rough support for vertical centering #70
This commit is contained in:
Hakim El Hattab
parent
f51067b00e
commit
691099c6a2
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@ -48,7 +48,6 @@ html,
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body {
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width: 100%;
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height: 100%;
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min-height: 600px;
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overflow: hidden;
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}
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@ -164,11 +163,6 @@ body {
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* DEFAULT ELEMENT STYLES
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*********************************************/
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.reveal .slides section {
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line-height: 1.2em;
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font-weight: normal;
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}
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.reveal img {
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/* preserve aspect ratio and scale image so it's bound within the section */
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max-width: 100%;
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@ -495,14 +489,20 @@ body {
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* SLIDES
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*********************************************/
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.reveal {
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width: 100%;
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height: 100%;
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min-height: 600px;
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position: relative;
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}
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.reveal .slides {
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position: absolute;
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max-width: 900px;
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min-height: 600px;
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width: 80%;
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height: 60%;
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left: 50%;
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top: 50%;
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margin-top: -320px;
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padding: 20px 0px;
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overflow: visible;
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z-index: 1;
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@ -520,41 +520,60 @@ body {
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-ms-perspective: 600px;
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perspective: 600px;
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-webkit-perspective-origin: 0% 25%;
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-moz-perspective-origin: 0% 25%;
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-ms-perspective-origin: 0% 25%;
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perspective-origin: 0% 25%;
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-webkit-perspective-origin: 0% 0%;
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-moz-perspective-origin: 0% 0%;
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-ms-perspective-origin: 0% 0%;
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perspective-origin: 0% 0%;
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}
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.reveal .slides>section,
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.reveal .slides>section>section {
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display: none;
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visibility: hidden;
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position: absolute;
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width: 100%;
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min-height: 600px;
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z-index: 10;
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line-height: 1.2em;
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font-weight: normal;
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-webkit-transform-style: preserve-3d;
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-moz-transform-style: preserve-3d;
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-ms-transform-style: preserve-3d;
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transform-style: preserve-3d;
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-webkit-transition: all 800ms cubic-bezier(0.260, 0.860, 0.440, 0.985);
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-moz-transition: all 800ms cubic-bezier(0.260, 0.860, 0.440, 0.985);
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-ms-transition: all 800ms cubic-bezier(0.260, 0.860, 0.440, 0.985);
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-o-transition: all 800ms cubic-bezier(0.260, 0.860, 0.440, 0.985);
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transition: all 800ms cubic-bezier(0.260, 0.860, 0.440, 0.985);
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-webkit-transition: -webkit-transform 800ms cubic-bezier(0.260, 0.860, 0.440, 0.985),
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visibility 800ms cubic-bezier(0.260, 0.860, 0.440, 0.985),
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opacity 800ms cubic-bezier(0.260, 0.860, 0.440, 0.985);
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-moz-transition: -moz-transform 800ms cubic-bezier(0.260, 0.860, 0.440, 0.985),
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visibility 800ms cubic-bezier(0.260, 0.860, 0.440, 0.985),
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opacity 800ms cubic-bezier(0.260, 0.860, 0.440, 0.985);
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-ms-transition: -ms-transform 800ms cubic-bezier(0.260, 0.860, 0.440, 0.985),
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visibility 800ms cubic-bezier(0.260, 0.860, 0.440, 0.985),
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opacity 800ms cubic-bezier(0.260, 0.860, 0.440, 0.985);
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-o-transition: -o-transform 800ms cubic-bezier(0.260, 0.860, 0.440, 0.985),
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visibility 800ms cubic-bezier(0.260, 0.860, 0.440, 0.985),
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opacity 800ms cubic-bezier(0.260, 0.860, 0.440, 0.985);
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transition: transform 800ms cubic-bezier(0.260, 0.860, 0.440, 0.985),
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visibility 800ms cubic-bezier(0.260, 0.860, 0.440, 0.985),
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opacity 800ms cubic-bezier(0.260, 0.860, 0.440, 0.985);
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}
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.reveal .slides>section.present {
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display: block;
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.reveal .slides>section.present,
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.reveal .slides>section>section.present {
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visibility: visible;
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z-index: 11;
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opacity: 1;
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}
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.reveal .slides>section {
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margin-left: -50%;
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margin-top: -50%;
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}
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.reveal.center,
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.reveal.center .slides {
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padding: 0;
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min-height: auto;
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}
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@ -1113,6 +1132,14 @@ body {
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transform: none;
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}
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.no-transition {
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-webkit-transition: none;
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-moz-transition: none;
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-ms-transition: none;
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-o-transition: none;
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transition: none;
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}
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/*********************************************
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* BACKGROUND STATES
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50
js/reveal.js
50
js/reveal.js
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@ -29,6 +29,8 @@ var Reveal = (function(){
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// Enable the slide overview mode
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overview: true,
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center: false,
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// Loop the presentation
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loop: false,
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@ -264,6 +266,10 @@ var Reveal = (function(){
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// Updates the presentation to match the current configuration values
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configure();
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// Force an initial layout, will thereafter be invoked as the window
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// is resized
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layout();
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// Read the initial hash
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readURL();
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@ -301,6 +307,10 @@ var Reveal = (function(){
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dom.wrapper.classList.add( config.transition );
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}
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if( config.center ) {
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dom.wrapper.classList.add( 'center' );
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}
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if( config.mouseWheel ) {
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document.addEventListener( 'DOMMouseScroll', onDocumentMouseScroll, false ); // FF
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document.addEventListener( 'mousewheel', onDocumentMouseScroll, false );
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@ -332,6 +342,7 @@ var Reveal = (function(){
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document.addEventListener( 'touchmove', onDocumentTouchMove, false );
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document.addEventListener( 'touchend', onDocumentTouchEnd, false );
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window.addEventListener( 'hashchange', onWindowHashChange, false );
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window.addEventListener( 'resize', onWindowResize, false );
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if( config.keyboard ) {
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document.addEventListener( 'keydown', onDocumentKeyDown, false );
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@ -358,6 +369,7 @@ var Reveal = (function(){
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document.removeEventListener( 'touchmove', onDocumentTouchMove, false );
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document.removeEventListener( 'touchend', onDocumentTouchEnd, false );
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window.removeEventListener( 'hashchange', onWindowHashChange, false );
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window.removeEventListener( 'resize', onWindowResize, false );
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if ( config.progress && dom.progress ) {
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dom.progress.removeEventListener( 'click', preventAndForward( onProgressClick ), false );
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@ -448,6 +460,33 @@ var Reveal = (function(){
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}
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}
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/**
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* Applies JavaScript-controlled layout rules to the
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* presentation.
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*/
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function layout() {
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if( config.center ) {
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// Select all slides, vertical and horizontal
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var slides = Array.prototype.slice.call( document.querySelectorAll( '.reveal .slides section' ) );
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// Determine the minimum top offset for slides
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var minTop = -dom.wrapper.offsetHeight / 2;
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for( var i = 0, len = slides.length; i < len; i++ ) {
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var slide = slides[ i ];
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if( slide.classList.contains( 'stack' ) ) {
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slide.style.marginTop = 0;
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}
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else {
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slide.style.marginTop = Math.max( - ( slide.offsetHeight / 2 ) - 20, minTop ) + 'px';
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}
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}
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}
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}
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/**
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* Displays the overview of slides (quick nav) by
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* scaling down and arranging all slide elements.
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@ -643,6 +682,8 @@ var Reveal = (function(){
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indexh = updateSlides( HORIZONTAL_SLIDES_SELECTOR, h === undefined ? indexh : h );
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indexv = updateSlides( VERTICAL_SLIDES_SELECTOR, v === undefined ? indexv : v );
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layout();
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// Apply the new state
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stateLoop: for( var i = 0, len = state.length; i < len; i++ ) {
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// Check if this state existed on the previous slide. If it
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@ -1284,13 +1325,18 @@ var Reveal = (function(){
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/**
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* Handler for the window level 'hashchange' event.
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*
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* @param {Object} event
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*/
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function onWindowHashChange( event ) {
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readURL();
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}
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/**
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* Handler for the window level 'resize' event.
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*/
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function onWindowResize( event ) {
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layout();
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}
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/**
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* Invoked when a slide is and we're in the overview.
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*/
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