path: root/extensions/source/plugin/unx/npnapi.cxx

/*************************************************************************
 *
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 * 
 * Copyright 2000, 2010 Oracle and/or its affiliates.
 *
 * OpenOffice.org - a multi-platform office productivity suite
 *
 * This file is part of OpenOffice.org.
 *
 * OpenOffice.org is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Lesser General Public License version 3
 * only, as published by the Free Software Foundation.
 *
 * OpenOffice.org is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU Lesser General Public License version 3 for more details
 * (a copy is included in the LICENSE file that accompanied this code).
 *
 * You should have received a copy of the GNU Lesser General Public License
 * version 3 along with OpenOffice.org.  If not, see
 * <http://www.openoffice.org/license.html>
 * for a copy of the LGPLv3 License.
 *
 ************************************************************************/

// MARKER(update_precomp.py): autogen include statement, do not remove
#include "precompiled_extensions.hxx"
#include <plugin/unx/plugcon.hxx>

#include <unistd.h>
#include <dlfcn.h>

#include <osl/module.h>

extern PluginConnector* pConnector;
extern XtAppContext app_context;
extern int wakeup_fd[];
extern Widget topLevel, topBox;
extern Display* pAppDisplay;
extern Display* pXtAppDisplay;
extern int nAppArguments;
extern char** pAppArguments;

void* CreateNewShell( void**, XLIB_Window );

// begin Netscape plugin api calls
extern "C" {

static void* l_NPN_MemAlloc( uint32 nBytes )
{
    void* pMem = new char[nBytes];
    return pMem;
}
    
static void l_NPN_MemFree( void* pMem )
{
    delete [] (char*)pMem;
}
    
static uint32 l_NPN_MemFlush( uint32 /*nSize*/ )
{
    return 0;
}

static NPError l_NPN_DestroyStream( NPP instance, NPStream* stream, NPError reason )
{
    UINT32 nInstance = pConnector->GetNPPID( instance );
    if( nInstance == PluginConnector::UnknownNPPID )
        return NPERR_GENERIC_ERROR;
    
    UINT32 nFileID = pConnector->GetStreamID( stream );
    MediatorMessage* pMes=
        pConnector->
        Transact( eNPN_DestroyStream,
                  &nInstance, sizeof( nInstance ),
                  &nFileID, sizeof( nFileID ),
                  POST_STRING( stream->url ),
                  &reason, sizeof( reason ),
                  NULL );

    if( ! pMes )
        return NPERR_GENERIC_ERROR;

    for( std::vector< NPStream* >::iterator it = pConnector->getStreamList().begin();
         it != pConnector->getStreamList().end(); ++it )
    {
        if( *it == stream )
        {
            pConnector->getStreamList().erase( it );
            break;
        }
    }
    delete [] stream->url;
    delete stream;
    // returns NPError
    NPError aRet = pConnector->GetNPError( pMes );
    delete pMes;
    return aRet;
}

#ifdef OJI
static JRIEnv* l_NPN_GetJavaEnv()
{
    // no java in this program
    medDebug( 1, "SNI: NPN_GetJavaEnv\n" );
    return NULL;
}

static jref l_NPN_GetJavaPeer( NPP /*instance*/ )
{
    medDebug( 1, "SNI: NPN_GetJavaPeer\n" );
    return NULL;
}
#endif

static NPError l_NPN_GetURL( NPP instance, const char* url, const char* window )
{
    UINT32 nInstance = pConnector->GetNPPID( instance );
    if( nInstance == PluginConnector::UnknownNPPID )
        return NPERR_GENERIC_ERROR;
    
    MediatorMessage* pMes=
        pConnector->
        Transact( eNPN_GetURL,
                  &nInstance, sizeof( nInstance ),
                  POST_STRING(url),
                  POST_STRING(window),
                  NULL );	
    medDebug( !pMes, "geturl: message unaswered\n" );
    if( ! pMes )
        return NPERR_GENERIC_ERROR;

    // returns NPError
    NPError aRet = pConnector->GetNPError( pMes );
    medDebug( aRet, "geturl returns %d\n", (int)aRet );
    delete pMes;
    return aRet;
}

static NPError l_NPN_GetURLNotify( NPP instance, const char* url, const char* target,
                            void* notifyData )
{
    UINT32 nInstance = pConnector->GetNPPID( instance );
    if( nInstance == PluginConnector::UnknownNPPID )
        return NPERR_GENERIC_ERROR;

    MediatorMessage* pMes=
        pConnector->
        Transact( eNPN_GetURLNotify,
                  &nInstance, sizeof( nInstance ),
                  POST_STRING(url),
                  POST_STRING(target),
                  &notifyData, sizeof( void* ), // transmit the actual pointer
                  // since it is a pointer to private data fed back
                  // by NPP_URLNotify; this can be thought of as an ID
                  NULL );
    if( ! pMes )
        return NPERR_GENERIC_ERROR;

    // returns NPError
    NPError aRet = pConnector->GetNPError( pMes );
    delete pMes;
    return aRet;
}

static NPError l_NPN_NewStream( NPP instance, NPMIMEType type, const char* target,
                         NPStream** stream )
    // stream is a return value
{
    UINT32 nInstance = pConnector->GetNPPID( instance );
    if( nInstance == PluginConnector::UnknownNPPID )
        return NPERR_GENERIC_ERROR;

    MediatorMessage* pMes=
        pConnector->
        Transact( eNPN_NewStream,
                  &nInstance, sizeof( nInstance ),
                  POST_STRING(type),
                  POST_STRING(target),
                  NULL );
    if( ! pMes )
        return NPERR_GENERIC_ERROR;

    // returns a new NPStream and an error
    NPError aRet = pConnector->GetNPError( pMes );
    if( ! aRet )
    {
        NPStream* pStream = new NPStream;
        pStream->url = pMes->GetString();
        pStream->end = pMes->GetUINT32();
        pStream->lastmodified = pMes->GetUINT32();
        pStream->ndata = pStream->pdata = pStream->notifyData = NULL;
        
        pConnector->getStreamList().push_back( pStream );
        *stream = pStream;
    }

    delete pMes;
    return aRet;
}

static NPError l_NPN_PostURLNotify( NPP instance, const char* url, const char* target, uint32 len, const char* buf, NPBool file, void* notifyData )
{
    UINT32 nInstance = pConnector->GetNPPID( instance );
    if( nInstance == PluginConnector::UnknownNPPID )
        return NPERR_GENERIC_ERROR;

    MediatorMessage* pMes = pConnector->
        Transact( eNPN_PostURLNotify,
                  &nInstance, sizeof( nInstance ),
                  POST_STRING( url ),
                  POST_STRING( target ),
                  &len, sizeof( len ),
                  buf, len,
                  &file, sizeof( NPBool ),
                  &notifyData, sizeof( void* ), // send the real pointer
                  NULL );

    if( ! pMes )
        return NPERR_GENERIC_ERROR;

    NPError aRet = pConnector->GetNPError( pMes );
    delete pMes;
    return aRet;
}

static NPError l_NPN_PostURL( NPP instance, const char* url, const char* window, uint32 len, const char* buf, NPBool file )
{
    UINT32 nInstance = pConnector->GetNPPID( instance );
    if( nInstance == PluginConnector::UnknownNPPID )
        return NPERR_GENERIC_ERROR;

    MediatorMessage* pMes = pConnector->
        Transact( eNPN_PostURL,
                  &nInstance, sizeof( nInstance ),
                  POST_STRING( url ),
                  POST_STRING( window ),
                  &len, sizeof( len ),
                  buf, len,
                  &file, sizeof( NPBool ),
                  NULL );
    if( ! pMes )
        return NPERR_GENERIC_ERROR;

    NPError aRet = pConnector->GetNPError( pMes );
    delete pMes;
    return aRet;
}

static NPError l_NPN_RequestRead( NPStream* stream, NPByteRange* rangeList )
{
    medDebug( 1, "pluginapp: NPN_RequestRead\n" );

    NPByteRange* pRange = rangeList;
    UINT32 nRanges = 0;
    while( pRange )
    {
        nRanges++;
        pRange = pRange->next;
    }
    
    UINT32* pArray = new UINT32[ 2 * nRanges ];
    pRange = rangeList;
    UINT32 n = 0;
    while( pRange )
    {
        pArray[ 2*n    ] = (UINT32)pRange->offset;
        pArray[ 2*n + 1] = (UINT32)pRange->length;
        n++;
        pRange = pRange->next;
    }
    UINT32 nFileID = pConnector->GetStreamID( stream );
    MediatorMessage* pMes = pConnector->
        Transact( eNPN_RequestRead,
                  &nFileID, sizeof( nFileID ),
                  &nRanges, sizeof( nRanges ),
                  pArray, sizeof( UINT32 ) * 2 * nRanges,
                  NULL );

    if( ! pMes )
        return NPERR_GENERIC_ERROR;

    NPError aRet = pConnector->GetNPError( pMes );
    delete [] pArray;
    delete pMes;
    return aRet;
}

static void l_NPN_Status( NPP instance, const char* message )
{
    UINT32 nInstance = pConnector->GetNPPID( instance );
    if( nInstance == PluginConnector::UnknownNPPID )
        return;

    pConnector->Send( eNPN_Status,
                      &nInstance, sizeof( nInstance ),
                      POST_STRING( message ),
                      NULL ); 
}

static const char* l_NPN_UserAgent( NPP instance )
{
    static char* pAgent = NULL;

    UINT32 nInstance = pConnector->GetNPPID( instance );
    if( nInstance == PluginConnector::UnknownNPPID )
    {
        if( instance )
            return "Mozilla 3.0";
        else // e.g. flashplayer calls NPN_UserAgent with NULL
            nInstance = 0;
    }

    MediatorMessage* pMes = pConnector->
        Transact( eNPN_UserAgent,
                  &nInstance, sizeof( nInstance ),
                  NULL );

    if( ! pMes )
        return pAgent;

    if( pAgent )
        delete [] pAgent;
    pAgent = pMes->GetString();

    delete pMes;

    medDebug( 1, "NPN_UserAgent returns %s\n", pAgent );

    return pAgent;
}

#if 0
static void l_NPN_Version( int* major, int* minor, int* net_major, int* net_minor )
{
    MediatorMessage* pMes = pConnector->
        Transact( eNPN_Version,
                  NULL );

    if( ! pMes )
        return;

    *major = pMes->GetUINT32();
    *minor = pMes->GetUINT32();
    *net_major = pMes->GetUINT32();
    *net_minor = pMes->GetUINT32();

    medDebug( 1, "pluginapp: NPN_Version: results %d %d, %d %d\n", *major, *minor, *net_major, *net_minor );

    delete pMes;
}
#endif

static int32 l_NPN_Write( NPP instance, NPStream* stream, int32 len, void* buffer )
{
    UINT32 nFileID = pConnector->GetStreamID( stream );
    if( nFileID == PluginConnector::UnknownStreamID )
        return NPERR_GENERIC_ERROR;
    UINT32 nInstance = pConnector->GetNPPID( instance );
    if( nInstance == PluginConnector::UnknownNPPID )
        return NPERR_GENERIC_ERROR;

    MediatorMessage* pMes = pConnector->
        Transact( eNPN_Write,
                  &nInstance, sizeof( nInstance ),
                  &nFileID, sizeof( nFileID ),
                  &len, sizeof( len ),
                  buffer, len,
                  NULL );

    if( ! pMes )
        return 0;

    INT32 nRet = pMes->GetUINT32();
    return nRet;  
}

static void l_NPN_ReloadPlugins( NPBool /*reloadPages*/ )
{
    medDebug( 1, "NPN_ReloadPlugins: SNI\n" );
}

static NPError l_NPN_GetValue( NPP, NPNVariable variable, void* value )
{
    /*
     * We want to handle values injected into a NPNVariable which aren't in
     * the old enum we build against, but that we know are in the new enum
     * we want to support
         */
    switch( (int)variable )
    {
        case NPNVxDisplay:
            *((Display**)value) = pXtAppDisplay;
            medDebug( 1, "Display requested\n" );
            break;
        case NPNVxtAppContext:
            *((XtAppContext*)value) = app_context;
            medDebug( 1, "AppContext requested\n" );
            break;
        case NPNVjavascriptEnabledBool:
            // no javascript
            *(NPBool*)value = false;
            medDebug( 1, "javascript enabled requested\n" );
            break;
        case NPNVasdEnabledBool:
            // no SmartUpdate
            *(NPBool*)value = false;
            medDebug( 1, "smart update enabled requested\n" );
            break;
        case NPNVisOfflineBool:
            // no offline browsing
            *(NPBool*)value = false;
            medDebug( 1, "offline browsing requested\n" );
            break;
        case NPNVSupportsXEmbedBool:
            // asking xembed
            *(int*)value = true;
            medDebug( 1, "xembed requested\n" );
            break;
        case NPNVToolkit:
#           ifdef ENABLE_GTK
            *(int*)value = NPNVGtk2;
#           else
            *(int*)value = 0;
#           endif
            medDebug( 1, "toolkit requested\n" );
            break;
        default:
            medDebug( 1, "unknown NPNVariable %x requested\n", variable );
            return NPERR_INVALID_PARAM;
    }
    return NPERR_NO_ERROR;
}

static NPError l_NPN_SetValue(NPP /*instance*/, NPPVariable variable, void *value)
{
    medDebug( 1, "NPN_SetValue %d=%p\n", variable, value );
    return 0;
}

static void l_NPN_InvalidateRect(NPP /*instance*/, NPRect* /*invalidRect*/)
{
    medDebug( 1, "NPN_InvalidateRect\n" );
}

static void l_NPN_InvalidateRegion(NPP /*instance*/, NPRegion /*invalidRegion*/)
{
    medDebug( 1, "NPN_InvalidateRegion\n" );
}

static void l_NPN_ForceRedraw(NPP /*instance*/)
{
    medDebug( 1, "NPN_ForceRedraw\n" );
}

}

static NPNetscapeFuncs aNetscapeFuncs =
{
    sizeof(aNetscapeFuncs),
    (NP_VERSION_MAJOR << 8) | NP_VERSION_MINOR,
    l_NPN_GetURL,
    l_NPN_PostURL,
    l_NPN_RequestRead,
    l_NPN_NewStream,
    l_NPN_Write,
    l_NPN_DestroyStream,
    l_NPN_Status,
    l_NPN_UserAgent,
    l_NPN_MemAlloc,
    l_NPN_MemFree,
    l_NPN_MemFlush,
    l_NPN_ReloadPlugins,
#   ifdef OJI
    l_NPN_GetJavaEnv,
    l_NPN_GetJavaPeer,
#   else
    NULL,
    NULL,
#   endif
    l_NPN_GetURLNotify,
    l_NPN_PostURLNotify,
    l_NPN_GetValue,
    l_NPN_SetValue,
    l_NPN_InvalidateRect,
    l_NPN_InvalidateRegion,
    l_NPN_ForceRedraw
};

static NPPluginFuncs aPluginFuncs =
{
    sizeof(aPluginFuncs),
    (NP_VERSION_MAJOR << 8) | NP_VERSION_MINOR,
    NULL,
    NULL,
    NULL,
    NULL,
    NULL,
    NULL,
    NULL,
    NULL,
    NULL,
    NULL,
    NULL,
    NULL,
    NULL,
    NULL
};


oslModule pPluginLib = NULL;
char*(*pNPP_GetMIMEDescription)()								= NULL;
NPError (*pNP_Initialize)(NPNetscapeFuncs*,NPPluginFuncs*)		= NULL;
NPError (*pNP_Shutdown)()										= NULL;

std::vector< PluginConnector* > PluginConnector::allConnectors;

PluginConnector::PluginConnector( int nSocket ) :
        Mediator( nSocket )
{
    SetNewMessageHdl( LINK( this, PluginConnector, NewMessageHdl ) );
}

PluginConnector::~PluginConnector()
{
}

IMPL_LINK( PluginConnector, WorkOnNewMessageHdl, Mediator*, /*pMediator*/ )
{
    MediatorMessage* pMessage;
    CommandAtoms nCommand;
    while( (pMessage = GetNextMessage( FALSE )) )
    {
        nCommand = (CommandAtoms)pMessage->GetUINT32();
        medDebug( 1, "pluginapp: %s\n", GetCommandName( nCommand ) );
        switch( nCommand )
        {
            case eNPP_DestroyStream:
            {
                UINT32 nInstance	= pMessage->GetUINT32();
                NPP instance		= m_aInstances[ nInstance ]->instance;
                UINT32 nFileID		= pMessage->GetUINT32();
                NPStream* pStream	= m_aNPWrapStreams[ nFileID ];
                NPError aReason		= GetNPError( pMessage );
                m_aNPWrapStreams.erase( m_aNPWrapStreams.begin() + nFileID );

                aReason = aPluginFuncs.destroystream( instance, pStream, aReason );
                Respond( pMessage->m_nID,
                         (char*)&aReason, sizeof( aReason ),
                         NULL );

                delete [] pStream->url;
                delete pStream;
            }
            break;
            case eNPP_Destroy:
            {
                UINT32 nInstance	= pMessage->GetUINT32();
                ConnectorInstance* pInst= m_aInstances[ nInstance ];

                // some plugin rely on old netscapes behaviour
                // to first destroy the widget and then destroy
                // the instance, so mimic that behaviour here
                if( pInst->pShell )
                    XtDestroyWidget( (Widget)pInst->pShell );
                
                pInst->pWidget = pInst->pShell = NULL;
                
                // the other side will call eNPP_DestroyPhase2 after this
                NPError aReason = NPERR_NO_ERROR;
                Respond( pMessage->m_nID, (char*)&aReason, sizeof( aReason ), NULL );
            }
            break;
            case eNPP_DestroyPhase2:
            {
                // now really destroy the instance
                UINT32 nInstance	= pMessage->GetUINT32();
                ConnectorInstance* pInst= m_aInstances[ nInstance ];
                NPP instance		= pInst->instance;
                NPSavedData* pSave = NULL;

                NPError aRet = aPluginFuncs.destroy( instance, &pSave );
                if( pSave )
                {
                    Respond( pMessage->m_nID,
                             (char*)&aRet, sizeof( aRet ),
                             pSave->buf, pSave->len,
                             NULL );
                    delete [] (char*)pSave->buf;
                }
                else
                    Respond( pMessage->m_nID,
                             (char*)&aRet, sizeof( aRet ),
                             "0000", 4,
                             NULL );

                #ifdef ENABLE_GTK
                if( pInst->pGtkWindow )
                    g_object_unref( G_OBJECT(pInst->pGtkWindow) );
                if( pInst->pGtkWidget )
                    g_object_unref( G_OBJECT(pInst->pGtkWidget) );
                #endif

                m_aInstances.erase( m_aInstances.begin() + nInstance );
                delete pInst;
                delete instance;
                medDebug( 1, "destroyed instance (returning %d)\n", aRet );
            }
            break;
            case eNPP_NewStream:
            {
                UINT32 nInstance		= pMessage->GetUINT32();
                NPP instance			= m_aInstances[ nInstance ]->instance;
                char* pType				= pMessage->GetString();
                NPStream* pStream		= new NPStream;
                pStream->url			= pMessage->GetString();
                pStream->end			= pMessage->GetUINT32();
                pStream->lastmodified	= pMessage->GetUINT32();
                pStream->pdata = pStream->ndata = pStream->notifyData = NULL;
                NPBool* pSeekable		= (NPBool*)pMessage->GetBytes();
                m_aNPWrapStreams.push_back( pStream );
                uint16 nStype = NP_ASFILE;
                NPError aRet = aPluginFuncs.newstream( instance, pType, pStream,
                                                       *pSeekable, &nStype );
                medDebug( 1, "pluginapp: NPP_NewStream( %p, %s, %p, %s, %p ) returns %d\n"
                          "stream = { pdata = %p, ndata = %p, url = %s, end = %d, lastmodified = %d, notifyData = %p }\n",
                          instance, pType, pStream, *pSeekable ? "seekable" : "not seekable", &nStype, (int)aRet,
                          pStream->pdata, pStream->ndata, pStream->url, pStream->end, pStream->lastmodified, pStream->notifyData );
                Respond( pMessage->m_nID,
                         (char*)&aRet, sizeof( aRet ),
                         &nStype, sizeof( nStype ),
                         NULL );
                delete [] pType;
                delete [] pSeekable;
            }
            break;
            case eNPP_New:
            {
                char* pType		= pMessage->GetString();
                uint16* pMode	= (uint16*)pMessage->GetBytes();
                int16*  pArgc	= (int16*)pMessage->GetBytes();
                NPP instance	= new NPP_t;
                instance->pdata = instance->ndata = NULL;
                ULONG nArgnBytes, nArgvBytes;
                char* pArgn = (char*)pMessage->GetBytes( nArgnBytes );
                char* pArgv = (char*)pMessage->GetBytes( nArgvBytes );
                ULONG nSaveBytes;
                char* pSavedData = (char*)pMessage->GetBytes( nSaveBytes );
                ConnectorInstance* pInst =
                    new ConnectorInstance( instance, pType,
                                           *pArgc,
                                           pArgn, nArgnBytes,
                                           pArgv, nArgvBytes,
                                           pSavedData, nSaveBytes );
                m_aInstances.push_back( pInst );
                NPError aRet;
                aRet = aPluginFuncs.newp( pInst->pMimeType, instance, *pMode, *pArgc,
                                          pInst->nArg ? pInst->argn : NULL,
                                          pInst->nArg ? pInst->argv : NULL,
                                          ( nSaveBytes == 4 && *(UINT32*)pSavedData == 0 ) ?
                                          &(pInst->aData) : NULL );
                medDebug( 1, "pluginapp: NPP_New( %s, %p, %d, %d, %p, %p, %p ) returns %d\n",
                          pInst->pMimeType,
                          instance, *pMode, pInst->nArg, pInst->argn, pInst->argv, &pInst->aData,
                          (int) aRet );
#if OSL_DEBUG_LEVEL > 1
                for( int i = 0; i < pInst->nArg; i++ )
                    medDebug( 1, "   \"%s\"=\"%s\"\n", pInst->argn[i], pInst->argv[i] );
#endif

                #ifdef ENABLE_GTK
                // check if XEMBED is to be used
                // ask for Bool. there seems to be no clear definition whether the
                // return value should be an int or unsigned char
                // int can hold both and will be nonzero in case of "true"
                if( aPluginFuncs.getvalue )
                {
                    int bNeedsXEmbed = 0;
                    NPError error = aPluginFuncs.getvalue( instance, NPPVpluginNeedsXEmbed, (void *)&bNeedsXEmbed );
                    if( error == NPERR_NO_ERROR )
                        pInst->bShouldUseXEmbed = (bNeedsXEmbed != 0);
                    medDebug( 1, "should use xembed = %s\n", pInst->bShouldUseXEmbed ? "true" : "false" );
                }
                #endif
                
                Respond( pMessage->m_nID,
                         (char*)&aRet, sizeof( aRet ),
                         NULL );
                delete [] pMode;
                delete [] pArgc;
                delete [] pType;
            }
            break;
            case eNPP_SetWindow:
            {
                UINT32 nInstance		= pMessage->GetUINT32();
                ConnectorInstance* pInst= m_aInstances[ nInstance ];
                NPWindow* pWindow		= (NPWindow*)pMessage->GetBytes();
                
                if( pWindow->width < 1 )
                    pWindow->width = 1;
                if( pWindow->height < 1 )
                    pWindow->height = 1;

                #ifdef ENABLE_GTK
                if( pInst->bShouldUseXEmbed )
                {
                    if( ! pInst->pGtkWidget )
                    {
                        medDebug( 1, "creating gtk plug and socket\n" );
                        
                        pInst->pGtkWindow = gtk_plug_new((GdkNativeWindow)reinterpret_cast<sal_uIntPtr>(pWindow->window));
                        gtk_widget_show( pInst->pGtkWindow );
                        pInst->pGtkWidget = gtk_socket_new();
                        gtk_widget_show( pInst->pGtkWidget );
                        gtk_container_add( GTK_CONTAINER(pInst->pGtkWindow), pInst->pGtkWidget );
                        gtk_widget_show_all( pInst->pGtkWindow );
                        pInst->window.window = (void *)gtk_socket_get_id( GTK_SOCKET(pInst->pGtkWidget ) );

                        XSync( pAppDisplay, False );

                        XMapWindow( pAppDisplay, GDK_WINDOW_XWINDOW(pInst->pGtkWindow->window) );

                        XSync( pAppDisplay, False );
                    }
                    
                    // update widget size; alas out parent is not yet really XEMBED conformant
                    gtk_widget_set_size_request( pInst->pGtkWidget, pWindow->width, pWindow->height );
                    gtk_window_resize( GTK_WINDOW(pInst->pGtkWindow), pWindow->width, pWindow->height );
                    
                    GdkScreen* pGdkScreen = gtk_widget_get_screen( pInst->pGtkWidget );
                    Screen* pScreen = ScreenOfDisplay( pAppDisplay, gdk_screen_get_number( pGdkScreen ) );

                    pInst->window.x					= 0;
                    pInst->window.y					= 0;
                    pInst->window.width				= pWindow->width;
                    pInst->window.height			= pWindow->height;
                    pInst->window.clipRect.left		= 0;
                    pInst->window.clipRect.top		= 0;
                    pInst->window.clipRect.right	= pWindow->width;
                    pInst->window.clipRect.bottom	= pWindow->height;
                    pInst->window.ws_info			= &pInst->ws_info;
                    pInst->window.type				= NPWindowTypeWindow;
                    pInst->ws_info.type				= NP_SETWINDOW;
                    pInst->ws_info.display			= pAppDisplay;
                    pInst->ws_info.visual			= DefaultVisualOfScreen( pScreen );
                    pInst->ws_info.colormap			= DefaultColormapOfScreen( pScreen );
                    pInst->ws_info.depth			= DefaultDepthOfScreen( pScreen );
                }
                else
                #endif
                {
                    if( ! pInst->pWidget )
                    {
                        pInst->pWidget = CreateNewShell( &(pInst->pShell), (XLIB_Window)pWindow->window );					
                    }
    
                    // fill in NPWindow and NPCallbackStruct
                    pInst->window.window			= (void*)XtWindow( (Widget)pInst->pWidget );
                    pInst->window.x					= 0;
                    pInst->window.y					= 0;
                    pInst->window.width				= pWindow->width;
                    pInst->window.height			= pWindow->height;
                    pInst->window.clipRect.left		= 0;
                    pInst->window.clipRect.top		= 0;
                    pInst->window.clipRect.right	= pWindow->width;
                    pInst->window.clipRect.bottom	= pWindow->height;
                    pInst->window.ws_info			= &pInst->ws_info;
                    pInst->window.type				= NPWindowTypeWindow;
                    pInst->ws_info.type				= NP_SETWINDOW;
                    pInst->ws_info.display			= XtDisplay( (Widget)pInst->pWidget );
                    pInst->ws_info.visual			= DefaultVisualOfScreen( XtScreen( (Widget)pInst->pWidget ) );
                    pInst->ws_info.colormap			= DefaultColormapOfScreen( XtScreen( (Widget)pInst->pWidget ) );
                    pInst->ws_info.depth			= DefaultDepthOfScreen( XtScreen( (Widget)pInst->pWidget ) );
    
                    XtResizeWidget( (Widget)pInst->pShell,
                                    pInst->window.width,
                                    pInst->window.height,
                                    0 );
                    XtResizeWidget( (Widget)pInst->pWidget,
                                    pInst->window.width,
                                    pInst->window.height,
                                    0 );
                }

                NPError aRet = aPluginFuncs.setwindow( pInst->instance, &pInst->window );
                medDebug( 1, "pluginapp: NPP_SetWindow returns %d\n", (int) aRet );
                Respond( pMessage->m_nID,
                         (char*)&aRet, sizeof( aRet ),
                         NULL );
                delete [] (char*)pWindow;
            }
            break;
            case eNPP_StreamAsFile:
            {
                UINT32 nInstance		= pMessage->GetUINT32();
                NPP instance			= m_aInstances[ nInstance ]->instance;
                UINT32 nFileID			= pMessage->GetUINT32();
                NPStream* pStream		= m_aNPWrapStreams[ nFileID ];
                char* fname				= pMessage->GetString();
                medDebug( 1, "pluginapp: NPP_StreamAsFile %s\n", fname );
                aPluginFuncs.asfile( instance, pStream, fname );
                delete [] fname;
            }
            break;
            case eNPP_URLNotify:
            {
                UINT32 nInstance		= pMessage->GetUINT32();
                NPP instance			= m_aInstances[ nInstance ]->instance;
                char* url				= pMessage->GetString();
                NPReason* pReason		= (NPReason*)pMessage->GetBytes();
                void** notifyData		= (void**)pMessage->GetBytes();
                aPluginFuncs.urlnotify( instance, url, *pReason, *notifyData );
                delete [] url;
                delete [] pReason;
                delete [] notifyData;
            }
            break;
            case eNPP_WriteReady:
            {
                UINT32 nInstance		= pMessage->GetUINT32();
                NPP instance			= m_aInstances[ nInstance ]->instance;
                UINT32 nFileID			= pMessage->GetUINT32();
                NPStream* pStream		= m_aNPWrapStreams[ nFileID ];
                int32 nRet = aPluginFuncs.writeready( instance, pStream );
                
                medDebug( 1, "pluginapp: NPP_WriteReady( %p, %p ) (stream id = %d) returns %d\n",
                          instance, pStream, nFileID, nRet );
                
                Respond( pMessage->m_nID,
                         (char*)&nRet, sizeof( nRet ),
                         NULL );
            }
            break;
            case eNPP_Write:
            {
                UINT32 nInstance		= pMessage->GetUINT32();
                NPP instance			= m_aInstances[ nInstance ]->instance;
                UINT32 nFileID			= pMessage->GetUINT32();
                NPStream* pStream		= m_aNPWrapStreams[ nFileID ];
                int32 offset			= pMessage->GetUINT32();
                ULONG len;
                char* buffer			= (char*)pMessage->GetBytes( len );
                int32 nRet = aPluginFuncs.write( instance, pStream, offset, len, buffer );
                
                medDebug( 1,"pluginapp: NPP_Write( %p, %p, %d, %d, %p ) returns %d\n"
                          "stream = { pdata = %p, ndata = %p, url = %s, end = %d, lastmodified = %d, notifyData = %p }\n",
                          instance, pStream, offset, len, buffer, nRet,
                          pStream->pdata, pStream->ndata, pStream->url, pStream->end, pStream->lastmodified, pStream->notifyData );

                Respond( pMessage->m_nID,
                         (char*)&nRet, sizeof( nRet ),
                         NULL );
                delete [] buffer;
            }
            break;
            case eNPP_GetMIMEDescription:
            {
                if( ! pNPP_GetMIMEDescription )
                    pNPP_GetMIMEDescription = (char*(*)())
                        osl_getAsciiFunctionSymbol( pPluginLib, "NPP_GetMIMEDescription" );
                char* pMIME = pNPP_GetMIMEDescription();
                Respond( pMessage->m_nID,
                         POST_STRING( pMIME ),
                         NULL );
            }
            break;
            case eNPP_Initialize:
            {

                pNP_Initialize =
                    (NPError(*)(NPNetscapeFuncs*, NPPluginFuncs*))
                    osl_getAsciiFunctionSymbol( pPluginLib, "NP_Initialize" );
                medDebug( !pNP_Initialize, "no NP_Initialize, %s\n", dlerror() );
                pNP_Shutdown = (NPError(*)())
                    osl_getAsciiFunctionSymbol( pPluginLib, "NP_Shutdown" );
                medDebug( !pNP_Initialize, "no NP_Shutdown, %s\n", dlerror() );

                medDebug( 1, "entering NP_Initialize\n" );
                NPError aRet = pNP_Initialize( &aNetscapeFuncs, &aPluginFuncs );
                medDebug( 1, "pluginapp: NP_Initialize returns %d\n", (int) aRet );
                Respond( pMessage->m_nID, (char*)&aRet, sizeof( aRet ), NULL );
            }
            break;
            case eNPP_Shutdown:
            {
                write( wakeup_fd[1], "xxxx", 4 );
            }
            break;
            default:
                medDebug( 1, "caught unknown NPP request %d\n", nCommand );
                break;
        }
        delete pMessage;
    }
    return 0;
}

void LoadAdditionalLibs( const char* _pPluginLib )
{
    medDebug( 1, "LoadAdditionalLibs %s\n", _pPluginLib );

    if( ! strncmp( _pPluginLib, "libflashplayer.so", 17 ) )
    {
        /*  #b4951312# flash 7 implicitly assumes a gtk application
         *  if the API version is greater or equal to 12 (probably
         *  because they think they run in mozilla then). In that
         *  case they try to find gtk within the process and crash
         *  when they don't find it.
         */
        aNetscapeFuncs.version = 11;
        aPluginFuncs.version = 11;
    }
}