fix(buttons): double toggle on spacebar

Fixes #4474
Closes #4630

src/buttons/buttons.js

@@ -44,7 +44,7 @@ angular.module('ui.bootstrap.buttons', [])
   };
 })
 
-.directive('uibBtnCheckbox', ['$document', function($document) {
+.directive('uibBtnCheckbox', function() {
   return {
     require: ['uibBtnCheckbox', 'ngModel'],
     controller: 'UibButtonsController',
@@ -82,21 +82,9 @@ angular.module('ui.bootstrap.buttons', [])
           ngModelCtrl.$render();
         });
       });
-
-      //accessibility
-      element.on('keypress', function(e) {
-        if (attrs.disabled || e.which !== 32 || $document[0].activeElement !== element[0]) {
-          return;
-        }
-
-        scope.$apply(function() {
-          ngModelCtrl.$setViewValue(element.hasClass(buttonsCtrl.activeClass) ? getFalseValue() : getTrueValue());
-          ngModelCtrl.$render();
-        });
-      });
     }
   };
-}]);
+});
 
 /* Deprecated buttons below */
 

src/buttons/test/buttons.spec.js

@@ -74,27 +74,6 @@ describe('buttons', function() {
       expect(btn).not.toHaveClass('active');
     });
 
-    it('should toggle custom model values on spacebar if focused', function() {
-      $scope.model = 0;
-      var btn = compileButton('<button ng-model="model" uib-btn-checkbox btn-checkbox-true="1" btn-checkbox-false="0">click</button>', $scope);
-      $('body').append(btn);
-      var e = $.Event('keypress');
-      e.which = 32;
-
-      btn[0].focus();
-      btn.trigger(e);
-      $scope.$digest();
-      expect($scope.model).toEqual(1);
-      expect(btn).toHaveClass('active');
-
-      btn.trigger(e);
-      $scope.$digest();
-      expect($scope.model).toEqual(0);
-      expect(btn).not.toHaveClass('active');
-
-      btn.remove();
-    });
-
     it('should monitor true / false value changes - issue 666', function() {
 
       $scope.model = 1;
@@ -116,7 +95,6 @@ describe('buttons', function() {
       $scope.model = 1;
       $scope.falseVal = 0;
       var btn = compileButton('<button disabled ng-model="model" uib-btn-checkbox btn-checkbox-true="falseVal">click</button>', $scope);
-      $('body').append(btn);
 
       expect(btn).not.toHaveClass('active');
       expect($scope.model).toEqual(1);
@@ -128,19 +106,6 @@ describe('buttons', function() {
       $scope.$digest();
 
       expect(btn).not.toHaveClass('active');
-
-      btn[0].focus();
-      var e = $.Event('keypress');
-      e.which = 32;
-      btn.trigger(e);
-
-      expect(btn).not.toHaveClass('active');
-
-      $scope.$digest();
-
-      expect(btn).not.toHaveClass('active');
-
-      btn.remove();
     });
 
     describe('setting buttonConfig', function() {