merge dom setup refactor #544
authorHakim El Hattab <hakim.elhattab@gmail.com>
Sun, 11 Aug 2013 20:47:56 +0000 (16:47 -0400)
committerHakim El Hattab <hakim.elhattab@gmail.com>
Sun, 11 Aug 2013 20:47:56 +0000 (16:47 -0400)
1  2 
js/reveal.js
js/reveal.min.js

diff --cc js/reveal.js
index 08fd47465fb0f10a797fc428bb07734018a470a7,b6210b1ec2bf587c3440076e4c8202cdbf7bd4a5..fd281cb29640534db19259fd9c560d47da7f96ff
@@@ -218,53 -192,27 +218,30 @@@ var Reveal = (function()
                dom.wrapper = document.querySelector( '.reveal' );
                dom.slides = document.querySelector( '.reveal .slides' );
  
 +              // Prevent transitions while we're loading
 +              dom.slides.classList.add( 'no-transition' );
 +
                // Background element
-               if( !document.querySelector( '.reveal .backgrounds' ) ) {
-                       dom.background = document.createElement( 'div' );
-                       dom.background.classList.add( 'backgrounds' );
-                       dom.wrapper.appendChild( dom.background );
-               }
+               dom.background = createSingletonNode( dom.wrapper, 'div', 'backgrounds', null );
  
                // Progress bar
-               if( !dom.wrapper.querySelector( '.progress' ) ) {
-                       var progressElement = document.createElement( 'div' );
-                       progressElement.classList.add( 'progress' );
-                       progressElement.innerHTML = '<span></span>';
-                       dom.wrapper.appendChild( progressElement );
-               }
+               dom.progress = createSingletonNode( dom.wrapper, 'div', 'progress', '<span></span>' );
+               dom.progressbar = dom.progress.querySelector( 'span' );
  
                // Arrow controls
-               if( !dom.wrapper.querySelector( '.controls' ) ) {
-                       var controlsElement = document.createElement( 'aside' );
-                       controlsElement.classList.add( 'controls' );
-                       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 );
-               }
+               createSingletonNode( dom.wrapper, 'aside', 'controls',
+                       '<div class="navigate-left"></div>' +
+                       '<div class="navigate-right"></div>' +
+                       '<div class="navigate-up"></div>' +
+                       '<div class="navigate-down"></div>' );
  
                // State background element [DEPRECATED]
-               if( !dom.wrapper.querySelector( '.state-background' ) ) {
-                       var stateBackgroundElement = document.createElement( 'div' );
-                       stateBackgroundElement.classList.add( 'state-background' );
-                       dom.wrapper.appendChild( stateBackgroundElement );
-               }
+               createSingletonNode( dom.wrapper, 'div', 'state-background', null );
  
                // Overlay graphic which is displayed during the paused mode
-               if( !dom.wrapper.querySelector( '.pause-overlay' ) ) {
-                       var pausedElement = document.createElement( 'div' );
-                       pausedElement.classList.add( 'pause-overlay' );
-                       dom.wrapper.appendChild( pausedElement );
-               }
+               createSingletonNode( dom.wrapper, 'div', 'pause-overlay', null );
  
                // Cache references to elements
-               dom.progress = document.querySelector( '.reveal .progress' );
-               dom.progressbar = document.querySelector( '.reveal .progress span' );
                if ( config.controls ) {
                        dom.controls = document.querySelector( '.reveal .controls' );
  
  
        }
  
 -      function createSingletonNode( container, tagname, classname, innerHTML ){
++      /**
++       * Creates an HTML element and returns a reference to it.
++       * If the element already exists the existing instance will
++       * be returned.
++       */
++      function createSingletonNode( container, tagname, classname, innerHTML ) {
+               var node = container.querySelector( '.' + classname );
 -              if( !node ){
++              if( !node ) {
+                       node = document.createElement( tagname );
+                       node.classList.add( classname );
 -                      if( innerHTML !== null ){
++                      if( innerHTML !== null ) {
+                               node.innerHTML = innerHTML;
+                       }
+                       container.appendChild( node );
+               }
+               return node;
+       }
        /**
         * Creates the slide background elements and appends them
         * to the background container. One element is created per
index f51c783ce0eab43ab754bcf7596211acde74b7fb,93f2f97d477d84641292bdab0b8172af2b3a2850..ad0c80c02a8671425e640bfdc6110f855233e504
@@@ -1,8 -1,8 +1,8 @@@
  /*!
-  * reveal.js 2.5.0 (2013-08-11, 16:31)
 - * reveal.js 2.5.0 (2013-07-29, 14:30)
++ * reveal.js 2.5.0 (2013-08-11, 16:46)
   * http://lab.hakim.se/reveal-js
   * MIT licensed
   *
   * Copyright (C) 2013 Hakim El Hattab, http://hakim.se
   */
- var Reveal=function(){"use strict";function e(e){return t(),Dt||Pt?(window.addEventListener("load",S,!1),d(Yt,e),o(),a(),void 0):(document.body.setAttribute("class","no-transforms"),void 0)}function t(){Pt="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,Dt="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,Nt=navigator.userAgent.match(/(iphone|ipod|android)/gi)}function n(){if(Wt.theme=document.querySelector("#theme"),Wt.wrapper=document.querySelector(".reveal"),Wt.slides=document.querySelector(".reveal .slides"),Wt.slides.classList.add("no-transition"),document.querySelector(".reveal .backgrounds")||(Wt.background=document.createElement("div"),Wt.background.classList.add("backgrounds"),Wt.wrapper.appendChild(Wt.background)),!Wt.wrapper.querySelector(".progress")){var e=document.createElement("div");e.classList.add("progress"),e.innerHTML="<span></span>",Wt.wrapper.appendChild(e)}if(!Wt.wrapper.querySelector(".controls")){var t=document.createElement("aside");t.classList.add("controls"),t.innerHTML='<div class="navigate-left"></div><div class="navigate-right"></div><div class="navigate-up"></div><div class="navigate-down"></div>',Wt.wrapper.appendChild(t)}if(!Wt.wrapper.querySelector(".state-background")){var n=document.createElement("div");n.classList.add("state-background"),Wt.wrapper.appendChild(n)}if(!Wt.wrapper.querySelector(".pause-overlay")){var r=document.createElement("div");r.classList.add("pause-overlay"),Wt.wrapper.appendChild(r)}Wt.progress=document.querySelector(".reveal .progress"),Wt.progressbar=document.querySelector(".reveal .progress span"),Yt.controls&&(Wt.controls=document.querySelector(".reveal .controls"),Wt.controlsLeft=u(document.querySelectorAll(".navigate-left")),Wt.controlsRight=u(document.querySelectorAll(".navigate-right")),Wt.controlsUp=u(document.querySelectorAll(".navigate-up")),Wt.controlsDown=u(document.querySelectorAll(".navigate-down")),Wt.controlsPrev=u(document.querySelectorAll(".navigate-prev")),Wt.controlsNext=u(document.querySelectorAll(".navigate-next")))}function r(){function e(e,t){var n={background:e.getAttribute("data-background"),backgroundSize:e.getAttribute("data-background-size"),backgroundImage:e.getAttribute("data-background-image"),backgroundColor:e.getAttribute("data-background-color"),backgroundRepeat:e.getAttribute("data-background-repeat"),backgroundPosition:e.getAttribute("data-background-position"),backgroundTransition:e.getAttribute("data-background-transition")},r=document.createElement("div");return r.className="slide-background",n.background&&(/^(http|file|\/\/)/gi.test(n.background)||/\.(png|jpg|jpeg|gif|bmp)$/gi.test(n.background)?r.style.backgroundImage="url("+n.background+")":r.style.background=n.background),n.backgroundSize&&(r.style.backgroundSize=n.backgroundSize),n.backgroundImage&&(r.style.backgroundImage='url("'+n.backgroundImage+'")'),n.backgroundColor&&(r.style.backgroundColor=n.backgroundColor),n.backgroundRepeat&&(r.style.backgroundRepeat=n.backgroundRepeat),n.backgroundPosition&&(r.style.backgroundPosition=n.backgroundPosition),n.backgroundTransition&&r.setAttribute("data-background-transition",n.backgroundTransition),t.appendChild(r),r}p()&&document.body.classList.add("print-pdf"),Wt.background.innerHTML="",Wt.background.classList.add("no-transition"),u(document.querySelectorAll(Rt)).forEach(function(t){var n;n=p()?e(t,t):e(t,Wt.background),u(t.querySelectorAll("section")).forEach(function(t){p()?e(t,t):e(t,n)})})}function o(){/iphone|ipod|android/gi.test(navigator.userAgent)&&!/crios/gi.test(navigator.userAgent)&&(window.addEventListener("load",m,!1),window.addEventListener("orientationchange",m,!1))}function a(){function e(){n.length&&head.js.apply(null,n),i()}for(var t=[],n=[],r=0,o=Yt.dependencies.length;o>r;r++){var a=Yt.dependencies[r];(!a.condition||a.condition())&&(a.async?n.push(a.src):t.push(a.src),"function"==typeof a.callback&&head.ready(a.src.match(/([\w\d_\-]*)\.?js$|[^\\\/]*$/i)[0],a.callback))}t.length?(head.ready(e),head.js.apply(null,t)):e()}function i(){n(),s(),V(),setTimeout(function(){Wt.slides.classList.remove("no-transition"),g("ready",{indexh:qt,indexv:xt,currentSlide:Mt})},1)}function s(e){if(Wt.wrapper.classList.remove(Yt.transition),"object"==typeof e&&d(Yt,e),Pt===!1&&(Yt.transition="linear"),Wt.wrapper.classList.add(Yt.transition),Wt.wrapper.setAttribute("data-transition-speed",Yt.transitionSpeed),Wt.wrapper.setAttribute("data-background-transition",Yt.backgroundTransition),Wt.controls&&(Wt.controls.style.display=Yt.controls&&Wt.controls?"block":"none"),Wt.progress&&(Wt.progress.style.display=Yt.progress&&Wt.progress?"block":"none"),Yt.rtl?Wt.wrapper.classList.add("rtl"):Wt.wrapper.classList.remove("rtl"),Yt.center?Wt.wr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