trigger opengroup sync when joining an open group

libtextsecure/index.d.ts

@@ -1,6 +1,7 @@
 import { LibTextsecureCryptoInterface } from './crypto';
 
 export interface LibTextsecure {
+  messaging: any;
   crypto: LibTextsecureCryptoInterface;
   storage: any;
   SendMessageNetworkError: any;

libtextsecure/sendmessage.js

@@ -419,13 +419,14 @@ MessageSender.prototype = {
     return Promise.all(syncPromises);
   },
 
-  async sendOpenGroupsSyncMessage(conversations) {
+  async sendOpenGroupsSyncMessage(convos) {
     // If we havn't got a primaryDeviceKey then we are in the middle of pairing
     // primaryDevicePubKey is set to our own number if we are the master device
     const primaryDeviceKey = window.storage.get('primaryDevicePubKey');
     if (!primaryDeviceKey) {
       return Promise.resolve();
     }
+    const conversations = Array.isArray(convos) ? convos : [convos];
 
     const openGroupsConvos = await libsession.Utils.SyncMessageUtils.filterOpenGroupsConvos(
       conversations
@@ -453,9 +454,9 @@ MessageSender.prototype = {
   },
   syncReadMessages(reads) {
     const myDevice = textsecure.storage.user.getDeviceId();
-    // FIXME audric currently not in used
+    // FIXME currently not in used
     if (myDevice !== 1 && myDevice !== '1') {
-      const syncReadMessages = new libsession.Messages.Outgoing.OpenGroupSyncMessage(
+      const syncReadMessages = new libsession.Messages.Outgoing.SyncReadMessage(
         {
           readMessages: reads,
         }
@@ -467,7 +468,7 @@ MessageSender.prototype = {
   },
   async syncVerification(destination, state, identityKey) {
     const myDevice = textsecure.storage.user.getDeviceId();
-
+    // FIXME currently not in used
     if (myDevice === 1 || myDevice === '1') {
       return Promise.resolve();
     }

ts/components/session/LeftPaneMessageSection.tsx

@@ -487,6 +487,19 @@ export class LeftPaneMessageSection extends React.Component<Props, State> {
           this.setState({ loading: true });
         }
       });
+      const openGroupConversation = await OpenGroup.getConversation(serverUrl);
+
+      if (openGroupConversation) {
+        // if no errors happened, trigger a sync with just this open group
+        // so our other devices joins it
+        await window.textsecure.messaging.sendOpenGroupsSyncMessage(
+          openGroupConversation
+        );
+      } else {
+        window.console.error(
+          'Joined an opengroup but did not find ther corresponding conversation'
+        );
+      }
     } catch (e) {
       window.console.error('Failed to connect to server:', e);
       window.pushToast({