def read_console_log(self, timeout=None):
'''读取一条console.log输出的日志
:param timeout: 读取日志的超时时间，为None表示不会超时
:type timeout: int
'''
time0 = time.time()
while timeout == None or time.time() - time0 < timeout:
result = self._webdriver.read_console_log(self._locator)
if result: return result
time.sleep(0.1)
else:
raise TimeoutError('Read console log timeout')
def wait_for_text(self, text, timeout=10, interval=0.5):
'''暂停程序执行，直到当前元素的InnerText变为特定值
:param text: 要等待的特定值
:type text: string
:param timeout: 超时时间
:type timeout: int或float
:param interval:重试间隔时间
:type interval: int或float
'''
time0 = time.time()
while time.time() - time0 < timeout:
if self.inner_text == text: return
time.sleep(interval)
raise TimeoutError('等待控件文本超时：期望值："%s"，当前值："%s"' %
(text, self.inner_text))
def wait_for_attribute(self, name, value, timeout=10, interval=0.5):
'''暂停程序执行，直到当前元素的指定属性变为特定值
:param name: 要等待的属性名
:type name: string
:param value: 要等待的属性值
:type value: string
:param timeout:超时时间
:type timeout: int或float
:param interval:重试间隔时间
:type interval:int或float
'''
time0 = time.time()
while time.time() - time0 < timeout:
real_value = self.attributes[name]
real_value = real_value.replace('"', '')
if real_value == value: return
time.sleep(interval)
raise TimeoutError('等待控件属性%s超时：期望值："%s"，当前值："%s"' %
(name, value, self.inner_text))
def _pre_click(self, x_offset=None, y_offset=None, highlight=True):
'''点击前的处理
'''
# 等待控件可见
timeout = 5
time0 = time.time()
while time.time() - time0 < timeout:
if self.displayed:
break
time.sleep(0.1)
else:
raise TimeoutError('控件：%s 在%d秒内不可见' % (self, timeout))
self._webdriver.scroll_to_visible(self._locators)
rect = self.rect
time0 = time.time()
while time.time() - time0 < 2:
time.sleep(0.2) # 等待元素位置发生变化
new_rect = self.rect
if new_rect != rect:
break
self._webdriver.scroll_to_visible(self._locators) # 避免某些情况下滑动失败
if highlight:
self.highlight()
rect = self.rect # 此时坐标可能发生变化，需要重新获取
outer_rect = self._webview.visible_rect
# 换算成以WebView左上角为原点的坐标
outer_rect = [0, 0, outer_rect[2], outer_rect[3]]
# 计算交集，避免计算出的坐标为窗口外面
left = max(rect[0], outer_rect[0])
top = max(rect[1], outer_rect[1])
right = min(rect[0] + rect[2], outer_rect[0] + outer_rect[2])
bottom = min(rect[1] + rect[3], outer_rect[1] + outer_rect[3])
rect = (left, top, right - left, bottom - top)
x_offset = rect[0] + (rect[2] / 2 if not x_offset else x_offset)
y_offset = rect[1] + (rect[3] / 2 if not y_offset else y_offset)
return x_offset, y_offset
