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: 6 * 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 12 * distribution. 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 21 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 22 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 23 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 24 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 25 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 26 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 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 #include <bindings/npruntime.h> 34 #include <v8.h> 35 36 namespace WebCore { 37 38 // Convert a V8 Value of any type (string, bool, object, etc) to a NPVariant. 39 void convertV8ObjectToNPVariant(v8::Local<v8::Value>, NPObject*, NPVariant*, v8::Isolate*); 40 41 // Convert a NPVariant (string, bool, object, etc) back to a V8 Value. The owner object is the NPObject which relates to the 42 // object, if the object is an Object. The created NPObject will be tied to the lifetime of the owner. 43 v8::Handle<v8::Value> convertNPVariantToV8Object(const NPVariant*, NPObject*, v8::Isolate*); 44 45 // Helper function to create an NPN String Identifier from a v8 string. 46 NPIdentifier getStringIdentifier(v8::Handle<v8::String>); 47 48 // The ExceptionHandler will be notified of any exceptions thrown while 49 // operating on a NPObject. 50 typedef void (*ExceptionHandler)(void* data, const NPUTF8* message); 51 void pushExceptionHandler(ExceptionHandler, void* data); 52 void popExceptionHandler(); 53 54 // Upon destruction, an ExceptionCatcher will pass a caught exception to the 55 // current ExceptionHandler. 56 class ExceptionCatcher { 57 public: 58 ExceptionCatcher(); 59 ~ExceptionCatcher(); 60 private: 61 v8::TryCatch m_tryCatch; 62 }; 63 64 } // namespace WebCore 65 66 #endif // V8NPUtils_h 67