[gnome-shell] loginDialog: Restrict grabbing of focus while timed login is running

[Ray Strode <halfline src gnome org>]

commit 5cc6fef6892f42f0413f1411213687baa2e1e2f8
Author: verdre <gitlab v0yd nl>
Date:   Tue Apr 17 15:04:04 2018 +0200

    loginDialog: Restrict grabbing of focus while timed login is running
    
    Make sure the focus isn't grabbed right after user interaction starts a
    new timed login. Only grab it after the idle timeout is done and on the
    first run instead.

 js/gdm/loginDialog.js | 15 ++++++++-------
 1 file changed, 8 insertions(+), 7 deletions(-)
---
diff --git a/js/gdm/loginDialog.js b/js/gdm/loginDialog.js
index 017947689..eb8465c59 100644
--- a/js/gdm/loginDialog.js
+++ b/js/gdm/loginDialog.js
@@ -990,11 +990,6 @@ var LoginDialog = new Lang.Class({
         return hold;
     },
 
-    _showTimedLoginAnimation() {
-        this._timedLoginItem.actor.grab_key_focus();
-        return this._timedLoginItem.showTimedLoginIndicator(this._timedLoginAnimationTime);
-    },
-
     _blockTimedLoginUntilIdle() {
         // This blocks timed login from starting until a few
         // seconds after the user stops interacting with the
@@ -1019,10 +1014,13 @@ var LoginDialog = new Lang.Class({
     },
 
     _startTimedLogin(userName, delay) {
+        let firstRun = true;
+
         // Cancel execution of old batch
         if (this._timedLoginBatch) {
             this._timedLoginBatch.cancel();
             this._timedLoginBatch = null;
+            firstRun = false;
         }
 
         // Reset previous idle-timeout
@@ -1054,10 +1052,13 @@ var LoginDialog = new Lang.Class({
                      this._blockTimedLoginUntilIdle,
 
                      () => {
-                         this._userList.scrollToItem(this._timedLoginItem);
+                         if (this._timedLoginDelay > _TIMED_LOGIN_IDLE_THRESHOLD || firstRun) {
+                             this._userList.scrollToItem(this._timedLoginItem);
+                             this._timedLoginItem.actor.grab_key_focus();
+                         }
                      },
 
-                     this._showTimedLoginAnimation,
+                     () => this._timedLoginItem.showTimedLoginIndicator(this._timedLoginAnimationTime),
 
                      () => {
                          this._timedLoginBatch = null;