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<?php |
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/** |
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* Image Optimize plugin for Craft CMS |
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* |
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* Automatically optimize images after they've been transformed |
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* |
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* @link https://nystudio107.com |
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* @copyright Copyright (c) nystudio107 |
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*/ |
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namespace nystudio107\imageoptimize\models; |
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use craft\helpers\Html; |
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use craft\helpers\Template; |
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use Twig\Markup; |
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/** |
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* @author nystudio107 |
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* @package ImageOptimize |
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* @since 5.0.0-beta.1 |
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*/ |
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class ImgTag extends BaseImageTag |
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{ |
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/** |
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* @var string The loading scheme to use: 'eager', 'lazy', 'lazySizes', 'lazySizesFallback' |
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*/ |
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public string $loadingStrategy = 'eager'; |
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/** |
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* @var string The type of placeholder image to use: 'box', 'color', 'image', 'silhouette' |
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*/ |
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public string $placeholder = 'box'; |
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/** |
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* @var array array of tag attributes for the <img> tag |
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*/ |
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public array $imgAttrs = []; |
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/** |
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* @param $config |
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*/ |
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public function __construct($config = []) |
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{ |
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parent::__construct($config); |
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// Populate the $imageAttrs |
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$this->imgAttrs = [ |
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'class' => '', |
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'style' => '', |
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'width' => $this->optimizedImage->placeholderWidth, |
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'height' => $this->optimizedImage->placeholderHeight, |
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'src' => reset($this->optimizedImage->optimizedImageUrls), |
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'srcset' => $this->optimizedImage->getSrcsetFromArray($this->optimizedImage->optimizedImageUrls), |
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'sizes' => '100vw', |
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'loading' => '', |
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]; |
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} |
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/** |
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* Set the $loading property |
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* |
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* @param string $value |
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* @return $this |
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*/ |
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public function loadingStrategy(string $value): ImgTag |
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{ |
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$this->loadingStrategy = $value; |
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return $this; |
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} |
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/** |
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* Set the $placeholder property |
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* |
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* @param string $value |
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* @return $this |
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*/ |
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public function placeholder(string $value): ImgTag |
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{ |
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$this->placeholder = $value; |
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return $this; |
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} |
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/** |
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* Merge the passed array of tag attributes into $imgAttrs |
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* |
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* @param array $value |
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* @return $this |
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*/ |
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public function imgAttrs(array $value): ImgTag |
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{ |
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$this->imgAttrs = array_merge($this->imgAttrs, $value); |
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return $this; |
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} |
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/** |
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* Generate a complete <img> tag for the $optimizedImage OptimizedImage model |
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* |
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* @return Markup |
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*/ |
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public function render(): Markup |
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{ |
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$attrs = $this->imgAttrs; |
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// Handle lazy loading |
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if ($this->loadingStrategy !== 'eager') { |
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$attrs = $this->swapLazyLoadAttrs($this->loadingStrategy, $this->placeholder, $attrs); |
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} |
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// Remove any empty attributes |
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$attrs = array_filter($attrs); |
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// Render the tag |
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$tag = Html::tag('img', '', $attrs); |
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return Template::raw($tag); |
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} |
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} |
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nystudio107 /
craft-imageoptimize
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