diff --git a/css/reveal.css b/css/reveal.css index 2688acc0..e7c6b1c1 100644 --- a/css/reveal.css +++ b/css/reveal.css @@ -934,11 +934,8 @@ body { /********************************************* * AUTO ANIMATE *********************************************/ -.reveal section[data-auto-animate] { - transition: none; } - .reveal section[data-auto-animate] .auto-animate-target { - transition: all 0.7s ease; + transition-property: all; -webkit-transform-origin: top left; transform-origin: top left; } diff --git a/css/reveal.scss b/css/reveal.scss index 81cc8a37..7dcec07e 100644 --- a/css/reveal.scss +++ b/css/reveal.scss @@ -994,12 +994,8 @@ $controlsArrowAngleActive: 36deg; * AUTO ANIMATE *********************************************/ -.reveal section[data-auto-animate] { - transition: none; -} - .reveal section[data-auto-animate] .auto-animate-target { - transition: all 0.7s ease; + transition-property: all; transform-origin: top left; } diff --git a/js/reveal.js b/js/reveal.js index 958ebae2..04b8ff5f 100644 --- a/js/reveal.js +++ b/js/reveal.js @@ -190,11 +190,19 @@ // Can be used to globally disable auto-animation autoAnimate: true, + // Default settings for or auto-animate transitions, can be + // overridden per-slide via data arguments + autoAnimateEasing: 'ease', + autoAnimateDuration: 0.7, + // CSS styles that auto-animations will animate between autoAnimateStyles: [ 'opacity', 'color', 'backgroundColor', + 'font-size', + 'line-height', + 'letter-spacing', 'border-top-left-radius', 'border-top-right-radius', 'border-bottom-left-radius', @@ -3018,8 +3026,24 @@ cueAutoSlide(); + // Auto-animation if( slideChanged && previousSlide && currentSlide ) { + + // Skip the slide transition between our two slides + // when auto-animating individual elements + if( previousSlide.hasAttribute( 'data-auto-animate' ) && currentSlide.hasAttribute( 'data-auto-animate' ) ) { + previousSlide.style.transition = 'none'; + currentSlide.style.transition = 'none'; + + setTimeout( function() { + previousSlide.style.transition = ''; + currentSlide.style.transition = ''; + }, 0 ); + } + + // Run the auto-animation between our slides autoAnimate( previousSlide, currentSlide ); + } } @@ -3789,10 +3813,28 @@ if( config.autoAnimate ) { + var options = { + easing: config.autoAnimateEasing, + duration: config.autoAnimateDuration, + offsetY: 0 + }; + // If our slides are centered vertically, we need to // account for their difference in position when // calculating deltas for animated elements - var offsetY = config.center ? fromSlide.offsetTop - toSlide.offsetTop : 0; + if( config.center ) { + options.offsetY = fromSlide.offsetTop - toSlide.offsetTop; + } + + // Check if easing is overriden + if( toSlide.hasAttribute( 'data-auto-animate-easing' ) ) { + options.easing = toSlide.getAttribute( 'data-auto-animate-easing' ); + } + + // Check if the duration is overriden + if( toSlide.hasAttribute( 'data-auto-animate-duration' ) ) { + options.duration = parseFloat( toSlide.getAttribute( 'data-auto-animate-duration' ) ); + } var fromTargets = {}; @@ -3803,7 +3845,7 @@ toArray( toSlide.querySelectorAll( '[data-id]' ) ).forEach( function( toElement ) { var fromElement = fromTargets[ toElement.getAttribute( 'data-id' ) ]; if( fromElement ) { - autoAnimateElement( fromElement, toElement, offsetY ); + autoAnimateElement( fromElement, toElement, options ); } } ); @@ -3815,25 +3857,22 @@ * Auto-animates the properties of an element from their original * values to their new state. * - * @param {HTMLElement} from - * @param {HTMLElement} to + * @param {HTMLElement} from + * @param {HTMLElement} to + * @param {Object} options */ - function autoAnimateElement( from, to, offsetY ) { + function autoAnimateElement( from, to, options ) { var fromProps = getAutoAnimatableProperties( from ), toProps = getAutoAnimatableProperties( to ); var delta = { x: fromProps.x - toProps.x, - y: fromProps.y - toProps.y, + y: fromProps.y - toProps.y + options.offsetY, scaleX: fromProps.width / toProps.width, scaleY: fromProps.height / toProps.height }; - // Correction applied to account for varying vertical - // positions in decks with vertical centering - if( typeof offsetY === 'number' ) delta.y += offsetY; - to.style.transition = 'none'; to.style.transform = 'translate('+delta.x+'px, '+delta.y+'px) scale('+delta.scaleX+','+delta.scaleY+')'; to.classList.add( 'auto-animate-target' ); @@ -3846,6 +3885,8 @@ // Run the FLIP animation to.style.transition = ''; + to.style.transitionTimingFunction = options.easing; + to.style.transitionDuration = options.duration + 's'; to.style.transform = ''; config.autoAnimateStyles.forEach( function( propertyName ) { @@ -3883,11 +3924,20 @@ // Cache the list of properties element._animatableProperties = properties; - // Provide a method for rolling back this element to its - // pre auto-animated state. + // Provide a method for rolling back all changes made to this + // element as part of auto-animating it autoAnimatedRollbacks.push( function( originalStyleAttribute ) { - element.setAttribute( 'style', originalStyleAttribute ); element.classList.remove( 'auto-animate-target' ); + element.style.transitionTimingFunction = ''; + element.style.transitionDuration = ''; + + if( typeof originalStyleAttribute === 'string' ) { + element.setAttribute( 'style', originalStyleAttribute ); + } + else { + element.removeAttribute( 'style' ); + } + delete element._animatableProperties; }.bind( null, element.getAttribute( 'style' ) ) ); diff --git a/test/examples/auto-animate.html b/test/examples/auto-animate.html index 646f5626..3ae23c73 100644 --- a/test/examples/auto-animate.html +++ b/test/examples/auto-animate.html @@ -19,10 +19,17 @@