76 lines
1.5 KiB
C++
76 lines
1.5 KiB
C++
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#ifndef mozilla_dom_AbortSignal_h
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#define mozilla_dom_AbortSignal_h
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#include "mozilla/DOMEventTargetHelper.h"
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namespace mozilla {
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namespace dom {
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class AbortController;
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class AbortSignal;
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class AbortSignal final : public DOMEventTargetHelper
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{
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public:
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// This class must be implemented by objects who want to follow a AbortSignal.
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class Follower
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{
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public:
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virtual void Aborted() = 0;
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protected:
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virtual ~Follower();
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void
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Follow(AbortSignal* aSignal);
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void
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Unfollow();
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RefPtr<AbortSignal> mFollowingSignal;
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};
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NS_DECL_ISUPPORTS_INHERITED
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NS_DECL_CYCLE_COLLECTION_CLASS_INHERITED(AbortSignal, DOMEventTargetHelper)
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AbortSignal(AbortController* aController, bool aAborted);
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explicit AbortSignal(bool aAborted);
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JSObject*
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WrapObject(JSContext* aCx, JS::Handle<JSObject*> aGivenProto) override;
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bool
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Aborted() const;
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void
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Abort();
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IMPL_EVENT_HANDLER(abort);
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void
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AddFollower(Follower* aFollower);
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void
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RemoveFollower(Follower* aFollower);
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private:
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~AbortSignal() = default;
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RefPtr<AbortController> mController;
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// Raw pointers. Follower unregisters itself in the DTOR.
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nsTArray<Follower*> mFollowers;
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bool mAborted;
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};
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} // dom namespace
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} // mozilla namespace
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#endif // mozilla_dom_AbortSignal_h
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