implement callback data filter

client/src/telethon/_impl/client/events/filters/__init__.py

@@ -1,6 +1,7 @@
 from .combinators import All, Any, Filter, Not
 from .common import Chats, ChatType, Senders
 from .messages import Command, Forward, Incoming, Media, Outgoing, Reply, Text
+from .callback import CallbackData
 
 __all__ = [
     "All",
@@ -17,4 +18,5 @@ __all__ = [
     "Outgoing",
     "Reply",
     "Text",
+    "CallbackData",
 ]

client/src/telethon/_impl/client/events/filters/callback.py

@@ -0,0 +1,23 @@
+from __future__ import annotations
+
+from .combinators import Combinable
+from ..event import Event
+
+
+class CallbackData(Combinable):
+    """
+    Filter by ``event.data`` using a full bytes match, used for callback events :class:`events.ButtonCallback`
+
+    It checks if ``event.data`` is equal to the data passed to the filter.
+
+    :param data: Bytes to match data with.
+    """
+
+    __slots__ = ("_data",)
+
+    def __init__(self, data: bytes) -> None:
+        self._data = data
+
+    def __call__(self, event: Event) -> bool:
+        data = getattr(event, "data", None)
+        return self._data == data if data is not None else False

client/src/telethon/events/filters.py

@@ -22,6 +22,7 @@ from .._impl.client.events.filters import (
     Reply,
     Senders,
     Text,
+    CallbackData,
 )
 
 __all__ = [
@@ -39,4 +40,5 @@ __all__ = [
     "Reply",
     "Senders",
     "Text",
+    "CallbackData"
 ]