dom/storage/DOMStorageObserver.h
author Honza Bambas <honzab.moz@firemni.cz>
Tue, 05 Jan 2016 07:25:00 -0500
changeset 315658 35794bec70ba6a805f2e8031b53d7c43e9ea9206
parent 285938 91d6e262b662a0b4e47358665e222d3927337af9
child 373868 da7210e8c51ae88365de9db1c4d867e01b8cfd0a
permissions -rw-r--r--
Bug 1165214 - Use OriginAttributes in DOM Storage. r=smaug, r=bholley

/* -*- 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 nsAString& aOriginAttributesPattern,
                           const nsACString& aOriginScope) = 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 nsAString& aOriginAttributesPattern = EmptyString(),
              const nsACString& aOriginScope = EmptyCString());

private:
  virtual ~DOMStorageObserver() {}

  static DOMStorageObserver* sSelf;

  // Weak references
  nsTArray<DOMStorageObserverSink*> mSinks;
  nsCOMPtr<nsITimer> mDBThreadStartDelayTimer;
};

} // namespace dom
} // namespace mozilla

#endif