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https://github.com/LadybirdBrowser/ladybird
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Previously, the LibWeb bindings generator would output multiple per interface files like Prototype/Constructor/Namespace/GlobalMixin depending on the contents of that IDL file. This complicates the build system as it means that it does not know what files will be generated without knowledge of the contents of that IDL file. Instead, for each IDL file only generate a single Bindings/<IDLFile>.h and Bindings/<IDLFile>.cpp.
94 lines
3.3 KiB
C++
94 lines
3.3 KiB
C++
/*
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* Copyright (c) 2023-2024, Matthew Olsson <mattco@serenityos.org>.
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*
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* SPDX-License-Identifier: BSD-2-Clause
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*/
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#include <LibWeb/Animations/Animation.h>
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#include <LibWeb/Animations/AnimationTimeline.h>
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#include <LibWeb/Bindings/AnimationTimeline.h>
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#include <LibWeb/DOM/Document.h>
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namespace Web::Animations {
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GC_DEFINE_ALLOCATOR(AnimationTimeline);
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// https://drafts.csswg.org/web-animations-1/#dom-animationtimeline-currenttime
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Optional<TimeValue> AnimationTimeline::current_time() const
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{
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// Returns the current time for this timeline or null if this timeline is inactive.
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if (is_inactive())
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return {};
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return m_current_time;
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}
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void AnimationTimeline::set_current_time(Optional<TimeValue> value)
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{
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if (value == m_current_time)
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return;
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if (m_is_monotonically_increasing && m_current_time.has_value() && (!value.has_value() || *value < *m_current_time)) {
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dbgln("AnimationTimeline::set_current_time({}): monotonically increasing timeline can only move forward", value);
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return;
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}
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m_current_time = value;
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}
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// https://drafts.csswg.org/web-animations-2/#timeline-duration
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NullableCSSNumberish AnimationTimeline::duration_for_bindings() const
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{
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// The duration of a timeline gives the maximum value a timeline may generate for its current time. This value is
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// used to calculate the intrinsic iteration duration for the target effect of an animation that is associated with
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// the timeline when the effect’s iteration duration is "auto". The value is computed such that the effect fills the
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// available time. For a monotonic timeline, there is no upper bound on current time, and timeline duration is
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// unresolved. For a non-monotonic (e.g. scroll) timeline, the duration has a fixed upper bound. In this case, the
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// timeline is a progress-based timeline, and its timeline duration is 100%.
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return NullableCSSNumberish::from_optional_css_numberish_time(realm(), duration());
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}
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void AnimationTimeline::set_associated_document(GC::Ptr<DOM::Document> document)
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{
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if (document)
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document->associate_with_timeline(*this);
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if (m_associated_document)
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m_associated_document->disassociate_with_timeline(*this);
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m_associated_document = document;
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}
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// https://drafts.csswg.org/web-animations-1/#timeline
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bool AnimationTimeline::is_inactive() const
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{
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// A timeline is considered to be inactive when its time value is unresolved, and active otherwise.
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return !m_current_time.has_value();
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}
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AnimationTimeline::AnimationTimeline(JS::Realm& realm)
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: Bindings::PlatformObject(realm)
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{
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}
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void AnimationTimeline::finalize()
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{
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Base::finalize();
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if (m_associated_document)
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m_associated_document->disassociate_with_timeline(*this);
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}
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void AnimationTimeline::initialize(JS::Realm& realm)
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{
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WEB_SET_PROTOTYPE_FOR_INTERFACE(AnimationTimeline);
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Base::initialize(realm);
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}
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void AnimationTimeline::visit_edges(Cell::Visitor& visitor)
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{
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Base::visit_edges(visitor);
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visitor.visit(m_associated_document);
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// We intentionally don't visit m_associated_animations here to avoid keeping Animations alive solely because they
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// are associated with a timeline. Animations are disassociated from timelines in Animation::finalize() so we don't
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// need to worry about dangling references.
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}
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}
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