@ant-design/x-markdown/lib/XMarkdown/AnimationText.js

placeholder for @ant-design/x-markdown

"use strict";

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.default = void 0;
var _react = _interopRequireWildcard(require("react"));
function _getRequireWildcardCache(e) { if ("function" != typeof WeakMap) return null; var r = new WeakMap(), t = new WeakMap(); return (_getRequireWildcardCache = function (e) { return e ? t : r; })(e); }
function _interopRequireWildcard(e, r) { if (!r && e && e.__esModule) return e; if (null === e || "object" != typeof e && "function" != typeof e) return { default: e }; var t = _getRequireWildcardCache(r); if (t && t.has(e)) return t.get(e); var n = { __proto__: null }, a = Object.defineProperty && Object.getOwnPropertyDescriptor; for (var u in e) if ("default" !== u && Object.prototype.hasOwnProperty.call(e, u)) { var i = a ? Object.getOwnPropertyDescriptor(e, u) : null; i && (i.get || i.set) ? Object.defineProperty(n, u, i) : n[u] = e[u]; } return n.default = e, t && t.set(e, n), n; }
const AnimationText = /*#__PURE__*/_react.default.memo(props => {
  const {
    text,
    animationConfig
  } = props;
  const {
    fadeDuration = 200,
    easing = 'ease-in-out'
  } = animationConfig || {};
  const [chunks, setChunks] = (0, _react.useState)([]);
  const prevTextRef = (0, _react.useRef)('');
  (0, _react.useEffect)(() => {
    if (text === prevTextRef.current) return;
    if (!(prevTextRef.current && text.indexOf(prevTextRef.current) === 0)) {
      setChunks([text]);
      prevTextRef.current = text;
      return;
    }
    const newText = text.slice(prevTextRef.current.length);
    if (!newText) return;
    setChunks(prev => [...prev, newText]);
    prevTextRef.current = text;
  }, [text]);
  const animationStyle = (0, _react.useMemo)(() => ({
    animation: `x-markdown-fade-in ${fadeDuration}ms ${easing} forwards`
  }), [fadeDuration, easing]);
  return /*#__PURE__*/_react.default.createElement(_react.default.Fragment, null, chunks.map((text, index) => /*#__PURE__*/_react.default.createElement("span", {
    style: animationStyle,
    key: `animation-text-${index}`
  }, text)));
});
var _default = exports.default = AnimationText;