def eval_script(self, frame_xpaths, script):
'''在指定frame中执行JavaScript，并返回执行结果（该实现需要处理js基础库未注入情况的处理）
:param frame_xpaths: frame元素的XPATH路径，如果是顶层页面，怎传入“[]”
:type frame_xpaths: list
:param script: 要执行的JavaScript语句
:type script: string
'''
from qt4w.util import JavaScriptError, ControlNotFoundError, ControlAmbiguousError
try:
return self._webview.eval_script(frame_xpaths, script)
except JavaScriptError as e:
err_msg = e.message
err_msg = err_msg.split('\n')[0] # 错误堆栈信息可能会有影响
err_msg = general_encode(err_msg)
if ('ReferenceError' in err_msg or 'TypeError'
in err_msg) and 'qt4w_driver_lib' in err_msg:
# ie8 TypeError ie9 ReferenceError
# 注入js基础库
self.eval_script(e.frame, self.driver_script)
return self.eval_script(frame_xpaths, script)
elif 'Find element' in err_msg and 'failed' in err_msg:
# 未找到元素
raise ControlNotFoundError(err_msg)
elif 'Find' in err_msg and 'elements match' in err_msg:
err_msg += self._get_dom_tree(frame_xpaths)
raise ControlAmbiguousError(err_msg)
else:
raise e
def _get_dom_tree(self, frame_xpaths):
'''获取DOM树
'''
try:
from tuia.env import run_env, EnumEnvType
if run_env != EnumEnvType.Lab:
return ''
except ImportError:
pass
result = '\nCurrent DOM Tree：\n'
dom_tree = self.eval_script(
frame_xpaths, 'document.documentElement.outerHTML;')
dom_tree = general_encode(dom_tree)
result += dom_tree
return result
def _my_encode(self, text):
'''对于中文，统一处理成unicode编码
如“中国”，变成“\u4e2d\u56fd”
'''
text = unicode_decode(text)
return general_encode(text.encode('raw_unicode_escape'))