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LibWeb: Support Element.closest(selectors)
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3 changed files with 28 additions and 0 deletions
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@ -358,6 +358,32 @@ DOM::ExceptionOr<bool> Element::matches(StringView selectors) const
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return false;
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}
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// https://dom.spec.whatwg.org/#dom-element-closest
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DOM::ExceptionOr<DOM::Element const*> Element::closest(StringView selectors) const
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{
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auto maybe_selectors = parse_selector(CSS::ParsingContext(static_cast<ParentNode&>(const_cast<Element&>(*this))), selectors);
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if (!maybe_selectors.has_value())
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return DOM::SyntaxError::create("Failed to parse selector");
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auto matches_selectors = [](CSS::SelectorList const& selector_list, Element const* element) {
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for (auto& selector : selector_list) {
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if (!SelectorEngine::matches(selector, *element))
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return false;
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}
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return true;
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};
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auto const selector_list = maybe_selectors.release_value();
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for (auto* element = this; element; element = element->parent_element()) {
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if (!matches_selectors(selector_list, element))
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continue;
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return element;
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}
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return nullptr;
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}
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ExceptionOr<void> Element::set_inner_html(String const& markup)
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{
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auto result = DOMParsing::inner_html_setter(*this, markup);
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