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annotate src/implab/components/StateMachine.js @ 15:b85df31b7e0e

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Разработка кнопки выбора координат с карт
author nickolay
date Mon, 18 Sep 2017 21:59:41 +0300
parents 7d7059d2a810
children
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7d7059d2a810 Подправлены пути в пакетах
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1 define([ "dojo/_base/declare", "../safe", "../text/format" ], function(declare, safe, format) {
0
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2 return declare(null, {
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3 states : null,
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4
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5 current : null,
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6
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7 constructor : function(opts) {
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8 safe.argumentNotNull(opts, "opts");
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9 safe.argumentNotNull(opts.states, "opts.states");
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10 safe.argumentNotNull(opts.initial, "opts.initial");
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11
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12 this.states = opts.states;
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13 this.current = opts.initial;
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14
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15 if (safe.isNull(this.states[this.current]))
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16 throw new Error("Invalid initial state " + this.current);
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17 },
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18
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19 move : function(input, noThrow) {
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20 safe.argumentNotNull(input, "input");
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21
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22 var next = this.states[this.current][input];
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23 if(safe.isNull(next)) {
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24 if (noThrow)
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25 return false;
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26 else
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27 throw new Error(format("Invalid transition {0}-{1}->?", this.current, input));
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28 } else {
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29 this.current = next;
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30 return true;
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31 }
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32 }
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33 });
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34 });