtual uint32_t getSources() const override;
     virtual void process(const RawEvent* rawEvent) override;
 
     virtual int32_t getSwitchState(uint32_t sourceMask, int32_t switchCode) override;
diff --git a/services/inputflinger/reader/mapper/TouchInputMapper.cpp b/services/inputflinger/reader/mapper/TouchInputMapper.cpp
index 0a5de27..4772beb 100644
--- a/services/inputflinger/reader/mapper/TouchInputMapper.cpp
+++ b/services/inputflinger/reader/mapper/TouchInputMapper.cpp
@@ -178,7 +178,7 @@
 
 TouchInputMapper::~TouchInputMapper() {}
 
-uint32_t TouchInputMapper::getSources() {
+uint32_t TouchInputMapper::getSources() const {
     return mSource;
 }
 
diff --git a/services/inputflinger/reader/mapper/TouchInputMapper.h b/services/inputflinger/reader/mapper/TouchInputMapper.h
index 9fd30e4..c948f56 100644
--- a/services/inputflinger/reader/mapper/TouchInputMapper.h
+++ b/services/inputflinger/reader/mapper/TouchInputMapper.h
@@ -138,7 +138,7 @@
     explicit TouchInputMapper(InputDeviceContext& deviceContext);
     ~TouchInputMapper() override;
 
-    uint32_t getSources() override;
+    uint32_t getSources() const override;
     void populateDeviceInfo(InputDeviceInfo* deviceInfo) override;
     void dump(std::string& dump) override;
     void configure(nsecs_t when, const InputReaderConfiguration* config, uint32_t changes) override;
diff --git a/services/inputflinger/reader/mapper/VibratorInputMapper.cpp b/services/inputflinger/reader/mapper/VibratorInputMapper.cpp
index 1976fed..33db527 100644
--- a/services/inputflinger/reader/mapper/VibratorInputMapper.cpp
+++ b/services/inputflinger/reader/mapper/VibratorInputMapper.cpp
@@ -25,7 +25,7 @@
 
 VibratorInputMapper::~VibratorInputMapper() {}
 
-uint32_t VibratorInputMapper::getSources() {
+uint32_t VibratorInputMapper::getSources() const {
     return 0;
 }
 
diff --git a/services/inputflinger/reader/mapper/VibratorInputMapper.h b/services/inputflinger/reader/mapper/VibratorInputMapper.h
index 7ce621a..d3c22b6 100644
--- a/services/inputflinger/reader/mapper/VibratorInputMapper.h
+++ b/services/inputflinger/reader/mapper/VibratorInputMapper.h
@@ -26,7 +26,7 @@
     explicit VibratorInputMapper(InputDeviceContext& deviceContext);
     virtual ~VibratorInputMapper();
 
-    virtual uint32_t getSources() override;
+    virtual uint32_t getSources() const override;
     virtual void populateDeviceInfo(InputDeviceInfo* deviceInfo) override;
     virtual void process(const RawEvent* rawEvent) override;