     func editSaveViewControllerDidSave(_ editSaveViewController: EditSaveViewController)
 }
 
-enum WMFPreviewAndSaveMode : Int {
-    case PREVIEW_MODE_EDIT_WIKITEXT
-    case PREVIEW_MODE_EDIT_WIKITEXT_WARNING
-    case PREVIEW_MODE_EDIT_WIKITEXT_DISALLOW
-    case PREVIEW_MODE_EDIT_WIKITEXT_PREVIEW
-    case PREVIEW_MODE_EDIT_WIKITEXT_CAPTCHA
+private enum NavigationMode : Int {
+    case wikitext
+    case abuseFilterWarning
+    case abuseFilterDisallow
+    case preview
+    case captcha
 }
 
 class EditSaveViewController: WMFScrollViewController, Themeable, UITextFieldDelegate, UIScrollViewDelegate, PreviewLicenseViewDelegate, WMFCaptchaViewControllerDelegate, EditSummaryViewDelegate {

    }

    @objc func goBack() {
        if mode == .PREVIEW_MODE_EDIT_WIKITEXT_WARNING {
            funnel?.logAbuseFilterWarningBack(abuseFilterCode)
        }
        

        
        UIView.commitAnimations()
        
        mode = .captcha
        
        highlightCaptchaSubmitButton(false)
    }
