gecko/dom/indexedDB/IDBRequest.cpp

165 lines
5.1 KiB
C++

/* -*- 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):
* Shawn Wilsher <me@shawnwilsher.com>
* 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 ***** */
#include "IDBRequest.h"
#include "nsIScriptContext.h"
#include "nsIVariant.h"
#include "nsComponentManagerUtils.h"
#include "nsDOMClassInfo.h"
#include "nsDOMJSUtils.h"
#include "nsPIDOMWindow.h"
#include "nsStringGlue.h"
#include "nsThreadUtils.h"
#include "IDBEvents.h"
USING_INDEXEDDB_NAMESPACE
already_AddRefed<IDBRequest>
IDBRequest::Generator::GenerateRequestInternal(nsIScriptContext* aScriptContext,
nsPIDOMWindow* aOwner,
PRBool aWriteRequest)
{
if (!aScriptContext || !aOwner) {
NS_ERROR("Null context and owner!");
return nsnull;
}
nsRefPtr<IDBRequest> request(new IDBRequest());
request->mGenerator = this;
request->mWriteRequest = aWriteRequest;
request->mScriptContext = aScriptContext;
request->mOwner = aOwner;
if (!mLiveRequests.AppendElement(request)) {
NS_ERROR("Append failed!");
return nsnull;
}
return request.forget();
}
IDBRequest::~IDBRequest()
{
mGenerator->NoteDyingRequest(this);
if (mListenerManager) {
mListenerManager->Disconnect();
}
}
NS_IMETHODIMP
IDBRequest::Abort()
{
NS_ASSERTION(NS_IsMainThread(), "Wrong thread!");
if (mAborted || mReadyState != nsIIDBRequest::LOADING) {
return NS_OK;
}
if (mWriteRequest) {
return NS_ERROR_NOT_AVAILABLE;
}
mAborted = PR_TRUE;
mReadyState = nsIIDBRequest::DONE;
return NS_OK;
}
NS_IMETHODIMP
IDBRequest::GetReadyState(PRUint16* aReadyState)
{
*aReadyState = mReadyState;
return NS_OK;
}
NS_IMETHODIMP
IDBRequest::SetOnsuccess(nsIDOMEventListener* aSuccessListener)
{
return RemoveAddEventListener(NS_LITERAL_STRING(SUCCESS_EVT_STR),
mOnSuccessListener, aSuccessListener);
}
NS_IMETHODIMP
IDBRequest::GetOnsuccess(nsIDOMEventListener** aSuccessListener)
{
return GetInnerEventListener(mOnSuccessListener, aSuccessListener);
}
NS_IMETHODIMP
IDBRequest::SetOnerror(nsIDOMEventListener* aErrorListener)
{
return RemoveAddEventListener(NS_LITERAL_STRING(ERROR_EVT_STR),
mOnErrorListener, aErrorListener);
}
NS_IMETHODIMP
IDBRequest::GetOnerror(nsIDOMEventListener** aErrorListener)
{
return GetInnerEventListener(mOnErrorListener, aErrorListener);
}
NS_IMPL_CYCLE_COLLECTION_CLASS(IDBRequest)
NS_IMPL_CYCLE_COLLECTION_TRAVERSE_BEGIN_INHERITED(IDBRequest,
nsDOMEventTargetHelper)
NS_IMPL_CYCLE_COLLECTION_TRAVERSE_NSCOMPTR(mOnSuccessListener)
NS_IMPL_CYCLE_COLLECTION_TRAVERSE_NSCOMPTR(mOnErrorListener)
NS_IMPL_CYCLE_COLLECTION_TRAVERSE_END
NS_IMPL_CYCLE_COLLECTION_UNLINK_BEGIN_INHERITED(IDBRequest,
nsDOMEventTargetHelper)
NS_IMPL_CYCLE_COLLECTION_UNLINK_NSCOMPTR(mOnSuccessListener)
NS_IMPL_CYCLE_COLLECTION_UNLINK_NSCOMPTR(mOnErrorListener)
NS_IMPL_CYCLE_COLLECTION_UNLINK_END
NS_INTERFACE_MAP_BEGIN_CYCLE_COLLECTION_INHERITED(IDBRequest)
NS_INTERFACE_MAP_ENTRY(nsIIDBRequest)
NS_DOM_INTERFACE_MAP_ENTRY_CLASSINFO(IDBRequest)
NS_INTERFACE_MAP_END_INHERITING(nsDOMEventTargetHelper)
NS_IMPL_ADDREF_INHERITED(IDBRequest, nsDOMEventTargetHelper)
NS_IMPL_RELEASE_INHERITED(IDBRequest, nsDOMEventTargetHelper)
DOMCI_DATA(IDBRequest, IDBRequest)