gecko/dom/indexedDB/IDBDatabase.h

/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim: set ts=2 et sw=2 tw=80: */
/* ***** BEGIN LICENSE BLOCK *****
 * Version: MPL 1.1/GPL 2.0/LGPL 2.1
 *
 * The contents of this file are subject to the Mozilla Public License Version
 * 1.1 (the "License"); you may not use this file except in compliance with
 * the License. You may obtain a copy of the License at
 * http://www.mozilla.org/MPL/
 *
 * Software distributed under the License is distributed on an "AS IS" basis,
 * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
 * for the specific language governing rights and limitations under the
 * License.
 *
 * The Original Code is Indexed Database.
 *
 * The Initial Developer of the Original Code is
 * The Mozilla Foundation.
 * Portions created by the Initial Developer are Copyright (C) 2010
 * the Initial Developer. All Rights Reserved.
 *
 * Contributor(s):
 *   Ben Turner <bent.mozilla@gmail.com>
 *
 * Alternatively, the contents of this file may be used under the terms of
 * either the GNU General Public License Version 2 or later (the "GPL"), or
 * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
 * in which case the provisions of the GPL or the LGPL are applicable instead
 * of those above. If you wish to allow use of your version of this file only
 * under the terms of either the GPL or the LGPL, and not to allow others to
 * use your version of this file under the terms of the MPL, indicate your
 * decision by deleting the provisions above and replace them with the notice
 * and other provisions required by the GPL or the LGPL. If you do not delete
 * the provisions above, a recipient may use your version of this file under
 * the terms of any one of the MPL, the GPL or the LGPL.
 *
 * ***** END LICENSE BLOCK ***** */

#ifndef mozilla_dom_indexeddb_idbdatabase_h__
#define mozilla_dom_indexeddb_idbdatabase_h__

#include "mozilla/dom/indexedDB/IndexedDatabase.h"
#include "mozilla/dom/indexedDB/LazyIdleThread.h"

#include "nsIIDBDatabase.h"
#include "nsIObserver.h"

#include "nsCycleCollectionParticipant.h"
#include "nsDOMEventTargetHelper.h"
#include "nsDOMLists.h"

class mozIStorageConnection;
class nsIScriptContext;
class nsPIDOMWindow;

BEGIN_INDEXEDDB_NAMESPACE

class AsyncConnectionHelper;
struct DatabaseInfo;
class IDBTransaction;

class IDBDatabase : public nsDOMEventTargetHelper,
                    public nsIIDBDatabase,
                    public nsIObserver
{
  friend class AsyncConnectionHelper;

public:
  NS_DECL_ISUPPORTS_INHERITED
  NS_DECL_NSIIDBDATABASE
  NS_DECL_NSIOBSERVER

  NS_DECL_CYCLE_COLLECTION_CLASS_INHERITED(IDBDatabase,
                                           nsDOMEventTargetHelper)

  static already_AddRefed<IDBDatabase>
  Create(nsIScriptContext* aScriptContext,
         nsPIDOMWindow* aOwner,
         DatabaseInfo* aDatabaseInfo,
         LazyIdleThread* aThread,
         nsCOMPtr<mozIStorageConnection>& aConnection,
         const nsACString& aASCIIOrigin);

  nsIThread* ConnectionThread()
  {
    return mConnectionThread;
  }

  void CloseConnection();

  PRUint32 Id()
  {
    return mDatabaseId;
  }

  const nsString& FilePath()
  {
    return mFilePath;
  }

  nsIScriptContext* ScriptContext()
  {
    NS_ASSERTION(mScriptContext, "This should never be null!");
    return mScriptContext;
  }

  nsPIDOMWindow* Owner()
  {
    NS_ASSERTION(mOwner, "This should never be null!");
    return mOwner;
  }

  bool
  IsQuotaDisabled();

  nsCString& Origin()
  {
    return mASCIIOrigin;
  }

  void Invalidate();
  bool IsInvalidated();

  void WaitForConnectionReleased();

private:
  IDBDatabase();
  ~IDBDatabase();

  // Only meant to be called on mStorageThread!
  nsresult GetOrCreateConnection(mozIStorageConnection** aConnection);

  PRUint32 mDatabaseId;
  nsString mName;
  nsString mDescription;
  nsString mFilePath;
  nsCString mASCIIOrigin;
  PRInt32 mInvalidated;

  nsRefPtr<LazyIdleThread> mConnectionThread;

  // Only touched on mStorageThread! These must be destroyed in the
  // FireCloseConnectionRunnable method.
  nsCOMPtr<mozIStorageConnection> mConnection;

  // Only touched on the main thread.
  nsRefPtr<nsDOMEventListenerWrapper> mOnErrorListener;
};

END_INDEXEDDB_NAMESPACE

#endif // mozilla_dom_indexeddb_idbdatabase_h__