<p>每个人都可能想到另一种方法来访问<code>chrome://settings</code>,然后使用selenium进行设置,我这样做只是为了启发好奇心,但是当你遇到超过3个结合了动态内容的影子根元素时,很明显这是一种混淆并使其无法自动化的方法,<strong>尽管听起来至少理论上可能这种方法看起来更像是一个死胡同,我将用示例代码来回答这个问题,只是为了纯粹的学习目的,以宣传那些想参加挑战的人。</strong>。由于阴影根和动态更改,不仅很难找到内容设置,当您发现按钮此时不可单击。</p>
<pre><code>driver = webdriver.Chrome()
def expand_shadow_element(element):
shadow_root = driver.execute_script('return arguments[0].shadowRoot', element)
return shadow_root
driver.get("chrome://settings")
root1 = driver.find_element_by_tag_name('settings-ui')
shadow_root1 = expand_shadow_element(root1)
root2 = shadow_root1.find_element_by_css_selector('[page-name="Settings"]')
shadow_root2 = expand_shadow_element(root2)
root3 = shadow_root2.find_element_by_id('search')
shadow_root3 = expand_shadow_element(root3)
search_button = shadow_root3.find_element_by_id("searchTerm")
search_button.click()
text_area = shadow_root3.find_element_by_id('searchInput')
text_area.send_keys("content settings")
root0 = shadow_root1.find_element_by_id('main')
shadow_root0_s = expand_shadow_element(root0)
root1_p = shadow_root0_s.find_element_by_css_selector('settings-basic-page')
shadow_root1_p = expand_shadow_element(root1_p)
root1_s = shadow_root1_p.find_element_by_css_selector('settings-privacy-page')
shadow_root1_s = expand_shadow_element(root1_s)
content_settings_div = shadow_root1_s.find_element_by_css_selector('#site-settings-subpage-trigger')
content_settings = content_settings_div.find_element_by_css_selector("button")
content_settings.click()
</code></pre>