From dbf5e59d874af384c1399af3166c6bcadd7d8b92 Mon Sep 17 00:00:00 2001
From: Bruno Windels <brunow@matrix.org>
Date: Fri, 21 Aug 2020 11:57:49 +0200
Subject: [PATCH] clear unread state 2s after opening the room

---
 src/domain/session/room/RoomViewModel.js | 14 ++++++++++++++
 1 file changed, 14 insertions(+)

diff --git a/src/domain/session/room/RoomViewModel.js b/src/domain/session/room/RoomViewModel.js
index 86edf027..b5c05be7 100644
--- a/src/domain/session/room/RoomViewModel.js
+++ b/src/domain/session/room/RoomViewModel.js
@@ -32,6 +32,7 @@ export class RoomViewModel extends ViewModel {
         this._sendError = null;
         this._closeCallback = closeCallback;
         this._composerVM = new ComposerViewModel(this);
+        this._clearUnreadTimout = null;
     }
 
     async load() {
@@ -49,6 +50,15 @@ export class RoomViewModel extends ViewModel {
             this._timelineError = err;
             this.emitChange("error");
         }
+        this._clearUnreadTimout = this.clock.createTimeout(2000);
+        try {
+            await this._clearUnreadTimout.elapsed();
+            await this._room.clearUnread();
+        } catch (err) {
+            if (err.name !== "AbortError") {
+                throw err;
+            }    
+        }
     }
 
     dispose() {
@@ -57,6 +67,10 @@ export class RoomViewModel extends ViewModel {
             // will stop the timeline from delivering updates on entries
             this._timeline.close();
         }
+        if (this._clearUnreadTimout) {
+            this._clearUnreadTimout.abort();
+            this._clearUnreadTimout = null;
+        }
     }
 
     close() {