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.
55 lines
1.4 KiB
C++
55 lines
1.4 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/Variant.h>
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#include <LibURL/URL.h>
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#include <LibWeb/CSS/CalculatedOr.h>
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namespace Web::HTML {
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// https://html.spec.whatwg.org/multipage/images.html#image-source
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struct ImageSource {
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struct PixelDensityDescriptorValue {
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double value { 0 };
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};
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struct WidthDescriptorValue {
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CSSPixels value { 0 };
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};
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String url;
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Variant<Empty, PixelDensityDescriptorValue, WidthDescriptorValue> descriptor;
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};
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struct ImageSourceAndPixelDensity {
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ImageSource source;
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double pixel_density { 1.0f };
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};
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// https://html.spec.whatwg.org/multipage/images.html#source-set
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struct SourceSet {
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static SourceSet create(DOM::Element const&, String default_source, String srcset, String sizes);
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[[nodiscard]] bool is_empty() const;
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// https://html.spec.whatwg.org/multipage/images.html#select-an-image-source-from-a-source-set
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[[nodiscard]] ImageSourceAndPixelDensity select_an_image_source();
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// https://html.spec.whatwg.org/multipage/images.html#normalise-the-source-densities
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void normalize_source_densities(DOM::Element const&);
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SourceSet();
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Vector<ImageSource> m_sources;
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CSS::LengthOrCalculated m_source_size;
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};
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SourceSet parse_a_srcset_attribute(StringView);
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[[nodiscard]] CSS::LengthOrCalculated parse_a_sizes_attribute(DOM::Document const&, StringView);
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}
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