python-telegram-bot/telegram/keyboardbutton.py

#!/usr/bin/env python
#
# A library that provides a Python interface to the Telegram Bot API
# Copyright (C) 2015-2017
# Leandro Toledo de Souza <devs@python-telegram-bot.org>
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU Lesser Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU Lesser Public License for more details.
#
# You should have received a copy of the GNU Lesser Public License
# along with this program.  If not, see [http://www.gnu.org/licenses/].
"""This module contains an object that represents a Telegram KeyboardButton."""

from telegram import TelegramObject


class KeyboardButton(TelegramObject):
    """
    This object represents one button of the reply keyboard. For simple text buttons String can be
    used instead of this object to specify text of the button.

    Note:
        Optional fields are mutually exclusive.

    Attributes:
        text (:obj:`str`): Text of the button.
        request_location (:obj:`bool`): Optional. If the user's phone number will be sent.
        request_contact (:obj:`bool`): Optional. If the user's current location will be sent.

    Args:
        text (:obj:`str`): Text of the button. If none of the optional fields are used, it will be
            sent to the bot as a message when the button is pressed.
        request_location (:obj:`bool`, optional): If True, the user's phone number will be sent as
            a contact when the button is pressed. Available in private chats only.
        request_contact (:obj:`bool`, optional): If True, the user's current location will be sent
            when the button is pressed. Available in private chats only.

    Note:
        :attr:`request_contact` and :attr:`request_location` options will only work in Telegram
        versions released after 9 April, 2016. Older clients will ignore them.
    """

    def __init__(self, text, request_contact=None, request_location=None, **kwargs):
        # Required
        self.text = text
        # Optionals
        self.request_contact = request_contact
        self.request_location = request_location

    @classmethod
    def de_json(cls, data, bot):
        if not data:
            return None

        return cls(**data)

    @classmethod
    def de_list(cls, data, bot):
        if not data:
            return []

        keyboards = list()
        for keyboard in data:
            keyboards.append(cls.de_json(keyboard, bot))

        return keyboards