feat(progressbar): allow dynamic update to max

- Adds ability to dynamically change max value

src/progressbar/progressbar.js

@@ -10,7 +10,7 @@ angular.module('ui.bootstrap.progressbar', [])
         animate = angular.isDefined($attrs.animate) ? $scope.$parent.$eval($attrs.animate) : progressConfig.animate;
 
     this.bars = [];
-    $scope.max = angular.isDefined($attrs.max) ? $scope.$parent.$eval($attrs.max) : progressConfig.max;
+    $scope.max = angular.isDefined($scope.max) ? $scope.max : progressConfig.max;
 
     this.addBar = function(bar, element) {
         if ( !animate ) {
@@ -54,6 +54,7 @@ angular.module('ui.bootstrap.progressbar', [])
         require: '^progress',
         scope: {
             value: '=',
+            max: '=?',
             type: '@'
         },
         templateUrl: 'template/progressbar/bar.html',
@@ -71,11 +72,12 @@ angular.module('ui.bootstrap.progressbar', [])
         controller: 'ProgressController',
         scope: {
             value: '=',
+            max: '=?',
             type: '@'
         },
         templateUrl: 'template/progressbar/progressbar.html',
         link: function(scope, element, attrs, progressCtrl) {
             progressCtrl.addBar(scope, angular.element(element.children()[0]));
         }
     };
-});
+});

src/progressbar/test/progressbar.spec.js

@@ -116,6 +116,13 @@ describe('progressbar directive', function () {
     it('transcludes "bar" text', function() {
       expect(getBar(0).text()).toBe('22/200');
     });
+
+    it('adjusts the valuemax when it changes', function() {
+      expect(getBar(0).attr('aria-valuemax')).toBe('200');
+      $rootScope.max = 300;
+      $rootScope.$digest();
+      expect(getBar(0).attr('aria-valuemax')).toBe('300');
+    });
   });
 
   describe('"type" attribute', function () {
@@ -209,4 +216,4 @@ describe('progressbar directive', function () {
       expect(getBar(0)).not.toHaveClass(BAR_CLASS + '-warning');
     });
   });
-});
+});