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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 2015 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 1.0 */ |
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namespace Transphporm\Property; |
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class Content implements \Transphporm\Property { |
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private $data; |
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private $headers; |
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private $formatter; |
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public function __construct($data, &$headers, \Transphporm\Hook\Formatter $formatter) { |
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$this->data = $data; |
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$this->headers = &$headers; |
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$this->formatter = $formatter; |
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} |
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public function run($value, \DomElement $element, array $rules, \Transphporm\Hook\PseudoMatcher $pseudoMatcher, array $properties = []) { |
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if ($this->shouldRun($element) == false) return; |
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$value = $this->formatter->format($value, $rules); |
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if (!$this->processPseudo($value, $element, $pseudoMatcher)) { |
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//Remove the current contents |
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$this->removeAllChildren($element); |
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//Now make a text node |
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if ($this->getContentMode($rules) === 'replace') $this->replaceContent($element, $value); |
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else $this->appendContent($element, $value); |
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} |
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} |
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private function shouldRun($element) { |
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if ($element->getAttribute('transphporm') === 'remove') return false; |
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while (!($element instanceof \DomDocument) && $element->parentNode) { |
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if ($element->getAttribute('transphporm') == 'includedtemplate') return false; |
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$element = $element->parentNode; |
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} |
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return true; |
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} |
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private function getContentMode($rules) { |
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return (isset($rules['content-mode'])) ? $rules['content-mode'] : 'append'; |
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} |
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private function processPseudo($value, $element, $pseudoMatcher) { |
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$pseudoContent = ['attr', 'header', 'before', 'after']; |
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foreach ($pseudoContent as $pseudo) { |
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if ($pseudoMatcher->hasFunction($pseudo)) { |
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$this->$pseudo($value, $pseudoMatcher->getFuncArgs($pseudo), $element); |
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return true; |
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} |
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} |
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return false; |
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} |
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private function getNode($node, $document) { |
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foreach ($node as $n) { |
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if ($n instanceof \DomElement) { |
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$new = $document->importNode($n, true); |
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$new->setAttribute('transphporm', 'added'); |
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} |
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else { |
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if ($n instanceof \DomText) $n = $n->nodeValue; |
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$new = $document->createElement('text'); |
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$new->appendChild($document->createTextNode($n)); |
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$new->setAttribute('transphporm', 'text'); |
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} |
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yield $new; |
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} |
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} |
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/** Functions for writing to pseudo elements, attr, before, after, header */ |
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private function attr($value, $pseudoArgs, $element) { |
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$element->setAttribute($pseudoArgs, implode('', $value)); |
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} |
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private function header($value, $pseudoArgs, $element) { |
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$this->headers[] = [$pseudoArgs, implode('', $value)]; |
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} |
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private function before($value, $pseudoArgs, $element) { |
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foreach ($this->getNode($value, $element->ownerDocument) as $node) { |
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$element->insertBefore($node, $element->firstChild); |
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} |
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return true; |
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} |
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private function after($value, $pseudoArgs, $element) { |
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foreach ($this->getNode($value, $element->ownerDocument) as $node) { |
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$element->appendChild($node); |
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} |
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} |
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private function removeAdded($e) { |
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$remove = []; |
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while ($e = $e->previousSibling && !in_array($e->getAttribute('transphporm'), [null, 'remove'])) { |
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$remove[] = $e; |
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} |
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foreach ($remove as $r) $r->parentNode->removeChild($r); |
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} |
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private function replaceContent($element, $content) { |
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//If this rule was cached, the elements that were added last time need to be removed prior to running the rule again. |
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$this->removeAdded($element); |
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foreach ($this->getNode($content, $element->ownerDocument) as $node) { |
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$element->parentNode->insertBefore($node, $element); |
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} |
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$element->setAttribute('transphporm', 'remove'); |
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} |
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private function appendContent($element, $content) { |
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foreach ($this->getNode($content, $element->ownerDocument) as $node) { |
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$element->appendChild($node); |
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} |
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} |
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private function removeAllChildren($element) { |
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while ($element->hasChildNodes()) $element->removeChild($element->firstChild); |
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} |
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} |
Level-2 /
Transphporm
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When comparing two booleans, it is generally considered safer to use the strict comparison operator.