freezer/lib/page_routes/fade.dart

import 'package:flutter/cupertino.dart';
import 'package:freezer/page_routes/basic_page_route.dart';
import 'package:freezer/ui/animated_blur.dart';

class FadePageRoute<T> extends BasicPageRoute<T> {
  @override
  final bool barrierDismissible;
  @override
  final Color? barrierColor;
  @override
  final bool opaque;

  final WidgetBuilder builder;
  final bool blur;
  FadePageRoute({
    required this.builder,
    this.blur = false,
    super.transitionDuration,
    super.maintainState,
    super.settings,
    this.barrierColor,
    this.barrierDismissible = false,
    this.opaque = true,
  });

  @override
  Widget buildPage(BuildContext context, Animation<double> animation,
          Animation<double> secondaryAnimation) =>
      builder(context);

  @override
  Widget buildTransitions(BuildContext context, Animation<double> animation,
      Animation<double> secondaryAnimation, Widget child) {
    final baseTransition = FadeTransition(
      opacity: animation,
      child: child,
    );
    if (blur) {
      return Stack(children: [
        Positioned.fill(
            child: AnimatedBlur(
                animation: animation,
                multiplier: 10.0,
                child: const SizedBox())),
        baseTransition,
      ]);
    }
    return baseTransition;
  }
}