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
36namespace blink {
37
38// Convert a V8 Value of any type (string, bool, object, etc) to a NPVariant.
39void 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.
43v8::Handle<v8::Value> convertNPVariantToV8Object(const NPVariant*, NPObject*, v8::Isolate*);
44
45// Helper function to create an NPN String Identifier from a v8 string.
46NPIdentifier getStringIdentifier(v8::Handle<v8::String>);
47
48// The ExceptionHandler will be notified of any exceptions thrown while
49// operating on a NPObject.
50typedef void (*ExceptionHandler)(void* data, const NPUTF8* message);
51void pushExceptionHandler(ExceptionHandler, void* data);
52void popExceptionHandler();
53
54// Upon destruction, an ExceptionCatcher will pass a caught exception to the
55// current ExceptionHandler.
56class ExceptionCatcher {
57public:
58    ExceptionCatcher();
59    ~ExceptionCatcher();
60private:
61    v8::TryCatch m_tryCatch;
62};
63
64} // namespace blink
65
66#endif // V8NPUtils_h
67