From 747c4c4b3d7862d5c6889438b96bd7ad408b24bc Mon Sep 17 00:00:00 2001
From: Hakim El Hattab
Date: Wed, 24 Oct 2012 21:30:52 -0400
Subject: fix keyboard navigation in ie9 (closes #202)

---
 js/reveal.js | 11 ++++++++---
 1 file changed, 8 insertions(+), 3 deletions(-)

(limited to 'js/reveal.js')

diff --git a/js/reveal.js b/js/reveal.js
index cb0205e..fcc064d 100644
--- a/js/reveal.js
+++ b/js/reveal.js
@@ -1088,9 +1088,14 @@ var Reveal = (function(){
 	 * @param {Object} event
 	 */
 	function onDocumentKeyDown( event ) {
-		// Disregard the event if the target is editable or a
-		// modifier is present
-		if ( document.querySelector( ':focus' ) !== null || event.shiftKey || event.altKey || event.ctrlKey || event.metaKey ) return;
+		// Check if there's a focused element that could be using 
+		// the keyboard
+		var activeElement = document.activeElement;
+    	var hasFocus = !!( document.activeElement && ( document.activeElement.type || document.activeElement.href || document.activeElement.contentEditable !== 'inherit' ) );
+
+		// Disregard the event if there's a focused element or a 
+		// keyboard modifier key is present
+		if ( hasFocus || event.shiftKey || event.altKey || event.ctrlKey || event.metaKey ) return;
 
 		var triggered = true;
 
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