mirror of
https://github.com/LadybirdBrowser/ladybird.git
synced 2025-10-31 13:20:59 +00:00
41a3c19cfe
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.
96 lines
3.4 KiB
C++
96 lines
3.4 KiB
C++
/*
|
|
* Copyright (c) 2023, Andreas Kling <kling@serenityos.org>
|
|
*
|
|
* SPDX-License-Identifier: BSD-2-Clause
|
|
*/
|
|
|
|
#pragma once
|
|
|
|
#include <AK/Error.h>
|
|
#include <AK/OwnPtr.h>
|
|
#include <AK/URL.h>
|
|
#include <LibGfx/Size.h>
|
|
#include <LibJS/Heap/Handle.h>
|
|
#include <LibWeb/Forward.h>
|
|
#include <LibWeb/HTML/SharedImageRequest.h>
|
|
|
|
namespace Web::HTML {
|
|
|
|
// https://html.spec.whatwg.org/multipage/images.html#image-request
|
|
class ImageRequest final : public JS::Cell {
|
|
JS_CELL(ImageRequest, JS::Cell);
|
|
JS_DECLARE_ALLOCATOR(ImageRequest);
|
|
|
|
public:
|
|
[[nodiscard]] static JS::NonnullGCPtr<ImageRequest> create(JS::Realm&, JS::NonnullGCPtr<Page>);
|
|
|
|
~ImageRequest();
|
|
|
|
// https://html.spec.whatwg.org/multipage/images.html#img-req-state
|
|
enum class State {
|
|
Unavailable,
|
|
PartiallyAvailable,
|
|
CompletelyAvailable,
|
|
Broken,
|
|
};
|
|
|
|
bool is_available() const;
|
|
bool is_fetching() const;
|
|
|
|
State state() const;
|
|
void set_state(State);
|
|
|
|
AK::URL const& current_url() const;
|
|
void set_current_url(JS::Realm&, AK::URL);
|
|
|
|
[[nodiscard]] JS::GCPtr<DecodedImageData> image_data() const;
|
|
void set_image_data(JS::GCPtr<DecodedImageData>);
|
|
|
|
[[nodiscard]] float current_pixel_density() const { return m_current_pixel_density; }
|
|
void set_current_pixel_density(float density) { m_current_pixel_density = density; }
|
|
|
|
[[nodiscard]] Optional<Gfx::FloatSize> const& preferred_density_corrected_dimensions() const { return m_preferred_density_corrected_dimensions; }
|
|
void set_preferred_density_corrected_dimensions(Optional<Gfx::FloatSize> dimensions) { m_preferred_density_corrected_dimensions = move(dimensions); }
|
|
|
|
// https://html.spec.whatwg.org/multipage/images.html#prepare-an-image-for-presentation
|
|
void prepare_for_presentation(HTMLImageElement&);
|
|
|
|
void fetch_image(JS::Realm&, JS::NonnullGCPtr<Fetch::Infrastructure::Request>);
|
|
void add_callbacks(Function<void()> on_finish, Function<void()> on_fail);
|
|
|
|
SharedImageRequest const* shared_image_request() const { return m_shared_image_request; }
|
|
|
|
virtual void visit_edges(JS::Cell::Visitor&) override;
|
|
|
|
private:
|
|
explicit ImageRequest(JS::NonnullGCPtr<Page>);
|
|
|
|
JS::NonnullGCPtr<Page> m_page;
|
|
|
|
// https://html.spec.whatwg.org/multipage/images.html#img-req-state
|
|
// An image request's state is initially unavailable.
|
|
State m_state { State::Unavailable };
|
|
|
|
// https://html.spec.whatwg.org/multipage/images.html#img-req-url
|
|
// An image request's current URL is initially the empty string.
|
|
AK::URL m_current_url;
|
|
|
|
// https://html.spec.whatwg.org/multipage/images.html#img-req-data
|
|
JS::GCPtr<DecodedImageData> m_image_data;
|
|
|
|
// https://html.spec.whatwg.org/multipage/images.html#current-pixel-density
|
|
// Each image request has a current pixel density, which must initially be 1.
|
|
float m_current_pixel_density { 1 };
|
|
|
|
// https://html.spec.whatwg.org/multipage/images.html#preferred-density-corrected-dimensions
|
|
// Each image request has preferred density-corrected dimensions,
|
|
// which is either a struct consisting of a width and a height or is null. It must initially be null.
|
|
Optional<Gfx::FloatSize> m_preferred_density_corrected_dimensions;
|
|
|
|
JS::GCPtr<SharedImageRequest> m_shared_image_request;
|
|
};
|
|
|
|
// https://html.spec.whatwg.org/multipage/images.html#abort-the-image-request
|
|
void abort_the_image_request(JS::Realm&, ImageRequest*);
|
|
|
|
}
|