0.6.x/js/06_audio/02_XSilverlightAudio.js

   1 /*\r
   2  * original : uupaa-js SilverlightAudio.js\r
   3  * https://code.google.com/p/uupaa-js/source/browse/trunk/0.8/src/Audio/SilverlightAudio.js?r=568\r
   4  */\r
   5 \r
   6 /*\r
   7  * Silverlight 4 → 5における不具合の状況\r
   8  *　http://www.slideshare.net/wakabayashiy/silverlight-4-5 \r
   9  *\r
  10  * 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
  11  */\r
  12 var X_Audio_SLAudio, X_Audio_SLAudioWrapper,\r
  13         X_Audio_SLAudio_uid = 0,\r
  14         X_Audio_SLAudio_LIVE_LIST = [],\r
  15         X_Audio_SLAudio_POOL_LIST = [];\r
  16 \r
  17 if( X.Pulgin.SilverlightEnabled ){\r
  18         \r
  19         function getSLAudioWrapper( proxy ){\r
  20                 var i = X_Audio_SLAudio_LIVE_LIST.length;\r
  21                 for( ; i; ){\r
  22                         if( X_Audio_SLAudio_LIVE_LIST[ --i ].proxy === proxy ) return X_Audio_SLAudio_LIVE_LIST[ i ];\r
  23                 };\r
  24         };\r
  25         \r
  26         X_Audio_SLAudio = X.Class._override(\r
  27                 new X.EventDispatcher(),\r
  28                 {\r
  29                         backendName : 'Silverlight Audio',\r
  30 \r
  31                         detect : function( source, ext ){\r
  32                                 var ok = ext === 'mp3' || ext === 'wma';\r
  33                                 \r
  34                                 this.asyncDispatch( 0, ok ? 'support' : 'nosupport' );\r
  35                                 \r
  36                                 return this;\r
  37                         },\r
  38                         \r
  39                         register : function( proxy, source, option ){\r
  40                                 X_Audio_SLAudio_LIVE_LIST.push( new X_Audio_SLAudioWrapper( proxy, source, option ) );\r
  41                         },\r
  42                         \r
  43                         close : function(){\r
  44                                 return getSLAudioWrapper( this ).close();\r
  45                         },\r
  46                         \r
  47                         play : function( position ){\r
  48                                 return getSLAudioWrapper( this ).play( position );\r
  49                         },\r
  50                         \r
  51                         pause : function(){\r
  52                                 return getSLAudioWrapper( this ).pause();\r
  53                         },\r
  54                         \r
  55                         stop : function(){\r
  56                                 return getSLAudioWrapper( this ).stop();\r
  57                         },\r
  58                         \r
  59                         loop : function( v ){\r
  60                                 return getSLAudioWrapper( this ).loop( v );\r
  61                         },\r
  62         \r
  63                         state : function(){\r
  64                                 return getSLAudioWrapper( this ).state();\r
  65                         },\r
  66         \r
  67                         volume : function( v ){\r
  68                                 return getSLAudioWrapper( this ).volume( v );\r
  69                         },\r
  70         \r
  71                         startTime : function( time ){\r
  72                                 return getSLAudioWrapper( this ).startTime( time );\r
  73                         },\r
  74         \r
  75                         currentTime : function( time ){\r
  76                                 return getSLAudioWrapper( this ).currentTime( time );\r
  77                         },\r
  78         \r
  79                         isPlaying : function(){\r
  80                                 return getSLAudioWrapper( this ).isPlaying();\r
  81                         }\r
  82                 }\r
  83         );\r
  84         \r
  85         X_Audio_BACKENDS.push( X_Audio_SLAudio );\r
  86         \r
  87         function slerror(){\r
  88                 alert( 'slerror' );\r
  89         };\r
  90         \r
  91         X_Audio_SLAudioWrapper = X.EventDispatcher.inherits(\r
  92                 'X.AV.SilverlightAudioWrapper',\r
  93                 X.Class.POOL_OBJECT,\r
  94                 {\r
  95                         _isSilverlight  : true, // for X.EventDispatcher.listen\r
  96                 proxy           : null,\r
  97                 _onload         : '',\r
  98                 _callback       : null,                 \r
  99                 xnodeObject     : null,\r
 100                 \r
 101                         _loop           : false,\r
 102                         _source         : '',\r
 103                         _error          : 0,\r
 104                         _ended          : true,\r
 105                         _paused         : false,\r
 106                         _volume         : 0.5,\r
 107                         _startTime      : 0,\r
 108                         _lastUserAction : '',\r
 109                         _lastState      : '',\r
 110                         _duration       : 0,\r
 111                         _interval       : 0, // setInterval timer id\r
 112                         \r
 113                         Constructor : function( proxy, source, option ){\r
 114                                 \r
 115                                 if( !X_Audio_SLAudio_uid ){\r
 116                                         // source\r
 117                                         //X.Dom.Node._systemNode.create( 'script', { type : 'text/xaml', id : 'silverlightaudio' } )\r
 118                                         //      .text( '<Canvas xmlns="http://schemas.microsoft.com/client/2007" ' +\r
 119                                         // 'xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"></Canvas>');\r
 120                                         \r
 121                                         // html に以下を書いた                     \r
 122                                         // <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
 123                                 };\r
 124                                 /*\r
 125                                  *　［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
 126                                  * http://www.atmarkit.co.jp/fdotnet/dotnettips/902slobjcallfromjs/slobjcallfromjs.html\r
 127                                  * 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
 128                                  */\r
 129                                 this.proxy       = proxy;\r
 130                         this._onload     = 'XAudioSilverlightOnLoad';// + ( ++X_Audio_SLAudio_uid );\r
 131                                 this._callback   = window[ this._onload ] = X.Callback.create( this, this.onSLReady, [ option.autoplay ] );\r
 132                         this.xnodeObject = X.Dom.Node._body\r
 133                                 .create( 'object', {\r
 134                                                 type   : 'application/x-silverlight-2',\r
 135                                                 data   : 'data:application/x-silverlight-2,',\r
 136                                                 width  : 1,\r
 137                                                 height : 1\r
 138                                         })\r
 139                                         .html(\r
 140                                             '<param name="background" value="#00000000">' +      // transparent\r
 141                                             '<param name="windowless" value="true">' +\r
 142                                             '<param name="source" value="#silverlightaudio">' +  // XAML ID\r
 143                                             '<param name="onload" value="' + this._onload + '">'// + // bond to global\r
 144                                             //'<param value="2.0.31005.0" name="minRuntimeVersion">' +\r
 145                                             //'<param value="true" name="autoUpgrade">' +\r
 146                                             //'<param name="onerror" value="slerror">' // bond to global\r
 147                                         );\r
 148                                 \r
 149                             this._loop       = option.loop;\r
 150                             this._source     = source;\r
 151                                 if( option.volume       ) this._volume  = option.volume;\r
 152                                 if( option.startTime ) this._startTime = option.startTime;\r
 153         \r
 154                                 this.listenOnce( X.Event.KILL_INSTANCE );\r
 155                         },\r
 156                         \r
 157                         onSLReady : function( sender, autoplay ){\r
 158                                 if( !this._onload ) return;\r
 159                                 \r
 160                                 window[ this._onload ] = null;\r
 161                                 delete this._onload;\r
 162                                 this._callback.kill();\r
 163                                 delete this._callback;\r
 164 \r
 165                                 sender.children.add(\r
 166                                         sender.GetHost().\r
 167                                         content.\r
 168                                         CreateFromXaml(\r
 169                                         '<Canvas xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml">' +\r
 170                                                 '<MediaElement x:Name="media" Source="' + this._source + '" Volume="' + this._volume + '" AutoPlay="false" />' +\r
 171                                         '</Canvas>'));\r
 172                 \r
 173                                 this._rawObject = sender.findName('media'); // x:Name='media'\r
 174                                 \r
 175                                 this.listen( [ 'MediaFailed', 'MediaOpened', 'MediaEnded', 'CurrentStateChanged' ] );\r
 176                                 \r
 177                                 autoplay && X.Timer.once( 100, this, this.play );\r
 178                         },\r
 179                         \r
 180                         handleEvent : function( e ){\r
 181                                 var lastState, currentState;\r
 182                                 \r
 183                                 switch( e.type ){\r
 184                                         \r
 185                                         case 'MediaFailed' :\r
 186                                                 this._error = 4;\r
 187                                                 this._ended = true;\r
 188                                                 this._paused = false;\r
 189                                 \r
 190                                                 this.proxy.dispatch( 'error' ); // open failed\r
 191                                                 break;\r
 192                                         case 'MediaOpened' :\r
 193                                                 // http://msdn.microsoft.com/ja-jp/library/bb979710(VS.95).aspx\r
 194                                                 this._duration = this._rawObject.NaturalDuration.Seconds;\r
 195                                 \r
 196                                                 this.proxy.dispatch( 'canplay' );\r
 197                                                 break;\r
 198                                         case 'MediaEnded' :\r
 199                                                 this.currentTime(this._startTime);\r
 200                                 \r
 201                                                 if (this._loop) {\r
 202                                                         this._rawObject.play();\r
 203                                                 }\r
 204                                                 break;\r
 205                                         case 'CurrentStateChanged' :\r
 206                                                 lastState       = this._lastState,\r
 207                                                 currentState = this._rawObject.CurrentState;\r
 208                                 \r
 209                                                 // ignore consecutive events or 'Closed' == 'Error'\r
 210                                                 if( lastState === currentState\r
 211                                                         || ( (lastState === 'Closed' || lastState === 'Error') && ( currentState === 'Closed' || currentState === 'Error') ) ){\r
 212                                                         return;\r
 213                                                 };\r
 214                                                 this._lastState = currentState; // update last state\r
 215                                 \r
 216                                                 switch (currentState) {\r
 217                                                         case 'Buffering':\r
 218                                                         case 'Opening':\r
 219                                                                         break;\r
 220                                         \r
 221                                                         // media.play(none supported file) -> 'Error'\r
 222                                                         // media.play(file not found)     -> 'Closed'\r
 223                                                         // media.load -> 'Error'\r
 224                                                         case 'Error':\r
 225                                                         case 'Closed':\r
 226                                                                         this._error = 4;\r
 227                                                                         this._ended = true;\r
 228                                                                         this._paused = false;\r
 229                                                                         this.proxy.dispatch( 'error' );\r
 230                                                                         break;\r
 231                                         \r
 232                                                         // userAction.pause()              -> MediaState('Paused') -> x\r
 233                                                         // userAction.stop()                    -> MediaState('Paused') -> x\r
 234                                                         // userAction.play() + file end -> MediaState('Paused') -> uueventfire('ended')\r
 235                                                         case 'Paused':\r
 236                                                                         switch (this._lastUserAction) {\r
 237                                                                                 case 'play': // play() -> file end -> event('ended')\r
 238                                                                                         this._ended = true;\r
 239                                                                                         this._paused = false;\r
 240                                                                                         this.proxy.dispatch( 'ended' );\r
 241                                                                                         this.currentTime(this._startTime);\r
 242                                                                                         break;\r
 243                                                                                 case 'pause':\r
 244                                                                                         this._ended = false;\r
 245                                                                                         this._paused = true;\r
 246                                                                                         break;\r
 247                                                                                 case 'stop':\r
 248                                                                                         this._ended = true;\r
 249                                                                                         this._paused = false;\r
 250                                                                         }\r
 251                                                                         break;\r
 252                                         \r
 253                                                         // media.play -> 'Playing'\r
 254                                                         case 'Playing':\r
 255                                                                         this._error = 0;\r
 256                                                                         this._ended = false;\r
 257                                                                         this._paused = false;\r
 258                                                                         this.proxy.dispatch( 'playing' );\r
 259                                                                         break;\r
 260                                         \r
 261                                                         // stop()\r
 262                                                         case 'Stopped':\r
 263                                                                         this._ended = true;\r
 264                                                                         this._paused = false;\r
 265                                                                         this.currentTime(this._startTime);\r
 266                                                 }\r
 267                                                 break;\r
 268                                         \r
 269                                         case X.Event.KILL_INSTANCE :\r
 270                                                 if( this._onload ){\r
 271                                                         window[ this._onload ] = null;\r
 272                                                         this._callback.kill();\r
 273                                                 };\r
 274                                                 this.xnodeObject.destroy();\r
 275                                                 break;\r
 276                                 };\r
 277                         },\r
 278                         \r
 279                         close : function(){\r
 280                                 if (this._interval) {\r
 281                                         X.Timer.remove( this._interval );\r
 282                                         delete this._interval;\r
 283                                 };\r
 284                                 this.proxy.dispatch( 'ended' );\r
 285                                 this.kill();\r
 286                         },\r
 287                         \r
 288                         // SilverlightAudio.play\r
 289                         play : function(){\r
 290                                 if (!this._error) {\r
 291                                         this._lastUserAction = 'play';\r
 292                                         if (this._ended) {\r
 293                                                 this.currentTime(this._startTime);\r
 294                                         }\r
 295                         \r
 296                                         this._rawObject.play();\r
 297                                         this.proxy.dispatch( 'play' );\r
 298                         \r
 299                                         if (!this._interval) {\r
 300                                                 this._interval = X.Timer.add( 1000, 0, this, this._onInterval );\r
 301                                         }\r
 302                                 }\r
 303                         },\r
 304                         \r
 305                         _onInterval : function(){\r
 306                                 this.isPlaying() && this.proxy.dispatch( 'timeupdate' );\r
 307                         },\r
 308                         \r
 309                         // SilverlightAudio.pause\r
 310                         pause : function(){\r
 311                                 if (!this._error) {\r
 312                                         this._lastUserAction = 'pause';\r
 313                                         this._paused = true;\r
 314                                         this._ended = false;\r
 315                                         this._rawObject.pause();\r
 316                                         this.proxy.dispatch( 'pause' );\r
 317                                 }\r
 318                         },\r
 319                         \r
 320                         // SilverlightAudio.stop\r
 321                         stop : function(){\r
 322                                 if (!this._error) {\r
 323                                         this._lastUserAction = 'stop';\r
 324                                         this._rawObject.stop();\r
 325                                         this._ended = true;\r
 326                                 }\r
 327                         },\r
 328                         \r
 329                         // SilverlightAudio.loop\r
 330                         loop : function(value){ // @param Boolean: true is loop\r
 331                                                                    // @return Boolean/void: true is loop\r
 332                                 if (value === undefined) {\r
 333                                         return this._loop;\r
 334                                 }\r
 335                                 this._loop = value;\r
 336                         },\r
 337                         \r
 338                         // SilverlightAudio.state\r
 339                         state : function(){ // @return Hash: { loop, error, paused, ended, source, duration }\r
 340                                 return {\r
 341                                         loop:      this._loop,\r
 342                                         error:    this._error,\r
 343                                         paused:  this._paused,\r
 344                                         ended:    this._ended,\r
 345                                         source:  this._source,\r
 346                                         duration:   this._duration\r
 347                                 };\r
 348                         },\r
 349                         \r
 350                         // SilverlightAudio.volume\r
 351                         volume : function(value){ // @param Number: 0.0 ~ 1.0\r
 352                                                                          // @return Number/void:\r
 353                                 if (value === undefined) {\r
 354                                         return this._volume;\r
 355                                 }\r
 356                                 this._volume = value;\r
 357                                 this._rawObject.Volume = value;\r
 358                         },\r
 359                         \r
 360                         // SilverlightAudio.startTime\r
 361                         startTime : function(time){ // @param Number: time\r
 362                                                                            // @return Number/void:\r
 363                                 if (time === undefined) {\r
 364                                         return this._startTime;\r
 365                                 }\r
 366                                 this._startTime = time;\r
 367                         },\r
 368                         \r
 369                         // SilverlightAudio.currentTime\r
 370                         currentTime : function(time){ // @param Number: time\r
 371                                                                                  // @return Number/void:\r
 372                                 var position = this._rawObject.Position; // [!] create instance\r
 373                                 \r
 374                                 if (time === undefined) {\r
 375                                         return position.Seconds;\r
 376                                 };\r
 377 \r
 378                                 position.Seconds = time; // set current time\r
 379                         \r
 380                                 this._rawObject.Position = position; // [!] reattach instance\r
 381                         },\r
 382                         \r
 383                         // SilverlightAudio.isPlaying\r
 384                         isPlaying : function(){ // @return Boolean:\r
 385                                 if (!this._error && !this._paused && !this._ended) {\r
 386                                         return true;\r
 387                                 }\r
 388                                 return false;\r
 389                         }\r
 390 \r
 391                 }\r
 392         );\r
 393         \r
 394 };\r