creevey/lib/client/shared/components/ImagesView/SlideView.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.SlideView = void 0;

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

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

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

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({
  position: 'relative',
  display: 'flex'
});

var Input = _theming.styled.input({
  position: 'absolute',
  cursor: 'ew-resize',
  appearance: 'none',
  background: 'none',
  boxShadow: 'none',
  outline: 'none',
  height: '100%',
  width: '100%',
  margin: '0',
  zIndex: 1,
  '&::-webkit-slider-runnable-track': {
    height: '100%'
  },
  '&::-webkit-slider-thumb': {
    boxShadow: '0 0 0 0.5px #888',
    height: '100%',
    width: '0px',
    appearance: 'none'
  },
  '&::-moz-focus-outer': {
    border: '0'
  },
  '&::-moz-range-track': {
    height: '0'
  },
  '&::-moz-range-thumb': {
    border: 'none',
    boxShadow: '0 0 0 0.5px #888',
    height: '100%',
    width: '0px'
  }
});

var ImageContainer = _theming.styled.div({
  position: 'absolute',
  width: '100%',
  height: '100%',
  overflow: 'hidden'
});

var ImageWrapper = (0, _theming.withTheme)(_theming.styled.div(function (_ref) {
  var theme = _ref.theme;
  return {
    background: theme.base == 'light' ? theme.color.mediumlight : theme.color.darker,
    position: 'relative',
    width: '100%',
    height: '100%',
    display: 'flex'
  };
}));

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

var Image = (0, _theming.styled)(BaseImage)({
  position: 'absolute'
});
var DiffImage = (0, _theming.styled)(BaseImage)({
  opacity: '0'
});
var SlideView = (0, _theming.withTheme)(function (_ref3) {
  var actual = _ref3.actual,
      diff = _ref3.diff,
      expect = _ref3.expect,
      theme = _ref3.theme;

  var _useState = (0, _react.useState)(0),
      _useState2 = _slicedToArray(_useState, 2),
      step = _useState2[0],
      setStep = _useState2[1];

  var expectedImageContainerRef = (0, _react.useRef)(null);
  var expectedImageWrapperRef = (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 scale = (0, _helpers.useCalcScale)(diffImageRef, loaded);
  (0, _helpers.useApplyScale)(expectImageRef, scale);
  (0, _helpers.useApplyScale)(actualImageRef, scale);
  var handleSlide = (0, _react.useCallback)(function (event) {
    if (!expectedImageContainerRef.current || !expectedImageWrapperRef.current) return;
    var offset = Number(event.target.value);
    expectedImageContainerRef.current.style.right = "".concat(100 - offset, "%");
    expectedImageWrapperRef.current.style.left = "".concat(100 - offset, "%");
  }, []);
  (0, _react.useLayoutEffect)(function () {
    if (loaded && diffImageRef.current) setStep(100 / diffImageRef.current.getBoundingClientRect().width);
  }, [loaded, scale]);
  (0, _react.useLayoutEffect)(function () {
    if (loaded && expectedImageContainerRef.current && expectedImageWrapperRef.current) {
      expectedImageContainerRef.current.style.right = '100%';
      expectedImageWrapperRef.current.style.left = '100%';
    }
  }, [loaded]);
  (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 loaded ? /*#__PURE__*/_react.default.createElement(Container, null, /*#__PURE__*/_react.default.createElement(Input, {
    type: "range",
    min: 0,
    max: 100,
    defaultValue: 0,
    step: step,
    onChange: handleSlide
  }), /*#__PURE__*/_react.default.createElement(ImageContainer, null, /*#__PURE__*/_react.default.createElement(ImageWrapper, null, /*#__PURE__*/_react.default.createElement(Image, {
    ref: actualImageRef,
    borderColor: (0, _ImagesView.getBorderColor)(theme, _ImagesView.themeBorderColors.actual),
    alt: "actual",
    src: actual
  }))), /*#__PURE__*/_react.default.createElement(ImageContainer, {
    ref: expectedImageContainerRef
  }, /*#__PURE__*/_react.default.createElement(ImageWrapper, {
    ref: expectedImageWrapperRef
  }, /*#__PURE__*/_react.default.createElement(Image, {
    ref: expectImageRef,
    borderColor: (0, _ImagesView.getBorderColor)(theme, _ImagesView.themeBorderColors.expect),
    alt: "expect",
    src: expect
  }))), /*#__PURE__*/_react.default.createElement(DiffImage, {
    ref: diffImageRef,
    borderColor: 'transparent',
    alt: "diff",
    src: diff
  })) : /*#__PURE__*/_react.default.createElement(_components.Loader, {
    size: 64
  });
});
exports.SlideView = SlideView;