[gnome-shell] authPrompt: Grab key focus when making entry sensitive

[Florian Müllner <fmuellner src gnome org>]

commit 8d139bbd95a5d62e0ba20b711a10a8b669cb9e9d
Author: Jonas Dreßler <verdre v0yd nl>
Date:   Wed Apr 22 17:27:54 2020 +0200

    authPrompt: Grab key focus when making entry sensitive
    
    We currently let the entry of the autoPrompt grab the key focus inside
    setQuestion(), which is called from _onAskQuestion(), which is the
    callback of the "ask-question" signal.
    
    It seems that the "ask-question" signal isn't emitted again right after
    the password-check failed, but a few seconds after that. Since we get
    the "verification-failed" signal earlier than "ask-question" (right
    after we know the check failed) and we also get a hint whether the entry
    should be usable again with the canRetry argument, we can also grab key
    focus to in the same step.
    
    So do that by grabbing key focus when making the entry sensitive.
    
    Fixes https://gitlab.gnome.org/GNOME/gnome-shell/-/issues/2655

 js/gdm/authPrompt.js | 6 ++++++
 1 file changed, 6 insertions(+)
---
diff --git a/js/gdm/authPrompt.js b/js/gdm/authPrompt.js
index c26b1bcad5..29170c555a 100644
--- a/js/gdm/authPrompt.js
+++ b/js/gdm/authPrompt.js
@@ -424,7 +424,13 @@ var AuthPrompt = GObject.registerClass({
     }
 
     updateSensitivity(sensitive) {
+        if (this._entry.reactive === sensitive)
+            return;
+
         this._entry.reactive = sensitive;
+
+        if (sensitive)
+            this._entry.grab_key_focus();
     }
 
     vfunc_hide() {