From de551634c676831a1c0c9b2acd23f86230683d58 Mon Sep 17 00:00:00 2001 From: Hakim El Hattab Date: Mon, 20 May 2013 00:18:48 -0400 Subject: [PATCH] initial implentation of preview frame, add semi-fade fragment style, data-full-height support --- css/reveal.css | 134 ++++++++++++++++++++++++++++++++++++++++++ css/reveal.min.css | 2 +- js/reveal.js | 142 +++++++++++++++++++++++++++++++++++++++++++-- js/reveal.min.js | 4 +- 4 files changed, 273 insertions(+), 9 deletions(-) diff --git a/css/reveal.css b/css/reveal.css index 92d41a08..0175a018 100644 --- a/css/reveal.css +++ b/css/reveal.css @@ -171,6 +171,13 @@ body { opacity: 0; } +.reveal .slides section .fragment.semi-fade-out { + opacity: 1; +} + .reveal .slides section .fragment.semi-fade-out.visible { + opacity: 0.5; + } + .reveal .slides section .fragment.highlight-red, .reveal .slides section .fragment.highlight-green, .reveal .slides section .fragment.highlight-blue { @@ -642,6 +649,10 @@ body { transition-duration: 1200ms; } +.reveal .slides>section[data-full-height] { + height: 100%; +} + .reveal .slides>section { left: -50%; top: -50%; @@ -1329,6 +1340,129 @@ body { } +/********************************************* + * LINK PREVIEW OVERLAY + *********************************************/ + + .reveal .preview-link-overlay { + position: absolute; + top: 0; + left: 0; + width: 100%; + height: 100%; + z-index: 1000; + background: rgba( 0, 0, 0, 0.9 ); + opacity: 0; + visibility: hidden; + + -webkit-transition: all 0.3s ease; + -moz-transition: all 0.3s ease; + -ms-transition: all 0.3s ease; + transition: all 0.3s ease; + } + .reveal .preview-link-overlay.visible { + opacity: 1; + visibility: visible; + } + + .reveal .preview-link-overlay .spinner { + position: absolute; + display: block; + top: 50%; + left: 50%; + width: 32px; + height: 32px; + margin: -16px 0 0 -16px; + z-index: 10; + background-image: 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.progress,.zoomed .reveal .controls{opacity:0}.zoomed .reveal .roll span{background:0}.zoomed .reveal .roll span:after{visibility:hidden} \ No newline at end of file diff --git a/js/reveal.js b/js/reveal.js index 4ff34c90..d4532ac0 100644 --- a/js/reveal.js +++ b/js/reveal.js @@ -70,6 +70,9 @@ var Reveal = (function(){ // Apply a 3D roll to links on hover rollingLinks: true, + // Opens links in an iframe preview overlay + previewLinks: false, + // Theme (see /css/theme) theme: null, @@ -380,12 +383,21 @@ var Reveal = (function(){ document.removeEventListener( 'mousewheel', onDocumentMouseScroll, false ); } - // 3D links + // Rolling 3D links if( config.rollingLinks ) { - enable3DLinks(); + enableRollingLinks(); } else { - disable3DLinks(); + disableRollingLinks(); + } + + // Iframe link previews + if( config.previewLinks ) { + enablePreviewLinks(); + } + else { + disablePreviewLinks(); + enablePreviewLinks( '[data-preview-link]' ); } // Load the theme in the config, if it's not already loaded @@ -560,7 +572,7 @@ var Reveal = (function(){ /** * Wrap all links in 3D goodness. */ - function enable3DLinks() { + function enableRollingLinks() { if( supports3DTransforms && !( 'msPerspective' in document.body.style ) ) { var anchors = document.querySelectorAll( SLIDES_SELECTOR + ' a:not(.image)' ); @@ -585,7 +597,7 @@ var Reveal = (function(){ /** * Unwrap all 3D links. */ - function disable3DLinks() { + function disableRollingLinks() { var anchors = document.querySelectorAll( SLIDES_SELECTOR + ' a.roll' ); @@ -601,6 +613,110 @@ var Reveal = (function(){ } + /** + * Retrieves the height of the given element by looking + * at the position and height of its immediate children. + */ + function getAbsoluteHeight( element ) { + + var height = 0; + + if( element ) { + + toArray( element.childNodes ).forEach( function( child ) { + height = Math.max( height, child.offsetTop + child.offsetHeight ); + } ); + + } + + return height; + + } + + /** + * Bind preview frame links. + */ + function enablePreviewLinks( selector ) { + + var anchors = toArray( document.querySelectorAll( selector ? selector : 'a' ) ); + + anchors.forEach( function( element ) { + if( /^(http|www)/gi.test( element.getAttribute( 'href' ) ) ) { + element.addEventListener( 'click', onPreviewLinkClicked, false ); + } + } ); + + } + + /** + * Unbind preview frame links. + */ + function disablePreviewLinks() { + + var anchors = toArray( document.querySelectorAll( 'a' ) ); + + anchors.forEach( function( element ) { + if( /^(http|www)/gi.test( element.getAttribute( 'href' ) ) ) { + element.removeEventListener( 'click', onPreviewLinkClicked, false ); + } + } ); + + } + + /** + * Opens a preview window for the target URL. + */ + function openPreview( url ) { + + closePreview(); + + dom.preview = document.createElement( 'div' ); + dom.preview.classList.add( 'preview-link-overlay' ); + dom.wrapper.appendChild( dom.preview ); + + dom.preview.innerHTML = [ + '
', + '', + '', + '
', + '', + '
', + '', + '
' + ].join(''); + + dom.preview.querySelector( 'iframe' ).addEventListener( 'load', function( event ) { + dom.preview.classList.add( 'loaded' ); + }, false ); + + dom.preview.querySelector( '.close' ).addEventListener( 'click', function( event ) { + closePreview(); + event.preventDefault(); + }, false ); + + dom.preview.querySelector( '.external' ).addEventListener( 'click', function( event ) { + closePreview(); + }, false ); + + setTimeout( function() { + dom.preview.classList.add( 'visible' ); + }, 1 ); + + } + + /** + * Closes the iframe preview window. + */ + function closePreview() { + + if( dom.preview ) { + dom.preview.setAttribute( 'src', '' ); + dom.preview.parentNode.removeChild( dom.preview ); + dom.preview = null; + } + + } + /** * Return a sorted fragments list, ordered by an increasing * "data-fragment-index" attribute. @@ -707,7 +823,7 @@ var Reveal = (function(){ slide.style.top = 0; } else { - slide.style.top = Math.max( - ( slide.offsetHeight / 2 ) - 20, -slideHeight / 2 ) + 'px'; + slide.style.top = Math.max( - ( getAbsoluteHeight( slide ) / 2 ) - 20, -slideHeight / 2 ) + 'px'; } } else { @@ -2117,6 +2233,20 @@ var Reveal = (function(){ } + /** + * Handles clicks on links that are set to preview in the + * iframe overlay. + */ + function onPreviewLinkClicked( event ) { + + var url = event.target.getAttribute( 'href' ); + if( url ) { + openPreview( url ); + event.preventDefault(); + } + + } + // --------------------------------------------------------------------// // ------------------------------- API --------------------------------// diff --git a/js/reveal.min.js b/js/reveal.min.js index b10dea64..d76e2891 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 (2013-05-20, 00:18) * 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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