How to Maximize a Browser window using Playwright Java

 

Playwright itself does not have a direct maximize () method like some other browser automation tools, but you can achieve the effect by setting the viewport to the screen size of your display.

Below are ways to handle Maximize a browser in Playwright Java 

• Ø  Setting the viewport to the screen size 

o   setViewportSize(1920, 1080): This sets the browser window to a full HD resolution, effectively maximizing it.

o   setHeadless(false): Ensures the browser runs in a visible mode so you can see the window being maximized.

 Code Snapshot 

Playwright playwright = Playwright.create()  ;
 Browser browser = playwright.chromium().launch(new BrowserType.LaunchOptions().setHeadless(false));  
 // Create a new browser context
 BrowserContext context = browser.newContext(new Browser.NewContextOptions()
         .setViewportSize(1920, 1080));   

 

• Ø  Passing as Argument “—start-maximized” the viewport to the screen size should null

                 Use setArg as “—start-maximized” at browser level and

                     setViewportSize(null) into browser content level

                 Code Snapshot 

                   Page page2 =Playwright.create().chromium().launch(new                                 BrowserType.LaunchOptions().setHeadless(false)

                .setArgs(List.of("--start-maximized")))

                .newContext(new Browser.NewContextOptions().setViewportSize(null))

                .newPage();

Below Example code 

package com.example;
 import java.util.List;

import com.microsoft.playwright.*;

public class BrowserMaximizeTest {
    public static void main(String[] args) {
       Playwright playwright = Playwright.create()  ;
        Browser browser = playwright.chromium().launch(new BrowserType.LaunchOptions().setHeadless(false));
        //********************************************Set View Port Size **************************
        // Create a new browser context
        BrowserContext context = browser.newContext(new Browser.NewContextOptions()
                .setViewportSize(1920, 1080)); // Set the viewport to a large resolution (e.g., full HD)
        // Open a new page
        Page page = context.newPage();
        // Navigate to a URL
        page.navigate("https://opensource-demo.orangehrmlive.com/web/index.php/auth/login");
        // Additional code to interact with the page if needed
        // Close the browser after use
        browser.close();
        //******************************************** End Set View Port Size **************************
        
       // ****************************** serArgs as --start-maximize parameter and setviewprotsize is null **********************
        Page page2 =Playwright.create().chromium().launch(new BrowserType.LaunchOptions().setHeadless(false)
                .setArgs(List.of("--start-maximized")))
                .newContext(new Browser.NewContextOptions().setViewportSize(null))
                .newPage();
        page2.navigate("https://opensource-demo.orangehrmlive.com/web/index.php/auth/login");
        page2.close();

    }
}