slideshow/source/engine/soundplayer.cxx

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  30
  31 // MARKER(update_precomp.py): autogen include statement, do not remove
  32 #include "precompiled_slideshow.hxx"
  33
  34 #include <canvas/debug.hxx>
  35 #include <tools/diagnose_ex.h>
  36 #include <canvas/verbosetrace.hxx>
  37
  38 #include <comphelper/anytostring.hxx>
  39 #include <cppuhelper/exc_hlp.hxx>
  40
  41 #include <com/sun/star/lang/XMultiComponentFactory.hpp>
  42 #include <com/sun/star/lang/NoSupportException.hpp>
  43 #include <com/sun/star/lang/XComponent.hdl>
  44
  45 #include <tools/urlobj.hxx>
  46
  47 #include <avmedia/mediawindow.hxx>
  48
  49 #include "soundplayer.hxx"
  50
  51 #include <algorithm>
  52
  53 using namespace ::com::sun::star;
  54
  55
  56 namespace slideshow
  57 {
  58     namespace internal
  59     {
  60         // TODO(Q3): Move the whole SoundPlayer class to avmedia.
  61
  62         boost::shared_ptr<SoundPlayer> SoundPlayer::create(
  63             EventMultiplexer & rEventMultiplexer,
  64             const ::rtl::OUString& rSoundURL,
  65             const uno::Reference< uno::XComponentContext>&      rComponentContext )
  66         {
  67             boost::shared_ptr<SoundPlayer> pPlayer(
  68                 new SoundPlayer( rEventMultiplexer,
  69                                  rSoundURL,
  70                                  rComponentContext ) );
  71             rEventMultiplexer.addPauseHandler( pPlayer );
  72             pPlayer->mThis = pPlayer;
  73             return pPlayer;
  74         }
  75
  76         bool SoundPlayer::handlePause( bool bPauseShow )
  77         {
  78             return bPauseShow ? stopPlayback() : startPlayback();
  79         }
  80
  81         void SoundPlayer::dispose()
  82         {
  83             if( mThis )
  84             {
  85                 mrEventMultiplexer.removePauseHandler( mThis );
  86                 mThis.reset();
  87             }
  88
  89             if( mxPlayer.is() )
  90             {
  91                 mxPlayer->stop();
  92                 uno::Reference<lang::XComponent> xComponent(
  93                     mxPlayer, uno::UNO_QUERY );
  94                 if( xComponent.is() )
  95                     xComponent->dispose();
  96                 mxPlayer.clear();
  97             }
  98         }
  99
 100         SoundPlayer::SoundPlayer(
 101             EventMultiplexer & rEventMultiplexer,
 102             const ::rtl::OUString& rSoundURL,
 103             const uno::Reference< uno::XComponentContext>&      rComponentContext )
 104             : mrEventMultiplexer(rEventMultiplexer),
 105               mThis(),
 106               mxPlayer()
 107         {
 108             ENSURE_OR_THROW( rComponentContext.is(),
 109                               "SoundPlayer::SoundPlayer(): Invalid component context" );
 110
 111             try
 112             {
 113                 const INetURLObject aURL( rSoundURL );
 114                 mxPlayer.set( avmedia::MediaWindow::createPlayer(
 115                                 aURL.GetMainURL( INetURLObject::DECODE_UNAMBIGUOUS ) ),
 116                                 uno::UNO_QUERY);
 117             }
 118             catch( uno::RuntimeException& )
 119             {
 120                 throw;
 121             }
 122             catch( uno::Exception& )
 123             {
 124             }
 125
 126             if( !mxPlayer.is() )
 127                 throw lang::NoSupportException(
 128                     rtl::OUString( RTL_CONSTASCII_USTRINGPARAM(
 129                                        "No sound support for ") ) + rSoundURL,
 130                     uno::Reference<uno::XInterface>() );
 131         }
 132
 133         SoundPlayer::~SoundPlayer()
 134         {
 135             try
 136             {
 137                 dispose();
 138             }
 139             catch (uno::Exception &) {
 140                 OSL_ENSURE( false, rtl::OUStringToOString(
 141                                 comphelper::anyToString(
 142                                     cppu::getCaughtException() ),
 143                                 RTL_TEXTENCODING_UTF8 ).getStr() );
 144             }
 145         }
 146
 147         double SoundPlayer::getDuration() const
 148         {
 149             if( !mxPlayer.is() )
 150                 return 0.0;
 151
 152             const double nDuration( mxPlayer->getDuration() );
 153             if( mxPlayer->isPlaying() )
 154                 return ::std::max( 0.0,
 155                                    nDuration - mxPlayer->getMediaTime() );
 156             else
 157                 return nDuration;
 158         }
 159
 160         bool SoundPlayer::startPlayback()
 161         {
 162             if( !mxPlayer.is() )
 163                 return false;
 164
 165             if( mxPlayer->isPlaying() )
 166                 mxPlayer->stop();
 167
 168             mxPlayer->start();
 169             return true;
 170         }
 171
 172         bool SoundPlayer::stopPlayback()
 173         {
 174             if( mxPlayer.is() )
 175                 mxPlayer->stop();
 176
 177             return true;
 178         }
 179
 180         void SoundPlayer::setPlaybackLoop( bool bLoop )
 181         {
 182             if( mxPlayer.is() )
 183                 mxPlayer->setPlaybackLoop( bLoop );
 184         }
 185     }
 186 }