1 files changed, 17 insertions, 0 deletions
diff --git a/app/javascript/mastodon/reducers/conversations.js b/app/javascript/mastodon/reducers/conversations.js
index f339abf56..ea39fccee 100644
--- a/app/javascript/mastodon/reducers/conversations.js
+++ b/app/javascript/mastodon/reducers/conversations.js
@@ -1,9 +1,12 @@
 import { Map as ImmutableMap, List as ImmutableList } from 'immutable';
 import {
+  CONVERSATIONS_MOUNT,
+  CONVERSATIONS_UNMOUNT,
   CONVERSATIONS_FETCH_REQUEST,
   CONVERSATIONS_FETCH_SUCCESS,
   CONVERSATIONS_FETCH_FAIL,
   CONVERSATIONS_UPDATE,
+  CONVERSATIONS_READ,
 } from '../actions/conversations';
 import compareId from '../compare_id';
 
@@ -11,10 +14,12 @@ const initialState = ImmutableMap({
   items: ImmutableList(),
   isLoading: false,
   hasMore: true,
+  mounted: false,
 });
 
 const conversationToMap = item => ImmutableMap({
   id: item.id,
+  unread: item.unread,
   accounts: ImmutableList(item.accounts.map(a => a.id)),
   last_status: item.last_status.id,
 });
@@ -73,6 +78,18 @@ export default function conversations(state = initialState, action) {
     return expandNormalizedConversations(state, action.conversations, action.next);
   case CONVERSATIONS_UPDATE:
     return updateConversation(state, action.conversation);
+  case CONVERSATIONS_MOUNT:
+    return state.update('mounted', count => count + 1);
+  case CONVERSATIONS_UNMOUNT:
+    return state.update('mounted', count => count - 1);
+  case CONVERSATIONS_READ:
+    return state.update('items', list => list.map(item => {
+      if (item.get('id') === action.id) {
+        return item.set('unread', false);
+      }
+
+      return item;
+    }));
   default:
     return state;
   }