Upgrading instructions for Playwright engine

Playwright Automation Engine Support

New Feature | Major Update | Recommended

📋 Feature Overview

This update adds Playwright engine support to MBBrowser's automation script functionality, forming three major automation solutions together with existing Puppeteer and Selenium engines, providing users with more powerful and modern browser automation capabilities.

✅ Update Highlights: Supports JavaScript, Python, and Java languages, automatic environment configuration, zero-configuration usage!

✨ Core Features

1. Comprehensive Language Support

Language	Engine Type	Runtime Environment	Features
JavaScript	Playwright	Node.js	Native support, optimal performance
Python	Playwright	Virtual Environment	Automatic virtual environment activation, environment isolation
Java	Playwright	JDK + Node.js	Automatic driver extraction, automated configuration

2. Intelligent Environment Management

Python Virtual Environment

bash

# Auto-generated startup script
call Playwright\Scripts\activate
Playwright\Scripts\python.exe "script_path"

✅ Automatic virtual environment activation
✅ Environment isolation, avoiding conflicts

Java Driver Auto-extraction

bash

# Auto-extraction on first run
if not exist package\cli.js (
  jar xf lib\driver-bundle.jar
  move driver\win32_x64\package package
)

✅ Smart detection
✅ Automatic extraction and configuration

Independent Bat File Management

Python non-debug mode:
Each script generates an independent bat file (named with SESSION_UNIQUE_ID)

✅ Avoid concurrent conflicts
✅ Automatic cleanup mechanism

3. Unified CDP Connection Method

All languages connect to the launched Chrome instance via Chrome DevTools Protocol (CDP):

javascript

// JavaScript
const browser = await chromium.connectOverCDP(ws_endpoint);

python

# Python
browser = p.chromium.connect_over_cdp(ws_endpoint)

java

// Java
Browser browser = playwright.chromium().connectOverCDP(ws_endpoint);

🆚 Three Engine Comparison

Feature	Puppeteer	Selenium	Playwright (New)
Language Support	JS only	JS/Python/Java	JS/Python/Java
Connection Method	WebSocket	WebDriver	CDP (Faster)
API Modernization	⭐⭐⭐	⭐⭐	⭐⭐⭐⭐⭐
Cross-browser	Chrome only	Multiple browsers	Chrome/Firefox/Safari
Auto-wait	Manual required	Limited support	Smart auto-wait
Network Interception	Supported	Not supported	Strong support
Multi-tab	Supported	Supported	Native excellent support
Community Activity	High	High	Very High (Microsoft maintained)

🔧 Technical Implementation Highlights

1. Intelligent Script Identification System

cpp

std::string g_sScriptFlag[3][3] = {
    {"std_mbscript_pup_js", "", ""},              // Puppeteer
    {"", "std_mbscript_sele_py", "std_mbscript_sele_jv"},  // Selenium
    {"std_mbscript_play_js", "std_mbscript_play_py", "std_mbscript_play_jv"}  // Playwright
};

✅ Automatically identifies script types through identifiers, ensuring correct runtime environment

2. Independent Bat File Management

Python Script Non-debug Mode:
Each script generates an independent bat file (named with SESSION_UNIQUE_ID)
Avoids multi-script concurrent conflicts
Automatic cleanup mechanism

Java Script Playwright Type:
Automatically detects and extracts drivers
Sets Node.js path
Intelligent error handling and prompts

3. Automatic Port and Key Replacement

Automatically replaces connection information in scripts at runtime:

javascript

// JavaScript & Python Playwright
size_t posStart = sJs.find("ws://localhost");
sJs.replace(sJs.begin() + posStart, sJs.begin() + posEnd, 
           pItem->sChromeKey.c_str());

java

// Java Playwright
size_t posStart = sJs.find("String ws_endpoint = \"");
sJs.replace(sJs.begin() + posStart, sJs.begin() + posEnd, 
           pItem->sChromeKey.c_str());

📝 Standard Script Templates

JavaScript Playwright Template

javascript

const { chromium } = require('playwright');
const ws_endpoint = 'ws://localhost:9223/...';  // Auto-replaced

const browser = await chromium.connectOverCDP(ws_endpoint);
// Get existing page or create new page
// Execute automation operations...

Python Playwright Template

python

from playwright.sync_api import sync_playwright
ws_endpoint = "ws://localhost:9234/..."  # Auto-replaced

with sync_playwright() as p:
    browser = p.chromium.connect_over_cdp(ws_endpoint)
    # Automation operations...

Java Playwright Template

java

import com.microsoft.playwright.*;

System.setProperty("playwright.skip.browser.download", "1");
Playwright playwright = Playwright.create(...);
Browser browser = playwright.chromium().connectOverCDP(ws_endpoint);
// Automation operations...

🚀 User Experience Enhancement

Zero-Configuration Startup

User only needs to select "Playwright" engine
Select language (JS/Python/Java)
Write script, run with one click
All environment configuration completed automatically

Environment Isolation

✅ Python uses independent virtual environment (Playwright directory)
✅ Java driver auto-extraction, no system pollution
✅ JavaScript uses project-level node_modules

Intelligent Error Handling

✅ Missing driver? Auto-extract
✅ Node.js not found? Auto-configure PATH
✅ Detailed error logs and prompts

📊 Performance Comparison

Metric	Selenium	Puppeteer	Playwright
Startup Speed	2-3 seconds	1-2 seconds	1-2 seconds
Operation Response	Slower	Fast	Fastest
Stability	⭐⭐⭐	⭐⭐⭐⭐	⭐⭐⭐⭐⭐
Resource Usage	Medium	Low	Low

📦 System Requirements

Basic Environment

Node.js (Existing, shared with Puppeteer)
Python Virtual Environment (New: python\Playwright)
JDK (Existing, shared with Selenium)

New Dependency Packages

Python

bash

# In virtual environment
pip install playwright

Java

lib/
  ├── playwright-1.48.0.jar
  ├── driver-bundle-1.48.0.jar
  ├── driver-1.48.0.jar
  └── gson-2.x.jar (and other dependencies)

JavaScript

bash

npm install playwright

🎯 Use Cases

Playwright Advantage Scenarios

Modern Web Applications

SPA application auto-waiting
Complex interaction support
Better asynchronous handling

Multi-tab Operations

Native multi-tab management
Context isolation
Concurrent operation optimization

Network Layer Control

Request/response interception and modification
API testing
Performance analysis

Cross-browser Testing

Same code for multiple browsers
Compatibility guarantee
Unified API

🔄 Migration Guide

From Selenium to Playwright

Selenium Python:

python

from selenium import webdriver
driver = webdriver.Chrome(...)
driver.get('https://example.com')

Playwright Python:

python

from playwright.sync_api import sync_playwright

with sync_playwright() as p:
    browser = p.chromium.connect_over_cdp(ws_endpoint)
    page = browser.contexts[0].pages[0]
    page.goto('https://example.com')

From Puppeteer to Playwright

Puppeteer:

javascript

const puppeteer = require('puppeteer-core');
const browser = await puppeteer.connect({...});

Playwright:

javascript

const { chromium } = require('playwright');
const browser = await chromium.connectOverCDP(ws_endpoint);

💡 Upgrade Recommendations

✅ Scenarios Suitable for Playwright

Need modern API and better asynchronous support
Need network layer control (intercept/modify requests)
Need multi-tab/multi-context management
Need cross-browser testing
Need more stable automation scripts

⚡ Scenarios to Continue Using Selenium

Existing large Selenium script base, high migration cost
Need mobile browser support (Appium)
Team more familiar with Selenium ecosystem

⚡ Scenarios to Continue Using Puppeteer

Only need Chrome/Chromium support
Simple scripts, no complex functionality needed
Pursuit of minimal dependencies

🏗️ Technical Architecture

MBBrowser
    ↓
CScriptManager
    ↓
┌───────────┬───────────┬────────────┐
│ Puppeteer │ Selenium  │ Playwright │
│  JS only  │ JS/Py/Java│ JS/Py/Java│
└───────────┴───────────┴────────────┘
    ↓
Chrome DevTools Protocol (CDP)
    ↓
Chrome 140 Instance

🎉 Summary

✅ This update brings to MBBrowser:
✅ Enhanced Functionality: Added third automation engine option
✅ Better Development Experience: More modern API, less boilerplate code
✅ Improved Stability: Microsoft official maintenance, long-term support guarantee
✅ Flexibility: Three languages, meeting different developer needs
✅ Intelligence: Automatic environment configuration, zero-configuration usage
Playwright's addition makes MBBrowser more competitive in the browser automation field! 🚀

⚡ Quick Start

Step 1: Select Engine

In the automation script management interface, select "Playwright" engine type

Step 2: Select Language

Choose according to needs: JavaScript, Python, or Java

Step 3: Write Script

System automatically generates standard templates for the selected language, including Chrome connection code

Step 4: Run with One Click

Click run, system automatically:

Detects and configures runtime environment
Replaces connection endpoint and key
Activates necessary virtual environment (Python)
Extracts drivers (Java)
Executes script and connects to Chrome instance

⚠️ Important Notes:
Using Java language requires installing corresponding language environment packages. You can download Java environment packages by creating a new script window, selecting Playwright script, and clicking Java language download
When using Playwright scripts with Python, if you need to install other components, please first execute "Playwright\Scripts\activate" and then call pip for installation
When running the script, it is recommended to first set the client to run in standalone mode

Version Update Date: December 2025
Technical Support: Playwright 1.48.0 | Selenium 4.25.0 | Puppeteer Latest

Upgrading instructions for Playwright engine ​

Playwright Automation Engine Support ​

📋 Feature Overview ​

✨ Core Features ​

1. Comprehensive Language Support ​

2. Intelligent Environment Management ​

Python Virtual Environment ​

Java Driver Auto-extraction ​

Independent Bat File Management ​

3. Unified CDP Connection Method ​

🆚 Three Engine Comparison ​

🔧 Technical Implementation Highlights ​

1. Intelligent Script Identification System ​

2. Independent Bat File Management ​

3. Automatic Port and Key Replacement ​

📝 Standard Script Templates ​

JavaScript Playwright Template ​

Python Playwright Template ​

Java Playwright Template ​

🚀 User Experience Enhancement ​

Zero-Configuration Startup ​

Environment Isolation ​

Intelligent Error Handling ​

📊 Performance Comparison ​

📦 System Requirements ​

Basic Environment ​

New Dependency Packages ​

Python ​

Java ​

JavaScript ​

🎯 Use Cases ​

Playwright Advantage Scenarios ​

Modern Web Applications ​

Multi-tab Operations ​

Network Layer Control ​

Cross-browser Testing ​

🔄 Migration Guide ​

From Selenium to Playwright ​

From Puppeteer to Playwright ​

💡 Upgrade Recommendations ​

✅ Scenarios Suitable for Playwright ​

⚡ Scenarios to Continue Using Selenium ​

⚡ Scenarios to Continue Using Puppeteer ​

🏗️ Technical Architecture ​

🎉 Summary ​

⚡ Quick Start ​

Step 1: Select Engine ​

Step 2: Select Language ​

Step 3: Write Script ​

Step 4: Run with One Click ​

Upgrading instructions for Playwright engine

Playwright Automation Engine Support

📋 Feature Overview

✨ Core Features

1. Comprehensive Language Support

2. Intelligent Environment Management

Python Virtual Environment

Java Driver Auto-extraction

Independent Bat File Management

3. Unified CDP Connection Method

🆚 Three Engine Comparison

🔧 Technical Implementation Highlights

1. Intelligent Script Identification System

2. Independent Bat File Management

3. Automatic Port and Key Replacement

📝 Standard Script Templates

JavaScript Playwright Template

Python Playwright Template

Java Playwright Template

🚀 User Experience Enhancement

Zero-Configuration Startup

Environment Isolation

Intelligent Error Handling

📊 Performance Comparison

📦 System Requirements

Basic Environment

New Dependency Packages

Python

Java

JavaScript

🎯 Use Cases

Playwright Advantage Scenarios

Modern Web Applications

Multi-tab Operations

Network Layer Control

Cross-browser Testing

🔄 Migration Guide

From Selenium to Playwright

From Puppeteer to Playwright

💡 Upgrade Recommendations

✅ Scenarios Suitable for Playwright

⚡ Scenarios to Continue Using Selenium

⚡ Scenarios to Continue Using Puppeteer

🏗️ Technical Architecture

🎉 Summary

⚡ Quick Start

Step 1: Select Engine

Step 2: Select Language

Step 3: Write Script

Step 4: Run with One Click