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-rw-r--r--js/reveal.js209
1 files changed, 141 insertions, 68 deletions
diff --git a/js/reveal.js b/js/reveal.js
index 574c943..b48620b 100644
--- a/js/reveal.js
+++ b/js/reveal.js
@@ -3,7 +3,7 @@
* http://lab.hakim.se/reveal-js
* MIT licensed
*
- * Copyright (C) 2016 Hakim El Hattab, http://hakim.se
+ * Copyright (C) 2017 Hakim El Hattab, http://hakim.se
*/
(function( root, factory ) {
if( typeof define === 'function' && define.amd ) {
@@ -163,6 +163,9 @@
// Number of slides away from the current that are visible
viewDistance: 3,
+ // The display mode that will be used to show slides
+ display: 'block',
+
// Script dependencies to load
dependencies: []
@@ -862,7 +865,7 @@
if( data.background ) {
// Auto-wrap image urls in url(...)
- if( /^(http|file|\/\/)/gi.test( data.background ) || /\.(svg|png|jpg|jpeg|gif|bmp)$/gi.test( data.background ) ) {
+ if( /^(http|file|\/\/)/gi.test( data.background ) || /\.(svg|png|jpg|jpeg|gif|bmp)([?#]|$)/gi.test( data.background ) ) {
slide.setAttribute( 'data-background-image', data.background );
}
else {
@@ -887,6 +890,7 @@
// Additional and optional background properties
if( data.backgroundSize ) element.style.backgroundSize = data.backgroundSize;
+ if( data.backgroundSize ) element.setAttribute( 'data-background-size', 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;
@@ -1044,10 +1048,11 @@
// Iframe link previews
if( config.previewLinks ) {
enablePreviewLinks();
+ disablePreviewLinks( '[data-preview-link=false]' );
}
else {
disablePreviewLinks();
- enablePreviewLinks( '[data-preview-link]' );
+ enablePreviewLinks( '[data-preview-link]:not([data-preview-link=false])' );
}
// Remove existing auto-slide controls
@@ -1239,7 +1244,7 @@
if( value === 'null' ) return null;
else if( value === 'true' ) return true;
else if( value === 'false' ) return false;
- else if( value.match( /^\d+$/ ) ) return parseFloat( value );
+ else if( value.match( /^[\d\.]+$/ ) ) return parseFloat( value );
}
return value;
@@ -1583,9 +1588,9 @@
/**
* Unbind preview frame links.
*/
- function disablePreviewLinks() {
+ function disablePreviewLinks( selector ) {
- var anchors = toArray( document.querySelectorAll( 'a' ) );
+ var anchors = toArray( document.querySelectorAll( selector ? selector : 'a' ) );
anchors.forEach( function( element ) {
if( /^(http|www)/gi.test( element.getAttribute( 'href' ) ) ) {
@@ -1643,6 +1648,28 @@
}
/**
+ * Open or close help overlay window.
+ *
+ * @param {Boolean} [override] Flag which overrides the
+ * toggle logic and forcibly sets the desired state. True means
+ * help is open, false means it's closed.
+ */
+ function toggleHelp( override ){
+
+ if( typeof override === 'boolean' ) {
+ override ? showHelp() : closeOverlay();
+ }
+ else {
+ if( dom.overlay ) {
+ closeOverlay();
+ }
+ else {
+ showHelp();
+ }
+ }
+ }
+
+ /**
* Opens an overlay window with help material.
*/
function showHelp() {
@@ -1784,6 +1811,10 @@
updateProgress();
updateParallax();
+ if( isOverview() ) {
+ updateOverview();
+ }
+
}
}
@@ -1999,11 +2030,14 @@
*/
function updateOverview() {
+ var vmin = Math.min( window.innerWidth, window.innerHeight );
+ var scale = Math.max( vmin / 5, 150 ) / vmin;
+
transformSlides( {
overview: [
+ 'scale('+ scale +')',
'translateX('+ ( -indexh * overviewSlideWidth ) +'px)',
- 'translateY('+ ( -indexv * overviewSlideHeight ) +'px)',
- 'translateZ('+ ( window.innerWidth < 400 ? -1000 : -2500 ) +'px)'
+ 'translateY('+ ( -indexv * overviewSlideHeight ) +'px)'
].join( ' ' )
} );
@@ -2409,9 +2443,9 @@
updateControls();
updateProgress();
- updateBackground( true );
updateSlideNumber();
updateSlidesVisibility();
+ updateBackground( true );
updateNotes();
formatEmbeddedContent();
@@ -2887,34 +2921,17 @@
} );
- // Stop any currently playing video background
+ // Stop content inside of previous backgrounds
if( previousBackground ) {
- var previousVideo = previousBackground.querySelector( 'video' );
- if( previousVideo ) previousVideo.pause();
+ stopEmbeddedContent( previousBackground );
}
+ // Start content in the current background
if( currentBackground ) {
- // Start video playback
- var currentVideo = currentBackground.querySelector( 'video' );
- if( currentVideo ) {
-
- var startVideo = function() {
- currentVideo.currentTime = 0;
- currentVideo.play();
- currentVideo.removeEventListener( 'loadeddata', startVideo );
- };
-
- if( currentVideo.readyState > 1 ) {
- startVideo();
- }
- else {
- currentVideo.addEventListener( 'loadeddata', startVideo );
- }
-
- }
+ startEmbeddedContent( currentBackground );
var backgroundImageURL = currentBackground.style.backgroundImage || '';
@@ -3023,7 +3040,7 @@
function showSlide( slide ) {
// Show the slide element
- slide.style.display = 'block';
+ slide.style.display = config.display;
// Media elements with data-src attributes
toArray( slide.querySelectorAll( 'img[data-src], video[data-src], audio[data-src]' ) ).forEach( function( element ) {
@@ -3091,11 +3108,20 @@
// Iframes
else if( backgroundIframe ) {
var iframe = document.createElement( 'iframe' );
+
+ // Only load autoplaying content when the slide is shown to
+ // avoid having it play in the background
+ if( /autoplay=(1|true|yes)/gi.test( backgroundIframe ) ) {
+ iframe.setAttribute( 'data-src', backgroundIframe );
+ }
+ else {
iframe.setAttribute( 'src', backgroundIframe );
- iframe.style.width = '100%';
- iframe.style.height = '100%';
- iframe.style.maxHeight = '100%';
- iframe.style.maxWidth = '100%';
+ }
+
+ iframe.style.width = '100%';
+ iframe.style.height = '100%';
+ iframe.style.maxHeight = '100%';
+ iframe.style.maxWidth = '100%';
background.appendChild( iframe );
}
@@ -3203,11 +3229,12 @@
* Start playback of any embedded content inside of
* the given element.
*
- * @param {HTMLElement} slide
+ * @param {HTMLElement} element
*/
function startEmbeddedContent( element ) {
if( element && !isSpeakerNotes() ) {
+
// Restart GIFs
toArray( element.querySelectorAll( 'img[src$=".gif"]' ) ).forEach( function( el ) {
// Setting the same unchanged source like this was confirmed
@@ -3221,8 +3248,26 @@
return;
}
- if( el.hasAttribute( 'data-autoplay' ) && typeof el.play === 'function' ) {
- el.play();
+ // Autoplay is always on for slide backgrounds
+ var autoplay = el.hasAttribute( 'data-autoplay' ) ||
+ el.hasAttribute( 'data-paused-by-reveal' ) ||
+ !!closestParent( el, '.slide-background' );
+
+ if( autoplay && typeof el.play === 'function' ) {
+
+ el.removeAttribute( 'data-paused-by-reveal' );
+
+ if( el.readyState > 1 ) {
+ startEmbeddedMedia( { target: el } );
+ }
+ else {
+ el.removeEventListener( 'loadeddata', startEmbeddedMedia ); // remove first to avoid dupes
+ el.addEventListener( 'loadeddata', startEmbeddedMedia );
+
+ // `loadeddata` never fires unless we start playing on iPad
+ if( /ipad/gi.test( UA ) ) el.play();
+ }
+
}
} );
@@ -3247,15 +3292,36 @@
el.setAttribute( 'src', el.getAttribute( 'data-src' ) );
}
} );
+
}
}
/**
+ * Starts playing an embedded video/audio element after
+ * it has finished loading.
+ *
+ * @param {object} event
+ */
+ function startEmbeddedMedia( event ) {
+
+ var isAttachedToDOM = !!closestParent( event.target, 'html' ),
+ isVisible = !!closestParent( event.target, '.present' );
+
+ if( isAttachedToDOM && isVisible ) {
+ event.target.currentTime = 0;
+ event.target.play();
+ }
+
+ event.target.removeEventListener( 'loadeddata', startEmbeddedMedia );
+
+ }
+
+ /**
* "Starts" the content of an embedded iframe using the
* postMessage API.
*
- * @param {object} event - postMessage API event
+ * @param {object} event
*/
function startEmbeddedIframe( event ) {
@@ -3263,17 +3329,26 @@
if( iframe && iframe.contentWindow ) {
- // YouTube postMessage API
- if( /youtube\.com\/embed\//.test( iframe.getAttribute( 'src' ) ) && iframe.hasAttribute( 'data-autoplay' ) ) {
- iframe.contentWindow.postMessage( '{"event":"command","func":"playVideo","args":""}', '*' );
- }
- // Vimeo postMessage API
- else if( /player\.vimeo\.com\//.test( iframe.getAttribute( 'src' ) ) && iframe.hasAttribute( 'data-autoplay' ) ) {
- iframe.contentWindow.postMessage( '{"method":"play"}', '*' );
- }
- // Generic postMessage API
- else {
- iframe.contentWindow.postMessage( 'slide:start', '*' );
+ var isAttachedToDOM = !!closestParent( event.target, 'html' ),
+ isVisible = !!closestParent( event.target, '.present' );
+
+ if( isAttachedToDOM && isVisible ) {
+
+ var autoplay = iframe.hasAttribute( 'data-autoplay' ) || !!closestParent( iframe, '.slide-background' );
+
+ // YouTube postMessage API
+ if( /youtube\.com\/embed\//.test( iframe.getAttribute( 'src' ) ) && autoplay ) {
+ iframe.contentWindow.postMessage( '{"event":"command","func":"playVideo","args":""}', '*' );
+ }
+ // Vimeo postMessage API
+ else if( /player\.vimeo\.com\//.test( iframe.getAttribute( 'src' ) ) && autoplay ) {
+ iframe.contentWindow.postMessage( '{"method":"play"}', '*' );
+ }
+ // Generic postMessage API
+ else {
+ iframe.contentWindow.postMessage( 'slide:start', '*' );
+ }
+
}
}
@@ -3284,40 +3359,43 @@
* Stop playback of any embedded content inside of
* the targeted slide.
*
- * @param {HTMLElement} slide
+ * @param {HTMLElement} element
+ * @param {boolean} autoplay Optionally override the
+ * autoplay setting of media elements
*/
- function stopEmbeddedContent( slide ) {
+ function stopEmbeddedContent( element, autoplay ) {
- if( slide && slide.parentNode ) {
+ if( element && element.parentNode ) {
// HTML5 media elements
- toArray( slide.querySelectorAll( 'video, audio' ) ).forEach( function( el ) {
+ toArray( element.querySelectorAll( 'video, audio' ) ).forEach( function( el ) {
if( !el.hasAttribute( 'data-ignore' ) && typeof el.pause === 'function' ) {
+ el.setAttribute('data-paused-by-reveal', '');
el.pause();
}
} );
// Generic postMessage API for non-lazy loaded iframes
- toArray( slide.querySelectorAll( 'iframe' ) ).forEach( function( el ) {
+ toArray( element.querySelectorAll( 'iframe' ) ).forEach( function( el ) {
el.contentWindow.postMessage( 'slide:stop', '*' );
el.removeEventListener( 'load', startEmbeddedIframe );
});
// YouTube postMessage API
- toArray( slide.querySelectorAll( 'iframe[src*="youtube.com/embed/"]' ) ).forEach( function( el ) {
+ toArray( element.querySelectorAll( 'iframe[src*="youtube.com/embed/"]' ) ).forEach( function( el ) {
if( !el.hasAttribute( 'data-ignore' ) && typeof el.contentWindow.postMessage === 'function' ) {
el.contentWindow.postMessage( '{"event":"command","func":"pauseVideo","args":""}', '*' );
}
});
// Vimeo postMessage API
- toArray( slide.querySelectorAll( 'iframe[src*="player.vimeo.com/"]' ) ).forEach( function( el ) {
+ toArray( element.querySelectorAll( 'iframe[src*="player.vimeo.com/"]' ) ).forEach( function( el ) {
if( !el.hasAttribute( 'data-ignore' ) && typeof el.contentWindow.postMessage === 'function' ) {
el.contentWindow.postMessage( '{"method":"pause"}', '*' );
}
});
// Lazy loading iframes
- toArray( slide.querySelectorAll( 'iframe[data-src]' ) ).forEach( function( el ) {
+ toArray( element.querySelectorAll( 'iframe[data-src]' ) ).forEach( function( el ) {
// Only removing the src doesn't actually unload the frame
// in all browsers (Firefox) so we set it to blank first
el.setAttribute( 'src', 'about:blank' );
@@ -3914,7 +3992,7 @@
// If there are media elements with data-autoplay,
// automatically set the autoSlide duration to the
// length of that media. Not applicable if the slide
- // is divided up into fragments.
+ // is divided up into fragments.
// playbackRate is accounted for in the duration.
if( currentSlide.querySelectorAll( '.fragment' ).length === 0 ) {
toArray( currentSlide.querySelectorAll( 'video, audio' ) ).forEach( function( el ) {
@@ -4127,12 +4205,7 @@
// Check if the pressed key is question mark
if( event.shiftKey && event.charCode === 63 ) {
- if( dom.overlay ) {
- closeOverlay();
- }
- else {
- showHelp( true );
- }
+ toggleHelp();
}
}
@@ -4830,9 +4903,6 @@
navigatePrev: navigatePrev,
navigateNext: navigateNext,
- // Shows a help overlay with keyboard shortcuts
- showHelp: showHelp,
-
// Forces an update in slide layout
layout: layout,
@@ -4845,6 +4915,9 @@
// Returns an object with the available fragments as booleans (prev/next)
availableFragments: availableFragments,
+ // Toggles a help overlay with keyboard shortcuts
+ toggleHelp: toggleHelp,
+
// Toggles the overview mode on/off
toggleOverview: toggleOverview,
generated by cgit v1.2.3 (git 2.25.4) at 2024-05-18 12:45:24 +0000