71 lines
1.7 KiB
TypeScript
71 lines
1.7 KiB
TypeScript
// Copyright 2021 Signal Messenger, LLC
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// SPDX-License-Identifier: AGPL-3.0-only
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import React, { MouseEventHandler, ReactNode } from 'react';
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import classNames from 'classnames';
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import { assert } from '../util/assert';
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export enum ButtonVariant {
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Primary,
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Secondary,
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Destructive,
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}
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type PropsType = {
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children: ReactNode;
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className?: string;
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disabled?: boolean;
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variant?: ButtonVariant;
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} & (
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| {
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onClick: MouseEventHandler<HTMLButtonElement>;
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}
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| {
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type: 'submit';
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}
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);
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const VARIANT_CLASS_NAMES = new Map<ButtonVariant, string>([
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[ButtonVariant.Primary, 'module-Button--primary'],
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[ButtonVariant.Secondary, 'module-Button--secondary'],
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[ButtonVariant.Destructive, 'module-Button--destructive'],
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]);
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export const Button = React.forwardRef<HTMLButtonElement, PropsType>(
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(props, ref) => {
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const {
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children,
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className,
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disabled = false,
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variant = ButtonVariant.Primary,
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} = props;
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let onClick: undefined | MouseEventHandler<HTMLButtonElement>;
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let type: 'button' | 'submit';
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if ('onClick' in props) {
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({ onClick } = props);
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type = 'button';
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} else {
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onClick = undefined;
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({ type } = props);
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}
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const variantClassName = VARIANT_CLASS_NAMES.get(variant);
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assert(variantClassName, '<Button> variant not found');
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return (
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<button
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className={classNames('module-Button', variantClassName, className)}
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disabled={disabled}
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onClick={onClick}
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ref={ref}
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// The `type` should either be "button" or "submit", which is effectively static.
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// eslint-disable-next-line react/button-has-type
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type={type}
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>
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{children}
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</button>
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);
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}
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);
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