provider yayy

lib/sftp_connection_list.dart

@@ -4,8 +4,10 @@ import 'package:flutter/material.dart';
 import 'package:flutter_secure_storage/flutter_secure_storage.dart';
 import 'package:fluxcloud/connection.dart';
 import 'package:fluxcloud/sftp_explorer.dart';
+import 'package:fluxcloud/sftp_provider.dart';
 import 'package:fluxcloud/sftp_worker.dart';
 import 'package:fluxcloud/widgets/add_server_modal.dart';
+import 'package:provider/provider.dart';
 
 class SftpConnectionList extends StatefulWidget {
   const SftpConnectionList({
@@ -80,7 +82,10 @@ class _SftpConnectionListState extends State<SftpConnectionList> {
                       onTap: () async {
                         final sftpWorker = await SftpWorker.spawn(_connections[index]);
                         if (context.mounted) {
-                          Navigator.push(context, MaterialPageRoute(builder: (context) => SftpExplorer(sftpWorker: sftpWorker,)));
+                          Navigator.push(context, MaterialPageRoute(builder: (context) => ChangeNotifierProvider(
+                            create: (_) => SftpProvider(sftpWorker),
+                            child: SftpExplorer()
+                          )));
                         }
                       },
                       borderRadius: BorderRadius.circular(10),

lib/sftp_explorer.dart

@@ -1,54 +1,16 @@
 import 'dart:io';
 
-import 'package:dartssh2/dartssh2.dart';
 import 'package:file_picker/file_picker.dart';
 import 'package:file_selector/file_selector.dart';
 import 'package:flutter/material.dart';
 import 'package:fluxcloud/main.dart';
-import 'package:fluxcloud/sftp_worker.dart';
+import 'package:fluxcloud/sftp_provider.dart';
+import 'package:provider/provider.dart';
 
 import 'widgets/operation_buttons.dart';
 
-class SftpExplorer extends StatefulWidget {
+class SftpExplorer extends StatelessWidget {
-  const SftpExplorer({super.key, required this.sftpWorker});
+  const SftpExplorer({super.key});
-
-  final SftpWorker sftpWorker;
-
-  @override
-  State<SftpExplorer> createState() => _SftpExplorerState();
-}
-
-class _SftpExplorerState extends State<SftpExplorer> {
-
-  String path = '/';
-
-  bool _isLoading = true;
-  late List<SftpName> _dirContents;
-
-  double? _uploadProgress;
-  double? _downloadProgress;
-
-  void _setDownloadProgress(double? progress) => setState(() => _downloadProgress = progress);
-  
-  @override
-  void initState() {
-    super.initState();
-    _listDir();
-  }
-
-  Future<void> _listDir() async {
-    setState(() => _isLoading = true);
-    try {
-      _dirContents =  await widget.sftpWorker.listdir(path);
-    }
-    catch (e) {
-      if (mounted) {
-        ScaffoldMessenger.of(context).showSnackBar(buildErrorSnackBar(context, e.toString()));
-      }
-    }
-    setState(() => _isLoading = false);
-  }
-
 
   @override
   Widget build(BuildContext context) {
@@ -60,25 +22,24 @@ class _SftpExplorerState extends State<SftpExplorer> {
         actionsPadding: EdgeInsets.only(right: 20),
         leading: IconButton(
           onPressed: () {
-            if (path == '/') {
+            if (context.read<SftpProvider>().path == '/') {
               // TODO: figure this out
               // Navigator.pop(context);
             }
             else {
-              path = path.substring(0, path.length - 1);
+              context.read<SftpProvider>().goToPrevDir();
-              path = path.substring(0, path.lastIndexOf('/')+1);
-              _listDir();
             }
           },
           icon: Icon(Icons.arrow_back)
         ),
         actions: [
-          if (_uploadProgress != null)
+          Selector<SftpProvider, double?>(
-          Stack(
+            selector: (_, sftpProvider) => sftpProvider.uploadProgress,
+            builder: (_, uploadProgress, __) => uploadProgress != null ? Stack(
               alignment: Alignment.center,
               children: [
                 TweenAnimationBuilder<double>(
-                tween: Tween(begin: 0, end: _uploadProgress),
+                  tween: Tween(begin: 0, end: uploadProgress),
                   duration: Duration(milliseconds: 300),
                   builder: (context, value, _) => CircularProgressIndicator(strokeWidth: 3, value: value,)
                 ),
@@ -89,13 +50,15 @@ class _SftpExplorerState extends State<SftpExplorer> {
                   icon: Icon(Icons.upload)
                 ),
               ]
+            ) : const SizedBox.shrink(),
           ),
-          if (_downloadProgress != null)
+          Selector<SftpProvider, double?>(
-          Stack(
+            selector: (_, sftpProvider) => sftpProvider.downloadProgress,
+            builder: (_, downloadProgress, __) => downloadProgress != null ? Stack(
               alignment: Alignment.center,
               children: [
                 TweenAnimationBuilder<double>(
-                tween: Tween(begin: 0, end: _downloadProgress),
+                  tween: Tween(begin: 0, end: downloadProgress),
                   duration: Duration(milliseconds: 300),
                   builder: (context, value, _) => CircularProgressIndicator(strokeWidth: 3, value: value,)
                 ),
@@ -106,6 +69,7 @@ class _SftpExplorerState extends State<SftpExplorer> {
                   icon: Icon(Icons.download)
                 ),
               ]
+            ) : const SizedBox.shrink(),
           ),
         ],
       ),
@@ -113,13 +77,12 @@ class _SftpExplorerState extends State<SftpExplorer> {
       body: PopScope(
         canPop: false,
         onPopInvokedWithResult: (_, _) {
-          if (path != '/') {
+          if (context.read<SftpProvider>().path != '/') {
-            path = path.substring(0, path.length - 1);
+            context.read<SftpProvider>().goToPrevDir();
-            path = path.substring(0, path.lastIndexOf('/')+1);
-            _listDir();
           }
         },
-        child: AnimatedSwitcher(
+        child: Consumer<SftpProvider>(
+          builder: (_, sftpProvider, __) => AnimatedSwitcher(
             duration: Duration(milliseconds: 300),
             transitionBuilder: (child, animation) {
               final curved = CurvedAnimation(
@@ -137,25 +100,25 @@ class _SftpExplorerState extends State<SftpExplorer> {
                 ),
               );
             },
-          child: _isLoading ? Center(child: CircularProgressIndicator()) : ListView.builder(
+            child: sftpProvider.isLoading ? Center(child: CircularProgressIndicator()) : ListView.builder(
-            key: ValueKey(path),
+              key: ValueKey(sftpProvider.path),
-            itemCount: _dirContents.length,
+              itemCount: sftpProvider.dirContents.length,
               itemBuilder: (context, index) {
-              final dirEntry = _dirContents[index];
+                final dirEntry = sftpProvider.dirContents[index];
                 return ListTile(
                   leading: Icon(dirEntry.attr.isDirectory ? Icons.folder : Icons.description),
                   title: Text(dirEntry.filename),
-                trailing: OperationButtons(sftpWorker: widget.sftpWorker, path: path, dirEntries: [dirEntry], listDir: _listDir, setDownloadProgress: _setDownloadProgress,),
+                  trailing: OperationButtons(dirEntries: [dirEntry],),
                   onTap: () {
                     if (dirEntry.attr.isDirectory) {
-                    path = '$path${dirEntry.filename}/';
+                      sftpProvider.goToDir('${sftpProvider.path}${dirEntry.filename}/');
-                    _listDir();
                     }
                   },
                 );
               }, 
             )
           ),
+        ),
       )
     );
   }
@@ -183,9 +146,10 @@ class _SftpExplorerState extends State<SftpExplorer> {
                   TextButton(onPressed: () => Navigator.pop(context), child: Text('Cancel')),
                   TextButton(
                     onPressed: () async {
+                      final sftpProvider = context.read<SftpProvider>();
                       try {
-                        await widget.sftpWorker.mkdir('$path${nameController.text}');
+                        await sftpProvider.sftpWorker.mkdir('${sftpProvider.path}${nameController.text}');
-                        _listDir();
+                        sftpProvider.listDir();
                       }
                       catch (e) {
                         if (context.mounted) {
@@ -207,6 +171,7 @@ class _SftpExplorerState extends State<SftpExplorer> {
         FloatingActionButton(
           heroTag: 'upload-file',
           onPressed: () async {
+            final sftpProvider = context.read<SftpProvider>();
             final List<String> filePaths;
             if (Platform.isAndroid | Platform.isIOS) {
               final res = await FilePicker.platform.pickFiles(allowMultiple: true);
@@ -218,10 +183,10 @@ class _SftpExplorerState extends State<SftpExplorer> {
             }
             for (final filePath in filePaths) {
               try {
-                await for (final progress in widget.sftpWorker.uploadFile(path, filePath)) {
+                await for (final progress in sftpProvider.sftpWorker.uploadFile(sftpProvider.path, filePath)) {
-                  setState(() => _uploadProgress = progress);
+                  sftpProvider.setUploadProgress(progress);
                 }
-                await _listDir();
+                await sftpProvider.listDir();
               }
               catch (e) {
                 if (context.mounted) {
@@ -229,8 +194,8 @@ class _SftpExplorerState extends State<SftpExplorer> {
                 }
               }
             }
-            setState(() => _uploadProgress = null);
+            sftpProvider.setUploadProgress(null);
-            _listDir();
+            sftpProvider.listDir();
           },
           child: Icon(Icons.upload),
         ),

lib/sftp_provider.dart

@@ -0,0 +1,57 @@
+import 'package:dartssh2/dartssh2.dart';
+import 'package:flutter/material.dart';
+import 'package:fluxcloud/sftp_worker.dart';
+
+class SftpProvider extends ChangeNotifier {
+  final SftpWorker _sftpWorker;
+
+  String _path = '/';
+  bool _isLoading = false;
+  late List<SftpName> _dirContents;
+
+  double? _uploadProgress;
+  double? _downloadProgress;
+
+  SftpProvider(this._sftpWorker) {
+    listDir();
+  }
+
+  SftpWorker get sftpWorker => _sftpWorker;
+
+  String get path => _path;
+  bool get isLoading => _isLoading;
+  List<SftpName> get dirContents  => _dirContents;
+
+  double? get uploadProgress => _uploadProgress;
+  double? get downloadProgress => _downloadProgress;
+  
+  Future<void> listDir() async {
+    _isLoading = true;
+    notifyListeners();
+    _dirContents =  await _sftpWorker.listdir(_path);
+    _isLoading = false;
+    notifyListeners();
+  }
+
+  void goToPrevDir() {
+    _path = _path.substring(0, _path.length - 1);
+    _path = _path.substring(0, _path.lastIndexOf('/')+1);
+    listDir();
+  }
+
+  void goToDir(String path) {
+    _path = path;
+    listDir();
+  }
+
+  void setUploadProgress(double? progress) {
+    _uploadProgress = progress;
+    notifyListeners();
+  }
+
+  void setDownloadProgress(double? progress) {
+    _downloadProgress = progress;
+    notifyListeners();
+  }
+
+}

lib/widgets/operation_buttons.dart

@@ -1,23 +1,20 @@
 import 'package:dartssh2/dartssh2.dart';
 import 'package:flutter/material.dart';
 import 'package:fluxcloud/main.dart';
-import 'package:fluxcloud/sftp_worker.dart';
+import 'package:fluxcloud/sftp_provider.dart';
 import 'package:path_provider/path_provider.dart';
+import 'package:provider/provider.dart';
 
 class OperationButtons extends StatelessWidget {
   const OperationButtons({
-    super.key,
+    super.key, required this.dirEntries,
-    required this.sftpWorker, required this.path, required this.dirEntries, required this.listDir, required this.setDownloadProgress,
   });
 
-  final SftpWorker sftpWorker;
-  final String path;
   final List<SftpName> dirEntries;
-  final Function listDir;
-  final Function(double? progress) setDownloadProgress;
 
   @override
   Widget build(BuildContext context) {
+    final sftpProvider = context.read<SftpProvider>();
     return Row(
       mainAxisSize: MainAxisSize.min,
       children: [
@@ -54,8 +51,8 @@ class OperationButtons extends StatelessWidget {
                   TextButton(
                     onPressed: () async {
                       try {
-                        await sftpWorker.rename('$path${dirEntry.filename}', '$path${newNameController.text}');
+                        await sftpProvider.sftpWorker.rename('${sftpProvider.path}${dirEntry.filename}', '${sftpProvider.path}${newNameController.text}');
-                        listDir();
+                        sftpProvider.listDir();
                       }
                       on SftpStatusError catch (e) {
                         if (context.mounted) {
@@ -97,14 +94,14 @@ class OperationButtons extends StatelessWidget {
                       onPressed: () async {
                         for (final dirEntry in dirEntries) {
                           try {
-                            await sftpWorker.remove(dirEntry, path);
+                            await sftpProvider.sftpWorker.remove(dirEntry, sftpProvider.path);
                           }
                           catch (e) {
                             if (context.mounted) {
                               ScaffoldMessenger.of(context).showSnackBar(buildErrorSnackBar(context, e.toString()));
                             }
                           }
-                          listDir();
+                          sftpProvider.listDir();
                           if (context.mounted) {
                             Navigator.pop(context);
                           }
@@ -125,8 +122,8 @@ class OperationButtons extends StatelessWidget {
             if (downloadsDir == null) return;
             for (final dirEntry in dirEntries) {
               try {
-                await for (final progress in sftpWorker.downloadFile(dirEntry, path, downloadsDir.path)) {
+                await for (final progress in sftpProvider.sftpWorker.downloadFile(dirEntry, sftpProvider.path, downloadsDir.path)) {
-                  setDownloadProgress(progress);
+                  sftpProvider.setDownloadProgress(progress);
                 }
               }
               catch (e) {
@@ -135,7 +132,7 @@ class OperationButtons extends StatelessWidget {
                 }
               }
             }
-            setDownloadProgress(null);
+            sftpProvider.setDownloadProgress(null);
           },
           icon: Icon(Icons.download)
         )

pubspec.lock

@@ -320,6 +320,14 @@ packages:
       url: "https://pub.dev"
     source: hosted
     version: "1.16.0"
+  nested:
+    dependency: transitive
+    description:
+      name: nested
+      sha256: "03bac4c528c64c95c722ec99280375a6f2fc708eec17c7b3f07253b626cd2a20"
+      url: "https://pub.dev"
+    source: hosted
+    version: "1.0.0"
   path:
     dependency: "direct main"
     description:
@@ -408,6 +416,14 @@ packages:
       url: "https://pub.dev"
     source: hosted
     version: "3.9.1"
+  provider:
+    dependency: "direct main"
+    description:
+      name: provider
+      sha256: "4abbd070a04e9ddc287673bf5a030c7ca8b685ff70218720abab8b092f53dd84"
+      url: "https://pub.dev"
+    source: hosted
+    version: "6.1.5"
   sky_engine:
     dependency: transitive
     description: flutter

pubspec.yaml

@@ -15,6 +15,7 @@ dependencies:
   path: ^1.9.1
   file_picker: ^10.2.0
   path_provider: ^2.1.5
+  provider: ^6.1.5
 
 dev_dependencies:
   flutter_test: