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<?php |
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|
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/** |
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* Class QRMarkup |
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* |
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* @created 17.12.2016 |
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* @author Smiley <[email protected]> |
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* @copyright 2016 Smiley |
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* @license MIT |
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*/ |
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namespace WCPOS\Vendor\chillerlan\QRCode\Output; |
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|
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use function is_string, preg_match, strip_tags, trim; |
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/** |
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* Abstract for markup types: HTML, SVG, ... XML anyone? |
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*/ |
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abstract class QRMarkup extends QROutputAbstract |
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{ |
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/** |
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* note: we're not necessarily validating the several values, just checking the general syntax |
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* note: css4 colors are not included |
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* |
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* @todo: XSS proof |
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* |
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* @see https://developer.mozilla.org/en-US/docs/Web/CSS/color_value |
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* @inheritDoc |
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*/ |
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public static function moduleValueIsValid($value) : bool |
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{ |
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if (!is_string($value)) { |
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return \false; |
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} |
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$value = trim(strip_tags($value), " '\"\r\n\t"); |
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// hex notation |
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// #rgb(a) |
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// #rrggbb(aa) |
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if (preg_match('/^#([\\da-f]{3}){1,2}$|^#([\\da-f]{4}){1,2}$/i', $value)) { |
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return \true; |
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} |
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// css: hsla/rgba(...values) |
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if (preg_match('#^(hsla?|rgba?)\\([\\d .,%/]+\\)$#i', $value)) { |
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return \true; |
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} |
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// predefined css color |
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if (preg_match('/^[a-z]+$/i', $value)) { |
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return \true; |
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} |
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return \false; |
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} |
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/** |
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* @inheritDoc |
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*/ |
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protected function prepareModuleValue($value) : string |
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{ |
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return trim(strip_tags($value), " '\"\r\n\t"); |
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} |
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/** |
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* @inheritDoc |
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*/ |
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protected function getDefaultModuleValue(bool $isDark) : string |
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{ |
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return $isDark ? '#000' : '#fff'; |
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} |
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/** |
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* @inheritDoc |
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*/ |
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public function dump(?string $file = null) : string |
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{ |
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$data = $this->createMarkup($file !== null); |
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$this->saveToFile($data, $file); |
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return $data; |
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} |
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/** |
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* returns a string with all css classes for the current element |
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*/ |
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protected function getCssClass(int $M_TYPE = 0) : string |
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{ |
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return $this->options->cssClass; |
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} |
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/** |
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* returns the fully parsed and rendered markup string for the given input |
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*/ |
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protected abstract function createMarkup(bool $saveToFile) : string; |
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} |
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