From 45825b61b7ac336dd57dd21380f1f5128dbe7609 Mon Sep 17 00:00:00 2001
From: JJ Allaire <jj@rstudio.org>
Date: Wed, 13 Feb 2013 08:10:27 -0500
Subject: [PATCH] check window.ontouchstart != null (required for qtwebkit)
---
js/reveal.js | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/js/reveal.js b/js/reveal.js
index fc5164d..5ed71c1 100644
--- a/js/reveal.js
+++ b/js/reveal.js
@@ -439,7 +439,7 @@ var Reveal = (function(){
}
if ( config.controls && dom.controls ) {
- var actionEvent = 'ontouchstart' in window ? 'touchstart' : 'click';
+ var actionEvent = 'ontouchstart' in window && window.ontouchstart != null ? 'touchstart' : 'click';
dom.controlsLeft.forEach( function( el ) { el.removeEventListener( actionEvent, onNavigateLeftClicked, false ); } );
dom.controlsRight.forEach( function( el ) { el.removeEventListener( actionEvent, onNavigateRightClicked, false ); } );
dom.controlsUp.forEach( function( el ) { el.removeEventListener( actionEvent, onNavigateUpClicked, false ); } );
--
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