Ngshow On $parent Variable?

I've got something running in the $rootScope to set an application-wide value for userLoggedIn: mod.run(function($rootScope) { $rootScope.userLoggedIn = false; $rootScope.

Solution 1:

The answer was unbelievably simple, and leveraged a comment too. I did in fact just need the view to use $root.userLoggedIn, but I also needed to leverage the $apply:

mod.run(function($rootScope) {
    $rootScope.userLoggedIn = false;

    $rootScope.$on('loggedIn', function(event, args) {
        $rootScope.$apply(function() {
            $rootScope.userLoggedIn = true;
        });
    });
});

Solution 2:

scope: { userLoggedIn: '@' }

Your directive expects the HTML attribute userLoggedIn, but there is none in your HTML. Also keep in mind that @ always resolves to a String.

The second and more important point is that only your root-scope directive operates in the isolate scope, but not ng-show. In other words: Using root-scope has no effect whatsoever. Based only on the code you presented, your example works as expected.