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      1 /*
      2  * Copyright (C) 2010 Google Inc. All rights reserved.
      3  *
      4  * Redistribution and use in source and binary forms, with or without
      5  * modification, are permitted provided that the following conditions
      6  * are met:
      7  *
      8  * 1.  Redistributions of source code must retain the above copyright
      9  *     notice, this list of conditions and the following disclaimer.
     10  * 2.  Redistributions in binary form must reproduce the above copyright
     11  *     notice, this list of conditions and the following disclaimer in the
     12  *     documentation and/or other materials provided with the distribution.
     13  * 3.  Neither the name of Apple Computer, Inc. ("Apple") nor the names of
     14  *     its contributors may be used to endorse or promote products derived
     15  *     from this software without specific prior written permission.
     16  *
     17  * THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND ANY
     18  * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
     19  * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
     20  * DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR ANY
     21  * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
     22  * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
     23  * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
     24  * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     25  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
     26  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     27  */
     28 
     29 #ifndef IDBCallbacks_h
     30 #define IDBCallbacks_h
     31 
     32 #include "core/platform/SharedBuffer.h"
     33 #include "modules/indexeddb/IDBDatabaseBackendInterface.h"
     34 #include "modules/indexeddb/IDBKey.h"
     35 #include "modules/indexeddb/IDBKeyPath.h"
     36 #include "public/platform/WebIDBCallbacks.h"
     37 #include "wtf/RefCounted.h"
     38 
     39 namespace WebCore {
     40 
     41 class DOMError;
     42 class IDBCursorBackendInterface;
     43 
     44 class IDBCallbacks : public RefCounted<IDBCallbacks> {
     45 public:
     46     virtual ~IDBCallbacks() { }
     47 
     48     virtual void onError(PassRefPtr<DOMError>) = 0;
     49     // From IDBFactory.webkitGetDatabaseNames()
     50     virtual void onSuccess(const Vector<String>&) = 0;
     51     // From IDBObjectStore/IDBIndex.openCursor(), IDBIndex.openKeyCursor()
     52     virtual void onSuccess(PassRefPtr<IDBCursorBackendInterface>, PassRefPtr<IDBKey>, PassRefPtr<IDBKey> primaryKey, PassRefPtr<SharedBuffer>) = 0;
     53     // From IDBObjectStore.add()/put(), IDBIndex.getKey()
     54     virtual void onSuccess(PassRefPtr<IDBKey>) = 0;
     55     // From IDBObjectStore/IDBIndex.get()/count(), and various methods that yield null/undefined.
     56     virtual void onSuccess(PassRefPtr<SharedBuffer>) = 0;
     57     // From IDBObjectStore/IDBIndex.get() (with key injection)
     58     virtual void onSuccess(PassRefPtr<SharedBuffer>, PassRefPtr<IDBKey>, const IDBKeyPath&) = 0;
     59     // From IDBObjectStore/IDBIndex.count()
     60     virtual void onSuccess(int64_t value) = 0;
     61 
     62     // From IDBFactor.deleteDatabase(), IDBObjectStore/IDBIndex.get(), IDBObjectStore.delete(), IDBObjectStore.clear()
     63     virtual void onSuccess() = 0;
     64 
     65     // From IDBCursor.advance()/continue()
     66     virtual void onSuccess(PassRefPtr<IDBKey>, PassRefPtr<IDBKey> primaryKey, PassRefPtr<SharedBuffer>) = 0;
     67     // From IDBFactory.open()/deleteDatabase()
     68     virtual void onBlocked(int64_t /* existingVersion */) { ASSERT_NOT_REACHED(); }
     69     // From IDBFactory.open()
     70     virtual void onUpgradeNeeded(int64_t /* oldVersion */, PassRefPtr<IDBDatabaseBackendInterface>, const IDBDatabaseMetadata&, WebKit::WebIDBCallbacks::DataLoss dataLoss) { ASSERT_NOT_REACHED(); }
     71     virtual void onSuccess(PassRefPtr<IDBDatabaseBackendInterface>, const IDBDatabaseMetadata&) { ASSERT_NOT_REACHED(); }
     72 };
     73 
     74 } // namespace WebCore
     75 
     76 #endif // IDBCallbacks_h
     77