[gnome-shell] polkitAgent: Reset dialog to defaults after cancelling polkit session

[Florian Müllner <fmuellner src gnome org>]

commit 5c7a701a68f584cbd95b3f15f85486a5b2ae6245
Author: Jonas Dreßler <verdre v0yd nl>
Date:   Sun Jun 23 16:33:20 2019 +0200

    polkitAgent: Reset dialog to defaults after cancelling polkit session
    
    Since we don't know if polkit/PAM will request a password (emitting the
    "request" signal) or use another authentication method like a
    fingerprint after the current authentication failed, hide the password
    field and make the "Authenticate" button insensitive after cancelling
    the session, just like we do when creating the dialog.
    
    https://gitlab.gnome.org/GNOME/gnome-shell/merge_requests/788

 js/ui/components/polkitAgent.js | 4 ++++
 1 file changed, 4 insertions(+)
---
diff --git a/js/ui/components/polkitAgent.js b/js/ui/components/polkitAgent.js
index e304c2a463..6367bcc8f1 100644
--- a/js/ui/components/polkitAgent.js
+++ b/js/ui/components/polkitAgent.js
@@ -304,6 +304,10 @@ var AuthenticationDialog = GObject.registerClass({
             this._session.disconnect(this._sessionShowInfoId);
             this._session = null;
         }
+
+        this._passwordBox.hide();
+        this._cancelButton.grab_key_focus();
+        this._okButton.reactive = false;
     }
 
     _onUserChanged() {