1  // Copyright (c) Microsoft Corporation
 2  // The Microsoft Corporation licenses this file to you under the MIT license.
 3  // See the LICENSE file in the project root for more information.
 4  
 5  using System.Collections.Generic;
 6  using System.Windows;
 7  using System.Windows.Automation.Peers;
 8  using System.Windows.Controls;
 9  
10  namespace PowerLauncher
11  {
12      public sealed class CustomSearchBox : TextBox
13      {
14          public List<UIElement> ControlledElements { get; } = new List<UIElement>();
15  
16          protected override AutomationPeer OnCreateAutomationPeer()
17          {
18              return new AutoSuggestTextBoxAutomationPeer(this);
19          }
20  
21          internal sealed class AutoSuggestTextBoxAutomationPeer : TextBoxAutomationPeer
22          {
23              public AutoSuggestTextBoxAutomationPeer(CustomSearchBox owner)
24                  : base(owner)
25              {
26              }
27  
28              protected override List<AutomationPeer> GetControlledPeersCore()
29              {
30                  var controlledPeers = new List<AutomationPeer>();
31                  foreach (UIElement controlledElement in ((CustomSearchBox)Owner).ControlledElements)
32                  {
33                      controlledPeers.Add(UIElementAutomationPeer.CreatePeerForElement(controlledElement));
34                  }
35  
36                  return controlledPeers;
37              }
38          }
39      }
40  }