How to set browser viewport size

Question

I\'m trying to create a cross-browser Python-Selenium test script. So I need all results to be same no matter which webdriver (Chrome or <

Answer 1

Here is function to set the viewport size:

def set_viewport_size(driver, width, height):
    window_size = driver.execute_script("""
        return [window.outerWidth - window.innerWidth + arguments[0],
          window.outerHeight - window.innerHeight + arguments[1]];
        """, width, height)
    driver.set_window_size(*window_size)

Usage :

from selenium import webdriver

driver = webdriver.Chrome()

# set the viewport size to 800 x 600
set_viewport_size(driver, 800, 600)

# display the viewport size
print driver.execute_script("return [window.innerWidth, window.innerHeight];")