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cinny/src/app/features/create-space/CreateSpaceModal.tsx
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fix(a11y): 36 modal dialogs announce themselves and take focus (#185)
Most modals rendered a folds Dialog/Modal with no role and no name, and
their focus traps used `initialFocus: false`, so focus stayed behind the
modal and a screen reader never announced it.

- 32 dialogs with a visible heading: role="dialog", aria-modal,
  aria-labelledby → the heading (given an id), tabIndex=-1.
- 4 dialogs that already had a name (Leave Room, room topic viewer,
  server ACL, room-nav prompt): role + aria-modal.
- Their focus traps drop `initialFocus: false` for focus-trap's default
  (keep an already-focused autoFocus field, else the first tabbable
  element) with the dialog itself as fallbackFocus, so a dialog without
  a tabbable node can't crash the trap. Traps that live in a parent
  (UIA stages, Logout, Forward, Invite) get the semantics only.
- The file drop overlay is deliberately left alone (not a dialog).

Checked at runtime: Join with Address, Delete Message, Report Message,
Leave Room and Logout open as named dialogs with focus inside and close
with Escape (Tab first when a text field has focus — the shared
stopPropagation keeps Escape from discarding typed text, by design).
The axe e2e spec (6 tests) passes; eslint warnings unchanged (46).
17 modals with no heading (image/file viewers, loading screens) remain.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01PPmy3tPq869XDW4njjVaKA
2026-09-24 13:06:10 -04:00

109 lines
3.3 KiB
TypeScript

import React from 'react';
import {
Box,
config,
Header,
Icon,
IconButton,
Icons,
Modal,
Overlay,
OverlayBackdrop,
OverlayCenter,
Scroll,
Text,
} from 'folds';
import FocusTrap from 'focus-trap-react';
import { useAllJoinedRoomsSet, useGetRoom } from '../../hooks/useGetRoom';
import { SpaceProvider } from '../../hooks/useSpace';
import { CreateSpaceForm } from './CreateSpace';
import {
useCloseCreateSpaceModal,
useCreateSpaceModalState,
} from '../../state/hooks/createSpaceModal';
import { CreateSpaceModalState } from '../../state/createSpaceModal';
import { stopPropagation } from '../../utils/keyboard';
import { useModalStyle } from '../../hooks/useModalStyle';
type CreateSpaceModalProps = {
state: CreateSpaceModalState;
};
function CreateSpaceModal({ state }: CreateSpaceModalProps) {
const { spaceId } = state;
const closeDialog = useCloseCreateSpaceModal();
const modalStyle = useModalStyle(480);
const allJoinedRooms = useAllJoinedRoomsSet();
const getRoom = useGetRoom(allJoinedRooms);
const space = spaceId ? getRoom(spaceId) : undefined;
return (
<SpaceProvider value={space ?? null}>
<Overlay open backdrop={<OverlayBackdrop />}>
<OverlayCenter>
<FocusTrap
focusTrapOptions={{
fallbackFocus: '#createspacemodal-dialog-1',
clickOutsideDeactivates: true,
onDeactivate: closeDialog,
escapeDeactivates: stopPropagation,
}}
>
<Modal
id="createspacemodal-dialog-1"
role="dialog"
aria-modal="true"
aria-labelledby="createspacemodal-dialog-1-title"
tabIndex={-1}
size="300"
flexHeight
style={modalStyle}
>
<Box direction="Column">
<Header
size="500"
style={{
padding: config.space.S200,
paddingLeft: config.space.S400,
borderBottomWidth: config.borderWidth.B300,
}}
>
<Box grow="Yes">
<Text id="createspacemodal-dialog-1-title" as="h2" size="H4">
New Space
</Text>
</Box>
<Box shrink="No">
<IconButton size="300" radii="300" onClick={closeDialog} aria-label="Close">
<Icon src={Icons.Cross} />
</IconButton>
</Box>
</Header>
<Scroll size="300" hideTrack>
<Box
style={{
padding: config.space.S400,
paddingRight: config.space.S200,
}}
direction="Column"
gap="500"
>
<CreateSpaceForm space={space} onCreate={closeDialog} />
</Box>
</Scroll>
</Box>
</Modal>
</FocusTrap>
</OverlayCenter>
</Overlay>
</SpaceProvider>
);
}
export function CreateSpaceModalRenderer() {
const state = useCreateSpaceModalState();
if (!state) return null;
return <CreateSpaceModal state={state} />;
}