This library is a wrapper around Keyframes.js, a vanilla js library that allows dynamic generation of CSS keyframes with callback events and other niceness.
CSS3 introduced fancy features like transformations, translations, rotations and scaling. jQuery has a very nice built in $(selector).animate() function which allows for easy setup of these animations. However, jQuery's animate() does not support multiple keyframes. jQuery.Keyframes helps you accomplish just that.
<script src='http://code.jquery.com/jquery-3.3.1.slim.min.js'></script>
Include script in your document using the following line:
<script src='/path/to/jquery.keyframes[.min].js'></script>
Be sure to define and play animations only after the page has loaded using window.onload.
Detecting CSS animation support
var supportedFlag = $.keyframe.isSupported();
Adding a new animation sequence (keyframe)
$.keyframe.define([{ name: 'trapdoor-sequence', '0%': {'height': '70px'}, '30%': {'height': '10px'}, '60%': {'height': '30px'}, '100%': {'height': '10px'} }]);
Adding a single frame style
$.keyframe.define({ name: 'ball-roll', from: { 'transform': 'rotate(0deg)' }, to: { 'transform': 'rotate(360deg)' } });
Adding multiple frame styles
$.keyframe.define([{ name: 'roll-clockwise', '0%': { 'margin-left' : '0px', 'background-color' : 'red', 'transform' : 'rotate(0deg)' }, '100%': { 'margin-left' : '600px', 'transform' : 'rotate(360deg)' } },{ name: 'roll-anti-clockwise', '0%': { 'margin-left' : '0px', 'background-color' : 'red', 'transform' : 'rotate(0deg)' }, '100%': { 'margin-left' : '600px', 'transform' : 'rotate(-360deg)' } } ]);
Adding styles and properties in array fashion
Gives resemblance to CSS styling definitions
var shake_start = {'transform': 'translate(0px)'}; var shake_odd1 = {'transform': 'translate(-10px, -10px)'}; var shake_even1 = {'transform': 'translate(10px, 10px)'}; var shake_odd2 = {'transform': 'translate(10px, -10px)'}; var shake_even2 = {'transform': 'translate(-10px, 10px)'}; $.keyframe.define([{ name: 'crazy', '0%': shake_start, '10%': shake_odd2, '20%': shake_even1, '30%': shake_odd2, '40%': shake_even2, '50%': shake_odd2, '60%': shake_even1, '75.3%': shake_odd1, '80.45%': shake_even2, '91.6%': shake_odd1 } ]);
Please note, you can add as many properties to the array as you want to
Responsive animations
$.keyframe.define([{ name: 'roll-clockwise', media: 'screen and (max-width: 700px)', from: { 'margin-left' : '0px' }, to: { 'margin-left' : '600px' } } ]);
Playing an animation
The css3 animation methods available are better documented here: http://www.w3schools.com/css/css3_animations.asp
$(selector).playKeyframe({ name: 'trapdoor-sequence', // name of the keyframe you want to bind to the selected element duration: '1s', // [optional, default: 0, in ms] how long you want it to last in milliseconds timingFunction: 'linear', // [optional, default: ease] specifies the speed curve of the animation delay: '0s', //[optional, default: 0s] how long you want to wait before the animation starts iterationCount: 'infinite', //[optional, default:1] how many times you want the animation to repeat direction: 'normal', //[optional, default: 'normal'] which direction you want the frames to flow fillMode: 'forwards', //[optional, default: 'forward'] how to apply the styles outside the animation time, default value is forwards complete: function(){} //[optional] Function fired after the animation is complete. If repeat is infinite, the function will be fired every time the animation is restarted. });
Playing an animation (shorthand)
$(selector).playKeyframe( 'trapdoor-sequence 1s linear 0s infinite normal forwards', complete );
Playing multiple animations
$(selector).playKeyframe([ 'trapdoor-sequence 1s linear 0s infinite', { name: 'ball-roll', duration: "3s", timingFunction: 'ease', iterationCount: 1 } ], complete);
Reset the animation
$(selector).resetKeyframe(callback);
Freeze keyframe animation and kill callbacks
$(selector).pauseKeyframe();
Resume keyframe animation
$(selector).resumeKeyframe();
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See other plugins that allow for spritesheets & more complex movement paths: https://github.com/Keyframes
- Keyframes.Pathfinder: A plugin for jQuery.Keyframes that generates complex movement paths
- Keyframes.Spritesheet: Keyframes.Spritesheet easily generates css3 keyframes for elements using animated spritesheets.
1.0.0
- Moved to use keyframes.js as a base 0.1.0
- Remove all vendor prefix functionality (if you need this stick with 0.0.9)
- Remove debug output
- Source code now in ES6
- Remove advanced example
- Add jQuery 3.x to example
- Add linting 0.0.9
- Add debug output