plugins/npapi/npn_bindings.cc - gwt - Git at Google

 /* ***** BEGIN LICENSE BLOCK *****
  * Version: NPL 1.1/GPL 2.0/LGPL 2.1
  *
  * The contents of this file are subject to the Netscape Public License
  * Version 1.1 (the "License"); you may not use this file except in
  * compliance with the License. You may obtain a copy of the License at
  * http://www.mozilla.org/NPL/
  *
  * Software distributed under the License is distributed on an "AS IS" basis,
  * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
  * for the specific language governing rights and limitations under the
  * License.
  *
  * The Original Code is mozilla.org code.
  *
  * The Initial Developer of the Original Code is
  * Netscape Communications Corporation.
  * Portions created by the Initial Developer are Copyright (C) 1998
  * the Initial Developer. All Rights Reserved.
  *
  * Contributor(s):
  *
  * Alternatively, the contents of this file may be used under the terms of
  * either the GNU General Public License Version 2 or later (the "GPL"), or
  * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
  * in which case the provisions of the GPL or the LGPL are applicable instead
  * of those above. If you wish to allow use of your version of this file only
  * under the terms of either the GPL or the LGPL, and not to allow others to
  * use your version of this file under the terms of the NPL, indicate your
  * decision by deleting the provisions above and replace them with the notice
  * and other provisions required by the GPL or the LGPL. If you do not delete
  * the provisions above, a recipient may use your version of this file under
  * the terms of any one of the NPL, the GPL or the LGPL.
  *
  * ***** END LICENSE BLOCK ***** */

 ////////////////////////////////////////////////////////////
 //
 // Implementation of Netscape entry points (NPN_*), which are the functions
 // the plugin calls to talk to the browser.
 //

 #include "Debug.h"

 // Sun's cstring doesn't declare memcpy
 #include <string.h>
 //#include <cstring>

 #include "mozincludes.h"
 //#include "gears/base/common/base_class.h"
 //#include "gears/base/common/thread_locals.h"
 //#include "gears/base/npapi/module.h"

 #ifndef HIBYTE
 #define HIBYTE(x) ((((uint32)(x)) & 0xff00) >> 8)
 #endif

 #ifndef LOBYTE
 #define LOBYTE(W) ((W) & 0xFF)
 #endif

 static NPNetscapeFuncs npn_funcs;

 void SetNPNFuncs(NPNetscapeFuncs* npnFuncs) {
   // Since we can't rely on the pointer remaining valid, we need to
   // copy the function pointers.
   int size = sizeof(NPNetscapeFuncs);
   if (size > npnFuncs->size) {
     Debug::log(Debug::Warning) << "*** Warning: NPNetscapeFuncs supplied by "
         "browser is smaller than expected: " << npnFuncs->size << " vs " << size
         << Debug::flush;
     size = npnFuncs->size;
   }
   memcpy(&npn_funcs, npnFuncs, size);
 }

 const NPNetscapeFuncs &GetNPNFuncs() {
   return npn_funcs;
 }

 void NPN_Version(int* plugin_major, int* plugin_minor,
                  int* netscape_major, int* netscape_minor)
 {
   const NPNetscapeFuncs &funcs = GetNPNFuncs();
   *plugin_major   = NP_VERSION_MAJOR;
   *plugin_minor   = NP_VERSION_MINOR;
   *netscape_major = HIBYTE(funcs.version);
   *netscape_minor = LOBYTE(funcs.version);
 }

 NPError NPN_GetURLNotify(NPP instance, const char *url, const char *target,
                          void* notifyData)
 {
   const NPNetscapeFuncs &funcs = GetNPNFuncs();
   int navMinorVers = funcs.version & 0xFF;
   NPError rv = NPERR_NO_ERROR;

   if (navMinorVers >= NPVERS_HAS_NOTIFICATION)
     rv = funcs.geturlnotify(instance, url, target, notifyData);
   else
     rv = NPERR_INCOMPATIBLE_VERSION_ERROR;

   return rv;
 }

 NPError NPN_GetURL(NPP instance, const char *url, const char *target)
 {
   NPError rv = GetNPNFuncs().geturl(instance, url, target);
   return rv;
 }

 NPError NPN_PostURLNotify(NPP instance, const char* url, const char* window,
                           uint32 len, const char* buf, NPBool file,
                           void* notifyData)
 {
   const NPNetscapeFuncs &funcs = GetNPNFuncs();
   int navMinorVers = funcs.version & 0xFF;
   NPError rv = NPERR_NO_ERROR;

   if (navMinorVers >= NPVERS_HAS_NOTIFICATION) {
     rv = funcs.posturlnotify(instance, url, window, len, buf, file, notifyData);
   } else {
     rv = NPERR_INCOMPATIBLE_VERSION_ERROR;
   }

   return rv;
 }

 NPError NPN_PostURL(NPP instance, const char* url, const char* window,
                     uint32 len, const char* buf, NPBool file)
 {
   NPError rv = GetNPNFuncs().posturl(instance, url, window, len, buf, file);
   return rv;
 }

 NPError NPN_RequestRead(NPStream* stream, NPByteRange* rangeList)
 {
   NPError rv = GetNPNFuncs().requestread(stream, rangeList);
   return rv;
 }

 NPError NPN_NewStream(NPP instance, NPMIMEType type, const char* target,
                       NPStream** stream)
 {
   const NPNetscapeFuncs &funcs = GetNPNFuncs();
   int navMinorVersion = funcs.version & 0xFF;

   NPError rv = NPERR_NO_ERROR;

   if ( navMinorVersion >= NPVERS_HAS_STREAMOUTPUT )
     rv = funcs.newstream(instance, type, target, stream);
   else
     rv = NPERR_INCOMPATIBLE_VERSION_ERROR;

   return rv;
 }

 int32 NPN_Write(NPP instance, NPStream *stream, int32 len, void *buffer)
 {
   const NPNetscapeFuncs &funcs = GetNPNFuncs();
   int navMinorVersion = funcs.version & 0xFF;
   int32 rv = 0;

   if ( navMinorVersion >= NPVERS_HAS_STREAMOUTPUT )
     rv = funcs.write(instance, stream, len, buffer);
   else
     rv = -1;

   return rv;
 }

 NPError NPN_DestroyStream(NPP instance, NPStream* stream, NPError reason)
 {
   const NPNetscapeFuncs &funcs = GetNPNFuncs();
   int navMinorVersion = funcs.version & 0xFF;
   NPError rv = NPERR_NO_ERROR;

   if ( navMinorVersion >= NPVERS_HAS_STREAMOUTPUT )
     rv = funcs.destroystream(instance, stream, reason);
   else
     rv = NPERR_INCOMPATIBLE_VERSION_ERROR;

   return rv;
 }

 void NPN_Status(NPP instance, const char *message)
 {
   GetNPNFuncs().status(instance, message);
 }

 const char* NPN_UserAgent(NPP instance)
 {
   const char * rv = NULL;
   rv = GetNPNFuncs().uagent(instance);
   return rv;
 }

 void* NPN_MemAlloc(uint32 size)
 {
   void * rv = NULL;
   rv = GetNPNFuncs().memalloc(size);
   return rv;
 }

 void NPN_MemFree(void* ptr)
 {
   GetNPNFuncs().memfree(ptr);
 }

 uint32 NPN_MemFlush(uint32 size)
 {
   uint32 rv = GetNPNFuncs().memflush(size);
   return rv;
 }

 void NPN_ReloadPlugins(NPBool reloadPages)
 {
   GetNPNFuncs().reloadplugins(reloadPages);
 }

 NPError NPN_GetValue(NPP instance, NPNVariable variable, void *value)
 {
   NPError rv = GetNPNFuncs().getvalue(instance, variable, value);
   return rv;
 }

 NPError NPN_SetValue(NPP instance, NPPVariable variable, void *value)
 {
   NPError rv = GetNPNFuncs().setvalue(instance, variable, value);
   return rv;
 }

 void NPN_InvalidateRect(NPP instance, NPRect *invalidRect)
 {
   GetNPNFuncs().invalidaterect(instance, invalidRect);
 }

 void NPN_InvalidateRegion(NPP instance, NPRegion invalidRegion)
 {
   GetNPNFuncs().invalidateregion(instance, invalidRegion);
 }

 void NPN_ForceRedraw(NPP instance)
 {
   GetNPNFuncs().forceredraw(instance);
 }

 NPIdentifier NPN_GetStringIdentifier(const NPUTF8 *name)
 {
   return GetNPNFuncs().getstringidentifier(name);
 }

 void NPN_GetStringIdentifiers(const NPUTF8 **names, int32_t nameCount,
                               NPIdentifier *identifiers)
 {
   return GetNPNFuncs().getstringidentifiers(names, nameCount, identifiers);
 }

 NPIdentifier NPN_GetIntIdentifier(int32_t intid)
 {
   return GetNPNFuncs().getintidentifier(intid);
 }

 bool NPN_IdentifierIsString(NPIdentifier identifier)
 {
   return GetNPNFuncs().identifierisstring(identifier);
 }

 NPUTF8 *NPN_UTF8FromIdentifier(NPIdentifier identifier)
 {
   return GetNPNFuncs().utf8fromidentifier(identifier);
 }

 // On WebKit under OSX, the intfromidentifier field of the structure isn't
 // filled in (see WebNetscapePluginPackage.m#526 in WebKit source tree).
 // At this time this function isn't called from our code, so for now comment it
 // out.
 //
 int32_t NPN_IntFromIdentifier(NPIdentifier identifier)
 {
   return GetNPNFuncs().intfromidentifier(identifier);
 }

 NPObject *NPN_CreateObject(NPP npp, NPClass *aClass)
 {
   return GetNPNFuncs().createobject(npp, aClass);
 }

 NPObject *NPN_RetainObject(NPObject *obj)
 {
   return GetNPNFuncs().retainobject(obj);
 }

 void NPN_ReleaseObject(NPObject *obj)
 {
   return GetNPNFuncs().releaseobject(obj);
 }

 bool NPN_Invoke(NPP npp, NPObject* obj, NPIdentifier methodName,
                 const NPVariant *args, uint32_t argCount, NPVariant *result)
 {
   return GetNPNFuncs().invoke(npp, obj, methodName, args, argCount, result);
 }

 bool NPN_InvokeDefault(NPP npp, NPObject* obj, const NPVariant *args,
                        uint32_t argCount, NPVariant *result)
 {
   return GetNPNFuncs().invokeDefault(npp, obj, args, argCount, result);
 }

 bool NPN_Evaluate(NPP npp, NPObject* obj, NPString *script,
                   NPVariant *result)
 {
   return GetNPNFuncs().evaluate(npp, obj, script, result);
 }

 bool NPN_GetProperty(NPP npp, NPObject* obj, NPIdentifier propertyName,
                      NPVariant *result)
 {
 // Workaround for bug in WebKit: GetProperty() fails when attempting to
 // read a null value from an array, however it fills in the variant structure
 // correctly.
 // The workaround is to chek if GetProprety() touches the variant structure,
 // if so, we assume it succeeded.
 #ifdef BROWSER_WEBKIT
   result->type = static_cast<NPVariantType>(-1);

   bool ret = GetNPNFuncs().getproperty(npp, obj, propertyName, result);

   if (result->type != -1 && !ret) {
     ret = true;
   }
   return ret;
 #else
   return GetNPNFuncs().getproperty(npp, obj, propertyName, result);
 #endif
 }

 bool NPN_SetProperty(NPP npp, NPObject* obj, NPIdentifier propertyName,
                      const NPVariant *value)
 {
   return GetNPNFuncs().setproperty(npp, obj, propertyName, value);
 }

 bool NPN_RemoveProperty(NPP npp, NPObject* obj, NPIdentifier propertyName)
 {
   return GetNPNFuncs().removeproperty(npp, obj, propertyName);
 }

 #ifdef BROWSER_WEBKIT
 // This field of NPN functions isn't filled in by WebKit on OSX.
 #else
 bool NPN_HasProperty(NPP npp, NPObject* obj, NPIdentifier propertyName)
 {
   return GetNPNFuncs().hasproperty(npp, obj, propertyName);
 }
 #endif

 #ifdef BROWSER_WEBKIT
 // This field of NPN functions isn't filled in by WebKit on OSX.
 #else
 bool NPN_HasMethod(NPP npp, NPObject* obj, NPIdentifier methodName)
 {
   return GetNPNFuncs().hasmethod(npp, obj, methodName);
 }
 #endif

 void NPN_ReleaseVariantValue(NPVariant *variant)
 {
   GetNPNFuncs().releasevariantvalue(variant);
 }

 #ifdef BROWSER_WEBKIT
 // This function is buggy in WebKit, see
 // http://bugs.webkit.org/show_bug.cgi?id=16829
 #else
 void NPN_SetException(NPObject* obj, const NPUTF8 *message)
 {
   GetNPNFuncs().setexception(obj, message);
 }
 #endif
	/* *** BEGIN LICENSE BLOCK ***
	* Version: NPL 1.1/GPL 2.0/LGPL 2.1
	*
	* The contents of this file are subject to the Netscape Public License
	* Version 1.1 (the "License"); you may not use this file except in
	* compliance with the License. You may obtain a copy of the License at
	* http://www.mozilla.org/NPL/
	*
	* Software distributed under the License is distributed on an "AS IS" basis,
	* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
	* for the specific language governing rights and limitations under the
	* License.
	*
	* The Original Code is mozilla.org code.
	*
	* The Initial Developer of the Original Code is
	* Netscape Communications Corporation.
	* Portions created by the Initial Developer are Copyright (C) 1998
	* the Initial Developer. All Rights Reserved.
	*
	* Contributor(s):
	*
	* Alternatively, the contents of this file may be used under the terms of
	* either the GNU General Public License Version 2 or later (the "GPL"), or
	* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
	* in which case the provisions of the GPL or the LGPL are applicable instead
	* of those above. If you wish to allow use of your version of this file only
	* under the terms of either the GPL or the LGPL, and not to allow others to
	* use your version of this file under the terms of the NPL, indicate your
	* decision by deleting the provisions above and replace them with the notice
	* and other provisions required by the GPL or the LGPL. If you do not delete
	* the provisions above, a recipient may use your version of this file under
	* the terms of any one of the NPL, the GPL or the LGPL.
	*
	* *** END LICENSE BLOCK *** */

	////////////////////////////////////////////////////////////
	//
	// Implementation of Netscape entry points (NPN_*), which are the functions
	// the plugin calls to talk to the browser.
	//

	#include "Debug.h"

	// Sun's cstring doesn't declare memcpy
	#include <string.h>
	//#include <cstring>

	#include "mozincludes.h"
	//#include "gears/base/common/base_class.h"
	//#include "gears/base/common/thread_locals.h"
	//#include "gears/base/npapi/module.h"

	#ifndef HIBYTE
	#define HIBYTE(x) ((((uint32)(x)) & 0xff00) >> 8)
	#endif

	#ifndef LOBYTE
	#define LOBYTE(W) ((W) & 0xFF)
	#endif

	static NPNetscapeFuncs npn_funcs;

	void SetNPNFuncs(NPNetscapeFuncs* npnFuncs) {
	// Since we can't rely on the pointer remaining valid, we need to
	// copy the function pointers.
	int size = sizeof(NPNetscapeFuncs);
	if (size > npnFuncs->size) {
	Debug::log(Debug::Warning) << "*** Warning: NPNetscapeFuncs supplied by "
	"browser is smaller than expected: " << npnFuncs->size << " vs " << size
	<< Debug::flush;
	size = npnFuncs->size;
	}
	memcpy(&npn_funcs, npnFuncs, size);
	}

	const NPNetscapeFuncs &GetNPNFuncs() {
	return npn_funcs;
	}

	void NPN_Version(int* plugin_major, int* plugin_minor,
	int* netscape_major, int* netscape_minor)
	{
	const NPNetscapeFuncs &funcs = GetNPNFuncs();
	*plugin_major = NP_VERSION_MAJOR;
	*plugin_minor = NP_VERSION_MINOR;
	*netscape_major = HIBYTE(funcs.version);
	*netscape_minor = LOBYTE(funcs.version);
	}

	NPError NPN_GetURLNotify(NPP instance, const char url, const char target,
	void* notifyData)
	{
	const NPNetscapeFuncs &funcs = GetNPNFuncs();
	int navMinorVers = funcs.version & 0xFF;
	NPError rv = NPERR_NO_ERROR;

	if (navMinorVers >= NPVERS_HAS_NOTIFICATION)
	rv = funcs.geturlnotify(instance, url, target, notifyData);
	else
	rv = NPERR_INCOMPATIBLE_VERSION_ERROR;

	return rv;
	}

	NPError NPN_GetURL(NPP instance, const char url, const char target)
	{
	NPError rv = GetNPNFuncs().geturl(instance, url, target);
	return rv;
	}

	NPError NPN_PostURLNotify(NPP instance, const char* url, const char* window,
	uint32 len, const char* buf, NPBool file,
	void* notifyData)
	{
	const NPNetscapeFuncs &funcs = GetNPNFuncs();
	int navMinorVers = funcs.version & 0xFF;
	NPError rv = NPERR_NO_ERROR;

	if (navMinorVers >= NPVERS_HAS_NOTIFICATION) {
	rv = funcs.posturlnotify(instance, url, window, len, buf, file, notifyData);
	} else {
	rv = NPERR_INCOMPATIBLE_VERSION_ERROR;
	}

	return rv;
	}

	NPError NPN_PostURL(NPP instance, const char* url, const char* window,
	uint32 len, const char* buf, NPBool file)
	{
	NPError rv = GetNPNFuncs().posturl(instance, url, window, len, buf, file);
	return rv;
	}

	NPError NPN_RequestRead(NPStream* stream, NPByteRange* rangeList)
	{
	NPError rv = GetNPNFuncs().requestread(stream, rangeList);
	return rv;
	}

	NPError NPN_NewStream(NPP instance, NPMIMEType type, const char* target,
	NPStream** stream)
	{
	const NPNetscapeFuncs &funcs = GetNPNFuncs();
	int navMinorVersion = funcs.version & 0xFF;

	NPError rv = NPERR_NO_ERROR;

	if ( navMinorVersion >= NPVERS_HAS_STREAMOUTPUT )
	rv = funcs.newstream(instance, type, target, stream);
	else
	rv = NPERR_INCOMPATIBLE_VERSION_ERROR;

	return rv;
	}

	int32 NPN_Write(NPP instance, NPStream stream, int32 len, void buffer)
	{
	const NPNetscapeFuncs &funcs = GetNPNFuncs();
	int navMinorVersion = funcs.version & 0xFF;
	int32 rv = 0;

	if ( navMinorVersion >= NPVERS_HAS_STREAMOUTPUT )
	rv = funcs.write(instance, stream, len, buffer);
	else
	rv = -1;

	return rv;
	}

	NPError NPN_DestroyStream(NPP instance, NPStream* stream, NPError reason)
	{
	const NPNetscapeFuncs &funcs = GetNPNFuncs();
	int navMinorVersion = funcs.version & 0xFF;
	NPError rv = NPERR_NO_ERROR;

	if ( navMinorVersion >= NPVERS_HAS_STREAMOUTPUT )
	rv = funcs.destroystream(instance, stream, reason);
	else
	rv = NPERR_INCOMPATIBLE_VERSION_ERROR;

	return rv;
	}

	void NPN_Status(NPP instance, const char *message)
	{
	GetNPNFuncs().status(instance, message);
	}

	const char* NPN_UserAgent(NPP instance)
	{
	const char * rv = NULL;
	rv = GetNPNFuncs().uagent(instance);
	return rv;
	}

	void* NPN_MemAlloc(uint32 size)
	{
	void * rv = NULL;
	rv = GetNPNFuncs().memalloc(size);
	return rv;
	}

	void NPN_MemFree(void* ptr)
	{
	GetNPNFuncs().memfree(ptr);
	}

	uint32 NPN_MemFlush(uint32 size)
	{
	uint32 rv = GetNPNFuncs().memflush(size);
	return rv;
	}

	void NPN_ReloadPlugins(NPBool reloadPages)
	{
	GetNPNFuncs().reloadplugins(reloadPages);
	}

	NPError NPN_GetValue(NPP instance, NPNVariable variable, void *value)
	{
	NPError rv = GetNPNFuncs().getvalue(instance, variable, value);
	return rv;
	}

	NPError NPN_SetValue(NPP instance, NPPVariable variable, void *value)
	{
	NPError rv = GetNPNFuncs().setvalue(instance, variable, value);
	return rv;
	}

	void NPN_InvalidateRect(NPP instance, NPRect *invalidRect)
	{
	GetNPNFuncs().invalidaterect(instance, invalidRect);
	}

	void NPN_InvalidateRegion(NPP instance, NPRegion invalidRegion)
	{
	GetNPNFuncs().invalidateregion(instance, invalidRegion);
	}

	void NPN_ForceRedraw(NPP instance)
	{
	GetNPNFuncs().forceredraw(instance);
	}

	NPIdentifier NPN_GetStringIdentifier(const NPUTF8 *name)
	{
	return GetNPNFuncs().getstringidentifier(name);
	}

	void NPN_GetStringIdentifiers(const NPUTF8 **names, int32_t nameCount,
	NPIdentifier *identifiers)
	{
	return GetNPNFuncs().getstringidentifiers(names, nameCount, identifiers);
	}

	NPIdentifier NPN_GetIntIdentifier(int32_t intid)
	{
	return GetNPNFuncs().getintidentifier(intid);
	}

	bool NPN_IdentifierIsString(NPIdentifier identifier)
	{
	return GetNPNFuncs().identifierisstring(identifier);
	}

	NPUTF8 *NPN_UTF8FromIdentifier(NPIdentifier identifier)
	{
	return GetNPNFuncs().utf8fromidentifier(identifier);
	}

	// On WebKit under OSX, the intfromidentifier field of the structure isn't
	// filled in (see WebNetscapePluginPackage.m#526 in WebKit source tree).
	// At this time this function isn't called from our code, so for now comment it
	// out.
	//
	int32_t NPN_IntFromIdentifier(NPIdentifier identifier)
	{
	return GetNPNFuncs().intfromidentifier(identifier);
	}

	NPObject NPN_CreateObject(NPP npp, NPClass aClass)
	{
	return GetNPNFuncs().createobject(npp, aClass);
	}

	NPObject NPN_RetainObject(NPObject obj)
	{
	return GetNPNFuncs().retainobject(obj);
	}

	void NPN_ReleaseObject(NPObject *obj)
	{
	return GetNPNFuncs().releaseobject(obj);
	}

	bool NPN_Invoke(NPP npp, NPObject* obj, NPIdentifier methodName,
	const NPVariant args, uint32_t argCount, NPVariant result)
	{
	return GetNPNFuncs().invoke(npp, obj, methodName, args, argCount, result);
	}

	bool NPN_InvokeDefault(NPP npp, NPObject* obj, const NPVariant *args,
	uint32_t argCount, NPVariant *result)
	{
	return GetNPNFuncs().invokeDefault(npp, obj, args, argCount, result);
	}

	bool NPN_Evaluate(NPP npp, NPObject* obj, NPString *script,
	NPVariant *result)
	{
	return GetNPNFuncs().evaluate(npp, obj, script, result);
	}

	bool NPN_GetProperty(NPP npp, NPObject* obj, NPIdentifier propertyName,
	NPVariant *result)
	{
	// Workaround for bug in WebKit: GetProperty() fails when attempting to
	// read a null value from an array, however it fills in the variant structure
	// correctly.
	// The workaround is to chek if GetProprety() touches the variant structure,
	// if so, we assume it succeeded.
	#ifdef BROWSER_WEBKIT
	result->type = static_cast<NPVariantType>(-1);

	bool ret = GetNPNFuncs().getproperty(npp, obj, propertyName, result);

	if (result->type != -1 && !ret) {
	ret = true;
	}
	return ret;
	#else
	return GetNPNFuncs().getproperty(npp, obj, propertyName, result);
	#endif
	}

	bool NPN_SetProperty(NPP npp, NPObject* obj, NPIdentifier propertyName,
	const NPVariant *value)
	{
	return GetNPNFuncs().setproperty(npp, obj, propertyName, value);
	}

	bool NPN_RemoveProperty(NPP npp, NPObject* obj, NPIdentifier propertyName)
	{
	return GetNPNFuncs().removeproperty(npp, obj, propertyName);
	}

	#ifdef BROWSER_WEBKIT
	// This field of NPN functions isn't filled in by WebKit on OSX.
	#else
	bool NPN_HasProperty(NPP npp, NPObject* obj, NPIdentifier propertyName)
	{
	return GetNPNFuncs().hasproperty(npp, obj, propertyName);
	}
	#endif

	#ifdef BROWSER_WEBKIT
	// This field of NPN functions isn't filled in by WebKit on OSX.
	#else
	bool NPN_HasMethod(NPP npp, NPObject* obj, NPIdentifier methodName)
	{
	return GetNPNFuncs().hasmethod(npp, obj, methodName);
	}
	#endif

	void NPN_ReleaseVariantValue(NPVariant *variant)
	{
	GetNPNFuncs().releasevariantvalue(variant);
	}

	#ifdef BROWSER_WEBKIT
	// This function is buggy in WebKit, see
	// http://bugs.webkit.org/show_bug.cgi?id=16829
	#else
	void NPN_SetException(NPObject* obj, const NPUTF8 *message)
	{
	GetNPNFuncs().setexception(obj, message);
	}
	#endif