CmdPal: Added settings for limiting apps on top level searches (#40915)

Closes #40062

Adds a setting to limit the number of apps returned on top level
searches.

Can limit to none, 1, 5, 10, or 20.


https://github.com/user-attachments/assets/de60111f-fb02-4db6-9ae9-2f636c171b5b

src/modules/cmdpal/ext/Microsoft.CmdPal.Ext.Apps/AllAppsCommandProvider.cs

@@ -3,9 +3,7 @@
 // See the LICENSE file in the project root for more information.
 
 using System;
-using System.Collections.Generic;
 using System.Linq;
-using Microsoft.CmdPal.Ext.Apps.Programs;
 using Microsoft.CmdPal.Ext.Apps.Properties;
 using Microsoft.CmdPal.Ext.Apps.State;
 using Microsoft.CommandPalette.Extensions;
@@ -45,6 +43,28 @@ public partial class AllAppsCommandProvider : CommandProvider
         PinnedAppsManager.Instance.PinStateChanged += OnPinStateChanged;
     }
 
+    public static int TopLevelResultLimit
+    {
+        get
+        {
+            var limitSetting = AllAppsSettings.Instance.SearchResultLimit;
+
+            if (limitSetting is null)
+            {
+                return -1;
+            }
+
+            var quantity = -1;
+
+            if (int.TryParse(limitSetting, out var result))
+            {
+                quantity = result;
+            }
+
+            return quantity;
+        }
+    }
+
     public override ICommandItem[] TopLevelCommands() => [_listItem, .._page.GetPinnedApps()];
 
     public ICommandItem? LookupApp(string displayName)

src/modules/cmdpal/ext/Microsoft.CmdPal.Ext.Apps/AllAppsSettings.cs

@@ -20,6 +20,16 @@ public class AllAppsSettings : JsonSettingsManager, ISettingsInterface
 
     private static string Experimental(string propertyName) => $"{_namespace}.experimental.{propertyName}";
 
+    private static readonly List<ChoiceSetSetting.Choice> _searchResultLimitChoices =
+    [
+        new ChoiceSetSetting.Choice(Resources.limit_none, "-1"),
+        new ChoiceSetSetting.Choice(Resources.limit_0, "0"),
+        new ChoiceSetSetting.Choice(Resources.limit_1, "1"),
+        new ChoiceSetSetting.Choice(Resources.limit_5, "5"),
+        new ChoiceSetSetting.Choice(Resources.limit_10, "10"),
+        new ChoiceSetSetting.Choice(Resources.limit_20, "20"),
+    ];
+
 #pragma warning disable SA1401 // Fields should be private
     internal static AllAppsSettings Instance = new();
 #pragma warning restore SA1401 // Fields should be private
@@ -42,6 +52,14 @@ public class AllAppsSettings : JsonSettingsManager, ISettingsInterface
 
     public bool EnablePathEnvironmentVariableSource => _enablePathEnvironmentVariableSource.Value;
 
+    private readonly ChoiceSetSetting _searchResultLimitSource = new(
+        Namespaced(nameof(SearchResultLimit)),
+        Resources.limit_fallback_results_source,
+        Resources.limit_fallback_results_source_description,
+        _searchResultLimitChoices);
+
+    public string SearchResultLimit => _searchResultLimitSource.Value ?? string.Empty;
+
     private readonly ToggleSetting _enableStartMenuSource = new(
         Namespaced(nameof(EnableStartMenuSource)),
         Resources.enable_start_menu_source,
@@ -87,6 +105,7 @@ public class AllAppsSettings : JsonSettingsManager, ISettingsInterface
         Settings.Add(_enableDesktopSource);
         Settings.Add(_enableRegistrySource);
         Settings.Add(_enablePathEnvironmentVariableSource);
+        Settings.Add(_searchResultLimitSource);
 
         // Load settings from file upon initialization
         LoadSettings();

src/modules/cmdpal/ext/Microsoft.CmdPal.Ext.Apps/Properties/Resources.Designer.cs

@@ -159,6 +159,78 @@ namespace Microsoft.CmdPal.Ext.Apps.Properties {
             }
         }
         
+        /// <summary>
+        ///   Looks up a localized string similar to 0.
+        /// </summary>
+        internal static string limit_0 {
+            get {
+                return ResourceManager.GetString("limit_0", resourceCulture);
+            }
+        }
+        
+        /// <summary>
+        ///   Looks up a localized string similar to 1.
+        /// </summary>
+        internal static string limit_1 {
+            get {
+                return ResourceManager.GetString("limit_1", resourceCulture);
+            }
+        }
+        
+        /// <summary>
+        ///   Looks up a localized string similar to 10.
+        /// </summary>
+        internal static string limit_10 {
+            get {
+                return ResourceManager.GetString("limit_10", resourceCulture);
+            }
+        }
+        
+        /// <summary>
+        ///   Looks up a localized string similar to 20.
+        /// </summary>
+        internal static string limit_20 {
+            get {
+                return ResourceManager.GetString("limit_20", resourceCulture);
+            }
+        }
+        
+        /// <summary>
+        ///   Looks up a localized string similar to 5.
+        /// </summary>
+        internal static string limit_5 {
+            get {
+                return ResourceManager.GetString("limit_5", resourceCulture);
+            }
+        }
+        
+        /// <summary>
+        ///   Looks up a localized string similar to Limit the number of applications returned from the top level.
+        /// </summary>
+        internal static string limit_fallback_results_source {
+            get {
+                return ResourceManager.GetString("limit_fallback_results_source", resourceCulture);
+            }
+        }
+        
+        /// <summary>
+        ///   Looks up a localized string similar to Limit fallback results to n apps.
+        /// </summary>
+        internal static string limit_fallback_results_source_description {
+            get {
+                return ResourceManager.GetString("limit_fallback_results_source_description", resourceCulture);
+            }
+        }
+        
+        /// <summary>
+        ///   Looks up a localized string similar to None.
+        /// </summary>
+        internal static string limit_none {
+            get {
+                return ResourceManager.GetString("limit_none", resourceCulture);
+            }
+        }
+        
         /// <summary>
         ///   Looks up a localized string similar to Open containing folder.
         /// </summary>

src/modules/cmdpal/ext/Microsoft.CmdPal.Ext.Apps/Properties/Resources.resx

@@ -198,4 +198,28 @@
   <data name="unpin_app" xml:space="preserve">
     <value>Unpin</value>
   </data>
-</root>
+  <data name="limit_1" xml:space="preserve">
+    <value>1</value>
+  </data>
+  <data name="limit_5" xml:space="preserve">
+    <value>5</value>
+  </data>
+  <data name="limit_10" xml:space="preserve">
+    <value>10</value>
+  </data>
+  <data name="limit_20" xml:space="preserve">
+    <value>20</value>
+  </data>
+  <data name="limit_fallback_results_source" xml:space="preserve">
+    <value>Limit the number of applications returned from the top level</value>
+  </data>
+  <data name="limit_fallback_results_source_description" xml:space="preserve">
+    <value>Limit fallback results to n apps</value>
+  </data>
+  <data name="limit_0" xml:space="preserve">
+    <value>0</value>
+  </data>
+  <data name="limit_none" xml:space="preserve">
+    <value>Unlimited</value>
+  </data>
+</root>