williamr@2: /*
williamr@2: * Copyright (c) 2002-2005 Nokia Corporation and/or its subsidiary(-ies).
williamr@2: * All rights reserved.
williamr@2: * This component and the accompanying materials are made available
williamr@2: * under the terms of the License "Symbian Foundation License v1.0" to Symbian Foundation members and "Symbian Foundation End User License Agreement v1.0" to non-members
williamr@2: * which accompanies this distribution, and is available
williamr@2: * at the URL "http://www.symbianfoundation.org/legal/licencesv10.html".
williamr@2: *
williamr@2: * Initial Contributors:
williamr@2: * Nokia Corporation - initial contribution.
williamr@2: *
williamr@2: * Contributors:
williamr@2: *
williamr@2: * Description:  Interface for handling control's state change.
williamr@2: *
williamr@2: */
williamr@2: 
williamr@2: 
williamr@2: 
williamr@2: #if !defined(__AKNEDSTSOBS_H__)
williamr@2: #define __AKNEDSTSOBS_H__
williamr@2: 
williamr@2: // FORWARD DECLERATIONS
williamr@2: class CAknEdwinState;
williamr@2: 
williamr@2: 
williamr@2: // CLASS DECLERATION
williamr@2: /**
williamr@2: * Interface for handling control's state change.
williamr@2: * 
williamr@2: * @since Series 60 0.9
williamr@2: */
williamr@2: class MAknEdStateObserver
williamr@2: 	{
williamr@2: public:
williamr@2: 	/** 
williamr@2:     * Observer event types.
williamr@2:     */
williamr@2: 	enum EAknEdwinStateEvent
williamr@2:         {
williamr@2:         /** The state has been updated */ 
williamr@2:         EAknEdwinStateEventStateUpdate, 
williamr@2:         /** The input mode has been updated */     
williamr@2:         EAknEdwinStateInputModeUpdate,
williamr@2:         /** The case mode has been updated */   
williamr@2:         EAknEdwinStateCaseModeUpdate,
williamr@2:         /** The local language has been updated */    
williamr@2:         EAknEdwinStateLocalLanguageUpdate, 
williamr@2:         /** The flags have been updated */  
williamr@2:         EAknEdwinStateFlagsUpdate,
williamr@2:         /** The edwin state needs to be sync'ed */
williamr@2:         EAknSyncEdwinState,
williamr@2:         /** Cursor position has changed in editor */
williamr@2:         EAknCursorPositionChanged,
williamr@2:         /** VKB/HW activation request */
williamr@2:         EAknActivatePenInputRequest,
williamr@2:         /** Prompt Text has changed */
williamr@2:         EAknEdwinStatePromptUpdate
williamr@2:         };
williamr@2: public:
williamr@2: 	/**
williamr@2:     * Handles an state event from a observed control.
williamr@2:     * Pure virtual function that is called when a control, for which this
williamr@2:     * control is the observer, calls @c ReportAknedstateEventL().
williamr@2:     * It should be implemented by the observer control and should handle all
williamr@2:     * state events sent by controls it observed. 
williamr@2:     * @param aAknEdwinState The control that sent the event.
williamr@2:     * @param aEventType The event type defined in @c EAknEdwinStateEvent.
williamr@2:     */
williamr@2: 	virtual void HandleAknEdwinStateEventL(CAknEdwinState* aAknEdwinState,
williamr@2: 		EAknEdwinStateEvent aEventType) = 0;
williamr@2: 	};
williamr@2: 
williamr@2: #endif