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Defer the initialization of accessibility providers #14644

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#14756
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Defer the initialization of accessibility providers#14644
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#14756
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copilot-swe-agent
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Area: AccessibilityArea: PerformancePR Follow-upIssue created in response to PR Feedback (labeled so we can gather telemetry on follow-up)enhancementgood first issue
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@vineethkuttan

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@vineethkuttan
vineethkuttan
opened on May 7, 2025

react-native-windows/vnext/Microsoft.ReactNative/Fabric/Composition/CompositionDynamicAutomationProvider.cpp

Lines 34 to 44 in aa48a7a

if (strongView.try_as<winrt::Microsoft::ReactNative::Composition::implementation::WindowsTextInputComponentView>() ||
strongView.try_as<winrt::Microsoft::ReactNative::Composition::implementation::ParagraphComponentView>()) {
m_textProvider = winrt::make<CompositionTextProvider>(
strongView.as<winrt::Microsoft::ReactNative::Composition::ComponentView>(), this)
.try_as<ITextProvider2>();
}
if (strongView.try_as<winrt::Microsoft::ReactNative::Composition::implementation::ViewComponentView>()) {
m_annotationProvider = winrt::make<CompositionAnnotationProvider>(
strongView.as<winrt::Microsoft::ReactNative::Composition::ComponentView>(), this)
.try_as<IAnnotationProvider>();

If the UIA agent does not request these patterns we shouldn't create these providers. But we are trying to create these providers in the constructor itself.

Changes required:

Move the above part of code to here, where we can create the providers, only if the UIA request for it.

react-native-windows/vnext/Microsoft.ReactNative/Fabric/Composition/CompositionDynamicAutomationProvider.cpp

Lines 282 to 295 in aa48a7a

if (patternId == UIA_TextPatternId &&
(strongView.try_as<winrt::Microsoft::ReactNative::Composition::implementation::WindowsTextInputComponentView>() ||
strongView.try_as<winrt::Microsoft::ReactNative::Composition::implementation::ParagraphComponentView>())) {
m_textProvider.as<IUnknown>().copy_to(pRetVal);
}
if (patternId == UIA_TextPattern2Id &&
strongView.try_as<winrt::Microsoft::ReactNative::Composition::implementation::WindowsTextInputComponentView>()) {
m_textProvider.as<IUnknown>().copy_to(pRetVal);
}
if (patternId == UIA_AnnotationPatternId &&
strongView.try_as<winrt::Microsoft::ReactNative::Composition::implementation::ViewComponentView>() &&
accessibilityAnnotationHasValue(props->accessibilityAnnotation)) {
m_annotationProvider.as<IUnknown>().copy_to(pRetVal);

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Area: AccessibilityArea: PerformancePR Follow-upIssue created in response to PR Feedback (labeled so we can gather telemetry on follow-up)enhancementgood first issue

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