ladybird/Userland/Libraries/LibWeb/CSS/CSSMediaRule.h
Andreas Kling bfd354492e LibWeb: Put most LibWeb GC objects in type-specific heap blocks
With this change, we now have ~1200 CellAllocators across both LibJS and
LibWeb in a normal WebContent instance.

This gives us a minimum heap size of 4.7 MiB in the scenario where we
only have one cell allocated per type. Of course, in practice there will
be many more of each type, so the effective overhead is quite a bit
smaller than that in practice.

I left a few types unconverted to this mechanism because I got tired of
doing this. :^)
2023-11-19 22:00:48 +01:00

49 lines
1.4 KiB
C++

/*
* Copyright (c) 2021-2022, Sam Atkins <atkinssj@serenityos.org>
* Copyright (c) 2022, Andreas Kling <kling@serenityos.org>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#pragma once
#include <LibWeb/CSS/CSSConditionRule.h>
#include <LibWeb/CSS/MediaList.h>
#include <LibWeb/Forward.h>
namespace Web::CSS {
// https://www.w3.org/TR/css-conditional-3/#the-cssmediarule-interface
class CSSMediaRule final : public CSSConditionRule {
WEB_PLATFORM_OBJECT(CSSMediaRule, CSSConditionRule);
JS_DECLARE_ALLOCATOR(CSSMediaRule);
public:
[[nodiscard]] static JS::NonnullGCPtr<CSSMediaRule> create(JS::Realm&, MediaList& media_queries, CSSRuleList&);
virtual ~CSSMediaRule() = default;
virtual Type type() const override { return Type::Media; }
virtual String condition_text() const override;
virtual void set_condition_text(String const&) override;
virtual bool condition_matches() const override { return m_media->matches(); }
MediaList* media() const { return m_media; }
bool evaluate(HTML::Window const& window) { return m_media->evaluate(window); }
private:
CSSMediaRule(JS::Realm&, MediaList&, CSSRuleList&);
virtual void initialize(JS::Realm&) override;
virtual void visit_edges(Cell::Visitor&) override;
virtual DeprecatedString serialized() const override;
JS::NonnullGCPtr<MediaList> m_media;
};
template<>
inline bool CSSRule::fast_is<CSSMediaRule>() const { return type() == CSSRule::Type::Media; }
}