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Add a drop zone on the user profile picture dialog for users to drop …
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turms-chat-demo-flutter/lib/ui/desktop/components/t_drop_zone/t_drop_zone.dart
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,130 @@ | ||
| import 'dart:async'; | ||
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||
| import 'package:dotted_border/dotted_border.dart'; | ||
| import 'package:flutter/material.dart'; | ||
| import 'package:flutter_riverpod/flutter_riverpod.dart'; | ||
| import 'package:super_clipboard/super_clipboard.dart'; | ||
| import 'package:super_drag_and_drop/super_drag_and_drop.dart'; | ||
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| import '../../../l10n/app_localizations.dart'; | ||
| import '../../../l10n/view_models/app_localizations_view_model.dart'; | ||
| import '../../../themes/app_theme_extension.dart'; | ||
| import '../../../themes/sizes.dart'; | ||
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| class TDropZone extends ConsumerStatefulWidget { | ||
| const TDropZone( | ||
| {super.key, | ||
| required this.formats, | ||
| this.onDropOver, | ||
| required this.onPerformDrop, | ||
| this.onDropEnter, | ||
| this.onDropLeave, | ||
| this.onDropEnded, | ||
| required this.child}); | ||
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| final List<DataFormat> formats; | ||
| final FutureOr<DropOperation> Function(DropOverEvent)? onDropOver; | ||
| final Future<void> Function(PerformDropEvent) onPerformDrop; | ||
| final void Function(DropEvent)? onDropEnter; | ||
| final void Function(DropEvent)? onDropLeave; | ||
| final void Function(DropEvent)? onDropEnded; | ||
| final Widget child; | ||
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| @override | ||
| ConsumerState createState() => _TDropZoneState(); | ||
| } | ||
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| class _TDropZoneState extends ConsumerState<TDropZone> { | ||
| bool _dragging = false; | ||
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| @override | ||
| Widget build(BuildContext context) { | ||
| final theme = context.theme; | ||
| final appLocalizations = ref.watch(appLocalizationsViewModel); | ||
| return Stack( | ||
| children: [ | ||
| DropRegion( | ||
| formats: widget.formats, | ||
| onDropOver: widget.onDropOver ?? _onDropOver, | ||
| onDropEnter: _onDropEnter, | ||
| onDropLeave: _onDropLeave, | ||
| onPerformDrop: widget.onPerformDrop, | ||
| child: Padding( | ||
| padding: Sizes.paddingV8H16, | ||
| child: widget.child, | ||
| )), | ||
| _buildMask(theme, appLocalizations) | ||
| ], | ||
| ); | ||
| } | ||
|
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| IgnorePointer _buildMask(ThemeData theme, AppLocalizations localizations) => | ||
| // Ignore pointer to not obstruct "DropRegion" | ||
| IgnorePointer( | ||
| child: AnimatedOpacity( | ||
| opacity: _dragging ? 1.0 : 0.0, | ||
| duration: const Duration(milliseconds: 100), | ||
| child: Padding( | ||
| padding: const EdgeInsets.only(right: 4, bottom: 4), | ||
| child: DottedBorder( | ||
| borderType: BorderType.RRect, | ||
| dashPattern: [12, 10], | ||
| color: theme.primaryColor, | ||
| strokeWidth: 2, | ||
| radius: const Radius.circular(8), | ||
| child: ClipRRect( | ||
| child: ColoredBox( | ||
| color: Colors.white.withValues(alpha: 0.6), | ||
| child: Center( | ||
| child: Text( | ||
| localizations.dropFilesHere, | ||
| style: TextStyle(color: theme.primaryColor), | ||
| ), | ||
| ), | ||
| ), | ||
| ), | ||
| ), | ||
| ))); | ||
|
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| DropOperation _onDropOver(DropOverEvent event) => | ||
| event.session.allowedOperations.contains(DropOperation.copy) | ||
| ? DropOperation.copy | ||
| : DropOperation.none; | ||
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| void _onDropEnter(DropEvent event) { | ||
| _dragging = true; | ||
| widget.onDropEnter?.call(event); | ||
| setState(() {}); | ||
| } | ||
|
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| void _onDropLeave(DropEvent event) { | ||
| _dragging = false; | ||
| widget.onDropLeave?.call(event); | ||
| setState(() {}); | ||
| } | ||
| } | ||
|
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| extension DropSessionExtensions on DropSession { | ||
| Future<List<DataReaderFile>> readFiles( | ||
| {bool includeDirectories = false}) async { | ||
| final futures = items.map((item) { | ||
| final completer = Completer<DataReaderFile>(); | ||
| try { | ||
| item.dataReader!.getFile(null, completer.complete, | ||
| onError: completer.completeError); | ||
| } catch (e) { | ||
| completer.completeError(e); | ||
| } | ||
| return completer.future; | ||
| }); | ||
| final files = await Future.wait(futures); | ||
| if (includeDirectories) { | ||
| return files; | ||
| } | ||
| return files | ||
| .where((file) => | ||
| // The size of directory is null | ||
| file.fileSize != null) | ||
| .toList(); | ||
| } | ||
| } |
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