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feat: Computer Use — Windows 跨平台支持 + GUI 无障碍增强 + Python Bridge
三平台 Computer Use (macOS + Windows + Linux),Windows 专项增强。
- MCP server: toolCalls/tools/executor/mcpServer 等 12 文件完整实现
- 平台抽象层: platforms/{win32,darwin,linux}.ts
- 跨平台 executor: executorCrossPlatform.ts
- CHICAGO_MCP + VOICE_MODE feature flags 启用
- windowMessage.ts: SendMessageW (WM_CHAR Unicode + 剪贴板粘贴)
- windowBorder.ts: 4 叠加窗口边框 (30fps 跟踪)
- uiAutomation.ts: UI Automation 元素树/点击/写值
- accessibilitySnapshot.ts: 无障碍快照 → 模型感知 GUI
- bridge.py + bridgeClient.ts: Python 长驻进程 (替代 per-call PS)
- window_management: min/max/restore/close/focus (Win32 API)
- click_element / type_into_element: 按名称操作 (无需坐标)
- 截图自动附带 Accessibility Snapshot
- 17 种方法, stdin/stdout JSON 通信
- 窗口枚举 1.5ms vs PS 500ms, 截图 360ms vs PS 800ms
- 依赖: mss + Pillow + pywinauto
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docs/features/computer-use-architecture-v2.md
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docs/features/computer-use-architecture-v2.md
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# Computer Use 架构修正方案 v2
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更新时间:2026-04-04
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## 1. 当前架构的问题
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### 问题 A:平台代码混在错误的包里
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`@ant/computer-use-swift` 是 macOS Swift 原生模块的包装器,但我们把 Windows(`backends/win32.ts`)和 Linux(`backends/linux.ts`)的截图/应用管理代码塞进了这个包。"swift" 在名字里就意味着 macOS,后期维护者无法区分。
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`@ant/computer-use-input` 同样——原本是 macOS enigo Rust 模块,我们也往里面塞了 win32/linux 后端。
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### 问题 B:输入方式不对
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当前 Windows 后端(`packages/@ant/computer-use-input/src/backends/win32.ts`)使用 `SetCursorPos` + `SendInput` + `keybd_event`——这是**全局输入**:
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- 鼠标真的会移动到屏幕上
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- 键盘真的打到当前前台窗口
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- **会影响用户当前的操作**
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绑定窗口句柄后,应该用 `SendMessage`/`PostMessage` 向目标 HWND 发送消息:
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- `WM_CHAR` — 发送字符,不移动光标
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- `WM_KEYDOWN`/`WM_KEYUP` — 发送按键
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- `WM_LBUTTONDOWN`/`WM_LBUTTONUP` — 发送鼠标点击(窗口客户区相对坐标)
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- `PrintWindow` — 截取窗口内容,不需要窗口在前台
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- **不抢焦点、不影响用户当前操作**
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已验证:向记事本 `SendMessage(WM_CHAR)` 成功写入文字,记事本在后台,终端保持前台。
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### 问题 C:截图是公共能力,不属于 swift
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截图(screenshot)、显示器枚举(display)、应用管理(apps)是所有平台都需要的公共能力,不应该放在 `@ant/computer-use-swift`(macOS 专属包名)里。
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## 2. 修正后的架构
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### 2.1 分层原则
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```
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packages/@ant/ ← macOS 原生模块包装器(不放其他平台代码)
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├── computer-use-input/ ← macOS: enigo .node 键鼠(仅 darwin)
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├── computer-use-swift/ ← macOS: Swift .node 截图/应用(仅 darwin)
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└── computer-use-mcp/ ← 跨平台: MCP server + 工具定义(不改)
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src/utils/computerUse/
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├── platforms/ ← 新增: 跨平台抽象层
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│ ├── types.ts ← 公共接口: InputPlatform, ScreenshotPlatform, AppsPlatform, DisplayPlatform
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│ ├── index.ts ← 平台分发器: 按 process.platform 加载后端
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│ ├── darwin.ts ← macOS: 委托给 @ant/computer-use-{input,swift}
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│ ├── win32.ts ← Windows: SendMessage 输入 + PrintWindow 截图 + EnumWindows + UIA + OCR
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│ └── linux.ts ← Linux: xdotool + scrot + xrandr + wmctrl
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│
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├── win32/ ← Windows 专属增强能力(不在公共接口中)
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│ ├── windowCapture.ts ← PrintWindow 窗口绑定截图
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│ ├── windowEnum.ts ← EnumWindows 窗口枚举
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│ ├── windowMessage.ts ← SendMessage/PostMessage 无焦点输入(新增)
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│ ├── uiAutomation.ts ← IUIAutomation UI 元素操作
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│ └── ocr.ts ← Windows.Media.Ocr 文字识别
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│
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├── executor.ts ← 改: 通过 platforms/ 获取平台实现,不直接调 @ant 包
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├── swiftLoader.ts ← 改: 仅 darwin 使用
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├── inputLoader.ts ← 改: 仅 darwin 使用
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└── ...其他文件不动
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```
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### 2.2 公共接口(`platforms/types.ts`)
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```typescript
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/** 窗口标识 — 跨平台 */
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export interface WindowHandle {
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id: string // macOS: bundleId, Windows: HWND string, Linux: window ID
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pid: number
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title: string
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exePath?: string // Windows/Linux: 进程路径
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}
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/** 输入平台接口 — 两种模式 */
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export interface InputPlatform {
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// 模式 A: 全局输入(macOS/Linux 默认,向前台窗口发送)
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moveMouse(x: number, y: number): Promise<void>
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click(x: number, y: number, button: 'left' | 'right' | 'middle'): Promise<void>
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typeText(text: string): Promise<void>
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key(name: string, action: 'press' | 'release'): Promise<void>
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keys(combo: string[]): Promise<void>
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scroll(amount: number, direction: 'vertical' | 'horizontal'): Promise<void>
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mouseLocation(): Promise<{ x: number; y: number }>
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// 模式 B: 窗口绑定输入(Windows SendMessage,不抢焦点)
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sendChar?(hwnd: string, char: string): Promise<void>
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sendKey?(hwnd: string, vk: number, action: 'down' | 'up'): Promise<void>
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sendClick?(hwnd: string, x: number, y: number, button: 'left' | 'right'): Promise<void>
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sendText?(hwnd: string, text: string): Promise<void>
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}
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/** 截图平台接口 */
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export interface ScreenshotPlatform {
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// 全屏截图
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captureScreen(displayId?: number): Promise<ScreenshotResult>
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// 区域截图
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captureRegion(x: number, y: number, w: number, h: number): Promise<ScreenshotResult>
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// 窗口截图(Windows: PrintWindow,macOS: SCContentFilter,Linux: xdotool+import)
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captureWindow?(hwnd: string): Promise<ScreenshotResult | null>
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}
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/** 显示器平台接口 */
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export interface DisplayPlatform {
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listAll(): DisplayInfo[]
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getSize(displayId?: number): DisplayInfo
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}
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/** 应用管理平台接口 */
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export interface AppsPlatform {
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listRunning(): WindowHandle[]
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listInstalled(): Promise<InstalledApp[]>
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open(name: string): Promise<void>
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getFrontmostApp(): FrontmostAppInfo | null
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findWindowByTitle(title: string): WindowHandle | null
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}
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export interface ScreenshotResult {
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base64: string
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width: number
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height: number
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}
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export interface DisplayInfo {
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width: number
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height: number
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scaleFactor: number
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displayId: number
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}
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export interface InstalledApp {
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id: string // macOS: bundleId, Windows: exe path, Linux: .desktop name
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displayName: string
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path: string
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}
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export interface FrontmostAppInfo {
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id: string
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appName: string
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}
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```
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### 2.3 平台分发器(`platforms/index.ts`)
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```typescript
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import type { InputPlatform, ScreenshotPlatform, DisplayPlatform, AppsPlatform } from './types.js'
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export interface Platform {
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input: InputPlatform
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screenshot: ScreenshotPlatform
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display: DisplayPlatform
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apps: AppsPlatform
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}
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export function loadPlatform(): Platform {
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switch (process.platform) {
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case 'darwin':
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return require('./darwin.js').platform
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case 'win32':
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return require('./win32.js').platform
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case 'linux':
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return require('./linux.js').platform
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default:
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throw new Error(`Computer Use not supported on ${process.platform}`)
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}
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}
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```
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### 2.4 各平台实现
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**`platforms/darwin.ts`** — 委托给 @ant 包(保持兼容):
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```typescript
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// macOS: 通过 @ant/computer-use-input 和 @ant/computer-use-swift
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// 这两个包的 darwin 后端保留不动
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import { requireComputerUseInput } from '../inputLoader.js'
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import { requireComputerUseSwift } from '../swiftLoader.js'
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export const platform = {
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input: { /* 委托给 requireComputerUseInput() */ },
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screenshot: { /* 委托给 requireComputerUseSwift().screenshot */ },
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display: { /* 委托给 requireComputerUseSwift().display */ },
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apps: { /* 委托给 requireComputerUseSwift().apps */ },
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}
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```
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**`platforms/win32.ts`** — 使用 `src/utils/computerUse/win32/` 模块:
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```typescript
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// Windows: SendMessage 输入 + PrintWindow 截图 + EnumWindows 应用
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import { sendChar, sendKey, sendClick, sendText } from '../win32/windowMessage.js'
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import { captureWindow } from '../win32/windowCapture.js'
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import { listWindows } from '../win32/windowEnum.js'
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// ... PowerShell P/Invoke 全局输入作为 fallback
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export const platform = {
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input: {
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// 全局模式: PowerShell SetCursorPos/SendInput(fallback)
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// 窗口模式: SendMessage(首选)
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sendChar, sendKey, sendClick, sendText, // 窗口绑定
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moveMouse, click, typeText, ... // 全局 fallback
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},
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screenshot: {
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captureScreen, // CopyFromScreen
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captureRegion, // CopyFromScreen(rect)
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captureWindow, // PrintWindow(不抢焦点)
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},
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display: { /* Screen.AllScreens */ },
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apps: { /* EnumWindows */ },
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}
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```
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**`platforms/linux.ts`** — 使用 xdotool/scrot:
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```typescript
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// Linux: xdotool + scrot + xrandr + wmctrl
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export const platform = {
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input: { /* xdotool mousemove/click/key/type */ },
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screenshot: { /* scrot */ },
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display: { /* xrandr */ },
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apps: { /* wmctrl + ps */ },
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}
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```
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### 2.5 executor.ts 改造
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```typescript
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// 之前: 直接调 requireComputerUseSwift() 和 requireComputerUseInput()
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// 之后: 通过 platforms/ 统一获取
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import { loadPlatform } from './platforms/index.js'
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const platform = loadPlatform()
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// 截图
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platform.screenshot.captureScreen()
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platform.screenshot.captureWindow(hwnd) // 窗口绑定
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// 输入(窗口绑定模式,不抢焦点)
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platform.input.sendText?.(hwnd, 'Hello')
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platform.input.sendClick?.(hwnd, 100, 200, 'left')
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// 输入(全局模式,fallback)
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platform.input.moveMouse(500, 500)
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platform.input.click(500, 500, 'left')
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```
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## 3. Windows 输入模式对比
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| 方式 | API | 抢焦点 | 移鼠标 | 窗口可最小化 | 适用场景 |
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|------|-----|--------|--------|-------------|---------|
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| **全局输入** | `SetCursorPos` + `SendInput` | ✅ 抢 | ✅ 动 | ❌ 不行 | 需要坐标点击(fallback) |
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| **窗口消息** | `SendMessage(WM_CHAR/WM_KEYDOWN)` | ❌ 不抢 | ❌ 不动 | ✅ 可以 | 打字、按键(首选) |
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| **窗口消息** | `SendMessage(WM_LBUTTONDOWN)` | ❌ 不抢 | ❌ 不动 | ⚠️ 部分 | 窗口内点击 |
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| **窗口截图** | `PrintWindow(hwnd, PW_RENDERFULLCONTENT)` | ❌ 不抢 | ❌ 不动 | ✅ 可以 | 窗口截图 |
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| **UI 操作** | `UIAutomation InvokePattern` | ❌ 不抢 | ❌ 不动 | ✅ 可以 | 按钮点击、文本写入 |
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**策略**:优先用窗口消息 + UIAutomation(不干扰用户),全局输入作为 fallback。
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## 4. 需要新增的文件
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| 文件 | 说明 |
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|------|------|
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| `src/utils/computerUse/platforms/types.ts` | 公共接口定义 |
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| `src/utils/computerUse/platforms/index.ts` | 平台分发器 |
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| `src/utils/computerUse/platforms/darwin.ts` | macOS: 委托给 @ant 包 |
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| `src/utils/computerUse/platforms/win32.ts` | Windows: 组合 win32/ 下各模块 |
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| `src/utils/computerUse/platforms/linux.ts` | Linux: xdotool/scrot |
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| `src/utils/computerUse/win32/windowMessage.ts` | **新增**: SendMessage 无焦点输入 |
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## 5. 需要移除/清理的文件
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| 文件 | 操作 | 原因 |
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|------|------|------|
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| `packages/@ant/computer-use-input/src/backends/win32.ts` | 删除 | Windows 代码不应在 macOS 包里 |
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| `packages/@ant/computer-use-input/src/backends/linux.ts` | 删除 | Linux 代码不应在 macOS 包里 |
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| `packages/@ant/computer-use-swift/src/backends/win32.ts` | 删除 | 同上 |
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| `packages/@ant/computer-use-swift/src/backends/linux.ts` | 删除 | 同上 |
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| `packages/@ant/computer-use-input/src/types.ts` | 删除 | 移到 platforms/types.ts |
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| `packages/@ant/computer-use-swift/src/types.ts` | 删除 | 移到 platforms/types.ts |
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## 6. 需要修改的文件
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| 文件 | 改动 |
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|------|------|
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| `packages/@ant/computer-use-input/src/index.ts` | 恢复为仅 darwin dispatcher(去掉 win32/linux case) |
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| `packages/@ant/computer-use-swift/src/index.ts` | 恢复为仅 darwin dispatcher(去掉 win32/linux case) |
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| `src/utils/computerUse/executor.ts` | 通过 `platforms/` 获取平台实现,不直接调 @ant 包 |
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| `src/utils/computerUse/swiftLoader.ts` | 仅 darwin 加载 |
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| `src/utils/computerUse/inputLoader.ts` | 仅 darwin 加载 |
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## 7. @ant 包的定位(修正后)
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| 包 | 职责 | 平台 |
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|---|------|------|
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| `@ant/computer-use-input` | macOS enigo 键鼠原生模块包装 | **仅 darwin** |
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| `@ant/computer-use-swift` | macOS Swift 截图/应用原生模块包装 | **仅 darwin** |
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| `@ant/computer-use-mcp` | MCP Server + 工具定义 + 调用路由 | **跨平台**(不含平台代码) |
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Windows/Linux 的平台实现全部在 `src/utils/computerUse/platforms/` 和 `src/utils/computerUse/win32/` 中。
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## 8. 执行顺序
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```
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Phase 1: 创建 platforms/ 抽象层
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├── platforms/types.ts(公共接口)
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├── platforms/index.ts(分发器)
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└── platforms/darwin.ts(委托 @ant 包)
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Phase 2: 创建 Windows 平台实现
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├── win32/windowMessage.ts(SendMessage 无焦点输入)
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└── platforms/win32.ts(组合 win32/ 各模块)
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Phase 3: 创建 Linux 平台实现
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└── platforms/linux.ts(xdotool/scrot)
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Phase 4: 改造 executor.ts
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└── 通过 platforms/ 获取实现,不直接调 @ant
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Phase 5: 清理 @ant 包
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├── 删除 @ant/computer-use-input/src/backends/{win32,linux}.ts
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├── 删除 @ant/computer-use-swift/src/backends/{win32,linux}.ts
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└── 恢复 index.ts 为 darwin-only
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Phase 6: 验证 + PR
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```
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Reference in New Issue
Block a user