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/*
* Copyright (c) 2021, the SerenityOS developers.
* Copyright (c) 2021, Sam Atkins <atkinssj@serenityos.org>
* Copyright (c) 2022, Andreas Kling <kling@serenityos.org>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#include <AK/Debug.h>
#include <AK/URL.h>
#include <LibWeb/Bindings/CSSImportRulePrototype.h>
#include <LibWeb/Bindings/Intrinsics.h>
#include <LibWeb/CSS/CSSImportRule.h>
#include <LibWeb/CSS/Parser/Parser.h>
#include <LibWeb/DOM/Document.h>
#include <LibWeb/HTML/Window.h>
#include <LibWeb/Loader/ResourceLoader.h>
namespace Web::CSS {
WebIDL::ExceptionOr<JS::NonnullGCPtr<CSSImportRule>> CSSImportRule::create(AK::URL url, DOM::Document& document)
{
auto& realm = document.realm();
return MUST_OR_THROW_OOM(realm.heap().allocate<CSSImportRule>(realm, move(url), document));
}
CSSImportRule::CSSImportRule(AK::URL url, DOM::Document& document)
: CSSRule(document.realm())
, m_url(move(url))
, m_document(document)
{
dbgln_if(CSS_LOADER_DEBUG, "CSSImportRule: Loading import URL: {}", m_url);
auto request = LoadRequest::create_for_url_on_page(m_url, document.page());
// NOTE: Mark this rule as delaying the document load event *before* calling set_resource()
// as it may trigger a synchronous resource_did_load() callback.
m_document_load_event_delayer.emplace(document);
set_resource(ResourceLoader::the().load_resource(Resource::Type::Generic, request));
}
JS::ThrowCompletionOr<void> CSSImportRule::initialize(JS::Realm& realm)
{
MUST_OR_THROW_OOM(Base::initialize(realm));
set_prototype(&Bindings::ensure_web_prototype<Bindings::CSSImportRulePrototype>(realm, "CSSImportRule"));
return {};
}
void CSSImportRule::visit_edges(Cell::Visitor& visitor)
{
Base::visit_edges(visitor);
visitor.visit(m_document);
visitor.visit(m_style_sheet);
}
// https://www.w3.org/TR/cssom/#serialize-a-css-rule
DeprecatedString CSSImportRule::serialized() const
{
StringBuilder builder;
// The result of concatenating the following:
// 1. The string "@import" followed by a single SPACE (U+0020).
builder.append("@import "sv);
// 2. The result of performing serialize a URL on the rule’s location.
// FIXME: Look into the correctness of this serialization
builder.append("url("sv);
builder.append(m_url.to_deprecated_string());
builder.append(')');
// FIXME: 3. If the rule’s associated media list is not empty, a single SPACE (U+0020) followed by the result of performing serialize a media query list on the media list.
// 4. The string ";", i.e., SEMICOLON (U+003B).
builder.append(';');
return builder.to_deprecated_string();
}
void CSSImportRule::resource_did_fail()
{
dbgln_if(CSS_LOADER_DEBUG, "CSSImportRule: Resource did fail. URL: {}", resource()->url());
m_document_load_event_delayer.clear();
}
void CSSImportRule::resource_did_load()
{
VERIFY(resource());
if (!m_document)
return;
m_document_load_event_delayer.clear();
if (!resource()->has_encoded_data()) {
dbgln_if(CSS_LOADER_DEBUG, "CSSImportRule: Resource did load, no encoded data. URL: {}", resource()->url());
} else {
dbgln_if(CSS_LOADER_DEBUG, "CSSImportRule: Resource did load, has encoded data. URL: {}", resource()->url());
}
auto* sheet = parse_css_stylesheet(CSS::Parser::ParsingContext(*m_document, resource()->url()), resource()->encoded_data());
if (!sheet) {
dbgln_if(CSS_LOADER_DEBUG, "CSSImportRule: Failed to parse stylesheet: {}", resource()->url());
return;
}
m_style_sheet = sheet;
m_document->style_computer().invalidate_rule_cache();
m_document->invalidate_style();
}
}
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