python - 如何在Python中使用Selenium执行右键单击？

Question

我想知道是否有人有解决方案如何在 DOM 的任何元素上执行简单的右键单击操作。例如，右键单击“Google 搜索”按钮以选择“页面另存为”选项。根据我的研究，它涉及到 ActionChains。我的代码大致如下:

from selenium import webdriver
from selenium.webdriver.support.ui import Select
from selenium.webdriver import ActionChains

br = webdriver.Firefox()
br.get('http://www.google.com')
btn=br.find_element_by_id('qbqfba')
actionChains = ActionChains(br)

actionChains.context_click(btn).perform()

出现以下错误:

  File "/usr/local/lib/python2.7/dist-packages/selenium-2.39.0-py2.7.egg/seleniu
m/webdriver/remote/errorhandler.py", line 164, in check_response
    raise exception_class(message, screen, stacktrace)
MoveTargetOutOfBoundsException: Message: u'Offset within element cannot be scrol
led into view: (50, 14.5): [object XrayWrapper [object HTMLButtonElement]]' ; St
acktrace: 
    at FirefoxDriver.prototype.mouseMove (file:///tmp/tmpuIgKVI/extensions/fxdri
ver@googlecode.com/components/driver_component.js:9176)
    at DelayedCommand.prototype.executeInternal_/h (file:///tmp/tmpuIgKVI/extens
ions/fxdriver@googlecode.com/components/command_processor.js:10831)
    at DelayedCommand.prototype.executeInternal_ (file:///tmp/tmpuIgKVI/extensio
ns/fxdriver@googlecode.com/components/command_processor.js:10836)
    at DelayedCommand.prototype.execute/< (file:///tmp/tmpuIgKVI/extensions/fxdr
iver@googlecode.com/components/command_processor.js:10778)

我哪里出错了？附注我的测试环境是Ubuntu 12.04，以防万一也无所谓。

Answer 1

Google 搜索按钮的 id 属性是 gbqfba，而不是 qbqfba(如果您看到我看到的同一个谷歌搜索页面):

btn = br.find_element_by_id('gbqfba')
#                            ^

或者您可以通过文本查找按钮:

br.find_element_by_xpath('.//button[contains(., "Google Search")]')