Display the list of spaces

matrixgw_frontend/src/widgets/messages/MainMessagesWidget.tsx

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+import React from "react";
+import {
+  MatrixApiProfile,
+  type UsersMap,
+} from "../../api/matrix/MatrixApiProfile";
+import { MatrixApiRoom, type Room } from "../../api/matrix/MatrixApiRoom";
+import { MatrixSyncApi } from "../../api/MatrixSyncApi";
+import { AsyncWidget } from "../AsyncWidget";
+import { SpaceSelector } from "./SpaceSelector";
+import { Divider } from "@mui/material";
+
+export function MainMessageWidget(): React.ReactElement {
+  const [rooms, setRooms] = React.useState<Room[] | undefined>();
+  const [users, setUsers] = React.useState<UsersMap | undefined>();
+
+  const load = async () => {
+    await MatrixSyncApi.Start();
+
+    const rooms = await MatrixApiRoom.ListJoined();
+    setRooms(rooms);
+
+    // Get the list of users in rooms
+    const users = rooms.reduce((prev, r) => {
+      r.members.forEach((m) => prev.add(m));
+      return prev;
+    }, new Set<string>());
+
+    setUsers(await MatrixApiProfile.GetMultiple([...users]));
+  };
+
+  return (
+    <AsyncWidget
+      loadKey={1}
+      load={load}
+      ready={!!rooms && !!users}
+      errMsg="Failed to initialize messaging component!"
+      build={() => <_MainMessageWidget rooms={rooms!} users={users!} />}
+    />
+  );
+}
+
+function _MainMessageWidget(p: {
+  rooms: Room[];
+  users: UsersMap;
+}): React.ReactElement {
+  const [space, setSpace] = React.useState<string | undefined>();
+  return (
+    <div style={{ display: "flex", height: "100%" }}>
+      <SpaceSelector {...p} selectedSpace={space} onChange={setSpace} />
+      <Divider orientation="vertical" />
+      <span style={{ flex: 1 }}>todo</span>
+    </div>
+  );
+}

matrixgw_frontend/src/widgets/messages/RoomIcon.tsx

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+import { Icon } from "@mui/material";
+import { MatrixApiMedia } from "../../api/matrix/MatrixApiMedia";
+import type { UsersMap } from "../../api/matrix/MatrixApiProfile";
+import type { Room } from "../../api/matrix/MatrixApiRoom";
+import { useUserInfo } from "../dashboard/BaseAuthenticatedPage";
+import GroupIcon from "@mui/icons-material/Group";
+
+export function RoomIcon(p: {
+  room: Room;
+  users: UsersMap;
+}): React.ReactElement {
+  const user = useUserInfo();
+
+  let url = p.room.avatar;
+
+  if (!url && p.room.members.length <= 1) url = p.room.members[0];
+
+  if (!url && p.room.members.length < 2)
+    url =
+      p.room.members[0] == user.info.matrix_user_id
+        ? p.room.members[1]
+        : p.room.members[0];
+
+  if (!url) return <GroupIcon />;
+  else
+    return (
+      <img
+        src={MatrixApiMedia.MediaURL(url, true)}
+        style={{ maxWidth: "1em", maxHeight: "1em" }}
+      />
+    );
+}

matrixgw_frontend/src/widgets/messages/SpaceSelector.tsx

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+import HomeIcon from "@mui/icons-material/Home";
+import { Button } from "@mui/material";
+import React from "react";
+import type { UsersMap } from "../../api/matrix/MatrixApiProfile";
+import type { Room } from "../../api/matrix/MatrixApiRoom";
+import { RoomIcon } from "./RoomIcon";
+
+export function SpaceSelector(p: {
+  rooms: Room[];
+  users: UsersMap;
+  selectedSpace?: string;
+  onChange: (space?: string) => void;
+}): React.ReactElement {
+  const spaces = React.useMemo(
+    () => p.rooms.filter((r) => r.is_space),
+    [p.rooms]
+  );
+
+  return (
+    <div style={{ display: "flex", flexDirection: "column" }}>
+      <SpaceButton
+        icon={<HomeIcon />}
+        onClick={() => p.onChange()}
+        selected={p.selectedSpace === undefined}
+      />
+
+      {spaces.map((s) => (
+        <SpaceButton
+          key={s.id}
+          icon={<RoomIcon room={s} {...p} />}
+          onClick={() => p.onChange(s.id)}
+          selected={p.selectedSpace === s.id}
+        />
+      ))}
+    </div>
+  );
+}
+
+function SpaceButton(p: {
+  selected?: boolean;
+  icon: React.ReactElement;
+  onClick: () => void;
+}): React.ReactElement {
+  return (
+    <Button
+      variant={p.selected ? "contained" : "text"}
+      style={{ margin: "2px 5px", padding: "25px 10px", fontSize: "200%" }}
+      onClick={p.onClick}
+    >
+      {p.icon}
+    </Button>
+  );
+}