/*

* 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:  Implementation of VideoPlayerEngine

*

*/

#include <QApplication>

#include <hbinstance.h>

#include <xqpluginloader.h>

#include <xqplugininfo.h>

#include <xqserviceutil.h>

#include "videoplayerengine.h"

#include "mpxvideoplaybackwrapper.h"

#include "videoservices.h"

// -------------------------------------------------------------------------------------------------

// QVideoPlayerEngine()

// -------------------------------------------------------------------------------------------------

//

QVideoPlayerEngine::QVideoPlayerEngine(bool isService)

    : mIsService( isService )

    , mEmbedded(false)

    , mCurrentViewPlugin( 0 )

    , mPlaybackViewPlugin( 0 )

    , mCollectionViewPlugin( 0 )

    , mFileDetailsViewPlugin( 0 )

    , mPlaybackWrapper( 0 )

    , mVideoServices(0)

{

}

// -------------------------------------------------------------------------------------------------

// ~QVideoPlayerEngine()

// -------------------------------------------------------------------------------------------------

//

QVideoPlayerEngine::~QVideoPlayerEngine()

{

    if ( mVideoServices )

    {

    	mVideoServices->decreaseReferenceCount();

    	mVideoServices = 0;

    }

    if ( mCollectionViewPlugin ) 

    {

        mCollectionViewPlugin->destroyView();

    }

    if ( mPlaybackViewPlugin ) 

    {

        mPlaybackViewPlugin->destroyView();

    }

    if ( mFileDetailsViewPlugin ) 

    {

        mFileDetailsViewPlugin->destroyView();

    }

    delete mPlaybackWrapper;

    // disconnect all signals 

    disconnect();

}

// -------------------------------------------------------------------------------------------------

// initialize()

// -------------------------------------------------------------------------------------------------

//

void QVideoPlayerEngine::initialize()

{

    //

    // Clean up QVideoPlayerEngine when qApp try to quit

    //

    connect( qApp, SIGNAL( aboutToQuit() ), this, SLOT( handleQuit() ) );

    //

    // Create playback wrapper

    //

    if ( !mPlaybackWrapper )

    {

        mPlaybackWrapper = new QMpxVideoPlaybackWrapper();

        connect( mPlaybackWrapper,

                 SIGNAL( handlePlaybackView( int ) ),

                 this,

                 SLOT( handleCommand( int ) ) );

    }

    //

    // Get VideoServices instance

    //

    if( mIsService && !mVideoServices )

    {

		mVideoServices = VideoServices::instance(this);

		connect( mVideoServices, SIGNAL(activated(int)), this, SLOT(handleCommand(int)));

    }

    QList<XQPluginInfo> impls;

    XQPluginLoader::listImplementations("org.nokia.mmdt.MpxViewPlugin/1.0", impls);

    //

    // Pre-load collectionview and playbackview plugins

    //

    loadPlugin( MpxHbVideoCommon::CollectionView );

    if ( mCollectionViewPlugin ) 

    {

        mCollectionViewPlugin->createView();

    }

    //

    // default view in the app is the collection view.

    //

    if(!mIsService)

    {

        activateView( MpxHbVideoCommon::CollectionView );

}

// -------------------------------------------------------------------------------------------------

// handleCommand()

// -------------------------------------------------------------------------------------------------

//

void QVideoPlayerEngine::handleCommand( int commandCode )

{

    switch ( commandCode )

    {

        case MpxHbVideoCommon::ActivateCollectionView:

        {

            if ( mCurrentViewPlugin != mCollectionViewPlugin )

            { 

                activateView( MpxHbVideoCommon::CollectionView );

            }

            break;

        }

        case MpxHbVideoCommon::ActivatePlaybackView:

        {

            if ( mCurrentViewPlugin != mPlaybackViewPlugin )

            {                

                activateView( MpxHbVideoCommon::PlaybackView );                

            }

            break;

        }

        case MpxHbVideoCommon::ActivateVideoDetailsView:

        {

            if ( mCurrentViewPlugin != mFileDetailsViewPlugin )

			{

				activateView( MpxHbVideoCommon::VideoDetailsView );                

            }

            break;

        }

        {

			{

			}

        default:

        {

            break;

        }

    }    

}

// -------------------------------------------------------------------------------------------------

// activateView()

// activate view based on view type.

// -------------------------------------------------------------------------------------------------

//

void QVideoPlayerEngine::activateView( MpxHbVideoCommon::MpxHbVideoViewType viewType )

{

    disconnectView();

    if ( mCurrentViewPlugin )

    {

        mCurrentViewPlugin->deactivateView();

        mCurrentViewPlugin = NULL;

    }

    if ( viewType == MpxHbVideoCommon::CollectionView && mCollectionViewPlugin  ) 

    {

        if ( mIsService &&  (VideoServices::EPlayback == mVideoServices->currentService()) )

            {

                qApp->quit();

                XQServiceUtil::toBackground(false);

                return;

            }

            else

            {

                mCurrentViewPlugin = mCollectionViewPlugin;

            }

    }

    {

        mCurrentViewPlugin = mPlaybackViewPlugin;

    }

    {

        mCurrentViewPlugin = mFileDetailsViewPlugin;

    }

    else

    {

        // invalid plugin activation request, do nothing

        return;

    }

    connectView();

    mCurrentViewPlugin->activateView();

}

// -------------------------------------------------------------------------------------------------

// loadPlugin()

// -------------------------------------------------------------------------------------------------

//

void QVideoPlayerEngine::loadPlugin( MpxHbVideoCommon::MpxHbVideoViewType viewType )

{

    int viewTypeUid( 0 );

    if ( viewType == MpxHbVideoCommon::CollectionView ) 

    {

        viewTypeUid = MpxHbVideoCommon::KMpxVideoPluginDllCollectionUid;

    }

    else if ( viewType == MpxHbVideoCommon::PlaybackView ) 

    {

        viewTypeUid = MpxHbVideoCommon::KMpxVideoPluginDllPlaybackUid;

    }

    else if( viewType == MpxHbVideoCommon::VideoDetailsView )

    {

        viewTypeUid = MpxHbVideoCommon::KMpxVideoPluginDllFileDetailsUid;

    }

    if ( viewTypeUid )

    {

        // activate the collection view

        XQPluginLoader pluginLoader( viewTypeUid );

        QObject* instance = pluginLoader.instance();

        if ( instance )

        {

            if ( viewType == MpxHbVideoCommon::CollectionView ) 

            {

                mCollectionViewPlugin = qobject_cast<MpxViewPlugin*>( instance )->viewPlugin();

            }

            else if ( viewType == MpxHbVideoCommon::PlaybackView )

            {

                mPlaybackViewPlugin = qobject_cast<MpxViewPlugin*>( instance )->viewPlugin();

            }

            else if ( viewType == MpxHbVideoCommon::VideoDetailsView )

            {

                mFileDetailsViewPlugin = qobject_cast<MpxViewPlugin*>( instance )->viewPlugin();

            }

        }

    }

}

// -------------------------------------------------------------------------------------------------

// connectView()

// connect application to view by setting up the signals and slots.

// -------------------------------------------------------------------------------------------------

//

void QVideoPlayerEngine::connectView()

{

    connect( mCurrentViewPlugin,

             SIGNAL( command( int ) ),

             this,

             SLOT( handleCommand( int ) ) );

}

// -------------------------------------------------------------------------------------------------

// disconnectView()

// connect application to view by setting up the signals and slots.

// -------------------------------------------------------------------------------------------------

//

void QVideoPlayerEngine::disconnectView()

{

    if ( mCurrentViewPlugin )

    {

        disconnect( mCurrentViewPlugin,

                    SIGNAL( command( int ) ),

                    this,

                    SLOT( handleCommand( int ) ) );   

    }

}

// -------------------------------------------------------------------------------------------------

// handleQuit()

// -------------------------------------------------------------------------------------------------

//

void QVideoPlayerEngine::handleQuit()

{

    delete this;

}

// -------------------------------------------------------------------------------------------------

// playMedia()

// -------------------------------------------------------------------------------------------------

//

void QVideoPlayerEngine::playMedia( QString filePath )

{

    mPlaybackWrapper->playMedia( filePath );

}

// -------------------------------------------------------------------------------------------------

// setEmbedded()

// -------------------------------------------------------------------------------------------------

//

void QVideoPlayerEngine::setEmbedded()

{

    mEmbedded = true;

}

// End of file