From 8932d269b72a55bb895d5eb1cb120ba587eca2e8 Mon Sep 17 00:00:00 2001
From: Michael Fielding <michael.fielding@hawkip.com>
Date: Wed, 17 Aug 2016 10:53:43 +1200
Subject: [PATCH] Fix fnSetFilteringDelay when filtering disabled

Adds a check to fnSetFilteringDelay() that the table actually has the search box enabled - previously calling fnSetFilteringDelay() for a table without filtering would hijack ALL the search input box 'keyup' bindings on the whole page.
---
 api/fnSetFilteringDelay.js | 41 ++++++++++++++++++++------------------
 1 file changed, 22 insertions(+), 19 deletions(-)

diff --git a/api/fnSetFilteringDelay.js b/api/fnSetFilteringDelay.js
index 4dac6a6..334df00 100644
--- a/api/fnSetFilteringDelay.js
+++ b/api/fnSetFilteringDelay.js
@@ -29,25 +29,28 @@ jQuery.fn.dataTableExt.oApi.fnSetFilteringDelay = function ( oSettings, iDelay )
 	}
 
 	this.each( function ( i ) {
-		$.fn.dataTableExt.iApiIndex = i;
-		var
-			oTimerId = null,
-			sPreviousSearch = null,
-			anControl = $( 'input', _that.fnSettings().aanFeatures.f );
-
-		anControl.unbind( 'keyup search input' ).bind( 'keyup search input', function() {
-
-			if (sPreviousSearch === null || sPreviousSearch != anControl.val()) {
-				window.clearTimeout(oTimerId);
-				sPreviousSearch = anControl.val();
-				oTimerId = window.setTimeout(function() {
-					$.fn.dataTableExt.iApiIndex = i;
-					_that.fnFilter( anControl.val() );
-				}, iDelay);
-			}
-		});
-
-		return this;
+        	if ( typeof _that.fnSettings().aanFeatures.f !== 'undefined' )
+        	{
+			$.fn.dataTableExt.iApiIndex = i;
+			var
+				oTimerId = null,
+				sPreviousSearch = null,
+				anControl = $( 'input', _that.fnSettings().aanFeatures.f );
+	
+			anControl.unbind( 'keyup search input' ).bind( 'keyup search input', function() {
+	
+				if (sPreviousSearch === null || sPreviousSearch != anControl.val()) {
+					window.clearTimeout(oTimerId);
+					sPreviousSearch = anControl.val();
+					oTimerId = window.setTimeout(function() {
+						$.fn.dataTableExt.iApiIndex = i;
+						_that.fnFilter( anControl.val() );
+					}, iDelay);
+				}
+			});
+	
+			return this;
+        	}
 	} );
 	return this;
 };