3 * http://uupaa.hatenablog.com/entry/2011/12/12/213233
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4 * Mobile Opera11 は Audio をサポートするがイベントが取れない
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5 * iframe 内で生成して、Audio Sprite の preset で再生できないか?
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7 var X_Audio_Sprite_shouldUse = window.HTMLAudioElement && ( X_UA[ 'iOS' ] || X_UA[ 'AndroidBrowser' ] || X_UA[ 'OperaMobile' ] || X_UA[ 'OperaTablet' ] ), // Flash がない
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8 X_Audio_Sprite_useVideoForMulti = 4 <= X_UA[ 'AndroidBrowser' ] && 534.3 < X_UA[ 'AndroidWebkit' ], // ドスパラパッドはビデオのインライン再生が不可
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9 X_Audio_Sprite_needTouchAndroid = X_Audio_Sprite_useVideoForMulti,
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10 X_Audio_Sprite_needTouchFirst = X_UA[ 'iOS' ] || X_Audio_Sprite_needTouchAndroid || ( X_UA[ 'WinPhone' ] && X_UA[ 'IE9' ] ),
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11 X_Audio_Sprite_enableMultiTrack = !( X_UA[ 'iOS' ] && !X_Audio_WebAudio_context ) && !( X_UA[ 'AndroidBrowser4' ] && X_UA[ 'AndroidWebkit' ] <= 534.3 ) && !( X_UA[ 'WinPhone' ] && X_UA[ 'IE9' ] ),
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12 X_Audio_Sprite_enableVolume = window.HTMLAudioElement && ( !X_UA[ 'iOS' ] && !X_UA[ 'AndroidBrowser' ] && !X_UA[ 'OperaMobile' ] && !X_UA[ 'OperaTablet' ] ), // TODO fennec は 25以上
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13 X_Audio_Sprite_maxTracks = !X_Audio_Sprite_enableMultiTrack ? 1 : X_Audio_Sprite_useVideoForMulti ? 2 : 9,
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14 X_Audio_Sprite_lengthSilence = 10000, // 一番最初の無音部分の長さ
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15 X_Audio_Sprite_lengthDistance = 5000, // 音間の無音の長さ
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16 X_Audio_Sprite_uid = 0,
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17 X_Audio_Sprite_members = {},
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18 X_Audio_Sprite_TEMP = {
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22 pauseTracks : [], // X_EVENT_DEACTIVATE によって pause した再生中のトラックたち。
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30 X_Audio_Sprite_instance,
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31 X_Audio_Sprite_numTracks,
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32 X_Audio_Sprite_useVideo;
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34 X[ 'AudioSprite' ] = function( setting ){
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35 var tracks = X_Audio_Sprite_TEMP.tracks,
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36 bgms = X_Audio_Sprite_TEMP.BGMs,
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37 presets = X_Audio_Sprite_TEMP.presets,
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38 urls = setting[ 'urls' ],
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39 video = setting[ 'useVideo' ],
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40 n = video ? 1 : setting[ 'numTracks' ] || 1,
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42 volume : setting[ 'volume' ] || 0.5,
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45 endTime : X_Audio_Sprite_lengthSilence,
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50 if( !X_Audio_Sprite_instance ){
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51 X_Audio_Sprite_instance = X_Class_override( X_EventDispatcher(), X_Audio_Sprite_members );
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52 X_ViewPort[ 'listen' ]( [ X_EVENT_VIEW_ACTIVATE, X_EVENT_VIEW_DEACTIVATE ], X_Audio_Sprite_instance, X_Audio_Sprite_handleEvent );
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55 n = n <= X_Audio_Sprite_maxTracks ? n : X_Audio_Sprite_maxTracks;
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57 for( k in setting ){
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59 if( X_Type_isArray( v ) && v !== urls ){
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60 v = X_Array_copy( v );
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61 for( i = v.length; i; ){
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63 if( i !== 2 ) v[ i ] = X_AudioWrapper_timeStringToNumber( v[ i ] );
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65 if( v[ 2 ] ) bgms[ k ] = v;
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70 X_Audio_startDetectionBackend( X_Audio_BACKENDS[ 0 ], X_Audio_Sprite_instance, X_Array_copy( urls ), option );
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72 X_Audio_Sprite_instance[ 'listenOnce' ]( [ X_EVENT_BACKEND_READY, X_EVENT_BACKEND_NONE ], X_AudioSprite_backendHandler );
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73 X_Audio_Sprite_instance[ 'listenOnce' ]( X_EVENT_KILL_INSTANCE, X_Audio_Sprite_handleEvent );
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75 X_Audio_Sprite_useVideo = video;
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76 X_Audio_Sprite_numTracks = X_Audio_Sprite_instance[ 'numTracks' ] = n;
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78 return X_Audio_Sprite_instance;
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81 X[ 'AudioSprite' ][ 'shouldUse' ] = X_Audio_Sprite_shouldUse;
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82 X[ 'AudioSprite' ][ 'needTouchFirst' ] = X_Audio_Sprite_needTouchFirst;
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83 X[ 'AudioSprite' ][ 'enableMultiTrack' ] = X_Audio_Sprite_enableMultiTrack;
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85 // 再生が終わっているもの、終わりかけのものを探す
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86 // TODO 終わりかけのもの、と一番古いもの、どちらを再利用するか?これ以上に細かい実装を望む場合は X.Audio.Sprite は使わず自力で実装
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87 function X_Audio_Sprite_getTrackEnded(){
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88 var tracks = X_Audio_Sprite_TEMP.tracks,
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90 i = 0, track, state, last = 1 / 0, _last, index;
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92 for( ; i < l; ++i ){
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93 track = tracks[ i ];
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94 state = track.getState();
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95 if( !state.playing ) return track;
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96 if( track === X_Audio_Sprite_TEMP.bgmTrack ) continue;
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97 if( state.currentTime <= X_Audio_Sprite_lengthSilence + X_Audio_Sprite_lengthDistance ) return track;
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98 _last = state.endTime - state.currentTime;
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104 return tracks[ index ];
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109 * urls : [ 'xx.ogg', 'xx.mp3' ],
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111 * useVideo : false,
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113 * BGM_01 : [ '15.00', '45.500', true, '17.666', '50.999' ],
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114 * BGM_02 : [ '56.00', '1:15.230', true ]
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117 * X_EVENT_BACKEND_READY
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118 * X_EVENT_BACKEND_NONE
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121 * X_EVENT_MEDIA_LOOPED
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122 * X_EVENT_MEDIA_ENDED
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126 X_Audio_Sprite_members = {
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130 'load' : function(){
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131 var tracks = X_Audio_Sprite_TEMP.tracks,
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132 i = 0, l = tracks.length;
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133 for( ; i < l; ++i ){
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134 if( X_UA[ 'WinPhone' ] ){
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135 console.log( 'WinPhone : touch -> play()' );
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136 //tracks[ i ].play( 0, X_Audio_Sprite_lengthSilence, true, 0, X_Audio_Sprite_lengthSilence ).seek( 0 );
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137 this[ 'pause' ]( i );
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139 tracks[ i ][ '_rawObject' ].load();
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145 * @return uid Number
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147 'play' : function( name ){
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148 var bgm = X_Audio_Sprite_TEMP.bgmTrack,
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149 tracks = X_Audio_Sprite_TEMP.tracks,
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150 bgms = X_Audio_Sprite_TEMP.BGMs,
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151 presets = X_Audio_Sprite_TEMP.presets,
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152 preset = presets[ name ],
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156 if( bgms[ name ] ){
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157 if( name !== X_Audio_Sprite_TEMP.bgmName ){
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159 X_Audio_Sprite_TEMP.bgmName = name;
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160 X_Audio_Sprite_TEMP.bgmPosition = preset[ 0 ];
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161 X_Audio_Sprite_TEMP.bgmLooped = false;
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164 X_Audio_Sprite_TEMP.bgmPlaying = true;
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169 if( 1 < tracks.length ){
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170 track = X_Audio_Sprite_TEMP.bgmTrack = X_Audio_Sprite_getTrackEnded();
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172 track = X_Audio_Sprite_TEMP.bgmTrack = tracks[ 0 ];
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175 if( track[ 'listen' ]( [ X_EVENT_MEDIA_PLAYING, X_EVENT_MEDIA_BEFORE_LOOP ], this, X_Audio_Sprite_handleEvent ).playing ){
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178 'looped' : X_Audio_Sprite_TEMP.bgmLooped,
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179 'currentTime' : X_Audio_Sprite_TEMP.bgmPosition,
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180 'startTime' : preset[ 0 ],
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181 'endTime' : preset[ 1 ],
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182 'loopStartTime' : preset[ 3 ],
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183 'loopEndTime' : preset[ 4 ]
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186 track.setState( { 'looped' : X_Audio_Sprite_TEMP.bgmLooped } );
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187 track.play( preset[ 0 ], preset[ 1 ], true, preset[ 3 ], preset[ 4 ] );
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188 track.seek( X_Audio_Sprite_TEMP.bgmPosition );
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192 if( 1 < tracks.length ){
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193 track = X_Audio_Sprite_getTrackEnded( X_Audio_Sprite_TEMP.bgmPlaying );
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195 [ 'listen' ]( [ X_EVENT_MEDIA_PLAYING, X_EVENT_MEDIA_BEFORE_LOOP ], this, X_Audio_Sprite_handleEvent )
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196 .setState( { 'looped' : false } );
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197 track.play( preset[ 0 ], preset[ 1 ], true, 0, X_Audio_Sprite_lengthSilence );
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199 // single track, iOS
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201 X_Audio_Sprite_TEMP.bgmPosition = bgm.currentTime();
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202 //console.log( 'bgm position : ' + X_Audio_Sprite_TEMP.bgmPosition + ' isPlay:' + bgm.playing );
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203 X_Audio_Sprite_TEMP.bgmTrack = null;
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205 track = tracks[ 0 ];
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207 if( track[ 'listen' ]( [ X_EVENT_MEDIA_PLAYING, X_EVENT_MEDIA_BEFORE_LOOP ], this, X_Audio_Sprite_handleEvent ).playing ){
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211 //'currentTime' : preset[ 0 ],
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212 'startTime' : preset[ 0 ],
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213 'endTime' : preset[ 1 ],
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214 'loopStartTime' : 0,
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215 'loopEndTime' : X_Audio_Sprite_lengthSilence
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218 track.play( preset[ 0 ], preset[ 1 ], true, 0, X_Audio_Sprite_lengthSilence );
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222 return tracks.indexOf( track );
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227 'pause' : function( uid ){
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228 var track = X_Audio_Sprite_TEMP.tracks[ uid ];
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229 if( X_Audio_Sprite_TEMP.bgmTrack === track ){
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230 X_Audio_Sprite_TEMP.bgmPosition = track.currentTime();
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231 X_Audio_Sprite_TEMP.bgmPlaying = false;
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232 X_Audio_Sprite_TEMP.bgmTrack = null;
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234 track && track.play( 0, X_Audio_Sprite_lengthSilence, true, 0, X_Audio_Sprite_lengthSilence );
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235 track && track.seek( 0 );
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236 this[ 'asyncDispatch' ]( X_EVENT_MEDIA_PAUSED );
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240 'seek' : function( uid, position ){
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241 var track = X_Audio_Sprite_TEMP.tracks[ uid ],
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244 delete track.seekTime;
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245 end = X_AudioWrapper_getEndTime( track );
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246 position <= end && X_AudioWrapper_getStartTime( track, end ) <= position && track.seek( postion );
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251 'volume' : function( uid, opt_volume ){
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255 if( opt_volume === undefined ){
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256 return X_Audio_Sprite_TEMP.volume;
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258 for( i = X_Audio_Sprite_TEMP.tracks.length; i; ){
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259 X_Audio_Sprite_TEMP.tracks[ --i ].volume( opt_volume );
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263 track = X_Audio_Sprite_TEMP.tracks[ uid ];
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264 if( opt_volume === undefined ){
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265 return track ? track.gain : -1;
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267 track && track.volume( opt_volume );
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271 'state' : function( uid, opt_obj ){
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272 var track = X_Audio_Sprite_TEMP.tracks[ uid ],
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275 if( opt_obj === undefined ){
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278 state = track.getState();
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279 start = state.startTime;
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281 'currentTime' : state.currentTime - start,
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282 'playing' : start <= state.currentTime && state.currentTime <= state.endTime,
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283 'duration' : state.endTime - start,
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284 'volume' : X_Audio_Sprite_TEMP.volume
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287 return { 'volume' : X_Audio_Sprite_TEMP.volume, 'playing' : false };
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289 track && track.setState( opt_obj );
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294 function X_AudioSprite_backendHandler( e ){
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295 var i, backend, option, src, name, last, _e;
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298 case X_EVENT_BACKEND_READY :
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300 backend = X_Audio_BACKENDS[ e[ 'backendID' ] ];
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301 option = e[ 'option' ];
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303 this[ 'unlisten' ]( X_EVENT_BACKEND_NONE, X_AudioSprite_backendHandler );
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304 this[ 'source' ] = src = e[ 'source' ];
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305 this[ 'backendName' ] = name = backend.backendName;
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307 for( i = 0; i < X_Audio_Sprite_numTracks; ++i ){
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308 if( X_Audio_Sprite_useVideo || ( i === 1 && X_Audio_Sprite_useVideoForMulti ) ){
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309 option[ 'useVideo' ] = true;
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311 // Audiobackend の owner として null を渡すとAudioBackend 自身へ dispatch する
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312 X_Audio_Sprite_TEMP.tracks.push( last = backend.klass( null, e[ 'source' ], option ) );
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316 'type' : X_EVENT_BACKEND_READY,
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318 'backendName' : name
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321 if( X_Audio_Sprite_needTouchFirst ){
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322 if( name === 'Web Audio' ){
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323 _e[ 'needTouchForPlay' ] = true;
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325 _e[ 'needTouchForLoad' ] = true;
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328 this[ 'asyncDispatch' ]( _e );
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330 last[ 'listenOnce' ]( X_EVENT_READY, this, X_AudioSprite_backendHandler );
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332 // READY, needTouchForPlay, needTouchForLoad
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333 if( X_Audio_HTMLAudioWrapper_durationFix ){
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334 for( i = 0; i < X_Audio_Sprite_TEMP.tracks.length; ++i ){
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335 this[ 'pause' ]( i );
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339 return X_CALLBACK_STOP_NOW;
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341 case X_EVENT_BACKEND_NONE :
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342 this[ 'unlisten' ]( X_EVENT_BACKEND_READY, this, X_AudioSprite_backendHandler )
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343 [ 'asyncDispatch' ]( X_EVENT_BACKEND_NONE );
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344 return X_CALLBACK_STOP_NOW;
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346 case X_EVENT_READY :
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347 console.log( 'X.AudioSprite - Ready!' );
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349 if( X_Audio_Sprite_needTouchAndroid ){
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350 for( i = 0; i < X_Audio_Sprite_TEMP.tracks.length; ++i ){
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351 this[ 'pause' ]( i );
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353 e.target[ 'listenOnce' ]( X_EVENT_MEDIA_PLAYING, this, this.asyncDispatch, [ X_EVENT_READY ] ); // Android 標準ブラウザ
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356 this[ 'asyncDispatch' ]( X_EVENT_READY );
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362 function X_Audio_Sprite_handleEvent( e ){
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363 var i, tracks, track, _e, k;
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366 case X_EVENT_MEDIA_PLAYING :
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367 ( e.target === X_Audio_Sprite_TEMP.bgmTrack || !e.target.looped ) && this[ 'asyncDispatch' ]( X_EVENT_MEDIA_PLAYING );
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370 case X_EVENT_MEDIA_BEFORE_LOOP :
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371 if( e.target === X_Audio_Sprite_TEMP.bgmTrack ){
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372 X_Audio_Sprite_TEMP.bgmLooped = true;
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373 this[ 'asyncDispatch' ]( X_EVENT_MEDIA_LOOPED ); // TODO uid
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375 if( e.target.looped ){
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376 //this[ 'asyncDispatch' ]( X_EVENT_MEDIA_LOOPED ); // TODO uid
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378 this[ 'asyncDispatch' ]( X_EVENT_MEDIA_ENDED ); // TODO uid
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381 console.log( '[AudioSprite] ' + X_Audio_Sprite_TEMP.bgmPlaying + ' ' + !X_Audio_Sprite_TEMP.bgmTrack );
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383 // single track | iOS
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384 if( X_Audio_Sprite_TEMP.bgmPlaying && !X_Audio_Sprite_TEMP.bgmTrack ){
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385 X_Audio_Sprite_TEMP.bgmTrack = e.target;
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386 this.play( X_Audio_Sprite_TEMP.bgmName );
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387 return X.Callback.PREVENT_DEFAULT;
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392 // TODO Android Firefox で アクティブ検出できない!
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393 case X_EVENT_VIEW_ACTIVATE :
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394 console.log( '■ アクティブ' );
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395 // track.play(); or iOS need touch??
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396 tracks = X_Audio_Sprite_TEMP.pauseTracks;
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397 while( tracks.length ) tracks.pop().actualPlay();
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400 case X_EVENT_VIEW_DEACTIVATE :
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401 console.log( '■ デアクティブ' );
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403 tracks = X_Audio_Sprite_TEMP.tracks;
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406 track = tracks[ --i ];
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407 track.playing && X_Audio_Sprite_TEMP.pauseTracks.push( track ) && track.pause();
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411 case X_EVENT_KILL_INSTANCE :
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413 while( X_Audio_Sprite_TEMP.tracks.length ){
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414 X_Audio_Sprite_TEMP.tracks.pop()[ 'kill' ]();
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417 for( k in X_Audio_Sprite_TEMP.bgms ){
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418 delete X_Audio_Sprite_TEMP.bgms[ k ];
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420 for( k in X_Audio_Sprite_TEMP.presets ){
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421 delete X_Audio_Sprite_TEMP.presets[ k ];
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424 X_Audio_Sprite_TEMP.bgmTrack = null;
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425 X_Audio_Sprite_TEMP.bgmPosition = 0;
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426 X_Audio_Sprite_TEMP.bgmName = '';
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427 X_Audio_Sprite_TEMP.bgmLooped = false;
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428 X_Audio_Sprite_TEMP.bgmPlaying = false;
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430 X_ViewPort[ 'unlisten' ]( [ X_EVENT_VIEW_ACTIVATE, X_EVENT_VIEW_DEACTIVATE ], this, X_Audio_Sprite_handleEvent );
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