// Copyright (c) 2001-2009 Nokia Corporation and/or its subsidiary(-ies).

// All rights reserved.

// This component and the accompanying materials are made available

// under the terms of "Eclipse Public License v1.0"

// which accompanies this distribution, and is available

// at the URL "http://www.eclipse.org/legal/epl-v10.html".

//

// Initial Contributors:

// Nokia Corporation - initial contribution.

//

// Contributors:

//

// Description:

// obexClientMtm.h

//

#ifndef __OBEXCLIENTMTM_H__

#define __OBEXCLIENTMTM_H__

#include <mtclbase.h> //CBaseMtm

// temporary forward declaration for now...

class CObexHeaderList;

class CMsvEntry;

class CMtmDllRegistry;

class CRichText;

class TMsvEntry;

class CRegisteredMtmDll;

class CMsvSession;

class CObexMtmHeader;

//extern const TInt KMaxObexPasswordLength;

class TObexMtmProgress

/**

Used to determine the progress for the current obex send operation.

@publishedPartner

@released

*/

	{

public:

	//The current state the send operation is in

	enum TSendState

		{

		ENullOp = 0, //< Undefined state

		EInitialise, //< Initialise Obex client object

		EConnect, //< Trying to connect

		EConnectAttemptComplete, //< Connection complete

		ESendObject, //< Send Obex object

		ESendNextObject, //< Send next Obex object

		ESendComplete, //< Send complete

		EDisconnected, //< Disconnected

		EUserCancelled,  //< User has cancelled the send, the current operation is unimportant

		ESendError, //< Problem with the send

		EInitialised, //< Initialisation complete

		EMovedToSent //< Move sent message to outbox (not supported from v7.0s)

		};

	TSendState iSendState; //< Current state of send operation

	TInt iTotalEntryCount; //< Total number of objects to send

	TInt iEntriesDone; 		//< Number of entries sent

	TInt iCurrentEntrySize; //< Length attribute of the current object (bytes)

	TInt iCurrentBytesTrans;//< Number of bytes sent of the current object

	TInt iError;			//< Operation error code

	};

class CObexClientMtm : public CBaseMtm

/**

CObexClientMtm 

Abstract base class for Client Mtms that send obex objects

The functionality missing is an implementation of InvokeAsyncFunctionL()

which should return a messaging operation for a specific transport, InitialiseHeaderL() which is used

to create a CObexMtmHeader derived object of the appropriate type, and TestInvariant() which is used to

perform invariant testing of the derived types (in debug only).

These pure-virtual functions are the transport specific aspects of the MTM.

@publishedPartner

@released

*/

	{

public:

	// Contains the connect the timeout values for connect and put operations

	struct STimeouts

		{

		TInt iConnectTimeout;

		TInt iPutTimeout;

		};

	//CBaseMtm Implementation

	/**

	 * Commits cached changes to the message store, by calling CommitChangesL. 

	 *

	 * @leave KErrXxx System-wide error codes if message cannot be saved.

	 */

	IMPORT_C virtual void SaveMessageL();

	/**

	 * This function loads the header from the message store

	 *

	 * @leave KErrXXX system-wide error codes

	 */

	IMPORT_C virtual void LoadMessageL();

	/**

	 * Ensure that the current message context part indicated is valid. Currently only works on KMsvMessagePartRecipient--all other parts

	 * are assumed to be valid

	 *

	 * @param aPartList Bitmask indicating parts of message to be validated

	 * @return Bitmask of any invalid parts--KErrNone otherwise

	 */

	IMPORT_C virtual TUint ValidateMessage(TMsvPartList aPartList);

	/**

  	 * Finds the given text within the specified parts of the current message context. NOT IMPLEMENTED!

	 * 

	 * @param aTextToFind Reference to the text to search for in the specified message parts

	 * @param aPartList Bitmask indicating parts of message to be searched for the text

	 * @return Bitmask of any parts containing the message text

	 */

	IMPORT_C virtual TMsvPartList Find(const TDesC& aTextToFind, TMsvPartList aPartList);

	/**

	 * Unsupported

	 *

	 * @leave Leaves always with KErrNotSupported

	 */

	IMPORT_C virtual CMsvOperation* ReplyL  (TMsvId aReplyEntryId, TMsvPartList aPartlist, TRequestStatus& aCompletionStatus);

	/**

	 * Unsupported

	 *

	 *  @leave Leaves always with KErrNotSupported

	 */

	IMPORT_C virtual CMsvOperation* ForwardL(TMsvId aForwardEntryId, TMsvPartList aPartList, TRequestStatus& aCompletionStatus);

	// addresssee list (used by objects with no MTM knowledge)

	/**

	 * Adds addressee to the addressee "list". Note that this MUST be a TDesC containing binary data representing

	 * the TSockAddress of the addressee, usually as a TDesC16. This function will then package the data directly into 

	 * 8 bit data.

 	 * NB: Only ONE addressee is supported

	 *

	 * @param aRealAddress Reference to the address of the recipient

 	 * @leave KErrXXX if address cannot be appended

	 * @leave KErrAlreadyExists if the Addressee "list" already contains an entry

	 */

	IMPORT_C virtual void AddAddresseeL(const TDesC& aRealAddress);

	/**

	 * Adds addressee to the addressee "list". Note that this MUST be a TDesC containing binary data representing

	 * the TSockAddress of the addressee, usually as a TDesC16. This function will then package the data directly into 

	 * 8 bit data.

	 * NB: Only ONE addressee is supported

	 *

	 * @param aRealAddress Reference to the address of the recipient

	 * @param aAlias Reference to the alias of the recipient--ignored in this implementation

	 * @leave KErrXXX if address cannot be appended

	 * @leave KErrAlreadyExists if the Addressee "list" already contains an entry

	 */

	IMPORT_C virtual void AddAddresseeL(const TDesC& aRealAddress, const TDesC& aAlias);

	/**

	 * Removes addressee at index aIndex from the addressee "list".

	 *

	 * @param aIndex zero-based index of the addressee (ignored since "there can be only one").

	 */

	IMPORT_C virtual void RemoveAddressee(TInt aIndex);

	/**

	 * Sets the subject of the current message context

	 *

	 * @param aSubject Reference to the new message subject text

	 * @leave Leaves if creation of new HBufC fails

	 */	

	IMPORT_C void SetSubjectL(const TDesC& aSubject);

	/**

	 * Returns the subject of the current message context. Will not leave.

	 *

	 * @return const TPtrC representation of the Subject, or an empty TPtrC if the subject hasn't been set

	 * @leave Never

	 */

	IMPORT_C const TPtrC SubjectL() const;

	IMPORT_C void CreateMessageAttachmentL(TMsvId aAttachmentId); 

	// --- RTTI functions ---

	/**

	 * Gives the capability of the MTM. 

	 *

	 * @param aCapability capability to be queried

	 * @param aResponse capability dependent return value.

	 * @return KErrNone if the capability is supported, or KErrNotSupported if not.

	 */

	IMPORT_C virtual TInt QueryCapability(TUid aCapability, TInt& aResponse);

	IMPORT_C virtual void InvokeSyncFunctionL(TInt aFunctionId,const CMsvEntrySelection& aSelection, TDes8& aParameter);

	/**

	 * Create a new message for this MTM. This creates a new messaging entry, then

	 * re-initialises the MTM's CObexMtmHeader object.

	 *

	 * @param aServiceId The ID of the service for which the message is to be created

	 * @leave KErrXxx Standard EPOC error codes if construction of new objects fails

	 */

	IMPORT_C virtual void CreateMessageL(TMsvId /*aServiceId*/);

	/**

	 * Destructor deletes FileNameExternaliser and Header

	 */

	IMPORT_C ~CObexClientMtm();

	/**

	 * Commits cached changes to the message store. 

	 *

	 * @leave KErrXxx System-wide error codes if changes cannot be committed.

	 */

	IMPORT_C void CommitChangesL();

	/**

	 * This function calculates the size of all attachments to the message by either:

	 *

	 *  @li summing the sizes of each of the children or;

	 *  @li reading in all of the filenames from the store, and summing their sizes.*

	 *

	 *  @return total size of the attachments.

	 *  @leave KErrXXX system-wide error codes

	 */

	IMPORT_C TInt32 GetAttachmentSizeL();

protected:

	/**

	 * Constructor. Initialises iMsgTypeUid with Uid provided by the derived class.

	 *

	 * @param aRegisteredMtmDll Registration data for MTM DLL.

	 * @param aMsvSession CMsvSession of the client requesting the object.

	 * @param aMsgTypeUid Uid of the message

	 */

	IMPORT_C CObexClientMtm(CRegisteredMtmDll& aRegisteredMtmDll, CMsvSession& aMsvSession, TUid aMsgTypeUid);

	/**

	 * Empty implementation provided for future-proofing.

	 */

	IMPORT_C void ConstructL();

	// Initialises header information (must be overridden in derived class)

	virtual void InitialiseHeaderL() = 0;

	/**

	 * Resets the MTM when the context is switched.

	 * Must be called by the derived class's ContextEntrySwitched prior to constructing a new header.

	 */

	IMPORT_C void ContextEntrySwitched(); // called after the context of this instance has been changed to another entry

protected:

	CObexMtmHeader* iHeader;	//<Header information that must be initialised by InitialiseHeaderL in the derived classes!

private:

	const TUid iMsgTypeUid;	//<Message type UID, set by the derived class's constructor as appropriate for each derived MTM

	};

//Custom invariant test macro--allows TestInvariant() function to be virtual

#ifdef _DEBUG

#define __TEST_INVARIANT_VIRTUAL TestInvariant();

#else

#define __TEST_INVARIANT_VIRTUAL

#endif //__DEBUG__

#endif // __OBEXCLIENTMTM_H__