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36 lines
1.5 KiB
C
36 lines
1.5 KiB
C
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/*
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* Copyright (c) 2021-2023, Luke Wilde <lukew@serenityos.org>
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* Copyright (c) 2025, Shannon Booth <shannon@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/Vector.h>
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#include <LibGC/Root.h>
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#include <LibWeb/Forward.h>
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namespace Web::HTML {
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// https://html.spec.whatwg.org/multipage/custom-elements.html#custom-element-reactions-stack
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struct CustomElementReactionsStack {
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CustomElementReactionsStack() = default;
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~CustomElementReactionsStack() = default;
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// https://html.spec.whatwg.org/multipage/custom-elements.html#element-queue
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// Each item in the stack is an element queue, which is initially empty as well. Each item in an element queue is an element.
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// (The elements are not necessarily custom yet, since this queue is used for upgrades as well.)
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Vector<Vector<GC::Root<DOM::Element>>> element_queue_stack;
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// https://html.spec.whatwg.org/multipage/custom-elements.html#backup-element-queue
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// Each custom element reactions stack has an associated backup element queue, which an initially-empty element queue.
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Vector<GC::Root<DOM::Element>> backup_element_queue;
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// https://html.spec.whatwg.org/multipage/custom-elements.html#processing-the-backup-element-queue
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// To prevent reentrancy when processing the backup element queue, each custom element reactions stack also has a processing the backup element queue flag, initially unset.
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bool processing_the_backup_element_queue { false };
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};
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}
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