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MEikMenuObserver Class Reference

class MEikMenuObserver : public MEikCommandObserver

Menu observer interface.

Menu observers cooperate with menu bars and menu panes, initialising them before display and responding to menu events appropriately. CEikAppUi implements MEikMenuObserver, so these functions may be implemented on an application's App UI.

Inherits from

MEikMenuObserver
- MEikCommandObserver

Public Member Functions
IMPORT_C TBool	CheckHotKeyNotDimmedL(TInt)
IMPORT_C CCoeControl *	CreateCustomCommandControlL(TInt)
IMPORT_C void	DynInitMenuBarL(TInt, CEikMenuBar *)
IMPORT_C void	DynInitMenuPaneL(TInt, CEikMenuPane *)
IMPORT_C void	HandleAttemptDimmedSelectionL(TInt)
IMPORT_C void	HandleSideBarMenuL(TInt, const TPoint &, TInt, const CEikHotKeyTable *)
IMPORT_C void	OfferKeyToAppL(const TKeyEvent &, TEventCode)
IMPORT_C void	RestoreMenuL(CCoeControl *, TInt, TMenuType)
void	SetEmphasis(CCoeControl *, TBool)

Protected Member Functions
	MEikMenuObserver()

Private Member Functions
IMPORT_C void	MEikCommandObserver_Reserved1()
IMPORT_C void	MEikCommandObserver_Reserved2()
IMPORT_C void	Reserved_1_MenuObserver()
IMPORT_C void	Reserved_2_MenuObserver()

Inherited Functions
	MEikCommandObserver::MEikCommandObserver()
	MEikCommandObserver::ProcessCommandL(TInt)

Public Member Enumerations
enum	TMenuType { EMenuPane, EMenuBar }

Private Attributes
TInt	iMEikMenuObserver_Spare1

Constructor & Destructor Documentation

MEikMenuObserver()

IMPORT_C

MEikMenuObserver

(

)

[protected]

Constructor for MEikMenuObserver

Member Functions Documentation

CheckHotKeyNotDimmedL(TInt)

IMPORT_C TBool

CheckHotKeyNotDimmedL

(

TInt

aCommandId

)

[virtual]

Determines whether a command should be passed to the application.

Applications can choose whether to respond to a hotkey event that corresponds to a dimmed item. This function is called when a recognised key press is offered to a menu bar or a menu pane to determine whether to send the corresponding command.

Parameters

TInt aCommandId

The command corresponding to the selected hotkey.

CreateCustomCommandControlL(TInt)

IMPORT_C CCoeControl *

CreateCustomCommandControlL

(

TInt

aControlType

)

[virtual]

This functions simpy wraps MEikCommandObserver::CreateCustomCommandControlL(TInt aControlType) MEikCommandObserver::CreateCustomCommandControlL(TInt aControlType)

Parameters

TInt aControlType

A custom control ID.

DynInitMenuBarL(TInt, CEikMenuBar *)

IMPORT_C void	DynInitMenuBarL	(	TInt	aResourceId,
			CEikMenuBar *	aMenuBar
		)	[virtual]

As DynInitMenuPaneL(), but for menu bars.

Parameters

TInt aResourceId
CEikMenuBar * aMenuBar	The in-memory representation of the menu bar.

DynInitMenuPaneL(TInt, CEikMenuPane *)

IMPORT_C void	DynInitMenuPaneL	(	TInt	aResourceId,
			CEikMenuPane *	aMenuPane
		)	[virtual]

Dynamically initialises a menu pane.

The Uikon framework calls this function, if it is implemented in a menu's observer, immediately before the menu pane is activated.

Typically this function should inquire the value of application data, and initialise menu items accordingly. This includes dimming menu items, changing their text, setting the state of checked items and radio buttons and dynamically adding items to a menu.

Parameters

TInt aResourceId
CEikMenuPane * aMenuPane	The in-memory representation of the menu pane.

HandleAttemptDimmedSelectionL(TInt)

IMPORT_C void

HandleAttemptDimmedSelectionL

(

TInt

aCommandId

)

[virtual]

Responds to a user's attempt to select a dimmed item by displaying a message (CEikonEnv::InfoMsg()) to indicate the item is unavailable.

Parameters

TInt aCommandId

Command ID for the menu item.

HandleSideBarMenuL(TInt, const TPoint &, TInt, const CEikHotKeyTable *)

IMPORT_C void	HandleSideBarMenuL	(	TInt	aResourceId,
			const TPoint &	aPos,
			TInt	aModifiers,
			const CEikHotKeyTable *	aTable
		)	[virtual]

This function is invoked by CEikMenuBar's input handling functions.

It may be overridden to handle displaying menus launched from the side bar.

Parameters

TInt aResourceId	Resource ID identifying the menu to launch.
const TPoint & aPos	Position of the menu's reference point. For sidebar menus, this is the top-right corner.
TInt aModifiers	Key modifiers held when the menu was invoked.
const CEikHotKeyTable * aTable	The menu bar's hotkey items.

MEikCommandObserver_Reserved1()

IMPORT_C void

MEikCommandObserver_Reserved1

(

)

[private, virtual]

Reserved for Future use

MEikCommandObserver_Reserved2()

IMPORT_C void

MEikCommandObserver_Reserved2

(

)

[private, virtual]

Reserved for Future use

OfferKeyToAppL(const TKeyEvent &, TEventCode)

IMPORT_C void	OfferKeyToAppL	(	const TKeyEvent &	aKeyEvent,
			TEventCode	aType
		)	[virtual]

Called if a key which is not used by the menu is pressed while the observer's menu is displaying.

Parameters

const TKeyEvent & aKeyEvent	The key event the menu is offering to the app.
TEventCode aType	Event code type.

Reserved_1_MenuObserver()

IMPORT_C void

Reserved_1_MenuObserver

(

)

[private, virtual]

Reserved_2_MenuObserver()

IMPORT_C void

Reserved_2_MenuObserver

(

)

[private, virtual]

RestoreMenuL(CCoeControl *, TInt, TMenuType)

IMPORT_C void	RestoreMenuL	(	CCoeControl *	aMenuControl,
			TInt	aResourceId,
			TMenuType	aType
		)	[virtual]

Restores the menu window aMenuWindow.

Parameters

CCoeControl * aMenuControl	The menu window to be restored.
TInt aResourceId	The menu's ID.
TMenuType aType	The type of menu being restored.

SetEmphasis(CCoeControl *, TBool)

void	SetEmphasis	(	CCoeControl *	aMenuControl,
			TBool	aEmphasis
		)	[pure virtual]

Called by the Uikon framework to handle the emphasising or de-emphasising of a menu window.

CEikMenuBar objects call this on their observer to emphasise themselves when they are displayed, and de-emphasise themselves when they stop displaying.

Parameters

CCoeControl * aMenuControl	The menu control.
TBool aEmphasis	ETrue to emphasize the menu, EFalse otherwise.

Member Enumerations Documentation

Enum TMenuType

Menu types

Enumerators

EMenuPane	Menu pane.
EMenuBar	Menu bar.

Member Data Documentation

TInt iMEikMenuObserver_Spare1

TInt

iMEikMenuObserver_Spare1

[private]