bfd354492e
With this change, we now have ~1200 CellAllocators across both LibJS and LibWeb in a normal WebContent instance. This gives us a minimum heap size of 4.7 MiB in the scenario where we only have one cell allocated per type. Of course, in practice there will be many more of each type, so the effective overhead is quite a bit smaller than that in practice. I left a few types unconverted to this mechanism because I got tired of doing this. :^)
116 lines
3.7 KiB
C++
116 lines
3.7 KiB
C++
/*
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* Copyright (c) 2021, the SerenityOS developers.
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* Copyright (c) 2021, Sam Atkins <atkinssj@serenityos.org>
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* Copyright (c) 2022, Andreas Kling <kling@serenityos.org>
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*
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* SPDX-License-Identifier: BSD-2-Clause
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*/
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#include <AK/Debug.h>
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#include <AK/URL.h>
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#include <LibWeb/Bindings/CSSImportRulePrototype.h>
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#include <LibWeb/Bindings/Intrinsics.h>
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#include <LibWeb/CSS/CSSImportRule.h>
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#include <LibWeb/CSS/Parser/Parser.h>
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#include <LibWeb/CSS/StyleComputer.h>
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#include <LibWeb/DOM/Document.h>
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#include <LibWeb/HTML/Window.h>
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#include <LibWeb/Loader/ResourceLoader.h>
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namespace Web::CSS {
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JS_DEFINE_ALLOCATOR(CSSImportRule);
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JS::NonnullGCPtr<CSSImportRule> CSSImportRule::create(AK::URL url, DOM::Document& document)
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{
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auto& realm = document.realm();
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return realm.heap().allocate<CSSImportRule>(realm, move(url), document);
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}
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CSSImportRule::CSSImportRule(AK::URL url, DOM::Document& document)
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: CSSRule(document.realm())
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, m_url(move(url))
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, m_document(document)
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{
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dbgln_if(CSS_LOADER_DEBUG, "CSSImportRule: Loading import URL: {}", m_url);
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auto request = LoadRequest::create_for_url_on_page(m_url, document.page());
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// NOTE: Mark this rule as delaying the document load event *before* calling set_resource()
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// as it may trigger a synchronous resource_did_load() callback.
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m_document_load_event_delayer.emplace(document);
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set_resource(ResourceLoader::the().load_resource(Resource::Type::Generic, request));
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}
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void CSSImportRule::initialize(JS::Realm& realm)
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{
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Base::initialize(realm);
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set_prototype(&Bindings::ensure_web_prototype<Bindings::CSSImportRulePrototype>(realm, "CSSImportRule"));
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}
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void CSSImportRule::visit_edges(Cell::Visitor& visitor)
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{
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Base::visit_edges(visitor);
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visitor.visit(m_document);
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visitor.visit(m_style_sheet);
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}
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// https://www.w3.org/TR/cssom/#serialize-a-css-rule
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DeprecatedString CSSImportRule::serialized() const
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{
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StringBuilder builder;
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// The result of concatenating the following:
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// 1. The string "@import" followed by a single SPACE (U+0020).
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builder.append("@import "sv);
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// 2. The result of performing serialize a URL on the rule’s location.
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// FIXME: Look into the correctness of this serialization
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builder.append("url("sv);
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builder.append(m_url.to_deprecated_string());
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builder.append(')');
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// 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.
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// 4. The string ";", i.e., SEMICOLON (U+003B).
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builder.append(';');
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return builder.to_deprecated_string();
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}
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void CSSImportRule::resource_did_fail()
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{
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dbgln_if(CSS_LOADER_DEBUG, "CSSImportRule: Resource did fail. URL: {}", resource()->url());
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m_document_load_event_delayer.clear();
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}
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void CSSImportRule::resource_did_load()
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{
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VERIFY(resource());
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if (!m_document)
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return;
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m_document_load_event_delayer.clear();
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if (!resource()->has_encoded_data()) {
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dbgln_if(CSS_LOADER_DEBUG, "CSSImportRule: Resource did load, no encoded data. URL: {}", resource()->url());
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} else {
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dbgln_if(CSS_LOADER_DEBUG, "CSSImportRule: Resource did load, has encoded data. URL: {}", resource()->url());
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}
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auto* sheet = parse_css_stylesheet(CSS::Parser::ParsingContext(*m_document, resource()->url()), resource()->encoded_data());
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if (!sheet) {
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dbgln_if(CSS_LOADER_DEBUG, "CSSImportRule: Failed to parse stylesheet: {}", resource()->url());
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return;
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}
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m_style_sheet = sheet;
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m_document->style_computer().invalidate_rule_cache();
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m_document->style_computer().load_fonts_from_sheet(*m_style_sheet);
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m_document->invalidate_style();
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}
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}
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