From 86216ac645d8bb696d090a90d5280dd8f963a44a Mon Sep 17 00:00:00 2001 From: Hakim El Hattab Date: Sun, 15 Sep 2013 17:45:27 -0400 Subject: [PATCH] use 'url()'-free path when specifying parallax image, refactor so that parallax is applied to background class, remove unused attributes #595 --- README.md | 12 +++++------- css/reveal.css | 6 +++--- css/reveal.min.css | 2 +- index.html | 4 ++-- js/reveal.js | 32 +++++++++++++++++--------------- js/reveal.min.js | 4 ++-- 6 files changed, 30 insertions(+), 30 deletions(-) diff --git a/README.md b/README.md index 337ee603..07159935 100644 --- a/README.md +++ b/README.md @@ -110,10 +110,10 @@ Reveal.initialize({ backgroundTransition: 'default' // default/linear/none // Parallax background image - parallaxBackgroundImage: '', // CSS syntax, e.g. "url('a.jpg')" + parallaxBackgroundImage: '', // e.g. "'https://s3.amazonaws.com/hakim-static/reveal-js/reveal-parallax-1.jpg'" // Parallax background size - parallaxBackgroundSize: '', // CSS syntax, e.g. "3000px 2000px" + parallaxBackgroundSize: '', // CSS syntax, e.g. "2100px 900px" // Number of slides away from the current that are visible viewDistance: 3, @@ -303,16 +303,16 @@ Backgrounds transition using a fade animation by default. This can be changed to ### Parallax Background -If you want to use the parallax scrolling background, set the two following config properties when initializing reveal.js (the third one is optional ) +If you want to use a parallax scrolling background, set the two following config properties when initializing reveal.js (the third one is optional). ```javascript Reveal.initialize({ // Parallax background image - parallaxBackgroundImage: '', // CSS syntax, e.g. "url('a.jpg')" + parallaxBackgroundImage: '', // e.g. "https://s3.amazonaws.com/hakim-static/reveal-js/reveal-parallax-1.jpg" // Parallax background size - parallaxBackgroundSize: '', // CSS syntax, e.g. "3000px 2000px" - currently only pixels are supported (don't use % or auto) + parallaxBackgroundSize: '', // CSS syntax, e.g. "2100px 900px" - currently only pixels are supported (don't use % or auto) // This slide transition gives best results: transition: linear @@ -322,8 +322,6 @@ Reveal.initialize({ Make sure that the background size is much bigger than screen size to allow for some scrolling. -The image used in the background is made by Eli Mergel and is published under Creative Commons license on [Flickr](https://secure.flickr.com/photos/sp1te/3436256585/sizes/o/in/pool-856427@N25/). - ### Slide Transitions diff --git a/css/reveal.css b/css/reveal.css index 362233ce..53bd2ba5 100644 --- a/css/reveal.css +++ b/css/reveal.css @@ -1406,7 +1406,7 @@ body { * PARALLAX BACKGROUND *********************************************/ -.reveal[data-parallax-background] { +.reveal.has-parallax-background .backgrounds { -webkit-transition: all 0.8s ease; -moz-transition: all 0.8s ease; -ms-transition: all 0.8s ease; @@ -1414,13 +1414,13 @@ body { } /* Global transition speed settings */ -.reveal[data-parallax-background][data-transition-speed="fast"] { +.reveal.has-parallax-background[data-transition-speed="fast"] .backgrounds { -webkit-transition-duration: 400ms; -moz-transition-duration: 400ms; -ms-transition-duration: 400ms; transition-duration: 400ms; } -.reveal[data-parallax-background][data-transition-speed="slow"] { +.reveal.has-parallax-background[data-transition-speed="slow"] .backgrounds { -webkit-transition-duration: 1200ms; -moz-transition-duration: 1200ms; -ms-transition-duration: 1200ms; diff --git a/css/reveal.min.css b/css/reveal.min.css index 55f1ef2d..b6220d80 100644 --- a/css/reveal.min.css +++ b/css/reveal.min.css @@ -4,4 +4,4 @@ * MIT licensed * * Copyright (C) 2013 Hakim El Hattab, http://hakim.se - */ html,body,.reveal div,.reveal span,.reveal applet,.reveal object,.reveal iframe,.reveal h1,.reveal h2,.reveal h3,.reveal h4,.reveal h5,.reveal h6,.reveal p,.reveal blockquote,.reveal pre,.reveal a,.reveal abbr,.reveal acronym,.reveal address,.reveal big,.reveal cite,.reveal code,.reveal del,.reveal dfn,.reveal em,.reveal img,.reveal ins,.reveal kbd,.reveal q,.reveal s,.reveal samp,.reveal small,.reveal strike,.reveal strong,.reveal sub,.reveal sup,.reveal 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a/index.html b/index.html index 6cce56b7..9de144bd 100644 --- a/index.html +++ b/index.html @@ -367,8 +367,8 @@ function linkify( selector ) { transition: Reveal.getQueryHash().transition || 'default', // default/cube/page/concave/zoom/linear/fade/none // Parallax scrolling - // parallaxBackgroundImage: "url('https://s3.amazonaws.com/hakim-static/reveal-js/reveal-parallax-1.jpg')", - // parallaxBackgroundSize: "2100px 900px", + // parallaxBackgroundImage: 'https://s3.amazonaws.com/hakim-static/reveal-js/reveal-parallax-1.jpg', + // parallaxBackgroundSize: '2100px 900px', // Optional libraries used to extend on reveal.js dependencies: [ diff --git a/js/reveal.js b/js/reveal.js index f962f51b..60a02e87 100644 --- a/js/reveal.js +++ b/js/reveal.js @@ -93,7 +93,7 @@ var Reveal = (function(){ backgroundTransition: 'default', // default/linear/none // Parallax background image - parallaxBackgroundImage: '', // CSS syntax, e.g. "url('a.jpg')" + parallaxBackgroundImage: '', // CSS syntax, e.g. "a.jpg" // Parallax background size parallaxBackgroundSize: '', // CSS syntax, e.g. "3000px 2000px" @@ -476,24 +476,27 @@ var Reveal = (function(){ } ); - // Add parallax background if specified so - var parallaxBackgroundImage = config.parallaxBackgroundImage, - parallaxBackgroundSize = config.parallaxBackgroundSize; + // Add parallax background if specified + if( config.parallaxBackgroundImage ) { - if( parallaxBackgroundImage ) { - dom.wrapper.style.background = parallaxBackgroundImage; - dom.wrapper.style.backgroundSize = parallaxBackgroundSize; + dom.background.style.backgroundImage = 'url("' + config.parallaxBackgroundImage + '")'; + dom.background.style.backgroundSize = config.parallaxBackgroundSize; // Make sure the below properties are set on the element - these properties are // needed for proper transitions to be set on the element via CSS. To remove // annoying background slide-in effect when the presentation starts, apply // these properties after short time delay setTimeout( function() { - dom.wrapper.setAttribute( 'data-parallax-background', parallaxBackgroundImage ); - dom.wrapper.setAttribute( 'data-parallax-background-size', parallaxBackgroundSize ); + dom.wrapper.classList.add( 'has-parallax-background' ); }, 1 ); } + else { + + dom.background.style.backgroundImage = ''; + dom.wrapper.classList.remove( 'has-parallax-background' ); + + } } @@ -1888,13 +1891,12 @@ var Reveal = (function(){ */ function updateParallax() { - // Animate parallax background - if( dom.wrapper.getAttribute( 'data-parallax-background' ) || config.parallaxBackgroundImage ) { + if( config.parallaxBackgroundImage ) { var horizontalSlides = document.querySelectorAll( HORIZONTAL_SLIDES_SELECTOR ), verticalSlides = document.querySelectorAll( VERTICAL_SLIDES_SELECTOR ); - var backgroundSize = dom.wrapper.style.backgroundSize.split( ' ' ), + var backgroundSize = dom.background.style.backgroundSize.split( ' ' ), backgroundWidth, backgroundHeight; if( backgroundSize.length === 1 ) { @@ -1905,15 +1907,15 @@ var Reveal = (function(){ backgroundHeight = parseInt( backgroundSize[1], 10 ); } - var slideWidth = dom.wrapper.offsetWidth; + var slideWidth = dom.background.offsetWidth; var horizontalSlideCount = horizontalSlides.length; var horizontalOffset = -( backgroundWidth - slideWidth ) / ( horizontalSlideCount-1 ) * indexh; - var slideHeight = dom.wrapper.offsetHeight; + var slideHeight = dom.background.offsetHeight; var verticalSlideCount = verticalSlides.length; var verticalOffset = verticalSlideCount > 0 ? -( backgroundHeight - slideHeight ) / ( verticalSlideCount-1 ) * indexv : 0; - dom.wrapper.style.backgroundPosition = horizontalOffset + 'px ' + verticalOffset + 'px'; + dom.background.style.backgroundPosition = horizontalOffset + 'px ' + verticalOffset + 'px'; } diff --git a/js/reveal.min.js b/js/reveal.min.js index bc796635..f655b160 100644 --- a/js/reveal.min.js +++ b/js/reveal.min.js @@ -1,8 +1,8 @@ /*! - * reveal.js 2.6.0-dev (2013-09-15, 14:57) + * reveal.js 2.6.0-dev (2013-09-15, 17:38) * http://lab.hakim.se/reveal-js * MIT licensed * * Copyright (C) 2013 Hakim El Hattab, http://hakim.se */ -var Reveal=function(){"use strict";function a(a){return b(),Lb||Kb?(window.addEventListener("load",C,!1),l(Rb,a),s(),c(),void 0):(document.body.setAttribute("class","no-transforms"),void 0)}function b(){Kb="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,Lb="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,Mb=navigator.userAgent.match(/(iphone|ipod|android)/gi)}function c(){function a(){c.length&&head.js.apply(null,c),d()}for(var b=[],c=[],e=0,f=Rb.dependencies.length;f>e;e++){var g=Rb.dependencies[e];(!g.condition||g.condition())&&(g.async?c.push(g.src):b.push(g.src),"function"==typeof g.callback&&head.ready(g.src.match(/([\w\d_\-]*)\.?js$|[^\\\/]*$/i)[0],g.callback))}b.length?(head.ready(a),head.js.apply(null,b)):a()}function d(){f(),e(),i(),ab(),setTimeout(function(){Wb.slides.classList.remove("no-transition"),Sb=!0,u("ready",{indexh:Gb,indexv:Hb,currentSlide:Jb})},1)}function e(){var a=m(document.querySelectorAll(Ob));a.forEach(function(a){var b=m(a.querySelectorAll("section"));b.forEach(function(a,b){b>0&&a.classList.add("future")})})}function f(){Wb.theme=document.querySelector("#theme"),Wb.wrapper=document.querySelector(".reveal"),Wb.slides=document.querySelector(".reveal .slides"),Wb.slides.classList.add("no-transition"),Wb.background=g(Wb.wrapper,"div","backgrounds",null),Wb.progress=g(Wb.wrapper,"div","progress",""),Wb.progressbar=Wb.progress.querySelector("span"),g(Wb.wrapper,"aside","controls",'
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