start_launcher(): empty screen stack

internal_filesystem/lib/mpos/apps.py

@@ -32,7 +32,7 @@ def execute_script(script_source, is_file, is_launcher, is_graphical):
                 prevscreen = lv.screen_active()
                 newscreen=lv.obj()
                 newscreen.set_size(lv.pct(100),lv.pct(100))
-            lv.screen_load(newscreen)
+            mpos.ui.load_screen(newscreen)
             script_globals = {
                 'lv': lv,
                 'th': mpos.ui.th,
@@ -111,6 +111,7 @@ def start_app(app_dir, is_launcher=False):
         mpos.ui.close_bar()
 
 def restart_launcher():
+    mpos.ui.empty_screen_stack()
     # No need to stop the other launcher first, because it exits after building the screen
     start_app_by_name("com.example.launcher", True)
 

internal_filesystem/lib/mpos/ui.py

@@ -428,6 +428,10 @@ def clean_top_layer():
 
 screen_stack = []
 
+def empty_screen_stack():
+    global screen_stack
+    screen_stack.clear()
+
 def load_screen(screen):
     global screen_stack
     topscreen = None
@@ -447,7 +451,7 @@ def back_screen():
         #print("Adding notification bar and drawer to top layer")
         #mpos.ui.create_notification_bar()
         #mpos.ui.create_drawer()
-        close_top_layer_msgboxes()
+        close_top_layer_msgboxes() # would be nicer to "cancel" all input events
         
         print("Loading previous screen")
         screen_stack.pop()  # Remove current screen