From 2b0c29e74ccb51ae627dfcc56346104ffe5aa4f3 Mon Sep 17 00:00:00 2001
From: Khan Winter <35942988+thecoolwinter@users.noreply.github.com>
Date: Sun, 10 Nov 2024 15:02:56 -0600
Subject: [PATCH] Scroll Cursor Visible While Typing (#55)

---
 .../TextView/TextView+ReplaceCharacters.swift               | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/Sources/CodeEditTextView/TextView/TextView+ReplaceCharacters.swift b/Sources/CodeEditTextView/TextView/TextView+ReplaceCharacters.swift
index 4578744a..06949b21 100644
--- a/Sources/CodeEditTextView/TextView/TextView+ReplaceCharacters.swift
+++ b/Sources/CodeEditTextView/TextView/TextView+ReplaceCharacters.swift
@@ -42,6 +42,12 @@ extension TextView {
         layoutManager.endTransaction()
         selectionManager.notifyAfterEdit()
         NotificationCenter.default.post(name: Self.textDidChangeNotification, object: self)
+
+        // `scrollSelectionToVisible` is a little expensive to call every time. Instead we just check if the first
+        // selection is entirely visible. `.contains` checks that all points in the rect are inside. 
+        if let selection = selectionManager.textSelections.first, !visibleRect.contains(selection.boundingRect) {
+            scrollSelectionToVisible()
+        }
     }
 
     /// Replace the characters in a range with a new string.