bool InputView::dispatchGenericMotionEvent(AInputEvent* motionEvent)
{
int64_t downTime = AMotionEvent_getDownTime(motionEvent);
int64_t eventTime = AMotionEvent_getEventTime(motionEvent);
int32_t action = AMotionEvent_getAction(motionEvent);
int32_t metaState = AMotionEvent_getMetaState(motionEvent);
int32_t pointerCount = AMotionEvent_getPointerCount(motionEvent);
int32_t buttonState = AMotionEvent_getButtonState(motionEvent);
float xPrecision = AMotionEvent_getXPrecision(motionEvent);
float yPrecision = AMotionEvent_getYPrecision(motionEvent);
int32_t deviceId = AInputEvent_getDeviceId(motionEvent);
int32_t edgeFlags = AMotionEvent_getEdgeFlags(motionEvent);
int32_t flags = AMotionEvent_getFlags(motionEvent);
int32_t source = AInputEvent_getSource(motionEvent);
int* pointerPropertiesId = new int[pointerCount];
int* pointerPropertiesToolType = new int[pointerCount];
float* pointerCoordsOrientation = new float[pointerCount];
float* pointerCoordsPressure = new float[pointerCount];
float* pointerCoordsSize = new float[pointerCount];
float* pointerCoordsToolMajor = new float[pointerCount];
float* pointerCoordsToolMinor = new float[pointerCount];
float* pointerCoordsTouchMajor = new float[pointerCount];
float* pointerCoordsTouchMinor = new float[pointerCount];
float* pointerCoordsX = new float[pointerCount];
float* pointerCoordsY = new float[pointerCount];
std::vector<int> listAxisIndices;
std::vector<float> listAxisValues;
if (pointerCount > 0)
{
#if ENABLE_VERBOSE_LOGGING
__android_log_print(ANDROID_LOG_VERBOSE, LOG_TAG, "pointerCount=%d deviceId=%d source=%d",
pointerCount, deviceId, source);
#endif
// MotionEvent.PointerProperties
long long pointerId = AMotionEvent_getPointerId(motionEvent, 0);
int32_t toolType = AMotionEvent_getToolType(motionEvent, 0);
#if ENABLE_VERBOSE_LOGGING
__android_log_print(ANDROID_LOG_VERBOSE, LOG_TAG, "PointerProperties pointerId=%lld toolType-%d",
pointerId, toolType);
#endif
pointerPropertiesId[0] = pointerId;
pointerPropertiesToolType[0] = toolType;
// MotionEvent.PointerCoords
float orientation = AMotionEvent_getOrientation(motionEvent, pointerId);
float pressure = AMotionEvent_getPressure(motionEvent, pointerId);
float size = AMotionEvent_getSize(motionEvent, pointerId);
float toolMajor = AMotionEvent_getTouchMajor(motionEvent, pointerId);
float toolMinor = AMotionEvent_getToolMinor(motionEvent, pointerId);
float touchMajor = AMotionEvent_getTouchMajor(motionEvent, pointerId);
float touchMinor = AMotionEvent_getTouchMinor(motionEvent, pointerId);
float x = AMotionEvent_getX(motionEvent, pointerId);
float y = AMotionEvent_getY(motionEvent, pointerId);
#if ENABLE_VERBOSE_LOGGING
__android_log_print(ANDROID_LOG_VERBOSE, LOG_TAG, "PointerCoords orientation=%f pressure=%f size=%f toolMajor=%f toolMinor=%f touchMajor=%f touchMinor=%f x=%f y=%f",
orientation, pressure, size,
toolMajor, toolMinor, touchMajor, touchMinor,
x, y);
#endif
pointerCoordsOrientation[0] = orientation;
pointerCoordsPressure[0] = pressure;
pointerCoordsSize[0] = size;
pointerCoordsToolMajor[0] = toolMajor;
pointerCoordsToolMinor[0] = toolMinor;
pointerCoordsTouchMajor[0] = touchMajor;
pointerCoordsTouchMinor[0] = touchMinor;
pointerCoordsX[0] = x;
pointerCoordsY[0] = y;
for (int32_t axis = 0; axis < 50; ++axis) // 50 is based on the AXIS_value range I saw in the documentation
{
float val = AMotionEvent_getAxisValue(motionEvent, axis, pointerId);
if (val != 0.0f)
{
#if ENABLE_VERBOSE_LOGGING
__android_log_print(ANDROID_LOG_VERBOSE, LOG_TAG, "axis=%d val=%f", axis, val);
#endif
listAxisIndices.push_back(axis);
listAxisValues.push_back(val);
}
}
}
int axisCount = listAxisIndices.size();
int* axisIndexes = new int[axisCount];
float* axisValues = new float[axisCount];
for (int index = 0; index < axisCount; ++index)
{
axisIndexes[index] = listAxisIndices[index];
axisValues[index] = listAxisValues[index];
}
listAxisIndices.clear();
listAxisValues.clear();
bool handled = javaDispatchGenericMotionEvent(
downTime,
eventTime,
action,
pointerCount,
metaState,
buttonState,
xPrecision,
yPrecision,
deviceId,
edgeFlags,
source,
flags,
pointerPropertiesId,
pointerPropertiesToolType,
pointerCoordsOrientation,
pointerCoordsPressure,
pointerCoordsSize,
pointerCoordsToolMajor,
pointerCoordsToolMinor,
pointerCoordsTouchMajor,
pointerCoordsTouchMinor,
pointerCoordsX,
pointerCoordsY,
axisCount,
axisIndexes,
axisValues);
delete pointerPropertiesId;
delete pointerPropertiesToolType;
delete pointerCoordsOrientation;
delete pointerCoordsPressure;
delete pointerCoordsSize;
delete pointerCoordsToolMajor;
delete pointerCoordsToolMinor;
delete pointerCoordsTouchMajor;
delete pointerCoordsTouchMinor;
delete pointerCoordsX;
delete pointerCoordsY;
delete axisIndexes;
delete axisValues;
return handled;
}
int WindowImplAndroid::processScrollEvent(AInputEvent* _event, ActivityStates* states)
{
// Prepare the Java virtual machine
jint lResult;
jint lFlags = 0;
JavaVM* lJavaVM = states->activity->vm;
JNIEnv* lJNIEnv = states->activity->env;
JavaVMAttachArgs lJavaVMAttachArgs;
lJavaVMAttachArgs.version = JNI_VERSION_1_6;
lJavaVMAttachArgs.name = "NativeThread";
lJavaVMAttachArgs.group = NULL;
lResult=lJavaVM->AttachCurrentThread(&lJNIEnv, &lJavaVMAttachArgs);
if (lResult == JNI_ERR) {
err() << "Failed to initialize JNI, couldn't get the Unicode value" << std::endl;
return 0;
}
// Retrieve everything we need to create this MotionEvent in Java
jlong downTime = AMotionEvent_getDownTime(_event);
jlong eventTime = AMotionEvent_getEventTime(_event);
jint action = AMotionEvent_getAction(_event);
jfloat x = AMotionEvent_getX(_event, 0);
jfloat y = AMotionEvent_getY(_event, 0);
jfloat pressure = AMotionEvent_getPressure(_event, 0);
jfloat size = AMotionEvent_getSize(_event, 0);
jint metaState = AMotionEvent_getMetaState(_event);
jfloat xPrecision = AMotionEvent_getXPrecision(_event);
jfloat yPrecision = AMotionEvent_getYPrecision(_event);
jint deviceId = AInputEvent_getDeviceId(_event);
jint edgeFlags = AMotionEvent_getEdgeFlags(_event);
// Create the MotionEvent object in Java trough its static constructor obtain()
jclass ClassMotionEvent = lJNIEnv->FindClass("android/view/MotionEvent");
jmethodID StaticMethodObtain = lJNIEnv->GetStaticMethodID(ClassMotionEvent, "obtain", "(JJIFFFFIFFII)Landroid/view/MotionEvent;");
jobject ObjectMotionEvent = lJNIEnv->CallStaticObjectMethod(ClassMotionEvent, StaticMethodObtain, downTime, eventTime, action, x, y, pressure, size, metaState, xPrecision, yPrecision, deviceId, edgeFlags);
// Call its getAxisValue() method to get the delta value of our wheel move event
jmethodID MethodGetAxisValue = lJNIEnv->GetMethodID(ClassMotionEvent, "getAxisValue", "(I)F");
jfloat delta = lJNIEnv->CallFloatMethod(ObjectMotionEvent, MethodGetAxisValue, 0x00000001);
lJNIEnv->DeleteLocalRef(ClassMotionEvent);
lJNIEnv->DeleteLocalRef(ObjectMotionEvent);
// Create and send our mouse wheel event
Event event;
event.type = Event::MouseWheelMoved;
event.mouseWheel.delta = static_cast<double>(delta);
event.mouseWheel.x = AMotionEvent_getX(_event, 0);
event.mouseWheel.y = AMotionEvent_getY(_event, 0);
forwardEvent(event);
// Detach this thread from the JVM
lJavaVM->DetachCurrentThread();
return 1;
}
