ladybird/Libraries/LibWeb/CSS/InvalidationSet.h
Aliaksandr Kalenik 34bf833a0a LibWeb: Expand invalidation sets usage to any attribute change
Before this change invalidation sets were only used for "class" and "id"
attribute changes.
2025-01-19 19:54:38 +01:00

82 lines
2.7 KiB
C++

/*
* Copyright (c) 2025, Aliaksandr Kalenik <kalenik.aliaksandr@gmail.com>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#pragma once
#include <AK/FlyString.h>
#include <AK/Format.h>
#include <AK/Forward.h>
#include <AK/HashTable.h>
#include <AK/Traits.h>
#include <LibWeb/CSS/PseudoClass.h>
namespace Web::CSS {
class InvalidationSet {
public:
struct Property {
enum class Type : u8 {
InvalidateSelf,
InvalidateWholeSubtree,
Class,
Id,
TagName,
Attribute,
PseudoClass,
};
Type type;
Variant<FlyString, PseudoClass, Empty> value { Empty {} };
FlyString const& name() const { return value.get<FlyString>(); }
bool operator==(Property const& other) const = default;
};
void include_all_from(InvalidationSet const& other);
bool needs_invalidate_self() const { return m_needs_invalidate_self; }
void set_needs_invalidate_self() { m_needs_invalidate_self = true; }
bool needs_invalidate_whole_subtree() const { return m_needs_invalidate_whole_subtree; }
void set_needs_invalidate_whole_subtree() { m_needs_invalidate_whole_subtree = true; }
void set_needs_invalidate_class(FlyString const& name) { m_properties.set({ Property::Type::Class, name }); }
void set_needs_invalidate_id(FlyString const& name) { m_properties.set({ Property::Type::Id, name }); }
void set_needs_invalidate_tag_name(FlyString const& name) { m_properties.set({ Property::Type::TagName, name }); }
void set_needs_invalidate_attribute(FlyString const& name) { m_properties.set({ Property::Type::Attribute, name }); }
void set_needs_invalidate_pseudo_class(PseudoClass pseudo_class) { m_properties.set({ Property::Type::PseudoClass, pseudo_class }); }
bool is_empty() const;
void for_each_property(Function<void(Property const&)> const& callback) const;
private:
bool m_needs_invalidate_self { false };
bool m_needs_invalidate_whole_subtree { false };
HashTable<Property> m_properties;
};
}
namespace AK {
template<>
struct Traits<Web::CSS::InvalidationSet::Property> : DefaultTraits<String> {
static unsigned hash(Web::CSS::InvalidationSet::Property const&);
static bool equals(Web::CSS::InvalidationSet::Property const& a, Web::CSS::InvalidationSet::Property const& b) { return a == b; }
};
template<>
struct Formatter<Web::CSS::InvalidationSet::Property> : Formatter<StringView> {
ErrorOr<void> format(FormatBuilder&, Web::CSS::InvalidationSet::Property const&);
};
template<>
struct Formatter<Web::CSS::InvalidationSet> : Formatter<StringView> {
ErrorOr<void> format(FormatBuilder&, Web::CSS::InvalidationSet const&);
};
}