gecko-dev/dom/datastore/DataStoreDB.h
2015-05-03 15:32:37 -04:00

84 lines
1.9 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_DataStoreDB_h
#define mozilla_dom_DataStoreDB_h
#include "mozilla/dom/IDBTransactionBinding.h"
#include "nsAutoPtr.h"
#include "nsIDOMEventListener.h"
#include "nsISupportsImpl.h"
#include "nsString.h"
#define DATASTOREDB_REVISION "revision"
namespace mozilla {
namespace dom {
namespace indexedDB {
class IDBDatabase;
class IDBFactory;
class IDBOpenDBRequest;
class IDBTransaction;
}
class DataStoreDBCallback;
class DataStoreDB final : public nsIDOMEventListener
{
public:
NS_DECL_ISUPPORTS
DataStoreDB(const nsAString& aManifestURL, const nsAString& aName);
nsresult Open(IDBTransactionMode aMode, const Sequence<nsString>& aDb,
DataStoreDBCallback* aCallback);
nsresult Delete();
indexedDB::IDBTransaction* Transaction() const;
// nsIDOMEventListener
NS_IMETHOD HandleEvent(nsIDOMEvent* aEvent) override;
private:
~DataStoreDB();
nsresult CreateFactoryIfNeeded();
nsresult UpgradeSchema(nsIDOMEvent* aEvent);
nsresult DatabaseOpened();
nsresult AddEventListeners();
nsresult RemoveEventListeners();
nsString mDatabaseName;
nsRefPtr<indexedDB::IDBFactory> mFactory;
nsRefPtr<indexedDB::IDBOpenDBRequest> mRequest;
nsRefPtr<indexedDB::IDBDatabase> mDatabase;
nsRefPtr<indexedDB::IDBTransaction> mTransaction;
nsRefPtr<DataStoreDBCallback> mCallback;
// Internal state to avoid strange use of this class.
enum StateType {
Inactive,
Active
} mState;
IDBTransactionMode mTransactionMode;
Sequence<nsString> mObjectStores;
bool mCreatedSchema;
};
} // namespace dom
} // namespace mozilla
#endif // mozilla_dom_DataStoreDB_h