Fix null exception when result is from context menu & Add documents

Author: Jack251970

Flow.Launcher/Storage/TopMostRecord.cs

@@ -12,6 +12,8 @@ public class TopMostRecord
 
         internal bool IsTopMost(Result result)
         {
+            // origin query is null when user select the context menu item directly of one item from query list
+            // in this case, we do not need to check if the result is top most
             if (records.IsEmpty || result.OriginQuery == null ||
                 !records.TryGetValue(result.OriginQuery.RawQuery, out var value))
             {

Flow.Launcher/Storage/UserSelectedRecord.cs

@@ -51,6 +51,8 @@ private static int GenerateResultHashCode(Result result)
 
         private static int GenerateQueryAndResultHashCode(Query query, Result result)
         {
+            // query is null when user select the context menu item directly of one item from query list
+            // so we only need to consider the result
             if (query == null)
             {
                 return GenerateResultHashCode(result);

Flow.Launcher/ViewModel/MainViewModel.cs

@@ -396,11 +396,15 @@ private async Task OpenResultAsync(string index)
                 })
                 .ConfigureAwait(false);
 
-
             if (SelectedIsFromQueryResults())
             {
                 _userSelectedRecord.Add(result);
-                _history.Add(result.OriginQuery.RawQuery);
+                // origin query is null when user select the context menu item directly of one item from query list
+                // so we don't want to add it to history
+                if (result.OriginQuery != null)
+                {
+                    _history.Add(result.OriginQuery.RawQuery);
+                }
                 lastHistoryIndex = 1;
             }
 
@@ -985,9 +989,9 @@ private void QueryContextMenu()
             {
                 List<Result> results;
 
-                    results = PluginManager.GetContextMenusForPlugin(selected);
-                    results.Add(ContextMenuTopMost(selected));
-                    results.Add(ContextMenuPluginInfo(selected.PluginID));
+                results = PluginManager.GetContextMenusForPlugin(selected);
+                results.Add(ContextMenuTopMost(selected));
+                results.Add(ContextMenuPluginInfo(selected.PluginID));
 
                 if (!string.IsNullOrEmpty(query))
                 {