834202aeb9
This needs to happen before prototype/constructor intitialization can be made lazy. Otherwise, GC could run during the C++ constructor and try to collect the object currently being created.
65 lines
1.8 KiB
C++
65 lines
1.8 KiB
C++
/*
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* Copyright (c) 2021, Sam Atkins <atkinssj@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 <LibWeb/Bindings/CSSSupportsRulePrototype.h>
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#include <LibWeb/Bindings/Intrinsics.h>
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#include <LibWeb/CSS/CSSSupportsRule.h>
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#include <LibWeb/CSS/Parser/Parser.h>
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namespace Web::CSS {
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CSSSupportsRule* CSSSupportsRule::create(JS::Realm& realm, NonnullRefPtr<Supports>&& supports, CSSRuleList& rules)
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{
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return realm.heap().allocate<CSSSupportsRule>(realm, realm, move(supports), rules);
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}
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CSSSupportsRule::CSSSupportsRule(JS::Realm& realm, NonnullRefPtr<Supports>&& supports, CSSRuleList& rules)
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: CSSConditionRule(realm, rules)
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, m_supports(move(supports))
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{
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}
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void CSSSupportsRule::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::CSSSupportsRulePrototype>(realm, "CSSSupportsRule"));
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}
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DeprecatedString CSSSupportsRule::condition_text() const
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{
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return m_supports->to_deprecated_string();
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}
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void CSSSupportsRule::set_condition_text(DeprecatedString text)
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{
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if (auto new_supports = parse_css_supports({}, text))
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m_supports = new_supports.release_nonnull();
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}
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// https://www.w3.org/TR/cssom-1/#serialize-a-css-rule
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DeprecatedString CSSSupportsRule::serialized() const
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{
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// Note: The spec doesn't cover this yet, so I'm roughly following the spec for the @media rule.
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// It should be pretty close!
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StringBuilder builder;
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builder.append("@supports "sv);
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builder.append(condition_text());
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builder.append(" {\n"sv);
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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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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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