@dnb/eufemia/cjs/fragments/scroll-view/ScrollView.js

DNB Eufemia Design System UI Library

"use strict";
"use client";

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.default = void 0;
var _react = _interopRequireDefault(require("react"));
var _classnames = _interopRequireDefault(require("classnames"));
var _componentHelper = require("../../shared/component-helper.js");
var _Context = _interopRequireDefault(require("../../shared/Context.js"));
var _SpacingHelper = require("../../components/space/SpacingHelper.js");
var _useIsomorphicLayoutEffect = require("../../shared/helpers/useIsomorphicLayoutEffect.js");
function _interopRequireDefault(e) { return e && e.__esModule ? e : { default: e }; }
function _extends() { return _extends = Object.assign ? Object.assign.bind() : function (n) { for (var e = 1; e < arguments.length; e++) { var t = arguments[e]; for (var r in t) ({}).hasOwnProperty.call(t, r) && (n[r] = t[r]); } return n; }, _extends.apply(null, arguments); }
const defaultProps = {
  children: null
};
function ScrollView(localProps) {
  const context = _react.default.useContext(_Context.default);
  const props = (0, _componentHelper.extendPropsWithContext)(localProps, defaultProps, context.ScrollView);
  const {
    interactive,
    children,
    className = null,
    innerRef,
    ...attributes
  } = props;
  const mainParams = {
    className: (0, _classnames.default)('dnb-scroll-view', (0, _SpacingHelper.createSpacingClasses)(props), className),
    ...attributes
  };
  const ref = _react.default.useRef();
  mainParams.ref = innerRef ? innerRef : ref;
  mainParams.tabIndex = useInteractive({
    interactive,
    children,
    ref: mainParams.ref
  });
  (0, _componentHelper.validateDOMAttributes)(props, mainParams);
  return _react.default.createElement("div", mainParams, children);
}
function useInteractive({
  interactive,
  children,
  ref
}) {
  const [isInteractive, setAsInteractive] = _react.default.useState(Boolean(interactive));
  (0, _useIsomorphicLayoutEffect.useIsomorphicLayoutEffect)(() => {
    if (interactive === 'auto') {
      setAsInteractive(hasScrollbar());
    }
  }, [interactive, children]);
  (0, _useIsomorphicLayoutEffect.useIsomorphicLayoutEffect)(() => {
    if (interactive === 'auto' && typeof ResizeObserver !== 'undefined') {
      const observer = new ResizeObserver(() => {
        setAsInteractive(hasScrollbar());
      });
      observer.observe(ref.current);
      return () => observer === null || observer === void 0 ? void 0 : observer.disconnect();
    }
  }, [interactive, ref]);
  if (isInteractive) {
    return 0;
  }
  return undefined;
  function hasScrollbar() {
    if (!ref.current) {
      return true;
    }
    return ref.current.scrollWidth - 1 > ref.current.offsetWidth || ref.current.scrollHeight - 1 > ref.current.offsetHeight;
  }
}
const ScrollViewWithRef = _react.default.forwardRef((props, ref) => {
  return _react.default.createElement(ScrollView, _extends({}, props, {
    innerRef: props.innerRef || ref
  }));
});
ScrollView._supportsSpacingProps = true;
ScrollViewWithRef['_supportsSpacingProps'] = true;
var _default = exports.default = ScrollViewWithRef;
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