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e=this.Reveal.getConfig().rtl,t=this.Reveal.getRevealElement();this.element=document.createElement("aside"),this.element.className="controls",this.element.innerHTML=`\n\t\t\t\n\t\t\t\n\t\t\t`,this.Reveal.getRevealElement().appendChild(this.element),this.controlsLeft=n(t,".navigate-left"),this.controlsRight=n(t,".navigate-right"),this.controlsUp=n(t,".navigate-up"),this.controlsDown=n(t,".navigate-down"),this.controlsPrev=n(t,".navigate-prev"),this.controlsNext=n(t,".navigate-next"),this.controlsRightArrow=this.element.querySelector(".navigate-right"),this.controlsLeftArrow=this.element.querySelector(".navigate-left"),this.controlsDownArrow=this.element.querySelector(".navigate-down")}configure(e,t){this.element.style.display=e.controls?"block":"none",this.element.setAttribute("data-controls-layout",e.controlsLayout),this.element.setAttribute("data-controls-back-arrows",e.controlsBackArrows)}bind(){let 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t=this.Reveal.getScale();return{x:Math.round(e.offsetLeft*t*100)/100,y:Math.round(e.offsetTop*t*100)/100,width:Math.round(e.offsetWidth*t*100)/100,height:Math.round(e.offsetHeight*t*100)/100}}findAutoAnimateMatches(e,t,i,a,s,n){let r={},o={};[].slice.call(t.querySelectorAll(a)).forEach((e,t)=>{const i=s(e);"string"==typeof i&&i.length&&(r[i]=r[i]||[],r[i].push(e))}),[].slice.call(i.querySelectorAll(a)).forEach((t,i)=>{const a=s(t);let l;if(o[a]=o[a]||[],o[a].push(t),r[a]){const e=o[a].length-1,t=r[a].length-1;r[a][e]?(l=r[a][e],r[a][e]=null):r[a][t]&&(l=r[a][t],r[a][t]=null)}l&&e.push({from:l,to:t,options:n})})}getUnmatchedAutoAnimateElements(e){return[].slice.call(e.children).reduce((e,t)=>{const i=t.querySelector("[data-auto-animate-target]");return t.hasAttribute("data-auto-animate-target")||i||e.push(t),t.querySelector("[data-auto-animate-target]")&&(e=e.concat(this.getUnmatchedAutoAnimateElements(t))),e},[])}}class R{constructor(e){this.Reveal=e}configure(e,t){!1===e.fragments?this.disable():!1===t.fragments&&this.enable()}disable(){n(this.Reveal.getSlidesElement(),".fragment").forEach(e=>{e.classList.add("visible"),e.classList.remove("current-fragment")})}enable(){n(this.Reveal.getSlidesElement(),".fragment").forEach(e=>{e.classList.remove("visible"),e.classList.remove("current-fragment")})}availableRoutes(){let e=this.Reveal.getCurrentSlide();if(e&&this.Reveal.getConfig().fragments){let t=e.querySelectorAll(".fragment:not(.disabled)"),i=e.querySelectorAll(".fragment:not(.disabled):not(.visible)");return{prev:t.length-i.length>0,next:!!i.length}}return{prev:!1,next:!1}}sort(e,t=!1){e=Array.from(e);let i=[],a=[],s=[];e.forEach(e=>{if(e.hasAttribute("data-fragment-index")){let t=parseInt(e.getAttribute("data-fragment-index"),10);i[t]||(i[t]=[]),i[t].push(e)}else a.push([e])}),i=i.concat(a);let n=0;return 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'forward' : 'backward'; + // Inject our auto-animate styles for this transition let css = this.getAutoAnimatableElements( fromSlide, toSlide ).map( elements => { - return this.getAutoAnimateCSS( elements.from, elements.to, elements.options || {}, animationOptions, this.autoAnimateCounter++ ); + return this.autoAnimateElements( elements.from, elements.to, elements.options || {}, animationOptions, this.autoAnimateCounter++ ); } ); // Animate unmatched elements, if enabled @@ -124,8 +128,9 @@ export default class AutoAnimate { } /** - * Auto-animates the properties of an element from their original - * values to their new state. + * Creates a FLIP animation where the `to` element starts out + * in the `from` element position and animates to its original + * state. * * @param {HTMLElement} from * @param {HTMLElement} to @@ -134,7 +139,7 @@ export default class AutoAnimate { * @param {String} id Unique ID that we can use to identify this * auto-animate element in the DOM */ - getAutoAnimateCSS( from, to, elementOptions, animationOptions, id ) { + autoAnimateElements( from, to, elementOptions, animationOptions, id ) { // 'from' elements are given a data-auto-animate-target with no value, // 'to' elements are are given a data-auto-animate-target with an ID @@ -154,6 +159,21 @@ export default class AutoAnimate { let fromProps = this.getAutoAnimatableProperties( 'from', from, elementOptions ), toProps = this.getAutoAnimatableProperties( 'to', to, elementOptions ); + // Maintain fragment visibility for matching elements when + // we're navigating forwards, this way the viewer won't need + // to step through the same fragments twice + if( to.classList.contains( 'fragment' ) ) { + + // Don't auto-animate the opacity of fragments to avoid + // conflicts with fragment animations + delete toProps.styles['opacity']; + + if( from.classList.contains( 'fragment' ) && animationOptions.slideDirection === 'forward' ) { + to.classList.add( 'visible', 'disabled' ); + } + + } + // If translation and/or scaling are enabled, css transform // the 'to' element so that it matches the position and size // of the 'from' element diff --git a/js/controllers/fragments.js b/js/controllers/fragments.js index 3b0abc73..ca83fd62 100644 --- a/js/controllers/fragments.js +++ b/js/controllers/fragments.js @@ -63,8 +63,8 @@ export default class Fragments { let currentSlide = this.Reveal.getCurrentSlide(); if( currentSlide && this.Reveal.getConfig().fragments ) { - let fragments = currentSlide.querySelectorAll( '.fragment' ); - let hiddenFragments = currentSlide.querySelectorAll( '.fragment:not(.visible)' ); + let fragments = currentSlide.querySelectorAll( '.fragment:not(.disabled)' ); + let hiddenFragments = currentSlide.querySelectorAll( '.fragment:not(.disabled):not(.visible)' ); return { prev: fragments.length - hiddenFragments.length > 0, @@ -291,12 +291,12 @@ export default class Fragments { let currentSlide = this.Reveal.getCurrentSlide(); if( currentSlide && this.Reveal.getConfig().fragments ) { - let fragments = this.sort( currentSlide.querySelectorAll( '.fragment' ) ); + let fragments = this.sort( currentSlide.querySelectorAll( '.fragment:not(.disabled)' ) ); if( fragments.length ) { // If no index is specified, find the current if( typeof index !== 'number' ) { - let lastVisibleFragment = this.sort( currentSlide.querySelectorAll( '.fragment.visible' ) ).pop(); + let lastVisibleFragment = this.sort( currentSlide.querySelectorAll( '.fragment:not(.disabled).visible' ) ).pop(); if( lastVisibleFragment ) { index = parseInt( lastVisibleFragment.getAttribute( 'data-fragment-index' ) || 0, 10 ); diff --git a/test/test-auto-animate.html b/test/test-auto-animate.html index d3d9b4f5..0b4ae855 100644 --- a/test/test-auto-animate.html +++ b/test/test-auto-animate.html @@ -42,6 +42,22 @@

Non-auto-animate slide

+
+

h1

+

h2

+

h3

+
+ +
+

h1

+

h2

+

h3

+
+ +
+

Non-auto-animate slide

+
+ @@ -119,6 +135,21 @@ Reveal.configure({ autoAnimate: true }); }); + QUnit.test( 'Carries forward matching fragment visibility', assert => { + Reveal.slide(4); + assert.ok( !slides[5].h1.classList.contains( 'visible' ) ) + Reveal.next(); + Reveal.next(); + Reveal.next(); + assert.ok( slides[5].h1.classList.contains( 'visible' ) ) + assert.ok( slides[5].h2.classList.contains( 'visible' ) ) + assert.ok( !slides[5].h3.classList.contains( 'visible' ) ) + Reveal.next(); + assert.ok( slides[5].h3.classList.contains( 'visible' ) ) + Reveal.next(); + assert.ok( slides[6].slide === Reveal.getCurrentSlide() ) + }); + } );