fix(dropdown): do not close on $locationChangeSuccess

Behaviour only triggers when `auto-close=disabled`

Closes #3683, #3704

src/dropdown/docs/readme.md

@@ -10,5 +10,4 @@ By default the dropdown will automatically close if any of its elements is click
 
   * `always` - (Default) automatically closes the dropdown when any of its elements is clicked.
   * `outsideClick` - closes the dropdown automatically only when the user clicks any element outside the dropdown.
-  * `disabled` - disables the auto close. You can then control the open/close status of the dropdown manually, by using `is-open`. Please notice that the dropdown will still close if the toggle is clicked, the `esc` key is pressed or another dropdown is open.
-
+  * `disabled` - disables the auto close. You can then control the open/close status of the dropdown manually, by using `is-open`. Please notice that the dropdown will still close if the toggle is clicked, the `esc` key is pressed or another dropdown is open. The dropdown will no longer close on `$locationChangeSuccess` events.

src/dropdown/dropdown.js

@@ -144,7 +144,9 @@ angular.module('ui.bootstrap.dropdown', ['ui.bootstrap.position'])
   });
 
   $scope.$on('$locationChangeSuccess', function() {
-    scope.isOpen = false;
+    if (scope.getAutoClose() !== 'disabled') {
+      scope.isOpen = false;
+    }
   });
 
   $scope.$on('$destroy', function() {

src/dropdown/test/dropdown.spec.js

@@ -432,5 +432,15 @@ describe('dropdownToggle', function() {
       expect(elm1.hasClass(dropdownConfig.openClass)).toBe(false);
       expect(elm2.hasClass(dropdownConfig.openClass)).toBe(true);
     });
+
+    it('should not close on $locationChangeSuccess if auto-close="disabled"', function () {
+      var elm1 = dropdown('disabled');
+      expect(elm1.hasClass(dropdownConfig.openClass)).toBe(false);
+      clickDropdownToggle(elm1);
+      expect(elm1.hasClass(dropdownConfig.openClass)).toBe(true);
+      $rootScope.$broadcast('$locationChangeSuccess');
+      $rootScope.$digest();
+      expect(elm1.hasClass(dropdownConfig.openClass)).toBe(true);
+    });
   });
 });