Show notification after plugin update downloaded

Summary: Add notification after plugin update downloaded

Reviewed By: passy

Differential Revision: D22016571

fbshipit-source-id: 188eeb848561f8461d7f76d1965dc5190d41e7d0

desktop/app/src/reducers/notifications.tsx

@@ -51,6 +51,10 @@ export type Action =
   | {
       type: 'UPDATE_CATEGORY_BLACKLIST';
       payload: Array<string>;
+    }
+  | {
+      type: 'ADD_NOTIFICATION';
+      payload: PluginNotification;
     };
 
 const INITIAL_STATE: State = {
@@ -94,6 +98,11 @@ export default function reducer(
         ...state,
         blacklistedCategories: action.payload,
       };
+    case 'ADD_NOTIFICATION':
+      return {
+        ...state,
+        activeNotifications: [...state.activeNotifications, action.payload],
+      };
     default:
       return state;
   }
@@ -140,6 +149,13 @@ function activeNotificationsReducer(
   };
 }
 
+export function addNotification(payload: PluginNotification): Action {
+  return {
+    type: 'ADD_NOTIFICATION',
+    payload,
+  };
+}
+
 export function setActiveNotifications(payload: {
   notifications: Array<Notification>;
   client: null | string;