move calls to viewmodel

Author: jjw24

Flow.Launcher/SelectFileManagerWindow.xaml.cs

@@ -32,18 +32,18 @@ private void btnDone_Click(object sender, RoutedEventArgs e)
 
         private void Hyperlink_RequestNavigate(object sender, RequestNavigateEventArgs e)
         {
-            App.API.OpenUrl(e.Uri.AbsoluteUri);
+            _viewModel.OpenUrl(e.Uri.AbsoluteUri);
             e.Handled = true;
         }
 
         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/SelectFileManagerViewModel.cs

@@ -98,6 +98,23 @@ private static bool IsFileManagerValid(string path)
         }
     }
 
+    internal void OpenUrl(string absoluteUri)
+    {
+        App.API.OpenUrl(absoluteUri);
+    }
+
+    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()
     {