manyi/venv/Lib/site-packages/selenium/webdriver/remote/file_detector.py

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#
#   http://www.apache.org/licenses/LICENSE-2.0
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import abc
import os
from selenium.webdriver.common.utils import keys_to_typing


class FileDetector(object):
    """
    Used for identifying whether a sequence of chars represents the path to a
    file.
    """
    __metaclass__ = abc.ABCMeta

    @abc.abstractmethod
    def is_local_file(self, *keys):
        return


class UselessFileDetector(FileDetector):
    """
    A file detector that never finds anything.
    """
    def is_local_file(self, *keys):
        return None


class LocalFileDetector(FileDetector):
    """
    Detects files on the local disk.
    """
    def is_local_file(self, *keys):
        file_path = ''.join(keys_to_typing(keys))

        if not file_path:
            return None

        try:
            if os.path.isfile(file_path):
                return file_path
        except Exception:
            pass
        return None