third_party/WebKit/Source/core/animation/PathSVGInterpolation.cpp - Issue 1441853002: Web Animations: Add SVGPathInterpolationType

Unified Diff: third_party/WebKit/Source/core/animation/PathSVGInterpolation.cpp

Issue 1441853002: Web Animations: Add SVGPathInterpolationType (Closed) Base URL: https://chromium.googlesource.com/chromium/src.git@_svgNumberListInterpolationType

Patch Set: Rebased Created 5 years ago

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Index: third_party/WebKit/Source/core/animation/PathSVGInterpolation.cpp

diff --git a/third_party/WebKit/Source/core/animation/PathSVGInterpolation.cpp b/third_party/WebKit/Source/core/animation/PathSVGInterpolation.cpp

deleted file mode 100644

index 33d87a45d2e0d996ec4a2c5e8a1a5d0094cb5f47..0000000000000000000000000000000000000000

--- a/third_party/WebKit/Source/core/animation/PathSVGInterpolation.cpp

+++ /dev/null

@@ -1,446 +0,0 @@

-// Use of this source code is governed by a BSD-style license that can be

-// found in the LICENSE file.

-#include "config.h"

-#include "core/animation/PathSVGInterpolation.h"

-#include "core/svg/SVGPathByteStreamBuilder.h"

-#include "core/svg/SVGPathByteStreamSource.h"

-#include "core/svg/SVGPathElement.h"

-#include "core/svg/SVGPathParser.h"

-namespace blink {

-namespace {

-struct SubPathCoordinates {

- double initialX = 0;

- double initialY = 0;

- double currentX = 0;

- double currentY = 0;

-};

-PassOwnPtr<InterpolableNumber> controlToInterpolableValue(double value, bool isAbsolute, double currentValue)

- if (isAbsolute)

- return InterpolableNumber::create(value);

- return InterpolableNumber::create(currentValue + value);

-double controlFromInterpolableValue(const InterpolableValue* number, bool isAbsolute, double currentValue)

- double value = toInterpolableNumber(number)->value();

- if (isAbsolute)

- return value;

- return value - currentValue;

-PassOwnPtr<InterpolableNumber> specifiedToInterpolableValue(double value, bool isAbsolute, double& currentValue)

- if (isAbsolute)

- currentValue = value;

- else

- currentValue += value;

- return InterpolableNumber::create(currentValue);

-double specifiedFromInterpolableValue(const InterpolableValue* number, bool isAbsolute, double& currentValue)

- double previousValue = currentValue;

- currentValue = toInterpolableNumber(number)->value();

- if (isAbsolute)

- return currentValue;

- return currentValue - previousValue;

-PassOwnPtr<InterpolableValue> pathSegClosePathToInterpolableValue(const PathSegmentData&, SubPathCoordinates& coordinates)

- coordinates.currentX = coordinates.initialX;

- coordinates.currentY = coordinates.initialY;

- // arbitrary

- return InterpolableBool::create(false);

-PathSegmentData pathSegClosePathFromInterpolableValue(const InterpolableValue&, SVGPathSegType segType, SubPathCoordinates& coordinates)

- coordinates.currentX = coordinates.initialX;

- coordinates.currentY = coordinates.initialY;

- PathSegmentData segment;

- segment.command = segType;

- return segment;

-PassOwnPtr<InterpolableValue> pathSegSingleCoordinateToInterpolableValue(const PathSegmentData& segment, SubPathCoordinates& coordinates)

- bool isAbsolute = isAbsolutePathSegType(segment.command);

- OwnPtr<InterpolableList> result = InterpolableList::create(2);

- result->set(0, specifiedToInterpolableValue(segment.x(), isAbsolute, coordinates.currentX));

- result->set(1, specifiedToInterpolableValue(segment.y(), isAbsolute, coordinates.currentY));

- if (toAbsolutePathSegType(segment.command) == PathSegMoveToAbs) {

- // Any upcoming 'closepath' commands bring us back to the location we have just moved to.

- coordinates.initialX = coordinates.currentX;

- coordinates.initialY = coordinates.currentY;

- }

- return result.release();

-PathSegmentData pathSegSingleCoordinateFromInterpolableValue(const InterpolableValue& value, SVGPathSegType segType, SubPathCoordinates& coordinates)

- const InterpolableList& list = toInterpolableList(value);

- bool isAbsolute = isAbsolutePathSegType(segType);

- PathSegmentData segment;

- segment.command = segType;

- segment.targetPoint.setX(specifiedFromInterpolableValue(list.get(0), isAbsolute, coordinates.currentX));

- segment.targetPoint.setY(specifiedFromInterpolableValue(list.get(1), isAbsolute, coordinates.currentY));

- if (toAbsolutePathSegType(segType) == PathSegMoveToAbs) {

- // Any upcoming 'closepath' commands bring us back to the location we have just moved to.

- coordinates.initialX = coordinates.currentX;

- coordinates.initialY = coordinates.currentY;

- }

- return segment;

-PassOwnPtr<InterpolableValue> pathSegCurvetoCubicToInterpolableValue(const PathSegmentData& segment, SubPathCoordinates& coordinates)

- bool isAbsolute = isAbsolutePathSegType(segment.command);

- OwnPtr<InterpolableList> result = InterpolableList::create(6);

- result->set(0, controlToInterpolableValue(segment.x1(), isAbsolute, coordinates.currentX));

- result->set(1, controlToInterpolableValue(segment.y1(), isAbsolute, coordinates.currentY));

- result->set(2, controlToInterpolableValue(segment.x2(), isAbsolute, coordinates.currentX));

- result->set(3, controlToInterpolableValue(segment.y2(), isAbsolute, coordinates.currentY));

- result->set(4, specifiedToInterpolableValue(segment.x(), isAbsolute, coordinates.currentX));

- result->set(5, specifiedToInterpolableValue(segment.y(), isAbsolute, coordinates.currentY));

- return result.release();

-PathSegmentData pathSegCurvetoCubicFromInterpolableValue(const InterpolableValue& value, SVGPathSegType segType, SubPathCoordinates& coordinates)

- const InterpolableList& list = toInterpolableList(value);

- bool isAbsolute = isAbsolutePathSegType(segType);

- PathSegmentData segment;

- segment.command = segType;

- segment.point1.setX(controlFromInterpolableValue(list.get(0), isAbsolute, coordinates.currentX));

- segment.point1.setY(controlFromInterpolableValue(list.get(1), isAbsolute, coordinates.currentY));

- segment.point2.setX(controlFromInterpolableValue(list.get(2), isAbsolute, coordinates.currentX));

- segment.point2.setY(controlFromInterpolableValue(list.get(3), isAbsolute, coordinates.currentY));

- segment.targetPoint.setX(specifiedFromInterpolableValue(list.get(4), isAbsolute, coordinates.currentX));

- segment.targetPoint.setY(specifiedFromInterpolableValue(list.get(5), isAbsolute, coordinates.currentY));

- return segment;

-PassOwnPtr<InterpolableValue> pathSegCurvetoQuadraticToInterpolableValue(const PathSegmentData& segment, SubPathCoordinates& coordinates)

- bool isAbsolute = isAbsolutePathSegType(segment.command);

- OwnPtr<InterpolableList> result = InterpolableList::create(4);

- result->set(0, controlToInterpolableValue(segment.x1(), isAbsolute, coordinates.currentX));

- result->set(1, controlToInterpolableValue(segment.y1(), isAbsolute, coordinates.currentY));

- result->set(2, specifiedToInterpolableValue(segment.x(), isAbsolute, coordinates.currentX));

- result->set(3, specifiedToInterpolableValue(segment.y(), isAbsolute, coordinates.currentY));

- return result.release();

-PathSegmentData pathSegCurvetoQuadraticFromInterpolableValue(const InterpolableValue& value, SVGPathSegType segType, SubPathCoordinates& coordinates)

- const InterpolableList& list = toInterpolableList(value);

- bool isAbsolute = isAbsolutePathSegType(segType);

- PathSegmentData segment;

- segment.command = segType;

- segment.point1.setX(controlFromInterpolableValue(list.get(0), isAbsolute, coordinates.currentX));

- segment.point1.setY(controlFromInterpolableValue(list.get(1), isAbsolute, coordinates.currentY));

- segment.targetPoint.setX(specifiedFromInterpolableValue(list.get(2), isAbsolute, coordinates.currentX));

- segment.targetPoint.setY(specifiedFromInterpolableValue(list.get(3), isAbsolute, coordinates.currentY));

- return segment;

-PassOwnPtr<InterpolableValue> pathSegArcToInterpolableValue(const PathSegmentData& segment, SubPathCoordinates& coordinates)

- bool isAbsolute = isAbsolutePathSegType(segment.command);

- OwnPtr<InterpolableList> result = InterpolableList::create(7);

- result->set(0, specifiedToInterpolableValue(segment.x(), isAbsolute, coordinates.currentX));

- result->set(1, specifiedToInterpolableValue(segment.y(), isAbsolute, coordinates.currentY));

- result->set(2, InterpolableNumber::create(segment.r1()));

- result->set(3, InterpolableNumber::create(segment.r2()));

- result->set(4, InterpolableNumber::create(segment.arcAngle()));

- result->set(5, InterpolableBool::create(segment.largeArcFlag()));

- result->set(6, InterpolableBool::create(segment.sweepFlag()));

- return result.release();

-PathSegmentData pathSegArcFromInterpolableValue(const InterpolableValue& value, SVGPathSegType segType, SubPathCoordinates& coordinates)

- const InterpolableList& list = toInterpolableList(value);

- bool isAbsolute = isAbsolutePathSegType(segType);

- PathSegmentData segment;

- segment.command = segType;

- segment.targetPoint.setX(specifiedFromInterpolableValue(list.get(0), isAbsolute, coordinates.currentX));

- segment.targetPoint.setY(specifiedFromInterpolableValue(list.get(1), isAbsolute, coordinates.currentY));

- segment.arcRadii().setX(toInterpolableNumber(list.get(2))->value());

- segment.arcRadii().setY(toInterpolableNumber(list.get(3))->value());

- segment.setArcAngle(toInterpolableNumber(list.get(4))->value());

- segment.arcLarge = toInterpolableBool(list.get(5))->value();

- segment.arcSweep = toInterpolableBool(list.get(6))->value();

- return segment;

-PassOwnPtr<InterpolableValue> pathSegLinetoHorizontalToInterpolableValue(const PathSegmentData& segment, SubPathCoordinates& coordinates)

- bool isAbsolute = isAbsolutePathSegType(segment.command);

- return specifiedToInterpolableValue(segment.x(), isAbsolute, coordinates.currentX);

-PathSegmentData pathSegLinetoHorizontalFromInterpolableValue(const InterpolableValue& value, SVGPathSegType segType, SubPathCoordinates& coordinates)

- bool isAbsolute = isAbsolutePathSegType(segType);

- PathSegmentData segment;

- segment.command = segType;

- segment.targetPoint.setX(specifiedFromInterpolableValue(&value, isAbsolute, coordinates.currentX));

- return segment;

-PassOwnPtr<InterpolableValue> pathSegLinetoVerticalToInterpolableValue(const PathSegmentData& segment, SubPathCoordinates& coordinates)

- bool isAbsolute = isAbsolutePathSegType(segment.command);

- return specifiedToInterpolableValue(segment.y(), isAbsolute, coordinates.currentY);

-PathSegmentData pathSegLinetoVerticalFromInterpolableValue(const InterpolableValue& value, SVGPathSegType segType, SubPathCoordinates& coordinates)

- bool isAbsolute = isAbsolutePathSegType(segType);

- PathSegmentData segment;

- segment.command = segType;

- segment.targetPoint.setY(specifiedFromInterpolableValue(&value, isAbsolute, coordinates.currentY));

- return segment;

-PassOwnPtr<InterpolableValue> pathSegCurvetoCubicSmoothToInterpolableValue(const PathSegmentData& segment, SubPathCoordinates& coordinates)

- bool isAbsolute = isAbsolutePathSegType(segment.command);

- OwnPtr<InterpolableList> result = InterpolableList::create(4);

- result->set(0, controlToInterpolableValue(segment.x2(), isAbsolute, coordinates.currentX));

- result->set(1, controlToInterpolableValue(segment.y2(), isAbsolute, coordinates.currentY));

- result->set(2, specifiedToInterpolableValue(segment.x(), isAbsolute, coordinates.currentX));

- result->set(3, specifiedToInterpolableValue(segment.y(), isAbsolute, coordinates.currentY));

- return result.release();

-PathSegmentData pathSegCurvetoCubicSmoothFromInterpolableValue(const InterpolableValue& value, SVGPathSegType segType, SubPathCoordinates& coordinates)

- const InterpolableList& list = toInterpolableList(value);

- bool isAbsolute = isAbsolutePathSegType(segType);

- PathSegmentData segment;

- segment.command = segType;

- segment.point2.setX(controlFromInterpolableValue(list.get(0), isAbsolute, coordinates.currentX));

- segment.point2.setY(controlFromInterpolableValue(list.get(1), isAbsolute, coordinates.currentY));

- segment.targetPoint.setX(specifiedFromInterpolableValue(list.get(2), isAbsolute, coordinates.currentX));

- segment.targetPoint.setY(specifiedFromInterpolableValue(list.get(3), isAbsolute, coordinates.currentY));

- return segment;

-PassOwnPtr<InterpolableValue> pathSegToInterpolableValue(const PathSegmentData& segment, SubPathCoordinates& coordinates, SVGPathSegType* ptrSegType)

- if (ptrSegType)

- *ptrSegType = segment.command;

- switch (segment.command) {

- case PathSegClosePath:

- return pathSegClosePathToInterpolableValue(segment, coordinates);

- case PathSegMoveToAbs:

- case PathSegMoveToRel:

- case PathSegLineToAbs:

- case PathSegLineToRel:

- case PathSegCurveToQuadraticSmoothAbs:

- case PathSegCurveToQuadraticSmoothRel:

- return pathSegSingleCoordinateToInterpolableValue(segment, coordinates);

- case PathSegCurveToCubicAbs:

- case PathSegCurveToCubicRel:

- return pathSegCurvetoCubicToInterpolableValue(segment, coordinates);

- case PathSegCurveToQuadraticAbs:

- case PathSegCurveToQuadraticRel:

- return pathSegCurvetoQuadraticToInterpolableValue(segment, coordinates);

- case PathSegArcAbs:

- case PathSegArcRel:

- return pathSegArcToInterpolableValue(segment, coordinates);

- case PathSegLineToHorizontalAbs:

- case PathSegLineToHorizontalRel:

- return pathSegLinetoHorizontalToInterpolableValue(segment, coordinates);

- case PathSegLineToVerticalAbs:

- case PathSegLineToVerticalRel:

- return pathSegLinetoVerticalToInterpolableValue(segment, coordinates);

- case PathSegCurveToCubicSmoothAbs:

- case PathSegCurveToCubicSmoothRel:

- return pathSegCurvetoCubicSmoothToInterpolableValue(segment, coordinates);

- case PathSegUnknown:

- ASSERT_NOT_REACHED();

- }

- ASSERT_NOT_REACHED();

- return nullptr;

-PathSegmentData pathSegFromInterpolableValue(const InterpolableValue& value, SVGPathSegType segType, SubPathCoordinates& coordinates)

- switch (segType) {

- case PathSegClosePath:

- return pathSegClosePathFromInterpolableValue(value, segType, coordinates);

- case PathSegMoveToAbs:

- case PathSegMoveToRel:

- case PathSegLineToAbs:

- case PathSegLineToRel:

- case PathSegCurveToQuadraticSmoothAbs:

- case PathSegCurveToQuadraticSmoothRel:

- return pathSegSingleCoordinateFromInterpolableValue(value, segType, coordinates);

- case PathSegCurveToCubicAbs:

- case PathSegCurveToCubicRel:

- return pathSegCurvetoCubicFromInterpolableValue(value, segType, coordinates);

- case PathSegCurveToQuadraticAbs:

- case PathSegCurveToQuadraticRel:

- return pathSegCurvetoQuadraticFromInterpolableValue(value, segType, coordinates);

- case PathSegArcAbs:

- case PathSegArcRel:

- return pathSegArcFromInterpolableValue(value, segType, coordinates);

- case PathSegLineToHorizontalAbs:

- case PathSegLineToHorizontalRel:

- return pathSegLinetoHorizontalFromInterpolableValue(value, segType, coordinates);

- case PathSegLineToVerticalAbs:

- case PathSegLineToVerticalRel:

- return pathSegLinetoVerticalFromInterpolableValue(value, segType, coordinates);

- case PathSegCurveToCubicSmoothAbs:

- case PathSegCurveToCubicSmoothRel:

- return pathSegCurvetoCubicSmoothFromInterpolableValue(value, segType, coordinates);

- case PathSegUnknown:

- ASSERT_NOT_REACHED();

- }

- ASSERT_NOT_REACHED();

- return PathSegmentData();

-class InterpolatedPathSource : public SVGPathSource {

-public:

- InterpolatedPathSource(const InterpolableList& listValue, const Vector<SVGPathSegType>& pathSegTypes)

- : m_currentIndex(0)

- , m_list(listValue)

- , m_segmentTypes(pathSegTypes)

- {

- ASSERT(m_list.length() == m_segmentTypes.size());

- }

-private:

- bool hasMoreData() const override;

- SVGPathSegType peekSegmentType() override;

- PathSegmentData parseSegment() override;

- SubPathCoordinates m_normalizationState;

- size_t m_currentIndex;

- const InterpolableList& m_list;

- const Vector<SVGPathSegType>& m_segmentTypes;

-};

-bool InterpolatedPathSource::hasMoreData() const

- return m_currentIndex < m_list.length();

-SVGPathSegType InterpolatedPathSource::peekSegmentType()

- ASSERT(hasMoreData());

- return m_segmentTypes.at(m_currentIndex);

-PathSegmentData InterpolatedPathSource::parseSegment()

- PathSegmentData segment = pathSegFromInterpolableValue(*m_list.get(m_currentIndex), m_segmentTypes.at(m_currentIndex), m_normalizationState);

- ++m_currentIndex;

- return segment;

-size_t countPathCommands(const SVGPathByteStream& path)

- size_t count = 0;

- SVGPathByteStreamSource pathSource(path);

- while (pathSource.hasMoreData()) {

- pathSource.parseSegment();

- ++count;

- }

- return count;

-} // namespace

-PassRefPtr<PathSVGInterpolation> PathSVGInterpolation::maybeCreate(SVGPropertyBase* start, SVGPropertyBase* end, PassRefPtrWillBeRawPtr<SVGAnimatedPropertyBase> attribute)

- const SVGPathByteStream& startPath = toSVGPath(start)->pathValue()->byteStream();

- const SVGPathByteStream& endPath = toSVGPath(end)->pathValue()->byteStream();

- if (startPath.size() != endPath.size())

- return nullptr;

- size_t length = countPathCommands(startPath);

- SVGPathByteStreamSource startPathSource(startPath);

- SVGPathByteStreamSource endPathSource(endPath);

- Vector<SVGPathSegType> pathSegTypes(length);

- OwnPtr<InterpolableList> startValue = InterpolableList::create(length);

- OwnPtr<InterpolableList> endValue = InterpolableList::create(length);

- SubPathCoordinates startCoordinates;

- SubPathCoordinates endCoordinates;

- size_t i = 0;

- while (startPathSource.hasMoreData()) {

- if (toAbsolutePathSegType(startPathSource.peekSegmentType()) != toAbsolutePathSegType(endPathSource.peekSegmentType()))

- return nullptr;

- // Like Firefox SMIL, we use the final path seg type.

- const PathSegmentData startSeg = startPathSource.parseSegment();

- startValue->set(i, pathSegToInterpolableValue(startSeg, startCoordinates, nullptr));

- const PathSegmentData endSeg = endPathSource.parseSegment();

- endValue->set(i, pathSegToInterpolableValue(endSeg, endCoordinates, &pathSegTypes.at(i)));

- ++i;

- }

- ASSERT(!endPathSource.hasMoreData());

- ASSERT(i == length);

- return adoptRef(new PathSVGInterpolation(startValue.release(), endValue.release(), attribute, pathSegTypes));

-PassRefPtrWillBeRawPtr<SVGPropertyBase> PathSVGInterpolation::fromInterpolableValue(const InterpolableValue& value, const Vector<SVGPathSegType>& pathSegTypes)

- OwnPtr<SVGPathByteStream> pathByteStream = SVGPathByteStream::create();

- InterpolatedPathSource source(toInterpolableList(value), pathSegTypes);

- SVGPathByteStreamBuilder builder(*pathByteStream);

- SVGPathParser parser(&source, &builder);

- parser.parsePathDataFromSource(UnalteredParsing, false);

- return SVGPath::create(CSSPathValue::create(pathByteStream.release()));

-PassRefPtrWillBeRawPtr<SVGPropertyBase> PathSVGInterpolation::interpolatedValue(SVGElement&) const

- return fromInterpolableValue(*m_cachedValue, m_pathSegTypes);