class-image.php
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<?php
/**
* Image control.
*
* @package Block_Lab
* @copyright Copyright(c) 2020, Block Lab
* @license http://opensource.org/licenses/GPL-2.0 GNU General Public License, version 2 (GPL-2.0)
*/
namespace Block_Lab\Blocks\Controls;
/**
* Class Image
*/
class Image extends Control_Abstract {
/**
* Control name.
*
* @var string
*/
public $name = 'image';
/**
* Field variable type.
*
* @var string
*/
public $type = 'integer';
/**
* Text constructor.
*
* @return void
*/
public function __construct() {
parent::__construct();
$this->label = __( 'Image', 'block-lab' );
}
/**
* Register settings.
*
* @return void
*/
public function register_settings() {
foreach ( [ 'location', 'width', 'help' ] as $setting ) {
$this->settings[] = new Control_Setting( $this->settings_config[ $setting ] );
}
}
/**
* Validates the value to be made available to the front-end template.
*
* @param string $value The value to either make available as a variable or echoed on the front-end template.
* @param bool $echo Whether this value will be echoed.
* @return string|int $value The value to be made available or echoed on the front-end template, possibly 0 if none found.
*/
public function validate( $value, $echo ) {
$image_id = intval( $value );
// Backwards compatibility, as the value used to be the image's URL instead of its post ID.
if ( empty( $image_id ) && is_string( $value ) ) {
$legacy_src = $value;
$legacy_id = attachment_url_to_postid( $value );
}
if ( $echo ) {
if ( isset( $legacy_src ) ) {
return $legacy_src;
}
$image = wp_get_attachment_image_src( $image_id, 'full' );
return ! empty( $image[0] ) ? $image[0] : '';
} else {
return isset( $legacy_id ) ? $legacy_id : $image_id;
}
}
}