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<?php
/***
* Base class for shortcodes.
*
* @since 2.0.9
*
* @package LearnDash\Course_Grid
*/
namespace LearnDash\Course_Grid\Shortcodes;
if ( ! defined( 'ABSPATH' ) ) {
exit();
}
/**
* Base class for shortcodes.
*
* @since 2.0.9
*/
abstract class Base {
/**
* Shortcode tag.
*
* @since 2.0.9
*
* @var string
*/
protected $tag;
/**
* Constructor.
*
* @since 2.0.9
*/
public function __construct() {
$this->register();
}
/**
* Register shortcode.
*
* @since 2.0.9
*
* @return void
*/
private function register() {
add_shortcode( $this->tag, [ $this, 'render' ] );
}
/**
* Render shortcode.
*
* @since 2.0.9
*
* @param array<string, string> $atts Shortcode attributes.
* @param string $content Shortcode content.
*
* @return string Shortcode output.
*/
abstract protected function render( $atts, $content );
/**
* Get default shortcode attributes.
*
* @since 2.0.9
*
* @return array<string, mixed>
*/
abstract protected function get_default_atts();
/**
* Validate attributes type.
*
* @since 2.0.9
*
* @param array $atts Attributes.
*
* @return array
*/
protected function validate_atts_type( array $atts ): array {
$default_atts = $this->get_default_atts();
foreach ( $default_atts as $key => $value ) {
$type = gettype( $value );
$value_type = gettype( $atts[ $key ] );
if ( $type !== $value_type ) {
switch ( $type ) {
case 'boolean':
$atts[ $key ] = 'true' === $atts[ $key ] || true === $atts[ $key ] || '1' === $atts[ $key ] || 1 === $atts[ $key ];
break;
case 'integer':
$atts[ $key ] = intval( $atts[ $key ] );
break;
case 'double':
$atts[ $key ] = floatval( $atts[ $key ] );
break;
}
}
}
return $atts;
}
/**
* Process attributes as HTML data attributes.
*
* @since 2.0.9
*
* @param array<string, mixed> $atts Attributes.
*
* @return string
*/
protected function process_attributes_as_html_attributes( array $atts = [] ): string {
$attributes = '';
foreach ( $atts as $key => $value ) {
if ( is_array( $value ) ) {
$value = implode( ',', $value );
}
$attributes .= ' data-' . $key . '="' . $value . '"';
}
return $attributes;
}
}