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<?php |
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namespace ArjanSchouten\HtmlMinifier\Minifiers\Html; |
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use ArjanSchouten\HtmlMinifier\Minifiers\MinifierInterface; |
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use ArjanSchouten\HtmlMinifier\MinifyContext; |
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use ArjanSchouten\HtmlMinifier\Options; |
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use ArjanSchouten\HtmlMinifier\Util\Html; |
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use Illuminate\Support\Collection; |
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class RedundantAttributeMinifier implements MinifierInterface |
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{ |
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/** |
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* Attributes which are not needed by the browser. |
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* |
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* @var array |
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*/ |
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protected $redundantAttributes = [ |
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'script' => [ |
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'type' => 'text\/javascript', |
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'language' => 'javascript', |
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], |
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'link' => [ |
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'type' => 'text\/css', |
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], |
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'style' => [ |
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'type' => 'text\/css', |
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], |
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'form' => [ |
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'method' => 'get', |
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], |
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]; |
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/** |
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* Minify redundant attributes which are not needed by the browser. |
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* |
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* @param \ArjanSchouten\HtmlMinifier\MinifyContext $context |
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* |
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* @return \ArjanSchouten\HtmlMinifier\MinifyContext |
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*/ |
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public function process(MinifyContext $context) |
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{ |
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Collection::make($this->redundantAttributes)->each(function ($attributes, $element) use (&$context) { |
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Collection::make($attributes)->each(function ($value, $attribute) use ($element, &$context) { |
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$contents = preg_replace_callback( |
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'/ |
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'.$element.' # Match the given element |
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((?!\s*'.$attribute.'\s*=).)* # Match everything except the given attribute |
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( |
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\s*'.$attribute.'\s* # Match the attribute |
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=\s* # Match the equals sign |
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(["\']?) # Match the opening quotes |
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\s*'.$value.'\s* # Match the value |
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\3? # Match the captured opening quotes again |
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\s* |
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) |
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/xis', |
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function ($match) { |
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return $this->removeAttribute($match[0], $match[2]); |
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}, $context->getContents()); |
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$context->setContents($contents); |
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}); |
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}); |
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return $context; |
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} |
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/** |
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* Remove the attribute from the element. |
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* |
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* @param string $element |
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* @param string $attribute |
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* |
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* @return string |
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*/ |
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protected function removeAttribute($element, $attribute) |
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{ |
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$replacement = Html::hasSurroundingAttributes($attribute) ? ' ' : ''; |
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return str_replace($attribute, $replacement, $element); |
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} |
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/** |
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* Indicates if minification rules depends on command options. |
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* |
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* @return string |
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*/ |
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public function provides() |
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{ |
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return Options::REMOVE_DEFAULTS; |
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} |
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} |
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ArjanSchouten /
HtmlMinifier
