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Implemented import flow in example application
Minor documentation improvements
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,148 @@ | ||
| import 'dart:async'; | ||
| import 'dart:io'; | ||
|
|
||
| import 'package:file_picker/file_picker.dart'; | ||
| import 'package:flutter/material.dart'; | ||
| import 'package:flutter_map_tile_caching/flutter_map_tile_caching.dart'; | ||
|
|
||
| import 'stages/complete.dart'; | ||
| import 'stages/error.dart'; | ||
| import 'stages/loading.dart'; | ||
| import 'stages/progress.dart'; | ||
| import 'stages/selection.dart'; | ||
|
|
||
| class ImportPopup extends StatefulWidget { | ||
| const ImportPopup({super.key}); | ||
|
|
||
| static const String route = '/import'; | ||
|
|
||
| static Future<void> start(BuildContext context) async { | ||
| final pickerResult = Platform.isAndroid || Platform.isIOS | ||
| ? FilePicker.platform.pickFiles() | ||
| : FilePicker.platform.pickFiles( | ||
| dialogTitle: 'Import Archive', | ||
| type: FileType.custom, | ||
| allowedExtensions: ['fmtc'], | ||
| ); | ||
| final filePath = (await pickerResult)?.paths.single; | ||
|
|
||
| if (filePath == null || !context.mounted) return; | ||
|
|
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| await Navigator.of(context).pushNamed( | ||
| ImportPopup.route, | ||
| arguments: filePath, | ||
| ); | ||
| } | ||
|
|
||
| @override | ||
| State<ImportPopup> createState() => _ImportPopupState(); | ||
| } | ||
|
|
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| class _ImportPopupState extends State<ImportPopup> { | ||
| RootExternal? fmtcExternal; | ||
|
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||
| int stage = 1; | ||
|
|
||
| late Object error; // Stage 0 | ||
|
|
||
| late Map<String, bool> availableStores; // Stage 1 -> 2 | ||
|
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| late Set<String> selectedStores; // Stage 2 -> 3 | ||
| late ImportConflictStrategy conflictStrategy; // Stage 2 -> 3 | ||
|
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| late int importTilesResult; // Stage 3 -> 4 | ||
| late Duration importDuration; // Stage 3 -> 4 | ||
|
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| @override | ||
| void didChangeDependencies() { | ||
| super.didChangeDependencies(); | ||
|
|
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| fmtcExternal ??= FMTCRoot.external( | ||
| pathToArchive: ModalRoute.of(context)!.settings.arguments! as String, | ||
| ); | ||
| } | ||
|
|
||
| @override | ||
| Widget build(BuildContext context) => PopScope( | ||
| canPop: stage != 3, | ||
| onPopInvokedWithResult: (didPop, _) { | ||
| if (!didPop) { | ||
| ScaffoldMessenger.of(context).showSnackBar( | ||
| const SnackBar( | ||
| content: Text( | ||
| "We don't recommend leaving this screen while the import is " | ||
| 'in progress', | ||
| ), | ||
| ), | ||
| ); | ||
| } | ||
| }, | ||
| child: Scaffold( | ||
| appBar: AppBar( | ||
| title: const Text('Import Archive'), | ||
| automaticallyImplyLeading: stage != 3, | ||
| elevation: 1, | ||
| ), | ||
| body: AnimatedSwitcher( | ||
| duration: const Duration(milliseconds: 300), | ||
| switchInCurve: Curves.easeInOut, | ||
| switchOutCurve: Curves.easeInOut, | ||
| transitionBuilder: (child, animation) => SlideTransition( | ||
| position: (animation.value == 1 | ||
| ? Tween(begin: const Offset(-1, 0), end: Offset.zero) | ||
| : Tween(begin: const Offset(1, 0), end: Offset.zero)) | ||
| .animate(animation), | ||
| child: child, | ||
| ), | ||
| child: switch (stage) { | ||
| 0 => ImportErrorStage(error: error), | ||
| 1 => ImportLoadingStage( | ||
| fmtcExternal: fmtcExternal!, | ||
| nextStage: Completer() | ||
| ..future.then( | ||
| (availableStores) => setState(() { | ||
| this.availableStores = availableStores; | ||
| stage++; | ||
| }), | ||
| onError: (err) => setState(() { | ||
| error = err; | ||
| stage = 0; | ||
| }), | ||
| ), | ||
| ), | ||
| 2 => ImportSelectionStage( | ||
| fmtcExternal: fmtcExternal!, | ||
| availableStores: availableStores, | ||
| nextStage: (selectedStores, conflictStrategy) => setState(() { | ||
| this.selectedStores = selectedStores; | ||
| this.conflictStrategy = conflictStrategy; | ||
| stage++; | ||
| }), | ||
| ), | ||
| 3 => ImportProgressStage( | ||
| fmtcExternal: fmtcExternal!, | ||
| selectedStores: selectedStores, | ||
| conflictStrategy: conflictStrategy, | ||
| nextStage: Completer() | ||
| ..future.then( | ||
| (result) => setState(() { | ||
| importTilesResult = result.tiles; | ||
| importDuration = result.duration; | ||
| stage++; | ||
| }), | ||
| onError: (err) => setState(() { | ||
| error = err; | ||
| stage = 0; | ||
| }), | ||
| ), | ||
| ), | ||
| 4 => ImportCompleteStage( | ||
| tiles: importTilesResult, | ||
| duration: importDuration, | ||
| ), | ||
| _ => throw UnimplementedError(), | ||
| }, | ||
| ), | ||
| ), | ||
| ); | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,45 @@ | ||
| import 'package:flutter/material.dart'; | ||
|
|
||
| class ImportCompleteStage extends StatelessWidget { | ||
| const ImportCompleteStage({ | ||
| super.key, | ||
| required this.tiles, | ||
| required this.duration, | ||
| }); | ||
|
|
||
| final int tiles; | ||
| final Duration duration; | ||
|
|
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| @override | ||
| Widget build(BuildContext context) => Center( | ||
| child: Column( | ||
| mainAxisAlignment: MainAxisAlignment.center, | ||
| children: [ | ||
| DecoratedBox( | ||
| decoration: BoxDecoration( | ||
| borderRadius: BorderRadius.circular(99), | ||
| color: Colors.green, | ||
| ), | ||
| child: const Padding( | ||
| padding: EdgeInsets.all(12), | ||
| child: Icon(Icons.done_all, size: 48, color: Colors.white), | ||
| ), | ||
| ), | ||
| const SizedBox(height: 16), | ||
| Text( | ||
| 'Successfully imported $tiles tiles in $duration!', | ||
| style: Theme.of(context).textTheme.titleLarge, | ||
| textAlign: TextAlign.center, | ||
| ), | ||
| const SizedBox(height: 24), | ||
| FilledButton( | ||
| onPressed: () => Navigator.of(context).pop(), | ||
| child: const Text( | ||
| 'Exit', | ||
| textAlign: TextAlign.center, | ||
| ), | ||
| ), | ||
| ], | ||
| ), | ||
| ); | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,49 @@ | ||
| import 'package:flutter/material.dart'; | ||
|
|
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| class ImportErrorStage extends StatelessWidget { | ||
| const ImportErrorStage({super.key, required this.error}); | ||
|
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| final Object error; | ||
|
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| @override | ||
| Widget build(BuildContext context) => Center( | ||
| child: Column( | ||
| mainAxisAlignment: MainAxisAlignment.center, | ||
| children: [ | ||
| const Icon(Icons.broken_image, size: 48), | ||
| const SizedBox(height: 6), | ||
| Text( | ||
| "Whoops, looks like we couldn't handle that file", | ||
| style: Theme.of(context).textTheme.headlineSmall, | ||
| textAlign: TextAlign.center, | ||
| ), | ||
| const SizedBox(height: 4), | ||
| const Text( | ||
| "Ensure you selected the correct file, that it hasn't " | ||
| 'been modified, and that it was exported from the same ' | ||
| 'version of FMTC.', | ||
| textAlign: TextAlign.center, | ||
| ), | ||
| const SizedBox(height: 16), | ||
| SelectableText( | ||
| 'Type: ${error.runtimeType}', | ||
| style: Theme.of(context).textTheme.bodyLarge, | ||
| textAlign: TextAlign.center, | ||
| ), | ||
| SelectableText( | ||
| 'Error: $error', | ||
| style: Theme.of(context).textTheme.bodyMedium, | ||
| textAlign: TextAlign.center, | ||
| ), | ||
| const SizedBox(height: 32), | ||
| FilledButton( | ||
| onPressed: () => Navigator.of(context).pop(), | ||
| child: const Text( | ||
| 'Cancel', | ||
| textAlign: TextAlign.center, | ||
| ), | ||
| ), | ||
| ], | ||
| ), | ||
| ); | ||
| } |
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