rc-util/es/PortalWrapper.js

Common Utils For React Component

import _classCallCheck from "@babel/runtime/helpers/esm/classCallCheck";
import _createClass from "@babel/runtime/helpers/esm/createClass";
import _inherits from "@babel/runtime/helpers/esm/inherits";
import _possibleConstructorReturn from "@babel/runtime/helpers/esm/possibleConstructorReturn";
import _getPrototypeOf from "@babel/runtime/helpers/esm/getPrototypeOf";
import _typeof from "@babel/runtime/helpers/esm/typeof";

function _createSuper(Derived) { var hasNativeReflectConstruct = _isNativeReflectConstruct(); return function _createSuperInternal() { var Super = _getPrototypeOf(Derived), result; if (hasNativeReflectConstruct) { var NewTarget = _getPrototypeOf(this).constructor; result = Reflect.construct(Super, arguments, NewTarget); } else { result = Super.apply(this, arguments); } return _possibleConstructorReturn(this, result); }; }

function _isNativeReflectConstruct() { if (typeof Reflect === "undefined" || !Reflect.construct) return false; if (Reflect.construct.sham) return false; if (typeof Proxy === "function") return true; try { Date.prototype.toString.call(Reflect.construct(Date, [], function () {})); return true; } catch (e) { return false; } }

/* eslint-disable no-underscore-dangle,react/require-default-props */
import * as React from 'react';
import raf from './raf';
import Portal from './Portal';
import canUseDom from './Dom/canUseDom';
import switchScrollingEffect from './switchScrollingEffect';
import setStyle from './setStyle';
import ScrollLocker from './Dom/scrollLocker';
var openCount = 0;
var supportDom = canUseDom();
/** @private Test usage only */

export function getOpenCount() {
  return process.env.NODE_ENV === 'test' ? openCount : 0;
} // https://github.com/ant-design/ant-design/issues/19340
// https://github.com/ant-design/ant-design/issues/19332

var cacheOverflow = {};

var getParent = function getParent(getContainer) {
  if (!supportDom) {
    return null;
  }

  if (getContainer) {
    if (typeof getContainer === 'string') {
      return document.querySelectorAll(getContainer)[0];
    }

    if (typeof getContainer === 'function') {
      return getContainer();
    }

    if (_typeof(getContainer) === 'object' && getContainer instanceof window.HTMLElement) {
      return getContainer;
    }
  }

  return document.body;
};

var PortalWrapper = /*#__PURE__*/function (_React$Component) {
  _inherits(PortalWrapper, _React$Component);

  var _super = _createSuper(PortalWrapper);

  function PortalWrapper(props) {
    var _this;

    _classCallCheck(this, PortalWrapper);

    _this = _super.call(this, props);
    _this.componentRef = React.createRef();

    _this.updateScrollLocker = function (prevProps) {
      var _ref = prevProps || {},
          prevVisible = _ref.visible;

      var _this$props = _this.props,
          getContainer = _this$props.getContainer,
          visible = _this$props.visible;

      if (visible && visible !== prevVisible && supportDom && getParent(getContainer) !== _this.scrollLocker.getContainer()) {
        _this.scrollLocker.reLock({
          container: getParent(getContainer)
        });
      }
    };

    _this.updateOpenCount = function (prevProps) {
      var _ref2 = prevProps || {},
          prevVisible = _ref2.visible,
          prevGetContainer = _ref2.getContainer;

      var _this$props2 = _this.props,
          visible = _this$props2.visible,
          getContainer = _this$props2.getContainer; // Update count

      if (visible !== prevVisible && supportDom && getParent(getContainer) === document.body) {
        if (visible && !prevVisible) {
          openCount += 1;
        } else if (prevProps) {
          openCount -= 1;
        }
      } // Clean up container if needed


      var getContainerIsFunc = typeof getContainer === 'function' && typeof prevGetContainer === 'function';

      if (getContainerIsFunc ? getContainer.toString() !== prevGetContainer.toString() : getContainer !== prevGetContainer) {
        _this.removeCurrentContainer();
      }
    };

    _this.attachToParent = function () {
      var force = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : false;

      if (force || _this.container && !_this.container.parentNode) {
        var parent = getParent(_this.props.getContainer);

        if (parent) {
          parent.appendChild(_this.container);
          return true;
        }

        return false;
      }

      return true;
    };

    _this.getContainer = function () {
      if (!supportDom) {
        return null;
      }

      if (!_this.container) {
        _this.container = document.createElement('div');

        _this.attachToParent(true);
      }

      _this.setWrapperClassName();

      return _this.container;
    };

    _this.setWrapperClassName = function () {
      var wrapperClassName = _this.props.wrapperClassName;

      if (_this.container && wrapperClassName && wrapperClassName !== _this.container.className) {
        _this.container.className = wrapperClassName;
      }
    };

    _this.removeCurrentContainer = function () {
      var _this$container, _this$container$paren;

      // Portal will remove from `parentNode`.
      // Let's handle this again to avoid refactor issue.
      (_this$container = _this.container) === null || _this$container === void 0 ? void 0 : (_this$container$paren = _this$container.parentNode) === null || _this$container$paren === void 0 ? void 0 : _this$container$paren.removeChild(_this.container);
    };
    /**
     * Enhance ./switchScrollingEffect
     * 1. Simulate document body scroll bar with
     * 2. Record body has overflow style and recover when all of PortalWrapper invisible
     * 3. Disable body scroll when PortalWrapper has open
     *
     * @memberof PortalWrapper
     */


    _this.switchScrollingEffect = function () {
      if (openCount === 1 && !Object.keys(cacheOverflow).length) {
        switchScrollingEffect(); // Must be set after switchScrollingEffect

        cacheOverflow = setStyle({
          overflow: 'hidden',
          overflowX: 'hidden',
          overflowY: 'hidden'
        });
      } else if (!openCount) {
        setStyle(cacheOverflow);
        cacheOverflow = {};
        switchScrollingEffect(true);
      }
    };

    _this.scrollLocker = new ScrollLocker({
      container: getParent(props.getContainer)
    });
    return _this;
  }

  _createClass(PortalWrapper, [{
    key: "componentDidMount",
    value: function componentDidMount() {
      var _this2 = this;

      this.updateOpenCount();

      if (!this.attachToParent()) {
        this.rafId = raf(function () {
          _this2.forceUpdate();
        });
      }
    }
  }, {
    key: "componentDidUpdate",
    value: function componentDidUpdate(prevProps) {
      this.updateOpenCount(prevProps);
      this.updateScrollLocker(prevProps);
      this.setWrapperClassName();
      this.attachToParent();
    }
  }, {
    key: "componentWillUnmount",
    value: function componentWillUnmount() {
      var _this$props3 = this.props,
          visible = _this$props3.visible,
          getContainer = _this$props3.getContainer;

      if (supportDom && getParent(getContainer) === document.body) {
        // 离开时不会 render， 导到离开时数值不变，改用 func 。。
        openCount = visible && openCount ? openCount - 1 : openCount;
      }

      this.removeCurrentContainer();
      raf.cancel(this.rafId);
    }
  }, {
    key: "render",
    value: function render() {
      var _this$props4 = this.props,
          children = _this$props4.children,
          forceRender = _this$props4.forceRender,
          visible = _this$props4.visible;
      var portal = null;
      var childProps = {
        getOpenCount: function getOpenCount() {
          return openCount;
        },
        getContainer: this.getContainer,
        switchScrollingEffect: this.switchScrollingEffect,
        scrollLocker: this.scrollLocker
      };

      if (forceRender || visible || this.componentRef.current) {
        portal = /*#__PURE__*/React.createElement(Portal, {
          getContainer: this.getContainer,
          ref: this.componentRef
        }, children(childProps));
      }

      return portal;
    }
  }]);

  return PortalWrapper;
}(React.Component);

export default PortalWrapper;