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      1 /*
      2  * Copyright (C) 2011 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  *
     14  * THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND ANY
     15  * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
     16  * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
     17  * DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR ANY
     18  * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
     19  * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
     20  * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
     21  * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     22  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
     23  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     24  */
     25 
     26 #ifndef IDBVersionChangeEvent_h
     27 #define IDBVersionChangeEvent_h
     28 
     29 #include "bindings/core/v8/Nullable.h"
     30 #include "bindings/core/v8/SerializedScriptValue.h"
     31 #include "modules/EventModules.h"
     32 #include "modules/indexeddb/IDBAny.h"
     33 #include "modules/indexeddb/IDBRequest.h"
     34 #include "public/platform/WebIDBTypes.h"
     35 #include "wtf/PassRefPtr.h"
     36 #include "wtf/RefPtr.h"
     37 #include "wtf/text/WTFString.h"
     38 
     39 namespace blink {
     40 
     41 struct IDBVersionChangeEventInit : public EventInit {
     42     IDBVersionChangeEventInit();
     43 
     44     unsigned long long oldVersion;
     45     Nullable<unsigned long long> newVersion;
     46     String dataLoss;
     47 };
     48 
     49 class IDBVersionChangeEvent FINAL : public Event {
     50     DEFINE_WRAPPERTYPEINFO();
     51 public:
     52     static PassRefPtrWillBeRawPtr<IDBVersionChangeEvent> create()
     53     {
     54         return adoptRefWillBeNoop(new IDBVersionChangeEvent());
     55     }
     56     static PassRefPtrWillBeRawPtr<IDBVersionChangeEvent> create(const AtomicString& eventType, unsigned long long oldVersion, const Nullable<unsigned long long>& newVersion, WebIDBDataLoss dataLoss = WebIDBDataLossNone, const String& dataLossMessage = String())
     57     {
     58         return adoptRefWillBeNoop(new IDBVersionChangeEvent(eventType, oldVersion, newVersion, dataLoss, dataLossMessage));
     59     }
     60     static PassRefPtrWillBeRawPtr<IDBVersionChangeEvent> create(const AtomicString& eventType, const IDBVersionChangeEventInit& initializer)
     61     {
     62         return adoptRefWillBeNoop(new IDBVersionChangeEvent(eventType, initializer));
     63     }
     64 
     65     unsigned long long oldVersion() const { return m_oldVersion; }
     66     unsigned long long newVersion(bool& isNull) const;
     67 
     68     const AtomicString& dataLoss() const;
     69     const String& dataLossMessage() const { return m_dataLossMessage; }
     70 
     71     virtual const AtomicString& interfaceName() const OVERRIDE;
     72 
     73     virtual void trace(Visitor*) OVERRIDE;
     74 
     75 private:
     76     IDBVersionChangeEvent();
     77     IDBVersionChangeEvent(const AtomicString& eventType, unsigned long long oldVersion, const Nullable<unsigned long long>& newVersion, WebIDBDataLoss, const String& dataLoss);
     78     IDBVersionChangeEvent(const AtomicString& eventType, const IDBVersionChangeEventInit&);
     79 
     80     unsigned long long m_oldVersion;
     81     Nullable<unsigned long long> m_newVersion;
     82     WebIDBDataLoss m_dataLoss;
     83     String m_dataLossMessage;
     84 };
     85 
     86 } // namespace blink
     87 
     88 #endif // IDBVersionChangeEvent_h
     89