Class MEikAutoMenuObserver

class MEikAutoMenuObserver : public MEikMenuObserver;

Description

Provides additional functionality to an auto menu title, in the form of an OfferHotKeyL() method, which is not required in the normal MEikMenuObserver.

Auto menu titles are used to ensure that some menu panes appear in every menu constructed for an application.

Derivation

• MEikCommandObserver - Command observers respond to user commands, and have the secondary function of creating custom controls on request for classes such as CEikToolbar, or user-defined classes

• MEikMenuObserver - Menu observer interface

• MEikAutoMenuObserver - Provides additional functionality to an auto menu title, in the form of an OfferHotKeyL() method, which is not required in the normal MEikMenuObserver

Members

Defined in MEikAutoMenuObserver:
CheckHotKeyNotDimmedL(), CreateCustomCommandControlL(), DynInitMenuBarL(), DynInitMenuPaneL(), HandleAttemptDimmedSelectionL(), HandleSideBarMenuL(), MEikAutoMenuObserver(), MEikCommandObserver_Reserved1(), MEikCommandObserver_Reserved2(), OfferHotKeyL(), OfferKeyToAppL(), Reserved_1_MenuObserver(), Reserved_2_MenuObserver(), RestoreMenuL(), SetEmphasis()

Inherited from MEikCommandObserver:
ProcessCommandL()

Inherited from MEikMenuObserver:
EMenuBar, EMenuPane, TMenuType

protected: IMPORT_C MEikAutoMenuObserver();

Description

virtual TKeyResponse OfferHotKeyL(const TKeyEvent &aKeyEvent, TEventCode aType)=0;

Description

Offers the specified hot key to the auto menu title.

Implement this function if you expect to handle any events from an auto menu.

Parameters

const TKeyEvent &aKeyEvent The key event. TEventCode aType The type of key event.

Return value

TKeyResponse The auto menu title's response.

virtual IMPORT_C void SetEmphasis(CCoeControl *aMenuControl, TBool aEmphasis);

Description

Sets the specified control's emphasis.

Parameters

CCoeControl *aMenuControl The control for which emphasis is set. TBool aEmphasis If ETrue the menu is emphasised. If EFalse the menu is not emphasised.

virtual IMPORT_C void HandleAttemptDimmedSelectionL(TInt aCommandId);

Description

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.

virtual IMPORT_C TBool CheckHotKeyNotDimmedL(TInt aCommandId);

Description

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.

Return value

TBool ETrue if the command should be passed to the application. This is the default. EFalse if the command should not be passed to the application.

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

Description

Restores the menu window aMenuWindow.

Parameters

CCoeControl *aMenuControl TInt aResourceId TMenuType aType

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

Description

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.

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

Description

As DynInitMenuPaneL(), but for menu bars.

Parameters

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

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

Description

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.

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

Description

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.

virtual IMPORT_C CCoeControl *CreateCustomCommandControlL(TInt aControlType);

Description

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

Parameters

TInt aControlType A custom control ID.

Return value

CCoeControl *

private: virtual IMPORT_C void Reserved_1_MenuObserver();

Description

private: virtual IMPORT_C void Reserved_2_MenuObserver();

Description

private: virtual IMPORT_C void MEikCommandObserver_Reserved1();

Description

Reserved for Future use

private: virtual IMPORT_C void MEikCommandObserver_Reserved2();

Description

Reserved for Future use