/*

* 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 QMPXVideoPlaybackProgressBar

*

*/

#include <QTime>

#include <QTimer>

#include <QGraphicsSceneMouseEvent>

#include <hblabel.h>

#include <hbframeitem.h>

#include <hbframedrawer.h>

#include <hbprogressslider.h>

#include <hbextendedlocale.h>

#include "mpxvideo_debug.h"

#include "mpxvideoplaybackprogressbar.h"

#include "mpxvideoplaybackdocumentloader.h"

#include "mpxvideoplaybackcontrolscontroller.h"

const int KSeekingTimeOut = 250;

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

// QMPXVideoPlaybackProgressBar::QMPXVideoPlaybackProgressBar

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

//

QMPXVideoPlaybackProgressBar::QMPXVideoPlaybackProgressBar( 

        QMPXVideoPlaybackControlsController* controller )

    : mController( controller )

    , mDuration( -1 )

    , mDraggingPosition( 0 )

    , mSetPosition( -1 )

    , mNeedToResumeAfterSetPosition( false )

    , mInitialized( false )

    , mSliderDragging( false )

    , mLongTimeFormat( false )

    , mLiveStreaming( false )

    , mSeekingTimer( NULL )

{

    MPX_ENTER_EXIT(_L("QMPXVideoPlaybackProgressBar::QMPXVideoPlaybackProgressBar()"));

}

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

// QMPXVideoPlaybackProgressBar::~QMPXVideoPlaybackProgressBar

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

//

QMPXVideoPlaybackProgressBar::~QMPXVideoPlaybackProgressBar()

{

    MPX_ENTER_EXIT(_L("QMPXVideoPlaybackProgressBar::~QMPXVideoPlaybackProgressBar()"));

    if ( mSeekingTimer )

    {

        disconnect( mSeekingTimer, SIGNAL( timeout() ), this, SLOT( handleSeekingTimeout() ) );

        if ( mSeekingTimer->isActive() )

        {

            mSeekingTimer->stop();

        }

        delete mSeekingTimer;

        mSeekingTimer = NULL;

    }

}

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

// QMPXVideoPlaybackProgressBar::initialize

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

//

void QMPXVideoPlaybackProgressBar::initialize()

{

    MPX_ENTER_EXIT(_L("QMPXVideoPlaybackProgressBar::initialize()"));

    QMPXVideoPlaybackDocumentLoader *loader = mController->layoutLoader();

    //

    // Don't need to initialize buttons once it gets initialized

    //

    if ( loader && ! mInitialized )

    {

        mInitialized = true;

        mLiveStreaming = 

                ( mController->fileDetails()->mPlaybackMode == EMPXVideoLiveStreaming )? true:false;

        //

        // Create a timer for seeking. 

        // We will issue SetPosition every KSeekingTimeOut msec to show the current frame to user

        //

        mSeekingTimer = new QTimer();

        mSeekingTimer->setSingleShot( false );

        mSeekingTimer->setInterval( KSeekingTimeOut );

        connect( mSeekingTimer, SIGNAL( timeout() ), this, SLOT( handleSeekingTimeout() ) );

        //

        // progress slider

        //

        QGraphicsWidget *widget = loader->findWidget( QString( "progressSlider" ) );

        mProgressSlider = qobject_cast<HbProgressSlider*>( widget );

        connect( mProgressSlider, SIGNAL( sliderPressed() ), this, SLOT( handleSliderPressed() ) );

        connect( mProgressSlider, SIGNAL( sliderReleased() ), this, SLOT( handleSliderReleased() ) );

        connect( mProgressSlider, SIGNAL( sliderMoved( int ) ), this, SLOT( handleSliderMoved( int ) ) );

        //

        // If we init the progress bar after pp sends the duration informatin

        // we need to set the duration manually 

        //

        durationChanged( (qreal)mController->fileDetails()->mDuration / (qreal)KPbMilliMultiplier );

        //

        // Set the position to 0 until we get position information

        //

        positionChanged( 0 );

        //

        // Set framedrawer for semi transparent background

        //

    }

}

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

// QMPXVideoPlaybackProgressBar::durationChanged

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

//

void QMPXVideoPlaybackProgressBar::durationChanged( int duration )

{

    MPX_DEBUG(_L("QMPXVideoPlaybackControlsController::durationChanged duration = %d"), duration );

    if ( mLiveStreaming )

    {

        mProgressSlider->setMaxText( "Live" );

    }

    else

    {

        mDuration = duration;

        if ( ( mDuration / 3600 ) > 0 )

        {

            mLongTimeFormat = true;

        }

        else

        {

            mLongTimeFormat = false;

        }

        mProgressSlider->setMaxText( valueToReadableFormat( mDuration ) );

    }

    mProgressSlider->setRange( 0, mDuration );

}

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

// QMPXVideoPlaybackProgressBar::positionChanged

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

//

void QMPXVideoPlaybackProgressBar::positionChanged( int position )

{

    MPX_DEBUG(_L("QMPXVideoPlaybackControlsController::positionChanged position = %d"), position );

    //

    // While dragging event, don't update old position information from mpx framework

    //

    if ( ! mSliderDragging )

    {

        updatePostion( position );

    }

}

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

// QMPXVideoPlaybackProgressBar::updatePostion

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

//

void QMPXVideoPlaybackProgressBar::updatePostion( int position )

{

    if ( position < 0 )

    {

        position = 0;

    }

    else if ( position > mDuration && ! mLiveStreaming )

    {

        position = mDuration;

    }

    MPX_DEBUG(_L("QMPXVideoPlaybackProgressBar::updatePostion position = %d"), position );

    mProgressSlider->setMinText( valueToReadableFormat( position ) );

    //

    // Don't need to set the slider for live streaming

    //

    if ( ! mLiveStreaming )

    {

        mProgressSlider->setSliderValue( position );

        mProgressSlider->setProgressValue( position );

    }

}

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

// QMPXVideoPlaybackProgressBar::valueToReadableFormat

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

//

QString QMPXVideoPlaybackProgressBar::valueToReadableFormat( int value )

{

    MPX_DEBUG(_L("QMPXVideoPlaybackControlsController::valueToReadableFormat value = %d"), value);

    int hour = value / 3600;

    value = value % 3600;

    int minutes = value / 60;

    value = value % 60;

    int second = value;

    QTime time( hour ,minutes ,second );

    QString str;

    HbExtendedLocale locale = HbExtendedLocale::system();

    if ( mLongTimeFormat )

    {

        str = locale.format( time, r_qtn_time_durat_long );

    }

    else

    {

        str = locale.format( time, r_qtn_time_durat_min_sec );

    }

    return str;

}

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

// QMPXVideoPlaybackProgressBar::handleSliderPressed

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

//

void QMPXVideoPlaybackProgressBar::handleSliderPressed() 

{

    MPX_ENTER_EXIT(_L("QMPXVideoPlaybackProgressBar::handleSliderPressed()"));

    mSliderDragging = true;

    mController->resetDisappearingTimers( EMPXTimerCancel );

    //

    // Pause the playback if it's playing

    //

    if( mController->state() == EPbStatePlaying )

    {

        mNeedToResumeAfterSetPosition = true;

        mController->handleCommand( EMPXPbvCmdCustomPause );   

    }

}

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

// QMPXVideoPlaybackProgressBar::handleSliderMoved

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

//

void QMPXVideoPlaybackProgressBar::handleSliderMoved( int value ) 

{

    MPX_DEBUG(_L("QMPXVideoPlaybackProgressBar::handleSliderMoved() position = %d"), value);

    updatePostion( value );

    //

    // If the slider is dragging, start the timer and seek every KSeekingTimeOut msec

    //

    if ( mSliderDragging )

    {

        mDraggingPosition = value;

        MPX_DEBUG(_L("QMPXVideoPlaybackProgressBar::handleSliderMoved() mDraggingPosition = %d"), mDraggingPosition);

        if ( mSeekingTimer && ! mSeekingTimer->isActive() )

        {

            mSeekingTimer->start();

        }

    }

    else

    {

        if ( value >= mDuration )

        {

            MPX_DEBUG(_L("QMPXVideoPlaybackProgressBar::setPosition() reached end of the clip"));

            mController->handleCommand( EMPXPbvCmdEndOfClip );

        }

        else

        {

            value = mProgressSlider->sliderValue();

            MPX_DEBUG(_L("QMPXVideoPlaybackProgressBar::setPosition() position = %d"), value);

            mController->handleCommand( EMPXPbvCmdSetPosition, value );

        }

    }

}

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

// QMPXVideoPlaybackProgressBar::handleSliderReleased

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

//

void QMPXVideoPlaybackProgressBar::handleSliderReleased()

{

    MPX_ENTER_EXIT(_L("QMPXVideoPlaybackProgressBar::handleSliderReleased()"));

    mSliderDragging = false;

    if ( mSeekingTimer && mSeekingTimer->isActive() )

    {

        mSeekingTimer->stop();

    }

    mController->resetDisappearingTimers( EMPXTimerReset );

    int value = mProgressSlider->sliderValue();

    if ( value >= mDuration )

    {

        MPX_DEBUG(_L("QMPXVideoPlaybackProgressBar::setPosition() reached end of the clip"));

        mController->handleCommand( EMPXPbvCmdEndOfClip );

    }

    else

    {

        if ( value < 0 )

        {

            value = 0;

        }

        MPX_DEBUG(_L("QMPXVideoPlaybackProgressBar::setPosition() position = %d"), value);

        mController->handleCommand( EMPXPbvCmdSetPosition, value );

        //

        // Resume if it was playing

        //

        if( mNeedToResumeAfterSetPosition )

        {

            mNeedToResumeAfterSetPosition = false;

            mController->handleCommand( EMPXPbvCmdCustomPlay );

        }

    }

}

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

// QMPXVideoPlaybackProgressBar::updateWithFileDetails()

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

//

void QMPXVideoPlaybackProgressBar::updateWithFileDetails(

        QMPXVideoPlaybackViewFileDetails* details )

{

    MPX_DEBUG(_L("QMPXVideoPlaybackProgressBar::updateControlsWithFileDetails()"));

    if ( details->mPlaybackMode == EMPXVideoLiveStreaming )

    {

        mProgressSlider->setEnabled( false );

    }

    else if ( ! mProgressSlider->isEnabled() )

    {

        mProgressSlider->setEnabled( true );

    }

}

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

// QMPXVideoPlaybackProgressBar::updateState()

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

//

void QMPXVideoPlaybackProgressBar::updateState( TMPXPlaybackState state )

{

    MPX_DEBUG(_L("QMPXVideoPlaybackProgressBar::updateState() state = %d"), state );

    switch ( state )

    {

        case EPbStatePlaying:

        case EPbStatePaused:

        {

            if ( ! isEnabled() )

            {

                setEnabled( true );

            }

            break;

        }

        default:

        {

            if ( isEnabled() )

            {

                setEnabled( false );

            }

            break;

        }

    }

}

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

// QMPXVideoPlaybackProgressBar::handleSeekingTimeout()

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

//

void QMPXVideoPlaybackProgressBar::handleSeekingTimeout()

{

    if ( mDraggingPosition >= mDuration )

    {

        mDraggingPosition = mDuration;

    }

    else if( mDraggingPosition < 0 )

    {

        mDraggingPosition = 0;

    }

    MPX_DEBUG(_L("QMPXVideoPlaybackProgressBar::handleSeekingTimeout() Dragging pos = %d, Set pos = %d")

            , mDraggingPosition, mSetPosition );

    if ( mSetPosition != mDraggingPosition )

    {

        mSetPosition = mDraggingPosition;

        mController->handleCommand( EMPXPbvCmdSetPosition, mSetPosition );

    }

}

//End of file