Adds check preset for no network

src/services/angular-defensive.services.js

@@ -2,7 +2,8 @@ import DefensiveConfiguration from './defensive-configuration';
 
 var moduleName = 'ngDefensive.services';
 
-angular.module(moduleName, [])
+angular.module(moduleName, ['offline'])
   .factory('DefensiveConfiguration', DefensiveConfiguration.factory);
+  .factory('CheckPreset', CheckPreset.factory);
 
 export default moduleName;

src/services/check-preset.js

@@ -0,0 +1,19 @@
+const CONNECTION_STATUS = new WeakMap();
+
+class CheckPreset {
+
+  constructor(connectionStatus) {
+    CONNECTION_STATUS.set(this, connectionStatus);
+  }
+
+  noNetwork() {
+    return !connectionStatus.isOnline();
+  }
+
+  static factory(connectionStatus) {
+    return new CheckPreset(connectionStatus);
+  }
+
+}
+
+export default CheckPreset;