AngularJS ngFocusOut directive - If you are new in angularJs you can use this by adding in your HTML tag. e.g. <input type = "text" ng-focus-out = "$scope.bool = true">

ngFocusOut.js

appStrapDirectives.directive('ngFocusOut', function( $timeout ) {
    return function( $scope, elem, attrs ) {
        $scope.$watch(attrs.ngFocusOut, function( newval ) {
            if ( newval ) {
                $timeout(function() {
                    elem[0].focusout();
                }, 0, false);
            }
        });
    };
});

you could use the built-in ng-blur instead:

ng-focus="focused=true" ng-blur="focused=false"