Merge branch 't3chguy/fix/18092' of github.com:matrix-org/matrix-react-sdk into t3chguy/fix/18088

res/css/_components.scss

@@ -75,6 +75,7 @@
 @import "./views/dialogs/_CreateCommunityPrototypeDialog.scss";
 @import "./views/dialogs/_CreateGroupDialog.scss";
 @import "./views/dialogs/_CreateRoomDialog.scss";
+@import "./views/dialogs/_CreateSpaceFromCommunityDialog.scss";
 @import "./views/dialogs/_CreateSubspaceDialog.scss";
 @import "./views/dialogs/_DeactivateAccountDialog.scss";
 @import "./views/dialogs/_DevtoolsDialog.scss";

res/css/structures/_GroupView.scss

@@ -368,6 +368,61 @@ limitations under the License.
     padding: 40px 20px;
 }
 
+.mx_GroupView_spaceUpgradePrompt {
+    padding: 16px 50px;
+    background-color: $header-panel-bg-color;
+    border-radius: 8px;
+    max-width: 632px;
+    font-size: $font-15px;
+    line-height: $font-24px;
+    margin-top: 24px;
+    position: relative;
+
+    > h2 {
+        font-size: inherit;
+        font-weight: $font-semi-bold;
+    }
+
+    > p, h2 {
+        margin: 0;
+    }
+
+    &::before {
+        content: "";
+        position: absolute;
+        height: $font-24px;
+        width: 20px;
+        left: 18px;
+        mask-repeat: no-repeat;
+        mask-position: center;
+        mask-size: contain;
+        mask-image: url('$(res)/img/element-icons/room/room-summary.svg');
+        background-color: $secondary-fg-color;
+    }
+
+    .mx_AccessibleButton {
+        width: 16px;
+        height: 16px;
+        border-radius: 8px;
+        background-color: $input-darker-bg-color;
+        position: absolute;
+        top: 16px;
+        right: 16px;
+
+        &::before {
+            content: "";
+            position: absolute;
+            width: inherit;
+            height: inherit;
+            mask-repeat: no-repeat;
+            mask-position: center;
+            mask-size: 8px;
+            mask-image: url('$(res)/img/image-view/close.svg');
+            background-color: $secondary-fg-color;
+        }
+    }
+}
+
 .mx_GroupView .mx_MemberInfo .mx_AutoHideScrollbar > :not(.mx_MemberInfo_avatar) {
     padding-left: 16px;
     padding-right: 16px;

res/css/structures/_SpaceRoomView.scss

@@ -180,6 +180,18 @@ $SpaceRoomViewInnerWidth: 428px;
             }
         }
 
+        .mx_SpaceRoomView_preview_migratedCommunity {
+            margin-bottom: 16px;
+            padding: 8px 12px;
+            border-radius: 8px;
+            border: 1px solid $input-border-color;
+            width: max-content;
+
+            .mx_BaseAvatar {
+                margin-right: 4px;
+            }
+        }
+
         .mx_SpaceRoomView_preview_inviter {
             display: flex;
             align-items: center;
@@ -342,7 +354,7 @@ $SpaceRoomViewInnerWidth: 428px;
 
         .mx_SpaceFeedbackPrompt {
             padding: 7px; // 8px - 1px border
-            border: 1px solid $menu-border-color;
+            border: 1px solid rgba($primary-fg-color, .1);
             border-radius: 8px;
             width: max-content;
             margin: 0 0 -40px auto; // collapse its own height to not push other components down

res/css/views/context_menus/_TagTileContextMenu.scss

@@ -51,6 +51,10 @@ limitations under the License.
     mask-image: url('$(res)/img/element-icons/hide.svg');
 }
 
+.mx_TagTileContextMenu_createSpace::before {
+    mask-image: url('$(res)/img/element-icons/message/fwd.svg');
+}
+
 .mx_TagTileContextMenu_separator {
     margin-top: 0;
     margin-bottom: 0;

res/css/views/dialogs/_CreateSpaceFromCommunityDialog.scss

@@ -0,0 +1,179 @@
+/*
+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.
+*/
+
+.mx_CreateSpaceFromCommunityDialog_wrapper {
+    .mx_Dialog {
+        display: flex;
+        flex-direction: column;
+    }
+}
+
+.mx_CreateSpaceFromCommunityDialog {
+    width: 480px;
+    color: $primary-fg-color;
+    display: flex;
+    flex-direction: column;
+    flex-wrap: nowrap;
+    min-height: 0;
+
+    .mx_CreateSpaceFromCommunityDialog_content {
+        > p {
+            font-size: $font-15px;
+            line-height: $font-24px;
+
+            &:first-of-type {
+                margin-top: 0;
+            }
+
+            &.mx_CreateSpaceFromCommunityDialog_flairNotice {
+                font-size: $font-12px;
+                line-height: $font-15px;
+            }
+        }
+
+        .mx_SpaceBasicSettings {
+            > p {
+                font-size: $font-12px;
+                line-height: $font-15px;
+                margin: 16px 0;
+            }
+        }
+
+        .mx_JoinRuleDropdown .mx_Dropdown_menu {
+            width: auto !important; // override fixed width
+        }
+    }
+
+    .mx_CreateSpaceFromCommunityDialog_footer {
+        display: flex;
+        margin-top: 20px;
+
+        > span {
+            flex-grow: 1;
+            font-size: $font-12px;
+            line-height: $font-15px;
+            color: $secondary-fg-color;
+
+            .mx_ProgressBar {
+                height: 8px;
+                width: 100%;
+
+                @mixin ProgressBarBorderRadius 8px;
+            }
+
+            .mx_CreateSpaceFromCommunityDialog_progressText {
+                margin-top: 8px;
+                font-size: $font-15px;
+                line-height: $font-24px;
+                color: $primary-fg-color;
+            }
+
+            > * {
+                vertical-align: middle;
+            }
+        }
+
+        .mx_CreateSpaceFromCommunityDialog_error {
+            padding-left: 12px;
+
+            > img {
+                align-self: center;
+            }
+
+            .mx_CreateSpaceFromCommunityDialog_errorHeading {
+                font-weight: $font-semi-bold;
+                font-size: $font-15px;
+                line-height: $font-18px;
+                color: $notice-primary-color;
+            }
+
+            .mx_CreateSpaceFromCommunityDialog_errorCaption {
+                margin-top: 4px;
+                font-size: $font-12px;
+                line-height: $font-15px;
+                color: $primary-fg-color;
+            }
+        }
+
+        .mx_AccessibleButton {
+            display: inline-block;
+            align-self: center;
+        }
+
+        .mx_AccessibleButton_kind_primary {
+            padding: 8px 36px;
+            margin-left: 24px;
+        }
+
+        .mx_AccessibleButton_kind_primary_outline {
+            margin-left: auto;
+        }
+
+        .mx_CreateSpaceFromCommunityDialog_retryButton {
+            margin-left: 12px;
+            padding-left: 24px;
+            position: relative;
+
+            &::before {
+                content: '';
+                position: absolute;
+                background-color: $primary-fg-color;
+                mask-repeat: no-repeat;
+                mask-position: center;
+                mask-size: contain;
+                mask-image: url('$(res)/img/element-icons/retry.svg');
+                width: 18px;
+                height: 18px;
+                left: 0;
+            }
+        }
+
+        .mx_AccessibleButton_kind_link {
+            padding: 0;
+        }
+    }
+}
+
+.mx_CreateSpaceFromCommunityDialog_SuccessInfoDialog {
+    .mx_InfoDialog {
+        max-width: 500px;
+    }
+
+    .mx_AccessibleButton_kind_link {
+        padding: 0;
+    }
+
+    .mx_CreateSpaceFromCommunityDialog_SuccessInfoDialog_checkmark {
+        position: relative;
+        border-radius: 50%;
+        border: 3px solid $accent-color;
+        width: 68px;
+        height: 68px;
+        margin: 12px auto 32px;
+
+        &::before {
+            width: inherit;
+            height: inherit;
+            content: '';
+            position: absolute;
+            background-color: $accent-color;
+            mask-repeat: no-repeat;
+            mask-position: center;
+            mask-image: url('$(res)/img/element-icons/roomlist/checkmark.svg');
+            mask-size: 48px;
+        }
+    }
+}

res/css/views/elements/_Field.scss

@@ -38,6 +38,7 @@ limitations under the License.
 .mx_Field input,
 .mx_Field select,
 .mx_Field textarea {
+    font-family: inherit;
     font-weight: normal;
     font-size: $font-14px;
     border: none;

res/css/views/settings/tabs/_SettingsTab.scss

@@ -50,15 +50,21 @@ limitations under the License.
 }
 
 .mx_SettingsTab_section {
+    $right-gutter: 80px;
+
     margin-bottom: 24px;
 
     .mx_SettingsFlag {
-        margin-right: 80px;
+        margin-right: $right-gutter;
         margin-bottom: 10px;
     }
 
+    > p {
+        margin-right: $right-gutter;
+    }
+
     &.mx_SettingsTab_subsectionText .mx_SettingsFlag {
-        margin-right: 0px !important;
+        margin-right: 0 !important;
     }
 }
 

res/css/views/settings/tabs/user/_PreferencesUserSettingsTab.scss

@@ -22,4 +22,25 @@ limitations under the License.
     .mx_SettingsTab_section {
         margin-bottom: 30px;
     }
+
+    .mx_PreferencesUserSettingsTab_CommunityMigrator {
+        margin-right: 200px;
+
+        > div {
+            font-weight: $font-semi-bold;
+            font-size: $font-15px;
+            line-height: $font-18px;
+            color: $primary-fg-color;
+            margin: 16px 0;
+
+            .mx_BaseAvatar {
+                margin-right: 12px;
+                vertical-align: middle;
+            }
+
+            .mx_AccessibleButton {
+                float: right;
+            }
+        }
+    }
 }

res/css/views/spaces/_SpaceCreateMenu.scss

@@ -41,7 +41,6 @@ $spacePanelWidth: 71px;
             > p {
                 font-size: $font-15px;
                 color: $secondary-fg-color;
-                margin: 0;
             }
 
             .mx_SpaceFeedbackPrompt {
@@ -51,13 +50,6 @@ $spacePanelWidth: 71px;
             }
         }
 
-        // XXX remove this when spaces leaves Beta
-        .mx_BetaCard_betaPill {
-            position: absolute;
-            top: 24px;
-            right: 24px;
-        }
-
         .mx_SpaceCreateMenuType {
             @mixin SpacePillButton;
         }
@@ -100,6 +92,11 @@ $spacePanelWidth: 71px;
             width: min-content;
         }
 
+        .mx_AccessibleButton_kind_link {
+            padding: 0;
+            font-size: inherit;
+        }
+
         .mx_AccessibleButton_disabled {
             cursor: not-allowed;
         }

src/components/structures/GroupView.js

@@ -399,6 +399,8 @@ class FeaturedUser extends React.Component {
 const GROUP_JOINPOLICY_OPEN = "open";
 const GROUP_JOINPOLICY_INVITE = "invite";
 
+const UPGRADE_NOTICE_LS_KEY = "mx_hide_community_upgrade_notice";
+
 @replaceableComponent("structures.GroupView")
 export default class GroupView extends React.Component {
     static propTypes = {
@@ -422,6 +424,7 @@ export default class GroupView extends React.Component {
         publicityBusy: false,
         inviterProfile: null,
         showRightPanel: RightPanelStore.getSharedInstance().isOpenForGroup,
+        showUpgradeNotice: !localStorage.getItem(UPGRADE_NOTICE_LS_KEY),
     };
 
     componentDidMount() {
@@ -807,6 +810,11 @@ export default class GroupView extends React.Component {
         showGroupAddRoomDialog(this.props.groupId);
     };
 
+    _dismissUpgradeNotice = () => {
+        localStorage.setItem(UPGRADE_NOTICE_LS_KEY, "true");
+        this.setState({ showUpgradeNotice: false });
+    }
+
     _getGroupSection() {
         const groupSettingsSectionClasses = classnames({
             "mx_GroupView_group": this.state.editing,
@@ -843,10 +851,28 @@ export default class GroupView extends React.Component {
                     },
                 ) }
             </div> : <div />;
+
+        let communitiesUpgradeNotice;
+        if (this.state.showUpgradeNotice) {
+            communitiesUpgradeNotice = <div className="mx_GroupView_spaceUpgradePrompt">
+                <h2>{ _t("Communities can now be made into Spaces") }</h2>
+                <p>
+                    { _t("Spaces are a new way to make a community, with new features coming.") }
+                    &nbsp;
+                    { _t("Ask the admins of this community to make it into a Space " +
+                        "and keep a look out for the invite.") }
+                    &nbsp;
+                    { _t("Communities won't receive further updates.") }
+                </p>
+                <AccessibleButton onClick={this._dismissUpgradeNotice} />
+            </div>;
+        }
+
         return <div className={groupSettingsSectionClasses}>
             { header }
             { hostingSignup }
             { changeDelayWarning }
+            { communitiesUpgradeNotice }
             { this._getJoinableNode() }
             { this._getLongDescriptionNode() }
             { this._getRoomsNode() }

src/components/structures/SpaceRoomView.tsx

@@ -74,6 +74,10 @@ import { BetaPill } from "../views/beta/BetaCard";
 import { UserTab } from "../views/dialogs/UserSettingsDialog";
 import { EffectiveMembership, getEffectiveMembership } from "../../utils/membership";
 import { SpaceFeedbackPrompt } from "../views/spaces/SpaceCreateMenu";
+import { CreateEventField, IGroupSummary } from "../views/dialogs/CreateSpaceFromCommunityDialog";
+import { useAsyncMemo } from "../../hooks/useAsyncMemo";
+import Spinner from "../views/elements/Spinner";
+import GroupAvatar from "../views/avatars/GroupAvatar";
 
 interface IProps {
     space: Room;
@@ -158,7 +162,33 @@ const onBetaClick = () => {
     });
 };
 
-const SpacePreview = ({ space, onJoinButtonClicked, onRejectButtonClicked }) => {
+// XXX: temporary community migration component
+const GroupTile = ({ groupId }: { groupId: string }) => {
+    const cli = useContext(MatrixClientContext);
+    const groupSummary = useAsyncMemo<IGroupSummary>(() => cli.getGroupSummary(groupId), [cli, groupId]);
+
+    if (!groupSummary) return <Spinner />;
+
+    return <>
+        <GroupAvatar
+            groupId={groupId}
+            groupName={groupSummary.profile.name}
+            groupAvatarUrl={groupSummary.profile.avatar_url}
+            width={16}
+            height={16}
+            resizeMethod='crop'
+        />
+        { groupSummary.profile.name }
+    </>;
+};
+
+interface ISpacePreviewProps {
+    space: Room;
+    onJoinButtonClicked(): void;
+    onRejectButtonClicked(): void;
+}
+
+const SpacePreview = ({ space, onJoinButtonClicked, onRejectButtonClicked }: ISpacePreviewProps) => {
     const cli = useContext(MatrixClientContext);
     const myMembership = useMyRoomMembership(space);
 
@@ -270,8 +300,18 @@ const SpacePreview = ({ space, onJoinButtonClicked, onRejectButtonClicked }) =>
         </div>;
     }
 
+    let migratedCommunitySection: JSX.Element;
+    const createContent = space.currentState.getStateEvents(EventType.RoomCreate, "")?.getContent();
+    if (createContent[CreateEventField]) {
+        migratedCommunitySection = <div className="mx_SpaceRoomView_preview_migratedCommunity">
+            { _t("Created from <Community />", {}, {
+                Community: () => <GroupTile groupId={createContent[CreateEventField]} />,
+            }) }
+        </div>;
+    }
+
     return <div className="mx_SpaceRoomView_preview">
-        <BetaPill onClick={onBetaClick} />
+        { migratedCommunitySection }
         { inviterSection }
         <RoomAvatar room={space} height={80} width={80} viewAvatarOnClick={true} />
         <h1 className="mx_SpaceRoomView_preview_name">

src/components/views/context_menus/TagTileContextMenu.js

@@ -24,6 +24,8 @@ import { MenuItem } from "../../structures/ContextMenu";
 import MatrixClientContext from "../../../contexts/MatrixClientContext";
 import { replaceableComponent } from "../../../utils/replaceableComponent";
 import GroupFilterOrderStore from "../../../stores/GroupFilterOrderStore";
+import { createSpaceFromCommunity } from "../../../utils/space";
+import GroupStore from "../../../stores/GroupStore";
 
 @replaceableComponent("views.context_menus.TagTileContextMenu")
 export default class TagTileContextMenu extends React.Component {
@@ -49,6 +51,11 @@ export default class TagTileContextMenu extends React.Component {
         this.props.onFinished();
     };
 
+    _onCreateSpaceClick = () => {
+        createSpaceFromCommunity(this.context, this.props.tag);
+        this.props.onFinished();
+    };
+
     _onMoveUp = () => {
         dis.dispatch(TagOrderActions.moveTag(this.context, this.props.tag, this.props.index - 1));
         this.props.onFinished();
@@ -77,6 +84,16 @@ export default class TagTileContextMenu extends React.Component {
             );
         }
 
+        let createSpaceOption;
+        if (GroupStore.isUserPrivileged(this.props.tag)) {
+            createSpaceOption = <>
+                <hr className="mx_TagTileContextMenu_separator" role="separator" />
+                <MenuItem className="mx_TagTileContextMenu_item mx_TagTileContextMenu_createSpace" onClick={this._onCreateSpaceClick}>
+                    { _t("Create Space") }
+                </MenuItem>
+            </>;
+        }
+
         return <div>
             <MenuItem className="mx_TagTileContextMenu_item mx_TagTileContextMenu_viewCommunity" onClick={this._onViewCommunityClick}>
                 { _t('View Community') }
@@ -88,6 +105,7 @@ export default class TagTileContextMenu extends React.Component {
             <MenuItem className="mx_TagTileContextMenu_item mx_TagTileContextMenu_hideCommunity" onClick={this._onRemoveClick}>
                 { _t("Unpin") }
             </MenuItem>
+            { createSpaceOption }
         </div>;
     }
 }

src/components/views/dialogs/CreateSpaceFromCommunityDialog.tsx

@@ -0,0 +1,338 @@
+/*
+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, { useEffect, useRef, useState } from "react";
+import { JoinRule } from "matrix-js-sdk/src/@types/partials";
+import { EventType } from "matrix-js-sdk/src/@types/event";
+import { MatrixClient } from "matrix-js-sdk/src/matrix";
+
+import { _t } from '../../../languageHandler';
+import BaseDialog from "./BaseDialog";
+import AccessibleButton from "../elements/AccessibleButton";
+import { createSpace, SpaceCreateForm } from "../spaces/SpaceCreateMenu";
+import JoinRuleDropdown from "../elements/JoinRuleDropdown";
+import Field from "../elements/Field";
+import RoomAliasField from "../elements/RoomAliasField";
+import { GroupMember } from "../right_panel/UserInfo";
+import { parseMembersResponse, parseRoomsResponse } from "../../../stores/GroupStore";
+import { calculateRoomVia, makeRoomPermalink } from "../../../utils/permalinks/Permalinks";
+import { useAsyncMemo } from "../../../hooks/useAsyncMemo";
+import Spinner from "../elements/Spinner";
+import { mediaFromMxc } from "../../../customisations/Media";
+import SpaceStore from "../../../stores/SpaceStore";
+import Modal from "../../../Modal";
+import InfoDialog from "./InfoDialog";
+import dis from "../../../dispatcher/dispatcher";
+import { Action } from "../../../dispatcher/actions";
+import { UserTab } from "./UserSettingsDialog";
+import TagOrderActions from "../../../actions/TagOrderActions";
+
+interface IProps {
+    matrixClient: MatrixClient;
+    groupId: string;
+    onFinished(spaceId?: string): void;
+}
+
+export const CreateEventField = "io.element.migrated_from_community";
+
+interface IGroupRoom {
+    displayname: string;
+    name?: string;
+    roomId: string;
+    canonicalAlias?: string;
+    avatarUrl?: string;
+    topic?: string;
+    numJoinedMembers?: number;
+    worldReadable?: boolean;
+    guestCanJoin?: boolean;
+    isPublic?: boolean;
+}
+
+/* eslint-disable camelcase */
+export interface IGroupSummary {
+    profile: {
+        avatar_url?: string;
+        is_openly_joinable?: boolean;
+        is_public?: boolean;
+        long_description: string;
+        name: string;
+        short_description: string;
+    };
+    rooms_section: {
+        rooms: unknown[];
+        categories: Record<string, unknown>;
+        total_room_count_estimate: number;
+    };
+    user: {
+        is_privileged: boolean;
+        is_public: boolean;
+        is_publicised: boolean;
+        membership: string;
+    };
+    users_section: {
+        users: unknown[];
+        roles: Record<string, unknown>;
+        total_user_count_estimate: number;
+    };
+}
+/* eslint-enable camelcase */
+
+const CreateSpaceFromCommunityDialog: React.FC<IProps> = ({ matrixClient: cli, groupId, onFinished }) => {
+    const [loading, setLoading] = useState(true);
+    const [error, setError] = useState<string>(null);
+    const [busy, setBusy] = useState(false);
+
+    const [avatar, setAvatar] = useState<File>(null); // undefined means to remove avatar
+    const [name, setName] = useState("");
+    const spaceNameField = useRef<Field>();
+    const [alias, setAlias] = useState("#" + groupId.substring(1, groupId.indexOf(":")) + ":" + cli.getDomain());
+    const spaceAliasField = useRef<RoomAliasField>();
+    const [topic, setTopic] = useState("");
+    const [joinRule, setJoinRule] = useState<JoinRule>(JoinRule.Public);
+
+    const groupSummary = useAsyncMemo<IGroupSummary>(() => cli.getGroupSummary(groupId), [groupId]);
+    useEffect(() => {
+        if (groupSummary) {
+            setName(groupSummary.profile.name || "");
+            setTopic(groupSummary.profile.short_description || "");
+            setJoinRule(groupSummary.profile.is_openly_joinable ? JoinRule.Public : JoinRule.Invite);
+            setLoading(false);
+        }
+    }, [groupSummary]);
+
+    if (loading) {
+        return <Spinner />;
+    }
+
+    const onCreateSpaceClick = async (e) => {
+        e.preventDefault();
+        if (busy) return;
+
+        setError(null);
+        setBusy(true);
+
+        // require & validate the space name field
+        if (!await spaceNameField.current.validate({ allowEmpty: false })) {
+            setBusy(false);
+            spaceNameField.current.focus();
+            spaceNameField.current.validate({ allowEmpty: false, focused: true });
+            return;
+        }
+        // validate the space name alias field but do not require it
+        if (joinRule === JoinRule.Public && !await spaceAliasField.current.validate({ allowEmpty: true })) {
+            setBusy(false);
+            spaceAliasField.current.focus();
+            spaceAliasField.current.validate({ allowEmpty: true, focused: true });
+            return;
+        }
+
+        try {
+            const [rooms, members, invitedMembers] = await Promise.all([
+                cli.getGroupRooms(groupId).then(parseRoomsResponse) as Promise<IGroupRoom[]>,
+                cli.getGroupUsers(groupId).then(parseMembersResponse) as Promise<GroupMember[]>,
+                cli.getGroupInvitedUsers(groupId).then(parseMembersResponse) as Promise<GroupMember[]>,
+            ]);
+
+            const viaMap = new Map<string, string[]>();
+            for (const { roomId, canonicalAlias } of rooms) {
+                const room = cli.getRoom(roomId);
+                if (room) {
+                    viaMap.set(roomId, calculateRoomVia(room));
+                } else if (canonicalAlias) {
+                    try {
+                        const { servers } = await cli.getRoomIdForAlias(canonicalAlias);
+                        viaMap.set(roomId, servers);
+                    } catch (e) {
+                        console.warn("Failed to resolve alias during community migration", e);
+                    }
+                }
+
+                if (!viaMap.get(roomId)?.length) {
+                    // XXX: lets guess the via, this might end up being incorrect.
+                    const str = canonicalAlias || roomId;
+                    viaMap.set(roomId, [str.substring(1, str.indexOf(":"))]);
+                }
+            }
+
+            const spaceAvatar = avatar !== undefined ? avatar : groupSummary.profile.avatar_url;
+            const roomId = await createSpace(name, joinRule === JoinRule.Public, alias, topic, spaceAvatar, {
+                creation_content: {
+                    [CreateEventField]: groupId,
+                },
+                initial_state: rooms.map(({ roomId }) => ({
+                    type: EventType.SpaceChild,
+                    state_key: roomId,
+                    content: {
+                        via: viaMap.get(roomId) || [],
+                    },
+                })),
+                invite: [...members, ...invitedMembers].map(m => m.userId).filter(m => m !== cli.getUserId()),
+            }, {
+                andView: false,
+            });
+
+            // eagerly remove it from the community panel
+            dis.dispatch(TagOrderActions.removeTag(cli, groupId));
+
+            // don't bother awaiting this, as we don't hugely care if it fails
+            cli.setGroupProfile(groupId, {
+                ...groupSummary.profile,
+                long_description: `<a href="${makeRoomPermalink(roomId)}"><h1>` +
+                    _t("This community has been upgraded into a Space") + `</h1></a><br />`
+                    + groupSummary.profile.long_description,
+            } as IGroupSummary["profile"]).catch(e => {
+                console.warn("Failed to update community profile during migration", e);
+            });
+
+            onFinished(roomId);
+
+            const onSpaceClick = () => {
+                dis.dispatch({
+                    action: "view_room",
+                    room_id: roomId,
+                });
+            };
+
+            const onPreferencesClick = () => {
+                dis.dispatch({
+                    action: Action.ViewUserSettings,
+                    initialTabId: UserTab.Preferences,
+                });
+            };
+
+            let spacesDisabledCopy;
+            if (!SpaceStore.spacesEnabled) {
+                spacesDisabledCopy = _t("To view Spaces, hide communities in <a>Preferences</a>", {}, {
+                    a: sub => <AccessibleButton onClick={onPreferencesClick} kind="link">{ sub }</AccessibleButton>,
+                });
+            }
+
+            Modal.createDialog(InfoDialog, {
+                title: _t("Space created"),
+                description: <>
+                    <div className="mx_CreateSpaceFromCommunityDialog_SuccessInfoDialog_checkmark" />
+                    <p>
+                        { _t("<SpaceName/> has been made and everyone who was a part of the community has " +
+                            "been invited to it.", {}, {
+                            SpaceName: () => <AccessibleButton onClick={onSpaceClick} kind="link">
+                                { name }
+                            </AccessibleButton>,
+                        }) }
+                        &nbsp;
+                        { spacesDisabledCopy }
+                    </p>
+                    <p>
+                        { _t("To create a Space from another community, just pick the community in Preferences.") }
+                    </p>
+                </>,
+                button: _t("Preferences"),
+                onFinished: (openPreferences: boolean) => {
+                    if (openPreferences) {
+                        onPreferencesClick();
+                    }
+                },
+            }, "mx_CreateSpaceFromCommunityDialog_SuccessInfoDialog");
+        } catch (e) {
+            console.error(e);
+            setError(e);
+        }
+
+        setBusy(false);
+    };
+
+    let footer;
+    if (error) {
+        footer = <>
+            <img src={require("../../../../res/img/element-icons/warning-badge.svg")} height="24" width="24" alt="" />
+
+            <span className="mx_CreateSpaceFromCommunityDialog_error">
+                <div className="mx_CreateSpaceFromCommunityDialog_errorHeading">{ _t("Failed to migrate community") }</div>
+                <div className="mx_CreateSpaceFromCommunityDialog_errorCaption">{ _t("Try again") }</div>
+            </span>
+
+            <AccessibleButton className="mx_CreateSpaceFromCommunityDialog_retryButton" onClick={onCreateSpaceClick}>
+                { _t("Retry") }
+            </AccessibleButton>
+        </>;
+    } else {
+        footer = <>
+            <AccessibleButton kind="primary_outline" disabled={busy} onClick={() => onFinished()}>
+                { _t("Cancel") }
+            </AccessibleButton>
+            <AccessibleButton kind="primary" disabled={busy} onClick={onCreateSpaceClick}>
+                { busy ? _t("Creating...") : _t("Create Space") }
+            </AccessibleButton>
+        </>;
+    }
+
+    return <BaseDialog
+        title={_t("Create Space from community")}
+        className="mx_CreateSpaceFromCommunityDialog"
+        onFinished={onFinished}
+        fixedWidth={false}
+    >
+        <div className="mx_CreateSpaceFromCommunityDialog_content">
+            <p>
+                { _t("Spaces are the new version of communities - with new features coming.") }
+                &nbsp;
+                { _t("All rooms will automatically be added, a link to the Space will be " +
+                    "added to your old community description and all community members will be invited.") }
+            </p>
+            <p className="mx_CreateSpaceFromCommunityDialog_flairNotice">
+                { _t("Flair won't be available in Spaces for the foreseeable future.") }
+            </p>
+
+            <SpaceCreateForm
+                busy={busy}
+                onSubmit={onCreateSpaceClick}
+                avatarUrl={groupSummary.profile.avatar_url
+                    ? mediaFromMxc(groupSummary.profile.avatar_url).getThumbnailOfSourceHttp(80, 80, "crop")
+                    : undefined
+                }
+                setAvatar={setAvatar}
+                name={name}
+                setName={setName}
+                nameFieldRef={spaceNameField}
+                topic={topic}
+                setTopic={setTopic}
+                alias={alias}
+                setAlias={setAlias}
+                showAliasField={joinRule === JoinRule.Public}
+                aliasFieldRef={spaceAliasField}
+            >
+                <p>{ _t("This description will be shown to people when they view your space") }</p>
+                <JoinRuleDropdown
+                    label={_t("Space visibility")}
+                    labelInvite={_t("Private space (invite only)")}
+                    labelPublic={_t("Public space")}
+                    value={joinRule}
+                    onChange={setJoinRule}
+                />
+                <p>{ joinRule === JoinRule.Public
+                    ? _t("Open space for anyone, best for communities")
+                    : _t("Invite only, best for yourself or teams")
+                }</p>
+            </SpaceCreateForm>
+        </div>
+
+        <div className="mx_CreateSpaceFromCommunityDialog_footer">
+            { footer }
+        </div>
+    </BaseDialog>;
+};
+
+export default CreateSpaceFromCommunityDialog;
+

src/components/views/dialogs/CreateSubspaceDialog.tsx

@@ -16,8 +16,7 @@ limitations under the License.
 
 import React, { useRef, useState } from "react";
 import { Room } from "matrix-js-sdk/src/models/room";
-import { JoinRule, Preset } from "matrix-js-sdk/src/@types/partials";
+import { JoinRule } from "matrix-js-sdk/src/@types/partials";
-import { RoomType } from "matrix-js-sdk/src/@types/event";
 
 import { _t } from '../../../languageHandler';
 import BaseDialog from "./BaseDialog";
@@ -27,8 +26,7 @@ import { BetaPill } from "../beta/BetaCard";
 import Field from "../elements/Field";
 import RoomAliasField from "../elements/RoomAliasField";
 import SpaceStore from "../../../stores/SpaceStore";
-import { SpaceCreateForm } from "../spaces/SpaceCreateMenu";
+import { createSpace, SpaceCreateForm } from "../spaces/SpaceCreateMenu";
-import createRoom from "../../../createRoom";
 import { SubspaceSelector } from "./AddExistingToSpaceDialog";
 import JoinRuleDropdown from "../elements/JoinRuleDropdown";
 
@@ -81,28 +79,7 @@ const CreateSubspaceDialog: React.FC<IProps> = ({ space, onAddExistingSpaceClick
         }
 
         try {
-            await createRoom({
+            await createSpace(name, joinRule === JoinRule.Public, alias, topic, avatar, {}, { parentSpace });
-                createOpts: {
-                    preset: joinRule === JoinRule.Public ? Preset.PublicChat : Preset.PrivateChat,
-                    name,
-                    power_level_content_override: {
-                        // Only allow Admins to write to the timeline to prevent hidden sync spam
-                        events_default: 100,
-                        ...joinRule === JoinRule.Public ? { invite: 0 } : {},
-                    },
-                    room_alias_name: joinRule === JoinRule.Public && alias
-                        ? alias.substr(1, alias.indexOf(":") - 1)
-                        : undefined,
-                    topic,
-                },
-                avatar,
-                roomType: RoomType.Space,
-                parentSpace,
-                spinner: false,
-                encryption: false,
-                andView: true,
-                inlineErrors: true,
-            });
 
             onFinished(true);
         } catch (e) {

src/components/views/dialogs/UserSettingsDialog.tsx

@@ -114,7 +114,7 @@ export default class UserSettingsDialog extends React.Component<IProps, IState>
             UserTab.Preferences,
             _td("Preferences"),
             "mx_UserSettingsDialog_preferencesIcon",
-            <PreferencesUserSettingsTab />,
+            <PreferencesUserSettingsTab closeSettingsFn={this.props.onFinished} />,
         ));
 
         if (SettingsStore.getValue(UIFeature.Voip)) {

src/components/views/right_panel/UserInfo.tsx

@@ -851,7 +851,7 @@ const RoomAdminToolsContainer: React.FC<IBaseRoomProps> = ({
     return <div />;
 };
 
-interface GroupMember {
+export interface GroupMember {
     userId: string;
     displayname?: string; // XXX: GroupMember objects are inconsistent :((
     avatarUrl?: string;

src/components/views/settings/tabs/user/PreferencesUserSettingsTab.tsx

@@ -15,7 +15,9 @@ See the License for the specific language governing permissions and
 limitations under the License.
 */
 
-import React from 'react';
+import React, { useContext, useEffect, useState } from 'react';
+import { EventType } from 'matrix-js-sdk/src/@types/event';
+
 import { _t } from "../../../../../languageHandler";
 import LabelledToggleSwitch from "../../../elements/LabelledToggleSwitch";
 import SettingsStore from "../../../../../settings/SettingsStore";
@@ -27,6 +29,18 @@ import SettingsFlag from '../../../elements/SettingsFlag';
 import * as KeyboardShortcuts from "../../../../../accessibility/KeyboardShortcuts";
 import AccessibleButton from "../../../elements/AccessibleButton";
 import SpaceStore from "../../../../../stores/SpaceStore";
+import GroupAvatar from "../../../avatars/GroupAvatar";
+import dis from "../../../../../dispatcher/dispatcher";
+import GroupActions from "../../../../../actions/GroupActions";
+import MatrixClientContext from "../../../../../contexts/MatrixClientContext";
+import { useDispatcher } from "../../../../../hooks/useDispatcher";
+import { CreateEventField, IGroupSummary } from "../../../dialogs/CreateSpaceFromCommunityDialog";
+import { createSpaceFromCommunity } from "../../../../../utils/space";
+import Spinner from "../../../elements/Spinner";
+
+interface IProps {
+    closeSettingsFn(success: boolean): void;
+}
 
 interface IState {
     autoLaunch: boolean;
@@ -42,8 +56,86 @@ interface IState {
     readMarkerOutOfViewThresholdMs: string;
 }
 
+type Community = IGroupSummary & {
+    groupId: string;
+    spaceId?: string;
+};
+
+const CommunityMigrator = ({ onFinished }) => {
+    const cli = useContext(MatrixClientContext);
+    const [communities, setCommunities] = useState<Community[]>(null);
+    useEffect(() => {
+        dis.dispatch(GroupActions.fetchJoinedGroups(cli));
+    }, [cli]);
+    useDispatcher(dis, async payload => {
+        if (payload.action === "GroupActions.fetchJoinedGroups.success") {
+            const communities: Community[] = [];
+
+            const migratedSpaceMap = new Map(cli.getRooms().map(room => {
+                const createContent = room.currentState.getStateEvents(EventType.RoomCreate, "")?.getContent();
+                if (createContent?.[CreateEventField]) {
+                    return [createContent[CreateEventField], room.roomId] as [string, string];
+                }
+            }).filter(Boolean));
+
+            for (const groupId of payload.result.groups) {
+                const summary = await cli.getGroupSummary(groupId) as IGroupSummary;
+                if (summary.user.is_privileged) {
+                    communities.push({
+                        ...summary,
+                        groupId,
+                        spaceId: migratedSpaceMap.get(groupId),
+                    });
+                }
+            }
+
+            setCommunities(communities);
+        }
+    });
+
+    if (!communities) {
+        return <Spinner />;
+    }
+
+    return <div className="mx_PreferencesUserSettingsTab_CommunityMigrator">
+        { communities.map(community => (
+            <div key={community.groupId}>
+                <GroupAvatar
+                    groupId={community.groupId}
+                    groupAvatarUrl={community.profile.avatar_url}
+                    groupName={community.profile.name}
+                    width={32}
+                    height={32}
+                />
+                { community.profile.name }
+                <AccessibleButton
+                    kind="primary_outline"
+                    onClick={() => {
+                        if (community.spaceId) {
+                            dis.dispatch({
+                                action: "view_room",
+                                room_id: community.spaceId,
+                            });
+                            onFinished();
+                        } else {
+                            createSpaceFromCommunity(cli, community.groupId).then(([spaceId]) => {
+                                if (spaceId) {
+                                    community.spaceId = spaceId;
+                                    setCommunities([...communities]); // force component re-render
+                                }
+                            });
+                        }
+                    }}
+                >
+                    { community.spaceId ? _t("Open Space") : _t("Create Space") }
+                </AccessibleButton>
+            </div>
+        )) }
+    </div>;
+};
+
 @replaceableComponent("views.settings.tabs.user.PreferencesUserSettingsTab")
-export default class PreferencesUserSettingsTab extends React.Component<{}, IState> {
+export default class PreferencesUserSettingsTab extends React.Component<IProps, IState> {
     static ROOM_LIST_SETTINGS = [
         'breadcrumbs',
     ];
@@ -52,6 +144,10 @@ export default class PreferencesUserSettingsTab extends React.Component<{}, ISta
         "Spaces.allRoomsInHome",
     ];
 
+    static COMMUNITIES_SETTINGS = [
+        // TODO: part of delabsing move the toggle here - https://github.com/vector-im/element-web/issues/18088
+    ];
+
     static KEYBINDINGS_SETTINGS = [
         'ctrlFForSearch',
     ];
@@ -242,6 +338,19 @@ export default class PreferencesUserSettingsTab extends React.Component<{}, ISta
                     { this.renderGroup(PreferencesUserSettingsTab.SPACES_SETTINGS) }
                 </div> }
 
+                <div className="mx_SettingsTab_section">
+                    <span className="mx_SettingsTab_subheading">{ _t("Communities") }</span>
+                    <p>{ _t("Communities have been archived to make way for Spaces but you can convert your " +
+                        "communities into Spaces below. Converting will ensure your conversations get the latest " +
+                        "features.") }</p>
+                    <details>
+                        <summary>{ _t("Show my Communities") }</summary>
+                        <p>{ _t("If a community isn't shown you may not have permission to convert it.") }</p>
+                        <CommunityMigrator onFinished={this.props.closeSettingsFn} />
+                    </details>
+                    { this.renderGroup(PreferencesUserSettingsTab.COMMUNITIES_SETTINGS) }
+                </div>
+
                 <div className="mx_SettingsTab_section">
                     <span className="mx_SettingsTab_subheading">{ _t("Keyboard shortcuts") }</span>
                     <AccessibleButton className="mx_SettingsFlag" onClick={KeyboardShortcuts.toggleDialog}>

src/components/views/spaces/SpaceCreateMenu.tsx

@@ -18,22 +18,59 @@ import React, { ComponentProps, RefObject, SyntheticEvent, useContext, useRef, u
 import classNames from "classnames";
 import { RoomType } from "matrix-js-sdk/src/@types/event";
 import FocusLock from "react-focus-lock";
+import { HistoryVisibility, Preset } from "matrix-js-sdk/src/@types/partials";
+import { ICreateRoomOpts } from "matrix-js-sdk/src/@types/requests";
 
 import { _t } from "../../../languageHandler";
 import AccessibleTooltipButton from "../elements/AccessibleTooltipButton";
 import { ChevronFace, ContextMenu } from "../../structures/ContextMenu";
-import createRoom from "../../../createRoom";
+import createRoom, { IOpts as ICreateOpts } from "../../../createRoom";
 import MatrixClientContext from "../../../contexts/MatrixClientContext";
 import SpaceBasicSettings, { SpaceAvatar } from "./SpaceBasicSettings";
 import AccessibleButton from "../elements/AccessibleButton";
 import Field from "../elements/Field";
 import withValidation from "../elements/Validation";
-import { HistoryVisibility, Preset } from "matrix-js-sdk/src/@types/partials";
 import RoomAliasField from "../elements/RoomAliasField";
 import SdkConfig from "../../../SdkConfig";
 import Modal from "../../../Modal";
 import GenericFeatureFeedbackDialog from "../dialogs/GenericFeatureFeedbackDialog";
 import SettingsStore from "../../../settings/SettingsStore";
+import defaultDispatcher from "../../../dispatcher/dispatcher";
+import { Action } from "../../../dispatcher/actions";
+import { UserTab } from "../dialogs/UserSettingsDialog";
+
+export const createSpace = async (
+    name: string,
+    isPublic: boolean,
+    alias?: string,
+    topic?: string,
+    avatar?: string | File,
+    createOpts: Partial<ICreateRoomOpts> = {},
+    otherOpts: Partial<Omit<ICreateOpts, "createOpts">> = {},
+) => {
+    return createRoom({
+        createOpts: {
+            name,
+            preset: isPublic ? Preset.PublicChat : Preset.PrivateChat,
+            power_level_content_override: {
+                // Only allow Admins to write to the timeline to prevent hidden sync spam
+                events_default: 100,
+                ...isPublic ? { invite: 0 } : {},
+            },
+            room_alias_name: isPublic && alias ? alias.substr(1, alias.indexOf(":") - 1) : undefined,
+            topic,
+            ...createOpts,
+        },
+        avatar,
+        roomType: RoomType.Space,
+        historyVisibility: isPublic ? HistoryVisibility.WorldReadable : HistoryVisibility.Invited,
+        spinner: false,
+        encryption: false,
+        andView: true,
+        inlineErrors: true,
+        ...otherOpts,
+    });
+};
 
 const SpaceCreateMenuType = ({ title, description, className, onClick }) => {
     return (
@@ -92,7 +129,7 @@ export const SpaceFeedbackPrompt = ({ onClick }: { onClick?: () => void }) => {
     </div>;
 };
 
-type BProps = Pick<ComponentProps<typeof SpaceBasicSettings>, "setAvatar" | "name" | "setName" | "topic" | "setTopic">;
+type BProps = Omit<ComponentProps<typeof SpaceBasicSettings>, "nameDisabled" | "topicDisabled" | "avatarDisabled">;
 interface ISpaceCreateFormProps extends BProps {
     busy: boolean;
     alias: string;
@@ -106,6 +143,7 @@ interface ISpaceCreateFormProps extends BProps {
 export const SpaceCreateForm: React.FC<ISpaceCreateFormProps> = ({
     busy,
     onSubmit,
+    avatarUrl,
     setAvatar,
     name,
     setName,
@@ -122,7 +160,7 @@ export const SpaceCreateForm: React.FC<ISpaceCreateFormProps> = ({
     const domain = cli.getDomain();
 
     return <form className="mx_SpaceBasicSettings" onSubmit={onSubmit}>
-        <SpaceAvatar setAvatar={setAvatar} avatarDisabled={busy} />
+        <SpaceAvatar avatarUrl={avatarUrl} setAvatar={setAvatar} avatarDisabled={busy} />
 
         <Field
             name="spaceName"
@@ -200,30 +238,7 @@ const SpaceCreateMenu = ({ onFinished }) => {
         }
 
         try {
-            await createRoom({
+            await createSpace(name, visibility === Visibility.Public, alias, topic, avatar);
-                createOpts: {
-                    preset: visibility === Visibility.Public ? Preset.PublicChat : Preset.PrivateChat,
-                    name,
-                    power_level_content_override: {
-                        // Only allow Admins to write to the timeline to prevent hidden sync spam
-                        events_default: 100,
-                        ...visibility === Visibility.Public ? { invite: 0 } : {},
-                    },
-                    room_alias_name: visibility === Visibility.Public && alias
-                        ? alias.substr(1, alias.indexOf(":") - 1)
-                        : undefined,
-                    topic,
-                },
-                avatar,
-                roomType: RoomType.Space,
-                historyVisibility: visibility === Visibility.Public
-                    ? HistoryVisibility.WorldReadable
-                    : HistoryVisibility.Invited,
-                spinner: false,
-                encryption: false,
-                andView: true,
-                inlineErrors: true,
-            });
 
             onFinished();
         } catch (e) {
@@ -233,10 +248,23 @@ const SpaceCreateMenu = ({ onFinished }) => {
 
     let body;
     if (visibility === null) {
+        const onCreateSpaceFromCommunityClick = () => {
+            defaultDispatcher.dispatch({
+                action: Action.ViewUserSettings,
+                initialTabId: UserTab.Preferences,
+            });
+            onFinished();
+        };
+
         body = <React.Fragment>
             <h2>{ _t("Create a space") }</h2>
-            <p>{ _t("Spaces are a new way to group rooms and people. " +
+            <p>
-                "To join an existing space you'll need an invite.") }</p>
+                { _t("Spaces are a new way to group rooms and people.") }
+                &nbsp;
+                { _t("What kind of Space do you want to create?") }
+                &nbsp;
+                { _t("You can change this later.") }
+            </p>
 
             <SpaceCreateMenuType
                 title={_t("Public")}
@@ -251,7 +279,15 @@ const SpaceCreateMenu = ({ onFinished }) => {
                 onClick={() => setVisibility(Visibility.Private)}
             />
 
-            <p>{ _t("You can change this later") }</p>
+            <p>
+                { _t("You can also create a Space from a <a>community</a>.", {}, {
+                    a: sub => <AccessibleButton kind="link" onClick={onCreateSpaceFromCommunityClick}>
+                        { sub }
+                    </AccessibleButton>,
+                }) }
+                &nbsp;
+                { _t("To join an existing space you'll need an invite") }
+            </p>
 
             <SpaceFeedbackPrompt onClick={onFinished} />
         </React.Fragment>;

src/i18n/strings/en_EN.json

@@ -1027,12 +1027,14 @@
     "e.g. my-space": "e.g. my-space",
     "Address": "Address",
     "Create a space": "Create a space",
-    "Spaces are a new way to group rooms and people. To join an existing space you'll need an invite.": "Spaces are a new way to group rooms and people. To join an existing space you'll need an invite.",
+    "What kind of Space do you want to create?": "What kind of Space do you want to create?",
+    "You can change this later.": "You can change this later.",
     "Public": "Public",
     "Open space for anyone, best for communities": "Open space for anyone, best for communities",
     "Private": "Private",
     "Invite only, best for yourself or teams": "Invite only, best for yourself or teams",
-    "You can change this later": "You can change this later",
+    "You can also create a Space from a <a>community</a>.": "You can also create a Space from a <a>community</a>.",
+    "To join an existing space you'll need an invite": "To join an existing space you'll need an invite",
     "Go back": "Go back",
     "Your public space": "Your public space",
     "Your private space": "Your private space",
@@ -1333,12 +1335,18 @@
     "If this isn't what you want, please use a different tool to ignore users.": "If this isn't what you want, please use a different tool to ignore users.",
     "Room ID or address of ban list": "Room ID or address of ban list",
     "Subscribe": "Subscribe",
+    "Open Space": "Open Space",
+    "Create Space": "Create Space",
     "Start automatically after system login": "Start automatically after system login",
     "Warn before quitting": "Warn before quitting",
     "Always show the window menu bar": "Always show the window menu bar",
     "Show tray icon and minimize window to it on close": "Show tray icon and minimize window to it on close",
     "Preferences": "Preferences",
     "Room list": "Room list",
+    "Communities": "Communities",
+    "Communities have been archived to make way for Spaces but you can convert your communities into Spaces below. Converting will ensure your conversations get the latest features.": "Communities have been archived to make way for Spaces but you can convert your communities into Spaces below. Converting will ensure your conversations get the latest features.",
+    "Show my Communities": "Show my Communities",
+    "If a community isn't shown you may not have permission to convert it.": "If a community isn't shown you may not have permission to convert it.",
     "Keyboard shortcuts": "Keyboard shortcuts",
     "To view all keyboard shortcuts, click here.": "To view all keyboard shortcuts, click here.",
     "Displaying time": "Displaying time",
@@ -2222,13 +2230,24 @@
     "Visible to space members": "Visible to space members",
     "Block anyone not part of %(serverName)s from ever joining this room.": "Block anyone not part of %(serverName)s from ever joining this room.",
     "Create Room": "Create Room",
+    "This community has been upgraded into a Space": "This community has been upgraded into a Space",
+    "To view Spaces, hide communities in <a>Preferences</a>": "To view Spaces, hide communities in <a>Preferences</a>",
+    "Space created": "Space created",
+    "<SpaceName/> has been made and everyone who was a part of the community has been invited to it.": "<SpaceName/> has been made and everyone who was a part of the community has been invited to it.",
+    "To create a Space from another community, just pick the community in Preferences.": "To create a Space from another community, just pick the community in Preferences.",
+    "Failed to migrate community": "Failed to migrate community",
+    "Create Space from community": "Create Space from community",
+    "Spaces are the new version of communities - with new features coming.": "Spaces are the new version of communities - with new features coming.",
+    "All rooms will automatically be added, a link to the Space will be added to your old community description and all community members will be invited.": "All rooms will automatically be added, a link to the Space will be added to your old community description and all community members will be invited.",
+    "Flair won't be available in Spaces for the foreseeable future.": "Flair won't be available in Spaces for the foreseeable future.",
+    "This description will be shown to people when they view your space": "This description will be shown to people when they view your space",
+    "Space visibility": "Space visibility",
+    "Private space (invite only)": "Private space (invite only)",
+    "Public space": "Public space",
     "Anyone in <SpaceName/> will be able to find and join.": "Anyone in <SpaceName/> will be able to find and join.",
     "Anyone will be able to find and join this space, not just members of <SpaceName/>.": "Anyone will be able to find and join this space, not just members of <SpaceName/>.",
     "Only people invited will be able to find and join this space.": "Only people invited will be able to find and join this space.",
     "Add a space to a space you manage.": "Add a space to a space you manage.",
-    "Space visibility": "Space visibility",
-    "Private space (invite only)": "Private space (invite only)",
-    "Public space": "Public space",
     "Want to add an existing space instead?": "Want to add an existing space instead?",
     "Adding...": "Adding...",
     "Sign out": "Sign out",
@@ -2680,7 +2699,6 @@
     "You must join the room to see its files": "You must join the room to see its files",
     "No files visible in this room": "No files visible in this room",
     "Attach files from chat or just drag and drop them anywhere in a room.": "Attach files from chat or just drag and drop them anywhere in a room.",
-    "Communities": "Communities",
     "Create community": "Create community",
     "<h1>HTML for your community's page</h1>\n<p>\n    Use the long description to introduce new members to the community, or distribute\n    some important <a href=\"foo\">links</a>\n</p>\n<p>\n    You can even add images with Matrix URLs <img src=\"mxc://url\" />\n</p>\n": "<h1>HTML for your community's page</h1>\n<p>\n    Use the long description to introduce new members to the community, or distribute\n    some important <a href=\"foo\">links</a>\n</p>\n<p>\n    You can even add images with Matrix URLs <img src=\"mxc://url\" />\n</p>\n",
     "Add rooms to the community summary": "Add rooms to the community summary",
@@ -2708,6 +2726,10 @@
     "Community Settings": "Community Settings",
     "Want more than a community? <a>Get your own server</a>": "Want more than a community? <a>Get your own server</a>",
     "Changes made to your community <bold1>name</bold1> and <bold2>avatar</bold2> might not be seen by other users for up to 30 minutes.": "Changes made to your community <bold1>name</bold1> and <bold2>avatar</bold2> might not be seen by other users for up to 30 minutes.",
+    "Communities can now be made into Spaces": "Communities can now be made into Spaces",
+    "Spaces are a new way to make a community, with new features coming.": "Spaces are a new way to make a community, with new features coming.",
+    "Ask the admins of this community to make it into a Space and keep a look out for the invite.": "Ask the admins of this community to make it into a Space and keep a look out for the invite.",
+    "Communities won't receive further updates.": "Communities won't receive further updates.",
     "These rooms are displayed to community members on the community page. Community members can join the rooms by clicking on them.": "These rooms are displayed to community members on the community page. Community members can join the rooms by clicking on them.",
     "Featured Rooms:": "Featured Rooms:",
     "Featured Users:": "Featured Users:",
@@ -2839,6 +2861,7 @@
     "To view %(spaceName)s, turn on the <a>Spaces beta</a>": "To view %(spaceName)s, turn on the <a>Spaces beta</a>",
     "To join %(spaceName)s, turn on the <a>Spaces beta</a>": "To join %(spaceName)s, turn on the <a>Spaces beta</a>",
     "To view %(spaceName)s, you need an invite": "To view %(spaceName)s, you need an invite",
+    "Created from <Community />": "Created from <Community />",
     "Welcome to <name/>": "Welcome to <name/>",
     "Random": "Random",
     "Support": "Support",

src/stores/GroupFilterOrderStore.js

@@ -14,12 +14,14 @@ See the License for the specific language governing permissions and
 limitations under the License.
 */
 import { Store } from 'flux/utils';
+import { EventType } from "matrix-js-sdk/src/@types/event";
 import dis from '../dispatcher/dispatcher';
 import GroupStore from './GroupStore';
 import Analytics from '../Analytics';
 import * as RoomNotifs from "../RoomNotifs";
 import { MatrixClientPeg } from '../MatrixClientPeg';
 import SettingsStore from "../settings/SettingsStore";
+import { CreateEventField } from "../components/views/dialogs/CreateSpaceFromCommunityDialog";
 
 const INITIAL_STATE = {
     orderedTags: null,
@@ -235,8 +237,12 @@ class GroupFilterOrderStore extends Store {
             (t) => (t[0] !== '+' || groupIds.includes(t)) && !removedTags.has(t),
         );
 
+        const cli = MatrixClientPeg.get();
+        const migratedCommunities = new Set(cli.getRooms().map(r => {
+            return r.currentState.getStateEvents(EventType.RoomCreate, "")?.getContent()[CreateEventField];
+        }).filter(Boolean));
         const groupIdsToAdd = groupIds.filter(
-            (groupId) => !tags.includes(groupId) && !removedTags.has(groupId),
+            (groupId) => !tags.includes(groupId) && !removedTags.has(groupId) && !migratedCommunities.has(groupId),
         );
 
         return tagsToKeep.concat(groupIdsToAdd);

src/stores/GroupStore.js

@@ -20,11 +20,11 @@ import FlairStore from './FlairStore';
 import { MatrixClientPeg } from '../MatrixClientPeg';
 import dis from '../dispatcher/dispatcher';
 
-function parseMembersResponse(response) {
+export function parseMembersResponse(response) {
     return response.chunk.map((apiMember) => groupMemberFromApiObject(apiMember));
 }
 
-function parseRoomsResponse(response) {
+export function parseRoomsResponse(response) {
     return response.chunk.map((apiRoom) => groupRoomFromApiObject(apiRoom));
 }
 

src/utils/space.tsx

@@ -17,6 +17,7 @@ limitations under the License.
 import React from "react";
 import { Room } from "matrix-js-sdk/src/models/room";
 import { EventType } from "matrix-js-sdk/src/@types/event";
+import { MatrixClient } from "matrix-js-sdk/src/client";
 
 import { calculateRoomVia } from "./permalinks/Permalinks";
 import Modal from "../Modal";
@@ -37,6 +38,7 @@ import { leaveRoomBehaviour } from "./membership";
 import Spinner from "../components/views/elements/Spinner";
 import dis from "../dispatcher/dispatcher";
 import LeaveSpaceDialog from "../components/views/dialogs/LeaveSpaceDialog";
+import CreateSpaceFromCommunityDialog from "../components/views/dialogs/CreateSpaceFromCommunityDialog";
 
 export const shouldShowSpaceSettings = (space: Room) => {
     const userId = space.client.getUserId();
@@ -173,3 +175,10 @@ export const leaveSpace = (space: Room) => {
         },
     }, "mx_LeaveSpaceDialog_wrapper");
 };
+
+export const createSpaceFromCommunity = (cli: MatrixClient, groupId: string): Promise<[string?]> => {
+    return Modal.createTrackedDialog('Create Space', 'from community', CreateSpaceFromCommunityDialog, {
+        matrixClient: cli,
+        groupId,
+    }, "mx_CreateSpaceFromCommunityDialog_wrapper").finished as Promise<[string?]>;
+};