0.6.x/js/07_audio/03_XSilverlightAudio.js

   1 \r
   2 /*\r
   3  * original : uupaa-js SilverlightAudio.js\r
   4  * https://code.google.com/p/uupaa-js/source/browse/trunk/0.8/src/Audio/SilverlightAudio.js?r=568\r
   5  *\r
   6  * Silverlight 4 → 5における不具合の状況\r
   7  *　http://www.slideshare.net/wakabayashiy/silverlight-4-5 \r
   8  * \r
   9  * IE10以降でSilverlightでF5押したらフリーズする不具合と対処\r
  10  * http://katsuyuzu.hatenablog.jp/entry/2014/01/11/003550\r
  11  * \r
  12  * SilverlLight5 ie6&7(ietester,winxp), ie8(winxp) で動作確認。firefox32 では動作しない。(4以下の方がよい？)\r
  13  */\r
  14 \r
  15 var X_Audio_SLAudio, X_Audio_SLAudioWrapper,\r
  16         X_Audio_SLAudio_uid = 0,\r
  17         X_Audio_SLAudio_LIVE_LIST = [],\r
  18         X_Audio_SLAudio_POOL_LIST = [];\r
  19 \r
  20 if( X.Pulgin.SilverlightEnabled ){\r
  21         \r
  22         function getSLAudioWrapper( proxy ){\r
  23                 var i = X_Audio_SLAudio_LIVE_LIST.length;\r
  24                 for( ; i; ){\r
  25                         if( X_Audio_SLAudio_LIVE_LIST[ --i ].proxy === proxy ) return X_Audio_SLAudio_LIVE_LIST[ i ];\r
  26                 };\r
  27         };\r
  28         \r
  29         X_Audio_SLAudio = \r
  30                 {\r
  31                         backendName : 'Silverlight Audio',\r
  32 \r
  33                         detect : function( proxy, source, ext ){\r
  34                                 var ok = ext === 'mp3' || ext === 'wma';\r
  35                                 proxy.asyncDispatch( ok ? 'support' : 'nosupport' );                            \r
  36                         },\r
  37                         \r
  38                         register : function( proxy, source, option ){\r
  39                                 X_Audio_SLAudio_LIVE_LIST.push( new X_Audio_SLAudioWrapper( proxy, source, option ) );\r
  40                         },\r
  41                         \r
  42                         close : function( proxy ){\r
  43                                 return getSLAudioWrapper( proxy ).close();\r
  44                         },\r
  45                         \r
  46                         play : function( proxy ){\r
  47                                 return getSLAudioWrapper( proxy ).play();\r
  48                         },\r
  49                         \r
  50                         pause : function( proxy ){\r
  51                                 return getSLAudioWrapper( proxy ).pause();\r
  52                         },\r
  53         \r
  54                         state : function( proxy, obj ){\r
  55                                 return getSLAudioWrapper( proxy ).state( obj );\r
  56                         }\r
  57                 };\r
  58         \r
  59         X_Audio_BACKENDS.push( X_Audio_SLAudio );\r
  60         \r
  61         function slerror(){\r
  62                 alert( 'slerror' );\r
  63         };\r
  64         \r
  65         X_Audio_SLAudioWrapper = X.EventDispatcher.inherits(\r
  66                 'X.AV.SilverlightAudioWrapper',\r
  67                 X.Class.POOL_OBJECT,\r
  68                 {\r
  69                         _isSilverlight  : true, // for X.EventDispatcher.listen\r
  70                 proxy           : null,\r
  71                 \r
  72                         startTime       : 0,\r
  73                         endTime         : 0,\r
  74                         loopStartTime   : 0,\r
  75                         seekTime        : 0,\r
  76                         duration        : 0,\r
  77                         \r
  78                         playing         : false,\r
  79                         error           : 0,                    \r
  80                         loop            : false,\r
  81                         volume          : 0.5,\r
  82                 \r
  83                 _onload         : '',\r
  84                 _callback       : null,                 \r
  85                 xnodeObject     : null,\r
  86                         _source         : '',\r
  87                         _ended          : true,\r
  88                         _paused         : false,\r
  89                         _lastUserAction : '',\r
  90                         _lastState      : '',\r
  91                         _interval       : 0, // setInterval timer id\r
  92                         \r
  93                         Constructor : function( proxy, source, option ){\r
  94                                 \r
  95                                 if( !X_Audio_SLAudio_uid ){\r
  96                                         // source\r
  97                                         //X.X_Node_systemNode.create( 'script', { type : 'text/xaml', id : 'silverlightaudio' } )\r
  98                                         //      .text( '<Canvas xmlns="http://schemas.microsoft.com/client/2007" ' +\r
  99                                         // 'xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"></Canvas>');\r
 100                                         \r
 101                                         // html に以下を書いた                     \r
 102                                         // <script id="silverlightaudio" type="text/xaml"><Canvas xmlns="http://schemas.microsoft.com/client/2007" xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"></Canvas></script>\r
 103                                 };\r
 104                                 /*\r
 105                                  *　［Silverlight 2］JavaScriptコードからSilverlightのオブジェクトを利用するには？［C#、VB］\r
 106                                  * http://www.atmarkit.co.jp/fdotnet/dotnettips/902slobjcallfromjs/slobjcallfromjs.html\r
 107                                  * このページのサンプルは sl5+firefox32 環境で動いている。xaml を js から利用する形ではなく、.xap を sl4 以下で作るのがよさそう.\r
 108                                  */\r
 109                                 \r
 110                                 // TODO embed\r
 111                                 this.proxy       = proxy;\r
 112                                 this._source     = source;\r
 113                         this._onload     = 'XAudioSilverlightOnLoad' + ( ++X_Audio_SLAudio_uid );\r
 114                                 this._callback   = window[ this._onload ] = X_Callback_create( this, this.onSLReady, [ option.autoplay ] );\r
 115                         this.xnodeObject = X_Node_body\r
 116                                 .create( 'object', {\r
 117                                                 type   : 'application/x-silverlight-2',\r
 118                                                 data   : 'data:application/x-silverlight-2,',\r
 119                                                 width  : 1,\r
 120                                                 height : 1\r
 121                                         })\r
 122                                         .html(\r
 123                                             '<param name="background" value="#00000000">' +      // transparent\r
 124                                             '<param name="windowless" value="true">' +\r
 125                                             '<param name="source" value="#silverlightaudio">' +  // XAML ID\r
 126                                             '<param name="onload" value="' + this._onload + '">' // + // bond to global\r
 127                                             //'<param value="2.0.31005.0" name="minRuntimeVersion">' +\r
 128                                             //'<param value="true" name="autoUpgrade">' +\r
 129                                             //'<param name="onerror" value="slerror">' // bond to global\r
 130                                         );\r
 131                                 X_AudioWrapper_updateStates( this, option );\r
 132         \r
 133                                 this.listenOnce( X.Event.KILL_INSTANCE );\r
 134                         },\r
 135                         \r
 136                         onSLReady : function( sender, autoplay ){\r
 137                                 if( !this._onload ) return;\r
 138                                 \r
 139                                 window[ this._onload ] = null;\r
 140                                 delete this._onload;\r
 141                                 X_Callback_correct( this._callback );\r
 142                                 delete this._callback;\r
 143 \r
 144                                 sender.children.add(\r
 145                                         sender.GetHost().\r
 146                                         content.\r
 147                                         CreateFromXaml(\r
 148                                         '<Canvas xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml">' +\r
 149                                                 '<MediaElement x:Name="media" Source="' + this._source + '" Volume="' + this.volume + '" AutoPlay="false" />' +\r
 150                                         '</Canvas>'));\r
 151                 \r
 152                                 this._rawObject = sender.findName('media'); // x:Name='media'\r
 153                                 \r
 154                                 this.listen( [ 'MediaFailed', 'MediaOpened', 'MediaEnded', 'CurrentStateChanged' ] );\r
 155                                 \r
 156                                 autoplay && X.Timer.once( 100, this, this.play );\r
 157                         },\r
 158                         \r
 159                         handleEvent : function( e ){\r
 160                                 var lastState, currentState;\r
 161                                 \r
 162                                 switch( e.type ){\r
 163                                         \r
 164                                         case 'MediaFailed' :\r
 165                                                 this.error   = 4;\r
 166                                                 this.playing = false;\r
 167                                                 this._ended  = true;\r
 168                                                 this._paused = false;\r
 169                                                 this.proxy.dispatch( 'error' ); // open failed\r
 170                                                 break;\r
 171 \r
 172                                         case 'MediaOpened' :\r
 173                                                 // http://msdn.microsoft.com/ja-jp/library/bb979710(VS.95).aspx\r
 174                                                 this.duration = this._rawObject.NaturalDuration.Seconds * 1000;\r
 175                                                 this.endTime  = this.endTime || this.duration;\r
 176                                                 // TODO 'canplaythrough'\r
 177                                                 this.proxy.asyncDispatch( 'loadstart' );\r
 178                                 this.proxy.asyncDispatch( 'loadedmetadata' );\r
 179                                 this.proxy.asyncDispatch( 'loadeddata' );\r
 180                                 this.proxy.asyncDispatch( 'canplay' );\r
 181                                 this.proxy.asyncDispatch( 'canplaythrough' );\r
 182                                                 break;\r
 183 \r
 184                                         case 'MediaEnded' :                             \r
 185                                                 this.loop && this.playing && this.play();\r
 186                                                 break;\r
 187 \r
 188                                         case 'CurrentStateChanged' :\r
 189                                                 lastState        = this._lastState,\r
 190                                                 currentState = this._rawObject.CurrentState;\r
 191                                 \r
 192                                                 // ignore consecutive events or 'Closed' == 'Error'\r
 193                                                 if( lastState === currentState\r
 194                                                         || ( (lastState === 'Closed' || lastState === 'Error') && ( currentState === 'Closed' || currentState === 'Error') ) ){\r
 195                                                         return;\r
 196                                                 };\r
 197                                                 this._lastState = currentState; // update last state\r
 198                                 \r
 199                                                 switch( currentState ){\r
 200                                                         case 'Buffering' :\r
 201                                                         case 'Opening' :\r
 202                                                                 switch( this._lastUserAction ){\r
 203                                                                         case 'play' :\r
 204                                                                                 this.proxy.dispatch( 'waiting' );\r
 205                                                                                 break;\r
 206                                                                         case 'seek' :\r
 207                                                                                 this.proxy.dispatch( 'seeking' );\r
 208                                                                                 break;\r
 209                                                                         case 'pause' :\r
 210                                                                                 break;\r
 211                                                                 };\r
 212                                                                 break;\r
 213 \r
 214                                                         // media.play(none supported file) -> 'Error'\r
 215                                                         // media.play(file not found)     -> 'Closed'\r
 216                                                         // media.load -> 'Error'\r
 217                                                         case 'Error':\r
 218                                                         case 'Closed':\r
 219                                                                 this.error   = 4;\r
 220                                                                 this.playing = false;\r
 221                                                                 this._ended  = true;\r
 222                                                                 this._paused = false;\r
 223                                                                 this.proxy.dispatch( 'error' );\r
 224                                                                 break;\r
 225 \r
 226                                                         // userAction.pause()              -> MediaState('Paused') -> x\r
 227                                                         // userAction.stop()                    -> MediaState('Paused') -> x\r
 228                                                         // userAction.play() + file end -> MediaState('Paused') -> uueventfire('ended')\r
 229                                                         case 'Paused':\r
 230                                                                 this.playing = false;\r
 231                                                                 \r
 232                                                                 switch( this._lastUserAction ){\r
 233                                                                         case 'play': // play() -> file end -> event('ended')\r
 234                                                                         case 'seek':\r
 235                                                                                 this._ended  = true;\r
 236                                                                                 this._paused = false;\r
 237                                                                                 this.proxy.dispatch( 'ended' );\r
 238                                                                                 this._currentTime( this.startTime );\r
 239                                                                                 break;\r
 240                                                                         case 'pause':\r
 241                                                                                 this._ended  = false;\r
 242                                                                                 this._paused = true;\r
 243                                                                                 break;\r
 244                                                                         case 'stop':\r
 245                                                                                 this._ended  = true;\r
 246                                                                                 this._paused = false;\r
 247                                                                 };\r
 248                                                                 break;\r
 249 \r
 250                                                         // media.play -> 'Playing'\r
 251                                                         case 'Playing':\r
 252                                                                 this.error   = 0;\r
 253                                                                 this.playing = true;\r
 254                                                                 this._ended  = false;\r
 255                                                                 this._paused = false;\r
 256                                                                 this.proxy.dispatch( 'playing' );\r
 257                                                                 break;\r
 258 \r
 259                                                         // stop()\r
 260                                                         case 'Stopped':\r
 261                                                                 this.playing = false;\r
 262                                                                 this._ended  = true;\r
 263                                                                 this._paused = false;\r
 264                                                                 this._currentTime( this.startTime );\r
 265                                                                 break;\r
 266                                                 };\r
 267                                                 break;\r
 268 \r
 269                                         case X.Event.KILL_INSTANCE :\r
 270                                                 if( this._onload ){\r
 271                                                         // window への delete に ie5 は対応しないが、そもそも ie5 は Silverlight に非対応\r
 272                                                         delete window[ this._onload ];\r
 273                                                         delete this._onload;\r
 274                                                         X_Callback_correct( this._callback );\r
 275                                                 };\r
 276                                                 this.xnodeObject.destroy();\r
 277                                                 break;\r
 278                                 };\r
 279                         },\r
 280                         \r
 281                         close : function(){\r
 282                                 this.playing && this.pause();\r
 283                                 this.proxy.dispatch( 'ended' );\r
 284                                 this.kill();\r
 285                         },\r
 286                         \r
 287                         // SilverlightAudio.play\r
 288                         play : function( seekTime ){\r
 289                                 var begin, halfway;\r
 290                                 \r
 291                                 // もし kill 後に autoplayTimer で呼ばれても、_closed==true なので平気\r
 292                                 if( this.error ) return;\r
 293 \r
 294                                 begin = ( seekTime || seekTime === 0 ) ? seekTime : this.playing ? this.loopStartTime : this.startTime;\r
 295                                 this._lastUserAction = this.playing ? 'seek' : 'play';\r
 296                                 \r
 297                             this._currentTime( begin );\r
 298                             this._rawObject.Volume = this.volume;\r
 299                             \r
 300                             if( !this.playing ){\r
 301                                     this._rawObject.play();\r
 302                             this.proxy.dispatch( 'play' );\r
 303                             \r
 304                             this.playing = true;\r
 305                             };\r
 306                     \r
 307                     halfway = this.endTime < this.duration;\r
 308                     this._timerID && X.Timer.remove( this._timerID );\r
 309                     \r
 310                 if( halfway ){\r
 311                                         this._timerID = X.Timer.once( this.endTime - begin, this, this._onEnded );\r
 312                 } else {\r
 313                         delete this._timerID;\r
 314                 };\r
 315                 \r
 316                                 if( !this._interval ){\r
 317                                         this._interval = X.Timer.add( 1000, 0, this, this._onInterval );\r
 318                                 };\r
 319                         },\r
 320                                 \r
 321                                 _onInterval : function(){\r
 322                                         if( !this.playing ){\r
 323                                                 delete this._interval;\r
 324                                                 return X_Callback_UN_LISTEN;\r
 325                                         };\r
 326                                         this.proxy.dispatch( 'timeupdate' );\r
 327                                 },\r
 328                                 \r
 329                                 _onEnded : function(){\r
 330                                         delete this._timerID;\r
 331                             if( this.playing ){\r
 332                                 if( this.loop ){\r
 333                                         this.play();\r
 334                                 } else {\r
 335                                         this.pause();\r
 336                                         this.dispatch( 'ended' );                               \r
 337                                 };\r
 338                             };\r
 339                                 },\r
 340                         \r
 341                         // SilverlightAudio.pause\r
 342                         pause : function(){\r
 343                                 if( !this.error ){\r
 344                                         this._lastUserAction = 'pause';\r
 345                                         this.playing = false;\r
 346                                         this._paused = true;\r
 347                                         this._ended  = false;\r
 348                                         this._rawObject.pause();\r
 349                                         this.proxy.dispatch( 'pause' );\r
 350                                 };\r
 351                         },\r
 352                         \r
 353                         // SilverlightAudio.state\r
 354                         state : function( obj ){ // @return Hash: { loop, error, paused, ended, source, duration }\r
 355                                 var result;\r
 356                                 \r
 357                                 if( obj === undefined ){\r
 358                                     return {\r
 359                                         startTime     : this.startTime,\r
 360                                         endTime       : this.endTime,\r
 361                                         loopStartTime : this.loopStartTime,\r
 362                                         currentTime   : this._rawObject.Position.Seconds * 1000,\r
 363                                         loop          : this.loop,\r
 364                                         volume        : this.volume,\r
 365                                         error         : this.error,\r
 366                                         playing       : this.playing,\r
 367                                         duration      : this.duration || 0 // this._rawObject.NaturalDuration.Seconds;\r
 368                                     };\r
 369                                 };\r
 370                         \r
 371                                 result = X_AudioWrapper_updateStates( this, obj );\r
 372                             \r
 373                                 if( result & 2 ){ // seek\r
 374                         this.play( this.seekTime );\r
 375                         delete this.seekTime;\r
 376                                 } else {\r
 377                                         if( result & 1 ){\r
 378                                                 halfway = this.endTime < this.duration;\r
 379                                                 this._timerID && X.Timer.remove( this._timerID );\r
 380                                                 \r
 381                                                 if( halfway ){\r
 382                                                         this._timerID = X.Timer.once( this.endTime - this._rawObject.Position.Seconds * 1000, this, this._onEnded );\r
 383                                                 } else {\r
 384                                                         delete this._timerID;\r
 385                                                 };\r
 386 \r
 387                                         };\r
 388                                         if( result & 4 ){\r
 389                                this._rawObject.Volume = this.volume;\r
 390                                         };\r
 391                                 };\r
 392                         },\r
 393                         \r
 394                                 // SilverlightAudio.currentTime\r
 395                                 _currentTime : function( time ){ // @param Number: time\r
 396                                         var position = this._rawObject.Position; // [!] create instance\r
 397         \r
 398                                         position.Seconds = time / 1000; // set current time\r
 399                                 \r
 400                                         this._rawObject.Position = position; // [!] reattach instance\r
 401                                 }\r
 402 \r
 403                 }\r
 404         );\r
 405         \r
 406 };\r
 407 \r
 408 \r
 409 \r