From d2d6c5a580d10b054df7581f8db73725ffa94530 Mon Sep 17 00:00:00 2001
From: Eric Eastwood <contact@ericeastwood.com>
Date: Fri, 21 Oct 2022 16:06:11 -0500
Subject: [PATCH] Link rooms with `?via` query paramter from room directory
 landing page (#104)

Fix https://github.com/matrix-org/matrix-public-archive/issues/91

So we're always able to join the room from our origin homeserver to the remote room we don't know about yet.
---
 shared/viewmodels/RoomDirectoryViewModel.js | 31 +++++++++++----------
 1 file changed, 17 insertions(+), 14 deletions(-)

diff --git a/shared/viewmodels/RoomDirectoryViewModel.js b/shared/viewmodels/RoomDirectoryViewModel.js
index bd1c38c..277548a 100644
--- a/shared/viewmodels/RoomDirectoryViewModel.js
+++ b/shared/viewmodels/RoomDirectoryViewModel.js
@@ -34,20 +34,6 @@ class RoomDirectoryViewModel extends ViewModel {
     this._homeserverUrl = homeserverUrl;
     this._homeserverName = homeserverName;
     this._matrixPublicArchiveURLCreator = matrixPublicArchiveURLCreator;
-    this._rooms = new ObservableArray(
-      rooms.map((room) => {
-        return {
-          roomId: room.room_id,
-          canonicalAlias: room.canonical_alias,
-          name: room.name,
-          mxcAvatarUrl: room.avatar_url,
-          homeserverUrlToPullMediaFrom: homeserverUrl,
-          numJoinedMembers: room.num_joined_members,
-          topic: room.topic,
-          archiveRoomUrl: matrixPublicArchiveURLCreator.archiveUrlForRoom(room.room_id),
-        };
-      })
-    );
 
     this._pageSearchParameters = pageSearchParameters;
     // Default to what the page started with
@@ -78,6 +64,23 @@ class RoomDirectoryViewModel extends ViewModel {
       })
     );
 
+    this._rooms = new ObservableArray(
+      rooms.map((room) => {
+        return {
+          roomId: room.room_id,
+          canonicalAlias: room.canonical_alias,
+          name: room.name,
+          mxcAvatarUrl: room.avatar_url,
+          homeserverUrlToPullMediaFrom: homeserverUrl,
+          numJoinedMembers: room.num_joined_members,
+          topic: room.topic,
+          archiveRoomUrl: matrixPublicArchiveURLCreator.archiveUrlForRoom(room.room_id, {
+            viaServers: [this.pageSearchParameters.homeserver],
+          }),
+        };
+      })
+    );
+
     this.#setupNavigation();
   }