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LibWeb: Make HTML::DecodedImageData to be GC-allocated

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This change fixes GC-leak caused by following mutual dependency:
- SVGDecodedImageData owns JS::Handle for Page.
- SVGDecodedImageData is owned by visited objects.
by making everything inherited from HTML::DecodedImageData and
ListOfAvailableImages to be GC-allocated.

Generally, if visited object has a handle, very likely we leak
everything visited from object in a handle.
This commit is contained in:
Aliaksandr Kalenik 2023-12-12 20:07:19 +01:00 • committed by Andreas Kling
parent 57a04c536c
commit 41a3c19cfe
18 changed files with 100 additions and 54 deletions
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17
Userland/Libraries/LibWeb/SVG/SVGDecodedImageData.h
View file

@ -12,8 +12,11 @@
namespace Web::SVG {
class SVGDecodedImageData final : public HTML::DecodedImageData {
JS_CELL(SVGDecodedImageData, Cell);
JS_DECLARE_ALLOCATOR(SVGDecodedImageData);
public:
static ErrorOr<NonnullRefPtr<SVGDecodedImageData>> create(Page&, AK::URL const&, ByteBuffer encoded_svg);
static ErrorOr<JS::NonnullGCPtr<SVGDecodedImageData>> create(JS::Realm&, JS::NonnullGCPtr<Page>, AK::URL const&, ByteBuffer encoded_svg);
virtual ~SVGDecodedImageData() override;
virtual RefPtr<Gfx::ImmutableBitmap> bitmap(size_t frame_index, Gfx::IntSize) const override;
@ -30,18 +33,20 @@ public:
DOM::Document const& svg_document() const { return *m_document; }
virtual void visit_edges(Cell::Visitor& visitor) override;
private:
class SVGPageClient;
SVGDecodedImageData(JS::NonnullGCPtr<Page>, JS::Handle<SVGPageClient>, JS::Handle<DOM::Document>, JS::Handle<SVG::SVGSVGElement>);
SVGDecodedImageData(JS::NonnullGCPtr<Page>, JS::NonnullGCPtr<SVGPageClient>, JS::NonnullGCPtr<DOM::Document>, JS::NonnullGCPtr<SVG::SVGSVGElement>);
RefPtr<Gfx::Bitmap> render(Gfx::IntSize) const;
mutable RefPtr<Gfx::ImmutableBitmap> m_immutable_bitmap;
JS::Handle<Page> m_page;
JS::Handle<SVGPageClient> m_page_client;
JS::NonnullGCPtr<Page> m_page;
JS::NonnullGCPtr<SVGPageClient> m_page_client;
JS::Handle<DOM::Document> m_document;
JS::Handle<SVG::SVGSVGElement> m_root_element;
JS::NonnullGCPtr<DOM::Document> m_document;
JS::NonnullGCPtr<SVG::SVGSVGElement> m_root_element;
};
}