www.aleph1.co.uk Git - yaffs-website/blob - node_modules/are-we-there-yet/tracker.js

   1 'use strict'
   2 var util = require('util')
   3 var TrackerBase = require('./tracker-base.js')
   4
   5 var Tracker = module.exports = function (name, todo) {
   6   TrackerBase.call(this, name)
   7   this.workDone = 0
   8   this.workTodo = todo || 0
   9 }
  10 util.inherits(Tracker, TrackerBase)
  11
  12 Tracker.prototype.completed = function () {
  13   return this.workTodo === 0 ? 0 : this.workDone / this.workTodo
  14 }
  15
  16 Tracker.prototype.addWork = function (work) {
  17   this.workTodo += work
  18   this.emit('change', this.name, this.completed(), this)
  19 }
  20
  21 Tracker.prototype.completeWork = function (work) {
  22   this.workDone += work
  23   if (this.workDone > this.workTodo) this.workDone = this.workTodo
  24   this.emit('change', this.name, this.completed(), this)
  25 }
  26
  27 Tracker.prototype.finish = function () {
  28   this.workTodo = this.workDone = 1
  29   this.emit('change', this.name, 1, this)
  30 }