Fix "Mentions & keywords" notification level

Make it work in cases where multiple accounts are present in the room
and one of them is highlighted.

src/backend/backend.py

@@ -8,7 +8,7 @@ import sys
 import time
 from datetime import datetime
 from pathlib import Path
-from typing import Any, DefaultDict, Dict, List, Optional, Set, Tuple, Union
+from typing import Any, DefaultDict, Dict, List, Optional, Tuple, Union
 from urllib.parse import urlparse
 
 import aiohttp
@@ -133,7 +133,6 @@ class Backend:
 
         self.mxc_events: DefaultDict[str, List[Event]] = DefaultDict(list)
 
-        self.notified_events:           Set[str]        = set()  # {event_id}
         self.notification_avatar_cache: Dict[str, Path] = {}     # {mxc: path}
 
 

src/backend/matrix_client.py

@@ -2181,16 +2181,12 @@ class MatrixClient(nio.AsyncClient):
         if from_us:
             return item
 
-        already_notified = item.event_id in self.backend.notified_events
-
-        if already_notified or await self.event_is_past(ev):
+        if await self.event_is_past(ev):
             await self.update_account_unread_counts()
             return item
 
         # Alerts & notifications
 
-        self.backend.notified_events.add(item.event_id)
-
         room_item = self.models[self.user_id, "rooms"][room.room_id]
 
         unread = \
@@ -2230,6 +2226,7 @@ class MatrixClient(nio.AsyncClient):
                 body = f"{sender}: {item.inline_content}"
 
             NotificationRequested(
+                id              = item.id,
                 high_importance = highlight,
                 title           = room_name,
 

src/backend/pyotherside_events.py

@@ -42,6 +42,7 @@ class NotificationRequested(PyOtherSideEvent):
     flash the program's taskbar icon on Windows.
     """
 
+    id:              str              = field()
     title:           str              = field()
     body:            str              = ""
     image:           Union[Path, str] = ""

src/gui/PythonBridge/EventHandlers.qml

@@ -11,12 +11,17 @@ QtObject {
         Qt.exit(exitCode)
     }
 
-    function onNotificationRequested(title, body, image, highImportance) {
+    function onNotificationRequested(id, title, body, image, highImportance) {
         const level = window.notificationLevel
 
-        if (Qt.application.state === Qt.ApplicationActive) return
         if (level === Window.NotificationLevel.None) return
         if (level === Window.MentionsKeywords && ! highImportance) return
+        if (window.notifiedIds.has(id)) return
+
+        window.notifiedIds.add(id)
+        window.notifiedIdsChanged()
+
+        if (Qt.application.state === Qt.ApplicationActive) return
 
         py.callCoro("desktop_notify", [title, body, image])
 

src/gui/Window.qml

@@ -20,6 +20,7 @@ ApplicationWindow {
         window.visibility === window.Hidden
 
     property int notificationLevel: Window.NotificationLevel.All
+    property var notifiedIds: new Set()
 
     property var mainUI: null
     property var settings: ({})