f7ff1fd985
This relied on pulling the current realm from the main thread VM, which requires an execution context to be on the VM's stack. This heavily relied on the dummy execution context that is always on the stack, for example, when parsing the UA style sheets where no JavaScript is running.
67 lines
2 KiB
C++
67 lines
2 KiB
C++
/*
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* Copyright (c) 2021-2023, 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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WebIDL::ExceptionOr<JS::NonnullGCPtr<CSSSupportsRule>> CSSSupportsRule::create(JS::Realm& realm, NonnullRefPtr<Supports>&& supports, CSSRuleList& rules)
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{
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return MUST_OR_THROW_OOM(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_string().release_value_but_fixme_should_propagate_errors().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(Parser::ParsingContext { realm() }, 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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