/*

* 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:

*     The source file of filemanager view manager

*

*/

#include "fmviewmanager.h"

#include "fmmainwindow.h"

#include "fmdriverview.h"

#include "fmfileview.h"

#include "fmfindview.h"

#include "fmbackupview.h"

#include "fmrestoreview.h"

#include "fmdeletebackupview.h"

#include "fmsplitview.h"

#include "fmoperationservice.h"

#include "fmoperationbase.h"

#include "fmdrivewatcher.h"

#include "fmdialog.h"

#include "fmdlgutils.h"

#include <hbview.h>

#include <hbmainwindow.h>

#include <hbapplication.h>

#include <hbactivitymanager.h>

#include <QFileSystemWatcher>

#include <QFileInfo>

#include <QPixmap>

FmViewManager *FmViewManager::mViewManager = 0;

FmDlgCloseUnit::FmDlgCloseUnit( FmDialog *dialog ) : mDialog( dialog )

{

}

FmDlgCloseUnit::~FmDlgCloseUnit()

{

}

void FmDlgCloseUnit::addAssociatedDrives( QString drives )

{

	for( int i = 0; i< drives.length(); ++i ) {

		if( !mAssociatedDrives.contains( drives[i], Qt::CaseInsensitive ) ) {

			mAssociatedDrives += drives[i];

		}

	}

}

void FmDlgCloseUnit::removeAssociatedDrives( QString drives )

{

	for( int i = 0; i < drives.length(); ++i ){

		mAssociatedDrives.remove( drives[i], Qt::CaseInsensitive );

	}

}

QString FmDlgCloseUnit::associatedDrives()

{

	return mAssociatedDrives;

}

FmDialog *FmDlgCloseUnit::dialog()

{

	return mDialog;

}

{

    mMainWindow = mainWindow;

    mDriveWatcher = new FmDriveWatcher( this );

    mDriveWatcher->setObjectName( "driveWatcher" );

    mDriveWatcher->startWatch();

    QMetaObject::connectSlotsByName( this );

}

FmViewManager::~FmViewManager(void)

{

    FmViewBase *view = static_cast<FmViewBase *>( mMainWindow->currentView() );

    while( view ) {

        mMainWindow->removeView( view );

        delete view;

        view = static_cast<FmViewBase *>( mMainWindow->currentView() );

    }

    delete mOperationService;

    mOperationService = 0;

    mDriveWatcher->cancelWatch();

    delete mDriveWatcher;

    mDriveWatcher = 0;

}

FmViewManager *FmViewManager::CreateViewManager( FmMainWindow* mainWindow )

{

    if( !mViewManager ){

        mViewManager = new FmViewManager( mainWindow );

    }

    return mViewManager;

}

void FmViewManager::RemoveViewManager()

{

    delete mViewManager;

    mViewManager = 0;

}

FmViewManager *FmViewManager::viewManager()

{

    return mViewManager;

}

FmOperationService *FmViewManager::operationService()

{

    if ( !mOperationService ) {

        mOperationService = new FmOperationService( this );

        mOperationService->setObjectName( "operationService" );

    }    

    return mOperationService;

}

void FmViewManager::popViewAndShow()

{

    FmViewBase *view = static_cast<FmViewBase *>( mMainWindow->currentView() );

    view->setNavigationAction( 0 );

    // grap the screen when only the drive view is in view stack.

    if( viewCount() == 1 ) {

        mScreenShot = QPixmap::grabWidget(mMainWindow, mMainWindow->rect());

    }

    delete view;

    if( viewCount() < 1 )

    {

        mMainWindow->close();

    }

}

void FmViewManager::on_operationService_driveSpaceChanged( FmOperationBase *operationBase )

{

    Q_UNUSED( operationBase );

    // request drive view to refresh

    emit driveSpaceChanged();

}

void FmViewManager::on_operationService_notifyFinish( FmOperationBase *operationBase )

{

    if( !operationBase ){

        Q_ASSERT_X( false, "FmViewManager",

                "NULL is not accepted in on_operationService_notifyFinish()" );

        return;

    }

    if( operationBase->operationType() == FmOperationService::EOperationTypeBackup )

        {

        // after finish backup, we need refresh backup date in backup view.

        emit refreshBackupDate();

        }

}

int FmViewManager::viewCount()

{

    return mMainWindow->views().count();

}

void FmViewManager::createDriverView()

{

    FmDriverView *driverView= new FmDriverView();

    mMainWindow->addView( driverView );

    mMainWindow->setCurrentView( driverView );

    HbActivityManager* activityManager = qobject_cast<HbApplication*>(qApp)->activityManager();        

    bool ok = activityManager->removeActivity("FMMemoryStoragesList");

    connect( this, SIGNAL( driveSpaceChanged() ), 

        driverView, SLOT( refreshDrive() ) );

    // Refresh drive view when gaining foreground

    // ( switch back to filemanager from home screen or any other applications )

    connect( mMainWindow, SIGNAL( revealed() ), 

        driverView, SLOT( refreshDrive() ) );

    // use Qt::QueuedConnection because synchronous refresh is not work well while

    // connected with another OTG device which have more than one external drive in it.

    // File server only give driveChanged event once, but two drive is inserted.

    // Synchronous refresh will miss another drive.

    // So use Qt::QueuedConnection to performance asynchronous refresh.

    connect( this, SIGNAL( driveChanged() ), 

        driverView, SLOT( refreshDrive() ), Qt::QueuedConnection );

}

void FmViewManager::createFileView( const QString &path,

                                    bool enableBackPathCheck, bool disableFind )

{

    QFileInfo fileInfo( path );

    QString absolutePath = fileInfo.absoluteFilePath();

    QString checkedPath = FmUtils::checkDriveToFolderFilter( absolutePath );

    if( FmUtils::isDriveAvailable( path ) ) {

        if( FmErrNone != FmUtils::isPathAccessabel( checkedPath )  ) {

            checkedPath.clear();

        }

    }

    if( checkedPath.isEmpty() ) {

        return;

    }

    FmFileView *fileView= new FmFileView();

    fileView->setRootPath( checkedPath );

    if( enableBackPathCheck ) {

        fileView->setRootLevelPath( checkedPath );

    }

    fileView->setFindDisabled( disableFind );

    mMainWindow->addView( fileView );

    mMainWindow->setCurrentView( fileView );

    connect( this, SIGNAL( driveChanged() ), //emit when drive changed.

        fileView, SLOT( on_driveChanged() ) );

    connect( fileView, SIGNAL( popViewAndShow() ),                  //emit when fileView need delete itself and pop&show view from stack.

        this, SLOT( popViewAndShow() ), Qt::QueuedConnection );

}

{

    FmFindView *findView= new FmFindView();

    mMainWindow->addView( findView );

    mMainWindow->setCurrentView( findView );

 }

void FmViewManager::createSplitView()

{

    FmSplitView *splitView = new FmSplitView();

    mMainWindow->addView( splitView );

    mMainWindow->setCurrentView( splitView );

}

void FmViewManager::createBackupView()

{

    FmBackupView *backupView= new FmBackupView();

    mMainWindow->addView( backupView );

    mMainWindow->setCurrentView( backupView );

    connect( this, SIGNAL( driveChanged() ), //emit when need refresh model

            backupView, SLOT( refreshModel() ) );

    connect( this, SIGNAL( refreshBackupDate() ),  //emit when need refresh backup date

            backupView, SLOT( refreshBackupDate() ) );

}

void FmViewManager::createRestoreView()

{

    FmRestoreView *restoreView= new FmRestoreView();

    mMainWindow->addView( restoreView );

    mMainWindow->setCurrentView( restoreView );

    connect( this, SIGNAL( driveChanged() ), restoreView, SLOT( refreshRestoreView() ) );

}

void FmViewManager::createDeleteBackupView()

{

   FmDeleteBackupView *deleteBackupView= new FmDeleteBackupView();

    mMainWindow->addView( deleteBackupView );

    mMainWindow->setCurrentView( deleteBackupView );

    connect( this, SIGNAL( driveChanged() ), deleteBackupView, SLOT( refreshDeleteBackupView() ) );

}

Qt::Orientation FmViewManager::orientation(){

    return mMainWindow->orientation();

}

void FmViewManager::on_driveWatcher_driveAddedOrChanged()

{

    FM_LOG( QString( "FmViewManager::on_driveWatcher_driveAddedOrChanged start" ) );

    emit driveChanged();

	checkDlgCloseUnit();

    FM_LOG( QString( "FmViewManager::on_driveWatcher_driveAddedOrChanged end" ) );

}

void FmViewManager::checkDlgCloseUnit()

{

	foreach( FmDlgCloseUnit* unit, mDlgCloseUnitList ) {

		QString drives( unit->associatedDrives() );

		for( int i = 0; i < drives.length(); i++ ) {

			QString drive( drives[i] + QString( ":/" ) );

			if( !FmUtils::isDriveAvailable( drive ) ) {

				FM_LOG( " close Dialog start " );

				unit->dialog()->close();

				FM_LOG( " close Dialog end " );

			}

		}

	}

}

void FmViewManager::saveActivity()

{    

    //grap the screen when current view is drive view.

    FmDriverView *driveView = qobject_cast<FmDriverView *>(mMainWindow->currentView());

    if ( ( driveView != 0 ) && ( driveView->viewType() == FmViewBase::EDriverView ) ) {

        mScreenShot = QPixmap::grabWidget(mMainWindow, mMainWindow->rect());

    }

    QVariantHash metadata;

    metadata.insert("screenshot", mScreenShot);

    HbActivityManager* activityManager = qobject_cast<HbApplication*>(qApp)->activityManager();     

    // add the activity to the activity manager

    bool ok = activityManager->addActivity("FMMemoryStoragesList", QVariant(), metadata);

}

void FmViewManager::onAboutToChangeView(HbView * oldView, HbView *newView)

{

    Q_UNUSED(newView);

    //grap the screen when oldView is drive view.

    FmDriverView *driveView = qobject_cast<FmDriverView *>(oldView);

    if ( ( driveView != 0 ) && ( driveView->viewType() == FmViewBase::EDriverView ) ) {        

        mScreenShot = QPixmap::grabWidget(mMainWindow, mMainWindow->rect());

    }

}