Remove strings from the privacy template

Instead we use a method on the scope to determine the current
permission level.

h/static/scripts/directives/privacy.coffee

@@ -14,6 +14,8 @@ privacy = ['$window', ($window) ->
         return level
     undefined
 
+  isPublic  = (level) -> level == VISIBILITY_PUBLIC
+
   # Detection is needed because we run often as a third party widget and
   # third party storage blocking often blocks cookies and local storage
   # https://github.com/Modernizr/Modernizr/blob/master/feature-detects/storage/localstorage.js
@@ -46,7 +48,7 @@ privacy = ['$window', ($window) ->
 
       permissions = controller.$modelValue
 
-      if privacy.name is VISIBILITY_PUBLIC
+      if isPublic(privacy.name)
           permissions.read = ['group:__world__']
       else
           permissions.read = [attrs.user]
@@ -70,6 +72,8 @@ privacy = ['$window', ($window) ->
       storage.setItem VISIBILITY_KEY, level.name
       controller.$setViewValue level
       controller.$render()
+    scope.isPublic = isPublic
+
   require: '?ngModel'
   restrict: 'E'
   scope: {}

h/templates/client/privacy.html

@@ -3,15 +3,15 @@
         role="button"
         class="dropdown-toggle"
         data-toggle="dropdown">
-        <i class="small" ng-class="{'h-icon-earth': level.name == 'public',
-                                    'h-icon-locked': level.name == 'private'}"></i>
+        <i class="small" ng-class="{'h-icon-earth': isPublic(level.name),
+                                    'h-icon-locked': !isPublic(level.name)}"></i>
         {{level.text}}
         <i class="h-icon-triangle"></i>
   </span>
   <ul class="dropdown-menu" role="menu">
     <li ng-repeat="level in levels" ng-click="setLevel(level)">
-      <i class="small" ng-class="{'h-icon-earth': level.name == 'public',
-                                  'h-icon-locked': level.name == 'private'}"></i>
+      <i class="small" ng-class="{'h-icon-earth': isPublic(level.name),
+                                  'h-icon-locked': !isPublic(level.name)}"></i>
       {{level.text}}
     </li>
   </ul>