Add a way to change game directory

GenshinLauncher.sln.DotSettings

@@ -0,0 +1,2 @@
+<wpf:ResourceDictionary xml:space="preserve" xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" xmlns:s="clr-namespace:System;assembly=mscorlib" xmlns:ss="urn:shemas-jetbrains-com:settings-storage-xaml" xmlns:wpf="http://schemas.microsoft.com/winfx/2006/xaml/presentation">
+	<s:Boolean x:Key="/Default/UserDictionary/Words/=Genshin/@EntryIndexedValue">True</s:Boolean></wpf:ResourceDictionary>

GenshinLauncher/App.xaml

@@ -29,9 +29,6 @@
                     <Style TargetType="TextBox" BasedOn="{StaticResource {x:Type TextBox}}">
                         <Setter Property="MinWidth" Value="200" />
                     </Style>
-                    <Style TargetType="Button" BasedOn="{StaticResource {x:Type Button}}">
-                        <Setter Property="MinWidth" Value="125" />
-                    </Style>
                 </Style.Resources>
             </Style>
         </ResourceDictionary>

GenshinLauncher/GenshinLauncher.csproj

@@ -13,7 +13,8 @@
     <RepositoryUrl>https://github.com/sabihoshi/GenshinLauncher</RepositoryUrl>
     <Description>A Genshin Impact launcher with more options in Modern Fluent UI.</Description>
     <ApplicationIcon>GenshinImpactIcon.ico</ApplicationIcon>
-    <Version>1.1.0.1</Version>
+    <Version>1.2.0</Version>
+    <Nullable>enable</Nullable>
   </PropertyGroup>
 
   <ItemGroup>

GenshinLauncher/ViewModels/MainWindowViewModel.cs

@@ -1,13 +1,18 @@
-using System.Configuration;
+using System;
+using System.IO;
 using System.Linq;
 using System.Threading.Tasks;
 using CliWrap;
+using Microsoft.Win32;
+using ModernWpf.Controls;
 using Stylet;
 
 namespace GenshinLauncher.ViewModels
 {
     public class MainWindowViewModel : Screen
     {
+        public const string Title = "Genshin Impact Launcher";
+
         public MainWindowViewModel()
         {
             Quality    = new();
@@ -20,16 +25,93 @@ public MainWindowViewModel()
 
         public Resolution Resolution { get; set; }
 
-        [UserScopedSetting]
-        public string GenshinLocation { get; set; } =
-            @"C:\Program Files\Genshin Impact\Genshin Impact Game\GenshinImpact.exe";
+        public string GenshinLocation { get; set; }
 
-        public string Title { get; } = "Genshin Impact Launcher";
+        private static string? InstallLocation => Registry.LocalMachine
+            .OpenSubKey(@"SOFTWARE\launcher", false)
+            ?.GetValue("InstPath") as string;
 
         public async Task<CommandResult> LaunchSelector() =>
             await Client.WithArguments("-show-screen-selector")
                 .ExecuteAsync();
 
+        protected override async void OnInitialActivate()
+        {
+            if (!TryGetLocation())
+                await LocationMissing();
+        }
+
+        private async Task LocationMissing()
+        {
+            var dialog = new ContentDialog
+            {
+                Title   = "Error",
+                Content = "Could not find Game's Location",
+
+                PrimaryButtonText   = "Find Manually...",
+                SecondaryButtonText = "Ignore",
+                CloseButtonText     = "Exit"
+            };
+
+            var result = await dialog.ShowAsync();
+
+            switch (result)
+            {
+                case ContentDialogResult.None:
+                    RequestClose();
+                    break;
+                case ContentDialogResult.Primary:
+                    await SetLocation();
+                    break;
+                case ContentDialogResult.Secondary:
+                    break;
+            }
+        }
+
+        public async Task SetLocation()
+        {
+            var openFileDialog = new OpenFileDialog
+            {
+                Filter = "Executable|*.exe|All files (*.*)|*.*",
+                InitialDirectory = InstallLocation is null
+                    ? string.Empty
+                    : Path.Combine(InstallLocation, "Genshin Impact Game")
+            };
+
+            var success = openFileDialog.ShowDialog() == true;
+            var set = TrySetLocation(openFileDialog.FileName);
+
+            if (!(success && set)) await LocationMissing();
+        }
+
+        private bool TryGetLocation()
+        {
+            var location = @"C:\Program Files\Genshin Impact\Genshin Impact Game\GenshinImpact.exe";
+
+            if (TrySetLocation(location))
+                return true;
+
+            location = InstallLocation + @"\Genshin Impact Game\GenshinImpact.exe";
+
+            if (TrySetLocation(location))
+                return true;
+
+            location = AppContext.BaseDirectory + "GenshinImpact.exe";
+
+            return TrySetLocation(location);
+        }
+
+        private bool TrySetLocation(string location)
+        {
+            if (File.Exists(location))
+            {
+                GenshinLocation = location;
+                return true;
+            }
+
+            return false;
+        }
+
         public void LaunchGame()
         {
             var client = Client

GenshinLauncher/Views/MainWindowView.xaml

@@ -12,9 +12,9 @@
     xmlns:genshinLauncher="clr-namespace:GenshinLauncher"
     d:DataContext="{d:DesignInstance Type=viewModels:MainWindowViewModel}"
 
-    Title="{Binding Title}"
-    Width="500" Height="450"
-    MinWidth="500" MinHeight="450"
+    Title="{x:Static viewModels:MainWindowViewModel.Title}"
+    Width="500" Height="600"
+    MinWidth="500" MinHeight="600"
     ui:WindowHelper.UseModernWindowStyle="True"
     ui:TitleBar.ExtendViewIntoTitleBar="True">
 
@@ -30,7 +30,7 @@
         <ui:SimpleStackPanel>
             <TextBlock
                 Style="{StaticResource TitleTextBlockStyle}"
-                Text="{Binding Title}" />
+                Text="{x:Static viewModels:MainWindowViewModel.Title}" />
 
             <ui:SimpleStackPanel Orientation="Horizontal">
                 <ui:ToggleSwitch
@@ -62,6 +62,20 @@
                         SelectedItem="{Binding Resolution}" />
                 </GroupBox>
             </ui:SimpleStackPanel>
+            <GroupBox Header="Path">
+                <Grid>
+                    <Grid.ColumnDefinitions>
+                        <ColumnDefinition Width="*" />
+                        <ColumnDefinition Width="Auto" />
+                    </Grid.ColumnDefinitions>
+
+                    <TextBox Grid.Column="0" Text="{Binding GenshinLocation}" TextWrapping="WrapWithOverflow" />
+                    <Button Grid.Column="1" Margin="5,0,0,0"
+                            Command="{s:Action SetLocation}">
+                        <ui:FontIcon Glyph="&#xE8E5;" />
+                    </Button>
+                </Grid>
+            </GroupBox>
 
             <ui:SimpleStackPanel
                 Orientation="Horizontal"