From b25a73c24392c98d75d5aa17ff08d08ae60fbea7 Mon Sep 17 00:00:00 2001
From: Georges Basile Stavracas Neto <georges.stavracas@gmail.com>
Date: Tue, 15 Oct 2019 21:34:35 +0200
Subject: [PATCH] authPrompt: Wiggle on failure

Add a wiggle effect to the password entry on failure. The
parameters are set as per design review during GNOME Shell
Hackfest 2019.

https://gitlab.gnome.org/GNOME/gnome-shell/merge_requests/768
---
 js/gdm/authPrompt.js | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/js/gdm/authPrompt.js b/js/gdm/authPrompt.js
index 93a381056..5300c4318 100644
--- a/js/gdm/authPrompt.js
+++ b/js/gdm/authPrompt.js
@@ -6,6 +6,7 @@ const { Clutter, GObject, Pango, Shell, St } = imports.gi;
 const Animation = imports.ui.animation;
 const Batch = imports.gdm.batch;
 const GdmUtil = imports.gdm.util;
+const Util = imports.misc.util;
 const Params = imports.misc.params;
 const ShellEntry = imports.ui.shellEntry;
 const UserWidget = imports.ui.userWidget;
@@ -16,6 +17,10 @@ var DEFAULT_BUTTON_WELL_ANIMATION_TIME = 300;
 
 var MESSAGE_FADE_OUT_ANIMATION_TIME = 500;
 
+const WIGGLE_OFFSET = 6;
+const WIGGLE_DURATION = 65;
+const N_WIGGLES = 3;
+
 var AuthPromptMode = {
     UNLOCK_ONLY: 0,
     UNLOCK_OR_LOG_IN: 1
@@ -256,6 +261,12 @@ var AuthPrompt = GObject.registerClass({
         this.updateSensitivity(canRetry);
         this.setActorInDefaultButtonWell(null);
         this.verificationStatus = AuthPromptStatus.VERIFICATION_FAILED;
+
+        Util.wiggle(this._entry, {
+            offset: WIGGLE_OFFSET,
+            duration: WIGGLE_DURATION,
+            wiggleCount: N_WIGGLES,
+        });
     }
 
     _onVerificationComplete() {