@ant-design/cssinjs/es/util/cacheMapUtil.js

Component level cssinjs resolution for antd

import _slicedToArray from "@babel/runtime/helpers/esm/slicedToArray";
import canUseDom from "rc-util/es/Dom/canUseDom";
import { ATTR_MARK } from "../StyleContext";
export var ATTR_CACHE_MAP = 'data-ant-cssinjs-cache-path';

/**
 * This marks style from the css file.
 * Which means not exist in `<style />` tag.
 */
export var CSS_FILE_STYLE = '_FILE_STYLE__';
export function serialize(cachePathMap) {
  return Object.keys(cachePathMap).map(function (path) {
    var hash = cachePathMap[path];
    return "".concat(path, ":").concat(hash);
  }).join(';');
}
var cachePathMap;
var fromCSSFile = true;

/**
 * @private Test usage only. Can save remove if no need.
 */
export function reset(mockCache) {
  var fromFile = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : true;
  cachePathMap = mockCache;
  fromCSSFile = fromFile;
}
export function prepare() {
  if (!cachePathMap) {
    cachePathMap = {};
    if (canUseDom()) {
      var div = document.createElement('div');
      div.className = ATTR_CACHE_MAP;
      div.style.position = 'fixed';
      div.style.visibility = 'hidden';
      div.style.top = '-9999px';
      document.body.appendChild(div);
      var content = getComputedStyle(div).content || '';
      content = content.replace(/^"/, '').replace(/"$/, '');

      // Fill data
      content.split(';').forEach(function (item) {
        var _item$split = item.split(':'),
          _item$split2 = _slicedToArray(_item$split, 2),
          path = _item$split2[0],
          hash = _item$split2[1];
        cachePathMap[path] = hash;
      });

      // Remove inline record style
      var inlineMapStyle = document.querySelector("style[".concat(ATTR_CACHE_MAP, "]"));
      if (inlineMapStyle) {
        var _inlineMapStyle$paren;
        fromCSSFile = false;
        (_inlineMapStyle$paren = inlineMapStyle.parentNode) === null || _inlineMapStyle$paren === void 0 || _inlineMapStyle$paren.removeChild(inlineMapStyle);
      }
      document.body.removeChild(div);
    }
  }
}
export function existPath(path) {
  prepare();
  return !!cachePathMap[path];
}
export function getStyleAndHash(path) {
  var hash = cachePathMap[path];
  var styleStr = null;
  if (hash && canUseDom()) {
    if (fromCSSFile) {
      styleStr = CSS_FILE_STYLE;
    } else {
      var _style = document.querySelector("style[".concat(ATTR_MARK, "=\"").concat(cachePathMap[path], "\"]"));
      if (_style) {
        styleStr = _style.innerHTML;
      } else {
        // Clean up since not exist anymore
        delete cachePathMap[path];
      }
    }
  }
  return [styleStr, hash];
}