@vnmfify/core/timeline/timeline-item.js

```shell npm i @vnmfify/core -S ```

import _isObject from "lodash/isObject";
var _excluded = ["className", "dot", "children"];

function _objectWithoutProperties(source, excluded) { if (source == null) return {}; var target = _objectWithoutPropertiesLoose(source, excluded); var key, i; if (Object.getOwnPropertySymbols) { var sourceSymbolKeys = Object.getOwnPropertySymbols(source); for (i = 0; i < sourceSymbolKeys.length; i++) { key = sourceSymbolKeys[i]; if (excluded.indexOf(key) >= 0) continue; if (!Object.prototype.propertyIsEnumerable.call(source, key)) continue; target[key] = source[key]; } } return target; }

function _objectWithoutPropertiesLoose(source, excluded) { if (source == null) return {}; var target = {}; var sourceKeys = Object.keys(source); var key, i; for (i = 0; i < sourceKeys.length; i++) { key = sourceKeys[i]; if (excluded.indexOf(key) >= 0) continue; target[key] = source[key]; } return target; }

function ownKeys(object, enumerableOnly) { var keys = Object.keys(object); if (Object.getOwnPropertySymbols) { var symbols = Object.getOwnPropertySymbols(object); if (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 = arguments[i] != null ? arguments[i] : {}; if (i % 2) { ownKeys(Object(source), true).forEach(function (key) { _defineProperty(target, key, source[key]); }); } else if (Object.getOwnPropertyDescriptors) { Object.defineProperties(target, Object.getOwnPropertyDescriptors(source)); } else { ownKeys(Object(source)).forEach(function (key) { Object.defineProperty(target, key, Object.getOwnPropertyDescriptor(source, key)); }); } } return target; }

function _defineProperty(obj, key, value) { if (key in obj) { Object.defineProperty(obj, key, { value: value, enumerable: true, configurable: true, writable: true }); } else { obj[key] = value; } return obj; }

import classNames from "classnames";
import * as React from "react";
import { Children, isValidElement, useContext } from "react";
import { prefixClassname } from "../styles";
import { isElementOf } from "../utils/validate";
import TimelineConnector from "./timeline-connector";
import TimelineContent from "./timeline-content";
import TimelineDot from "./timeline-dot";
import TimelineItemBase from "./timeline-item-base";
import TimelineSeparator from "./timeline-separator";
import TimelineContext from "./timeline.context";

function useTimelineItemChildren(children, options) {
  var {
    position,
    dot
  } = options;
  var separator = [false, undefined];
  var leftContent = [false, undefined];
  var rightContent = [false, undefined];
  Children.forEach(children, child => {
    if (isElementOf(child, TimelineSeparator)) {
      separator[0] = true;
      separator[1] = child;
    }

    if (leftContent[0] && isElementOf(child, TimelineContent)) {
      rightContent[0] = true;
      rightContent[1] = child;
    }

    if (!leftContent[0] && isElementOf(child, TimelineContent)) {
      leftContent[0] = true;
      leftContent[1] = child;
    }
  });

  if (!leftContent[0] && !rightContent[0]) {
    leftContent[0] = true;
    leftContent[1] = /*#__PURE__*/React.createElement(TimelineContent, {
      children: children
    });
  }

  if (!separator[0]) {
    separator[0] = true;
    separator[1] = /*#__PURE__*/React.createElement(TimelineSeparator, null, dot, /*#__PURE__*/React.createElement(TimelineConnector, null));
  }

  if (position === "left") {
    return /*#__PURE__*/React.createElement(React.Fragment, null, leftContent[1], separator[1]);
  }

  if (position === "right") {
    return /*#__PURE__*/React.createElement(React.Fragment, null, separator[1], leftContent[1]);
  }

  if (!rightContent[0]) {
    rightContent[0] = true;
    rightContent[1] = /*#__PURE__*/React.createElement(TimelineContent, null);
  }

  return /*#__PURE__*/React.createElement(React.Fragment, null, leftContent[1], separator[1], rightContent[1]);
}

function useTimelineDot(dot) {
  if ( /*#__PURE__*/isValidElement(dot)) {
    return dot;
  }

  if (_isObject(dot)) {
    var dotProps = dot;
    return /*#__PURE__*/React.createElement(TimelineDot, _objectSpread({}, dotProps));
  }
}

function TimelineItem(props) {
  var {
    className,
    dot: dotProp = /*#__PURE__*/React.createElement(TimelineDot, null),
    children: childrenProp
  } = props,
      restProps = _objectWithoutProperties(props, _excluded);

  var {
    position
  } = useContext(TimelineContext);
  var dot = useTimelineDot(dotProp);
  var children = useTimelineItemChildren(childrenProp, {
    position,
    dot
  });
  return /*#__PURE__*/React.createElement(TimelineItemBase, _objectSpread({
    className: classNames(className, {
      [prefixClassname("timeline-item--right")]: position === "right",
      [prefixClassname("timeline-item--left")]: position === "left",
      [prefixClassname("timeline-item--alternate")]: position === "alternate",
      [prefixClassname("timeline-item--alternate-reverse")]: position === "alternate-reverse"
    })
  }, restProps), children);
}

export default TimelineItem;
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