_element.py 文件源码

def mouse_down(self, locator):
        """Simulates pressing the left mouse button on the element specified by `locator`.

        The element is pressed without releasing the mouse button.

        Key attributes for arbitrary elements are `id` and `name`. See
        `introduction` for details about locating elements.

        See also the more specific keywords `Mouse Down On Image` and
        `Mouse Down On Link`.
        """
        self._info("Simulating Mouse Down on element '%s'" % locator)
        element = self._element_find(locator, True, False)
        if element is None:
            raise AssertionError("ERROR: Element %s not found." % (locator))
        ActionChains(self._current_browser()).click_and_hold(element).perform()