react-bootstrap-typeahead/cjs/components/Hint/Hint.js

React typeahead with Bootstrap styling

"use strict";

var _typeof = require("@babel/runtime/helpers/typeof");

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.useHint = exports["default"] = void 0;

var _react = _interopRequireWildcard(require("react"));

var _Context = require("../../core/Context");

function _getRequireWildcardCache(nodeInterop) { if (typeof WeakMap !== "function") return null; var cacheBabelInterop = new WeakMap(); var cacheNodeInterop = new WeakMap(); return (_getRequireWildcardCache = function _getRequireWildcardCache(nodeInterop) { return nodeInterop ? cacheNodeInterop : cacheBabelInterop; })(nodeInterop); }

function _interopRequireWildcard(obj, nodeInterop) { if (!nodeInterop && obj && obj.__esModule) { return obj; } if (obj === null || _typeof(obj) !== "object" && typeof obj !== "function") { return { "default": obj }; } var cache = _getRequireWildcardCache(nodeInterop); if (cache && cache.has(obj)) { return cache.get(obj); } var newObj = {}; var hasPropertyDescriptor = Object.defineProperty && Object.getOwnPropertyDescriptor; for (var key in obj) { if (key !== "default" && Object.prototype.hasOwnProperty.call(obj, key)) { var desc = hasPropertyDescriptor ? Object.getOwnPropertyDescriptor(obj, key) : null; if (desc && (desc.get || desc.set)) { Object.defineProperty(newObj, key, desc); } else { newObj[key] = obj[key]; } } } newObj["default"] = obj; if (cache) { cache.set(obj, newObj); } return newObj; }

// IE doesn't seem to get the composite computed value (eg: 'padding',
// 'borderStyle', etc.), so generate these from the individual values.
function interpolateStyle(styles, attr) {
  var subattr = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : '';

  // Title-case the sub-attribute.
  if (subattr) {
    /* eslint-disable-next-line no-param-reassign */
    subattr = subattr.replace(subattr[0], subattr[0].toUpperCase());
  }

  return ['Top', 'Right', 'Bottom', 'Left'].map(function (dir) {
    return styles["".concat(attr).concat(dir).concat(subattr)];
  }).join(' ');
}

function copyStyles(inputNode, hintNode) {
  var inputStyle = window.getComputedStyle(inputNode);
  /* eslint-disable no-param-reassign */

  hintNode.style.borderStyle = interpolateStyle(inputStyle, 'border', 'style');
  hintNode.style.borderWidth = interpolateStyle(inputStyle, 'border', 'width');
  hintNode.style.fontSize = inputStyle.fontSize;
  hintNode.style.fontWeight = inputStyle.fontWeight;
  hintNode.style.height = inputStyle.height;
  hintNode.style.lineHeight = inputStyle.lineHeight;
  hintNode.style.margin = interpolateStyle(inputStyle, 'margin');
  hintNode.style.padding = interpolateStyle(inputStyle, 'padding');
  /* eslint-enable no-param-reassign */
}

var useHint = function useHint() {
  var _useTypeaheadContext = (0, _Context.useTypeaheadContext)(),
      hintText = _useTypeaheadContext.hintText,
      inputNode = _useTypeaheadContext.inputNode;

  var hintRef = (0, _react.useRef)(null);
  (0, _react.useEffect)(function () {
    if (inputNode && hintRef.current) {
      copyStyles(inputNode, hintRef.current);
    }
  });
  return {
    hintRef: hintRef,
    hintText: hintText
  };
};

exports.useHint = useHint;

var Hint = function Hint(_ref) {
  var children = _ref.children,
      className = _ref.className;

  var _useHint = useHint(),
      hintRef = _useHint.hintRef,
      hintText = _useHint.hintText;

  return /*#__PURE__*/_react["default"].createElement("div", {
    className: className,
    style: {
      display: 'flex',
      flex: 1,
      height: '100%',
      position: 'relative'
    }
  }, children, /*#__PURE__*/_react["default"].createElement("input", {
    "aria-hidden": true,
    className: "rbt-input-hint",
    ref: hintRef,
    readOnly: true,
    style: {
      backgroundColor: 'transparent',
      borderColor: 'transparent',
      boxShadow: 'none',
      color: 'rgba(0, 0, 0, 0.54)',
      left: 0,
      pointerEvents: 'none',
      position: 'absolute',
      top: 0,
      width: '100%'
    },
    tabIndex: -1,
    value: hintText
  }));
};

var _default = Hint;
exports["default"] = _default;