ratchet
v1.1.0
Published
CSS3 Transform Parsers and Generator
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Ratchet - CSS3 Transform Parser & Manipulator
Ratchet assists with the process of dissecting CSS3 transform strings into javascript objects that you can then do something more intelligent with.
Example Usage
Displayed below is a simple example. First a html file with a div element styled to look like a square box:
<html>
<body>
<style type="text/css">
#box {
width: 50px;
height: 50px;
background: red;
}
</style>
<div id="box"></div>
<script src="simple-bundle.js"></script>
</body>
</html>And then some JS that can be used to manipulate the transform of the box ( in partnership with the feature module):
const ratchet = require('..');
const transform = require('feature/css')('transform');
const box = document.getElementById('box');
const { width: boxWidth } = box.getBoundingClientRect();
const t = transform && ratchet(transform(box));
if (t) {
let forwards = true;
// this is all a bit hacky, but you get the idea
const animate = () => {
if (forwards) {
t.translate.x.value += 2;
t.rotate.z.value += 5;
forwards = forwards && t.translate.x.value + boxWidth < window.innerWidth;
} else {
t.translate.x.value -= 2;
t.rotate.z.value -= 5;
forwards = t.translate.x.value < 0;
}
transform(box, t.toString());
window.requestAnimationFrame(animate);
};
animate();
}If you want to give this a go you should be able to run the example with
bde simply type yarn example
in the repository once cloned an dependencies have been installed.
Assuming it is working, you will see a square red box, moving and rotating towards the right of the screen.
Licence
The MIT License (MIT)
Copyright (c) 2019 Damon Oehlman [email protected]
Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.