gecko/dom/indexedDB/IDBRequest.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: */
2012-05-21 04:12:37 -07:00
/* 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_idbrequest_h__
#define mozilla_dom_indexeddb_idbrequest_h__
#include "mozilla/dom/indexedDB/IndexedDatabase.h"
#include "nsIIDBRequest.h"
#include "nsIIDBOpenDBRequest.h"
#include "nsDOMEventTargetHelper.h"
#include "mozilla/dom/indexedDB/IDBWrapperCache.h"
class nsIScriptContext;
class nsPIDOMWindow;
BEGIN_INDEXEDDB_NAMESPACE
class HelperBase;
class IDBTransaction;
class IDBRequest : public IDBWrapperCache,
public nsIIDBRequest
{
public:
NS_DECL_ISUPPORTS_INHERITED
NS_DECL_NSIIDBREQUEST
NS_DECL_CYCLE_COLLECTION_SCRIPT_HOLDER_CLASS_INHERITED(IDBRequest,
IDBWrapperCache)
static
already_AddRefed<IDBRequest> Create(nsISupports* aSource,
IDBWrapperCache* aOwnerCache,
IDBTransaction* aTransaction);
// nsIDOMEventTarget
virtual nsresult PreHandleEvent(nsEventChainPreVisitor& aVisitor);
nsISupports* Source()
{
return mSource;
}
void Reset();
nsresult NotifyHelperCompleted(HelperBase* aHelper);
void SetError(nsresult rv);
protected:
IDBRequest();
~IDBRequest();
virtual void RootResultValInternal();
virtual void UnrootResultValInternal();
void RootResultVal()
{
if (!mRooted) {
RootResultValInternal();
mRooted = true;
}
}
void UnrootResultVal()
{
if (mRooted) {
UnrootResultValInternal();
mRooted = false;
}
}
nsCOMPtr<nsISupports> mSource;
nsRefPtr<IDBTransaction> mTransaction;
NS_DECL_EVENT_HANDLER(success)
NS_DECL_EVENT_HANDLER(error)
jsval mResultVal;
nsCOMPtr<nsIDOMDOMError> mError;
bool mHaveResultOrErrorCode;
bool mRooted;
};
class IDBOpenDBRequest : public IDBRequest,
public nsIIDBOpenDBRequest
{
public:
NS_DECL_ISUPPORTS_INHERITED
NS_FORWARD_NSIIDBREQUEST(IDBRequest::)
NS_DECL_NSIIDBOPENDBREQUEST
NS_DECL_CYCLE_COLLECTION_CLASS_INHERITED(IDBOpenDBRequest, IDBRequest)
static
already_AddRefed<IDBOpenDBRequest>
Create(nsPIDOMWindow* aOwner,
JSObject* aScriptOwner);
static
already_AddRefed<IDBOpenDBRequest>
Create(IDBWrapperCache* aOwnerCache)
{
return Create(aOwnerCache->GetOwner(),
aOwnerCache->GetScriptOwner());
}
void SetTransaction(IDBTransaction* aTransaction);
protected:
~IDBOpenDBRequest();
virtual void RootResultValInternal();
virtual void UnrootResultValInternal();
// Only touched on the main thread.
NS_DECL_EVENT_HANDLER(blocked)
NS_DECL_EVENT_HANDLER(upgradeneeded)
};
END_INDEXEDDB_NAMESPACE
#endif // mozilla_dom_indexeddb_idbrequest_h__