fix(datepicker): fix popup updateOn: default support

- Fix support for ng-model-options with `updateOn: blur`

Closes #5529

Author: B8li

src/datepicker/datepicker.js

@@ -836,6 +836,11 @@ function($scope, $element, $attrs, $compile, $log, $parse, $window, $document, $
     popupEl = angular.element('<div uib-datepicker-popup-wrap><div uib-datepicker></div></div>');
     $scope.ngModelOptions = angular.copy(ngModelOptions);
     $scope.ngModelOptions.timezone = null;
+    if ($scope.ngModelOptions.updateOnDefault === true) {
+      $scope.ngModelOptions.updateOn = $scope.ngModelOptions.updateOn ?
+        $scope.ngModelOptions.updateOn + ' default' : 'default';
+    }
+
     popupEl.attr({
       'ng-model': 'date',
       'ng-model-options': 'ngModelOptions',

src/datepicker/test/datepicker.spec.js

@@ -3645,6 +3645,30 @@ describe('datepicker', function() {
         });
       });
 
+      describe('works with ngModelOptions updateOn : "default"', function() {
+        var $timeout, wrapElement;
+
+        beforeEach(inject(function(_$document_, _$sniffer_, _$timeout_) {
+          $document = _$document_;
+          $timeout = _$timeout_;
+          $rootScope.isopen = true;
+          $rootScope.date = new Date('2010-09-30T10:00:00.000Z');
+          wrapElement = $compile('<div><input ng-model="date" ' +
+            'ng-model-options="{ updateOn: \'default\' }" ' +
+            'uib-datepicker-popup is-open="isopen"><div>')($rootScope);
+          $rootScope.$digest();
+          assignElements(wrapElement);
+        }));
+
+        it('should close the popup and update the input when a day is clicked', function() {
+          clickOption(17);
+          assignElements(wrapElement);
+          expect(dropdownEl.length).toBe(0);
+          expect(inputEl.val()).toBe('2010-09-15');
+          expect($rootScope.date).toEqual(new Date('2010-09-15T10:00:00.000Z'));
+        });
+      });
+
       describe('attribute `datepickerOptions`', function() {
         describe('show-weeks', function() {
           beforeEach(function() {