Refactors most controllers and directives into classes for more organized and maintainable code

app/assets/javascripts/directives/functional/autofocus.js

@@ -0,0 +1,16 @@
+/* @ngInject */
+export function autofocus($timeout) {
+  return {
+    restrict: 'A',
+    scope: {
+      shouldFocus: '='
+    },
+    link: function($scope, $element) {
+      $timeout(function() {
+        if ($scope.shouldFocus) {
+          $element[0].focus();
+        }
+      });
+    }
+  };
+}