Support for InputDevice ViewBehavior
This change creates a struct within InputDeviceInfo to hold View related
behaviors of an input device. Currently, a single behavior is supported:
device.viewBehavior_smoothScroll. This can be specified in an IDC file
to hint clients of the InputDevice that they should animate scrolls for
motion events generated by the InputDevice.
Bug: 246946631
Test: add property in IDC, check API returns expected value
Test: atest frameworks/native/services/inputflinger/tests/InputReader_test.cpp
Change-Id: Ibe373cadc40d2a08116e787b744dd30812638edb
diff --git a/include/input/InputDevice.h b/include/input/InputDevice.h
index b7751f7..57b659d 100644
--- a/include/input/InputDevice.h
+++ b/include/input/InputDevice.h
@@ -75,6 +75,17 @@
bool operator!=(const InputDeviceIdentifier&) const = default;
};
+/**
+ * Holds View related behaviors for an InputDevice.
+ */
+struct InputDeviceViewBehavior {
+ /**
+ * The smooth scroll behavior that applies for all source/axis, if defined by the device.
+ * Empty optional if the device has not specified the default smooth scroll behavior.
+ */
+ std::optional<bool> shouldSmoothScroll;
+};
+
/* Types of input device sensors. Keep sync with core/java/android/hardware/Sensor.java */
enum class InputDeviceSensorType : int32_t {
ACCELEROMETER = ASENSOR_TYPE_ACCELEROMETER,
@@ -266,7 +277,8 @@
void initialize(int32_t id, int32_t generation, int32_t controllerNumber,
const InputDeviceIdentifier& identifier, const std::string& alias,
- bool isExternal, bool hasMic, int32_t associatedDisplayId);
+ bool isExternal, bool hasMic, int32_t associatedDisplayId,
+ InputDeviceViewBehavior viewBehavior = {{}});
inline int32_t getId() const { return mId; }
inline int32_t getControllerNumber() const { return mControllerNumber; }
@@ -298,6 +310,8 @@
return mKeyboardLayoutInfo;
}
+ inline const InputDeviceViewBehavior& getViewBehavior() const { return mViewBehavior; }
+
inline void setKeyCharacterMap(const std::shared_ptr<KeyCharacterMap> value) {
mKeyCharacterMap = value;
}
@@ -359,6 +373,8 @@
std::unordered_map<int32_t, InputDeviceLightInfo> mLights;
/* Map from battery ID to battery info */
std::unordered_map<int32_t, InputDeviceBatteryInfo> mBatteries;
+ /** The View related behaviors for the device. */
+ InputDeviceViewBehavior mViewBehavior;
};
/* Types of input device configuration files. */
diff --git a/libs/input/InputDevice.cpp b/libs/input/InputDevice.cpp
index 9c7c0c1..d4dbc45 100644
--- a/libs/input/InputDevice.cpp
+++ b/libs/input/InputDevice.cpp
@@ -190,14 +190,16 @@
mHasSensor(other.mHasSensor),
mMotionRanges(other.mMotionRanges),
mSensors(other.mSensors),
- mLights(other.mLights) {}
+ mLights(other.mLights),
+ mViewBehavior(other.mViewBehavior) {}
InputDeviceInfo::~InputDeviceInfo() {
}
void InputDeviceInfo::initialize(int32_t id, int32_t generation, int32_t controllerNumber,
const InputDeviceIdentifier& identifier, const std::string& alias,
- bool isExternal, bool hasMic, int32_t associatedDisplayId) {
+ bool isExternal, bool hasMic, int32_t associatedDisplayId,
+ InputDeviceViewBehavior viewBehavior) {
mId = id;
mGeneration = generation;
mControllerNumber = controllerNumber;
@@ -212,6 +214,7 @@
mHasBattery = false;
mHasButtonUnderPad = false;
mHasSensor = false;
+ mViewBehavior = viewBehavior;
mUsiVersion.reset();
mMotionRanges.clear();
mSensors.clear();
diff --git a/libs/input/input_flags.aconfig b/libs/input/input_flags.aconfig
index 174464d..ec7a284 100644
--- a/libs/input/input_flags.aconfig
+++ b/libs/input/input_flags.aconfig
@@ -111,3 +111,10 @@
description: "Move user-activity poke rate-limiting from PowerManagerService to InputDispatcher."
bug: "320499729"
}
+
+flag {
+ name: "input_device_view_behavior_api"
+ namespace: "input"
+ description: "Controls the API to provide InputDevice view behavior."
+ bug: "246946631"
+}
diff --git a/services/inputflinger/reader/InputDevice.cpp b/services/inputflinger/reader/InputDevice.cpp
index a41064b..f3f15df 100644
--- a/services/inputflinger/reader/InputDevice.cpp
+++ b/services/inputflinger/reader/InputDevice.cpp
@@ -251,6 +251,7 @@
mAssociatedDeviceType =
getValueByKey(readerConfig.deviceTypeAssociations, mIdentifier.location);
mIsWaking = mConfiguration.getBool("device.wake").value_or(false);
+ mShouldSmoothScroll = mConfiguration.getBool("device.viewBehavior_smoothScroll");
}
if (!changes.any() || changes.test(Change::DEVICE_ALIAS)) {
@@ -401,7 +402,8 @@
InputDeviceInfo InputDevice::getDeviceInfo() {
InputDeviceInfo outDeviceInfo;
outDeviceInfo.initialize(mId, mGeneration, mControllerNumber, mIdentifier, mAlias, mIsExternal,
- mHasMic, getAssociatedDisplayId().value_or(ADISPLAY_ID_NONE));
+ mHasMic, getAssociatedDisplayId().value_or(ADISPLAY_ID_NONE),
+ {mShouldSmoothScroll});
for_each_mapper(
[&outDeviceInfo](InputMapper& mapper) { mapper.populateDeviceInfo(outDeviceInfo); });
diff --git a/services/inputflinger/reader/include/InputDevice.h b/services/inputflinger/reader/include/InputDevice.h
index ba7234b..0719b0c 100644
--- a/services/inputflinger/reader/include/InputDevice.h
+++ b/services/inputflinger/reader/include/InputDevice.h
@@ -199,6 +199,7 @@
std::optional<DisplayViewport> mAssociatedViewport;
bool mHasMic;
bool mDropUntilNextSync;
+ std::optional<bool> mShouldSmoothScroll;
typedef int32_t (InputMapper::*GetStateFunc)(uint32_t sourceMask, int32_t code);
int32_t getState(uint32_t sourceMask, int32_t code, GetStateFunc getStateFunc);
diff --git a/services/inputflinger/tests/InputReader_test.cpp b/services/inputflinger/tests/InputReader_test.cpp
index 460a7b1..c1dc7ff 100644
--- a/services/inputflinger/tests/InputReader_test.cpp
+++ b/services/inputflinger/tests/InputReader_test.cpp
@@ -2706,6 +2706,31 @@
ASSERT_NO_FATAL_FAILURE(mapper2.assertProcessWasCalled());
}
+TEST_F(InputDeviceTest, Configure_SmoothScrollViewBehaviorNotSet) {
+ // Set some behavior to force the configuration to be update.
+ mFakeEventHub->addConfigurationProperty(EVENTHUB_ID, "device.wake", "1");
+ mDevice->addMapper<FakeInputMapper>(EVENTHUB_ID, mFakePolicy->getReaderConfiguration(),
+ AINPUT_SOURCE_KEYBOARD);
+
+ std::list<NotifyArgs> unused =
+ mDevice->configure(ARBITRARY_TIME, mFakePolicy->getReaderConfiguration(),
+ /*changes=*/{});
+
+ ASSERT_FALSE(mDevice->getDeviceInfo().getViewBehavior().shouldSmoothScroll.has_value());
+}
+
+TEST_F(InputDeviceTest, Configure_SmoothScrollViewBehaviorEnabled) {
+ mFakeEventHub->addConfigurationProperty(EVENTHUB_ID, "device.viewBehavior_smoothScroll", "1");
+ mDevice->addMapper<FakeInputMapper>(EVENTHUB_ID, mFakePolicy->getReaderConfiguration(),
+ AINPUT_SOURCE_KEYBOARD);
+
+ std::list<NotifyArgs> unused =
+ mDevice->configure(ARBITRARY_TIME, mFakePolicy->getReaderConfiguration(),
+ /*changes=*/{});
+
+ ASSERT_TRUE(mDevice->getDeviceInfo().getViewBehavior().shouldSmoothScroll.value_or(false));
+}
+
TEST_F(InputDeviceTest, WakeDevice_AddsWakeFlagToProcessNotifyArgs) {
mFakeEventHub->addConfigurationProperty(EVENTHUB_ID, "device.wake", "1");
FakeInputMapper& mapper =