From 58dc6b7c3654f2c4383e608763ba84f3e0ea4221 Mon Sep 17 00:00:00 2001
From: Hakim El Hattab <hakim.elhattab@gmail.com>
Date: Tue, 16 May 2017 09:43:16 +0200
Subject: adjust controls layout when there are no vertical or horizontal
 slides in the deck

---
 js/reveal.js | 16 ++++++++++++++++
 1 file changed, 16 insertions(+)

(limited to 'js')

diff --git a/js/reveal.js b/js/reveal.js
index 02dbebe..42c3822 100644
--- a/js/reveal.js
+++ b/js/reveal.js
@@ -2739,6 +2739,22 @@
 				}
 			}
 
+			// Flag if there are ANY vertical slides, anywhere in the deck
+			if( dom.wrapper.querySelectorAll( '.slides>section>section' ).length ) {
+				dom.wrapper.classList.add( 'has-vertical-slides' );
+			}
+			else {
+				dom.wrapper.classList.remove( 'has-vertical-slides' );
+			}
+
+			// Flag if there are ANY horizontal slides, anywhere in the deck
+			if( dom.wrapper.querySelectorAll( '.slides>section:not(.stack)' ).length ) {
+				dom.wrapper.classList.add( 'has-horizontal-slides' );
+			}
+			else {
+				dom.wrapper.classList.remove( 'has-horizontal-slides' );
+			}
+
 		}
 
 	}
-- 
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