mirror of
https://github.com/LadybirdBrowser/ladybird
synced 2026-05-12 01:46:46 +02:00
a414136d7c
Report DOM character data, decoded image frames, ImageBitmap pixel buffers, and 2D canvas surfaces through the GC external memory hook. This lets image and text-heavy pages participate in GC threshold calculations through their retained backing storage.
61 lines
1.9 KiB
C++
61 lines
1.9 KiB
C++
/*
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* Copyright (c) 2018-2020, Andreas Kling <andreas@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/Utf16String.h>
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#include <AK/Utf16View.h>
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#include <LibUnicode/Forward.h>
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#include <LibWeb/DOM/ChildNode.h>
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#include <LibWeb/DOM/Node.h>
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#include <LibWeb/DOM/NonDocumentTypeChildNode.h>
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#include <LibWeb/Export.h>
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namespace Web::DOM {
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// https://dom.spec.whatwg.org/#characterdata
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class WEB_API CharacterData
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: public Node
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, public ChildNode<CharacterData>
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, public NonDocumentTypeChildNode<CharacterData> {
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WEB_PLATFORM_OBJECT(CharacterData, Node);
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GC_DECLARE_ALLOCATOR(CharacterData);
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public:
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virtual ~CharacterData() override;
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Utf16String const& data() const { return m_data; }
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void set_data(Utf16String const&);
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unsigned length_in_utf16_code_units() const { return m_data.length_in_code_units(); }
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WebIDL::ExceptionOr<Utf16String> substring_data(size_t offset_in_utf16_code_units, size_t count_in_utf16_code_units) const;
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WebIDL::ExceptionOr<void> append_data(Utf16View const&);
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WebIDL::ExceptionOr<void> insert_data(size_t offset_in_utf16_code_units, Utf16View const&);
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WebIDL::ExceptionOr<void> delete_data(size_t offset_in_utf16_code_units, size_t count_in_utf16_code_units);
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WebIDL::ExceptionOr<void> replace_data(size_t offset_in_utf16_code_units, size_t count_in_utf16_code_units, Utf16View const&);
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Unicode::Segmenter& grapheme_segmenter() const;
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Unicode::Segmenter& line_segmenter() const;
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Unicode::Segmenter& word_segmenter() const;
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protected:
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CharacterData(Document&, NodeType, Utf16String);
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virtual void initialize(JS::Realm&) override;
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private:
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virtual size_t external_memory_size() const override;
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Utf16String m_data;
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mutable OwnPtr<Unicode::Segmenter> m_grapheme_segmenter;
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mutable OwnPtr<Unicode::Segmenter> m_line_segmenter;
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mutable OwnPtr<Unicode::Segmenter> m_word_segmenter;
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};
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}
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