import ru.yandex.qatools.htmlelements.element.HtmlElement; //导入依赖的package包/类
/**
 * Checks for visibility of Fields with the {@link Visible} annotation.
 * Will recurse inside {@link HtmlElement}s
 *
 * @param pageObject  the pageObject
 * @param field       wait for visibility of the field
 * @param checkAtMost maximum number of elements to check in a List
 */
@SuppressWarnings("unchecked")
private void waitForFieldToBeVisible(Object pageObject, Field field, int checkAtMost) {

    Object objectFromField = getObjectFromField(pageObject, field);
    applyToWebElements(
            field,
            objectFromField,
            we -> wait.until(visibilityOf(we)),
            list -> wait.until(visibilityOfAllElements(
                    list.stream()
                            .limit(checkAtMost == -1 ? list.size() : checkAtMost)
                            .collect(Collectors.toList()))));

    // recurse inside HtmlElements
    if (isHtmlElementList(field)) {
        ((List<HtmlElement>) objectFromField)
                .forEach(this::waitForAnnotatedElementVisibility);
    } else if (isHtmlElement(field)) {
        waitForAnnotatedElementVisibility(objectFromField);
    }
}
 

import ru.yandex.qatools.htmlelements.element.HtmlElement; //导入依赖的package包/类
/**
 * Extracts all fields from a class (page object) and its super classes.
 * This then behaves as expected if a page object extends something which
 * itself extends HtmlElement or BasePage.
 */
private List<Field> getDeclaredFieldsIncludingSuperClasses(Class<?> clazz) {
    final List<Field> fields = new ArrayList<>();

    for (Class<?> c = clazz;
            ((c != null) && (c != BasePage.class) && (c != HtmlElement.class));
            c = c.getSuperclass()) {
        fields.addAll(Arrays.asList(c.getDeclaredFields()));
    }
    return fields;
}