Source/modules/indexeddb/IDBCallbacks.h

/*
 * Copyright (C) 2010 Google Inc. All rights reserved.
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 *     notice, this list of conditions and the following disclaimer.
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 *     its contributors may be used to endorse or promote products derived
 *     from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND ANY
 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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#ifndef IDBCallbacks_h
#define IDBCallbacks_h

#include "core/platform/SharedBuffer.h"
#include "modules/indexeddb/IDBDatabaseBackendInterface.h"
#include "modules/indexeddb/IDBDatabaseError.h"
#include "modules/indexeddb/IDBKey.h"
#include "modules/indexeddb/IDBKeyPath.h"
#include "public/platform/WebIDBCallbacks.h"
#include "wtf/RefCounted.h"

namespace WebCore {
class IDBCursorBackendInterface;

class IDBCallbacks : public RefCounted<IDBCallbacks> {
public:
    virtual ~IDBCallbacks() { }

    virtual void onError(PassRefPtr<IDBDatabaseError>) = 0;
    // From IDBFactory.webkitGetDatabaseNames()
    virtual void onSuccess(const Vector<String>&) = 0;
    // From IDBObjectStore/IDBIndex.openCursor(), IDBIndex.openKeyCursor()
    virtual void onSuccess(PassRefPtr<IDBCursorBackendInterface>, PassRefPtr<IDBKey>, PassRefPtr<IDBKey> primaryKey, PassRefPtr<SharedBuffer>) = 0;
    // From IDBObjectStore.add()/put(), IDBIndex.getKey()
    virtual void onSuccess(PassRefPtr<IDBKey>) = 0;
    // From IDBObjectStore/IDBIndex.get()/count(), and various methods that yield null/undefined.
    virtual void onSuccess(PassRefPtr<SharedBuffer>) = 0;
    // From IDBObjectStore/IDBIndex.get() (with key injection)
    virtual void onSuccess(PassRefPtr<SharedBuffer>, PassRefPtr<IDBKey>, const IDBKeyPath&) = 0;
    // From IDBObjectStore/IDBIndex.count()
    virtual void onSuccess(int64_t value) = 0;

    // From IDBFactor.deleteDatabase(), IDBObjectStore/IDBIndex.get(), IDBObjectStore.delete(), IDBObjectStore.clear()
    virtual void onSuccess() = 0;

    // From IDBCursor.advance()/continue()
    virtual void onSuccess(PassRefPtr<IDBKey>, PassRefPtr<IDBKey> primaryKey, PassRefPtr<SharedBuffer>) = 0;
    // From IDBFactory.open()/deleteDatabase()
    virtual void onBlocked(int64_t /* existingVersion */) { ASSERT_NOT_REACHED(); }
    // From IDBFactory.open()
    virtual void onUpgradeNeeded(int64_t /* oldVersion */, PassRefPtr<IDBDatabaseBackendInterface>, const IDBDatabaseMetadata&, WebKit::WebIDBCallbacks::DataLoss dataLoss) { ASSERT_NOT_REACHED(); }
    virtual void onSuccess(PassRefPtr<IDBDatabaseBackendInterface>, const IDBDatabaseMetadata&) { ASSERT_NOT_REACHED(); }
};

} // namespace WebCore

#endif // IDBCallbacks_h