From c79376dab2998cdaf906bb281ae4fc220e2a2e3a Mon Sep 17 00:00:00 2001
From: Hakim El Hattab <hakim.elhattab@gmail.com>
Date: Sat, 10 Nov 2012 11:40:19 -0500
Subject: allow multiple control elements, document usage of global controls
 (#184, #204)

---
 js/reveal.js     |  71 +++++++++++++++++-------
 js/reveal.min.js | 163 +++++++++++++++++++++++++++++--------------------------
 2 files changed, 135 insertions(+), 99 deletions(-)

(limited to 'js')

diff --git a/js/reveal.js b/js/reveal.js
index 2507b22..b54536e 100644
--- a/js/reveal.js
+++ b/js/reveal.js
@@ -153,10 +153,10 @@ var Reveal = (function(){
 		if( !dom.wrapper.querySelector( '.controls' ) && config.controls ) {
 			var controlsElement = document.createElement( 'aside' );
 			controlsElement.classList.add( 'controls' );
-			controlsElement.innerHTML = '<div class="left"></div>' +
-										'<div class="right"></div>' +
-										'<div class="up"></div>' +
-										'<div class="down"></div>';
+			controlsElement.innerHTML = '<div class="navigate-left"></div>' +
+										'<div class="navigate-right"></div>' +
+										'<div class="navigate-up"></div>' +
+										'<div class="navigate-down"></div>';
 			dom.wrapper.appendChild( controlsElement );
 		}
 
@@ -180,10 +180,14 @@ var Reveal = (function(){
 
 		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' );
+
+			// There can be multiple instances of controls throughout the page
+			dom.controlsLeft = toArray( document.querySelectorAll( '.navigate-left' ) );
+			dom.controlsRight = toArray( document.querySelectorAll( '.navigate-right' ) );
+			dom.controlsUp = toArray( document.querySelectorAll( '.navigate-up' ) );
+			dom.controlsDown = toArray( document.querySelectorAll( '.navigate-down' ) );
+			dom.controlsPrev = toArray( document.querySelectorAll( '.navigate-prev' ) );
+			dom.controlsNext = toArray( document.querySelectorAll( '.navigate-next' ) );
 		}
 	}
 
@@ -354,10 +358,12 @@ var Reveal = (function(){
 		}
 
 		if ( config.controls && 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 );
+			dom.controlsLeft.forEach( function( el ) { 		el.addEventListener( 'click', preventAndForward( navigateLeft ), false ); 		} );
+			dom.controlsRight.forEach( function( el ) { 	el.addEventListener( 'click', preventAndForward( navigateRight ), false ); 		} );
+			dom.controlsUp.forEach( function( el ) { 		el.addEventListener( 'click', preventAndForward( navigateUp ), false ); 		} );
+			dom.controlsDown.forEach( function( el ) { 		el.addEventListener( 'click', preventAndForward( navigateDown ), false ); 		} );
+			dom.controlsPrev.forEach( function( el ) { 		el.addEventListener( 'click', preventAndForward( navigatePrev ), false ); 		} );
+			dom.controlsNext.forEach( function( el ) { 		el.addEventListener( 'click', preventAndForward( navigateNext ), false ); 		} );
 		}
 	}
 
@@ -377,10 +383,12 @@ var Reveal = (function(){
 		}
 
 		if ( config.controls && 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 );
+			dom.controlsLeft.forEach( function( el ) { 		el.removeEventListener( 'click', preventAndForward( navigateLeft ), false ); 		} );
+			dom.controlsRight.forEach( function( el ) { 	el.removeEventListener( 'click', preventAndForward( navigateRight ), false ); 		} );
+			dom.controlsUp.forEach( function( el ) { 		el.removeEventListener( 'click', preventAndForward( navigateUp ), false ); 			} );
+			dom.controlsDown.forEach( function( el ) { 		el.removeEventListener( 'click', preventAndForward( navigateDown ), false ); 		} );
+			dom.controlsPrev.forEach( function( el ) { 		el.removeEventListener( 'click', preventAndForward( navigatePrev ), false ); 		} );
+			dom.controlsNext.forEach( function( el ) { 		el.removeEventListener( 'click', preventAndForward( navigateNext ), false ); 		} );
 		}
 	}
 
@@ -394,6 +402,19 @@ var Reveal = (function(){
 		}
 	}
 
+	/**
+	 * Converts the target object to an array.
+	 */
+	function toArray( o ) {
+		return Array.prototype.slice.call( o );
+	}
+
+	function each( targets, method, args ) {
+		targets.forEach( function( el ) {
+			el[method].apply( el, args );
+		} );
+	}
+
 	/**
 	 * Measures the distance in pixels between point a
 	 * and point b.
@@ -865,15 +886,23 @@ var Reveal = (function(){
 			var routes = availableRoutes();
 
 			// Remove the 'enabled' class from all directions
-			[ dom.controlsLeft, dom.controlsRight, dom.controlsUp, dom.controlsDown ].forEach( function( node ) {
+			dom.controlsLeft.concat( dom.controlsRight )
+							.concat( dom.controlsUp )
+							.concat( dom.controlsDown )
+							.concat( dom.controlsPrev )
+							.concat( dom.controlsNext ).forEach( function( node ) {
 				node.classList.remove( 'enabled' );
 			} );
 
 			// Add the 'enabled' class to the available routes
-			if( routes.left ) dom.controlsLeft.classList.add( 'enabled' );
-			if( routes.right ) dom.controlsRight.classList.add( 'enabled' );
-			if( routes.up ) dom.controlsUp.classList.add( 'enabled' );
-			if( routes.down ) dom.controlsDown.classList.add( 'enabled' );
+			if( routes.left ) dom.controlsLeft.forEach( function( el ) { 	el.classList.add( 'enabled' );		} );
+			if( routes.right ) dom.controlsRight.forEach( function( el ) { 	el.classList.add( 'enabled' );		} );
+			if( routes.up ) dom.controlsUp.forEach( function( el ) { 		el.classList.add( 'enabled' );		} );
+			if( routes.down ) dom.controlsDown.forEach( function( el ) { 	el.classList.add( 'enabled' );		} );
+
+			// Prev/next buttons
+			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' );		} );
 
 		}
 	}
diff --git a/js/reveal.min.js b/js/reveal.min.js
index 74627ea..948c411 100644
--- a/js/reveal.min.js
+++ b/js/reveal.min.js
@@ -5,82 +5,89 @@
  *
  * Copyright (C) 2011-2012 Hakim El Hattab, http://hakim.se
  */
-var Reveal=(function(){var m=".reveal .slides>section",b=".reveal .slides>section.present>section",T={controls:true,progress:true,history:false,keyboard:true,overview:true,center:false,loop:false,autoSlide:0,mouseWheel:true,rollingLinks:true,theme:null,transition:"default",dependencies:[]},aa=T.autoSlide,n=0,e=0,z,H,am=[],f={},V="WebkitPerspective" in document.body.style||"MozPerspective" in document.body.style||"msPerspective" in document.body.style||"OPerspective" in document.body.style||"perspective" in document.body.style,o="WebkitTransform" in document.body.style||"MozTransform" in document.body.style||"msTransform" in document.body.style||"OTransform" in document.body.style||"transform" in document.body.style,A=0,l=0,E=0,ae={startX:0,startY:0,startSpan:0,startCount:0,handled:false,threshold:80};
-function j(an){if((!o&&!V)){document.body.setAttribute("class","no-transforms");return;}u(T,an);d();X();}function Q(){f.theme=document.querySelector("#theme");
-f.wrapper=document.querySelector(".reveal");if(!f.wrapper.querySelector(".progress")&&T.progress){var aq=document.createElement("div");aq.classList.add("progress");
-aq.innerHTML="<span></span>";f.wrapper.appendChild(aq);}if(!f.wrapper.querySelector(".controls")&&T.controls){var ap=document.createElement("aside");ap.classList.add("controls");
-ap.innerHTML='<div class="left"></div><div class="right"></div><div class="up"></div><div class="down"></div>';f.wrapper.appendChild(ap);}if(!f.wrapper.querySelector(".state-background")){var ao=document.createElement("div");
-ao.classList.add("state-background");f.wrapper.appendChild(ao);}if(!f.wrapper.querySelector(".pause-overlay")){var an=document.createElement("div");an.classList.add("pause-overlay");
-f.wrapper.appendChild(an);}f.progress=document.querySelector(".reveal .progress");f.progressbar=document.querySelector(".reveal .progress span");if(T.controls){f.controls=document.querySelector(".reveal .controls");
-f.controlsLeft=document.querySelector(".reveal .controls .left");f.controlsRight=document.querySelector(".reveal .controls .right");f.controlsUp=document.querySelector(".reveal .controls .up");
-f.controlsDown=document.querySelector(".reveal .controls .down");}}function d(){if(navigator.userAgent.match(/(iphone|ipod|android)/i)){document.documentElement.style.overflow="scroll";
-document.body.style.height="120%";window.addEventListener("load",af,false);window.addEventListener("orientationchange",af,false);}}function X(){var ao=[],at=[];
-for(var ap=0,an=T.dependencies.length;ap<an;ap++){var aq=T.dependencies[ap];if(!aq.condition||aq.condition()){if(aq.async){at.push(aq.src);}else{ao.push(aq.src);
-}if(typeof aq.callback==="function"){head.ready(aq.src.match(/([\w\d_\-]*)\.?[^\\\/]*$/i)[0],aq.callback);}}}function ar(){if(at.length){head.js.apply(null,at);
-}I();}if(ao.length){head.ready(ar);head.js.apply(null,ao);}else{ar();}}function I(){Q();F();L();R();K();P();setTimeout(function(){s("ready",{indexh:n,indexv:e,currentSlide:H});
-},1);}function L(){if(V===false){T.transition="linear";}if(T.controls&&f.controls){f.controls.style.display="block";}if(T.progress&&f.progress){f.progress.style.display="block";
-}if(T.transition!=="default"){f.wrapper.classList.add(T.transition);}if(T.center){f.wrapper.classList.add("center");}if(T.mouseWheel){document.addEventListener("DOMMouseScroll",p,false);
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-var ao=ap.match(an)[0];if(T.theme!==ao){ap=ap.replace(an,T.theme);f.theme.setAttribute("href",ap);}}}function F(){document.addEventListener("touchstart",B,false);
-document.addEventListener("touchmove",ah,false);document.addEventListener("touchend",Y,false);window.addEventListener("hashchange",x,false);window.addEventListener("resize",g,false);
-if(T.keyboard){document.addEventListener("keydown",aj,false);}if(T.progress&&f.progress){f.progress.addEventListener("click",r(ak),false);}if(T.controls&&f.controls){f.controlsLeft.addEventListener("click",r(C),false);
-f.controlsRight.addEventListener("click",r(k),false);f.controlsUp.addEventListener("click",r(v),false);f.controlsDown.addEventListener("click",r(G),false);
-}}function W(){document.removeEventListener("keydown",aj,false);document.removeEventListener("touchstart",B,false);document.removeEventListener("touchmove",ah,false);
-document.removeEventListener("touchend",Y,false);window.removeEventListener("hashchange",x,false);window.removeEventListener("resize",g,false);if(T.progress&&f.progress){f.progress.removeEventListener("click",r(ak),false);
-}if(T.controls&&f.controls){f.controlsLeft.removeEventListener("click",r(C),false);f.controlsRight.removeEventListener("click",r(k),false);f.controlsUp.removeEventListener("click",r(v),false);
-f.controlsDown.removeEventListener("click",r(G),false);}}function u(ao,an){for(var ap in an){ao[ap]=an[ap];}}function U(ap,an){var aq=ap.x-an.x,ao=ap.y-an.y;
-return Math.sqrt(aq*aq+ao*ao);}function r(an){return function(ao){ao.preventDefault();an.call(null,ao);};}function af(){setTimeout(function(){window.scrollTo(0,1);
-},0);}function s(ao,an){var ap=document.createEvent("HTMLEvents",1,2);ap.initEvent(ao,true,true);u(ap,an);f.wrapper.dispatchEvent(ap);}function O(){if(V&&!("msPerspective" in document.body.style)){var ao=document.querySelectorAll(".reveal .slides section a:not(.image)");
-for(var ap=0,an=ao.length;ap<an;ap++){var aq=ao[ap];if(aq.textContent&&!aq.querySelector("img")&&(!aq.className||!aq.classList.contains(aq,"roll"))){aq.classList.add("roll");
-aq.innerHTML='<span data-title="'+aq.text+'">'+aq.innerHTML+"</span>";}}}}function R(){if(T.center){var aq=Array.prototype.slice.call(document.querySelectorAll(".reveal .slides section"));
-var ar=-f.wrapper.offsetHeight/2;for(var ap=0,ao=aq.length;ap<ao;ap++){var an=aq[ap];if(an.classList.contains("stack")){an.style.top=0;}else{an.style.top=Math.max(-(an.offsetHeight/2)-20,ar)+"px";
-}}}}function J(){if(T.overview){f.wrapper.classList.add("overview");var an=document.querySelectorAll(m);for(var at=0,aq=an.length;at<aq;at++){var ap=an[at],ax="translateZ(-2500px) translate("+((at-n)*105)+"%, 0%)";
-ap.setAttribute("data-index-h",at);ap.style.display="block";ap.style.WebkitTransform=ax;ap.style.MozTransform=ax;ap.style.msTransform=ax;ap.style.OTransform=ax;
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-}function ad(){var an=document.body;var ao=an.requestFullScreen||an.webkitRequestFullScreen||an.mozRequestFullScreen||an.msRequestFullScreen;if(ao){ao.apply(an);
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-}while(aq.length){document.documentElement.classList.remove(aq.pop());}if(T.progress&&f.progress){f.progressbar.style.width=(n/(document.querySelectorAll(m).length-1))*window.innerWidth+"px";
-}if(M()){J();}t();clearTimeout(E);E=setTimeout(i,1500);var an=document.querySelectorAll(m);var aw=an[n],at=aw.querySelectorAll("section");H=at[e]||aw;if(n!==ax||e!==ao){s("slidechanged",{indexh:n,indexv:e,previousSlide:z,currentSlide:H});
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-}}if(au.querySelector("section")){ao[at].classList.add("stack");}}ao[aw].classList.add("present");var ap=ao[aw].getAttribute("data-state");if(ap){am=am.concat(ap.split(" "));
-}var ar=ao[aw].getAttribute("data-autoslide");if(ar){aa=parseInt(ar);}else{aa=T.autoSlide;}}else{aw=0;}return aw;}function t(){if(T.controls&&f.controls){var an=h();
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-}}}function h(){var an=document.querySelectorAll(m),ao=document.querySelectorAll(b);return{left:n>0,right:n<an.length-1,up:e>0,down:e<ao.length-1};}function K(){var at=window.location.hash;
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-s("fragmentshown",{fragment:an[0]});return true;}}return false;}function S(){if(document.querySelector(b+".present")){var ao=document.querySelectorAll(b+".present .fragment.visible");
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-if(aa){l=setTimeout(y,aa);}}function C(){if(h().left&&(M()||S()===false)){a(n-1,0);}}function k(){if(h().right&&(M()||w()===false)){a(n+1,0);}}function v(){if(h().up&&(M()||S()===false)){a(n,e-1);
-}}function G(){if(h().down&&(M()||w()===false)){a(n,e+1);}}function ab(){if(S()===false){if(h().up){v();}else{var an=document.querySelector(".reveal .slides>section.past:nth-child("+n+")");
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-}}function ah(at){if(!ae.handled){var aq=at.touches[0].clientX;var ap=at.touches[0].clientY;if(at.touches.length===2&&ae.startCount===2&&T.overview){var ar=U({x:at.touches[1].clientX,y:at.touches[1].clientY},{x:ae.startX,y:ae.startY});
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-n=this.getAttribute("data-index-h");e=this.getAttribute("data-index-v");a();}}return{initialize:j,slide:a,left:C,right:k,up:v,down:G,prev:ab,next:y,prevFragment:S,nextFragment:w,navigateTo:a,navigateLeft:C,navigateRight:k,navigateUp:v,navigateDown:G,navigatePrev:ab,navigateNext:y,toggleOverview:Z,addEventListeners:F,removeEventListeners:W,getIndices:N,getPreviousSlide:function(){return z;
-},getCurrentSlide:function(){return H;},getQueryHash:function(){var an={};location.search.replace(/[A-Z0-9]+?=(\w*)/gi,function(ao){an[ao.split("=").shift()]=ao.split("=").pop();
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