From 739d74bf9c0b024265a108607e3fcfea1e174c33 Mon Sep 17 00:00:00 2001
From: Bruno Windels <brunow@matrix.org>
Date: Fri, 21 Aug 2020 11:56:10 +0200
Subject: [PATCH] add method to clear unread state

---
 src/matrix/room/Room.js        | 17 +++++++++++++++++
 src/matrix/room/RoomSummary.js |  9 +++++++++
 2 files changed, 26 insertions(+)

diff --git a/src/matrix/room/Room.js b/src/matrix/room/Room.js
index 5ac77009..75978b27 100644
--- a/src/matrix/room/Room.js
+++ b/src/matrix/room/Room.js
@@ -184,6 +184,23 @@ export class Room extends EventEmitter {
         return this._summary.avatarUrl;
     }
 
+    async clearUnread() {
+        const txn = await this._storage.readWriteTxn([
+            this._storage.storeNames.roomSummary,
+        ]);
+        let data;
+        try {
+            data = this._summary.writeClearUnread(txn);
+        } catch (err) {
+            txn.abort();
+            throw err;
+        }
+        await txn.complete();
+        this._summary.applyChanges(data);
+        this.emit("change");
+        this._emitCollectionChange(this);
+    }
+
     /** @public */
     async openTimeline() {
         if (this._timeline) {
diff --git a/src/matrix/room/RoomSummary.js b/src/matrix/room/RoomSummary.js
index bb74656f..399d869b 100644
--- a/src/matrix/room/RoomSummary.js
+++ b/src/matrix/room/RoomSummary.js
@@ -191,6 +191,15 @@ export class RoomSummary {
         return this._data.lastPaginationToken;
     }
 
+    writeClearUnread(txn) {
+        const data = new SummaryData(this._data);
+        data.isUnread = false;
+        data.notificationCount = 0;
+        data.highlightCount = 0;
+        txn.roomSummary.set(data.serialize());
+        return data;
+    }
+
     writeHasFetchedMembers(value, txn) {
         const data = new SummaryData(this._data);
         data.hasFetchedMembers = value;