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Diffstat (limited to 'widget/gonk/libui/Input.cpp')
| -rw-r--r-- | widget/gonk/libui/Input.cpp | 635 |
1 files changed, 0 insertions, 635 deletions
diff --git a/widget/gonk/libui/Input.cpp b/widget/gonk/libui/Input.cpp deleted file mode 100644 index 2208191e6..000000000 --- a/widget/gonk/libui/Input.cpp +++ /dev/null @@ -1,635 +0,0 @@ -/* - * 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 "cutils_log.h" - -#include <math.h> -#include <limits.h> - -#include "Input.h" - -#ifdef HAVE_ANDROID_OS -#include <binder/Parcel.h> - -#include "SkPoint.h" -#include "SkMatrix.h" -#include "SkScalar.h" -#endif - -namespace android { - -// --- InputEvent --- - -void InputEvent::initialize(int32_t deviceId, int32_t source) { - mDeviceId = deviceId; - mSource = source; -} - -void InputEvent::initialize(const InputEvent& from) { - mDeviceId = from.mDeviceId; - mSource = from.mSource; -} - -// --- KeyEvent --- - -bool KeyEvent::hasDefaultAction(int32_t keyCode) { - switch (keyCode) { - case AKEYCODE_HOME: - case AKEYCODE_BACK: - case AKEYCODE_CALL: - case AKEYCODE_ENDCALL: - case AKEYCODE_VOLUME_UP: - case AKEYCODE_VOLUME_DOWN: - case AKEYCODE_VOLUME_MUTE: - case AKEYCODE_POWER: - case AKEYCODE_CAMERA: - case AKEYCODE_HEADSETHOOK: - case AKEYCODE_MENU: - case AKEYCODE_NOTIFICATION: - case AKEYCODE_FOCUS: - case AKEYCODE_SEARCH: - case AKEYCODE_MEDIA_PLAY: - case AKEYCODE_MEDIA_PAUSE: - case AKEYCODE_MEDIA_PLAY_PAUSE: - case AKEYCODE_MEDIA_STOP: - case AKEYCODE_MEDIA_NEXT: - case AKEYCODE_MEDIA_PREVIOUS: - case AKEYCODE_MEDIA_REWIND: - case AKEYCODE_MEDIA_RECORD: - case AKEYCODE_MEDIA_FAST_FORWARD: - case AKEYCODE_MUTE: - case AKEYCODE_BRIGHTNESS_DOWN: - case AKEYCODE_BRIGHTNESS_UP: - return true; - } - - return false; -} - -bool KeyEvent::hasDefaultAction() const { - return hasDefaultAction(getKeyCode()); -} - -bool KeyEvent::isSystemKey(int32_t keyCode) { - switch (keyCode) { - case AKEYCODE_MENU: - case AKEYCODE_SOFT_RIGHT: - case AKEYCODE_HOME: - case AKEYCODE_BACK: - case AKEYCODE_CALL: - case AKEYCODE_ENDCALL: - case AKEYCODE_VOLUME_UP: - case AKEYCODE_VOLUME_DOWN: - case AKEYCODE_VOLUME_MUTE: - case AKEYCODE_MUTE: - case AKEYCODE_POWER: - case AKEYCODE_HEADSETHOOK: - case AKEYCODE_MEDIA_PLAY: - case AKEYCODE_MEDIA_PAUSE: - case AKEYCODE_MEDIA_PLAY_PAUSE: - case AKEYCODE_MEDIA_STOP: - case AKEYCODE_MEDIA_NEXT: - case AKEYCODE_MEDIA_PREVIOUS: - case AKEYCODE_MEDIA_REWIND: - case AKEYCODE_MEDIA_RECORD: - case AKEYCODE_MEDIA_FAST_FORWARD: - case AKEYCODE_CAMERA: - case AKEYCODE_FOCUS: - case AKEYCODE_SEARCH: - case AKEYCODE_BRIGHTNESS_DOWN: - case AKEYCODE_BRIGHTNESS_UP: - return true; - } - - return false; -} - -bool KeyEvent::isSystemKey() const { - return isSystemKey(getKeyCode()); -} - -void KeyEvent::initialize( - int32_t deviceId, - int32_t source, - 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(deviceId, source); - 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; -} - - -// --- PointerCoords --- - -float PointerCoords::getAxisValue(int32_t axis) const { - if (axis < 0 || axis > 63) { - return 0; - } - - uint64_t axisBit = 1LL << axis; - if (!(bits & axisBit)) { - return 0; - } - uint32_t index = __builtin_popcountll(bits & (axisBit - 1LL)); - return values[index]; -} - -status_t PointerCoords::setAxisValue(int32_t axis, float value) { - if (axis < 0 || axis > 63) { - return NAME_NOT_FOUND; - } - - uint64_t axisBit = 1LL << axis; - uint32_t index = __builtin_popcountll(bits & (axisBit - 1LL)); - if (!(bits & axisBit)) { - if (value == 0) { - return OK; // axes with value 0 do not need to be stored - } - uint32_t count = __builtin_popcountll(bits); - if (count >= MAX_AXES) { - tooManyAxes(axis); - return NO_MEMORY; - } - bits |= axisBit; - 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 scaleFactor) { - // No need to scale pressure or size since they are normalized. - // No need to scale orientation since it is meaningless to do so. - scaleAxisValue(*this, AMOTION_EVENT_AXIS_X, scaleFactor); - scaleAxisValue(*this, AMOTION_EVENT_AXIS_Y, scaleFactor); - scaleAxisValue(*this, AMOTION_EVENT_AXIS_TOUCH_MAJOR, scaleFactor); - scaleAxisValue(*this, AMOTION_EVENT_AXIS_TOUCH_MINOR, scaleFactor); - scaleAxisValue(*this, AMOTION_EVENT_AXIS_TOOL_MAJOR, scaleFactor); - scaleAxisValue(*this, AMOTION_EVENT_AXIS_TOOL_MINOR, scaleFactor); -} - -#ifdef HAVE_ANDROID_OS -status_t PointerCoords::readFromParcel(Parcel* parcel) { - bits = parcel->readInt64(); - - uint32_t count = __builtin_popcountll(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 = __builtin_popcountll(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 = __builtin_popcountll(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 = __builtin_popcountll(bits); - for (uint32_t i = 0; i < count; i++) { - values[i] = other.values[i]; - } -} - - -// --- 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 deviceId, - int32_t source, - int32_t action, - int32_t flags, - int32_t edgeFlags, - int32_t metaState, - int32_t buttonState, - float xOffset, - float yOffset, - float xPrecision, - float yPrecision, - nsecs_t downTime, - nsecs_t eventTime, - size_t pointerCount, - const PointerProperties* pointerProperties, - const PointerCoords* pointerCoords) { - InputEvent::initialize(deviceId, source); - mAction = action; - mFlags = flags; - mEdgeFlags = edgeFlags; - mMetaState = metaState; - mButtonState = buttonState; - mXOffset = xOffset; - mYOffset = yOffset; - mXPrecision = xPrecision; - mYPrecision = yPrecision; - 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->mDeviceId, other->mSource); - mAction = other->mAction; - mFlags = other->mFlags; - mEdgeFlags = other->mEdgeFlags; - mMetaState = other->mMetaState; - mButtonState = other->mButtonState; - mXOffset = other->mXOffset; - mYOffset = other->mYOffset; - mXPrecision = other->mXPrecision; - mYPrecision = other->mYPrecision; - mDownTime = other->mDownTime; - mPointerProperties = other->mPointerProperties; - - if (keepHistory) { - mSampleEventTimes = other->mSampleEventTimes; - mSamplePointerCoords = other->mSamplePointerCoords; - } else { - mSampleEventTimes.clear(); - mSampleEventTimes.push(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(eventTime); - mSamplePointerCoords.appendArray(pointerCoords, getPointerCount()); -} - -const PointerCoords* MotionEvent::getRawPointerCoords(size_t pointerIndex) const { - return &mSamplePointerCoords[getHistorySize() * getPointerCount() + pointerIndex]; -} - -float MotionEvent::getRawAxisValue(int32_t axis, size_t pointerIndex) const { - return getRawPointerCoords(pointerIndex)->getAxisValue(axis); -} - -float MotionEvent::getAxisValue(int32_t axis, size_t pointerIndex) const { - float value = getRawPointerCoords(pointerIndex)->getAxisValue(axis); - switch (axis) { - case AMOTION_EVENT_AXIS_X: - return value + mXOffset; - case AMOTION_EVENT_AXIS_Y: - return value + mYOffset; - } - return value; -} - -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 { - return getHistoricalRawPointerCoords(pointerIndex, historicalIndex)->getAxisValue(axis); -} - -float MotionEvent::getHistoricalAxisValue(int32_t axis, size_t pointerIndex, - size_t historicalIndex) const { - float value = getHistoricalRawPointerCoords(pointerIndex, historicalIndex)->getAxisValue(axis); - switch (axis) { - case AMOTION_EVENT_AXIS_X: - return value + mXOffset; - case AMOTION_EVENT_AXIS_Y: - return value + mYOffset; - } - return value; -} - -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) { - mXOffset += xOffset; - mYOffset += yOffset; -} - -void MotionEvent::scale(float scaleFactor) { - mXOffset *= scaleFactor; - mYOffset *= scaleFactor; - mXPrecision *= scaleFactor; - mYPrecision *= scaleFactor; - - size_t numSamples = mSamplePointerCoords.size(); - for (size_t i = 0; i < numSamples; i++) { - mSamplePointerCoords.editItemAt(i).scale(scaleFactor); - } -} - -#ifdef HAVE_ANDROID_OS -static inline float transformAngle(const SkMatrix* matrix, 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. - SkPoint vector; - vector.fX = SkFloatToScalar(sinf(angleRadians)); - vector.fY = SkFloatToScalar(-cosf(angleRadians)); - matrix->mapVectors(& vector, 1); - - // Derive the transformed vector's clockwise angle from vertical. - float result = atan2f(SkScalarToFloat(vector.fX), SkScalarToFloat(-vector.fY)); - if (result < - M_PI_2) { - result += M_PI; - } else if (result > M_PI_2) { - result -= M_PI; - } - return result; -} - -void MotionEvent::transform(const SkMatrix* matrix) { - float oldXOffset = mXOffset; - float oldYOffset = mYOffset; - - // The tricky part of this implementation is to preserve the value of - // rawX and rawY. So we apply the transformation to the first point - // then derive an appropriate new X/Y offset that will preserve rawX and rawY. - SkPoint point; - float rawX = getRawX(0); - float rawY = getRawY(0); - matrix->mapXY(SkFloatToScalar(rawX + oldXOffset), SkFloatToScalar(rawY + oldYOffset), - & point); - float newX = SkScalarToFloat(point.fX); - float newY = SkScalarToFloat(point.fY); - float newXOffset = newX - rawX; - float newYOffset = newY - rawY; - - mXOffset = newXOffset; - mYOffset = newYOffset; - - // Apply the transformation to all samples. - size_t numSamples = mSamplePointerCoords.size(); - for (size_t i = 0; i < numSamples; i++) { - PointerCoords& c = mSamplePointerCoords.editItemAt(i); - float x = c.getAxisValue(AMOTION_EVENT_AXIS_X) + oldXOffset; - float y = c.getAxisValue(AMOTION_EVENT_AXIS_Y) + oldYOffset; - matrix->mapXY(SkFloatToScalar(x), SkFloatToScalar(y), &point); - c.setAxisValue(AMOTION_EVENT_AXIS_X, SkScalarToFloat(point.fX) - newXOffset); - c.setAxisValue(AMOTION_EVENT_AXIS_Y, SkScalarToFloat(point.fY) - newYOffset); - - float orientation = c.getAxisValue(AMOTION_EVENT_AXIS_ORIENTATION); - c.setAxisValue(AMOTION_EVENT_AXIS_ORIENTATION, transformAngle(matrix, orientation)); - } -} - -status_t MotionEvent::readFromParcel(Parcel* parcel) { - size_t pointerCount = parcel->readInt32(); - size_t sampleCount = parcel->readInt32(); - if (pointerCount == 0 || pointerCount > MAX_POINTERS || sampleCount == 0) { - return BAD_VALUE; - } - - mDeviceId = parcel->readInt32(); - mSource = parcel->readInt32(); - mAction = parcel->readInt32(); - mFlags = parcel->readInt32(); - mEdgeFlags = parcel->readInt32(); - mMetaState = parcel->readInt32(); - mButtonState = parcel->readInt32(); - mXOffset = parcel->readFloat(); - mYOffset = parcel->readFloat(); - mXPrecision = parcel->readFloat(); - mYPrecision = parcel->readFloat(); - mDownTime = parcel->readInt64(); - - mPointerProperties.clear(); - mPointerProperties.setCapacity(pointerCount); - mSampleEventTimes.clear(); - mSampleEventTimes.setCapacity(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) { - mSampleEventTimes.push(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(mDeviceId); - parcel->writeInt32(mSource); - parcel->writeInt32(mAction); - parcel->writeInt32(mFlags); - parcel->writeInt32(mEdgeFlags); - parcel->writeInt32(mMetaState); - parcel->writeInt32(mButtonState); - parcel->writeFloat(mXOffset); - parcel->writeFloat(mYOffset); - parcel->writeFloat(mXPrecision); - parcel->writeFloat(mYPrecision); - 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.itemAt(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(int32_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; -} - - -// --- PooledInputEventFactory --- - -PooledInputEventFactory::PooledInputEventFactory(size_t maxPoolSize) : - mMaxPoolSize(maxPoolSize) { -} - -PooledInputEventFactory::~PooledInputEventFactory() { - for (size_t i = 0; i < mKeyEventPool.size(); i++) { - delete mKeyEventPool.itemAt(i); - } - for (size_t i = 0; i < mMotionEventPool.size(); i++) { - delete mMotionEventPool.itemAt(i); - } -} - -KeyEvent* PooledInputEventFactory::createKeyEvent() { - if (!mKeyEventPool.isEmpty()) { - KeyEvent* event = mKeyEventPool.top(); - mKeyEventPool.pop(); - return event; - } - return new KeyEvent(); -} - -MotionEvent* PooledInputEventFactory::createMotionEvent() { - if (!mMotionEventPool.isEmpty()) { - MotionEvent* event = mMotionEventPool.top(); - mMotionEventPool.pop(); - return event; - } - return new MotionEvent(); -} - -void PooledInputEventFactory::recycle(InputEvent* event) { - switch (event->getType()) { - case AINPUT_EVENT_TYPE_KEY: - if (mKeyEventPool.size() < mMaxPoolSize) { - mKeyEventPool.push(static_cast<KeyEvent*>(event)); - return; - } - break; - case AINPUT_EVENT_TYPE_MOTION: - if (mMotionEventPool.size() < mMaxPoolSize) { - mMotionEventPool.push(static_cast<MotionEvent*>(event)); - return; - } - break; - } - delete event; -} - -} // namespace android |