available fragment routes reflected in control arrows (closes #411)
authorHakim El Hattab <hakim.elhattab@gmail.com>
Sat, 27 Apr 2013 21:35:17 +0000 (17:35 -0400)
committerHakim El Hattab <hakim.elhattab@gmail.com>
Sat, 27 Apr 2013 21:35:17 +0000 (17:35 -0400)
css/reveal.css
css/reveal.min.css
js/reveal.js
js/reveal.min.js

index ebcccba245f0ea72962dd25f27fb57ed9471b066..dde4e0b6f0da244e7eec7199ce0d5daf286a3419 100644 (file)
@@ -369,11 +369,11 @@ body {
        height: 0;
        border: 12px solid transparent;
 
-       -webkit-transition: opacity 0.2s ease;
-          -moz-transition: opacity 0.2s ease;
-           -ms-transition: opacity 0.2s ease;
-            -o-transition: opacity 0.2s ease;
-               transition: opacity 0.2s ease;
+       -webkit-transition: all 0.2s ease;
+          -moz-transition: all 0.2s ease;
+           -ms-transition: all 0.2s ease;
+            -o-transition: all 0.2s ease;
+               transition: all 0.2s ease;
 }
 
 .reveal .controls div.enabled {
@@ -385,35 +385,49 @@ body {
        margin-top: 1px;
 }
 
-.reveal .controls div.navigate-left {
-       top: 42px;
+       .reveal .controls div.navigate-left {
+               top: 42px;
 
-       border-right-width: 22px;
-       border-right-color: #eee;
-}
+               border-right-width: 22px;
+               border-right-color: #eee;
+       }
+               .reveal .controls div.navigate-left.fragmented {
+                       left: 4px;
+                       border-right-width: 18px;
+               }
 
-.reveal .controls div.navigate-right {
-       left: 74px;
-       top: 42px;
+       .reveal .controls div.navigate-right {
+               left: 74px;
+               top: 42px;
 
-       border-left-width: 22px;
-       border-left-color: #eee;
-}
+               border-left-width: 22px;
+               border-left-color: #eee;
+       }
+               .reveal .controls div.navigate-right.fragmented {
+                       border-left-width: 18px;
+               }
 
-.reveal .controls div.navigate-up {
-       left: 42px;
+       .reveal .controls div.navigate-up {
+               left: 42px;
 
-       border-bottom-width: 22px;
-       border-bottom-color: #eee;
-}
+               border-bottom-width: 22px;
+               border-bottom-color: #eee;
+       }
+               .reveal .controls div.navigate-up.fragmented {
+                       top: 4px;
+                       border-bottom-width: 18px;
+               }
 
-.reveal .controls div.navigate-down {
-       left: 42px;
-       top: 74px;
+       .reveal .controls div.navigate-down {
+               left: 42px;
+               top: 74px;
 
-       border-top-width: 22px;
-       border-top-color: #eee;
-}
+               border-top-width: 22px;
+               border-top-color: #eee;
+       }
+               .reveal .controls div.navigate-down.fragmented {
+                       border-top-width: 18px;
+               }
 
 
 /*********************************************
index ed2257666a320310ae7ea85eb845e576453eb47b..c9d59bcb9763f92f01d3b953a17d02405161bdd3 100644 (file)
@@ -4,4 +4,4 @@
  * MIT licensed
  *
  * Copyright (C) 2013 Hakim El Hattab, http://hakim.se
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\ No newline at end of file
index eea243ed08a3c213acf9d5a32b35efbcf197e3ce..c58f3dcb22f96b96cc500ba66de1697d5371bffd 100644 (file)
@@ -1328,6 +1328,7 @@ var Reveal = (function(){
                if ( config.controls && dom.controls ) {
 
                        var routes = availableRoutes();
+                       var fragments = availableFragments();
 
                        // Remove the 'enabled' class from all directions
                        dom.controlsLeft.concat( dom.controlsRight )
@@ -1336,6 +1337,7 @@ var Reveal = (function(){
                                                        .concat( dom.controlsPrev )
                                                        .concat( dom.controlsNext ).forEach( function( node ) {
                                node.classList.remove( 'enabled' );
+                               node.classList.remove( 'fragmented' );
                        } );
 
                        // Add the 'enabled' class to the available routes
@@ -1348,6 +1350,26 @@ var Reveal = (function(){
                        if( routes.left || routes.up ) dom.controlsPrev.forEach( function( el ) { el.classList.add( 'enabled' ); } );
                        if( routes.right || routes.down ) dom.controlsNext.forEach( function( el ) { el.classList.add( 'enabled' ); } );
 
+                       // Highlight fragment directions
+                       if( currentSlide ) {
+                               var isVertical = !!currentSlide.parentNode.nodeName.match( /section/gi );
+
+                               // Always apply fragment decorator to prev/next buttons
+                               if( fragments.prev ) dom.controlsPrev.forEach( function( el ) { el.classList.add( 'fragmented', 'enabled' ); } );
+                               if( fragments.next ) dom.controlsNext.forEach( function( el ) { el.classList.add( 'fragmented', 'enabled' ); } );
+
+                               // Apply fragment decorators to directional buttons based on
+                               // what slide axis they are in
+                               if( isVertical ) {
+                                       if( fragments.prev ) dom.controlsUp.forEach( function( el ) { el.classList.add( 'fragmented', 'enabled' ); } );
+                                       if( fragments.next ) dom.controlsDown.forEach( function( el ) { el.classList.add( 'fragmented', 'enabled' ); } );
+                               }
+                               else {
+                                       if( fragments.prev ) dom.controlsLeft.forEach( function( el ) { el.classList.add( 'fragmented', 'enabled' ); } );
+                                       if( fragments.next ) dom.controlsRight.forEach( function( el ) { el.classList.add( 'fragmented', 'enabled' ); } );
+                               }
+                       }
+
                }
 
        }
@@ -1371,6 +1393,29 @@ var Reveal = (function(){
 
        }
 
+       /**
+        * Returns an object describing the available fragment
+        * directions.
+        *
+        * @return {Object} two boolean properties: prev/next
+        */
+       function availableFragments() {
+
+               if( currentSlide ) {
+                       var fragments = currentSlide.querySelectorAll( '.fragment' );
+                       var hiddenFragments = currentSlide.querySelectorAll( '.fragment:not(.visible)' );
+
+                       return {
+                               prev: fragments.length - hiddenFragments.length > 0,
+                               next: !!hiddenFragments.length
+                       };
+               }
+               else {
+                       return { prev: false, next: false };
+               }
+
+       }
+
        /**
         * Reads the current URL (hash) and navigates accordingly.
         */
@@ -1506,6 +1551,8 @@ var Reveal = (function(){
 
                                // Notify subscribers of the change
                                dispatchEvent( 'fragmentshown', { fragment: fragments[0] } );
+
+                               updateControls();
                                return true;
                        }
                }
@@ -1530,6 +1577,8 @@ var Reveal = (function(){
 
                                // Notify subscribers of the change
                                dispatchEvent( 'fragmenthidden', { fragment: fragments[ fragments.length - 1 ] } );
+
+                               updateControls();
                                return true;
                        }
                }
@@ -1992,6 +2041,9 @@ var Reveal = (function(){
                // Returns an object with the available routes as booleans (left/right/top/bottom)
                availableRoutes: availableRoutes,
 
+               // Returns an object with the available fragments as booleans (prev/next)
+               availableFragments: availableFragments,
+
                // Toggles the overview mode on/off
                toggleOverview: toggleOverview,
 
index 04f5e4f817faa0e404a434cca8762d1be86967a1..23685fbb63cfcee971f95f92f08387e8a462d5bc 100644 (file)
@@ -1,8 +1,8 @@
 /*!
- * reveal.js 2.4.0 (2013-04-27, 16:21)
+ * reveal.js 2.4.0 (2013-04-27, 17:34)
  * http://lab.hakim.se/reveal-js
  * MIT licensed
  *
  * Copyright (C) 2013 Hakim El Hattab, http://hakim.se
  */
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