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# to you under the Apache License, Version 2.0 (the
# "License"); you may not use this file except in compliance
# with the License.  You may obtain a copy of the License at
#
#   http://www.apache.org/licenses/LICENSE-2.0
#
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# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
# KIND, either express or implied.  See the License for the
# specific language governing permissions and limitations
# under the License.

"""
The Alert implementation.
"""

from selenium.webdriver.common.utils import keys_to_typing
from selenium.webdriver.remote.command import Command


class Alert(object):
    """
    Allows to work with alerts.

    Use this class to interact with alert prompts.  It contains methods for dismissing,
    accepting, inputting, and getting text from alert prompts.

    Accepting / Dismissing alert prompts::

        Alert(driver).accept()
        Alert(driver).dismiss()

    Inputting a value into an alert prompt:

        name_prompt = Alert(driver)
        name_prompt.send_keys("Willian Shakesphere")
        name_prompt.accept()


    Reading a the text of a prompt for verification:

        alert_text = Alert(driver).text
        self.assertEqual("Do you wish to quit?", alert_text)

    """

    def __init__(self, driver):
        """
        Creates a new Alert.

        :Args:
         - driver: The WebDriver instance which performs user actions.
        """
        self.driver = driver

    @property
    def text(self):
        """
        Gets the text of the Alert.
        """
        if self.driver.w3c:
            return self.driver.execute(Command.W3C_GET_ALERT_TEXT)["value"]
        else:
            return self.driver.execute(Command.GET_ALERT_TEXT)["value"]

    def dismiss(self):
        """
        Dismisses the alert available.
        """
        if self.driver.w3c:
            self.driver.execute(Command.W3C_DISMISS_ALERT)
        else:
            self.driver.execute(Command.DISMISS_ALERT)

    def accept(self):
        """
        Accepts the alert available.

        Usage::
        Alert(driver).accept() # Confirm a alert dialog.
        """
        if self.driver.w3c:
            self.driver.execute(Command.W3C_ACCEPT_ALERT)
        else:
            self.driver.execute(Command.ACCEPT_ALERT)

    def send_keys(self, keysToSend):
        """
        Send Keys to the Alert.

        :Args:
         - keysToSend: The text to be sent to Alert.


        """
        if self.driver.w3c:
            self.driver.execute(Command.W3C_SET_ALERT_VALUE, {'value': keys_to_typing(keysToSend),
                                                              'text': keysToSend})
        else:
            self.driver.execute(Command.SET_ALERT_VALUE, {'text': keysToSend})
