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