update revealjs 5.1.0

configuration

@@ -35,7 +35,7 @@ export POPPER_JS=2.11.7
 export CLIPBOARD_JS=2.0.11
 export TIPPY_JS=6.3.7
 export PDF_JS=2.8.335
-export REVEAL_JS=5.0.5
+export REVEAL_JS=5.1.0
 export REVEAL_JS_MENU=2.1.0
 export REVEAL_JS_CHALKBOARD=4.2.5
 export REVEAL_JS_PDFEXPORT=2.0.1

src/resources/formats/revealjs/reveal/css/layout.scss

@@ -25,6 +25,7 @@
 // Stack multiple elements on top of each other
 .reveal .r-stack {
 	display: grid;
+	grid-template-rows: 100%;
 }
 
 .reveal .r-stack > * {

src/resources/formats/revealjs/reveal/css/reveal.scss

@@ -631,11 +631,16 @@ $controlsArrowAngleActive: 36deg;
 	touch-action: pinch-zoom;
 }
 
-// Swiping on an embedded deck should not block page scrolling
+// Swiping on an embedded deck should not block page scrolling...
 .reveal.embedded {
 	touch-action: pan-y;
 }
 
+// ... unless we're on a vertical slide
+.reveal.embedded.is-vertical-slide {
+	touch-action: none;
+}
+
 .reveal .slides {
 	position: absolute;
 	width: 100%;

src/resources/formats/revealjs/reveal/plugin/math/mathjax3.js

@@ -21,7 +21,7 @@ export const MathJax3 = () => {
             ready: () => {
                 MathJax.startup.defaultReady();
                 MathJax.startup.promise.then(() => {
-                    Reveal.layout();
+                    deck.layout();
                 });
             }
         }
@@ -66,7 +66,7 @@ export const MathJax3 = () => {
 
             loadScript( url, function() {
                 // Reprocess equations in slides when they turn visible
-                Reveal.addEventListener( 'slidechanged', function( event ) {
+                deck.addEventListener( 'slidechanged', function( event ) {
                     MathJax.typeset();
                 } );
             } );

src/resources/formats/revealjs/reveal/plugin/notes/plugin.js

@@ -180,14 +180,16 @@ const Plugin = () => {
 		// (added 12/5/22 as a XSS safeguard)
 		if( isSameOriginEvent( event ) ) {
 
-			let data = JSON.parse( event.data );
-			if( data && data.namespace === 'reveal-notes' && data.type === 'connected' ) {
-				clearInterval( connectInterval );
-				onConnected();
-			}
-			else if( data && data.namespace === 'reveal-notes' && data.type === 'call' ) {
-				callRevealApi( data.methodName, data.arguments, data.callId );
-			}
+			try {
+				let data = JSON.parse( event.data );
+				if( data && data.namespace === 'reveal-notes' && data.type === 'connected' ) {
+					clearInterval( connectInterval );
+					onConnected();
+				}
+				else if( data && data.namespace === 'reveal-notes' && data.type === 'call' ) {
+					callRevealApi( data.methodName, data.arguments, data.callId );
+				}
+		  } catch (e) {}
 
 		}