Fix room space invite button for public spaces

src/utils/space.tsx

@@ -0,0 +1,104 @@
+/*
+Copyright 2021 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 {MatrixClient} from "matrix-js-sdk/src/client";
+import {EventType} from "matrix-js-sdk/src/@types/event";
+
+import {calculateRoomVia} from "../utils/permalinks/Permalinks";
+import Modal from "../Modal";
+import SpaceSettingsDialog from "../components/views/dialogs/SpaceSettingsDialog";
+import AddExistingToSpaceDialog from "../components/views/dialogs/AddExistingToSpaceDialog";
+import CreateRoomDialog from "../components/views/dialogs/CreateRoomDialog";
+import createRoom, {IOpts} from "../createRoom";
+import {_t} from "../languageHandler";
+import SpacePublicShare from "../components/views/spaces/SpacePublicShare";
+import InfoDialog from "../components/views/dialogs/InfoDialog";
+import { showRoomInviteDialog } from "../RoomInvite";
+
+export const shouldShowSpaceSettings = (cli: MatrixClient, space: Room) => {
+    const userId = cli.getUserId();
+    return space.getMyMembership() === "join"
+        && (space.currentState.maySendStateEvent(EventType.RoomAvatar, userId)
+            || space.currentState.maySendStateEvent(EventType.RoomName, userId)
+            || space.currentState.maySendStateEvent(EventType.RoomTopic, userId)
+            || space.currentState.maySendStateEvent(EventType.RoomJoinRules, userId));
+};
+
+export const makeSpaceParentEvent = (room: Room, canonical = false) => ({
+    type: EventType.SpaceParent,
+    content: {
+        "via": calculateRoomVia(room),
+        "canonical": canonical,
+    },
+    state_key: room.roomId,
+});
+
+export const showSpaceSettings = (cli: MatrixClient, space: Room) => {
+    Modal.createTrackedDialog("Space Settings", "", SpaceSettingsDialog, {
+        matrixClient: cli,
+        space,
+    }, /*className=*/null, /*isPriority=*/false, /*isStatic=*/true);
+};
+
+export const showAddExistingRooms = async (cli: MatrixClient, space: Room) => {
+    return Modal.createTrackedDialog(
+        "Space Landing",
+        "Add Existing",
+        AddExistingToSpaceDialog,
+        {
+            matrixClient: cli,
+            onCreateRoomClick: showCreateNewRoom,
+            space,
+        },
+        "mx_AddExistingToSpaceDialog_wrapper",
+    ).finished;
+};
+
+export const showCreateNewRoom = async (cli: MatrixClient, space: Room) => {
+    const modal = Modal.createTrackedDialog<[boolean, IOpts]>(
+        "Space Landing",
+        "Create Room",
+        CreateRoomDialog,
+        {
+            defaultPublic: space.getJoinRule() === "public",
+            parentSpace: space,
+        },
+    );
+    const [shouldCreate, opts] = await modal.finished;
+    if (shouldCreate) {
+        await createRoom(opts);
+    }
+};
+
+export const showSpaceInvite = (space: Room, initialText = "") => {
+    if (space.getJoinRule() === "public") {
+        const modal = Modal.createTrackedDialog("Space Invite", "User Menu", InfoDialog, {
+            title: _t("Invite to %(spaceName)s", { spaceName: space.name }),
+            description: <React.Fragment>
+                <span>{ _t("Share your public space") }</span>
+                <SpacePublicShare space={space} onFinished={() => modal.close()} />
+            </React.Fragment>,
+            fixedWidth: false,
+            button: false,
+            className: "mx_SpacePanel_sharePublicSpace",
+            hasCloseButton: true,
+        });
+    } else {
+        showRoomInviteDialog(space.roomId, initialText);
+    }
+};