From d3ebbf1be72dc1ea17c7c6e48f8c362feb4deb94 Mon Sep 17 00:00:00 2001
From: Chris Lawrence <lawrencc@debian.org>
Date: Sat, 8 Jun 2013 05:45:48 -0400
Subject: [PATCH] Only call embedded content bits if the slide actually
 changed.

---
 js/reveal.js | 9 ++++++---
 1 file changed, 6 insertions(+), 3 deletions(-)

diff --git a/js/reveal.js b/js/reveal.js
index a4a71db..8e5fd98 100644
--- a/js/reveal.js
+++ b/js/reveal.js
@@ -1128,7 +1128,8 @@ var Reveal = (function(){
 		}
 
 		// Dispatch an event if the slide changed
-		if( indexh !== indexhBefore || indexv !== indexvBefore ) {
+		var slideChanged = (indexh !== indexhBefore || indexv !== indexvBefore);
+		if( slideChanged ) {
 			dispatchEvent( 'slidechanged', {
 				'indexh': indexh,
 				'indexv': indexv,
@@ -1165,8 +1166,10 @@ var Reveal = (function(){
 		}
 
 		// Handle embedded content
-		stopEmbeddedContent( previousSlide );
-		startEmbeddedContent( currentSlide );
+		if (slideChanged) {
+			stopEmbeddedContent( previousSlide );
+			startEmbeddedContent( currentSlide );
+		}
 
 		updateControls();
 		updateProgress();