0805060e5e
CSSStyleSheet now caches the CSSNamespaceRule for the default namespace, which is the only one we currently care about. This saves us from iterating over its list of rules every time we want to know what that default namespace is. The spec dictates that `@namespace` rules are only valid near the start of a stylesheet, so we also take advantage of that to quit searching for namespaces as soon as we see a non-import rule. Also renamed `namespace_filter()` to `default_namespace()` since that's what it actually returns. This makes github.com/serenityos/serenity snappy again. :^)
69 lines
2.2 KiB
C++
69 lines
2.2 KiB
C++
/*
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* Copyright (c) 2019-2021, Andreas Kling <kling@serenityos.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 <AK/Function.h>
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#include <LibWeb/CSS/CSSNamespaceRule.h>
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#include <LibWeb/CSS/CSSRule.h>
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#include <LibWeb/CSS/CSSRuleList.h>
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#include <LibWeb/CSS/CSSStyleRule.h>
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#include <LibWeb/CSS/StyleSheet.h>
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namespace Web::CSS {
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class CSSImportRule;
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class CSSStyleSheet final
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: public StyleSheet
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, public Weakable<CSSStyleSheet> {
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WEB_PLATFORM_OBJECT(CSSStyleSheet, StyleSheet);
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public:
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static WebIDL::ExceptionOr<JS::NonnullGCPtr<CSSStyleSheet>> create(JS::Realm&, CSSRuleList& rules, MediaList& media, Optional<AK::URL> location);
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virtual ~CSSStyleSheet() override = default;
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void set_owner_css_rule(CSSRule* rule) { m_owner_css_rule = rule; }
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virtual DeprecatedString type() const override { return "text/css"; }
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CSSRuleList const& rules() const { return *m_rules; }
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CSSRuleList& rules() { return *m_rules; }
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void set_rules(CSSRuleList& rules) { m_rules = &rules; }
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CSSRuleList* css_rules() { return m_rules; }
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CSSRuleList const* css_rules() const { return m_rules; }
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WebIDL::ExceptionOr<unsigned> insert_rule(StringView rule, unsigned index);
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WebIDL::ExceptionOr<void> remove_rule(unsigned index);
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WebIDL::ExceptionOr<void> delete_rule(unsigned index);
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void for_each_effective_style_rule(Function<void(CSSStyleRule const&)> const& callback) const;
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// Returns whether the match state of any media queries changed after evaluation.
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bool evaluate_media_queries(HTML::Window const&);
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void for_each_effective_keyframes_at_rule(Function<void(CSSKeyframesRule const&)> const& callback) const;
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void set_style_sheet_list(Badge<StyleSheetList>, StyleSheetList*);
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Optional<StringView> default_namespace() const;
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private:
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CSSStyleSheet(JS::Realm&, CSSRuleList&, MediaList&, Optional<AK::URL> location);
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virtual JS::ThrowCompletionOr<void> initialize(JS::Realm&) override;
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virtual void visit_edges(Cell::Visitor&) override;
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void recalculate_namespaces();
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JS::GCPtr<CSSRuleList> m_rules;
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JS::GCPtr<CSSNamespaceRule> m_default_namespace_rule;
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JS::GCPtr<StyleSheetList> m_style_sheet_list;
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JS::GCPtr<CSSRule> m_owner_css_rule;
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};
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}
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