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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 Repeat implements \Transphporm\Property { |
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private $functionSet; |
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private $elementData; |
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private $baseDir; |
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public function __construct(\Transphporm\FunctionSet $functionSet, \Transphporm\Hook\ElementData $elementData, &$baseDir) { |
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$this->functionSet = $functionSet; |
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$this->elementData = $elementData; |
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$this->baseDir = &$baseDir; |
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} |
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public function run(array $values, \DomElement $element, array $rules, \Transphporm\Hook\PseudoMatcher $pseudoMatcher, array $properties = []) { |
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$values = $this->fixEmpty($values); |
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if ($element->getAttribute('transphporm') === 'added') return $element->parentNode->removeChild($element); |
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$max = $this->getMax($values); |
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$count = 0; |
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foreach ($values[0] as $key => $iteration) { |
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if ($count+1 > $max) break; |
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$clone = $this->cloneElement($element, $iteration, $key, $count++); |
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//Re-run the hook on the new element, but use the iterated data |
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//Don't run repeat on the clones element or it will loop forever |
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unset($rules['repeat']); |
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$this->createHook($rules, $pseudoMatcher, $properties)->run($clone); |
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} |
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//Remove the original element |
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$element->parentNode->removeChild($element); |
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return false; |
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} |
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private function fixEmpty($value) { |
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if (empty($value[0])) $value[0] = []; |
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return $value; |
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} |
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private function cloneElement($element, $iteration, $key, $count) { |
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$clone = $element->cloneNode(true); |
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$this->tagElement($clone, $count); |
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$this->elementData->bind($clone, $iteration, 'iteration'); |
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$this->elementData->bind($clone, $key, 'key'); |
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$element->parentNode->insertBefore($clone, $element); |
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return $clone; |
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} |
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private function tagElement($element, $count) { |
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//Mark all but one of the nodes as having been added by transphporm, when the hook is run again, these are removed |
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if ($count > 0) $element->setAttribute('transphporm', 'added'); |
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} |
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private function getMax($values) { |
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return isset($values[1]) ? $values[1] : PHP_INT_MAX; |
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} |
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private function createHook($newRules, $pseudoMatcher, $properties) { |
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$hook = new \Transphporm\Hook\PropertyHook($newRules, $this->baseDir, $this->baseDir, $pseudoMatcher, new \Transphporm\Parser\Value($this->functionSet), $this->functionSet); |
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foreach ($properties as $name => $property) $hook->registerProperty($name, $property); |
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return $hook; |
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} |
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} |
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