move code to viewmodel

Author: jjw24

Flow.Launcher/SelectBrowserWindow.xaml.cs

@@ -31,12 +31,12 @@ private void btnDone_Click(object sender, RoutedEventArgs e)
 
         private void btnBrowseFile_Click(object sender, RoutedEventArgs e)
         {
-            var dlg = new Microsoft.Win32.OpenFileDialog();
-            var result = dlg.ShowDialog();
-            if (result == true)
+            var selectedFilePath = _viewModel.SelectFile();
+
+            if (!string.IsNullOrEmpty(selectedFilePath))
             {
                 var path = (TextBox)(((FrameworkElement)sender).Parent as FrameworkElement).FindName("PathTextBox");
-                path.Text = dlg.FileName;
+                path.Text = selectedFilePath;
                 path.Focus();
                 ((Button)sender).Focus();
             }

Flow.Launcher/ViewModel/SelectBrowserViewModel.cs

@@ -1,5 +1,6 @@
 using System.Collections.ObjectModel;
 using System.Linq;
+using System.Windows;
 using CommunityToolkit.Mvvm.Input;
 using Flow.Launcher.Infrastructure.UserSettings;
 using Flow.Launcher.Plugin;
@@ -40,6 +41,16 @@ public bool SaveSettings()
         return true;
     }
 
+    internal string SelectFile()
+    {
+        var dlg = new Microsoft.Win32.OpenFileDialog();
+        var result = dlg.ShowDialog();
+        if (result == true)
+            return dlg.FileName;
+
+        return string.Empty;
+    }
+
     [RelayCommand]
     private void Add()
     {

Flow.Launcher/ViewModel/SelectFileManagerViewModel.cs

@@ -108,9 +108,7 @@ internal string SelectFile()
         var dlg = new Microsoft.Win32.OpenFileDialog();
         var result = dlg.ShowDialog();
         if (result == true)
-        {
             return dlg.FileName;
-        }
 
         return string.Empty;
     }