Built motion from commit 6a09e18b.|2.6.11

[motion2.git] / legacy-libs / are-we-there-yet / tracker.js

diff --git a/legacy-libs/are-we-there-yet/tracker.js b/legacy-libs/are-we-there-yet/tracker.js
new file mode 100644 (file)
index 0000000..68c2339
--- /dev/null
+++ b/legacy-libs/are-we-there-yet/tracker.js
@@ -0,0 +1,30 @@
+'use strict'
+var util = require('util')
+var TrackerBase = require('./tracker-base.js')
+
+var Tracker = module.exports = function (name, todo) {
+  TrackerBase.call(this, name)
+  this.workDone = 0
+  this.workTodo = todo || 0
+}
+util.inherits(Tracker, TrackerBase)
+
+Tracker.prototype.completed = function () {
+  return this.workTodo === 0 ? 0 : this.workDone / this.workTodo
+}
+
+Tracker.prototype.addWork = function (work) {
+  this.workTodo += work
+  this.emit('change', this.name, this.completed(), this)
+}
+
+Tracker.prototype.completeWork = function (work) {
+  this.workDone += work
+  if (this.workDone > this.workTodo) this.workDone = this.workTodo
+  this.emit('change', this.name, this.completed(), this)
+}
+
+Tracker.prototype.finish = function () {
+  this.workTodo = this.workDone = 1
+  this.emit('change', this.name, 1, this)
+}