From 4b602e0e2790bd5c8aeeaea8b0cadf8a51468b0a Mon Sep 17 00:00:00 2001
From: Marcin Krzyzanowski <marcin.krzyzanowski@gmail.com>
Date: Sun, 20 Feb 2022 14:31:25 +0100
Subject: [PATCH] cup/paste/delete. fix selection range

---
 .../STTextView/NSTextLayoutManager+Helpers.swift  |  2 +-
 Sources/STTextView/STTextView+CopyPaste.swift     | 15 +++++++++++++--
 2 files changed, 14 insertions(+), 3 deletions(-)

diff --git a/Sources/STTextView/NSTextLayoutManager+Helpers.swift b/Sources/STTextView/NSTextLayoutManager+Helpers.swift
index 52bbe43..1126ba1 100644
--- a/Sources/STTextView/NSTextLayoutManager+Helpers.swift
+++ b/Sources/STTextView/NSTextLayoutManager+Helpers.swift
@@ -22,7 +22,7 @@ extension NSTextLayoutManager {
                 output += substring
             }
 
-            if textRange.location >= range.endLocation {
+            if textRange.endLocation >= range.endLocation {
                 stop.pointee = true
             }
         })
diff --git a/Sources/STTextView/STTextView+CopyPaste.swift b/Sources/STTextView/STTextView+CopyPaste.swift
index 53e14ee..b48d653 100644
--- a/Sources/STTextView/STTextView+CopyPaste.swift
+++ b/Sources/STTextView/STTextView+CopyPaste.swift
@@ -17,15 +17,26 @@ extension STTextView {
     }
 
     @objc func paste(_ sender: Any?) {
+        guard let string = NSPasteboard.general.string(forType: .string) else {
+            return
+        }
 
+        let nsrange = NSRange(textLayoutManager.insertionPointLocation!, in: textContentStorage)
+        insertText(string, replacementRange: nsrange)
     }
 
     @objc func cut(_ sender: Any?) {
-        
+        copy(sender)
+        delete(sender)
     }
 
     @objc func delete(_ sender: Any?) {
-
+        for textRange in textLayoutManager.textSelections.flatMap(\.textRanges) {
+            // "replaceContents" doesn't work with NSTextContentStorage at all
+            // textLayoutManager.replaceContents(in: textRange, with: NSAttributedString())
+            let nsrange = NSRange(textRange, in: textContentStorage)
+            insertText("", replacementRange: nsrange)
+        }
     }
 
     private func updatePasteboard(with text: String) {