| /* |
| * Copyright (C) 2010 The Android Open Source Project |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| #define LOG_TAG "Input" |
| //#define LOG_NDEBUG 0 |
| |
| #include <attestation/HmacKeyManager.h> |
| #include <cutils/compiler.h> |
| #include <inttypes.h> |
| #include <limits.h> |
| #include <string.h> |
| |
| #include <android-base/properties.h> |
| #include <android-base/stringprintf.h> |
| #include <input/Input.h> |
| #include <input/InputDevice.h> |
| #include <input/InputEventLabels.h> |
| |
| #ifdef __linux__ |
| #include <binder/Parcel.h> |
| #endif |
| #ifdef __ANDROID__ |
| #include <sys/random.h> |
| #endif |
| |
| using android::base::StringPrintf; |
| |
| namespace android { |
| |
| namespace { |
| |
| // When per-window-input-rotation is enabled, InputFlinger works in the un-rotated display |
| // coordinates and SurfaceFlinger includes the display rotation in the input window transforms. |
| bool isPerWindowInputRotationEnabled() { |
| static const bool PER_WINDOW_INPUT_ROTATION = |
| base::GetBoolProperty("persist.debug.per_window_input_rotation", false); |
| |
| return PER_WINDOW_INPUT_ROTATION; |
| } |
| |
| float transformAngle(const ui::Transform& transform, float angleRadians) { |
| // Construct and transform a vector oriented at the specified clockwise angle from vertical. |
| // Coordinate system: down is increasing Y, right is increasing X. |
| float x = sinf(angleRadians); |
| float y = -cosf(angleRadians); |
| vec2 transformedPoint = transform.transform(x, y); |
| |
| // Determine how the origin is transformed by the matrix so that we |
| // can transform orientation vectors. |
| const vec2 origin = transform.transform(0, 0); |
| |
| transformedPoint.x -= origin.x; |
| transformedPoint.y -= origin.y; |
| |
| // Derive the transformed vector's clockwise angle from vertical. |
| float result = atan2f(transformedPoint.x, -transformedPoint.y); |
| if (result < -M_PI_2) { |
| result += M_PI; |
| } else if (result > M_PI_2) { |
| result -= M_PI; |
| } |
| return result; |
| } |
| |
| // Rotates the given point to the transform's orientation. If the display width and height are |
| // provided, the point is rotated in the screen space. Otherwise, the point is rotated about the |
| // origin. This helper is used to avoid the extra overhead of creating new Transforms. |
| vec2 rotatePoint(const ui::Transform& transform, float x, float y, int32_t displayWidth = 0, |
| int32_t displayHeight = 0) { |
| // 0x7 encapsulates all 3 rotations (see ui::Transform::RotationFlags) |
| static const int ALL_ROTATIONS_MASK = 0x7; |
| const uint32_t orientation = (transform.getOrientation() & ALL_ROTATIONS_MASK); |
| if (orientation == ui::Transform::ROT_0) { |
| return {x, y}; |
| } |
| |
| vec2 xy(x, y); |
| if (orientation == ui::Transform::ROT_90) { |
| xy.x = displayHeight - y; |
| xy.y = x; |
| } else if (orientation == ui::Transform::ROT_180) { |
| xy.x = displayWidth - x; |
| xy.y = displayHeight - y; |
| } else if (orientation == ui::Transform::ROT_270) { |
| xy.x = y; |
| xy.y = displayWidth - x; |
| } |
| return xy; |
| } |
| |
| } // namespace |
| |
| const char* motionClassificationToString(MotionClassification classification) { |
| switch (classification) { |
| case MotionClassification::NONE: |
| return "NONE"; |
| case MotionClassification::AMBIGUOUS_GESTURE: |
| return "AMBIGUOUS_GESTURE"; |
| case MotionClassification::DEEP_PRESS: |
| return "DEEP_PRESS"; |
| } |
| } |
| |
| // --- IdGenerator --- |
| IdGenerator::IdGenerator(Source source) : mSource(source) {} |
| |
| int32_t IdGenerator::nextId() const { |
| constexpr uint32_t SEQUENCE_NUMBER_MASK = ~SOURCE_MASK; |
| int32_t id = 0; |
| |
| // Avoid building against syscall getrandom(2) on host, which will fail build on Mac. Host doesn't |
| // use sequence number so just always return mSource. |
| #ifdef __ANDROID__ |
| constexpr size_t BUF_LEN = sizeof(id); |
| size_t totalBytes = 0; |
| while (totalBytes < BUF_LEN) { |
| ssize_t bytes = TEMP_FAILURE_RETRY(getrandom(&id, BUF_LEN, GRND_NONBLOCK)); |
| if (CC_UNLIKELY(bytes < 0)) { |
| ALOGW("Failed to fill in random number for sequence number: %s.", strerror(errno)); |
| id = 0; |
| break; |
| } |
| totalBytes += bytes; |
| } |
| #endif // __ANDROID__ |
| |
| return (id & SEQUENCE_NUMBER_MASK) | static_cast<int32_t>(mSource); |
| } |
| |
| // --- InputEvent --- |
| |
| const char* inputEventTypeToString(int32_t type) { |
| switch (type) { |
| case AINPUT_EVENT_TYPE_KEY: { |
| return "KEY"; |
| } |
| case AINPUT_EVENT_TYPE_MOTION: { |
| return "MOTION"; |
| } |
| case AINPUT_EVENT_TYPE_FOCUS: { |
| return "FOCUS"; |
| } |
| case AINPUT_EVENT_TYPE_CAPTURE: { |
| return "CAPTURE"; |
| } |
| case AINPUT_EVENT_TYPE_DRAG: { |
| return "DRAG"; |
| } |
| } |
| return "UNKNOWN"; |
| } |
| |
| VerifiedKeyEvent verifiedKeyEventFromKeyEvent(const KeyEvent& event) { |
| return {{VerifiedInputEvent::Type::KEY, event.getDeviceId(), event.getEventTime(), |
| event.getSource(), event.getDisplayId()}, |
| event.getAction(), |
| event.getDownTime(), |
| event.getFlags() & VERIFIED_KEY_EVENT_FLAGS, |
| event.getKeyCode(), |
| event.getScanCode(), |
| event.getMetaState(), |
| event.getRepeatCount()}; |
| } |
| |
| VerifiedMotionEvent verifiedMotionEventFromMotionEvent(const MotionEvent& event) { |
| return {{VerifiedInputEvent::Type::MOTION, event.getDeviceId(), event.getEventTime(), |
| event.getSource(), event.getDisplayId()}, |
| event.getRawX(0), |
| event.getRawY(0), |
| event.getActionMasked(), |
| event.getDownTime(), |
| event.getFlags() & VERIFIED_MOTION_EVENT_FLAGS, |
| event.getMetaState(), |
| event.getButtonState()}; |
| } |
| |
| void InputEvent::initialize(int32_t id, int32_t deviceId, uint32_t source, int32_t displayId, |
| std::array<uint8_t, 32> hmac) { |
| mId = id; |
| mDeviceId = deviceId; |
| mSource = source; |
| mDisplayId = displayId; |
| mHmac = hmac; |
| } |
| |
| void InputEvent::initialize(const InputEvent& from) { |
| mId = from.mId; |
| mDeviceId = from.mDeviceId; |
| mSource = from.mSource; |
| mDisplayId = from.mDisplayId; |
| mHmac = from.mHmac; |
| } |
| |
| int32_t InputEvent::nextId() { |
| static IdGenerator idGen(IdGenerator::Source::OTHER); |
| return idGen.nextId(); |
| } |
| |
| // --- KeyEvent --- |
| |
| const char* KeyEvent::getLabel(int32_t keyCode) { |
| return InputEventLookup::getLabelByKeyCode(keyCode); |
| } |
| |
| int32_t KeyEvent::getKeyCodeFromLabel(const char* label) { |
| return InputEventLookup::getKeyCodeByLabel(label); |
| } |
| |
| void KeyEvent::initialize(int32_t id, int32_t deviceId, uint32_t source, int32_t displayId, |
| std::array<uint8_t, 32> hmac, int32_t action, int32_t flags, |
| int32_t keyCode, int32_t scanCode, int32_t metaState, int32_t repeatCount, |
| nsecs_t downTime, nsecs_t eventTime) { |
| InputEvent::initialize(id, deviceId, source, displayId, hmac); |
| mAction = action; |
| mFlags = flags; |
| mKeyCode = keyCode; |
| mScanCode = scanCode; |
| mMetaState = metaState; |
| mRepeatCount = repeatCount; |
| mDownTime = downTime; |
| mEventTime = eventTime; |
| } |
| |
| void KeyEvent::initialize(const KeyEvent& from) { |
| InputEvent::initialize(from); |
| mAction = from.mAction; |
| mFlags = from.mFlags; |
| mKeyCode = from.mKeyCode; |
| mScanCode = from.mScanCode; |
| mMetaState = from.mMetaState; |
| mRepeatCount = from.mRepeatCount; |
| mDownTime = from.mDownTime; |
| mEventTime = from.mEventTime; |
| } |
| |
| const char* KeyEvent::actionToString(int32_t action) { |
| // Convert KeyEvent action to string |
| switch (action) { |
| case AKEY_EVENT_ACTION_DOWN: |
| return "DOWN"; |
| case AKEY_EVENT_ACTION_UP: |
| return "UP"; |
| case AKEY_EVENT_ACTION_MULTIPLE: |
| return "MULTIPLE"; |
| } |
| return "UNKNOWN"; |
| } |
| |
| // --- PointerCoords --- |
| |
| float PointerCoords::getAxisValue(int32_t axis) const { |
| if (axis < 0 || axis > 63 || !BitSet64::hasBit(bits, axis)){ |
| return 0; |
| } |
| return values[BitSet64::getIndexOfBit(bits, axis)]; |
| } |
| |
| status_t PointerCoords::setAxisValue(int32_t axis, float value) { |
| if (axis < 0 || axis > 63) { |
| return NAME_NOT_FOUND; |
| } |
| |
| uint32_t index = BitSet64::getIndexOfBit(bits, axis); |
| if (!BitSet64::hasBit(bits, axis)) { |
| if (value == 0) { |
| return OK; // axes with value 0 do not need to be stored |
| } |
| |
| uint32_t count = BitSet64::count(bits); |
| if (count >= MAX_AXES) { |
| tooManyAxes(axis); |
| return NO_MEMORY; |
| } |
| BitSet64::markBit(bits, axis); |
| for (uint32_t i = count; i > index; i--) { |
| values[i] = values[i - 1]; |
| } |
| } |
| |
| values[index] = value; |
| return OK; |
| } |
| |
| static inline void scaleAxisValue(PointerCoords& c, int axis, float scaleFactor) { |
| float value = c.getAxisValue(axis); |
| if (value != 0) { |
| c.setAxisValue(axis, value * scaleFactor); |
| } |
| } |
| |
| void PointerCoords::scale(float globalScaleFactor, float windowXScale, float windowYScale) { |
| // No need to scale pressure or size since they are normalized. |
| // No need to scale orientation since it is meaningless to do so. |
| |
| // If there is a global scale factor, it is included in the windowX/YScale |
| // so we don't need to apply it twice to the X/Y axes. |
| // However we don't want to apply any windowXYScale not included in the global scale |
| // to the TOUCH_MAJOR/MINOR coordinates. |
| scaleAxisValue(*this, AMOTION_EVENT_AXIS_X, windowXScale); |
| scaleAxisValue(*this, AMOTION_EVENT_AXIS_Y, windowYScale); |
| scaleAxisValue(*this, AMOTION_EVENT_AXIS_TOUCH_MAJOR, globalScaleFactor); |
| scaleAxisValue(*this, AMOTION_EVENT_AXIS_TOUCH_MINOR, globalScaleFactor); |
| scaleAxisValue(*this, AMOTION_EVENT_AXIS_TOOL_MAJOR, globalScaleFactor); |
| scaleAxisValue(*this, AMOTION_EVENT_AXIS_TOOL_MINOR, globalScaleFactor); |
| } |
| |
| void PointerCoords::scale(float globalScaleFactor) { |
| scale(globalScaleFactor, globalScaleFactor, globalScaleFactor); |
| } |
| |
| void PointerCoords::applyOffset(float xOffset, float yOffset) { |
| setAxisValue(AMOTION_EVENT_AXIS_X, getX() + xOffset); |
| setAxisValue(AMOTION_EVENT_AXIS_Y, getY() + yOffset); |
| } |
| |
| #ifdef __linux__ |
| status_t PointerCoords::readFromParcel(Parcel* parcel) { |
| bits = parcel->readInt64(); |
| |
| uint32_t count = BitSet64::count(bits); |
| if (count > MAX_AXES) { |
| return BAD_VALUE; |
| } |
| |
| for (uint32_t i = 0; i < count; i++) { |
| values[i] = parcel->readFloat(); |
| } |
| return OK; |
| } |
| |
| status_t PointerCoords::writeToParcel(Parcel* parcel) const { |
| parcel->writeInt64(bits); |
| |
| uint32_t count = BitSet64::count(bits); |
| for (uint32_t i = 0; i < count; i++) { |
| parcel->writeFloat(values[i]); |
| } |
| return OK; |
| } |
| #endif |
| |
| void PointerCoords::tooManyAxes(int axis) { |
| ALOGW("Could not set value for axis %d because the PointerCoords structure is full and " |
| "cannot contain more than %d axis values.", axis, int(MAX_AXES)); |
| } |
| |
| bool PointerCoords::operator==(const PointerCoords& other) const { |
| if (bits != other.bits) { |
| return false; |
| } |
| uint32_t count = BitSet64::count(bits); |
| for (uint32_t i = 0; i < count; i++) { |
| if (values[i] != other.values[i]) { |
| return false; |
| } |
| } |
| return true; |
| } |
| |
| void PointerCoords::copyFrom(const PointerCoords& other) { |
| bits = other.bits; |
| uint32_t count = BitSet64::count(bits); |
| for (uint32_t i = 0; i < count; i++) { |
| values[i] = other.values[i]; |
| } |
| } |
| |
| void PointerCoords::transform(const ui::Transform& transform) { |
| const vec2 xy = transform.transform(getXYValue()); |
| setAxisValue(AMOTION_EVENT_AXIS_X, xy.x); |
| setAxisValue(AMOTION_EVENT_AXIS_Y, xy.y); |
| |
| if (BitSet64::hasBit(bits, AMOTION_EVENT_AXIS_ORIENTATION)) { |
| const float val = getAxisValue(AMOTION_EVENT_AXIS_ORIENTATION); |
| setAxisValue(AMOTION_EVENT_AXIS_ORIENTATION, transformAngle(transform, val)); |
| } |
| } |
| |
| // --- PointerProperties --- |
| |
| bool PointerProperties::operator==(const PointerProperties& other) const { |
| return id == other.id |
| && toolType == other.toolType; |
| } |
| |
| void PointerProperties::copyFrom(const PointerProperties& other) { |
| id = other.id; |
| toolType = other.toolType; |
| } |
| |
| |
| // --- MotionEvent --- |
| |
| void MotionEvent::initialize(int32_t id, int32_t deviceId, uint32_t source, int32_t displayId, |
| std::array<uint8_t, 32> hmac, int32_t action, int32_t actionButton, |
| int32_t flags, int32_t edgeFlags, int32_t metaState, |
| int32_t buttonState, MotionClassification classification, |
| const ui::Transform& transform, float xPrecision, float yPrecision, |
| float rawXCursorPosition, float rawYCursorPosition, |
| int32_t displayWidth, int32_t displayHeight, nsecs_t downTime, |
| nsecs_t eventTime, size_t pointerCount, |
| const PointerProperties* pointerProperties, |
| const PointerCoords* pointerCoords) { |
| InputEvent::initialize(id, deviceId, source, displayId, hmac); |
| mAction = action; |
| mActionButton = actionButton; |
| mFlags = flags; |
| mEdgeFlags = edgeFlags; |
| mMetaState = metaState; |
| mButtonState = buttonState; |
| mClassification = classification; |
| mTransform = transform; |
| mXPrecision = xPrecision; |
| mYPrecision = yPrecision; |
| mRawXCursorPosition = rawXCursorPosition; |
| mRawYCursorPosition = rawYCursorPosition; |
| mDisplayWidth = displayWidth; |
| mDisplayHeight = displayHeight; |
| mDownTime = downTime; |
| mPointerProperties.clear(); |
| mPointerProperties.appendArray(pointerProperties, pointerCount); |
| mSampleEventTimes.clear(); |
| mSamplePointerCoords.clear(); |
| addSample(eventTime, pointerCoords); |
| } |
| |
| void MotionEvent::copyFrom(const MotionEvent* other, bool keepHistory) { |
| InputEvent::initialize(other->mId, other->mDeviceId, other->mSource, other->mDisplayId, |
| other->mHmac); |
| mAction = other->mAction; |
| mActionButton = other->mActionButton; |
| mFlags = other->mFlags; |
| mEdgeFlags = other->mEdgeFlags; |
| mMetaState = other->mMetaState; |
| mButtonState = other->mButtonState; |
| mClassification = other->mClassification; |
| mTransform = other->mTransform; |
| mXPrecision = other->mXPrecision; |
| mYPrecision = other->mYPrecision; |
| mRawXCursorPosition = other->mRawXCursorPosition; |
| mRawYCursorPosition = other->mRawYCursorPosition; |
| mDisplayWidth = other->mDisplayWidth; |
| mDisplayHeight = other->mDisplayHeight; |
| mDownTime = other->mDownTime; |
| mPointerProperties = other->mPointerProperties; |
| |
| if (keepHistory) { |
| mSampleEventTimes = other->mSampleEventTimes; |
| mSamplePointerCoords = other->mSamplePointerCoords; |
| } else { |
| mSampleEventTimes.clear(); |
| mSampleEventTimes.push_back(other->getEventTime()); |
| mSamplePointerCoords.clear(); |
| size_t pointerCount = other->getPointerCount(); |
| size_t historySize = other->getHistorySize(); |
| mSamplePointerCoords.appendArray(other->mSamplePointerCoords.array() |
| + (historySize * pointerCount), pointerCount); |
| } |
| } |
| |
| void MotionEvent::addSample( |
| int64_t eventTime, |
| const PointerCoords* pointerCoords) { |
| mSampleEventTimes.push_back(eventTime); |
| mSamplePointerCoords.appendArray(pointerCoords, getPointerCount()); |
| } |
| |
| float MotionEvent::getXCursorPosition() const { |
| vec2 vals = mTransform.transform(getRawXCursorPosition(), getRawYCursorPosition()); |
| return vals.x; |
| } |
| |
| float MotionEvent::getYCursorPosition() const { |
| vec2 vals = mTransform.transform(getRawXCursorPosition(), getRawYCursorPosition()); |
| return vals.y; |
| } |
| |
| void MotionEvent::setCursorPosition(float x, float y) { |
| ui::Transform inverse = mTransform.inverse(); |
| vec2 vals = inverse.transform(x, y); |
| mRawXCursorPosition = vals.x; |
| mRawYCursorPosition = vals.y; |
| } |
| |
| const PointerCoords* MotionEvent::getRawPointerCoords(size_t pointerIndex) const { |
| return &mSamplePointerCoords[getHistorySize() * getPointerCount() + pointerIndex]; |
| } |
| |
| float MotionEvent::getRawAxisValue(int32_t axis, size_t pointerIndex) const { |
| return getHistoricalRawAxisValue(axis, pointerIndex, getHistorySize()); |
| } |
| |
| float MotionEvent::getAxisValue(int32_t axis, size_t pointerIndex) const { |
| return getHistoricalAxisValue(axis, pointerIndex, getHistorySize()); |
| } |
| |
| const PointerCoords* MotionEvent::getHistoricalRawPointerCoords( |
| size_t pointerIndex, size_t historicalIndex) const { |
| return &mSamplePointerCoords[historicalIndex * getPointerCount() + pointerIndex]; |
| } |
| |
| float MotionEvent::getHistoricalRawAxisValue(int32_t axis, size_t pointerIndex, |
| size_t historicalIndex) const { |
| const PointerCoords* coords = getHistoricalRawPointerCoords(pointerIndex, historicalIndex); |
| |
| if (!isPerWindowInputRotationEnabled()) return coords->getAxisValue(axis); |
| |
| if (axis == AMOTION_EVENT_AXIS_X || axis == AMOTION_EVENT_AXIS_Y) { |
| // For compatibility, convert raw coordinates into "oriented screen space". Once app |
| // developers are educated about getRaw, we can consider removing this. |
| const vec2 xy = rotatePoint(mTransform, coords->getX(), coords->getY(), mDisplayWidth, |
| mDisplayHeight); |
| static_assert(AMOTION_EVENT_AXIS_X == 0 && AMOTION_EVENT_AXIS_Y == 1); |
| return xy[axis]; |
| } |
| |
| return coords->getAxisValue(axis); |
| } |
| |
| float MotionEvent::getHistoricalAxisValue(int32_t axis, size_t pointerIndex, |
| size_t historicalIndex) const { |
| const PointerCoords* coords = getHistoricalRawPointerCoords(pointerIndex, historicalIndex); |
| |
| if (axis == AMOTION_EVENT_AXIS_X || axis == AMOTION_EVENT_AXIS_Y) { |
| const vec2 xy = mTransform.transform(coords->getXYValue()); |
| static_assert(AMOTION_EVENT_AXIS_X == 0 && AMOTION_EVENT_AXIS_Y == 1); |
| return xy[axis]; |
| } |
| |
| return coords->getAxisValue(axis); |
| } |
| |
| ssize_t MotionEvent::findPointerIndex(int32_t pointerId) const { |
| size_t pointerCount = mPointerProperties.size(); |
| for (size_t i = 0; i < pointerCount; i++) { |
| if (mPointerProperties.itemAt(i).id == pointerId) { |
| return i; |
| } |
| } |
| return -1; |
| } |
| |
| void MotionEvent::offsetLocation(float xOffset, float yOffset) { |
| float currXOffset = mTransform.tx(); |
| float currYOffset = mTransform.ty(); |
| mTransform.set(currXOffset + xOffset, currYOffset + yOffset); |
| } |
| |
| void MotionEvent::scale(float globalScaleFactor) { |
| mTransform.set(mTransform.tx() * globalScaleFactor, mTransform.ty() * globalScaleFactor); |
| mXPrecision *= globalScaleFactor; |
| mYPrecision *= globalScaleFactor; |
| |
| size_t numSamples = mSamplePointerCoords.size(); |
| for (size_t i = 0; i < numSamples; i++) { |
| mSamplePointerCoords.editItemAt(i).scale(globalScaleFactor, globalScaleFactor, |
| globalScaleFactor); |
| } |
| } |
| |
| void MotionEvent::transform(const std::array<float, 9>& matrix) { |
| // We want to preserve the raw axes values stored in the PointerCoords, so we just update the |
| // transform using the values passed in. |
| ui::Transform newTransform; |
| newTransform.set(matrix); |
| mTransform = newTransform * mTransform; |
| |
| // We need to update the AXIS_ORIENTATION value here to maintain the old behavior where the |
| // orientation angle is not affected by the initial transformation set in the MotionEvent. |
| std::for_each(mSamplePointerCoords.begin(), mSamplePointerCoords.end(), |
| [&newTransform](PointerCoords& c) { |
| float orientation = c.getAxisValue(AMOTION_EVENT_AXIS_ORIENTATION); |
| c.setAxisValue(AMOTION_EVENT_AXIS_ORIENTATION, |
| transformAngle(newTransform, orientation)); |
| }); |
| } |
| |
| void MotionEvent::applyTransform(const std::array<float, 9>& matrix) { |
| ui::Transform transform; |
| transform.set(matrix); |
| |
| // Apply the transformation to all samples. |
| std::for_each(mSamplePointerCoords.begin(), mSamplePointerCoords.end(), |
| [&transform](PointerCoords& c) { c.transform(transform); }); |
| } |
| |
| #ifdef __linux__ |
| static status_t readFromParcel(ui::Transform& transform, const Parcel& parcel) { |
| float dsdx, dtdx, tx, dtdy, dsdy, ty; |
| status_t status = parcel.readFloat(&dsdx); |
| status |= parcel.readFloat(&dtdx); |
| status |= parcel.readFloat(&tx); |
| status |= parcel.readFloat(&dtdy); |
| status |= parcel.readFloat(&dsdy); |
| status |= parcel.readFloat(&ty); |
| |
| transform.set({dsdx, dtdx, tx, dtdy, dsdy, ty, 0, 0, 1}); |
| return status; |
| } |
| |
| static status_t writeToParcel(const ui::Transform& transform, Parcel& parcel) { |
| status_t status = parcel.writeFloat(transform.dsdx()); |
| status |= parcel.writeFloat(transform.dtdx()); |
| status |= parcel.writeFloat(transform.tx()); |
| status |= parcel.writeFloat(transform.dtdy()); |
| status |= parcel.writeFloat(transform.dsdy()); |
| status |= parcel.writeFloat(transform.ty()); |
| return status; |
| } |
| |
| status_t MotionEvent::readFromParcel(Parcel* parcel) { |
| size_t pointerCount = parcel->readInt32(); |
| size_t sampleCount = parcel->readInt32(); |
| if (pointerCount == 0 || pointerCount > MAX_POINTERS || |
| sampleCount == 0 || sampleCount > MAX_SAMPLES) { |
| return BAD_VALUE; |
| } |
| |
| mId = parcel->readInt32(); |
| mDeviceId = parcel->readInt32(); |
| mSource = parcel->readUint32(); |
| mDisplayId = parcel->readInt32(); |
| std::vector<uint8_t> hmac; |
| status_t result = parcel->readByteVector(&hmac); |
| if (result != OK || hmac.size() != 32) { |
| return BAD_VALUE; |
| } |
| std::move(hmac.begin(), hmac.begin() + hmac.size(), mHmac.begin()); |
| mAction = parcel->readInt32(); |
| mActionButton = parcel->readInt32(); |
| mFlags = parcel->readInt32(); |
| mEdgeFlags = parcel->readInt32(); |
| mMetaState = parcel->readInt32(); |
| mButtonState = parcel->readInt32(); |
| mClassification = static_cast<MotionClassification>(parcel->readByte()); |
| |
| result = android::readFromParcel(mTransform, *parcel); |
| if (result != OK) { |
| return result; |
| } |
| mXPrecision = parcel->readFloat(); |
| mYPrecision = parcel->readFloat(); |
| mRawXCursorPosition = parcel->readFloat(); |
| mRawYCursorPosition = parcel->readFloat(); |
| mDisplayWidth = parcel->readInt32(); |
| mDisplayHeight = parcel->readInt32(); |
| mDownTime = parcel->readInt64(); |
| |
| mPointerProperties.clear(); |
| mPointerProperties.setCapacity(pointerCount); |
| mSampleEventTimes.clear(); |
| mSampleEventTimes.reserve(sampleCount); |
| mSamplePointerCoords.clear(); |
| mSamplePointerCoords.setCapacity(sampleCount * pointerCount); |
| |
| for (size_t i = 0; i < pointerCount; i++) { |
| mPointerProperties.push(); |
| PointerProperties& properties = mPointerProperties.editTop(); |
| properties.id = parcel->readInt32(); |
| properties.toolType = parcel->readInt32(); |
| } |
| |
| while (sampleCount > 0) { |
| sampleCount--; |
| mSampleEventTimes.push_back(parcel->readInt64()); |
| for (size_t i = 0; i < pointerCount; i++) { |
| mSamplePointerCoords.push(); |
| status_t status = mSamplePointerCoords.editTop().readFromParcel(parcel); |
| if (status) { |
| return status; |
| } |
| } |
| } |
| return OK; |
| } |
| |
| status_t MotionEvent::writeToParcel(Parcel* parcel) const { |
| size_t pointerCount = mPointerProperties.size(); |
| size_t sampleCount = mSampleEventTimes.size(); |
| |
| parcel->writeInt32(pointerCount); |
| parcel->writeInt32(sampleCount); |
| |
| parcel->writeInt32(mId); |
| parcel->writeInt32(mDeviceId); |
| parcel->writeUint32(mSource); |
| parcel->writeInt32(mDisplayId); |
| std::vector<uint8_t> hmac(mHmac.begin(), mHmac.end()); |
| parcel->writeByteVector(hmac); |
| parcel->writeInt32(mAction); |
| parcel->writeInt32(mActionButton); |
| parcel->writeInt32(mFlags); |
| parcel->writeInt32(mEdgeFlags); |
| parcel->writeInt32(mMetaState); |
| parcel->writeInt32(mButtonState); |
| parcel->writeByte(static_cast<int8_t>(mClassification)); |
| |
| status_t result = android::writeToParcel(mTransform, *parcel); |
| if (result != OK) { |
| return result; |
| } |
| parcel->writeFloat(mXPrecision); |
| parcel->writeFloat(mYPrecision); |
| parcel->writeFloat(mRawXCursorPosition); |
| parcel->writeFloat(mRawYCursorPosition); |
| parcel->writeInt32(mDisplayWidth); |
| parcel->writeInt32(mDisplayHeight); |
| parcel->writeInt64(mDownTime); |
| |
| for (size_t i = 0; i < pointerCount; i++) { |
| const PointerProperties& properties = mPointerProperties.itemAt(i); |
| parcel->writeInt32(properties.id); |
| parcel->writeInt32(properties.toolType); |
| } |
| |
| const PointerCoords* pc = mSamplePointerCoords.array(); |
| for (size_t h = 0; h < sampleCount; h++) { |
| parcel->writeInt64(mSampleEventTimes[h]); |
| for (size_t i = 0; i < pointerCount; i++) { |
| status_t status = (pc++)->writeToParcel(parcel); |
| if (status) { |
| return status; |
| } |
| } |
| } |
| return OK; |
| } |
| #endif |
| |
| bool MotionEvent::isTouchEvent(uint32_t source, int32_t action) { |
| if (source & AINPUT_SOURCE_CLASS_POINTER) { |
| // Specifically excludes HOVER_MOVE and SCROLL. |
| switch (action & AMOTION_EVENT_ACTION_MASK) { |
| case AMOTION_EVENT_ACTION_DOWN: |
| case AMOTION_EVENT_ACTION_MOVE: |
| case AMOTION_EVENT_ACTION_UP: |
| case AMOTION_EVENT_ACTION_POINTER_DOWN: |
| case AMOTION_EVENT_ACTION_POINTER_UP: |
| case AMOTION_EVENT_ACTION_CANCEL: |
| case AMOTION_EVENT_ACTION_OUTSIDE: |
| return true; |
| } |
| } |
| return false; |
| } |
| |
| const char* MotionEvent::getLabel(int32_t axis) { |
| return InputEventLookup::getAxisLabel(axis); |
| } |
| |
| int32_t MotionEvent::getAxisFromLabel(const char* label) { |
| return InputEventLookup::getAxisByLabel(label); |
| } |
| |
| std::string MotionEvent::actionToString(int32_t action) { |
| // Convert MotionEvent action to string |
| switch (action & AMOTION_EVENT_ACTION_MASK) { |
| case AMOTION_EVENT_ACTION_DOWN: |
| return "DOWN"; |
| case AMOTION_EVENT_ACTION_UP: |
| return "UP"; |
| case AMOTION_EVENT_ACTION_MOVE: |
| return "MOVE"; |
| case AMOTION_EVENT_ACTION_CANCEL: |
| return "CANCEL"; |
| case AMOTION_EVENT_ACTION_OUTSIDE: |
| return "OUTSIDE"; |
| case AMOTION_EVENT_ACTION_POINTER_DOWN: |
| return "POINTER_DOWN"; |
| case AMOTION_EVENT_ACTION_POINTER_UP: |
| return "POINTER_UP"; |
| case AMOTION_EVENT_ACTION_HOVER_MOVE: |
| return "HOVER_MOVE"; |
| case AMOTION_EVENT_ACTION_SCROLL: |
| return "SCROLL"; |
| case AMOTION_EVENT_ACTION_HOVER_ENTER: |
| return "HOVER_ENTER"; |
| case AMOTION_EVENT_ACTION_HOVER_EXIT: |
| return "HOVER_EXIT"; |
| case AMOTION_EVENT_ACTION_BUTTON_PRESS: |
| return "BUTTON_PRESS"; |
| case AMOTION_EVENT_ACTION_BUTTON_RELEASE: |
| return "BUTTON_RELEASE"; |
| } |
| return android::base::StringPrintf("%" PRId32, action); |
| } |
| |
| // --- FocusEvent --- |
| |
| void FocusEvent::initialize(int32_t id, bool hasFocus, bool inTouchMode) { |
| InputEvent::initialize(id, ReservedInputDeviceId::VIRTUAL_KEYBOARD_ID, AINPUT_SOURCE_UNKNOWN, |
| ADISPLAY_ID_NONE, INVALID_HMAC); |
| mHasFocus = hasFocus; |
| mInTouchMode = inTouchMode; |
| } |
| |
| void FocusEvent::initialize(const FocusEvent& from) { |
| InputEvent::initialize(from); |
| mHasFocus = from.mHasFocus; |
| mInTouchMode = from.mInTouchMode; |
| } |
| |
| // --- CaptureEvent --- |
| |
| void CaptureEvent::initialize(int32_t id, bool pointerCaptureEnabled) { |
| InputEvent::initialize(id, ReservedInputDeviceId::VIRTUAL_KEYBOARD_ID, AINPUT_SOURCE_UNKNOWN, |
| ADISPLAY_ID_NONE, INVALID_HMAC); |
| mPointerCaptureEnabled = pointerCaptureEnabled; |
| } |
| |
| void CaptureEvent::initialize(const CaptureEvent& from) { |
| InputEvent::initialize(from); |
| mPointerCaptureEnabled = from.mPointerCaptureEnabled; |
| } |
| |
| // --- DragEvent --- |
| |
| void DragEvent::initialize(int32_t id, float x, float y, bool isExiting) { |
| InputEvent::initialize(id, ReservedInputDeviceId::VIRTUAL_KEYBOARD_ID, AINPUT_SOURCE_UNKNOWN, |
| ADISPLAY_ID_NONE, INVALID_HMAC); |
| mIsExiting = isExiting; |
| mX = x; |
| mY = y; |
| } |
| |
| void DragEvent::initialize(const DragEvent& from) { |
| InputEvent::initialize(from); |
| mIsExiting = from.mIsExiting; |
| mX = from.mX; |
| mY = from.mY; |
| } |
| |
| // --- PooledInputEventFactory --- |
| |
| PooledInputEventFactory::PooledInputEventFactory(size_t maxPoolSize) : |
| mMaxPoolSize(maxPoolSize) { |
| } |
| |
| PooledInputEventFactory::~PooledInputEventFactory() { |
| } |
| |
| KeyEvent* PooledInputEventFactory::createKeyEvent() { |
| if (mKeyEventPool.empty()) { |
| return new KeyEvent(); |
| } |
| KeyEvent* event = mKeyEventPool.front().release(); |
| mKeyEventPool.pop(); |
| return event; |
| } |
| |
| MotionEvent* PooledInputEventFactory::createMotionEvent() { |
| if (mMotionEventPool.empty()) { |
| return new MotionEvent(); |
| } |
| MotionEvent* event = mMotionEventPool.front().release(); |
| mMotionEventPool.pop(); |
| return event; |
| } |
| |
| FocusEvent* PooledInputEventFactory::createFocusEvent() { |
| if (mFocusEventPool.empty()) { |
| return new FocusEvent(); |
| } |
| FocusEvent* event = mFocusEventPool.front().release(); |
| mFocusEventPool.pop(); |
| return event; |
| } |
| |
| CaptureEvent* PooledInputEventFactory::createCaptureEvent() { |
| if (mCaptureEventPool.empty()) { |
| return new CaptureEvent(); |
| } |
| CaptureEvent* event = mCaptureEventPool.front().release(); |
| mCaptureEventPool.pop(); |
| return event; |
| } |
| |
| DragEvent* PooledInputEventFactory::createDragEvent() { |
| if (mDragEventPool.empty()) { |
| return new DragEvent(); |
| } |
| DragEvent* event = mDragEventPool.front().release(); |
| mDragEventPool.pop(); |
| return event; |
| } |
| |
| void PooledInputEventFactory::recycle(InputEvent* event) { |
| switch (event->getType()) { |
| case AINPUT_EVENT_TYPE_KEY: |
| if (mKeyEventPool.size() < mMaxPoolSize) { |
| mKeyEventPool.push(std::unique_ptr<KeyEvent>(static_cast<KeyEvent*>(event))); |
| return; |
| } |
| break; |
| case AINPUT_EVENT_TYPE_MOTION: |
| if (mMotionEventPool.size() < mMaxPoolSize) { |
| mMotionEventPool.push(std::unique_ptr<MotionEvent>(static_cast<MotionEvent*>(event))); |
| return; |
| } |
| break; |
| case AINPUT_EVENT_TYPE_FOCUS: |
| if (mFocusEventPool.size() < mMaxPoolSize) { |
| mFocusEventPool.push(std::unique_ptr<FocusEvent>(static_cast<FocusEvent*>(event))); |
| return; |
| } |
| break; |
| case AINPUT_EVENT_TYPE_CAPTURE: |
| if (mCaptureEventPool.size() < mMaxPoolSize) { |
| mCaptureEventPool.push( |
| std::unique_ptr<CaptureEvent>(static_cast<CaptureEvent*>(event))); |
| return; |
| } |
| break; |
| case AINPUT_EVENT_TYPE_DRAG: |
| if (mDragEventPool.size() < mMaxPoolSize) { |
| mDragEventPool.push(std::unique_ptr<DragEvent>(static_cast<DragEvent*>(event))); |
| return; |
| } |
| break; |
| } |
| delete event; |
| } |
| |
| } // namespace android |
