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.
110 lines
4 KiB
C++
110 lines
4 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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namespace Web::CSS {
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CSSStyleRule* CSSStyleRule::create(JS::Realm& realm, NonnullRefPtrVector<Web::CSS::Selector>&& selectors, CSSStyleDeclaration& declaration)
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{
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return realm.heap().allocate<CSSStyleRule>(realm, realm, move(selectors), declaration);
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}
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CSSStyleRule::CSSStyleRule(JS::Realm& realm, NonnullRefPtrVector<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()));
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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());
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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({}, 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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