Refactor missing packages dialog into model (MissingPackageList) and controller (InstallMissingPackagesDialog.qml)

Rename classes and files to have unified naming.

CURA-6990

plugins/Marketplace/InstallMissingPackagesDialog.py

@@ -0,0 +1,60 @@
+import os
+
+from PyQt6.QtCore import QObject, pyqtSignal, pyqtProperty
+from typing import Optional, List, Dict, cast
+from cura.CuraApplication import CuraApplication
+from UM.PluginRegistry import PluginRegistry
+from cura.CuraPackageManager import CuraPackageManager
+
+from plugins.Marketplace.MissingPackageList import MissingPackageList
+
+
+class InstallMissingPackageDialog(QObject):
+    """Dialog used to display packages that need to be installed to load 3mf file materials"""
+    def __init__(self, packages_metadata: List[Dict[str, str]]):
+        """Initialize
+
+        :param packages_metadata: List of dictionaries containing information about missing packages.
+        """
+        super().__init__()
+
+        self._plugin_registry: PluginRegistry = CuraApplication.getInstance().getPluginRegistry()
+        self._package_manager: CuraPackageManager = cast(CuraPackageManager, CuraApplication.getInstance().getPackageManager())
+        self._package_manager.installedPackagesChanged.connect(self.checkIfRestartNeeded)
+
+        self._dialog: Optional[QObject] = None
+        self._restart_needed = False
+        self._package_metadata: List[Dict[str, str]] = packages_metadata
+
+        self._package_model = MissingPackageList()
+        self._package_model.setPackageIds(packages_metadata)
+
+    def show(self):
+        plugin_path = self._plugin_registry.getPluginPath("Marketplace")
+        if plugin_path is None:
+            plugin_path = os.path.dirname(__file__)
+
+        # create a QML component for the license dialog
+        license_dialog_component_path = os.path.join(plugin_path, "resources", "qml", "InstallMissingPackagesDialog.qml")
+        self._dialog = CuraApplication.getInstance().createQmlComponent(license_dialog_component_path, {"manager": self})
+        self._dialog.show()
+
+    def checkIfRestartNeeded(self) -> None:
+        if self._dialog is None:
+            return
+
+        if self._package_manager.hasPackagesToRemoveOrInstall:
+            self._restart_needed = True
+        else:
+            self._restart_needed = False
+        self.showRestartChanged.emit()
+
+    showRestartChanged = pyqtSignal()
+
+    @pyqtProperty(bool, notify=showRestartChanged)
+    def showRestartNotification(self) -> bool:
+        return self._restart_needed
+
+    @pyqtProperty(QObject)
+    def model(self):
+        return self._package_model