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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\Domain\Service |
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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\Domain\Service; |
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use Jkphl\Respimgcss\Domain\Contract\AbsoluteLengthInterface; |
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use Jkphl\Respimgcss\Domain\Contract\CssRulesetCompilerServiceInterface; |
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use Jkphl\Respimgcss\Domain\Contract\CssRulesetInterface; |
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use Jkphl\Respimgcss\Domain\Contract\ImageCandidateSetInterface; |
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use Jkphl\Respimgcss\Domain\Contract\LengthFactoryInterface; |
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/** |
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* Abstract CSS Ruleset compiler service |
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* |
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* @package Jkphl\Respimgcss |
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* @subpackage Jkphl\Respimgcss\Domain |
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*/ |
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abstract class AbstractCssRulesetCompilerService implements CssRulesetCompilerServiceInterface |
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{ |
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/** |
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* CSS Ruleset |
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* |
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* @var CssRulesetInterface |
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*/ |
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protected $cssRuleset; |
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/** |
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* Breakpoints |
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* |
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* @var AbsoluteLengthInterface[] |
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*/ |
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protected $breakpoints; |
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/** |
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* Image candidates |
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* |
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* @var ImageCandidateSetInterface |
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*/ |
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protected $imageCandidates = null; |
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/** |
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* Length factory |
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* |
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* @var LengthFactoryInterface |
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*/ |
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protected $lengthFactory; |
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/** |
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* CSS Ruleset Compiler Service constructor |
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* |
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* @param CssRulesetInterface $cssRuleset CSS Ruleset |
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* @param AbsoluteLengthInterface[] $breakpoints Breakpoints |
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* @param ImageCandidateSetInterface $imageCandidates Image candidates |
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* @param LengthFactoryInterface $lengthFactory Length factory |
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*/ |
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public function __construct( |
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CssRulesetInterface $cssRuleset, |
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array $breakpoints, |
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ImageCandidateSetInterface $imageCandidates, |
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LengthFactoryInterface $lengthFactory |
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) { |
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$this->cssRuleset = $cssRuleset; |
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$this->imageCandidates = $imageCandidates; |
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$this->lengthFactory = $lengthFactory; |
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$this->breakpoints = $this->prepareBreakpoints($breakpoints); |
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} |
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/** |
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* Prepare the list of breakpoints |
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* |
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* @param AbsoluteLengthInterface[] $breakpoints Breakpoints |
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* |
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* @return AbsoluteLengthInterface[] Prepared breakpoints |
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*/ |
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protected function prepareBreakpoints(array $breakpoints): array |
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{ |
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usort($breakpoints, [$this, 'sortBreakpoints']); |
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// Add a virtual zero-width breakpoint to the beginning of the list if necessary |
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if (count($breakpoints) && ($breakpoints[0]->getValue() != 0)) { |
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array_unshift($breakpoints, $this->lengthFactory->createAbsoluteLength(0)); |
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} |
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return $breakpoints; |
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} |
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/** |
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* Sort two breakpoints by size |
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* |
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* @param AbsoluteLengthInterface $breakpoint1 Breakpoint 1 |
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* @param AbsoluteLengthInterface $breakpoint2 Breakpoint 2 |
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* |
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* @return int Sorting |
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*/ |
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protected function sortBreakpoints(AbsoluteLengthInterface $breakpoint1, AbsoluteLengthInterface $breakpoint2): int |
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{ |
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return ($breakpoint1->getValue() == $breakpoint2->getValue()) ? 0 : |
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($breakpoint1->getValue() > $breakpoint2->getValue()) ? 1 : -1; |
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} |
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} |
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jkphl /
responsive-images-css
