add support for action keyword when using Ctrl + Backspace

Author: jjw24

Flow.Launcher/MainWindow.xaml.cs

@@ -506,12 +506,16 @@ private void OnKeyDown(object sender, KeyEventArgs e)
                     if (specialKeyState.CtrlPressed)
                     {
                         if (_viewModel.SelectedIsFromQueryResults()
-                            && QueryTextBox.CaretIndex == QueryTextBox.Text.Length
-                            && FilesFolders.IsLocationPathString(QueryTextBox.Text))
+                            && QueryTextBox.CaretIndex == QueryTextBox.Text.Length)
                         {
-
-                            _viewModel.BackspaceCommand.Execute(null);
-                            e.Handled = true;
+                            var queryWithoutActionKeyword = 
+                                QueryBuilder.Build(QueryTextBox.Text.Trim(), PluginManager.NonGlobalPlugins).Search;
+                            
+                            if (FilesFolders.IsLocationPathString(queryWithoutActionKeyword))
+                            {
+                                _viewModel.BackspaceCommand.Execute(null);
+                                e.Handled = true;
+                            }
                         }
                     }
                     break;

Flow.Launcher/ViewModel/MainViewModel.cs

@@ -254,10 +254,14 @@ private void InitializeKeyCommands()
 
             BackspaceCommand = new RelayCommand(index =>
             {
-                var path = QueryText;
+                var query = QueryBuilder.Build(QueryText.Trim(), PluginManager.NonGlobalPlugins);
 
                 // GetPreviousExistingDirectory does not require trailing '\', otherwise will return empty string
-                ChangeQueryText(FilesFolders.GetPreviousExistingDirectory(FilesFolders.IsLocationPathString, path.TrimEnd('\\')));
+                var path = FilesFolders.GetPreviousExistingDirectory((_) => true, query.Search.TrimEnd('\\'));
+
+                var actionKeyword = string.IsNullOrEmpty(query.ActionKeyword) ? string.Empty : $"{query.ActionKeyword} ";
+
+                ChangeQueryText($"{actionKeyword}{path}");
             });
 
             LoadContextMenuCommand = new RelayCommand(_ =>