зеркало из https://github.com/mozilla/gecko-dev.git
45 строки
1.7 KiB
C++
45 строки
1.7 KiB
C++
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* vim: set ts=8 sts=2 et sw=2 tw=80: */
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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_DispatcherTrait_h
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#define mozilla_dom_DispatcherTrait_h
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#include "mozilla/AlreadyAddRefed.h"
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#include "mozilla/TaskCategory.h"
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#include "ErrorList.h"
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class nsIRunnable;
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class nsISerialEventTarget;
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namespace mozilla {
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class AbstractThread;
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namespace dom {
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// This trait should be attached to classes like nsIGlobalObject and
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// Document that have a DocGroup attached to them. The methods here
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// should delegate to the DocGroup. We can't use the
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// Dispatcher class directly because it inherits from nsISupports.
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class DispatcherTrait {
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public:
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// This method may or may not be safe off of the main thread. For Document it
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// is safe. For nsIGlobalWindow it is not safe.
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virtual nsresult Dispatch(TaskCategory aCategory,
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already_AddRefed<nsIRunnable>&& aRunnable);
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// This method may or may not be safe off of the main thread. For Document it
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// is safe. For nsIGlobalWindow it is not safe. The nsISerialEventTarget can
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// always be used off the main thread.
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virtual nsISerialEventTarget* EventTargetFor(TaskCategory aCategory) const;
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// Must be called on the main thread. The AbstractThread can always be used
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// off the main thread.
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virtual AbstractThread* AbstractMainThreadFor(TaskCategory aCategory);
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};
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} // namespace dom
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} // namespace mozilla
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#endif // mozilla_dom_DispatcherTrait_h
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