Playwright MCP Server

import { SessionManager } from '../session-manager.js'; import { ErrorResponse } from '../errors.js'; export interface ScrollArgs { sessionId: string; target?: 'top' | 'bottom' | 'element'; selector?: string; x?: number; y?: number; smooth?: boolean; } export async function handleScroll( sessionManager: SessionManager, args: any ): Promise<any> { const { sessionId, target = 'bottom', selector, x, y, smooth = true } = args as ScrollArgs; const validation = sessionManager.validateSession(sessionId); if (!validation.valid) { return { content: [{ type: 'text', text: JSON.stringify(validation.error) }], isError: true, }; } const session = sessionManager.getSession(sessionId); if (!session) { return { content: [ { type: 'text', text: JSON.stringify({ errorCode: 'SESSION_NOT_FOUND', message: `Session not found: ${sessionId}`, } as ErrorResponse), }, ], isError: true, }; } try { const result = await session.page.evaluate( ({ target, selector, x, y, smooth }): any => { const behavior = smooth ? 'smooth' : 'auto'; if (target === 'top') { // @ts-ignore window.scrollTo({ top: 0, left: 0, behavior }); return { scrolled: true, target: 'top' }; } else if (target === 'bottom') { // @ts-ignore window.scrollTo({ // @ts-ignore top: document.body.scrollHeight, left: 0, behavior }); return { scrolled: true, target: 'bottom' }; } else if (target === 'element' && selector) { // @ts-ignore const element = document.querySelector(selector); if (!element) { return { error: 'Element not found', selector }; } element.scrollIntoView({ behavior, block: 'center' }); return { scrolled: true, target: 'element', selector }; } else if (x !== undefined || y !== undefined) { // @ts-ignore window.scrollTo({ // @ts-ignore top: y !== undefined ? y : window.scrollY, // @ts-ignore left: x !== undefined ? x : window.scrollX, behavior }); return { scrolled: true, target: 'position', x, y }; } return { error: 'Invalid scroll parameters' }; }, { target, selector, x, y, smooth } ); if (result.error) { return { content: [ { type: 'text', text: JSON.stringify({ errorCode: 'SCROLL_FAILED', message: result.error, details: result, } as ErrorResponse), }, ], isError: true, }; } // Wait a bit for scroll to complete await session.page.waitForTimeout(smooth ? 500 : 100); return { content: [ { type: 'text', text: JSON.stringify(result), }, ], }; } catch (error: any) { return { content: [ { type: 'text', text: JSON.stringify({ errorCode: 'SCROLL_FAILED', message: error.message || 'Failed to scroll', sessionId, } as ErrorResponse), }, ], isError: true, }; } }