author | Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> |
Tue, 25 May 2010 12:29:32 +0300 | |
branch | RCL_3 |
changeset 25 | 137ebc85284b |
parent 9 | f966699dea19 |
permissions | -rw-r--r-- |
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/* |
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* Copyright (c) 2007-2008 Nokia Corporation and/or its subsidiary(-ies). |
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* All rights reserved. |
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* This component and the accompanying materials are made available |
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* under the terms of "Eclipse Public License v1.0" |
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* which accompanies this distribution, and is available |
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* at the URL "http://www.eclipse.org/legal/epl-v10.html". |
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* |
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* Initial Contributors: |
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* Nokia Corporation - initial contribution. |
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* |
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* Contributors: |
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* |
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* Description: event handler class |
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* |
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*/ |
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#ifndef C_HNEVENTHANDLER_H |
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#define C_HNEVENTHANDLER_H |
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#include <liwcommon.h> |
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class CHnMetaDataModel; |
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class CHnMdAction; |
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class MLiwInterface; |
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class CLiwServiceHandler; |
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class CLiwGenericParamList; |
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class CHnMdBaseKey; |
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class TLiwVariant; |
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class CHnMdItem; |
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class CHnActionModel; |
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class MHnMdModelEventObserver; |
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class CHnServiceHandler; |
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class MHnControllerInterface; |
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|
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/** |
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* Event handler class. |
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* |
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* Event Handler is designed to handle events. |
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* It reveives an event id from the UI, |
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* mapps this event into an appropriate action, |
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* and runs this action. |
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* |
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* @lib hnpresentationmodel |
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* @since S60 5.0 |
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* @ingroup group_hnpresentationmodel |
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*/ |
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NONSHARABLE_CLASS(CHnEventHandler) : public CBase, public MLiwNotifyCallback |
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{ |
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public: // Constructors and destructor |
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/** |
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* Two-phased constructor. |
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* |
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* @since S60 5.0 |
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* @param aModelObserver Model event observer. |
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* @param aController Interface enabling to issues request to Hn engine. |
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* @return Fully constructed object. |
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*/ |
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static CHnEventHandler* NewL( MHnMdModelEventObserver& aModelObserver, |
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MHnControllerInterface& aController ); |
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/** |
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* Two-phased constructor. |
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* |
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* @since S60 5.0 |
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* @param aModelObserver Model event observer. |
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* @param aController Interface enabling to issues request to Hn engine. |
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* @return Fully constructed object. |
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*/ |
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static CHnEventHandler* NewLC( MHnMdModelEventObserver& aModelObserver, |
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MHnControllerInterface& aController); |
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/** |
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* Destructor. |
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* |
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* @since S60 5.0 |
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*/ |
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~CHnEventHandler(); |
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/** |
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* Executes the action that was found in the Model. |
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* |
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* @since S60 v3.2 |
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* @see CHnActionModel |
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* @param aActionModel A pointer to the object of the CHnActionModel class. |
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* @return Error code. KErrNone in case of a correct execution (even if |
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given action was not found). KErrNotFound in case of incorrect |
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action parameters. |
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*/ |
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IMPORT_C TInt ExecuteActionL( CHnActionModel* aActionModel ); |
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private: |
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/** |
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* Constructor for performing 1st stage construction |
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* |
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* @since S60 5.0 |
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* @param aModelObserver A model event observer reference. |
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* @param aController A HH controller reference. |
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*/ |
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CHnEventHandler( MHnMdModelEventObserver& aModelObserver, |
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MHnControllerInterface& aController ); |
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/** |
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* EPOC default constructor for performing 2nd stage construction |
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* |
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* @since S60 5.0 |
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*/ |
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void ConstructL(); |
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/** |
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* Notifies UI about actions that can be passed back to the UI, |
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* i.e. openning nested suites, widget change. |
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* |
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* @since S60 5.0 |
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* @param aActionModel Model of the action. |
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* @return Error code |
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*/ |
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TInt ExecuteInternalActionL( CHnActionModel* aActionModel ); |
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/** |
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* Executes action from Extension Manager. |
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* |
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* @since S60 v5.0 |
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* @param aActionModel Model of the action. |
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* @return Error code |
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*/ |
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TInt ExecuteExtensionManagerActionL( CHnActionModel* aActionModel ); |
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/** |
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* Uses default mechanism to execute an action. |
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* |
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* @since S60 v5.0 |
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* @param aActionModel Model of the action. |
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* @return Error code |
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*/ |
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TInt ExecuteStandardActionL( CHnActionModel* aActionModel ); |
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/** |
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* Extracts extension uid from the action. |
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* |
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* @since S60 v5.0 |
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* @param aInterface Interface to invoke action on. |
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* @param aUid The resulting UID. |
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* @return Error code |
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*/ |
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TInt ExtractUidFromActionL( const TDesC8& aInterface, TUid& aUid ); |
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// from MLiwNotifyCallback |
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public : |
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/** |
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* Handles notification. |
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* |
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* @param aCmdId The Id of the command triggered. |
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* @param aEventId The Id of the event. |
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* @param aEventParamList Parameters to event. |
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* @param aInParamList Input parameter list. |
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* |
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* @return Error code. |
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*/ |
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TInt HandleNotifyL( TInt aCmdId, TInt aEventId, |
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CLiwGenericParamList& aEventParamList, |
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const CLiwGenericParamList& aInParamList ); |
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private: // data |
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/** |
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* Not own. |
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* Reference to HnEngine - Event observer. |
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*/ |
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MHnMdModelEventObserver& iEventObserver; |
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/** |
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* Own. |
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*/ |
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CHnServiceHandler* iServiceHandler; |
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/** |
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* Not own. |
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* Reference to App UI - Event observer. |
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*/ |
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MHnControllerInterface& iControllerInterface; |
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/** |
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* ETrue if a standard asynchroneous action is being executed by |
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* this event handler. |
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*/ |
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TBool iIsExecutingStandardAsyncAction; |
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}; |
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#endif // C_HNEVENTHANDLER_H |