CAknAppUi Class Reference

API published in: S60 1st Ed

Link against: avkon.lib eikcore.lib eiksrv.lib

Capability Information

Required Capabilities

None

#include <aknappui.h>

Inherits CAknAppUiBase, MEikStatusPaneObserver, and MAknTouchPaneObserver.

Inherited by CAknViewAppUi.

Detailed Description

Abstract Avkon application UI class.


Public Member Functions
IMPORT_C void	BaseConstructL (TInt aAppUiFlags=EStandardApp)
	Initialises this Avkon app UI with standard values.
IMPORT_C	~CAknAppUi ()
	Destructor.
IMPORT_C void	ConstructL ()
	From `CEikAppUi`.
IMPORT_C CEikStatusPane *	StatusPane ()
	Gets a pointer to the status pane.
IMPORT_C CEikButtonGroupContainer *	Cba ()
	Gets a pointer to the Command Button Area.
IMPORT_C CAknTouchPane *	TouchPane ()
	Gets a pointer to the touch pane.
IMPORT_C CAknToolbar *	PopupToolbar () const
	Gets a pointer to the application toolbar.
IMPORT_C CAknToolbar *	CurrentPopupToolbar () const
	Gets a pointer to the current toolbar( view toolbar is priority ).
void	StopDisplayingPopupToolbar ()
	Hides popup toolbar if it is visible.
IMPORT_C void	ProcessCommandL (TInt aCommand)
	Processes user commands.
IMPORT_C TErrorHandlerResponse	HandleError (TInt aError, const SExtendedError &aExtErr, TDes &aErrorText, TDes &aContextText)
	Handles errors.
IMPORT_C void	RunAppShutter ()
	Run the application shutter if it exists.
IMPORT_C TBool	IsAppShutterRunning () const
	Determines whether the application shutter is active.
virtual IMPORT_C void	HandleViewDeactivation (const TVwsViewId &aViewIdToBeDeactivated, const TVwsViewId &aNewlyActivatedViewId)
	From `MCoeViewDeactivationObserver`.
IMPORT_C void	PrepareToExit ()
	From `CCoeAppUiBase`.
IMPORT_C void	HandleTouchPaneSizeChange ()
	From .
IMPORT_C void	HideApplicationFromFSW (TBool aHide=ETrue)
	Hide application from Fast-swap window.
IMPORT_C void	GetAliasKeyCodeL (TUint &aCode, const TKeyEvent &aKeyEvent, TEventCode aType)
	Gets keyboard layout specific keycode.
IMPORT_C void	SetAliasKeyCodeResolverL (MAknAliasKeyCodeResolver *aResolver)
	Sets custom resolver for keycode aliases Creates iExtension if it doesn't exist.
IMPORT_C TInt32	CaptureKey (TUint aKeycode, TUint aModifierMask, TUint aModifier)
	This is same as RWindowGroup::CaptureKey, except that this version takes S60 keymappings into account and captures the key that produces requested aKeyCode according to S60 keymappings.
IMPORT_C void	CaptureKeyL (TUint aKeycode, TUint aModifierMask, TUint aModifier, TInt32 &aHandle)
	This is same as RWindowGroup::CaptureKey, except that this version takes S60 keymappings into account and captures the key that produces requested aKeyCode according to S60 keymappings.
Protected Member Functions
IMPORT_C void	HandleStatusPaneSizeChange ()
	From `MEikStatusPaneObserver`.
IMPORT_C void	HandleSystemEventL (const TWsEvent &aEvent)
	From `CCoeAppUi`.
virtual IMPORT_C void	Reserved_MtsmPosition ()
virtual IMPORT_C void	Reserved_MtsmObject ()
IMPORT_C void	HandleForegroundEventL (TBool aForeground)
	Handles changes in keyboard focus when an application switches to, or from, the foreground.
IMPORT_C void	HandleWsEventL (const TWsEvent &aEvent, CCoeControl *aDestination)
	Handles window server events.
IMPORT_C void	SetKeyBlockMode (TAknKeyBlockMode aMode)
	Set key block mode.
IMPORT_C void	HandleErrorL (TInt aError, HBufC **aErrorDesc, TBool aShowNote=ETrue)
void	DecideWsClientBufferSizesL ()
	Try to set window server buffer size to `KAknDefaultWsBufferSize`.

Constructor & Destructor Documentation

IMPORT_C CAknAppUi::~CAknAppUi

(

)

Destructor.

Member Function Documentation

IMPORT_C void CAknAppUi::BaseConstructL ( TInt aAppUiFlags = EStandardApp )

Initialises this Avkon app UI with standard values.

aAppUiFlags values are common with CEikAppUi::BaseConstructL(aAppUiFlags). Additionally those aAppUiFlags values can be bitwise ORed with EAknEnableSkin flag to provide default skin parameters for this AppUi instance.

Parameters:

aAppUiFlags

Application user interface flags.

Reimplemented from CAknAppUiBase.

Reimplemented in CAknViewAppUi.

IMPORT_C TInt32 CAknAppUi::CaptureKey	(	TUint	aKeycode,
		TUint	aModifierMask,
		TUint	aModifier
	)

This is same as RWindowGroup::CaptureKey, except that this version takes S60 keymappings into account and captures the key that produces requested aKeyCode according to S60 keymappings.

Standard RWindowgroup::CaptureKey functionality takes place before S60 AppUi framework and has no knowledge of S60 keymappings. Note: This method requires same capabilites as RWindowGroup::CaptureKey()

Parameters:

	aKeycode	The key code for the key to be captured. Key codes for special keys are defined in TKeyCode.
	aModifier	Mask Only the modifier keys in this mask are tested against the states specified in aModifier.
	aModifier	The key is captured only when the modifier keys specified in aModifierMask match these states, where 1=modifier set, and 0=modifier not set. Modifier key states are defined in TEventModifier.

Returns:: A handle identifying the capture key, or one of the system-wide error codes (if <0). Handles should be kept in order to be passed to CancelCaptureKey() later.

IMPORT_C void CAknAppUi::CaptureKeyL	(	TUint	aKeycode,
		TUint	aModifierMask,
		TUint	aModifier,
		TInt32 &	aHandle
	)

This is same as RWindowGroup::CaptureKey, except that this version takes S60 keymappings into account and captures the key that produces requested aKeyCode according to S60 keymappings.

This version leaves instead of returning an error code. Standard RWindowgroup::CaptureKey functionality takes place before S60 AppUi framework and has no knowledge of S60 keymappings. Note: This method requires same capabilites as RWindowGroup::CaptureKey()

Parameters:

	aKeycode	The key code for the key to be captured. Key codes for special keys are defined in TKeyCode.
	aModifier	Mask Only the modifier keys in this mask are tested against the states specified in aModifier.
	aModifier	The key is captured only when the modifier keys specified in aModifierMask match these states, where 1=modifier set, and 0=modifier not set. Modifier key states are defined in TEventModifier.
	aHandle	identifying the capture key. Handles should be kept in order to be passed to CancelCaptureKey() later.

IMPORT_C CEikButtonGroupContainer* CAknAppUi::Cba

(

)

Gets a pointer to the Command Button Area.

Returns:: Pointer to the CBA

IMPORT_C void CAknAppUi::ConstructL

(

)

From CEikAppUi.

Completes construction. The implementation of ConstructL() in CAknAppUi simply calls BaseConstructL().

Reimplemented from CAknAppUiBase.

IMPORT_C CAknToolbar* CAknAppUi::CurrentPopupToolbar

(

)

const

Gets a pointer to the current toolbar( view toolbar is priority ).

Returns:: Pointer to the current toolbar or NULL

void CAknAppUi::DecideWsClientBufferSizesL ( ) [protected]

Try to set window server buffer size to KAknDefaultWsBufferSize.

IMPORT_C void CAknAppUi::GetAliasKeyCodeL	(	TUint &	aCode,
		const TKeyEvent &	aKeyEvent,
		TEventCode	aType
	)

Gets keyboard layout specific keycode.

Uses given resolver SetAliasKeyCodeResolverL() if set, by default fetches alternative code from avkon server.

Parameters:

	aCode	reference to variable to contain new keycode
	aKeyEvent	reference to original, complete, event
	aType	indicating original event type

IMPORT_C TErrorHandlerResponse CAknAppUi::HandleError	(	TInt	aError,
		const SExtendedError &	aExtErr,
		TDes &	aErrorText,
		TDes &	aContextText
	)

Handles errors.

Parameters:

	aError	The error code.
	aExtErr	For extended error messages. Not used.
	aErrorText	Error text. Not used.
	aContextText	Text describing the context of the error. Not used.

Returns:: ENoDisplay if Error handled proper way, else EErrorNotHandled

IMPORT_C void CAknAppUi::HandleErrorL	(	TInt	aError,
		HBufC **	aErrorDesc,
		TBool	aShowNote = `ETrue`
	)	`[protected]`

IMPORT_C void CAknAppUi::HandleForegroundEventL ( TBool aForeground ) [protected]

Handles changes in keyboard focus when an application switches to, or from, the foreground.

Parameters:

aForeground ETrue if the application is in the foreground, otherwise EFalse.

Reimplemented from CAknAppUiBase.

Reimplemented in CAknViewAppUi.

IMPORT_C void CAknAppUi::HandleStatusPaneSizeChange ( ) [protected, virtual]

From MEikStatusPaneObserver.

Handles a change in the position or size of the screen area occupied by the status pane.

Implements MEikStatusPaneObserver.

Reimplemented in CAknViewAppUi.

IMPORT_C void CAknAppUi::HandleSystemEventL ( const TWsEvent & aEvent ) [protected]

From CCoeAppUi.

Handles system events generated by the window server.

Parameters:

aEvent

The window server event that occurred.

IMPORT_C void CAknAppUi::HandleTouchPaneSizeChange ( ) [virtual]

From .

Handles a change in the size or position of touch pane.

Implements MAknTouchPaneObserver.

virtual IMPORT_C void CAknAppUi::HandleViewDeactivation	(	const TVwsViewId &	aViewIdToBeDeactivated,
		const TVwsViewId &	aNewlyActivatedViewId
	)	`[virtual]`

From MCoeViewDeactivationObserver.

Handles the deactivation of the view identified by aViewIdToBeDeactivated before the newly activated view with id aNewlyActivatedViewId is marked as current. Default implementation calls iAvkonEnv->CloseAllIntermediateStates() without using aViewIdToBeDeactivated and aNewlyActivatedViewId.

Parameters: