0.6.x/js/07_audio/10_XAudioSprite.js

   1 \r
   2 /*\r
   3  * http://uupaa.hatenablog.com/entry/2011/12/12/213233\r
   4  * Mobile Opera11 は Audio をサポートするがイベントが取れない\r
   5  * iframe 内で生成して、Audio Sprite の preset で再生できないか？\r
   6  */\r
   7 var X_Audio_Sprite_shouldUse        = window.HTMLAudioElement && ( X_UA[ 'iOS' ] || X_UA[ 'AndroidBrowser' ] || X_UA[ 'OperaMobile' ] || X_UA[ 'OperaTablet' ] ), // Flash がない\r
   8         X_Audio_Sprite_useVideoForMulti = 4 <= X_UA[ 'AndroidBrowser' ] && 534.3 < X_UA[ 'AndroidWebkit' ], // ドスパラパッドはビデオのインライン再生が不可 \r
   9         X_Audio_Sprite_needTouchAndroid = X_Audio_Sprite_useVideoForMulti,      \r
  10         X_Audio_Sprite_needTouchFirst   = X_UA[ 'iOS' ] || X_Audio_Sprite_needTouchAndroid || ( X_UA[ 'WinPhone' ] && X_UA[ 'IE9' ] ),\r
  11         X_Audio_Sprite_enableMultiTrack = !( X_UA[ 'iOS' ] && !X_Audio_WebAudio_context ) && !( X_UA[ 'AndroidBrowser4' ] && X_UA[ 'AndroidWebkit' ] <= 534.3 ) && !( X_UA[ 'WinPhone' ] && X_UA[ 'IE9' ] ),\r
  12         X_Audio_Sprite_enableVolume     = window.HTMLAudioElement && ( !X_UA[ 'iOS' ] && !X_UA[ 'AndroidBrowser' ] && !X_UA[ 'OperaMobile' ] && !X_UA[ 'OperaTablet' ] ), // TODO fennec は　25以上\r
  13         X_Audio_Sprite_maxTracks        = !X_Audio_Sprite_enableMultiTrack ? 1 : X_Audio_Sprite_useVideoForMulti ? 2 : 9,\r
  14         X_Audio_Sprite_lengthSilence    = 10000, // 一番最初の無音部分の長さ\r
  15         X_Audio_Sprite_lengthDistance   = 5000,  // 音間の無音の長さ\r
  16         X_Audio_Sprite_uid              = 0,\r
  17         X_Audio_Sprite_members          = {},\r
  18         X_Audio_Sprite_TEMP             = {\r
  19                 presets     : {},\r
  20                 BGMs        : {},\r
  21                 tracks      : [],\r
  22                 pauseTracks : [], // X_EVENT_DEACTIVATE によって pause した再生中のトラックたち。\r
  23                 volume      : 1,\r
  24                 bgmTrack    : null,\r
  25                 bgmPosition : 0,\r
  26                 bgmName     : '',\r
  27                 bgmLooped   : false,\r
  28                 bgmPlaying  : false\r
  29         },\r
  30         X_Audio_Sprite_instance,\r
  31         X_Audio_Sprite_numTracks,\r
  32         X_Audio_Sprite_useVideo;\r
  33 \r
  34 X[ 'AudioSprite' ] = function( setting ){\r
  35         var tracks  = X_Audio_Sprite_TEMP.tracks,\r
  36                 bgms    = X_Audio_Sprite_TEMP.BGMs,\r
  37                 presets = X_Audio_Sprite_TEMP.presets,\r
  38                 urls    = setting[ 'urls' ],\r
  39                 video   = setting[ 'useVideo' ],\r
  40                 n       = video ? 1 : setting[ 'numTracks' ] || 1,\r
  41                 option  = {\r
  42                         volume    : setting[ 'volume' ] || 0.5,\r
  43                         autoplay  : false,\r
  44                         startTime : 0,\r
  45                         endTime   : X_Audio_Sprite_lengthSilence,\r
  46                         loop      : true\r
  47                 },\r
  48                 k, i, v, track; \r
  49         \r
  50         if( !X_Audio_Sprite_instance ){\r
  51                 X_Audio_Sprite_instance = X_Class_override( X_EventDispatcher(), X_Audio_Sprite_members );\r
  52                 X_ViewPort[ 'listen' ]( [ X_EVENT_VIEW_ACTIVATE, X_EVENT_VIEW_DEACTIVATE ], X_Audio_Sprite_instance, X_Audio_Sprite_handleEvent );\r
  53         };\r
  54         \r
  55         n = n <= X_Audio_Sprite_maxTracks ? n : X_Audio_Sprite_maxTracks;\r
  56         \r
  57         for( k in setting ){\r
  58                 v = setting[ k ];\r
  59                 if( X_Type_isArray( v ) && v !== urls ){\r
  60                         v = X_Array_copy( v );\r
  61                         for( i = v.length; i; ){\r
  62                                 --i;\r
  63                                 if( i !== 2 ) v[ i ] = X_AudioWrapper_timeStringToNumber( v[ i ] );\r
  64                         };                                      \r
  65                         if( v[ 2 ] ) bgms[ k ] = v;\r
  66                         presets[ k ] = v;\r
  67                 };\r
  68         };\r
  69         \r
  70         X_Audio_startDetectionBackend( X_Audio_BACKENDS[ 0 ], X_Audio_Sprite_instance, X_Array_copy( urls ), option );\r
  71 \r
  72         X_Audio_Sprite_instance[ 'listenOnce' ]( [ X_EVENT_BACKEND_READY, X_EVENT_BACKEND_NONE ], X_AudioSprite_backendHandler );\r
  73         X_Audio_Sprite_instance[ 'listenOnce' ]( X_EVENT_KILL_INSTANCE, X_Audio_Sprite_handleEvent );\r
  74         \r
  75         X_Audio_Sprite_useVideo  = video;\r
  76         X_Audio_Sprite_numTracks = X_Audio_Sprite_instance[ 'numTracks' ] = n;\r
  77 \r
  78         return X_Audio_Sprite_instance;\r
  79 };\r
  80 \r
  81 X[ 'AudioSprite' ][ 'shouldUse'        ] = X_Audio_Sprite_shouldUse;\r
  82 X[ 'AudioSprite' ][ 'needTouchFirst'   ] = X_Audio_Sprite_needTouchFirst;\r
  83 X[ 'AudioSprite' ][ 'enableMultiTrack' ] = X_Audio_Sprite_enableMultiTrack;\r
  84 \r
  85 // 再生が終わっているもの、終わりかけのものを探す\r
  86 // TODO 終わりかけのもの、と一番古いもの、どちらを再利用するか？これ以上に細かい実装を望む場合は X.Audio.Sprite は使わず自力で実装\r
  87 function X_Audio_Sprite_getTrackEnded(){\r
  88         var tracks  = X_Audio_Sprite_TEMP.tracks,\r
  89                 l = tracks.length,\r
  90                 i = 0, track, state, last = 1 / 0, _last, index;\r
  91         \r
  92         for( ; i < l; ++i ){\r
  93                 track = tracks[ i ];\r
  94                 state = track.getState();\r
  95                 if( !state.playing ) return track;\r
  96                 if( track === X_Audio_Sprite_TEMP.bgmTrack ) continue;\r
  97                 if( state.currentTime <= X_Audio_Sprite_lengthSilence + X_Audio_Sprite_lengthDistance ) return track;\r
  98                 _last = state.endTime - state.currentTime;\r
  99                 if( _last < last ){\r
 100                         last  = _last;\r
 101                         index = i;\r
 102                 };\r
 103         };\r
 104         return tracks[ index ];\r
 105 };\r
 106 \r
 107 /*\r
 108  * {\r
 109  *       urls      : [ 'xx.ogg', 'xx.mp3' ],\r
 110  *       numTracks : 3,\r
 111  *   useVideo  : false,\r
 112  *   volume    : 1,\r
 113  *       BGM_01 : [ '15.00', '45.500', true, '17.666', '50.999' ],\r
 114  *   BGM_02 : [ '56.00', '1:15.230', true ]\r
 115  * }\r
 116  * \r
 117  * X_EVENT_BACKEND_READY\r
 118  * X_EVENT_BACKEND_NONE\r
 119  * \r
 120  * X_EVENT_READY\r
 121  * X_EVENT_MEDIA_LOOPED\r
 122  * X_EVENT_MEDIA_ENDED\r
 123  * \r
 124  */\r
 125 \r
 126 X_Audio_Sprite_members = {\r
 127                 \r
 128                 'numTracks' : 0,\r
 129                 \r
 130                 'load' : function(){\r
 131                         var tracks = X_Audio_Sprite_TEMP.tracks,\r
 132                                 i = 0, l = tracks.length;\r
 133                         for( ; i < l; ++i ){\r
 134                                 if( X_UA[ 'WinPhone' ] ){\r
 135                                         console.log( 'WinPhone : touch -> play()' );\r
 136                                         //tracks[ i ].play( 0, X_Audio_Sprite_lengthSilence, true, 0, X_Audio_Sprite_lengthSilence ).seek( 0 );\r
 137                                         this[ 'pause' ]( i );\r
 138                                 } else {\r
 139                                         tracks[ i ][ '_rawObject' ].load();\r
 140                                 };\r
 141                         };\r
 142                 },\r
 143                 \r
 144                 /*\r
 145                  * @return uid Number\r
 146                  */\r
 147                 'play' : function( name ){\r
 148                         var bgm     = X_Audio_Sprite_TEMP.bgmTrack,\r
 149                                 tracks  = X_Audio_Sprite_TEMP.tracks,\r
 150                                 bgms    = X_Audio_Sprite_TEMP.BGMs,\r
 151                                 presets = X_Audio_Sprite_TEMP.presets,\r
 152                                 preset  = presets[ name ],\r
 153                                 track, i, k;\r
 154                         \r
 155                         if( preset ){\r
 156                                 if( bgms[ name ] ){\r
 157                                         if( name !== X_Audio_Sprite_TEMP.bgmName ){\r
 158                                                 // bgm変更\r
 159                                                 X_Audio_Sprite_TEMP.bgmName     = name;\r
 160                                                 X_Audio_Sprite_TEMP.bgmPosition = preset[ 0 ];\r
 161                                                 X_Audio_Sprite_TEMP.bgmLooped   = false;\r
 162                                         };\r
 163                                         \r
 164                                         X_Audio_Sprite_TEMP.bgmPlaying = true;\r
 165                                         \r
 166                                         if( bgm ){\r
 167                                                 track = bgm;\r
 168                                         } else\r
 169                                         if( 1 < tracks.length ){\r
 170                                                 track = X_Audio_Sprite_TEMP.bgmTrack = X_Audio_Sprite_getTrackEnded();\r
 171                                         } else {\r
 172                                                 track = X_Audio_Sprite_TEMP.bgmTrack = tracks[ 0 ];\r
 173                                         };\r
 174                                         \r
 175                                         if( track[ 'listen' ]( [ X_EVENT_MEDIA_PLAYING, X_EVENT_MEDIA_BEFORE_LOOP ], this, X_Audio_Sprite_handleEvent ).playing ){\r
 176                                                 track.setState({\r
 177                                                                 'loop'          : true,\r
 178                                                                 'looped'        : X_Audio_Sprite_TEMP.bgmLooped,\r
 179                                                                 'currentTime'   : X_Audio_Sprite_TEMP.bgmPosition,\r
 180                                                                 'startTime'     : preset[ 0 ],\r
 181                                                                 'endTime'       : preset[ 1 ],\r
 182                                                                 'loopStartTime' : preset[ 3 ],\r
 183                                                                 'loopEndTime'   : preset[ 4 ]\r
 184                                                         });\r
 185                                         } else {\r
 186                                                 track.setState( { 'looped' : X_Audio_Sprite_TEMP.bgmLooped } );\r
 187                                                 track.play( preset[ 0 ], preset[ 1 ], true, preset[ 3 ], preset[ 4 ] );\r
 188                                                 track.seek( X_Audio_Sprite_TEMP.bgmPosition );\r
 189                                         };\r
 190                                         \r
 191                                 } else {\r
 192                                         if( 1 < tracks.length ){\r
 193                                                 track = X_Audio_Sprite_getTrackEnded( X_Audio_Sprite_TEMP.bgmPlaying );\r
 194                                                 track\r
 195                                                         [ 'listen' ]( [ X_EVENT_MEDIA_PLAYING, X_EVENT_MEDIA_BEFORE_LOOP ], this, X_Audio_Sprite_handleEvent )\r
 196                                                         .setState( { 'looped' : false } );\r
 197                                                 track.play( preset[ 0 ], preset[ 1 ], true, 0, X_Audio_Sprite_lengthSilence );\r
 198                                         } else {\r
 199                                                 // single track, iOS\r
 200                                                 if( bgm ){\r
 201                                                         X_Audio_Sprite_TEMP.bgmPosition = bgm.currentTime();\r
 202                                                         //console.log( 'bgm position : ' + X_Audio_Sprite_TEMP.bgmPosition + ' isPlay:' +  bgm.playing );\r
 203                                                         X_Audio_Sprite_TEMP.bgmTrack    = null;\r
 204                                                 };\r
 205                                                 track = tracks[ 0 ];\r
 206                                         \r
 207                                                 if( track[ 'listen' ]( [ X_EVENT_MEDIA_PLAYING, X_EVENT_MEDIA_BEFORE_LOOP ], this, X_Audio_Sprite_handleEvent ).playing ){\r
 208                                                         track.setState({\r
 209                                                                         'loop'          : true,\r
 210                                                                         'looped'        : false,\r
 211                                                                         //'currentTime'   : preset[ 0 ],\r
 212                                                                         'startTime'     : preset[ 0 ],\r
 213                                                                         'endTime'       : preset[ 1 ],\r
 214                                                                         'loopStartTime' : 0,\r
 215                                                                         'loopEndTime'   : X_Audio_Sprite_lengthSilence\r
 216                                                                 });\r
 217                                                 } else {\r
 218                                                         track.play( preset[ 0 ], preset[ 1 ], true, 0, X_Audio_Sprite_lengthSilence );  \r
 219                                                 };\r
 220                                         };\r
 221                                 };\r
 222                                 return tracks.indexOf( track );\r
 223                         };\r
 224                         return -1;\r
 225                 },\r
 226                 \r
 227                 'pause' : function( uid ){\r
 228                         var track = X_Audio_Sprite_TEMP.tracks[ uid ];\r
 229                         if( X_Audio_Sprite_TEMP.bgmTrack === track ){\r
 230                                 X_Audio_Sprite_TEMP.bgmPosition = track.currentTime();\r
 231                                 X_Audio_Sprite_TEMP.bgmPlaying  = false;\r
 232                                 X_Audio_Sprite_TEMP.bgmTrack    = null;\r
 233                         };\r
 234                         track && track.play( 0, X_Audio_Sprite_lengthSilence, true, 0, X_Audio_Sprite_lengthSilence );\r
 235                         track && track.seek( 0 );\r
 236                         this[ 'asyncDispatch' ]( X_EVENT_MEDIA_PAUSED );\r
 237                         return this;\r
 238                 },\r
 239                 \r
 240                 'seek' : function( uid, position ){\r
 241                         var track = X_Audio_Sprite_TEMP.tracks[ uid ],\r
 242                                 end;\r
 243                         if( track ){\r
 244                                 delete track.seekTime;\r
 245                                 end = X_AudioWrapper_getEndTime( track );\r
 246                                 position <= end && X_AudioWrapper_getStartTime( track, end ) <= position && track.seek( postion );\r
 247                         };\r
 248                         return this;\r
 249                 },\r
 250                 \r
 251                 'volume' : function( uid, opt_volume ){\r
 252                         var track, i;\r
 253                         // TODO uid = 0\r
 254                         if( uid === 0 ){\r
 255                                 if( opt_volume === undefined ){\r
 256                                         return X_Audio_Sprite_TEMP.volume;\r
 257                                 };\r
 258                                 for( i = X_Audio_Sprite_TEMP.tracks.length; i; ){\r
 259                                         X_Audio_Sprite_TEMP.tracks[ --i ].volume( opt_volume );\r
 260                                 };\r
 261                                 return this;\r
 262                         };\r
 263                         track = X_Audio_Sprite_TEMP.tracks[ uid ];\r
 264                         if( opt_volume === undefined ){\r
 265                                 return track ? track.gain : -1;\r
 266                         };\r
 267                         track && track.volume( opt_volume );\r
 268                         return this;\r
 269                 },\r
 270                 \r
 271                 'state' : function( uid, opt_obj ){\r
 272                         var track = X_Audio_Sprite_TEMP.tracks[ uid ],\r
 273                                 state, start, end;\r
 274                         // TODO uid = 0\r
 275                         if( opt_obj === undefined ){\r
 276                                 // TODO pause\r
 277                                 if( track ){\r
 278                                         state = track.getState();\r
 279                                         start = state.startTime;\r
 280                                         return {\r
 281                                         'currentTime' : state.currentTime - start,\r
 282                                         'playing'     : start <= state.currentTime && state.currentTime <= state.endTime,\r
 283                                         'duration'    : state.endTime - start,\r
 284                                         'volume'      : X_Audio_Sprite_TEMP.volume\r
 285                                         };\r
 286                                 };\r
 287                                 return { 'volume' : X_Audio_Sprite_TEMP.volume, 'playing' : false };\r
 288                         };\r
 289                         track && track.setState( opt_obj );\r
 290                         return this;\r
 291                 }\r
 292 };\r
 293 \r
 294 function X_AudioSprite_backendHandler( e ){\r
 295         var i, backend, option, src, name, last, _e;\r
 296         \r
 297         switch( e.type ){\r
 298                 case X_EVENT_BACKEND_READY :\r
 299                 \r
 300                         backend = X_Audio_BACKENDS[ e[ 'backendID' ] ];\r
 301                         option  = e[ 'option' ];\r
 302                         \r
 303                         this[ 'unlisten' ]( X_EVENT_BACKEND_NONE, X_AudioSprite_backendHandler );\r
 304                         this[ 'source' ]      = src = e[ 'source' ];\r
 305                         this[ 'backendName' ] = name = backend.backendName;\r
 306                 \r
 307                         for( i = 0; i < X_Audio_Sprite_numTracks; ++i ){\r
 308                                 if( X_Audio_Sprite_useVideo || ( i === 1 && X_Audio_Sprite_useVideoForMulti ) ){\r
 309                                         option[ 'useVideo' ] = true;\r
 310                                 };\r
 311                                 // Audiobackend の owner として null を渡すとAudioBackend 自身へ dispatch する\r
 312                                 X_Audio_Sprite_TEMP.tracks.push( last = backend.klass( null, e[ 'source' ], option ) );\r
 313                         };\r
 314 \r
 315                         _e = {\r
 316                                 'type'        : X_EVENT_BACKEND_READY,\r
 317                                 'source'      : src,\r
 318                                 'backendName' : name\r
 319                         };\r
 320                         \r
 321                         if( X_Audio_Sprite_needTouchFirst ){\r
 322                                 if( name === 'Web Audio' ){\r
 323                                         _e[ 'needTouchForPlay' ] = true;\r
 324                                 } else {\r
 325                                         _e[ 'needTouchForLoad' ] = true;\r
 326                                 };\r
 327                         };\r
 328                         this[ 'asyncDispatch' ]( _e );\r
 329                         \r
 330                         last[ 'listenOnce' ]( X_EVENT_READY, this, X_AudioSprite_backendHandler );\r
 331 \r
 332                         // READY, needTouchForPlay, needTouchForLoad\r
 333                         if( X_Audio_HTMLAudioWrapper_durationFix ){\r
 334                                 for( i = 0; i < X_Audio_Sprite_TEMP.tracks.length; ++i ){\r
 335                                         this[ 'pause' ]( i );\r
 336                                 };\r
 337                         };\r
 338                         \r
 339                         return X_CALLBACK_STOP_NOW;\r
 340 \r
 341                 case X_EVENT_BACKEND_NONE :\r
 342                         this[ 'unlisten' ]( X_EVENT_BACKEND_READY, this, X_AudioSprite_backendHandler )\r
 343                                 [ 'asyncDispatch' ]( X_EVENT_BACKEND_NONE );\r
 344                         return X_CALLBACK_STOP_NOW;\r
 345                 \r
 346                 case X_EVENT_READY :\r
 347                         console.log( 'X.AudioSprite - Ready!' );\r
 348                         \r
 349                         if( X_Audio_Sprite_needTouchAndroid ){\r
 350                                 for( i = 0; i < X_Audio_Sprite_TEMP.tracks.length; ++i ){\r
 351                                         this[ 'pause' ]( i );\r
 352                                 };\r
 353                                 e.target[ 'listenOnce' ]( X_EVENT_MEDIA_PLAYING, this, this.asyncDispatch, [ X_EVENT_READY ] ); // Android 標準ブラウザ\r
 354                                 return;\r
 355                         };\r
 356                         this[ 'asyncDispatch' ]( X_EVENT_READY );\r
 357                         break;\r
 358         };\r
 359 };\r
 360 \r
 361 \r
 362 function X_Audio_Sprite_handleEvent( e ){\r
 363         var i, tracks, track, _e, k;\r
 364         \r
 365         switch( e.type ){\r
 366                 case X_EVENT_MEDIA_PLAYING :\r
 367                         ( e.target === X_Audio_Sprite_TEMP.bgmTrack || !e.target.looped ) && this[ 'asyncDispatch' ]( X_EVENT_MEDIA_PLAYING );\r
 368                         break;\r
 369                 \r
 370                 case X_EVENT_MEDIA_BEFORE_LOOP :\r
 371                         if( e.target === X_Audio_Sprite_TEMP.bgmTrack ){\r
 372                                 X_Audio_Sprite_TEMP.bgmLooped = true;\r
 373                                 this[ 'asyncDispatch' ]( X_EVENT_MEDIA_LOOPED ); // TODO uid\r
 374                         } else {\r
 375                                 if( e.target.looped ){\r
 376                                         //this[ 'asyncDispatch' ]( X_EVENT_MEDIA_LOOPED ); // TODO uid\r
 377                                 } else {\r
 378                                         this[ 'asyncDispatch' ]( X_EVENT_MEDIA_ENDED ); // TODO uid\r
 379                                 };\r
 380                                 \r
 381                                 console.log( '[AudioSprite] ' + X_Audio_Sprite_TEMP.bgmPlaying + ' ' + !X_Audio_Sprite_TEMP.bgmTrack );\r
 382                                 \r
 383                                 // single track | iOS\r
 384                                 if( X_Audio_Sprite_TEMP.bgmPlaying && !X_Audio_Sprite_TEMP.bgmTrack ){\r
 385                                         X_Audio_Sprite_TEMP.bgmTrack = e.target;\r
 386                                         this.play( X_Audio_Sprite_TEMP.bgmName );\r
 387                                         return X.Callback.PREVENT_DEFAULT;\r
 388                                 };\r
 389                         };\r
 390                         break;\r
 391                 \r
 392                 // TODO Android Firefox で アクティブ検出できない！\r
 393                 case X_EVENT_VIEW_ACTIVATE :\r
 394                         console.log( '■ アクティブ' );\r
 395                         // track.play(); or iOS need touch??\r
 396                         tracks = X_Audio_Sprite_TEMP.pauseTracks;\r
 397                         while( tracks.length ) tracks.pop().actualPlay();\r
 398                         break;\r
 399 \r
 400                 case X_EVENT_VIEW_DEACTIVATE :\r
 401                         console.log( '■ デアクティブ' );\r
 402                         // track.pause();\r
 403                         tracks = X_Audio_Sprite_TEMP.tracks;\r
 404                         i      = tracks.length;\r
 405                         for( ; i; ){\r
 406                                 track = tracks[ --i ];\r
 407                                 track.playing && X_Audio_Sprite_TEMP.pauseTracks.push( track ) && track.pause();\r
 408                         };\r
 409                         break;\r
 410                 \r
 411                 case X_EVENT_KILL_INSTANCE :\r
 412                         \r
 413                         while( X_Audio_Sprite_TEMP.tracks.length ){\r
 414                                 X_Audio_Sprite_TEMP.tracks.pop()[ 'kill' ]();\r
 415                         };\r
 416                         \r
 417                         for( k in X_Audio_Sprite_TEMP.bgms ){\r
 418                                 delete X_Audio_Sprite_TEMP.bgms[ k ];\r
 419                         };\r
 420                         for( k in X_Audio_Sprite_TEMP.presets ){\r
 421                                 delete X_Audio_Sprite_TEMP.presets[ k ];\r
 422                         };\r
 423                         \r
 424                         X_Audio_Sprite_TEMP.bgmTrack    = null;\r
 425                         X_Audio_Sprite_TEMP.bgmPosition = 0;\r
 426                         X_Audio_Sprite_TEMP.bgmName     = '';\r
 427                         X_Audio_Sprite_TEMP.bgmLooped   = false;\r
 428                         X_Audio_Sprite_TEMP.bgmPlaying  = false;\r
 429                         \r
 430                         X_ViewPort[ 'unlisten' ]( [ X_EVENT_VIEW_ACTIVATE, X_EVENT_VIEW_DEACTIVATE ], this, X_Audio_Sprite_handleEvent );\r
 431                         break;\r
 432         };\r
 433 };\r