antd-mobile
Version:
<div align="center">
84 lines • 3.1 kB
JavaScript
import React, { isValidElement } from 'react';
import classNames from 'classnames';
import { withNativeProps } from '../../utils/native-props';
import { mergeProps } from '../../utils/with-default-props';
import Badge from '../badge';
import SafeArea from '../safe-area';
import { usePropsValue } from '../../utils/use-props-value';
import { traverseReactNode } from '../../utils/traverse-react-node';
/* istanbul ignore next */
export const TabBarItem = () => {
return null;
};
const classPrefix = `adm-tab-bar`;
const defaultProps = {
safeArea: false
};
export const TabBar = p => {
var _a;
const props = mergeProps(defaultProps, p);
let firstActiveKey = null;
const items = [];
traverseReactNode(props.children, (child, index) => {
if (!isValidElement(child)) return;
const key = child.key;
if (typeof key !== 'string') return;
if (index === 0) {
firstActiveKey = key;
}
items.push(child);
});
const [activeKey, setActiveKey] = usePropsValue({
value: props.activeKey,
defaultValue: (_a = props.defaultActiveKey) !== null && _a !== void 0 ? _a : firstActiveKey,
onChange: v => {
var _a;
if (v === null) return;
(_a = props.onChange) === null || _a === void 0 ? void 0 : _a.call(props, v);
}
});
return withNativeProps(props, React.createElement("div", {
className: classPrefix
}, React.createElement("div", {
className: `${classPrefix}-wrap`
}, items.map(item => {
const active = item.key === activeKey;
function renderContent() {
const iconElement = item.props.icon && React.createElement("div", {
className: `${classPrefix}-item-icon`
}, typeof item.props.icon === 'function' ? item.props.icon(active) : item.props.icon);
const titleElement = item.props.title && React.createElement("div", {
className: classNames(`${classPrefix}-item-title`, Boolean(iconElement) && `${classPrefix}-item-title-with-icon`)
}, typeof item.props.title === 'function' ? item.props.title(active) : item.props.title);
if (iconElement) {
return React.createElement(React.Fragment, null, React.createElement(Badge, {
content: item.props.badge,
className: `${classPrefix}-icon-badge`
}, iconElement), titleElement);
} else if (titleElement) {
return React.createElement(Badge, {
content: item.props.badge,
className: `${classPrefix}-title-badge`
}, titleElement);
}
return null;
}
return withNativeProps(item.props, React.createElement("div", {
key: item.key,
onClick: () => {
var _a, _b;
const {
key
} = item;
if (key === undefined || key === null) return;
setActiveKey(key.toString());
(_b = (_a = item.props).onClick) === null || _b === void 0 ? void 0 : _b.call(_a);
},
className: classNames(`${classPrefix}-item`, {
[`${classPrefix}-item-active`]: active
})
}, renderContent()));
})), props.safeArea && React.createElement(SafeArea, {
position: 'bottom'
})));
};