feat: improve file select tree view

ui/flutter/lib/app/modules/create/views/create_view.dart

@@ -1,4 +1,5 @@
 import 'package:autoscale_tabbarview/autoscale_tabbarview.dart';
+import 'package:checkable_treeview/checkable_treeview.dart';
 import 'package:desktop_drop/desktop_drop.dart';
 import 'package:file_picker/file_picker.dart';
 import 'package:flutter/material.dart';
@@ -16,10 +17,11 @@ import '../../../../database/database.dart';
 import '../../../../util/input_formatter.dart';
 import '../../../../util/message.dart';
 import '../../../../util/util.dart';
+import '../../../../util/extensions.dart';
 import '../../../routes/app_pages.dart';
 import '../../../views/compact_checkbox.dart';
 import '../../../views/directory_selector.dart';
-import '../../../views/file_list_view.dart';
+import '../../../views/file_tree_view.dart';
 import '../../app/controllers/app_controller.dart';
 import '../../history/views/history_view.dart';
 import '../controllers/create_controller.dart';
@@ -40,6 +42,7 @@ class CreateView extends GetView<CreateController> {
   final _httpCookieController = TextEditingController();
   final _httpRefererController = TextEditingController();
   final _btTrackerController = TextEditingController();
+  final _fileTreeViewKey = GlobalKey<TreeViewState<int>>();
 
   final _availableSchemes = ["http:", "https:", "magnet:"];
 
@@ -698,7 +701,13 @@ class CreateView extends GetView<CreateController> {
                     child: Form(
                         key: createFormKey,
                         autovalidateMode: AutovalidateMode.always,
-                        child: FileListView(files: rr.res.files)),
+                        child: FileTreeView(
+                          files: rr.res.files,
+                          initialValues: rr.res.files.asMap().keys.toList(),
+                          onSelectionChanged: (List<int> values) {
+                            controller.selectedIndexes.value = values;
+                          },
+                        )),
                   );
                 },
               ),

ui/flutter/lib/app/modules/task/views/task_files_view.dart

@@ -7,10 +7,9 @@ import 'package:url_launcher/url_launcher.dart';
 
 import '../../../../api/api.dart' as api;
 import '../../../../util/browser_download/browser_download.dart';
-import '../../../../util/file_icon.dart';
-import '../../../../util/icons.dart';
 import '../../../../util/util.dart';
 import '../../../views/breadcrumb_view.dart';
+import '../../../views/file_icon.dart';
 import '../controllers/task_files_controller.dart';
 
 class TaskFilesView extends GetView<TaskFilesController> {
@@ -66,8 +65,8 @@ class TaskFilesView extends GetView<TaskFilesController> {
                     final fileName = basename(filePath);
                     return ListTile(
                       leading: file.isDirectory
-                          ? const Icon(Icons.folder)
-                          : Icon(FaIcons.allIcons[findIcon(fileName)]),
+                          ? const Icon(folderIcon)
+                          : Icon(fileIcon(fileName)),
                       title: Text(fileName),
                       subtitle: file.isDirectory
                           ? Text('items'.trParams({

ui/flutter/lib/app/views/buid_task_list_view.dart

@@ -4,14 +4,13 @@ import 'package:styled_widget/styled_widget.dart';
 
 import '../../api/api.dart';
 import '../../api/model/task.dart';
-import '../../util/file_icon.dart';
-import '../../util/icons.dart';
 import '../../util/message.dart';
 import '../../util/util.dart';
 import '../modules/app/controllers/app_controller.dart';
 import '../modules/task/controllers/task_controller.dart';
 import '../modules/task/views/task_view.dart';
 import '../routes/app_pages.dart';
+import 'file_icon.dart';
 
 class BuildTaskListView extends GetView {
   final List<Task> tasks;
@@ -185,8 +184,8 @@ class BuildTaskListView extends GetView {
               ListTile(
                   title: Text(task.name),
                   leading: isFolderTask()
-                      ? const Icon(FaIcons.folder)
-                      : Icon(FaIcons.allIcons[findIcon(task.name)])),
+                      ? const Icon(folderIcon)
+                      : Icon(fileIcon(task.name))),
               Row(
                 children: [
                   Expanded(

ui/flutter/lib/app/views/file_icon.dart

@@ -0,0 +1,79 @@
+import 'package:flutter/material.dart';
+
+import '../../icon/gopeed_icons.dart';
+
+final Map<IconData, List<String>> iconConfigMap = {
+  Gopeed.install: ['exe', 'msi', 'dmg', 'deb', 'rpm'],
+  Gopeed.android: ['apk'],
+  Gopeed.app_store_ios: ['ipa'],
+  Gopeed.file_bt: ['torrent'],
+  Gopeed.cd: ['iso'],
+  Gopeed.html5: ['html', 'htm'],
+  Gopeed.file_alt: ['txt', 'md', 'log', 'csv', 'tsv', 'json', 'yaml', 'yml'],
+  Gopeed.file_pdf: ['pdf'],
+  Gopeed.file_word: ['doc', 'docx'],
+  Gopeed.file_excel: ['xls', 'xlsx'],
+  Gopeed.file_powerpoint: ['ppt', 'pptx'],
+  Gopeed.file_archive: ['zip', 'rar', '7z', 'tar', 'gz', 'bz2', 'xz'],
+  Gopeed.file_image: [
+    'jpg',
+    'jpeg',
+    'png',
+    'gif',
+    'bmp',
+    'tiff',
+    'svg',
+    'webp'
+  ],
+  Gopeed.file_audio: ['mp3', 'wav', 'flac', 'aac', 'ogg', 'wma', 'm4a'],
+  Gopeed.file_video: ['mp4', 'avi', 'mkv', 'mov', 'wmv', 'flv', 'webm'],
+  Gopeed.file_code: [
+    'js',
+    'css',
+    'json',
+    'xml',
+    'java',
+    'cpp',
+    'dart',
+    'py',
+    'rb',
+    'php',
+    'ts',
+    'swift',
+    'go',
+    'rs'
+  ],
+  Gopeed.file: [''],
+};
+
+final Map<String, IconData> _iconCache = Map.fromEntries(
+  iconConfigMap.entries.expand(
+    (entry) => entry.value.map((ext) => MapEntry(ext, entry.key)),
+  ),
+);
+
+const folderIcon = Gopeed.folder;
+const folderBtIcon = Gopeed.folder_bt;
+
+String fileExt(String? name) {
+  if (name == null) {
+    return '';
+  }
+
+  final ext = name.split('.').last;
+  if (ext.length > 8) {
+    return '';
+  }
+
+  return ext.toLowerCase();
+}
+
+IconData fileIcon(String? name,
+    {bool isFolder = false, bool isBitTorrent = false}) {
+  if (isFolder) {
+    return isBitTorrent ? folderBtIcon : folderIcon;
+  }
+
+  final ext = fileExt(name);
+  return _iconCache[ext] ?? Gopeed.file;
+}