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1 /*
2  * Copyright (C) 2006, 2007, 2008, 2009 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 are
6  * met:
7  *
8  *     * Redistributions of source code must retain the above copyright
9  * notice, this list of conditions and the following disclaimer.
10  *     * Redistributions in binary form must reproduce the above
11  * copyright notice, this list of conditions and the following disclaimer
12  * in the documentation and/or other materials provided with the
13  * distribution.
14  *     * Neither the name of Google Inc. nor the names of its
15  * contributors may be used to endorse or promote products derived from
16  * this software without specific prior written permission.
17  *
18  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
19  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
20  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
21  * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
22  * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
23  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
24  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
25  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
26  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
27  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
28  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
29  */
30 
31 #ifndef V8NPObject_h
32 #define V8NPObject_h
33 
34 #if PLATFORM(CHROMIUM)
35 #include <bindings/npruntime.h>
36 #else
37 #include "npruntime_internal.h"
38 #endif
39 
40 #include <v8.h>
41 
42 namespace WebCore {
43 
44 // These functions can be replaced by normal JS operation.
45 // Getters
46 v8::Handle<v8::Value> npObjectNamedPropertyGetter(v8::Local<v8::String> name, const v8::AccessorInfo&);
47 v8::Handle<v8::Value> npObjectIndexedPropertyGetter(uint32_t index, const v8::AccessorInfo&);
48 v8::Handle<v8::Value> npObjectGetNamedProperty(v8::Local<v8::Object> self, v8::Local<v8::String> name);
49 v8::Handle<v8::Value> npObjectGetIndexedProperty(v8::Local<v8::Object> self, uint32_t index);
50 
51 // Setters
52 v8::Handle<v8::Value> npObjectNamedPropertySetter(v8::Local<v8::String> name, v8::Local<v8::Value>, const v8::AccessorInfo&);
53 v8::Handle<v8::Value> npObjectIndexedPropertySetter(uint32_t index, const v8::AccessorInfo&);
54 v8::Handle<v8::Value> npObjectSetNamedProperty(v8::Local<v8::Object> self, v8::Local<v8::String> name, v8::Local<v8::Value>);
55 v8::Handle<v8::Value> npObjectSetIndexedProperty(v8::Local<v8::Object> self, uint32_t index, v8::Local<v8::Value>);
56 
57 v8::Handle<v8::Value> npObjectInvokeDefaultHandler(const v8::Arguments&);
58 
59 // Get a wrapper for a NPObject.
60 // If the object is already wrapped, the pre-existing wrapper will be returned. If the object is not wrapped, wrap it, and
61 // give V8 a weak reference to the wrapper which will cleanup when there are no more JS references to the object.
62 v8::Local<v8::Object> createV8ObjectForNPObject(NPObject*, NPObject* root);
63 
64 // Tell V8 to forcibly remove an object.
65 // This is used at plugin teardown so that the caller can aggressively unload the plugin library. After calling this
66 // function, the persistent handle to the wrapper will be gone, and the wrapped NPObject will be removed so that it
67 // cannot be referred to.
68 void forgetV8ObjectForNPObject(NPObject*);
69 
70 } // namespace WebCore
71 
72 #endif // V8NPObject_h
73