palette/jsx/shared/SVGWrapper.js

/*
 * Copyright (C) 2015 - 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 PropTypes from 'prop-types'
import $ from 'jquery'

  const DOCUMENT_NODE = 9;
  const ELEMENT_NODE = 1;

  class SVGWrapper extends React.Component {
    static propTypes = {
      url: PropTypes.string.isRequired,
      fillColor: PropTypes.string
    }

    componentDidMount () {
      this.fetchSVG();
    }

    componentWillReceiveProps (newProps) {
      if (newProps.url !== this.props.url) {
        this.fetchSVG();
      }
    }

    fetchSVG () {
      $.ajax(this.props.url, {
        success: function (data) {
          this.svg = data;

          if (data.nodeType === DOCUMENT_NODE) {
            this.svg = data.firstChild;
          }

          if (this.svg.nodeType !== ELEMENT_NODE && this.svg.nodeName !== 'SVG') {
            throw new Error(`SVGWrapper: SVG Element must be returned by request to ${this.props.url}`);
          }

          if (this.props.fillColor) {
            this.svg.setAttribute('style', `fill:${this.props.fillColor}`);
          }

          this.svg.setAttribute('focusable', false);
          this.rootSpan.appendChild(this.svg);
        }.bind(this)
      });
    }

    render () {
      return <span ref={(c) => { this.rootSpan = c; }} />;
    }
  }

export default SVGWrapper