Add a getSelectionBarColor options

CHANGELOG.md

@@ -1,3 +1,7 @@
+# 2.2.0 (not released yet)
+## Features
+- Add a `getSelectionBarColor` options to dynamically change the selection bar color (#197).
+
 # 2.1.0 (2015-11-29)
 ## Features
 - Add a `vertical` options to display vertical sliders (#185).

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(value) or Function(minVal, maxVal) (defaults to null)_: Function that returns the current color of the selection bar. If the returned color depends on a model value (either `rzScopeModel`or `'rzSliderHigh`), you should use the argument passed to the function. Indeed, when the function is called, there is no certainty that the model has already been updated.
+
 **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 +25,23 @@ app.controller('MainCtrl', function($scope, $rootScope, $timeout, $modal) {
     }
   };
 
+  //Slider with selection bar
+  $scope.color_slider_bar = {
+    value: 12,
+    options: {
+      showSelectionBar: true,
+      getSelectionBarColor: function(value) {
+        if (value <= 3)
+          return 'red';
+        if (value <= 6)
+          return 'orange';
+        if (value <= 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 @@ <h2>Slider with visible selection bar</h2>
     ></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;
@@ -472,8 +474,8 @@
         this.cmbLab.rzsp = 0;
       },
 
-      /** Update each elements style based on options
-       *
+      /**
+       * Update each elements style based on options
        */
       manageElementsStyle: function() {
 
@@ -662,9 +664,14 @@
         this.scope.ticks = [];
         for (var i = 0; i < ticksCount; i++) {
           var value = this.roundStep(this.minValue + i * this.step);
-          var tick = {
+          var tick =   {
             selected: this.isTickSelected(value)
           };
+          if (tick.selected && this.options.getSelectionBarColor) {
+            tick.style = {
+              'background-color': this.getSelectionBarColor()
+            };
+          }
           if (this.options.showTicksValues) {
             tick.value = this.getDisplayValue(value);
             if (this.options.ticksValuesTooltip) {
@@ -863,6 +870,22 @@
       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.getSelectionBarColor();
+          this.scope.barStyle = {
+            backgroundColor: color
+          };
+        }
+      },
+
+      /**
+       * Wrapper around the getSelectionBarColor of the user to pass to
+       * correct parameters
+       */
+      getSelectionBarColor: function() {
+        if (this.range)
+          return this.options.getSelectionBarColor(this.scope.rzSliderModel, this.scope.rzSliderHigh);
+        return this.options.getSelectionBarColor(this.scope.rzSliderModel);
       },
 
       /**
@@ -1305,7 +1328,7 @@
           valueChanged = true;
         }
 
-        if(valueChanged) {
+        if (valueChanged) {
           this.scope.$apply();
           this.callOnChange();
         }
@@ -1428,7 +1451,7 @@
   'use strict';
 
   $templateCache.put('rzSliderTpl.html',
-    "<span class=rz-bar-wrapper><span class=rz-bar></span></span> <span class=rz-bar-wrapper><span class=\"rz-bar rz-selection\"></span></span> <span class=rz-pointer></span> <span class=rz-pointer></span> <span class=\"rz-bubble rz-limit\"></span> <span class=\"rz-bubble rz-limit\"></span> <span class=rz-bubble></span> <span class=rz-bubble></span> <span class=rz-bubble></span><ul ng-show=showTicks class=rz-ticks><li ng-repeat=\"t in ticks\" class=tick ng-class=\"{selected: t.selected}\"><span ng-if=\"t.value != null && t.tooltip == null\" class=tick-value>{{ t.value }}</span> <span ng-if=\"t.value != null && t.tooltip != null\" class=tick-value uib-tooltip=\"{{ t.tooltip }}\" tooltip-placement={{t.tooltipPlacement}}>{{ t.value }}</span></li></ul>"
+    "<span class=rz-bar-wrapper><span class=rz-bar></span></span> <span class=rz-bar-wrapper><span class=\"rz-bar rz-selection\" ng-style=barStyle></span></span> <span class=rz-pointer></span> <span class=rz-pointer></span> <span class=\"rz-bubble rz-limit\"></span> <span class=\"rz-bubble rz-limit\"></span> <span class=rz-bubble></span> <span class=rz-bubble></span> <span class=rz-bubble></span><ul ng-show=showTicks class=rz-ticks><li ng-repeat=\"t in ticks track by $index\" class=tick ng-class=\"{selected: t.selected}\" ng-style=t.style><span ng-if=\"t.value != null && t.tooltip == null\" class=tick-value>{{ t.value }}</span> <span ng-if=\"t.value != null && t.tooltip != null\" class=tick-value uib-tooltip=\"{{ t.tooltip }}\" tooltip-placement={{t.tooltipPlacement}}>{{ t.value }}</span></li></ul>"
   );
 
 }]);

src/rzSliderTpl.html

@@ -1,5 +1,7 @@
 <span class="rz-bar-wrapper"><span class="rz-bar"></span></span> <!-- // 0 The slider bar -->
-<span class="rz-bar-wrapper"><span class="rz-bar rz-selection"></span></span> <!-- // 1 Highlight between two handles -->
+<span class="rz-bar-wrapper">
+  <span class="rz-bar rz-selection" ng-style="barStyle"></span>
+</span> <!-- // 1 Highlight between two handles -->
 <span class="rz-pointer"></span> <!-- // 2 Left slider handle -->
 <span class="rz-pointer"></span> <!-- // 3 Right slider handle -->
 <span class="rz-bubble rz-limit"></span> <!-- // 4 Floor label -->
@@ -8,7 +10,8 @@
 <span class="rz-bubble"></span> <!-- // 7 Label above right slider handle -->
 <span class="rz-bubble"></span> <!-- // 8 Range label when the slider handles are close ex. 15 - 17 -->
 <ul ng-show="showTicks" class="rz-ticks"> <!-- // 9 The ticks -->
-  <li ng-repeat="t in ticks" class="tick" ng-class="{selected: t.selected}">
+  <li ng-repeat="t in ticks track by $index" class="tick" ng-class="{selected: t.selected}"
+      ng-style="t.style">
     <span ng-if="t.value != null && t.tooltip == null" class="tick-value">{{ t.value }}</span>
     <span ng-if="t.value != null && t.tooltip != null" class="tick-value"
       uib-tooltip="{{ t.tooltip }}" tooltip-placement="{{t.tooltipPlacement}}">{{ t.value }}</span>

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;
@@ -472,8 +474,8 @@
         this.cmbLab.rzsp = 0;
       },
 
-      /** Update each elements style based on options
-       *
+      /**
+       * Update each elements style based on options
        */
       manageElementsStyle: function() {
 
@@ -662,9 +664,14 @@
         this.scope.ticks = [];
         for (var i = 0; i < ticksCount; i++) {
           var value = this.roundStep(this.minValue + i * this.step);
-          var tick = {
+          var tick =   {
             selected: this.isTickSelected(value)
           };
+          if (tick.selected && this.options.getSelectionBarColor) {
+            tick.style = {
+              'background-color': this.getSelectionBarColor()
+            };
+          }
           if (this.options.showTicksValues) {
             tick.value = this.getDisplayValue(value);
             if (this.options.ticksValuesTooltip) {
@@ -863,6 +870,22 @@
       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.getSelectionBarColor();
+          this.scope.barStyle = {
+            backgroundColor: color
+          };
+        }
+      },
+
+      /**
+       * Wrapper around the getSelectionBarColor of the user to pass to
+       * correct parameters
+       */
+      getSelectionBarColor: function() {
+        if (this.range)
+          return this.options.getSelectionBarColor(this.scope.rzSliderModel, this.scope.rzSliderHigh);
+        return this.options.getSelectionBarColor(this.scope.rzSliderModel);
       },
 
       /**
@@ -1305,7 +1328,7 @@
           valueChanged = true;
         }
 
-        if(valueChanged) {
+        if (valueChanged) {
           this.scope.$apply();
           this.callOnChange();
         }