pleeease-filters

Pleeease: filters

Convert CSS shorthand filters to SVG equivalents.

Used by Pleeease, a CSS post-processor.

##Example

You write foo.css:

.blur {
	filter: blur(4px);
}

You get bar.css:

.blur {
	filter: url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg"><filter id="filter"><feGaussianBlur stdDeviation="4" /></filter></svg>#filter');
	filter: blur(4px);
}

##Usage

$ npm install pleeease-filters

var filters = require('pleeease-filters'),
	fs      = require('fs');

var css = fs.readFileSync('app.css', 'utf8');

// define options here
var options = {};

var fixed = filters.process(css, options);

fs.writeFile('app.min.css', fixed, function (err) {
  if (err) {
    throw err;
  }
  console.log('File saved!');
});

##Options

You can also add IE filters with an option:

// set options
var options = {
	oldIE: true
}

Using the first example, you'll get:

.blur {
	filter: url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg"><filter id="filter"><feGaussianBlur stdDeviation="4" /></filter></svg>#filter');
	filter: blur(4px);
	filter: progid:DXImageTransform.Microsoft.Blur(pixelradius=4);
}

##Note

Be careful, not all browsers support CSS or SVG filters. For your information, latest WebKit browsers support CSS shorthand, Firefox support SVG filters and IE9- support IE filters (limited and slightly degraded). It means that IE10+, Opera Mini and Android browsers have no support at all. Moreover, IE filters shouldn't be used.

##Licence

MIT © 2014 Vincent De Oliveira · iamvdo

This module is an adaptation of CSS-Filters-Polyfill. Copyright (c) 2012 - 2013 Christian Schepp Schaefer

Changelog

0.1.2 - 2014

• Added: Create SVG blur filter, even with unit-less 0