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<?php |
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/* @description Transformation Style Sheets - Revolutionising PHP templating * |
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* @author Tom Butler [email protected] * |
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* @copyright 2017 Tom Butler <[email protected]> | https://r.je/ * |
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* @license http://www.opensource.org/licenses/bsd-license.php BSD License * |
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* @version 1.2 */ |
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namespace Transphporm\Property; |
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class ContentReplace { |
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private $content; |
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public function __construct(Content $content) { |
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$this->content = $content; |
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} |
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public function replaceContent($element, $content) { |
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if ($element->getAttribute('transphporm') == 'added') return; |
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//If this rule was cached, the elements that were added last time need to be removed prior to running the rule again. |
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if ($element->getAttribute('transphporm')) { |
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$this->replaceCachedContent($element); |
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} |
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$this->insertNodes($element, $content); |
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//Remove the original element from the final output |
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$element->setAttribute('transphporm', 'remove'); |
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} |
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private function insertNodes($element, $content) { |
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foreach ($this->content->getNode($content, $element->ownerDocument) as $node) { |
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if ($node instanceof \DomElement && !$node->getAttribute('transphporm')) $node->setAttribute('transphporm', 'added'); |
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$element->parentNode->insertBefore($node, $element); |
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} |
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} |
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private function replaceCachedContent($element) { |
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$el = $element; |
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while ($el = $el->previousSibling) { |
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if ($el->nodeType == 1 && $el->getAttribute('transphporm') != 'remove') { |
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$el->parentNode->removeChild($el); |
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} |
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} |
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$this->fixPreserveWhitespaceRemoveChild($element); |
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} |
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// $doc->preserveWhiteSpace = false should fix this but it doesn't |
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// Remove extra whitespace created by removeChild to avoid the cache growing 1 byte every time it's reloaded |
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// This may need to be moved in future, anywhere elements are being removed and files are cached may need to apply this fix |
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// Also remove any comments to avoid the comment being re-added every time the cache is reloaded |
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private function fixPreserveWhitespaceRemoveChild($element) { |
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if ($element->previousSibling instanceof \DomComment || ($element->previousSibling instanceof \DomText && $element->previousSibling->isElementContentWhiteSpace())) { |
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$element->parentNode->removeChild($element->previousSibling); |
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} |
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} |
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} |
Level-2 /
Transphporm
