WIP: Make material import work

cura/Settings/ContainerManager.py

@@ -459,7 +459,7 @@ class ContainerManager(QObject):
     @pyqtSlot(QUrl, result = "QVariantMap")
     def importMaterialContainer(self, file_url_or_string: Union[QUrl, str]) -> Dict[str, str]:
         if not file_url_or_string:
-            return { "status": "error", "message": "Invalid path"}
+            return {"status": "error", "message": "Invalid path"}
 
         if isinstance(file_url_or_string, QUrl):
             file_url = file_url_or_string.toLocalFile()
@@ -467,16 +467,16 @@ class ContainerManager(QObject):
             file_url = file_url_or_string
 
         if not file_url or not os.path.exists(file_url):
-            return { "status": "error", "message": "Invalid path" }
+            return {"status": "error", "message": "Invalid path"}
 
         try:
             mime_type = MimeTypeDatabase.getMimeTypeForFile(file_url)
         except MimeTypeNotFoundError:
-            return { "status": "error", "message": "Could not determine mime type of file" }
+            return {"status": "error", "message": "Could not determine mime type of file"}
 
         container_type = self._container_registry.getContainerForMimeType(mime_type)
         if not container_type:
-            return { "status": "error", "message": "Could not find a container to handle the specified file."}
+            return {"status": "error", "message": "Could not find a container to handle the specified file."}
 
         container_id = urllib.parse.unquote_plus(mime_type.stripExtension(os.path.basename(file_url)))
         container_id = self._container_registry.uniqueName(container_id)
@@ -487,7 +487,7 @@ class ContainerManager(QObject):
             with open(file_url, "rt", encoding = "utf-8") as f:
                 container.deserialize(f.read())
         except PermissionError:
-            return { "status": "error", "message": "Permission denied when trying to read the file"}
+            return {"status": "error", "message": "Permission denied when trying to read the file"}
         except Exception as ex:
             return {"status": "error", "message": str(ex)}
 
@@ -495,7 +495,7 @@ class ContainerManager(QObject):
 
         self._container_registry.addContainer(container)
 
-        return { "status": "success", "message": "Successfully imported container {0}".format(container.getName()) }
+        return {"status": "success", "message": "Successfully imported container {0}".format(container.getName())}
 
     ##  Update the current active quality changes container with the settings from the user container.
     #

resources/qml/Preferences/MaterialsPage.qml

@@ -108,8 +108,8 @@ Item
             text: catalog.i18nc("@action:button", "Import")
             iconName: "document-import"
             onClicked: {
-                forceActiveFocus()
-                // TODO
+                forceActiveFocus();
+                importMaterialDialog.open();
             }
             visible: true
         }
@@ -144,6 +144,34 @@ Item
         }
     }
 
+    FileDialog
+    {
+        id: importMaterialDialog
+        title: catalog.i18nc("@title:window", "Import Material")
+        selectExisting: true
+        nameFilters: Cura.ContainerManager.getContainerNameFilters("material")
+        folder: CuraApplication.getDefaultPath("dialog_material_path")
+        onAccepted:
+        {
+            var result = Cura.ContainerManager.importMaterialContainer(fileUrl);
+
+            messageDialog.title = catalog.i18nc("@title:window", "Import Material");
+            messageDialog.text = catalog.i18nc("@info:status Don't translate the XML tags <filename> or <message>!", "Could not import material <filename>%1</filename>: <message>%2</message>").arg(fileUrl).arg(result.message);
+            if (result.status == "success") {
+                messageDialog.icon = StandardIcon.Information;
+                messageDialog.text = catalog.i18nc("@info:status Don't translate the XML tag <filename>!", "Successfully imported material <filename>%1</filename>").arg(fileUrl);
+            }
+            else if (result.status == "duplicate") {
+                messageDialog.icon = StandardIcon.Warning;
+            }
+            else {
+                messageDialog.icon = StandardIcon.Critical;
+            }
+            messageDialog.open();
+            CuraApplication.setDefaultPath("dialog_material_path", folder);
+        }
+    }
+
     FileDialog
     {
         id: exportMaterialDialog