/*

* 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: MpMainWindow implementation.

*

*/

#include <hbapplication.h>

#include <hbview.h>

#include <mpxviewpluginqt.h>

#include <xqpluginloader.h>

#include <xqplugininfo.h>

#include <xqserviceutil.h>

#include "mpmainwindow.h"

#include "mpmediakeyhandler.h"

#include "mpcommondefs.h"

#include "mpviewbase.h"

#include "musicfetcher.h"

#include "mptrace.h"

/*!

   \class MpMainWindow

   \brief The MpMainWindow class provides Main Window functionalities.

   MpMainWindow handles activation of views

*/

/*!

    Constructs the main winsdow.

 */

MpMainWindow::MpMainWindow()

    : MpxViewFramework(),

      mMediaKeyHandler(0),

      mCollectionViewPlugin(0),

      mPlaybackViewPlugin(0),

      mCurrentViewPlugin(0),

      mPreviousViewPlugin(0),

      mMusicFetcher(0)

{

    TX_LOG

}

/*!

 Destructs the main window.

 */

MpMainWindow::~MpMainWindow()

{

    TX_ENTRY

    delete mMediaKeyHandler;

    delete mMusicFetcher;

    if (mCollectionViewPlugin) {

        mCollectionViewPlugin->destroyView();

        delete mCollectionViewPlugin;

    }

    if (mPlaybackViewPlugin) {

        mPlaybackViewPlugin->destroyView();

        delete mPlaybackViewPlugin;

    }

    TX_EXIT

}

/*!

Initialize and activate the collection view

 */

void MpMainWindow::initialize()

{

    TX_ENTRY

#ifdef _DEBUG

    QList<XQPluginInfo> impls;

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

    TX_LOG_ARGS("Available plugins:");

    for ( int i = 0; i < impls.size(); i++ ) {

        TX_LOG_ARGS("Plugin " << i << ": " << impls[i].uid() << ", " << impls[i].dllName() );

    }

#endif // _DEBUG

    if ( XQServiceUtil::isService() ) {

        // Music Fetcher mode

        // Set the Collection View and Playback View to fetcher mode

        mMusicFetcher = new MusicFetcher();

    }

    setViewSwitchingEnabled(false);

    XQPluginLoader collectionLoader(MpCommon::KCollectionViewUid);

    XQPluginLoader playbackLoader(MpCommon::KPlaybackViewUid);

    // Loading the collection plugin

    QObject* collectionInstance = collectionLoader.instance();

    TX_LOG_ARGS("collection instance: " << reinterpret_cast<int>(collectionInstance));

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

    TX_LOG_ARGS("collection view plugin: " << reinterpret_cast<int>(mCollectionViewPlugin));

    if ( mCollectionViewPlugin ) {

        mCollectionViewPlugin->createView();

        MpViewBase* collectionView = reinterpret_cast<MpViewBase*>(mCollectionViewPlugin->getView());

        if ( mMusicFetcher ) {

            collectionView->setViewMode(MpCommon::FetchView);

            collectionView->setTitle(mMusicFetcher->contextTitle());

            int err = connect(collectionView, SIGNAL(songSelected(QString)), mMusicFetcher, SLOT(itemSelected(QString)));

            TX_LOG_ARGS("connection error: " << err);

            err = connect(mMusicFetcher, SIGNAL(titleReady(const QString&)), collectionView, SLOT(setTitle(const QString&)));

            TX_LOG_ARGS("connection error: " << err);

        }

        else {

            collectionView->setTitle("Music");

        }

        // Collection view is the default view.

        activateView(MpMainWindow::CollectionView);

    }

    // Pre-load the playback plugin

    QObject* playbackInstance = playbackLoader.instance();

    TX_LOG_ARGS("playback instance: " << reinterpret_cast<int>(playbackInstance));

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

    TX_LOG_ARGS("playback view plugin: " << reinterpret_cast<int>(mPlaybackViewPlugin));

    if ( mPlaybackViewPlugin ) {

        mPlaybackViewPlugin->createView();

        MpViewBase* playbackView = reinterpret_cast<MpViewBase*>(mPlaybackViewPlugin->getView());

        if ( mMusicFetcher ) {

            playbackView->setViewMode(MpCommon::FetchView);

            playbackView->setTitle(mMusicFetcher->contextTitle());

            int err = connect(playbackView, SIGNAL(songSelected(QString)), mMusicFetcher, SLOT(itemSelected(QString)));

            TX_LOG_ARGS("connection error: " << err);

            err = connect(mMusicFetcher, SIGNAL(titleReady(const QString&)), playbackView, SLOT(setTitle(const QString&)));

            TX_LOG_ARGS("connection error: " << err);

        }

        else {

            playbackView->setTitle("Music");

        }

    }

    mMediaKeyHandler = new MpMediaKeyHandler();

    TX_EXIT

}

/*!

 Returns the current view plugin.

 */

MpxViewPlugin* MpMainWindow::currentViewPlugin()

{

    TX_LOG

    return mCurrentViewPlugin;

}

/*!

 Handle the \a commandCode.

 */

void MpMainWindow::handleCommand( int commandCode )

{

    TX_ENTRY_ARGS("commandCode=" << commandCode );

    switch ( commandCode ) {

        case MpCommon::Exit:

            if ( mCurrentViewPlugin ) {

                disconnectView();

            }

            qApp->quit();

            break;

        case MpCommon::ActivateCollectionView:

            activateView(CollectionView);

            break;

        case MpCommon::ActivatePlaybackView:

            activateView(PlaybackView);

            break;

    }

    TX_EXIT

}

/*!

 Activate the \a viewType view.

 */

void MpMainWindow::activateView(MpMainWindow::ViewType viewType)

{

    TX_ENTRY_ARGS("viewType=" << viewType );

    if ( mCurrentViewPlugin ) {

        disconnectView();

        mCurrentViewPlugin->deactivateView();

        mPreviousViewPlugin = mCurrentViewPlugin;

        mCurrentViewPlugin = 0;

    }

    if ( viewType == MpMainWindow::CollectionView && mCollectionViewPlugin ) {

        mCurrentViewPlugin = mCollectionViewPlugin;

    }

    else if ( viewType == MpMainWindow::PlaybackView && mPlaybackViewPlugin ) {

        mCurrentViewPlugin = mPlaybackViewPlugin;

    }

    if ( mCurrentViewPlugin ) {

        addView( mCurrentViewPlugin->getView() );

        mCurrentViewPlugin->activateView();

        connectView();

    }

    if ( mPreviousViewPlugin ) {

        removeView( mPreviousViewPlugin->getView() );

    }

    TX_EXIT

}

/*!

 Connect the signals to the current active view.

 */

void MpMainWindow::connectView()

{

    TX_ENTRY

	QObject::connect(mCurrentViewPlugin,

					 SIGNAL(command(int)),

					 this,

					 SLOT(handleCommand(int)));

	QObject::connect(this,

					 SIGNAL( orientationChanged( Qt::Orientation ) ),

					 mCurrentViewPlugin,

					 SLOT( orientationChange( Qt::Orientation ) ) );

    TX_EXIT

}

/*!

 Disonnect the signals from the current active view.

 */

void MpMainWindow::disconnectView()

{

    TX_ENTRY

	QObject::disconnect(mCurrentViewPlugin,

					 SIGNAL(command(int)),

					 this,

					 SLOT(handleCommand(int)));

	QObject::disconnect(this,

					 SIGNAL( orientationChanged( Qt::Orientation ) ),

					 mCurrentViewPlugin,

					 SLOT( orientationChange( Qt::Orientation ) ) );

    TX_EXIT

}