@atlaskit/editor-plugin-show-diff/dist/es2019/pm-plugins/decorations/utils/cellAttrs.js

ShowDiff plugin for @atlaskit/editor-core

import { getDiffableAttrNames } from './diffableAttrs';

/**
 * A cell background as it renders: absent, empty and `"null"` — the string agent payloads send for
 * no background — all mean the cell has none.
 */
export const normalizeCellBackground = background => typeof background === 'string' && background !== '' && background !== 'null' ? background : null;

/** Whether two cells render different backgrounds. */
export const isCellBackgroundChanged = (left, right) => normalizeCellBackground(left.attrs.background) !== normalizeCellBackground(right.attrs.background);

/**
 * Whether two cells differ by an attribute that represents a change, such as their background or
 * span, as opposed to only their content.
 */
export const isCellAttrChanged = (left, right) => {
  var _getDiffableAttrNames;
  return ((_getDiffableAttrNames = getDiffableAttrNames(left.type.name, left.attrs)) !== null && _getDiffableAttrNames !== void 0 ? _getDiffableAttrNames : []).some(name => name === 'background' ? isCellBackgroundChanged(left, right) : left.attrs[name] !== right.attrs[name]);
};