/* eslint-disable react/button-has-type */
import * as React from 'react';
import classNames from 'classnames';
import omit from 'omit.js';
import Group from './button-group';
import { ConfigContext } from '../config-provider';
import Wave from '../_util/wave';
import { Omit, tuple } from '../_util/type';
import devWarning from '../_util/devWarning';
import SizeContext, { SizeType } from '../config-provider/SizeContext';
import LoadingIcon from './LoadingIcon';
import { cloneElement } from '../_util/reactNode';
const rxTwoCNChar = /^[\u4e00-\u9fa5]{2}$/;
const isTwoCNChar = rxTwoCNChar.test.bind(rxTwoCNChar);
function isString(str: any) {
return typeof str === 'string';
}
function isUnborderedButtonType(type: ButtonType | undefined) {
return type === 'text' || type === 'link';
}
// Insert one space between two chinese characters automatically.
function insertSpace(child: React.ReactChild, needInserted: boolean) {
// Check the child if is undefined or null.
if (child == null) {
return;
}
const SPACE = needInserted ? ' ' : '';
// strictNullChecks oops.
if (
typeof child !== 'string' &&
typeof child !== 'number' &&
isString(child.type) &&
isTwoCNChar(child.props.children)
) {
return cloneElement(child, {
children: child.props.children.split('').join(SPACE),
});
}
if (typeof child === 'string') {
if (isTwoCNChar(child)) {
child = child.split('').join(SPACE);
}
return {child};
}
return child;
}
function spaceChildren(children: React.ReactNode, needInserted: boolean) {
let isPrevChildPure: boolean = false;
const childList: React.ReactNode[] = [];
React.Children.forEach(children, child => {
const type = typeof child;
const isCurrentChildPure = type === 'string' || type === 'number';
if (isPrevChildPure && isCurrentChildPure) {
const lastIndex = childList.length - 1;
const lastChild = childList[lastIndex];
childList[lastIndex] = `${lastChild}${child}`;
} else {
childList.push(child);
}
isPrevChildPure = isCurrentChildPure;
});
// Pass to React.Children.map to auto fill key
return React.Children.map(childList, child =>
insertSpace(child as React.ReactChild, needInserted),
);
}
const ButtonTypes = tuple('default', 'primary', 'ghost', 'dashed', 'link', 'text');
export type ButtonType = typeof ButtonTypes[number];
const ButtonShapes = tuple('circle', 'circle-outline', 'round');
export type ButtonShape = typeof ButtonShapes[number];
const ButtonHTMLTypes = tuple('submit', 'button', 'reset');
export type ButtonHTMLType = typeof ButtonHTMLTypes[number];
export type LegacyButtonType = ButtonType | 'danger';
export function convertLegacyProps(type?: LegacyButtonType): ButtonProps {
if (type === 'danger') {
return { danger: true };
}
return { type };
}
export interface BaseButtonProps {
type?: ButtonType;
icon?: React.ReactNode;
shape?: ButtonShape;
size?: SizeType;
loading?: boolean | { delay?: number };
prefixCls?: string;
className?: string;
ghost?: boolean;
danger?: boolean;
block?: boolean;
children?: React.ReactNode;
}
// Typescript will make optional not optional if use Pick with union.
// Should change to `AnchorButtonProps | NativeButtonProps` and `any` to `HTMLAnchorElement | HTMLButtonElement` if it fixed.
// ref: https://github.com/ant-design/ant-design/issues/15930
export type AnchorButtonProps = {
href: string;
target?: string;
onClick?: React.MouseEventHandler;
} & BaseButtonProps &
Omit, 'type' | 'onClick'>;
export type NativeButtonProps = {
htmlType?: ButtonHTMLType;
onClick?: React.MouseEventHandler;
} & BaseButtonProps &
Omit, 'type' | 'onClick'>;
export type ButtonProps = Partial;
interface CompoundedComponent
extends React.ForwardRefExoticComponent> {
Group: typeof Group;
__ANT_BUTTON: boolean;
}
type Loading = number | boolean;
const InternalButton: React.ForwardRefRenderFunction = (props, ref) => {
const {
loading,
prefixCls: customizePrefixCls,
type,
danger,
shape,
size: customizeSize,
className,
children,
icon,
ghost,
block,
...rest
} = props;
const size = React.useContext(SizeContext);
const [innerLoading, setLoading] = React.useState(!!loading);
const [hasTwoCNChar, setHasTwoCNChar] = React.useState(false);
const { getPrefixCls, autoInsertSpaceInButton, direction } = React.useContext(ConfigContext);
const buttonRef = (ref as any) || React.createRef();
const delayTimeoutRef = React.useRef();
const isNeedInserted = () => {
return React.Children.count(children) === 1 && !icon && !isUnborderedButtonType(type);
};
const fixTwoCNChar = () => {
// Fix for HOC usage like
if (!buttonRef || !buttonRef.current || autoInsertSpaceInButton === false) {
return;
}
const buttonText = buttonRef.current.textContent;
if (isNeedInserted() && isTwoCNChar(buttonText)) {
if (!hasTwoCNChar) {
setHasTwoCNChar(true);
}
} else if (hasTwoCNChar) {
setHasTwoCNChar(false);
}
};
// =============== Update Loading ===============
let loadingOrDelay: Loading;
if (typeof loading === 'object' && loading.delay) {
loadingOrDelay = loading.delay || true;
} else {
loadingOrDelay = !!loading;
}
React.useEffect(() => {
clearTimeout(delayTimeoutRef.current);
if (typeof loadingOrDelay === 'number') {
delayTimeoutRef.current = window.setTimeout(() => {
setLoading(loadingOrDelay);
}, loadingOrDelay);
} else {
setLoading(loadingOrDelay);
}
}, [loadingOrDelay]);
React.useEffect(() => {
fixTwoCNChar();
}, [buttonRef]);
const handleClick = (e: React.MouseEvent) => {
const { onClick } = props;
if (innerLoading) {
return;
}
if (onClick) {
(onClick as React.MouseEventHandler)(e);
}
};
devWarning(
!(typeof icon === 'string' && icon.length > 2),
'Button',
`\`icon\` is using ReactNode instead of string naming in v4. Please check \`${icon}\` at https://ant.design/components/icon`,
);
devWarning(
!(ghost && isUnborderedButtonType(type)),
'Button',
"`link` or `text` button can't be a `ghost` button.",
);
const prefixCls = getPrefixCls('btn', customizePrefixCls);
const autoInsertSpace = autoInsertSpaceInButton !== false;
// large => lg
// small => sm
let sizeCls = '';
switch (customizeSize || size) {
case 'large':
sizeCls = 'lg';
break;
case 'small':
sizeCls = 'sm';
break;
default:
break;
}
const iconType = innerLoading ? 'loading' : icon;
const classes = classNames(prefixCls, className, {
[`${prefixCls}-${type}`]: type,
[`${prefixCls}-${shape}`]: shape,
[`${prefixCls}-${sizeCls}`]: sizeCls,
[`${prefixCls}-icon-only`]: !children && children !== 0 && iconType,
[`${prefixCls}-background-ghost`]: ghost && !isUnborderedButtonType(type),
[`${prefixCls}-loading`]: innerLoading,
[`${prefixCls}-two-chinese-chars`]: hasTwoCNChar && autoInsertSpace,
[`${prefixCls}-block`]: block,
[`${prefixCls}-dangerous`]: !!danger,
[`${prefixCls}-rtl`]: direction === 'rtl',
});
const iconNode =
icon && !innerLoading ? (
icon
) : (
);
const kids =
children || children === 0
? spaceChildren(children, isNeedInserted() && autoInsertSpace)
: null;
const linkButtonRestProps = omit(rest as AnchorButtonProps, ['htmlType', 'loading']);
if (linkButtonRestProps.href !== undefined) {
return (
{iconNode}
{kids}
);
}
// React does not recognize the `htmlType` prop on a DOM element. Here we pick it out of `rest`.
const { htmlType, ...otherProps } = rest as NativeButtonProps;
const buttonNode = (
);
if (isUnborderedButtonType(type)) {
return buttonNode;
}
return {buttonNode};
};
const Button = React.forwardRef(InternalButton) as CompoundedComponent;
Button.displayName = 'Button';
Button.defaultProps = {
loading: false,
ghost: false,
block: false,
htmlType: 'button' as ButtonProps['htmlType'],
};
Button.Group = Group;
Button.__ANT_BUTTON = true;
export default Button;