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/* -*- 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_idbrequest_h__
#define mozilla_dom_idbrequest_h__
#include "js/RootingAPI.h"
#include "mozilla/Attributes.h"
#include "mozilla/EventForwards.h"
#include "mozilla/dom/IDBRequestBinding.h"
#include "mozilla/dom/IDBWrapperCache.h"
#include "nsAutoPtr.h"
#include "nsCycleCollectionParticipant.h"
#define PRIVATE_IDBREQUEST_IID \
{0xe68901e5, 0x1d50, 0x4ee9, {0xaf, 0x49, 0x90, 0x99, 0x4a, 0xff, 0xc8, 0x39}}
class nsPIDOMWindowInner;
struct PRThread;
namespace mozilla {
class ErrorResult;
namespace dom {
class DOMError;
class IDBCursor;
class IDBDatabase;
class IDBFactory;
class IDBIndex;
class IDBObjectStore;
class IDBTransaction;
template <typename> struct Nullable;
class OwningIDBObjectStoreOrIDBIndexOrIDBCursor;
class IDBRequest
: public IDBWrapperCache
{
protected:
// mSourceAsObjectStore and mSourceAsIndex are exclusive and one must always
// be set. mSourceAsCursor is sometimes set also.
RefPtr<IDBObjectStore> mSourceAsObjectStore;
RefPtr<IDBIndex> mSourceAsIndex;
RefPtr<IDBCursor> mSourceAsCursor;
RefPtr<IDBTransaction> mTransaction;
#ifdef DEBUG
PRThread* mOwningThread;
#endif
JS::Heap<JS::Value> mResultVal;
RefPtr<DOMError> mError;
nsString mFilename;
uint64_t mLoggingSerialNumber;
nsresult mErrorCode;
uint32_t mLineNo;
uint32_t mColumn;
bool mHaveResultOrErrorCode;
public:
class ResultCallback;
static already_AddRefed<IDBRequest>
Create(JSContext* aCx, IDBDatabase* aDatabase, IDBTransaction* aTransaction);
static already_AddRefed<IDBRequest>
Create(JSContext* aCx,
IDBObjectStore* aSource,
IDBDatabase* aDatabase,
IDBTransaction* aTransaction);
static already_AddRefed<IDBRequest>
Create(JSContext* aCx,
IDBIndex* aSource,
IDBDatabase* aDatabase,
IDBTransaction* aTransaction);
static void
CaptureCaller(JSContext* aCx, nsAString& aFilename, uint32_t* aLineNo,
uint32_t* aColumn);
static uint64_t
NextSerialNumber();
// nsIDOMEventTarget
virtual nsresult
GetEventTargetParent(EventChainPreVisitor& aVisitor) override;
void
GetSource(Nullable<OwningIDBObjectStoreOrIDBIndexOrIDBCursor>& aSource) const;
void
Reset();
void
DispatchNonTransactionError(nsresult aErrorCode);
void
SetResultCallback(ResultCallback* aCallback);
void
SetError(nsresult aRv);
nsresult
GetErrorCode() const
#ifdef DEBUG
;
#else
{
return mErrorCode;
}
#endif
DOMError*
GetErrorAfterResult() const
#ifdef DEBUG
;
#else
{
return mError;
}
#endif
DOMError*
GetError(ErrorResult& aRv);
void
GetCallerLocation(nsAString& aFilename, uint32_t* aLineNo,
uint32_t* aColumn) const;
bool
IsPending() const
{
return !mHaveResultOrErrorCode;
}
uint64_t
LoggingSerialNumber() const
{
AssertIsOnOwningThread();
return mLoggingSerialNumber;
}
void
SetLoggingSerialNumber(uint64_t aLoggingSerialNumber);
nsPIDOMWindowInner*
GetParentObject() const
{
return GetOwner();
}
void
GetResult(JS::MutableHandle<JS::Value> aResult, ErrorResult& aRv) const;
void
GetResult(JSContext* aCx, JS::MutableHandle<JS::Value> aResult,
ErrorResult& aRv) const
{
GetResult(aResult, aRv);
}
IDBTransaction*
GetTransaction() const
{
AssertIsOnOwningThread();
return mTransaction;
}
IDBRequestReadyState
ReadyState() const;
void
SetSource(IDBCursor* aSource);
IMPL_EVENT_HANDLER(success);
IMPL_EVENT_HANDLER(error);
void
AssertIsOnOwningThread() const
#ifdef DEBUG
;
#else
{ }
#endif
NS_DECL_ISUPPORTS_INHERITED
NS_DECL_CYCLE_COLLECTION_SCRIPT_HOLDER_CLASS_INHERITED(IDBRequest,
IDBWrapperCache)
// nsWrapperCache
virtual JSObject*
WrapObject(JSContext* aCx, JS::Handle<JSObject*> aGivenProto) override;
protected:
explicit IDBRequest(IDBDatabase* aDatabase);
explicit IDBRequest(nsPIDOMWindowInner* aOwner);
~IDBRequest();
void
InitMembers();
void
ConstructResult();
};
class NS_NO_VTABLE IDBRequest::ResultCallback
{
public:
virtual nsresult
GetResult(JSContext* aCx, JS::MutableHandle<JS::Value> aResult) = 0;
protected:
ResultCallback()
{ }
};
class IDBOpenDBRequest final
: public IDBRequest
{
class WorkerHolder;
// Only touched on the owning thread.
RefPtr<IDBFactory> mFactory;
nsAutoPtr<WorkerHolder> mWorkerHolder;
const bool mFileHandleDisabled;
public:
static already_AddRefed<IDBOpenDBRequest>
CreateForWindow(JSContext* aCx,
IDBFactory* aFactory,
nsPIDOMWindowInner* aOwner,
JS::Handle<JSObject*> aScriptOwner);
static already_AddRefed<IDBOpenDBRequest>
CreateForJS(JSContext* aCx,
IDBFactory* aFactory,
JS::Handle<JSObject*> aScriptOwner);
bool
IsFileHandleDisabled() const
{
return mFileHandleDisabled;
}
void
SetTransaction(IDBTransaction* aTransaction);
void
NoteComplete();
// nsIDOMEventTarget
virtual nsresult
PostHandleEvent(EventChainPostVisitor& aVisitor) override;
IDBFactory*
Factory() const
{
return mFactory;
}
IMPL_EVENT_HANDLER(blocked);
IMPL_EVENT_HANDLER(upgradeneeded);
NS_DECL_ISUPPORTS_INHERITED
NS_DECL_CYCLE_COLLECTION_CLASS_INHERITED(IDBOpenDBRequest, IDBRequest)
// nsWrapperCache
virtual JSObject*
WrapObject(JSContext* aCx, JS::Handle<JSObject*> aGivenProto) override;
private:
IDBOpenDBRequest(IDBFactory* aFactory,
nsPIDOMWindowInner* aOwner,
bool aFileHandleDisabled);
~IDBOpenDBRequest();
};
} // namespace dom
} // namespace mozilla
#endif // mozilla_dom_idbrequest_h__
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