From abee356e42bd27a06db3f1308fd7b751de646102 Mon Sep 17 00:00:00 2001
From: Mario Wolff <mario.wolff@in.sachen.it>
Date: Tue, 15 Jan 2019 13:13:19 +0100
Subject: [PATCH 1/2] emmit resize event if scale changed

---
 README.md    | 8 ++++++++
 js/reveal.js | 8 ++++++++
 2 files changed, 16 insertions(+)

diff --git a/README.md b/README.md
index a301d5fe..4804c294 100644
--- a/README.md
+++ b/README.md
@@ -958,6 +958,14 @@ Limitations:
 - Only direct descendants of a slide section can be stretched
 - Only one descendant per slide section can be stretched
 
+### Resize Event
+
+When reveal.js changes the scale of the slides it fires an resize event. You can subscribe to the event to resize your elements accordingly.
+
+```javascript
+Reveal.addEventListener( 'overviewshown', function( event ) { /* console.log(event.scale,event.oldscale,event.size); */ } );
+```
+
 ### postMessage API
 
 The framework has a built-in postMessage API that can be used when communicating with a presentation inside of another window. Here's an example showing how you'd make a reveal.js instance in the given window proceed to slide 2:
diff --git a/js/reveal.js b/js/reveal.js
index 3c31b973..b291bc7f 100644
--- a/js/reveal.js
+++ b/js/reveal.js
@@ -1971,6 +1971,7 @@
 				dom.slides.style.height = size.height + 'px';
 
 				// Determine scale of content to fit within available space
+				var oldscale =scale;
 				scale = Math.min( size.presentationWidth / size.width, size.presentationHeight / size.height );
 
 				// Respect max/min scale settings
@@ -2036,6 +2037,13 @@
 
 				}
 
+				if( oldscale!==scale ){
+					dispatchEvent( 'resize', {
+						'oldscale': oldscale,
+						'scale': scale,
+						'size': size
+					} );
+				}
 			}
 
 			updateProgress();

From 126365627b30e66b4dc3e1407d1b457094f6cbc2 Mon Sep 17 00:00:00 2001
From: Mario Wolff <mario.wolff@in.sachen.it>
Date: Tue, 15 Jan 2019 13:18:55 +0100
Subject: [PATCH 2/2] fixed documentation on resize event

---
 README.md | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/README.md b/README.md
index 4804c294..9bf6b223 100644
--- a/README.md
+++ b/README.md
@@ -41,6 +41,7 @@ reveal.js comes with a broad range of features including [nested slides](https:/
   - [Fullscreen mode](#fullscreen-mode)
   - [Embedded media](#embedded-media)
   - [Stretching elements](#stretching-elements)
+  - [Resize Event](#resize-event)
   - [postMessage API](#postmessage-api)
 - [PDF Export](#pdf-export)
 - [Theming](#theming)
@@ -963,7 +964,7 @@ Limitations:
 When reveal.js changes the scale of the slides it fires an resize event. You can subscribe to the event to resize your elements accordingly.
 
 ```javascript
-Reveal.addEventListener( 'overviewshown', function( event ) { /* console.log(event.scale,event.oldscale,event.size); */ } );
+Reveal.addEventListener( 'resize', function( event ) { /* console.log(event.scale,event.oldscale,event.size); */ } );
 ```
 
 ### postMessage API