0.6.x/js/07_audio/02_XHTMLAudio.js

   1 \r
   2 /*\r
   3  * original : uupaa-js HTML5Audio.js\r
   4  * https://code.google.com/p/uupaa-js/source/browse/trunk/0.8/src/Audio/HTML5Audio.js?r=568\r
   5  */\r
   6 \r
   7 var X_Audio_HTMLAudio_playTrigger =\r
   8                 6 <= X_UA[ 'iOS' ] ? 'loadeddata' :\r
   9                 X_UA[ 'iOS' ] < 5  ? 'stalled' :\r
  10                 X_UA[ 'iOS' ]      ? 'suspend' :\r
  11                 X_UA[ 'AndroidChromeBrowser' ] ? 'canplaythrough' :\r
  12                 // Android 2.3.5(SBM101SH) では stalled は発生しない,,,　ので必ず loadeddata もチェックする\r
  13                 X_UA[ 'AndroidBrowser' ] ? 'stalled' :\r
  14                 X_UA[ 'OperaMobile' ] || X_UA[ 'OperaTablet' ] ? 'loadeddata' :\r
  15                         'loadeddata', //'canplay',\r
  16         X_Audio_HTMLAudioWrapper,\r
  17         X_Audio_constructor = window[ 'Audio' ] || window.HTMLAudioElement,\r
  18         X_Audio_rawAudio,\r
  19         // onended イベント時に再生を継続する場合、audio.play() を呼ぶ必要がある\r
  20         X_Audio_HTMLAudioWrapper_needPlayOnended = !X_UA[ 'AndroidChromeBrowser' ] && X_UA[ 'AndroidBrowser' ],\r
  21         // Opera Mobile 12 android4.4.4 & 2.3.5 は 2回目以降の currentTime へのセットで currentTime が更新されなくなるため、タイマーを使用する\r
  22         X_Audio_HTMLAudioWrapper_currentTimeFix  = !!X_UA[ 'OperaMobile' ] || !!X_UA[ 'OperaTablet' ],\r
  23         // Android1.6+MobileOpera12では無理っぽい、、、\r
  24         X_Audio_HTMLAudioWrapper_badOperaAndroid = X_Audio_HTMLAudioWrapper_currentTimeFix && X_UA[ 'Android' ] < 2,\r
  25 \r
  26         // 一方 Desktop の Opera12 は、loadeddata 等では duration が infinity で、再生後の durationchange 時に duration が判明する。\r
  27         // opera12 volume, mute の変更が2度目以降できない\r
  28         // duration 判明後には currentTime によるシークと、現在時間の取得が可能になる。\r
  29         // canplay で play() durationchange で duration が取れたら loadedmetadata->loadeddata -> canplay する\r
  30         // boombox.js に書いてあった currentTime の効かないブラウザってこいつのことみたい、、、\r
  31         // Opera12.17 Win32(XP) portable apps は勝手に再生が始まる、、、その際には timeupdate が発行されない、、、　iframe+image+audio で使わないときは破棄する、とか。\r
  32         // opera11、10.54 WinXP はまとも、、、\r
  33         // X_Audio_Sprite_handleEvent でも使用\r
  34         X_Audio_HTMLAudioWrapper_ieMobile9Fix    = ( X_UA[ 'WinPhone' ] && X_UA[ 'IE9' ] ),\r
  35         X_Audio_HTMLAudioWrapper_durationFix     = ( !X_Audio_HTMLAudioWrapper_currentTimeFix && 12 <= X_UA[ 'Opera' ] ) || X_UA[ 'AndroidChromeBrowser' ],\r
  36         \r
  37         X_Audio_HTMLAudioWrapper_shortPlayFix    = X_UA[ 'AndroidBrowser' ] && X_UA[ 'AndroidWebkit' ] <= 534.3, // Android 4.1.1 でも遭遇(ただしm4a, mp3は優秀, oggはシークが乱れる)\r
  38         \r
  39         \r
  40         X_Audio_codecs;\r
  41 \r
  42 if( X_Audio_constructor && !X_Audio_HTMLAudioWrapper_badOperaAndroid ){\r
  43         //http://himaxoff.blog111.fc2.com/blog-entry-97.html\r
  44         //引数なしで new Audio() とすると、Operaでエラーになるそうなので注意。\r
  45         X_Audio_rawAudio = new X_Audio_constructor( '' );\r
  46 \r
  47         // https://html5experts.jp/miyuki-baba/3766/\r
  48         // Chrome for Android31 で HE-AAC が低速再生されるバグ\r
  49         // TODO Android4 標準ブラウザで ogg のシークが正しくない！\r
  50         if( X_Audio_rawAudio.canPlayType ){\r
  51                 X_Audio_codecs = {\r
  52               'mp3'  : X_Audio_rawAudio.canPlayType('audio/mpeg'),\r
  53               'opus' : X_Audio_rawAudio.canPlayType('audio/ogg; codecs="opus"'),\r
  54               'ogg'  : X_Audio_rawAudio.canPlayType('audio/ogg; codecs="vorbis"'),\r
  55               'wav'  : X_Audio_rawAudio.canPlayType('audio/wav; codecs="1"'),\r
  56               'aac'  : X_Audio_rawAudio.canPlayType('audio/aac'),\r
  57               'm4a'  : X_Audio_rawAudio.canPlayType('audio/x-m4a') + X_Audio_rawAudio.canPlayType('audio/m4a') + X_Audio_rawAudio.canPlayType('audio/aac'),\r
  58               'mp4'  : X_Audio_rawAudio.canPlayType('audio/x-mp4') + X_Audio_rawAudio.canPlayType('audio/mp4') + X_Audio_rawAudio.canPlayType('audio/aac'),\r
  59               'weba' : X_Audio_rawAudio.canPlayType('audio/webm; codecs="vorbis"')\r
  60                 };\r
  61                 (function( X_Audio_codecs, k, v ){\r
  62                         for( k in X_Audio_codecs ){\r
  63                                 //if( X_EMPTY_OBJECT[ k ] ) continue;\r
  64                                 v = X_Audio_codecs[ k ];\r
  65                                 v = v && !!( v.split( 'no' ).join( '' ) );\r
  66                                 if( v ){\r
  67                                         console.log( k + ' ' + X_Audio_codecs[ k ] );\r
  68                                         X_Audio_codecs[ k ] = true;\r
  69                                 } else {\r
  70                                         delete X_Audio_codecs[ k ];\r
  71                                 };\r
  72                         };\r
  73                 })( X_Audio_codecs );\r
  74         } else {\r
  75                 // iOS3.2.3\r
  76                 X_Audio_codecs = {\r
  77               'mp3'  : X_UA[ 'IE' ] || X_UA[ 'Chrome' ] || ( X_UA[ 'Windows' ] && X_UA[ 'Safari' ]  ),\r
  78               'ogg'  : 5 <= X_UA[ 'Gecko' ] || X_UA[ 'Chrome' ] || X_UA[ 'Opera' ] ,\r
  79               'wav'  : X_UA[ 'Gecko' ] || X_UA[ 'Opera' ] || ( X_UA[ 'Windows' ] && X_UA[ 'Safari' ]  ),\r
  80               'aac'  : X_UA[ 'IE' ] || X_UA[ 'WebKit' ],\r
  81               'm4a'  : X_UA[ 'IE' ] || X_UA[ 'WebKit' ],\r
  82               'mp4'  : X_UA[ 'IE' ] || X_UA[ 'WebKit' ],\r
  83               'weba' : 2 <= X_UA[ 'Gecko' ] || 10.6 <= X_UA[ 'Opera' ] // firefox4+(Gecko2+)\r
  84                 };\r
  85                 (function( X_Audio_codecs, k ){\r
  86                         for( k in X_Audio_codecs ){\r
  87                                 //if( X_EMPTY_OBJECT[ k ] ) continue;\r
  88                                 if( X_Audio_codecs[ k ] ){\r
  89                                         console.log( k + ' ' + X_Audio_codecs[ k ] );\r
  90                                         X_Audio_codecs[ k ] = true;\r
  91                                 } else {\r
  92                                         delete X_Audio_codecs[ k ];\r
  93                                 };\r
  94                         };\r
  95                 })( X_Audio_codecs );\r
  96         };\r
  97         \r
  98         X_Audio_HTMLAudioWrapper = X_Audio_AbstractAudioBackend[ 'inherits' ](\r
  99                 'X.AV.HTML5AudioWrapper',\r
 100                 X_Class.POOL_OBJECT,\r
 101                 {\r
 102                         _playTime        : 0,\r
 103                         _closed          : true,\r
 104                         _loaded          : false,\r
 105                         _beginTime       : 0,\r
 106                         _playForDuration : 0,\r
 107                         _lastCurrentTime : 0,\r
 108                         _src             : '',\r
 109                         \r
 110                         isM4A            : false,\r
 111                         shortPlayFix     : 0,\r
 112                         \r
 113                         'Constructor' : function( target, source, option ){\r
 114                                 var raw;\r
 115                                 \r
 116                                 this.target  = target || this;\r
 117                                 this._closed = false;\r
 118                                 \r
 119                                 this.isM4A   = X_URL_getEXT( source ) === 'm4a';\r
 120                                 \r
 121                                 this.setState( option );\r
 122 \r
 123                                 if( option[ 'useVideo' ] ){\r
 124                                         this[ '_rawObject' ]  = raw = document.createElement( 'video' );\r
 125                         raw.preload           = 'none'; // auto, metadata, none\r
 126                         //raw.autoplay = false, // no-auto\r
 127                         raw.loop              = false;\r
 128                         raw.muted             = false;\r
 129                         raw.crossorigin       = option[ 'crossorigin' ] || ''; //crossorigin: "anonymous", X.URL.isSameDomain() で切り替え\r
 130                         raw.style.cssText     = 'position:absolute;bottom:0;left:-50px;width:100px;height:100px;opacity:0;';\r
 131                                         raw.controls          = false;\r
 132                                         raw.WebKitPlaysInline = true;\r
 133                                         raw.src               = source;\r
 134                                         //raw.onclick  = "alert('play');this.actualPlay();";\r
 135                                         document.body.appendChild( raw );\r
 136                                         //raw.load();\r
 137                                 } else {\r
 138                                         this[ '_rawObject' ] = X_Audio_rawAudio || new X_Audio_constructor( source );\r
 139                                         // X_Doc_create( 'audio', { src : source } )[ 'appendTo' ]( X.Doc.body );\r
 140                                         this[ '_rawObject' ].autobuffer = false;\r
 141                                         this._src = source;\r
 142                                 };\r
 143                                 \r
 144                                 this[ 'listen' ]( [\r
 145                                                 'loadstart', 'load', 'progress', 'suspend', 'abort', 'error', 'emptied', 'stalled', 'play', 'pause', 'loadedmetadata',\r
 146                                                 'loadeddata', 'waiting', 'playing', 'canplay', 'canplaythrough', 'seeking', 'seeked', 'timeupdate', 'ended',\r
 147                                                 'ratechange', 'durationchange', 'volumechange' ], this.handleEventProxy );                              \r
 148 \r
 149                                 //document.body.appendChild( this[ '_rawObject' ] );\r
 150                                 this[ '_rawObject' ].autoplay = false;\r
 151 \r
 152                                 if( X_Audio_rawAudio === this[ '_rawObject' ] ){\r
 153                                         if( X_Audio_HTMLAudioWrapper_badOperaAndroid ){\r
 154                                                 X_Audio_HTMLAudioWrapper_badOperaAndroid && alert( 12 );\r
 155                                                 X_EventDispatcher_toggleAllEvents( this, false );\r
 156                                                 this[ '_rawObject' ] = new X_Audio_constructor( X_URL_toAbsolutePath( source ) );\r
 157                                                 //X_EventDispatcher_toggleAllEvents( this, true );\r
 158                                         } else {\r
 159                                                 X_Audio_rawAudio.src = source;\r
 160                                         };\r
 161 \r
 162                                         //this[ '_rawObject' ] = new X_Audio_constructor( X_URL_toAbsolutePath( source ) );\r
 163                                         /*!X_Audio_Sprite_needTouchFirst && */ X_Audio_rawAudio.load(); // 要る?\r
 164                                         X_Audio_rawAudio = null;\r
 165                                 };\r
 166 \r
 167                                 this[ 'listenOnce' ]( X_EVENT_KILL_INSTANCE );\r
 168                         },\r
 169                         \r
 170                         handleEvent : function( e ){\r
 171                                 switch( e.type ){\r
 172 \r
 173                                         case X_EVENT_KILL_INSTANCE :\r
 174                                                 // 【javascript】モバイル向けブラウザでも音を鳴らしたい【WebAudio】\r
 175                                                 // http://ingaouhou.com/archives/3633\r
 176                                                 // ・使い終わったインスタンスはload()しておくとやや安定\r
 177                                                 this.playing && this.actualPause();\r
 178                                                 delete this._closed;\r
 179                                                 delete this._loaded;\r
 180                                                 \r
 181                                                 this[ '_rawObject' ].src = '';\r
 182                                                 this[ '_rawObject' ].load();\r
 183                                                 \r
 184                                                 // removeChild for video\r
 185                                                 break;\r
 186                                 };\r
 187                         },\r
 188                         /*\r
 189                          * http://uguisu.skr.jp/html/table3.html\r
 190                          */\r
 191                         handleEventProxy : function( e ){\r
 192                                 var type, loaded, end, now;\r
 193                                 \r
 194                                 X_Audio_HTMLAudioWrapper_badOperaAndroid && alert( e.type );\r
 195                                 \r
 196                                 // global に公開\r
 197                                 //window[ '__rawAudio' ] = this[ '_rawObject' ];\r
 198                                 \r
 199                                 /* X_Audio_HTMLAudioWrapper_ieMobile9Fix && */ e.type !== 'timeupdate' && console.log( e.type );\r
 200                                 \r
 201                                 switch( e.type ){\r
 202                                         case 'loadstart' :      //      ブラウザがコンテンツの検索を開始した場合に発生\r
 203                                                 break;\r
 204                                         case 'progress' :       //      ブラウザがコンテンツの取得を実行した場合に発生\r
 205                                                 console.log( e.loaded + ' ' + e.total * 100 + '%' );\r
 206                                                 // iem9 で常に0 this[ '_rawObject' ].networkState;\r
 207                                                 // opera Android 12 で　buffered.end() へのアクセスはエラー　try catch も無効、iem9 は常に end(0) = 0\r
 208                                                 //console.log( 'buffered.end ' + this[ '_rawObject' ].buffered && this[ '_rawObject' ].buffered.end(0) ); \r
 209                                                 break;\r
 210                                         \r
 211                                         case 'canplay' :        //      今すぐに再生を再開できるが、バッファリングが不十分でコンテンツを最後まで表示できないと予測している場合に発生\r
 212                                                 if( X_Audio_HTMLAudioWrapper_durationFix && this._playForDuration === 0 && !X_UA[ 'AndroidChromeBrowser' ] ){\r
 213                                                         console.log( '[duration fix]開始 - ' + this[ '_rawObject' ].duration );\r
 214                                                         this._playForDuration = 1;\r
 215                                                         this[ '_rawObject' ].play();\r
 216                                                         this[ '_rawObject' ].currentTime = this._beginTime / 1000; // 必要！\r
 217                                                         return;\r
 218                                                 };\r
 219                                         case 'loadedmetadata' : //      ブラウザがメディアリソースの長さと寸法を判定した場合に発生\r
 220                                         case 'loadeddata' :     //      コンテンツの表示を現在の再生位置で初めて行えるようになった場合に発生\r
 221                                         case 'canplaythrough' : //      今すぐに再生を開始してもバッファリングで停止することなく最後まで表示できると予測している場合に発生\r
 222                                                 X_Audio_HTMLAudioWrapper_durationFix && console.log( '[duration fix]' + e.type + ' ' + this._playForDuration );\r
 223                                                 if( X_Audio_HTMLAudioWrapper_durationFix && this._playForDuration !== 2 ) return;\r
 224                                                 this.duration = this.duration || this[ '_rawObject' ].duration * 1000;\r
 225                                                 break;\r
 226         \r
 227                                         case 'stalled' :        //      ブラウザがコンテンツの取得を試みたが、データがまだ用意されていない場合に発生\r
 228                                                 // Android2 で ready 扱い?\r
 229                                         case 'suspend' :        //      ブラウザが意図的にコンテンツの取得を現在行っていない場合に発生（ダウンロードは未完了）\r
 230                                                 // iOS で ready 扱い\r
 231                                         case 'emptied' :        //      読み込み中に致命的なエラーが発生したか、実行状態ででload()メソッドが実行された場合に発生\r
 232                                         case 'abort' :          //      ダウンロードの完了前にコンテンツの取得を停止した場合に発生（この停止はエラーによるものではない）\r
 233                                                 break;\r
 234                                                 \r
 235                                         case 'error' :          //      コンテンツの取得実行中にエラーが発生した場合に発生\r
 236                                                 type = X_EVENT_ERROR;\r
 237                                                 break;\r
 238                                         \r
 239                                         case 'playing' :        //      再生が開始された場合に発生\r
 240                                                 if( X_Audio_HTMLAudioWrapper_currentTimeFix ){\r
 241                                                         this._playTime  = X_Timer_now();\r
 242                                                 };\r
 243                                                 type = X_EVENT_MEDIA_PLAYING;\r
 244                                         case 'play' :           //      再生が開始された。play()メソッドからの復帰後に発生する場合に発生\r
 245                                         case 'pause' :          //      再生が一時停止された。pauseメソッドからの復帰後に発生する場合に発生\r
 246                                         case 'seeked' :         //      シークがfalseに変化した場合に発生\r
 247                                         case 'ratechange' :     // defaultPlaybackRate属性とplaybackRate属性のどちらかが更新された場合に発生\r
 248                                         case 'volumechange' :   // volume属性とmuted属性のどちらかが変化した場合に発生\r
 249                                                 if( this._playForDuration === 1 ) return;\r
 250                                                 break;\r
 251                                                 \r
 252                                         case 'waiting' :        //      次のフレームが利用不可のため再生を停止したが、そのフレームがやがて利用可能になると想定している場合に発生\r
 253                                                 type = X_EVENT_MEDIA_WAITING;\r
 254                                         case 'seeking' :        //      シークがtrueに変化し、イベントを発生させるのに十分な時間がシーク操作にかかっている場合に発生\r
 255                                                 type = type || X_EVENT_MEDIA_SEEKING;\r
 256                                                 if( this._playForDuration === 1 ) return;\r
 257                                                 break;\r
 258                                                 \r
 259                                         case 'ended' :\r
 260                                                 if( !this._closed && this.autoLoop ){\r
 261                                                         if( !( this.target[ 'dispatch' ]( X_EVENT_MEDIA_BEFORE_LOOP ) & X_CALLBACK_PREVENT_DEFAULT ) ){\r
 262                                                                 this.looped = true;\r
 263                                                                 this.target[ 'dispatch' ]( X_EVENT_MEDIA_LOOPED );\r
 264                                                                 this.actualPlay( X_Audio_HTMLAudioWrapper_needPlayOnended );\r
 265                                                         };\r
 266                                                         // Android4.1.1 ended 後に曲の再生が継続できない\r
 267                                                         return;\r
 268                                                 };\r
 269                                                 type = X_EVENT_MEDIA_ENDED;\r
 270                                                 this.seekTime = 0;\r
 271                                                 delete this.playing;\r
 272                                                 break;\r
 273         \r
 274                                         // TODO firefox で 短い音声でtimeupdate, ended が発火しない\r
 275                                         case 'timeupdate' :     //      通常の再生が行われ現在の再生位置の変化が起こった場合に発生\r
 276                                                 if( X_Audio_HTMLAudioWrapper_ieMobile9Fix ){\r
 277                                                         if( this._playForDuration === 1 ){\r
 278                                                                 console.log( 'tu ' + this[ '_rawObject' ].duration );\r
 279                                                                 if( !this.duration && X_Type_isFinite( this[ '_rawObject' ].duration ) && 0 < this[ '_rawObject' ].duration ){\r
 280                                                                         this.duration = this.duration || this[ '_rawObject' ].duration * 1000;\r
 281                                                                         this._playForDuration = 2;\r
 282                                                         loaded = true;\r
 283                                                         break;\r
 284                                                                 } else {\r
 285                                                                         this[ '_rawObject' ].currentTime = this._beginTime / 1000; // 必要！\r
 286                                                                         return;\r
 287                                                                 };\r
 288                                                         } else\r
 289                                                         if( this[ '_rawObject' ].currentTime === this._lastCurrentTime ){\r
 290                                                                 this.target[ 'dispatch' ]( X_EVENT_MEDIA_WAITING );\r
 291                                                                 return;\r
 292                                                         };\r
 293                                                         this._lastCurrentTime = this[ '_rawObject' ].currentTime;\r
 294                                                 };\r
 295                                                 this.duration = this.duration || this[ '_rawObject' ].duration * 1000;\r
 296 \r
 297                                     if( this.playing ){\r
 298                                         end = X_AudioWrapper_getEndTime( this ) + this.shortPlayFix;\r
 299                                         now = this.getActualCurrentTime();\r
 300                                         //console.log( now + ' / ' + end );\r
 301                                         if( 0 + end <= 0 + now ){ // 0+ なぜか iem9 で必要,,,\r
 302                                                 if( this.autoLoop ){\r
 303                                                         if( !( this.target[ 'dispatch' ]( X_EVENT_MEDIA_BEFORE_LOOP ) & X_CALLBACK_PREVENT_DEFAULT ) ){\r
 304                                                                 this.looped = true;\r
 305                                                                 this.target[ 'dispatch' ]( X_EVENT_MEDIA_LOOPED );\r
 306                                                                 this.actualPlay();\r
 307                                                         };\r
 308                                                 } else {\r
 309                                                         this.actualPause();\r
 310                                                         this.target[ 'dispatch' ]( X_EVENT_MEDIA_ENDED );\r
 311                                                 };\r
 312                                                 return;\r
 313                                         };\r
 314                                     } else {\r
 315                                         return;\r
 316                                     };\r
 317                                     type = X_EVENT_MEDIA_PLAYING;\r
 318                                                 break;\r
 319                                                 \r
 320                                         case 'durationchange' : // duration属性が更新された場合に発生\r
 321                                                 \r
 322                                                 if( !X_Audio_HTMLAudioWrapper_durationFix ){\r
 323                                                         this.duration = this[ '_rawObject' ].duration * 1000;\r
 324                                                         console.log( 'duration : ' + this.duration );\r
 325                                                 } else\r
 326                                                 // Desktop Opera では Infinity, IEM9 では NaN, Android標準ブラウザ(Chrome)では 0\r
 327                                                 if( !this.duration && X_Type_isFinite( this[ '_rawObject' ].duration ) && 0 < this[ '_rawObject' ].duration ){\r
 328                                                         \r
 329                                                         //console.log( this[ '_rawObject' ].duration );\r
 330                                                         \r
 331                                                         this.duration = this[ '_rawObject' ].duration * 1000;\r
 332                                                         \r
 333                                                         if( this._playForDuration === 0 ) this._playForDuration = 2;\r
 334                                                         \r
 335                                                         if( this._playForDuration === 1 ){\r
 336                                                                 this._playForDuration = 2;\r
 337                                                                 \r
 338                                                                 console.log( '[duration fix] Loaded ' + this._loaded );\r
 339                                                                 \r
 340                                                                 if( this._loaded ){\r
 341                                                                         this[ '_rawObject' ].currentTime = this._beginTime / 1000;\r
 342                                                                         console.log( '[duration fix] 設定 ' + this._beginTime );\r
 343                                                                         return;\r
 344                                                                 };\r
 345 \r
 346                                                 loaded = true;\r
 347                                                 console.log( '[duration fix] 完了' + this.duration );\r
 348                                                 \r
 349                                                 if( this.autoplay ){\r
 350                                                                         this[ '_rawObject' ].currentTime = this._beginTime / 1000;      \r
 351                                                 } else\r
 352                                                 if( X_UA[ 'Opera' ] ){\r
 353                                                         // Opera12.17 WinXP で勝手に再生される不具合\r
 354                                                         // これで一応再生は止まる、、、\r
 355                                                                         this[ '_rawObject' ].src = '';\r
 356                                                                         //this[ '_rawObject' ].load();                                          \r
 357                                                 };\r
 358                                                         };\r
 359                                                         \r
 360                                                 };\r
 361                                                 break;\r
 362                                         \r
 363                                 };\r
 364                                 \r
 365                                 \r
 366                                 if( !this._loaded && ( loaded || e.type === X_Audio_HTMLAudio_playTrigger || e.type === 'loadeddata' ) ){\r
 367                                         this.autoplay && X_Timer_once( 16, this, this.play );\r
 368                                         this._loaded = true;\r
 369                                         this.target[ 'asyncDispatch' ]( X_EVENT_READY );\r
 370                                         console.log( '> Audio Loaded!! ' + e.type + ' d:' + ( this.duration | 0 ) );\r
 371                                         return;\r
 372                                 };\r
 373                                 \r
 374                                 if( !loaded && type ){\r
 375                                         // console.log( '(2) ' + e.type + ' d:' + ( this.duration | 0 ) );\r
 376                                         this.target[ 'dispatch' ]( type );\r
 377                                         type === X_EVENT_ERROR && this[ 'kill' ]();\r
 378                                 };\r
 379                         },\r
 380 \r
 381                         actualPlay : function( forcePlay ){\r
 382                                 var begin, end;\r
 383                                 \r
 384                                 // もし kill 後に autoplayTimer で呼ばれても、_closed==true なので平気\r
 385                                 if( this._closed ) return;\r
 386                                 if( !this._loaded && !X_Audio_HTMLAudioWrapper_ieMobile9Fix /* && !X_Audio_Sprite_inTouchAction */ ){\r
 387                         this.autoplay = true;\r
 388                         return;\r
 389                                 };\r
 390                                 \r
 391                                 if( X_Audio_HTMLAudioWrapper_ieMobile9Fix && this._playForDuration === 0 ){\r
 392                                         console.log( 'DurationFix開始 - ' + this[ '_rawObject' ].duration );\r
 393                                         this._playForDuration = 1;\r
 394                                 };\r
 395 \r
 396                                 end   = X_AudioWrapper_getEndTime( this );\r
 397                                 begin = this._beginTime = X_AudioWrapper_getStartTime( this, end, true );\r
 398 \r
 399                     if( X_Audio_HTMLAudioWrapper_shortPlayFix && this.isM4A ){\r
 400                         this.shortPlayFix = ( 1000 < end - begin ) ? 200 : 400;\r
 401                         if( this.duration < end + this.shortPlayFix ){\r
 402                                 this.shortPlayFix = this.duration - end;\r
 403                         };\r
 404                     };\r
 405 \r
 406                                 if( !this[ '_rawObject' ].src ){\r
 407                                         this._beginTime = begin;\r
 408                                         this[ '_rawObject' ].src = this._src;\r
 409                                         delete this._playForDuration;\r
 410                                 };\r
 411 \r
 412                             if( !this.playing || forcePlay ){\r
 413                                     if( X_UA[ 'Chrome' ] ){ // [CHROME][FIX] volume TODO どの version で 修正される？\r
 414                                         // [!] delay\r
 415                                         X_Timer_once( 0, this, this._fixForChrome );\r
 416                                         this[ '_rawObject' ].volume = 0;\r
 417                                     } else {\r
 418                                         this[ '_rawObject' ].volume = X_Audio_HTMLAudioWrapper_ieMobile9Fix ? 1 : this.gain;\r
 419                                     };\r
 420                                 this[ '_rawObject' ].play();\r
 421                                 this.playing = true;\r
 422                             } else\r
 423                             if( X_UA[ 'Gecko' ] ){\r
 424                                 // Gecko PC + Android でseek時に再生がしばしば止まる問題の修正\r
 425                                 this[ '_rawObject' ].play();\r
 426                             };\r
 427                             \r
 428                                 //http://himaxoff.blog111.fc2.com/blog-entry-97.html\r
 429                                 //Firefox3.6では一度も play() していない状態で currentTime = 0 を実行するとエラーになる。\r
 430                                 //また、GoogleChrome7 では currentTime = 0 直後に play() すると、pause()した位置前後の音が混ざることがある。(少なくとも自分の環境では)\r
 431                                 this[ '_rawObject' ].currentTime = this._lastCurrentTime = begin / 1000 | 0;\r
 432 \r
 433                             console.log( '[HTMLAudio] play ' + begin + ' -> ' + end );\r
 434                     \r
 435                     if( X_Audio_HTMLAudioWrapper_currentTimeFix ){\r
 436                         this._beginTime = begin;\r
 437                         this._playTime  = X_Timer_now();\r
 438                     };\r
 439 \r
 440                         },\r
 441                                 \r
 442                                 // [CHROME][FIX] volume\r
 443                                 _fixForChrome : X_UA[ 'Chrome' ] && function(){\r
 444                                         !this._closed && ( this[ '_rawObject' ].volume = this.gain );\r
 445                                 },\r
 446                         \r
 447                         actualPause : function(){\r
 448                                 if( !this.playing ) return;\r
 449                                 \r
 450                                 console.log( '[HTMLAudio] pause' );\r
 451                                 \r
 452                                 this.seekTime = this.getActualCurrentTime();\r
 453 \r
 454                                 delete this._playTime;\r
 455 \r
 456                         !this[ '_rawObject' ].error && this[ '_rawObject' ].pause();\r
 457                         \r
 458                         if( X_Audio_HTMLAudioWrapper_durationFix && X_UA[ 'Opera' ] ){\r
 459                                 this[ '_rawObject' ].src = '';\r
 460                                 // load();\r
 461                         };\r
 462                         delete this.playing;\r
 463                         },\r
 464                         \r
 465                         getActualCurrentTime : function(){\r
 466                                 return ( X_Audio_HTMLAudioWrapper_currentTimeFix ?\r
 467                                                                 X_Timer_now() - this._playTime + this._beginTime :\r
 468                                                                 this[ '_rawObject' ].currentTime * 1000 | 0 );\r
 469                         },\r
 470                 /*\r
 471                 http://www.w3schools.com/tags/av_prop_error.asp\r
 472                 1 = MEDIA_ERR_ABORTED - fetching process aborted by user\r
 473             2 = MEDIA_ERR_NETWORK - error occurred when downloading\r
 474             3 = MEDIA_ERR_DECODE - error occurred when decoding\r
 475             4 = MEDIA_ERR_SRC_NOT_SUPPORTED - audio/video not supported\r
 476             */                  \r
 477                         getActualError : function(){\r
 478                                 return this[ '_rawObject' ].error || 0;\r
 479                         },\r
 480                         \r
 481                         afterUpdateState : function( result ){\r
 482                                 if( result & 3 ){ // seek\r
 483                         this.actualPlay();\r
 484                                 } else\r
 485                                 if( result & 4 ){\r
 486                        this[ '_rawObject' ].volume = X_Audio_HTMLAudioWrapper_ieMobile9Fix ? 1 : this.gain;\r
 487                                 };                              \r
 488                         }\r
 489         \r
 490                 }\r
 491         );\r
 492         \r
 493         X_Audio_BACKENDS.push(\r
 494                 {\r
 495                         backendName : 'HTML Audio',\r
 496                         \r
 497                         canPlay : X_Audio_codecs,\r
 498                 /*\r
 499                  * HTML5 の audio 要素と video 要素でサポートされているメディアフォーマット\r
 500                  * https://developer.mozilla.org/ja/docs/Web/HTML/Supported_media_formats\r
 501                  * \r
 502                  * 主要ブラウザのHTML5 audioタグで使えるファイル形式の再生対応状況を調べてみた\r
 503                  * http://sothis.blog.so-net.ne.jp/2010-10-27\r
 504                  * ダメ元で仕様に含まれていない SHOUTcast もテストしてみました。\r
 505                  * \r
 506                  * IE9 の HTML5 Audio について\r
 507                  * http://kentablog.cluscore.com/2011/05/ie9-html5-audio.html\r
 508                  * 1.Audioオブジェクトを作ることができないので、Audioタグを使う\r
 509                  * 2.クロスドメインアクセスには、「clientaccesspolicy.xml」か「crossdomain.xml」が必要\r
 510                  * 3.wav が不可\r
 511                  * \r
 512                  * IE9でHTML5 autio タグが無効になる\r
 513                  * http://bbs.wankuma.com/index.cgi?mode=al2&namber=64886&KLOG=109\r
 514                  *  IEのバージョン9.0.8112.16421では、Audioオブジェクトのnewも対応してました。\r
 515                  *  createElement等で動的生成すると、よろしくない\r
 516                  * \r
 517                  * media-can-play-wav-audio.html\r
 518                  * https://github.com/adobe/webkit/blob/master/LayoutTests/media/media-can-play-wav-audio.html\r
 519                  * testExpected("audio.canPlayType('audio/wav; codecs=1')", "probably");\r
 520                  * \r
 521                  * HTML5 audioタグ ブラウザ間の違い\r
 522                  * http://wiki.bit-hive.com/tomizoo/pg/HTML5%20audio%A5%BF%A5%B0%20%A5%D6%A5%E9%A5%A6%A5%B6%B4%D6%A4%CE%B0%E3%A4%A4\r
 523                  *  - volume, muted iPhone(iOS4-6)、Android(2.3.6)では動作せず。\r
 524                  *  - FireFox3.6, Android 2.3.6については、src変更後、load()を呼び出さないと切り替わらなかった。iPhoneはload()が不要。\r
 525                  */     \r
 526                         detect : function( proxy, source, ext ){\r
 527                                 proxy[ 'asyncDispatch' ]( { type : X_EVENT_COMPLETE, canPlay : X_Audio_codecs[ ext ] } );\r
 528                         },\r
 529                         \r
 530                         klass : X_Audio_HTMLAudioWrapper\r
 531                         \r
 532                 } );\r
 533 \r
 534 /*\r
 535  * \r
 536  * howler.js\r
 537  *     codecs = {\r
 538       mp3: !!audioTest.canPlayType('audio/mpeg;').replace(/^no$/, ''),\r
 539       opus: !!audioTest.canPlayType('audio/ogg; codecs="opus"').replace(/^no$/, ''),\r
 540       ogg: !!audioTest.canPlayType('audio/ogg; codecs="vorbis"').replace(/^no$/, ''),\r
 541       wav: !!audioTest.canPlayType('audio/wav; codecs="1"').replace(/^no$/, ''),\r
 542       aac: !!audioTest.canPlayType('audio/aac;').replace(/^no$/, ''),\r
 543       m4a: !!(audioTest.canPlayType('audio/x-m4a;') || audioTest.canPlayType('audio/m4a;') || audioTest.canPlayType('audio/aac;')).replace(/^no$/, ''),\r
 544       mp4: !!(audioTest.canPlayType('audio/x-mp4;') || audioTest.canPlayType('audio/mp4;') || audioTest.canPlayType('audio/aac;')).replace(/^no$/, ''),\r
 545       weba: !!audioTest.canPlayType('audio/webm; codecs="vorbis"').replace(/^no$/, '')\r
 546     };\r
 547  */\r
 548         \r
 549 };\r
 550 \r
 551 \r
 552 \r
 553 \r
 554 \r