6ea2a4eff5
Refresh content blocker styles when connected elements gain or change class or id tokens that can affect generic cosmetic selectors. Cache the class and id tokens covered by each document's content blocker stylesheet, then ask the adblock engine whether newly-added tokens can unlock selectors before invalidating user style for the whole page. This keeps dynamic cosmetic hiding correct without refreshing blocker CSS for unrelated class and id mutations. Add text coverage for irrelevant class/id mutations that should preserve author style invalidation without refreshing blocker CSS. Also prove matching tokens still hide elements.
68 lines
2.3 KiB
C++
68 lines
2.3 KiB
C++
/*
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* Copyright (c) 2021, Andreas Kling <andreas@ladybird.org>
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* Copyright (c) 2025, Tim Ledbetter <tim.ledbetter@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 <AK/Error.h>
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#include <AK/Noncopyable.h>
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#include <AK/String.h>
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#include <LibURL/URL.h>
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#include <LibWeb/Export.h>
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#include <LibWeb/Fetch/Infrastructure/HTTP/Requests.h>
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namespace Web {
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class WEB_API ContentBlocker {
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AK_MAKE_NONCOPYABLE(ContentBlocker);
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AK_MAKE_NONMOVABLE(ContentBlocker);
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public:
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enum class ResourceType : u8 {
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Document,
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Font,
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Image,
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Media,
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Object,
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Other,
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Ping,
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Script,
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Stylesheet,
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Subdocument,
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WebSocket,
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XMLHttpRequest,
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};
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static ContentBlocker& the();
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bool has_rules() const { return m_engine != nullptr; }
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bool has_cosmetic_rules() const { return m_has_cosmetic_rules; }
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bool filtering_enabled() const { return m_filtering_enabled; }
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void set_filtering_enabled(bool const enabled) { m_filtering_enabled = enabled; }
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bool is_filtered(URL::URL const&) const;
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bool is_filtered(URL::URL const&, URL::URL const& source_url, ResourceType) const;
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bool is_filtered(URL::URL const&, URL::URL const& source_url, Optional<Fetch::Infrastructure::Request::Destination> const&, Optional<Fetch::Infrastructure::Request::InitiatorType> const&, Fetch::Infrastructure::Request::Mode) const;
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ErrorOr<void> set_patterns(ReadonlySpan<String>);
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ErrorOr<void> set_rules_from_bytes(ReadonlyBytes);
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String cosmetic_style_sheet_for_url(URL::URL const&) const;
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String cosmetic_style_sheet_for_url(URL::URL const&, ReadonlySpan<String> classes, ReadonlySpan<String> ids) const;
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bool has_generic_cosmetic_selectors_for_url(URL::URL const&, ReadonlySpan<String> classes, ReadonlySpan<String> ids) const;
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static ResourceType resource_type_from_fetch_metadata(Optional<Fetch::Infrastructure::Request::Destination> const&, Optional<Fetch::Infrastructure::Request::InitiatorType> const&, Fetch::Infrastructure::Request::Mode);
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static URL::URL source_url_for_matching(URL::URL const&);
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private:
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ContentBlocker();
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~ContentBlocker();
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bool m_filtering_enabled { true };
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bool m_has_cosmetic_rules { false };
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void* m_engine { nullptr };
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};
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}
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