3 * original : uupaa-js SilverlightAudio.js
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4 * https://code.google.com/p/uupaa-js/source/browse/trunk/0.8/src/Audio/SilverlightAudio.js?r=568
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6 * Silverlight 4 → 5における不具合の状況
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7 * http://www.slideshare.net/wakabayashiy/silverlight-4-5
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9 * IE10以降でSilverlightでF5押したらフリーズする不具合と対処
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10 * http://katsuyuzu.hatenablog.jp/entry/2014/01/11/003550
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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?)
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15 var X_Audio_SLAudio, X_Audio_SLAudioWrapper,
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16 X_Audio_SLAudio_uid = 0,
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17 X_Audio_SLAudio_LIVE_LIST = [],
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18 X_Audio_SLAudio_POOL_LIST = [];
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20 if( X.Pulgin.SilverlightEnabled ){
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22 function getSLAudioWrapper( proxy ){
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23 var i = X_Audio_SLAudio_LIVE_LIST.length;
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25 if( X_Audio_SLAudio_LIVE_LIST[ --i ].proxy === proxy ) return X_Audio_SLAudio_LIVE_LIST[ i ];
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29 X_Audio_SLAudio = X_Class_override(
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30 new X.EventDispatcher(),
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32 backendName : 'Silverlight Audio',
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34 detect : function( source, ext ){
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35 var ok = ext === 'mp3' || ext === 'wma';
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37 this.asyncDispatch( ok ? 'support' : 'nosupport' );
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42 register : function( proxy, source, option ){
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43 X_Audio_SLAudio_LIVE_LIST.push( new X_Audio_SLAudioWrapper( proxy, source, option ) );
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47 return getSLAudioWrapper( this ).close();
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50 play : function( position ){
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51 return getSLAudioWrapper( this ).play( position );
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55 return getSLAudioWrapper( this ).pause();
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59 return getSLAudioWrapper( this ).stop();
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62 loop : function( v ){
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63 return getSLAudioWrapper( this ).loop( v );
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67 return getSLAudioWrapper( this ).state();
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70 volume : function( v ){
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71 return getSLAudioWrapper( this ).volume( v );
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74 startTime : function( time ){
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75 return getSLAudioWrapper( this ).startTime( time );
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78 currentTime : function( time ){
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79 return getSLAudioWrapper( this ).currentTime( time );
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82 isPlaying : function(){
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83 return getSLAudioWrapper( this ).isPlaying();
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88 X_Audio_BACKENDS.push( X_Audio_SLAudio );
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94 X_Audio_SLAudioWrapper = X.EventDispatcher.inherits(
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95 'X.AV.SilverlightAudioWrapper',
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96 X.Class.POOL_OBJECT,
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98 _isSilverlight : true, // for X.EventDispatcher.listen
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102 xnodeObject : null,
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111 _lastUserAction : '',
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114 _interval : 0, // setInterval timer id
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116 Constructor : function( proxy, source, option ){
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118 if( !X_Audio_SLAudio_uid ){
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120 //X.X_Node_systemNode.create( 'script', { type : 'text/xaml', id : 'silverlightaudio' } )
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121 // .text( '<Canvas xmlns="http://schemas.microsoft.com/client/2007" ' +
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122 // 'xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"></Canvas>');
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125 // <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>
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128 * [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]
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129 * http://www.atmarkit.co.jp/fdotnet/dotnettips/902slobjcallfromjs/slobjcallfromjs.html
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130 * 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.
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134 this.proxy = proxy;
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135 this._onload = 'XAudioSilverlightOnLoad' + ( ++X_Audio_SLAudio_uid );
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136 this._callback = window[ this._onload ] = X_Callback_create( this, this.onSLReady, [ option.autoplay ] );
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137 this.xnodeObject = X_Node_body
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138 .create( 'object', {
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139 type : 'application/x-silverlight-2',
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140 data : 'data:application/x-silverlight-2,',
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145 '<param name="background" value="#00000000">' + // transparent
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146 '<param name="windowless" value="true">' +
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147 '<param name="source" value="#silverlightaudio">' + // XAML ID
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148 '<param name="onload" value="' + this._onload + '">'// + // bond to global
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149 //'<param value="2.0.31005.0" name="minRuntimeVersion">' +
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150 //'<param value="true" name="autoUpgrade">' +
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151 //'<param name="onerror" value="slerror">' // bond to global
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154 this._loop = option.loop;
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155 this._source = source;
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156 if( option.volume ) this._volume = option.volume;
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157 if( option.startTime ) this._startTime = option.startTime;
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159 this.listenOnce( X.Event.KILL_INSTANCE );
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162 onSLReady : function( sender, autoplay ){
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163 if( !this._onload ) return;
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165 window[ this._onload ] = null;
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166 delete this._onload;
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167 X_Callback_correct( this._callback );
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168 delete this._callback;
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170 //if( sender.findName('media') ) alert( 'exist' );
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172 sender.children.add(
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176 '<Canvas xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml">' +
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177 '<MediaElement x:Name="media" Source="' + this._source + '" Volume="' + this._volume + '" AutoPlay="false" />' +
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180 this._rawObject = sender.findName('media'); // x:Name='media'
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182 this.listen( [ 'MediaFailed', 'MediaOpened', 'MediaEnded', 'CurrentStateChanged' ] );
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184 autoplay && X.Timer.once( 100, this, this.play );
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187 handleEvent : function( e ){
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188 var lastState, currentState;
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192 case 'MediaFailed' :
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194 this._ended = true;
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195 this._paused = false;
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197 this.proxy.dispatch( 'error' ); // open failed
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199 case 'MediaOpened' :
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200 // http://msdn.microsoft.com/ja-jp/library/bb979710(VS.95).aspx
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201 this._duration = this._rawObject.NaturalDuration.Seconds;
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202 // TODO 'canplaythrough'
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203 this.proxy.dispatch( 'canplay' );
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205 case 'MediaEnded' :
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206 this.currentTime(this._startTime);
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209 this._rawObject.play();
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212 case 'CurrentStateChanged' :
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213 lastState = this._lastState,
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214 currentState = this._rawObject.CurrentState;
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216 // ignore consecutive events or 'Closed' == 'Error'
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217 if( lastState === currentState
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218 || ( (lastState === 'Closed' || lastState === 'Error') && ( currentState === 'Closed' || currentState === 'Error') ) ){
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221 this._lastState = currentState; // update last state
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223 switch (currentState) {
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228 // media.play(none supported file) -> 'Error'
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229 // media.play(file not found) -> 'Closed'
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230 // media.load -> 'Error'
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234 this._ended = true;
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235 this._paused = false;
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236 this.proxy.dispatch( 'error' );
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239 // userAction.pause() -> MediaState('Paused') -> x
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240 // userAction.stop() -> MediaState('Paused') -> x
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241 // userAction.play() + file end -> MediaState('Paused') -> uueventfire('ended')
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243 switch (this._lastUserAction) {
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244 case 'play': // play() -> file end -> event('ended')
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245 this._ended = true;
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246 this._paused = false;
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247 this.proxy.dispatch( 'ended' );
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248 this.currentTime(this._startTime);
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251 this._ended = false;
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252 this._paused = true;
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255 this._ended = true;
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256 this._paused = false;
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260 // media.play -> 'Playing'
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263 this._ended = false;
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264 this._paused = false;
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265 this.proxy.dispatch( 'playing' );
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270 this._ended = true;
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271 this._paused = false;
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272 this.currentTime(this._startTime);
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276 case X.Event.KILL_INSTANCE :
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277 if( this._onload ){
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278 window[ this._onload ] = null;
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279 this._callback.kill();
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281 this.xnodeObject.destroy();
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286 close : function(){
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287 if (this._interval) {
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288 X.Timer.remove( this._interval );
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289 delete this._interval;
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291 this.proxy.dispatch( 'ended' );
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295 // SilverlightAudio.play
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297 if (!this._error) {
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298 this._lastUserAction = 'play';
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300 this.currentTime(this._startTime);
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303 this._rawObject.play();
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304 this.proxy.dispatch( 'play' );
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306 if (!this._interval) {
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307 this._interval = X.Timer.add( 1000, 0, this, this._onInterval );
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312 _onInterval : function(){
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313 this.isPlaying() && this.proxy.dispatch( 'timeupdate' );
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316 // SilverlightAudio.pause
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317 pause : function(){
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318 if (!this._error) {
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319 this._lastUserAction = 'pause';
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320 this._paused = true;
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321 this._ended = false;
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322 this._rawObject.pause();
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323 this.proxy.dispatch( 'pause' );
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327 // SilverlightAudio.stop
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329 if (!this._error) {
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330 this._lastUserAction = 'stop';
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331 this._rawObject.stop();
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332 this._ended = true;
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336 // SilverlightAudio.loop
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337 loop : function(value){ // @param Boolean: true is loop
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338 // @return Boolean/void: true is loop
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339 if (value === undefined) {
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342 this._loop = value;
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345 // SilverlightAudio.state
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346 state : function(){ // @return Hash: { loop, error, paused, ended, source, duration }
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349 error : this._error,
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350 paused : this._paused,
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351 ended : this._ended,
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352 source : this._source,
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353 duration : this._duration
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357 // SilverlightAudio.volume
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358 volume : function(value){ // @param Number: 0.0 ~ 1.0
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359 // @return Number/void:
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360 if (value === undefined) {
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361 return this._volume;
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363 this._volume = value;
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364 this._rawObject.Volume = value;
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367 // SilverlightAudio.startTime
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368 startTime : function(time){ // @param Number: time
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369 // @return Number/void:
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370 if (time === undefined) {
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371 return this._startTime;
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373 this._startTime = time;
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376 // SilverlightAudio.currentTime
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377 currentTime : function(time){ // @param Number: time
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378 // @return Number/void:
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379 var position = this._rawObject.Position; // [!] create instance
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381 if (time === undefined) {
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382 return position.Seconds;
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385 position.Seconds = time; // set current time
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387 this._rawObject.Position = position; // [!] reattach instance
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390 // SilverlightAudio.isPlaying
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391 isPlaying : function(){ // @return Boolean:
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392 if (!this._error && !this._paused && !this._ended) {
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