2692db8699
Note that as of this commit, there aren't any such throwers, and the call site in Heap::allocate will drop exceptions on the floor. This commit only serves to change the declaration of the overrides, make sure they return an empty value, and to propagate OOM errors frm their base initialize invocations.
114 lines
3.6 KiB
C++
114 lines
3.6 KiB
C++
/*
|
||
* 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 {
|
||
|
||
CSSImportRule* CSSImportRule::create(AK::URL url, DOM::Document& document)
|
||
{
|
||
auto& realm = document.realm();
|
||
return 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();
|
||
}
|
||
|
||
}
|