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fluxer_app/src/components/channel/NewMessagesBar.tsx

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+/*
+ * Copyright (C) 2026 Fluxer Contributors
+ *
+ * This file is part of Fluxer.
+ *
+ * Fluxer is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * Fluxer is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with Fluxer. If not, see <https://www.gnu.org/licenses/>.
+ */
+
+import {useLingui} from '@lingui/react/macro';
+import {CheckIcon} from '@phosphor-icons/react';
+import {observer} from 'mobx-react-lite';
+import MobileLayoutStore from '~/stores/MobileLayoutStore';
+import * as DateUtils from '~/utils/DateUtils';
+import styles from './Messages.module.css';
+
+export const NewMessagesBar = observer(function NewMessagesBar({
+	unreadCount,
+	oldestUnreadTimestamp,
+	isEstimated,
+	onJumpToNewMessages,
+}: {
+	unreadCount: number;
+	oldestUnreadTimestamp: number;
+	isEstimated: boolean;
+	onJumpToNewMessages: () => void;
+}) {
+	const {t} = useLingui();
+
+	const isMobile = MobileLayoutStore.isMobileLayout();
+	const sameDay = DateUtils.isSameDay(oldestUnreadTimestamp);
+	const compactTime = DateUtils.getFormattedCompactDateTime(oldestUnreadTimestamp);
+	const shortTime = sameDay ? DateUtils.getFormattedTime(oldestUnreadTimestamp) : compactTime;
+
+	return (
+		<button type="button" className={styles.newMessagesBar} onClick={onJumpToNewMessages}>
+			<span className={styles.newMessagesBarText}>
+				{isEstimated
+					? isMobile
+						? t`${unreadCount}+ new since ${shortTime}`
+						: t`${unreadCount}+ new messages since ${compactTime}`
+					: isMobile
+						? t`${unreadCount} new since ${shortTime}`
+						: unreadCount === 1
+							? t`${unreadCount} new message since ${compactTime}`
+							: t`${unreadCount} new messages since ${compactTime}`}
+			</span>
+
+			<span className={styles.newMessagesBarAction}>
+				<span>{isMobile ? t`Mark Read` : t`Mark as Read`}</span>
+				<CheckIcon weight="bold" size={16} />
+			</span>
+		</button>
+	);
+});