Prevent memory leaks in AnimationUpdater (#216)

AnimationUpdate removes finished references to prevent memory leaks.

README.md

@@ -33,3 +33,10 @@ gauge.set(1250); // set actual value
 ```
 
 For an interactive demo and a list of all supported options please refer to the [project's homepage](http://bernii.github.com/gauge.js).
+
+## Wrappers
+
+gauge.js can be wrapped to a number of frameworks. Here are some examples:
+
+* **Vue**
+  * [vgauge](https://github.com/amroessam/vgauge)

bower.json

@@ -1,6 +1,6 @@
 {
   "name": "gauge.js",
-  "version": "1.3.6",
+  "version": "1.3.7",
   "main": [
     "dist/gauge.js",
     "dist/gauge.min.js",

dist/gauge.coffee

@@ -386,6 +386,7 @@ class Gauge extends BaseGauge
 		@value = Math.max(Math.min(value[value.length - 1], @maxValue), @minValue) # TODO: Span maybe??
 
 		# Force first .set()
+		AnimationUpdater.add(@)
 		AnimationUpdater.run(@forceUpdate)
 		@forceUpdate = false
 
@@ -624,6 +625,7 @@ class BaseDonut extends BaseGauge
 			else
 				@minValue = @value
 
+		AnimationUpdater.add(@)
 		AnimationUpdater.run(@forceUpdate)
 		@forceUpdate = false
 
@@ -683,7 +685,8 @@ window.AnimationUpdater =
 			AnimationUpdater.elements.push(elem)
 
 	add: (object) ->
-		AnimationUpdater.elements.push(object)
+		if object not in AnimationUpdater.elements
+			AnimationUpdater.elements.push object
 
 	run: (force = false) ->
 		# 'force' can take three values, for which these paths should be taken
@@ -693,9 +696,17 @@ window.AnimationUpdater =
 		isCallback = isFinite(parseFloat(force))
 		if isCallback or force is true
 			finished = true
-			for elem in AnimationUpdater.elements
+			toRemove = []
+			for elem, k in AnimationUpdater.elements
 				if elem.update(force is true)
 					finished = false
+				else
+					toRemove.push k
+
+			# Remove finished elements
+			for k in toRemove by -1
+				AnimationUpdater.elements.splice k, 1
+
 			AnimationUpdater.animId = if finished then null else requestAnimationFrame(AnimationUpdater.run)
 		else if force is false
 			if AnimationUpdater.animId is not null

index.html

@@ -276,6 +276,14 @@ <h2>Supported browsers</h2>
 
 <h2>Changes</h2>
 
+
+<h3 id="v1.3.7">Version 1.3.7 (15.06.2019)</h3>
+<p>
+<ul>
+<li>AnimationUpdater now removes references finished rendering to prevent memory leaks.</li>
+</ul>
+</p>
+
 <h3 id="v1.3.6">Version 1.3.6 (28.11.2017)</h3>
 <p>
 <ul>

package.json

@@ -1,6 +1,6 @@
 {
   "name": "gaugeJS",
-  "version": "1.3.6",
+  "version": "1.3.7",
   "description": "100% native and cool looking animated JavaScript/CoffeeScript gauge",
   "main": "dist/gauge.js",
   "repository": {