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>
60 lines
1.4 KiB
C++
60 lines
1.4 KiB
C++
/*
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* Copyright (c) 2021, the SerenityOS developers.
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* Copyright (c) 2022, Andreas Kling <kling@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/DeprecatedString.h>
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#include <LibJS/Heap/GCPtr.h>
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#include <LibWeb/Bindings/PlatformObject.h>
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#include <LibWeb/CSS/CSSStyleDeclaration.h>
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#include <LibWeb/CSS/Selector.h>
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namespace Web::CSS {
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class CSSRule : public Bindings::PlatformObject {
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WEB_PLATFORM_OBJECT(CSSRule, Bindings::PlatformObject);
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public:
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virtual ~CSSRule() = default;
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// https://drafts.csswg.org/cssom/#dom-cssrule-type
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enum class Type : u16 {
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Style = 1,
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Import = 3,
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Media = 4,
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FontFace = 5,
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Keyframes = 7,
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Keyframe = 8,
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Supports = 12,
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};
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virtual Type type() const = 0;
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DeprecatedString css_text() const;
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void set_css_text(StringView);
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CSSRule* parent_rule() { return m_parent_rule.ptr(); }
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void set_parent_rule(CSSRule*);
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CSSStyleSheet* parent_style_sheet() { return m_parent_style_sheet.ptr(); }
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virtual void set_parent_style_sheet(CSSStyleSheet*);
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template<typename T>
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bool fast_is() const = delete;
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protected:
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explicit CSSRule(JS::Realm&);
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virtual DeprecatedString serialized() const = 0;
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virtual void visit_edges(Cell::Visitor&) override;
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JS::GCPtr<CSSRule> m_parent_rule;
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JS::GCPtr<CSSStyleSheet> m_parent_style_sheet;
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};
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}
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