videocollection/videocollectionview/inc/videolistwidget.h
author Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
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Revision: 201023 Kit: 2010125
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/*
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* Copyright (c) 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:   Videolist content widget
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*
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*/
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#ifndef VIDEOLISTWIDGET_H
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#define VIDEOLISTWIDGET_H
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#include <hbview.h>
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#include <hblistview.h>
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#include <qmap.h>
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#include <qpointer.h>
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#include <mpxitemid.h>
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#include "videoservices.h"
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#include "videocollectioncommon.h"
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class VideoSortFilterProxyModel;
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class VideoServices;
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class VideoCollectionUiLoader;
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class HbAction;
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class HbMenu;
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class QTimer;
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class QItemSelection;
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class VideoServices;
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/**
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 * Widget for displaying all videos, either using list- or grid view.
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 * Widget contains 2 widgets to be used for different orientation in the stacked layout.
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 *
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 * Depending on the orientation and it's change, corresponding view is set active.
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 *
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 */
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class VideoListWidget : public HbListView
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{
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    Q_OBJECT
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    Q_DISABLE_COPY(VideoListWidget)
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public:
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    /**
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     * Contructor.
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     * @param uiloader
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     * @param parent parent of this widget
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     */
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    VideoListWidget(VideoCollectionUiLoader *uiLoader, HbView *parent = 0);
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    /**
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     * Destructor.
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     *
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     */
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    virtual ~VideoListWidget();
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    /**
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     * Method creates colleciton wrapper, grid and list views,
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     * layout and activates correct view based on the current orientation
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     * 
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     * @param model Model for this list view.
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     * @param videoservices
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     * @param level presetted level for the widget
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     * @return int 0 initialization ok, < 0 if fails.
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     */
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    int initialize(VideoSortFilterProxyModel &model, 
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                   VideoServices* videoServices  = 0,
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                   VideoCollectionCommon::TCollectionLevels level = VideoCollectionCommon::ELevelInvalid);
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    /**
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     * Method enables and displays current active view
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     *
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     * @return int 0 initialization ok, < 0 if fails.
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     */
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    int activate();
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    /**
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     * Method enables and displays current active view
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     *
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     * @return int 0 initialization ok, < 0 if fails.
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     */
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    int activate(VideoCollectionCommon::TCollectionLevels level);
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    /**
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     * Method disables and hides current active view
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     *
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     */
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    void deactivate();
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    /**
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     * returns current level provided by activate
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     * 
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     * @return TCollectionLevels
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     */
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    VideoCollectionCommon::TCollectionLevels getLevel();
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    /**
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     * returns widget's model
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     * 
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     * @return VideoSortFilterProxyModel*
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     */
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    VideoSortFilterProxyModel* getModel();
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public:
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    /**
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     * Called by the fw when some item is tapped. Method check that
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     * index is valid and calls open item for collectionwrapper to
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     * open media object throught collection.
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     * 
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     * @param midelIndex, item's index
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     */
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    void emitActivated (const QModelIndex &modelIndex);
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    /**
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     * Overwritten from Abstractitemview.
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     * Sets local selection mode variable value used locally in checks. 
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     * If provided value is mode provided by HbAbstractitemview sets 
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     * it as view selection mode othervise NoSelection is setted
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     * 
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     * @param mode 
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	 */
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    void setSelectionMode(int mode);
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signals:
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    /**
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     * Command signal.
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     *
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     * @param int command id
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     */
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    void command(int);
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    /**
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     * Signals collection view's state. Used to indicate
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     * view incase some collection item is opened
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     *
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     * @param true if opened, false if closed.
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     * @param optional name string
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     */
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    void collectionOpened(bool, const QString&, const QModelIndex&);
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    /**
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     * signal is connected to service's itemSelected -slot
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     */
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    void fileUri(const QString&);
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public slots:
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    /**
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     * Signaled by HbInputDialog when it's closed. 
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     */
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    void renameDialogFinished(HbAction *action);
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    /**
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     * Signaled by HbMessageBox when it's closed.
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     */
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    void deleteItemDialogFinished(HbAction *action);
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    /**
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     * Signaled by HbMessageBox when it's closed.
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     */
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    void removeCollectionDialogFinished(HbAction *action);
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    /**
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     * called or signaled when delayed initialization is reauired for the widget
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     *
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     */
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    void doDelayedsSlot();
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15
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protected slots:
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    /**
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     * Signaled by the fw when item is long pressed.
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     * Popup menu for the particular item is opened.
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     * Saves current selected item's index to mCurrentIndex
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     */
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    void longPressedSlot(HbAbstractViewItem *item, const QPointF &point);
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private slots:
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    /**
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     * Signaled for one item deletion.
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     *
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     */
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    void deleteItemSlot();
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    /**
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     * Signaled for item rename.
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     *
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     */
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    void renameSlot();
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    /**
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     * Signaled to add an item into a collection.
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     *
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     */
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    void addToCollectionSlot();
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    /**
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     * Signaled to remove a particular video from collection
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     */
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    void removeFromCollectionSlot();
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    /**
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     * Signaled to remove a user created collection.
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     *
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     */
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    void removeCollectionSlot();
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    /**
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     * Signaled when details will be selected from the videolist's
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     * context menu. Maps mCurrentIndex to model's source index and
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     * calls collection wrapper to open details
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     *
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     */
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    void openDetailsSlot();
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    /**
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     * Signaled when item's default functionality is initialized from context menu.
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     * Calls emitActivated for actually axecuting the functionality
15
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     */
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    void openItemSlot();
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    /**
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     * Signaled when item's play functionality is initialized from context menu.
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     * Calls doActivateItem for actually executing the functionality.
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     */
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    void playItemSlot();
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    /**
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     * Signaled when stepping back from collection in collection view
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     *
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     */
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    void back();
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	/**
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	 * Signaled when view scrolling starts, pauses thumbnail creation.
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	 *
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	 */
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	void scrollingStartedSlot();	
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	/**
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	 * Signaled when view scrolling ends, initiates thumbnail fetching
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	 * at index of first visible item and enables creation of thumbnails.
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	 *
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	 */
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	void scrollingEndedSlot();
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	/**
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	 * Signaled when view scroll position changes, initiates timer to 
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	 * fetch thumbnails at index of first visible item.
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	 *
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	 * @param newPosition scroll position 
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	 *
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	 */
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	void scrollPositionChangedSlot(const QPointF &newPosition);
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	/**
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	 * Signaled when scroll position timer triggers. Starts fetching thumbnails
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	 * for visible items.
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	 * 
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	 */
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	void scrollPositionTimerSlot();
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    /**
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     * Fetches thumbnails for the visible items.
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     *
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     */
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    void fetchThumbnailsForVisibleItems();
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private:
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    enum TContextActionIds
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    {
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    	EActionDelete = 1,
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        EActionDetails,
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        EActionRemove,
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        EActionAddToCollection,
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        EActionRemoveCollection,
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        EActionRename,
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    	EActionPlay,
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    	EActionOpen,
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    	EActionAttach
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    };
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    /**
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     * Method creates popup menu for list items.
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     *
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     */
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    void createContextMenu();
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    /**
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     * Method sets correct popup menu for specific list items.
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     *
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     */
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    void setContextMenu();
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    /**
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     * Method sets correct popup menu during browsing service.
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     */
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    void setBrowsingServiceContextMenu();
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    /**
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     * Method connects signals needed by the widget
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     *
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     * @return int 0 if connect ok, < 0 if connect fails
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     */
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    int connectSignals();
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    /**
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     * Method disconnects signals needed by the widget
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     *
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     */
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    void disConnectSignals();
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    /**
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     * Return if this is a browsing service.
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     */
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    bool isBrowsingService() const;
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    /**
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     * Set navigation action.
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     */
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    void setNavigationAction();
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    /**
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     * Does the actual emitActivated functionality. Called from either emitActivated or
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     * openItemSlot.
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     * 
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     * @param index Index of the item.
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     */
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    void doEmitActivated (const QModelIndex &index);
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    /**
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     * handles single item activation. Either from 
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     * user's single tap or from default action at context menu.
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     * 
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     * @param index of item
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     */
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   351
    void doActivateItem(const QModelIndex &index);
15
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   352
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   353
private:
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   354
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parents:
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   355
    /**
cf5481c2bc0b Revision: 201011
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   356
     * Provided model
cf5481c2bc0b Revision: 201011
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   357
     * Not own.
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   358
     */
46
adbe7d5ba2f5 Revision: 201023
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diff changeset
   359
    QPointer<VideoSortFilterProxyModel> mModel;
15
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parents:
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   360
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parents:
diff changeset
   361
    /**
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   362
     * pointer to videoservices instance
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parents:
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   363
     */
cf5481c2bc0b Revision: 201011
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parents:
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   364
    VideoServices* mVideoServices;
cf5481c2bc0b Revision: 201011
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
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   365
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
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   366
    /**
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parents:
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   367
     * map containing pointers to main menu actions
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parents:
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   368
     */
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   369
    QMap<TContextActionIds, HbAction*> mContextMenuActions;
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parents:
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   370
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parents:
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   371
    /**
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parents:
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   372
     * current level indicating content currently showing: 
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parents:
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   373
     * category or videos
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parents:
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   374
     */
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parents:
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   375
    VideoCollectionCommon::TCollectionLevels mCurrentLevel;
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parents:
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   376
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parents:
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   377
	/**
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   378
     * True if signals have been connected
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parents:
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   379
     */
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parents:
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   380
	bool                       mSignalsConnected;
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parents:
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   381
	
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parents:
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   382
    /**
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parents:
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   383
     * Boolean for knowing when the app was started as a service.
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parents:
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   384
     */
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parents:
diff changeset
   385
	bool                       mIsService;
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parents:
diff changeset
   386
cf5481c2bc0b Revision: 201011
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parents:
diff changeset
   387
	/**
17
69946d1824c4 Revision: 201015
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parents: 15
diff changeset
   388
     * Navigation softkey action.
15
cf5481c2bc0b Revision: 201011
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parents:
diff changeset
   389
     */
17
69946d1824c4 Revision: 201015
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diff changeset
   390
	HbAction 				   *mNavKeyAction;
15
cf5481c2bc0b Revision: 201011
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parents:
diff changeset
   391
cf5481c2bc0b Revision: 201011
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parents:
diff changeset
   392
    /**
cf5481c2bc0b Revision: 201011
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parents:
diff changeset
   393
     * Item sensitive context menu
cf5481c2bc0b Revision: 201011
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parents:
diff changeset
   394
     */
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parents:
diff changeset
   395
    HbMenu                      *mContextMenu;
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parents:
diff changeset
   396
    
cf5481c2bc0b Revision: 201011
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parents:
diff changeset
   397
    /**
cf5481c2bc0b Revision: 201011
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parents:
diff changeset
   398
     * loacal selection mode
cf5481c2bc0b Revision: 201011
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parents:
diff changeset
   399
	 */
cf5481c2bc0b Revision: 201011
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   400
    int                        mSelectionMode;
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   401
    
cf5481c2bc0b Revision: 201011
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   402
    /**
cf5481c2bc0b Revision: 201011
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   403
     * Timer used to report thumbnail fetches class index of 
cf5481c2bc0b Revision: 201011
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   404
     * first visible item when view is scrolling. 
cf5481c2bc0b Revision: 201011
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   405
     */
cf5481c2bc0b Revision: 201011
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   406
    QTimer                      *mScrollPositionTimer;
cf5481c2bc0b Revision: 201011
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   407
    
cf5481c2bc0b Revision: 201011
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   408
    /**
cf5481c2bc0b Revision: 201011
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   409
     * ui loade object, not owned
cf5481c2bc0b Revision: 201011
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   410
     */
cf5481c2bc0b Revision: 201011
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   411
    VideoCollectionUiLoader     *mUiLoader;
28
c48470be1ba7 Revision: 201021
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents: 24
diff changeset
   412
    
c48470be1ba7 Revision: 201021
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents: 24
diff changeset
   413
    /**
c48470be1ba7 Revision: 201021
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents: 24
diff changeset
   414
     * Service being provided
c48470be1ba7 Revision: 201021
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents: 24
diff changeset
   415
     */
c48470be1ba7 Revision: 201021
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents: 24
diff changeset
   416
    VideoServices::TVideoService mService;
15
cf5481c2bc0b Revision: 201011
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parents:
diff changeset
   417
};
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
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diff changeset
   418
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parents:
diff changeset
   419
#endif // VIDEOLISTWIDGET_H