@kiwicom/orbit-components/lib/LazyImage/index.js

Orbit-components is a React component library which provides developers with the easiest possible way of building Kiwi.com’s products.

"use strict";

var _interopRequireWildcard = require("@babel/runtime/helpers/interopRequireWildcard");

var _interopRequireDefault = require("@babel/runtime/helpers/interopRequireDefault");

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.default = exports.StyledLazyImage = void 0;

var _slicedToArray2 = _interopRequireDefault(require("@babel/runtime/helpers/slicedToArray"));

var _defineProperty2 = _interopRequireDefault(require("@babel/runtime/helpers/defineProperty"));

var React = _interopRequireWildcard(require("react"));

var _styledComponents = _interopRequireDefault(require("styled-components"));

var _defaultTheme = _interopRequireDefault(require("../defaultTheme"));

var FORMATS = {
  WEBP: "webp",
  JPEG: "jpg",
  ANY: "*"
};

var StyledLazyImage = _styledComponents.default.div.withConfig({
  displayName: "LazyImage__StyledLazyImage",
  componentId: "sc-1wyc1sm-0"
})(["width:100%;height:100%;position:absolute;"]);

exports.StyledLazyImage = StyledLazyImage;

var Image = _styledComponents.default.img.withConfig({
  displayName: "LazyImage__Image",
  componentId: "sc-1wyc1sm-1"
})(["z-index:", ";position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);min-width:100%;min-height:100%;opacity:", ";transition:opacity ", " ease-in-out;filter:", ";"], function (_ref) {
  var visible = _ref.visible;
  return visible ? "1" : "0";
}, function (_ref2) {
  var visible = _ref2.visible;
  return visible ? "1" : "0";
}, function (_ref3) {
  var theme = _ref3.theme;
  return theme.orbit.durationFast;
}, function (_ref4) {
  var lowRes = _ref4.lowRes;
  return lowRes && "blur(3px)";
}); // $FlowFixMe: https://github.com/flow-typed/flow-typed/issues/3653#issuecomment-568539198


Image.defaultProps = {
  theme: _defaultTheme.default
};

var getPictureType = function getPictureType(picture) {
  var _TYPES;

  var TYPES = (_TYPES = {}, (0, _defineProperty2.default)(_TYPES, FORMATS.WEBP, "image/webp"), (0, _defineProperty2.default)(_TYPES, FORMATS.JPEG, "image/jpg"), (0, _defineProperty2.default)(_TYPES, FORMATS.ANY, "image"), _TYPES);
  return TYPES[picture];
};

var Picture = function Picture(_ref5) {
  var pictures = _ref5.pictures,
      name = _ref5.name,
      loaded = _ref5.loaded,
      onLoad = _ref5.onLoad,
      lowRes = _ref5.lowRes;
  return /*#__PURE__*/React.createElement("picture", null, Object.keys(pictures).map(function (picture) {
    return /*#__PURE__*/React.createElement(React.Fragment, {
      key: picture
    }, picture !== FORMATS.ANY && /*#__PURE__*/React.createElement("source", {
      srcSet: pictures[picture],
      type: getPictureType(picture)
    }), (picture === "jpg" || picture === "*") && /*#__PURE__*/React.createElement(Image, {
      onLoad: onLoad,
      src: pictures[picture],
      alt: name,
      visible: loaded,
      lowRes: lowRes
    }));
  }));
};

var LazyImage = function LazyImage(_ref6) {
  var placeholder = _ref6.placeholder,
      original = _ref6.original,
      name = _ref6.name;

  var _React$useState = React.useState(false),
      _React$useState2 = (0, _slicedToArray2.default)(_React$useState, 2),
      loaded = _React$useState2[0],
      setLoaded = _React$useState2[1];

  return /*#__PURE__*/React.createElement(StyledLazyImage, null, placeholder ? /*#__PURE__*/React.createElement(React.Fragment, null, /*#__PURE__*/React.createElement(Picture, {
    pictures: original,
    name: name,
    loaded: loaded,
    onLoad: function onLoad() {
      return setLoaded(true);
    }
  }), /*#__PURE__*/React.createElement(Picture, {
    pictures: placeholder,
    lowRes: true,
    name: name,
    loaded: !loaded
  })) : /*#__PURE__*/React.createElement(Picture, {
    pictures: original,
    name: name,
    loaded: true
  }));
};

var _default = LazyImage;
exports.default = _default;