From ae4bcffa068306ecada3e4e0c3b7e9f12b55701f Mon Sep 17 00:00:00 2001
From: miruka <miruka@disroot.org>
Date: Sun, 10 Jan 2021 15:26:19 -0400
Subject: [PATCH] settings.py: add Chat.Composer.TypingNotifications

---
 src/backend/matrix_client.py |  7 +++++++
 src/backend/pcn/section.py   |  5 +++++
 src/backend/utils.py         | 16 ++++++++++++++++
 src/config/settings.py       | 17 ++++++++++++++++-
 4 files changed, 44 insertions(+), 1 deletion(-)

diff --git a/src/backend/matrix_client.py b/src/backend/matrix_client.py
index 56c0c918..9b1d55c5 100644
--- a/src/backend/matrix_client.py
+++ b/src/backend/matrix_client.py
@@ -1312,6 +1312,13 @@ class MatrixClient(nio.AsyncClient):
     ):
         """Set typing notice to the server."""
 
+        if not utils.config_get_account_room_rule(
+            rules   = self.backend.settings.Chat.Composer.TypingNotifications,
+            user_id = self.user_id,
+            room_id = room_id,
+        ):
+            return
+
         presence = self.models["accounts"][self.user_id].presence
 
         if presence not in [Presence.State.invisible, Presence.State.offline]:
diff --git a/src/backend/pcn/section.py b/src/backend/pcn/section.py
index 7ed46015..900c28bd 100644
--- a/src/backend/pcn/section.py
+++ b/src/backend/pcn/section.py
@@ -179,6 +179,11 @@ class Section(MutableMapping):
         return f"{name}({content})"
 
 
+    def children(self) -> Tuple[Tuple[str, Union["Section", Any]], ...]:
+        """Return pairs of (name, value) for child sections and properties."""
+        return tuple((name, getattr(self, name)) for name in self)
+
+
     @classmethod
     def _register_set_attr(cls, name: str, add_to_set_name: str) -> None:
         cls.methods.discard(name)
diff --git a/src/backend/utils.py b/src/backend/utils.py
index 899676d1..3ca0175e 100644
--- a/src/backend/utils.py
+++ b/src/backend/utils.py
@@ -9,6 +9,7 @@ import html
 import inspect
 import io
 import json
+import re
 import sys
 import xml.etree.cElementTree as xml_etree
 from concurrent.futures import ProcessPoolExecutor
@@ -33,6 +34,7 @@ from nio.crypto import async_generator_from_data
 from PIL import Image as PILImage
 
 from .color import Color
+from .pcn.section import Section
 
 if sys.version_info >= (3, 7):
     from contextlib import asynccontextmanager
@@ -105,6 +107,20 @@ def flatten_dict_keys(
     return flat
 
 
+def config_get_account_room_rule(
+    rules: Section, user_id: str, room_id: str,
+) -> Any:
+    """Return best matching rule value for an account/room PCN free Section."""
+
+    for name, value in reversed(rules.children()):
+        name = re.sub(r"\s+", " ", name.strip())
+
+        if name in (user_id, room_id, f"{user_id} {room_id}"):
+            return value
+
+    return rules.default
+
+
 async def is_svg(file: File) -> bool:
     """Return whether the file is a SVG (`lxml` is used for detection)."""
 
diff --git a/src/config/settings.py b/src/config/settings.py
index 44488d62..b6698b7d 100644
--- a/src/config/settings.py
+++ b/src/config/settings.py
@@ -98,7 +98,7 @@ class Chat:
     always_center_header: bool = False
 
     # When the chat timeline is larger than this pixel number,
-    # Align your own messages to the left of the timeline instead of right.
+    # align your own messages to the left of the timeline instead of right.
     # Can be 0 to always show your messages on the left.
     own_messages_on_left_above: int = 895
 
@@ -122,6 +122,21 @@ class Chat:
     mark_read_delay: float = 0.2
 
     class Composer:
+        class TypingNotifications:
+            # Rules controlling whether "<user> is typing..." notifications
+            # should be sent to other users in rooms.
+            # The `default` property is required. Other properties can be
+            # added: user IDs, room IDs, or space-separated user + room IDs.
+
+            # Send typing notifications everywhere by default:
+            default: bool = True
+            # But don't send them for rooms under this account:
+            "@account_1:example.org": bool = False
+            # Neither send them in this room, regardless of the account used:
+            "!room:example.org": bool = False
+            # Except if it's this account and this room, then send them:
+            "@account_2:example.org !room:example.org": bool = True
+
         class Aliases:
             # Each property is the user ID of an account, value is the alias.
             # From any chat, start a message with an alias followed by a space