controls are not necessary

no need to include the controls in html

diff --git a/js/reveal.js b/js/reveal.js
index 8ff8e0bad59687b7067c0596a4f7624f90850431..cb4e3f986308e14f76e9cd821e4d07c122576ef0 100644 (file)
--- a/js/reveal.js
+++ b/js/reveal.js
@@ -87,11 +87,14 @@ var Reveal = (function(){
                dom.wrapper = document.querySelector( '.reveal' );
                dom.progress = document.querySelector( '.reveal .progress' );
                dom.progressbar = document.querySelector( '.reveal .progress span' );
-               dom.controls = document.querySelector( '.reveal .controls' );
-               dom.controlsLeft = document.querySelector( '.reveal .controls .left' );
-               dom.controlsRight = document.querySelector( '.reveal .controls .right' );
-               dom.controlsUp = document.querySelector( '.reveal .controls .up' );
-               dom.controlsDown = document.querySelector( '.reveal .controls .down' );
+               
+               if (config.controls) {
+                       dom.controls = document.querySelector( '.reveal .controls' );
+                       dom.controlsLeft = document.querySelector( '.reveal .controls .left' );
+                       dom.controlsRight = document.querySelector( '.reveal .controls .right' );
+                       dom.controlsUp = document.querySelector( '.reveal .controls .up' );
+                       dom.controlsDown = document.querySelector( '.reveal .controls .down' );
+               }
 
                addEventListeners();
 
@@ -123,7 +126,7 @@ var Reveal = (function(){
                        config.transition = 'linear';
                }
 
-               if( config.controls ) {
+               if( config.controls && dom.controls ) {
                        dom.controls.style.display = 'block';
                }
 
@@ -156,11 +159,13 @@ var Reveal = (function(){
                document.addEventListener( 'touchmove', onDocumentTouchMove, false );
                document.addEventListener( 'touchend', onDocumentTouchEnd, false );
                window.addEventListener( 'hashchange', onWindowHashChange, false );
-               
-               dom.controlsLeft.addEventListener( 'click', preventAndForward( navigateLeft ), false );
-               dom.controlsRight.addEventListener( 'click', preventAndForward( navigateRight ), false );
-               dom.controlsUp.addEventListener( 'click', preventAndForward( navigateUp ), false );
-               dom.controlsDown.addEventListener( 'click', preventAndForward( navigateDown ), false );
+
+               if (dom.controls) {
+                       dom.controlsLeft.addEventListener( 'click', preventAndForward( navigateLeft ), false );
+                       dom.controlsRight.addEventListener( 'click', preventAndForward( navigateRight ), false );
+                       dom.controlsUp.addEventListener( 'click', preventAndForward( navigateUp ), false );
+                       dom.controlsDown.addEventListener( 'click', preventAndForward( navigateDown ), false ); 
+               }
        }
 
        function removeEventListeners() {
@@ -170,10 +175,12 @@ var Reveal = (function(){
                document.removeEventListener( 'touchend', onDocumentTouchEnd, false );
                window.removeEventListener( 'hashchange', onWindowHashChange, false );
                
-               dom.controlsLeft.removeEventListener( 'click', preventAndForward( navigateLeft ), false );
-               dom.controlsRight.removeEventListener( 'click', preventAndForward( navigateRight ), false );
-               dom.controlsUp.removeEventListener( 'click', preventAndForward( navigateUp ), false );
-               dom.controlsDown.removeEventListener( 'click', preventAndForward( navigateDown ), false );
+               if (dom.controls) {
+                       dom.controlsLeft.removeEventListener( 'click', preventAndForward( navigateLeft ), false );
+                       dom.controlsRight.removeEventListener( 'click', preventAndForward( navigateRight ), false );
+                       dom.controlsUp.removeEventListener( 'click', preventAndForward( navigateUp ), false );
+                       dom.controlsDown.removeEventListener( 'click', preventAndForward( navigateDown ), false );
+               }
        }
 
        /**
@@ -692,6 +699,8 @@ var Reveal = (function(){
         * Updates the state and link pointers of the controls.
         */
        function updateControls() {
+               if (!dom.controls) return;
+               
                var routes = availableRoutes();
 
                // Remove the 'enabled' class from all directions