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<?php |
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/** |
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* responsive-images-css |
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* |
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* @category Jkphl |
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* @package Jkphl\Respimgcss |
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* @subpackage Jkphl\Respimgcss\Application |
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* @author Joschi Kuphal <[email protected]> / @jkphl |
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* @copyright Copyright © 2018 Joschi Kuphal <[email protected]> / @jkphl |
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* @license http://opensource.org/licenses/MIT The MIT License (MIT) |
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*/ |
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/*********************************************************************************** |
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* The MIT License (MIT) |
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* |
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* Copyright © 2018 Joschi Kuphal <[email protected]> / @jkphl |
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* |
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* Permission is hereby granted, free of charge, to any person obtaining a copy of |
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* this software and associated documentation files (the "Software"), to deal in |
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* the Software without restriction, including without limitation the rights to |
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* use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of |
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* the Software, and to permit persons to whom the Software is furnished to do so, |
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* subject to the following conditions: |
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* |
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* The above copyright notice and this permission notice shall be included in all |
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* copies or substantial portions of the Software. |
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* |
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS |
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* FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR |
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* COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER |
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* IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN |
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* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. |
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***********************************************************************************/ |
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namespace Jkphl\Respimgcss\Application\Factory; |
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use ChrisKonnertz\StringCalc\Tokenizer\Token; |
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use Jkphl\Respimgcss\Application\Contract\UnitLengthInterface; |
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use Jkphl\Respimgcss\Application\Exceptions\InvalidArgumentException; |
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use Jkphl\Respimgcss\Application\Model\AbsoluteLength; |
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use Jkphl\Respimgcss\Application\Model\ViewportLength; |
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/** |
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* AbstractLength factory for calc() based values |
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* |
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* @package Jkphl\Respimgcss |
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* @subpackage Jkphl\Respimgcss\Application |
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*/ |
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class CalcLengthFactory extends AbstractLengthFactory |
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{ |
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/** |
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* Create a unit length from a calc() size string |
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* |
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* @param string $calcString calc() size string |
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* |
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* @return UnitLengthInterface |
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* @throws InvalidArgumentException If the calc() string is ill-formatted |
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*/ |
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public function createLengthFromString(string $calcString): UnitLengthInterface |
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{ |
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// If the calc() string is ill-formatted |
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if (!preg_match('/^calc\(.+\)$/', $calcString)) { |
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throw new InvalidArgumentException( |
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sprintf(InvalidArgumentException::ILL_FORMATTED_CALC_LENGTH_STRING_STR, $calcString), |
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InvalidArgumentException::ILL_FORMATTED_CALC_LENGTH_STRING |
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); |
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} |
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return $this->createCalculationContainerFromString($calcString); |
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} |
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/** |
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* Parse a calculation string and return a precompiled calculation node container |
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* |
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* @param string $calcString Calculation string |
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* |
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* @return UnitLengthInterface Calculation node container |
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*/ |
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protected function createCalculationContainerFromString(string $calcString): UnitLengthInterface |
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{ |
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$calculatorService = $this->calculatorServiceFactory->createCalculatorService(); |
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$calculationTokens = $calculatorService->tokenize($calcString); |
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$refinedTokens = $calculatorService->refineCalculationTokens($calculationTokens, $this->emPixel); |
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// If there's the viewport involved in the calculation: Create a relative calculated length |
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/** @var Token $token */ |
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foreach ($refinedTokens as $token) { |
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if ($calculatorService->isViewportToken($token)) { |
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return new ViewportLength( |
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$this->calculatorServiceFactory, |
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$refinedTokens, |
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$calcString |
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); |
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} |
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} |
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// Create and return an absolute length |
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return new AbsoluteLength( |
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$calculatorService->evaluate($refinedTokens), |
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UnitLengthInterface::UNIT_PIXEL, |
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$this->lengthNormalizerService |
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); |
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} |
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} |
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jkphl /
responsive-images-css
