Warn user and prevent switching when no remote account is logged in

qml/components/dialogs/AccountSelectorDialog.qml

@@ -39,11 +39,15 @@ Item {
 
     // carry initial request until dialog is visible
     property int _initialAccountId: -2   // -2 = none, -1 = "All"
+    property var activeDialog: null
 
     /** Show dialog; optionally preselect an account id */
     function open(initialAccountId) {
+        if (activeDialog)
+            return activeDialog
         _initialAccountId = (typeof initialAccountId === "number") ? initialAccountId : -2
-        PopupUtils.open(dialogComponent)
+        activeDialog = PopupUtils.open(dialogComponent)
+        return activeDialog
     }
 
     /** Toggle between Local Account (0) and last active remote account */
@@ -54,15 +58,23 @@ Item {
                 selectedAccountName = Accounts.getAccountName(0)
                 accepted(0, selectedAccountName)
             }
+            return true
         } else {
-            var targetId = lastRemoteAccountId > 0 ? lastRemoteAccountId : Accounts.getDefaultRemoteAccountId()
+            var targetId = (lastRemoteAccountId > 0 && Accounts.getAccountName(lastRemoteAccountId))
+                           ? lastRemoteAccountId
+                           : Accounts.getDefaultRemoteAccountId()
             if (targetId > 0 && selectedAccountId !== targetId) {
                 selectedAccountId = targetId
                 selectedAccountName = Accounts.getAccountName(targetId)
                 accepted(targetId, selectedAccountName)
+                return true
             } else if (targetId <= 0) {
-                open(selectedAccountId)
+                if (typeof notifPopup !== "undefined") {
+                    notifPopup.open(i18n.dtr("ubtms", "Notice"), i18n.dtr("ubtms", "You don't have any account logged in"), "warning")
+                }
+                return false
             }
+            return true
         }
     }
 
@@ -285,6 +297,10 @@ Item {
                     loadAccounts()
                 }
             }
+
+            Component.onDestruction: {
+                root.activeDialog = null
+            }
         }
     }
 }

qml/components/feedback/NotificationPopup.qml

@@ -37,6 +37,8 @@ Item {
     property string type: "info"     // "success", "error", "warning", "info"
     property string titleText: "Notice"
     property string messageText: "Something happened."
+    property var activeDialog: null
+    readonly property bool isOpen: activeDialog !== null
     signal closed
 
     Component {
@@ -45,6 +47,7 @@ Item {
         Dialog {
             id: popupDialog
             title: popupWrapper.titleText
+            modal: true
 
             // Dark mode friendly styling
             StyleHints {
@@ -68,7 +71,11 @@ Item {
             // Color logic based on type (optional, add custom styling if needed)
             Button {
                 text: "OK"
-                onClicked: PopupUtils.close(popupDialog)
+                onClicked: {
+                    PopupUtils.close(popupDialog);
+                    popupWrapper.activeDialog = null;
+                    popupWrapper.closed();
+                }
 
                 // Dark mode friendly button styling
                 StyleHints {
@@ -77,6 +84,10 @@ Item {
                     backgroundColor: LomiriColors.orange
                 }
             }
+
+            Component.onDestruction: {
+                popupWrapper.activeDialog = null;
+            }
         }
     }
 
@@ -87,6 +98,11 @@ Item {
             messageText = messageArg;
         if (typeArg)
             type = typeArg;
-        PopupUtils.open(dialogComponent);
+
+        if (activeDialog)
+            return activeDialog;
+
+        activeDialog = PopupUtils.open(dialogComponent);
+        return activeDialog;
     }
 }