Announcing removing widgets from dashboard

src/Views/ShellPage.xaml

@@ -126,7 +126,7 @@
              from reading the control value. -->
         <TextBlock Width="0" Height="0" IsTabStop="False" Text="{x:Bind ViewModel.AnnouncementText, Mode=OneWay}">
             <i:Interaction.Behaviors>
-                <behaviors:TextBlockAutomationBehavior RaiseLiveRegionChangedEvent="True" LiveSetting="Polite" />
+                <behaviors:TextBlockAutomationBehavior RaiseLiveRegionChangedEvent="True" LiveSetting="Assertive" />
             </i:Interaction.Behaviors>
         </TextBlock>
     </Grid>

tools/Dashboard/DevHome.Dashboard/Controls/WidgetControl.xaml.cs

@@ -105,6 +105,7 @@ private async void OnRemoveWidgetClick(object sender, RoutedEventArgs e)
                 var widgetIdToDelete = widgetViewModel.Widget.Id;
                 var widgetToDelete = widgetViewModel.Widget;
                 _log.Debug($"User removed widget, delete widget {widgetIdToDelete}");
+                widgetViewModel.AnnounceDeleted();
                 DashboardView.PinnedWidgets.Remove(widgetViewModel);
                 try
                 {

tools/Dashboard/DevHome.Dashboard/Strings/en-us/Resources.resw

@@ -1,5 +1,64 @@
 <?xml version="1.0" encoding="utf-8"?>
 <root>
+  <!-- 
+    Microsoft ResX Schema 
+
+    Version 2.0
+
+    The primary goals of this format is to allow a simple XML format 
+    that is mostly human readable. The generation and parsing of the 
+    various data types are done through the TypeConverter classes 
+    associated with the data types.
+
+    Example:
+
+    ... ado.net/XML headers & schema ...
+    <resheader name="resmimetype">text/microsoft-resx</resheader>
+    <resheader name="version">2.0</resheader>
+    <resheader name="reader">System.Resources.ResXResourceReader, System.Windows.Forms, ...</resheader>
+    <resheader name="writer">System.Resources.ResXResourceWriter, System.Windows.Forms, ...</resheader>
+    <data name="Name1"><value>this is my long string</value><comment>this is a comment</comment></data>
+    <data name="Color1" type="System.Drawing.Color, System.Drawing">Blue</data>
+    <data name="Bitmap1" mimetype="application/x-microsoft.net.object.binary.base64">
+        <value>[base64 mime encoded serialized .NET Framework object]</value>
+    </data>
+    <data name="Icon1" type="System.Drawing.Icon, System.Drawing" mimetype="application/x-microsoft.net.object.bytearray.base64">
+        <value>[base64 mime encoded string representing a byte array form of the .NET Framework object]</value>
+        <comment>This is a comment</comment>
+    </data>
+
+    There are any number of "resheader" rows that contain simple 
+    name/value pairs.
+
+    Each data row contains a name, and value. The row also contains a 
+    type or mimetype. Type corresponds to a .NET class that support 
+    text/value conversion through the TypeConverter architecture. 
+    Classes that don't support this are serialized and stored with the 
+    mimetype set.
+
+    The mimetype is used for serialized objects, and tells the 
+    ResXResourceReader how to depersist the object. This is currently not 
+    extensible. For a given mimetype the value must be set accordingly:
+
+    Note - application/x-microsoft.net.object.binary.base64 is the format 
+    that the ResXResourceWriter will generate, however the reader can 
+    read any of the formats listed below.
+
+    mimetype: application/x-microsoft.net.object.binary.base64
+    value   : The object must be serialized with 
+            : System.Runtime.Serialization.Formatters.Binary.BinaryFormatter
+            : and then encoded with base64 encoding.
+
+    mimetype: application/x-microsoft.net.object.soap.base64
+    value   : The object must be serialized with 
+            : System.Runtime.Serialization.Formatters.Soap.SoapFormatter
+            : and then encoded with base64 encoding.
+
+    mimetype: application/x-microsoft.net.object.bytearray.base64
+    value   : The object must be serialized into a byte array 
+            : using a System.ComponentModel.TypeConverter
+            : and then encoded with base64 encoding.
+    -->
   <xsd:schema id="root" xmlns="" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:msdata="urn:schemas-microsoft-com:xml-msdata">
     <xsd:import namespace="http://www.w3.org/XML/1998/namespace" />
     <xsd:element name="root" msdata:IsDataSet="true">
@@ -190,4 +249,8 @@
     <value>Close</value>
     <comment>Text for a button to close a content dialog.</comment>
   </data>
-</root>
+  <data name="WidgetRemoved" xml:space="preserve">
+    <value>Widget removed</value>
+    <comment>This is said by narrator whenever a widget is removed</comment>
+  </data>
+</root>

tools/Dashboard/DevHome.Dashboard/ViewModels/WidgetViewModel.cs

@@ -42,6 +42,7 @@ public partial class WidgetViewModel : ObservableObject
 
     private readonly WindowEx _windowEx;
     private readonly WidgetAdaptiveCardRenderingService _renderingService;
+    private readonly IScreenReaderService _screenReaderService;
 
     private RenderedAdaptiveCard _renderedCard;
 
@@ -98,9 +99,11 @@ public WidgetViewModel(
         WidgetSize widgetSize,
         WidgetDefinition widgetDefinition,
         WidgetAdaptiveCardRenderingService adaptiveCardRenderingService,
+        IScreenReaderService screenReaderService,
         WindowEx windowEx)
     {
         _renderingService = adaptiveCardRenderingService;
+        _screenReaderService = screenReaderService;
         _windowEx = windowEx;
 
         Widget = widget;
@@ -329,6 +332,12 @@ private async void HandleAdaptiveAction(RenderedAdaptiveCard sender, AdaptiveAct
         // https://github.com/microsoft/devhome/issues/644
     }
 
+    public void AnnounceDeleted()
+    {
+        var stringResource = new StringResource("DevHome.Dashboard.pri", "DevHome.Dashboard/Resources");
+        _screenReaderService.Announce(stringResource.GetLocalized("WidgetRemoved"));
+    }
+
     private async void HandleWidgetUpdated(Widget sender, WidgetUpdatedEventArgs args)
     {
         _log.Debug($"HandleWidgetUpdated for widget {sender.Id}");