TestUser013,
Можно.
$scope.focusInput= function($event )
{
angular.element($event.target).parent().addClass('focused');
};
$scope.blurInput= function($event )
{
angular.element($event.target).parent().removeClass('focused');
};
<div class="test">
<label for="name">name</label>
<input type="text" name="name" ng-model="item.name" ng-focus="focusInput($event)" ng-blur="blurInput($event)">
</div>