<?php

/**

 * Aria label block support flag.

 *

 * @package WordPress

 * @since 6.8.0

 */

/**

 * Registers the aria-label block attribute for block types that support it.

 *

 * @since 6.8.0

 * @access private

 *

 * @param WP_Block_Type $block_type Block Type.

 */

function wp_register_aria_label_support( $block_type ) {

	$has_aria_label_support = block_has_support( $block_type, array( 'ariaLabel' ), false );

	if ( ! $has_aria_label_support ) {

		return;

	}

	if ( ! $block_type->attributes ) {

		$block_type->attributes = array();

	}

	if ( ! array_key_exists( 'ariaLabel', $block_type->attributes ) ) {

		$block_type->attributes['ariaLabel'] = array(

			'type' => 'string',

		);

	}

}

/**

 * Add the aria-label to the output.

 *

 * @since 6.8.0

 * @access private

 *

 * @param WP_Block_Type $block_type       Block Type.

 * @param array         $block_attributes Block attributes.

 *

 * @return array Block aria-label.

 */

function wp_apply_aria_label_support( $block_type, $block_attributes ) {

	if ( ! $block_attributes ) {

		return array();

	}

	$has_aria_label_support = block_has_support( $block_type, array( 'ariaLabel' ), false );

	if ( ! $has_aria_label_support ) {

		return array();

	}

	$has_aria_label = array_key_exists( 'ariaLabel', $block_attributes );

	if ( ! $has_aria_label ) {

		return array();

	}

	return array( 'aria-label' => $block_attributes['ariaLabel'] );

}

// Register the block support.

WP_Block_Supports::get_instance()->register(

	'aria-label',

	array(

		'register_attribute' => 'wp_register_aria_label_support',

		'apply'              => 'wp_apply_aria_label_support',

	)

);