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. :^)
76 lines
2.4 KiB
C++
76 lines
2.4 KiB
C++
/*
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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 <LibJS/Runtime/Realm.h>
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#include <LibWeb/Bindings/CSSMediaRulePrototype.h>
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#include <LibWeb/Bindings/Intrinsics.h>
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#include <LibWeb/CSS/CSSMediaRule.h>
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namespace Web::CSS {
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JS_DEFINE_ALLOCATOR(CSSMediaRule);
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JS::NonnullGCPtr<CSSMediaRule> CSSMediaRule::create(JS::Realm& realm, MediaList& media_queries, CSSRuleList& rules)
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{
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return realm.heap().allocate<CSSMediaRule>(realm, realm, media_queries, rules);
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}
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CSSMediaRule::CSSMediaRule(JS::Realm& realm, MediaList& media, CSSRuleList& rules)
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: CSSConditionRule(realm, rules)
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, m_media(media)
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{
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}
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void CSSMediaRule::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::CSSMediaRulePrototype>(realm, "CSSMediaRule"));
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}
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void CSSMediaRule::visit_edges(Cell::Visitor& visitor)
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{
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Base::visit_edges(visitor);
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visitor.visit(m_media);
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}
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String CSSMediaRule::condition_text() const
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{
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return String::from_deprecated_string(m_media->media_text().to_deprecated_string()).release_value();
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}
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void CSSMediaRule::set_condition_text(String const& text)
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{
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m_media->set_media_text(text);
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}
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// https://www.w3.org/TR/cssom-1/#serialize-a-css-rule
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DeprecatedString CSSMediaRule::serialized() const
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{
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// The result of concatenating the following:
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StringBuilder builder;
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// 1. The string "@media", followed by a single SPACE (U+0020).
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builder.append("@media "sv);
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// 2. The result of performing serialize a media query list on rule’s media query list.
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builder.append(condition_text());
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// 3. A single SPACE (U+0020), followed by the string "{", i.e., LEFT CURLY BRACKET (U+007B), followed by a newline.
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builder.append(" {\n"sv);
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// 4. The result of performing serialize a CSS rule on each rule in the rule’s cssRules list, separated by a newline and indented by two spaces.
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for (size_t i = 0; i < css_rules().length(); i++) {
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auto rule = css_rules().item(i);
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if (i != 0)
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builder.append("\n"sv);
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builder.append(" "sv);
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builder.append(rule->css_text());
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}
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// 5. A newline, followed by the string "}", i.e., RIGHT CURLY BRACKET (U+007D)
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builder.append("\n}"sv);
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return builder.to_deprecated_string();
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}
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}
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