From cd78bbd48d6793697420bd5d97bf5bc17b4a3c37 Mon Sep 17 00:00:00 2001 From: Hakim El Hattab Date: Mon, 9 Mar 2020 20:57:12 +0100 Subject: [PATCH] move overview to new module --- dist/reveal.min.js | 2 +- js/controllers/fragments.js | 4 +- js/controllers/overview.js | 249 ++++++++++++++++++++++ js/reveal.js | 400 +++++++++--------------------------- 4 files changed, 351 insertions(+), 304 deletions(-) create mode 100644 js/controllers/overview.js diff --git a/dist/reveal.min.js b/dist/reveal.min.js index ee4b254..c3451eb 100644 --- a/dist/reveal.min.js +++ b/dist/reveal.min.js @@ -5,4 +5,4 @@ * * Copyright (C) 2020 Hakim El Hattab, https://hakim.se */ -!function(e){var t={};function a(r){if(t[r])return t[r].exports;var n=t[r]={i:r,l:!1,exports:{}};return e[r].call(n.exports,n,n.exports,a),n.l=!0,n.exports}a.m=e,a.c=t,a.d=function(e,t,r){a.o(e,t)||Object.defineProperty(e,t,{enumerable:!0,get:r})},a.r=function(e){"undefined"!=typeof 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`,I.overlay.querySelector("iframe").addEventListener("load",e=>{I.overlay.classList.add("loaded")},!1),I.overlay.querySelector(".close").addEventListener("click",e=>{fe(),e.preventDefault()},!1),I.overlay.querySelector(".external").addEventListener("click",e=>{fe()},!1)}(t),e.preventDefault())}}function jt(e){Le()&&!1===l.loop?(Ie(0,0),ut()):Y?ut():ct()}return r(a,{VERSION:"4.0.0-dev",initialize:function(){if(e)return I.wrapper=e,I.slides=e.querySelector(".slides"),window.addEventListener("load",me,!1),l={...E,...t,...a.getQueryHash()},T.load(l.dependencies).then(Q),a;console.warn("reveal.js can not initialize without a valid .reveal element.")},configure:re,sync:Te,syncSlide:function(e=A){ie(e),Be(e),B.load(e),Ve(),ze()},syncFragments:Be,slide:Ie,left:ht,right:pt,up:gt,down:ft,prev:mt,next:vt,navigateTo:Ie,navigateLeft:ht,navigateRight:pt,navigateUp:gt,navigateDown:ft,navigatePrev:mt,navigateNext:vt,navigateFragment:()=>H.goto,prevFragment:()=>H.prev,nextFragment:()=>H.next,layout:me,shuffle:Oe,availableRoutes:Xe,availableFragments:()=>H.availableRoutes(),toggleHelp:pe,toggleOverview:()=>D.toggle,togglePause:Ne,toggleAutoSlide:qe,isFirstSlide:ke,isLastSlide:Le,isLastVerticalSlide:Ee,isOverview:()=>D.isActive,isPaused:Pe,isAutoSliding:function(){return!(!V||Y)},isSpeakerNotes:_e,loadSlide:()=>B.load,unloadSlide:()=>B.unload,addEventListeners:ne,removeEventListeners:se,dispatchEvent:de,getState:ot,setState:function(e){if("object"==typeof e){Ie(s(e.indexh),s(e.indexv),s(e.indexf));let t=s(e.paused),a=s(e.overview);"boolean"==typeof t&&t!==Pe()&&Ne(t),"boolean"==typeof a&&a!==D.isActive()&&D.toggle(a)}},getSlidePastCount:Ye,getProgress:Ke,getIndices:Ze,getSlides:Ge,getSlidesAttributes:function(){return Ge().map(e=>{let t={};for(let a=0;aSt({keyCode:e}),registerKeyboardShortcut:(e,t)=>_[e]=t,addEventListener:(e,t,i)=>{a.getRevealElement().addEventListener(e,t,i)},removeEventListener:(e,t,i)=>{a.getRevealElement().removeEventListener(e,t,i)},registerPlugin:(...e)=>T.registerPlugin(...e),hasPlugin:(...e)=>T.hasPlugin(...e),getPlugin:(...e)=>T.getPlugin(...e),getPlugins:()=>T.getRegisteredPlugins(),getComputedSlideSize:be,getPreviousSlide:()=>p,getCurrentSlide:()=>A,getScale:()=>P,getConfig:()=>l,getQueryHash:()=>{let e={};location.search.replace(/[A-Z0-9]+?=([\w\.%-]*)/gi,t=>{e[t.split("=").shift()]=t.split("=").pop()});for(let t in e){let a=e[t];e[t]=s(unescape(a))}return void 0!==e.dependencies&&delete e.dependencies,e},getRevealElement:()=>I.wrapper||document.querySelector(".reveal"),getSlidesElement:()=>I.slides,getBackgroundsElement:()=>I.background,isReady:()=>R,announceStatus:Z,getStatusText:G,slideContent:B,updateControls:Ue,updateProgress:We,updateSlidesVisibility:De,writeURL:Qe,transformSlides:oe,cueAutoSlide:lt,cancelAutoSlide:dt})};window.Reveal=L,window.Reveal.initialize=e=>(window.Reveal=new L(document.querySelector(".reveal"),e),window.Reveal.initialize(),new Promise(e=>window.Reveal.addEventListener("ready",e)))}]); \ No newline at end of file diff --git a/js/controllers/fragments.js b/js/controllers/fragments.js index 915cb17..008e5de 100644 --- a/js/controllers/fragments.js +++ b/js/controllers/fragments.js @@ -1,7 +1,9 @@ import { extend, toArray } from '../utils/util.js' /** - * + * Handles sorting and navigation of slide fragments. + * Fragments are elements within a slide that are + * revealed/animated incrementally. */ export default class Fragments { diff --git a/js/controllers/overview.js b/js/controllers/overview.js new file mode 100644 index 0000000..08a2404 --- /dev/null +++ b/js/controllers/overview.js @@ -0,0 +1,249 @@ +import { SLIDES_SELECTOR } from '../utils/constants.js' +import { extend, toArray, transformElement } from '../utils/util.js' + +/** + * Handles all logic related to the overview mode + * (birds-eye view of all slides). + */ +export default class Overview { + + constructor( Reveal ) { + + this.Reveal = Reveal; + + this.active = false; + + this.onSlideClicked = this.onSlideClicked.bind( this ); + + } + + /** + * Displays the overview of slides (quick nav) by scaling + * down and arranging all slide elements. + */ + activate() { + + // Only proceed if enabled in config + if( this.Reveal.getConfig().overview && !this.isActive() ) { + + this.active = true; + + this.Reveal.getRevealElement().classList.add( 'overview' ); + + // Don't auto-slide while in overview mode + this.Reveal.cancelAutoSlide(); + + // Move the backgrounds element into the slide container to + // that the same scaling is applied + this.Reveal.getSlidesElement().appendChild( this.Reveal.getBackgroundsElement() ); + + // Clicking on an overview slide navigates to it + toArray( this.Reveal.getRevealElement().querySelectorAll( SLIDES_SELECTOR ) ).forEach( slide => { + if( !slide.classList.contains( 'stack' ) ) { + slide.addEventListener( 'click', this.onSlideClicked, true ); + } + } ); + + // Calculate slide sizes + const margin = 70; + const slideSize = this.Reveal.getComputedSlideSize(); + this.overviewSlideWidth = slideSize.width + margin; + this.overviewSlideHeight = slideSize.height + margin; + + // Reverse in RTL mode + if( this.Reveal.getConfig().rtl ) { + this.overviewSlideWidth = -this.overviewSlideWidth; + } + + this.Reveal.updateSlidesVisibility(); + + this.layout(); + this.update(); + + this.Reveal.layout(); + + const indices = this.Reveal.getIndices(); + + // Notify observers of the overview showing + this.Reveal.dispatchEvent( 'overviewshown', { + 'indexh': indices.h, + 'indexv': indices.v, + 'currentSlide': this.Reveal.getCurrentSlide() + } ); + + } + + } + + /** + * Uses CSS transforms to position all slides in a grid for + * display inside of the overview mode. + */ + layout() { + + // Layout slides + this.Reveal.getHorizontalSlides().forEach( ( hslide, h ) => { + hslide.setAttribute( 'data-index-h', h ); + transformElement( hslide, 'translate3d(' + ( h * this.overviewSlideWidth ) + 'px, 0, 0)' ); + + if( hslide.classList.contains( 'stack' ) ) { + + toArray( hslide.querySelectorAll( 'section' ) ).forEach( ( vslide, v ) => { + vslide.setAttribute( 'data-index-h', h ); + vslide.setAttribute( 'data-index-v', v ); + + transformElement( vslide, 'translate3d(0, ' + ( v * this.overviewSlideHeight ) + 'px, 0)' ); + } ); + + } + } ); + + // Layout slide backgrounds + toArray( this.Reveal.getBackgroundsElement().childNodes ).forEach( ( hbackground, h ) => { + transformElement( hbackground, 'translate3d(' + ( h * this.overviewSlideWidth ) + 'px, 0, 0)' ); + + toArray( hbackground.querySelectorAll( '.slide-background' ) ).forEach( ( vbackground, v ) => { + transformElement( vbackground, 'translate3d(0, ' + ( v * this.overviewSlideHeight ) + 'px, 0)' ); + } ); + } ); + + } + + /** + * Moves the overview viewport to the current slides. + * Called each time the current slide changes. + */ + update() { + + const vmin = Math.min( window.innerWidth, window.innerHeight ); + const scale = Math.max( vmin / 5, 150 ) / vmin; + const indices = this.Reveal.getIndices(); + + this.Reveal.transformSlides( { + overview: [ + 'scale('+ scale +')', + 'translateX('+ ( -indices.h * this.overviewSlideWidth ) +'px)', + 'translateY('+ ( -indices.v * this.overviewSlideHeight ) +'px)' + ].join( ' ' ) + } ); + + } + + /** + * Exits the slide overview and enters the currently + * active slide. + */ + deactivate() { + + // Only proceed if enabled in config + if( this.Reveal.getConfig().overview ) { + + this.active = false; + + this.Reveal.getRevealElement().classList.remove( 'overview' ); + + // Temporarily add a class so that transitions can do different things + // depending on whether they are exiting/entering overview, or just + // moving from slide to slide + this.Reveal.getRevealElement().classList.add( 'overview-deactivating' ); + + setTimeout( () => { + this.Reveal.getRevealElement().classList.remove( 'overview-deactivating' ); + }, 1 ); + + // Move the background element back out + this.Reveal.getRevealElement().appendChild( this.Reveal.getBackgroundsElement() ); + + // Clean up changes made to slides + toArray( this.Reveal.getRevealElement().querySelectorAll( SLIDES_SELECTOR ) ).forEach( slide => { + transformElement( slide, '' ); + + slide.removeEventListener( 'click', this.onSlideClicked, true ); + } ); + + // Clean up changes made to backgrounds + toArray( this.Reveal.getBackgroundsElement().querySelectorAll( '.slide-background' ) ).forEach( background => { + transformElement( background, '' ); + } ); + + this.Reveal.transformSlides( { overview: '' } ); + + const indices = this.Reveal.getIndices(); + + this.Reveal.slide( indices.h, indices.v ); + this.Reveal.layout(); + this.Reveal.cueAutoSlide(); + + // Notify observers of the overview hiding + this.Reveal.dispatchEvent( 'overviewhidden', { + 'indexh': indices.h, + 'indexv': indices.v, + 'currentSlide': this.Reveal.getCurrentSlide() + } ); + + } + } + + /** + * Toggles the slide overview mode on and off. + * + * @param {Boolean} [override] Flag which overrides the + * toggle logic and forcibly sets the desired state. True means + * overview is open, false means it's closed. + */ + toggle( override ) { + + if( typeof override === 'boolean' ) { + override ? this.activate() : this.deactivate(); + } + else { + this.isActive() ? this.deactivate() : this.activate(); + } + + } + + /** + * Checks if the overview is currently active. + * + * @return {Boolean} true if the overview is active, + * false otherwise + */ + isActive() { + + return this.active; + + } + + /** + * Invoked when a slide is and we're in the overview. + * + * @param {object} event + */ + onSlideClicked( event ) { + + if( this.isActive() ) { + event.preventDefault(); + + let element = event.target; + + while( element && !element.nodeName.match( /section/gi ) ) { + element = element.parentNode; + } + + if( element && !element.classList.contains( 'disabled' ) ) { + + this.deactivate(); + + if( element.nodeName.match( /section/gi ) ) { + let h = parseInt( element.getAttribute( 'data-index-h' ), 10 ), + v = parseInt( element.getAttribute( 'data-index-v' ), 10 ); + + this.Reveal.slide( h, v ); + } + + } + } + + } + +} \ No newline at end of file diff --git a/js/reveal.js b/js/reveal.js index ccf5687..eb04c98 100644 --- a/js/reveal.js +++ b/js/reveal.js @@ -1,6 +1,7 @@ import SlideContent from './controllers/slidecontent.js' import AutoAnimate from './controllers/autoanimate.js' import Fragments from './controllers/fragments.js' +import Overview from './controllers/overview.js' import Plugins from './controllers/plugins.js' import Playback from './components/playback.js' import defaultConfig from './config.js' @@ -37,21 +38,12 @@ export default function( revealElement, options ) { // The reveal.js version const VERSION = '4.0.0-dev'; - const UA = navigator.userAgent; - // Configuration defaults, can be overridden at initialization time let config, // Flags if reveal.js is loaded (has dispatched the 'ready' event) ready = false, - // Flags if the overview mode is currently active - overview = false, - - // Holds the dimensions of our overview slides, including margins - overviewSlideWidth = null, - overviewSlideHeight = null, - // The horizontal and vertical index of the currently active slide indexh, indexv, @@ -93,6 +85,8 @@ export default function( revealElement, options ) { // Controls navigation between slide fragments fragments = new Fragments( Reveal ), + overview = new Overview( Reveal ), + // List of asynchronously loaded reveal.js dependencies asyncDependencies = [], @@ -1489,8 +1483,8 @@ export default function( revealElement, options ) { updateProgress(); updateParallax(); - if( isOverview() ) { - updateOverview(); + if( overview.isActive() ) { + overview.update(); } } @@ -1606,199 +1600,6 @@ export default function( revealElement, options ) { } - /** - * Displays the overview of slides (quick nav) by scaling - * down and arranging all slide elements. - */ - function activateOverview() { - - // Only proceed if enabled in config - if( config.overview && !isOverview() ) { - - overview = true; - - dom.wrapper.classList.add( 'overview' ); - - // Don't auto-slide while in overview mode - cancelAutoSlide(); - - // Move the backgrounds element into the slide container to - // that the same scaling is applied - dom.slides.appendChild( dom.background ); - - // Clicking on an overview slide navigates to it - toArray( dom.wrapper.querySelectorAll( SLIDES_SELECTOR ) ).forEach( slide => { - if( !slide.classList.contains( 'stack' ) ) { - slide.addEventListener( 'click', onOverviewSlideClicked, true ); - } - } ); - - // Calculate slide sizes - const margin = 70; - const slideSize = getComputedSlideSize(); - overviewSlideWidth = slideSize.width + margin; - overviewSlideHeight = slideSize.height + margin; - - // Reverse in RTL mode - if( config.rtl ) { - overviewSlideWidth = -overviewSlideWidth; - } - - updateSlidesVisibility(); - layoutOverview(); - updateOverview(); - - layout(); - - // Notify observers of the overview showing - dispatchEvent( 'overviewshown', { - 'indexh': indexh, - 'indexv': indexv, - 'currentSlide': currentSlide - } ); - - } - - } - - /** - * Uses CSS transforms to position all slides in a grid for - * display inside of the overview mode. - */ - function layoutOverview() { - - // Layout slides - toArray( dom.wrapper.querySelectorAll( HORIZONTAL_SLIDES_SELECTOR ) ).forEach( ( hslide, h ) => { - hslide.setAttribute( 'data-index-h', h ); - transformElement( hslide, 'translate3d(' + ( h * overviewSlideWidth ) + 'px, 0, 0)' ); - - if( hslide.classList.contains( 'stack' ) ) { - - toArray( hslide.querySelectorAll( 'section' ) ).forEach( ( vslide, v ) => { - vslide.setAttribute( 'data-index-h', h ); - vslide.setAttribute( 'data-index-v', v ); - - transformElement( vslide, 'translate3d(0, ' + ( v * overviewSlideHeight ) + 'px, 0)' ); - } ); - - } - } ); - - // Layout slide backgrounds - toArray( dom.background.childNodes ).forEach( ( hbackground, h ) => { - transformElement( hbackground, 'translate3d(' + ( h * overviewSlideWidth ) + 'px, 0, 0)' ); - - toArray( hbackground.querySelectorAll( '.slide-background' ) ).forEach( ( vbackground, v ) => { - transformElement( vbackground, 'translate3d(0, ' + ( v * overviewSlideHeight ) + 'px, 0)' ); - } ); - } ); - - } - - /** - * Moves the overview viewport to the current slides. - * Called each time the current slide changes. - */ - function updateOverview() { - - const vmin = Math.min( window.innerWidth, window.innerHeight ); - const scale = Math.max( vmin / 5, 150 ) / vmin; - - transformSlides( { - overview: [ - 'scale('+ scale +')', - 'translateX('+ ( -indexh * overviewSlideWidth ) +'px)', - 'translateY('+ ( -indexv * overviewSlideHeight ) +'px)' - ].join( ' ' ) - } ); - - } - - /** - * Exits the slide overview and enters the currently - * active slide. - */ - function deactivateOverview() { - - // Only proceed if enabled in config - if( config.overview ) { - - overview = false; - - dom.wrapper.classList.remove( 'overview' ); - - // Temporarily add a class so that transitions can do different things - // depending on whether they are exiting/entering overview, or just - // moving from slide to slide - dom.wrapper.classList.add( 'overview-deactivating' ); - - setTimeout( () => { - dom.wrapper.classList.remove( 'overview-deactivating' ); - }, 1 ); - - // Move the background element back out - dom.wrapper.appendChild( dom.background ); - - // Clean up changes made to slides - toArray( dom.wrapper.querySelectorAll( SLIDES_SELECTOR ) ).forEach( slide => { - transformElement( slide, '' ); - - slide.removeEventListener( 'click', onOverviewSlideClicked, true ); - } ); - - // Clean up changes made to backgrounds - toArray( dom.background.querySelectorAll( '.slide-background' ) ).forEach( background => { - transformElement( background, '' ); - } ); - - transformSlides( { overview: '' } ); - - slide( indexh, indexv ); - - layout(); - - cueAutoSlide(); - - // Notify observers of the overview hiding - dispatchEvent( 'overviewhidden', { - 'indexh': indexh, - 'indexv': indexv, - 'currentSlide': currentSlide - } ); - - } - } - - /** - * Toggles the slide overview mode on and off. - * - * @param {Boolean} [override] Flag which overrides the - * toggle logic and forcibly sets the desired state. True means - * overview is open, false means it's closed. - */ - function toggleOverview( override ) { - - if( typeof override === 'boolean' ) { - override ? activateOverview() : deactivateOverview(); - } - else { - isOverview() ? deactivateOverview() : activateOverview(); - } - - } - - /** - * Checks if the overview is currently active. - * - * @return {Boolean} true if the overview is active, - * false otherwise - */ - function isOverview() { - - return overview; - - } - /** * Return a hash URL that will resolve to the given slide location. * @@ -1851,6 +1652,55 @@ export default function( revealElement, options ) { } + /** + * Returns true if we're on the last slide in the current + * vertical stack. + */ + function isLastVerticalSlide() { + + if( currentSlide && isVerticalSlide( currentSlide ) ) { + // Does this slide have a next sibling? + if( currentSlide.nextElementSibling ) return false; + + return true; + } + + return false; + + } + + /** + * Returns true if we're currently on the first slide in + * the presentation. + */ + function isFirstSlide() { + + return indexh === 0 && indexv === 0; + + } + + /** + * Returns true if we're currently on the last slide in + * the presenation. If the last slide is a stack, we only + * consider this the last slide if it's at the end of the + * stack. + */ + function isLastSlide() { + + if( currentSlide ) { + // Does this slide have a next sibling? + if( currentSlide.nextElementSibling ) return false; + + // If it's vertical, does its parent have a next sibling? + if( isVerticalSlide( currentSlide ) && currentSlide.parentNode.nextElementSibling ) return false; + + return true; + } + + return false; + + } + /** * Shows the mouse pointer after it has been hidden with * #hideCursor. @@ -1991,7 +1841,7 @@ export default function( revealElement, options ) { // If no vertical index is specified and the upcoming slide is a // stack, resume at its previous vertical index - if( v === undefined && !isOverview() ) { + if( v === undefined && !overview.isActive() ) { v = getPreviousVerticalIndex( horizontalSlides[ h ] ); } @@ -2020,8 +1870,8 @@ export default function( revealElement, options ) { layout(); // Update the overview if it's currently active - if( isOverview() ) { - updateOverview(); + if( overview.isActive() ) { + overview.update(); } // Find the current horizontal slide and any possible vertical slides @@ -2052,7 +1902,7 @@ export default function( revealElement, options ) { previousSlide.setAttribute( 'aria-hidden', 'true' ); // Reset all slides upon navigate to home - if( Reveal.isFirstSlide() ) { + if( isFirstSlide() ) { // Launch async task setTimeout( () => { getVerticalStacks().forEach( slide => { @@ -2118,7 +1968,7 @@ export default function( revealElement, options ) { cueAutoSlide(); // Auto-animation - if( slideChanged && previousSlide && currentSlide && !isOverview() ) { + if( slideChanged && previousSlide && currentSlide && !overview.isActive() ) { // Skip the slide transition between our two slides // when auto-animating individual elements @@ -2185,8 +2035,8 @@ export default function( revealElement, options ) { slideContent.startEmbeddedContent( currentSlide ); } - if( isOverview() ) { - layoutOverview(); + if( overview.isActive() ) { + overview.layout(); } } @@ -2388,12 +2238,12 @@ export default function( revealElement, options ) { // The number of steps away from the present slide that will // be visible - let viewDistance = isOverview() ? 10 : config.viewDistance; + let viewDistance = overview.isActive() ? 10 : config.viewDistance; // Shorten the view distance on devices that typically have // less resources if( isMobile ) { - viewDistance = isOverview() ? 6 : config.mobileViewDistance; + viewDistance = overview.isActive() ? 6 : config.mobileViewDistance; } // All slides need to be visible when exporting to PDF @@ -3313,7 +3163,7 @@ export default function( revealElement, options ) { indexv: indices.v, indexf: indices.f, paused: isPaused(), - overview: isOverview() + overview: overview.isActive() }; } @@ -3336,8 +3186,8 @@ export default function( revealElement, options ) { togglePause( pausedFlag ); } - if( typeof overviewFlag === 'boolean' && overviewFlag !== isOverview() ) { - toggleOverview( overviewFlag ); + if( typeof overviewFlag === 'boolean' && overviewFlag !== overview.isActive() ) { + overview.toggle( overviewFlag ); } } @@ -3401,7 +3251,7 @@ export default function( revealElement, options ) { // - The presentation isn't paused // - The overview isn't active // - The presentation isn't over - if( autoSlide && !autoSlidePaused && !isPaused() && !isOverview() && ( !Reveal.isLastSlide() || fragments.availableRoutes().next || config.loop === true ) ) { + if( autoSlide && !autoSlidePaused && !isPaused() && !overview.isActive() && ( !isLastSlide() || fragments.availableRoutes().next || config.loop === true ) ) { autoSlideTimeout = setTimeout( () => { if( typeof config.autoSlideMethod === 'function' ) { config.autoSlideMethod() @@ -3462,12 +3312,12 @@ export default function( revealElement, options ) { // Reverse for RTL if( config.rtl ) { - if( ( isOverview() || fragments.next() === false ) && availableRoutes().left ) { + if( ( overview.isActive() || fragments.next() === false ) && availableRoutes().left ) { slide( indexh + 1, config.navigationMode === 'grid' ? indexv : undefined ); } } // Normal navigation - else if( ( isOverview() || fragments.prev() === false ) && availableRoutes().left ) { + else if( ( overview.isActive() || fragments.prev() === false ) && availableRoutes().left ) { slide( indexh - 1, config.navigationMode === 'grid' ? indexv : undefined ); } @@ -3479,12 +3329,12 @@ export default function( revealElement, options ) { // Reverse for RTL if( config.rtl ) { - if( ( isOverview() || fragments.prev() === false ) && availableRoutes().right ) { + if( ( overview.isActive() || fragments.prev() === false ) && availableRoutes().right ) { slide( indexh - 1, config.navigationMode === 'grid' ? indexv : undefined ); } } // Normal navigation - else if( ( isOverview() || fragments.next() === false ) && availableRoutes().right ) { + else if( ( overview.isActive() || fragments.next() === false ) && availableRoutes().right ) { slide( indexh + 1, config.navigationMode === 'grid' ? indexv : undefined ); } @@ -3493,7 +3343,7 @@ export default function( revealElement, options ) { function navigateUp() { // Prioritize hiding fragments - if( ( isOverview() || fragments.prev() === false ) && availableRoutes().up ) { + if( ( overview.isActive() || fragments.prev() === false ) && availableRoutes().up ) { slide( indexh, indexv - 1 ); } @@ -3504,7 +3354,7 @@ export default function( revealElement, options ) { hasNavigatedVertically = true; // Prioritize revealing fragments - if( ( isOverview() || fragments.next() === false ) && availableRoutes().down ) { + if( ( overview.isActive() || fragments.next() === false ) && availableRoutes().down ) { slide( indexh, indexv + 1 ); } @@ -3560,7 +3410,7 @@ export default function( revealElement, options ) { // When looping is enabled `routes.down` is always available // so we need a separate check for when we've reached the // end of a stack and should move horizontally - if( routes.down && routes.right && config.loop && Reveal.isLastVerticalSlide( currentSlide ) ) { + if( routes.down && routes.right && config.loop && isLastVerticalSlide( currentSlide ) ) { routes.down = false; } @@ -3773,7 +3623,7 @@ export default function( revealElement, options ) { if( firstSlideShortcut ) { slide( 0 ); } - else if( !isOverview() && useLinearMode ) { + else if( !overview.isActive() && useLinearMode ) { navigatePrev(); } else { @@ -3785,7 +3635,7 @@ export default function( revealElement, options ) { if( lastSlideShortcut ) { slide( Number.MAX_VALUE ); } - else if( !isOverview() && useLinearMode ) { + else if( !overview.isActive() && useLinearMode ) { navigateNext(); } else { @@ -3794,7 +3644,7 @@ export default function( revealElement, options ) { } // K, UP else if( keyCode === 75 || keyCode === 38 ) { - if( !isOverview() && useLinearMode ) { + if( !overview.isActive() && useLinearMode ) { navigatePrev(); } else { @@ -3803,7 +3653,7 @@ export default function( revealElement, options ) { } // J, DOWN else if( keyCode === 74 || keyCode === 40 ) { - if( !isOverview() && useLinearMode ) { + if( !overview.isActive() && useLinearMode ) { navigateNext(); } else { @@ -3820,8 +3670,8 @@ export default function( revealElement, options ) { } // SPACE else if( keyCode === 32 ) { - if( isOverview() ) { - deactivateOverview(); + if( overview.isActive() ) { + overview.deactivate(); } if( event.shiftKey ) { navigatePrev(); @@ -3861,7 +3711,7 @@ export default function( revealElement, options ) { closeOverlay(); } else { - toggleOverview(); + overview.toggle(); } event.preventDefault && event.preventDefault(); @@ -4134,40 +3984,6 @@ export default function( revealElement, options ) { } - /** - * Invoked when a slide is and we're in the overview. - * - * @param {object} event - */ - function onOverviewSlideClicked( event ) { - - // TODO There's a bug here where the event listeners are not - // removed after deactivating the overview. - if( eventsAreBound && isOverview() ) { - event.preventDefault(); - - let element = event.target; - - while( element && !element.nodeName.match( /section/gi ) ) { - element = element.parentNode; - } - - if( element && !element.classList.contains( 'disabled' ) ) { - - deactivateOverview(); - - if( element.nodeName.match( /section/gi ) ) { - let h = parseInt( element.getAttribute( 'data-index-h' ), 10 ), - v = parseInt( element.getAttribute( 'data-index-v' ), 10 ); - - slide( h, v ); - } - - } - } - - } - /** * Handles clicks on links that are set to preview in the * iframe overlay. @@ -4194,7 +4010,7 @@ export default function( revealElement, options ) { function onAutoSlidePlayerClick( event ) { // Replay - if( Reveal.isLastSlide() && config.loop === false ) { + if( isLastSlide() && config.loop === false ) { slide( 0, 0 ); resumeAutoSlide(); } @@ -4264,7 +4080,7 @@ export default function( revealElement, options ) { toggleHelp, // Toggles the overview mode on/off - toggleOverview, + toggleOverview: () => overview.toggle, // Toggles the "black screen" mode on/off togglePause, @@ -4272,8 +4088,13 @@ export default function( revealElement, options ) { // Toggles the auto slide mode on/off toggleAutoSlide, + // Slide navigation checks + isFirstSlide, + isLastSlide, + isLastVerticalSlide, + // State checks - isOverview, + isOverview: () => overview.isActive, isPaused, isAutoSliding, isSpeakerNotes, @@ -4393,52 +4214,27 @@ export default function( revealElement, options ) { // Returns the top-level DOM element getRevealElement: () => dom.wrapper || document.querySelector( '.reveal' ), getSlidesElement: () => dom.slides, - - // Returns true if we're currently on the first slide - isFirstSlide: () => indexh === 0 && indexv === 0, - - // Returns true if we're currently on the last slide - isLastSlide: () => { - if( currentSlide ) { - // Does this slide have a next sibling? - if( currentSlide.nextElementSibling ) return false; - - // If it's vertical, does its parent have a next sibling? - if( isVerticalSlide( currentSlide ) && currentSlide.parentNode.nextElementSibling ) return false; - - return true; - } - - return false; - }, - - // Returns true if we're on the last slide in the current - // vertical stack - isLastVerticalSlide: () => { - if( currentSlide && isVerticalSlide( currentSlide ) ) { - // Does this slide have a next sibling? - if( currentSlide.nextElementSibling ) return false; - - return true; - } - - return false; - }, + getBackgroundsElement: () => dom.background, // Checks if reveal.js has been loaded and is ready for use isReady: () => ready, + // The following API methods are primarily intended for use + // by reveal.js controllers + // Methods for announcing content to screen readers announceStatus, getStatusText, - // Expose direct access to controllers via the API slideContent, - updateControls, updateProgress, - writeURL + updateSlidesVisibility, + writeURL, + transformSlides, + cueAutoSlide, + cancelAutoSlide } );