Add experimental support for spring based CSS animations
https://bugs.webkit.org/show_bug.cgi?id=158403
Patch by Sam Weinig <[email protected]> on 2016-06-05
Reviewed by Dean Jackson.
Source/WebCore:
Adds experimental support for a new CSS animation timing function that uses
spring to model the time function. To use it you replace your normal timing
function, be it cubic-bezier or steps, with a new function called spring().
For instance, for a transition you would write:
transition-timing-function: spring(1 100 10 0);
The parameters are, in order:
- Mass
- Stiffness
- Damping
- Initial Velocity
Tests: animations/spring-computed-style.html
animations/spring-function.html
animations/spring-parsing.html
- WebCore.xcodeproj/project.pbxproj:
Add new file.
- css/CSSComputedStyleDeclaration.cpp:
(WebCore::createTimingFunctionValue):
Modernize and add support for the spring function.
(WebCore::CSSParserContext::CSSParserContext):
(WebCore::operator==):
(WebCore::CSSParser::CSSParser):
(WebCore::CSSParser::parseTransformOriginShorthand):
(WebCore::CSSParser::isSpringTimingFunctionEnabled):
(WebCore::CSSParser::parseCubicBezierTimingFunctionValue):
(WebCore::CSSParser::parseSpringTimingFunctionValue):
(WebCore::CSSParser::parseAnimationTimingFunction):
- css/CSSParser.h:
- css/CSSParserMode.h:
Add parsing support for the spring() function.
- css/CSSTimingFunctionValue.cpp:
(WebCore::CSSCubicBezierTimingFunctionValue::customCSSText):
(WebCore::CSSCubicBezierTimingFunctionValue::equals):
(WebCore::CSSStepsTimingFunctionValue::customCSSText):
(WebCore::CSSStepsTimingFunctionValue::equals):
(WebCore::CSSSpringTimingFunctionValue::customCSSText):
(WebCore::CSSSpringTimingFunctionValue::equals):
- css/CSSTimingFunctionValue.h:
(WebCore::CSSSpringTimingFunctionValue::create):
(WebCore::CSSSpringTimingFunctionValue::mass):
(WebCore::CSSSpringTimingFunctionValue::stiffness):
(WebCore::CSSSpringTimingFunctionValue::damping):
(WebCore::CSSSpringTimingFunctionValue::initialVelocity):
(WebCore::CSSSpringTimingFunctionValue::CSSSpringTimingFunctionValue):
Modernize and add support for the spring function.
(WebCore::CSSToStyleMap::mapAnimationTimingFunction):
Pipe the spring function into the animation.
(WebCore::CSSValue::equals):
(WebCore::CSSValue::cssText):
(WebCore::CSSValue::destroy):
(WebCore::CSSValue::isSpringTimingFunctionValue):
Add support for the spring function.
Add a setting to control if the spring function is enabled.
- page/animation/AnimationBase.cpp:
(WebCore::solveSpringFunction):
(WebCore::AnimationBase::progress):
Add support for solving the spring function. Since the spring requires time to be absolute,
get the real time by multiplying the ratio t, to the total duration.
- platform/animation/TimingFunction.cpp:
(WebCore::operator<<):
- platform/animation/TimingFunction.h:
(WebCore::TimingFunction::~TimingFunction):
(WebCore::TimingFunction::isSpringTimingFunction):
Add support for the spring timing function.
- platform/graphics/SpringSolver.h: Added.
(WebCore::SpringSolver::SpringSolver):
(WebCore::SpringSolver::solve):
Add a Spring solver that matches the one in CoreAnimation.
- platform/graphics/ca/GraphicsLayerCA.cpp:
(WebCore::GraphicsLayerCA::createAnimationFromKeyframes):
(WebCore::GraphicsLayerCA::appendToUncommittedAnimations):
(WebCore::GraphicsLayerCA::createBasicAnimation):
(WebCore::GraphicsLayerCA::createSpringAnimation):
(WebCore::GraphicsLayerCA::setupAnimation):
- platform/graphics/ca/GraphicsLayerCA.h:
Map animations with spring timing functions to CASpringAnimations.
- platform/graphics/ca/PlatformCAAnimation.cpp:
(WebCore::operator<<):
(WebCore::PlatformCAAnimation::isBasicAnimation):
- platform/graphics/ca/PlatformCAAnimation.h:
(WebCore::PlatformCAAnimation::setActualStartTimeIfNeeded):
(WebCore::PlatformCAAnimation::PlatformCAAnimation):
- platform/graphics/ca/cocoa/PlatformCAAnimationCocoa.mm:
(WebCore::toCAMediaTimingFunction):
(PlatformCAAnimationCocoa::PlatformCAAnimationCocoa):
(PlatformCAAnimationCocoa::setTimingFunction):
(PlatformCAAnimationCocoa::copyTimingFunctionFrom):
(PlatformCAAnimationCocoa::setFromValue):
(PlatformCAAnimationCocoa::copyFromValueFrom):
(PlatformCAAnimationCocoa::setToValue):
(PlatformCAAnimationCocoa::copyToValueFrom):
Add a new type of PlatformCAAnimation, Spring, which is a sub-type of Basic.
Source/WebKit2:
- Shared/WebCoreArgumentCoders.cpp:
(IPC::ArgumentCoder<StepsTimingFunction>::decode):
(IPC::ArgumentCoder<SpringTimingFunction>::encode):
(IPC::ArgumentCoder<SpringTimingFunction>::decode):
(IPC::ArgumentCoder<FloatPoint>::encode):
- Shared/WebCoreArgumentCoders.h:
- Shared/WebPreferencesDefinitions.h:
- WebProcess/WebPage/WebPage.cpp:
(WebKit::WebPage::updatePreferences):
- WebProcess/WebPage/mac/PlatformCAAnimationRemote.mm:
(WebKit::PlatformCAAnimationRemote::Properties::encode):
(WebKit::PlatformCAAnimationRemote::Properties::decode):
(WebKit::addAnimationToLayer):
Pipe through support for the Spring animation.
LayoutTests:
- animations/script-tests/spring-computed-style.js: Added.
- animations/script-tests/spring-parsing.js: Added.
- animations/spring-computed-style-expected.txt: Added.
- animations/spring-computed-style.html: Added.
- animations/spring-function-expected.txt: Added.
- animations/spring-function.html: Added.
- animations/spring-parsing-expected.txt: Added.
- animations/spring-parsing.html: Added.
Add tests for the spring timing function.
