add edit option

deltachat-ios/Chat/ChatViewController.swift

@@ -1665,6 +1665,20 @@ class ChatViewController: UITableViewController, UITableViewDropDelegate {
         replyToMessage(at: indexPath)
     }
 
+    private func editSentMessage(at indexPath: IndexPath) {
+        let message = dcContext.getMessage(id: messageIds[indexPath.row])
+        let alert = UIAlertController(title: nil, message: nil, preferredStyle: .alert)
+        alert.addTextField { textfield in
+            textfield.text = message.text
+        }
+        alert.addAction(UIAlertAction(title: String.localized("ok"), style: .default) { [weak self] _ in
+            guard let self, let textfield = alert.textFields?.first else { return }
+            dcContext.sendTextEdit(msgId: message.id, newText: textfield.text ?? "")
+        })
+        alert.addAction(UIAlertAction(title: String.localized("cancel"), style: .cancel))
+        present(alert, animated: true)
+    }
+
     private func toggleSave(at indexPath: IndexPath) {
         let message = dcContext.getMessage(id: messageIds[indexPath.row])
         if message.savedMessageId != 0 {
@@ -1909,6 +1923,12 @@ extension ChatViewController {
                     UIAction.menuAction(localizationKey: "forward", systemImageName: "arrowshape.turn.up.forward", indexPath: indexPath, action: forward)
                 )
 
+                if message.isFromCurrentSender && message.hasText && !message.isMarkerOrInfo && dcChat.canSend {
+                    children.append(
+                        UIAction.menuAction(localizationKey: "edit_text", systemImageName: "pencil", indexPath: indexPath, action: editSentMessage)
+                    )
+                }
+
                 if !dcChat.isSelfTalk && message.canSave {
                     if message.savedMessageId != 0 {
                         children.append(

deltachat-ios/Chat/Views/StatusView.swift

@@ -75,7 +75,11 @@ public class StatusView: UIView {
     }
 
     public func update(message: DcMsg, tintColor: UIColor) {
-        dateLabel.text = message.formattedSentDate()
+        dateLabel.text = if message.isEdited {
+            message.formattedSentDate() + " " + String.localized("edited")
+        } else {
+            message.formattedSentDate()
+        }
         dateLabel.textColor = tintColor
 
         if message.showPadlock() {

deltachat-ios/DC/DcContext.swift

@@ -62,6 +62,10 @@ public class DcContext {
         dc_send_msg(contextPointer, UInt32(chatId), message.messagePointer)
     }
 
+    public func sendTextEdit(msgId: Int, newText: String) {
+        dc_send_text_edit(contextPointer, UInt32(msgId), newText)
+    }
+
     public func downloadFullMessage(id: Int) {
         dc_download_full_msg(contextPointer, Int32(id))
     }

deltachat-ios/DC/DcMsg.swift

@@ -31,6 +31,10 @@ public class DcMsg {
         return dc_msg_is_forwarded(messagePointer) != 0
     }
 
+    public var isEdited: Bool {
+        return dc_msg_is_edited(messagePointer) != 0
+    }
+
     public var isValid: Bool {
         return messagePointer != nil
     }
@@ -43,7 +47,6 @@ public class DcMsg {
         return Int(dc_msg_get_id(messagePointer))
     }
 
-
     public var fromContactId: Int {
         return Int(dc_msg_get_from_id(messagePointer))
     }
@@ -103,6 +106,10 @@ public class DcMsg {
         }
     }
 
+    public var hasText: Bool {
+        return !(text ?? "").isEmpty
+    }
+
     public var subject: String {
         guard let cString = dc_msg_get_subject(messagePointer) else { return "" }
         let swiftString = String(cString: cString)