michael@0: /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
michael@0: /* This Source Code Form is subject to the terms of the Mozilla Public
michael@0:  * License, v. 2.0. If a copy of the MPL was not distributed with this
michael@0:  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
michael@0: 
michael@0: #ifndef nsIDOMStorageObserver_h__
michael@0: #define nsIDOMStorageObserver_h__
michael@0: 
michael@0: #include "nsIObserver.h"
michael@0: #include "nsITimer.h"
michael@0: #include "nsWeakReference.h"
michael@0: #include "nsTArray.h"
michael@0: #include "nsString.h"
michael@0: 
michael@0: namespace mozilla {
michael@0: namespace dom {
michael@0: 
michael@0: class DOMStorageObserver;
michael@0: 
michael@0: // Implementers are DOMStorageManager and DOMStorageDBParent to forward to
michael@0: // child processes.
michael@0: class DOMStorageObserverSink
michael@0: {
michael@0: public:
michael@0:   virtual ~DOMStorageObserverSink() {}
michael@0: 
michael@0: private:
michael@0:   friend class DOMStorageObserver;
michael@0:   virtual nsresult Observe(const char* aTopic, const nsACString& aScopePrefix) = 0;
michael@0: };
michael@0: 
michael@0: // Statically (though layout statics) initialized observer receiving and processing
michael@0: // chrome clearing notifications, such as cookie deletion etc.
michael@0: class DOMStorageObserver : public nsIObserver
michael@0:                          , public nsSupportsWeakReference
michael@0: {
michael@0: public:
michael@0:   NS_DECL_ISUPPORTS
michael@0:   NS_DECL_NSIOBSERVER
michael@0: 
michael@0:   virtual ~DOMStorageObserver() {}
michael@0: 
michael@0:   static nsresult Init();
michael@0:   static nsresult Shutdown();
michael@0:   static DOMStorageObserver* Self() { return sSelf; }
michael@0: 
michael@0:   void AddSink(DOMStorageObserverSink* aObs);
michael@0:   void RemoveSink(DOMStorageObserverSink* aObs);
michael@0:   void Notify(const char* aTopic, const nsACString& aData = EmptyCString());
michael@0: 
michael@0: private:
michael@0:   static DOMStorageObserver* sSelf;
michael@0: 
michael@0:   // Weak references
michael@0:   nsTArray<DOMStorageObserverSink*> mSinks;
michael@0:   nsCOMPtr<nsITimer> mDBThreadStartDelayTimer;
michael@0: };
michael@0: 
michael@0: } // ::dom
michael@0: } // ::mozilla
michael@0: 
michael@0: #endif