react-bootstrap/lib/Portal.js

Bootstrap 3 components build with React

'use strict';

var _interopRequireDefault = require('babel-runtime/helpers/interop-require-default')['default'];

exports.__esModule = true;

var _react = require('react');

var _react2 = _interopRequireDefault(_react);

var _utilsCustomPropTypes = require('./utils/CustomPropTypes');

var _utilsCustomPropTypes2 = _interopRequireDefault(_utilsCustomPropTypes);

var _utilsDomUtils = require('./utils/domUtils');

var _utilsDomUtils2 = _interopRequireDefault(_utilsDomUtils);

var Portal = _react2['default'].createClass({

  displayName: 'Portal',

  propTypes: {
    /**
     * The DOM Node that the Component will render it's children into
     */
    container: _utilsCustomPropTypes2['default'].mountable
  },

  componentDidMount: function componentDidMount() {
    this._renderOverlay();
  },

  componentDidUpdate: function componentDidUpdate() {
    this._renderOverlay();
  },

  componentWillUnmount: function componentWillUnmount() {
    this._unrenderOverlay();
    this._unmountOverlayTarget();
  },

  _mountOverlayTarget: function _mountOverlayTarget() {
    if (!this._overlayTarget) {
      this._overlayTarget = document.createElement('div');
      this.getContainerDOMNode().appendChild(this._overlayTarget);
    }
  },

  _unmountOverlayTarget: function _unmountOverlayTarget() {
    if (this._overlayTarget) {
      this.getContainerDOMNode().removeChild(this._overlayTarget);
      this._overlayTarget = null;
    }
  },

  _renderOverlay: function _renderOverlay() {

    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 = _react2['default'].render(overlay, this._overlayTarget);
    } else {
      // Unrender if the component is null for transitions to null
      this._unrenderOverlay();
      this._unmountOverlayTarget();
    }
  },

  _unrenderOverlay: function _unrenderOverlay() {
    if (this._overlayTarget) {
      _react2['default'].unmountComponentAtNode(this._overlayTarget);
      this._overlayInstance = null;
    }
  },

  render: function render() {
    return null;
  },

  getOverlayDOMNode: function getOverlayDOMNode() {
    if (!this.isMounted()) {
      throw new Error('getOverlayDOMNode(): A component must be mounted to have a DOM node.');
    }

    if (this._overlayInstance) {
      if (this._overlayInstance.getWrappedDOMNode) {
        return this._overlayInstance.getWrappedDOMNode();
      } else {
        return _react2['default'].findDOMNode(this._overlayInstance);
      }
    }

    return null;
  },

  getContainerDOMNode: function getContainerDOMNode() {
    return _react2['default'].findDOMNode(this.props.container) || _utilsDomUtils2['default'].ownerDocument(this).body;
  }
});

exports['default'] = Portal;
module.exports = exports['default'];