初始化

main.js

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+const { Menu, app, BrowserWindow, dialog } = require("electron");
+let fs = require('fs')
+const fontList = require("font-list");
+const path = require("path");
+const child_process = require("child_process");
+console.log(`Node.js: ${process.versions.node}`);
+require("@electron/remote/main").initialize();
+let preFilePath = "";
+app.on("will-finish-launching", () => {
+  app.on("open-file", (e, filePath) => {
+    preFilePath = filePath;
+  });
+  if (process.platform === "win32" && process.argv.length >= 2) {
+    console.log("process argv:", process.argv);
+    // windows系统当没有路径参数时这个位置默认有个.，需要加以判断
+    preFilePath = process.argv[1] === "." ? "" : process.argv[1];
+  }
+});
+const exePath = !app.isPackaged ? process.cwd() : path.dirname(process.execPath)
+console.log(exePath);
+function createWindow() {
+  // Create the browser window.
+  let size = require("electron").screen.getPrimaryDisplay().workAreaSize;
+  //console.log(require('electron').screen.getPrimaryDisplay());
+  let width = parseInt(size.width);
+  var mainWindow;
+  mainWindow = new BrowserWindow({
+    show: false,
+    width: size.width,
+    height: size.height,
+    resizable: false,
+    icon: "public/images/favicon.ico", // sets window icon
+    webPreferences: {
+      preload: path.join(__dirname, "preload.js"),
+      nodeIntegration: true,
+      contextIsolation: false,
+      enableRemoteModule: true,
+    },
+  });
+
+  mainWindow.maximize();
+  // Menu.setApplicationMenu(null);//关闭菜单
+  // and load the index.html of the app.
+  //mainWindow.maximize();
+  if (preFilePath) {
+    let soonData = fs.readFileSync(preFilePath)
+    let j = JSON.parse(soonData.toString());
+    let type = j.soonType ? j.soonType : 1
+    mainWindow.loadURL(`file://${__dirname}/design${type}.html?file=${preFilePath}&type=${type}`);
+  } else {
+    mainWindow.loadFile("index.html");
+  }
+  var close_flag = 0;
+  mainWindow.on("close", function (e) {
+    if (close_flag == 0) {
+      e.preventDefault();
+      mainWindow.webContents.send("close");
+    }
+  });
+  mainWindow.show();
+  // mainWindow.webContents.openDevTools({mode:'bottom'});
+  //1150 width 720 height
+  // Open the DevTools.
+  //mainWindow.webContents.openDevTools()
+  const { ipcMain } = require("electron");
+  ipcMain.on("get-sys-fonts", (event) => {
+    fontList
+      .getFonts()
+      .then((fonts) => {
+        event.reply("font-list", fonts);
+      })
+      .catch((err) => {
+        //console.log(err);
+      });
+  });
+  ipcMain.on("get-sys-language", (event) => {
+    event.reply("sys-lan", app.getLocale());
+  });
+  ipcMain.on("open-help-file", (event) => {
+    let fullpath = path.join(exePath, 'help', 'User Manual.pdf')
+    child_process.exec(`start "" "${fullpath}"`);
+  });
+
+  // 监听从渲染进程发送来的请求
+  ipcMain.on("print-pdf", (event, pdfData) => {
+    // 打印 PDF 数据
+    printPDF(pdfData);
+  });
+
+  function printPDF(pdfData) {
+    // 使用 Electron 的打印对话框或默认打印机进行打印
+    // 创建一个隐藏的webview以加载PDF数据并进行打印
+    const printWindow = new BrowserWindow({ show: true });
+    printWindow.loadURL(pdfData);
+
+    printWindow.webContents.on("did-finish-load", () => {
+      // 使用默认打印机打印PDF
+      printWindow.webContents.print({});
+      console.log("123")
+      //printWindow.close();
+    });
+  }
+  ipcMain.on("open-design-page", (event, arg, type) => {
+    arg = arg ? arg : 'empty'
+    type = type ? type : '1'
+    mainWindow.loadURL(`file://${__dirname}/design${type}.html?file=${arg}&type=${type}`);
+  });
+  ipcMain.on("open-first-page", (event, arg) => {
+    mainWindow.loadURL(`file://${__dirname}/index.html`);
+  });
+  ipcMain.on("run-close", (event, arg) => {
+    close_flag = 1;
+    app.quit();
+  });
+
+  require("@electron/remote/main").enable(mainWindow.webContents);
+}
+
+// This method will be called when Electron has finished
+// initialization and is ready to create browser windows.
+// Some APIs can only be used after this event occurs.
+app.commandLine.appendSwitch("no-sandbox");
+app.whenReady().then(() => {
+  createWindow();
+  require("@electron/remote/main").initialize();
+  app.on("activate", function () {
+    // On macOS it's common to re-create a window in the app when the
+    // dock icon is clicked and there are no other windows open.
+    if (BrowserWindow.getAllWindows().length === 0) createWindow();
+  });
+});
+
+// Quit when all windows are closed, except on macOS. There, it's common
+// for applications and their menu bar to stay active until the user quits
+// explicitly with Cmd + Q.
+app.on("window-all-closed", function () {
+  if (process.platform !== "darwin") app.quit();
+});
+
+// In this file you can include the rest of your app's specific main process
+// code. You can also put them in separate files and require them here.