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d3d695e9d2
DOMMatrix.to_string() throws exceptions if any of its values are non-finite. This ends up affecting CSSStyleValue because its subclass CSSTransformValue (which is about to be added) serializes CSSTransformComponents, and one of those is CSSMatrixComponent, which calls DOMMatrix.to_string(). This is all quite unfortunate, and because at the time the spec for DOMMatrix was written, CSS couldn't represent NaN or infinity. That's no longer true, so I'm hoping the spec can be updated and this can be reverted. https://github.com/w3c/fxtf-drafts/issues/611
47 lines
1.7 KiB
C++
47 lines
1.7 KiB
C++
/*
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* Copyright (c) 2025, Sam Atkins <sam@ladybird.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 <LibWeb/CSS/CSSStyleValue.h>
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#include <LibWeb/WebIDL/Types.h>
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namespace Web::CSS {
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using CSSUnparsedSegment = Variant<String, GC::Ref<CSSVariableReferenceValue>>;
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using GCRootCSSUnparsedSegment = Variant<String, GC::Root<CSSVariableReferenceValue>>;
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// https://drafts.css-houdini.org/css-typed-om-1/#cssunparsedvalue
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class CSSUnparsedValue final : public CSSStyleValue {
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WEB_PLATFORM_OBJECT(CSSUnparsedValue, CSSStyleValue);
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GC_DECLARE_ALLOCATOR(CSSUnparsedValue);
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public:
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[[nodiscard]] static GC::Ref<CSSUnparsedValue> create(JS::Realm&, Vector<GCRootCSSUnparsedSegment>);
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static WebIDL::ExceptionOr<GC::Ref<CSSUnparsedValue>> construct_impl(JS::Realm&, Vector<GCRootCSSUnparsedSegment>);
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virtual ~CSSUnparsedValue() override;
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WebIDL::UnsignedLong length() const;
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virtual Optional<JS::Value> item_value(size_t index) const override;
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virtual WebIDL::ExceptionOr<void> set_value_of_existing_indexed_property(u32, JS::Value) override;
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virtual WebIDL::ExceptionOr<void> set_value_of_new_indexed_property(u32, JS::Value) override;
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virtual WebIDL::ExceptionOr<String> to_string() const override;
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private:
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explicit CSSUnparsedValue(JS::Realm&, Vector<CSSUnparsedSegment>);
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virtual void initialize(JS::Realm&) override;
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virtual void visit_edges(Visitor&) override;
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// https://drafts.css-houdini.org/css-typed-om-1/#dom-cssunparsedvalue-tokens-slot
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// They have a [[tokens]] internal slot, which is a list of USVStrings and CSSVariableReferenceValue objects.
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// This list is the object’s values to iterate over.
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Vector<CSSUnparsedSegment> m_tokens;
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};
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}
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