[gnome-shell] gdm: disallow cancel after verification succeeds

[Ray Strode <halfline src gnome org>]

commit 5d440fa8d976cb8ab10c13ff304470292eac9378
Author: Ray Strode <rstrode redhat com>
Date:   Sun Oct 5 16:27:00 2014 -0400

    gdm: disallow cancel after verification succeeds
    
    Once verification has succeeded, the train's already
    left the building and we shouldn't allow canceling.
    
    This commit renders the cancel button non-reactive
    and makes the cancel function be a noop after
    verification succeeds.
    
    https://bugzilla.gnome.org/show_bug.cgi?id=740141

 js/gdm/authPrompt.js |    5 +++++
 1 files changed, 5 insertions(+), 0 deletions(-)
---
diff --git a/js/gdm/authPrompt.js b/js/gdm/authPrompt.js
index 1e51faa..26a4e2c 100644
--- a/js/gdm/authPrompt.js
+++ b/js/gdm/authPrompt.js
@@ -261,6 +261,7 @@ const AuthPrompt = new Lang.Class({
 
     _onVerificationComplete: function() {
         this.verificationStatus = AuthPromptStatus.VERIFICATION_SUCCEEDED;
+       this.cancelButton.reactive = false;
     },
 
     _onReset: function() {
@@ -432,6 +433,7 @@ const AuthPrompt = new Lang.Class({
     reset: function() {
         let oldStatus = this.verificationStatus;
         this.verificationStatus = AuthPromptStatus.NOT_VERIFYING;
+        this.cancelButton.reactive = true;
 
         if (oldStatus == AuthPromptStatus.VERIFYING)
             this._userVerifier.cancel();
@@ -500,6 +502,9 @@ const AuthPrompt = new Lang.Class({
     },
 
     cancel: function() {
+        if (this.verificationStatus == AuthPromptStatus.NOT_VERIFYING || this.verificationStatus == 
AuthPromptStatus.VERIFICATION_SUCCEEDED) {
+            return;
+        }
         this.reset();
         this.emit('cancelled');
     }