Create Native getTouchpadHardwareProperties()

Create Native method to get the hardware properties of touchpad and
connected it to InputManagerService.java using JNI

Bug: 286551975

Test: Verified that the data flow works correctly and the method references are valid.
Flag: com.android.hardware.input.touchpad_visualizer
Change-Id: Ic6c32eabd3078ff2b50e3b3bb430abadd9dd752c
diff --git a/services/inputflinger/include/InputReaderBase.h b/services/inputflinger/include/InputReaderBase.h
index 42a03c1..2f9d658 100644
--- a/services/inputflinger/include/InputReaderBase.h
+++ b/services/inputflinger/include/InputReaderBase.h
@@ -35,6 +35,7 @@
 
 #include "PointerControllerInterface.h"
 #include "VibrationElement.h"
+#include "include/gestures.h"
 
 // Maximum supported size of a vibration pattern.
 // Must be at least 2.
@@ -363,6 +364,8 @@
 
     virtual std::vector<InputDeviceSensorInfo> getSensors(int32_t deviceId) = 0;
 
+    virtual std::optional<HardwareProperties> getTouchpadHardwareProperties(int32_t deviceId) = 0;
+
     /* Return true if the device can send input events to the specified display. */
     virtual bool canDispatchToDisplay(int32_t deviceId, ui::LogicalDisplayId displayId) = 0;
 
diff --git a/services/inputflinger/reader/InputDevice.cpp b/services/inputflinger/reader/InputDevice.cpp
index 2daf195..70f024e 100644
--- a/services/inputflinger/reader/InputDevice.cpp
+++ b/services/inputflinger/reader/InputDevice.cpp
@@ -725,6 +725,15 @@
     return count;
 }
 
+std::optional<HardwareProperties> InputDevice::getTouchpadHardwareProperties() {
+    std::optional<HardwareProperties> result = first_in_mappers<HardwareProperties>(
+            [](InputMapper& mapper) -> std::optional<HardwareProperties> {
+                return mapper.getTouchpadHardwareProperties();
+            });
+
+    return result;
+}
+
 void InputDevice::updateLedState(bool reset) {
     for_each_mapper([reset](InputMapper& mapper) { mapper.updateLedState(reset); });
 }
diff --git a/services/inputflinger/reader/InputReader.cpp b/services/inputflinger/reader/InputReader.cpp
index f0e53b5..a5b1249 100644
--- a/services/inputflinger/reader/InputReader.cpp
+++ b/services/inputflinger/reader/InputReader.cpp
@@ -33,6 +33,7 @@
 #include <utils/Thread.h>
 
 #include "InputDevice.h"
+#include "include/gestures.h"
 
 using android::base::StringPrintf;
 
@@ -817,6 +818,18 @@
     return device->getDeviceInfo().getSensors();
 }
 
+std::optional<HardwareProperties> InputReader::getTouchpadHardwareProperties(int32_t deviceId) {
+    std::scoped_lock _l(mLock);
+
+    InputDevice* device = findInputDeviceLocked(deviceId);
+
+    if (device == nullptr) {
+        return {};
+    }
+
+    return device->getTouchpadHardwareProperties();
+}
+
 bool InputReader::setLightColor(int32_t deviceId, int32_t lightId, int32_t color) {
     std::scoped_lock _l(mLock);
 
diff --git a/services/inputflinger/reader/include/InputDevice.h b/services/inputflinger/reader/include/InputDevice.h
index 93785f6..021978d 100644
--- a/services/inputflinger/reader/include/InputDevice.h
+++ b/services/inputflinger/reader/include/InputDevice.h
@@ -141,6 +141,8 @@
 
     size_t getMapperCount();
 
+    std::optional<HardwareProperties> getTouchpadHardwareProperties();
+
     // construct and add a mapper to the input device
     template <class T, typename... Args>
     T& addMapper(int32_t eventHubId, Args... args) {
diff --git a/services/inputflinger/reader/include/InputReader.h b/services/inputflinger/reader/include/InputReader.h
index 4f60a8a..2cc0a00 100644
--- a/services/inputflinger/reader/include/InputReader.h
+++ b/services/inputflinger/reader/include/InputReader.h
@@ -104,6 +104,8 @@
 
     std::vector<InputDeviceSensorInfo> getSensors(int32_t deviceId) override;
 
+    std::optional<HardwareProperties> getTouchpadHardwareProperties(int32_t deviceId) override;
+
     bool setLightColor(int32_t deviceId, int32_t lightId, int32_t color) override;
 
     bool setLightPlayerId(int32_t deviceId, int32_t lightId, int32_t playerId) override;
diff --git a/services/inputflinger/reader/mapper/InputMapper.cpp b/services/inputflinger/reader/mapper/InputMapper.cpp
index c44c48c..627df7f 100644
--- a/services/inputflinger/reader/mapper/InputMapper.cpp
+++ b/services/inputflinger/reader/mapper/InputMapper.cpp
@@ -140,4 +140,7 @@
     dump += StringPrintf(INDENT4 "Tool Type: %s\n", ftl::enum_string(state.toolType).c_str());
 }
 
+std::optional<HardwareProperties> InputMapper::getTouchpadHardwareProperties() {
+    return std::nullopt;
+}
 } // namespace android
diff --git a/services/inputflinger/reader/mapper/InputMapper.h b/services/inputflinger/reader/mapper/InputMapper.h
index e5afcc7..75cc4bb 100644
--- a/services/inputflinger/reader/mapper/InputMapper.h
+++ b/services/inputflinger/reader/mapper/InputMapper.h
@@ -122,6 +122,8 @@
     virtual std::optional<ui::LogicalDisplayId> getAssociatedDisplayId() { return std::nullopt; }
     virtual void updateLedState(bool reset) {}
 
+    virtual std::optional<HardwareProperties> getTouchpadHardwareProperties();
+
 protected:
     InputDeviceContext& mDeviceContext;
 
diff --git a/services/inputflinger/reader/mapper/TouchpadInputMapper.cpp b/services/inputflinger/reader/mapper/TouchpadInputMapper.cpp
index 5c5fd3f..7931613 100644
--- a/services/inputflinger/reader/mapper/TouchpadInputMapper.cpp
+++ b/services/inputflinger/reader/mapper/TouchpadInputMapper.cpp
@@ -251,7 +251,8 @@
     }
 
     mGestureInterpreter->Initialize(GESTURES_DEVCLASS_TOUCHPAD);
-    mGestureInterpreter->SetHardwareProperties(createHardwareProperties(deviceContext));
+    mHardwareProperties = createHardwareProperties(deviceContext);
+    mGestureInterpreter->SetHardwareProperties(mHardwareProperties);
     // Even though we don't explicitly delete copy/move semantics, it's safe to
     // give away pointers to TouchpadInputMapper and its members here because
     // 1) mGestureInterpreter's lifecycle is determined by TouchpadInputMapper, and
@@ -493,4 +494,8 @@
     return mDisplayId;
 }
 
+std::optional<HardwareProperties> TouchpadInputMapper::getTouchpadHardwareProperties() {
+    return mHardwareProperties;
+}
+
 } // namespace android
diff --git a/services/inputflinger/reader/mapper/TouchpadInputMapper.h b/services/inputflinger/reader/mapper/TouchpadInputMapper.h
index 8baa63e..8bfc159 100644
--- a/services/inputflinger/reader/mapper/TouchpadInputMapper.h
+++ b/services/inputflinger/reader/mapper/TouchpadInputMapper.h
@@ -68,6 +68,8 @@
 
     std::optional<ui::LogicalDisplayId> getAssociatedDisplayId() override;
 
+    std::optional<HardwareProperties> getTouchpadHardwareProperties() override;
+
 private:
     void resetGestureInterpreter(nsecs_t when);
     explicit TouchpadInputMapper(InputDeviceContext& deviceContext,
@@ -92,6 +94,7 @@
     HardwareStateConverter mStateConverter;
     GestureConverter mGestureConverter;
     CapturedTouchpadEventConverter mCapturedEventConverter;
+    HardwareProperties mHardwareProperties;
 
     bool mPointerCaptured = false;
     bool mResettingInterpreter = false;
diff --git a/services/inputflinger/tests/fuzzers/InputReaderFuzzer.cpp b/services/inputflinger/tests/fuzzers/InputReaderFuzzer.cpp
index d552c19..3e4a19b 100644
--- a/services/inputflinger/tests/fuzzers/InputReaderFuzzer.cpp
+++ b/services/inputflinger/tests/fuzzers/InputReaderFuzzer.cpp
@@ -117,6 +117,10 @@
         return reader->getSensors(deviceId);
     }
 
+    std::optional<HardwareProperties> getTouchpadHardwareProperties(int32_t deviceId) {
+        return reader->getTouchpadHardwareProperties(deviceId);
+    }
+
     bool canDispatchToDisplay(int32_t deviceId, ui::LogicalDisplayId displayId) {
         return reader->canDispatchToDisplay(deviceId, displayId);
     }