diff options
Diffstat (limited to 'js')
| -rw-r--r-- | js/reveal.js | 446 | ||||
| -rw-r--r-- | js/reveal.min.js | 4 |
2 files changed, 396 insertions, 54 deletions
diff --git a/js/reveal.js b/js/reveal.js index 132237a..e7788c2 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, @@ -79,6 +82,9 @@ var Reveal = (function(){ // Transition speed transitionSpeed: 'default', // default/fast/slow + // Transition style for full page slide backgrounds + backgroundTransition: 'default', // default/linear + // Script dependencies to load dependencies: [] }, @@ -186,6 +192,13 @@ var Reveal = (function(){ dom.wrapper = document.querySelector( '.reveal' ); dom.slides = document.querySelector( '.reveal .slides' ); + // Background element + if( !document.querySelector( '.reveal .backgrounds' ) ) { + dom.background = document.createElement( 'div' ); + dom.background.classList.add( 'backgrounds' ); + dom.wrapper.appendChild( dom.background ); + } + // Progress bar if( !dom.wrapper.querySelector( '.progress' ) ) { var progressElement = document.createElement( 'div' ); @@ -205,11 +218,11 @@ 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 @@ -238,6 +251,86 @@ var Reveal = (function(){ } /** + * Creates the slide background elements and appends them + * to the background container. One element is created per + * slide no matter if the given slide has visible background. + */ + function createBackgrounds() { + + if( isPrintingPDF() ) { + document.body.classList.add( 'print-pdf' ); + } + + // Clear prior backgrounds + dom.background.innerHTML = ''; + dom.background.classList.add( 'no-transition' ); + + // Helper method for creating a background element for the + // given slide + function _createBackground( slide, container ) { + + var data = { + background: slide.getAttribute( 'data-background' ), + backgroundSize: slide.getAttribute( 'data-background-size' ), + backgroundColor: slide.getAttribute( 'data-background-color' ), + backgroundRepeat: slide.getAttribute( 'data-background-repeat' ), + backgroundPosition: slide.getAttribute( 'data-background-position' ) + }; + + var element = document.createElement( 'div' ); + element.className = 'slide-background'; + + if( data.background ) { + // Auto-wrap image urls in url(...) + if( /\.(png|jpg|jpeg|gif|bmp)$/gi.test( data.background ) ) { + element.style.backgroundImage = 'url('+ data.background +')'; + } + else { + element.style.background = data.background; + } + } + + // Additional and optional background properties + if( data.backgroundSize ) element.style.backgroundSize = data.backgroundSize; + if( data.backgroundColor ) element.style.backgroundColor = data.backgroundColor; + if( data.backgroundRepeat ) element.style.backgroundRepeat = data.backgroundRepeat; + if( data.backgroundPosition ) element.style.backgroundPosition = data.backgroundPosition; + + container.appendChild( element ); + + return element; + + } + + // Iterate over all horizontal slides + toArray( document.querySelectorAll( HORIZONTAL_SLIDES_SELECTOR ) ).forEach( function( slideh ) { + + var backgroundStack; + + if( isPrintingPDF() ) { + backgroundStack = _createBackground( slideh, slideh ); + } + else { + backgroundStack = _createBackground( slideh, dom.background ); + } + + // Iterate over all vertical slides + toArray( slideh.querySelectorAll( 'section' ) ).forEach( function( slidev ) { + + if( isPrintingPDF() ) { + _createBackground( slidev, slidev ); + } + else { + _createBackground( slidev, backgroundStack ); + } + + } ); + + } ); + + } + + /** * Hides the address bar if we're on a mobile device. */ function hideAddressBar() { @@ -348,6 +441,7 @@ var Reveal = (function(){ dom.wrapper.classList.add( config.transition ); dom.wrapper.setAttribute( 'data-transition-speed', config.transitionSpeed ); + dom.wrapper.setAttribute( 'data-background-transition', config.backgroundTransition ); if( dom.controls ) { dom.controls.style.display = ( config.controls && dom.controls ) ? 'block' : 'none'; @@ -380,12 +474,21 @@ var Reveal = (function(){ document.removeEventListener( 'mousewheel', onDocumentMouseScroll, false ); } - // 3D links + // Rolling 3D links if( config.rollingLinks ) { - enable3DLinks(); + enableRollingLinks(); + } + else { + disableRollingLinks(); + } + + // Iframe link previews + if( config.previewLinks ) { + enablePreviewLinks(); } else { - disable3DLinks(); + disablePreviewLinks(); + enablePreviewLinks( '[data-preview-link]' ); } // Load the theme in the config, if it's not already loaded @@ -524,6 +627,50 @@ 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 ) { + var absoluteChildren = 0; + + toArray( element.childNodes ).forEach( function( child ) { + + if( typeof child.offsetTop === 'number' && child.style ) { + // Count # of abs children + if( child.style.position === 'absolute' ) { + absoluteChildren += 1; + } + + height = Math.max( height, child.offsetTop + child.offsetHeight ); + } + + } ); + + // If there are no absolute children, use offsetHeight + if( absoluteChildren === 0 ) { + height = element.offsetHeight; + } + + } + + return height; + + } + + /** + * Checks if this instance is being used to print a PDF. + */ + function isPrintingPDF() { + + return ( /print-pdf/gi ).test( window.location.search ); + + } + + /** * Causes the address bar to hide on mobile devices, * more vertical space ftw. */ @@ -560,7 +707,7 @@ 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 +732,7 @@ var Reveal = (function(){ /** * Unwrap all 3D links. */ - function disable3DLinks() { + function disableRollingLinks() { var anchors = document.querySelectorAll( SLIDES_SELECTOR + ' a.roll' ); @@ -602,6 +749,90 @@ var Reveal = (function(){ } /** + * 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 = [ + '<header>', + '<a class="close" href="#"><span class="icon"></span></a>', + '<a class="external" href="'+ url +'" target="_blank"><span class="icon"></span></a>', + '</header>', + '<div class="spinner"></div>', + '<div class="viewport">', + '<iframe src="'+ url +'"></iframe>', + '</div>' + ].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. * @@ -639,7 +870,7 @@ var Reveal = (function(){ */ function layout() { - if( dom.wrapper ) { + if( dom.wrapper && !isPrintingPDF() ) { // Available space to scale within var availableWidth = dom.wrapper.offsetWidth, @@ -707,7 +938,7 @@ 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 { @@ -748,7 +979,10 @@ var Reveal = (function(){ function getPreviousVerticalIndex( stack ) { if( typeof stack === 'object' && typeof stack.setAttribute === 'function' && stack.classList.contains( 'stack' ) ) { - return parseInt( stack.getAttribute( 'data-previous-indexv' ) || 0, 10 ); + // Prefer manually defined start-indexv + var attributeName = stack.hasAttribute( 'data-start-indexv' ) ? 'data-start-indexv' : 'data-previous-indexv'; + + return parseInt( stack.getAttribute( attributeName ) || 0, 10 ); } return 0; @@ -1128,7 +1362,8 @@ var Reveal = (function(){ } // Dispatch an event if the slide changed - if( indexh !== indexhBefore || indexv !== indexvBefore ) { + var slideChanged = ( indexh !== indexhBefore || indexv !== indexvBefore ); + if( slideChanged ) { dispatchEvent( 'slidechanged', { 'indexh': indexh, 'indexv': indexv, @@ -1165,11 +1400,14 @@ var Reveal = (function(){ } // Handle embedded content - stopEmbeddedContent( previousSlide ); - startEmbeddedContent( currentSlide ); + if( slideChanged ) { + stopEmbeddedContent( previousSlide ); + startEmbeddedContent( currentSlide ); + } updateControls(); updateProgress(); + updateBackground(); } @@ -1193,8 +1431,12 @@ var Reveal = (function(){ // Start auto-sliding if it's enabled cueAutoSlide(); + // Re-create the slide backgrounds + createBackgrounds(); + updateControls(); updateProgress(); + updateBackground(); } @@ -1251,6 +1493,9 @@ var Reveal = (function(){ element.classList.remove( 'present' ); element.classList.remove( 'future' ); + // http://www.w3.org/html/wg/drafts/html/master/editing.html#the-hidden-attribute + element.setAttribute( 'hidden', '' ); + if( i < index ) { // Any element previous to index is given the 'past' class element.classList.add( reverse ? 'future' : 'past' ); @@ -1268,6 +1513,7 @@ var Reveal = (function(){ // Mark the current slide as present slides[index].classList.add( 'present' ); + slides[index].removeAttribute( 'hidden' ); // If this slide has a state associated with it, add it // onto the current state of the deck @@ -1400,6 +1646,37 @@ var Reveal = (function(){ } /** + * Updates the background elements to reflect the current + * slide. + */ + function updateBackground() { + + // Update the classes of all backgrounds to match the + // states of their slides (past/present/future) + toArray( dom.background.childNodes ).forEach( function( backgroundh, h ) { + + // Reverse past/future classes when in RTL mode + var horizontalPast = config.rtl ? 'future' : 'past', + horizontalFuture = config.rtl ? 'past' : 'future'; + + backgroundh.className = 'slide-background ' + ( h < indexh ? horizontalPast : h > indexh ? horizontalFuture : 'present' ); + + toArray( backgroundh.childNodes ).forEach( function( backgroundv, v ) { + + backgroundv.className = 'slide-background ' + ( v < indexv ? 'past' : v > indexv ? 'future' : 'present' ); + + } ); + + } ); + + // Allow the first background to apply without transition + setTimeout( function() { + dom.background.classList.remove( 'no-transition' ); + }, 1 ); + + } + + /** * Determine what available routes there are for navigation. * * @return {Object} containing four booleans: left/right/up/down @@ -1629,10 +1906,18 @@ var Reveal = (function(){ var fragments = sortFragments( currentSlide.querySelectorAll( '.fragment:not(.visible)' ) ); if( fragments.length ) { - fragments[0].classList.add( 'visible' ); + // Find the index of the next fragment + var index = fragments[0].getAttribute( 'data-fragment-index' ); + + // Find all fragments with the same index + fragments = currentSlide.querySelectorAll( '.fragment[data-fragment-index="'+ index +'"]' ); - // Notify subscribers of the change - dispatchEvent( 'fragmentshown', { fragment: fragments[0] } ); + toArray( fragments ).forEach( function( element ) { + element.classList.add( 'visible' ); + + // Notify subscribers of the change + dispatchEvent( 'fragmentshown', { fragment: element } ); + } ); updateControls(); return true; @@ -1655,10 +1940,18 @@ var Reveal = (function(){ var fragments = sortFragments( currentSlide.querySelectorAll( '.fragment.visible' ) ); if( fragments.length ) { - fragments[ fragments.length - 1 ].classList.remove( 'visible' ); + // Find the index of the previous fragment + var index = fragments[ fragments.length - 1 ].getAttribute( 'data-fragment-index' ); - // Notify subscribers of the change - dispatchEvent( 'fragmenthidden', { fragment: fragments[ fragments.length - 1 ] } ); + // Find all fragments with the same index + fragments = currentSlide.querySelectorAll( '.fragment[data-fragment-index="'+ index +'"]' ); + + toArray( fragments ).forEach( function( f ) { + f.classList.remove( 'visible' ); + + // Notify subscribers of the change + dispatchEvent( 'fragmenthidden', { fragment: f } ); + } ); updateControls(); return true; @@ -1805,40 +2098,75 @@ var Reveal = (function(){ // keyboard modifier key is present if( hasFocus || (event.shiftKey && event.keyCode !== 32) || event.altKey || event.ctrlKey || event.metaKey ) return; - var triggered = true; - - // while paused only allow "unpausing" keyboard events (b and .) + // While paused only allow "unpausing" keyboard events (b and .) if( isPaused() && [66,190,191].indexOf( event.keyCode ) === -1 ) { return false; } - switch( event.keyCode ) { - // p, page up - case 80: case 33: navigatePrev(); break; - // n, page down - case 78: case 34: navigateNext(); break; - // h, left - case 72: case 37: navigateLeft(); break; - // l, right - case 76: case 39: navigateRight(); break; - // k, up - case 75: case 38: navigateUp(); break; - // j, down - case 74: case 40: navigateDown(); break; - // home - case 36: slide( 0 ); break; - // end - case 35: slide( Number.MAX_VALUE ); break; - // space - case 32: isOverview() ? deactivateOverview() : event.shiftKey ? navigatePrev() : navigateNext(); break; - // return - case 13: isOverview() ? deactivateOverview() : triggered = false; break; - // b, period, Logitech presenter tools "black screen" button - case 66: case 190: case 191: togglePause(); break; - // f - case 70: enterFullscreen(); break; - default: - triggered = false; + var triggered = false; + + // 1. User defined key bindings + if( typeof config.keyboard === 'object' ) { + + for( var key in config.keyboard ) { + + // Check if this binding matches the pressed key + if( parseInt( key, 10 ) === event.keyCode ) { + + var value = config.keyboard[ key ]; + + // Calback function + if( typeof value === 'function' ) { + value.apply( null, [ event ] ); + } + // String shortcuts to reveal.js API + else if( typeof value === 'string' && typeof Reveal[ value ] === 'function' ) { + Reveal[ value ].call(); + } + + triggered = true; + + } + + } + + } + + // 2. System defined key bindings + if( triggered === false ) { + + // Assume true and try to prove false + triggered = true; + + switch( event.keyCode ) { + // p, page up + case 80: case 33: navigatePrev(); break; + // n, page down + case 78: case 34: navigateNext(); break; + // h, left + case 72: case 37: navigateLeft(); break; + // l, right + case 76: case 39: navigateRight(); break; + // k, up + case 75: case 38: navigateUp(); break; + // j, down + case 74: case 40: navigateDown(); break; + // home + case 36: slide( 0 ); break; + // end + case 35: slide( Number.MAX_VALUE ); break; + // space + case 32: isOverview() ? deactivateOverview() : event.shiftKey ? navigatePrev() : navigateNext(); break; + // return + case 13: isOverview() ? deactivateOverview() : triggered = false; break; + // b, period, Logitech presenter tools "black screen" button + case 66: case 190: case 191: togglePause(); break; + // f + case 70: enterFullscreen(); break; + default: + triggered = false; + } + } // If the input resulted in a triggered action we should prevent @@ -2098,6 +2426,20 @@ 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 --------------------------------// @@ -2226,4 +2568,4 @@ var Reveal = (function(){ } }; -})();
\ No newline at end of file +})(); diff --git a/js/reveal.min.js b/js/reveal.min.js index 1b78039..2b947ae 100644 --- a/js/reveal.min.js +++ b/js/reveal.min.js @@ -1,8 +1,8 @@ /*! - * reveal.js 2.4.0 (2013-04-29, 22:06) + * reveal.js 2.5.0 (2013-06-16, 11:49) * 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="<span></span>",Tt.wrapper.appendChild(e)}if(!Tt.wrapper.querySelector(".controls")){var t=document.createElement("aside");t.classList.add("controls"),t.innerHTML='<div 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