Show "unplayed" dot on incoming audio messages

ts/messageModifiers/ViewSyncs.ts

@@ -0,0 +1,101 @@
+// Copyright 2021 Signal Messenger, LLC
+// SPDX-License-Identifier: AGPL-3.0-only
+
+/* eslint-disable max-classes-per-file */
+
+import { Collection, Model } from 'backbone';
+
+import { MessageModel } from '../models/messages';
+import { ReadStatus } from '../messages/MessageReadStatus';
+import { markViewed } from '../services/MessageUpdater';
+import { isIncoming } from '../state/selectors/message';
+
+type ViewSyncAttributesType = {
+  senderId: string;
+  senderE164: string;
+  senderUuid: string;
+  timestamp: number;
+  viewedAt: number;
+};
+
+class ViewSyncModel extends Model<ViewSyncAttributesType> {}
+
+let singleton: ViewSyncs | undefined;
+
+export class ViewSyncs extends Collection {
+  static getSingleton(): ViewSyncs {
+    if (!singleton) {
+      singleton = new ViewSyncs();
+    }
+
+    return singleton;
+  }
+
+  forMessage(message: MessageModel): Array<ViewSyncModel> {
+    const senderId = window.ConversationController.ensureContactIds({
+      e164: message.get('source'),
+      uuid: message.get('sourceUuid'),
+    });
+    const syncs = this.filter(item => {
+      return (
+        item.get('senderId') === senderId &&
+        item.get('timestamp') === message.get('sent_at')
+      );
+    });
+    if (syncs.length) {
+      window.log.info(
+        `Found ${syncs.length} early view sync(s) for message ${message.get(
+          'sent_at'
+        )}`
+      );
+      this.remove(syncs);
+    }
+    return syncs;
+  }
+
+  async onSync(sync: ViewSyncModel): Promise<void> {
+    try {
+      const messages = await window.Signal.Data.getMessagesBySentAt(
+        sync.get('timestamp'),
+        {
+          MessageCollection: window.Whisper.MessageCollection,
+        }
+      );
+
+      const found = messages.find(item => {
+        const senderId = window.ConversationController.ensureContactIds({
+          e164: item.get('source'),
+          uuid: item.get('sourceUuid'),
+        });
+
+        return isIncoming(item.attributes) && senderId === sync.get('senderId');
+      });
+
+      if (!found) {
+        window.log.info(
+          'Nothing found for view sync',
+          sync.get('senderId'),
+          sync.get('senderE164'),
+          sync.get('senderUuid'),
+          sync.get('timestamp')
+        );
+        return;
+      }
+
+      window.Whisper.Notifications.removeBy({ messageId: found.id });
+
+      const message = window.MessageController.register(found.id, found);
+
+      if (message.get('readStatus') !== ReadStatus.Viewed) {
+        message.set(markViewed(message.attributes, sync.get('viewedAt')));
+      }
+
+      this.remove(sync);
+    } catch (error) {
+      window.log.error(
+        'ViewSyncs.onSync error:',
+        error && error.stack ? error.stack : error
+      );
+    }
+  }
+}