py,st3m: ViewManager: Don't impose additional delay after transition

Since 18f17883, a drawn frame is
guaranteed to reach the screen in a timely manner regardless of whether
the next think call will block for longer or not, so there's no need
to queue additional frames to make sure the animation has visibly
ended before dispatching _done callbacks anymore.

python_payload/st3m/ui/view.py

@@ -212,7 +212,7 @@ class ViewManager(Responder):
         self._input = InputController()
 
         self._first_think = False
-        self._fully_drawn = 0
+        self._fully_drawn = False
 
         self._outgoing_wants_to_think = False
 
@@ -235,7 +235,7 @@ class ViewManager(Responder):
         self._transitioning = True
         self._transition = 0.0
         self._first_think = True
-        self._fully_drawn = 0
+        self._fully_drawn = False
         self._direction = self._pending_direction
         self._overriden_vt = self._pending_vt
         self._outgoing = self._incoming
@@ -258,7 +258,7 @@ class ViewManager(Responder):
 
             if self._transition >= 1.0:
                 self._transition = 1.0
-                if self._fully_drawn > 1:
+                if self._fully_drawn:
                     self._end_transition()
 
         if self._input.buttons.os.middle.pressed:
@@ -284,7 +284,7 @@ class ViewManager(Responder):
                 return
 
             if self._transition >= 1.0:
-                self._fully_drawn += 1
+                self._fully_drawn = True
                 ctx.save()
                 self._incoming.draw(ctx)
                 ctx.restore()