From adfcf05fe498b5ab6554e9b3fd399d7dd3ade79b Mon Sep 17 00:00:00 2001
From: Hailey <me@haileyok.com>
Date: Thu, 18 Jan 2024 21:50:21 -0800
Subject: [PATCH] onTextLayout event

---
 .../ios/RNUITextView.swift                    | 24 ++++++++++++++++---
 .../ios/RNUITextViewShadow.swift              | 18 --------------
 2 files changed, 21 insertions(+), 21 deletions(-)

diff --git a/modules/react-native-ui-text-view/ios/RNUITextView.swift b/modules/react-native-ui-text-view/ios/RNUITextView.swift
index ba3ab8257a..453838a3eb 100644
--- a/modules/react-native-ui-text-view/ios/RNUITextView.swift
+++ b/modules/react-native-ui-text-view/ios/RNUITextView.swift
@@ -3,10 +3,15 @@ class RNUITextView: UIView {
 
   @objc var numberOfLines: Int = 0 {
     didSet {
-      print(numberOfLines)
       textView.textContainer.maximumNumberOfLines = numberOfLines
     }
   }
+  @objc var selectable: Bool = true {
+    didSet {
+      textView.isSelectable = selectable
+    }
+  }
+  @objc var onTextLayout: RCTDirectEventBlock?
 
   override init(frame: CGRect) {
     if #available(iOS 16.0, *) {
@@ -52,6 +57,21 @@ class RNUITextView: UIView {
     self.textView.frame.size = size
     self.textView.textContainer.maximumNumberOfLines = numberOfLines
     self.textView.attributedText = string
+
+    if let onTextLayout = self.onTextLayout {
+      var lines: [String] = []
+      textView.layoutManager.enumerateLineFragments(
+        forGlyphRange: NSRange(location: 0, length: textView.attributedText.length))
+      { (rect, usedRect, textContainer, glyphRange, stop) in
+        let characterRange = self.textView.layoutManager.characterRange(forGlyphRange: glyphRange, actualGlyphRange: nil)
+        let line = (self.textView.text as NSString).substring(with: characterRange)
+        lines.append(line)
+      }
+
+      onTextLayout([
+        "lines": lines
+      ])
+    }
   }
 
   @IBAction func callOnPress(_ sender: UITapGestureRecognizer) -> Void {
@@ -82,8 +102,6 @@ class RNUITextView: UIView {
       fractionOfDistanceBetweenInsertionPoints: nil
     )
 
-    let text = textView.attributedText.string
-
     for child in self.subviews {
       guard let child = child as? RNUITextViewChild, let text = child.text else {
         continue
diff --git a/modules/react-native-ui-text-view/ios/RNUITextViewShadow.swift b/modules/react-native-ui-text-view/ios/RNUITextViewShadow.swift
index 1a0ae22274..200a99bc1a 100644
--- a/modules/react-native-ui-text-view/ios/RNUITextViewShadow.swift
+++ b/modules/react-native-ui-text-view/ios/RNUITextViewShadow.swift
@@ -105,24 +105,6 @@ class RNUITextViewShadow: RCTShadowView {
         range: NSMakeRange(0, string.length)
       )
 
-//      if let textDecorationLine = child.textDecorationLine {
-//        if textDecorationLine == .underline || textDecorationLine == .underlineLineThrough {
-//          string.addAttribute(
-//            NSAttributedString.Key.underlineStyle,
-//            value: NSUnderlineStyle.single.rawValue,
-//            range: NSMakeRange(0, string.length)
-//          )
-//        }
-//
-//        if textDecorationLine == .lineThrough || textDecorationLine == .underlineLineThrough {
-//          string.addAttribute(
-//            NSAttributedString.Key.strikethroughStyle,
-//            value: NSUnderlineStyle.single.rawValue,
-//            range: NSMakeRange(0, string.length)
-//          )
-//        }
-//      }
-
       finalAttributedString.append(string)
     }