@retailmenot/anchor/esm/thememerge.js

A React UI Library by RetailMeNot

import { e as _typeof } from './anchor-chunk-7b9d8557.js';
import { RootTheme } from './theme.js';
import './anchor-chunk-210b63ef.js';
import './skeleton.js';
import './anchor-chunk-27f34e54.js';
import 'react';
import 'classnames';
import '@xstyled/styled-components';
import '@xstyled/system';
import 'polished';
import './anchor-chunk-e1ca097b.js';
import './anchor-chunk-cd7ef49a.js';
import './anchor-chunk-20e4020f.js';

function deepClone(data) {
  if (typeof data === null || _typeof(data) !== 'object' || Array.isArray(data)) {
    return data;
  } // Using constructor(), creates a new instance of the object in memory rather than a reference


  var tmpObj = data.constructor();

  for (var key in data) {
    if (data.hasOwnProperty(key)) {
      tmpObj[key] = deepClone(data[key]);
    }
  }

  return tmpObj;
} // eslint-disable-next-line @typescript-eslint/explicit-function-return-type


function recursiveUpdate(settingStep, newThemeStep) {
  for (var key in settingStep) {
    // If the user has passed undefined as a value, delete the associated property
    if (settingStep.hasOwnProperty(key) && settingStep[key] === undefined) {
      delete newThemeStep[key];
    } // Else if the value isn't an object literal then update the theme with that value
    else if (settingStep.hasOwnProperty(key) && (_typeof(settingStep[key]) !== 'object' || Array.isArray(settingStep[key]))) {
        newThemeStep[key] = settingStep[key];
      } // Else if the key doesn't already exist in the new theme, add it, and continue recursion
      else if (settingStep.hasOwnProperty(key) && !newThemeStep[key]) {
          newThemeStep[key] = {};
          recursiveUpdate(settingStep[key], newThemeStep[key]);
        } // Else continue recursion
        else {
            recursiveUpdate(settingStep[key], newThemeStep[key]);
          }
  }
}

function themeMerge(settings) {
  var baseTheme = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : RootTheme;
  var newTheme = deepClone(baseTheme);

  for (var key in settings) {
    if (settings[key]) {
      if (!newTheme.hasOwnProperty(key)) {
        // Adds new keys to the root of the object
        newTheme[key] = settings[key];
      } else {
        // Updates baseTheme defaults with new values
        recursiveUpdate(settings[key], newTheme[key]);
      }
    }
  }

  return newTheme;
}

export { themeMerge };
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