howler.min.js

/*!
 *  howler.js v1.1.14
 *  howlerjs.com
 *
 *  (c) 2013, James Simpson of GoldFire Studios
 *  goldfirestudios.com
 *
 *  MIT License
 */
!function(){var e={},t=null,n=!0,r=!1;if("undefined"!=typeof AudioContext)t=new AudioContext;else if("undefined"!=typeof webkitAudioContext)t=new webkitAudioContext;else if("undefined"!=typeof Audio){n=!1;try{new Audio}catch(i){r=!0}}else n=!1,r=!0;if(n){var s=void 0===t.createGain?t.createGainNode():t.createGain();s.gain.value=1,s.connect(t.destination)}var o=function(){this._volume=1,this._muted=!1,this.usingWebAudio=n,this._howls=[]};o.prototype={volume:function(e){var t=this;if(e=parseFloat(e),e&&e>=0&&1>=e){t._volume=e,n&&(s.gain.value=e);for(var r in t._howls)if(t._howls.hasOwnProperty(r)&&t._howls[r]._webAudio===!1)for(var i=0;i<t._howls[r]._audioNode.length;i++)t._howls[r]._audioNode[i].volume=t._howls[r]._volume*t._volume;return t}return n?s.gain.value:t._volume},mute:function(){return this._setMuted(!0),this},unmute:function(){return this._setMuted(!1),this},_setMuted:function(e){var t=this;t._muted=e,n&&(s.gain.value=e?0:t._volume);for(var r in t._howls)if(t._howls.hasOwnProperty(r)&&t._howls[r]._webAudio===!1)for(var i=0;i<t._howls[r]._audioNode.length;i++)t._howls[r]._audioNode[i].muted=e}};var u=new o,a=null;if(!r){a=new Audio;var f={mp3:!!a.canPlayType("audio/mpeg;").replace(/^no$/,""),opus:!!a.canPlayType('audio/ogg; codecs="opus"').replace(/^no$/,""),ogg:!!a.canPlayType('audio/ogg; codecs="vorbis"').replace(/^no$/,""),wav:!!a.canPlayType('audio/wav; codecs="1"').replace(/^no$/,""),m4a:!!(a.canPlayType("audio/x-m4a;")||a.canPlayType("audio/aac;")).replace(/^no$/,""),weba:!!a.canPlayType('audio/webm; codecs="vorbis"').replace(/^no$/,"")}}var l=function(e){var t=this;t._autoplay=e.autoplay||!1,t._buffer=e.buffer||!1,t._duration=e.duration||0,t._format=e.format||null,t._loop=e.loop||!1,t._loaded=!1,t._sprite=e.sprite||{},t._src=e.src||"",t._pos3d=e.pos3d||[0,0,-.5],t._volume=e.volume||1,t._urls=e.urls||[],t._rate=e.rate||1,t._onload=[e.onload||function(){}],t._onloaderror=[e.onloaderror||function(){}],t._onend=[e.onend||function(){}],t._onpause=[e.onpause||function(){}],t._onplay=[e.onplay||function(){}],t._onendTimer=[],t._webAudio=n&&!t._buffer,t._audioNode=[],t._webAudio&&t._setupAudioNode(),u._howls.push(t),t.load()};if(l.prototype={load:function(){var t=this,n=null;if(r)return t.on("loaderror"),void 0;for(var i=0;i<t._urls.length;i++){var s,o;if(t._format)s=t._format;else{if(o=t._urls[i].toLowerCase().split("?")[0],s=o.match(/.+\.([^?]+)(\?|$)/),s=s&&s.length>=2?s:o.match(/data\:audio\/([^?]+);/),!s)return t.on("loaderror"),void 0;s=s[1]}if(f[s]){n=t._urls[i];break}}if(!n)return t.on("loaderror"),void 0;if(t._src=n,t._webAudio)c(t,n);else{var a=new Audio;t._audioNode.push(a),a.src=n,a._pos=0,a.preload="auto",a.volume=u._muted?0:t._volume*u.volume(),e[n]=t;var l=function(){t._duration=a.duration,0===Object.getOwnPropertyNames(t._sprite).length&&(t._sprite={_default:[0,1e3*t._duration]}),t._loaded||(t._loaded=!0,t.on("load")),t._autoplay&&t.play(),a.removeEventListener("canplaythrough",l,!1)};a.addEventListener("canplaythrough",l,!1),a.load()}return t},urls:function(e){var t=this;return e?(t.stop(),t._urls="string"==typeof e?[e]:e,t._loaded=!1,t.load(),t):t._urls},play:function(e,n){var r=this;return"function"==typeof e&&(n=e),e&&"function"!=typeof e||(e="_default"),r._loaded?r._sprite[e]?(r._inactiveNode(function(i){i._sprite=e;var s,o=i._pos>0?i._pos:r._sprite[e][0]/1e3,a=r._sprite[e][1]/1e3-i._pos,f=!(!r._loop&&!r._sprite[e][2]),l="string"==typeof n?n:Math.round(Date.now()*Math.random())+"";if(function(){var t={id:l,sprite:e,loop:f};s=setTimeout(function(){!r._webAudio&&f&&r.stop(t.id,t.timer).play(e,t.id),r._webAudio&&!f&&(r._nodeById(t.id).paused=!0),r._webAudio||f||r.stop(t.id,t.timer),r.on("end",l)},1e3*a),r._onendTimer.push(s),t.timer=r._onendTimer[r._onendTimer.length-1]}(),r._webAudio){var c=r._sprite[e][0]/1e3,h=r._sprite[e][1]/1e3;i.id=l,i.paused=!1,p(r,[f,c,h],l),r._playStart=t.currentTime,i.gain.value=r._volume,void 0===i.bufferSource.start?i.bufferSource.noteGrainOn(0,o,a):i.bufferSource.start(0,o,a)}else{if(4!==i.readyState)return r._clearEndTimer(s),function(){var t=r,s=e,o=n,u=i,a=function(){t.play(s,o),u.removeEventListener("canplaythrough",a,!1)};u.addEventListener("canplaythrough",a,!1)}(),r;i.id=l,i.currentTime=o,i.muted=u._muted,i.volume=r._volume*u.volume(),setTimeout(function(){i.play()},0)}return r.on("play"),"function"==typeof n&&n(l),r}),r):("function"==typeof n&&n(),r):(r.on("load",function(){r.play(e,n)}),r)},pause:function(e,t){var n=this;if(!n._loaded)return n.on("play",function(){n.pause(e)}),n;n._clearEndTimer(t||0);var r=e?n._nodeById(e):n._activeNode();if(r)if(r._pos=n.pos(null,e),n._webAudio){if(!r.bufferSource)return n;r.paused=!0,void 0===r.bufferSource.stop?r.bufferSource.noteOff(0):r.bufferSource.stop(0)}else r.pause();return n.on("pause"),n},stop:function(e,t){var n=this;if(!n._loaded)return n.on("play",function(){n.stop(e)}),n;n._clearEndTimer(t||0);var r=e?n._nodeById(e):n._activeNode();if(r)if(r._pos=0,n._webAudio){if(!r.bufferSource)return n;r.paused=!0,void 0===r.bufferSource.stop?r.bufferSource.noteOff(0):r.bufferSource.stop(0)}else r.pause(),r.currentTime=0;return n},mute:function(e){var t=this;if(!t._loaded)return t.on("play",function(){t.mute(e)}),t;var n=e?t._nodeById(e):t._activeNode();return n&&(t._webAudio?n.gain.value=0:n.volume=0),t},unmute:function(e){var t=this;if(!t._loaded)return t.on("play",function(){t.unmute(e)}),t;var n=e?t._nodeById(e):t._activeNode();return n&&(t._webAudio?n.gain.value=t._volume:n.volume=t._volume),t},volume:function(e,t){var n=this;if(e=parseFloat(e),e>=0&&1>=e){if(n._volume=e,!n._loaded)return n.on("play",function(){n.volume(e,t)}),n;var r=t?n._nodeById(t):n._activeNode();return r&&(n._webAudio?r.gain.value=e:r.volume=e*u.volume()),n}return n._volume},loop:function(e){var t=this;return"boolean"==typeof e?(t._loop=e,t):t._loop},sprite:function(e){var t=this;return"object"==typeof e?(t._sprite=e,t):t._sprite},pos:function(e,n){var r=this;if(!r._loaded)return r.on("load",function(){r.pos(e)}),"number"==typeof e?r:r._pos||0;e=parseFloat(e);var i=n?r._nodeById(n):r._activeNode();if(i)return r._webAudio?e>=0?(i._pos=e,r.pause(n).play(i._sprite,n),r):i._pos+(t.currentTime-r._playStart):e>=0?(i.currentTime=e,r):i.currentTime;if(e>=0)return r;for(var s=0;s<r._audioNode.length;s++)if(r._audioNode[s].paused&&4===r._audioNode[s].readyState)return r._webAudio?r._audioNode[s]._pos:r._audioNode[s].currentTime},pos3d:function(e,t,n,r){var i=this;if(t=void 0!==t&&t?t:0,n=void 0!==n&&n?n:-.5,!i._loaded)return i.on("play",function(){i.pos3d(e,t,n,r)}),i;if(!(e>=0||0>e))return i._pos3d;if(i._webAudio){var s=r?i._nodeById(r):i._activeNode();s&&(i._pos3d=[e,t,n],s.panner.setPosition(e,t,n))}return i},fade:function(e,t,n,r,i){var s=this,o=Math.abs(e-t),u=e>t?"down":"up",a=o/.01,f=n/a;if(!s._loaded)return s.on("load",function(){s.fade(e,t,n,r,i)}),s;s.volume(e,i);for(var l=1;a>=l;l++)!function(){var e=s._volume+("up"===u?.01:-.01)*l,n=Math.round(1e3*e)/1e3,o=t;setTimeout(function(){s.volume(n,i),n===o&&r&&r()},f*l)}()},fadeIn:function(e,t,n){return this.volume(0).play().fade(0,e,t,n)},fadeOut:function(e,t,n,r){var i=this;return i.fade(i._volume,e,t,function(){n&&n(),i.pause(r),i.on("end")},r)},_nodeById:function(e){for(var t=this,n=t._audioNode[0],r=0;r<t._audioNode.length;r++)if(t._audioNode[r].id===e){n=t._audioNode[r];break}return n},_activeNode:function(){for(var e=this,t=null,n=0;n<e._audioNode.length;n++)if(!e._audioNode[n].paused){t=e._audioNode[n];break}return e._drainPool(),t},_inactiveNode:function(e){for(var t=this,n=null,r=0;r<t._audioNode.length;r++)if(t._audioNode[r].paused&&4===t._audioNode[r].readyState){e(t._audioNode[r]),n=!0;break}if(t._drainPool(),!n){var i;t._webAudio?(i=t._setupAudioNode(),e(i)):(t.load(),i=t._audioNode[t._audioNode.length-1],i.addEventListener("loadedmetadata",function(){e(i)}))}},_drainPool:function(){var e,t=this,n=0;for(e=0;e<t._audioNode.length;e++)t._audioNode[e].paused&&n++;for(e=t._audioNode.length-1;e>=0&&!(5>=n);e--)t._audioNode[e].paused&&(t._webAudio&&t._audioNode[e].disconnect(0),n--,t._audioNode.splice(e,1))},_clearEndTimer:function(e){var t=this,n=t._onendTimer.indexOf(e);n=n>=0?n:0,t._onendTimer[n]&&(clearTimeout(t._onendTimer[n]),t._onendTimer.splice(n,1))},_setupAudioNode:function(){var e=this,n=e._audioNode,r=e._audioNode.length;return n[r]=void 0===t.createGain?t.createGainNode():t.createGain(),n[r].gain.value=e._volume,n[r].paused=!0,n[r]._pos=0,n[r].readyState=4,n[r].connect(s),n[r].panner=t.createPanner(),n[r].panner.setPosition(e._pos3d[0],e._pos3d[1],e._pos3d[2]),n[r].panner.connect(n[r]),n[r]},on:function(e,t){var n=this,r=n["_on"+e];if("function"==typeof t)r.push(t);else for(var i=0;i<r.length;i++)t?r[i].call(n,t):r[i].call(n);return n},off:function(e,t){for(var n=this,r=n["_on"+e],i=""+t,s=0;s<r.length;s++)if(i===""+r[s]){r.splice(s,1);break}return n},unload:function(){for(var t=this,n=t._audioNode,r=0;r<t._audioNode.length;r++)t.stop(n[r].id),t._webAudio?n[r].disconnect(0):n[r].src="";var i=u._howls.indexOf(t);i&&u._howls.splice(i,1),delete e[t._src],t=null}},n)var c=function(n,r){if(r in e)n._duration=e[r].duration,h(n);else{var i=new XMLHttpRequest;i.open("GET",r,!0),i.responseType="arraybuffer",i.onload=function(){t.decodeAudioData(i.response,function(t){t&&(e[r]=t,h(n,t))})},i.onerror=function(){n._webAudio&&(n._buffer=!0,n._webAudio=!1,n._audioNode=[],delete n._gainNode,n.load())};try{i.send()}catch(s){i.onerror()}}},h=function(e,t){e._duration=t?t.duration:e._duration,0===Object.getOwnPropertyNames(e._sprite).length&&(e._sprite={_default:[0,1e3*e._duration]}),e._loaded||(e._loaded=!0,e.on("load")),e._autoplay&&e.play()},p=function(n,r,i){var s=n._nodeById(i);s.bufferSource=t.createBufferSource(),s.bufferSource.buffer=e[n._src],s.bufferSource.connect(s.panner),s.bufferSource.loop=r[0],r[0]&&(s.bufferSource.loopStart=r[1],s.bufferSource.loopEnd=r[1]+r[2]),s.bufferSource.playbackRate.value=n._rate};"function"==typeof define&&define.amd&&define(function(){return{Howler:u,Howl:l}}),window.Howler=u,window.Howl=l}()