author | Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> |
Thu, 27 May 2010 12:53:14 +0300 | |
changeset 24 | 7d93ee07fb27 |
parent 15 | cf5481c2bc0b |
child 50 | 21fe8338c6bf |
permissions | -rw-r--r-- |
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/* |
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* Copyright (c) 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: VideoDeleteWorker class definition* |
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*/ |
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#ifndef __VIDEODELETEWORKER_H__ |
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#define __VIDEODELETEWORKER_H__ |
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// INCLUDES |
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#include <QObject> |
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#include <qvariant.h> |
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#include <qset.h> |
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#include <qlist.h> |
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#include <e32const.h> |
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#include <mpxitemid.h> |
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// FORWARD DECLARATIONS |
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class QTimer; |
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class VideoListDataModelPrivate; |
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class VideoCollectionClient; |
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class VideoDeleteWorker : public QObject |
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{ |
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/** |
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* define to be able to use signals and slots |
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*/ |
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Q_OBJECT |
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/** |
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* disable copy-constructor and assignment operator |
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*/ |
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Q_DISABLE_COPY(VideoDeleteWorker) |
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public: |
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/** |
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* Default constructor |
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*/ |
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VideoDeleteWorker(VideoCollectionClient &collection, QObject *parent = 0); |
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/** |
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* Destructor |
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*/ |
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~VideoDeleteWorker(); |
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/** |
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* Sets items into mRemoveBuffer. And starts deleting of items in |
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* blocks using mRequestWaitTimer interval |
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* |
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* @param itemList items to be deleted |
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*/ |
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void requestDelete(const QList<TMPXItemId> &itemList); |
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/** |
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* Removes item from the delete and pending buffer |
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* |
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* @param itemId item id to removed |
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* |
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* @returns a coutn of remaining requests |
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*/ |
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int removeFromRequest(TMPXItemId &itemId); |
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/** |
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* returns true in case there are items at the delete buffer |
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* |
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* @return bool |
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*/ |
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bool isDeleting(); |
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/** |
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* Updates error status |
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* |
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* @param status value to update |
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* @param data data to update |
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* |
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*/ |
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void updateStatus(int status, QVariant data); |
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/** |
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* returns latest status and data |
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* |
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* @param data to return |
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* |
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* @return status code |
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*/ |
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int getLastStatus(QVariant &data); |
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/** |
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* method resets status and statusdatas |
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*/ |
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void clearStatus(); |
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public slots: |
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/** |
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* Continues deleting in case there are items |
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* yet to be deleted |
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*/ |
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void continueSlot(); |
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private: |
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/** |
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* methods dumps all remaining deletes to collection |
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* without caring the result codes. |
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*/ |
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void flushAll(); |
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private slots: |
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/** |
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* creates a block of deleted items and calls collection |
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* to startup deletion |
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*/ |
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void execDeleteBlockSlot(); |
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signals: |
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/** |
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* Emitted if some delete startup fails. |
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* |
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* @param list of item ids whose edletion does not start |
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*/ |
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void deleteStartupFailed(QList<TMPXItemId>); |
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private: |
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/** |
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* reference to collection client. |
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* Not own. |
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*/ |
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VideoCollectionClient &mCollectionClient; |
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/** |
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* buffer for items to be removed |
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*/ |
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QSet<TMPXItemId> mRemoveBuffer; |
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/** |
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* timer whose interval is used between delete |
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* requests to collection |
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*/ |
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QTimer *mRequestWaitTimer; |
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/** |
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* last error status |
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*/ |
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int mLastStatus; |
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/** |
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* last error data |
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*/ |
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QVariant mLastStatusData; |
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}; |
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#endif // __VIDEODELETEWORKER_H__ |
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// End of file |
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