在主进程启动时，提前预加载菜单数据和缩放配置数据，从而减少主界面的加载耗时。

src/IpcMainHandler.ts

@@ -2,6 +2,7 @@ import { ipcMain, screen, session } from "electron";
 import http from 'http';
 import https from 'https';
 import { URL } from 'url';
+import { ApiResponse, MenuItem, TagResolutionConfig, EIACDesktopApi } from './EIAC_Desktop_Api';
 
 export function initialize(): void {
   // Get primary display（需要注意：size 是逻辑像素尺寸（logical screen size），已被 DPI 缩放影响，需要除以 DPI 缩放比例才是物理像素尺寸（physical screen size））
@@ -97,5 +98,50 @@ export function initialize(): void {
       return false;
     }
   });
+
+  // Get menu cache
+  ipcMain.handle('get-menu-cache', async () => menuData ?? await menuDataReadyPromise);
+
+  // Get config cache
+  ipcMain.handle('get-config-cache', async () => configData ?? await configDataReadyPromise);
 }
 
+let menuData: ApiResponse<MenuItem[]> = null;
+let menuDataReadyPromise: Promise<ApiResponse<MenuItem[]>>;
+let configData: ApiResponse<TagResolutionConfig[]> = null;
+let configDataReadyPromise: Promise<ApiResponse<TagResolutionConfig[]>>;
+
+function getMenuAsync(): void {
+  if (!menuDataReadyPromise) {
+    menuDataReadyPromise = new Promise((resolve, reject) => {
+      EIACDesktopApi.Menu.GetMenuAsync()
+        .then(data => {
+          menuData = data;
+          resolve(data);
+        })
+        .catch(err => {
+          reject(err);
+        });
+    });
+  }
+}
+
+function getConfigAsync(): void {
+  if (!configDataReadyPromise) {
+    configDataReadyPromise = new Promise((resolve, reject) => {
+      EIACDesktopApi.Menu.GetConfigAsync()
+        .then(data => {
+          configData = data;
+          resolve(data);
+        })
+        .catch(err => {
+          reject(err);
+        });
+    });
+  }
+}
+
+export function preloadData(): void {
+  getMenuAsync();
+  getConfigAsync();
+}

src/index.ts

@@ -1,6 +1,6 @@
 import { PageTitleUpdatedEvent } from 'electron';
 import { TabGroup, Tab } from 'electron-tabs';
-import { MenuItem, ApiResponse, EIACDesktopApi } from './EIAC_Desktop_Api';
+import { MenuItem, ApiResponse } from './EIAC_Desktop_Api';
 
 const tabGroup: TabGroup = document.querySelector('tab-group') as TabGroup;
 
@@ -27,7 +27,7 @@ function checkLoginStatus(): void {
  */
 async function getMenuListAsync(): Promise<MenuItem[]> {
   try {
-    const response: ApiResponse<MenuItem[]> = await EIACDesktopApi.Menu.GetMenuAsync();
+    const response: ApiResponse<MenuItem[]> = await window.electronAPI.getMenuCacheAsync();
     if (response.status === 0) {
       return response.data;
     } else {

src/main.ts

@@ -1,7 +1,7 @@
 import { app, BrowserWindow, globalShortcut, Menu, Tray } from 'electron';
 import path from 'node:path';
 import started from 'electron-squirrel-startup';
-import { initialize } from './IpcMainHandler';
+import { initialize, preloadData } from './IpcMainHandler';
 
 const isDevelopment: boolean = process.env.NODE_ENV === 'development';
 
@@ -151,6 +151,7 @@ app.on('window-all-closed', () => {
 // initialization and is ready to create browser windows.
 // Some APIs can only be used after this event occurs.
 app.whenReady().then(() => {
+  preloadData();
   createWindow();
 
   // 在 macOS 平台上，点击 dock 图标时重新创建窗口

src/preload.ts

@@ -2,8 +2,21 @@
 // https://www.electronjs.org/docs/latest/tutorial/process-model#preload-scripts
 
 import { contextBridge, ipcRenderer } from 'electron';
+import { ApiResponse, MenuItem, TagResolutionConfig } from './EIAC_Desktop_Api';
 
 contextBridge.exposeInMainWorld('electronAPI', {
+  /**
+   * 获取菜单缓存
+   * @returns 菜单缓存
+   */
+  getMenuCacheAsync: () => ipcRenderer.invoke('get-menu-cache') as Promise<ApiResponse<MenuItem[]>>,
+
+  /**
+   * 获取配置缓存
+   * @returns 配置缓存
+   */
+  getConfigCacheAsync: () => ipcRenderer.invoke('get-config-cache') as Promise<ApiResponse<TagResolutionConfig[]>>,
+
   /**
    * 在新标签页打开URL
    * @param callback 回调函数，参数为webContentId和url。其中webContentId是请求打开URL的webview的id。

src/types/electron.d.ts

@@ -1,4 +1,16 @@
+import { ApiResponse, MenuItem, TagResolutionConfig } from '../EIAC_Desktop_Api';
+
 export interface ElectronAPI {
+  /**
+   * 获取菜单缓存
+   * @returns 菜单缓存
+   */
+  getMenuCacheAsync: () => Promise<ApiResponse<MenuItem[]>>;
+  /**
+   * 获取配置缓存
+   * @returns 配置缓存
+   */
+  getConfigCacheAsync: () => Promise<ApiResponse<TagResolutionConfig[]>>;
   /**
    * 在新标签页打开URL
    * @param callback 回调函数，参数为webContentId和url。其中webContentId是请求打开URL的webview的id。