Revert SelectionManager Changes

Author: thecoolwinter

Sources/CodeEditTextView/TextSelectionManager/TextSelectionManager+Update.swift

@@ -8,22 +8,22 @@
 import Foundation
 import AppKit
 
-extension TextSelectionManager: NSTextStorageDelegate {
-    public func textStorage(
-        _ textStorage: NSTextStorage,
-        didProcessEditing editedMask: NSTextStorageEditActions,
-        range editedRange: NSRange,
-        changeInLength delta: Int
-    ) {
-        guard editedMask.contains(.editedCharacters) else { return }
-
+extension TextSelectionManager {
+    public func didReplaceCharacters(in range: NSRange, replacementLength: Int) {
+        let delta = replacementLength == 0 ? -range.length : replacementLength
         for textSelection in self.textSelections {
-            // If the text selection is ahead of the edited range, move it back by the range's length
-            if textSelection.range.location > editedRange.max {
-                textSelection.range.location += delta
+            if textSelection.range.location > range.max {
+                textSelection.range.location = max(0, textSelection.range.location + delta)
+
                 textSelection.range.length = 0
-            } else if textSelection.range.intersection(editedRange) != nil {
-                textSelection.range.location = editedRange.max
+            } else if textSelection.range.intersection(range) != nil
+                        || textSelection.range == range
+                        || (textSelection.range.isEmpty && textSelection.range.location == range.max) {
+                if replacementLength > 0 {
+                    textSelection.range.location = range.location + replacementLength
+                } else {
+                    textSelection.range.location = range.location
+                }
                 textSelection.range.length = 0
             } else {
                 textSelection.range.length = 0
@@ -39,8 +39,6 @@ extension TextSelectionManager: NSTextStorageDelegate {
                 allRanges.insert(selection.range)
             }
         }
-
-        notifyAfterEdit()
     }
 
     func notifyAfterEdit() {

Sources/CodeEditTextView/TextView/TextView+ReplaceCharacters.swift

@@ -31,6 +31,7 @@ extension TextView {
                 in: range,
                 with: NSAttributedString(string: string, attributes: typingAttributes)
             )
+            selectionManager.didReplaceCharacters(in: range, replacementLength: (string as NSString).length)
 
             delegate?.textView(self, didReplaceContentsIn: range, with: string)
         }

Sources/CodeEditTextView/TextView/TextView.swift

@@ -341,7 +341,6 @@ public class TextView: NSView, NSTextContent {
 
         selectionManager = setUpSelectionManager()
         selectionManager.useSystemCursor = useSystemCursor
-        storageDelegate.addDelegate(selectionManager)
 
         _undoManager = CEUndoManager(textView: self)