@elastic/eui/optimize/es/components/highlight/highlight.js

Elastic UI Component Library

import _extends from "@babel/runtime/helpers/extends";
import _objectWithoutProperties from "@babel/runtime/helpers/objectWithoutProperties";
var _excluded = ["children", "className", "search", "strict", "highlightAll", "hasScreenReaderHelpText"];
/*
 * Copyright Elasticsearch B.V. and/or licensed to Elasticsearch B.V. under one
 * or more contributor license agreements. Licensed under the Elastic License
 * 2.0 and the Server Side Public License, v 1; you may not use this file except
 * in compliance with, at your election, the Elastic License 2.0 or the Server
 * Side Public License, v 1.
 */

import React, { Fragment } from 'react';
import { EuiMark } from '../mark';
import { jsx as ___EmotionJSX } from "@emotion/react";
var highlight = function highlight(searchSubject, searchValue, isStrict, highlightAll, hasScreenReaderHelpText) {
  if (!searchValue) {
    return searchSubject;
  }
  if (!searchSubject) {
    return null;
  }
  if (highlightAll) {
    var chunks = getHightlightWords(searchSubject, searchValue, isStrict);
    return ___EmotionJSX(Fragment, null, chunks.map(function (chunk) {
      var end = chunk.end,
        highlight = chunk.highlight,
        start = chunk.start;
      var value = searchSubject.substr(start, end - start);
      if (highlight) {
        return ___EmotionJSX(EuiMark, {
          key: start,
          hasScreenReaderHelpText: hasScreenReaderHelpText
        }, value);
      }
      return value;
    }));
  }
  var normalizedSearchSubject = isStrict ? searchSubject : searchSubject.toLowerCase();
  var normalizedSearchValue = isStrict ? searchValue : searchValue.toLowerCase();
  var indexOfMatch = normalizedSearchSubject.indexOf(normalizedSearchValue);
  if (indexOfMatch === -1) {
    return searchSubject;
  }
  var preMatch = searchSubject.substr(0, indexOfMatch);
  var match = searchSubject.substr(indexOfMatch, searchValue.length);
  var postMatch = searchSubject.substr(indexOfMatch + searchValue.length);
  return ___EmotionJSX(Fragment, null, preMatch, ___EmotionJSX(EuiMark, {
    hasScreenReaderHelpText: hasScreenReaderHelpText
  }, match), postMatch);
};
var getHightlightWords = function getHightlightWords(searchSubject, searchValue, isStrict) {
  var regex = new RegExp(searchValue, isStrict ? 'g' : 'gi');
  var matches = [];
  var match;
  while ((match = regex.exec(searchSubject)) !== null) {
    matches.push({
      start: match.index,
      end: (match.index || 0) + match[0].length
    });
  }
  return fillInChunks(matches, searchSubject.length);
};
var fillInChunks = function fillInChunks(chunksToHighlight, totalLength) {
  var allChunks = [];
  var append = function append(start, end, highlight) {
    if (end - start > 0) {
      allChunks.push({
        start: start,
        end: end,
        highlight: highlight
      });
    }
  };
  if (chunksToHighlight.length === 0) {
    append(0, totalLength, false);
  } else {
    var lastIndex = 0;
    chunksToHighlight.forEach(function (chunk) {
      append(lastIndex, chunk.start, false);
      append(chunk.start, chunk.end, true);
      lastIndex = chunk.end;
    });
    append(lastIndex, totalLength, false);
  }
  return allChunks;
};
export var EuiHighlight = function EuiHighlight(_ref) {
  var children = _ref.children,
    className = _ref.className,
    search = _ref.search,
    _ref$strict = _ref.strict,
    strict = _ref$strict === void 0 ? false : _ref$strict,
    _ref$highlightAll = _ref.highlightAll,
    highlightAll = _ref$highlightAll === void 0 ? false : _ref$highlightAll,
    _ref$hasScreenReaderH = _ref.hasScreenReaderHelpText,
    hasScreenReaderHelpText = _ref$hasScreenReaderH === void 0 ? true : _ref$hasScreenReaderH,
    rest = _objectWithoutProperties(_ref, _excluded);
  return ___EmotionJSX("span", _extends({
    className: className
  }, rest), highlight(children, search, strict, highlightAll, hasScreenReaderHelpText));
};