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60 lines
1.5 KiB
Dart
Executable File
60 lines
1.5 KiB
Dart
Executable File
import 'package:desktop_drop/desktop_drop.dart';
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import 'package:flutter/material.dart';
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class FileDropTarget extends StatefulWidget {
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final Widget child;
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final Function(List<int> filedata) onFileDropped;
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final Widget? overlay;
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const FileDropTarget({
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Key? key,
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required this.child,
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required this.onFileDropped,
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this.overlay,
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}) : super(key: key);
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@override
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State<StatefulWidget> createState() => _FileDropTargetState();
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}
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class _FileDropTargetState extends State<FileDropTarget> {
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bool _hovering = false;
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Widget _buildDefaultOverlay() => Positioned.fill(
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child: Container(
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color: Colors.blue.withOpacity(0.4),
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child: Icon(
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Icons.upload_file,
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size: 200,
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color: Colors.black.withOpacity(0.6),
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),
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),
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);
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@override
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Widget build(BuildContext context) => DropTarget(
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onDragEntered: (_) {
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setState(() {
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_hovering = true;
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});
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},
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onDragExited: (_) {
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setState(() {
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_hovering = false;
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});
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},
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onDragDone: (details) async {
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for (final file in details.files) {
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widget.onFileDropped(await file.readAsBytes());
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}
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},
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child: Stack(
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alignment: Alignment.center,
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children: [
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widget.child,
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if (_hovering) widget.overlay ?? _buildDefaultOverlay(),
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],
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),
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);
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}
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