Improve search performance

Author: Jack251970

Flow.Launcher/ViewModel/MainViewModel.cs

@@ -1073,7 +1073,9 @@ private async Task QueryResultsAsync(int? searchDelay, bool isReQuery = false, b
 
             var query = ConstructQuery(QueryText, Settings.CustomShortcuts, Settings.BuiltinShortcuts);
 
-            if (query == null) // shortcut expanded
+            var plugins = PluginManager.ValidPluginsForQuery(query);
+
+            if (query == null || plugins.Count == 0) // shortcut expanded
             {
                 Results.Clear();
                 Results.Visibility = Visibility.Collapsed;
@@ -1082,6 +1084,18 @@ private async Task QueryResultsAsync(int? searchDelay, bool isReQuery = false, b
                 SearchIconVisibility = Visibility.Visible;
                 return;
             }
+            else if (plugins.Count == 1)
+            {
+                PluginIconPath = plugins.Single().Metadata.IcoPath;
+                PluginIconSource = await ImageLoader.LoadAsync(PluginIconPath);
+                SearchIconVisibility = Visibility.Hidden;
+            }
+            else
+            {
+                PluginIconPath = null;
+                PluginIconSource = null;
+                SearchIconVisibility = Visibility.Visible;
+            }
 
             _updateSource?.Dispose();
 
@@ -1106,21 +1120,6 @@ private async Task QueryResultsAsync(int? searchDelay, bool isReQuery = false, b
 
             _lastQuery = query;
 
-            var plugins = PluginManager.ValidPluginsForQuery(query);
-
-            if (plugins.Count == 1)
-            {
-                PluginIconPath = plugins.Single().Metadata.IcoPath;
-                PluginIconSource = await ImageLoader.LoadAsync(PluginIconPath);
-                SearchIconVisibility = Visibility.Hidden;
-            }
-            else
-            {
-                PluginIconPath = null;
-                PluginIconSource = null;
-                SearchIconVisibility = Visibility.Visible;
-            }
-
             if (query.ActionKeyword == Plugin.Query.GlobalPluginWildcardSign)
             {
                 // Wait 45 millisecond for query change in global query