ladybird/Userland/Libraries/LibWeb/HTML/HTMLLinkElement.cpp
2021-09-28 22:32:31 +02:00

64 lines
1.9 KiB
C++

/*
* Copyright (c) 2018-2021, Andreas Kling <kling@serenityos.org>
* Copyright (c) 2021, the SerenityOS developers.
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#include <AK/ByteBuffer.h>
#include <AK/URL.h>
#include <LibWeb/CSS/Parser/Parser.h>
#include <LibWeb/DOM/Document.h>
#include <LibWeb/HTML/HTMLLinkElement.h>
#include <LibWeb/Loader/ResourceLoader.h>
namespace Web::HTML {
HTMLLinkElement::HTMLLinkElement(DOM::Document& document, QualifiedName qualified_name)
: HTMLElement(document, move(qualified_name))
, m_css_loader(*this)
{
m_css_loader.on_load = [&] {
document.update_style();
};
}
HTMLLinkElement::~HTMLLinkElement()
{
}
void HTMLLinkElement::inserted()
{
HTMLElement::inserted();
if (m_relationship & Relationship::Stylesheet && !(m_relationship & Relationship::Alternate)) {
m_css_loader.load_from_url(document().parse_url(href()));
if (auto sheet = m_css_loader.style_sheet())
document().style_sheets().add_sheet(sheet.release_nonnull());
}
if (m_relationship & Relationship::Preload) {
// FIXME: Respect the "as" attribute.
LoadRequest request;
request.set_url(document().parse_url(attribute(HTML::AttributeNames::href)));
m_preload_resource = ResourceLoader::the().load_resource(Resource::Type::Generic, request);
}
}
void HTMLLinkElement::parse_attribute(const FlyString& name, const String& value)
{
if (name == HTML::AttributeNames::rel) {
m_relationship = 0;
auto parts = value.split_view(' ');
for (auto& part : parts) {
if (part == "stylesheet")
m_relationship |= Relationship::Stylesheet;
else if (part == "alternate")
m_relationship |= Relationship::Alternate;
else if (part == "preload")
m_relationship |= Relationship::Preload;
}
}
}
}