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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 selection dialog
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*
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*/
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#ifndef VIDEOLISTSELECTIONDIALOG_H
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#define VIDEOLISTSELECTIONDIALOG_H
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#include <hbselectiondialog.h>
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#include <qset.h>
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#include <mpxitemid.h>
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#include <qpointer.h>
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class QGraphicsItem;
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class QTimer;
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class VideoProxyModelGeneric;
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class VideoCollectionUiLoader;
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class VideoListSelectionDialog: public HbSelectionDialog
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{
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/**
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* definition required for emitting / connecting signals
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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(VideoListSelectionDialog)
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public:
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enum TSelectionFunction
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{
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ENoFunction = -1,
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EDeleteVideos,
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EAddToCollection,
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ERemoveFromCollection,
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ECreateCollection,
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ESelectCollection
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};
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/**
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* Constructor
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*
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* @param parent item's parent component
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*/
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VideoListSelectionDialog(QGraphicsItem *parent=0);
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/**
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* Destructor
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*/
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~VideoListSelectionDialog();
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/**
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* Method setups provided title and videolist content widget.
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* Prepares dialog for showing.
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* If either provided title is empty or widget is NULL, dialog
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* is in invalid state and cannot be shown using exec.
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*
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* @param type selection dialog function typy
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* @param activeItem id of item that the selection concerns
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*/
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void setupContent(VideoListSelectionDialog::TSelectionFunction type, TMPXItemId activeItem = TMPXItemId::InvalidId());
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public slots:
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/**
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* Shows modal dialog build from the provided Videolistwidget.
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*
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*/
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void exec();
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/**
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* Signaled by HbInputDialog when it's closed.
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*/
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void newAlbumNameDialogFinished(HbAction *action);
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private slots:
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/**
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* disables or enables popup's primary action in case selection changes
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*/
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void selectionChangedSlot();
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/**
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* Handles model ready signal from model.
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*/
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void modelReadySlot();
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/**
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* Handles album list ready signal from model.
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*/
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void albumListReadySlot();
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/**
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* Primary action triggered signal slot.
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*
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*/
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void primaryActionTriggeredSlot();
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/**
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* called when dialog has been finished
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*
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* @param action causing the finished
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*/
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void finishedSlot(HbAction *action);
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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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/**
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* Method initializes dialog by getting all ui components and
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* checking if they are valid
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*
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* @return bool true if inisializaion ok
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*/
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bool initDialog();
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/**
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* Method initializes list by setting the model
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*
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* @param model to be set
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*
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* @return bool true if inisializaion ok
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*/
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bool initList(VideoProxyModelGeneric *model);
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/**
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* Method activated dialog based on value in mTypeOfSelection
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*
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* @param changeMode true if dialog mode is changed from multiselection to noselection while visible
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*
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*/
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void activateSelection(bool changeMode = false);
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/**
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* connects all required signals into appropriate slots
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* for selection mode
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*/
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void connectSignals();
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/**
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* disconnects all signals
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*/
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void disconnectSignals();
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/**
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* Gets selected item's name from appropriate model.
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*
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* @return QString item's name
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*/
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QString getSelectedName();
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/**
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* Finalizes the operation.
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*/
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void finalize(QString albumName = "");
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private:
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/**
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* type for defining selection functionality
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*/
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VideoListSelectionDialog::TSelectionFunction mTypeOfSelection;
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/**
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* Selected video items
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*/
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QSet<TMPXItemId> mSelectedVideos;
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/**
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* selected single items album id
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*/
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TMPXItemId mSelectedAlbumId;
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/**
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* Text for a new album.
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*/
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QString mNewAlbumText;
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/**
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* Video list model
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*/
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VideoProxyModelGeneric *mModel;
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/**
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* Boolean to know if the model is ready or not.
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*/
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bool mModelReady;
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/**
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* Boolean to know if album list is ready or not.
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*/
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bool mAlbumListReady;
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/**
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* Boolean to know if listview has been initialised or not.
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*/
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bool mListInitialised;
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/**
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* Action to accept the selection dialog.
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*/
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QPointer<HbAction> mPrimaryAction;
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/**
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* Action to cancel the selection dialog.
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*/
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QPointer<HbAction> mSecondaryAction;
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/**
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* Timer used to report thumbnail fetches class index of
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* first visible item when view is scrolling.
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*/
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QPointer<QTimer> mScrollPositionTimer;
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};
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#endif //VIDEOLISTSELECTIONDIALOG_H
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