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cinny/src/app/components/message/ForwardedHeader.tsx
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jaredandClaude Opus 5 5fc90feef9
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feat(forward): Discord-style provenance — 'Forwarded from <sender> in <room> · <time>' with jump to the original
Forwarded events carried no origin at all; they read as the forwarder's own
words. buildForwardContent now stamps io.lotus.forwarded (sender, ts,
room_id, event_id; re-forwards keep the original stamp) and the main and
thread timelines render a reply-style header above the message that jumps
to the original when the viewer is in the source room (sender + time only
otherwise — the source room's name is not leaked). Unit-tested; verified
end to end with Playwright (header text, event content, jump, re-forward).

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01PPmy3tPq869XDW4njjVaKA
2026-09-18 21:07:33 -04:00

72 lines
2.6 KiB
TypeScript

import React, { MouseEventHandler } from 'react';
import { Box, Icon, Icons, Text, as, toRem } from 'folds';
import { MatrixClient } from 'matrix-js-sdk';
import classNames from 'classnames';
import * as css from './Reply.css';
import { ForwardedMeta } from '../../features/room/message/forwardContent';
import { getMemberDisplayName } from '../../utils/room';
import { getMxIdLocalPart } from '../../utils/matrix';
import { timeDayMonYear, timeHourMinute, today, yesterday } from '../../utils/time';
type ForwardedHeaderProps = {
mx: MatrixClient;
meta: ForwardedMeta;
hour24Clock: boolean;
dateFormatString: string;
/** Present when the viewer can open the original (they are in the source room). */
onJump?: MouseEventHandler;
};
/**
* "↪ Forwarded · from <sender> in <room> · <time>" — the provenance line above
* a forwarded message (Gitea: forwards used to look like the forwarder's own
* words). Renders in the same visual slot and style as a reply quote so it
* reads as message context, not as content.
*/
export const ForwardedHeader = as<'div', ForwardedHeaderProps>(
({ mx, meta, hour24Clock, dateFormatString, onJump, className, ...props }, ref) => {
const sourceRoom = meta.room_id ? mx.getRoom(meta.room_id) : null;
const senderName =
(sourceRoom && getMemberDisplayName(sourceRoom, meta.sender)) ??
mx.getUser(meta.sender)?.displayName ??
getMxIdLocalPart(meta.sender) ??
meta.sender;
const ts = meta.origin_server_ts;
const when = today(ts)
? timeHourMinute(ts, hour24Clock)
: yesterday(ts)
? `Yesterday ${timeHourMinute(ts, hour24Clock)}`
: `${timeDayMonYear(ts, dateFormatString)} ${timeHourMinute(ts, hour24Clock)}`;
const canJump = !!sourceRoom && !!onJump;
return (
<Box
as={canJump ? 'button' : 'div'}
className={classNames(css.Reply, className)}
alignItems="Center"
gap="100"
onClick={canJump ? onJump : undefined}
title={canJump ? 'Jump to the original message' : undefined}
aria-label={`Forwarded from ${senderName}${sourceRoom ? ` in ${sourceRoom.name}` : ''}, ${when}`}
{...props}
ref={ref}
>
<Box alignItems="Center" gap="100" shrink="No" style={{ maxWidth: toRem(420) }}>
<Icon size="100" src={Icons.ArrowGoRight} />
<Text size="T300" priority="300" truncate>
Forwarded from <b>{senderName}</b>
{sourceRoom ? (
<>
{' in '}
<b>{sourceRoom.name}</b>
</>
) : null}
{' · '}
{when}
</Text>
</Box>
</Box>
);
},
);