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  *

    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 WebIDBKey_h

    27 #define WebIDBKey_h

    28 

    29 #include "WebCommon.h"

    30 #include "WebPrivatePtr.h"

    31 #include "WebString.h"

    32 

    33 namespace WebCore { class IDBKey; }

    34 

    35 namespace WebKit {

    36 

    37 class WebIDBKey {

    38 public:

    39     ~WebIDBKey() { reset(); }

    40   

    41     WEBKIT_API static WebIDBKey createNull();

    42     WEBKIT_API static WebIDBKey createInvalid();

    43 

    44     WebIDBKey(const WebString& string) { assign(string); }

    45     WebIDBKey(int32_t number) { assign(number); }

    46     WebIDBKey(const WebIDBKey& e) { assign(e); }

    47     WebIDBKey& operator=(const WebIDBKey& e)

    48     {

    49         assign(e);

    50         return *this;

    51     }

    52 

    53     WEBKIT_API void assign(const WebIDBKey&);

    54     WEBKIT_API void assignNull();

    55     WEBKIT_API void assign(const WebString&);

    56     WEBKIT_API void assign(int32_t);

    57     WEBKIT_API void assignInvalid();

    58     WEBKIT_API void reset();

    59 

    60     enum Type {

    61         NullType = 0,

    62         StringType,

    63         NumberType,

    64         // Types not in WebCore::IDBKey:

    65         InvalidType

    66     };

    67 

    68     WEBKIT_API Type type() const;

    69     WEBKIT_API WebString string() const; // Only valid for StringType.

    70     WEBKIT_API int32_t number() const; // Only valid for numberType.

    71 

    72 #if WEBKIT_IMPLEMENTATION

    73     WebIDBKey(const WTF::PassRefPtr<WebCore::IDBKey>&);

    74     WebIDBKey& operator=(const WTF::PassRefPtr<WebCore::IDBKey>&);

    75     operator WTF::PassRefPtr<WebCore::IDBKey>() const;

    76 #endif

    77 

    78 private:

    79     WebIDBKey() { }

    80 

    81     WebPrivatePtr<WebCore::IDBKey> m_private;

    82 };

    83 

    84 } // namespace WebKit

    85 

    86 #endif // WebIDBKey_h