Created
September 6, 2012 03:10
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node oop module
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| var oop = require('oop'); | |
| var EventEmitter = require('events').EventEmitter; | |
| function KitchenTimer(properties) { | |
| this._interval = null; | |
| this._timeout = null; | |
| this._minutes = null; | |
| this._start = null; | |
| oop.inherits(this, EventEmitter); | |
| oop.mixin(this, properties); | |
| } | |
| KitchenTimer.SECOND = 1000; | |
| KitchenTimer.MINUTE = KitchenTimer.SECOND * 60; | |
| KitchenTimer.create = function(minutes) { | |
| var timer = new KitchenTimer(); | |
| timer.set(minutes); | |
| return timer; | |
| } | |
| KitchenTimer.prototype.set = function(minutes) { | |
| var ms = minutes * KitchenTimer.MINUTE; | |
| this._timeout = setTimeout(this._ring.bind(this), ms); | |
| this._interval = setInterval(this._tick.bind(this), KitchenTimer.SECOND); | |
| this._minutes = minutes; | |
| this._start = new Date(); | |
| }; | |
| KitchenTimer.prototype._tick = function() { | |
| this.emit('tick'); | |
| }; | |
| KitchenTimer.prototype._ring = function() { | |
| this.emit('ring'); | |
| this.reset(); | |
| } | |
| KitchenTimer.prototype.reset = function() { | |
| clearTimeout(this._timeout); | |
| clearInterval(this._interval); | |
| oop.reset(this); | |
| } | |
| KitchenTimer.prototype.remaining = function() { | |
| var ms = (new Date() - this._start); | |
| var minutes = ms / KitchenTimer.MINUTE; | |
| return minutes; | |
| }; |
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