element-portable/src/components/views/rooms/NotificationBadge/StatelessNotificationBadge.tsx
Michael Telatynski 76b82b4b2b
Make more code conform to strict null checks (#10219
* Make more code conform to strict null checks

* Fix types

* Fix tests

* Fix remaining test assertions

* Iterate PR
2023-02-24 15:28:40 +00:00

82 lines
2.8 KiB
TypeScript

/*
Copyright 2022 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, { MouseEvent } from "react";
import classNames from "classnames";
import { formatCount } from "../../../../utils/FormattingUtils";
import AccessibleButton from "../../elements/AccessibleButton";
import { NotificationColor } from "../../../../stores/notifications/NotificationColor";
import { useSettingValue } from "../../../../hooks/useSettings";
interface Props {
symbol: string | null;
count: number;
color: NotificationColor;
onClick?: (ev: MouseEvent) => void;
onMouseOver?: (ev: MouseEvent) => void;
onMouseLeave?: (ev: MouseEvent) => void;
children?: React.ReactChildren | JSX.Element;
label?: string;
}
export function StatelessNotificationBadge({ symbol, count, color, ...props }: Props): JSX.Element {
const hideBold = useSettingValue("feature_hidebold");
// Don't show a badge if we don't need to
if (color === NotificationColor.None || (hideBold && color == NotificationColor.Bold)) {
return <></>;
}
const hasUnreadCount = color >= NotificationColor.Grey && (!!count || !!symbol);
const isEmptyBadge = symbol === null && count === 0;
if (symbol === null && count > 0) {
symbol = formatCount(count);
}
const classes = classNames({
mx_NotificationBadge: true,
mx_NotificationBadge_visible: isEmptyBadge ? true : hasUnreadCount,
mx_NotificationBadge_highlighted: color >= NotificationColor.Red,
mx_NotificationBadge_dot: isEmptyBadge,
mx_NotificationBadge_2char: symbol && symbol.length > 0 && symbol.length < 3,
mx_NotificationBadge_3char: symbol && symbol.length > 2,
});
if (props.onClick) {
return (
<AccessibleButton
aria-label={props.label}
{...props}
className={classes}
onClick={props.onClick}
onMouseOver={props.onMouseOver}
onMouseLeave={props.onMouseLeave}
>
<span className="mx_NotificationBadge_count">{symbol}</span>
{props.children}
</AccessibleButton>
);
}
return (
<div className={classes}>
<span className="mx_NotificationBadge_count">{symbol}</span>
</div>
);
}