vantui-edit/es/tabbar/index.js

一套适用于Taro3及React的vantui组件库

import _objectWithoutProperties from "@babel/runtime/helpers/objectWithoutProperties";
import _slicedToArray from "@babel/runtime/helpers/slicedToArray";
import _defineProperty from "@babel/runtime/helpers/defineProperty";
var _excluded = ["active", "activeColor", "inactiveColor", "border", "fixed", "safeAreaInsetBottom", "zIndex", "placeholder", "onChange", "style", "className", "children"];

function ownKeys(object, enumerableOnly) { var keys = Object.keys(object); if (Object.getOwnPropertySymbols) { var symbols = Object.getOwnPropertySymbols(object); enumerableOnly && (symbols = symbols.filter(function (sym) { return Object.getOwnPropertyDescriptor(object, sym).enumerable; })), keys.push.apply(keys, symbols); } return keys; }

function _objectSpread(target) { for (var i = 1; i < arguments.length; i++) { var source = null != arguments[i] ? arguments[i] : {}; i % 2 ? ownKeys(Object(source), !0).forEach(function (key) { _defineProperty(target, key, source[key]); }) : Object.getOwnPropertyDescriptors ? Object.defineProperties(target, Object.getOwnPropertyDescriptors(source)) : ownKeys(Object(source)).forEach(function (key) { Object.defineProperty(target, key, Object.getOwnPropertyDescriptor(source, key)); }); } return target; }

import { nextTick } from '@tarojs/taro';
import { useState, isValidElement, cloneElement, useEffect, useCallback, useMemo } from 'react';
import toArray from 'rc-util/lib/Children/toArray';
import { View } from '@tarojs/components';
import * as utils from '../wxs/utils';
import { getRect } from '../common/utils';
import { jsx as _jsx } from "react/jsx-runtime";
import { Fragment as _Fragment } from "react/jsx-runtime";
import { jsxs as _jsxs } from "react/jsx-runtime";

function parseTabList(children) {
  return toArray(children).map(function (node) {
    if ( /*#__PURE__*/isValidElement(node)) {
      var key = node.key !== undefined ? String(node.key) : undefined;
      return _objectSpread(_objectSpread({
        key: key
      }, node.props), {}, {
        node: node
      });
    }

    return null;
  }).filter(function (tab) {
    return tab;
  });
}

export function Tabbar(props) {
  var _useState = useState({
    height: 50,
    current: 0
  }),
      _useState2 = _slicedToArray(_useState, 2),
      state = _useState2[0],
      setState = _useState2[1];

  var height = state.height,
      current = state.current;

  var active = props.active,
      activeColor = props.activeColor,
      inactiveColor = props.inactiveColor,
      _props$border = props.border,
      border = _props$border === void 0 ? true : _props$border,
      _props$fixed = props.fixed,
      fixed = _props$fixed === void 0 ? true : _props$fixed,
      _props$safeAreaInsetB = props.safeAreaInsetBottom,
      safeAreaInsetBottom = _props$safeAreaInsetB === void 0 ? true : _props$safeAreaInsetB,
      zIndex = props.zIndex,
      placeholder = props.placeholder,
      onChange = props.onChange,
      style = props.style,
      className = props.className,
      children = props.children,
      others = _objectWithoutProperties(props, _excluded);

  var _change = useCallback(function (data) {
    setState(function (pre) {
      return _objectSpread(_objectSpread({}, pre), {}, {
        current: data
      });
    });
    onChange === null || onChange === void 0 ? void 0 : onChange({
      detail: data
    });
  }, [onChange]);

  var newChildren = useMemo(function () {
    var tabs = parseTabList(children);
    return tabs.map(function (tab, index) {
      return /*#__PURE__*/cloneElement(tab.node, {
        key: index,
        index: index,
        active: current,
        activeColor: activeColor,
        inactiveColor: inactiveColor,
        onChange: _change
      });
    });
  }, [children, current, activeColor, inactiveColor, _change]);
  useEffect(function () {
    setState(function (pre) {
      return _objectSpread(_objectSpread({}, pre), {}, {
        current: active
      });
    });
  }, [active]);
  useEffect(function () {
    if (!fixed || !placeholder) {
      return;
    }

    nextTick(function () {
      getRect(null, '.van-tabbar').then(function (res) {
        setState(function (pre) {
          return _objectSpread(_objectSpread({}, pre), {}, {
            height: res.height
          });
        });
      });
    });
  }, [fixed, placeholder]); // useEffect(
  //   function () {
  //     if (!Array.isArray(children) || !children.length) {
  //       return
  //     }
  //     children.forEach((child) => child.updateFromParent())
  //   },
  //   // eslint-disable-next-line react-hooks/exhaustive-deps
  //   [active, activeColor, inactiveColor],
  // )

  return /*#__PURE__*/_jsxs(_Fragment, {
    children: [/*#__PURE__*/_jsx(View, _objectSpread(_objectSpread({
      className: (border ? 'van-hairline--top-bottom' : '') + ' ' + utils.bem('tabbar', {
        fixed: fixed,
        safe: safeAreaInsetBottom
      }) + ' custom-class' + " ".concat(className || ''),
      style: utils.style([zIndex ? 'zIndex: ' + zIndex : '', style])
    }, others), {}, {
      children: newChildren
    })), fixed && placeholder && /*#__PURE__*/_jsx(View, {
      style: 'height: ' + height + 'px;'
    })]
  });
}
export default Tabbar;