From 40d113a423283f71515d84808fc817ed6cc467f6 Mon Sep 17 00:00:00 2001
From: Kegan Dougal <kegan@matrix.org>
Date: Fri, 16 Oct 2015 11:54:47 +0100
Subject: [PATCH] Pass in receipts from initialSync

---
 lib/client.js | 18 ++++++++++++++++++
 1 file changed, 18 insertions(+)

diff --git a/lib/client.js b/lib/client.js
index ea7aee9cb..87476d6c8 100644
--- a/lib/client.js
+++ b/lib/client.js
@@ -1903,6 +1903,19 @@ function doInitialSync(client, historyLen) {
                 user.setPresenceEvent(e);
                 client.store.storeUser(user);
             });
+
+            // group receipts by room ID.
+            var receiptsByRoom = {};
+            data.receipts = data.receipts || [];
+            utils.forEach(data.receipts.map(_PojoToMatrixEventMapper(client)),
+                function(receiptEvent) {
+                    if (!receiptsByRoom[receiptEvent.getRoomId()]) {
+                        receiptsByRoom[receiptEvent.getRoomId()] = [];
+                    }
+                    receiptsByRoom[receiptEvent.getRoomId()].push(receiptEvent);
+                }
+            );
+
             for (i = 0; i < data.rooms.length; i++) {
                 var room = createNewRoom(client, data.rooms[i].room_id);
                 if (!data.rooms[i].state) {
@@ -1926,6 +1939,11 @@ function doInitialSync(client, historyLen) {
                     client, room, data.rooms[i].state, data.rooms[i].messages
                 );
 
+                var receipts = receiptsByRoom[room.roomId] || [];
+                for (j = 0; j < receipts.length; j++) {
+                    room.addReceipt(receipts[j]);
+                }
+
                 // cache the name/summary/etc prior to storage since we don't
                 // know how the store will serialise the Room.
                 room.recalculate(client.credentials.userId);