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LibWeb: Add initial support for AbortController and AbortSignal
The DOM specification says that the primary use case for these is to give Promises abort semantics. It is also a prerequisite for Fetch, as it is used to make Fetch abortable. a
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Userland/Libraries/LibWeb/DOM/AbortController.h
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51
Userland/Libraries/LibWeb/DOM/AbortController.h
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/*
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* Copyright (c) 2021, 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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#pragma once
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#include <AK/RefCounted.h>
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#include <AK/Weakable.h>
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#include <LibWeb/Bindings/WindowObject.h>
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#include <LibWeb/Bindings/Wrappable.h>
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#include <LibWeb/DOM/AbortSignal.h>
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#include <LibWeb/DOM/Window.h>
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#include <LibWeb/Forward.h>
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namespace Web::DOM {
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// https://dom.spec.whatwg.org/#abortcontroller
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class AbortController final
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: public RefCounted<AbortController>
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, public Weakable<AbortController>
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, public Bindings::Wrappable {
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public:
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using WrapperType = Bindings::AbortControllerWrapper;
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static NonnullRefPtr<AbortController> create(Document& document)
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{
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return adopt_ref(*new AbortController(document));
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}
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static NonnullRefPtr<AbortController> create_with_global_object(Bindings::WindowObject& window_object)
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{
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return AbortController::create(window_object.impl().document());
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}
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virtual ~AbortController() override;
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// https://dom.spec.whatwg.org/#dom-abortcontroller-signal
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NonnullRefPtr<AbortSignal> signal() const { return m_signal; }
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void abort();
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private:
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AbortController(Document& document);
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// https://dom.spec.whatwg.org/#abortcontroller-signal
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NonnullRefPtr<AbortSignal> m_signal;
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};
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}
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