gather-content-ui/dist/lib/Windowing/WindowingScroller.js

GatherContent UI Library

"use strict";

function _typeof(o) { "@babel/helpers - typeof"; return _typeof = "function" == typeof Symbol && "symbol" == typeof Symbol.iterator ? function (o) { return typeof o; } : function (o) { return o && "function" == typeof Symbol && o.constructor === Symbol && o !== Symbol.prototype ? "symbol" : typeof o; }, _typeof(o); }
Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.WindowingScroller = WindowingScroller;
var _react = _interopRequireWildcard(require("react"));
var _debounce = _interopRequireDefault(require("debounce"));
var _Windowing = require("./Windowing");
var _excluded = ["children", "style"]; // @ts-expect-error TS(7016): Could not find a declaration file for module 'debo... Remove this comment to see the full error message
function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { "default": obj }; }
function _getRequireWildcardCache(e) { if ("function" != typeof WeakMap) return null; var r = new WeakMap(), t = new WeakMap(); return (_getRequireWildcardCache = function _getRequireWildcardCache(e) { return e ? t : r; })(e); }
function _interopRequireWildcard(e, r) { if (!r && e && e.__esModule) return e; if (null === e || "object" != _typeof(e) && "function" != typeof e) return { "default": e }; var t = _getRequireWildcardCache(r); if (t && t.has(e)) return t.get(e); var n = { __proto__: null }, a = Object.defineProperty && Object.getOwnPropertyDescriptor; for (var u in e) if ("default" !== u && Object.prototype.hasOwnProperty.call(e, u)) { var i = a ? Object.getOwnPropertyDescriptor(e, u) : null; i && (i.get || i.set) ? Object.defineProperty(n, u, i) : n[u] = e[u]; } return n["default"] = e, t && t.set(e, n), n; }
function _extends() { _extends = Object.assign ? Object.assign.bind() : function (target) { for (var i = 1; i < arguments.length; i++) { var source = arguments[i]; for (var key in source) { if (Object.prototype.hasOwnProperty.call(source, key)) { target[key] = source[key]; } } } return target; }; return _extends.apply(this, arguments); }
function ownKeys(e, r) { var t = Object.keys(e); if (Object.getOwnPropertySymbols) { var o = Object.getOwnPropertySymbols(e); r && (o = o.filter(function (r) { return Object.getOwnPropertyDescriptor(e, r).enumerable; })), t.push.apply(t, o); } return t; }
function _objectSpread(e) { for (var r = 1; r < arguments.length; r++) { var t = null != arguments[r] ? arguments[r] : {}; r % 2 ? ownKeys(Object(t), !0).forEach(function (r) { _defineProperty(e, r, t[r]); }) : Object.getOwnPropertyDescriptors ? Object.defineProperties(e, Object.getOwnPropertyDescriptors(t)) : ownKeys(Object(t)).forEach(function (r) { Object.defineProperty(e, r, Object.getOwnPropertyDescriptor(t, r)); }); } return e; }
function _defineProperty(obj, key, value) { key = _toPropertyKey(key); if (key in obj) { Object.defineProperty(obj, key, { value: value, enumerable: true, configurable: true, writable: true }); } else { obj[key] = value; } return obj; }
function _toPropertyKey(arg) { var key = _toPrimitive(arg, "string"); return _typeof(key) === "symbol" ? key : String(key); }
function _toPrimitive(input, hint) { if (_typeof(input) !== "object" || input === null) return input; var prim = input[Symbol.toPrimitive]; if (prim !== undefined) { var res = prim.call(input, hint || "default"); if (_typeof(res) !== "object") return res; throw new TypeError("@@toPrimitive must return a primitive value."); } return (hint === "string" ? String : Number)(input); }
function _objectWithoutProperties(source, excluded) { if (source == null) return {}; var target = _objectWithoutPropertiesLoose(source, excluded); var key, i; if (Object.getOwnPropertySymbols) { var sourceSymbolKeys = Object.getOwnPropertySymbols(source); for (i = 0; i < sourceSymbolKeys.length; i++) { key = sourceSymbolKeys[i]; if (excluded.indexOf(key) >= 0) continue; if (!Object.prototype.propertyIsEnumerable.call(source, key)) continue; target[key] = source[key]; } } return target; }
function _objectWithoutPropertiesLoose(source, excluded) { if (source == null) return {}; var target = {}; var sourceKeys = Object.keys(source); var key, i; for (i = 0; i < sourceKeys.length; i++) { key = sourceKeys[i]; if (excluded.indexOf(key) >= 0) continue; target[key] = source[key]; } return target; }
function WindowingScroller(_ref) {
  var children = _ref.children,
    style = _ref.style,
    rest = _objectWithoutProperties(_ref, _excluded);
  var _useContext = (0, _react.useContext)(_Windowing.WindowingContext),
    setScrollTop = _useContext.setScrollTop,
    setHeight = _useContext.setHeight,
    containerHeight = _useContext.containerHeight,
    debounceTimer = _useContext.debounceTimer,
    renderIndexes = _useContext.renderIndexes,
    setInViewWindowingIds = _useContext.setInViewWindowingIds,
    allWindowingIds = _useContext.allWindowingIds;
  var ref = (0, _react.useCallback)(function (elem) {
    if (elem !== null) {
      setHeight(elem.getBoundingClientRect().height || containerHeight);
      setScrollTop(elem.scrollTop);
      var debouncedSetScrollTop = (0, _debounce["default"])(function (eventNode) {
        setScrollTop(eventNode.scrollTop);
      }, debounceTimer);
      elem.addEventListener("scroll", function () {
        return debouncedSetScrollTop(elem);
      });
      elem.addEventListener("resize", function () {
        return debouncedSetScrollTop(elem);
      });
    }
  }, []);
  (0, _react.useEffect)(function () {
    var offset = renderIndexes.offset,
      length = renderIndexes.length;
    setInViewWindowingIds(length > 0 ? allWindowingIds.slice(offset, offset + length) : []);
  }, [renderIndexes.offset, renderIndexes.length, allWindowingIds]);
  return /*#__PURE__*/_react["default"].createElement("div", _extends({
    ref: ref,
    "data-testid": "windowing-scroller",
    style: _objectSpread({
      height: containerHeight,
      overflow: "auto",
      position: "relative"
    }, style)
  }, rest), children);
}
WindowingScroller.defaultProps = {
  style: {}
};
//# sourceMappingURL=WindowingScroller.js.map