Implement breadcrumb notifications and scrolling

src/components/views/avatars/DecoratedRoomAvatar.tsx

@@ -0,0 +1,65 @@
+/*
+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 React from 'react';
+import { Room } from "matrix-js-sdk/src/models/room";
+
+import { TagID } from '../../../stores/room-list/models';
+import RoomAvatar from "./RoomAvatar";
+import RoomTileIcon from "../rooms/RoomTileIcon";
+import NotificationBadge, { INotificationState, TagSpecificNotificationState } from '../rooms/NotificationBadge';
+
+interface IProps {
+    room: Room;
+    avatarSize: number;
+    tag: TagID;
+    displayBadge?: boolean;
+    forceCount?: boolean;
+}
+
+interface IState {
+    notificationState?: INotificationState;
+}
+
+export default class DecoratedRoomAvatar extends React.PureComponent<IProps, IState> {
+
+    constructor(props: IProps) {
+        super(props);
+
+        this.state = {
+            notificationState: new TagSpecificNotificationState(this.props.room, this.props.tag),
+        }
+    }
+
+    public render(): React.ReactNode {
+        console.log({tag: this.props.tag})
+
+        let badge: React.ReactNode;
+        if (this.props.displayBadge) {
+            badge = <NotificationBadge
+                notification={this.state.notificationState}
+                forceCount={this.props.forceCount}
+                roomId={this.props.room.roomId}
+            />;
+        }
+
+        return <div className="mx_DecoratedRoomAvatar">
+            <RoomAvatar room={this.props.room} width={this.props.avatarSize} height={this.props.avatarSize} />
+            <RoomTileIcon room={this.props.room} tag={this.props.tag} isBlah={true}/>
+            {badge}
+        </div>
+    }
+}