A method of using javascript to give CSS animations and transitions a type of "callback function". This example uses animation iteration as opposed to the other example which uses animation end
A Pen by Zach Saucier on CodePen.
Forked from anonymous/CSS-Callback-Functions-Using-Iteration.markdown
Created
August 5, 2014 08:30
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| <script src="http://code.jquery.com/jquery-2.0.0.js"></script> | |
| <h3>Pure CSS</h3> | |
| <div class='heart animated css'></div> | |
| <h3>With Javascript</h3> | |
| <div class='heart animated'></div> |
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| var heart = document.getElementsByClassName('heart')[1], | |
| pfx = ["webkit", "moz", "MS", "o", ""], | |
| hovered = false; | |
| function AnimationListener() { | |
| if(hovered) | |
| { | |
| heart.classList.remove('animated'); | |
| heart.style.webkitTransform = 'scale(2)'; | |
| heart.style.MozTransform = 'scale(2)'; | |
| heart.style.msTransform = 'scale(2)'; | |
| heart.style.OTransform = 'scale(2)'; | |
| heart.style.transform = 'scale(2)'; | |
| } | |
| } | |
| function TransitionListener() { | |
| if(!hovered) | |
| { | |
| heart.classList.add('animated'); | |
| } | |
| } | |
| function PrefixedEvent(element, type, callback) { | |
| for (var p = 0; p < pfx.length; p++) { | |
| if (!pfx[p]) type = type.toLowerCase(); | |
| element.addEventListener(pfx[p]+type, callback, false); | |
| } | |
| } | |
| PrefixedEvent(heart, "AnimationIteration", AnimationListener); | |
| heart.onmouseover = function() { | |
| hovered = true; | |
| } | |
| heart.onmouseout = function() { | |
| setTimeout(function() { hovered = false; }, 500); | |
| PrefixedEvent(heart, "TransitionEnd", TransitionListener); | |
| heart.style.webkitTransform = 'scale(1)'; | |
| heart.style.MozTransform = 'scale(1)'; | |
| heart.style.msTransform = 'scale(1)'; | |
| heart.style.OTransform = 'scale(1)'; | |
| heart.style.transform = 'scale(1)'; | |
| } |
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| /* Most of the heart's CSS came from the Shapes of CSS */ | |
| /* http://css-tricks.com/examples/ShapesOfCSS/ */ | |
| .heart { | |
| position: relative; | |
| width: 100px; | |
| height: 90px; | |
| margin: 30px; | |
| -webkit-transform: scale(1); | |
| -ms-transform: scale(1); | |
| -o-transform: scale(1); | |
| -moz-transform: scale(1); | |
| transform: scale(1); | |
| -webkit-transform-origin: center center; | |
| -moz-transform-origin: center center; | |
| -ms-transform-origin: center center; | |
| -o-transform-origin: center center; | |
| transition: all 1s; | |
| } | |
| .heart.css { | |
| -webkit-animation-delay:1s; | |
| -moz-animation-delay:1s; | |
| -ms-animation-delay:1s; | |
| -o-animation-delay:1s; | |
| animation-dely:1s; | |
| } | |
| .heart.animated { | |
| -webkit-animation: 1600ms pulsate infinite alternate ease-in-out; | |
| -moz-animation: 1600ms pulsate infinite alternate ease-in-out; | |
| -ms-animation: 1600ms pulsate infinite alternate ease-in-out; | |
| -o-animation: 1600ms pulsate infinite alternate ease-in-out; | |
| animation: 1600ms pulsate infinite alternate ease-in-out; | |
| } | |
| .heart:before, | |
| .heart:after { | |
| position: absolute; | |
| content: ""; | |
| left: 50px; | |
| top: 0; | |
| width: 50px; | |
| height: 80px; | |
| background: red; | |
| -moz-border-radius: 50px 50px 0 0; | |
| border-radius: 50px 50px 0 0; | |
| -webkit-transform: rotate(-45deg); | |
| -moz-transform: rotate(-45deg); | |
| -ms-transform: rotate(-45deg); | |
| -o-transform: rotate(-45deg); | |
| transform: rotate(-45deg); | |
| -webkit-transform-origin: 0 100%; | |
| -moz-transform-origin: 0 100%; | |
| -ms-transform-origin: 0 100%; | |
| -o-transform-origin: 0 100%; | |
| transform-origin: 0 100%; | |
| } | |
| .heart:after { | |
| left: 0; | |
| -webkit-transform: rotate(45deg); | |
| -moz-transform: rotate(45deg); | |
| -ms-transform: rotate(45deg); | |
| -o-transform: rotate(45deg); | |
| transform: rotate(45deg); | |
| -webkit-transform-origin: 100% 100%; | |
| -moz-transform-origin: 100% 100%; | |
| -ms-transform-origin: 100% 100%; | |
| -o-transform-origin: 100% 100%; | |
| transform-origin :100% 100%; | |
| } | |
| .heart.css:hover { | |
| -webkit-transform: scale(2); | |
| -moz-transform: scale(2); | |
| -ms-transform: scale(2); | |
| -o-transform: scale(2); | |
| transform: scale(2); | |
| -webkit-animation:''; | |
| -moz-animation:none; | |
| -ms-animation:''; | |
| -o-animation:''; | |
| animation:''; | |
| } | |
| @keyframes pulsate { | |
| 0% { transform: scale(1); } | |
| 50% { transform: scale(1.3); } | |
| 100% { transform: scale(1); } | |
| } | |
| @-webkit-keyframes pulsate { | |
| 0% { -webkit-transform: scale(1); } | |
| 50% { -webkit-transform: scale(1.3); } | |
| 100% { -webkit-transform: scale(1); } | |
| } | |
| @-moz-keyframes pulsate { | |
| 0% { -moz-transform: scale(1); } | |
| 50% { -moz-transform: scale(1.3); } | |
| 100% { -moz-transform: scale(1); } | |
| } | |
| @-ms-keyframes pulsate { | |
| 0% { -ms-transform: scale(1); } | |
| 50% { -ms-transform: scale(1.3); } | |
| 100% { -ms-transform: scale(1); } | |
| } | |
| @-o-keyframes pulsate { | |
| 0% { -o-transform: scale(1); } | |
| 50% { -o-transform: scale(1.3); } | |
| 100% { -o-transform: scale(1); } | |
| } |
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