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divi/includes/builder/module/helpers/Media.php
2021-12-07 11:08:05 +00:00

66 lines
1.7 KiB
PHP

<?php
/**
* ET_Builder_Module_Helper_Media class file.
*
* @class ET_Builder_Module_Helper_Media
* @package Divi\Builder
*/
if ( ! defined( 'ABSPATH' ) ) {
die( 'Direct access forbidden.' );
}
/**
* Class ET_Builder_Module_Helper_Media.
*
* Module helpers for media (image).
*
* @since 4.6.4
*/
class ET_Builder_Module_Helper_Media {
/**
* Return instance of current class.
*
* @return ET_Builder_Module_Helper_Media
*/
public static function instance() {
static $instance;
return $instance ? $instance : $instance = new self();
}
/**
* Get image attachment class.
*
* - wp-image-{$id}
* Add `wp-image-{$id}` class to let `wp_filter_content_tags()` fill in missing
* height and width attributes on the image. Those attributes are required to add
* loading "lazy" attribute on the image. WP doesn't have specific method to only
* generate this class. It's included in get_image_tag() to generate image tags.
*
* @since 4.6.4
*
* @param array $attrs All module attributes.
* @param string $source_key Key of image source.
* @param integer $attachment_id Attachment ID. Optional.
*
* @return string
*/
public function get_image_attachment_class( $attrs, $source_key, $attachment_id = 0 ) {
$attachment_class = '';
// 1.a. Find attachment ID by URL. Skip if the source key is empty.
if ( ! empty( $source_key ) ) {
$attachment_src = et_()->array_get( $attrs, $source_key, '' );
$attachment_id = et_get_attachment_id_by_url( $attachment_src );
}
// 1.b. Generate attachment ID class.
if ( $attachment_id > 0 ) {
$attachment_class = "wp-image-{$attachment_id}";
}
return $attachment_class;
}
}