Fix/windows install directory confirmation (#16783)

* fix(windows): warn before removing installation directory

Signed-off-by: fufesou <linlong1266@gmail.com>

* fix(windows): show inline installation directory warning

Signed-off-by: fufesou <linlong1266@gmail.com>

* refactor(windows): simplify installation directory warning

Key the warning widget by its path and remove the optional widget test suite.

Signed-off-by: fufesou <linlong1266@gmail.com>

* fix(windows): limit installation warnings to the selected directory

Share install-directory-not-empty-tip between inline and confirmation warnings, and remove the separate previous-installation warning.

Signed-off-by: fufesou <linlong1266@gmail.com>

* fix(windows): skip directory warnings when reinstalling in place

Signed-off-by: fufesou <linlong1266@gmail.com>

---------

Signed-off-by: fufesou <linlong1266@gmail.com>

flutter/lib/desktop/pages/install_page.dart

@@ -3,6 +3,7 @@ import 'dart:convert';
 import 'package:file_picker/file_picker.dart';
 import 'package:flutter/material.dart';
 import 'package:flutter_hbb/common.dart';
+import 'package:flutter_hbb/desktop/widgets/install_directory_confirmation.dart';
 import 'package:flutter_hbb/desktop/widgets/tabbar_widget.dart';
 import 'package:flutter_hbb/models/platform_model.dart';
 import 'package:flutter_hbb/models/state_model.dart';
@@ -164,27 +165,46 @@ class _InstallPageBodyState extends State<_InstallPageBody>
             children: [
               Text(translate('Installation'),
                   style: Theme.of(context).textTheme.headlineMedium),
-              Row(
+              Table(
+                columnWidths: const {
+                  0: IntrinsicColumnWidth(),
+                  2: IntrinsicColumnWidth(),
+                },
+                defaultVerticalAlignment: TableCellVerticalAlignment.middle,
                 children: [
-                  Text('${translate('Installation Path')}:')
-                      .marginOnly(right: 10),
-                  Expanded(
-                    child: TextField(
-                      controller: controller,
-                      readOnly: true,
-                      decoration: InputDecoration(
-                        contentPadding: EdgeInsets.all(0.75 * em),
+                  TableRow(
+                    children: [
+                      Text('${translate('Installation Path')}:')
+                          .marginOnly(right: 10),
+                      TextField(
+                        controller: controller,
+                        readOnly: true,
+                        decoration: InputDecoration(
+                          contentPadding: EdgeInsets.all(0.75 * em),
+                        ),
+                      ).workaroundFreezeLinuxMint().marginOnly(right: 10),
+                      Obx(
+                        () => OutlinedButton.icon(
+                          icon: Icon(Icons.folder_outlined, size: 16),
+                          onPressed:
+                              btnEnabled.value ? selectInstallPath : null,
+                          style: buttonStyle,
+                          label: Text(translate('Change Path')),
+                        ),
                       ),
-                    ).workaroundFreezeLinuxMint().marginOnly(right: 10),
+                    ],
+                  ),
+                  TableRow(
+                    children: [
+                      const SizedBox.shrink(),
+                      ValueListenableBuilder<TextEditingValue>(
+                        valueListenable: controller,
+                        builder: (context, value, child) =>
+                            InstallDirectoryWarning(directoryPath: value.text),
+                      ).marginOnly(right: 10),
+                      const SizedBox.shrink(),
+                    ],
                   ),
-                  Obx(
-                    () => OutlinedButton.icon(
-                      icon: Icon(Icons.folder_outlined, size: 16),
-                      onPressed: btnEnabled.value ? selectInstallPath : null,
-                      style: buttonStyle,
-                      label: Text(translate('Change Path')),
-                    ),
-                  )
                 ],
               ).marginSymmetric(vertical: 2 * em),
               Option(startmenu, label: 'Create start menu shortcuts')
@@ -277,7 +297,9 @@ class _InstallPageBodyState extends State<_InstallPageBody>
         ));
   }
 
-  void install() {
+  Future<void> install() async {
+    if (!btnEnabled.value) return;
+    final installPath = controller.text;
     do_install() {
       btnEnabled.value = false;
       cancelEnabled.value = false;
@@ -286,10 +308,18 @@ class _InstallPageBodyState extends State<_InstallPageBody>
       if (startmenu.value) args += ' startmenu';
       if (desktopicon.value) args += ' desktopicon';
       if (printer.value) args += ' printer';
-      bind.installInstallMe(options: args, path: controller.text);
+      bind.installInstallMe(options: args, path: installPath);
     }
 
-    do_install();
+    btnEnabled.value = false;
+    try {
+      final confirmed =
+          await confirmInstallDirectory(this.context, targetPath: installPath);
+      if (!mounted || !confirmed) return;
+      do_install();
+    } finally {
+      if (mounted && !showProgress.value) btnEnabled.value = true;
+    }
   }
 
   void selectInstallPath() async {

flutter/lib/desktop/widgets/install_directory_confirmation.dart

@@ -0,0 +1,96 @@
+import 'dart:io';
+
+import 'package:flutter/material.dart';
+import 'package:flutter_hbb/common.dart';
+import 'package:flutter_hbb/models/platform_model.dart';
+import 'package:path/path.dart' as path;
+
+const _nonemptyDirectoryWarning = 'install-directory-not-empty-tip';
+
+Future<bool> confirmInstallDirectory(BuildContext context,
+    {required String targetPath}) async {
+  try {
+    final needsWarning = await _needsDirectoryWarning(targetPath);
+    if (!context.mounted) return false;
+    if (!needsWarning) return true;
+    return await _showDirectoryDialog(
+        context, '${translate(_nonemptyDirectoryWarning)}\n$targetPath');
+  } on FileSystemException catch (error) {
+    debugPrint('Failed to inspect installation directory: $error');
+    if (context.mounted) {
+      await _showDirectoryDialog(context, error.toString(), isError: true);
+    }
+    return false;
+  }
+}
+
+Future<bool> _needsDirectoryWarning(String directoryPath) async {
+  if (bind.mainIsInstalled() &&
+      path.equals(directoryPath, bind.installInstallPath())) {
+    return false;
+  }
+  final directory = Directory(directoryPath);
+  return await directory.exists() &&
+      !await directory.list(followLinks: false).isEmpty;
+}
+
+Future<bool> _showDirectoryDialog(BuildContext context, String message,
+    {bool isError = false}) async {
+  final confirmed = await showDialog<bool>(
+    context: context,
+    builder: (dialogContext) => AlertDialog(
+      scrollable: true,
+      title: Text(translate(isError ? 'Error' : 'Warning')),
+      content: SelectableText(message),
+      actions: [
+        dialogButton(isError ? 'OK' : 'Cancel',
+            isOutline: !isError,
+            onPressed: () => Navigator.of(dialogContext).pop(false)),
+        if (!isError)
+          dialogButton('Continue',
+              onPressed: () => Navigator.of(dialogContext).pop(true)),
+      ],
+    ),
+  );
+  return confirmed == true;
+}
+
+class InstallDirectoryWarning extends StatefulWidget {
+  InstallDirectoryWarning({required this.directoryPath})
+      : super(key: ValueKey(directoryPath));
+
+  final String directoryPath;
+
+  @override
+  State<InstallDirectoryWarning> createState() =>
+      _InstallDirectoryWarningState();
+}
+
+class _InstallDirectoryWarningState extends State<InstallDirectoryWarning> {
+  static const _spacing = 8.0;
+  late final Future<bool> _needsWarning =
+      _needsDirectoryWarning(widget.directoryPath);
+
+  @override
+  Widget build(BuildContext context) {
+    return FutureBuilder<bool>(
+      future: _needsWarning,
+      builder: (context, snapshot) {
+        if (!snapshot.hasError && snapshot.data != true) {
+          return const SizedBox.shrink();
+        }
+        return Padding(
+          padding: const EdgeInsets.symmetric(vertical: _spacing),
+          child: Text(
+              snapshot.hasError
+                  ? '${translate('Error')}: ${snapshot.error}'
+                  : translate(_nonemptyDirectoryWarning),
+              style: TextStyle(
+                  color: snapshot.hasError
+                      ? Theme.of(context).colorScheme.error
+                      : Colors.orange.shade700)),
+        );
+      },
+    );
+  }
+}

src/lang/ar.rs

@@ -823,5 +823,6 @@ pub static ref T: std::collections::HashMap<&'static str, &'static str> =
         ("Please select Android → media.", "الرجاء اختيار Android → media."),
         ("Trust duration (days)", "مدة الثقة (بالأيام)"),
         ("Renew trust", "تجديد الثقة"),
+        ("install-directory-not-empty-tip", ""),
     ].iter().cloned().collect();
 }

src/lang/az.rs

@@ -823,5 +823,6 @@ pub static ref T: std::collections::HashMap<&'static str, &'static str> =
         ("Please select Android → media.", "Zəhmət olmasa, Android → media seçin."),
         ("Trust duration (days)", "Etibar müddəti (gün)"),
         ("Renew trust", "Etibarı yenilə"),
+        ("install-directory-not-empty-tip", ""),
     ].iter().cloned().collect();
 }

src/lang/be.rs

@@ -823,5 +823,6 @@ pub static ref T: std::collections::HashMap<&'static str, &'static str> =
         ("Please select Android → media.", "Выберыце Android → media."),
         ("Trust duration (days)", "Тэрмін даверу (у днях)"),
         ("Renew trust", "Падоўжыць давер"),
+        ("install-directory-not-empty-tip", ""),
     ].iter().cloned().collect();
 }

src/lang/bg.rs

@@ -823,5 +823,6 @@ pub static ref T: std::collections::HashMap<&'static str, &'static str> =
         ("Please select Android → media.", "Моля, изберете Android → media."),
         ("Trust duration (days)", "Срок на доверие (дни)"),
         ("Renew trust", "Подновяване на доверието"),
+        ("install-directory-not-empty-tip", ""),
     ].iter().cloned().collect();
 }

src/lang/ca.rs

@@ -823,5 +823,6 @@ pub static ref T: std::collections::HashMap<&'static str, &'static str> =
         ("Please select Android → media.", "Seleccioneu Android → media."),
         ("Trust duration (days)", "Durada de la confiança (dies)"),
         ("Renew trust", "Renova la confiança"),
+        ("install-directory-not-empty-tip", ""),
     ].iter().cloned().collect();
 }

src/lang/cn.rs

@@ -823,5 +823,6 @@ pub static ref T: std::collections::HashMap<&'static str, &'static str> =
         ("Please select Android → media.", "请选择 Android → media。"),
         ("Trust duration (days)", "信任有效期（天）"),
         ("Renew trust", "延长信任有效期"),
+        ("install-directory-not-empty-tip", "所选文件夹不为空。安装可能删除现有数据。建议选择其他文件夹。"),
     ].iter().cloned().collect();
 }

src/lang/cs.rs

@@ -823,5 +823,6 @@ pub static ref T: std::collections::HashMap<&'static str, &'static str> =
         ("Please select Android → media.", "Vyberte prosím Android → media."),
         ("Trust duration (days)", "Doba důvěry (dny)"),
         ("Renew trust", "Obnovit důvěru"),
+        ("install-directory-not-empty-tip", ""),
     ].iter().cloned().collect();
 }

src/lang/da.rs

@@ -823,5 +823,6 @@ pub static ref T: std::collections::HashMap<&'static str, &'static str> =
         ("Please select Android → media.", "Vælg Android → media."),
         ("Trust duration (days)", "Tillidsperiode (dage)"),
         ("Renew trust", "Forny tillid"),
+        ("install-directory-not-empty-tip", ""),
     ].iter().cloned().collect();
 }

src/lang/de.rs

@@ -823,5 +823,6 @@ pub static ref T: std::collections::HashMap<&'static str, &'static str> =
         ("Please select Android → media.", "Bitte wählen Sie Android → media."),
         ("Trust duration (days)", "Vertrauensdauer (Tage)"),
         ("Renew trust", "Vertrauen erneuern"),
+        ("install-directory-not-empty-tip", ""),
     ].iter().cloned().collect();
 }

src/lang/el.rs

@@ -823,5 +823,6 @@ pub static ref T: std::collections::HashMap<&'static str, &'static str> =
         ("Please select Android → media.", "Παρακαλώ επιλέξτε Android → media."),
         ("Trust duration (days)", "Διάρκεια εμπιστοσύνης (ημέρες)"),
         ("Renew trust", "Ανανέωση εμπιστοσύνης"),
+        ("install-directory-not-empty-tip", ""),
     ].iter().cloned().collect();
 }

src/lang/en.rs

@@ -291,5 +291,6 @@ pub static ref T: std::collections::HashMap<&'static str, &'static str> =
         ("api_server_connection_tip", "Your custom server uses unencrypted HTTP. Contact your administrator to enable HTTPS."),
         ("api_server_empty_tip", "With API Server empty, your custom server defaults to HTTP. Contact your administrator to enable HTTPS."),
         ("android-logs-folder-tip", "Choose Android → media to store log files."),
+        ("install-directory-not-empty-tip", "The selected folder is not empty. Installation may delete existing data. Consider choosing a different folder."),
     ].iter().cloned().collect();
 }

src/lang/eo.rs

@@ -823,5 +823,6 @@ pub static ref T: std::collections::HashMap<&'static str, &'static str> =
         ("Please select Android → media.", "Bonvolu elekti Android → media."),
         ("Trust duration (days)", "Daŭro de fido (tagoj)"),
         ("Renew trust", "Renovigi fidon"),
+        ("install-directory-not-empty-tip", ""),
     ].iter().cloned().collect();
 }

src/lang/es.rs

@@ -823,5 +823,6 @@ pub static ref T: std::collections::HashMap<&'static str, &'static str> =
         ("Please select Android → media.", "Seleccione Android → media."),
         ("Trust duration (days)", "Duración de la confianza (días)"),
         ("Renew trust", "Renovar confianza"),
+        ("install-directory-not-empty-tip", ""),
     ].iter().cloned().collect();
 }

src/lang/et.rs

@@ -823,5 +823,6 @@ pub static ref T: std::collections::HashMap<&'static str, &'static str> =
         ("Please select Android → media.", "Palun vali Android → media."),
         ("Trust duration (days)", "Usalduse kestus (päevades)"),
         ("Renew trust", "Uuenda usaldust"),
+        ("install-directory-not-empty-tip", ""),
     ].iter().cloned().collect();
 }

src/lang/eu.rs

@@ -823,5 +823,6 @@ pub static ref T: std::collections::HashMap<&'static str, &'static str> =
         ("Please select Android → media.", "Hautatu Android → media."),
         ("Trust duration (days)", "Konfiantzaren iraupena (egunak)"),
         ("Renew trust", "Berritu konfiantza"),
+        ("install-directory-not-empty-tip", ""),
     ].iter().cloned().collect();
 }

src/lang/fa.rs

@@ -823,5 +823,6 @@ pub static ref T: std::collections::HashMap<&'static str, &'static str> =
         ("Please select Android → media.", "لطفاً Android → media را انتخاب کنید."),
         ("Trust duration (days)", "مدت اعتماد (روز)"),
         ("Renew trust", "تمدید اعتماد"),
+        ("install-directory-not-empty-tip", ""),
     ].iter().cloned().collect();
 }

src/lang/fi.rs

@@ -823,5 +823,6 @@ pub static ref T: std::collections::HashMap<&'static str, &'static str> =
         ("Please select Android → media.", "Valitse Android → media."),
         ("Trust duration (days)", "Luottamuksen kesto (päivää)"),
         ("Renew trust", "Jatka luottamusta"),
+        ("install-directory-not-empty-tip", ""),
     ].iter().cloned().collect();
 }

src/lang/fr.rs

@@ -823,5 +823,6 @@ pub static ref T: std::collections::HashMap<&'static str, &'static str> =
         ("Please select Android → media.", "Veuillez sélectionner Android → media."),
         ("Trust duration (days)", "Durée de confiance (jours)"),
         ("Renew trust", "Renouveler la confiance"),
+        ("install-directory-not-empty-tip", ""),
     ].iter().cloned().collect();
 }

src/lang/ge.rs

@@ -823,5 +823,6 @@ pub static ref T: std::collections::HashMap<&'static str, &'static str> =
         ("Please select Android → media.", "გთხოვთ, აირჩიოთ Android → media."),
         ("Trust duration (days)", "ნდობის ხანგრძლივობა (დღე)"),
         ("Renew trust", "ნდობის განახლება"),
+        ("install-directory-not-empty-tip", ""),
     ].iter().cloned().collect();
 }

src/lang/gl.rs

@@ -823,5 +823,6 @@ pub static ref T: std::collections::HashMap<&'static str, &'static str> =
         ("Please select Android → media.", "Selecciona Android → media."),
         ("Trust duration (days)", "Duración da confianza (días)"),
         ("Renew trust", "Renovar a confianza"),
+        ("install-directory-not-empty-tip", ""),
     ].iter().cloned().collect();
 }

src/lang/gu.rs

@@ -823,5 +823,6 @@ pub static ref T: std::collections::HashMap<&'static str, &'static str> =
         ("Please select Android → media.", "કૃપા કરીને Android → media પસંદ કરો."),
         ("Trust duration (days)", "વિશ્વાસ અવધિ (દિવસો)"),
         ("Renew trust", "વિશ્વાસ નવીકરણ કરો"),
+        ("install-directory-not-empty-tip", ""),
     ].iter().cloned().collect();
 }

src/lang/he.rs

@@ -823,5 +823,6 @@ pub static ref T: std::collections::HashMap<&'static str, &'static str> =
         ("Please select Android → media.", "אנא בחר Android → media."),
         ("Trust duration (days)", "משך האמון (ימים)"),
         ("Renew trust", "חידוש אמון"),
+        ("install-directory-not-empty-tip", ""),
     ].iter().cloned().collect();
 }

src/lang/hi.rs

@@ -823,5 +823,6 @@ pub static ref T: std::collections::HashMap<&'static str, &'static str> =
         ("Please select Android → media.", "कृपया Android → media चुनें।"),
         ("Trust duration (days)", "विश्वास अवधि (दिन)"),
         ("Renew trust", "विश्वास नवीनीकृत करें"),
+        ("install-directory-not-empty-tip", ""),
     ].iter().cloned().collect();
 }

src/lang/hr.rs

@@ -823,5 +823,6 @@ pub static ref T: std::collections::HashMap<&'static str, &'static str> =
         ("Please select Android → media.", "Odaberite Android → media."),
         ("Trust duration (days)", "Trajanje povjerenja (dani)"),
         ("Renew trust", "Obnovi povjerenje"),
+        ("install-directory-not-empty-tip", ""),
     ].iter().cloned().collect();
 }

src/lang/hu.rs

@@ -823,5 +823,6 @@ pub static ref T: std::collections::HashMap<&'static str, &'static str> =
         ("Please select Android → media.", "Válassza az Android → media mappát."),
         ("Trust duration (days)", "Megbízhatóság időtartama (nap)"),
         ("Renew trust", "Megbízhatóság megújítása"),
+        ("install-directory-not-empty-tip", ""),
     ].iter().cloned().collect();
 }

src/lang/id.rs

@@ -823,5 +823,6 @@ pub static ref T: std::collections::HashMap<&'static str, &'static str> =
         ("Please select Android → media.", "Silakan pilih Android → media."),
         ("Trust duration (days)", "Durasi kepercayaan (hari)"),
         ("Renew trust", "Perbarui kepercayaan"),
+        ("install-directory-not-empty-tip", ""),
     ].iter().cloned().collect();
 }

src/lang/it.rs

@@ -823,5 +823,6 @@ pub static ref T: std::collections::HashMap<&'static str, &'static str> =
         ("Please select Android → media.", "Seleziona Android → media."),
         ("Trust duration (days)", "Durata attendibilità (giorni)"),
         ("Renew trust", "Rinnova attendibilità"),
+        ("install-directory-not-empty-tip", ""),
     ].iter().cloned().collect();
 }

src/lang/ja.rs

@@ -823,5 +823,6 @@ pub static ref T: std::collections::HashMap<&'static str, &'static str> =
         ("Please select Android → media.", "Android → media を選択してください。"),
         ("Trust duration (days)", "信頼期間 (日)"),
         ("Renew trust", "信頼を更新"),
+        ("install-directory-not-empty-tip", ""),
     ].iter().cloned().collect();
 }

src/lang/ko.rs

@@ -823,5 +823,6 @@ pub static ref T: std::collections::HashMap<&'static str, &'static str> =
         ("Please select Android → media.", "Android → media를 선택해 주시기 바랍니다."),
         ("Trust duration (days)", "신뢰 유지 기간 (일)"),
         ("Renew trust", "신뢰 갱신"),
+        ("install-directory-not-empty-tip", ""),
     ].iter().cloned().collect();
 }

src/lang/kz.rs

@@ -823,5 +823,6 @@ pub static ref T: std::collections::HashMap<&'static str, &'static str> =
         ("Please select Android → media.", "Android → media таңдаңыз."),
         ("Trust duration (days)", "Сенім мерзімі (күн)"),
         ("Renew trust", "Сенімді жаңарту"),
+        ("install-directory-not-empty-tip", ""),
     ].iter().cloned().collect();
 }

src/lang/lt.rs

@@ -823,5 +823,6 @@ pub static ref T: std::collections::HashMap<&'static str, &'static str> =
         ("Please select Android → media.", "Pasirinkite Android → media."),
         ("Trust duration (days)", "Pasitikėjimo trukmė (dienomis)"),
         ("Renew trust", "Atnaujinti pasitikėjimą"),
+        ("install-directory-not-empty-tip", ""),
     ].iter().cloned().collect();
 }

src/lang/lv.rs

@@ -823,5 +823,6 @@ pub static ref T: std::collections::HashMap<&'static str, &'static str> =
         ("Please select Android → media.", "Lūdzu, atlasiet Android → media."),
         ("Trust duration (days)", "Uzticēšanās ilgums (dienas)"),
         ("Renew trust", "Atjaunot uzticēšanos"),
+        ("install-directory-not-empty-tip", ""),
     ].iter().cloned().collect();
 }

src/lang/ml.rs

@@ -823,5 +823,6 @@ pub static ref T: std::collections::HashMap<&'static str, &'static str> =
         ("Please select Android → media.", "ദയവായി Android → media തിരഞ്ഞെടുക്കുക."),
         ("Trust duration (days)", "വിശ്വാസ കാലാവധി (ദിവസം)"),
         ("Renew trust", "വിശ്വാസം പുതുക്കുക"),
+        ("install-directory-not-empty-tip", ""),
     ].iter().cloned().collect();
 }

src/lang/nb.rs

@@ -823,5 +823,6 @@ pub static ref T: std::collections::HashMap<&'static str, &'static str> =
         ("Please select Android → media.", "Velg Android → media."),
         ("Trust duration (days)", "Klareringsperiode (dager)"),
         ("Renew trust", "Forny klarering"),
+        ("install-directory-not-empty-tip", ""),
     ].iter().cloned().collect();
 }

src/lang/nl.rs

@@ -823,5 +823,6 @@ pub static ref T: std::collections::HashMap<&'static str, &'static str> =
         ("Please select Android → media.", "Selecteer Android → media."),
         ("Trust duration (days)", "Vertrouwensperiode (dagen)"),
         ("Renew trust", "Vertrouwen hernieuwen"),
+        ("install-directory-not-empty-tip", ""),
     ].iter().cloned().collect();
 }

src/lang/pl.rs

@@ -823,5 +823,6 @@ pub static ref T: std::collections::HashMap<&'static str, &'static str> =
         ("Please select Android → media.", "Wybierz Android → media."),
         ("Trust duration (days)", "Okres zaufania (dni)"),
         ("Renew trust", "Odnów zaufanie"),
+        ("install-directory-not-empty-tip", ""),
     ].iter().cloned().collect();
 }

src/lang/pt_BR.rs

@@ -823,5 +823,6 @@ pub static ref T: std::collections::HashMap<&'static str, &'static str> =
         ("Please select Android → media.", "Selecione Android → media."),
         ("Trust duration (days)", "Duração da confiança (dias)"),
         ("Renew trust", "Renovar confiança"),
+        ("install-directory-not-empty-tip", ""),
     ].iter().cloned().collect();
 }

src/lang/pt_PT.rs

@@ -823,5 +823,6 @@ pub static ref T: std::collections::HashMap<&'static str, &'static str> =
         ("Please select Android → media.", "Por favor selecione Android → media."),
         ("Trust duration (days)", "Duração da confiança (dias)"),
         ("Renew trust", "Renovar confiança"),
+        ("install-directory-not-empty-tip", ""),
     ].iter().cloned().collect();
 }

src/lang/ro.rs

@@ -823,5 +823,6 @@ pub static ref T: std::collections::HashMap<&'static str, &'static str> =
         ("Please select Android → media.", "Selectează Android → media."),
         ("Trust duration (days)", "Durata încrederii (zile)"),
         ("Renew trust", "Reînnoiește încrederea"),
+        ("install-directory-not-empty-tip", ""),
     ].iter().cloned().collect();
 }

src/lang/ru.rs

@@ -823,5 +823,6 @@ pub static ref T: std::collections::HashMap<&'static str, &'static str> =
         ("Please select Android → media.", "Выберите Android → media."),
         ("Trust duration (days)", "Срок доверия (в днях)"),
         ("Renew trust", "Продлить доверие"),
+        ("install-directory-not-empty-tip", ""),
     ].iter().cloned().collect();
 }

src/lang/sc.rs

@@ -823,5 +823,6 @@ pub static ref T: std::collections::HashMap<&'static str, &'static str> =
         ("Please select Android → media.", "Seletziona Android → media."),
         ("Trust duration (days)", "Durada de sa fidùtzia (dies)"),
         ("Renew trust", "Annoa sa fidùtzia"),
+        ("install-directory-not-empty-tip", ""),
     ].iter().cloned().collect();
 }

src/lang/sk.rs

@@ -823,5 +823,6 @@ pub static ref T: std::collections::HashMap<&'static str, &'static str> =
         ("Please select Android → media.", "Vyberte Android → media."),
         ("Trust duration (days)", "Doba dôvery (dni)"),
         ("Renew trust", "Obnoviť dôveru"),
+        ("install-directory-not-empty-tip", ""),
     ].iter().cloned().collect();
 }

src/lang/sl.rs

@@ -823,5 +823,6 @@ pub static ref T: std::collections::HashMap<&'static str, &'static str> =
         ("Please select Android → media.", "Izberite Android → media."),
         ("Trust duration (days)", "Trajanje zaupanja (dni)"),
         ("Renew trust", "Obnovi zaupanje"),
+        ("install-directory-not-empty-tip", ""),
     ].iter().cloned().collect();
 }

src/lang/sq.rs

@@ -823,5 +823,6 @@ pub static ref T: std::collections::HashMap<&'static str, &'static str> =
         ("Please select Android → media.", "Ju lutemi zgjidhni Android → media."),
         ("Trust duration (days)", "Kohëzgjatja e besimit (ditë)"),
         ("Renew trust", "Rinovo besimin"),
+        ("install-directory-not-empty-tip", ""),
     ].iter().cloned().collect();
 }

src/lang/sr.rs

@@ -823,5 +823,6 @@ pub static ref T: std::collections::HashMap<&'static str, &'static str> =
         ("Please select Android → media.", "Izaberite Android → media."),
         ("Trust duration (days)", "Trajanje poverenja (dani)"),
         ("Renew trust", "Obnovi poverenje"),
+        ("install-directory-not-empty-tip", ""),
     ].iter().cloned().collect();
 }

src/lang/sv.rs

@@ -823,5 +823,6 @@ pub static ref T: std::collections::HashMap<&'static str, &'static str> =
         ("Please select Android → media.", "Välj Android → media."),
         ("Trust duration (days)", "Förtroendeperiod (dagar)"),
         ("Renew trust", "Förnya förtroende"),
+        ("install-directory-not-empty-tip", ""),
     ].iter().cloned().collect();
 }

src/lang/ta.rs

@@ -823,5 +823,6 @@ pub static ref T: std::collections::HashMap<&'static str, &'static str> =
         ("Please select Android → media.", "Android → media என்பதைத் தேர்ந்தெடுக்கவும்."),
         ("Trust duration (days)", "நம்பிக்கைக் காலம் (நாட்கள்)"),
         ("Renew trust", "நம்பிக்கையைப் புதுப்பி"),
+        ("install-directory-not-empty-tip", ""),
     ].iter().cloned().collect();
 }

src/lang/template.rs

@@ -823,5 +823,6 @@ pub static ref T: std::collections::HashMap<&'static str, &'static str> =
         ("Please select Android → media.", ""),
         ("Trust duration (days)", ""),
         ("Renew trust", ""),
+        ("install-directory-not-empty-tip", ""),
     ].iter().cloned().collect();
 }

src/lang/th.rs

@@ -823,5 +823,6 @@ pub static ref T: std::collections::HashMap<&'static str, &'static str> =
         ("Please select Android → media.", "กรุณาเลือก Android → media"),
         ("Trust duration (days)", "ระยะเวลาการเชื่อถือ (วัน)"),
         ("Renew trust", "ต่ออายุการเชื่อถือ"),
+        ("install-directory-not-empty-tip", ""),
     ].iter().cloned().collect();
 }

src/lang/tr.rs

@@ -823,5 +823,6 @@ pub static ref T: std::collections::HashMap<&'static str, &'static str> =
         ("Please select Android → media.", "Lütfen Android → media konumunu seçin."),
         ("Trust duration (days)", "Güven süresi (gün)"),
         ("Renew trust", "Güveni yenile"),
+        ("install-directory-not-empty-tip", ""),
     ].iter().cloned().collect();
 }

src/lang/tw.rs

@@ -823,5 +823,6 @@ pub static ref T: std::collections::HashMap<&'static str, &'static str> =
         ("Please select Android → media.", "請選擇 Android → media。"),
         ("Trust duration (days)", "信任有效期（天）"),
         ("Renew trust", "延長信任期限"),
+        ("install-directory-not-empty-tip", "所選資料夾不是空的。安裝可能刪除現有資料。建議選擇其他資料夾。"),
     ].iter().cloned().collect();
 }

src/lang/uk.rs

@@ -823,5 +823,6 @@ pub static ref T: std::collections::HashMap<&'static str, &'static str> =
         ("Please select Android → media.", "Будь ласка, виберіть Android → media."),
         ("Trust duration (days)", "Термін довіри (у днях)"),
         ("Renew trust", "Подовжити довіру"),
+        ("install-directory-not-empty-tip", ""),
     ].iter().cloned().collect();
 }

src/lang/ur.rs

@@ -823,5 +823,6 @@ pub static ref T: std::collections::HashMap<&'static str, &'static str> =
         ("Please select Android → media.", "براہ کرم Android → media منتخب کریں۔"),
         ("Trust duration (days)", "اعتماد کی مدت (دن)"),
         ("Renew trust", "اعتماد کی تجدید کریں"),
+        ("install-directory-not-empty-tip", ""),
     ].iter().cloned().collect();
 }

src/lang/vi.rs

@@ -823,5 +823,6 @@ pub static ref T: std::collections::HashMap<&'static str, &'static str> =
         ("Please select Android → media.", "Vui lòng chọn Android → media."),
         ("Trust duration (days)", "Thời hạn tin cậy (ngày)"),
         ("Renew trust", "Gia hạn tin cậy"),
+        ("install-directory-not-empty-tip", ""),
     ].iter().cloned().collect();
 }