List waiting notification only once in notification list

Author: tanx

src/computed/notification.js

@@ -13,7 +13,13 @@ const ComputedNotification = store => {
     }),
     computedNotifications: computed(() => {
       const { notifications } = store;
-      const all = notifications ? notifications.slice() : [];
+      const all = [];
+      notifications.forEach(n => {
+        if (n.waiting && all.find(a => a.waiting)) {
+          return;
+        }
+        all.push(n);
+      });
       all.sort((a, b) => b.date.getTime() - a.date.getTime());
       all.forEach(n => {
         n.typeLabel = toCaps(n.type);

test/unit/computed/notification.spec.js

@@ -23,10 +23,30 @@ describe('Computed Notification Unit Tests', () => {
         date: new Date(1528703821406),
         display: true,
       });
+      store.notifications.push({
+        type: 'info',
+        message: 'Syncing to chain',
+        date: new Date(1528703821407),
+        display: true,
+        waiting: true,
+      });
+      store.notifications.push({
+        type: 'info',
+        message: 'Syncing to chain',
+        date: new Date(1528703821408),
+        display: true,
+        waiting: true,
+      });
       ComputedNotification(store);
-      expect(store.lastNotification.type, 'to equal', 'error');
+      expect(store.lastNotification.type, 'to equal', 'info');
       expect(store.displayNotification, 'to equal', true);
       expect(store.computedNotifications, 'to satisfy', [
+        {
+          typeLabel: 'Info',
+          message: 'Syncing to chain',
+          dateLabel: new Date(1528703821407).toLocaleDateString(),
+          dateTimeLabel: new Date(1528703821407).toLocaleString(),
+        },
         {
           typeLabel: 'Error',
           message: 'Oops something went wrong',