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CHnEventHandler Class Reference

class CHnEventHandler : public CBase

Event handler class.

Event Handler is designed to handle events. It reveives an event id from the UI, mapps this event into an appropriate action, and runs this action.

hnpresentationmodel

Since: S60 5.0

Inherits from

CHnEventHandler
- CBase

Public Member Functions
	~CHnEventHandler()
IMPORT_C TInt	ExecuteActionL(CHnActionModel *)
TInt	HandleNotifyL(TInt, TInt, CLiwGenericParamList &, const CLiwGenericParamList &)
CHnEventHandler *	NewL(MHnMdModelEventObserver &, MHnControllerInterface &)
CHnEventHandler *	NewLC(MHnMdModelEventObserver &, MHnControllerInterface &)

Private Member Functions
	CHnEventHandler(MHnMdModelEventObserver &, MHnControllerInterface &)
void	ConstructL()
TInt	ExecuteExtensionManagerActionL(CHnActionModel *)
TInt	ExecuteInternalActionL(CHnActionModel *)
TInt	ExecuteStandardActionL(CHnActionModel *)
TInt	ExtractUidFromActionL(const TDesC8 &, TUid &)

Inherited Functions
	CBase::CBase()
	CBase::Delete(CBase *)
	CBase::Extension_(TUint,TAny &,TAny )
	CBase::operator new(TUint)
	CBase::operator new(TUint,TAny *)
	CBase::operator new(TUint,TLeave)
	CBase::operator new(TUint,TLeave,TUint)
	CBase::operator new(TUint,TUint)
	CBase::~CBase()

Private Attributes
MHnControllerInterface &	iControllerInterface
MHnMdModelEventObserver &	iEventObserver
TBool	iIsExecutingStandardAsyncAction
CHnServiceHandler *	iServiceHandler

Constructor & Destructor Documentation

CHnEventHandler(MHnMdModelEventObserver &, MHnControllerInterface &)

CHnEventHandler	(	MHnMdModelEventObserver &	aModelObserver,
		MHnControllerInterface &	aController
	)	[private]

Constructor for performing 1st stage construction

Since: S60 5.0

Parameters

MHnMdModelEventObserver & aModelObserver	A model event observer reference.
MHnControllerInterface & aController	A HH controller reference.

~CHnEventHandler()

~CHnEventHandler

(

)

Destructor.

Since: S60 5.0

Member Functions Documentation

ConstructL()

void

ConstructL

(

)

[private]

EPOC default constructor for performing 2nd stage construction

Since: S60 5.0

ExecuteActionL(CHnActionModel *)

IMPORT_C TInt

ExecuteActionL

(

CHnActionModel *

aActionModel

)

Executes the action that was found in the Model.

Since: S60 v3.2

CHnActionModel

Parameters

CHnActionModel * aActionModel

A pointer to the object of the CHnActionModel class.

ExecuteExtensionManagerActionL(CHnActionModel *)

TInt

ExecuteExtensionManagerActionL

(

CHnActionModel *

aActionModel

)

[private]

Executes action from Extension Manager.

Since: S60 v5.0

Parameters

CHnActionModel * aActionModel

Model of the action.

ExecuteInternalActionL(CHnActionModel *)

TInt

ExecuteInternalActionL

(

CHnActionModel *

aActionModel

)

[private]

Notifies UI about actions that can be passed back to the UI, i.e. openning nested suites, widget change.

Since: S60 5.0

Parameters

CHnActionModel * aActionModel

Model of the action.

ExecuteStandardActionL(CHnActionModel *)

TInt

ExecuteStandardActionL

(

CHnActionModel *

aActionModel

)

[private]

Uses default mechanism to execute an action.

Since: S60 v5.0

Parameters

CHnActionModel * aActionModel

Model of the action.

ExtractUidFromActionL(const TDesC8 &, TUid &)

TInt	ExtractUidFromActionL	(	const TDesC8 &	aInterface,
			TUid &	aUid
		)	[private]

Extracts extension uid from the action.

Since: S60 v5.0

Parameters

const TDesC8 & aInterface	Interface to invoke action on.
TUid & aUid	The resulting UID.

HandleNotifyL(TInt, TInt, CLiwGenericParamList &, const CLiwGenericParamList &)

TInt	HandleNotifyL	(	TInt	aCmdId,
			TInt	aEventId,
			CLiwGenericParamList &	aEventParamList,
			const CLiwGenericParamList &	aInParamList
		)

Handles notification.

Parameters

TInt aCmdId	The Id of the command triggered.
TInt aEventId	The Id of the event.
CLiwGenericParamList & aEventParamList	Parameters to event.
const CLiwGenericParamList & aInParamList	Input parameter list.

NewL(MHnMdModelEventObserver &, MHnControllerInterface &)

CHnEventHandler *	NewL	(	MHnMdModelEventObserver &	aModelObserver,
			MHnControllerInterface &	aController
		)	[static]

Two-phased constructor.

Since: S60 5.0

Parameters

MHnMdModelEventObserver & aModelObserver	Model event observer.
MHnControllerInterface & aController	Interface enabling to issues request to Hn engine.

NewLC(MHnMdModelEventObserver &, MHnControllerInterface &)

CHnEventHandler *	NewLC	(	MHnMdModelEventObserver &	aModelObserver,
			MHnControllerInterface &	aController
		)	[static]

Two-phased constructor.

Since: S60 5.0

Parameters

MHnMdModelEventObserver & aModelObserver	Model event observer.
MHnControllerInterface & aController	Interface enabling to issues request to Hn engine.

Member Data Documentation

MHnControllerInterface & iControllerInterface

MHnControllerInterface &

iControllerInterface

[private]

Not own. Reference to App UI - Event observer.

MHnMdModelEventObserver & iEventObserver

MHnMdModelEventObserver &

iEventObserver

[private]

Not own. Reference to HnEngine - Event observer.

TBool iIsExecutingStandardAsyncAction

TBool

iIsExecutingStandardAsyncAction

[private]

ETrue if a standard asynchroneous action is being executed by this event handler.

CHnServiceHandler * iServiceHandler

CHnServiceHandler *

iServiceHandler

[private]

Own.