Front-end feature flags

h/static/scripts/app.coffee

@@ -78,6 +78,11 @@ setupStreamer = [
     $http.defaults.headers.common['X-Client-Id'] = clientId
 ]
 
+angular.module('h.config', [])
+.provider('identity', require('./identity'))
+.provider('session', require('./session'))
+
+
 module.exports = angular.module('h', [
   'angulartics'
   'angulartics.google.analytics'
@@ -88,6 +93,7 @@ module.exports = angular.module('h', [
   'ngSanitize'
   'ngTagsInput'
   'toastr'
+  'h.config'
 ])
 
 .controller('AppController', require('./app-controller'))
@@ -118,9 +124,6 @@ module.exports = angular.module('h', [
 .filter('persona', require('./filter/persona'))
 .filter('urlencode', require('./filter/urlencode'))
 
-.provider('identity', require('./identity'))
-.provider('session', require('./session'))
-
 .service('annotator', -> new Annotator(angular.element('<div>')))
 .service('annotationMapper', require('./annotation-mapper'))
 .service('annotationUI', require('./annotation-ui'))

h/static/scripts/config/accounts.coffee

@@ -11,15 +11,18 @@ SESSION_ACTIONS = [
 ]
 
 
-configure = [
-  '$httpProvider', 'identityProvider', 'sessionProvider'
-  ($httpProvider,   identityProvider,   sessionProvider) ->
+module.exports = [
+  '$httpProvider', '$provide', 'identityProvider', 'sessionProvider'
+  ($httpProvider,   $provide,   identityProvider,   sessionProvider) ->
     # Pending authentication check
     authCheck = null
 
     # Use the Pyramid XSRF header name
     $httpProvider.defaults.xsrfHeaderName = 'X-CSRF-Token'
 
+    # Provide an XSRF token for the session provider
+    $provide.constant('xsrf', token: null)
+
     identityProvider.checkAuthentication = [
       '$q', 'session',
       ($q,   session) ->
@@ -70,8 +73,3 @@ configure = [
           __formid__: action
         withCredentials: true
 ]
-
-
-angular.module('h')
-.value('xsrf', token: null)
-.config(configure)

h/static/scripts/config/features.coffee

+FEATURES = {
+  accounts: """{{ feature('accounts') | json }}""",
+  notification: """{{ feature('notification') | json }}""",
+  streamer: """{{ feature('streamer') | json }}"""
+}
+
+
+feature = (name) ->
+  value = FEATURES[name]
+  if value?
+    return !!value
+  else
+    throw new Error("unknown feature: #{name}")
+
+
+config = (fn) ->
+  module.exports.config(fn)
+
+
+angular = require('angular')
+module.exports = angular.module('h.config').value('feature', feature)
+
+if feature('accounts')
+  config(require('./accounts'))