Jkphl\Respimgcss\Domain\Service\DensityCssRulesetCompilerService

Complexity

Total Complexity

5

Size/Duplication

Total Lines	45
Duplicated Lines	0 %

Test Coverage

Coverage

100%

Importance

Changes

0

2 Methods

Rating	Name	Duplication	Size	Complexity
A	compile()	0	12	3
A	createImageCandidateRule()	0	14	2

<?php

/**
 * responsive-images-css
 *
 * @category   Jkphl
 * @package    Jkphl\Respimgcss
 * @subpackage Jkphl\Respimgcss\Domain\Service
 * @author     Joschi Kuphal <joschi@tollwerk.de> / @jkphl
 * @copyright  Copyright © 2018 Joschi Kuphal <joschi@tollwerk.de> / @jkphl
 * @license    http://opensource.org/licenses/MIT The MIT License (MIT)
 */

/***********************************************************************************
 *  The MIT License (MIT)
 *
 *  Copyright © 2018 Joschi Kuphal <joschi@kuphal.net> / @jkphl
 *
 *  Permission is hereby granted, free of charge, to any person obtaining a copy of
 *  this software and associated documentation files (the "Software"), to deal in
 *  the Software without restriction, including without limitation the rights to
 *  use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
 *  the Software, and to permit persons to whom the Software is furnished to do so,
 *  subject to the following conditions:
 *
 *  The above copyright notice and this permission notice shall be included in all
 *  copies or substantial portions of the Software.
 *
 *  THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 *  IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
 *  FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
 *  COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
 *  IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
 *  CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 ***********************************************************************************/

namespace Jkphl\Respimgcss\Domain\Service;

use Jkphl\Respimgcss\Domain\Contract\CssMinMaxMediaConditionInterface;
use Jkphl\Respimgcss\Domain\Contract\CssRulesetInterface;
use Jkphl\Respimgcss\Domain\Contract\ImageCandidateInterface;
use Jkphl\Respimgcss\Domain\Contract\LengthFactoryInterface;
use Jkphl\Respimgcss\Domain\Model\Css\ResolutionMediaCondition;
use Jkphl\Respimgcss\Domain\Model\Css\Rule;
use Jkphl\Respimgcss\Domain\Model\AbstractLength;

/**
 * Pixel density CSS ruleset compiler service
 *
 * @package    Jkphl\Respimgcss
 * @subpackage Jkphl\Respimgcss\Domain
 */
class DensityCssRulesetCompilerService extends AbstractCssRulesetCompilerService
{
    /**
     * Compile a CSS ruleset based on the registered breakpoints, image candidates and a given density
     *
     * @param float $density Density
     *
     * @return CssRulesetInterface CSS ruleset
     */
    public function compile(float $density): CssRulesetInterface
    {
        // Run through and test all image candidates
        /** @var ImageCandidateInterface $imageCandidate */
        foreach ($this->imageCandidates as $imageCandidate) {
            if ($imageCandidate->getValue() >= $density) {
                $this->cssRuleset->appendRule($this->createImageCandidateRule($imageCandidate, $density));
                break;
            }
        }

        return $this->cssRuleset;
    }

    /**
     * Create a density CSS rule for a particular image candidate
     *
     * @param ImageCandidateInterface $imageCandidate Image candidate
     * @param float $density                          Density
     *
     * @return Rule Density CSS rule
     */
    protected function createImageCandidateRule(ImageCandidateInterface $imageCandidate, float $density): Rule
    {
        $rule = new Rule($imageCandidate);

        // If this is not the default density: Add a resolution condition
        if ($density > 1) {
            $resolutionMediaCondition = new ResolutionMediaCondition(
                $this->lengthFactory->createAbsoluteLength($density),
                CssMinMaxMediaConditionInterface::MIN
            );
            $rule                     = $rule->appendCondition($resolutionMediaCondition);
        }

        return $rule;
    }
}