slideshow/source/engine/soundplayer.cxx

   1 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
   2 /*
   3  * This file is part of the LibreOffice project.
   4  *
   5  * This Source Code Form is subject to the terms of the Mozilla Public
   6  * License, v. 2.0. If a copy of the MPL was not distributed with this
   7  * file, You can obtain one at http://mozilla.org/MPL/2.0/.
   8  *
   9  * This file incorporates work covered by the following license notice:
  10  *
  11  *   Licensed to the Apache Software Foundation (ASF) under one or more
  12  *   contributor license agreements. See the NOTICE file distributed
  13  *   with this work for additional information regarding copyright
  14  *   ownership. The ASF licenses this file to you under the Apache
  15  *   License, Version 2.0 (the "License"); you may not use this file
  16  *   except in compliance with the License. You may obtain a copy of
  17  *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
  18  */
  19
  20
  21 #include <config_features.h>
  22 #include <comphelper/diagnose_ex.hxx>
  23
  24 #include <com/sun/star/lang/NoSupportException.hpp>
  25 #include <com/sun/star/lang/XComponent.hpp>
  26
  27 #include <tools/urlobj.hxx>
  28
  29 #include <avmedia/mediawindow.hxx>
  30 #include <mediafilemanager.hxx>
  31 #include <soundplayer.hxx>
  32
  33 #include <algorithm>
  34
  35 using namespace ::com::sun::star;
  36
  37
  38 namespace slideshow::internal
  39 {
  40         // TODO(Q3): Move the whole SoundPlayer class to avmedia.
  41
  42         std::shared_ptr<SoundPlayer> SoundPlayer::create(
  43             EventMultiplexer & rEventMultiplexer,
  44             const OUString& rSoundURL,
  45             const uno::Reference< uno::XComponentContext>&  rComponentContext,
  46             MediaFileManager& rMediaFileManager)
  47         {
  48             std::shared_ptr<SoundPlayer> pPlayer(
  49                 new SoundPlayer( rEventMultiplexer,
  50                                  rSoundURL,
  51                                  rComponentContext,
  52                                  rMediaFileManager) );
  53             rEventMultiplexer.addPauseHandler( pPlayer );
  54             pPlayer->mThis = pPlayer;
  55             return pPlayer;
  56         }
  57
  58         bool SoundPlayer::handlePause( bool bPauseShow )
  59         {
  60             return bPauseShow ? stopPlayback() : startPlayback();
  61         }
  62
  63         void SoundPlayer::dispose()
  64         {
  65             if( mThis )
  66             {
  67                 mrEventMultiplexer.removePauseHandler( mThis );
  68                 mThis.reset();
  69             }
  70
  71             if( mxPlayer.is() )
  72             {
  73                 mxPlayer->stop();
  74                 uno::Reference<lang::XComponent> xComponent(
  75                     mxPlayer, uno::UNO_QUERY );
  76                 if( xComponent.is() )
  77                     xComponent->dispose();
  78                 mxPlayer.clear();
  79             }
  80         }
  81
  82         SoundPlayer::SoundPlayer(
  83             EventMultiplexer & rEventMultiplexer,
  84             const OUString& rSoundURL,
  85             const uno::Reference< uno::XComponentContext>&  rComponentContext,
  86             MediaFileManager& rMediaFileManager)
  87             : mrEventMultiplexer(rEventMultiplexer),
  88               mThis(),
  89               mxPlayer()
  90         {
  91             ENSURE_OR_THROW( rComponentContext.is(),
  92                               "SoundPlayer::SoundPlayer(): Invalid component context" );
  93
  94 #if !HAVE_FEATURE_AVMEDIA
  95             (void) rMediaFileManager;
  96 #else
  97             try
  98             {
  99                 if (rSoundURL.startsWithIgnoreAsciiCase("vnd.sun.star.Package:"))
 100                 {
 101                     mpMediaTempFile = rMediaFileManager.getMediaTempFile(rSoundURL);
 102                 }
 103                 const INetURLObject aURL( mpMediaTempFile ? mpMediaTempFile->m_TempFileURL : rSoundURL );
 104                 mxPlayer = avmedia::MediaWindow::createPlayer(
 105                                 aURL.GetMainURL( INetURLObject::DecodeMechanism::Unambiguous ), ""/*TODO!*/ );
 106             }
 107             catch( uno::RuntimeException& )
 108             {
 109                 throw;
 110             }
 111             catch( uno::Exception& )
 112             {
 113             }
 114 #endif
 115
 116             if( !mxPlayer.is() )
 117                 throw lang::NoSupportException(
 118                     "No sound support for " + rSoundURL );
 119         }
 120
 121         SoundPlayer::~SoundPlayer()
 122         {
 123             try
 124             {
 125                 dispose();
 126             }
 127             catch (uno::Exception &) {
 128                 TOOLS_WARN_EXCEPTION( "slideshow", "" );
 129             }
 130         }
 131
 132         double SoundPlayer::getDuration() const
 133         {
 134             if( !mxPlayer.is() )
 135                 return 0.0;
 136
 137             const double nDuration( mxPlayer->getDuration() );
 138             if( mxPlayer->isPlaying() )
 139                 return ::std::max( 0.0,
 140                                    nDuration - mxPlayer->getMediaTime() );
 141             else
 142                 return nDuration;
 143         }
 144
 145         bool SoundPlayer::startPlayback()
 146         {
 147             if( !mxPlayer.is() )
 148                 return false;
 149
 150             if( mxPlayer->isPlaying() )
 151                 mxPlayer->stop();
 152
 153             mxPlayer->start();
 154             return true;
 155         }
 156
 157         bool SoundPlayer::stopPlayback()
 158         {
 159             if( mxPlayer.is() )
 160                 mxPlayer->stop();
 161
 162             return true;
 163         }
 164
 165         void SoundPlayer::setPlaybackLoop( bool bLoop )
 166         {
 167             if( mxPlayer.is() )
 168                 mxPlayer->setPlaybackLoop( bLoop );
 169         }
 170
 171         bool SoundPlayer::isPlaying() const
 172         {
 173             return mxPlayer->isPlaying();
 174         }
 175 }
 176
 177 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */