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 the License "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: // Template_plugin.cpp
sl@0: // 
sl@0: //
sl@0: 
sl@0: #include "unremovable_plugin.h"
sl@0: #include "plugincommon.h"
sl@0: #include <f32pluginutils.h>
sl@0: 
sl@0: /**
sl@0: Leaving New function for the plugin
sl@0: @internalComponent
sl@0: */
sl@0: CUnremovablePlugin* CUnremovablePlugin::NewL()
sl@0: 	{
sl@0: 	CUnremovablePlugin* self = new(ELeave) CUnremovablePlugin;
sl@0:     CleanupStack::PushL(self);
sl@0:     self->ConstructL();
sl@0:     CleanupStack::Pop();
sl@0: 	return self;
sl@0: 	}
sl@0: 
sl@0: 
sl@0: /**
sl@0: Constructor for the plugin
sl@0: @internalComponent
sl@0: */
sl@0: CUnremovablePlugin::CUnremovablePlugin() : iInterceptsEnabled(EFalse),
sl@0: 									 iLogging(ETrue)
sl@0: 	{
sl@0: 	}
sl@0: 
sl@0: 
sl@0: void CUnremovablePlugin::ConstructL()
sl@0: 	{
sl@0: 	iRemovable = EFalse;
sl@0: 	}
sl@0: 
sl@0: /**
sl@0: The destructor for the plugin
sl@0: @internalComponent
sl@0: */
sl@0: CUnremovablePlugin::~CUnremovablePlugin()
sl@0: 	{
sl@0: 	iFs.Close();
sl@0: 	}
sl@0: 
sl@0: /**
sl@0: Initialise the plugin.
sl@0: @internalComponent
sl@0: */
sl@0: void CUnremovablePlugin::InitialiseL()
sl@0: 	{
sl@0: 	User::LeaveIfError(iFs.Connect());
sl@0: 	CleanupClosePushL(iFs);
sl@0: 
sl@0: 	_LOG(_L("CUnremovablePlugin InitialiseL"));
sl@0: 	EnableInterceptsL();
sl@0: 
sl@0: 	CleanupStack::Pop(); // iFs
sl@0: 	}
sl@0: 
sl@0: /**
sl@0: Enable the plugin's intercepts.
sl@0: @internalComponent
sl@0: */
sl@0: void CUnremovablePlugin::EnableInterceptsL()
sl@0: 	{
sl@0: 	if (iInterceptsEnabled) return;
sl@0: 
sl@0: 	User::LeaveIfError(RegisterIntercept(EFsDismountPlugin,EPreIntercept));
sl@0: 
sl@0: 	_LOG(_L("CUnremovablePlugin : Enabled intercepts."));
sl@0: 
sl@0: 	iInterceptsEnabled = ETrue;
sl@0: 	}
sl@0: 
sl@0: /**
sl@0: Disable the plugin's intercepts.
sl@0: @internalComponent
sl@0: */
sl@0: void CUnremovablePlugin::DisableInterceptsL()
sl@0: 	{
sl@0: 	if (!iInterceptsEnabled) return;
sl@0: 
sl@0: 	User::LeaveIfError(UnregisterIntercept(EFsDismountPlugin,EPreIntercept));
sl@0: 	
sl@0: 	_LOG(_L("CUnremovablePlugin : Disabled intercepts."));
sl@0: 
sl@0: 	iInterceptsEnabled = EFalse;
sl@0: 	}
sl@0: 
sl@0: /**
sl@0: Handle requests to Dismount the plugin only.
sl@0: This plugin is designed such that its removal is not allowed.
sl@0: @internalComponent
sl@0: */
sl@0: TInt CUnremovablePlugin::DoRequestL(TFsPluginRequest& aRequest)
sl@0: 	{
sl@0: 	TInt err = KErrNone;
sl@0: 
sl@0: 	TInt function = aRequest.Function();
sl@0: 
sl@0: 	if (aRequest.IsPostOperation())
sl@0: 		{
sl@0: 		_LOG2(_L("CUnremovablePlugin post intercept for function %d"), function);
sl@0: 		//We should never get here
sl@0: 		//Is it even correct to post-intercept a EFsDismountPlugin ??
sl@0: 		User::Invariant();
sl@0: 		}
sl@0: 	else
sl@0: 		{
sl@0: 		_LOG2(_L("CUnremovablePlugin pre intercept for function %d"), function);
sl@0: 
sl@0: 		//If a user is trying to dismount this plugin and this plugin doesn't want
sl@0: 		//to be dismounted then we should eb able to intecept this and return KErrAccessDenied or some
sl@0: 		//appropriate error code.
sl@0: 
sl@0: 		if(iRemovable)
sl@0: 			{
sl@0: 			return KErrNone;
sl@0: 			}
sl@0: 		else
sl@0: 			{
sl@0: 			return KErrPermissionDenied;	
sl@0: 			}
sl@0: 		
sl@0: 		}
sl@0: 
sl@0: 	return err;
sl@0: 	}
sl@0: 
sl@0: 
sl@0: CFsPluginConn* CUnremovablePlugin::NewPluginConnL()
sl@0: 	{
sl@0: 	return new(ELeave) CUnremovablePluginConn();
sl@0: 	}
sl@0: 
sl@0: 
sl@0: //Synchronous RPlugin::DoControl
sl@0: TInt CUnremovablePlugin::FsPluginDoControlL(CFsPluginConnRequest& aRequest)
sl@0: 	{
sl@0: 	TInt err = KErrNone;
sl@0: 
sl@0: 	//We can use this to set the drive
sl@0: 	//We can store this as a member of this class.
sl@0: 	TInt function = aRequest.Function();
sl@0: 	TPckg<TInt> removableDes(iRemovable);
sl@0: 	
sl@0: 	switch(function)
sl@0: 		{
sl@0: 		//case KPluginGetError:
sl@0: 		//	{
sl@0: 		//	TPckg<TInt> errCodeDes(iLastError);
sl@0: 		//	TPckg<TInt> errMsgDes(iMessage);
sl@0: 		//	TRAP(err,aRequest.WriteParam1L(errCodeDes));
sl@0: 		//	TRAP(err,aRequest.WriteParam2L(errMsgDes));
sl@0: 		//	break;
sl@0: 		//	}
sl@0: 		case KPluginSetRemovable:
sl@0: 			{
sl@0: 			TRAP(err,aRequest.ReadParam1L(removableDes));
sl@0: 			break;
sl@0: 			}
sl@0: 		default:
sl@0: 			break;
sl@0: 		}
sl@0: 
sl@0: 	return err;
sl@0: 	}
sl@0: 
sl@0: TInt CUnremovablePluginConn::DoControl(CFsPluginConnRequest& aRequest)
sl@0: 	{
sl@0: 	return ((CUnremovablePlugin*)Plugin())->FsPluginDoControlL(aRequest);
sl@0: 	}
sl@0: 
sl@0: void CUnremovablePluginConn::DoRequest(CFsPluginConnRequest& aRequest)
sl@0: 	{
sl@0: 	DoControl(aRequest);
sl@0: 	}
sl@0: 
sl@0: void CUnremovablePluginConn::DoCancel(TInt /*aReqMask*/)
sl@0: 	{
sl@0: 	}
sl@0: 
sl@0: 
sl@0: //factory functions
sl@0: 
sl@0: class CUnremovablePluginFactory : public CFsPluginFactory
sl@0: 	{
sl@0: public:
sl@0: 	CUnremovablePluginFactory();
sl@0: 	virtual TInt Install();
sl@0: 	virtual CFsPlugin* NewPluginL();
sl@0: 	virtual CFsPlugin* NewPluginConnL();
sl@0: 	virtual TInt UniquePosition();
sl@0: 	};
sl@0: 
sl@0: /**
sl@0: Constructor for the plugin factory
sl@0: @internalComponent
sl@0: */
sl@0: CUnremovablePluginFactory::CUnremovablePluginFactory()
sl@0: 	{
sl@0: 	}
sl@0: 
sl@0: /**
sl@0: Install function for the plugin factory
sl@0: @internalComponent
sl@0: */
sl@0: TInt CUnremovablePluginFactory::Install()
sl@0: 	{
sl@0: 	iSupportedDrives = KPluginAutoAttach;
sl@0: 	return(SetName(&KUnremovablePluginName));
sl@0: 	}
sl@0: 
sl@0: /**
sl@0: @internalComponent
sl@0: */
sl@0: TInt CUnremovablePluginFactory::UniquePosition()
sl@0: 	{
sl@0: 	return(KUnremovablePos);
sl@0: 	}
sl@0: 
sl@0: /**
sl@0: Plugin factory function
sl@0: @internalComponent
sl@0: */
sl@0: CFsPlugin* CUnremovablePluginFactory::NewPluginL()
sl@0: 
sl@0: 	{
sl@0: 	return CUnremovablePlugin::NewL();
sl@0: 	}
sl@0: 
sl@0: /**
sl@0: Plugin factory function
sl@0: @internalComponent
sl@0: */
sl@0: CFsPlugin* CUnremovablePluginFactory::NewPluginConnL()
sl@0: 
sl@0: 	{
sl@0: 	return CUnremovablePlugin::NewL();
sl@0: 	}
sl@0: 
sl@0: /**
sl@0: Create a new Plugin
sl@0: @internalComponent
sl@0: */
sl@0: extern "C" {
sl@0: 
sl@0: EXPORT_C CFsPluginFactory* CreateFileSystem()
sl@0: 	{
sl@0: 	return(new CUnremovablePluginFactory());
sl@0: 	}
sl@0: }
sl@0: