@fluent-windows/hooks/useReveal/useReveal.js

Fluent-Windows React hooks.

"use strict";

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

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

var _useGlobal = _interopRequireDefault(require("../useGlobal"));

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { "default": obj }; }

function _getRequireWildcardCache() { if (typeof WeakMap !== "function") return null; var cache = new WeakMap(); _getRequireWildcardCache = function _getRequireWildcardCache() { return cache; }; return cache; }

function _interopRequireWildcard(obj) { if (obj && obj.__esModule) { return obj; } var cache = _getRequireWildcardCache(); if (cache && cache.has(obj)) { return cache.get(obj); } var newObj = {}; if (obj != null) { var hasPropertyDescriptor = Object.defineProperty && Object.getOwnPropertyDescriptor; for (var key in obj) { if (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; }

/**
 * Create [Reveal Highlight](https://docs.microsoft.com/en-us/windows/uwp/design/style/reveal) Effects.
 *
 * Demo
 * import { useReveal } from '@fluent-windows/hooks'
 *
 * const [RevealWrapper] = useReveal(66)
 *
 * <RevealWrapper><div>1</div></RevealWrapper>
 * <RevealWrapper><div>2</div></RevealWrapper>
 * <RevealWrapper><div>3</div></RevealWrapper>
 */
var global = (0, _useGlobal["default"])();

var createRevealWrapper = function createRevealWrapper(gradientSize, lightColor) {
  var RevealWrapper = function RevealWrapper(_ref) {
    var children = _ref.children;
    var ref = React.useRef();
    var listener = React.useCallback(function (e) {
      global.requestAnimationFrame(function () {
        var rect = ref.current && ref.current.getBoundingClientRect();

        if (ref.current && rect) {
          var x = e.pageX - rect.left - global.scrollX;
          var y = e.pageY - rect.top - global.scrollY;
          ref.current.style.setProperty('--x', x + 'px');
          ref.current.style.setProperty('--y', y + 'px');
        }
      });
    }, [ref]);
    React.useEffect(function () {
      global.addEventListener('mousemove', listener);
      return function () {
        global.removeEventListener('mousemove', listener);
      };
    }, [listener]);
    var gradient = React.useMemo(function () {
      return "radial-gradient(circle ".concat(gradientSize, "px at var(--x) var(--y), ").concat(lightColor, ", rgba(255,255,255,0))");
    }, []);
    return React.createElement("div", {
      ref: ref,
      style: {
        background: gradient,
        margin: 1,
        padding: 1
      }
    }, React.cloneElement(children));
  };

  return RevealWrapper;
};

function useReveal() {
  var gradientSize = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : 80;
  var lightColor = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : 'rgba(160, 160, 160, 1)';
  var RevealWrapper = createRevealWrapper(gradientSize, lightColor);
  return [RevealWrapper];
}

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