author | Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> |
Thu, 17 Dec 2009 08:45:44 +0200 | |
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/* |
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* Copyright (c) 2008-2009 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: Thumbnail Composer plugin |
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* |
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*/ |
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/** |
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* @internal reviewed 12/07/2007 by Simon Brooks |
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*/ |
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#ifndef __CTHUMBNAILCOMPOSERPLUGIN_H__ |
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#define __CTHUMBNAILCOMPOSERPLUGIN_H__ |
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#include <ComposerPlugin.h> |
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#include <MdEObject.h> |
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#include <MpxCollectionObserver.h> |
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class MMPXCollectionUtility; |
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class CMPXCollectionPath; |
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class CGlxThumbnailComposerPlugin; |
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/** |
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* Timer to allow inactivity delay if background generation task is cancelled |
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*/ |
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class CGlxThumbnailCompeserInactivityTimer : public CTimer |
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{ |
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public: |
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~CGlxThumbnailCompeserInactivityTimer(); |
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static CGlxThumbnailCompeserInactivityTimer* NewL(TInt aPriority, CGlxThumbnailComposerPlugin& aCallback); |
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void After(TTimeIntervalMicroSeconds32 aInterval); |
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private: |
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CGlxThumbnailCompeserInactivityTimer(TInt aPriority, CGlxThumbnailComposerPlugin& aCallback); |
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private: // from CActive |
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void RunL(); |
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void DoCancel(); |
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TInt RunError(TInt aError); |
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private: |
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CGlxThumbnailComposerPlugin& iCallback; |
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}; |
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|
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/** |
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* Composer plugin to initiate background generation when new items are |
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* harvested by the MDS harvester. |
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* |
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* @author David Holland |
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*/ |
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NONSHARABLE_CLASS( CGlxThumbnailComposerPlugin ) : |
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public CComposerPlugin, MMPXCollectionObserver |
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{ |
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public: |
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/** |
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* Construction |
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*/ |
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static CGlxThumbnailComposerPlugin* NewL(); |
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/** |
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* Destruction |
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*/ |
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~CGlxThumbnailComposerPlugin(); |
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private: // From CComposerPlugin |
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TBool IsComposingComplete(); |
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void SetObservers(); |
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void RemoveObservers(); |
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private: // From MMdEObjectObserver |
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#ifdef RD_MDS_2_0 |
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void HandleObjectAdded(CMdESession& aSession, |
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const RArray<TItemId>& aObjectIdArray); |
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void HandleObjectModified(CMdESession& aSession, |
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const RArray<TItemId>& aObjectIdArray); |
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void HandleObjectRemoved(CMdESession& aSession, |
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const RArray<TItemId>& aObjectIdArray); |
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#else |
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/** |
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* See @ref MMdEObjectObserver::HandleObjectNotification |
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*/ |
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void HandleObjectNotification(CMdESession& aSession, |
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TObserverNotificationType aType, |
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const RArray<TItemId>& aObjectIdArray); |
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#endif |
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private: // From MMPXCollectionObserver |
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void HandleCollectionMediaL( const CMPXMedia& aMedia, TInt aError ); |
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void HandleCollectionMessage( CMPXMessage* aMsg, TInt aErr ); |
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void HandleOpenL( const CMPXMedia& aEntries, |
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TInt aIndex, TBool aComplete, TInt aError ); |
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void HandleOpenL( const CMPXCollectionPlaylist& aPlaylist, |
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TInt aError ); |
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void HandleCommandComplete( CMPXCommand* aCommandResult, |
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TInt aError ); |
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private: |
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/** |
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* Private constructor |
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*/ |
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CGlxThumbnailComposerPlugin(); |
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|
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/** |
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* 2nd phase construction |
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*/ |
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void ConstructL(); |
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|
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/** |
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* Add observers to MdE session. |
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*/ |
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void SetObserversL(); |
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|
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void DoHandleCollectionMessageL( const CMPXMessage& aMsg ); |
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|
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/** |
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* Send next media request to the collection. |
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*/ |
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void RequestItemL(); |
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|
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public: |
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/** |
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* Open "all" collection with thumbnail loadability filter. |
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*/ |
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void DoOpenCollectionL(); |
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|
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/** |
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* Send next media request to the collection. |
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*/ |
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void DoRequestItemL(); |
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|
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/** |
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* Free resources and go to idle state. |
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*/ |
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void ReturnToIdle(); |
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/** |
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* Delay display state check, if screen is on. |
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*/ |
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void DelayDisplayStateCheck(); |
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|
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/** |
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* Callback for iCollectionCloser |
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*/ |
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void CloseCollection(); |
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public: |
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/** |
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* Enumeration of states for the plugin. |
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*/ |
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enum TComposerState |
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{ |
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EStateIdle, |
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EStateFirstOpening, |
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EStateOpening, |
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EStateActiveLarge, |
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EStateActiveSmall, |
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EStateCleanup, |
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EStateClosing |
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}; |
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|
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/** Current state of the plugin */ |
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TComposerState iState; |
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|
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private: |
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/** Isolated collection utility (owned) */ |
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MMPXCollectionUtility* iCollectionUtility; |
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|
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/** Path from collection (owned) */ |
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CMPXCollectionPath* iPath; |
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|
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/** Index of item to thumbnail */ |
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TInt iCurrentIndex; |
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|
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/** Timer to restart Background Harvesting once inactive */ |
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CGlxThumbnailCompeserInactivityTimer* iInactivityTimer; |
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|
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TInt iLastError; |
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}; |
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|
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#endif // __CTHUMBNAILCOMPOSERPLUGIN_H__ |