(function(a){StateMachine={VERSION:"2.1.0",Result:{SUCCEEDED:1,NOTRANSITION:2,CANCELLED:3,ASYNC:4},Error:{INVALID_TRANSITION:100,PENDING_TRANSITION:200,INVALID_CALLBACK:300},WILDCARD:"*",ASYNC:"async",create:function(f,g){var i=(typeof f.initial=="string")?{state:f.initial}:f.initial;var e=g||f.target||{};var k=f.events||[];var h=f.callbacks||{};var c={};var j=function(l){var o=(l.from instanceof Array)?l.from:(l.from?[l.from]:[StateMachine.WILDCARD]);c[l.name]=c[l.name]||{};for(var m=0;m<o.length;m++){c[l.name][o[m]]=l.to||o[m]}};if(i){i.event=i.event||"startup";j({name:i.event,from:"none",to:i.state})}for(var d=0;d<k.length;d++){j(k[d])}for(var b in c){if(c.hasOwnProperty(b)){e[b]=StateMachine.buildEvent(b,c[b])}}for(var b in h){if(h.hasOwnProperty(b)){e[b]=h[b]}}e.current="none";e.is=function(l){return this.current==l};e.can=function(l){return !this.transition&&(c[l].hasOwnProperty(this.current)||c[l].hasOwnProperty(StateMachine.WILDCARD))};e.cannot=function(l){return !this.can(l)};e.error=f.error||function(n,r,q,m,l,p,o){throw o||p};if(i&&!i.defer){e[i.event]()}return e},doCallback:function(g,d,c,i,h,b){if(d){try{return d.apply(g,[c,i,h].concat(b))}catch(f){return g.error(c,i,h,b,StateMachine.Error.INVALID_CALLBACK,"an exception occurred in a caller-provided callback function",f)}}},beforeEvent:function(d,c,f,e,b){return StateMachine.doCallback(d,d["onbefore"+c],c,f,e,b)},afterEvent:function(d,c,f,e,b){return StateMachine.doCallback(d,d["onafter"+c]||d["on"+c],c,f,e,b)},leaveState:function(d,c,f,e,b){return StateMachine.doCallback(d,d["onleave"+f],c,f,e,b)},enterState:function(d,c,f,e,b){return StateMachine.doCallback(d,d["onenter"+e]||d["on"+e],c,f,e,b)},changeState:function(d,c,f,e,b){return StateMachine.doCallback(d,d.onchangestate,c,f,e,b)},buildEvent:function(b,c){return function(){var h=this.current;var g=c[h]||c[StateMachine.WILDCARD]||h;var e=Array.prototype.slice.call(arguments);if(this.transition){return this.error(b,h,g,e,StateMachine.Error.PENDING_TRANSITION,"event "+b+" inappropriate because previous transition did not complete")}if(this.cannot(b)){return this.error(b,h,g,e,StateMachine.Error.INVALID_TRANSITION,"event "+b+" inappropriate in current state "+this.current)}if(false===StateMachine.beforeEvent(this,b,h,g,e)){return StateMachine.CANCELLED}if(h===g){StateMachine.afterEvent(this,b,h,g,e);return StateMachine.NOTRANSITION}var f=this;this.transition=function(){f.transition=null;f.current=g;StateMachine.enterState(f,b,h,g,e);StateMachine.changeState(f,b,h,g,e);StateMachine.afterEvent(f,b,h,g,e)};var d=StateMachine.leaveState(this,b,h,g,e);if(false===d){this.transition=null;return StateMachine.CANCELLED}else{if("async"===d){return StateMachine.ASYNC}else{if(this.transition){this.transition()}return StateMachine.SUCCEEDED}}}}};if("function"===typeof define){define([],function(){return StateMachine})}else{a.StateMachine=StateMachine}}(this));