393 lines
13 KiB
Dart
393 lines
13 KiB
Dart
import 'dart:async';
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import 'package:audio_service/audio_service.dart';
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import 'package:custom_navigator/custom_navigator.dart';
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import 'package:flutter/material.dart';
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import 'package:flutter/rendering.dart';
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import 'package:flutter/services.dart';
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import 'package:flutter_localizations/flutter_localizations.dart';
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import 'package:freezer/api/cache.dart';
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import 'package:freezer/api/definitions.dart';
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import 'package:freezer/ui/library.dart';
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import 'package:freezer/ui/login_screen.dart';
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import 'package:freezer/ui/search.dart';
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import 'package:freezer/ui/updater.dart';
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import 'package:i18n_extension/i18n_widget.dart';
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import 'package:move_to_background/move_to_background.dart';
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import 'package:freezer/translations.i18n.dart';
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import 'package:quick_actions/quick_actions.dart';
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import 'package:uni_links/uni_links.dart';
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import 'api/deezer.dart';
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import 'api/download.dart';
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import 'api/player.dart';
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import 'settings.dart';
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import 'ui/home_screen.dart';
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import 'ui/player_bar.dart';
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Function updateTheme;
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Function logOut;
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GlobalKey<NavigatorState> mainNavigatorKey = GlobalKey<NavigatorState>();
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GlobalKey<NavigatorState> navigatorKey;
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void main() async {
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WidgetsFlutterBinding.ensureInitialized();
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//Initialize globals
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settings = await Settings().loadSettings();
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await downloadManager.init();
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cache = await Cache.load();
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//Do on BG
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playerHelper.authorizeLastFM();
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runApp(FreezerApp());
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}
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class FreezerApp extends StatefulWidget {
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@override
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_FreezerAppState createState() => _FreezerAppState();
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}
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class _FreezerAppState extends State<FreezerApp> {
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@override
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void initState() {
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//Make update theme global
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updateTheme = _updateTheme;
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_updateTheme();
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super.initState();
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}
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@override
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void dispose() {
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super.dispose();
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}
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void _updateTheme() {
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setState(() {
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settings.themeData;
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});
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SystemChrome.setSystemUIOverlayStyle(SystemUiOverlayStyle(
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systemNavigationBarColor: settings.themeData.bottomAppBarColor,
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systemNavigationBarIconBrightness: settings.isDark ? Brightness.light : Brightness.dark,
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));
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}
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Locale _locale() {
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if (settings.language == null || settings.language.split('_').length < 2) return null;
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return Locale(settings.language.split('_')[0], settings.language.split('_')[1]);
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}
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@override
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Widget build(BuildContext context) {
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return MaterialApp(
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title: 'Freezer',
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shortcuts: <LogicalKeySet, Intent>{
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...WidgetsApp.defaultShortcuts,
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LogicalKeySet(LogicalKeyboardKey.select): const ActivateIntent(), // DPAD center key, for remote controls
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},
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theme: settings.themeData,
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localizationsDelegates: [
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GlobalMaterialLocalizations.delegate,
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GlobalWidgetsLocalizations.delegate,
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GlobalCupertinoLocalizations.delegate,
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],
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supportedLocales: supportedLocales,
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home: WillPopScope(
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onWillPop: () async {
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//For some reason AudioServiceWidget caused the app to freeze after 2 back button presses. "fix"
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if (navigatorKey.currentState.canPop()) {
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await navigatorKey.currentState.maybePop();
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return false;
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}
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await MoveToBackground.moveTaskToBack();
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return false;
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},
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child: I18n(
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initialLocale: _locale(),
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child: LoginMainWrapper(),
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),
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),
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navigatorKey: mainNavigatorKey,
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);
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}
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}
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//Wrapper for login and main screen.
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class LoginMainWrapper extends StatefulWidget {
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@override
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_LoginMainWrapperState createState() => _LoginMainWrapperState();
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}
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class _LoginMainWrapperState extends State<LoginMainWrapper> {
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@override
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void initState() {
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if (settings.arl != null) {
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playerHelper.start();
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//Load token on background
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deezerAPI.arl = settings.arl;
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settings.offlineMode = true;
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deezerAPI.authorize().then((b) async {
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if (b) setState(() => settings.offlineMode = false);
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});
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}
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//Global logOut function
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logOut = _logOut;
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super.initState();
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}
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Future _logOut() async {
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setState(() {
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settings.arl = null;
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settings.offlineMode = true;
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deezerAPI = new DeezerAPI();
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});
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await settings.save();
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}
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@override
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Widget build(BuildContext context) {
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if (settings.arl == null)
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return LoginWidget(
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callback: () => setState(() => {}),
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);
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return MainScreen();
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}
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}
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class MainScreen extends StatefulWidget {
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@override
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_MainScreenState createState() => _MainScreenState();
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}
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class _MainScreenState extends State<MainScreen> with SingleTickerProviderStateMixin, WidgetsBindingObserver {
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List<Widget> _screens = [HomeScreen(), SearchScreen(), LibraryScreen()];
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int _selected = 0;
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StreamSubscription _urlLinkStream;
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int _keyPressed = 0;
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bool textFieldVisited = false;
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@override
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void initState() {
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navigatorKey = GlobalKey<NavigatorState>();
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_startStreamingServer();
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//Start with parameters
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_setupUniLinks();
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_loadPreloadInfo();
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_prepareQuickActions();
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//Check for updates on background
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Future.delayed(Duration(seconds: 5), () {
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FreezerVersions.checkUpdate();
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});
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super.initState();
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WidgetsBinding.instance.addObserver(this);
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}
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void _startStreamingServer() async {
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await DownloadManager.platform.invokeMethod("startServer", {"arl": settings.arl});
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}
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void _prepareQuickActions() {
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final QuickActions quickActions = QuickActions();
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quickActions.initialize((type) {
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if (type != null)
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_startPreload(type);
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});
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//Actions
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quickActions.setShortcutItems([
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ShortcutItem(type: 'favorites', localizedTitle: 'Favorites'.i18n, icon: 'ic_favorites'),
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ShortcutItem(type: 'flow', localizedTitle: 'Flow'.i18n, icon: 'ic_flow'),
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]);
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}
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void _startPreload(String type) async {
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await deezerAPI.authorize();
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if (type == 'flow') {
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await playerHelper.playFromSmartTrackList(SmartTrackList(id: 'flow'));
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return;
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}
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if (type == 'favorites') {
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Playlist p = await deezerAPI.fullPlaylist(deezerAPI.favoritesPlaylistId);
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playerHelper.playFromPlaylist(p, p.tracks[0].id);
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}
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}
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void _loadPreloadInfo() async {
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String info = await DownloadManager.platform.invokeMethod('getPreloadInfo');
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if (info != null) {
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//Used if started from android auto
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await deezerAPI.authorize();
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_startPreload(info);
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}
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}
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@override
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void dispose() {
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if (_urlLinkStream != null)
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_urlLinkStream.cancel();
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WidgetsBinding.instance.removeObserver(this);
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super.dispose();
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}
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@override
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void didChangeAppLifecycleState(AppLifecycleState state) {
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if (state == AppLifecycleState.resumed) {
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setState(() {
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textFieldVisited = false;
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});
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}
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}
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void _setupUniLinks() async {
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//Listen to URLs
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_urlLinkStream = getUriLinksStream().listen((Uri uri) {
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openScreenByURL(context, uri.toString());
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}, onError: (err) {});
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//Get initial link on cold start
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try {
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String link = await getInitialLink();
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if (link != null && link.length > 4)
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openScreenByURL(context, link);
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} catch (e) {}
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}
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ValueChanged<RawKeyEvent> _handleKey(FocusScopeNode navigationBarFocusNode, FocusNode screenFocusNode){
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return (event) {
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FocusNode primaryFocus = FocusManager.instance.primaryFocus;
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// After visiting text field, something goes wrong and KeyDown events are not sent, only KeyUp-s.
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// So, set this flag to indicate a transition to other "mode"
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if (primaryFocus.context.widget.runtimeType.toString() == 'EditableText') {
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setState(() {
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textFieldVisited = true;
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});
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}
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// Movement to navigation bar and back
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if (event.runtimeType.toString() == (textFieldVisited ? 'RawKeyUpEvent' : 'RawKeyDownEvent')) {
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int keyCode = (event.data as RawKeyEventDataAndroid).keyCode;
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switch (keyCode) {
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case 127: // Menu on Android TV
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case 327: // EPG on Hisense TV
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focusToNavbar(navigationBarFocusNode);
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break;
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case 22: // LEFT + RIGHT
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case 21:
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if (_keyPressed == 21 && keyCode == 22 || _keyPressed == 22 && keyCode == 21) {
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focusToNavbar(navigationBarFocusNode);
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}
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_keyPressed = keyCode;
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Future.delayed(Duration(milliseconds: 100), () => {
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_keyPressed = 0
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});
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break;
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case 20: // DOWN
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// If it's bottom row, go to navigation bar
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var row = primaryFocus.parent;
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if (row != null) {
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var column = row.parent;
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if (column.children.last == row) {
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focusToNavbar(navigationBarFocusNode);
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}
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}
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break;
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case 19: // UP
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if (navigationBarFocusNode.hasFocus) {
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screenFocusNode.parent.parent.children.last // children.last is used for handling "playlists" screen in library. Under CustomNavigator 2 screens appears.
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.nextFocus(); // nextFocus is used instead of requestFocus because it focuses on last, bottom, non-visible tile of main page
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}
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break;
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}
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}
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// After visiting text field, something goes wrong and KeyDown events are not sent, only KeyUp-s.
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// Focus moving works only on KeyDown events, so here we simulate keys handling as it's done in Flutter
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if (textFieldVisited && event.runtimeType.toString() == 'RawKeyUpEvent') {
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Map<LogicalKeySet, Intent> shortcuts = Shortcuts.of(context).shortcuts;
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final BuildContext primaryContext = primaryFocus?.context;
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Intent intent = shortcuts[LogicalKeySet(event.logicalKey)];
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if (intent != null) {
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Actions.invoke(primaryContext, intent, nullOk: true);
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}
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// WA for "Search field -> navigator -> UP -> DOWN" case. Prevents focus hanging.
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FocusNode newFocus = FocusManager.instance.primaryFocus;
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if (newFocus is FocusScopeNode) {
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navigationBarFocusNode.requestFocus();
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}
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}
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};
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}
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void focusToNavbar(FocusScopeNode navigatorFocusNode) {
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navigatorFocusNode.requestFocus();
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navigatorFocusNode.focusInDirection(TraversalDirection.down); // If player bar is hidden, focus won't be visible, so go down once more
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}
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@override
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Widget build(BuildContext context) {
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FocusScopeNode navigationBarFocusNode = FocusScopeNode(); // for bottom navigation bar
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FocusNode screenFocusNode = FocusNode(); // for CustomNavigator
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return RawKeyboardListener(
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focusNode: FocusNode(),
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onKey: _handleKey(navigationBarFocusNode, screenFocusNode),
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child: Scaffold(
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bottomNavigationBar:
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FocusScope(
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node: navigationBarFocusNode,
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child: Column(
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mainAxisSize: MainAxisSize.min,
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children: <Widget>[
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PlayerBar(),
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BottomNavigationBar(
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backgroundColor: Theme.of(context).bottomAppBarColor,
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currentIndex: _selected,
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onTap: (int s) async {
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//Pop all routes until home screen
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while (navigatorKey.currentState.canPop()) {
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await navigatorKey.currentState.maybePop();
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}
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await navigatorKey.currentState.maybePop();
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setState(() {
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_selected = s;
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});
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},
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selectedItemColor: Theme.of(context).primaryColor,
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items: <BottomNavigationBarItem>[
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BottomNavigationBarItem(
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icon: Icon(Icons.home),
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title: Text('Home'.i18n)),
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BottomNavigationBarItem(
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icon: Icon(Icons.search),
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title: Text('Search'.i18n),
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),
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BottomNavigationBarItem(
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icon: Icon(Icons.library_music),
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title: Text('Library'.i18n))
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],
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)
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],
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)),
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body: AudioServiceWidget(
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child: CustomNavigator(
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navigatorKey: navigatorKey,
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home: Focus(
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focusNode: screenFocusNode,
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skipTraversal: true,
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canRequestFocus: false,
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child: _screens[_selected]
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),
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pageRoute: PageRoutes.materialPageRoute
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),
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)));
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}
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}
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