refactor(cfd): Bereitet den Dialog für neue Modi (multi, dir) vor

custom_file_dialog/custom_file_dialog.py

@@ -4,7 +4,7 @@ import tkinter as tk
 import subprocess
 import json
 import threading
-from typing import Optional, List, Tuple, Dict
+from typing import Optional, List, Tuple, Dict, Union
 from shared_libs.common_tools import IconManager, Tooltip, LxTools
 from .cfd_app_config import CfdConfigManager, LocaleStrings
 from .cfd_ui_setup import StyleManager, WidgetManager
@@ -33,7 +33,7 @@ class CustomFileDialog(tk.Toplevel):
 
     def __init__(self, parent: tk.Widget, initial_dir: Optional[str] = None,
                  filetypes: Optional[List[Tuple[str, str]]] = None,
-                 dialog_mode: str = "open", title: str = LocaleStrings.CFD["title"]):
+                 mode: str = "open", title: str = LocaleStrings.CFD["title"]):
         """
         Initializes the CustomFileDialog.
 
@@ -41,13 +41,16 @@ class CustomFileDialog(tk.Toplevel):
             parent: The parent widget.
             initial_dir: The initial directory to display.
             filetypes: A list of filetype tuples, e.g., [('Text files', '*.txt')].
-            dialog_mode: The dialog mode, either "open" or "save".
+            mode: The dialog mode. Can be "open" (select single file),
+                  "save" (select single file for saving),
+                  "multi" (select multiple files/directories),
+                  or "dir" (select a single directory).
             title: The title of the dialog window.
         """
         super().__init__(parent)
 
         self.my_tool_tip: Optional[Tooltip] = None
-        self.dialog_mode: str = dialog_mode
+        self.dialog_mode: str = mode
 
         self.load_settings()
 
@@ -65,7 +68,7 @@ class CustomFileDialog(tk.Toplevel):
         self.transient(parent)
         self.grab_set()
 
-        self.selected_file: Optional[str] = None
+        self.result: Optional[Union[str, List[str]]] = None
         self.current_dir: str = os.path.abspath(
             initial_dir) if initial_dir else os.path.expanduser("~")
         self.filetypes: List[Tuple[str, str]] = filetypes if filetypes else [
@@ -361,7 +364,8 @@ class CustomFileDialog(tk.Toplevel):
             self.widget_manager.devices_scrollbar.grid_remove()
 
     def toggle_recursive_search(self) -> None:
-        """Toggles the recursive search option on or off."""
+        """
+        Toggles the recursive search option on or off."""
         self.widget_manager.recursive_search.set(
             not self.widget_manager.recursive_search.get())
         if self.widget_manager.recursive_search.get():
@@ -408,29 +412,31 @@ class CustomFileDialog(tk.Toplevel):
 
     def on_open(self) -> None:
         """Handles the 'Open' action, closing the dialog if a file is selected."""
-        if self.selected_file and os.path.isfile(self.selected_file):
+        if self.result and isinstance(self.result, str) and os.path.isfile(self.result):
             self.destroy()
 
     def on_save(self) -> None:
         """Handles the 'Save' action, setting the selected file and closing the dialog."""
         file_name = self.widget_manager.filename_entry.get()
         if file_name:
-            self.selected_file = os.path.join(self.current_dir, file_name)
+            self.result = os.path.join(self.current_dir, file_name)
             self.destroy()
 
     def on_cancel(self) -> None:
         """Handles the 'Cancel' action, clearing the selection and closing the dialog."""
-        self.selected_file = None
+        self.result = None
         self.destroy()
 
-    def get_selected_file(self) -> Optional[str]:
+    def get_result(self) -> Optional[Union[str, List[str]]]:
         """
-        Returns the path of the selected file.
+        Returns the result of the dialog.
 
         Returns:
-            The selected file path, or None if no file was selected.
+            - A string containing a single path for modes 'open', 'save', 'dir'.
+            - A list of strings for mode 'multi'.
+            - None if the dialog was cancelled.
         """
-        return self.selected_file
+        return self.result
 
     def update_action_buttons_state(self) -> None:
         """Updates the state of action buttons (e.g., 'New Folder') based on directory permissions."""
@@ -560,6 +566,4 @@ class CustomFileDialog(tk.Toplevel):
 
         except Exception as e:
             print(f"Error getting mounted devices: {e}")
-        return devices
+        return devices
-
-