1 /* Copyright (C) 2006, 2007, 2008, 2009 Google Inc. All rights reserved.

     2  *

     3  * Redistribution and use in source and binary forms, with or without

     4  * modification, are permitted provided that the following conditions are

     5  * met:

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     7  *     * Redistributions of source code must retain the above copyright

     8  * notice, this list of conditions and the following disclaimer.

     9  *     * Redistributions in binary form must reproduce the above

    10  * copyright notice, this list of conditions and the following disclaimer

    11  * in the documentation and/or other materials provided with the

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    13  *     * Neither the name of Google Inc. nor the names of its

    14  * contributors may be used to endorse or promote products derived from

    15  * this software without specific prior written permission.

    16  *

    17  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS

    18  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT

    19  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR

    20  * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT

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    22  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT

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    27  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

    28  */

    29 

    30 #ifndef V8NPUtils_h

    31 #define V8NPUtils_h

    32 

    33 #if PLATFORM(CHROMIUM)

    34 #include <bindings/npruntime.h>

    35 #else

    36 #include "npruntime.h"

    37 #endif

    38 

    39 #include <v8.h>

    40 

    41 namespace WebCore {

    42 

    43 // Convert a V8 Value of any type (string, bool, object, etc) to a NPVariant.

    44 void convertV8ObjectToNPVariant(v8::Local<v8::Value>, NPObject*, NPVariant*);

    45 

    46 // Convert a NPVariant (string, bool, object, etc) back to a V8 Value.  The owner object is the NPObject which relates to the

    47 // object, if the object is an Object.  The created NPObject will be tied to the lifetime of the owner.

    48 v8::Handle<v8::Value> convertNPVariantToV8Object(const NPVariant*, NPObject*);

    49 

    50 // Helper function to create an NPN String Identifier from a v8 string.

    51 NPIdentifier getStringIdentifier(v8::Handle<v8::String>);

    52 

    53 // The ExceptionHandler will be notified of any exceptions thrown while

    54 // operating on a NPObject.

    55 typedef void (*ExceptionHandler)(void* data, const NPUTF8* message);

    56 void pushExceptionHandler(ExceptionHandler, void* data);

    57 void popExceptionHandler();

    58 

    59 // Upon destruction, an ExceptionCatcher will pass a caught exception to the

    60 // current ExceptionHandler.

    61 class ExceptionCatcher {

    62 public:

    63     ExceptionCatcher();

    64     ~ExceptionCatcher();

    65 private:

    66     v8::TryCatch m_tryCatch;

    67 };

    68 

    69 } // namespace WebCore

    70 

    71 #endif // V8NPUtils_h