Save user settings to the database and embed them to the template for fast access.

bower.json

@@ -13,7 +13,6 @@
     "oboe": "~1.15.1",
     "fa-borderlayout": "~0.3.1-beta2",
     "Snap.svg": "~0.3.0",
-    "angular-localForage": "~0.2.6",
     "ng-table": "git://github.com/esvit/ng-table.git#bd9ec42172389257fcd312330013302b2696ac2a",
     "jquery.terminal": "~0.8.7",
     "stf-site": "~0.4.1",

lib/db/api.js

@@ -25,6 +25,7 @@ dbapi.saveUserAfterLogin = function(user) {
         , lastLoggedInAt: r.now()
         , createdAt: r.now()
         , forwards: []
+        , settings: {}
         }))
       }
       return stats
@@ -35,6 +36,18 @@ dbapi.loadUser = function(email) {
   return db.run(r.table('users').get(email))
 }
 
+dbapi.updateUserSettings = function(email, changes) {
+  return db.run(r.table('users').get(email).update({
+    settings: changes
+  }))
+}
+
+dbapi.resetUserSettings = function(email) {
+  return db.run(r.table('users').get(email).update({
+    settings: r.literal({})
+  }))
+}
+
 dbapi.addUserForward = function(email, forward) {
   var devicePort = forward.devicePort
   return db.run(r.table('users').get(email).update({

lib/roles/websocket.js

@@ -256,6 +256,13 @@ module.exports = function(options) {
 
     new Promise(function(resolve) {
       socket.on('disconnect', resolve)
+        // Settings
+        .on('user.settings.update', function(data) {
+          dbapi.updateUserSettings(user.email, data)
+        })
+        .on('user.settings.reset', function() {
+          dbapi.resetUserSettings(user.email)
+        })
         // Touch events
         .on('input.touchDown', createTouchHandler(wire.TouchDownMessage))
         .on('input.touchMove', createTouchHandler(wire.TouchMoveMessage))

res/app/components/stf/settings/index.js

@@ -1,17 +1,2 @@
-require('localforage')
-require('angular-localForage')
-
-module.exports = angular.module('stf/settings', [
-  'LocalForageModule'
-])
-  .config(['$localForageProvider', function ($localForageProvider) {
-    $localForageProvider.config({
-      driver: 'localStorageWrapper',
-      name: 'stf-v0',
-      version: 1.0,
-      storeName: 'settings',
-      description: 'STF Local Settings'
-    })
-
-  }])
+module.exports = angular.module('stf/settings', [])
   .factory('SettingsService', require('./settings-service'))

res/app/components/stf/settings/settings-service.js

@@ -1,61 +1,103 @@
-var Promise = require('bluebird')
+var _ = require('lodash')
 
-module.exports = function SettingsServiceFactory($localForage) {
+module.exports = function SettingsServiceFactory(
+  $rootScope
+, UserService
+, socket
+) {
   var SettingsService = {}
 
-  var loadedInMemory = false
+  var settings = UserService.currentUser.settings || {}
+    , syncListeners = []
 
-  var memoryData = Object.create(null)
+  function createListener(object, options, monitor) {
+    var source = options.source || options.target
+    return function() {
+      var value = object[options.target] = (source in settings)
+        ? settings[source]
+        : options.defaultValue
 
-  function setItemMemory(key, value) {
-    memoryData[key] = value
-  }
-
-  function getItemMemory(key) {
-    return memoryData[key]
-  }
-
-  SettingsService.setItem = function (key, value) {
-    setItemMemory(key, value)
-    return $localForage.setItem(key, value)
-  }
-
-  function loadAllItems() {
-    if (loadedInMemory) {
-      return Promise.resolve()
+      if (monitor) {
+        monitor(value)
+      }
     }
+  }
 
-    return $localForage.getKeys().then(function (keys) {
-      return Promise.all(keys.map(function (key) {
-        return $localForage.getItem(key).then(setItemMemory.bind(null, key))
-      }))
-    }).then(function () {
-      loadedInMemory = true
+  function applyDelta(delta) {
+    $rootScope.safeApply(function() {
+      _.merge(settings, delta, function(a, b) {
+        // New Arrays overwrite old Arrays
+        return _.isArray(b) ? b : undefined
+      })
+
+      for (var i = 0, l = syncListeners.length; i < l; ++i) {
+        syncListeners[i]()
+      }
     })
   }
 
-  SettingsService.getItem = function (key) {
-    return loadAllItems().then(function () {
-      return getItemMemory(key)
-    })
+  SettingsService.update = function(delta) {
+    socket.emit('user.settings.update', delta)
+    applyDelta(delta)
   }
 
-  SettingsService.bind = function () {
-
-
-
-    return $localForage.bind.apply($localForage, arguments)
+  SettingsService.set = function(key, value) {
+    var delta = Object.create(null)
+    delta[key] = value
+    SettingsService.update(delta)
   }
 
-  SettingsService.driver = function () {
-    return $localForage.driver.apply($localForage, arguments)
-      + ' with memory cache'
+  SettingsService.reset = function() {
+    socket.emit('user.settings.reset')
+    settings = {}
+    applyDelta(null)
   }
 
-  SettingsService.clear = function () {
-    memoryData = Object.create(null)
-    return $localForage.clear.apply($localForage, arguments)
+  SettingsService.bind = function(scope, options) {
+    var source = options.source || options.target
+
+    scope.$watch(
+      options.target
+    , function(newValue, oldValue) {
+        // Skip initial value.
+        if (newValue !== oldValue) {
+          var delta = Object.create(null)
+          delta[source] = newValue
+          SettingsService.update(delta)
+        }
+      }
+    , true
+    )
+
+    scope.$watch(
+      function() {
+        return settings[source]
+      }
+    , function(newValue, oldValue) {
+        // Skip initial value. The new value might not be different if
+        // settings were reset, for example. In that case we call back
+        // to the default value.
+        if (newValue !== oldValue) {
+          scope[options.target] = newValue || options.defaultValue
+        }
+      }
+    , true
+    )
+
+    scope[options.target] = settings[source] || options.defaultValue
   }
 
+  SettingsService.sync = function(object, options, monitor) {
+    var listener = createListener(object, options, monitor)
+    listener() // Initialize
+    return syncListeners.push(listener) - 1
+  }
+
+  SettingsService.unsync = function(id) {
+    syncListeners.splice(id, 1)
+  }
+
+  socket.on('user.settings.update', applyDelta)
+
   return SettingsService
 }

res/app/layout/layout-controller.js

@@ -1,3 +1,3 @@
 module.exports = function LayoutCtrl(LanguageService) {
-  LanguageService.init()
+  LanguageService.updateLanguage()
 }

res/app/menu/menu-controller.js

@@ -1,8 +1,13 @@
-module.exports = function MenuCtrl($scope, $rootScope, SettingsService, $location, ExternalUrlModalService) {
-  $rootScope.platform = 'native'
+module.exports = function MenuCtrl(
+  $scope
+, $rootScope
+, SettingsService
+, $location
+, ExternalUrlModalService
+) {
   SettingsService.bind($rootScope, {
-    key: 'platform',
-    storeName: 'Platform'
+    target: 'platform'
+  , defaultValue: 'native'
   })
 
   $scope.$on('$routeChangeSuccess', function () {

res/app/settings/language/language-controller.js

@@ -1,20 +1,8 @@
 module.exports = function ($scope, LanguageService, SettingsService) {
-//  SettingsService.sync($scope, 'Language', {
-//    language: LanguageService.detectedLanguage
-//  })
-//  SettingsService.bind($scope, {
-//    key: 'language',
-//    defaultValue: LanguageService.selectedLanguage
-//  })
-
-  LanguageService.getSelectedLanguage().then(function (data) {
-    $scope.language = data
-  })
-
-  $scope.$watch('language', function (newValue, oldValue) {
-    if (newValue !== oldValue) {
-      LanguageService.setSelectedLanguage(newValue)
-    }
+  SettingsService.bind($scope, {
+    target: 'language'
+  , source: LanguageService.settingKey
+  , defaultValue: LanguageService.detectedLanguage
   })
 
   $scope.supportedLanguages = LanguageService.supportedLanguages

res/app/settings/language/language-service.js

@@ -1,67 +1,45 @@
-var _ = require('lodash')
 var supportedLanguages = require('./../../../common/lang/langs.json')
 
-module.exports = function (SettingsService, $q, gettextCatalog) {
+module.exports = function LanguageServiceFactory(
+  SettingsService
+, gettextCatalog
+) {
   var LanguageService = {}
 
+  function detectLanguage() {
+    return (navigator.language || navigator.userLanguage || 'en-US')
+      .substring(0, 2)
+  }
+
+  function isSupported(lang) {
+    return !!supportedLanguages[lang]
+  }
+
+  function onlySupported(lang, defaultValue) {
+    return isSupported(lang) ? lang : defaultValue
+  }
+
+  LanguageService.settingKey = 'selectedLanguage'
   LanguageService.supportedLanguages = supportedLanguages
+  LanguageService.defaultLanguage = 'en'
+  LanguageService.detectedLanguage =
+    onlySupported(detectLanguage(), LanguageService.defaultLanguage)
 
-  var browserLocale = navigator.language || navigator.userLanguage || 'en-US'
-  var browserLanguage = browserLocale.substring(0, 2)
-  var isLanguageMatched = _.some(supportedLanguages, function (value, key) {
-    return key === browserLanguage
-  })
-  var detectedLanguage = isLanguageMatched ? browserLanguage : 'en'
-
-  var defaultLanguage = 'ja'
-  LanguageService.detectedLanguage = defaultLanguage
-  LanguageService.selectedLanguage = null
-
-  // TODO: Can't this be refactored to something like this?
-  //  SettingsService.sync(LanguageService.selectedLanguage, 'Language', {
-  //    selected: LanguageService.detectedLanguage
-  //  })
-
-  LanguageService.getSelectedLanguage = function () {
-    var deferred = $q.defer()
-    if (LanguageService.selectedLanguage) {
-      deferred.resolve(LanguageService.selectedLanguage)
-    } else {
-      SettingsService.getItem('Language.selected').then(function (data) {
-        if (data) {
-          deferred.resolve(data)
-        } else {
-          LanguageService.setSelectedLanguage(LanguageService.detectedLanguage)
-            .then(function () {
-              deferred.resolve(LanguageService.detectedLanguage)
-            })
-        }
-      })
+  SettingsService.sync(
+    LanguageService
+  , {
+      target: LanguageService.settingKey
+    , source: LanguageService.settingKey
+    , defaultValue: LanguageService.detectedLanguage
     }
-    return deferred.promise
+  , updateLanguage
+  )
+
+  function updateLanguage() {
+    gettextCatalog.currentLanguage = LanguageService.selectedLanguage
   }
 
-  // TODO: this is to prevent initial text flashing from ja
-  gettextCatalog.currentLanguage = LanguageService.detectedLanguage
-
-  // Initialize gettextCatalog
-
-  LanguageService.init = function () {
-    LanguageService.getSelectedLanguage().then(function (data) {
-      LanguageService.setSelectedLanguage(data)
-    })
-  }
-
-
-  LanguageService.setSelectedLanguage = function (lang) {
-    var deferred = $q.defer()
-    LanguageService.selectedLanguage = lang
-    gettextCatalog.currentLanguage = lang
-    SettingsService.setItem('Language.selected', lang).then(function () {
-      deferred.resolve(lang)
-    })
-    return deferred.promise
-  }
+  LanguageService.updateLanguage = updateLanguage
 
   return LanguageService
 }

res/app/settings/local/local-settings-controller.js

@@ -1,12 +1,9 @@
 module.exports = function ($scope, SettingsService) {
-
   $scope.resetSettings = function () {
-    SettingsService.clear()
+    SettingsService.reset()
     console.log('Settings cleared')
   }
 
-  $scope.savedTo = SettingsService.driver()
-
 //  $scope.resetSettings = function () {
 //    var title = 'Reset Settings';
 //    var msg = 'Are you sure you want to revert all settings to ' +

res/app/settings/local/local-settings.jade

@@ -6,6 +6,3 @@
     button(ng-click='resetSettings()').btn.btn-danger
       i.fa.fa-trash-o
       span(translate) Reset Settings
-
-    p
-      span.text-muted(translate) Saved to: {{savedTo}}