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------------------------------------------------------------
revno: 1767
committer: Wouter Bolsterlee <uws@xxxxxxxxx>
branch nick: anewt.uws
timestamp: Wed 2010-02-24 23:14:12 +0100
message:
  [core] Add AnewtRequest::is_ajax() method
  
  ...with a heuristic to detect Ajax/XMLHttpRequest requests.
modified:
  core/request.lib.php


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=== modified file 'core/request.lib.php'
--- core/request.lib.php	2009-08-02 20:19:16 +0000
+++ core/request.lib.php	2010-02-24 22:14:12 +0000
@@ -305,6 +305,18 @@
 		return AnewtRequest::method() === 'POST';
 	}
 
+	/**
+	 * Check if the request is an AJAX/XMLHttpRequest.
+	 *
+	 * This is based on a heuristic: if the
+	 * <code>X-Requested-With</code> HTTP header equals
+	 * <code>XMLHttpRequest</code> the request is considered an AJAX request;
+	 * otherwise it is not.
+	 */
+	public static function is_ajax()
+	{
+		return array_get_default($_SERVER, 'HTTP_X_REQUESTED_WITH') === 'XMLHttpRequest';
+	}
 
 	/* Integers */