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MCoeControlObserver Class Reference

class MCoeControlObserver

Interface for a control to send events to its observer control.

Public Member Functions
void	HandleControlEventL ( CCoeControl *, TCoeEvent )

Protected Member Functions
	MCoeControlObserver ()

Private Member Functions
IMPORT_C void	MCoeControlObserver_Reserved1 ()
IMPORT_C void	MCoeControlObserver_Reserved2 ()

Public Member Enumerations
enum	TCoeEvent { EEventRequestExit , EEventRequestCancel , EEventRequestFocus , EEventPrepareFocusTransition , EEventStateChanged , EEventInteractionRefused }

Private Attributes
TInt	iMCoeControlObserver_Reserved1

Constructor & Destructor Documentation

MCoeControlObserver()

IMPORT_C

MCoeControlObserver

(

)

[protected]

Member Functions Documentation

HandleControlEventL(CCoeControl *, TCoeEvent)

void	HandleControlEventL	(	CCoeControl *	aControl,
			TCoeEvent	aEventType
		)	[pure virtual]

Handles an event from an observed control.

This function is called when a control for which this control is the observer calls CCoeControl::ReportEventL() . It should be implemented by the observer control, and should handle all events sent by controls it observes.

Parameters

CCoeControl * aControl	The control that sent the event.
TCoeEvent aEventType	The event type.

MCoeControlObserver_Reserved1()

IMPORT_C void

MCoeControlObserver_Reserved1

(

)

[private, virtual]

MCoeControlObserver_Reserved2()

IMPORT_C void

MCoeControlObserver_Reserved2

(

)

[private, virtual]

Member Enumerations Documentation

Enum TCoeEvent

Observer event types.

Enumerators

EEventRequestExit	Request exit. This event is used to indicate exit from a mode when the user has completed an operation 'successfully'. For example, this event might be sent when the user has a choice list open and presses enter to select an item. The UI Control Framework does not use this event itself.
EEventRequestCancel	Request cancel. This event is used to indicate exit from a mode when the user has cancelled the operation that caused entry into the mode originally. For example, this event might be sent when the user presses escape to close the list and leave the choice as it was. The UI Control Framework does not use this event itself.
EEventRequestFocus	Request focus. This event is notified by the UI Control Framework during pointer down event processing after EEventPrepareFocusTransition is handled.
EEventPrepareFocusTransition	Prepare focus transition. This event is notified by the UI Control Framework during pointer down event processing if the control does not yet have, but could get, focus.
EEventStateChanged	State changed. This event can be used by a control to report that some piece of internal data has changed, and hence that any observer should be notified accordingly. The UI Control Framework does not use this value itself.
EEventInteractionRefused	Interaction refused. This event is notified by the UI Control Framework during pointer down event processing if the control is dimmed (disabled).

Member Data Documentation

TInt iMCoeControlObserver_Reserved1

TInt

iMCoeControlObserver_Reserved1

[private]