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