livecodes-embed.php

<?php
/**
 * Plugin Name:       LiveCodes Embed
 * Plugin URI:        https://livecodes.io/docs/features/embeds
 * Description:       Embed LiveCodes playgrounds in posts and pages by pasting a URL.
 * Version:           1.0.0
 * Requires at least: 5.6
 * Requires PHP:      7.2
 * Author:            LiveCodes
 * Author URI:        https://livecodes.io
 * License:           MIT
 * License URI:       https://github.com/live-codes/wordpress-livecodes-embed/blob/main/LICENSE
 * Donate link:       https://ko-fi.com/hatemhosny
 * Text Domain:       livecodes-embed
 */

defined( 'ABSPATH' ) || exit;

define( 'LIVECODES_EMBED_VERSION', '1.0.0' );

/**
 * Register livecodes.io as a trusted oEmbed provider.
 */
function livecodes_embed_register_provider() {
	/**
	 * Filter the URL pattern matched for LiveCodes embeds.
	 *
	 * Useful for self-hosted LiveCodes instances.
	 *
	 * @param string $pattern Regex (with delimiters) matched against pasted URLs.
	 */
	$pattern = apply_filters(
		'livecodes_embed_url_pattern',
		'!^https?://(?:[a-z0-9\-]+\.)?livecodes\.io/?(?:index\.html)?(?:\?[^#]*)?(?:#.*)?$!i'
	);

	/**
	 * Filter the oEmbed endpoint used to resolve LiveCodes URLs.
	 *
	 * Useful for self-hosted LiveCodes instances (the docker setup ships
	 * its own oEmbed server).
	 *
	 * @param string $endpoint The oEmbed API endpoint URL.
	 */
	$endpoint = apply_filters(
		'livecodes_embed_provider_endpoint',
		'https://livecodes.io/oembed'
	);

	wp_oembed_add_provider( $pattern, $endpoint, true );
}
add_action( 'init', 'livecodes_embed_register_provider' );

/**
 * Register the editor script that adds a "LiveCodes" variation of the
 * core Embed block to the inserter. Purely cosmetic: paste-to-embed
 * works from the provider registration alone.
 */
function livecodes_embed_enqueue_editor_assets() {
	wp_enqueue_script(
		'livecodes-embed-editor',
		plugins_url( 'editor.js', __FILE__ ),
		array( 'wp-blocks', 'wp-element', 'wp-i18n' ),
		LIVECODES_EMBED_VERSION,
		true
	);

	wp_set_script_translations( 'livecodes-embed-editor', 'livecodes-embed' );
}
add_action( 'enqueue_block_editor_assets', 'livecodes_embed_enqueue_editor_assets' );