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/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* 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_idbindex_h__
#define mozilla_dom_idbindex_h__
#include "js/RootingAPI.h"
#include "mozilla/Attributes.h"
#include "mozilla/dom/IDBCursorBinding.h"
#include "nsAutoPtr.h"
#include "nsCycleCollectionParticipant.h"
#include "nsISupports.h"
#include "nsTArrayForwardDeclare.h"
#include "nsWrapperCache.h"
class nsPIDOMWindowInner;
namespace mozilla {
class ErrorResult;
namespace dom {
class IDBObjectStore;
class IDBRequest;
template <typename> class Sequence;
namespace indexedDB {
class IndexMetadata;
class KeyPath;
} // namespace indexedDB
class IDBIndex final
: public nsISupports
, public nsWrapperCache
{
RefPtr<IDBObjectStore> mObjectStore;
JS::Heap<JS::Value> mCachedKeyPath;
// This normally points to the IndexMetadata owned by the parent IDBDatabase
// object. However, if this index is part of a versionchange transaction and
// it gets deleted then the metadata is copied into mDeletedMetadata and
// mMetadata is set to point at mDeletedMetadata.
const indexedDB::IndexMetadata* mMetadata;
nsAutoPtr<indexedDB::IndexMetadata> mDeletedMetadata;
const int64_t mId;
bool mRooted;
public:
NS_DECL_CYCLE_COLLECTING_ISUPPORTS
NS_DECL_CYCLE_COLLECTION_SCRIPT_HOLDER_CLASS(IDBIndex)
static already_AddRefed<IDBIndex>
Create(IDBObjectStore* aObjectStore, const indexedDB::IndexMetadata& aMetadata);
int64_t
Id() const
{
AssertIsOnOwningThread();
return mId;
}
const nsString&
Name() const;
bool
Unique() const;
bool
MultiEntry() const;
bool
LocaleAware() const;
const indexedDB::KeyPath&
GetKeyPath() const;
void
GetLocale(nsString& aLocale) const;
const nsCString&
Locale() const;
bool
IsAutoLocale() const;
IDBObjectStore*
ObjectStore() const
{
AssertIsOnOwningThread();
return mObjectStore;
}
nsPIDOMWindowInner*
GetParentObject() const;
void
GetName(nsString& aName) const
{
aName = Name();
}
void
SetName(const nsAString& aName, ErrorResult& aRv);
void
GetKeyPath(JSContext* aCx,
JS::MutableHandle<JS::Value> aResult,
ErrorResult& aRv);
already_AddRefed<IDBRequest>
OpenCursor(JSContext* aCx,
JS::Handle<JS::Value> aRange,
IDBCursorDirection aDirection,
ErrorResult& aRv)
{
AssertIsOnOwningThread();
return OpenCursorInternal(/* aKeysOnly */ false, aCx, aRange, aDirection,
aRv);
}
already_AddRefed<IDBRequest>
OpenKeyCursor(JSContext* aCx,
JS::Handle<JS::Value> aRange,
IDBCursorDirection aDirection,
ErrorResult& aRv)
{
AssertIsOnOwningThread();
return OpenCursorInternal(/* aKeysOnly */ true, aCx, aRange, aDirection,
aRv);
}
already_AddRefed<IDBRequest>
Get(JSContext* aCx, JS::Handle<JS::Value> aKey, ErrorResult& aRv)
{
AssertIsOnOwningThread();
return GetInternal(/* aKeyOnly */ false, aCx, aKey, aRv);
}
already_AddRefed<IDBRequest>
GetKey(JSContext* aCx, JS::Handle<JS::Value> aKey, ErrorResult& aRv)
{
AssertIsOnOwningThread();
return GetInternal(/* aKeyOnly */ true, aCx, aKey, aRv);
}
already_AddRefed<IDBRequest>
Count(JSContext* aCx, JS::Handle<JS::Value> aKey,
ErrorResult& aRv);
already_AddRefed<IDBRequest>
GetAll(JSContext* aCx, JS::Handle<JS::Value> aKey,
const Optional<uint32_t>& aLimit, ErrorResult& aRv)
{
AssertIsOnOwningThread();
return GetAllInternal(/* aKeysOnly */ false, aCx, aKey, aLimit, aRv);
}
already_AddRefed<IDBRequest>
GetAllKeys(JSContext* aCx, JS::Handle<JS::Value> aKey,
const Optional<uint32_t>& aLimit, ErrorResult& aRv)
{
AssertIsOnOwningThread();
return GetAllInternal(/* aKeysOnly */ true, aCx, aKey, aLimit, aRv);
}
void
RefreshMetadata(bool aMayDelete);
void
NoteDeletion();
bool
IsDeleted() const
{
AssertIsOnOwningThread();
return !!mDeletedMetadata;
}
void
AssertIsOnOwningThread() const
#ifdef DEBUG
;
#else
{ }
#endif
// nsWrapperCache
virtual JSObject*
WrapObject(JSContext* aCx, JS::Handle<JSObject*> aGivenProto) override;
private:
IDBIndex(IDBObjectStore* aObjectStore, const indexedDB::IndexMetadata* aMetadata);
~IDBIndex();
already_AddRefed<IDBRequest>
GetInternal(bool aKeyOnly,
JSContext* aCx,
JS::Handle<JS::Value> aKey,
ErrorResult& aRv);
already_AddRefed<IDBRequest>
GetAllInternal(bool aKeysOnly,
JSContext* aCx,
JS::Handle<JS::Value> aKey,
const Optional<uint32_t>& aLimit,
ErrorResult& aRv);
already_AddRefed<IDBRequest>
OpenCursorInternal(bool aKeysOnly,
JSContext* aCx,
JS::Handle<JS::Value> aRange,
IDBCursorDirection aDirection,
ErrorResult& aRv);
};
} // namespace dom
} // namespace mozilla
#endif // mozilla_dom_idbindex_h__
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