import "package:flutter/material.dart"; extension ShowContextMenu on BuildContext { void showContextMenu({ required Offset globalPosition, required List children, }) { final overlay = Overlay.of(this).context.findRenderObject() as RenderBox; showMenu( context: this, position: RelativeRect.fromLTRB( globalPosition.dx, globalPosition.dy, overlay.size.width - globalPosition.dx, overlay.size.height - globalPosition.dy, ), color: Theme.of(this).colorScheme.surfaceContainerHighest, items: children, ); } }