feat: support non-steam games & add set SteamPath function at setting…

… page

lib/main.dart

@@ -1,6 +1,7 @@
 import 'page/game.dart';
 import 'page/library.dart';
 import 'util/dto.dart';
+import 'util/game_launcher.dart';
 import 'util/language.dart';
 import 'util/server.dart';
 import 'util/storage.dart';
@@ -113,8 +114,6 @@ class _MyHomePageState extends State<MyHomePage> with WindowListener, SingleTick
         Tab(text: getTranslatedText('Game', '游戏')),
       ];
     });
-    // save config
-    localStorage.writeConfig();
   }
 
   void updateBackButton() {
@@ -126,10 +125,11 @@ class _MyHomePageState extends State<MyHomePage> with WindowListener, SingleTick
   void _loadConfig() async {
     Map<String, dynamic>? config = await localStorage.readConfig();
     if (config != null) {
-      String language = config['language'] as String;
+      String language = config['language'] ?? languageOptions[0];
       if (language != selectedLanguage && languageOptions.indexWhere((element) => element == language) != -1) {
         updateLanguage(language);
       }
+      customSteamPath = config['custom_steam_path'] ?? "";
     }
     latestVersion = await server.getLatestVersion();
   }

lib/util/game_launcher.dart

@@ -2,15 +2,32 @@ import 'dart:io';
 import 'language.dart';
 import 'package:flutter/material.dart';
 
+String customSteamPath = "";
+
 Future<void> launchGame(String trainerPath, int appId, VoidCallback voidCallback) async {
   if (Platform.isLinux) {
     String home = Platform.environment['HOME']!;
-    String steamPath = '$home/.local/share/Steam';
-    await _validateDir(steamPath);
+    String steamPath = customSteamPath.isEmpty ? '$home/.local/share/Steam' : customSteamPath;
+    if (!await _dirExist('$steamPath/steamapps')) {
+      throw Exception(
+        getTranslatedText(
+            "Steam path not found.\n\nYou can specify the path in the settings.\n\nCurrent Path: $steamPath\n\nDefault Path: $home/.local/share/Steam",
+            "未找到Steam路径。\n\n您可以在设置中指定路径。\n\n当前路径为: $steamPath\n\n默认路径为: $home/.local/share/Steam"),
+      );
+    }
     String gamePath = '$steamPath/steamapps/compatdata/$appId';
-    await _validateDir(gamePath);
-    String protonPath = await _getProtonPath(gamePath);
+    if (!await _dirExist(gamePath)) {
+      int? nonSteamGameId = _getAppIdFromPS();
+      if (nonSteamGameId == null) {
+        throw Exception(getTranslatedText(
+            "Game path not found. Please ensure the game is installed.\n\nIf it's a non-Steam game, make sure the game is running.\n\nCurrent Path: $gamePath",
+            "游戏路径未找到。请确保游戏已安装。\n\n如果是非Steam游戏，请确保游戏已启动。\n\n当前路径为: $gamePath"));
+      } else {
+        gamePath = '$steamPath/steamapps/compatdata/$nonSteamGameId';
+      }
+    }
 
+    String protonPath = await _getProtonPath(gamePath);
     voidCallback();
     await Process.run(protonPath, [
       'run',
@@ -37,17 +54,28 @@ Future<String> _getProtonPath(String gamePath) async {
       protonPath = arr.sublist(0, index + 1).join('/');
     }
   }
-  if (protonPath == null) {
-    throw Exception('proton not exist');
+  if (protonPath == null || !await _dirExist(protonPath)) {
+    throw Exception(getTranslatedText(
+        'Proton path not found.\n\nPlease ensure Proton is installed.\n\nCurrent Path: $protonPath', '未找到Proton路径。\n\n请确认已安装Proton。\n\n当前路径为: $protonPath'));
   }
-  _validateDir(protonPath);
   return '$protonPath/proton';
 }
 
-Future<void> _validateDir(String path) async {
-  var dir = Directory(path);
-  bool exist = await dir.exists();
-  if (!exist) {
-    throw Exception(getTranslatedText('$path not found\nMake sure Steam, Proton and Game all are installed', '未找到$path\n请确保Steam, Proton和游戏都已安装'));
+int? _getAppIdFromPS() {
+  final processResult = Process.runSync('/bin/sh', ['-c', r'ps aux | grep "SteamLaunch AppId="']);
+  if (processResult.exitCode == 0) {
+    final outputLines = (processResult.stdout as String).split('\n');
+    for (final line in outputLines) {
+      final match = RegExp(r'SteamLaunch AppId=(\d+)').firstMatch(line);
+      final appId = int.tryParse(match?.group(1) ?? '');
+      if (appId != null) {
+        return appId;
+      }
+    }
   }
+  return null;
+}
+
+Future<bool> _dirExist(String path) async {
+  return await Directory(path).exists();
 }

lib/util/storage.dart

@@ -2,6 +2,7 @@ import 'dart:io';
 import 'dto.dart';
 import 'dart:convert';
 import 'file_system.dart';
+import 'game_launcher.dart';
 import 'language.dart';
 import 'package:flutter/material.dart';
 import 'package:path_provider/path_provider.dart';
@@ -65,7 +66,7 @@ class LocalStorage {
   Future<void> writeConfig() async {
     final path = await localPath;
     final file = File('$path/$configFileName');
-    String config = jsonEncode({'language': selectedLanguage});
+    String config = jsonEncode({'language': selectedLanguage, 'custom_steam_path': customSteamPath});
     file.writeAsString(config);
   }
 

lib/widget/custom_setting_dialog.dart

@@ -1,8 +1,10 @@
 import '../util/language.dart';
 import '../util/storage.dart';
+import '../util/game_launcher.dart';
 import 'package:flutter/material.dart';
-import 'package:package_info_plus/package_info_plus.dart';
 import 'package:url_launcher/url_launcher.dart';
+import 'package:file_picker/file_picker.dart';
+import 'package:package_info_plus/package_info_plus.dart';
 
 class CustomSettingDialog extends StatefulWidget {
   const CustomSettingDialog({super.key, required this.updateLanguage, required this.latestVersion});
@@ -85,6 +87,7 @@ class _CustomSettingDialogState extends State<CustomSettingDialog> {
                         setState(() {
                           widget.updateLanguage(newValue);
                         });
+                        localStorage.writeConfig();
                       }
                     },
                     items: languageOptions.map<DropdownMenuItem<String>>((String value) {
@@ -139,6 +142,52 @@ class _CustomSettingDialogState extends State<CustomSettingDialog> {
             ],
           ),
           const Divider(height: 5),
+          Row(
+            children: [
+              Padding(
+                padding: const EdgeInsets.symmetric(horizontal: 20, vertical: 10),
+                child: Text(
+                  getTranslatedText('Set Steam Path', '设置Steam路径'),
+                  style: const TextStyle(fontSize: 20),
+                ),
+              ),
+              const Spacer(),
+              Padding(
+                padding: const EdgeInsets.only(right: 20),
+                child: SizedBox(
+                  width: 100,
+                  child: ElevatedButton(
+                    style: ElevatedButton.styleFrom(
+                      backgroundColor: const Color(0xFF00D3C4),
+                    ),
+                    child: Text(getTranslatedText('Set', '设置')),
+                    onPressed: () {
+                      FilePicker.platform.getDirectoryPath().then((selectedDirectory) {
+                        debugPrint('$selectedDirectory');
+                        if (selectedDirectory != null) {
+                          customSteamPath = selectedDirectory;
+                          localStorage.writeConfig();
+                          ScaffoldMessenger.of(context).showSnackBar(
+                            SnackBar(
+                              backgroundColor: const Color(0xFF2E3466),
+                              content: Center(
+                                child: Text(
+                                  getTranslatedText('Steam path set successfully', 'Steam路径设置成功'),
+                                  style: const TextStyle(color: Colors.white),
+                                ),
+                              ),
+                            ),
+                          );
+                        }
+                        Navigator.of(context).pop();
+                      });
+                    },
+                  ),
+                ),
+              ),
+            ],
+          ),
+          const Divider(height: 5),
           Row(
             children: [
               Padding(

pubspec.lock

@@ -97,6 +97,14 @@ packages:
       url: "https://pub.dev"
     source: hosted
     version: "7.0.0"
+  file_picker:
+    dependency: "direct main"
+    description:
+      name: file_picker
+      sha256: "4e42aacde3b993c5947467ab640882c56947d9d27342a5b6f2895b23956954a6"
+      url: "https://pub.dev"
+    source: hosted
+    version: "6.1.1"
   flutter:
     dependency: "direct main"
     description: flutter
@@ -119,6 +127,14 @@ packages:
       url: "https://pub.dev"
     source: hosted
     version: "3.0.1"
+  flutter_plugin_android_lifecycle:
+    dependency: transitive
+    description:
+      name: flutter_plugin_android_lifecycle
+      sha256: b068ffc46f82a55844acfa4fdbb61fad72fa2aef0905548419d97f0f95c456da
+      url: "https://pub.dev"
+    source: hosted
+    version: "2.0.17"
   flutter_test:
     dependency: "direct dev"
     description: flutter

pubspec.yaml

@@ -39,6 +39,7 @@ dependencies:
   flutter_cache_manager: ^3.3.1
   url_launcher: ^6.1.14
   package_info_plus: ^4.2.0
+  file_picker: ^6.1.1
 
 dependency_overrides:
   flutter_cache_manager: