feat(desktop): add tray behavior and packaging config

main.js

@@ -1,4 +1,4 @@
-const { app, BrowserWindow, Menu, ipcMain, Notification, shell } = require('electron')
+const { app, BrowserWindow, Menu, Tray, ipcMain, Notification, nativeImage, shell } = require('electron')
 const fs = require('fs')
 const path = require('path')
 
@@ -6,6 +6,10 @@ const isDev = !!process.env.FABRIC_DESKTOP_URL
 const DEFAULT_DEV_URL = 'http://localhost:5173'
 const DEFAULT_PROD_ENTRY = path.join(__dirname, 'offline.html')
 
+let mainWindow = null
+let tray = null
+let isQuitting = false
+
 function configPath() {
   return path.join(app.getPath('userData'), 'fabric-desktop.config.json')
 }
@@ -81,11 +85,72 @@ function createWindow() {
   } else {
     win.loadFile(DEFAULT_PROD_ENTRY)
   }
+
+  win.on('close', (event) => {
+    if (!isQuitting) {
+      event.preventDefault()
+      win.hide()
+    }
+  })
+
+  return win
+}
+
+function createTrayIcon() {
+  if (tray) return tray
+
+  const iconDataUrl =
+    'data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABAAAAAQCAQAAAC1+jfqAAAAfElEQVR4AWNw4PjPwMDA8J+BgYHhP4MDA8N/BgYGhv8MDAwM/2dgYGB4R2JgYGB4w8DAwPCfgYGB4R8DAwPDf4aGhob/BgwMDAz/Z2BgYHhHYmBgYHjDwMDA8J+BgYHhHwMDA8N/hoYGhv8GDAwMDP9nYGBgeEdiYGAAAB7RImfVq6X8AAAAAElFTkSuQmCC'
+  const icon = nativeImage.createFromDataURL(iconDataUrl)
+
+  tray = new Tray(icon)
+  tray.setToolTip('Fabric Desktop')
+
+  const buildTrayMenu = () =>
+    Menu.buildFromTemplate([
+      {
+        label: mainWindow?.isVisible() ? '隐藏窗口' : '显示窗口',
+        click: () => {
+          if (!mainWindow) {
+            mainWindow = createWindow()
+            return
+          }
+          if (mainWindow.isVisible()) mainWindow.hide()
+          else {
+            mainWindow.show()
+            mainWindow.focus()
+          }
+          tray.setContextMenu(buildTrayMenu())
+        },
+      },
+      {
+        label: '退出',
+        click: () => {
+          isQuitting = true
+          app.quit()
+        },
+      },
+    ])
+
+  tray.setContextMenu(buildTrayMenu())
+
+  tray.on('double-click', () => {
+    if (!mainWindow) {
+      mainWindow = createWindow()
+      return
+    }
+    mainWindow.show()
+    mainWindow.focus()
+    tray.setContextMenu(buildTrayMenu())
+  })
+
+  return tray
 }
 
 app.whenReady().then(() => {
   createMenu()
-  createWindow()
+  mainWindow = createWindow()
+  createTrayIcon()
 
   ipcMain.handle('fabric:config:get', () => readConfig())
   ipcMain.handle('fabric:config:set', (_evt, next) => writeConfig(next || {}))
@@ -100,10 +165,15 @@ app.whenReady().then(() => {
   })
 
   app.on('activate', () => {
-    if (BrowserWindow.getAllWindows().length === 0) createWindow()
+    if (BrowserWindow.getAllWindows().length === 0) mainWindow = createWindow()
+    else if (mainWindow && !mainWindow.isVisible()) mainWindow.show()
+  })
+
+  app.on('before-quit', () => {
+    isQuitting = true
   })
 })
 
 app.on('window-all-closed', () => {
-  if (process.platform !== 'darwin') app.quit()
+  // 保持后台驻留，由托盘控制退出
 })