Alex - WP Imagery

wp-image.php

<?php

/**
 * Helpers
 *
 * A class for WordPress custom utility functions.
 *
 * @author      Ainsley Clark
 * @class       Helpers
 * @category    Class
 */

namespace TwoEasy\Media;

if (!defined('ABSPATH')) {
	exit; // Exit if accessed directly.
}

/**
 * Imagery defines the functions for obtaining imagery and
 * media from WordPress.
 */
final class Imagery {

	/**
	 * Image renders a responsive image.
	 * Takes in a class and a bool to indicate if the image
	 * should be lazy loaded. <noscript> Tags will be
	 * appended if lazy is set to true.
	 *
	 * @param $image
	 * @param string $class
	 * @param bool $lazy
	 * @param string $maxSize
	 */
	public static function the_wp_image($image, string $class = '', bool $lazy = false, string $maxSize = ''): void
	{
		echo self::get_wp_image($image, $class, $lazy, $maxSize);
	}

	/**
	 * Returns image instead of echoing.
	 *
	 * @param $image
	 * @param string $class
	 * @param bool $lazy
	 * @param string $maxSize
	 * @return string
	 */
	public static function get_wp_image($image, string $class = '', bool $lazy = false, string $maxSize = ''): string
	{
		if (empty($image)) {
			return "";
		}

		if (!is_array($image)) {
			$image = acf_get_attachment($image);
		}

		if (!$image) {
			return "";
		}

		$str = '';
		$lazyStr = '';
		$origClass = $class;

		if ($lazy) {
			$class = trim($class . ' lazy', ' ');
			$lazyStr = 'data-';
		}

		if (!in_array('sizes', $image) || $image['mime_type'] === "image/svg+xml") {
			return '<img ' . $lazyStr . 'src="' . $image['url'] . '" class="' . $class . '" alt="' . $image['alt'] . '">';
		}

		$sizes = $image['sizes'];
		if ($sizes['mobile']) {
			$str .= '<source media="(max-width: 767px)" ' . $lazyStr . 'srcset="' . $sizes['mobile'] . '" data-size="mobile">';
		}

		if ($sizes['tablet']) {
			$str .= '<source media="(max-width: 1024px)" ' . $lazyStr . 'srcset="' . $sizes['tablet'] . '" data-size="tablet">';
		}

		if ($sizes['desktop']) {
			$str .= '<source media="(max-width: 1408px)" ' . $lazyStr . 'srcset="' . $sizes['desktop'] . '" data-size="desktop">';
		}

		if ($maxSize !== '') {
			$str .= '<img class="' . $class . '"' . $lazyStr . 'src="' . $sizes[$maxSize] . '"  alt="' . $image['alt'] . '" data-size="' . $maxSize . '">';
		} else if ($sizes['hd']) {
			$str .= '<img class="' . $class . '"' . $lazyStr . 'src="' . $sizes['hd'] . '"  alt="' . $image['alt'] . '" data-size="hd">';
		} else {
			$str .= '<img class="' . $class . '"' . $lazyStr . 'src="' .$image['url'] . '"  alt="' . $image['alt'] . '" data-size="hd">';
		}

		if ($lazy) {
			$str .= '<noscript><img class="' . $origClass . '" src="' . $image['url'] . '"  alt="' . $image['alt'] . '"></noscript>';
		}

		return $str;
	}

}