react封装通用tab组件

import React, { Component } from 'react'
import PropTypes from 'prop-types'
import _ from 'lodash'
import classNames from 'classnames'

import {
  CloseButton,
} from '@dby-h5-clients/pc-1vn-components'

import './index.less'

class NormalTab extends Component {
  static propTypes = {
    style: PropTypes.object,
    tagIcon: PropTypes.element,
    name: PropTypes.string,
    onClick: PropTypes.func,
    closable: PropTypes.bool,
    onClose: PropTypes.func,
    isActive: PropTypes.bool,
  }

  static defaultProps = {
    style: {},
    tagIcon: null,
    name: 'normal-tab',
    onClick: _.noop,
    closable: true,
    onClose: _.noop,
    isActive: false,
  }

  state = {
    tabInfoWrapWidth: 100,
  }


  componentDidMount() {
    const tabInfoWrapElem = this.normalTabWrapElemRef.current
    this.tabInfoWrapElem = tabInfoWrapElem

    this.resizeObserver = new ResizeObserver(_.throttle(() => {
      if (tabInfoWrapElem !== undefined) {
        this.setState({
          tabInfoWrapWidth: tabInfoWrapElem.clientWidth,
        })
      }
    }, 200))

    this.resizeObserver.observe(tabInfoWrapElem)
  }

  componentWillUnmount() {
    this.resizeObserver.unobserve(this.tabInfoWrapElem)
  }

  resizeObserver

  normalTabWrapElemRef = React.createRef()

  tabInfoWrapElem

  render() {
    const closeBtnStyle = {
      height: '20px',
      width: '20px',
      flex: 'none',
      margin: 8,
    }

    const tabInfoWrapStyle = {
      // 当显示区域足够大或当前标签被选中的时候显示完整关闭按钮
      flex: (this.state.tabInfoWrapWidth > 84 || this.props.isActive === true) ? 1 : 'none',
    }

    return (
      <span
        className={classNames({
          'normal-tab-component-wrap': true,
          selected: this.props.isActive === true,
        })}
        ref={this.normalTabWrapElemRef}
        style={this.props.style}
        title={this.props.name}
      >
        <span
          className="normal-tab-info-wrap"
          tabIndex={0}
          role="button"
          style={tabInfoWrapStyle}
          onClick={this.props.onClick}
        >
          {this.props.tagIcon}
          {this.props.name}
        </span>
        {
          this.props.closable === true && (
            <CloseButton
              style={closeBtnStyle}
              onClick={this.props.onClose}
            />
          )
        }
      </span>
    )
  }
}

export default NormalTab

.normal-tab-component-wrap {
  min-width: 36px;
  height: 100%;
  display: flex;
  flex-direction: row;
  justify-content: flex-start;
  align-items: center;
  border-radius: 4px;
  background-color: rgba(54, 65, 82, 0.1);;
  margin-right: 1px;
  overflow: hidden;

  &:last-child {
    margin-right: 0px;
  }

  &:hover {
    background-color: #fff;
  }

  &.selected {
    background-color: #fff;
    min-width: 64px;

    .normal-tab-info-wrap {
      flex: 1;
    }
  }

  .normal-tab-info-wrap {
    height: 100%;
    max-width: 180px;
    display: flex;
    flex-direction: row;
    justify-content: flex-start;
    align-items: center;
    flex: none;
    font-size: 12px;
    color: #616e80;
    overflow: hidden;
    white-space: nowrap;
    text-overflow: ellipsis;
    cursor: pointer;
    outline: none;
  }
}