Drag preview is affected by CanvasLayer offset

[peter-kish]

Tested versions

• Reproducible in: v4.4.dev2.official [97ef3c8], v4.3.stable.official [77dcf97]

System information

Godot v4.3.stable - Ubuntu 24.04.1 LTS 24.04 - X11 - Vulkan (Forward+) - integrated Intel(R) Xe Graphics (TGL GT2) - 11th Gen Intel(R) Core(TM) i7-1185G7 @ 3.00GHz (8 Threads)

Issue description

Dragging a Control node that is located within a CanvasLayer that has an offset results in the drag preview having the same offset:

Steps to reproduce

1. Create a CanvasLayer node and set its offset to a non-zero value
2. Create a Control node (e.g. TextureRect) with the CanvasLayer as its (direct or indirect) parent
3. Attach a script to the Control node and implement _get_drag_data. E.g.:

func _get_drag_data(_at_position: Vector2) -> Variant:
    set_drag_preview(self.duplicate())
    return self

4. Run the scene and drag the Control node around

Minimal reproduction project (MRP)

dragndropbug.zip

[Sauermann]

Reproducible in v4.0.stable.official [92bee43]
Related to #67186