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<?php
/**
* The oEmbed field which allows users to enter oEmbed URLs.
*
* @package Meta Box
*/
/**
* OEmbed field class.
*/
class RWMB_OEmbed_Field extends RWMB_Text_Field {
/**
* Enqueue scripts and styles.
*/
public static function admin_enqueue_scripts() {
wp_enqueue_style( 'rwmb-oembed', RWMB_CSS_URL . 'oembed.css' );
wp_enqueue_script( 'rwmb-oembed', RWMB_JS_URL . 'oembed.js', array( 'jquery', 'underscore' ), RWMB_VER, true );
}
/**
* Add actions.
*/
public static function add_actions() {
add_action( 'wp_ajax_rwmb_get_embed', array( __CLASS__, 'wp_ajax_get_embed' ) );
}
/**
* Ajax callback for returning oEmbed HTML.
*/
public static function wp_ajax_get_embed() {
$url = (string) filter_input( INPUT_POST, 'url', FILTER_SANITIZE_URL );
wp_send_json_success( self::get_embed( $url ) );
}
/**
* Get embed html from url.
*
* @param string $url URL.
* @return string
*/
public static function get_embed( $url ) {
/**
* Set arguments for getting embeded HTML.
* Without arguments, default width will be taken from global $content_width, which can break UI in the admin.
*
* @link https://github.com/rilwis/meta-box/issues/801
* @see WP_oEmbed::fetch()
* @see WP_Embed::shortcode()
* @see wp_embed_defaults()
*/
$args = array();
if ( is_admin() ) {
$args['width'] = 360;
}
// Try oembed first.
$embed = wp_oembed_get( $url, $args );
// If no oembed provides found, try WordPress auto embed.
if ( ! $embed ) {
$embed = $GLOBALS['wp_embed']->shortcode( $args, $url );
}
return $embed ? $embed : __( 'Embed HTML not available.', 'meta-box' );
}
/**
* Get field HTML.
*
* @param mixed $meta Meta value.
* @param array $field Field parameters.
* @return string
*/
public static function html( $meta, $field ) {
return parent::html( $meta, $field ) . sprintf(
'<span class="spinner"></span>
<div class="rwmb-embed-media">%s</div>',
$meta ? self::get_embed( $meta ) : ''
);
}
/**
* Get the attributes for a field.
*
* @param array $field Field parameters.
* @param mixed $value Meta value.
*
* @return array
*/
public static function get_attributes( $field, $value = null ) {
$attributes = parent::get_attributes( $field, $value );
$attributes['type'] = 'url';
return $attributes;
}
/**
* Format a single value for the helper functions.
*
* @param array $field Field parameters.
* @param string $value Meta value.
* @return string
*/
public static function format_single_value( $field, $value ) {
return self::get_embed( $value );
}
}
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