Add html to pasteboard when doing copy or cut.

Author: SergioEstevao

Aztec/Classes/TextKit/TextStorage.swift

@@ -365,6 +365,10 @@ open class TextStorage: NSTextStorage {
     open func getHTML(prettify: Bool = false) -> String {
         return htmlConverter.html(from: self, prettify: prettify)
     }
+
+    open func getHTML(prettify: Bool = false, range: NSRange) -> String {
+        return htmlConverter.html(from: self.attributedSubstring(from: range), prettify: prettify)
+    }
 
     func setHTML(_ html: String, defaultAttributes: [NSAttributedString.Key: Any]) {
         let originalLength = length

Aztec/Classes/TextKit/TextView.swift

@@ -1,6 +1,6 @@
 import UIKit
 import Foundation
-
+import CoreServices
 
 // MARK: - TextViewAttachmentDelegate
 //
@@ -458,16 +458,20 @@ open class TextView: UITextView {
 
     open override func cut(_ sender: Any?) {
         let data = storage.attributedSubstring(from: selectedRange).archivedData()
+        let html = storage.getHTML(range: selectedRange)
         super.cut(sender)
 
         storeInPasteboard(encoded: data)
+        storeInPasteboard(html: html)
     }
 
     open override func copy(_ sender: Any?) {
         let data = storage.attributedSubstring(from: selectedRange).archivedData()
+        let html = storage.getHTML(range: selectedRange)
         super.copy(sender)
 
         storeInPasteboard(encoded: data)
+        storeInPasteboard(html: html)
     }
 
     open override func paste(_ sender: Any?) {
@@ -562,6 +566,14 @@ open class TextView: UITextView {
         }
     }
 
+    internal func storeInPasteboard(html: String, pasteboard: UIPasteboard = UIPasteboard.general) {
+        if pasteboard.numberOfItems > 0 {
+            pasteboard.items[0][kUTTypeHTML as String] = html;
+        } else {
+            pasteboard.addItems([[kUTTypeHTML as String: html]])
+        }
+    }
+
     // MARK: - Intercept keyboard operations
 
     open override func insertText(_ text: String) {