Merge pull request #4697 from matrix-org/travis/room-list/scrolling-resize

New room list scrolling and resizing

res/css/_components.scss

@@ -179,6 +179,7 @@
 @import "./views/rooms/_RoomList.scss";
 @import "./views/rooms/_RoomPreviewBar.scss";
 @import "./views/rooms/_RoomRecoveryReminder.scss";
+@import "./views/rooms/_RoomSublist2.scss";
 @import "./views/rooms/_RoomTile.scss";
 @import "./views/rooms/_RoomUpgradeWarningBar.scss";
 @import "./views/rooms/_SearchBar.scss";

res/css/views/rooms/_RoomList.scss

@@ -15,6 +15,10 @@ See the License for the specific language governing permissions and
 limitations under the License.
 */
 
+.mx_RoomList.mx_RoomList2 {
+    overflow-y: auto;
+}
+
 .mx_RoomList {
     /* take up remaining space below TopLeftMenu */
     flex: 1;

res/css/views/rooms/_RoomSublist2.scss

@@ -0,0 +1,21 @@
+/*
+Copyright 2020 The Matrix.org Foundation C.I.C.
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/
+
+@import "../../../../node_modules/react-resizable/css/styles.css";
+
+.mx_RoomList2 .mx_RoomSubList_labelContainer {
+    z-index: 12;
+}