Add a `getSelectionBarColor` options to dynamically change the selection bar color.

README.md

@@ -34,7 +34,7 @@ Make sure the report is accompanied by a reproducible demo. The ideal demo is cr
 
 ## Common issues
 ### My slider is not rendered correctly on load
-If the slider's parent element is not visible during slider initialization, the slider can't know when its parent becomes visible. 
+If the slider's parent element is not visible during slider initialization, the slider can't know when its parent becomes visible.
 For instance, when displaying a slider inside an element which visibility is toggled using ng-show, you need to send an event to force it to redraw when you set your ng-show to true.
 
 Here's an example of `refreshSlider` method that you should call whenever the slider becomes visible.
@@ -209,6 +209,8 @@ $scope.slider = {
 
 **showSelectionBar** - _Boolean (defaults to false)_: Set to true to always show the selection bar.
 
+**getSelectionBarColor** - _Function (defaults to null)_: Function that returns the current color of the selection bar.
+
 **hideLimitLabels** - _Boolean (defaults to false)_: Set to true to hide min / max labels
 
 **readOnly** - _Boolean (defaults to false)_: Set to true to make the slider read-only.

demo/demo.js

@@ -25,6 +25,25 @@ app.controller('MainCtrl', function($scope, $rootScope, $timeout, $modal) {
     }
   };
 
+
+  //Slider with selection bar
+  $scope.color_slider_bar = {
+    value: 12,
+    options: {
+      showSelectionBar: true,
+      getSelectionBarColor: function() {
+        var currentValue = $scope.color_slider_bar.value;
+        if (currentValue <= 3)
+          return 'red';
+        if (currentValue <= 6)
+          return 'orange';
+        if (currentValue <= 9)
+          return 'yellow';
+        return '#2AE02A';
+      }
+    }
+  };
+
   //Slider config with floor, ceil and step
   $scope.slider_floor_ceil = {
     value: 12,

demo/index.html

@@ -44,6 +44,14 @@
     ></rzslider>
   </article>
 
+  <article>
+    <h2>Slider with dynamic selection bar colors</h2>
+    <rzslider
+      rz-slider-model="color_slider_bar.value"
+      rz-slider-options="color_slider_bar.options"
+    ></rzslider>
+  </article>
+
   <article>
     <h2>Slider with custom floor/ceil/step</h2>
     <rzslider

dist/rzslider.js

@@ -50,6 +50,7 @@
       showTicksValues: false,
       ticksValuesTooltip: null,
       vertical: false,
+      selectionBarColor: null,
       scale: 1,
       onStart: null,
       onChange: null,
@@ -432,6 +433,7 @@
               break;
             case 1:
               this.selBar = jElem;
+              this.selBarChild = this.selBar.children('rz-selection');
               break;
             case 2:
               this.minH = jElem;
@@ -863,6 +865,10 @@
       updateSelectionBar: function() {
         this.setDimension(this.selBar, Math.abs(this.maxH.rzsp - this.minH.rzsp) + this.handleHalfDim);
         this.setPosition(this.selBar, this.range ? this.minH.rzsp + this.handleHalfDim : 0);
+        if(this.options.getSelectionBarColor) {
+          var color = this.options.getSelectionBarColor();
+          this.selBarChild.css({backgroundColor: color});
+        }
       },
 
       /**

dist/rzslider.min.css

-/*! angularjs-slider - v2.1.0 - (c) Rafal Zajac <rzajac@gmail.com>, Valentin Hervieu <valentin@hervieu.me>, Jussi Saarivirta <jusasi@gmail.com>, Angelin Sirbu <angelin.sirbu@gmail.com>, https://github.com/rzajac/angularjs-slider.git - 2015-11-29 */
+/*! angularjs-slider - v2.1.0 - (c) Rafal Zajac <rzajac@gmail.com>, Valentin Hervieu <valentin@hervieu.me>, Jussi Saarivirta <jusasi@gmail.com>, Angelin Sirbu <angelin.sirbu@gmail.com>, https://github.com/rzajac/angularjs-slider.git - 2015-12-08 */
 rzslider{position:relative;display:inline-block;width:100%;height:4px;margin:35px 0 15px 0;vertical-align:middle;-webkit-user-select:none;-moz-user-select:none;-ms-user-select:none;user-select:none}rzslider[disabled]{cursor:not-allowed}rzslider[disabled] .rz-pointer{cursor:not-allowed;background-color:#d8e0f3}rzslider span{position:absolute;display:inline-block;white-space:nowrap}rzslider .rz-base{width:100%;height:100%;padding:0}rzslider .rz-bar-wrapper{left:0;z-index:1;width:100%;height:32px;padding-top:16px;margin-top:-16px;box-sizing:border-box}rzslider .rz-bar-wrapper.rz-draggable{cursor:move}rzslider .rz-bar{left:0;z-index:1;width:100%;height:4px;background:#d8e0f3;-webkit-border-radius:2px;-moz-border-radius:2px;border-radius:2px}rzslider .rz-bar.rz-selection{z-index:2;background:#0db9f0;-webkit-border-radius:2px;-moz-border-radius:2px;border-radius:2px}rzslider .rz-pointer{top:-14px;z-index:3;width:32px;height:32px;cursor:pointer;background-color:#0db9f0;-webkit-border-radius:16px;-moz-border-radius:16px;border-radius:16px}rzslider .rz-pointer:after{position:absolute;top:12px;left:12px;width:8px;height:8px;background:#fff;-webkit-border-radius:4px;-moz-border-radius:4px;border-radius:4px;content:''}rzslider .rz-pointer:hover:after{background-color:#fff}rzslider .rz-pointer.rz-active:after{background-color:#451aff}rzslider .rz-bubble{bottom:16px;padding:1px 3px;color:#55637d;cursor:default}rzslider .rz-bubble.rz-selection{top:16px}rzslider .rz-bubble.rz-limit{color:#55637d}rzslider .rz-ticks{position:absolute;top:-3px;left:0;z-index:1;display:-webkit-flex;display:-ms-flexbox;display:flex;width:100%;padding:0 11px;margin:0;list-style:none;box-sizing:border-box;-webkit-justify-content:space-between;-ms-flex-pack:justify;justify-content:space-between}rzslider .rz-ticks .tick{width:10px;height:10px;text-align:center;cursor:pointer;background:#d8e0f3;border-radius:50%}rzslider .rz-ticks .tick.selected{background:#0db9f0}rzslider .rz-ticks .tick .tick-value{position:absolute;top:-30px;transform:translate(-50%,0)}rzslider.vertical{position:relative;width:4px;height:100%;padding:0;margin:0 20px;vertical-align:baseline}rzslider.vertical .rz-base{width:100%;height:100%;padding:0}rzslider.vertical .rz-bar-wrapper{top:auto;left:0;width:32px;height:100%;padding:0 0 0 16px;margin:0 0 0 -16px}rzslider.vertical .rz-bar{bottom:0;left:auto;width:4px;height:100%}rzslider.vertical .rz-pointer{top:auto;bottom:0;left:-14px!important}rzslider.vertical .rz-bubble{bottom:0;left:16px!important;margin-left:3px}rzslider.vertical .rz-bubble.rz-selection{top:auto;left:16px!important}rzslider.vertical .rz-ticks{top:0;left:-3px;z-index:1;width:auto;height:100%;padding:11px 0;-webkit-flex-direction:column-reverse;-ms-flex-direction:column-reverse;flex-direction:column-reverse}rzslider.vertical .rz-ticks .tick{vertical-align:middle}rzslider.vertical .rz-ticks .tick .tick-value{top:auto;right:-30px;transform:translate(0,-28%)}
\ No newline at end of file

src/rzslider.js

@@ -50,6 +50,7 @@
       showTicksValues: false,
       ticksValuesTooltip: null,
       vertical: false,
+      selectionBarColor: null,
       scale: 1,
       onStart: null,
       onChange: null,
@@ -432,6 +433,7 @@
               break;
             case 1:
               this.selBar = jElem;
+              this.selBarChild = this.selBar.children('rz-selection');
               break;
             case 2:
               this.minH = jElem;
@@ -863,6 +865,10 @@
       updateSelectionBar: function() {
         this.setDimension(this.selBar, Math.abs(this.maxH.rzsp - this.minH.rzsp) + this.handleHalfDim);
         this.setPosition(this.selBar, this.range ? this.minH.rzsp + this.handleHalfDim : 0);
+        if(this.options.getSelectionBarColor) {
+          var color = this.options.getSelectionBarColor();
+          this.selBarChild.css({backgroundColor: color});
+        }
       },
 
       /**