From 43c8990f2b195e39c09f801e20beb0efa330a198 Mon Sep 17 00:00:00 2001
From: Hakim El Hattab <hakim.elhattab@gmail.com>
Date: Thu, 4 Oct 2012 09:32:20 -0400
Subject: [PATCH] prevent touchmove default action on android (#143)

---
 js/reveal.js     |  7 ++++++-
 js/reveal.min.js | 22 +++++++++++-----------
 2 files changed, 17 insertions(+), 12 deletions(-)

diff --git a/js/reveal.js b/js/reveal.js
index 1b4d1f3b..06ecde6f 100644
--- a/js/reveal.js
+++ b/js/reveal.js
@@ -1,5 +1,5 @@
 /*!
- * reveal.js 2.1 r27
+ * reveal.js 2.1 r28
  * http://lab.hakim.se/reveal-js
  * MIT licensed
  * 
@@ -485,6 +485,11 @@ var Reveal = (function(){
 
 			event.preventDefault();
 		}
+		// There's a bug with swiping on some Android devices unless 
+		// the default action is always prevented
+		else if( navigator.userAgent.match( /android/gi ) ) {
+			event.preventDefault();
+		}
 	}
 
 	/**
diff --git a/js/reveal.min.js b/js/reveal.min.js
index 80e20e17..1a84333d 100644
--- a/js/reveal.min.js
+++ b/js/reveal.min.js
@@ -1,5 +1,5 @@
 /*!
- * reveal.js 2.1 r27
+ * reveal.js 2.1 r28
  * http://lab.hakim.se/reveal-js
  * MIT licensed
  * 
@@ -32,16 +32,16 @@ V.startCount=ac.touches.length;if(ac.touches.length===2){V.startSpan=N({x:ac.tou
 var ae=ah.touches[0].clientY;if(ah.touches.length===2&&V.startCount===2){var ag=N({x:ah.touches[1].clientX,y:ah.touches[1].clientY},{x:V.startX,y:V.startY});
 if(Math.abs(V.startSpan-ag)>V.threshold){V.handled=true;if(ag<V.startSpan){F();}else{X();}}}else{if(ah.touches.length===1){var ad=af-V.startX,ac=ae-V.startY;
 if(ad>V.threshold&&Math.abs(ad)>Math.abs(ac)){V.handled=true;y();}else{if(ad<-V.threshold&&Math.abs(ad)>Math.abs(ac)){V.handled=true;h();}else{if(ac>V.threshold){V.handled=true;
-r();}else{if(ac<-V.threshold){V.handled=true;C();}}}}}}ah.preventDefault();}}function R(ac){V.handled=false;}function m(ac){clearTimeout(w);w=setTimeout(function(){var ad=ac.detail||-ac.wheelDelta;
-if(ad>0){u();}else{T();}},100);}function t(ac){G();}function A(ac){if(U()){ac.preventDefault();X();k=this.getAttribute("data-index-h");c=this.getAttribute("data-index-v");
-a();}}function I(){if(O&&!("msPerspective" in document.body.style)){var ad=document.querySelectorAll(".reveal .slides section a:not(.image)");for(var ae=0,ac=ad.length;
-ae<ac;ae++){var af=ad[ae];if(af.textContent&&!af.querySelector("img")&&(!af.className||!af.classList.contains(af,"roll"))){af.classList.add("roll");af.innerHTML='<span data-title="'+af.text+'">'+af.innerHTML+"</span>";
-}}}}function F(){if(M.overview){d.wrapper.classList.add("overview");var ac=document.querySelectorAll(j);for(var ah=0,af=ac.length;ah<af;ah++){var ae=ac[ah],al="translateZ(-2500px) translate("+((ah-k)*105)+"%, 0%)";
-ae.setAttribute("data-index-h",ah);ae.style.display="block";ae.style.WebkitTransform=al;ae.style.MozTransform=al;ae.style.msTransform=al;ae.style.OTransform=al;
-ae.style.transform=al;if(!ae.classList.contains("stack")){ae.addEventListener("click",A,true);}var ak=ae.querySelectorAll("section");for(var ag=0,ad=ak.length;
-ag<ad;ag++){var aj=ak[ag],ai="translate(0%, "+((ag-(ah===k?c:0))*105)+"%)";aj.setAttribute("data-index-h",ah);aj.setAttribute("data-index-v",ag);aj.style.display="block";
-aj.style.WebkitTransform=ai;aj.style.MozTransform=ai;aj.style.msTransform=ai;aj.style.OTransform=ai;aj.style.transform=ai;aj.addEventListener("click",A,true);
-}}}}function X(){if(M.overview){d.wrapper.classList.remove("overview");var af=Array.prototype.slice.call(document.querySelectorAll(".reveal .slides section"));
+r();}else{if(ac<-V.threshold){V.handled=true;C();}}}}}}ah.preventDefault();}else{if(navigator.userAgent.match(/android/gi)){ah.preventDefault();}}}function R(ac){V.handled=false;
+}function m(ac){clearTimeout(w);w=setTimeout(function(){var ad=ac.detail||-ac.wheelDelta;if(ad>0){u();}else{T();}},100);}function t(ac){G();}function A(ac){if(U()){ac.preventDefault();
+X();k=this.getAttribute("data-index-h");c=this.getAttribute("data-index-v");a();}}function I(){if(O&&!("msPerspective" in document.body.style)){var ad=document.querySelectorAll(".reveal .slides section a:not(.image)");
+for(var ae=0,ac=ad.length;ae<ac;ae++){var af=ad[ae];if(af.textContent&&!af.querySelector("img")&&(!af.className||!af.classList.contains(af,"roll"))){af.classList.add("roll");
+af.innerHTML='<span data-title="'+af.text+'">'+af.innerHTML+"</span>";}}}}function F(){if(M.overview){d.wrapper.classList.add("overview");var ac=document.querySelectorAll(j);
+for(var ah=0,af=ac.length;ah<af;ah++){var ae=ac[ah],al="translateZ(-2500px) translate("+((ah-k)*105)+"%, 0%)";ae.setAttribute("data-index-h",ah);ae.style.display="block";
+ae.style.WebkitTransform=al;ae.style.MozTransform=al;ae.style.msTransform=al;ae.style.OTransform=al;ae.style.transform=al;if(!ae.classList.contains("stack")){ae.addEventListener("click",A,true);
+}var ak=ae.querySelectorAll("section");for(var ag=0,ad=ak.length;ag<ad;ag++){var aj=ak[ag],ai="translate(0%, "+((ag-(ah===k?c:0))*105)+"%)";aj.setAttribute("data-index-h",ah);
+aj.setAttribute("data-index-v",ag);aj.style.display="block";aj.style.WebkitTransform=ai;aj.style.MozTransform=ai;aj.style.msTransform=ai;aj.style.OTransform=ai;
+aj.style.transform=ai;aj.addEventListener("click",A,true);}}}}function X(){if(M.overview){d.wrapper.classList.remove("overview");var af=Array.prototype.slice.call(document.querySelectorAll(".reveal .slides section"));
 for(var ae=0,ac=af.length;ae<ac;ae++){var ad=af[ae];ad.style.WebkitTransform="";ad.style.MozTransform="";ad.style.msTransform="";ad.style.OTransform="";
 ad.style.transform="";ad.removeEventListener("click",A);}a();}}function U(){return d.wrapper.classList.contains("overview");}function aa(ad,af){var ah=Array.prototype.slice.call(document.querySelectorAll(ad)),ai=ah.length;
 if(ai){if(M.loop){af%=ai;if(af<0){af=ai+af;}}af=Math.max(Math.min(af,ai-1),0);for(var ag=0;ag<ai;ag++){var ac=ah[ag];if(U()===false){var aj=Math.abs((af-ag)%(ai-3))||0;