Improve Program plugin delete button logic

Author: Jack251970

Plugins/Flow.Launcher.Plugin.Program/Languages/en.xaml

@@ -48,6 +48,7 @@
 
     <system:String x:Key="flowlauncher_plugin_program_pls_select_program_source">Please select a program source</system:String>
     <system:String x:Key="flowlauncher_plugin_program_delete_program_source">Are you sure you want to delete the selected program sources?</system:String>
+    <system:String x:Key="flowlauncher_plugin_program_delete_program_source_not_user_added">Please select program sources that you added</system:String>
     <system:String x:Key="flowlauncher_plugin_program_duplicate_program_source">Another program source with the same location already exists.</system:String>
 
     <system:String x:Key="flowlauncher_plugin_program_edit_program_source_title">Program Source</system:String>

Plugins/Flow.Launcher.Plugin.Program/Views/ProgramSetting.xaml

@@ -203,6 +203,12 @@
                     Margin="{StaticResource SettingPanelItemLeftTopBottomMargin}"
                     Click="btnEditProgramSource_OnClick"
                     Content="{DynamicResource flowlauncher_plugin_program_edit}" />
+                <Button
+                    x:Name="btnDeleteProgramSource"
+                    MinWidth="100"
+                    Margin="{StaticResource SettingPanelItemLeftTopBottomMargin}"
+                    Click="btnDeleteProgramSource_OnClick"
+                    Content="{DynamicResource flowlauncher_plugin_program_delete}" />
                 <Button
                     x:Name="btnAddProgramSource"
                     MinWidth="100"

Plugins/Flow.Launcher.Plugin.Program/Views/ProgramSetting.xaml.cs

@@ -133,6 +133,7 @@ private void ViewRefresh()
             {
                 btnProgramSourceStatus.Visibility = Visibility.Hidden;
                 btnEditProgramSource.Visibility = Visibility.Hidden;
+                btnDeleteProgramSource.Visibility = Visibility.Hidden;
             }
 
             if (programSourceView.Items.Count > 0
@@ -141,6 +142,7 @@ private void ViewRefresh()
             {
                 btnProgramSourceStatus.Visibility = Visibility.Visible;
                 btnEditProgramSource.Visibility = Visibility.Visible;
+                btnDeleteProgramSource.Visibility = Visibility.Visible;
             }
 
             programSourceView.Items.Refresh();
@@ -270,8 +272,8 @@ private void programSourceView_Drop(object sender, DragEventArgs e)
 
                 if (directoriesToAdd.Count > 0)
                 {
-                    directoriesToAdd.ForEach(x => _settings.ProgramSources.Add(x));
-                    directoriesToAdd.ForEach(x => ProgramSettingDisplayList.Add(x));
+                    directoriesToAdd.ForEach(_settings.ProgramSources.Add);
+                    directoriesToAdd.ForEach(ProgramSettingDisplayList.Add);
 
                     ViewRefresh();
                     ReIndexing();
@@ -296,24 +298,12 @@ private async void btnProgramSourceStatus_OnClick(object sender, RoutedEventArgs
 
             if (selectedItems.Count == 0)
             {
-                string msg = context.API.GetTranslation("flowlauncher_plugin_program_pls_select_program_source");
+                var msg = context.API.GetTranslation("flowlauncher_plugin_program_pls_select_program_source");
                 context.API.ShowMsgBox(msg);
                 return;
             }
 
-            if (IsAllItemsUserAdded(selectedItems))
-            {
-                var msg = string.Format(
-                    context.API.GetTranslation("flowlauncher_plugin_program_delete_program_source"));
-
-                if (context.API.ShowMsgBox(msg, string.Empty, MessageBoxButton.YesNo) == MessageBoxResult.No)
-                {
-                    return;
-                }
-
-                DeleteProgramSources(selectedItems);
-            }
-            else if (HasMoreOrEqualEnabledItems(selectedItems))
+            if (HasMoreOrEqualEnabledItems(selectedItems))
             {
                 await ProgramSettingDisplay.SetProgramSourcesStatusAsync(selectedItems, false);
 
@@ -341,10 +331,9 @@ private void ProgramSourceView_PreviewMouseRightButtonUp(object sender, MouseBut
 
         private void GridViewColumnHeaderClickedHandler(object sender, RoutedEventArgs e)
         {
-            var headerClicked = e.OriginalSource as GridViewColumnHeader;
             ListSortDirection direction;
 
-            if (headerClicked != null)
+            if (e.OriginalSource is GridViewColumnHeader headerClicked)
             {
                 if (headerClicked.Role != GridViewColumnHeaderRole.Padding)
                 {
@@ -397,11 +386,7 @@ private void programSourceView_SelectionChanged(object sender, SelectionChangedE
                 .SelectedItems.Cast<ProgramSource>()
                 .ToList();
 
-            if (IsAllItemsUserAdded(selectedItems))
-            {
-                btnProgramSourceStatus.Content = context.API.GetTranslation("flowlauncher_plugin_program_delete");
-            }
-            else if (HasMoreOrEqualEnabledItems(selectedItems))
+            if (HasMoreOrEqualEnabledItems(selectedItems))
             {
                 btnProgramSourceStatus.Content = context.API.GetTranslation("flowlauncher_plugin_program_disable");
             }
@@ -420,15 +405,52 @@ private void programSourceView_MouseDoubleClick(object sender, MouseButtonEventA
             }
         }
 
+        [System.Diagnostics.CodeAnalysis.SuppressMessage("Usage", "VSTHRD100:Avoid async void methods", Justification = "<Pending>")]
+        private async void btnDeleteProgramSource_OnClick(object sender, RoutedEventArgs e)
+        {
+            var selectedItems = programSourceView
+                .SelectedItems.Cast<ProgramSource>()
+                .ToList();
+
+            if (selectedItems.Count == 0)
+            {
+                var msg = context.API.GetTranslation("flowlauncher_plugin_program_pls_select_program_source");
+                context.API.ShowMsgBox(msg);
+                return;
+            }
+
+            if (!IsAllItemsUserAdded(selectedItems))
+            {
+                var msg1 = context.API.GetTranslation("flowlauncher_plugin_program_delete_program_source_not_user_added");
+                context.API.ShowMsgBox(msg1);
+                return;
+            }
+
+            var msg2 = context.API.GetTranslation("flowlauncher_plugin_program_delete_program_source");
+            if (context.API.ShowMsgBox(msg2, string.Empty, MessageBoxButton.YesNo) == MessageBoxResult.No)
+            {
+                return;
+            }
+
+            DeleteProgramSources(selectedItems);
+
+            if (await selectedItems.IsReindexRequiredAsync())
+                ReIndexing();
+
+            programSourceView.SelectedItems.Clear();
+
+            ViewRefresh();
+        }
+
         private bool IsAllItemsUserAdded(List<ProgramSource> items)
         {
             return items.All(x => _settings.ProgramSources.Any(y => y.UniqueIdentifier == x.UniqueIdentifier));
         }
 
         private void ListView_SizeChanged(object sender, SizeChangedEventArgs e)
         {
-            ListView listView = sender as ListView;
-            GridView gView = listView.View as GridView;
+            var listView = sender as ListView;
+            var gView = listView.View as GridView;
 
             var workingWidth =
                 listView.ActualWidth - SystemParameters.VerticalScrollBarWidth; // take into account vertical scrollbar