使用网页驱动程序滚动到元素？

我仍然在学习和回答我的一个问题: 给你，我被告知，这可能是因为在问题的元素不在视图中。

我浏览了文档，所以，这里有一个最相关的答案: 给你

您可以使用“ org.openqa.selenium.Interactive. Actions”类移动到一个元素:

WebElement element = driver.findElement(By.id("my-id"));
Actions actions = new Actions(driver);
actions.moveToElement(element);
## actions.click();
actions.perform();

当我尝试使用上面的方法滚动到元素时: 它说没有定义 WebElement。

我想这是因为我没有导入相关的模块。有人能告诉我该进口什么吗？

编辑: 正如 alexe 指出的，这是 Java 代码。

但同时，在我试图弄明白一段时间之后。我找到了 WebElement 的导入方法:

from selenium.webdriver.remote.webelement import WebElement

也许能帮到像我这样的人。

如何做到这一点也是一个很好的教训，国际海事组织:

转到: < a href = “ http://selenium-python.readthedocs.io/api.html # module-selenium.webdriver.Remote.webelement”rel = “ noReferrer”> Documentation 那个

class selenium.webdriver.remote.webelement.WebElement(parent, id_, w3c=False)

需要分成上面提到的命令形式。

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最佳答案

You are trying to run Java code with Python. In Python/Selenium, the org.openqa.selenium.interactions.Actions are reflected in ActionChains class:

from selenium.webdriver.common.action_chains import ActionChains


element = driver.find_element_by_id("my-id")


actions = ActionChains(driver)
actions.move_to_element(element).perform()

Or, you can also "scroll into view" via scrollIntoView():

driver.execute_script("arguments[0].scrollIntoView();", element)

If you are interested in the differences:

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It's not a direct answer on question (its not about Actions), but it also allow you to scroll easily to required element:

element = driver.find_element_by_id('some_id')
element.location_once_scrolled_into_view

This actually intend to return you coordinates (x, y) of element on page, but also scroll down right to target element

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There is another option to scroll page to required element if element has "id" attribute

If you want to navigate to page and scroll down to element with @id, it can be done automatically by adding #element_id to URL...

Example

Let's say we need to navigate to Selenium Waits documentation and scroll page down to "Implicit Wait" section. We can do

driver.get('https://selenium-python.readthedocs.io/waits.html')

and add code for scrolling...OR use

driver.get('https://selenium-python.readthedocs.io/waits.html#implicit-waits')

to navigate to page AND scroll page automatically to element with id="implicit-waits" (<div class="section" id="implicit-waits">...</div>)

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You can scroll to the element by using javascript through the execute_javascript method. For example here is how I do it using SeleniumLibrary on Robot Framework:

web_element = self.selib.find_element(locator)
self.selib.execute_javascript(
"ARGUMENTS",
web_element,
"JAVASCRIPT",
'arguments[0].scrollIntoView({behavior: "instant", block: "start", inline: "start"});'
)
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In addition to move_to_element() and scrollIntoView() I wanted to pose the following code which attempts to center the element in the view:

desired_y = (element.size['height'] / 2) + element.location['y']
window_h = driver.execute_script('return window.innerHeight')
window_y = driver.execute_script('return window.pageYOffset')
current_y = (window_h / 2) + window_y
scroll_y_by = desired_y - current_y


driver.execute_script("window.scrollBy(0, arguments[0]);", scroll_y_by)
小开

This can be done using driver.execute_script():-

driver.execute_script("document.getElementById('myelementid').scrollIntoView();")
小开

Example:

driver.execute_script("arguments[0].scrollIntoView();", driver.find_element_by_css_selector(.your_css_selector))

This one always works for me for any type of selectors. There is also the Actions class, but for this case, it is not so reliable.


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