frosty/lib/widgets/scroll_to_top_button.dart

import 'package:flutter/material.dart';

class ScrollToTopButton extends StatelessWidget {
  final ScrollController scrollController;

  const ScrollToTopButton({super.key, required this.scrollController});

  @override
  Widget build(BuildContext context) {
    return SafeArea(
      child: Padding(
        padding: const EdgeInsets.only(bottom: 8),
        child: Tooltip(
          message: 'Scroll to top',
          preferBelow: false,
          child: FilledButton(
            onPressed: () => scrollController.animateTo(
              0.0,
              curve: Curves.easeOut,
              duration: const Duration(milliseconds: 500),
            ),
            style: FilledButton.styleFrom(
              shape: const CircleBorder(),
              padding: const EdgeInsets.all(12),
            ),
            child: const Icon(Icons.arrow_upward_rounded),
          ),
        ),
      ),
    );
  }
}