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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  *
     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 OptionsObject_h
     27 #define OptionsObject_h
     28 
     29 #include "PlatformString.h"
     30 #include <v8.h>
     31 
     32 namespace WebCore {
     33 
     34 class DOMStringList;
     35 class IDBKeyRange;
     36 
     37 class OptionsObject {
     38 public:
     39     OptionsObject();
     40     OptionsObject(const v8::Local<v8::Value>& options);
     41     ~OptionsObject();
     42 
     43     OptionsObject& operator=(const OptionsObject&);
     44 
     45     bool isUndefinedOrNull() const;
     46     bool getKeyBool(const String& key, bool& value) const;
     47     bool getKeyInt32(const String& key, int32_t& value) const;
     48     bool getKeyString(const String& key, String& value) const;
     49     PassRefPtr<DOMStringList> getKeyDOMStringList(const String& key) const;
     50     PassRefPtr<IDBKeyRange> getKeyKeyRange(const String& key) const;
     51 
     52 private:
     53     bool getKey(const String& key, v8::Local<v8::Value>&) const;
     54 
     55     // This object can only be used safely when stack allocated because of v8::Local.
     56     static void* operator new(size_t);
     57     static void* operator new[](size_t);
     58     static void operator delete(void *);
     59 
     60     v8::Local<v8::Value> m_options;
     61 };
     62 
     63 }
     64 
     65 #endif // OptionsObject_h
     66