[Fabric] Added UIA Event Triggers for accessibilityAnnotation Property Changes

change/react-native-windows-a648cb52-86ff-47b1-b2be-04d168a7f110.json

@@ -0,0 +1,7 @@
+{
+  "type": "prerelease",
+  "comment": "Added UIA Event Triggers for accessibilityAnnotation Property Changes",
+  "packageName": "react-native-windows",
+  "email": "[email protected]",
+  "dependentChangeType": "patch"
+}

vnext/Microsoft.ReactNative/Fabric/Composition/CompositionViewComponentView.cpp

@@ -831,6 +831,10 @@ void ComponentView::updateAccessibilityProps(
       oldViewProps.accessibilityValue.text,
       newViewProps.accessibilityValue.text);
 
+  // Handle annotation properties with single call
+  winrt::Microsoft::ReactNative::implementation::UpdateUiaPropertiesForAnnotation(
+      EnsureUiaProvider(), oldViewProps.accessibilityAnnotation, newViewProps.accessibilityAnnotation);
+
   if ((oldViewProps.accessibilityState.has_value() && oldViewProps.accessibilityState->selected.has_value()) !=
       ((newViewProps.accessibilityState.has_value() && newViewProps.accessibilityState->selected.has_value()))) {
     auto compProvider =

vnext/Microsoft.ReactNative/Fabric/Composition/UiaHelpers.cpp

@@ -175,6 +175,15 @@ void UpdateUiaProperty(winrt::IInspectable provider, PROPERTYID propId, int oldV
   UiaRaiseAutomationPropertyChangedEvent(spProviderSimple.get(), propId, CComVariant(oldValue), CComVariant(newValue));
 }
 
+void UpdateUiaProperty(winrt::IInspectable provider, PROPERTYID propId, long oldValue, long newValue) noexcept {
+  auto spProviderSimple = provider.try_as<IRawElementProviderSimple>();
+
+  if (spProviderSimple == nullptr || oldValue == newValue || !WasUiaPropertyAdvised(spProviderSimple, propId))
+    return;
+
+  UiaRaiseAutomationPropertyChangedEvent(spProviderSimple.get(), propId, CComVariant(oldValue), CComVariant(newValue));
+}
+
 void UpdateUiaProperty(
     winrt::IInspectable provider,
     PROPERTYID propId,
@@ -199,6 +208,29 @@ void UpdateUiaProperty(
   UpdateUiaProperty(provider, propId, oldData, newData);
 }
 
+void UpdateUiaPropertiesForAnnotation(
+    winrt::IInspectable provider,
+    const std::optional<facebook::react::AccessibilityAnnotation> &oldAnnotation,
+    const std::optional<facebook::react::AccessibilityAnnotation> &newAnnotation) noexcept {
+  // if no value fall back to a default value.
+  const auto &old_annotation = oldAnnotation.value_or(facebook::react::AccessibilityAnnotation());
+  const auto &new_annotation = newAnnotation.value_or(facebook::react::AccessibilityAnnotation());
+
+  // Update all annotation properties
+  UpdateUiaProperty(
+      provider,
+      UIA_AnnotationAnnotationTypeIdPropertyId,
+      GetAnnotationTypeId(old_annotation.typeID),
+      GetAnnotationTypeId(new_annotation.typeID));
+
+  UpdateUiaProperty(
+      provider, UIA_AnnotationAnnotationTypeNamePropertyId, old_annotation.typeName, new_annotation.typeName);
+
+  UpdateUiaProperty(provider, UIA_AnnotationAuthorPropertyId, old_annotation.author, new_annotation.author);
+
+  UpdateUiaProperty(provider, UIA_AnnotationDateTimePropertyId, old_annotation.dateTime, new_annotation.dateTime);
+}
+
 long GetLiveSetting(const std::string &liveRegion) noexcept {
   if (liveRegion == "polite") {
     return LiveSetting::Polite;

vnext/Microsoft.ReactNative/Fabric/Composition/UiaHelpers.h

@@ -35,6 +35,12 @@ void UpdateUiaProperty(
     int oldValue,
     int newValue) noexcept;
 
+void UpdateUiaProperty(
+    winrt::Windows::Foundation::IInspectable provider,
+    PROPERTYID propId,
+    long oldValue,
+    long newValue) noexcept;
+
 void UpdateUiaProperty(
     winrt::Windows::Foundation::IInspectable provider,
     PROPERTYID propId,
@@ -47,6 +53,11 @@ void UpdateUiaProperty(
     const std::optional<std::string> &oldValue,
     const std::optional<std::string> &newValue) noexcept;
 
+void UpdateUiaPropertiesForAnnotation(
+    winrt::Windows::Foundation::IInspectable provider,
+    const std::optional<facebook::react::AccessibilityAnnotation> &oldAnnotation,
+    const std::optional<facebook::react::AccessibilityAnnotation> &newAnnotation) noexcept;
+
 long GetLiveSetting(const std::string &liveRegion) noexcept;
 
 long GetAnnotationTypeId(const std::string &annotationType) noexcept;