howler.min.js

/*!
 *  howler.js v1.1.26
 *  howlerjs.com
 *
 *  (c) 2013-2015, James Simpson of GoldFire Studios
 *  goldfirestudios.com
 *
 *  MIT License
 */
!function(){var e={},o=null,n=!0,t=!1;try{"undefined"!=typeof AudioContext?o=new AudioContext:"undefined"!=typeof webkitAudioContext?o=new webkitAudioContext:n=!1}catch(r){n=!1}if(!n)if("undefined"!=typeof Audio)try{new Audio}catch(r){t=!0}else t=!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=t,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 t in o._howls)if(o._howls.hasOwnProperty(t)&&o._howls[t]._webAudio===!1)for(var r=0;r<o._howls[t]._audioNode.length;r++)o._howls[t]._audioNode[r].volume=o._howls[t]._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 t in o._howls)if(o._howls.hasOwnProperty(t)&&o._howls[t]._webAudio===!1)for(var r=0;r<o._howls[t]._audioNode.length;r++)o._howls[t]._audioNode[r].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 t=o.createBuffer(1,1,22050),r=o.createBufferSource();r.buffer=t,r.connect(o.destination),"undefined"==typeof r.start?r.noteOn(0):r.start(0),setTimeout(function(){(r.playbackState===r.PLAYING_STATE||r.playbackState===r.FINISHED_STATE)&&(e._iOSEnabled=!0,e.iOSAutoEnable=!1,window.removeEventListener("touchstart",n,!1))},0)};return window.addEventListener("touchstart",n,!1),e}}};var u=null,d={};t||(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 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=void 0!==e.volume?e.volume:1,t._urls=e.urls||[],t._rate=e.rate||1,t._model=e.model||null,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(),"undefined"!=typeof o&&o&&l.iOSAutoEnable&&l._enableiOSAudio(),l._howls.push(t),t.load()};if(f.prototype={load:function(){var e=this,o=null;if(t)return void e.on("loaderror");for(var n=0;n<e._urls.length;n++){var r,a;if(e._format)r=e._format;else{if(a=e._urls[n],r=/^data:audio\/([^;,]+);/i.exec(a),r||(r=/\.([^.]+)$/.exec(a.split("?",1)[0])),!r)return void e.on("loaderror");r=r[1].toLowerCase()}if(d[r]){o=e._urls[n];break}}if(!o)return void e.on("loaderror");if(e._src=o,e._webAudio)_(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 t=this;return"function"==typeof e&&(n=e),e&&"function"!=typeof e||(e="_default"),t._loaded?t._sprite[e]?(t._inactiveNode(function(r){r._sprite=e;var a=r._pos>0?r._pos:t._sprite[e][0]/1e3,i=0;t._webAudio?(i=t._sprite[e][1]/1e3-r._pos,r._pos>0&&(a=t._sprite[e][0]/1e3+a)):i=t._sprite[e][1]/1e3-(a-t._sprite[e][0]/1e3);var u,d=!(!t._loop&&!t._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(){!t._webAudio&&d&&t.stop(o.id).play(e,o.id),t._webAudio&&!d&&(t._nodeById(o.id).paused=!0,t._nodeById(o.id)._pos=0,t._clearEndTimer(o.id)),t._webAudio||d||t.stop(o.id),t.on("end",f)},1e3*i),t._onendTimer.push({timer:u,id:o.id})}(),t._webAudio){var _=t._sprite[e][0]/1e3,s=t._sprite[e][1]/1e3;r.id=f,r.paused=!1,p(t,[d,_,s],f),t._playStart=o.currentTime,r.gain.value=t._volume,"undefined"==typeof r.bufferSource.start?d?r.bufferSource.noteGrainOn(0,a,86400):r.bufferSource.noteGrainOn(0,a,i):d?r.bufferSource.start(0,a,86400):r.bufferSource.start(0,a,i)}else{if(4!==r.readyState&&(r.readyState||!navigator.isCocoonJS))return t._clearEndTimer(f),function(){var o=t,a=e,i=n,u=r,d=function(){o.play(a,i),u.removeEventListener("canplaythrough",d,!1)};u.addEventListener("canplaythrough",d,!1)}(),t;r.readyState=4,r.id=f,r.currentTime=a,r.muted=l._muted||r.muted,r.volume=t._volume*l.volume(),setTimeout(function(){r.play()},0)}return t.on("play"),"function"==typeof n&&n(f),t}),t):("function"==typeof n&&n(),t):(t.on("load",function(){t.play(e,n)}),t)},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 t=o?n._nodeById(o):n._activeNode();return t&&(n._webAudio?t.gain.value=e:t.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 t=this;if(!t._loaded)return t.on("load",function(){t.pos(e)}),"number"==typeof e?t:t._pos||0;e=parseFloat(e);var r=n?t._nodeById(n):t._activeNode();if(r)return e>=0?(t.pause(n),r._pos=e,t.play(r._sprite,n),t):t._webAudio?r._pos+(o.currentTime-t._playStart):r.currentTime;if(e>=0)return t;for(var a=0;a<t._audioNode.length;a++)if(t._audioNode[a].paused&&4===t._audioNode[a].readyState)return t._webAudio?t._audioNode[a]._pos:t._audioNode[a].currentTime},pos3d:function(e,o,n,t){var r=this;if(o="undefined"!=typeof o&&o?o:0,n="undefined"!=typeof n&&n?n:-.5,!r._loaded)return r.on("play",function(){r.pos3d(e,o,n,t)}),r;if(!(e>=0||0>e))return r._pos3d;if(r._webAudio){var a=t?r._nodeById(t):r._activeNode();a&&(r._pos3d=[e,o,n],a.panner.setPosition(e,o,n),a.panner.panningModel=r._model||"HRTF")}return r},fade:function(e,o,n,t,r){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,t,r)}),a;a.volume(e,r);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,r),n===i&&t&&t()},l*f)}()},fadeIn:function(e,o,n){return this.volume(0).play().fade(0,e,o,n)},fadeOut:function(e,o,n,t){var r=this;return r.fade(r._volume,e,o,function(){n&&n(),r.pause(t),r.on("end")},t)},_nodeById:function(e){for(var o=this,n=o._audioNode[0],t=0;t<o._audioNode.length;t++)if(o._audioNode[t].id===e){n=o._audioNode[t];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,t=0;t<o._audioNode.length;t++)if(o._audioNode[t].paused&&4===o._audioNode[t].readyState){e(o._audioNode[t]),n=!0;break}if(o._drainPool(),!n){var r;if(o._webAudio)r=o._setupAudioNode(),e(r);else{o.load(),r=o._audioNode[o._audioNode.length-1];var a=navigator.isCocoonJS?"canplaythrough":"loadedmetadata",i=function(){r.removeEventListener(a,i,!1),e(r)};r.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=0,t=0;t<o._onendTimer.length;t++)if(o._onendTimer[t].id===e){n=t;break}var r=o._onendTimer[n];r&&(clearTimeout(r.timer),o._onendTimer.splice(n,1))},_setupAudioNode:function(){var e=this,n=e._audioNode,t=e._audioNode.length;return n[t]="undefined"==typeof o.createGain?o.createGainNode():o.createGain(),n[t].gain.value=e._volume,n[t].paused=!0,n[t]._pos=0,n[t].readyState=4,n[t].connect(a),n[t].panner=o.createPanner(),n[t].panner.panningModel=e._model||"equalpower",n[t].panner.setPosition(e._pos3d[0],e._pos3d[1],e._pos3d[2]),n[t].panner.connect(n[t]),n[t]},on:function(e,o){var n=this,t=n["_on"+e];if("function"==typeof o)t.push(o);else for(var r=0;r<t.length;r++)o?t[r].call(n,o):t[r].call(n);return n},off:function(e,o){var n=this,t=n["_on"+e],r=o?o.toString():null;if(r){for(var a=0;a<t.length;a++)if(r===t[a].toString()){t.splice(a,1);break}}else n["_on"+e]=[];return n},unload:function(){for(var o=this,n=o._audioNode,t=0;t<o._audioNode.length;t++)n[t].paused||(o.stop(n[t].id),o.on("end",n[t].id)),o._webAudio?n[t].disconnect(0):n[t].src="";for(t=0;t<o._onendTimer.length;t++)clearTimeout(o._onendTimer[t].timer);var r=l._howls.indexOf(o);null!==r&&r>=0&&l._howls.splice(r,1),delete e[o._src],o=null}},n)var _=function(o,n){if(n in e)return o._duration=e[n].duration,void c(o);if(/^data:[^;]+;base64,/.test(n)){for(var t=atob(n.split(",")[1]),r=new Uint8Array(t.length),a=0;a<t.length;++a)r[a]=t.charCodeAt(a);s(r.buffer,o,n)}else{var i=new XMLHttpRequest;i.open("GET",n,!0),i.responseType="arraybuffer",i.onload=function(){s(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()}}},s=function(n,t,r){o.decodeAudioData(n,function(o){o&&(e[r]=o,c(t,o))},function(e){t.on("loaderror")})},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,t,r){var a=n._nodeById(r);a.bufferSource=o.createBufferSource(),a.bufferSource.buffer=e[n._src],a.bufferSource.connect(a.panner),a.bufferSource.loop=t[0],t[0]&&(a.bufferSource.loopStart=t[1],a.bufferSource.loopEnd=t[1]+t[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)}();