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ladybird/Libraries/LibWeb/CSS/CSSDescriptors.h
Sam Atkins d8c6b872a3 LibWeb/CSS: Allow descriptors to be shorthands
I was wrong when I added those notes before about this being impossible,
it's *very* possible, for example with the `@page margin` descriptor.
However, until we have a large number of these shorthands and not just a
single example, we can get away with hard-coding support for it.
2025-05-15 09:53:29 +01:00

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1.7 KiB
C++

/*
* Copyright (c) 2025, Sam Atkins <sam@ladybird.org>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#pragma once
#include <LibWeb/CSS/CSSStyleDeclaration.h>
#include <LibWeb/CSS/Descriptor.h>
#include <LibWeb/CSS/DescriptorID.h>
namespace Web::CSS {
// A non-spec base class for descriptor-list classes
class CSSDescriptors : public CSSStyleDeclaration {
WEB_PLATFORM_OBJECT(CSSDescriptors, CSSStyleDeclaration);
public:
virtual ~CSSDescriptors() override;
virtual size_t length() const override;
virtual String item(size_t index) const override;
virtual WebIDL::ExceptionOr<void> set_property(StringView property, StringView value, StringView priority) override;
virtual WebIDL::ExceptionOr<String> remove_property(StringView property) override;
virtual String get_property_value(StringView property) const override;
virtual StringView get_property_priority(StringView property) const override;
Vector<Descriptor> const& descriptors() const { return m_descriptors; }
RefPtr<CSSStyleValue const> descriptor(DescriptorID) const;
RefPtr<CSSStyleValue const> descriptor_or_initial_value(DescriptorID) const;
virtual String serialized() const override;
virtual WebIDL::ExceptionOr<void> set_css_text(StringView) override;
protected:
CSSDescriptors(JS::Realm&, AtRuleID, Vector<Descriptor>);
private:
bool set_a_css_declaration(DescriptorID, NonnullRefPtr<CSSStyleValue const>, Important);
virtual void visit_edges(Visitor&) override;
AtRuleID m_at_rule_id;
Vector<Descriptor> m_descriptors;
};
bool is_shorthand(AtRuleID, DescriptorID);
void for_each_expanded_longhand(AtRuleID, DescriptorID, RefPtr<CSSStyleValue const>, Function<void(DescriptorID, RefPtr<CSSStyleValue const>)>);
}