Make cursor appear when clicking after the last line of a file (#56)

Sources/CodeEditTextView/CEScrollView.swift

@@ -0,0 +1,28 @@
+//
+//  CEScrollView.swift
+//  
+//
+//  Created by Renan Greca on 18/02/23.
+//
+
+import AppKit
+import STTextView
+
+class CEScrollView: NSScrollView {
+
+    override func mouseDown(with event: NSEvent) {
+
+        if let textView = self.documentView as? STTextView,
+            !textView.visibleRect.contains(event.locationInWindow) {
+            // If the `scrollView` was clicked, but the click did not happen within the `textView`,
+            // set cursor to the last index of the `textView`.
+
+            let endLocation = textView.textLayoutManager.documentRange.endLocation
+            let range = NSTextRange(location: endLocation)
+            _ = textView.becomeFirstResponder()
+            textView.setSelectedRange(range)
+        }
+
+        super.mouseDown(with: event)
+    }
+}

Sources/CodeEditTextView/STTextViewController.swift

@@ -107,7 +107,7 @@ public class STTextViewController: NSViewController, STTextViewDelegate, ThemeAt
     public override func loadView() {
         textView = STTextView()
 
-        let scrollView = NSScrollView()
+        let scrollView = CEScrollView()
         scrollView.translatesAutoresizingMaskIntoConstraints = false
         scrollView.hasVerticalScroller = true
         scrollView.documentView = textView