/**************************************************************
 * 
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 * 
 *   http://www.apache.org/licenses/LICENSE-2.0
 * 
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
 * under the License.
 * 
 *************************************************************/


#include "mediawindow_impl.hxx"
#include "mediaevent_impl.hxx"
#include "mediamisc.hxx"
#include "mediawindow.hrc"
#include "helpids.hrc"

#include <algorithm>
#include <cmath>
#include <osl/mutex.hxx>
#include <tools/time.hxx>
#include <vcl/svapp.hxx>

#ifndef _COM_SUN_STAR_AWT_SYSTEMPOINTER_HDL_
#include <com/sun/star/awt/SystemPointer.hdl>
#endif
#ifndef _COM_SUN_STAR_LANG_XCOMPONENT_HDL_
#include <com/sun/star/lang/XComponent.hdl>
#endif

#define AVMEDIA_TOOLBOXITEM_PREV	0x0001
#define AVMEDIA_TOOLBOXITEM_PLAY 	0x0002
#define AVMEDIA_TOOLBOXITEM_PAUSE 	0x0004
#define AVMEDIA_TOOLBOXITEM_STOP 	0x0008
#define AVMEDIA_TOOLBOXITEM_NEXT 	0x0010
#define AVMEDIA_TOOLBOXITEM_MUTE	0x0100

#define AVMEDIA_FFW_PLAYRATE		4

using namespace ::com::sun::star;

namespace avmedia { namespace priv {

// ----------------------
// - MediaWindowControl -
// ----------------------

MediaWindowControl::MediaWindowControl( Window* pParent ) :
	MediaControl( pParent, MEDIACONTROLSTYLE_MULTILINE )
{
}

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

MediaWindowControl::~MediaWindowControl()
{
}

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

void MediaWindowControl::update()
{
	MediaItem aItem;

	static_cast< MediaWindowImpl* >( GetParent() )->updateMediaItem( aItem );
	setState( aItem );
}

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

void  MediaWindowControl::execute( const MediaItem& rItem )
{
	static_cast< MediaWindowImpl* >( GetParent() )->executeMediaItem( rItem );
}

// --------------------
// - MediaChildWindow -
// --------------------

MediaChildWindow::MediaChildWindow( Window* pParent ) :
	SystemChildWindow( pParent, WB_CLIPCHILDREN )
{
}

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

MediaChildWindow::~MediaChildWindow()
{
}

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

void MediaChildWindow::MouseMove( const MouseEvent& rMEvt )
{
	const MouseEvent aTransformedEvent( GetParent()->ScreenToOutputPixel( OutputToScreenPixel( rMEvt.GetPosPixel() ) ),
								  		rMEvt.GetClicks(), rMEvt.GetMode(), rMEvt.GetButtons(), rMEvt.GetModifier() );

	SystemChildWindow::MouseMove( rMEvt );
	GetParent()->MouseMove( aTransformedEvent );
}

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

void MediaChildWindow::MouseButtonDown( const MouseEvent& rMEvt )
{
	const MouseEvent aTransformedEvent( GetParent()->ScreenToOutputPixel( OutputToScreenPixel( rMEvt.GetPosPixel() ) ),
								  		rMEvt.GetClicks(), rMEvt.GetMode(), rMEvt.GetButtons(), rMEvt.GetModifier() );

	SystemChildWindow::MouseButtonDown( rMEvt );
	GetParent()->MouseButtonDown( aTransformedEvent );
}

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

void MediaChildWindow::MouseButtonUp( const MouseEvent& rMEvt )
{
	const MouseEvent aTransformedEvent( GetParent()->ScreenToOutputPixel( OutputToScreenPixel( rMEvt.GetPosPixel() ) ),
								  		rMEvt.GetClicks(), rMEvt.GetMode(), rMEvt.GetButtons(), rMEvt.GetModifier() );

	SystemChildWindow::MouseButtonUp( rMEvt );
	GetParent()->MouseButtonUp( aTransformedEvent );
}

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

void MediaChildWindow::KeyInput( const KeyEvent& rKEvt )
{
	SystemChildWindow::KeyInput( rKEvt );
	GetParent()->KeyInput( rKEvt );
}

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

void MediaChildWindow::KeyUp( const KeyEvent& rKEvt )
{
	SystemChildWindow::KeyUp( rKEvt );
	GetParent()->KeyUp( rKEvt );
}

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

void MediaChildWindow::Command( const CommandEvent& rCEvt )
{
	const CommandEvent aTransformedEvent( GetParent()->ScreenToOutputPixel( OutputToScreenPixel( rCEvt.GetMousePosPixel() ) ),
								  		  rCEvt.GetCommand(), rCEvt.IsMouseEvent(), rCEvt.GetData() );

	SystemChildWindow::Command( rCEvt );
	GetParent()->Command( aTransformedEvent );
}

// ----------------------
// - MediaWindowImpl -
// ----------------------

MediaWindowImpl::MediaWindowImpl( Window* pParent, MediaWindow* pMediaWindow, bool bInternalMediaControl ) :
    Control( pParent ),
    MediaWindowBaseImpl( pMediaWindow ),
    DropTargetHelper( this ),
    DragSourceHelper( this ),
    mxEventsIf( static_cast< ::cppu::OWeakObject* >( mpEvents = new MediaEventListenersImpl( maChildWindow ) ) ),
	maChildWindow( this ),
	mpMediaWindowControl( bInternalMediaControl ? new MediaWindowControl( this ) : NULL ),
	mpEmptyBmpEx( NULL ),
	mpAudioBmpEx( NULL )
{
    maChildWindow.SetBackground( Color( COL_BLACK ) );
	maChildWindow.SetHelpId( HID_AVMEDIA_PLAYERWINDOW );
	maChildWindow.Hide();

	if( mpMediaWindowControl )
	{
		mpMediaWindowControl->SetSizePixel( mpMediaWindowControl->getMinSizePixel() );
		mpMediaWindowControl->Show();
	}
}

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

MediaWindowImpl::~MediaWindowImpl()
{
	delete mpEmptyBmpEx;
	delete mpAudioBmpEx;
	delete mpMediaWindowControl;
}

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

void MediaWindowImpl::cleanUp()
{
    uno::Reference< media::XPlayerWindow > xPlayerWindow( getPlayerWindow() );

    mpEvents->cleanUp();

    if( xPlayerWindow.is() )
    {
        xPlayerWindow->removeKeyListener( uno::Reference< awt::XKeyListener >( mxEventsIf, uno::UNO_QUERY ) );
        xPlayerWindow->removeMouseListener( uno::Reference< awt::XMouseListener >( mxEventsIf, uno::UNO_QUERY ) );
        xPlayerWindow->removeMouseMotionListener( uno::Reference< awt::XMouseMotionListener >( mxEventsIf, uno::UNO_QUERY ) );

		uno::Reference< lang::XComponent > xComponent( xPlayerWindow, uno::UNO_QUERY );

		if( xComponent.is() )
			xComponent->dispose();

		setPlayerWindow( NULL );
    }

    MediaWindowBaseImpl::cleanUp();
}

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

void MediaWindowImpl::onURLChanged()
{
    if( getPlayer().is() )
    {
        uno::Reference< media::XPlayerWindow > xPlayerWindow;
    	
        const Point         aPoint;
		const Size          aSize( maChildWindow.GetSizePixel() );
        const sal_IntPtr    nWndHandle = (sal_IntPtr) maChildWindow.GetParentWindowHandle( isMediaWindowJavaBased() );

        try
        {
            if( nWndHandle != 0 )
            {
                uno::Sequence< uno::Any > aArgs( 3 );

                aArgs[ 0 ] = uno::makeAny( nWndHandle );
                aArgs[ 1 ] = uno::makeAny( awt::Rectangle( aPoint.X(), aPoint.Y(), aSize.Width(), aSize.Height() ) );
                aArgs[ 2 ] = uno::makeAny( reinterpret_cast< sal_IntPtr >( &maChildWindow ) );

                xPlayerWindow = getPlayer()->createPlayerWindow( aArgs );
            }
        }
        catch( uno::RuntimeException )
        {
            // happens eg, on MacOSX where Java frames cannot be created from X11 window handles
        }

        setPlayerWindow( xPlayerWindow );

        if( xPlayerWindow.is() )
        {
            xPlayerWindow->addKeyListener( uno::Reference< awt::XKeyListener >( mxEventsIf, uno::UNO_QUERY ) );
            xPlayerWindow->addMouseListener( uno::Reference< awt::XMouseListener >( mxEventsIf, uno::UNO_QUERY ) );
            xPlayerWindow->addMouseMotionListener( uno::Reference< awt::XMouseMotionListener >( mxEventsIf, uno::UNO_QUERY ) );
            xPlayerWindow->addFocusListener( uno::Reference< awt::XFocusListener >( mxEventsIf, uno::UNO_QUERY ) );
        }
	}
	else
        setPlayerWindow( NULL );

	if( getPlayerWindow().is() )
		maChildWindow.Show();
	else
		maChildWindow.Hide();

	if( mpMediaWindowControl )
	{
		MediaItem aItem;

		updateMediaItem( aItem );
		mpMediaWindowControl->setState( aItem );
	}
}

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

void MediaWindowImpl::update()
{
    uno::Reference< media::XPlayerWindow > xPlayerWindow( getPlayerWindow() );

	if( xPlayerWindow.is() )
        xPlayerWindow->update();
}

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

void MediaWindowImpl::setPosSize( const Rectangle& rRect )
{
    SetPosSizePixel( rRect.TopLeft(), rRect.GetSize() );
}

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

void MediaWindowImpl::setPointer( const Pointer& rPointer )
{
    uno::Reference< media::XPlayerWindow >	xPlayerWindow( getPlayerWindow() );

	SetPointer( rPointer );
	maChildWindow.SetPointer( rPointer );

	if( xPlayerWindow.is() )
	{
    	long nPointer;

		switch( rPointer.GetStyle() )
		{
			case( POINTER_CROSS ): nPointer = awt::SystemPointer::CROSS; break;
			case( POINTER_HAND ): nPointer = awt::SystemPointer::HAND; break;
			case( POINTER_MOVE ): nPointer = awt::SystemPointer::MOVE; break;
			case( POINTER_WAIT ): nPointer = awt::SystemPointer::WAIT; break;

			default: nPointer = awt::SystemPointer::ARROW; break;
		}

		xPlayerWindow->setPointerType( nPointer );
	}
}

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

const Pointer& MediaWindowImpl::getPointer() const
{
	return GetPointer();
}

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

bool MediaWindowImpl::hasInternalMediaControl() const
{
	return( mpMediaWindowControl != NULL );
}

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

void MediaWindowImpl::Resize()
{
    uno::Reference< media::XPlayerWindow >	xPlayerWindow( getPlayerWindow() );
    const Size								aCurSize( GetOutputSizePixel() );
	const sal_Int32							nOffset( mpMediaWindowControl ? AVMEDIA_CONTROLOFFSET : 0 );
	Size 									aPlayerWindowSize( aCurSize.Width() - ( nOffset << 1 ),
															   aCurSize.Height() - ( nOffset << 1 ) );

	if( mpMediaWindowControl )
	{
		const sal_Int32	nControlHeight = mpMediaWindowControl->GetSizePixel().Height();
		const sal_Int32	nControlY = ::std::max( aCurSize.Height() - nControlHeight - nOffset, 0L );

		aPlayerWindowSize.Height() = ( nControlY - ( nOffset << 1 ) );
		mpMediaWindowControl->SetPosSizePixel( Point( nOffset, nControlY ), Size( aCurSize.Width() - ( nOffset << 1 ), nControlHeight ) );
	}

	if( xPlayerWindow.is() )
		xPlayerWindow->setPosSize( 0, 0, aPlayerWindowSize.Width(), aPlayerWindowSize.Height(), 0 );

	maChildWindow.SetPosSizePixel( Point( nOffset, nOffset ), aPlayerWindowSize );
}

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

void MediaWindowImpl::StateChanged( StateChangedType eType )
{
    uno::Reference< media::XPlayerWindow > xPlayerWindow( getPlayerWindow() );

    if( xPlayerWindow.is() )
    {
        // stop playing when going disabled or hidden
        switch( eType )
        {
            case STATE_CHANGE_VISIBLE:
            {
                stopPlayingInternal( !IsVisible() );
                xPlayerWindow->setVisible( IsVisible() );
            }
            break;

            case STATE_CHANGE_ENABLE:
            {
                stopPlayingInternal( !IsEnabled() );
                xPlayerWindow->setEnable( IsEnabled() );
            }
            break;

            default:
            break;
        }
    }
}

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

void MediaWindowImpl::Paint( const Rectangle& )
{
	BitmapEx* pLogo = NULL;

	if( !getPlayer().is() )
	{
		if( !mpEmptyBmpEx )
			mpEmptyBmpEx = new BitmapEx( AVMEDIA_RESID( AVMEDIA_BMP_EMPTYLOGO ) );

		pLogo = mpEmptyBmpEx;
	}
	else if( !getPlayerWindow().is() )
	{
		if( !mpAudioBmpEx )
			mpAudioBmpEx = new BitmapEx( AVMEDIA_RESID( AVMEDIA_BMP_AUDIOLOGO ) );

		pLogo = mpAudioBmpEx;
	}

	const Point     aBasePos( maChildWindow.GetPosPixel() );
	const Rectangle aVideoRect( aBasePos, maChildWindow.GetSizePixel() );

	if( pLogo && !pLogo->IsEmpty() && ( aVideoRect.GetWidth() > 0 ) && ( aVideoRect.GetHeight() > 0 ) )
	{
		Size	    aLogoSize( pLogo->GetSizePixel() );
		const Color	aBackgroundColor( 67, 67, 67 );

		SetLineColor( aBackgroundColor );
		SetFillColor( aBackgroundColor );
		DrawRect( aVideoRect );

		if( ( aLogoSize.Width() > aVideoRect.GetWidth() || aLogoSize.Height() > aVideoRect.GetHeight() ) &&
		    ( aLogoSize.Height() > 0 ) )
		{
		    const double fLogoWH = (double) aLogoSize.Width() / aLogoSize.Height();

		    if( fLogoWH < ( (double) aVideoRect.GetWidth() / aVideoRect.GetHeight() ) )
		    {
			    aLogoSize.Width() = (long) ( aVideoRect.GetHeight() * fLogoWH );
			    aLogoSize.Height()= aVideoRect.GetHeight();
		    }
		    else
		    {
			    aLogoSize.Width() = aVideoRect.GetWidth();
			    aLogoSize.Height()= (long) ( aVideoRect.GetWidth() / fLogoWH );
		    }
		}

		DrawBitmapEx( Point( aBasePos.X() + ( ( aVideoRect.GetWidth() - aLogoSize.Width() ) >> 1 ),
							 aBasePos.Y() + ( ( aVideoRect.GetHeight() - aLogoSize.Height() ) >> 1 ) ),
					  aLogoSize, *pLogo );
	}
}

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

void MediaWindowImpl::GetFocus()
{
}

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

void MediaWindowImpl::MouseMove( const MouseEvent& rMEvt )
{
    MediaWindow* pMediaWindow = getMediaWindow();

    if( pMediaWindow )
        pMediaWindow->MouseMove( rMEvt );
}

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

void MediaWindowImpl::MouseButtonDown( const MouseEvent& rMEvt )
{
    MediaWindow* pMediaWindow = getMediaWindow();

    if( pMediaWindow )
        pMediaWindow->MouseButtonDown( rMEvt );
}

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

void MediaWindowImpl::MouseButtonUp( const MouseEvent& rMEvt )
{
    MediaWindow* pMediaWindow = getMediaWindow();

    if( pMediaWindow )
        pMediaWindow->MouseButtonUp( rMEvt );
}

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

void MediaWindowImpl::KeyInput( const KeyEvent& rKEvt )
{
    MediaWindow* pMediaWindow = getMediaWindow();

    if( pMediaWindow )
        pMediaWindow->KeyInput( rKEvt );
}

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

void MediaWindowImpl::KeyUp( const KeyEvent& rKEvt )
{
    MediaWindow* pMediaWindow = getMediaWindow();

    if( pMediaWindow )
        pMediaWindow->KeyUp( rKEvt );
}

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

void MediaWindowImpl::Command( const CommandEvent& rCEvt )
{
    MediaWindow* pMediaWindow = getMediaWindow();

    if( pMediaWindow )
        pMediaWindow->Command( rCEvt );
}

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

sal_Int8 MediaWindowImpl::AcceptDrop( const AcceptDropEvent& rEvt )
{
	MediaWindow* pMediaWindow = getMediaWindow();
	return( pMediaWindow ? pMediaWindow->AcceptDrop( rEvt ) : 0 );
}

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

sal_Int8 MediaWindowImpl::ExecuteDrop( const ExecuteDropEvent& rEvt )
{
    MediaWindow* pMediaWindow = getMediaWindow();
    return( pMediaWindow ? pMediaWindow->ExecuteDrop( rEvt ) : 0 );
}

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

void MediaWindowImpl::StartDrag( sal_Int8 nAction, const Point& rPosPixel )
{
    MediaWindow* pMediaWindow = getMediaWindow();

    if( pMediaWindow )
        pMediaWindow->StartDrag( nAction, rPosPixel );
}

} // namespace priv
} // namespace avmedia