e90752cc21
This partially implements CSS-Animations-1 (though there are references to CSS-Animations-2). Current limitations: - Multi-selector keyframes are not supported. - Most animation properties are ignored. - Timing functions are not applied. - Non-absolute values are not interpolated unless the target is also of the same non-absolute type (e.g. 10% -> 25%, but not 10% -> 20px). - The JavaScript interface is left as an exercise for the next poor soul looking at this code. With those said, this commit implements: - Interpolation for most common types - Proper keyframe resolution (including the synthetic from-keyframe containing the initial state) - Properly driven animations, and proper style invalidation Co-Authored-By: Andreas Kling <kling@serenityos.org>
56 lines
1.7 KiB
C++
56 lines
1.7 KiB
C++
/*
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* Copyright (c) 2023, Ali Mohammad Pur <mpfard@serenityos.org>
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*
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* SPDX-License-Identifier: BSD-2-Clause
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*/
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#pragma once
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#include <AK/FlyString.h>
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#include <AK/NonnullRefPtr.h>
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#include <LibJS/Heap/GCPtr.h>
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#include <LibWeb/CSS/CSSKeyframeRule.h>
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#include <LibWeb/CSS/CSSRule.h>
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#include <LibWeb/Forward.h>
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#include <LibWeb/WebIDL/ExceptionOr.h>
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namespace Web::CSS {
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// https://drafts.csswg.org/css-animations/#interface-csskeyframesrule
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class CSSKeyframesRule final : public CSSRule {
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WEB_PLATFORM_OBJECT(CSSKeyframesRule, CSSRule);
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public:
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static WebIDL::ExceptionOr<JS::NonnullGCPtr<CSSKeyframesRule>> create(JS::Realm& realm, FlyString name, Vector<JS::NonnullGCPtr<CSSKeyframeRule>> keyframes)
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{
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return MUST_OR_THROW_OOM(realm.heap().allocate<CSSKeyframesRule>(realm, realm, move(name), move(keyframes)));
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}
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virtual ~CSSKeyframesRule() = default;
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virtual Type type() const override { return Type::Keyframes; };
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Vector<JS::NonnullGCPtr<CSSKeyframeRule>> const& keyframes() const { return m_keyframes; }
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FlyString const& name() const { return m_name; }
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private:
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CSSKeyframesRule(JS::Realm& realm, FlyString name, Vector<JS::NonnullGCPtr<CSSKeyframeRule>> keyframes)
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: CSSRule(realm)
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, m_name(move(name))
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, m_keyframes(move(keyframes))
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{
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}
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virtual void visit_edges(Visitor&) override;
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virtual JS::ThrowCompletionOr<void> initialize(JS::Realm&) override;
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virtual DeprecatedString serialized() const override;
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FlyString m_name;
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Vector<JS::NonnullGCPtr<CSSKeyframeRule>> m_keyframes;
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};
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template<>
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inline bool CSSRule::fast_is<CSSKeyframesRule>() const { return type() == CSSRule::Type::Keyframes; }
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}
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