--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/videocollection/videocollectionview/inc/videocollectionuiloader.h	Tue Aug 31 15:15:55 2010 +0300
@@ -0,0 +1,257 @@
+/*
+* Copyright (c) 2009 Nokia Corporation and/or its subsidiary(-ies).
+* All rights reserved.
+* This component and the accompanying materials are made available
+* under the terms of "Eclipse Public License v1.0"
+* which accompanies this distribution, and is available
+* at the URL "http://www.eclipse.org/legal/epl-v10.html".
+*
+* Initial Contributors:
+* Nokia Corporation - initial contribution.
+*
+* Contributors:
+*
+* Description:
+*
+*/
+
+#ifndef _VIDEOCOLLECTIONUILOADER_H_
+#define _VIDEOCOLLECTIONUILOADER_H_
+
+// System includes
+#include <hbdocumentloader.h>
+#include <qhash.h>
+#include <qmap.h>
+#include <qset.h>
+
+#include "videocollectionuiloaderdef.h"
+
+// Forward declarations
+class QActionGroup;
+class HbAction;
+
+// Class declaration
+class VideoCollectionUiLoader:
+    public QObject,
+    public HbDocumentLoader
+{
+    Q_OBJECT
+    
+public:
+    /** actions used in menus and toolbars */
+    enum ActionIds
+    {
+        EActionSortBy          =  1,
+        EActionSortByDate,
+        EActionSortByName,
+        EACtionSortByItemCount,
+        EActionSortBySize,
+        EActionNewCollection,
+        EActionAddToCollection,
+        EActionDelete,
+        ETBActionAllVideos,
+        ETBActionCollections,
+        ETBActionServices,
+        ETBActionAddVideos,
+        ETBActionRemoveVideos
+    };
+    
+public:
+    /**
+     * C++ constructor.
+     */
+    VideoCollectionUiLoader();
+    
+    /**
+     * C++ destructor.
+     */
+    virtual ~VideoCollectionUiLoader();
+    
+    /**
+     * Adds data to ui loader loading queue.
+     */
+    void addData(QList<VideoCollectionUiLoaderParam> params,
+        QObject *receiver,
+        const char *slot);
+    
+    /**
+     * Returns the requested widget casted to correct type
+     *
+     * @param name Name of the widget
+     * @param loadIfNotFound Should the widget be loaded if not found in cache.
+     * @return Pointer to the widget
+     */
+    template<class T>
+    T* findWidget(const QString &name, bool loadIfNotFound = true)
+    {
+        return qobject_cast<T*>(doFindWidget(name, loadIfNotFound));
+    }
+
+    /**
+     * Returns the requested object casted to correct type
+     *
+     * @param name Name of the object
+     * @param loadIfNotFound Should the widget be loaded if not found in cache.
+     * @return Pointer to the object
+     */
+    template<class T>
+    T* findObject(const QString &name, bool loadIfNotFound = true)
+    {
+        return qobject_cast<T*>(doFindObject(name, loadIfNotFound));
+    }
+    
+    /**
+     * Set video services in use.
+     */
+    void setIsService(bool isService);
+    
+    /**
+     * load
+     */
+    void load(const QString &fileName, bool *ok = 0);
+
+    /**
+     * load
+     */
+    void load(const QString &fileName, const QString &section , bool *ok = 0);
+    
+public slots:
+    /**
+     * Starts loading ui components belonging to the defined phase.
+     */
+    void loadPhase(int loadPhase);
+    
+private slots:
+    /**
+     * Remove object from list since it has been already deleted.
+     */
+    void removeOrphanFromList(QObject *object);
+    
+signals:
+    /**
+     * Signals that object has been loaded asynchonously.
+     * 
+     * @param object, Object which was loaded.
+     * @param name, Name of the object in document.
+     * @return None.
+     */
+    void objectReady(QObject *object, const QString &name);
+    
+protected:
+
+    /**
+     * Loads widget from document.
+     * 
+     * @param name, Widget name.
+     * @param loadIfNotFound Should the widget be loaded if not found in cache.
+     * @return QGraphicsWidget*.
+     */
+    QGraphicsWidget* doFindWidget(const QString &name, bool loadIfNotFound);
+    
+    /**
+     * Loads object from document.
+     * 
+     * @param name, Object name.
+     * @return QObject*.
+     */
+    QObject* doFindObject(const QString &name, bool loadIfNotFound);
+    
+    /**
+     * Adds a ui section to async loading queue.
+     */
+    void addToQueue(VideoCollectionUiLoaderParam &param,
+        QObject *receiver,
+        const char *slot);
+    
+    /**
+     * Finds an object or widget from docml based on the parameter.
+     */
+    QObject* getObject(const VideoCollectionUiLoaderParam &param);
+    
+    /**
+     * Loads and prepares docml and sections if found from param.
+     */
+    bool prepareDocmlAndSection(const char *docml, const char *section);
+    
+    /**
+     * Init a specific object.
+     */
+    void initObject(QObject *object, const QString& name);
+    
+    /**
+     * Execute ui loader request.
+     */
+    QObject* executeRequest(const VideoCollectionUiLoaderParam &param);
+    
+    /**
+     * Gets index of the item in queue, if one found.
+     */
+    int indexInQueue(const QString &name);
+    
+    /**
+     * Removes request from queue.
+     */
+    void removeFromQueue(const QString &name);
+    
+private:
+    /** from QObject */
+    void timerEvent(QTimerEvent *event); 
+    
+    /** from HbDocumentLoader */
+    QObject *createObject(const QString& type, const QString &name);
+    
+private:
+    /**
+     * Run next async find request from queue.
+     */
+    void runNext();
+    
+    /**
+     * Check that set params are valid.
+     */
+    bool isValid(const VideoCollectionUiLoaderParam &param);
+    
+    /**
+     * Store object without a parent. 
+     */
+    void storeOrphans(const QObjectList &list);
+    
+private:
+    /** async queue */
+    QList<VideoCollectionUiLoaderParam> mQueue;
+    
+    /** timer id */
+    int mTimerId;
+    
+    /** list of initialized objects */
+    QHash<QString, QObject*> mObjects;
+    
+    /** menu actions */
+    QMap<ActionIds, HbAction*> mMenuActions;
+    
+    /** toolbar actions */
+    QMap<ActionIds, HbAction*> mToolbarActions;
+    
+    /** loaded docmls */
+    QSet<QString> mDocmls;
+    
+    /** loaded sections */
+    QSet<QString> mSections;
+    
+    /** action group for "sort by" actions */
+    QActionGroup* mSortGroup;
+    
+    /** is service */
+    bool mIsService;
+    
+    /** load phases currently active */
+    QSet<int> mPhases;
+    
+    /**
+     * objects without a parent - these needs to be deleted manually unless
+     * a parent is set.
+     */
+    QObjectList mOrphans;
+};
+
+#endif // _VIDEOCOLLECTIONUILOADER_H_