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d0d7e5a782
This avoids the O(n) walk of element attributes, although there is still a huge space for improvement here if we start keeping a lookup cache for elements-by-ID.
52 lines
1.4 KiB
C++
52 lines
1.4 KiB
C++
/*
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* Copyright (c) 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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#pragma once
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#include <AK/FlyString.h>
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#include <AK/Forward.h>
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#include <LibJS/Heap/GCPtr.h>
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#include <LibWeb/Forward.h>
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#include <LibWeb/HTML/AttributeNames.h>
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#include <LibWeb/TreeNode.h>
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namespace Web::DOM {
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template<typename NodeType>
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class NonElementParentNode {
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public:
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JS::GCPtr<Element const> get_element_by_id(FlyString const& id) const
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{
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JS::GCPtr<Element const> found_element;
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static_cast<NodeType const*>(this)->template for_each_in_inclusive_subtree_of_type<Element>([&](auto& element) {
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if (element.id() == id) {
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found_element = &element;
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return IterationDecision::Break;
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}
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return IterationDecision::Continue;
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});
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return found_element;
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}
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JS::GCPtr<Element> get_element_by_id(FlyString const& id)
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{
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JS::GCPtr<Element> found_element;
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static_cast<NodeType*>(this)->template for_each_in_inclusive_subtree_of_type<Element>([&](auto& element) {
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if (element.id() == id) {
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found_element = &element;
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return IterationDecision::Break;
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}
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return IterationDecision::Continue;
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});
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return found_element;
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}
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protected:
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NonElementParentNode() = default;
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};
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}
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