e800605ad3
This URL library ends up being a relatively fundamental base library of the system, as LibCore depends on LibURL. This change has two main benefits: * Moving AK back more towards being an agnostic library that can be used between the kernel and userspace. URL has never really fit that description - and is not used in the kernel. * URL _should_ depend on LibUnicode, as it needs punnycode support. However, it's not really possible to do this inside of AK as it can't depend on any external library. This change brings us a little closer to being able to do that, but unfortunately we aren't there quite yet, as the code generators depend on LibCore.
96 lines
3.4 KiB
C++
96 lines
3.4 KiB
C++
/*
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* Copyright (c) 2023, Andreas Kling <kling@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/Error.h>
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#include <AK/OwnPtr.h>
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#include <LibGfx/Size.h>
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#include <LibJS/Heap/Handle.h>
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#include <LibURL/URL.h>
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#include <LibWeb/Forward.h>
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#include <LibWeb/HTML/SharedImageRequest.h>
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namespace Web::HTML {
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// https://html.spec.whatwg.org/multipage/images.html#image-request
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class ImageRequest final : public JS::Cell {
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JS_CELL(ImageRequest, JS::Cell);
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JS_DECLARE_ALLOCATOR(ImageRequest);
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public:
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[[nodiscard]] static JS::NonnullGCPtr<ImageRequest> create(JS::Realm&, JS::NonnullGCPtr<Page>);
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~ImageRequest();
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// https://html.spec.whatwg.org/multipage/images.html#img-req-state
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enum class State {
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Unavailable,
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PartiallyAvailable,
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CompletelyAvailable,
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Broken,
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};
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bool is_available() const;
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bool is_fetching() const;
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State state() const;
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void set_state(State);
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URL::URL const& current_url() const;
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void set_current_url(JS::Realm&, URL::URL);
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[[nodiscard]] JS::GCPtr<DecodedImageData> image_data() const;
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void set_image_data(JS::GCPtr<DecodedImageData>);
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[[nodiscard]] float current_pixel_density() const { return m_current_pixel_density; }
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void set_current_pixel_density(float density) { m_current_pixel_density = density; }
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[[nodiscard]] Optional<Gfx::FloatSize> const& preferred_density_corrected_dimensions() const { return m_preferred_density_corrected_dimensions; }
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void set_preferred_density_corrected_dimensions(Optional<Gfx::FloatSize> dimensions) { m_preferred_density_corrected_dimensions = move(dimensions); }
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// https://html.spec.whatwg.org/multipage/images.html#prepare-an-image-for-presentation
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void prepare_for_presentation(HTMLImageElement&);
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void fetch_image(JS::Realm&, JS::NonnullGCPtr<Fetch::Infrastructure::Request>);
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void add_callbacks(Function<void()> on_finish, Function<void()> on_fail);
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SharedImageRequest const* shared_image_request() const { return m_shared_image_request; }
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virtual void visit_edges(JS::Cell::Visitor&) override;
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private:
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explicit ImageRequest(JS::NonnullGCPtr<Page>);
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JS::NonnullGCPtr<Page> m_page;
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// https://html.spec.whatwg.org/multipage/images.html#img-req-state
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// An image request's state is initially unavailable.
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State m_state { State::Unavailable };
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// https://html.spec.whatwg.org/multipage/images.html#img-req-url
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// An image request's current URL is initially the empty string.
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URL::URL m_current_url;
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// https://html.spec.whatwg.org/multipage/images.html#img-req-data
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JS::GCPtr<DecodedImageData> m_image_data;
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// https://html.spec.whatwg.org/multipage/images.html#current-pixel-density
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// Each image request has a current pixel density, which must initially be 1.
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float m_current_pixel_density { 1 };
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// https://html.spec.whatwg.org/multipage/images.html#preferred-density-corrected-dimensions
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// Each image request has preferred density-corrected dimensions,
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// which is either a struct consisting of a width and a height or is null. It must initially be null.
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Optional<Gfx::FloatSize> m_preferred_density_corrected_dimensions;
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JS::GCPtr<SharedImageRequest> m_shared_image_request;
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};
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// https://html.spec.whatwg.org/multipage/images.html#abort-the-image-request
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void abort_the_image_request(JS::Realm&, ImageRequest*);
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}
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