ladybird/Libraries/LibWeb/CSS/CSSAnimation.cpp
Shannon Booth 9b79a686eb LibJS+LibWeb: Use realm.create<T> instead of heap.allocate<T>
The main motivation behind this is to remove JS specifics of the Realm
from the implementation of the Heap.

As a side effect of this change, this is a bit nicer to read than the
previous approach, and in my opinion, also makes it a little more clear
that this method is specific to a JavaScript Realm.
2024-11-13 16:51:44 -05:00

82 lines
3.2 KiB
C++

/*
* Copyright (c) 2024, Matthew Olsson <mattco@serenityos.org>.
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#include <LibWeb/Animations/KeyframeEffect.h>
#include <LibWeb/Bindings/CSSAnimationPrototype.h>
#include <LibWeb/Bindings/Intrinsics.h>
#include <LibWeb/CSS/CSSAnimation.h>
#include <LibWeb/DOM/Element.h>
namespace Web::CSS {
JS_DEFINE_ALLOCATOR(CSSAnimation);
JS::NonnullGCPtr<CSSAnimation> CSSAnimation::create(JS::Realm& realm)
{
return realm.create<CSSAnimation>(realm);
}
// https://www.w3.org/TR/css-animations-2/#animation-composite-order
Optional<int> CSSAnimation::class_specific_composite_order(JS::NonnullGCPtr<Animations::Animation> other_animation) const
{
auto other = JS::NonnullGCPtr { verify_cast<CSSAnimation>(*other_animation) };
// The existance of an owning element determines the animation class, so both animations should have their owning
// element in the same state
VERIFY(!owning_element() == !other->owning_element());
// Within the set of CSS Animations with an owning element, two animations A and B are sorted in composite order
// (first to last) as follows:
if (owning_element()) {
// 1. If the owning element of A and B differs, sort A and B by tree order of their corresponding owning elements.
// With regard to pseudo-elements, the sort order is as follows:
// - element
// - ::marker
// - ::before
// - any other pseudo-elements not mentioned specifically in this list, sorted in ascending order by the Unicode
// codepoints that make up each selector
// - ::after
// - element children
if (owning_element().ptr() != other->owning_element().ptr()) {
// FIXME: Sort by tree order
return {};
}
// 2. Otherwise, sort A and B based on their position in the computed value of the animation-name property of the
// (common) owning element.
// FIXME: Do this when animation-name supports multiple values
return {};
}
// The composite order of CSS Animations without an owning element is based on their position in the global animation list.
return global_animation_list_order() - other->global_animation_list_order();
}
Animations::AnimationClass CSSAnimation::animation_class() const
{
if (owning_element())
return Animations::AnimationClass::CSSAnimationWithOwningElement;
return Animations::AnimationClass::CSSAnimationWithoutOwningElement;
}
CSSAnimation::CSSAnimation(JS::Realm& realm)
: Animations::Animation(realm)
{
// FIXME:
// CSS Animations generated using the markup defined in this specification are not added to the global animation
// list when they are created. Instead, these animations are appended to the global animation list at the first
// moment when they transition out of the idle play state after being disassociated from their owning element. CSS
// Animations that have been disassociated from their owning element but are still idle do not have a defined
// composite order.
}
void CSSAnimation::initialize(JS::Realm& realm)
{
Base::initialize(realm);
WEB_SET_PROTOTYPE_FOR_INTERFACE(CSSAnimation);
}
}