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.
111 lines
4.2 KiB
C++
111 lines
4.2 KiB
C++
/*
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* Copyright (c) 2018-2020, 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 <LibWeb/Bindings/CSSStyleRulePrototype.h>
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#include <LibWeb/Bindings/Intrinsics.h>
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#include <LibWeb/CSS/CSSStyleRule.h>
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#include <LibWeb/CSS/Parser/Parser.h>
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#include <LibWeb/WebIDL/ExceptionOr.h>
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namespace Web::CSS {
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WebIDL::ExceptionOr<JS::NonnullGCPtr<CSSStyleRule>> CSSStyleRule::create(JS::Realm& realm, Vector<NonnullRefPtr<Web::CSS::Selector>>&& selectors, CSSStyleDeclaration& declaration)
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{
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return MUST_OR_THROW_OOM(realm.heap().allocate<CSSStyleRule>(realm, realm, move(selectors), declaration));
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}
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CSSStyleRule::CSSStyleRule(JS::Realm& realm, Vector<NonnullRefPtr<Selector>>&& selectors, CSSStyleDeclaration& declaration)
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: CSSRule(realm)
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, m_selectors(move(selectors))
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, m_declaration(declaration)
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{
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}
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JS::ThrowCompletionOr<void> CSSStyleRule::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::CSSStyleRulePrototype>(realm, "CSSStyleRule"));
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return {};
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}
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void CSSStyleRule::visit_edges(Cell::Visitor& visitor)
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{
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Base::visit_edges(visitor);
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visitor.visit(&m_declaration);
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}
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// https://www.w3.org/TR/cssom/#dom-cssstylerule-style
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CSSStyleDeclaration* CSSStyleRule::style()
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{
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return &m_declaration;
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}
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// https://www.w3.org/TR/cssom/#serialize-a-css-rule
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DeprecatedString CSSStyleRule::serialized() const
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{
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StringBuilder builder;
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// 1. Let s initially be the result of performing serialize a group of selectors on the rule’s associated selectors,
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// followed by the string " {", i.e., a single SPACE (U+0020), followed by LEFT CURLY BRACKET (U+007B).
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builder.append(serialize_a_group_of_selectors(selectors()).release_value_but_fixme_should_propagate_errors());
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builder.append(" {"sv);
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// 2. Let decls be the result of performing serialize a CSS declaration block on the rule’s associated declarations, or null if there are no such declarations.
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auto decls = declaration().serialized();
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// FIXME: 3. Let rules be the result of performing serialize a CSS rule on each rule in the rule’s cssRules list, or null if there are no such rules.
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DeprecatedString rules;
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// 4. If decls and rules are both null, append " }" to s (i.e. a single SPACE (U+0020) followed by RIGHT CURLY BRACKET (U+007D)) and return s.
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if (decls.is_null() && rules.is_null()) {
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builder.append(" }"sv);
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return builder.to_deprecated_string();
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}
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// 5. If rules is null:
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if (rules.is_null()) {
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// 1. Append a single SPACE (U+0020) to s
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builder.append(' ');
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// 2. Append decls to s
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builder.append(decls);
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// 3. Append " }" to s (i.e. a single SPACE (U+0020) followed by RIGHT CURLY BRACKET (U+007D)).
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builder.append(" }"sv);
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// 4. Return s.
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return builder.to_deprecated_string();
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}
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// FIXME: 6. Otherwise:
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// FIXME: 1. If decls is not null, prepend it to rules.
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// FIXME: 2. For each rule in rules:
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// FIXME: 1. Append a newline followed by two spaces to s.
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// FIXME: 2. Append rule to s.
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// FIXME: 3. Append a newline followed by RIGHT CURLY BRACKET (U+007D) to s.
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// FIXME: 4. Return s.
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TODO();
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}
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// https://www.w3.org/TR/cssom/#dom-cssstylerule-selectortext
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DeprecatedString CSSStyleRule::selector_text() const
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{
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// The selectorText attribute, on getting, must return the result of serializing the associated group of selectors.
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return serialize_a_group_of_selectors(selectors()).release_value_but_fixme_should_propagate_errors().to_deprecated_string();
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}
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// https://www.w3.org/TR/cssom/#dom-cssstylerule-selectortext
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void CSSStyleRule::set_selector_text(StringView selector_text)
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{
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// 1. Run the parse a group of selectors algorithm on the given value.
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auto parsed_selectors = parse_selector(Parser::ParsingContext { realm() }, selector_text);
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// 2. If the algorithm returns a non-null value replace the associated group of selectors with the returned value.
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if (parsed_selectors.has_value())
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m_selectors = parsed_selectors.release_value();
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// 3. Otherwise, if the algorithm returns a null value, do nothing.
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}
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}
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