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src/CalcViewModel/Common/Automation/NotificationHost.h

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+// Copyright (c) Microsoft Corporation. All rights reserved.
+// Licensed under the MIT License.
+
+#pragma once
+#include "INarratorAnnouncementHost.h"
+
+// Declaration of the NotificationHost class.
+// This class announces NarratorAnnouncements using the RaiseNotification API
+// available in RS3.
+
+namespace CalculatorApp::Common::Automation
+{
+    public ref class NotificationHost sealed : public INarratorAnnouncementHost
+    {
+    public:
+        NotificationHost();
+
+        virtual bool IsHostAvailable();
+        virtual INarratorAnnouncementHost^ MakeHost();
+
+        virtual void Announce(NarratorAnnouncement^ announcement);
+
+    private:
+        static Windows::UI::Xaml::Automation::Peers::AutomationNotificationKind GetWindowsNotificationKind(
+            CalculatorApp::Common::Automation::AutomationNotificationKind customKindType);
+
+        static Windows::UI::Xaml::Automation::Peers::AutomationNotificationProcessing GetWindowsNotificationProcessing(
+            CalculatorApp::Common::Automation::AutomationNotificationProcessing customProcessingType);
+
+    private:
+        Windows::UI::Xaml::UIElement^ m_host;
+    };
+}
+