Cursor and highlighting broken when adjusting frame

[sebjvidal]

The cursor and highlighting view seem to be offset by the textView's distance from (0,0). For example, setting the textView's frame.origin to CGPoint(x: 10, y: 10) results in the following cursor and highlighting view offset:

Window	Xcode Debug View Hierarchy

This can be reproduced with the following code on macOS 13.5.2 using Xcode 15.0 and STTextView 0.8.15:

import AppKit
import STTextView

class ViewController: NSViewController, STTextViewDelegate {

    override func viewDidLoad() {
        super.viewDidLoad()

        let textView = STTextView()
        textView.string = "Snippet"
        textView.backgroundColor = .systemTeal
        textView.font = .monospacedSystemFont(ofSize: 15, weight: .regular)
        textView.frame.origin = CGPoint(x: 0, y: 0) // Set `frame.origin` of `textView`
        
        view.addSubview(textView)
    }
}

This can cause the cursor and highlighting view to disappear completely with more drastic offsets, for example centering the textView in its superview:

Screen.Recording.2023-10-05.at.12.13.59.mov

[krzyzanowskim]

just checking, do you still can reproduce that issue?