refactor: mv SimulatorMask from ui to page-controller

AGENTS.md

@@ -10,8 +10,8 @@ This is a **monorepo** with npm workspaces:
 Internal packages:
 
 - **LLMs** (`packages/llms/`) - LLM client with reflection-before-action mental model
-- **Page Controller** (`packages/page-controller/`) - DOM operations, independent of LLM
-- **UI** (`packages/ui/`) - Panel, SimulatorMask, i18n. Decoupled from PageAgent
+- **Page Controller** (`packages/page-controller/`) - DOM operations and visual feedback (SimulatorMask), independent of LLM
+- **UI** (`packages/ui/`) - Panel and i18n. Decoupled from PageAgent
 
 ## Development Commands
 
@@ -43,8 +43,8 @@ packages/
 
 - **Page Agent**: Core lib. Imports from `@page-agent/llms`, `@page-agent/page-controller`, `@page-agent/ui`
 - **LLMs**: LLM client with MacroToolInput contract. No dependency on page-agent
-- **UI**: Panel, Mask, i18n. No dependency on page-agent
-- **Page Controller**: Pure DOM operations. No LLM or UI dependency
+- **UI**: Panel and i18n. No dependency on page-agent
+- **Page Controller**: DOM operations with optional visual feedback (SimulatorMask). No LLM dependency. Enable mask via `enableMask: true` config
 
 ### PageController ↔ PageAgent Communication
 
@@ -101,7 +101,8 @@ Query params configure `PageAgentConfig` in `src/umd.ts`.
 
 | File | Description |
 |------|-------------|
-| `src/PageController.ts` | ⭐ Main controller class |
+| `src/PageController.ts` | ⭐ Main controller class with optional mask support |
+| `src/SimulatorMask.ts` | Visual overlay blocking user interaction during automation |
 | `src/actions.ts` | Element interactions (click, input, scroll) |
 | `src/dom/dom_tree/index.js` | Core DOM extraction engine |
 

README-zh.md

@@ -79,8 +79,8 @@ PageAgent adopts a simplified monorepo structure:
 packages/
 ├── page-agent/          # AI agent (npm: page-agent)
 ├── llms/                # LLM 客户端 (npm: @page-agent/llms)
-├── page-controller/     # DOM 操作 (npm: @page-agent/page-controller)
-├── ui/                  # 面板 & 蒙层 & 模拟鼠标 (npm: @page-agent/ui)
+├── page-controller/     # DOM 操作 & 蒙层 & 模拟鼠标 (npm: @page-agent/page-controller)
+├── ui/                  # 面板 & i18n (npm: @page-agent/ui)
 └── website/             # 文档站点
 ```
 

README.md

@@ -79,8 +79,8 @@ PageAgent adopts a simplified monorepo structure:
 packages/
 ├── page-agent/          # AI agent (npm: page-agent)
 ├── llms/                # LLM client (npm: @page-agent/llms)
-├── page-controller/     # DOM operations (npm: @page-agent/page-controller)
-├── ui/                  # Panel & Mask & Mouse Animation (npm: @page-agent/ui)
+├── page-controller/     # DOM operations & Visual Mask (npm: @page-agent/page-controller)
+├── ui/                  # Panel & i18n (npm: @page-agent/ui)
 └── website/             # Demo & Documentation site
 ```
 

packages/page-agent/src/PageAgent.ts

@@ -4,7 +4,7 @@
  */
 import { LLM, type Tool } from '@page-agent/llms'
 import { PageController } from '@page-agent/page-controller'
-import { Panel, SimulatorMask } from '@page-agent/ui'
+import { Panel } from '@page-agent/ui'
 import chalk from 'chalk'
 import zod from 'zod'
 
@@ -92,8 +92,6 @@ export class PageAgent extends EventTarget {
 	/** PageController for DOM operations */
 	pageController: PageController
 
-	/** Fullscreen mask */
-	mask = new SimulatorMask()
 	/** History records */
 	history: AgentHistory[] = []
 
@@ -114,8 +112,11 @@ export class PageAgent extends EventTarget {
 		})
 		this.tools = new Map(tools)
 
-		// Initialize PageController with config
-		this.pageController = new PageController(this.config)
+		// Initialize PageController with config (mask enabled by default)
+		this.pageController = new PageController({
+			...this.config,
+			enableMask: this.config.enableMask ?? true,
+		})
 
 		// Listen to LLM events
 		this.#llmRetryListener = (e) => {
@@ -162,7 +163,7 @@ export class PageAgent extends EventTarget {
 		await onBeforeTask.call(this)
 
 		// Show mask and panel
-		this.mask.show()
+		this.pageController.showMask()
 
 		this.panel.show()
 		this.panel.reset()
@@ -485,7 +486,7 @@ export class PageAgent extends EventTarget {
 		// Task completed
 		this.panel.update({ type: 'completed' })
 
-		this.mask.hide()
+		this.pageController.hideMask()
 
 		this.#abortController.abort()
 	}
@@ -496,9 +497,7 @@ export class PageAgent extends EventTarget {
 		const pi = await this.pageController.getPageInfo()
 		const viewportExpansion = await this.pageController.getViewportExpansion()
 
-		this.mask.wrapper.style.pointerEvents = 'none'
 		await this.pageController.updateTree()
-		this.mask.wrapper.style.pointerEvents = 'auto'
 
 		let simplifiedHTML = await this.pageController.getSimplifiedHTML()
 
@@ -545,7 +544,6 @@ export class PageAgent extends EventTarget {
 		this.disposed = true
 		this.pageController.dispose()
 		this.panel.dispose()
-		this.mask.dispose()
 		this.history = []
 		this.#abortController.abort(reason ?? 'PageAgent disposed')
 

packages/page-controller/package.json

@@ -34,5 +34,8 @@
 		"build": "vite build",
 		"prepublishOnly": "node -e \"const fs=require('fs');['LICENSE'].forEach(f=>fs.copyFileSync('../../'+f,f))\"",
 		"postpublish": "node -e \"['LICENSE'].forEach(f=>{try{require('fs').unlinkSync(f)}catch{}})\""
+	},
+	"dependencies": {
+		"ai-motion": "^0.4.8"
 	}
 }

packages/page-controller/src/PageController.ts

@@ -6,6 +6,7 @@
  * Designed to be independent of LLM and can be tested in unit tests.
  * All public methods are async for potential remote calling support.
  */
+import { SimulatorMask } from './SimulatorMask'
 import {
 	clickElement,
 	getElementByIndex,
@@ -20,11 +21,15 @@ import type { FlatDomTree, InteractiveElementDomNode } from './dom/dom_tree/type
 import { getPageInfo } from './dom/getPageInfo'
 import { patchReact } from './patches/react'
 
+export { SimulatorMask }
+
 /**
  * Configuration for PageController
  */
 export interface PageControllerConfig extends dom.DomConfig {
 	viewportExpansion?: number
+	/** Enable visual mask overlay during operations (default: false) */
+	enableMask?: boolean
 }
 
 interface ActionResult {
@@ -64,12 +69,19 @@ export class PageController extends EventTarget {
 	/** last time the tree was updated */
 	private lastTimeUpdate = 0
 
+	/** Visual mask overlay for blocking user interaction during automation */
+	private mask: SimulatorMask | null = null
+
 	constructor(config: PageControllerConfig = {}) {
 		super()
 
 		this.config = config
 
 		patchReact(this)
+
+		if (config.enableMask) {
+			this.mask = new SimulatorMask()
+		}
 	}
 
 	// ======= State Queries =======
@@ -136,12 +148,18 @@ export class PageController extends EventTarget {
 	/**
 	 * Update DOM tree, returns simplified HTML for LLM.
 	 * This is the main method to refresh the page state.
+	 * Automatically bypasses mask during DOM extraction if enabled.
 	 */
 	async updateTree(): Promise<string> {
 		this.dispatchEvent(new Event('beforeUpdate'))
 
 		this.lastTimeUpdate = Date.now()
 
+		// Temporarily bypass mask to allow DOM extraction
+		if (this.mask) {
+			this.mask.wrapper.style.pointerEvents = 'none'
+		}
+
 		dom.cleanUpHighlights()
 
 		const blacklist = [
@@ -162,6 +180,11 @@ export class PageController extends EventTarget {
 		this.elementTextMap.clear()
 		this.elementTextMap = dom.getElementTextMap(this.simplifiedHTML)
 
+		// Restore mask blocking
+		if (this.mask) {
+			this.mask.wrapper.style.pointerEvents = 'auto'
+		}
+
 		this.dispatchEvent(new Event('afterUpdate'))
 
 		return this.simplifiedHTML
@@ -326,6 +349,24 @@ export class PageController extends EventTarget {
 		}
 	}
 
+	// ======= Mask Operations =======
+
+	/**
+	 * Show the visual mask overlay.
+	 * Only works if enableMask was set to true in config.
+	 */
+	showMask(): void {
+		this.mask?.show()
+	}
+
+	/**
+	 * Hide the visual mask overlay.
+	 * Only works if enableMask was set to true in config.
+	 */
+	hideMask(): void {
+		this.mask?.hide()
+	}
+
 	/**
 	 * Dispose and clean up resources
 	 */
@@ -335,5 +376,7 @@ export class PageController extends EventTarget {
 		this.selectorMap.clear()
 		this.elementTextMap.clear()
 		this.simplifiedHTML = '<EMPTY>'
+		this.mask?.dispose()
+		this.mask = null
 	}
 }

packages/page-controller/src/env.d.ts

@@ -0,0 +1,6 @@
+/// <reference types="vite/client" />
+
+declare module '*.module.css' {
+	const classes: Record<string, string>
+	export default classes
+}

packages/page-controller/vite.config.js

@@ -29,7 +29,7 @@ export default defineConfig({
 		},
 		outDir: resolve(__dirname, 'dist', 'lib'),
 		rollupOptions: {
-			external: ['@page-agent/*'],
+			external: ['@page-agent/*', 'ai-motion'],
 		},
 		minify: false,
 		sourcemap: true,

packages/ui/package.json

@@ -15,7 +15,7 @@
 	"files": [
 		"dist/"
 	],
-	"description": "UI components for page-agent - Panel, SimulatorMask, and i18n",
+	"description": "UI components for page-agent - Panel and i18n",
 	"keywords": [
 		"page-agent",
 		"ui",
@@ -34,8 +34,5 @@
 		"build": "vite build",
 		"prepublishOnly": "node -e \"const fs=require('fs');['LICENSE'].forEach(f=>fs.copyFileSync('../../'+f,f))\"",
 		"postpublish": "node -e \"['LICENSE'].forEach(f=>{try{require('fs').unlinkSync(f)}catch{}})\""
-	},
-	"dependencies": {
-		"ai-motion": "^0.4.8"
 	}
 }

packages/ui/src/index.ts

@@ -1,4 +1,3 @@
 export { Panel, type PanelConfig, type PanelUpdate } from './Panel'
-export { SimulatorMask } from './SimulatorMask'
 export { UIState, type Step, type AgentStatus } from './UIState'
 export { I18n, type SupportedLanguage, type TranslationKey } from './i18n'

packages/ui/vite.config.js

@@ -29,7 +29,7 @@ export default defineConfig({
 		},
 		outDir: resolve(__dirname, 'dist', 'lib'),
 		rollupOptions: {
-			external: ['ai-motion'],
+			external: [],
 		},
 		minify: false,
 		sourcemap: true,

packages/website/src/pages/docs/integration/configuration/page.tsx

@@ -121,6 +121,13 @@ export default function Configuration() {
 
   /** Viewport expansion in pixels (-1 for full page) */
   viewportExpansion?: number
+
+  /**
+   * Enable visual mask overlay during automation.
+   * Blocks user interaction while agent is running.
+   * Default: false for PageController, true for PageAgent.
+   */
+  enableMask?: boolean
 }`}
 				/>
 			</section>