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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
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     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