python 使用headless chrome滚动截图

from selenium import webdriver
from selenium.webdriver.chrome.options import Options
import util
chrome_options = Options()
#chrome_options.add_argument('--headless')
chrome_options.add_argument('--disable-gpu')
chrome_options.add_argument('--disable-infobars')

chrome_options.binary_location = r"C:\Program Files (x86)\Google\Chrome\Application\chrome.exe"
driver=webdriver.Chrome(chrome_options=chrome_options)
driver.get("http://www.mizuhobank.co.jp/sp/loan/card/index.html")
#driver.execute_script("window.scrollTo(0, document.body.scrollHeight);")
util.fullpage_screenshot(driver, "3.png")
driver.close()
driver.quit()

　　

util.py

import os
import time

from PIL import Image

def fullpage_screenshot(driver, file):

        print("Starting chrome full page screenshot workaround ...")

        total_width = driver.execute_script("return document.body.offsetWidth")
        total_height = driver.execute_script("return document.body.parentNode.scrollHeight")
        viewport_width = driver.execute_script("return document.body.clientWidth")
        viewport_height = driver.execute_script("return window.innerHeight")
        print("Total: ({0}, {1}), Viewport: ({2},{3})".format(total_width, total_height,viewport_width,viewport_height))
        rectangles = []

        i = 0
        while i < total_height:
            ii = 0
            top_height = i + viewport_height

            if top_height > total_height:
                top_height = total_height

            while ii < total_width:
                top_width = ii + viewport_width

                if top_width > total_width:
                    top_width = total_width

                print("Appending rectangle ({0},{1},{2},{3})".format(ii, i, top_width, top_height))
                rectangles.append((ii, i, top_width,top_height))

                ii = ii + viewport_width

            i = i + viewport_height

        stitched_image = Image.new('RGB', (total_width, total_height))
        previous = None
        part = 0

        for rectangle in rectangles:
            if not previous is None:
                driver.execute_script("window.scrollTo({0}, {1})".format(rectangle[0], rectangle[1]))
                print("Scrolled To ({0},{1})".format(rectangle[0], rectangle[1]))
                time.sleep(0.2)

            file_name = "part_{0}.png".format(part)
            print("Capturing {0} ...".format(file_name))

            driver.get_screenshot_as_file(file_name)
            screenshot = Image.open(file_name)

            if rectangle[1] + viewport_height > total_height:
                offset = (rectangle[0], total_height - viewport_height)
            else:
                offset = (rectangle[0], rectangle[1])

            print("Adding to stitched image with offset ({0}, {1})".format(offset[0],offset[1]))
            stitched_image.paste(screenshot, offset)

            del screenshot
            os.remove(file_name)
            part = part + 1
            previous = rectangle

        stitched_image.save(file)
        print("Finishing chrome full page screenshot workaround...")
        return True