new chain: show only snackbar

js/src/redux/middleware.js

@@ -22,23 +22,23 @@ import SignerMiddleware from './providers/signerMiddleware';
 
 import statusMiddleware from '~/views/Status/middleware';
 import CertificationsMiddleware from './providers/certifications/middleware';
-import StatusMiddleware from './providers/statusMiddleware';
+import ChainMiddleware from './providers/chainMiddleware';
 
 export default function (api, browserHistory) {
   const errors = new ErrorsMiddleware();
   const signer = new SignerMiddleware(api);
   const settings = new SettingsMiddleware();
   const status = statusMiddleware();
   const certifications = new CertificationsMiddleware();
-  const status2 = new StatusMiddleware();
   const routeMiddleware = routerMiddleware(browserHistory);
+  const chain = new ChainMiddleware();
 
   const middleware = [
     settings.toMiddleware(),
     signer.toMiddleware(),
     errors.toMiddleware(),
     certifications.toMiddleware(),
-    status2.toMiddleware()
+    chain.toMiddleware()
   ];
 
   return middleware.concat(status, routeMiddleware, thunk);

js/src/redux/providers/certifications/actions.js

@@ -14,10 +14,6 @@
 // You should have received a copy of the GNU General Public License
 // along with Parity.  If not, see <http://www.gnu.org/licenses/>.
 
-export const clearCertifiers = () => ({
-  type: 'clearCertifiers'
-});
-
 export const fetchCertifiers = () => ({
   type: 'fetchCertifiers'
 });

js/src/redux/providers/certifications/middleware.js

@@ -19,7 +19,7 @@ import { uniq, range, debounce } from 'lodash';
 import CertifierABI from '~/contracts/abi/certifier.json';
 import Contract from '~/api/contract';
 import Contracts from '~/contracts';
-import { clearCertifiers, addCertification, removeCertification } from './actions';
+import { addCertification, removeCertification } from './actions';
 
 // TODO: move this to a more general place
 const updatableFilter = (api, onFilter) => {

js/src/redux/providers/certifications/reducer.js

@@ -39,9 +39,5 @@ export default (state = initialState, action) => {
     return { ...state, [address]: newCertifications };
   }
 
-  if (action.type === 'clearCertifiers') {
-    return {};
-  }
-
   return state;
 };

js/src/redux/providers/chainMiddleware.js

@@ -0,0 +1,38 @@
+// Copyright 2015, 2016 Parity Technologies (UK) Ltd.
+// This file is part of Parity.
+
+// Parity is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+
+// Parity is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+
+// You should have received a copy of the GNU General Public License
+// along with Parity.  If not, see <http://www.gnu.org/licenses/>.
+
+import { showSnackbar } from './snackbarActions';
+
+export default class ChainMiddleware {
+  toMiddleware () {
+    return (store) => (next) => (action) => {
+      if (action.type === 'statusCollection') {
+        const { collection } = action;
+
+        if (collection && collection.netChain) {
+          const chain = collection.netChain;
+          const { nodeStatus } = store.getState();
+
+          if (chain !== nodeStatus.netChain) {
+            showSnackbar(`Switched to ${chain}. Please reload the page.`, 3000);
+          }
+        }
+      }
+
+      next(action);
+    };
+  }
+}