@netdata/charts/dist/components/useHover.js

Netdata frontend SDK and chart utilities

"use strict";

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.useHovered = exports["default"] = void 0;
var _react = require("react");
function _slicedToArray(r, e) { return _arrayWithHoles(r) || _iterableToArrayLimit(r, e) || _unsupportedIterableToArray(r, e) || _nonIterableRest(); }
function _nonIterableRest() { throw new TypeError("Invalid attempt to destructure non-iterable instance.\nIn order to be iterable, non-array objects must have a [Symbol.iterator]() method."); }
function _iterableToArrayLimit(r, l) { var t = null == r ? null : "undefined" != typeof Symbol && r[Symbol.iterator] || r["@@iterator"]; if (null != t) { var e, n, i, u, a = [], f = !0, o = !1; try { if (i = (t = t.call(r)).next, 0 === l) { if (Object(t) !== t) return; f = !1; } else for (; !(f = (e = i.call(t)).done) && (a.push(e.value), a.length !== l); f = !0); } catch (r) { o = !0, n = r; } finally { try { if (!f && null != t["return"] && (u = t["return"](), Object(u) !== u)) return; } finally { if (o) throw n; } } return a; } }
function _arrayWithHoles(r) { if (Array.isArray(r)) return r; }
function _toConsumableArray(r) { return _arrayWithoutHoles(r) || _iterableToArray(r) || _unsupportedIterableToArray(r) || _nonIterableSpread(); }
function _nonIterableSpread() { throw new TypeError("Invalid attempt to spread non-iterable instance.\nIn order to be iterable, non-array objects must have a [Symbol.iterator]() method."); }
function _unsupportedIterableToArray(r, a) { if (r) { if ("string" == typeof r) return _arrayLikeToArray(r, a); var t = {}.toString.call(r).slice(8, -1); return "Object" === t && r.constructor && (t = r.constructor.name), "Map" === t || "Set" === t ? Array.from(r) : "Arguments" === t || /^(?:Ui|I)nt(?:8|16|32)(?:Clamped)?Array$/.test(t) ? _arrayLikeToArray(r, a) : void 0; } }
function _iterableToArray(r) { if ("undefined" != typeof Symbol && null != r[Symbol.iterator] || null != r["@@iterator"]) return Array.from(r); }
function _arrayWithoutHoles(r) { if (Array.isArray(r)) return _arrayLikeToArray(r); }
function _arrayLikeToArray(r, a) { (null == a || a > r.length) && (a = r.length); for (var e = 0, n = Array(a); e < a; e++) n[e] = r[e]; return n; }
var defaultIsOut = function defaultIsOut() {
  return true;
};
var useHover = function useHover(_ref, deps) {
  var onHover = _ref.onHover,
    onBlur = _ref.onBlur,
    _ref$isOut = _ref.isOut,
    isOut = _ref$isOut === void 0 ? defaultIsOut : _ref$isOut;
  var ref = (0, _react.useRef)();
  (0, _react.useLayoutEffect)(function () {
    if (!ref.current) return;
    var mouseout = function mouseout(e) {
      var node = e.relatedTarget;
      while (node && node !== ref.current && isOut(node)) {
        node = node.parentElement;
      }
      if (node !== ref.current && isOut(node)) onBlur();
    };
    ref.current.addEventListener("mouseover", onHover);
    ref.current.addEventListener("mouseout", mouseout);
    return function () {
      if (!ref.current) return;
      ref.current.removeEventListener("mouseover", onHover);
      ref.current.removeEventListener("mouseout", mouseout);
    };
  }, [].concat(_toConsumableArray(deps), [ref.current]));
  return ref;
};
var useHovered = exports.useHovered = function useHovered() {
  var _ref2 = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : {},
    isOut = _ref2.isOut;
  var deps = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : [];
  var _useState = (0, _react.useState)(false),
    _useState2 = _slicedToArray(_useState, 2),
    focused = _useState2[0],
    setFocused = _useState2[1];
  var ref = useHover({
    onHover: function onHover() {
      return setFocused(true);
    },
    onBlur: function onBlur() {
      return setFocused(false);
    },
    isOut: isOut
  }, deps);
  return [ref, focused];
};
var _default = exports["default"] = useHover;