ant-design-vue/components/timeline/TimelineItem.jsx

import classNames from 'classnames'
import PropTypes from '../_util/vue-types'
import { getOptionProps, initDefaultProps, getComponentFromProp } from '../_util/props-util'

export const TimeLineItemProps = {
  prefixCls: PropTypes.string,
  color: PropTypes.string,
  dot: PropTypes.any,
  pending: PropTypes.bool,
  last: PropTypes.bool,
}

export default {
  name: 'TimelineItem',
  props: initDefaultProps(TimeLineItemProps, {
    prefixCls: 'ant-timeline',
    color: 'blue',
    last: false,
    pending: false,
  }),
  render () {
    const { prefixCls, color = '', last, pending } = getOptionProps(this)
    const dot = getComponentFromProp(this, 'dot')
    const itemClassName = classNames({
      [`${prefixCls}-item`]: true,
      [`${prefixCls}-item-last`]: last,
      [`${prefixCls}-item-pending`]: pending,
    })

    const dotClassName = classNames({
      [`${prefixCls}-item-head`]: true,
      [`${prefixCls}-item-head-custom`]: dot,
      [`${prefixCls}-item-head-${color}`]: true,
    })
    const liProps = {
      class: itemClassName,
      on: this.$listeners,
    }
    return (
      <li {...liProps}>
        <div class={`${prefixCls}-item-tail`} />
        <div
          class={dotClassName}
          style={{ borderColor: /blue|red|green/.test(color) ? null : color }}
        >
          {dot}
        </div>
        <div class={`${prefixCls}-item-content`}>
          {this.$slots.default}
        </div>
      </li>
    )
  },
}