Fix room at index 0 not highlightable

TODO.md

@@ -2,7 +2,6 @@
 
 ## Before release
 
-- Fix highlighted account/room in MainPane
 - nio ClientTimeout
 - Default theme?
 - Name

src/gui/MainPane/AccountRoomsDelegate.qml

@@ -61,14 +61,22 @@ Column {
         highlight: null  // managed by the AccountRoomsList
 
 
+        readonly property bool hasActiveRoom:
+            window.uiState.page === "Pages/Chat/Chat.qml" &&
+            window.uiState.pageProperties.userId === userId
+
+        readonly property var activeRoomIndex:
+            hasActiveRoom ?
+            model.findIndex(window.uiState.pageProperties.roomId) : null
+
+
         Binding on currentIndex {
             value:
-                window.uiState.page === "Pages/Chat/Chat.qml" &&
-                window.uiState.pageProperties.userId === userId ?
-
-                roomList.model.findIndex(window.uiState.pageProperties.roomId)
-                || -1 :
-                -1
+                roomList.hasActiveRoom ?
+                (
+                    roomList.activeRoomIndex === null ?
+                    -1 : roomList.activeRoomIndex
+                ) : -1
 
             when: ! view.detachedCurrentIndex
         }

src/gui/MainPane/AccountRoomsList.qml

@@ -59,6 +59,15 @@ HListView {
     readonly property Room selectedRoom:
         currentItem ? currentItem.roomList.currentItem : null
 
+    readonly property bool hasActiveAccount:
+        window.uiState.page === "Pages/Chat/Chat.qml" ||
+        window.uiState.page === "Pages/AddChat/AddChat.qml" ||
+        window.uiState.page === "Pages/AccountSettings/AccountSettings.qml"
+
+    readonly property var activeAccountIndex:
+        hasActiveAccount ?
+        model.findIndex(window.uiState.pageProperties.userId) : null
+
 
     function previous() {
         detachedCurrentIndex = true
@@ -198,14 +207,8 @@ HListView {
 
     Binding on currentIndex {
         value:
-            [
-                "Pages/Chat/Chat.qml",
-                "Pages/AddChat/AddChat.qml",
-                "Pages/AccountSettings/AccountSettings.qml",
-            ].includes(window.uiState.page) ?
-
-            model.findIndex(window.uiState.pageProperties.userId) || -1 :
-            -1
+            hasActiveAccount ?
+            (activeAccountIndex === null ? -1 : activeAccountIndex) : -1
 
         when: ! detachedCurrentIndex
     }