5bb2e6597a
If a page is nice enough to give us some preload hints, we can tell RequestServer to get started on downloading the resources right away, instead of waiting until discovering them later on during parsing.
64 lines
1.8 KiB
C++
64 lines
1.8 KiB
C++
/*
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* Copyright (c) 2018-2021, Andreas Kling <kling@serenityos.org>
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* Copyright (c) 2021, the SerenityOS developers.
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*
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* SPDX-License-Identifier: BSD-2-Clause
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*/
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#include <AK/ByteBuffer.h>
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#include <AK/URL.h>
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#include <LibWeb/CSS/Parser/Parser.h>
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#include <LibWeb/DOM/Document.h>
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#include <LibWeb/HTML/HTMLLinkElement.h>
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#include <LibWeb/Loader/ResourceLoader.h>
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namespace Web::HTML {
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HTMLLinkElement::HTMLLinkElement(DOM::Document& document, QualifiedName qualified_name)
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: HTMLElement(document, move(qualified_name))
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, m_css_loader(*this)
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{
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m_css_loader.on_load = [&] {
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document.update_style();
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};
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}
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HTMLLinkElement::~HTMLLinkElement()
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{
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}
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void HTMLLinkElement::inserted()
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{
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HTMLElement::inserted();
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if (m_relationship & Relationship::Stylesheet && !(m_relationship & Relationship::Alternate)) {
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m_css_loader.load_from_url(document().parse_url(href()));
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if (auto sheet = m_css_loader.style_sheet())
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document().style_sheets().add_sheet(sheet.release_nonnull());
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}
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if (m_relationship & Relationship::Preload) {
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// FIXME: Respect the "as" attribute.
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LoadRequest request;
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request.set_url(attribute(HTML::AttributeNames::href));
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m_preload_resource = ResourceLoader::the().load_resource(Resource::Type::Generic, request);
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}
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}
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void HTMLLinkElement::parse_attribute(const FlyString& name, const String& value)
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{
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if (name == HTML::AttributeNames::rel) {
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m_relationship = 0;
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auto parts = value.split_view(' ');
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for (auto& part : parts) {
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if (part == "stylesheet")
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m_relationship |= Relationship::Stylesheet;
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else if (part == "alternate")
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m_relationship |= Relationship::Alternate;
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else if (part == "preload")
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m_relationship |= Relationship::Preload;
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}
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}
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}
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}
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