103 lines
3.2 KiB
JavaScript
103 lines
3.2 KiB
JavaScript
// main.js
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const { app, BrowserWindow, dialog, ipcMain } = require('electron'); // 1. 导入 ipcMain
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const path = require('path');
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let mainWindow;
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let switchCount = 0; // 在主进程中也维护一个计数器
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const switchLimit = 3;
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const warningLimit = 2;
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function createWindow () {
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mainWindow = new BrowserWindow({
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// --- 关键修改：设置为全屏无框 ---
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fullscreen: true,
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frame: false,
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resizable: false,
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webPreferences: {
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nodeIntegration: false,
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contextIsolation: true, // 2. 必须开启
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enableRemoteModule: false,
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preload: path.join(__dirname, 'preload.js') // 3. 关键：加载 preload 脚本
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},
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// --- 可选：设置图标 ---
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// icon: path.join(__dirname, 'icon.png')
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});
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mainWindow.loadFile('student_app_fullscreen.html');
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// --- 关键修改：监听窗口失去焦点事件 ---
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mainWindow.on('blur', () => {
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switchCount++;
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console.log(`窗口失去焦点，切屏次数: ${switchCount}`); // 控制台输出日志
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if (switchCount <= warningLimit - 1 ) {
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// 显示警告对话框
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dialog.showMessageBox(mainWindow, {
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type: 'warning',
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title: '切屏警告',
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message: `您进行了切屏操作，此行为已被记录，如您再次进行两次切屏，则会重置考试`,
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buttons: ['确定']
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}).then(() => {
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// 警告后，将焦点重新移回主窗口
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mainWindow.focus();
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});
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} else if (switchCount < switchLimit) {
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// 第三次切屏，重置警告
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dialog.showMessageBox(mainWindow, {
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type: 'warning',
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title: '切屏警告',
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message: `您再次进行了切屏操作，此行为已被记录，如您再次进行一次切屏，则会重置考试`,
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buttons: ['确定']
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}).then(() => {
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mainWindow.focus();
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});
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} else {
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// 超过限制次数
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dialog.showMessageBox(mainWindow, {
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type: 'error',
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title: '切屏过多',
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message: `您因切屏超过误触缓冲次数，重置考试`,
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buttons: ['确定']
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}).then(() => {
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// 重置考试：重新加载页面，重置计数器
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switchCount = 0;
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mainWindow.reload();
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});
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}
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});
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// --- 结束监听 ---
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// 监听窗口关闭事件
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mainWindow.on('closed', () => {
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mainWindow = null;
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});
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}
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// --- 新增：IPC 处理程序 ---
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// 处理来自渲染进程的获取切屏次数请求
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ipcMain.handle('get-switch-count', async () => {
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return switchCount; // 返回当前计数
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});
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// --- 结束新增 ---
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app.whenReady().then(() => {
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createWindow();
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app.on('activate', function () {
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if (BrowserWindow.getAllWindows().length === 0) createWindow();
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});
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});
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app.on('window-all-closed', function () {
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if (process.platform !== 'darwin') app.quit();
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});
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// --- 注释掉或移除旧的 IPC 代码 ---
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// const { ipcMain } = require('electron');
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// ipcMain.on('get-switch-count', (event) => {
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// event.reply('switch-count-reply', switchCount);
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// });
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// ipcMain.on('reset-switch-count', () => {
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// switchCount = 0;
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// });
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// --- 结束注释 ---
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