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.
67 lines
1.9 KiB
C++
67 lines
1.9 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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JS::ThrowCompletionOr<void> CSSSupportsRule::initialize(JS::Realm& realm)
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{
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MUST_OR_THROW_OOM(Base::initialize(realm));
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set_prototype(&Bindings::ensure_web_prototype<Bindings::CSSSupportsRulePrototype>(realm, "CSSSupportsRule"));
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return {};
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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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