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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:
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*
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*/
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#ifndef _VIDEOCOLLECTIONUILOADER_H_
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#define _VIDEOCOLLECTIONUILOADER_H_
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// System includes
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#include <hbdocumentloader.h>
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#include <qhash.h>
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#include <qmap.h>
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#include <qset.h>
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#include "videocollectionuiloaderdef.h"
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// Forward declarations
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class QActionGroup;
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class HbAction;
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// Class declaration
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class VideoCollectionUiLoader:
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public QObject,
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public HbDocumentLoader
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{
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Q_OBJECT
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public:
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/** actions used in menus and toolbars */
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enum ActionIds
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{
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EActionSortBy = 1,
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EActionSortByDate,
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EActionSortByName,
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EACtionSortByItemCount,
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EActionSortBySize,
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EActionNewCollection,
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EActionAddToCollection,
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EActionDelete,
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ETBActionAllVideos,
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ETBActionCollections,
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ETBActionServices,
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ETBActionAddVideos,
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ETBActionRemoveVideos
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};
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public:
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/**
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* C++ constructor.
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*/
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VideoCollectionUiLoader();
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/**
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* C++ destructor.
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*/
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virtual ~VideoCollectionUiLoader();
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/**
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* Adds data to ui loader loading queue.
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*/
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void addData(QList<VideoCollectionUiLoaderParam> params,
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QObject *receiver,
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const char *slot);
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/**
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* Returns the requested widget casted to correct type
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*
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* @param name Name of the widget
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* @return Pointer to the widget
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*/
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template<class T>
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T* findWidget(const QString &name)
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{
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return qobject_cast<T*>(doFindWidget(name));
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}
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/**
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* Returns the requested object casted to correct type
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*
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* @param name Name of the object
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* @return Pointer to the object
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*/
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template<class T>
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T* findObject(const QString &name)
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{
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return qobject_cast<T*>(doFindObject(name));
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}
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/**
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* Set video services in use.
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*/
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void setIsService(bool isService);
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/**
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* load
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*/
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void load(const QString &fileName, bool *ok = 0);
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/**
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* load
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*/
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void load(const QString &fileName, const QString §ion , bool *ok = 0);
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public slots:
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/**
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* Starts loading ui components belonging to the defined phase.
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*/
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void loadPhase(int loadPhase);
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private slots:
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/**
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* Remove object from list since it has been already deleted.
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*/
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void removeOrphanFromList(QObject *object);
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signals:
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/**
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* Signals that object has been loaded asynchonously.
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*
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* @param object, Object which was loaded.
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* @param name, Name of the object in document.
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* @return None.
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*/
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void objectReady(QObject *object, const QString &name);
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protected:
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/**
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* Loads widget from document.
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*
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* @param name, Widget name.
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* @return QGraphicsWidget*.
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*/
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QGraphicsWidget* doFindWidget(const QString &name);
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/**
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* Loads object from document.
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*
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* @param name, Object name.
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* @return QObject*.
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*/
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QObject* doFindObject(const QString &name);
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/**
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* Adds a ui section to async loading queue.
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*/
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void addToQueue(VideoCollectionUiLoaderParam ¶m,
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QObject *receiver,
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const char *slot);
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/**
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* Finds an object or widget from docml based on the parameter.
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*/
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QObject* getObject(const VideoCollectionUiLoaderParam ¶m);
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/**
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* Loads and prepares docml and sections if found from param.
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*/
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bool prepareDocmlAndSection(const char *docml, const char *section);
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/**
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* Init a specific object.
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*/
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void initObject(QObject *object, const QString& name);
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/**
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* Execute ui loader request.
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*/
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QObject* executeRequest(const VideoCollectionUiLoaderParam ¶m);
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/**
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* Gets index of the item in queue, if one found.
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*/
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int indexInQueue(const QString &name);
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/**
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* Removes request from queue.
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*/
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void removeFromQueue(const QString &name);
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private:
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/** from QObject */
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void timerEvent(QTimerEvent *event);
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/** from HbDocumentLoader */
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QObject *createObject(const QString& type, const QString &name);
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private:
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/**
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* Run next async find request from queue.
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*/
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void runNext();
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/**
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* Check that set params are valid.
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*/
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bool isValid(const VideoCollectionUiLoaderParam ¶m);
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/**
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* Store object without a parent.
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*/
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void storeOrphans(const QObjectList &list);
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private:
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/** async queue */
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QList<VideoCollectionUiLoaderParam> mQueue;
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/** timer id */
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int mTimerId;
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/** list of initialized objects */
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QHash<QString, QObject*> mObjects;
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/** menu actions */
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QMap<ActionIds, HbAction*> mMenuActions;
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/** toolbar actions */
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QMap<ActionIds, HbAction*> mToolbarActions;
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/** loaded docmls */
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QSet<QString> mDocmls;
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/** loaded sections */
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QSet<QString> mSections;
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/** action group for "sort by" actions */
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QActionGroup* mSortGroup;
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/** is service */
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bool mIsService;
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/** load phases currently active */
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QSet<int> mPhases;
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/**
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* objects without a parent - these needs to be deleted manually unless
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* a parent is set.
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*/
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QObjectList mOrphans;
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};
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#endif // _VIDEOCOLLECTIONUILOADER_H_
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