From 6282750bcc12760293514de517723e515df6dc59 Mon Sep 17 00:00:00 2001
From: Daniel Hoffend <dh@dotlan.net>
Date: Wed, 18 Feb 2015 12:26:08 +0100
Subject: add method to check if a hook has been defined

---
 lib/kolab_hooks.php | 14 ++++++++++++++
 1 file changed, 14 insertions(+)

diff --git a/lib/kolab_hooks.php b/lib/kolab_hooks.php
index 1ffff31..9a91188 100644
--- a/lib/kolab_hooks.php
+++ b/lib/kolab_hooks.php
@@ -58,6 +58,20 @@ class kolab_hooks {
     }
 
     /**
+     * check if callbacks are registered for a given hook
+     *
+     * @static
+     * @param string $hook Hook name
+     * @return bool
+     */
+    public static function exists($hook)
+    {
+        return isset(self::$handlers[$hook])
+            && is_array(self::$handlers[$hook])
+            && count(self::$handlers[$hook]);
+    }
+
+    /**
      * register a callback function for a certain hook
      *
      * @static
-- 
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