state-jacket/lib/state-jacket.min.js

An intuitive state transition system for JavaScript

(function(){"use strict";var StateJacket,__slice=[].slice,__indexOf=[].indexOf||function(item){for(var i=0,l=this.length;i<l;i++){if(i in this&&this[i]===item)return i}return-1},__hasProp={}.hasOwnProperty;StateJacket={};StateJacket.Catalog=function(){function Catalog(){this.isLocked=false;this.states={}}Catalog.prototype.add=function(){var state,to,transitions;state=arguments[0],transitions=2<=arguments.length?__slice.call(arguments,1):[];if(this.isLocked){throw"Cannot modify locked StateJacket.Catalog object!"}return this.states[String(state)]=function(){var _i,_len,_results;_results=[];for(_i=0,_len=transitions.length;_i<_len;_i++){to=transitions[_i];_results.push(String(to))}return _results}()};Catalog.prototype.canTransition=function(from,to){var key,_ref;key=String(from);if(this.states[key]){if(_ref=String(to),__indexOf.call(this.states[key],_ref)>=0){return true}}return false};Catalog.prototype.transitioners=function(){var state,states,transitions,_ref;states=[];_ref=this.states;for(state in _ref){if(!__hasProp.call(_ref,state))continue;transitions=_ref[state];if(transitions.length>0){states.push(state)}}return states};Catalog.prototype.isTransitioner=function(state){var _ref;return _ref=String(state),__indexOf.call(this.transitioners(),_ref)>=0};Catalog.prototype.terminators=function(){var state,states,transitions,_ref;states=[];_ref=this.states;for(state in _ref){if(!__hasProp.call(_ref,state))continue;transitions=_ref[state];if(transitions.length===0){states.push(state)}}return states};Catalog.prototype.isTerminator=function(state){var _ref;return _ref=String(state),__indexOf.call(this.terminators(),_ref)>=0};Catalog.prototype.lock=function(){var state,transition,transitions,_i,_len,_ref;_ref=this.states;for(state in _ref){if(!__hasProp.call(_ref,state))continue;transitions=_ref[state];for(_i=0,_len=transitions.length;_i<_len;_i++){transition=transitions[_i];if(!(transition in this.states)){throw""+transition+" is not a first class state."}}}return this.isLocked=true};Catalog.prototype.each=function(iterator){var state,transitions,_ref,_results;_ref=this.states;_results=[];for(state in _ref){if(!__hasProp.call(_ref,state))continue;transitions=_ref[state];_results.push(iterator(state,transitions))}return _results};Catalog.prototype.keys=function(){var state,_ref,_results;_ref=this.states;_results=[];for(state in _ref){if(!__hasProp.call(_ref,state))continue;_results.push(state)}return _results};Catalog.prototype.supportsState=function(state){return String(state)in this.states};return Catalog}();if(typeof module==="object"&&module.exports){module.exports=StateJacket}else if(typeof define==="function"&&this.define.amd){define([],function(){return StateJacket})}else{this.StateJacket=StateJacket}}).call(this);