sl@0: // Copyright (c) 2007-2009 Nokia Corporation and/or its subsidiary(-ies).
sl@0: // All rights reserved.
sl@0: // This component and the accompanying materials are made available
sl@0: // under the terms of "Eclipse Public License v1.0"
sl@0: // which accompanies this distribution, and is available
sl@0: // at the URL "http://www.eclipse.org/legal/epl-v10.html".
sl@0: //
sl@0: // Initial Contributors:
sl@0: // Nokia Corporation - initial contribution.
sl@0: //
sl@0: // Contributors:
sl@0: //
sl@0: // Description:
sl@0: //
sl@0: 
sl@0: #include "wspluginmanager.h"
sl@0: #include "graphics/WSPLUGIN.H"
sl@0: #include "inifile.h"
sl@0: 
sl@0: GLREF_D CDebugLogBase* wsDebugLog;
sl@0: 
sl@0: const TInt KPluginInterfaceId = 0x10285A29;
sl@0: 
sl@0: /**********************************************************************
sl@0: Plugin Info
sl@0: **********************************************************************/
sl@0: CWsPluginManager::CPluginInfo::CPluginInfo()
sl@0: 	{
sl@0: 	}
sl@0: 
sl@0: CWsPluginManager::CPluginInfo::~CPluginInfo()
sl@0: 	{
sl@0: 	delete iPlugin;
sl@0: 	}
sl@0: 
sl@0: /**********************************************************************
sl@0: Plugin Manager
sl@0: **********************************************************************/
sl@0: CWsPluginManager* CWsPluginManager::NewL()
sl@0: 	{
sl@0: 	CWsPluginManager* self = new (ELeave) CWsPluginManager();
sl@0: 	CleanupStack::PushL(self);
sl@0: 	self->ConstructL();
sl@0: 	CleanupStack::Pop(self);
sl@0: 	return self;
sl@0: 	}
sl@0: 
sl@0: CWsPluginManager::CWsPluginManager() :
sl@0:     iSession(REComSession::OpenL())
sl@0: 	{
sl@0: 	}
sl@0: 	
sl@0: CWsPluginManager::~CWsPluginManager()
sl@0: 	{
sl@0: 	iPlugins.ResetAndDestroy();
sl@0: 	iSession.Close();
sl@0: 	REComSession::FinalClose();
sl@0: 	}
sl@0: 
sl@0: void CWsPluginManager::ConstructL()
sl@0: 	{
sl@0: 	_LIT(KPlugins,"PLUGINS");
sl@0: 	
sl@0: 	TPtrC pluginString;
sl@0: 	TBool havePlugins=WsIniFile->FindVar(KPlugins,pluginString);
sl@0: 	const TDesC * plugins;
sl@0: 	_LIT(KDefaultPlugins, "FLICKERBUFFER DISPLAY");	
sl@0: 	if (havePlugins)
sl@0: 		plugins = &pluginString;
sl@0: 	else
sl@0: 		plugins = &KDefaultPlugins;
sl@0: 	TLex lex(*plugins);
sl@0: 	while(true)
sl@0: 		{
sl@0: 		TPtrC ptr = lex.NextToken();
sl@0: 		if (ptr.Length() > 0)
sl@0: 			{
sl@0: 			CWsPlugin * plugin = 0;
sl@0: 			
sl@0: 			TRAPD(err, plugin = LoadPluginL(ptr));
sl@0: 
sl@0: 			if (wsDebugLog)
sl@0: 				{
sl@0: 				TBuf<80> buf;
sl@0: 				if (err == KErrNone)
sl@0: 					{
sl@0: 					_LIT(KLoadedPlugin,"Loaded plugin: ");
sl@0: 					_LIT(KPluginName, " calling itself: ");
sl@0: 					buf.Append(KLoadedPlugin);
sl@0: 					buf.Append(ptr);
sl@0: 					buf.Append(KPluginName);
sl@0: 					buf.Append(plugin->PluginName());
sl@0: 					wsDebugLog->MiscMessage(CDebugLogBase::ELogImportant,buf);
sl@0: 					}
sl@0: 				else
sl@0: 					{
sl@0: 					_LIT(KMissingPlugin,"Failed to load plugin (%d): ");
sl@0: 					buf.Append(KMissingPlugin);
sl@0: 					buf.Append(ptr);
sl@0: 					wsDebugLog->MiscMessage(CDebugLogBase::ELogImportant,buf,err);
sl@0: 					}
sl@0: 				}
sl@0: 
sl@0: 			if (err<KErrNone)
sl@0: 				{	//Additionally log to RDebug if error
sl@0: 				_LIT(KMissingPlugin,"WServ: Failed to load plugin %S (error %d)");
sl@0: 				RDebug::Print(KMissingPlugin,&ptr,err);
sl@0: 				}
sl@0: 			}
sl@0: 		else
sl@0: 			{
sl@0: 			break;
sl@0: 			}
sl@0: 		}
sl@0: 	}
sl@0: 
sl@0: CWsPlugin * CWsPluginManager::LoadPluginL(const TDesC& aSection)
sl@0: 	{
sl@0: 	_LIT(KId, "ID");
sl@0: 	_LIT(KData, "DATA");
sl@0: 	_LIT(KType, "TYPE");
sl@0: 	TInt id;
sl@0: 	TPtrC data;
sl@0: 	TPtrC type;
sl@0: 	TAny * dataPtr;
sl@0: 	CWsPlugin * plugin = 0;
sl@0: 	TBool hasId=WsIniFile->FindVar(aSection,KId,id);
sl@0: 	TBool hasType=WsIniFile->FindVar(aSection,KType,type);
sl@0: 	if ((!hasId) && (!hasType))
sl@0: 		{
sl@0: 		_LIT(KCscStage, "TCSC");
sl@0: 		_LIT(KFlickerBufferStage, "FLICKERBUFFER");
sl@0: 		_LIT(KDisplayStage, "DISPLAY");
sl@0: 		if (!aSection.CompareF(KFlickerBufferStage))
sl@0: 			{
sl@0: 			hasId = ETrue;
sl@0: 			id = 0x1028637B;
sl@0: 			}
sl@0: 		else if (!aSection.CompareF(KDisplayStage))
sl@0: 			{
sl@0: 			hasId = ETrue;
sl@0: 			id = 0x1028637A;
sl@0: 			}
sl@0: 		else if (!aSection.CompareF(KCscStage))
sl@0: 			{
sl@0: 			hasId = ETrue;
sl@0: 			id = 0x10286507;
sl@0: 			}	
sl@0: 		else
sl@0: 			{
sl@0: 			hasType = ETrue;
sl@0: 			type.Set(aSection);
sl@0: 			}
sl@0: 		}	
sl@0: 	TBool hasData = WsIniFile->FindVar(aSection,KData,data);
sl@0: 	
sl@0: 	if (hasData)
sl@0: 		dataPtr = &data;
sl@0: 	else
sl@0: 		dataPtr = NULL;
sl@0: 
sl@0: 	CPluginInfo* info = new (ELeave) CPluginInfo;
sl@0: 	CleanupStack::PushL(info);
sl@0: 
sl@0: 	if (hasId)
sl@0: 		{
sl@0: 		TUid uid = TUid::Uid(id);
sl@0: 		plugin = reinterpret_cast<CWsPlugin*>(iSession.CreateImplementationL(uid, CWsPlugin::DtorIDKeyOffset(), dataPtr));
sl@0: 		}
sl@0: 	else
sl@0: 		{
sl@0: 		TEComResolverParams params;
sl@0: 		RBuf8 buf8;
sl@0: 		buf8.CreateL(type.Length());
sl@0: 		CleanupClosePushL(buf8);
sl@0: 		buf8.Copy(type);
sl@0: 		params.SetDataType(buf8);
sl@0: 		plugin = reinterpret_cast<CWsPlugin*>(iSession.CreateImplementationL(TUid::Uid(KPluginInterfaceId),CWsPlugin::DtorIDKeyOffset(),dataPtr,params));
sl@0: 		CleanupStack::PopAndDestroy(&buf8);
sl@0: 		}
sl@0: 	
sl@0: 	User::LeaveIfNull(plugin);
sl@0: 	info->iPlugin = plugin;
sl@0: 	User::LeaveIfError(iPlugins.Append(info));
sl@0: 	CleanupStack::Pop(info);
sl@0: 	return plugin;
sl@0: 	}
sl@0: 
sl@0: void CWsPluginManager::InitializePluginsL(MWsGraphicDrawerEnvironment& aEnvironment)
sl@0: 	{
sl@0: 	TInt nbPlugins=iPlugins.Count();
sl@0: 	RBuf8 empty;
sl@0: 	for (TInt k=0;k<nbPlugins;k++)
sl@0: 		{
sl@0: 		iPlugins[k]->iPlugin->ConstructL(aEnvironment,empty);
sl@0: 		}
sl@0: 	}
sl@0: 
sl@0: TAny * CWsPluginManager::ResolveObjectInterface(TUint aId)
sl@0: 	{
sl@0: 	if (aId == MWsPluginManager::EWsObjectInterfaceId)
sl@0: 		return static_cast<MWsPluginManager*>(this);
sl@0: 	return NULL;
sl@0: 	}
sl@0: 
sl@0: TAny * CWsPluginManager::ResolvePluginInterface(TUint aId)
sl@0: 	{
sl@0: 	for (TInt p = 0; p < iPlugins.Count(); ++p)
sl@0: 		{
sl@0: 		TAny * interface = iPlugins[p]->iPlugin->ResolveObjectInterface(aId);
sl@0: 		if (interface)
sl@0: 			return interface;
sl@0: 		}
sl@0: 	return NULL;
sl@0: 	}
sl@0: