mirror of
https://github.com/LadybirdBrowser/ladybird
synced 2026-05-11 17:37:33 +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.
77 lines
2.6 KiB
C++
77 lines
2.6 KiB
C++
/*
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* Copyright (c) 2024, Lucas Chollet <lucas.chollet@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/OwnPtr.h>
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#include <LibGfx/Forward.h>
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#include <LibWeb/Bindings/ImageBitmap.h>
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#include <LibWeb/Bindings/PlatformObject.h>
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#include <LibWeb/Bindings/Serializable.h>
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#include <LibWeb/Bindings/Transferable.h>
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#include <LibWeb/Forward.h>
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#include <LibWeb/HTML/Canvas/CanvasDrawImage.h>
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namespace Web::HTML {
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using ImageBitmapSource = FlattenVariant<CanvasImageSource, Variant<GC::Root<FileAPI::Blob>, GC::Root<ImageData>>>;
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// https://html.spec.whatwg.org/multipage/imagebitmap-and-animations.html#imagebitmapoptions
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struct ImageBitmapOptions {
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// FIXME: Implement the rest of the fields
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Optional<WebIDL::UnsignedLong> resize_width;
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Optional<WebIDL::UnsignedLong> resize_height;
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Bindings::ResizeQuality resize_quality = Bindings::ResizeQuality::Low;
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};
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class ImageBitmap final : public Bindings::PlatformObject
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, public Web::Bindings::Serializable
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, public Web::Bindings::Transferable {
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WEB_PLATFORM_OBJECT(ImageBitmap, Bindings::PlatformObject);
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GC_DECLARE_ALLOCATOR(ImageBitmap);
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public:
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static GC::Ref<ImageBitmap> create(JS::Realm&);
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virtual ~ImageBitmap() override;
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// ^Web::Bindings::Serializable
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virtual WebIDL::ExceptionOr<void> serialization_steps(HTML::TransferDataEncoder&, bool for_storage, HTML::SerializationMemory&) override;
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virtual WebIDL::ExceptionOr<void> deserialization_steps(HTML::TransferDataDecoder&, HTML::DeserializationMemory&) override;
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// ^Web::Bindings::Transferable
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virtual WebIDL::ExceptionOr<void> transfer_steps(HTML::TransferDataEncoder&) override;
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virtual WebIDL::ExceptionOr<void> transfer_receiving_steps(HTML::TransferDataDecoder&) override;
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virtual HTML::TransferType primary_interface() const override;
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WebIDL::UnsignedLong width() const;
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WebIDL::UnsignedLong height() const;
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void close();
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// Implementation specific:
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void set_bitmap(RefPtr<Gfx::Bitmap>);
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Gfx::Bitmap* bitmap() const;
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private:
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explicit ImageBitmap(JS::Realm&);
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// FIXME: We don't implement this flag yet:
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// An ImageBitmap object's bitmap has an origin-clean flag, which indicates whether the bitmap is tainted by content
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// from a different origin. The flag is initially set to true and may be changed to false by the steps of
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// createImageBitmap().
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virtual void initialize(JS::Realm&) override;
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virtual void visit_edges(Cell::Visitor&) override;
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virtual size_t external_memory_size() const override;
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WebIDL::UnsignedLong m_width = 0;
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WebIDL::UnsignedLong m_height = 0;
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RefPtr<Gfx::Bitmap> m_bitmap;
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};
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}
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