Fabric: Exposing RCTParagraphComponentView::attributedText

Summary:
The new prop on RCTParagraphComponentView is meant to be used only by external introspection tools, not the RN core.

Changelog: [Internal] Fabric-specific internal change.

Reviewed By: nscoding

Differential Revision: D20523078

fbshipit-source-id: 4c457d070fd2c172d681c5aa7f731d2d52bba291

React/Fabric/Mounting/ComponentViews/Text/RCTParagraphComponentView.h

@@ -11,11 +11,17 @@
 
 NS_ASSUME_NONNULL_BEGIN
 
-/**
+/*
  * UIView class for <Paragraph> component.
  */
 @interface RCTParagraphComponentView : RCTViewComponentView
 
+/*
+ * Returns an `NSAttributedString` representing the content of the component.
+ * To be only used by external introspection and debug tools.
+ */
+@property (nonatomic, nullable, readonly) NSAttributedString *attributedText;
+
 @end
 
 NS_ASSUME_NONNULL_END

React/Fabric/Mounting/ComponentViews/Text/RCTParagraphComponentView.mm

@@ -13,6 +13,7 @@
 #import <react/components/text/RawTextComponentDescriptor.h>
 #import <react/components/text/TextComponentDescriptor.h>
 #import <react/graphics/Geometry.h>
+#import <react/textlayoutmanager/RCTAttributedTextUtils.h>
 #import <react/textlayoutmanager/RCTTextLayoutManager.h>
 #import <react/textlayoutmanager/TextLayoutManager.h>
 #import <react/utils/ManagedObjectWrapper.h>
@@ -41,6 +42,27 @@ - (instancetype)initWithFrame:(CGRect)frame
   return self;
 }
 
+- (NSString *)description
+{
+  NSString *superDescription = [super description];
+
+  // Cutting the last `>` character.
+  if (superDescription.length > 0 && [superDescription characterAtIndex:superDescription.length - 1] == '>') {
+    superDescription = [superDescription substringToIndex:superDescription.length - 1];
+  }
+
+  return [NSString stringWithFormat:@"%@; attributedText = %@>", superDescription, self.attributedText];
+}
+
+- (NSAttributedString *_Nullable)attributedText
+{
+  if (!_state) {
+    return nil;
+  }
+
+  return RCTNSAttributedStringFromAttributedString(_state->getData().attributedString);
+}
+
 #pragma mark - RCTComponentViewProtocol
 
 + (ComponentDescriptorProvider)componentDescriptorProvider