8cd4a889fe
This isn't particularly useful (anymore), especially without any context about _why_ this output suddenly appears in the debug console.
78 lines
2.1 KiB
C++
78 lines
2.1 KiB
C++
/*
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* Copyright (c) 2020, Luke Wilde <lukew@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/CSS/Parser/Parser.h>
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#include <LibWeb/CSS/SelectorEngine.h>
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#include <LibWeb/DOM/ParentNode.h>
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#include <LibWeb/Dump.h>
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namespace Web::DOM {
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ExceptionOr<RefPtr<Element>> ParentNode::query_selector(StringView selector_text)
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{
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auto maybe_selectors = parse_selector(CSS::ParsingContext(*this), selector_text);
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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 selectors = maybe_selectors.value();
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RefPtr<Element> result;
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for_each_in_inclusive_subtree_of_type<Element>([&](auto& element) {
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for (auto& selector : selectors) {
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if (SelectorEngine::matches(selector, element)) {
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result = element;
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return IterationDecision::Break;
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}
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}
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return IterationDecision::Continue;
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});
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return result;
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}
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ExceptionOr<NonnullRefPtrVector<Element>> ParentNode::query_selector_all(StringView selector_text)
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{
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auto maybe_selectors = parse_selector(CSS::ParsingContext(*this), selector_text);
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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 selectors = maybe_selectors.value();
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NonnullRefPtrVector<Element> elements;
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for_each_in_inclusive_subtree_of_type<Element>([&](auto& element) {
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for (auto& selector : selectors) {
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if (SelectorEngine::matches(selector, element)) {
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elements.append(element);
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}
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}
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return IterationDecision::Continue;
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});
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return elements;
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}
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RefPtr<Element> ParentNode::first_element_child()
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{
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return first_child_of_type<Element>();
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}
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RefPtr<Element> ParentNode::last_element_child()
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{
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return last_child_of_type<Element>();
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}
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// https://dom.spec.whatwg.org/#dom-parentnode-childelementcount
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u32 ParentNode::child_element_count() const
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{
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u32 count = 0;
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for (auto* child = first_child(); child; child = child->next_sibling()) {
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if (is<Element>(child))
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++count;
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}
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return count;
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}
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}
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