gecko-dev/dom/storage/DOMStorageObserver.h

64 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 nsIDOMStorageObserver_h__
#define nsIDOMStorageObserver_h__
#include "nsIObserver.h"
#include "nsITimer.h"
#include "nsWeakReference.h"
#include "nsTArray.h"
#include "nsString.h"
namespace mozilla {
namespace dom {
class DOMStorageObserver;
// Implementers are DOMStorageManager and DOMStorageDBParent to forward to
// child processes.
class DOMStorageObserverSink
{
public:
virtual ~DOMStorageObserverSink() {}
private:
friend class DOMStorageObserver;
virtual nsresult Observe(const char* aTopic, const nsACString& aScopePrefix) = 0;
};
// Statically (though layout statics) initialized observer receiving and processing
// chrome clearing notifications, such as cookie deletion etc.
class DOMStorageObserver : public nsIObserver
, public nsSupportsWeakReference
{
public:
NS_DECL_ISUPPORTS
NS_DECL_NSIOBSERVER
static nsresult Init();
static nsresult Shutdown();
static DOMStorageObserver* Self() { return sSelf; }
void AddSink(DOMStorageObserverSink* aObs);
void RemoveSink(DOMStorageObserverSink* aObs);
void Notify(const char* aTopic, const nsACString& aData = EmptyCString());
private:
virtual ~DOMStorageObserver() {}
static DOMStorageObserver* sSelf;
// Weak references
nsTArray<DOMStorageObserverSink*> mSinks;
nsCOMPtr<nsITimer> mDBThreadStartDelayTimer;
};
} // namespace dom
} // namespace mozilla
#endif