Make screen reader announce successful MovePane and MoveTab actions

src/cascadia/TerminalApp/AppActionHandlers.cpp

@@ -8,6 +8,7 @@
 #include "../WinRTUtils/inc/WtExeUtils.h"
 #include "../../types/inc/utils.hpp"
 #include "Utils.h"
+#include <LibraryResources.h>
 
 using namespace winrt::Windows::ApplicationModel::DataTransfer;
 using namespace winrt::Windows::UI::Xaml;
@@ -209,7 +210,17 @@ namespace winrt::TerminalApp::implementation
         }
         else if (const auto& realArgs = args.ActionArgs().try_as<MovePaneArgs>())
         {
-            auto moved = _MovePane(realArgs);
+            const auto moved = _MovePane(realArgs);
+            if (moved)
+            {
+                if (auto autoPeer = Automation::Peers::FrameworkElementAutomationPeer::FromElement(*this))
+                {
+                    autoPeer.RaiseNotificationEvent(Automation::Peers::AutomationNotificationKind::ActionCompleted,
+                                                    Automation::Peers::AutomationNotificationProcessing::ImportantMostRecent,
+                                                    RS_(L"TerminalPage_PaneMovedAnnouncement"),
+                                                    L"TerminalPageMovePane" /* unique name for this notification category */);
+                }
+            }
             args.Handled(moved);
         }
     }
@@ -813,6 +824,16 @@ namespace winrt::TerminalApp::implementation
         if (const auto& realArgs = actionArgs.ActionArgs().try_as<MoveTabArgs>())
         {
             auto moved = _MoveTab(realArgs);
+            if (moved)
+            {
+                if (auto autoPeer = Automation::Peers::FrameworkElementAutomationPeer::FromElement(*this))
+                {
+                    autoPeer.RaiseNotificationEvent(Automation::Peers::AutomationNotificationKind::ActionCompleted,
+                                                    Automation::Peers::AutomationNotificationProcessing::ImportantMostRecent,
+                                                    RS_(L"TerminalPage_TabMovedAnnouncement"),
+                                                    L"TerminalPageMoveTab" /* unique name for this notification category */);
+                }
+            }
             actionArgs.Handled(moved);
         }
     }

src/cascadia/TerminalApp/Resources/en-US/Resources.resw

@@ -840,4 +840,10 @@
     <value>Run as Administrator</value>
     <comment>This text is displayed on context menu for profile entries in add new tab button.</comment>
   </data>
-</root>
+  <data name="TerminalPage_PaneMovedAnnouncement" xml:space="preserve">
+    <value>Pane moved successfully</value>
+  </data>
+  <data name="TerminalPage_TabMovedAnnouncement" xml:space="preserve">
+    <value>Tab moved successfully</value>
+  </data>
+</root>

src/cascadia/TerminalApp/TerminalPage.cpp

@@ -287,6 +287,11 @@ namespace winrt::TerminalApp::implementation
         ShowSetAsDefaultInfoBar();
     }
 
+    Windows::UI::Xaml::Automation::Peers::AutomationPeer TerminalPage::OnCreateAutomationPeer()
+    {
+        return Automation::Peers::FrameworkElementAutomationPeer(*this);
+    }
+
     // Method Description:
     // - This is a bit of trickiness: If we're running unelevated, and the user
     //   passed in only --elevate actions, the we don't _actually_ want to

src/cascadia/TerminalApp/TerminalPage.h

@@ -101,6 +101,7 @@ namespace winrt::TerminalApp::implementation
         void SetSettings(Microsoft::Terminal::Settings::Model::CascadiaSettings settings, bool needRefreshUI);
 
         void Create();
+        Windows::UI::Xaml::Automation::Peers::AutomationPeer OnCreateAutomationPeer();
 
         bool ShouldImmediatelyHandoffToElevated(const Microsoft::Terminal::Settings::Model::CascadiaSettings& settings) const;
         void HandoffToElevated(const Microsoft::Terminal::Settings::Model::CascadiaSettings& settings);