anyway/frontend/lib/modules/current_trip_greeter.dart

111 lines
3.1 KiB
Dart

import 'dart:developer';
import 'package:anyway/constants.dart';
import 'package:anyway/structs/trip.dart';
import 'package:auto_size_text/auto_size_text.dart';
import 'package:flutter/material.dart';
class Greeter extends StatefulWidget {
final Trip trip;
Greeter({
required this.trip,
});
@override
State<Greeter> createState() => _GreeterState();
}
class _GreeterState extends State<Greeter> {
Widget greeterBuilder (BuildContext context, Widget? child) {
final Shader textGradient = APP_GRADIENT.createShader(Rect.fromLTWH(0.0, 0.0, 200.0, 70.0));
TextStyle greeterStyle = TextStyle(
foreground: Paint()..shader = textGradient,
fontWeight: FontWeight.bold,
fontSize: 26
);
Widget topGreeter;
if (widget.trip.uuid != 'pending') {
topGreeter = FutureBuilder(
future: widget.trip.cityName,
builder: (BuildContext context, AsyncSnapshot<String> snapshot) {
if (snapshot.hasData) {
return AutoSizeText(
maxLines: 1,
'Welcome to ${snapshot.data}!',
style: greeterStyle
);
} else if (snapshot.hasError) {
log('Error while fetching city name');
return AutoSizeText(
maxLines: 1,
'Welcome to your trip!',
style: greeterStyle
);
} else {
return AutoSizeText(
maxLines: 1,
'Welcome to ...',
style: greeterStyle
);
}
}
);
} else {
// still awaiting the trip
// We can hopefully infer the city name from the cityName future
// Show a linear loader at the bottom and an info message above
topGreeter = Column(
mainAxisAlignment: MainAxisAlignment.end,
children: [
FutureBuilder(
future: widget.trip.cityName,
builder: (BuildContext context, AsyncSnapshot<String> snapshot) {
if (snapshot.hasData) {
return AutoSizeText(
maxLines: 1,
'Generating your trip to ${snapshot.data}...',
style: greeterStyle
);
} else if (snapshot.hasError) {
// the exact error is shown in the central part of the trip overview. No need to show it here
return AutoSizeText(
maxLines: 1,
'Error while loading trip.',
style: greeterStyle
);
}
return AutoSizeText(
maxLines: 1,
'Generating your trip...',
style: greeterStyle
);
}
),
Padding(
padding: EdgeInsets.all(5),
child: const LinearProgressIndicator()
)
]
);
}
return Center(
child: topGreeter,
);
}
@override
Widget build(BuildContext context) {
return ListenableBuilder(
listenable: widget.trip,
builder: greeterBuilder,
);
}
}