devongovett-react-overlays/lib/Portal.js

Utilities for creating robust overlay components

'use strict';

exports.__esModule = true;

var _propTypes = require('prop-types');

var _propTypes2 = _interopRequireDefault(_propTypes);

var _componentOrElement = require('prop-types-extra/lib/componentOrElement');

var _componentOrElement2 = _interopRequireDefault(_componentOrElement);

var _react = require('react');

var _react2 = _interopRequireDefault(_react);

var _reactDom = require('react-dom');

var _reactDom2 = _interopRequireDefault(_reactDom);

var _getContainer = require('./utils/getContainer');

var _getContainer2 = _interopRequireDefault(_getContainer);

var _ownerDocument = require('./utils/ownerDocument');

var _ownerDocument2 = _interopRequireDefault(_ownerDocument);

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

function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }

function _possibleConstructorReturn(self, call) { if (!self) { throw new ReferenceError("this hasn't been initialised - super() hasn't been called"); } return call && (typeof call === "object" || typeof call === "function") ? call : self; }

function _inherits(subClass, superClass) { if (typeof superClass !== "function" && superClass !== null) { throw new TypeError("Super expression must either be null or a function, not " + typeof superClass); } subClass.prototype = Object.create(superClass && superClass.prototype, { constructor: { value: subClass, enumerable: false, writable: true, configurable: true } }); if (superClass) Object.setPrototypeOf ? Object.setPrototypeOf(subClass, superClass) : subClass.__proto__ = superClass; }

/**
 * The `<Portal/>` component renders its children into a new "subtree" outside of current component hierarchy.
 * You can think of it as a declarative `appendChild()`, or jQuery's `$.fn.appendTo()`.
 * The children of `<Portal/>` component will be appended to the `container` specified.
 */
var Portal = function (_React$Component) {
  _inherits(Portal, _React$Component);

  function Portal() {
    var _temp, _this, _ret;

    _classCallCheck(this, Portal);

    for (var _len = arguments.length, args = Array(_len), _key = 0; _key < _len; _key++) {
      args[_key] = arguments[_key];
    }

    return _ret = (_temp = (_this = _possibleConstructorReturn(this, _React$Component.call.apply(_React$Component, [this].concat(args))), _this), _this._mountOverlayTarget = function () {
      if (!_this._overlayTarget) {
        _this._overlayTarget = document.createElement('div');
        _this._portalContainerNode = (0, _getContainer2.default)(_this.props.container, (0, _ownerDocument2.default)(_this).body);
        _this._portalContainerNode.appendChild(_this._overlayTarget);
      }
    }, _this._unmountOverlayTarget = function () {
      if (_this._overlayTarget) {
        _this._portalContainerNode.removeChild(_this._overlayTarget);
        _this._overlayTarget = null;
      }
      _this._portalContainerNode = null;
    }, _this._renderOverlay = function () {

      var overlay = !_this.props.children ? null : _react2.default.Children.only(_this.props.children);

      // Save reference for future access.
      if (overlay !== null) {
        _this._mountOverlayTarget();
        _this._overlayInstance = _reactDom2.default.unstable_renderSubtreeIntoContainer(_this, overlay, _this._overlayTarget);
      } else {
        // Unrender if the component is null for transitions to null
        _this._unrenderOverlay();
        _this._unmountOverlayTarget();
      }
    }, _this._unrenderOverlay = function () {
      if (_this._overlayTarget) {
        _reactDom2.default.unmountComponentAtNode(_this._overlayTarget);
        _this._overlayInstance = null;
      }
    }, _this.getMountNode = function () {
      return _this._overlayTarget;
    }, _this.getOverlayDOMNode = function () {
      if (!_this._isMounted) {
        throw new Error('getOverlayDOMNode(): A component must be mounted to have a DOM node.');
      }

      if (_this._overlayInstance) {
        return _reactDom2.default.findDOMNode(_this._overlayInstance);
      }

      return null;
    }, _temp), _possibleConstructorReturn(_this, _ret);
  }

  Portal.prototype.componentDidMount = function componentDidMount() {
    this._isMounted = true;
    this._renderOverlay();
  };

  Portal.prototype.componentDidUpdate = function componentDidUpdate() {
    this._renderOverlay();
  };

  Portal.prototype.componentWillReceiveProps = function componentWillReceiveProps(nextProps) {
    if (this._overlayTarget && nextProps.container !== this.props.container) {
      this._portalContainerNode.removeChild(this._overlayTarget);
      this._portalContainerNode = (0, _getContainer2.default)(nextProps.container, (0, _ownerDocument2.default)(this).body);
      this._portalContainerNode.appendChild(this._overlayTarget);
    }
  };

  Portal.prototype.componentWillUnmount = function componentWillUnmount() {
    this._isMounted = false;
    this._unrenderOverlay();
    this._unmountOverlayTarget();
  };

  Portal.prototype.render = function render() {
    return null;
  };

  return Portal;
}(_react2.default.Component);

Portal.displayName = 'Portal';
Portal.propTypes = {
  /**
   * A Node, Component instance, or function that returns either. The `container` will have the Portal children
   * appended to it.
   */
  container: _propTypes2.default.oneOfType([_componentOrElement2.default, _propTypes2.default.func])
};
exports.default = Portal;
module.exports = exports['default'];