freezer/lib/ui/home_screen.dart

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Dart
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import 'package:flutter/material.dart';
import 'package:freezer/api/deezer.dart';
import 'package:freezer/api/definitions.dart';
import 'package:freezer/api/player.dart';
import 'package:freezer/ui/error.dart';
import 'package:freezer/ui/menu.dart';
import 'tiles.dart';
import 'details_screens.dart';
import '../settings.dart';
class HomeScreen extends StatelessWidget {
@override
Widget build(BuildContext context) {
return ListView(
children: <Widget>[
Container(height: 16.0,),
FreezerTitle(),
Container(height: 16.0,),
HomePageScreen()
],
);
}
}
class FreezerTitle extends StatelessWidget {
@override
Widget build(BuildContext context) {
return Text(
'freezer',
textAlign: TextAlign.center,
style: TextStyle(
fontFamily: 'Jost',
fontSize: 75,
fontStyle: FontStyle.italic,
letterSpacing: 7
),
);
}
}
class HomePageScreen extends StatefulWidget {
final HomePage homePage;
final DeezerChannel channel;
HomePageScreen({this.homePage, this.channel, Key key}): super(key: key);
@override
_HomePageScreenState createState() => _HomePageScreenState();
}
class _HomePageScreenState extends State<HomePageScreen> {
HomePage _homePage;
bool _cancel = false;
bool _error = false;
void _loadChannel() async {
HomePage _hp;
//Fetch channel from api
try {
_hp = await deezerAPI.getChannel(widget.channel.target);
} catch (e) {}
if (_hp == null) {
//On error
setState(() => _error = true);
return;
}
setState(() => _homePage = _hp);
}
void _loadHomePage() async {
//Load local
try {
HomePage _hp = await HomePage().load();
setState(() => _homePage = _hp);
} catch (e) {}
//On background load from API
try {
if (settings.offlineMode) return;
HomePage _hp = await deezerAPI.homePage();
if (_hp != null) {
if (_cancel) return;
if (_hp.sections.length == 0) return;
setState(() => _homePage = _hp);
//Save to cache
await _homePage.save();
}
} catch (e) {}
}
void _load() {
if (widget.channel != null) {
_loadChannel();
return;
}
if (widget.channel == null && widget.homePage == null) {
_loadHomePage();
return;
}
if (widget.homePage.sections == null || widget.homePage.sections.length == 0) {
_loadHomePage();
return;
}
//Already have data
setState(() => _homePage = widget.homePage);
}
@override
void initState() {
_load();
super.initState();
}
@override
void dispose() {
_cancel = true;
super.dispose();
}
@override
Widget build(BuildContext context) {
if (_homePage == null)
return Center(child: CircularProgressIndicator(),);
if (_error)
return ErrorScreen();
return SingleChildScrollView(
child: Column(
crossAxisAlignment: CrossAxisAlignment.start,
children: List.generate(_homePage.sections.length, (i) {
HomePageSection section = _homePage.sections[i];
return Column(
mainAxisSize: MainAxisSize.min,
crossAxisAlignment: CrossAxisAlignment.start,
children: [
Padding(
child: Text(
section.title,
textAlign: TextAlign.left,
maxLines: 2,
overflow: TextOverflow.ellipsis,
style: TextStyle(fontSize: 24.0),
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),
padding: EdgeInsets.symmetric(horizontal: 8.0, vertical: 8.0)
),
SingleChildScrollView(
scrollDirection: Axis.horizontal,
child: Row(
children: List.generate(section.items.length, (i) {
HomePageItem item = section.items[i];
return HomePageItemWidget(item);
}),
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),
),
],
);
}),
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),
);
}
}
class HomePageItemWidget extends StatelessWidget {
HomePageItem item;
HomePageItemWidget(this.item);
@override
Widget build(BuildContext context) {
switch (item.type) {
case HomePageItemType.SMARTTRACKLIST:
return SmartTrackListTile(
item.value,
onTap: () {
playerHelper.playFromSmartTrackList(item.value);
},
);
case HomePageItemType.ALBUM:
return AlbumCard(
item.value,
onTap: () {
Navigator.of(context).push(MaterialPageRoute(
builder: (context) => AlbumDetails(item.value)
));
},
onHold: () {
MenuSheet m = MenuSheet(context);
m.defaultAlbumMenu(item.value);
},
);
case HomePageItemType.ARTIST:
return ArtistTile(
item.value,
onTap: () {
Navigator.of(context).push(MaterialPageRoute(
builder: (context) => ArtistDetails(item.value)
));
},
onHold: () {
MenuSheet m = MenuSheet(context);
m.defaultArtistMenu(item.value);
},
);
case HomePageItemType.PLAYLIST:
return PlaylistCardTile(
item.value,
onTap: () {
Navigator.of(context).push(MaterialPageRoute(
builder: (context) => PlaylistDetails(item.value)
));
},
onHold: () {
MenuSheet m = MenuSheet(context);
m.defaultPlaylistMenu(item.value);
},
);
case HomePageItemType.CHANNEL:
return ChannelTile(
item.value,
onTap: () {
Navigator.of(context).push(MaterialPageRoute(
builder: (context) => Scaffold(
appBar: AppBar(title: Text(item.value.title.toString()),),
body: HomePageScreen(channel: item.value,),
)
));
},
);
}
return Container(height: 0, width: 0);
}
}