mirror of
https://github.com/RGBCube/serenity
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104 lines
3.6 KiB
C++
104 lines
3.6 KiB
C++
/*
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* Copyright (c) 2018-2020, Andreas Kling <kling@serenityos.org>
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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*
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* 1. Redistributions of source code must retain the above copyright notice, this
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* list of conditions and the following disclaimer.
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*
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* 2. Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
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* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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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 <LibCore/File.h>
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#include <LibWeb/CSS/Parser/CSSParser.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, const FlyString& tag_name)
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: HTMLElement(document, tag_name)
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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_into(Node& node)
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{
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HTMLElement::inserted_into(node);
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if (m_relationship & Relationship::Stylesheet && !(m_relationship & Relationship::Alternate))
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load_stylesheet(document().complete_url(href()));
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}
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void HTMLLinkElement::resource_did_fail()
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{
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}
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void HTMLLinkElement::resource_did_load()
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{
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ASSERT(resource());
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if (!resource()->has_encoded_data())
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return;
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dbg() << "HTMLLinkElement: Resource did load, looks good! " << href();
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auto sheet = parse_css(CSS::ParsingContext(document()), resource()->encoded_data());
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if (!sheet) {
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dbg() << "HTMLLinkElement: Failed to parse stylesheet: " << href();
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return;
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}
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// Transfer the rules from the successfully parsed sheet into the sheet we've already inserted.
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m_style_sheet->rules() = sheet->rules();
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document().update_style();
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}
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void HTMLLinkElement::load_stylesheet(const URL& url)
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{
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// First insert an empty style sheet in the document sheet list.
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// There's probably a nicer way to do this, but this ensures that sheets are in document order.
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m_style_sheet = CSS::StyleSheet::create({});
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document().style_sheets().add_sheet(*m_style_sheet);
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LoadRequest request;
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request.set_url(url);
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set_resource(ResourceLoader::the().load_resource(Resource::Type::Generic, request));
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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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}
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}
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}
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}
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