@instructure/canvas-rce/es/rce/DraggingBlocker.js

A component wrapping Canvas's usage of Tinymce

/*
 * Copyright (C) 2019 - present Instructure, Inc.
 *
 * This file is part of Canvas.
 *
 * Canvas is free software: you can redistribute it and/or modify it under
 * the terms of the GNU Affero General Public License as published by the Free
 * Software Foundation, version 3 of the License.
 *
 * Canvas is distributed in the hope that it will be useful, but WITHOUT ANY
 * WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
 * A PARTICULAR PURPOSE. See the GNU Affero General Public License for more
 * details.
 *
 * You should have received a copy of the GNU Affero General Public License along
 * with this program. If not, see <http://www.gnu.org/licenses/>.
 */

import React from 'react';
import { bool } from 'prop-types';

// The purpose of the dragging blocker is to keep the TinyMCE iframe from
// intercepting and swallowing the mouse events if the mouse winds up over the
// iframe while performing the drag. This is what TinyMCE itself does with its
// own resize handle.
export default function DraggingBlocker(props) {
  if (props.dragging) {
    return /*#__PURE__*/React.createElement("div", {
      style: {
        cursor: 'ns-resize',
        position: 'fixed',
        top: 0,
        left: 0,
        width: '100%',
        height: '100%',
        zIndex: '1000000000000'
      }
    });
  } else {
    return null;
  }
}
DraggingBlocker.propTypes = {
  dragging: bool.isRequired
};