s9e\TextFormatter\Configurator\TemplateNormalizations\MinifyInlineCSS

Complexity

Total Complexity

4

Size/Duplication

Total Lines	40
Duplicated Lines	0 %

Coupling/Cohesion

Components	1
Dependencies	2

Importance

Changes	1
Bugs	0	Features	0

3 Methods

Rating	Name	Duplication	Size	Complexity
A	getNodes()	0	4	1
A	normalizeAttribute()	0	10	2
A	minify()	0	9	1

<?php

/**
* @package   s9e\TextFormatter
* @copyright Copyright (c) 2010-2017 The s9e Authors
* @license   http://www.opensource.org/licenses/mit-license.php The MIT License
*/
namespace s9e\TextFormatter\Configurator\TemplateNormalizations;

use DOMAttr;
use s9e\TextFormatter\Configurator\Helpers\TemplateHelper;

class MinifyInlineCSS extends AbstractNormalization
{
	/**
	* {@inheritdoc}
	*/
	protected function getNodes()
	{
		return TemplateHelper::getCSSNodes($this->ownerDocument);
	}

	/**
	* {@inheritdoc}
	*/
	protected function normalizeAttribute(DOMAttr $attribute)
	{
		$css = $attribute->nodeValue;

		// Only minify if the value does not contain any XPath expression that's not an attribute
		if (!preg_match('(\\{(?!@\\w+\\}))', $css))
		{
			$attribute->nodeValue = $this->minify($css);
		}
	}

	/**
	* Minify a CSS string
	*
	* @param  string $css Original CSS
	* @return string      Minified CSS
	*/
	protected function minify($css)
	{
		$css = trim($css, " \n\t;");
		$css = preg_replace('(([:;])\\s+)', '$1', $css);
		$css = preg_replace('(#([0-9a-f])\\1([0-9a-f])\\2([0-9a-f])\\3)i', '#$1$2$3', $css);
		$css = str_replace(':0px', ':0', $css);

		return $css;
	}
}