creevey/lib/client/shared/components/ImagesView/SideBySideView.js

Cross-browser screenshot testing tool for Storybook with fancy UI Runner

"use strict";

function _typeof(obj) { "@babel/helpers - typeof"; if (typeof Symbol === "function" && typeof Symbol.iterator === "symbol") { _typeof = function _typeof(obj) { return typeof obj; }; } else { _typeof = function _typeof(obj) { return obj && typeof Symbol === "function" && obj.constructor === Symbol && obj !== Symbol.prototype ? "symbol" : typeof obj; }; } return _typeof(obj); }

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

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

var _ImagesView = require("./ImagesView");

var _theming = require("@storybook/theming");

var _helpers = require("../../helpers");

var _components = require("@storybook/components");

function _getRequireWildcardCache(nodeInterop) { if (typeof WeakMap !== "function") return null; var cacheBabelInterop = new WeakMap(); var cacheNodeInterop = new WeakMap(); return (_getRequireWildcardCache = function _getRequireWildcardCache(nodeInterop) { return nodeInterop ? cacheNodeInterop : cacheBabelInterop; })(nodeInterop); }

function _interopRequireWildcard(obj, nodeInterop) { if (!nodeInterop && obj && obj.__esModule) { return obj; } if (obj === null || _typeof(obj) !== "object" && typeof obj !== "function") { return { default: obj }; } var cache = _getRequireWildcardCache(nodeInterop); if (cache && cache.has(obj)) { return cache.get(obj); } var newObj = {}; var hasPropertyDescriptor = Object.defineProperty && Object.getOwnPropertyDescriptor; for (var key in obj) { if (key !== "default" && Object.prototype.hasOwnProperty.call(obj, key)) { var desc = hasPropertyDescriptor ? Object.getOwnPropertyDescriptor(obj, key) : null; if (desc && (desc.get || desc.set)) { Object.defineProperty(newObj, key, desc); } else { newObj[key] = obj[key]; } } } newObj.default = obj; if (cache) { cache.set(obj, newObj); } return newObj; }

function _slicedToArray(arr, i) { return _arrayWithHoles(arr) || _iterableToArrayLimit(arr, i) || _unsupportedIterableToArray(arr, i) || _nonIterableRest(); }

function _nonIterableRest() { throw new TypeError("Invalid attempt to destructure non-iterable instance.\nIn order to be iterable, non-array objects must have a [Symbol.iterator]() method."); }

function _unsupportedIterableToArray(o, minLen) { if (!o) return; if (typeof o === "string") return _arrayLikeToArray(o, minLen); var n = Object.prototype.toString.call(o).slice(8, -1); if (n === "Object" && o.constructor) n = o.constructor.name; if (n === "Map" || n === "Set") return Array.from(o); if (n === "Arguments" || /^(?:Ui|I)nt(?:8|16|32)(?:Clamped)?Array$/.test(n)) return _arrayLikeToArray(o, minLen); }

function _arrayLikeToArray(arr, len) { if (len == null || len > arr.length) len = arr.length; for (var i = 0, arr2 = new Array(len); i < len; i++) { arr2[i] = arr[i]; } return arr2; }

function _iterableToArrayLimit(arr, i) { var _i = arr == null ? null : typeof Symbol !== "undefined" && arr[Symbol.iterator] || arr["@@iterator"]; if (_i == null) return; var _arr = []; var _n = true; var _d = false; var _s, _e; try { for (_i = _i.call(arr); !(_n = (_s = _i.next()).done); _n = true) { _arr.push(_s.value); if (i && _arr.length === i) break; } } catch (err) { _d = true; _e = err; } finally { try { if (!_n && _i["return"] != null) _i["return"](); } finally { if (_d) throw _e; } } return _arr; }

function _arrayWithHoles(arr) { if (Array.isArray(arr)) return arr; }

var Container = _theming.styled.div({
  display: 'flex',
  flexWrap: 'nowrap',
  alignItems: 'center',
  justifyContent: 'center',
  height: '100%',
  width: '100%'
});

var ImagesLayout = _theming.styled.div(function (_ref) {
  var layout = _ref.layout;
  return {
    display: 'flex',
    alignItems: 'flex-start',
    justifyContent: 'flex-start',
    flexDirection: layout == 'horizontal' ? 'row' : 'column',
    '& > :not(:first-of-type)': {
      marginLeft: layout == 'horizontal' ? '20px' : 0,
      marginTop: layout == 'horizontal' ? 0 : '20px'
    }
  };
});

var ImageLink = _theming.styled.a({
  lineHeight: 0,
  flexShrink: 0
});

var ImageDiffLink = _theming.styled.a({
  lineHeight: 0
});

var Image = _theming.styled.img(function (_ref2) {
  var borderColor = _ref2.borderColor;
  return {
    boxSizing: 'border-box',
    border: "1px solid ".concat(borderColor),
    maxWidth: '100%',
    flexShrink: 0
  };
});

var DiffImage = (0, _theming.styled)(Image)({
  flexShrink: 1
});
var SideBySideView = (0, _theming.withTheme)(function (_ref3) {
  var actual = _ref3.actual,
      diff = _ref3.diff,
      expect = _ref3.expect,
      theme = _ref3.theme;

  var _useState = (0, _react.useState)('horizontal'),
      _useState2 = _slicedToArray(_useState, 2),
      layout = _useState2[0],
      setLayout = _useState2[1];

  var _useState3 = (0, _react.useState)(1),
      _useState4 = _slicedToArray(_useState3, 2),
      scale = _useState4[0],
      setScale = _useState4[1];

  var containerRef = (0, _react.useRef)(null);
  var expectImageRef = (0, _react.useRef)(null);
  var diffImageRef = (0, _react.useRef)(null);
  var actualImageRef = (0, _react.useRef)(null);
  var loaded = (0, _helpers.useLoadImages)(expect, diff, actual);
  var calcScale = (0, _react.useCallback)(function () {
    var containerElement = containerRef.current;
    var expectImage = expectImageRef.current;
    var diffImage = diffImageRef.current;
    var actualImage = actualImageRef.current;
    if (!containerElement || !expectImage || !actualImage || !diffImage || !loaded) return setScale(1);
    var borderSize = (0, _helpers.getBorderSize)(diffImage);

    if (layout == 'vertical') {
      var ratio = (diffImage.getBoundingClientRect().width - borderSize * 2) / diffImage.naturalWidth;
      setScale(Math.min(1, ratio));
    }

    if (layout == 'horizontal') {
      var _ratio = // NOTE: 40px because we have two margins by 20px and 6px for borders
      (containerElement.getBoundingClientRect().width - 40 - borderSize * 6) / [expectImage, diffImage, actualImage].map(function (image) {
        return image.naturalWidth;
      }).reduce(function (a, b) {
        return a + b;
      }, 0);

      setScale(Math.min(1, _ratio));
    }
  }, [loaded, layout]);
  (0, _helpers.useResizeObserver)(containerRef, calcScale);
  (0, _react.useLayoutEffect)(calcScale, [calcScale]);
  (0, _react.useLayoutEffect)(function () {
    var diffImage = diffImageRef.current;
    if (!diffImage || !loaded) return;
    var ratio = diffImage.naturalWidth / diffImage.naturalHeight;
    setLayout(ratio >= 2 ? 'vertical' : 'horizontal');
  }, [loaded]);
  (0, _helpers.useApplyScale)(expectImageRef, scale);
  (0, _helpers.useApplyScale)(actualImageRef, scale);
  (0, _react.useEffect)(function () {
    var _window$__CREEVEY_SET, _window;

    if (loaded) (_window$__CREEVEY_SET = (_window = window).__CREEVEY_SET_READY_FOR_CAPTURE__) === null || _window$__CREEVEY_SET === void 0 ? void 0 : _window$__CREEVEY_SET.call(_window);
  }, [loaded]);
  return /*#__PURE__*/_react.default.createElement(Container, {
    ref: containerRef
  }, loaded ? /*#__PURE__*/_react.default.createElement(ImagesLayout, {
    layout: layout
  }, /*#__PURE__*/_react.default.createElement(ImageLink, {
    href: expect,
    target: "_blank",
    rel: "noopener noreferrer"
  }, /*#__PURE__*/_react.default.createElement(Image, {
    ref: expectImageRef,
    borderColor: (0, _ImagesView.getBorderColor)(theme, _ImagesView.themeBorderColors.expect),
    alt: "expect",
    src: expect
  })), /*#__PURE__*/_react.default.createElement(ImageDiffLink, {
    href: diff,
    target: "_blank",
    rel: "noopener noreferrer"
  }, /*#__PURE__*/_react.default.createElement(DiffImage, {
    ref: diffImageRef,
    borderColor: (0, _ImagesView.getBorderColor)(theme, _ImagesView.themeBorderColors.diff),
    alt: "diff",
    src: diff
  })), /*#__PURE__*/_react.default.createElement(ImageLink, {
    href: actual,
    target: "_blank",
    rel: "noopener noreferrer"
  }, /*#__PURE__*/_react.default.createElement(Image, {
    ref: actualImageRef,
    borderColor: (0, _ImagesView.getBorderColor)(theme, _ImagesView.themeBorderColors.actual),
    alt: "actual",
    src: actual
  }))) : /*#__PURE__*/_react.default.createElement(_components.Loader, {
    size: 64
  }));
});
exports.SideBySideView = SideBySideView;