Implemented simple and basic file downloading

.idea/libraries/Flutter_Plugins.xml

@@ -1,27 +1,27 @@
 <component name="libraryTable">
   <library name="Flutter Plugins" type="FlutterPluginsLibraryType">
     <CLASSES>
-      <root url="file:///opt/flutter/.pub-cache/hosted/pub.dev/url_launcher_web-2.0.16" />
+      <root url="file://$USER_HOME$/.pub-cache/hosted/pub.dev/url_launcher_web-2.0.16" />
-      <root url="file:///opt/flutter/.pub-cache/hosted/pub.dev/path_provider_windows-2.1.5" />
+      <root url="file://$USER_HOME$/.pub-cache/hosted/pub.dev/url_launcher_android-6.0.25" />
-      <root url="file:///opt/flutter/.pub-cache/hosted/pub.dev/shared_preferences_linux-2.1.5" />
+      <root url="file://$USER_HOME$/.pub-cache/hosted/pub.dev/url_launcher_linux-3.0.4" />
-      <root url="file:///opt/flutter/.pub-cache/hosted/pub.dev/path_provider_linux-2.1.10" />
+      <root url="file://$USER_HOME$/.pub-cache/hosted/pub.dev/shared_preferences-2.0.18" />
-      <root url="file:///opt/flutter/.pub-cache/hosted/pub.dev/path_provider_foundation-2.1.3" />
+      <root url="file://$USER_HOME$/.pub-cache/hosted/pub.dev/url_launcher_macos-3.0.4" />
-      <root url="file:///opt/flutter/.pub-cache/hosted/pub.dev/path_provider_android-2.0.24" />
+      <root url="file://$USER_HOME$/.pub-cache/hosted/pub.dev/path_provider_android-2.0.24" />
-      <root url="file:///opt/flutter/.pub-cache/hosted/pub.dev/url_launcher_android-6.0.25" />
+      <root url="file://$USER_HOME$/.pub-cache/hosted/pub.dev/url_launcher_windows-3.0.5" />
-      <root url="file:///opt/flutter/.pub-cache/hosted/pub.dev/shared_preferences_foundation-2.1.5" />
+      <root url="file://$USER_HOME$/.pub-cache/hosted/pub.dev/url_launcher_ios-6.1.2" />
-      <root url="file:///opt/flutter/.pub-cache/hosted/pub.dev/shared_preferences_windows-2.1.5" />
+      <root url="file://$USER_HOME$/.pub-cache/hosted/pub.dev/path_provider_foundation-2.1.3" />
-      <root url="file:///opt/flutter/.pub-cache/hosted/pub.dev/url_launcher_macos-3.0.4" />
+      <root url="file://$USER_HOME$/.pub-cache/hosted/pub.dev/path_provider_linux-2.1.10" />
-      <root url="file:///opt/flutter/.pub-cache/hosted/pub.dev/shared_preferences_web-2.0.6" />
+      <root url="file://$USER_HOME$/.pub-cache/hosted/pub.dev/url_launcher-6.1.10" />
-      <root url="file:///opt/flutter/.pub-cache/hosted/pub.dev/url_launcher_windows-3.0.5" />
+      <root url="file://$USER_HOME$/.pub-cache/hosted/pub.dev/shared_preferences_linux-2.1.5" />
-      <root url="file:///opt/flutter/.pub-cache/hosted/pub.dev/url_launcher_ios-6.1.2" />
+      <root url="file://$USER_HOME$/.pub-cache/hosted/pub.dev/shared_preferences_foundation-2.1.5" />
-      <root url="file:///opt/flutter/.pub-cache/hosted/pub.dev/url_launcher_linux-3.0.4" />
+      <root url="file://$USER_HOME$/.pub-cache/hosted/pub.dev/sqflite-2.2.5" />
-      <root url="file:///opt/flutter/.pub-cache/hosted/pub.dev/shared_preferences_android-2.0.17" />
+      <root url="file://$USER_HOME$/.pub-cache/hosted/pub.dev/shared_preferences_android-2.0.17" />
-      <root url="file:///opt/flutter/.pub-cache/hosted/pub.dev/shared_preferences-2.0.18" />
+      <root url="file://$USER_HOME$/.pub-cache/hosted/pub.dev/path_provider_windows-2.1.5" />
-      <root url="file:///opt/flutter/.pub-cache/hosted/pub.dev/path_provider-2.0.13" />
+      <root url="file://$USER_HOME$/.pub-cache/hosted/pub.dev/shared_preferences_windows-2.1.5" />
-      <root url="file:///opt/flutter/.pub-cache/hosted/pub.dev/sqflite-2.2.5" />
+      <root url="file://$USER_HOME$/.pub-cache/hosted/pub.dev/path_provider-2.0.13" />
-      <root url="file:///opt/flutter/.pub-cache/hosted/pub.dev/open_file-2.1.1" />
+      <root url="file://$USER_HOME$/.pub-cache/hosted/pub.dev/shared_preferences_web-2.0.6" />
-      <root url="file:///opt/flutter/.pub-cache/hosted/pub.dev/flutter_native_splash-2.2.16" />
+      <root url="file://$USER_HOME$/.pub-cache/hosted/pub.dev/better_open_file-3.6.4" />
-      <root url="file:///opt/flutter/.pub-cache/hosted/pub.dev/url_launcher-6.1.10" />
+      <root url="file://$USER_HOME$/.pub-cache/hosted/pub.dev/flutter_native_splash-2.2.19" />
     </CLASSES>
     <JAVADOC />
     <SOURCES />

lib/api/marianumcloud/webdav/queries/downloadFile/downloadFile.dart

@@ -0,0 +1,21 @@
+
+import 'package:marianum_mobile/api/apiResponse.dart';
+import 'package:marianum_mobile/api/marianumcloud/webdav/queries/downloadFile/downloadFileParams.dart';
+import 'package:marianum_mobile/api/marianumcloud/webdav/webdavApi.dart';
+
+class DownloadFile extends WebdavApi<DownloadFileParams> {
+  DownloadFileParams params;
+
+  DownloadFile(this.params) : super(params);
+
+  @override
+  Future<ApiResponse> run() async {
+
+    // final file = await File(localPath).create();
+    // Uint8List downloadedFile = await (await WebdavApi.webdav).download(params.webdavPath);
+    // file.writeAsBytesSync(downloadedFile, flush: true, mode: FileMode.write);
+    //
+    // OpenFile.open(localPath);
+    throw UnimplementedError();
+  }
+}

lib/api/marianumcloud/webdav/queries/downloadFile/downloadFileParams.dart

@@ -0,0 +1,16 @@
+import 'package:json_annotation/json_annotation.dart';
+import 'package:marianum_mobile/api/apiParams.dart';
+
+part 'downloadFileParams.g.dart';
+
+@JsonSerializable()
+class DownloadFileParams extends ApiParams {
+  String webdavSourcePath;
+  String localTargetPath;
+  String filename;
+
+  DownloadFileParams(this.webdavSourcePath, this.localTargetPath, this.filename);
+
+  factory DownloadFileParams.fromJson(Map<String, dynamic> json) => _$DownloadFileParamsFromJson(json);
+  Map<String, dynamic> toJson() => _$DownloadFileParamsToJson(this);
+}

lib/api/marianumcloud/webdav/queries/downloadFile/downloadFileParams.g.dart

@@ -0,0 +1,21 @@
+// GENERATED CODE - DO NOT MODIFY BY HAND
+
+part of 'downloadFileParams.dart';
+
+// **************************************************************************
+// JsonSerializableGenerator
+// **************************************************************************
+
+DownloadFileParams _$DownloadFileParamsFromJson(Map<String, dynamic> json) =>
+    DownloadFileParams(
+      json['webdavSourcePath'] as String,
+      json['localTargetPath'] as String,
+      json['filename'] as String,
+    );
+
+Map<String, dynamic> _$DownloadFileParamsToJson(DownloadFileParams instance) =>
+    <String, dynamic>{
+      'webdavSourcePath': instance.webdavSourcePath,
+      'localTargetPath': instance.localTargetPath,
+      'filename': instance.filename,
+    };

lib/api/marianumcloud/webdav/queries/downloadFile/downloadFileResponse.dart

@@ -0,0 +1,14 @@
+
+import 'package:json_annotation/json_annotation.dart';
+
+part 'downloadFileResponse.g.dart';
+
+@JsonSerializable()
+class DownloadFileResponse {
+  String path;
+
+  DownloadFileResponse(this.path);
+
+  factory DownloadFileResponse.fromJson(Map<String, dynamic> json) => _$DownloadFileResponseFromJson(json);
+  Map<String, dynamic> toJson() => _$DownloadFileResponseToJson(this);
+}

lib/api/marianumcloud/webdav/queries/downloadFile/downloadFileResponse.g.dart

@@ -0,0 +1,19 @@
+// GENERATED CODE - DO NOT MODIFY BY HAND
+
+part of 'downloadFileResponse.dart';
+
+// **************************************************************************
+// JsonSerializableGenerator
+// **************************************************************************
+
+DownloadFileResponse _$DownloadFileResponseFromJson(
+        Map<String, dynamic> json) =>
+    DownloadFileResponse(
+      json['path'] as String,
+    );
+
+Map<String, dynamic> _$DownloadFileResponseToJson(
+        DownloadFileResponse instance) =>
+    <String, dynamic>{
+      'path': instance.path,
+    };

lib/api/marianumcloud/webdav/webdavApi.dart

@@ -14,10 +14,17 @@ abstract class WebdavApi<T> extends ApiRequest {
   Future<ApiResponse> run();
 
   static Future<WebDavClient> webdav = establishWebdavConnection();
+  static Future<String> webdavConnectString = buildWebdavConnectString();
 
   static Future<WebDavClient> establishWebdavConnection() async {
     SharedPreferences preferences = await SharedPreferences.getInstance();
 
     return NextcloudClient("https://cloud.marianum-fulda.de/", username: preferences.getString("username"), password: preferences.getString("password"), loginName: preferences.getString("username")).webdav;
   }
+
+  static Future<String> buildWebdavConnectString() async {
+    SharedPreferences preferences = await SharedPreferences.getInstance();
+
+    return "https://${preferences.getString("username")}:${preferences.getString("password")}@cloud.marianum-fulda.de/remote.php/dav/files/${preferences.getString("username")}/";
+  }
 }

lib/data/files/filesProps.dart

@@ -1,3 +1,4 @@
+
 import 'package:marianum_mobile/api/apiResponse.dart';
 import 'package:marianum_mobile/api/marianumcloud/webdav/queries/listFiles/listFilesCache.dart';
 import 'package:marianum_mobile/api/marianumcloud/webdav/queries/listFiles/listFilesResponse.dart';

lib/screen/pages/files/fileDownload.dart

@@ -0,0 +1,89 @@
+import 'dart:developer';
+import 'dart:io';
+
+import 'package:flowder/flowder.dart';
+import 'package:flutter/cupertino.dart';
+import 'package:flutter/material.dart';
+import 'package:marianum_mobile/api/marianumcloud/webdav/webdavApi.dart';
+import 'package:path_provider/path_provider.dart';
+
+class FileDownload extends StatefulWidget {
+  String source;
+  String name;
+  FileDownload(this.source, this.name, {Key? key}) : super(key: key);
+
+  @override
+  State<FileDownload> createState() => _FileDownloadState();
+}
+
+class _FileDownloadState extends State<FileDownload> {
+  late DownloaderCore core;
+
+  void download(String remotePath, String name) async {
+    List<Directory>? paths = await getExternalStorageDirectories(type: StorageDirectory.downloads);
+
+    String local = paths!.first.path + Platform.pathSeparator + name;
+
+    DownloaderUtils options = DownloaderUtils(
+      progressCallback: (current, total) {
+        final progress = (current / total) * 100;
+        setState(() => {
+          percent = progress,
+        });
+      },
+      file: File(local),
+      progress: ProgressImplementation(),
+      deleteOnCancel: true,
+      onDone: () {
+        // OpenFile.open(local).then((value) => () {
+        //   log("Result: ${value.toString()}");
+        // });
+        Navigator.of(context).pop();
+        showDialog(context: context, builder: (context) {
+          return AlertDialog(
+            icon: const Icon(Icons.link),
+            title: const Text("Dateipfad"),
+            content: Text(local),
+          );
+        });
+      },
+    );
+
+    log(local);
+
+    core = await Flowder.download(
+      "${await WebdavApi.webdavConnectString}$remotePath",
+      options,
+    );
+  }
+
+  double percent = 0;
+
+  @override
+  void initState() {
+    super.initState();
+    log("Downloading file: Source(${widget.source}), Name(${widget.name})");
+    download(widget.source, widget.name);
+  }
+  
+  @override
+  Widget build(BuildContext context) {
+    return AlertDialog(
+      title: const Text("Download"),
+      content: ListTile(
+        leading: const Icon(Icons.download),
+        title: LinearProgressIndicator(value: percent/100),
+        trailing: Text("${percent.round()}%"),
+      ),
+      actions: [
+        TextButton(
+          child: const Text("Abbrechen"),
+          onPressed: () => () {
+            if(!core.isCancelled) core.cancel();
+            Navigator.of(context, rootNavigator: true).pop();
+          },
+        )
+      ],
+    );
+  }
+}

lib/screen/pages/files/files.dart

@@ -1,7 +1,10 @@
+import 'dart:developer';
+
 import 'package:filesize/filesize.dart';
 import 'package:flutter/material.dart';
 import 'package:jiffy/jiffy.dart';
 import 'package:marianum_mobile/api/marianumcloud/webdav/queries/listFiles/cacheableFile.dart';
+import 'package:marianum_mobile/screen/pages/files/fileDownload.dart';
 import 'package:marianum_mobile/widget/errorView.dart';
 import 'package:provider/provider.dart';
 
@@ -66,11 +69,10 @@ class _FilesState extends State<Files> {
                   props.enterFolder(file.name);
                 } else {
                   //TODO implement file download / view
+                  log(file.path);
+
                   showDialog(context: context, builder: (context) {
-                    return const AlertDialog(
+                    return FileDownload(file.path, file.name);
-                      title: Text("Datei öffnen"),
-                      content: Text("Das öffnen von Dateien ist noch nicht implementiert!"),
-                    );
                   });
                 }
               },

pubspec.yaml

@@ -51,14 +51,17 @@ dependencies:
     git:
       url: https://github.com/provokateurin/nextcloud-neon
       path: packages/nextcloud
-  flutter_launcher_icons: ^0.11.0
+  flutter_launcher_icons: ^0.12.0
   pretty_json: ^2.0.0
   cached_network_image: ^3.2.3
-  open_file: ^2.1.1
-  flowder: ^0.2.0
   url_launcher: ^6.1.10
   flutter_linkify: ^5.0.2
   filesize: ^2.0.1
+  path_provider: ^2.0.13
+  better_open_file: ^3.6.4
+  flowder:
+    git:
+      url: https://github.com/Harsh223/flowder.git
 
 dependency_overrides:
   xml: ^6.2.2