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/*
* Copyright (C) 2011 Google Inc. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND ANY
* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR ANY
* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef THIRD_PARTY_BLINK_RENDERER_MODULES_INDEXEDDB_IDB_DATABASE_CALLBACKS_H_
#define THIRD_PARTY_BLINK_RENDERER_MODULES_INDEXEDDB_IDB_DATABASE_CALLBACKS_H_
#include "third_party/blink/renderer/modules/indexeddb/web_idb_database_callbacks.h"
#include "third_party/blink/renderer/modules/modules_export.h"
#include "third_party/blink/renderer/platform/heap/handle.h"
namespace blink {
class DOMException;
class IDBDatabase;
class IDBObservation;
class MODULES_EXPORT IDBDatabaseCallbacks
: public GarbageCollected<IDBDatabaseCallbacks> {
public:
IDBDatabaseCallbacks();
virtual ~IDBDatabaseCallbacks();
void Trace(blink::Visitor*);
// IDBDatabaseCallbacks
virtual void OnForcedClose();
virtual void OnVersionChange(int64_t old_version, int64_t new_version);
virtual void OnAbort(int64_t transaction_id, DOMException*);
virtual void OnComplete(int64_t transaction_id);
virtual void OnChanges(
const WebIDBDatabaseCallbacks::ObservationIndexMap&,
Vector<Persistent<IDBObservation>> observations,
const WebIDBDatabaseCallbacks::TransactionMap& transactions);
void Connect(IDBDatabase*);
// Returns a new WebIDBDatabaseCallbacks for this object. Must only be
// called once.
std::unique_ptr<WebIDBDatabaseCallbacks> CreateWebCallbacks();
void DetachWebCallbacks();
void WebCallbacksDestroyed();
private:
// The initial IDBOpenDBRequest, final IDBDatabase, and/or
// WebIDBDatabaseCallbacks have strong references to an IDBDatabaseCallbacks
// object.
// Oilpan: We'd like to delete an IDBDatabase object by a
// GC. WebIDBDatabaseCallbacks can survive the GC, and IDBDatabaseCallbacks
// can survive too. |database_| should be a weak reference to avoid that an
// IDBDatabase survives the GC with the IDBDatabaseCallbacks.
WeakMember<IDBDatabase> database_;
// Pointer back to the WebIDBDatabaseCallbacks that holds a persistent
// reference to this object.
WebIDBDatabaseCallbacks* web_callbacks_ = nullptr;
};
} // namespace blink
#endif // THIRD_PARTY_BLINK_RENDERER_MODULES_INDEXEDDB_IDB_DATABASE_CALLBACKS_H_
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