ability to back out of music menus

menu.py

@@ -8,6 +8,7 @@ class MenuType(Enum):
     CMD = auto()
     EXIT_CMD = auto()
     PLUGIN = auto()
+    BACK = auto()
 
 @dataclass
 class MenuItem:
@@ -16,6 +17,8 @@ class MenuItem:
     data: dict
 
 class Menu:
+    STR_BACK = "BACK"
+
     def __init__(
             self, config: list[MenuItem], cinput: ControlInput, graphics: Graphics):
         self._top_index = 0
@@ -65,6 +68,9 @@ class Menu:
             elif pressed == Button.BTN_A or pressed == Button.DIR_L:
                 if len(self._menu_path) > 0:
                     self._selected_index = self._menu_path.pop()
+                else:
+                    return MenuItem(self.STR_BACK, MenuType.BACK, {})
+
 
             self._cur_menu = self._menu
             for i in range(0, len(self._menu_path)):

plugin/music/__init__.py

@@ -31,11 +31,11 @@ def create_directory_menu(directory: str, dirname: str, is_resume: bool):
         return MenuItem(dirname, MenuType.SUB_MENU, {"sub_menu": dir_menu})
     else:
         if is_resume:
-            return MenuItem(dirname, MenuType.CMD, {
+            return MenuItem(dirname.lstrip("_"), MenuType.CMD, {
                 "dir": directory,
                 "mode": "resume"})
         else:
-            return MenuItem(dirname, MenuType.SUB_MENU, {
+            return MenuItem(dirname.lstrip("_"), MenuType.SUB_MENU, {
                 "sub_menu": [
                     MenuItem("Play", MenuType.CMD, {
                         "dir": directory,

plugin/music/player.py

@@ -1,4 +1,4 @@
-from menu import Menu
+from menu import Menu, MenuType
 from cinput import ControlInput
 from graphics import Graphics
 
@@ -10,4 +10,6 @@ class MusicPlayer:
 
     def run(self):
         while True:
-            self._menu.get_selection()
+            item = self._menu.get_selection()
+            if item.menu_type == MenuType.BACK:
+                return