Эх сурвалжийг харах

set/remove @disabled on navigation buttons

Keeps disabled buttons out of kbd tab order and indicates to assistive
tech like screen readers that button is disabled. Otherwise buttons
that aren’t enabled remain in kbd Tab order and screen readers announce
them as buttons, but they don’t work.
Jason Kiss 9 жил өмнө
parent
commit
fb8bbaac00
1 өөрчлөгдсөн 15 нэмэгдсэн , 13 устгасан
  1. 15 13
      js/reveal.js

+ 15 - 13
js/reveal.js

@@ -2652,34 +2652,36 @@
 						.concat( dom.controlsNext ).forEach( function( node ) {
 						.concat( dom.controlsNext ).forEach( function( node ) {
 			node.classList.remove( 'enabled' );
 			node.classList.remove( 'enabled' );
 			node.classList.remove( 'fragmented' );
 			node.classList.remove( 'fragmented' );
+			// Set 'disabled' attribute on all directions
+			node.setAttribute('disabled', 'disabled');
 		} );
 		} );
 
 
-		// Add the 'enabled' class to the available routes
+		// Add the 'enabled' class to the available routes; remove 'disabled' attribute to enable buttons
-		if( routes.left ) dom.controlsLeft.forEach( function( el ) { el.classList.add( 'enabled' );	} );
+		if( routes.left ) dom.controlsLeft.forEach( function( el ) { el.classList.add( 'enabled' ); el.removeAttribute('disabled');	} );
-		if( routes.right ) dom.controlsRight.forEach( function( el ) { el.classList.add( 'enabled' ); } );
+		if( routes.right ) dom.controlsRight.forEach( function( el ) { el.classList.add( 'enabled' ); el.removeAttribute('disabled'); } );
-		if( routes.up ) dom.controlsUp.forEach( function( el ) { el.classList.add( 'enabled' );	} );
+		if( routes.up ) dom.controlsUp.forEach( function( el ) { el.classList.add( 'enabled' ); el.removeAttribute('disabled');	} );
-		if( routes.down ) dom.controlsDown.forEach( function( el ) { el.classList.add( 'enabled' ); } );
+		if( routes.down ) dom.controlsDown.forEach( function( el ) { el.classList.add( 'enabled' ); el.removeAttribute('disabled'); } );
 
 
 		// Prev/next buttons
 		// Prev/next buttons
-		if( routes.left || routes.up ) dom.controlsPrev.forEach( function( el ) { el.classList.add( 'enabled' ); } );
+		if( routes.left || routes.up ) dom.controlsPrev.forEach( function( el ) { el.classList.add( 'enabled' ); el.removeAttribute('disabled'); } );
-		if( routes.right || routes.down ) dom.controlsNext.forEach( function( el ) { el.classList.add( 'enabled' ); } );
+		if( routes.right || routes.down ) dom.controlsNext.forEach( function( el ) { el.classList.add( 'enabled' ); el.removeAttribute('disabled'); } );
 
 
 		// Highlight fragment directions
 		// Highlight fragment directions
 		if( currentSlide ) {
 		if( currentSlide ) {
 
 
 			// Always apply fragment decorator to prev/next buttons
 			// Always apply fragment decorator to prev/next buttons
-			if( fragments.prev ) dom.controlsPrev.forEach( function( el ) { el.classList.add( 'fragmented', 'enabled' ); } );
+			if( fragments.prev ) dom.controlsPrev.forEach( function( el ) { el.classList.add( 'fragmented', 'enabled' ); el.removeAttribute('disabled'); } );
-			if( fragments.next ) dom.controlsNext.forEach( function( el ) { el.classList.add( 'fragmented', 'enabled' ); } );
+			if( fragments.next ) dom.controlsNext.forEach( function( el ) { el.classList.add( 'fragmented', 'enabled' ); el.removeAttribute('disabled'); } );
 
 
 			// Apply fragment decorators to directional buttons based on
 			// Apply fragment decorators to directional buttons based on
 			// what slide axis they are in
 			// what slide axis they are in
 			if( isVerticalSlide( currentSlide ) ) {
 			if( isVerticalSlide( currentSlide ) ) {
-				if( fragments.prev ) dom.controlsUp.forEach( function( el ) { el.classList.add( 'fragmented', 'enabled' ); } );
+				if( fragments.prev ) dom.controlsUp.forEach( function( el ) { el.classList.add( 'fragmented', 'enabled' ); el.removeAttribute('disabled'); } );
-				if( fragments.next ) dom.controlsDown.forEach( function( el ) { el.classList.add( 'fragmented', 'enabled' ); } );
+				if( fragments.next ) dom.controlsDown.forEach( function( el ) { el.classList.add( 'fragmented', 'enabled' ); el.removeAttribute('disabled'); } );
 			}
 			}
 			else {
 			else {
-				if( fragments.prev ) dom.controlsLeft.forEach( function( el ) { el.classList.add( 'fragmented', 'enabled' ); } );
+				if( fragments.prev ) dom.controlsLeft.forEach( function( el ) { el.classList.add( 'fragmented', 'enabled' ); el.removeAttribute('disabled'); } );
-				if( fragments.next ) dom.controlsRight.forEach( function( el ) { el.classList.add( 'fragmented', 'enabled' ); } );
+				if( fragments.next ) dom.controlsRight.forEach( function( el ) { el.classList.add( 'fragmented', 'enabled' ); el.removeAttribute('disabled'); } );
 			}
 			}
 
 
 		}
 		}