cspace-ui/lib/components/media/Image.js

CollectionSpace user interface for browsers

"use strict";

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.default = void 0;
var _react = _interopRequireWildcard(require("react"));
var _propTypes = _interopRequireDefault(require("prop-types"));
var _get = _interopRequireDefault(require("lodash/get"));
var _Image = _interopRequireDefault(require("../../../styles/cspace-ui/Image.css"));
function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
function _getRequireWildcardCache(e) { if ("function" != typeof WeakMap) return null; var r = new WeakMap(), t = new WeakMap(); return (_getRequireWildcardCache = function (e) { return e ? t : r; })(e); }
function _interopRequireWildcard(e, r) { if (!r && e && e.__esModule) return e; if (null === e || "object" != typeof e && "function" != typeof e) return { default: e }; var t = _getRequireWildcardCache(r); if (t && t.has(e)) return t.get(e); var n = { __proto__: null }, a = Object.defineProperty && Object.getOwnPropertyDescriptor; for (var u in e) if ("default" !== u && {}.hasOwnProperty.call(e, u)) { var i = a ? Object.getOwnPropertyDescriptor(e, u) : null; i && (i.get || i.set) ? Object.defineProperty(n, u, i) : n[u] = e[u]; } return n.default = e, t && t.set(e, n), n; }
function _extends() { _extends = Object.assign ? Object.assign.bind() : function (target) { for (var i = 1; i < arguments.length; i++) { var source = arguments[i]; for (var key in source) { if (Object.prototype.hasOwnProperty.call(source, key)) { target[key] = source[key]; } } } return target; }; return _extends.apply(this, arguments); } /* global window */
const propTypes = {
  src: _propTypes.default.string.isRequired,
  alt: _propTypes.default.string,
  errorMessage: _propTypes.default.node,
  pendingMessage: _propTypes.default.node,
  retry: _propTypes.default.bool,
  retryLimit: _propTypes.default.number,
  readImage: _propTypes.default.func.isRequired
};
const defaultProps = {
  errorMessage: '',
  pendingMessage: '',
  retry: false,
  retryLimit: 5
};

/**
 * A replacement for img that gets images from the CollectionSpace REST API using token auth.
 */
class Image extends _react.Component {
  constructor(props) {
    super(props);
    this.state = {
      blobUrl: null
    };
  }
  componentDidMount() {
    this.readImage();
  }
  componentDidUpdate(prevProps) {
    const {
      src
    } = this.props;
    const {
      src: prevSrc
    } = prevProps;
    if (src !== prevSrc) {
      this.reset();
      this.readImage();
    }
  }
  componentWillUnmount() {
    this.reset();
    this.isUnmounted = true;
  }
  reset() {
    const {
      blobUrl
    } = this.state;
    if (blobUrl) {
      URL.revokeObjectURL(blobUrl);
      this.setState({
        blobUrl: null
      });
    }
    if (this.retryTimer) {
      window.clearTimeout(this.retryTimer);
      this.retryTimer = null;
    }
  }
  tryReadImage(retriesRemaining) {
    const {
      src,
      retryLimit,
      readImage
    } = this.props;
    readImage(src).then(response => {
      if (response.status === 200 && response.data && !this.isUnmounted) {
        this.setState({
          blobUrl: URL.createObjectURL(response.data)
        });
      }
    }).catch(error => {
      if (!this.isUnmounted) {
        if ((0, _get.default)(error, ['response', 'status']) === 404 && retriesRemaining > 0) {
          // Make retries back off exponentially.

          const pauseTime = 2 ** (retryLimit - retriesRemaining) * 1000;
          this.retryTimer = window.setTimeout(() => {
            this.tryReadImage(retriesRemaining - 1);
          }, pauseTime);
        } else {
          this.setState({
            isError: true
          });
        }
      }
    });
  }
  readImage() {
    const {
      retry,
      retryLimit
    } = this.props;
    const retriesRemaining = retry ? retryLimit : 0;
    this.tryReadImage(retriesRemaining);
  }
  render() {
    const {
      alt,
      errorMessage,
      pendingMessage,
      src,
      retry,
      retryLimit,
      readImage,
      ...remainingProps
    } = this.props;
    const {
      blobUrl,
      isError
    } = this.state;
    if (isError) {
      return /*#__PURE__*/_react.default.createElement("div", {
        className: _Image.default.error
      }, errorMessage);
    }
    if (blobUrl) {
      return /*#__PURE__*/_react.default.createElement("img", _extends({
        className: _Image.default.normal,
        src: blobUrl,
        alt: alt
      }, remainingProps));
    }
    return /*#__PURE__*/_react.default.createElement("div", {
      className: _Image.default.pending
    }, pendingMessage);
  }
}
exports.default = Image;
Image.propTypes = propTypes;
Image.defaultProps = defaultProps;