From 7aea1c9808a852b09c2444423c04ad1ac5f51517 Mon Sep 17 00:00:00 2001
From: Tobias Schultze <webmaster@tubo-world.de>
Date: Fri, 17 Oct 2014 01:39:03 +0200
Subject: [PATCH] [Form] no need to add the url listener when it does not do
 anything

---
 .../Extension/Core/EventListener/FixUrlProtocolListener.php  | 5 +++++
 src/Symfony/Component/Form/Extension/Core/Type/UrlType.php   | 4 +++-
 2 files changed, 8 insertions(+), 1 deletion(-)

diff --git a/src/Symfony/Component/Form/Extension/Core/EventListener/FixUrlProtocolListener.php b/src/Symfony/Component/Form/Extension/Core/EventListener/FixUrlProtocolListener.php
index e25dacf237d02..4a5a1df6af212 100644
--- a/src/Symfony/Component/Form/Extension/Core/EventListener/FixUrlProtocolListener.php
+++ b/src/Symfony/Component/Form/Extension/Core/EventListener/FixUrlProtocolListener.php
@@ -24,6 +24,11 @@ class FixUrlProtocolListener implements EventSubscriberInterface
 {
     private $defaultProtocol;
 
+    /**
+     * Constructor.
+     *
+     * @param string|null $defaultProtocol The URL scheme to add when there is none or null to not modify the data
+     */
     public function __construct($defaultProtocol = 'http')
     {
         $this->defaultProtocol = $defaultProtocol;
diff --git a/src/Symfony/Component/Form/Extension/Core/Type/UrlType.php b/src/Symfony/Component/Form/Extension/Core/Type/UrlType.php
index b79809259f7cb..5c414afc932b7 100644
--- a/src/Symfony/Component/Form/Extension/Core/Type/UrlType.php
+++ b/src/Symfony/Component/Form/Extension/Core/Type/UrlType.php
@@ -23,7 +23,9 @@ class UrlType extends AbstractType
      */
     public function buildForm(FormBuilderInterface $builder, array $options)
     {
-        $builder->addEventSubscriber(new FixUrlProtocolListener($options['default_protocol']));
+        if (null !== $options['default_protocol']) {
+            $builder->addEventSubscriber(new FixUrlProtocolListener($options['default_protocol']));
+        }
     }
 
     /**