easing option for auto-animate
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@ -934,11 +934,8 @@ body {
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/*********************************************
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* AUTO ANIMATE
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*********************************************/
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.reveal section[data-auto-animate] {
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transition: none; }
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.reveal section[data-auto-animate] .auto-animate-target {
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transition: all 0.7s ease;
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transition-property: all;
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-webkit-transform-origin: top left;
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transform-origin: top left; }
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@ -994,12 +994,8 @@ $controlsArrowAngleActive: 36deg;
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* AUTO ANIMATE
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*********************************************/
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.reveal section[data-auto-animate] {
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transition: none;
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}
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.reveal section[data-auto-animate] .auto-animate-target {
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transition: all 0.7s ease;
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transition-property: all;
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transform-origin: top left;
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}
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76
js/reveal.js
76
js/reveal.js
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@ -190,11 +190,19 @@
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// Can be used to globally disable auto-animation
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autoAnimate: true,
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// Default settings for or auto-animate transitions, can be
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// overridden per-slide via data arguments
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autoAnimateEasing: 'ease',
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autoAnimateDuration: 0.7,
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// CSS styles that auto-animations will animate between
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autoAnimateStyles: [
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'opacity',
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'color',
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'backgroundColor',
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'font-size',
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'line-height',
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'letter-spacing',
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'border-top-left-radius',
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'border-top-right-radius',
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'border-bottom-left-radius',
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@ -3018,8 +3026,24 @@
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cueAutoSlide();
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// Auto-animation
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if( slideChanged && previousSlide && currentSlide ) {
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// Skip the slide transition between our two slides
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// when auto-animating individual elements
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if( previousSlide.hasAttribute( 'data-auto-animate' ) && currentSlide.hasAttribute( 'data-auto-animate' ) ) {
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previousSlide.style.transition = 'none';
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currentSlide.style.transition = 'none';
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setTimeout( function() {
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previousSlide.style.transition = '';
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currentSlide.style.transition = '';
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}, 0 );
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}
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// Run the auto-animation between our slides
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autoAnimate( previousSlide, currentSlide );
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}
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}
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@ -3789,10 +3813,28 @@
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if( config.autoAnimate ) {
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var options = {
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easing: config.autoAnimateEasing,
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duration: config.autoAnimateDuration,
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offsetY: 0
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};
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// If our slides are centered vertically, we need to
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// account for their difference in position when
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// calculating deltas for animated elements
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var offsetY = config.center ? fromSlide.offsetTop - toSlide.offsetTop : 0;
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if( config.center ) {
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options.offsetY = fromSlide.offsetTop - toSlide.offsetTop;
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}
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// Check if easing is overriden
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if( toSlide.hasAttribute( 'data-auto-animate-easing' ) ) {
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options.easing = toSlide.getAttribute( 'data-auto-animate-easing' );
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}
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// Check if the duration is overriden
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if( toSlide.hasAttribute( 'data-auto-animate-duration' ) ) {
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options.duration = parseFloat( toSlide.getAttribute( 'data-auto-animate-duration' ) );
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}
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var fromTargets = {};
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@ -3803,7 +3845,7 @@
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toArray( toSlide.querySelectorAll( '[data-id]' ) ).forEach( function( toElement ) {
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var fromElement = fromTargets[ toElement.getAttribute( 'data-id' ) ];
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if( fromElement ) {
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autoAnimateElement( fromElement, toElement, offsetY );
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autoAnimateElement( fromElement, toElement, options );
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}
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} );
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@ -3815,25 +3857,22 @@
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* Auto-animates the properties of an element from their original
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* values to their new state.
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*
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* @param {HTMLElement} from
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* @param {HTMLElement} to
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* @param {HTMLElement} from
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* @param {HTMLElement} to
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* @param {Object} options
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*/
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function autoAnimateElement( from, to, offsetY ) {
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function autoAnimateElement( from, to, options ) {
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var fromProps = getAutoAnimatableProperties( from ),
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toProps = getAutoAnimatableProperties( to );
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var delta = {
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x: fromProps.x - toProps.x,
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y: fromProps.y - toProps.y,
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y: fromProps.y - toProps.y + options.offsetY,
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scaleX: fromProps.width / toProps.width,
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scaleY: fromProps.height / toProps.height
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};
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// Correction applied to account for varying vertical
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// positions in decks with vertical centering
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if( typeof offsetY === 'number' ) delta.y += offsetY;
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to.style.transition = 'none';
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to.style.transform = 'translate('+delta.x+'px, '+delta.y+'px) scale('+delta.scaleX+','+delta.scaleY+')';
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to.classList.add( 'auto-animate-target' );
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@ -3846,6 +3885,8 @@
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// Run the FLIP animation
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to.style.transition = '';
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to.style.transitionTimingFunction = options.easing;
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to.style.transitionDuration = options.duration + 's';
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to.style.transform = '';
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config.autoAnimateStyles.forEach( function( propertyName ) {
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@ -3883,11 +3924,20 @@
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// Cache the list of properties
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element._animatableProperties = properties;
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// Provide a method for rolling back this element to its
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// pre auto-animated state.
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// Provide a method for rolling back all changes made to this
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// element as part of auto-animating it
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autoAnimatedRollbacks.push( function( originalStyleAttribute ) {
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element.setAttribute( 'style', originalStyleAttribute );
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element.classList.remove( 'auto-animate-target' );
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element.style.transitionTimingFunction = '';
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element.style.transitionDuration = '';
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if( typeof originalStyleAttribute === 'string' ) {
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element.setAttribute( 'style', originalStyleAttribute );
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}
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else {
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element.removeAttribute( 'style' );
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}
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delete element._animatableProperties;
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}.bind( null, element.getAttribute( 'style' ) ) );
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@ -19,10 +19,17 @@
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<div class="slides">
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<section data-auto-animate>
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<h3 data-id="opacity-test">Opacity 1.0</h2>
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<h3 data-id="opacity-test">Opacity 1.0</h3>
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</section>
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<section data-auto-animate data-auto-animate-duration="0.3">
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<h3 data-id="opacity-test" style="opacity: 0.2; margin-top: 200px;">Opacity 0.2</h3>
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</section>
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<section data-auto-animate>
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<h3 data-id="text-props" style="background: #555;">Text props</h3>
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</section>
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<section data-auto-animate>
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<h3 data-id="opacity-test" style="opacity: 0.2; margin-top: 200px;">Opacity 0.2</h2>
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<h3 data-id="text-props" style="background: #555; line-height: 3em; letter-spacing: 0.2em;">Text props</h3>
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</section>
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<section data-auto-animate style="height: 600px">
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