Source/WebKit/Shared/Plugins/NPObjectProxy.cpp - WebKit - Git at Google

 /*
  * Copyright (C) 2010 Apple Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  * 1. Redistributions of source code must retain the above copyright
  *    notice, this list of conditions and the following disclaimer.
  * 2. Redistributions in binary form must reproduce the above copyright
  *    notice, this list of conditions and the following disclaimer in the
  *    documentation and/or other materials provided with the distribution.
  *
  * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS''
  * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
  * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
  * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS
  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
  * THE POSSIBILITY OF SUCH DAMAGE.
  */

 #include "config.h"
 #include "NPObjectProxy.h"

 #if ENABLE(NETSCAPE_PLUGIN_API)

 #include "ArgumentCoders.h"
 #include "Connection.h"
 #include "NPIdentifierData.h"
 #include "NPObjectMessageReceiverMessages.h"
 #include "NPRemoteObjectMap.h"
 #include "NPRuntimeUtilities.h"
 #include "NPVariantData.h"
 #include <wtf/MainThread.h>
 #include <wtf/RunLoop.h>

 namespace WebKit {

 NPObjectProxy* NPObjectProxy::create(NPRemoteObjectMap* npRemoteObjectMap, Plugin* plugin, uint64_t npObjectID)
 {
     NPObjectProxy* npObjectProxy = toNPObjectProxy(createNPObject(0, npClass()));
     npObjectProxy->initialize(npRemoteObjectMap, plugin, npObjectID);

     return npObjectProxy;
 }

 NPObjectProxy::NPObjectProxy()
     : m_npRemoteObjectMap(0)
     , m_plugin(0)
     , m_npObjectID(0)
 {
 }

 NPObjectProxy::~NPObjectProxy()
 {
     ASSERT(RunLoop::isMain());

     if (!m_npRemoteObjectMap)
         return;

     m_npRemoteObjectMap->npObjectProxyDestroyed(this);
     m_npRemoteObjectMap->connection()->sendSync(Messages::NPObjectMessageReceiver::Deallocate(), Messages::NPObjectMessageReceiver::Deallocate::Reply(), m_npObjectID);
 }

 bool NPObjectProxy::isNPObjectProxy(NPObject* npObject)
 {
     return npObject->_class == npClass();
 }

 void NPObjectProxy::invalidate()
 {
     ASSERT(m_npRemoteObjectMap);
     ASSERT(m_plugin);

     m_npRemoteObjectMap = 0;
     m_plugin = 0;
 }

 void NPObjectProxy::initialize(NPRemoteObjectMap* npRemoteObjectMap, Plugin* plugin, uint64_t npObjectID)
 {
     ASSERT(!m_npRemoteObjectMap);
     ASSERT(!m_plugin);
     ASSERT(!m_npObjectID);

     ASSERT(npRemoteObjectMap);
     ASSERT(plugin);
     ASSERT(npObjectID);

     m_npRemoteObjectMap = npRemoteObjectMap;
     m_plugin = plugin;
     m_npObjectID = npObjectID;
 }

 bool NPObjectProxy::hasMethod(NPIdentifier methodName)
 {
     if (!m_npRemoteObjectMap)
         return false;

     NPIdentifierData methodNameData = NPIdentifierData::fromNPIdentifier(methodName);

     bool returnValue = false;

     if (!m_npRemoteObjectMap->connection()->sendSync(Messages::NPObjectMessageReceiver::HasMethod(methodNameData), Messages::NPObjectMessageReceiver::HasMethod::Reply(returnValue), m_npObjectID))
         return false;

     return returnValue;
 }

 bool NPObjectProxy::invoke(NPIdentifier methodName, const NPVariant* arguments, uint32_t argumentCount, NPVariant* result)
 {
     if (!m_npRemoteObjectMap)
         return false;

     NPIdentifierData methodNameData = NPIdentifierData::fromNPIdentifier(methodName);
     Vector<NPVariantData> argumentsData;
     for (uint32_t i = 0; i < argumentCount; ++i)
         argumentsData.append(m_npRemoteObjectMap->npVariantToNPVariantData(arguments[i], m_plugin));

     bool returnValue = false;
     NPVariantData resultData;

     if (!m_npRemoteObjectMap->connection()->sendSync(Messages::NPObjectMessageReceiver::Invoke(methodNameData, argumentsData), Messages::NPObjectMessageReceiver::Invoke::Reply(returnValue, resultData), m_npObjectID))
         return false;

     if (!returnValue)
         return false;

     *result = m_npRemoteObjectMap->npVariantDataToNPVariant(resultData, m_plugin);
     return true;
 }

 bool NPObjectProxy::invokeDefault(const NPVariant* arguments, uint32_t argumentCount, NPVariant* result)
 {
     if (!m_npRemoteObjectMap)
         return false;

     Vector<NPVariantData> argumentsData;
     for (uint32_t i = 0; i < argumentCount; ++i)
         argumentsData.append(m_npRemoteObjectMap->npVariantToNPVariantData(arguments[i], m_plugin));

     bool returnValue = false;
     NPVariantData resultData;

     if (!m_npRemoteObjectMap->connection()->sendSync(Messages::NPObjectMessageReceiver::InvokeDefault(argumentsData), Messages::NPObjectMessageReceiver::InvokeDefault::Reply(returnValue, resultData), m_npObjectID))
         return false;

     if (!returnValue)
         return false;

     *result = m_npRemoteObjectMap->npVariantDataToNPVariant(resultData, m_plugin);
     return true;
 }

 bool NPObjectProxy::hasProperty(NPIdentifier propertyName)
 {
     if (!m_npRemoteObjectMap)
         return false;

     NPIdentifierData propertyNameData = NPIdentifierData::fromNPIdentifier(propertyName);

     bool returnValue = false;

     if (!m_npRemoteObjectMap->connection()->sendSync(Messages::NPObjectMessageReceiver::HasProperty(propertyNameData), Messages::NPObjectMessageReceiver::HasProperty::Reply(returnValue), m_npObjectID))
         return false;

     return returnValue;
 }

 bool NPObjectProxy::getProperty(NPIdentifier propertyName, NPVariant* result)
 {
     if (!m_npRemoteObjectMap)
         return false;

     NPIdentifierData propertyNameData = NPIdentifierData::fromNPIdentifier(propertyName);

     bool returnValue = false;
     NPVariantData resultData;

     if (!m_npRemoteObjectMap->connection()->sendSync(Messages::NPObjectMessageReceiver::GetProperty(propertyNameData), Messages::NPObjectMessageReceiver::GetProperty::Reply(returnValue, resultData), m_npObjectID))
         return false;

     if (!returnValue)
         return false;

     *result = m_npRemoteObjectMap->npVariantDataToNPVariant(resultData, m_plugin);
     return true;
 }

 bool NPObjectProxy::setProperty(NPIdentifier propertyName, const NPVariant* value)
 {
     if (!m_npRemoteObjectMap)
         return false;

     NPIdentifierData propertyNameData = NPIdentifierData::fromNPIdentifier(propertyName);
     NPVariantData propertyValueData = m_npRemoteObjectMap->npVariantToNPVariantData(*value, m_plugin);

     bool returnValue = false;

     if (!m_npRemoteObjectMap->connection()->sendSync(Messages::NPObjectMessageReceiver::SetProperty(propertyNameData, propertyValueData), Messages::NPObjectMessageReceiver::SetProperty::Reply(returnValue), m_npObjectID))
         return false;

     return returnValue;
 }

 bool NPObjectProxy::removeProperty(NPIdentifier propertyName)
 {
     if (!m_npRemoteObjectMap)
         return false;

     NPIdentifierData propertyNameData = NPIdentifierData::fromNPIdentifier(propertyName);

     bool returnValue = false;

     if (!m_npRemoteObjectMap->connection()->sendSync(Messages::NPObjectMessageReceiver::RemoveProperty(propertyNameData), Messages::NPObjectMessageReceiver::RemoveProperty::Reply(returnValue), m_npObjectID))
         return false;

     return returnValue;
 }

 bool NPObjectProxy::enumerate(NPIdentifier** identifiers, uint32_t* identifierCount)
 {
     if (!m_npRemoteObjectMap)
         return false;

     bool returnValue;
     Vector<NPIdentifierData> identifiersData;

     if (!m_npRemoteObjectMap->connection()->sendSync(Messages::NPObjectMessageReceiver::Enumerate(), Messages::NPObjectMessageReceiver::Enumerate::Reply(returnValue, identifiersData), m_npObjectID))
         return false;

     if (!returnValue)
         return false;

     NPIdentifier* nameIdentifiers = npnMemNewArray<NPIdentifier>(identifiersData.size());

     for (size_t i = 0; i < identifiersData.size(); ++i)
         nameIdentifiers[i] = identifiersData[i].createNPIdentifier();

     *identifiers = nameIdentifiers;
     *identifierCount = identifiersData.size();
     return true;
 }

 bool NPObjectProxy::construct(const NPVariant* arguments, uint32_t argumentCount, NPVariant* result)
 {
     if (!m_npRemoteObjectMap)
         return false;

     Vector<NPVariantData> argumentsData;
     for (uint32_t i = 0; i < argumentCount; ++i)
         argumentsData.append(m_npRemoteObjectMap->npVariantToNPVariantData(arguments[i], m_plugin));

     bool returnValue = false;
     NPVariantData resultData;

     if (!m_npRemoteObjectMap->connection()->sendSync(Messages::NPObjectMessageReceiver::Construct(argumentsData), Messages::NPObjectMessageReceiver::Construct::Reply(returnValue, resultData), m_npObjectID))
         return false;

     if (!returnValue)
         return false;

     *result = m_npRemoteObjectMap->npVariantDataToNPVariant(resultData, m_plugin);
     return true;
 }

 NPClass* NPObjectProxy::npClass()
 {
     static NPClass npClass = {
         NP_CLASS_STRUCT_VERSION,
         NP_Allocate,
         NP_Deallocate,
         0,
         NP_HasMethod,
         NP_Invoke,
         NP_InvokeDefault,
         NP_HasProperty,
         NP_GetProperty,
         NP_SetProperty,
         NP_RemoveProperty,
         NP_Enumerate,
         NP_Construct
     };

     return &npClass;
 }

 NPObject* NPObjectProxy::NP_Allocate(NPP npp, NPClass*)
 {
     ASSERT_UNUSED(npp, !npp);

     return new NPObjectProxy;
 }

 void NPObjectProxy::NP_Deallocate(NPObject* npObject)
 {
     // http://webkit.org/b/118535 - The Java Netscape Plug-in has a background thread do some of their NPP_Destroy work.
     // That background thread can call NP_Deallocate, and this leads to a WebProcess <-> PluginProcess deadlock.
     // Since NPAPI behavior on a background thread is undefined, it is okay to limit this workaround to the one API
     // that is known to be misused during plugin teardown, and to not be concerned about change in behavior if this
     // occured at any other time.
     ensureOnMainRunLoop([npObject] {
         delete toNPObjectProxy(npObject);
     });
 }

 bool NPObjectProxy::NP_HasMethod(NPObject* npObject, NPIdentifier methodName)
 {
     return toNPObjectProxy(npObject)->hasMethod(methodName);
 }

 bool NPObjectProxy::NP_Invoke(NPObject* npObject, NPIdentifier methodName, const NPVariant* arguments, uint32_t argumentCount, NPVariant* result)
 {
     return toNPObjectProxy(npObject)->invoke(methodName, arguments, argumentCount, result);
 }

 bool NPObjectProxy::NP_InvokeDefault(NPObject* npObject, const NPVariant* arguments, uint32_t argumentCount, NPVariant* result)
 {
     return toNPObjectProxy(npObject)->invokeDefault(arguments, argumentCount, result);
 }

 bool NPObjectProxy::NP_HasProperty(NPObject* npObject, NPIdentifier propertyName)
 {
     return toNPObjectProxy(npObject)->hasProperty(propertyName);
 }

 bool NPObjectProxy::NP_GetProperty(NPObject* npObject, NPIdentifier propertyName, NPVariant* result)
 {
     return toNPObjectProxy(npObject)->getProperty(propertyName, result);
 }

 bool NPObjectProxy::NP_SetProperty(NPObject* npObject, NPIdentifier propertyName, const NPVariant* value)
 {
     return toNPObjectProxy(npObject)->setProperty(propertyName, value);
 }

 bool NPObjectProxy::NP_RemoveProperty(NPObject* npObject, NPIdentifier propertyName)
 {
     return toNPObjectProxy(npObject)->removeProperty(propertyName);
 }

 bool NPObjectProxy::NP_Enumerate(NPObject* npObject, NPIdentifier** identifiers, uint32_t* identifierCount)
 {
     return toNPObjectProxy(npObject)->enumerate(identifiers, identifierCount);
 }

 bool NPObjectProxy::NP_Construct(NPObject* npObject, const NPVariant* arguments, uint32_t argumentCount, NPVariant* result)
 {
     return toNPObjectProxy(npObject)->construct(arguments, argumentCount, result);
 }

 } // namespace WebKit

 #endif // ENABLE(NETSCAPE_PLUGIN_API)
	/*
	* Copyright (C) 2010 Apple Inc. All rights reserved.
	*
	* Redistribution and use in source and binary forms, with or without
	* modification, are permitted provided that the following conditions
	* are met:
	* 1. Redistributions of source code must retain the above copyright
	* notice, this list of conditions and the following disclaimer.
	* 2. Redistributions in binary form must reproduce the above copyright
	* notice, this list of conditions and the following disclaimer in the
	* documentation and/or other materials provided with the distribution.
	*
	* THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS''
	* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
	* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
	* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS
	* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
	* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
	* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
	* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
	* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
	* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
	* THE POSSIBILITY OF SUCH DAMAGE.
	*/

	#include "config.h"
	#include "NPObjectProxy.h"

	#if ENABLE(NETSCAPE_PLUGIN_API)

	#include "ArgumentCoders.h"
	#include "Connection.h"
	#include "NPIdentifierData.h"
	#include "NPObjectMessageReceiverMessages.h"
	#include "NPRemoteObjectMap.h"
	#include "NPRuntimeUtilities.h"
	#include "NPVariantData.h"
	#include <wtf/MainThread.h>
	#include <wtf/RunLoop.h>

	namespace WebKit {

	NPObjectProxy* NPObjectProxy::create(NPRemoteObjectMap* npRemoteObjectMap, Plugin* plugin, uint64_t npObjectID)
	{
	NPObjectProxy* npObjectProxy = toNPObjectProxy(createNPObject(0, npClass()));
	npObjectProxy->initialize(npRemoteObjectMap, plugin, npObjectID);

	return npObjectProxy;
	}

	NPObjectProxy::NPObjectProxy()
	: m_npRemoteObjectMap(0)
	, m_plugin(0)
	, m_npObjectID(0)
	{
	}

	NPObjectProxy::~NPObjectProxy()
	{
	ASSERT(RunLoop::isMain());

	if (!m_npRemoteObjectMap)
	return;

	m_npRemoteObjectMap->npObjectProxyDestroyed(this);
	m_npRemoteObjectMap->connection()->sendSync(Messages::NPObjectMessageReceiver::Deallocate(), Messages::NPObjectMessageReceiver::Deallocate::Reply(), m_npObjectID);
	}

	bool NPObjectProxy::isNPObjectProxy(NPObject* npObject)
	{
	return npObject->_class == npClass();
	}

	void NPObjectProxy::invalidate()
	{
	ASSERT(m_npRemoteObjectMap);
	ASSERT(m_plugin);

	m_npRemoteObjectMap = 0;
	m_plugin = 0;
	}

	void NPObjectProxy::initialize(NPRemoteObjectMap* npRemoteObjectMap, Plugin* plugin, uint64_t npObjectID)
	{
	ASSERT(!m_npRemoteObjectMap);
	ASSERT(!m_plugin);
	ASSERT(!m_npObjectID);

	ASSERT(npRemoteObjectMap);
	ASSERT(plugin);
	ASSERT(npObjectID);

	m_npRemoteObjectMap = npRemoteObjectMap;
	m_plugin = plugin;
	m_npObjectID = npObjectID;
	}

	bool NPObjectProxy::hasMethod(NPIdentifier methodName)
	{
	if (!m_npRemoteObjectMap)
	return false;

	NPIdentifierData methodNameData = NPIdentifierData::fromNPIdentifier(methodName);

	bool returnValue = false;

	if (!m_npRemoteObjectMap->connection()->sendSync(Messages::NPObjectMessageReceiver::HasMethod(methodNameData), Messages::NPObjectMessageReceiver::HasMethod::Reply(returnValue), m_npObjectID))
	return false;

	return returnValue;
	}

	bool NPObjectProxy::invoke(NPIdentifier methodName, const NPVariant* arguments, uint32_t argumentCount, NPVariant* result)
	{
	if (!m_npRemoteObjectMap)
	return false;

	NPIdentifierData methodNameData = NPIdentifierData::fromNPIdentifier(methodName);
	Vector<NPVariantData> argumentsData;
	for (uint32_t i = 0; i < argumentCount; ++i)
	argumentsData.append(m_npRemoteObjectMap->npVariantToNPVariantData(arguments[i], m_plugin));

	bool returnValue = false;
	NPVariantData resultData;

	if (!m_npRemoteObjectMap->connection()->sendSync(Messages::NPObjectMessageReceiver::Invoke(methodNameData, argumentsData), Messages::NPObjectMessageReceiver::Invoke::Reply(returnValue, resultData), m_npObjectID))
	return false;

	if (!returnValue)
	return false;

	*result = m_npRemoteObjectMap->npVariantDataToNPVariant(resultData, m_plugin);
	return true;
	}

	bool NPObjectProxy::invokeDefault(const NPVariant* arguments, uint32_t argumentCount, NPVariant* result)
	{
	if (!m_npRemoteObjectMap)
	return false;

	Vector<NPVariantData> argumentsData;
	for (uint32_t i = 0; i < argumentCount; ++i)
	argumentsData.append(m_npRemoteObjectMap->npVariantToNPVariantData(arguments[i], m_plugin));

	bool returnValue = false;
	NPVariantData resultData;

	if (!m_npRemoteObjectMap->connection()->sendSync(Messages::NPObjectMessageReceiver::InvokeDefault(argumentsData), Messages::NPObjectMessageReceiver::InvokeDefault::Reply(returnValue, resultData), m_npObjectID))
	return false;

	if (!returnValue)
	return false;

	*result = m_npRemoteObjectMap->npVariantDataToNPVariant(resultData, m_plugin);
	return true;
	}

	bool NPObjectProxy::hasProperty(NPIdentifier propertyName)
	{
	if (!m_npRemoteObjectMap)
	return false;

	NPIdentifierData propertyNameData = NPIdentifierData::fromNPIdentifier(propertyName);

	bool returnValue = false;

	if (!m_npRemoteObjectMap->connection()->sendSync(Messages::NPObjectMessageReceiver::HasProperty(propertyNameData), Messages::NPObjectMessageReceiver::HasProperty::Reply(returnValue), m_npObjectID))
	return false;

	return returnValue;
	}

	bool NPObjectProxy::getProperty(NPIdentifier propertyName, NPVariant* result)
	{
	if (!m_npRemoteObjectMap)
	return false;

	NPIdentifierData propertyNameData = NPIdentifierData::fromNPIdentifier(propertyName);

	bool returnValue = false;
	NPVariantData resultData;

	if (!m_npRemoteObjectMap->connection()->sendSync(Messages::NPObjectMessageReceiver::GetProperty(propertyNameData), Messages::NPObjectMessageReceiver::GetProperty::Reply(returnValue, resultData), m_npObjectID))
	return false;

	if (!returnValue)
	return false;

	*result = m_npRemoteObjectMap->npVariantDataToNPVariant(resultData, m_plugin);
	return true;
	}

	bool NPObjectProxy::setProperty(NPIdentifier propertyName, const NPVariant* value)
	{
	if (!m_npRemoteObjectMap)
	return false;

	NPIdentifierData propertyNameData = NPIdentifierData::fromNPIdentifier(propertyName);
	NPVariantData propertyValueData = m_npRemoteObjectMap->npVariantToNPVariantData(*value, m_plugin);

	bool returnValue = false;

	if (!m_npRemoteObjectMap->connection()->sendSync(Messages::NPObjectMessageReceiver::SetProperty(propertyNameData, propertyValueData), Messages::NPObjectMessageReceiver::SetProperty::Reply(returnValue), m_npObjectID))
	return false;

	return returnValue;
	}

	bool NPObjectProxy::removeProperty(NPIdentifier propertyName)
	{
	if (!m_npRemoteObjectMap)
	return false;

	NPIdentifierData propertyNameData = NPIdentifierData::fromNPIdentifier(propertyName);

	bool returnValue = false;

	if (!m_npRemoteObjectMap->connection()->sendSync(Messages::NPObjectMessageReceiver::RemoveProperty(propertyNameData), Messages::NPObjectMessageReceiver::RemoveProperty::Reply(returnValue), m_npObjectID))
	return false;

	return returnValue;
	}

	bool NPObjectProxy::enumerate(NPIdentifier** identifiers, uint32_t* identifierCount)
	{
	if (!m_npRemoteObjectMap)
	return false;

	bool returnValue;
	Vector<NPIdentifierData> identifiersData;

	if (!m_npRemoteObjectMap->connection()->sendSync(Messages::NPObjectMessageReceiver::Enumerate(), Messages::NPObjectMessageReceiver::Enumerate::Reply(returnValue, identifiersData), m_npObjectID))
	return false;

	if (!returnValue)
	return false;

	NPIdentifier* nameIdentifiers = npnMemNewArray<NPIdentifier>(identifiersData.size());

	for (size_t i = 0; i < identifiersData.size(); ++i)
	nameIdentifiers[i] = identifiersData[i].createNPIdentifier();

	*identifiers = nameIdentifiers;
	*identifierCount = identifiersData.size();
	return true;
	}

	bool NPObjectProxy::construct(const NPVariant* arguments, uint32_t argumentCount, NPVariant* result)
	{
	if (!m_npRemoteObjectMap)
	return false;

	Vector<NPVariantData> argumentsData;
	for (uint32_t i = 0; i < argumentCount; ++i)
	argumentsData.append(m_npRemoteObjectMap->npVariantToNPVariantData(arguments[i], m_plugin));

	bool returnValue = false;
	NPVariantData resultData;

	if (!m_npRemoteObjectMap->connection()->sendSync(Messages::NPObjectMessageReceiver::Construct(argumentsData), Messages::NPObjectMessageReceiver::Construct::Reply(returnValue, resultData), m_npObjectID))
	return false;

	if (!returnValue)
	return false;

	*result = m_npRemoteObjectMap->npVariantDataToNPVariant(resultData, m_plugin);
	return true;
	}

	NPClass* NPObjectProxy::npClass()
	{
	static NPClass npClass = {
	NP_CLASS_STRUCT_VERSION,
	NP_Allocate,
	NP_Deallocate,
	0,
	NP_HasMethod,
	NP_Invoke,
	NP_InvokeDefault,
	NP_HasProperty,
	NP_GetProperty,
	NP_SetProperty,
	NP_RemoveProperty,
	NP_Enumerate,
	NP_Construct
	};

	return &npClass;
	}

	NPObject* NPObjectProxy::NP_Allocate(NPP npp, NPClass*)
	{
	ASSERT_UNUSED(npp, !npp);

	return new NPObjectProxy;
	}

	void NPObjectProxy::NP_Deallocate(NPObject* npObject)
	{
	// http://webkit.org/b/118535 - The Java Netscape Plug-in has a background thread do some of their NPP_Destroy work.
	// That background thread can call NP_Deallocate, and this leads to a WebProcess <-> PluginProcess deadlock.
	// Since NPAPI behavior on a background thread is undefined, it is okay to limit this workaround to the one API
	// that is known to be misused during plugin teardown, and to not be concerned about change in behavior if this
	// occured at any other time.
	ensureOnMainRunLoop([npObject] {
	delete toNPObjectProxy(npObject);
	});
	}

	bool NPObjectProxy::NP_HasMethod(NPObject* npObject, NPIdentifier methodName)
	{
	return toNPObjectProxy(npObject)->hasMethod(methodName);
	}

	bool NPObjectProxy::NP_Invoke(NPObject* npObject, NPIdentifier methodName, const NPVariant* arguments, uint32_t argumentCount, NPVariant* result)
	{
	return toNPObjectProxy(npObject)->invoke(methodName, arguments, argumentCount, result);
	}

	bool NPObjectProxy::NP_InvokeDefault(NPObject* npObject, const NPVariant* arguments, uint32_t argumentCount, NPVariant* result)
	{
	return toNPObjectProxy(npObject)->invokeDefault(arguments, argumentCount, result);
	}

	bool NPObjectProxy::NP_HasProperty(NPObject* npObject, NPIdentifier propertyName)
	{
	return toNPObjectProxy(npObject)->hasProperty(propertyName);
	}

	bool NPObjectProxy::NP_GetProperty(NPObject* npObject, NPIdentifier propertyName, NPVariant* result)
	{
	return toNPObjectProxy(npObject)->getProperty(propertyName, result);
	}

	bool NPObjectProxy::NP_SetProperty(NPObject* npObject, NPIdentifier propertyName, const NPVariant* value)
	{
	return toNPObjectProxy(npObject)->setProperty(propertyName, value);
	}

	bool NPObjectProxy::NP_RemoveProperty(NPObject* npObject, NPIdentifier propertyName)
	{
	return toNPObjectProxy(npObject)->removeProperty(propertyName);
	}

	bool NPObjectProxy::NP_Enumerate(NPObject* npObject, NPIdentifier** identifiers, uint32_t* identifierCount)
	{
	return toNPObjectProxy(npObject)->enumerate(identifiers, identifierCount);
	}

	bool NPObjectProxy::NP_Construct(NPObject* npObject, const NPVariant* arguments, uint32_t argumentCount, NPVariant* result)
	{
	return toNPObjectProxy(npObject)->construct(arguments, argumentCount, result);
	}

	} // namespace WebKit

	#endif // ENABLE(NETSCAPE_PLUGIN_API)