From ff9be53a95def291b363ba877a73830b48656437 Mon Sep 17 00:00:00 2001
From: Dan <14043624+delivrance@users.noreply.github.com>
Date: Mon, 15 Oct 2018 10:14:40 +0200
Subject: [PATCH] Add UserStatusHandler class

---
 .../client/handlers/user_status_handler.py    | 54 +++++++++++++++++++
 1 file changed, 54 insertions(+)
 create mode 100644 pyrogram/client/handlers/user_status_handler.py

diff --git a/pyrogram/client/handlers/user_status_handler.py b/pyrogram/client/handlers/user_status_handler.py
new file mode 100644
index 00000000..2442d7eb
--- /dev/null
+++ b/pyrogram/client/handlers/user_status_handler.py
@@ -0,0 +1,54 @@
+# Pyrogram - Telegram MTProto API Client Library for Python
+# Copyright (C) 2017-2018 Dan Tès <https://github.com/delivrance>
+#
+# This file is part of Pyrogram.
+#
+# Pyrogram is free software: you can redistribute it and/or modify
+# it under the terms of the GNU Lesser General Public License as published
+# by the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# Pyrogram 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 General Public License for more details.
+#
+# You should have received a copy of the GNU Lesser General Public License
+# along with Pyrogram.  If not, see <http://www.gnu.org/licenses/>.
+
+from .handler import Handler
+
+
+class UserStatusHandler(Handler):
+    """The UserStatus handler class. Used to handle user status updates (user going online or offline).
+    It is intended to be used with :meth:`add_handler() <pyrogram.Client.add_handler>`
+
+    For a nicer way to register this handler, have a look at the
+    :meth:`on_user_status() <pyrogram.Client.on_user_status>` decorator.
+
+    Args:
+        callback (``callable``):
+            Pass a function that will be called when a new UserStatus update arrives. It takes *(client, user_status)*
+            as positional arguments (look at the section below for a detailed description).
+
+        filters (:obj:`Filters <pyrogram.Filters>`):
+            Pass one or more filters to allow only a subset of messages to be passed
+            in your callback function.
+
+    Other parameters:
+        client (:obj:`Client <pyrogram.Client>`):
+            The Client itself, useful when you want to call other API methods inside the user status handler.
+
+        user_status (:obj:`UserStatus <pyrogram.UserStatus>`):
+            The received UserStatus update.
+    """
+
+    def __init__(self, callback: callable, filters=None):
+        super().__init__(callback, filters)
+
+    def check(self, user_status):
+        return (
+            self.filters(user_status)
+            if callable(self.filters)
+            else True
+        )