From f3f5d7780afda0e419a55e16cda522321b0e2c3e Mon Sep 17 00:00:00 2001 From: Hakim El Hattab Date: Tue, 4 Jun 2013 19:42:33 +0200 Subject: [PATCH] started the new per-slide background implementation (#453) --- css/reveal.css | 50 +++++++++++++++++++++++++- css/reveal.min.css | 2 +- js/reveal.js | 87 +++++++++++++++++++++++++++++++++++++++++++--- js/reveal.min.js | 4 +-- 4 files changed, 135 insertions(+), 8 deletions(-) diff --git a/css/reveal.css b/css/reveal.css index 92d41a08..59d3c453 100644 --- a/css/reveal.css +++ b/css/reveal.css @@ -1255,7 +1255,7 @@ body { /********************************************* - * BACKGROUND STATES + * BACKGROUND STATES [DEPRECATED] *********************************************/ .reveal .state-background { @@ -1299,6 +1299,54 @@ body { } +/********************************************* + * + *********************************************/ + +.reveal>.background { + position: absolute; + width: 100%; + height: 100%; +} + .reveal>.background div { + position: absolute; + width: 100%; + height: 100%; + opacity: 0; + visibility: hidden; + + background-color: rgba( 0, 0, 0, 0 ); + background-position: 50% 50%; + background-repeat: no-repeat; + background-size: cover; + + -webkit-transition: all 800ms ease; + -moz-transition: all 800ms ease; + -ms-transition: all 800ms ease; + -o-transition: all 800ms ease; + transition: all 800ms ease; + } + .reveal>.background div.present { + opacity: 1; + visibility: visible; + } + + +/* Global transition speed settings */ +.reveal[data-transition-speed="fast"] .background div { + -webkit-transition-duration: 400ms; + -moz-transition-duration: 400ms; + -ms-transition-duration: 400ms; + transition-duration: 400ms; +} +.reveal[data-transition-speed="slow"] .background div { + -webkit-transition-duration: 1200ms; + -moz-transition-duration: 1200ms; + -ms-transition-duration: 1200ms; + transition-duration: 1200ms; +} + + /********************************************* * RTL SUPPORT 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newline at end of file diff --git a/js/reveal.js b/js/reveal.js index 4ff34c90..7d8020fa 100644 --- a/js/reveal.js +++ b/js/reveal.js @@ -186,6 +186,13 @@ var Reveal = (function(){ dom.wrapper = document.querySelector( '.reveal' ); dom.slides = document.querySelector( '.reveal .slides' ); + // Background element + if( !document.querySelector( '.reveal .background' ) ) { + dom.background = document.createElement( 'div' ); + dom.background.classList.add( 'background' ); + dom.wrapper.appendChild( dom.background ); + } + // Progress bar if( !dom.wrapper.querySelector( '.progress' ) ) { var progressElement = document.createElement( 'div' ); @@ -205,11 +212,11 @@ var Reveal = (function(){ dom.wrapper.appendChild( controlsElement ); } - // Presentation background element + // State background element [DEPRECATED] if( !dom.wrapper.querySelector( '.state-background' ) ) { - var backgroundElement = document.createElement( 'div' ); - backgroundElement.classList.add( 'state-background' ); - dom.wrapper.appendChild( backgroundElement ); + var stateBackgroundElement = document.createElement( 'div' ); + stateBackgroundElement.classList.add( 'state-background' ); + dom.wrapper.appendChild( stateBackgroundElement ); } // Overlay graphic which is displayed during the paused mode @@ -237,6 +244,54 @@ var Reveal = (function(){ } + /** + * Creates the slide background elements and appends them + * to the background container. + */ + function createBackgrounds() { + + // Clear prior backgrounds + dom.background.innerHTML = ''; + + // Helper method for creating a background element for the + // given slide + function _createBackground( slide, container ) { + + var background = slide.getAttribute( 'data-background' ); + var element = document.createElement( 'div' ); + + if( background ) { + // Auto-wrap image urls in url(...) + if( /\.(png|jpg|jpeg|gif|bmp|)$/gi.test( background ) ) { + element.style.backgroundImage = 'url('+ background +')'; + } + else { + element.style.background = background; + } + } + + container.appendChild( element ); + + return element; + + } + + // Iterate over all horizontal slides + toArray( document.querySelectorAll( HORIZONTAL_SLIDES_SELECTOR ) ).forEach( function( slideh ) { + + var backgroundStack = _createBackground( slideh, dom.background ); + + // Iterate over all vertical slides + toArray( slideh.querySelectorAll( 'section' ) ).forEach( function( slidev ) { + + _createBackground( slidev, backgroundStack ); + + } ); + + } ); + + } + /** * Hides the address bar if we're on a mobile device. */ @@ -1173,6 +1228,7 @@ var Reveal = (function(){ updateControls(); updateProgress(); + updateBackground(); } @@ -1196,8 +1252,12 @@ var Reveal = (function(){ // Start auto-sliding if it's enabled cueAutoSlide(); + // Re-create the slide backgrounds + createBackgrounds(); + updateControls(); updateProgress(); + updateBackground(); } @@ -1402,6 +1462,25 @@ var Reveal = (function(){ } + /** + * + */ + function updateBackground() { + + toArray( dom.background.childNodes ).forEach( function( backgroundh, h ) { + + backgroundh.className = ( h < indexh ? 'past' : h > indexh ? 'future' : 'present' ); + + toArray( backgroundh.childNodes ).forEach( function( backgroundv, v ) { + + backgroundv.className = ( v < indexv ? 'past' : v > indexv ? 'future' : 'present' ); + + } ); + + } ); + + } + /** * Determine what available routes there are for navigation. * diff --git a/js/reveal.min.js b/js/reveal.min.js index b10dea64..4df60ead 100644 --- a/js/reveal.min.js +++ b/js/reveal.min.js @@ -1,8 +1,8 @@ /*! - * reveal.js 2.5.0 (2013-05-12, 09:44) + * reveal.js 2.5.0 (2013-06-04, 19:39) * 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 Mt||kt?(window.addEventListener("load",h,!1),c(bt,e),n(),r(),void 0):(document.body.setAttribute("class","no-transforms"),void 0)}function t(){if(Tt.theme=document.querySelector("#theme"),Tt.wrapper=document.querySelector(".reveal"),Tt.slides=document.querySelector(".reveal .slides"),!Tt.wrapper.querySelector(".progress")){var e=document.createElement("div");e.classList.add("progress"),e.innerHTML="",Tt.wrapper.appendChild(e)}if(!Tt.wrapper.querySelector(".controls")){var t=document.createElement("aside");t.classList.add("controls"),t.innerHTML='
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