Reorganize backend files, show accounts in UI

harmonyqml/backend/signal_manager.py

@@ -0,0 +1,33 @@
+# Copyright 2019 miruka
+# This file is part of harmonyqml, licensed under GPLv3.
+
+from PyQt5.QtCore import QObject
+
+from .backend import Backend
+from .client import Client
+from .model.items import User
+
+
+class SignalManager(QObject):
+    def __init__(self, backend: Backend) -> None:
+        super().__init__()
+        self.backend = backend
+        self.connectAll()
+
+
+    def connectAll(self) -> None:
+        be = self.backend
+        be.clientManager.clientAdded.connect(self.onClientAdded)
+        be.clientManager.clientDeleted.connect(self.onClientDeleted)
+
+
+    def onClientAdded(self, client: Client) -> None:
+        self.backend.models.accounts.append(User(
+            user_id      = client.nio.user_id,
+            display_name = client.nio.user_id.lstrip("@").split(":")[0],
+        ))
+
+
+    def onClientDeleted(self, user_id: str) -> None:
+        accs = self.backend.models.accounts
+        del accs[accs.indexWhere("user_id", user_id)]