Revert Some of "Fix show/hide button in WorkSpaceDialog printer selector"

This reverts commit 0c79ec73

cura/Machines/Models/MachineListModel.py

@@ -29,7 +29,7 @@ class MachineListModel(ListModel):
     IsAbstractMachineRole = Qt.ItemDataRole.UserRole + 7
     ComponentTypeRole = Qt.ItemDataRole.UserRole + 8
 
-    def __init__(self, parent: Optional[QObject] = None, machines_filter: Optional[List[GlobalStack]] = None) -> None:
+    def __init__(self, parent: Optional[QObject] = None, machines_filter: List[GlobalStack] = None, listenToChanges: bool = True) -> None:
         super().__init__(parent)
 
         self._show_cloud_printers = False
@@ -51,10 +51,11 @@ class MachineListModel(ListModel):
         self._change_timer.setSingleShot(True)
         self._change_timer.timeout.connect(self._update)
 
-        CuraContainerRegistry.getInstance().containerAdded.connect(self._onContainerChanged)
-        CuraContainerRegistry.getInstance().containerMetaDataChanged.connect(self._onContainerChanged)
-        CuraContainerRegistry.getInstance().containerRemoved.connect(self._onContainerChanged)
-        self._updateDelayed()
+        if listenToChanges:
+            CuraContainerRegistry.getInstance().containerAdded.connect(self._onContainerChanged)
+            CuraContainerRegistry.getInstance().containerMetaDataChanged.connect(self._onContainerChanged)
+            CuraContainerRegistry.getInstance().containerRemoved.connect(self._onContainerChanged)
+            self._updateDelayed()
 
     showCloudPrintersChanged = pyqtSignal(bool)
 

plugins/3MFReader/WorkspaceDialog.py

@@ -62,7 +62,7 @@ class WorkspaceDialog(QObject):
         self._extruders = []
         self._objects_on_plate = False
         self._is_printer_group = False
-        self._updatable_machines_model = MachineListModel(self)
+        self._updatable_machines_model = MachineListModel(self, listenToChanges=False)
         self._missing_package_metadata: List[Dict[str, str]] = []
         self._plugin_registry: PluginRegistry = CuraApplication.getInstance().getPluginRegistry()
         self._install_missing_package_dialog: Optional[QObject] = None
@@ -168,7 +168,7 @@ class WorkspaceDialog(QObject):
         return cast(MachineListModel, self._updatable_machines_model)
 
     def setUpdatableMachines(self, updatable_machines: List[GlobalStack]) -> None:
-        self._updatable_machines_model.set_machines_filter(updatable_machines)
+        self._updatable_machines_model.update(updatable_machines)
         self.updatableMachinesChanged.emit()
 
     @pyqtProperty(bool, notify = isAbstractMachineChanged)