fix copy

Signed-off-by: Marino Faggiana <marino@marinofaggiana.com>

iOSClient/Viewer/NCViewerMedia/NCViewerMediaPage.swift

@@ -118,6 +118,7 @@ class NCViewerMediaPage: UIViewController {
         NotificationCenter.default.addObserver(self, selector: #selector(deleteFile(_:)), name: NSNotification.Name(rawValue: NCGlobal.shared.notificationCenterDeleteFile), object: nil)
         NotificationCenter.default.addObserver(self, selector: #selector(renameFile(_:)), name: NSNotification.Name(rawValue: NCGlobal.shared.notificationCenterRenameFile), object: nil)
         NotificationCenter.default.addObserver(self, selector: #selector(moveFile(_:)), name: NSNotification.Name(rawValue: NCGlobal.shared.notificationCenterMoveFile), object: nil)
+        NotificationCenter.default.addObserver(self, selector: #selector(copyFile(_:)), name: NSNotification.Name(rawValue: NCGlobal.shared.notificationCenterCopyFile), object: nil)
 
         NotificationCenter.default.addObserver(self, selector: #selector(downloadedFile(_:)), name: NSNotification.Name(rawValue: NCGlobal.shared.notificationCenterDownloadedFile), object: nil)
         NotificationCenter.default.addObserver(self, selector: #selector(triggerProgressTask(_:)), name: NSNotification.Name(rawValue: NCGlobal.shared.notificationCenterProgressTask), object: nil)
@@ -144,6 +145,7 @@ class NCViewerMediaPage: UIViewController {
         NotificationCenter.default.removeObserver(self, name: NSNotification.Name(rawValue: NCGlobal.shared.notificationCenterDeleteFile), object: nil)
         NotificationCenter.default.removeObserver(self, name: NSNotification.Name(rawValue: NCGlobal.shared.notificationCenterRenameFile), object: nil)
         NotificationCenter.default.removeObserver(self, name: NSNotification.Name(rawValue: NCGlobal.shared.notificationCenterMoveFile), object: nil)
+        NotificationCenter.default.removeObserver(self, name: NSNotification.Name(rawValue: NCGlobal.shared.notificationCenterCopyFile), object: nil)
 
         NotificationCenter.default.removeObserver(self, name: NSNotification.Name(rawValue: NCGlobal.shared.notificationCenterDownloadedFile), object: nil)
         NotificationCenter.default.removeObserver(self, name: NSNotification.Name(rawValue: NCGlobal.shared.notificationCenterProgressTask), object: nil)
@@ -386,6 +388,15 @@ class NCViewerMediaPage: UIViewController {
         deleteFile(notification)
     }
 
+    @objc func copyFile(_ notification: NSNotification) {
+
+        guard let userInfo = notification.userInfo as NSDictionary? else { return }
+
+        if let hud = userInfo["hud"] as? JGProgressHUD {
+            hud.dismiss()
+        }
+    }
+    
     @objc func renameFile(_ notification: NSNotification) {
 
         guard let userInfo = notification.userInfo as NSDictionary?,