效果：

由于我本地开发环境的原因需要修改webpack服务端口

修改：x-spreadsheet\build\webpack.dev.js

const merge = require('webpack-merge');
const common = require('./webpack.config.js');
const HtmlWebpackPlugin = require('html-webpack-plugin');
const CleanWebpackPlugin = require('clean-webpack-plugin');
const MiniCssExtractPlugin = require('mini-css-extract-plugin');

module.exports = merge(common, {
  mode: 'development',
  plugins: [
    new CleanWebpackPlugin(['dist']),
    //  you should know that the HtmlWebpackPlugin by default will generate its own index.html
    new HtmlWebpackPlugin({
      template: './index.html',
      title: 'x-spreadsheet',
    }),
    new MiniCssExtractPlugin({
      // Options similar to the same options in webpackOptions.output
      // both options are optional
      filename: '[name].[contenthash].css',
      // chunkFilename: devMode ? '[id].[hash].css' : '[id].css',
    }),
  ],
  output: {
    filename: '[name].[contenthash].js',
  },
  devtool: 'inline-source-map',
  devServer: {
    disableHostCheck: true,
    host: '0.0.0.0',
    port: 3000, // 暴露端口
    contentBase: '../dist',
  },
});

重点来了

修改：x-spreadsheet\src\locale\en.js增加菜单重命名

export default {
  toolbar: {
    undo: 'Undo',
    redo: 'Redo',
    print: 'Print',
    paintformat: 'Paint format',
    clearformat: 'Clear format',
    format: 'Format',
    fontName: 'Font',
    fontSize: 'Font size',
    fontBold: 'Font bold',
    fontItalic: 'Font italic',
    underline: 'Underline',
    strike: 'Strike',
    color: 'Text color',
    bgcolor: 'Fill color',
    border: 'Borders',
    merge: 'Merge cells',
    align: 'Horizontal align',
    valign: 'Vertical align',
    textwrap: 'Text wrapping',
    freeze: 'Freeze cell',
    autofilter: 'Filter',
    formula: 'Functions',
    more: 'More',
  },
  contextmenu: {
    copy: 'Copy',
    cut: 'Cut',
    paste: 'Paste',
    pasteValue: 'Paste values only',
    pasteFormat: 'Paste format only',
    hide: 'Hide',
    insertRow: 'Insert row',
    insertColumn: 'Insert column',
    deleteSheet: 'Delete',
    deleteRow: 'Delete row',
    deleteColumn: 'Delete column',
    deleteCell: 'Delete cell',
    deleteCellText: 'Delete cell text',
    validation: 'Data validations',
    cellprintable: 'Enable export',
    cellnonprintable: 'Disable export',
    celleditable: 'Enable editing',
    cellnoneditable: 'Disable editing',
    rename: 'Rename', // 菜单重命名
  },
  print: {
    size: 'Paper size',
    orientation: 'Page orientation',
    orientations: ['Landscape', 'Portrait'],
  },
  format: {
    normal: 'Normal',
    text: 'Plain Text',
    number: 'Number',
    percent: 'Percent',
    rmb: 'RMB',
    usd: 'USD',
    eur: 'EUR',
    date: 'Date',
    time: 'Time',
    datetime: 'Date time',
    duration: 'Duration',
  },
  formula: {
    sum: 'Sum',
    average: 'Average',
    max: 'Max',
    min: 'Min',
    _if: 'IF',
    and: 'AND',
    or: 'OR',
    concat: 'Concat',
  },
  validation: {
    required: 'it must be required',
    notMatch: 'it not match its validation rule',
    between: 'it is between {} and {}',
    notBetween: 'it is not between {} and {}',
    notIn: 'it is not in list',
    equal: 'it equal to {}',
    notEqual: 'it not equal to {}',
    lessThan: 'it less than {}',
    lessThanEqual: 'it less than or equal to {}',
    greaterThan: 'it greater than {}',
    greaterThanEqual: 'it greater than or equal to {}',
  },
  error: {
    pasteForMergedCell: 'Unable to do this for merged cells',
  },
  calendar: {
    weeks: ['Sun', 'Mon', 'Tue', 'Wed', 'Thu', 'Fri', 'Sat'],
    months: ['January', 'February', 'March', 'April', 'May', 'June', 'July', 'August', 'September', 'October', 'November', 'December'],
  },
  button: {
    next: 'Next',
    cancel: 'Cancel',
    remove: 'Remove',
    save: 'Save',
    ok: 'OK',
  },
  sort: {
    desc: 'Sort Z -> A',
    asc: 'Sort A -> Z',
  },
  filter: {
    empty: 'empty',
  },
  dataValidation: {
    mode: 'Mode',
    range: 'Cell Range',
    criteria: 'Criteria',
    modeType: {
      cell: 'Cell',
      column: 'Colun',
      row: 'Row',
    },
    type: {
      list: 'List',
      number: 'Number',
      date: 'Date',
      phone: 'Phone',
      email: 'Email',
    },
    operator: {
      be: 'between',
      nbe: 'not betwwen',
      lt: 'less than',
      lte: 'less than or equal to',
      gt: 'greater than',
      gte: 'greater than or equal to',
      eq: 'equal to',
      neq: 'not equal to',
    },
  },
};

修改：Z:\x-spreadsheet\src\locale\zh-cn.js增加中文重命名

export default {
  toolbar: {
    undo: '撤销',
    redo: '恢复',
    print: '打印',
    paintformat: '格式刷',
    clearformat: '清除格式',
    format: '数据格式',
    fontName: '字体',
    fontSize: '字号',
    fontBold: '加粗',
    fontItalic: '倾斜',
    underline: '下划线',
    strike: '删除线',
    color: '字体颜色',
    bgcolor: '填充颜色',
    border: '边框',
    merge: '合并单元格',
    align: '水平对齐',
    valign: '垂直对齐',
    textwrap: '自动换行',
    freeze: '冻结',
    autofilter: '自动筛选',
    formula: '函数',
    more: '更多',
  },
  contextmenu: {
    copy: '复制',
    cut: '剪切',
    paste: '粘贴',
    pasteValue: '粘贴数据',
    pasteFormat: '粘贴格式',
    hide: '隐藏',
    insertRow: '插入行',
    insertColumn: '插入列',
    deleteSheet: '删除',
    deleteRow: '删除行',
    deleteColumn: '删除列',
    deleteCell: '删除',
    deleteCellText: '删除数据',
    validation: '数据验证',
    cellprintable: '可打印',
    cellnonprintable: '不可打印',
    celleditable: '可编辑',
    cellnoneditable: '不可编辑',
    rename: '重命名', // 增加重命名
  },
  print: {
    size: '纸张大小',
    orientation: '方向',
    orientations: ['横向', '纵向'],
  },
  format: {
    normal: '正常',
    text: '文本',
    number: '数值',
    percent: '百分比',
    rmb: '人民币',
    usd: '美元',
    eur: '欧元',
    date: '短日期',
    time: '时间',
    datetime: '长日期',
    duration: '持续时间',
  },
  formula: {
    sum: '求和',
    average: '求平均值',
    max: '求最大值',
    min: '求最小值',
    concat: '字符拼接',
    _if: '条件判断',
    and: '和',
    or: '或',
  },
  validation: {
    required: '此值必填',
    notMatch: '此值不匹配验证规则',
    between: '此值应在 {} 和 {} 之间',
    notBetween: '此值不应在 {} 和 {} 之间',
    notIn: '此值不在列表中',
    equal: '此值应该等于 {}',
    notEqual: '此值不应该等于 {}',
    lessThan: '此值应该小于 {}',
    lessThanEqual: '此值应该小于等于 {}',
    greaterThan: '此值应该大于 {}',
    greaterThanEqual: '此值应该大于等于 {}',
  },
  error: {
    pasteForMergedCell: '无法对合并的单元格执行此操作',
  },
  calendar: {
    weeks: ['日', '一', '二', '三', '四', '五', '六'],
    months: ['一月', '二月', '三月', '四月', '五月', '六月', '七月', '八月', '九月', '十月', '十一月', '十二月'],
  },
  button: {
    next: '下一步',
    cancel: '取消',
    remove: '删除',
    save: '保存',
    ok: '确认',
  },
  sort: {
    desc: '降序',
    asc: '升序',
  },
  filter: {
    empty: '空白',
  },
  dataValidation: {
    mode: '模式',
    range: '单元区间',
    criteria: '条件',
    modeType: {
      cell: '单元格',
      column: '列模式',
      row: '行模式',
    },
    type: {
      list: '列表',
      number: '数字',
      date: '日期',
      phone: '手机号',
      email: '电子邮件',
    },
    operator: {
      be: '在区间',
      nbe: '不在区间',
      lt: '小于',
      lte: '小于等于',
      gt: '大于',
      gte: '大于等于',
      eq: '等于',
      neq: '不等于',
    },
  },
};

修改：Z:\x-spreadsheet\src\locale\locale.js切换到中文

/* global window */
import en from './en';
import zh from './zh-cn';

// Defines the fallback language as English
let $languages = ['zh'];
const $messages = {
  zh
};

function translate(key, messages) {
  if (messages) {
    // Return the translation from the first language in the languages array
    // that has a value for the provided key.
    for (const lang of $languages) {
      if (!messages[lang]) break;

      let message = messages[lang];

      // Splits the key at '.' except where escaped as '\.'
      const keys = key.match(/(?:\\.|[^.])+/g);

      for (let i = 0; i < keys.length; i += 1) {
        const property = keys[i];
        const value = message[property];

        // If value doesn't exist, try next language
        if (!value) break;

        if (i === keys.length - 1) return value;

        // Move down to the next level of the messages object
        message = value;
      }
    }
  }

  return undefined;
}

function t(key) {
  let v = translate(key, $messages);
  if (!v && window && window.x_spreadsheet && window.x_spreadsheet.$messages) {
    v = translate(key, window.x_spreadsheet.$messages);
  }
  return v || '';
}

function tf(key) {
  return () => t(key);
}

// If clearLangList is set to false, lang will be added to the front of the
// languages array. The languages in the language array are searched in order
// to find a translation. This allows the use of other languages as a fallback
// if lang is missing some keys. The language array is preloaded with English.
// To set the languages array to only include lang, set clearLangList to true.
function locale(lang, message, clearLangList = false) {
  if (clearLangList) {
    $languages = [lang];
  } else {
    // Append to front of array.
    // Translation method will use the first language in the list that has a
    // matching key.
    $languages.unshift(lang);
  }

  if (message) {
    $messages[lang] = message;
  }
}

export default {
  t,
};

export {
  locale,
  t,
  tf,
};

修改：x-spreadsheet\src\component\bottombar.js文件

思路：

1.保留原有双击修改sheet名称;

2.右键sheet时，激活(active)当前sheet;

3.点击菜单时判断功能，如果是重命名，则根据active获取index索引，实现重命名功能

import { h } from './element';
import { bindClickoutside, unbindClickoutside } from './event';
import { cssPrefix } from '../config';
import Icon from './icon';
import FormInput from './form_input';
import Dropdown from './dropdown';
// Record: temp not used
// import { xtoast } from './message';
import { tf } from '../locale/locale';

class DropdownMore extends Dropdown {
  constructor(click) {
    const icon = new Icon('ellipsis');
    super(icon, 'auto', false, 'top-left');
    this.contentClick = click;
  }

  reset(items) {
    const eles = items.map((it, i) => h('div', `${cssPrefix}-item`)
      .css('width', '150px')
      .css('font-weight', 'normal')
      .on('click', () => {
        this.contentClick(i);
        this.hide();
      })
      .child(it));
    this.setContentChildren(...eles);
  }

  setTitle() {}
}

const menuItems = [
  { key: 'delete', title: tf('contextmenu.deleteSheet') },
  { key: 'rename', title: tf('contextmenu.rename') }, // 增加菜单重命名
];

function buildMenuItem(item) {
  return h('div', `${cssPrefix}-item`)
    .child(item.title())
    .on('click', () => {
      this.itemClick(item.key);
      this.hide();
    });
}

function buildMenu() {
  return menuItems.map(it => buildMenuItem.call(this, it));
}

class ContextMenu {
  constructor() {
    this.el = h('div', `${cssPrefix}-contextmenu`)
      .css('width', '160px')
      .children(...buildMenu.call(this))
      .hide();
    this.itemClick = () => {};
  }

  hide() {
    const { el } = this;
    el.hide();
    unbindClickoutside(el);
  }

  setOffset(offset) {
    const { el } = this;
    el.offset(offset);
    el.show();
    bindClickoutside(el);
  }
}

export default class Bottombar {
  constructor(addFunc = () => {},
    swapFunc = () => {},
    deleteFunc = () => {},
    updateFunc = () => {}) {
    this.swapFunc = swapFunc;
    this.updateFunc = updateFunc;
    this.dataNames = [];
    this.activeEl = null;
    this.deleteEl = null;
    this.items = [];
    this.moreEl = new DropdownMore((i) => {
      this.clickSwap2(this.items[i]);
    });
    const that = this;
    this.contextMenu = new ContextMenu();
    // eslint-disable-next-line func-names
    this.contextMenu.itemClick = function (p) {
      if (p === 'delete') { // 删除
        deleteFunc();
      } else if (p === 'rename') { // 重命名
        // eslint-disable-next-line no-plusplus
        for (let index = 0; index < that.items.length; index++) {
          if (that.items[index].el.getAttribute('class').includes('active') === true) {
            const item = that.items[index];
            that.sheetRenameItem(item);
            break;
          }
        }
      }
    };
    this.el = h('div', `${cssPrefix}-bottombar`).children(
      this.contextMenu.el,
      this.menuEl = h('ul', `${cssPrefix}-menu`).child(
        h('li', '').children(
          new Icon('add').on('click', () => {
            addFunc();
          }),
          h('span', '').child(this.moreEl),
        ),
      ),
    );
  }

  addItem(name, active, options) {
    this.dataNames.push(name);
    const item = h('li', active ? 'active' : '').child(name);
    item.on('click', () => {
      this.clickSwap2(item);
    }).on('contextmenu', (evt) => {
      if (options.mode === 'read') return;
      const { offsetLeft, offsetHeight } = evt.target;
      this.contextMenu.setOffset({ left: offsetLeft, bottom: offsetHeight + 1 });
      this.deleteEl = item;
      this.clickSwap2(item); // 右键激活当前sheet
    }).on('dblclick', () => {
      if (options.mode === 'read') return;
      this.sheetRenameItem(item); // 双击重命名
    });
    if (active) {
      this.clickSwap(item);
    }
    this.items.push(item);
    this.menuEl.child(item);
    this.moreEl.reset(this.dataNames);
  }

  renameItem(index, value) {
    this.dataNames.splice(index, 1, value);
    this.moreEl.reset(this.dataNames);
    this.items[index].html('').child(value);
    this.updateFunc(index, value);
  }

  clear() {
    this.items.forEach((it) => {
      this.menuEl.removeChild(it.el);
    });
    this.items = [];
    this.dataNames = [];
    this.moreEl.reset(this.dataNames);
  }

  deleteItem() {
    const { activeEl, deleteEl } = this;
    if (this.items.length > 1) {
      const index = this.items.findIndex(it => it === deleteEl);
      this.items.splice(index, 1);
      this.dataNames.splice(index, 1);
      this.menuEl.removeChild(deleteEl.el);
      this.moreEl.reset(this.dataNames);
      if (activeEl === deleteEl) {
        const [f] = this.items;
        this.activeEl = f;
        this.activeEl.toggle();
        return [index, 0];
      }
      return [index, -1];
    }
    return [-1];
  }

  clickSwap2(item) {
    const index = this.items.findIndex(it => it === item);
    this.clickSwap(item);
    this.activeEl.toggle();
    this.swapFunc(index);
  }

  clickSwap(item) {
    if (this.activeEl !== null) {
      this.activeEl.toggle();
    }
    this.activeEl = item;
  }

  sheetRenameItem(item) {
    const v = item.html();
    const input = new FormInput('auto', '');
    input.val(v);
    input.input.on('blur', (key) => {
      this.renameSwitch(key, v);
    }).on('keydown', (key) => {
      const code = key.keyCode || key.which || key.charCode;
      if (code === 13 || code === 27) { // 回车、ESC
        this.renameSwitch(key, v);
      }
    });
    item.html('').child(input.el);
    input.focus();
  }

  renameSwitch(key, v) {
    let { value } = key.target;
    const nindex = this.dataNames.findIndex(it => it === v);
    if (value === '') {
      value = v;
    }
    if (nindex > -1 && value !== '') {
      this.renameItem(nindex, value);
    }
  }
}