's'

electron/main.js

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+const { app, BrowserWindow, ipcMain } = require('electron')
+const path = require('path')
+const fs = require('fs')
+
+const AGREEMENT_FILE = 'user-agreement-accepted.json'
+
+function agreementPath() {
+  return path.join(app.getPath('userData'), AGREEMENT_FILE)
+}
+
+function hasAcceptedAgreement() {
+  try {
+    return fs.existsSync(agreementPath())
+  } catch {
+    return false
+  }
+}
+
+function markAgreementAccepted() {
+  fs.writeFileSync(
+    agreementPath(),
+    JSON.stringify({ v: 1, acceptedAt: Date.now() }, null, 2),
+    'utf8'
+  )
+}
+
+/** 占位主窗口；合并到实际桌面端时请替换为真实 loadURL / loadFile */
+function createMainWindow() {
+  const win = new BrowserWindow({
+    width: 960,
+    height: 640,
+    webPreferences: {
+      contextIsolation: true,
+      nodeIntegration: false,
+    },
+  })
+  win.loadURL('about:blank')
+  return win
+}
+
+function showAgreementGate(onAccepted) {
+  const win = new BrowserWindow({
+    width: 520,
+    height: 680,
+    show: false,
+    resizable: true,
+    minimizable: false,
+    maximizable: false,
+    fullscreenable: false,
+    webPreferences: {
+      preload: path.join(__dirname, 'preload.js'),
+      contextIsolation: true,
+      nodeIntegration: false,
+    },
+  })
+
+  win.loadFile(path.join(__dirname, 'agreement.html'))
+  win.once('ready-to-show', () => win.show())
+
+  ipcMain.once('agreement-accept', () => {
+    markAgreementAccepted()
+    ipcMain.removeAllListeners('agreement-refuse')
+    win.close()
+    onAccepted()
+  })
+
+  ipcMain.once('agreement-refuse', () => {
+    ipcMain.removeAllListeners('agreement-accept')
+    app.quit()
+  })
+
+  win.on('closed', () => {
+    if (!hasAcceptedAgreement()) {
+      app.quit()
+    }
+  })
+}
+
+app.whenReady().then(() => {
+  if (!hasAcceptedAgreement()) {
+    showAgreementGate(() => createMainWindow())
+  } else {
+    createMainWindow()
+  }
+})
+
+app.on('window-all-closed', () => {
+  if (process.platform !== 'darwin') {
+    app.quit()
+  }
+})