gecko-dev/dom/indexedDB/IDBDatabase.h

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/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim: set ts=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_indexeddb_idbdatabase_h__
#define mozilla_dom_indexeddb_idbdatabase_h__
#include "mozilla/Attributes.h"
#include "mozilla/dom/indexedDB/IndexedDatabase.h"
#include "nsIDocument.h"
#include "nsIFileStorage.h"
#include "nsIIDBDatabase.h"
#include "nsIOfflineStorage.h"
#include "nsDOMEventTargetHelper.h"
#include "mozilla/dom/indexedDB/FileManager.h"
#include "mozilla/dom/indexedDB/IDBWrapperCache.h"
class nsIScriptContext;
class nsPIDOMWindow;
namespace mozilla {
namespace dom {
class ContentParent;
namespace quota {
class Client;
}
}
}
BEGIN_INDEXEDDB_NAMESPACE
class AsyncConnectionHelper;
struct DatabaseInfo;
class IDBFactory;
class IDBIndex;
class IDBObjectStore;
class IDBTransaction;
class IndexedDatabaseManager;
class IndexedDBDatabaseChild;
class IndexedDBDatabaseParent;
struct ObjectStoreInfoGuts;
class IDBDatabase : public IDBWrapperCache,
public nsIIDBDatabase,
public nsIOfflineStorage
{
friend class AsyncConnectionHelper;
friend class IndexedDatabaseManager;
friend class IndexedDBDatabaseChild;
public:
NS_DECL_ISUPPORTS_INHERITED
NS_DECL_NSIIDBDATABASE
NS_DECL_NSIFILESTORAGE
NS_DECL_NSIOFFLINESTORAGE_NOCLOSE
NS_DECL_CYCLE_COLLECTION_CLASS_INHERITED(IDBDatabase, IDBWrapperCache)
static already_AddRefed<IDBDatabase>
Create(IDBWrapperCache* aOwnerCache,
IDBFactory* aFactory,
already_AddRefed<DatabaseInfo> aDatabaseInfo,
const nsACString& aASCIIOrigin,
FileManager* aFileManager,
mozilla::dom::ContentParent* aContentParent);
static IDBDatabase*
FromStorage(nsIOfflineStorage* aStorage);
static IDBDatabase*
FromStorage(nsIFileStorage* aStorage)
{
nsCOMPtr<nsIOfflineStorage> storage = do_QueryInterface(aStorage);
return storage ? FromStorage(storage) : nullptr;
}
// nsIDOMEventTarget
virtual nsresult PostHandleEvent(nsEventChainPostVisitor& aVisitor) MOZ_OVERRIDE;
DatabaseInfo* Info() const
{
return mDatabaseInfo;
}
const nsString& Name() const
{
return mName;
}
const nsString& FilePath() const
{
return mFilePath;
}
already_AddRefed<nsIDocument> GetOwnerDocument()
{
if (!GetOwner()) {
return nullptr;
}
nsCOMPtr<nsIDocument> doc = GetOwner()->GetExtantDoc();
return doc.forget();
}
void DisconnectFromActorParent();
void CloseInternal(bool aIsDead);
void EnterSetVersionTransaction();
void ExitSetVersionTransaction();
// Called when a versionchange transaction is aborted to reset the
// DatabaseInfo.
void RevertToPreviousState();
FileManager* Manager() const
{
return mFileManager;
}
void
SetActor(IndexedDBDatabaseChild* aActorChild)
{
NS_ASSERTION(!aActorChild || !mActorChild, "Shouldn't have more than one!");
mActorChild = aActorChild;
}
void
SetActor(IndexedDBDatabaseParent* aActorParent)
{
NS_ASSERTION(!aActorParent || !mActorParent,
"Shouldn't have more than one!");
mActorParent = aActorParent;
}
IndexedDBDatabaseChild*
GetActorChild() const
{
return mActorChild;
}
IndexedDBDatabaseParent*
GetActorParent() const
{
return mActorParent;
}
mozilla::dom::ContentParent*
GetContentParent() const
{
return mContentParent;
}
nsresult
CreateObjectStoreInternal(IDBTransaction* aTransaction,
const ObjectStoreInfoGuts& aInfo,
IDBObjectStore** _retval);
private:
IDBDatabase();
~IDBDatabase();
void OnUnlink();
// The factory must be kept alive when IndexedDB is used in multiple
// processes. If it dies then the entire actor tree will be destroyed with it
// and the world will explode.
nsRefPtr<IDBFactory> mFactory;
nsRefPtr<DatabaseInfo> mDatabaseInfo;
// Set to a copy of the existing DatabaseInfo when starting a versionchange
// transaction.
nsRefPtr<DatabaseInfo> mPreviousDatabaseInfo;
nsCOMPtr<nsIAtom> mDatabaseId;
nsString mName;
nsString mFilePath;
nsCString mASCIIOrigin;
nsRefPtr<FileManager> mFileManager;
IndexedDBDatabaseChild* mActorChild;
IndexedDBDatabaseParent* mActorParent;
mozilla::dom::ContentParent* mContentParent;
nsRefPtr<mozilla::dom::quota::Client> mQuotaClient;
bool mInvalidated;
bool mRegistered;
bool mClosed;
bool mRunningVersionChange;
};
END_INDEXEDDB_NAMESPACE
#endif // mozilla_dom_indexeddb_idbdatabase_h__