scroll elements into view before moving the pointer

The pointer is moved to viewport coordinates, so an element below the fold produced a target outside the window and the driver raised MoveTargetOutOfBoundsException. Observed on the daily set opener during a scheduled run. Also clamps the bezier path to the viewport.

src/mouse_trajectory.py

@@ -282,11 +282,21 @@ class MouseUtils:
 		start_time = time.monotonic()
 		end_time = start_time + move_time
 
+		# The distorted bezier path can overshoot the window edge, which the
+		# driver rejects, so keep every sampled point inside the viewport.
+		viewport = self.driver.execute_script(
+			"return [window.innerWidth, window.innerHeight];"
+		)
+		max_x, max_y = int(viewport[0]) - 2, int(viewport[1]) - 2
+
 		while (current_time := time.monotonic()) < end_time:
 			t = current_time - start_time
 			point = path_function(t)
 
-			point = (max(0, point[0]), max(0, point[1])) # ensure the point is not negative
+			point = (
+				min(max(0, point[0]), max_x),
+				min(max(0, point[1]), max_y)
+			)
 
 			actions = ActionBuilder(self.driver, duration=0)
 			actions.pointer_action.move_to_location(point[0], point[1])
@@ -302,6 +312,15 @@ class MouseUtils:
 
 
 	def move_to_element(self, element: WebElement, visualize: bool=True):
+		# The pointer is moved to viewport coordinates, so an element below the
+		# fold yields a target outside the window and the driver rejects the move
+		# with MoveTargetOutOfBoundsException. Bring it into view first.
+		self.driver.execute_script(
+			"arguments[0].scrollIntoView({block: 'center', inline: 'center'});",
+			element
+		)
+		time.sleep(0.4)
+
 		current_mouse_position = self.get_current_mouse_position()
 
 		rect = self.driver.execute_script("""