26b0801a78
Make CSS Typed OM to_string() implementations produce Utf16String instead of building UTF-8 strings and converting at the JS binding boundary. Use Utf16StringBuilder for numeric, math, and transform serialization paths that already feed CSS Typed OM stringification. Keep the older CSSOM StyleValue serializer on StringBuilder for now, and convert only where Typed OM source values or parser re-entry still need the existing UTF-8 representation.
49 lines
1.9 KiB
C++
49 lines
1.9 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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// 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&, ReadonlySpan<CSSUnparsedSegment>);
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static WebIDL::ExceptionOr<GC::Ref<CSSUnparsedValue>> construct_impl(JS::Realm&, ReadonlySpan<CSSUnparsedSegment>);
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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<Utf16String> to_string() const override;
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virtual WebIDL::ExceptionOr<NonnullRefPtr<StyleValue const>> create_an_internal_representation(PropertyNameAndID const&, PerformTypeCheck) const override;
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private:
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explicit CSSUnparsedValue(JS::Realm&, ReadonlySpan<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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bool contains_unparsed_value(CSSUnparsedValue const&) const;
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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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