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LibWeb: Implement AnimationEffect::animation_direction()

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Matthew Olsson 2023-11-04 11:25:29 -07:00 • committed by Andreas Kling
parent 2358f64d00
commit d6fb1c24f6
2 changed files with 18 additions and 0 deletions
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11
Userland/Libraries/LibWeb/Animations/AnimationEffect.cpp
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@ -5,6 +5,7 @@
*/
#include <LibJS/Runtime/VM.h>
#include <LibWeb/Animations/Animation.h>
#include <LibWeb/Animations/AnimationEffect.h>
#include <LibWeb/Bindings/Intrinsics.h>
#include <LibWeb/WebIDL/ExceptionOr.h>
@ -151,6 +152,16 @@ WebIDL::ExceptionOr<void> AnimationEffect::update_timing(OptionalEffectTiming ti
return {};
}
// https://www.w3.org/TR/web-animations-1/#animation-direction
AnimationDirection AnimationEffect::animation_direction() const
{
// "backwards" if the effect is associated with an animation and the associated animation’s playback rate is less
// than zero; in all other cases, the animation direction is "forwards".
if (m_associated_animation && m_associated_animation->playback_rate() < 0.0)
return AnimationDirection::Backwards;
return AnimationDirection::Forwards;
}
AnimationEffect::AnimationEffect(JS::Realm& realm)
: Bindings::PlatformObject(realm)
{