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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\Repositories\OptionalElementsRepository; |
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class OptionalElementMinifier implements MinifierInterface |
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{ |
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/** |
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* Execute the minification rule. |
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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 $context) |
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{ |
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$elements = (new OptionalElementsRepository())->getElements(); |
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$contents = $context->getContents(); |
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foreach ($elements as $element) { |
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$contents = $this->removeElement($element, $contents); |
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} |
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return $context->setContents($contents); |
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} |
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/** |
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* Remove an optional element. |
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* |
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* @param object $element |
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* @param string $contents |
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* |
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* @return string |
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*/ |
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protected function removeElement($element, $contents) |
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{ |
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$newContents = preg_replace('@'.$element->regex.'@xi', '', $contents); |
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if ($newContents !== $contents && isset($element->elements)) { |
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foreach ($element->elements as $element) { |
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$newContents = $this->removeElement($element, $newContents); |
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} |
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} |
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return $newContents; |
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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::OPTIONAL_ELEMENTS; |
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} |
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} |
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ArjanSchouten /
HtmlMinifier
