This method uses jQuery to update a text field.
            If the new_value string ends with the newline character,
            WebDriver will finish the call, which simulates pressing
            {Enter/Return} after the text is entered.

def jquery_update_text_value(self, selector, new_value, by=By.CSS_SELECTOR,
                                 timeout=settings.LARGE_TIMEOUT):
        """ This method uses jQuery to update a text field.
            If the new_value string ends with the newline character,
            WebDriver will finish the call, which simulates pressing
            {Enter/Return} after the text is entered. """
        if self.timeout_multiplier and timeout == settings.LARGE_TIMEOUT:
            timeout = self.__get_new_timeout(timeout)
        if page_utils.is_xpath_selector(selector):
            by = By.XPATH
        element = self.wait_for_element_visible(
            selector, by=by, timeout=timeout)
        self.__demo_mode_highlight_if_active(selector, by)
        self.scroll_to(selector, by=by)
        selector = self.convert_to_css_selector(selector, by=by)
        selector = self.__make_css_match_first_element_only(selector)
        selector = self.__escape_quotes_if_needed(selector)
        new_value = re.escape(new_value)
        new_value = self.__escape_quotes_if_needed(new_value)
        update_text_script = """jQuery('%s').val('%s')""" % (
            selector, new_value)
        self.safe_execute_script(update_text_script)
        if new_value.endswith('\n'):
            element.send_keys('\n')
        self.__demo_mode_pause_if_active()