howler.min.js

/*!
 *  howler.js v1.1.29
 *  howlerjs.com
 *
 *  (c) 2013-2016, James Simpson of GoldFire Studios
 *  goldfirestudios.com
 *
 *  MIT License
 */
!function(){var e={},o=null,n=!0,r=!1;try{"undefined"!=typeof AudioContext?o=new AudioContext:"undefined"!=typeof webkitAudioContext?o=new webkitAudioContext:n=!1}catch(t){n=!1}if(!n)if("undefined"!=typeof Audio)try{new Audio}catch(t){r=!0}else r=!0;if(n){var a="undefined"==typeof o.createGain?o.createGainNode():o.createGain();a.gain.value=1,a.connect(o.destination)}var i=function(e){this._volume=1,this._muted=!1,this.usingWebAudio=n,this.ctx=o,this.noAudio=r,this._howls=[],this._codecs=e,this.iOSAutoEnable=!0};i.prototype={volume:function(e){var o=this;if(e=parseFloat(e),e>=0&&1>=e){o._volume=e,n&&(a.gain.value=e);for(var r in o._howls)if(o._howls.hasOwnProperty(r)&&o._howls[r]._webAudio===!1)for(var t=0;t<o._howls[r]._audioNode.length;t++)o._howls[r]._audioNode[t].volume=o._howls[r]._volume*o._volume;return o}return n?a.gain.value:o._volume},mute:function(){return this._setMuted(!0),this},unmute:function(){return this._setMuted(!1),this},_setMuted:function(e){var o=this;o._muted=e,n&&(a.gain.value=e?0:o._volume);for(var r in o._howls)if(o._howls.hasOwnProperty(r)&&o._howls[r]._webAudio===!1)for(var t=0;t<o._howls[r]._audioNode.length;t++)o._howls[r]._audioNode[t].muted=e},codecs:function(e){return this._codecs[e]},_enableiOSAudio:function(){var e=this;if(!o||!e._iOSEnabled&&/iPhone|iPad|iPod/i.test(navigator.userAgent)){e._iOSEnabled=!1;var n=function(){var r=o.createBuffer(1,1,22050),t=o.createBufferSource();t.buffer=r,t.connect(o.destination),"undefined"==typeof t.start?t.noteOn(0):t.start(0),setTimeout(function(){(t.playbackState===t.PLAYING_STATE||t.playbackState===t.FINISHED_STATE)&&(e._iOSEnabled=!0,e.iOSAutoEnable=!1,window.removeEventListener("touchend",n,!1))},0)};return window.addEventListener("touchend",n,!1),e}}};var u=null,d={};r||(u=new Audio,d={mp3:!!u.canPlayType("audio/mpeg;").replace(/^no$/,""),opus:!!u.canPlayType('audio/ogg; codecs="opus"').replace(/^no$/,""),ogg:!!u.canPlayType('audio/ogg; codecs="vorbis"').replace(/^no$/,""),wav:!!u.canPlayType('audio/wav; codecs="1"').replace(/^no$/,""),aac:!!u.canPlayType("audio/aac;").replace(/^no$/,""),m4a:!!(u.canPlayType("audio/x-m4a;")||u.canPlayType("audio/m4a;")||u.canPlayType("audio/aac;")).replace(/^no$/,""),mp4:!!(u.canPlayType("audio/x-mp4;")||u.canPlayType("audio/mp4;")||u.canPlayType("audio/aac;")).replace(/^no$/,""),weba:!!u.canPlayType('audio/webm; codecs="vorbis"').replace(/^no$/,"")});var l=new i(d),f=function(e){var r=this;r._autoplay=e.autoplay||!1,r._buffer=e.buffer||!1,r._duration=e.duration||0,r._format=e.format||null,r._loop=e.loop||!1,r._loaded=!1,r._sprite=e.sprite||{},r._src=e.src||"",r._pos3d=e.pos3d||[0,0,-.5],r._volume=void 0!==e.volume?e.volume:1,r._urls=e.urls||[],r._rate=e.rate||1,r._model=e.model||null,r._onload=[e.onload||function(){}],r._onloaderror=[e.onloaderror||function(){}],r._onend=[e.onend||function(){}],r._onpause=[e.onpause||function(){}],r._onplay=[e.onplay||function(){}],r._onendTimer=[],r._webAudio=n&&!r._buffer,r._audioNode=[],r._webAudio&&r._setupAudioNode(),"undefined"!=typeof o&&o&&l.iOSAutoEnable&&l._enableiOSAudio(),l._howls.push(r),r.load()};if(f.prototype={load:function(){var e=this,o=null;if(r)return void e.on("loaderror",new Error("No audio support."));for(var n=0;n<e._urls.length;n++){var t,a;if(e._format)t=e._format;else{if(a=e._urls[n],t=/^data:audio\/([^;,]+);/i.exec(a),t||(t=/\.([^.]+)$/.exec(a.split("?",1)[0])),!t)return void e.on("loaderror",new Error("Could not extract format from passed URLs, please add format parameter."));t=t[1].toLowerCase()}if(d[t]){o=e._urls[n];break}}if(!o)return void e.on("loaderror",new Error("No codec support for selected audio sources."));if(e._src=o,e._webAudio)s(e,o);else{var u=new Audio;u.addEventListener("error",function(){u.error&&4===u.error.code&&(i.noAudio=!0),e.on("loaderror",{type:u.error?u.error.code:0})},!1),e._audioNode.push(u),u.src=o,u._pos=0,u.preload="auto",u.volume=l._muted?0:e._volume*l.volume();var f=function(){e._duration=Math.ceil(10*u.duration)/10,0===Object.getOwnPropertyNames(e._sprite).length&&(e._sprite={_default:[0,1e3*e._duration]}),e._loaded||(e._loaded=!0,e.on("load")),e._autoplay&&e.play(),u.removeEventListener("canplaythrough",f,!1)};u.addEventListener("canplaythrough",f,!1),u.load()}return e},urls:function(e){var o=this;return e?(o.stop(),o._urls="string"==typeof e?[e]:e,o._loaded=!1,o.load(),o):o._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(t){t._sprite=e;var a=t._pos>0?t._pos:r._sprite[e][0]/1e3,i=0;r._webAudio?(i=r._sprite[e][1]/1e3-t._pos,t._pos>0&&(a=r._sprite[e][0]/1e3+a)):i=r._sprite[e][1]/1e3-(a-r._sprite[e][0]/1e3);var u,d=!(!r._loop&&!r._sprite[e][2]),f="string"==typeof n?n:Math.round(Date.now()*Math.random())+"";if(function(){var o={id:f,sprite:e,loop:d};u=setTimeout(function(){!r._webAudio&&d&&r.stop(o.id).play(e,o.id),r._webAudio&&!d&&(r._nodeById(o.id).paused=!0,r._nodeById(o.id)._pos=0,r._clearEndTimer(o.id)),r._webAudio||d||r.stop(o.id),r.on("end",f)},i/r._rate*1e3),r._onendTimer.push({timer:u,id:o.id})}(),r._webAudio){var s=r._sprite[e][0]/1e3,_=r._sprite[e][1]/1e3;t.id=f,t.paused=!1,p(r,[d,s,_],f),r._playStart=o.currentTime,t.gain.value=r._volume,"undefined"==typeof t.bufferSource.start?d?t.bufferSource.noteGrainOn(0,a,86400):t.bufferSource.noteGrainOn(0,a,i):d?t.bufferSource.start(0,a,86400):t.bufferSource.start(0,a,i)}else{if(4!==t.readyState&&(t.readyState||!navigator.isCocoonJS))return r._clearEndTimer(f),function(){var o=r,a=e,i=n,u=t,d=function(){o.play(a,i),u.removeEventListener("canplaythrough",d,!1)};u.addEventListener("canplaythrough",d,!1)}(),r;t.readyState=4,t.id=f,t.currentTime=a,t.muted=l._muted||t.muted,t.volume=r._volume*l.volume(),setTimeout(function(){t.play()},0)}return r.on("play"),"function"==typeof n&&n(f),r}),r):("function"==typeof n&&n(),r):(r.on("load",function(){r.play(e,n)}),r)},pause:function(e){var o=this;if(!o._loaded)return o.on("play",function(){o.pause(e)}),o;o._clearEndTimer(e);var n=e?o._nodeById(e):o._activeNode();if(n)if(n._pos=o.pos(null,e),o._webAudio){if(!n.bufferSource||n.paused)return o;n.paused=!0,"undefined"==typeof n.bufferSource.stop?n.bufferSource.noteOff(0):n.bufferSource.stop(0)}else n.pause();return o.on("pause"),o},stop:function(e){var o=this;if(!o._loaded)return o.on("play",function(){o.stop(e)}),o;o._clearEndTimer(e);var n=e?o._nodeById(e):o._activeNode();if(n)if(n._pos=0,o._webAudio){if(!n.bufferSource||n.paused)return o;n.paused=!0,"undefined"==typeof n.bufferSource.stop?n.bufferSource.noteOff(0):n.bufferSource.stop(0)}else isNaN(n.duration)||(n.pause(),n.currentTime=0);return o},mute:function(e){var o=this;if(!o._loaded)return o.on("play",function(){o.mute(e)}),o;var n=e?o._nodeById(e):o._activeNode();return n&&(o._webAudio?n.gain.value=0:n.muted=!0),o},unmute:function(e){var o=this;if(!o._loaded)return o.on("play",function(){o.unmute(e)}),o;var n=e?o._nodeById(e):o._activeNode();return n&&(o._webAudio?n.gain.value=o._volume:n.muted=!1),o},volume:function(e,o){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,o)}),n;var r=o?n._nodeById(o):n._activeNode();return r&&(n._webAudio?r.gain.value=e:r.volume=e*l.volume()),n}return n._volume},loop:function(e){var o=this;return"boolean"==typeof e?(o._loop=e,o):o._loop},sprite:function(e){var o=this;return"object"==typeof e?(o._sprite=e,o):o._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 t=n?r._nodeById(n):r._activeNode();if(t)return e>=0?(r.pause(n),t._pos=e,r.play(t._sprite,n),r):r._webAudio?t._pos+(o.currentTime-r._playStart):t.currentTime;if(e>=0)return r;for(var a=0;a<r._audioNode.length;a++)if(r._audioNode[a].paused&&4===r._audioNode[a].readyState)return r._webAudio?r._audioNode[a]._pos:r._audioNode[a].currentTime},pos3d:function(e,o,n,r){var t=this;if(o="undefined"!=typeof o&&o?o:0,n="undefined"!=typeof n&&n?n:-.5,!t._loaded)return t.on("play",function(){t.pos3d(e,o,n,r)}),t;if(!(e>=0||0>e))return t._pos3d;if(t._webAudio){var a=r?t._nodeById(r):t._activeNode();a&&(t._pos3d=[e,o,n],a.panner.setPosition(e,o,n),a.panner.panningModel=t._model||"HRTF")}return t},fade:function(e,o,n,r,t){var a=this,i=Math.abs(e-o),u=e>o?"down":"up",d=i/.01,l=n/d;if(!a._loaded)return a.on("load",function(){a.fade(e,o,n,r,t)}),a;a.volume(e,t);for(var f=1;d>=f;f++)!function(){var e=a._volume+("up"===u?.01:-.01)*f,n=Math.round(1e3*e)/1e3,i=o;setTimeout(function(){a.volume(n,t),n===i&&r&&r()},l*f)}()},fadeIn:function(e,o,n){return this.volume(0).play().fade(0,e,o,n)},fadeOut:function(e,o,n,r){var t=this;return t.fade(t._volume,e,o,function(){n&&n(),t.pause(r),t.on("end")},r)},_nodeById:function(e){for(var o=this,n=o._audioNode[0],r=0;r<o._audioNode.length;r++)if(o._audioNode[r].id===e){n=o._audioNode[r];break}return n},_activeNode:function(){for(var e=this,o=null,n=0;n<e._audioNode.length;n++)if(!e._audioNode[n].paused){o=e._audioNode[n];break}return e._drainPool(),o},_inactiveNode:function(e){for(var o=this,n=null,r=0;r<o._audioNode.length;r++)if(o._audioNode[r].paused&&4===o._audioNode[r].readyState){e(o._audioNode[r]),n=!0;break}if(o._drainPool(),!n){var t;if(o._webAudio)t=o._setupAudioNode(),e(t);else{o.load(),t=o._audioNode[o._audioNode.length-1];var a=navigator.isCocoonJS?"canplaythrough":"loadedmetadata",i=function(){t.removeEventListener(a,i,!1),e(t)};t.addEventListener(a,i,!1)}}},_drainPool:function(){var e,o=this,n=0;for(e=0;e<o._audioNode.length;e++)o._audioNode[e].paused&&n++;for(e=o._audioNode.length-1;e>=0&&!(5>=n);e--)o._audioNode[e].paused&&(o._webAudio&&o._audioNode[e].disconnect(0),n--,o._audioNode.splice(e,1))},_clearEndTimer:function(e){for(var o=this,n=-1,r=0;r<o._onendTimer.length;r++)if(o._onendTimer[r].id===e){n=r;break}var t=o._onendTimer[n];t&&(clearTimeout(t.timer),o._onendTimer.splice(n,1))},_setupAudioNode:function(){var e=this,n=e._audioNode,r=e._audioNode.length;return n[r]="undefined"==typeof o.createGain?o.createGainNode():o.createGain(),n[r].gain.value=e._volume,n[r].paused=!0,n[r]._pos=0,n[r].readyState=4,n[r].connect(a),n[r].panner=o.createPanner(),n[r].panner.panningModel=e._model||"equalpower",n[r].panner.setPosition(e._pos3d[0],e._pos3d[1],e._pos3d[2]),n[r].panner.connect(n[r]),n[r]},on:function(e,o){var n=this,r=n["_on"+e];if("function"==typeof o)r.push(o);else for(var t=0;t<r.length;t++)o?r[t].call(n,o):r[t].call(n);return n},off:function(e,o){var n=this,r=n["_on"+e];if(o){for(var t=0;t<r.length;t++)if(o===r[t]){r.splice(t,1);break}}else n["_on"+e]=[];return n},unload:function(){for(var o=this,n=o._audioNode,r=0;r<o._audioNode.length;r++)n[r].paused||(o.stop(n[r].id),o.on("end",n[r].id)),o._webAudio?n[r].disconnect(0):n[r].src="";for(r=0;r<o._onendTimer.length;r++)clearTimeout(o._onendTimer[r].timer);var t=l._howls.indexOf(o);null!==t&&t>=0&&l._howls.splice(t,1),delete e[o._src],o=null}},n)var s=function(o,n){if(n in e)return o._duration=e[n].duration,void c(o);if(/^data:[^;]+;base64,/.test(n)){for(var r=atob(n.split(",")[1]),t=new Uint8Array(r.length),a=0;a<r.length;++a)t[a]=r.charCodeAt(a);_(t.buffer,o,n)}else{var i=new XMLHttpRequest;i.open("GET",n,!0),i.responseType="arraybuffer",i.onload=function(){_(i.response,o,n)},i.onerror=function(){o._webAudio&&(o._buffer=!0,o._webAudio=!1,o._audioNode=[],delete o._gainNode,delete e[n],o.load())};try{i.send()}catch(u){i.onerror()}}},_=function(n,r,t){o.decodeAudioData(n,function(o){o&&(e[t]=o,c(r,o))},function(e){r.on("loaderror",e)})},c=function(e,o){e._duration=o?o.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,t){var a=n._nodeById(t);a.bufferSource=o.createBufferSource(),a.bufferSource.buffer=e[n._src],a.bufferSource.connect(a.panner),a.bufferSource.loop=r[0],r[0]&&(a.bufferSource.loopStart=r[1],a.bufferSource.loopEnd=r[1]+r[2]),a.bufferSource.playbackRate.value=n._rate};"function"==typeof define&&define.amd&&define(function(){return{Howler:l,Howl:f}}),"undefined"!=typeof exports&&(exports.Howler=l,exports.Howl=f),"undefined"!=typeof window&&(window.Howler=l,window.Howl=f)}();