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_AudioSprite_shouldUse        = X_HTMLAudio && ( X_UA[ 'iOS' ] || X_UA[ 'AOSP' ] || X_UA[ 'OperaMobile' ] || X_UA[ 'OperaTablet' ] ), // Flash がない\r
   8         X_AudioSprite_useVideoForMulti = //( 3.1 <= X_UA[ 'AOSP' ] < 4 ) || \r
   9                                                                           //( ( 4.2 <= X_UA[ 'AOSP' ] ),\r
  10                                                                           // ドスパラパッドはビデオのインライン再生が不可\r
  11                                                                           false, //X_UA[ 'ChromeWV' ],\r
  12         X_AudioSprite_needTouchAndroid = X_UA[ 'ChromeWV' ] && !X_WebAudio,\r
  13         X_AudioSprite_needTouchFirst   = X_HTMLAudio_need1stTouch,\r
  14         X_AudioSprite_disableMultiTrack = ( X_UA[ 'iOS' ] && !X_WebAudio_context ) || ( X_UA[ 'AOSP4' ] ) || ( X_UA[ 'WinPhone' ] && X_UA[ 'IE' ] < 12 ),\r
  15         X_AudioSprite_enableVolume     = X_HTMLAudio && ( !X_UA[ 'iOS' ] && !X_UA[ 'AOSP' ] && !X_UA[ 'OperaMobile' ] && !X_UA[ 'OperaTablet' ] ), // TODO fennec は 25以上\r
  16         // http://tukumemo.com/html5-audio-sp/\r
  17         // iOS6、Android4.1から同時再生が可能になりました。\r
  18         X_AudioSprite_maxTracks        = X_AudioSprite_useVideoForMulti ? 2 : X_AudioSprite_disableMultiTrack ? 1 : 9,\r
  19         X_AudioSprite_lengthSilence    = 10000, // 一番最初の無音部分の長さ\r
  20         X_AudioSprite_lengthDistance   = 5000,  // 音間の無音の長さ\r
  21         X_AudioSprite_uid              = 0,\r
  22         X_AudioSprite_members          = {},\r
  23         X_AudioSprite_TEMP             = {\r
  24                 presets     : {},\r
  25                 BGMs        : {},\r
  26                 tracks      : [],\r
  27                 pauseTracks : [], // X_EVENT_DEACTIVATE によって pause した再生中のトラックたち。\r
  28                 volume      : 1,\r
  29                 bgmTrack    : null,\r
  30                 bgmPosition : 0,\r
  31                 bgmName     : '',\r
  32                 bgmLooped   : false,\r
  33                 bgmPlaying  : false\r
  34         },\r
  35         X_AudioSprite_instance,\r
  36         X_AudioSprite_numTracks,\r
  37         X_AudioSprite_useVideo;\r
  38 \r
  39 /**\r
  40  * {\r
  41  *       urls      : [ 'xx.ogg', 'xx.mp3' ],\r
  42  *       numTracks : 3,\r
  43  *   useVideo  : false,\r
  44  *   volume    : 1,\r
  45  *       BGM_01 : [ '15.00', '45.500', true, '17.666', '50.999' ],\r
  46  *   BGM_02 : [ '56.00', '1:15.230', true ]\r
  47  * }\r
  48  * \r
  49  * X_EVENT_BACKEND_READY\r
  50  * X_EVENT_BACKEND_NONE\r
  51  * \r
  52  * X_EVENT_READY\r
  53  * X_EVENT_MEDIA_LOOPED\r
  54  * X_EVENT_MEDIA_ENDED\r
  55  * \r
  56  * @namespace X.AudioSprite\r
  57  * @alias X.AudioSprite\r
  58  */ \r
  59 X[ 'AudioSprite' ] = function( setting ){\r
  60         var tracks  = X_AudioSprite_TEMP.tracks,\r
  61                 bgms    = X_AudioSprite_TEMP.BGMs,\r
  62                 presets = X_AudioSprite_TEMP.presets,\r
  63                 urls    = setting[ 'urls' ],\r
  64                 video   = setting[ 'useVideo' ],\r
  65                 n       = video ? 1 : setting[ 'numTracks' ] || 1,\r
  66                 option  = {\r
  67                         volume    : setting[ 'volume' ] || 0.5,\r
  68                         autoplay  : false,\r
  69                         startTime : 0,\r
  70                         endTime   : X_AudioSprite_lengthSilence,\r
  71                         loop      : true\r
  72                 },\r
  73                 k, i, v, track; \r
  74         \r
  75         if( !X_AudioSprite_instance ){\r
  76                 X_AudioSprite_instance = X_Class_override( X_EventDispatcher(), X_AudioSprite_members );\r
  77                 X_ViewPort[ 'listen' ]( [ X_EVENT_VIEW_ACTIVATE, X_EVENT_VIEW_DEACTIVATE ], X_AudioSprite_instance, X_AudioSprite_handleEvent );\r
  78         };\r
  79         \r
  80         n = n <= X_AudioSprite_maxTracks ? n : X_AudioSprite_maxTracks;\r
  81         \r
  82         // TODO\r
  83         // Android4.x標準ブラウザ(Chrome系)でブラウザが隠れた場合に音が鳴り続ける問題、ビデオで解決できる？\r
  84         //if( X_AudioSprite_needTouchAndroid && n === 1 ){\r
  85         //      video = true;\r
  86         //};\r
  87         \r
  88         for( k in setting ){\r
  89                 v = setting[ k ];\r
  90                 if( X_Type_isArray( v ) && v !== urls ){\r
  91                         v = X_Array_copy( v );\r
  92                         for( i = v.length; i; ){\r
  93                                 --i;\r
  94                                 if( i !== 2 ) v[ i ] = X_Audio_timeStringToNumber( v[ i ] );\r
  95                         };                                      \r
  96                         if( v[ 2 ] ) bgms[ k ] = v;\r
  97                         presets[ k ] = v;\r
  98                 };\r
  99         };\r
 100         \r
 101         X_Audio_startDetectionBackend( X_Audio_BACKENDS[ 0 ], X_AudioSprite_instance, X_Array_copy( urls ), option );\r
 102 \r
 103         X_AudioSprite_instance[ 'listenOnce' ]( [ X_EVENT_BACKEND_READY, X_EVENT_BACKEND_NONE ], X_AudioSprite_backendHandler );\r
 104         X_AudioSprite_instance[ 'listenOnce' ]( X_EVENT_KILL_INSTANCE, X_AudioSprite_handleEvent );\r
 105         \r
 106         X_AudioSprite_useVideo  = video;\r
 107         X_AudioSprite_numTracks = X_AudioSprite_instance[ 'numTracks' ] = n;\r
 108 \r
 109         return X_AudioSprite_instance;\r
 110 };\r
 111 \r
 112 X[ 'AudioSprite' ][ 'shouldUse'        ] = X_AudioSprite_shouldUse;\r
 113 X[ 'AudioSprite' ][ 'needTouchFirst'   ] = X_AudioSprite_needTouchFirst;\r
 114 X[ 'AudioSprite' ][ 'enableMultiTrack' ] = !X_AudioSprite_disableMultiTrack;\r
 115 \r
 116 // 再生が終わっているもの、終わりかけのものを探す\r
 117 // 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.AudioSprite は使わず自力で実装\r
 118 function X_AudioSprite_getTrackEnded(){\r
 119         var tracks  = X_AudioSprite_TEMP.tracks,\r
 120                 l = tracks.length,\r
 121                 i = 0, track, state, last = 1 / 0, _last, index;\r
 122         \r
 123         for( ; i < l; ++i ){\r
 124                 track = tracks[ i ];\r
 125                 state = track.getState();\r
 126                 if( !state.playing ) return track;\r
 127                 if( track === X_AudioSprite_TEMP.bgmTrack ) continue;\r
 128                 if( state.currentTime <= X_AudioSprite_lengthSilence + X_AudioSprite_lengthDistance ) return track;\r
 129                 _last = state.endTime - state.currentTime;\r
 130                 if( _last < last ){\r
 131                         last  = _last;\r
 132                         index = i;\r
 133                 };\r
 134         };\r
 135         return tracks[ index ];\r
 136 };\r
 137 \r
 138 X_AudioSprite_members =\r
 139 /** @lends X.AudioSprite.prototype */\r
 140 {\r
 141                 /**\r
 142                  * @type {number}\r
 143                  */\r
 144                 'numTracks' : 0,\r
 145                 \r
 146                 /**\r
 147                  * モバイル用タッチイベント中に呼び出す\r
 148                  */\r
 149                 'load' : function(){\r
 150                         var tracks = X_AudioSprite_TEMP.tracks,\r
 151                                 i = 0, l = tracks.length;\r
 152 \r
 153                         for( ; i < l; ++i ){\r
 154                                 if( X_AudioSprite_needTouchAndroid ){\r
 155                                         console.log( '[duration fix]開始 - ' + tracks[ i ][ '_rawObject' ].duration );\r
 156                                         tracks[ i ]._durationFixPhase = 1;\r
 157                                         tracks[ i ][ '_rawObject' ].play();\r
 158                                 } else\r
 159                                 if( X_UA[ 'WinPhone' ] ){\r
 160                                         console.log( 'WinPhone : touch -> play()' );\r
 161                                         //tracks[ i ].play( 0, X_AudioSprite_lengthSilence, true, 0, X_AudioSprite_lengthSilence ).seek( 0 );\r
 162                                         this[ 'pause' ]( i );\r
 163                                 } else {\r
 164                                         tracks[ i ][ '_rawObject' ].load();\r
 165                                 };\r
 166                         };\r
 167                 },\r
 168                 \r
 169                 /**\r
 170                  * 再生\r
 171                  * @param {string} name トラック名\r
 172                  * @return {number} uid\r
 173                  */\r
 174                 'play' : function( name ){\r
 175                         var bgm     = X_AudioSprite_TEMP.bgmTrack,\r
 176                                 tracks  = X_AudioSprite_TEMP.tracks,\r
 177                                 bgms    = X_AudioSprite_TEMP.BGMs,\r
 178                                 presets = X_AudioSprite_TEMP.presets,\r
 179                                 preset  = presets[ name ],\r
 180                                 track, i, k;\r
 181                         \r
 182                         if( preset ){\r
 183                                 if( bgms[ name ] ){\r
 184                                         if( name !== X_AudioSprite_TEMP.bgmName ){\r
 185                                                 // bgm変更\r
 186                                                 X_AudioSprite_TEMP.bgmName     = name;\r
 187                                                 X_AudioSprite_TEMP.bgmPosition = preset[ 0 ];\r
 188                                                 X_AudioSprite_TEMP.bgmLooped   = false;\r
 189                                         };\r
 190                                         \r
 191                                         X_AudioSprite_TEMP.bgmPlaying = true;\r
 192                                         \r
 193                                         if( bgm ){\r
 194                                                 track = bgm;\r
 195                                         } else\r
 196                                         if( 1 < tracks.length ){\r
 197                                                 track = X_AudioSprite_TEMP.bgmTrack = X_AudioSprite_getTrackEnded();\r
 198                                         } else {\r
 199                                                 track = X_AudioSprite_TEMP.bgmTrack = tracks[ 0 ];\r
 200                                         };\r
 201                                         \r
 202                                         if( track[ 'listen' ]( [ X_EVENT_MEDIA_PLAYING, X_EVENT_MEDIA_WAITING, X_EVENT_MEDIA_SEEKING, X_EVENT_MEDIA_BEFORE_LOOP ], this, X_AudioSprite_handleEvent ).playing ){\r
 203                                                 track.setState({\r
 204                                                                 'loop'          : true,\r
 205                                                                 'looped'        : X_AudioSprite_TEMP.bgmLooped,\r
 206                                                                 'currentTime'   : X_AudioSprite_TEMP.bgmPosition,\r
 207                                                                 'startTime'     : preset[ 0 ],\r
 208                                                                 'endTime'       : preset[ 1 ],\r
 209                                                                 'loopStartTime' : preset[ 3 ],\r
 210                                                                 'loopEndTime'   : preset[ 4 ]\r
 211                                                         });\r
 212                                         } else {\r
 213                                                 track.setState( { 'looped' : X_AudioSprite_TEMP.bgmLooped } );\r
 214                                                 track.play( preset[ 0 ], preset[ 1 ], true, preset[ 3 ], preset[ 4 ] );\r
 215                                                 track.seek( X_AudioSprite_TEMP.bgmPosition );\r
 216                                         };\r
 217                                         \r
 218                                 } else {\r
 219                                         if( 1 < tracks.length ){\r
 220                                                 track = X_AudioSprite_getTrackEnded( X_AudioSprite_TEMP.bgmPlaying );\r
 221                                                 track\r
 222                                                         [ 'listen' ]( [ X_EVENT_MEDIA_PLAYING, X_EVENT_MEDIA_WAITING, X_EVENT_MEDIA_SEEKING, X_EVENT_MEDIA_BEFORE_LOOP ], this, X_AudioSprite_handleEvent )\r
 223                                                         .setState( { 'looped' : false } );\r
 224                                                 track.play( preset[ 0 ], preset[ 1 ], true, 0, X_AudioSprite_lengthSilence );\r
 225                                         } else {\r
 226                                                 // single track, iOS\r
 227                                                 if( bgm ){\r
 228                                                         X_AudioSprite_TEMP.bgmPosition = bgm.currentTime();\r
 229                                                         //console.log( 'bgm position : ' + X_AudioSprite_TEMP.bgmPosition + ' isPlay:' +  bgm.playing );\r
 230                                                         X_AudioSprite_TEMP.bgmTrack    = null;\r
 231                                                 };\r
 232                                                 track = tracks[ 0 ];\r
 233                                         \r
 234                                                 if( track[ 'listen' ]( [ X_EVENT_MEDIA_PLAYING, X_EVENT_MEDIA_WAITING, X_EVENT_MEDIA_SEEKING, X_EVENT_MEDIA_BEFORE_LOOP ], this, X_AudioSprite_handleEvent ).playing ){\r
 235                                                         track.setState({\r
 236                                                                         'loop'          : true,\r
 237                                                                         'looped'        : false,\r
 238                                                                         //'currentTime'   : preset[ 0 ],\r
 239                                                                         'startTime'     : preset[ 0 ],\r
 240                                                                         'endTime'       : preset[ 1 ],\r
 241                                                                         'loopStartTime' : 0,\r
 242                                                                         'loopEndTime'   : X_AudioSprite_lengthSilence\r
 243                                                                 });\r
 244                                                 } else {\r
 245                                                         \r
 246                                                         track.play( preset[ 0 ], preset[ 1 ], true, 0, X_AudioSprite_lengthSilence );   \r
 247                                                 };\r
 248                                         };\r
 249                                 };\r
 250                                 return tracks.indexOf( track );\r
 251                         };\r
 252                         return -1;\r
 253                 },\r
 254                 \r
 255                 /**\r
 256                  * ポーズ\r
 257                  * @param {number} uid トラックID\r
 258                  * @return {number} uid\r
 259                  */\r
 260                 'pause' : function( uid ){\r
 261                         var track = X_AudioSprite_TEMP.tracks[ uid ];\r
 262                         \r
 263                         if( X_AudioSprite_TEMP.bgmTrack === track ){\r
 264                                 X_AudioSprite_TEMP.bgmPosition = track.currentTime();\r
 265                                 X_AudioSprite_TEMP.bgmPlaying  = false;\r
 266                                 X_AudioSprite_TEMP.bgmTrack    = null;\r
 267                         };\r
 268                         track && track.play( 0, X_AudioSprite_lengthSilence, true, 0, X_AudioSprite_lengthSilence );\r
 269                         track && track.seek( 0 );\r
 270                         this[ 'asyncDispatch' ]( X_EVENT_MEDIA_PAUSED );\r
 271                         return this;\r
 272                 },\r
 273                 \r
 274                 /**\r
 275                  * シーク\r
 276                  * @param {number} uid トラックID\r
 277                  * @param {number} position ms\r
 278                  * @return {AudioSprite}\r
 279                  */\r
 280                 'seek' : function( uid, position ){\r
 281                         var track = X_AudioSprite_TEMP.tracks[ uid ],\r
 282                                 end, strat;\r
 283                         if( track ){\r
 284                                 delete track.seekTime;\r
 285                                 end   = X_Audio_getEndTime( track );\r
 286                                 start = X_Audio_getStartTime( track, end );\r
 287                                 0 <= position && position <= ( end - start ) && track.seek( start + position );\r
 288                         };\r
 289                         return this;\r
 290                 },\r
 291                 \r
 292                 /**\r
 293                  * ボリューム\r
 294                  * @param {number} uid トラックID\r
 295                  * @param {number} opt_volume= ボリューム\r
 296                  * @return {AudioSprite|number}\r
 297                  */\r
 298                 'volume' : function( uid, opt_volume ){\r
 299                         var track, i;\r
 300                         // TODO uid = 0\r
 301                         if( uid === 0 ){\r
 302                                 if( opt_volume === undefined ){\r
 303                                         return X_AudioSprite_TEMP.volume;\r
 304                                 };\r
 305                                 for( i = X_AudioSprite_TEMP.tracks.length; i; ){\r
 306                                         X_AudioSprite_TEMP.tracks[ --i ].volume( opt_volume );\r
 307                                 };\r
 308                                 return this;\r
 309                         };\r
 310                         track = X_AudioSprite_TEMP.tracks[ uid ];\r
 311                         if( opt_volume === undefined ){\r
 312                                 return track ? track.gain : -1;\r
 313                         };\r
 314                         track && track.volume( opt_volume );\r
 315                         return this;\r
 316                 },\r
 317                 \r
 318                 /**\r
 319                  * 状態の取得・更新\r
 320                  * @param {number} uid トラックID\r
 321                  * @param {object} opt_obj= 上書きする状態を書き込んだオブジェクト\r
 322                  * @return {AudioSprite|object}\r
 323                  */\r
 324                 'state' : function( uid, opt_obj ){\r
 325                         var track = X_AudioSprite_TEMP.tracks[ uid ],\r
 326                                 state, start, end;\r
 327                         // TODO uid = 0\r
 328                         if( opt_obj === undefined ){\r
 329                                 // TODO pause\r
 330                                 if( track ){\r
 331                                         state = track.getState();\r
 332                                         start = state.startTime;\r
 333                                         return {\r
 334                                         'currentTime' : state.currentTime - start,\r
 335                                         'playing'     : start <= state.currentTime && state.currentTime <= state.endTime,\r
 336                                         'duration'    : state.endTime - start,\r
 337                                         'volume'      : X_AudioSprite_TEMP.volume\r
 338                                         };\r
 339                                 };\r
 340                                 return { 'volume' : X_AudioSprite_TEMP.volume, 'playing' : false };\r
 341                         };\r
 342                         track && track.setState( opt_obj );\r
 343                         return this;\r
 344                 }\r
 345 };\r
 346 \r
 347 function X_AudioSprite_backendHandler( e ){\r
 348         var i, backend, option, src, name, last, _e;\r
 349         \r
 350         switch( e.type ){\r
 351                 case X_EVENT_BACKEND_READY :\r
 352                 \r
 353                         backend = X_Audio_BACKENDS[ e[ 'backendID' ] ];\r
 354                         option  = e[ 'option' ];\r
 355                         \r
 356                         this[ 'unlisten' ]( X_EVENT_BACKEND_NONE, X_AudioSprite_backendHandler );\r
 357                         this[ 'source' ]      = src = e[ 'source' ];\r
 358                         this[ 'backendName' ] = name = backend.backendName;\r
 359                 \r
 360                         //console.log( i + ' / ' + X_AudioSprite_numTracks );\r
 361                 \r
 362                         for( i = 0; i < X_AudioSprite_numTracks; ++i ){\r
 363                                 if( X_AudioSprite_useVideo || ( i === 1 && X_AudioSprite_useVideoForMulti ) ){\r
 364                                         option[ 'useVideo' ] = true;\r
 365                                         console.log( 'use video' );\r
 366                                 };\r
 367                                 // Audiobackend の owner として null を渡すとAudioBackend 自身へ dispatch する\r
 368                                 X_AudioSprite_TEMP.tracks.push( last = backend.klass( null, e[ 'source' ], option ) );\r
 369                                 \r
 370                                 \r
 371                                 //console.dir( backend );\r
 372                                 //console.dir( last );\r
 373                         };\r
 374 \r
 375                         _e = {\r
 376                                 'type'        : X_EVENT_BACKEND_READY,\r
 377                                 'source'      : src,\r
 378                                 'backendName' : name\r
 379                         };\r
 380                         \r
 381                         if( X_AudioSprite_needTouchFirst ){\r
 382                                 if( name === 'WebAudio' ){\r
 383                                         _e[ 'needTouchForPlay' ] = true;\r
 384                                 } else {\r
 385                                         _e[ 'needTouchForLoad' ] = true;\r
 386                                 };\r
 387                         };\r
 388                         this[ 'asyncDispatch' ]( _e );\r
 389                         \r
 390                         console.log( 'AudioSprite - X_EVENT_BACKEND_READY' );\r
 391                         \r
 392                         last[ 'listenOnce' ]( X_EVENT_READY, this, X_AudioSprite_backendHandler );\r
 393 \r
 394                         // READY, needTouchForPlay, needTouchForLoad\r
 395                         if( X_HTMLAudio_durationFix && !X_AudioSprite_needTouchFirst ){\r
 396                                 for( i = 0; i < X_AudioSprite_TEMP.tracks.length; ++i ){\r
 397                                         this[ 'pause' ]( i );\r
 398                                 };\r
 399                         };\r
 400                         \r
 401                         return X_CALLBACK_STOP_NOW;\r
 402 \r
 403                 case X_EVENT_BACKEND_NONE :\r
 404                         this[ 'unlisten' ]( X_EVENT_BACKEND_READY, this, X_AudioSprite_backendHandler )\r
 405                                 [ 'asyncDispatch' ]( X_EVENT_BACKEND_NONE );\r
 406                         return X_CALLBACK_STOP_NOW;\r
 407                 \r
 408                 case X_EVENT_READY :\r
 409                         if( X_AudioSprite_needTouchAndroid ){\r
 410                                 for( i = 0; i < X_AudioSprite_TEMP.tracks.length; ++i ){\r
 411                                         this[ 'pause' ]( i );\r
 412                                 };\r
 413                                 e.target[ 'listenOnce' ]( X_EVENT_MEDIA_PLAYING, this, this[ 'asyncDispatch' ], [ X_EVENT_READY ] );\r
 414                                 return;\r
 415                         };\r
 416                         \r
 417                         console.log( 'X.AudioSprite - Ready!' );\r
 418                         this[ 'asyncDispatch' ]( X_EVENT_READY );\r
 419                         break;\r
 420         };\r
 421 };\r
 422 \r
 423 \r
 424 function X_AudioSprite_handleEvent( e ){\r
 425         var i, tracks, track, _e, k;\r
 426         \r
 427         switch( e.type ){\r
 428                 case X_EVENT_MEDIA_PLAYING :\r
 429                         ( e.target === X_AudioSprite_TEMP.bgmTrack || !e.target.looped ) && this[ 'asyncDispatch' ]( X_EVENT_MEDIA_PLAYING );\r
 430                         break;\r
 431                 case X_EVENT_MEDIA_WAITING :\r
 432                 case X_EVENT_MEDIA_SEEKING :\r
 433                         ( e.target === X_AudioSprite_TEMP.bgmTrack || !e.target.looped ) && this[ 'asyncDispatch' ]( e.type );\r
 434                         break;\r
 435                 \r
 436                 case X_EVENT_MEDIA_BEFORE_LOOP :\r
 437                         if( e.target === X_AudioSprite_TEMP.bgmTrack ){\r
 438                                 X_AudioSprite_TEMP.bgmLooped = true;\r
 439                                 this[ 'asyncDispatch' ]( X_EVENT_MEDIA_LOOPED ); // TODO uid\r
 440                         } else {\r
 441                                 if( e.target.looped ){\r
 442                                         //this[ 'asyncDispatch' ]( X_EVENT_MEDIA_LOOPED ); // TODO uid\r
 443                                 } else {\r
 444                                         this[ 'asyncDispatch' ]( X_EVENT_MEDIA_ENDED ); // TODO uid\r
 445                                 };\r
 446                                 \r
 447                                 //console.log( '[AudioSprite] bgmPlaying:' + X_AudioSprite_TEMP.bgmPlaying + ' ' + !X_AudioSprite_TEMP.bgmTrack );\r
 448                                 \r
 449                                 // single track | iOS\r
 450                                 if( X_AudioSprite_TEMP.bgmPlaying && !X_AudioSprite_TEMP.bgmTrack ){\r
 451                                         X_AudioSprite_TEMP.bgmTrack = e.target;\r
 452                                         this.play( X_AudioSprite_TEMP.bgmName );\r
 453                                         return X_CALLBACK_PREVENT_DEFAULT;\r
 454                                 };\r
 455                         };\r
 456                         break;\r
 457                 \r
 458                 // TODO Android Firefox で アクティブ検出できない！\r
 459                 case X_EVENT_VIEW_ACTIVATE :\r
 460                         console.log( '■ アクティブ' );\r
 461                         // track.play(); or iOS need touch??\r
 462                         tracks = X_AudioSprite_TEMP.pauseTracks;\r
 463                         while( tracks.length ) tracks.pop().actualPlay();\r
 464                         break;\r
 465 \r
 466                 case X_EVENT_VIEW_DEACTIVATE :\r
 467                         console.log( '■ デアクティブ' );\r
 468                         // track.pause();\r
 469                         tracks = X_AudioSprite_TEMP.tracks;\r
 470                         i      = tracks.length;\r
 471                         for( ; i; ){\r
 472                                 track = tracks[ --i ];\r
 473                                 track.playing && X_AudioSprite_TEMP.pauseTracks.push( track ) && track.pause();\r
 474                         };\r
 475                         break;\r
 476                 \r
 477                 case X_EVENT_KILL_INSTANCE :\r
 478                         \r
 479                         while( X_AudioSprite_TEMP.tracks.length ){\r
 480                                 X_AudioSprite_TEMP.tracks.pop()[ 'kill' ]();\r
 481                         };\r
 482                         \r
 483                         for( k in X_AudioSprite_TEMP.bgms ){\r
 484                                 delete X_AudioSprite_TEMP.bgms[ k ];\r
 485                         };\r
 486                         for( k in X_AudioSprite_TEMP.presets ){\r
 487                                 delete X_AudioSprite_TEMP.presets[ k ];\r
 488                         };\r
 489                         \r
 490                         X_AudioSprite_TEMP.bgmTrack    = null;\r
 491                         X_AudioSprite_TEMP.bgmPosition = 0;\r
 492                         X_AudioSprite_TEMP.bgmName     = '';\r
 493                         X_AudioSprite_TEMP.bgmLooped   = false;\r
 494                         X_AudioSprite_TEMP.bgmPlaying  = false;\r
 495                         \r
 496                         X_ViewPort[ 'unlisten' ]( [ X_EVENT_VIEW_ACTIVATE, X_EVENT_VIEW_DEACTIVATE ], this, X_AudioSprite_handleEvent );\r
 497                         break;\r
 498         };\r
 499 };\r