'. __( 'Please Try Again', 'virtue-toolkit' ) .'', false );
// Set width of embed
$embed_width = isset( $_REQUEST['oembed_width'] ) && intval( $_REQUEST['oembed_width'] ) < 640 ? intval( $_REQUEST['oembed_width'] ) : '640';
// set url
$oembed_url = esc_url( $oembed_string );
// set args
$embed_args = array( 'width' => $embed_width );
// Get embed code (or fallback link)
$html = self::get_oembed( $oembed_url, $_REQUEST['object_id'], array(
'object_type' => isset( $_REQUEST['object_type'] ) ? $_REQUEST['object_type'] : 'post',
'oembed_args' => $embed_args,
'field_id' => $_REQUEST['field_id'],
) );
self::send_result( $html );
}
/**
* Retrieves oEmbed from url/object ID
* @since 0.9.5
* @param string $url URL to retrieve oEmbed
* @param int $object_id Object ID
* @param array $args Arguments for method
* @return string html markup with embed or fallback
*/
public static function get_oembed( $url, $object_id, $args = array() ) {
global $wp_embed;
$oembed_url = esc_url( $url );
// Sanitize object_id
self::$object_id = is_numeric( $object_id ) ? absint( $object_id ) : sanitize_text_field( $object_id );
$args = wp_parse_args( $args, array(
'object_type' => 'post',
'oembed_args' => self::$embed_args,
'field_id' => false,
'cache_key' => false,
) );
self::$embed_args =& $args;
// set the post_ID so oEmbed won't fail
// wp-includes/class-wp-embed.php, WP_Embed::shortcode(), line 162
$wp_embed->post_ID = self::$object_id;
// Special scenario if NOT a post object
if ( isset( $args['object_type'] ) && $args['object_type'] != 'post' ) {
if ( 'options-page' == $args['object_type'] ) {
// bogus id to pass some numeric checks
// Issue with a VERY large WP install?
$wp_embed->post_ID = 1987645321;
// Use our own cache key to correspond to this field (vs one cache key per url)
$args['cache_key'] = $args['field_id'] .'_cache';
}
// Ok, we need to hijack the oembed cache system
self::$hijack = true;
self::$object_type = $args['object_type'];
// Gets ombed cache from our object's meta (vs postmeta)
add_filter( 'get_post_metadata', array( 'cmb_Meta_Box_ajax', 'hijack_oembed_cache_get' ), 10, 3 );
// Sets ombed cache in our object's meta (vs postmeta)
add_filter( 'update_post_metadata', array( 'cmb_Meta_Box_ajax', 'hijack_oembed_cache_set' ), 10, 4 );
}
$embed_args = '';
foreach ( $args['oembed_args'] as $key => $val ) {
$embed_args .= " $key=\"$val\"";
}
// ping WordPress for an embed
$check_embed = $wp_embed->run_shortcode( '[embed'. $embed_args .']'. $oembed_url .'[/embed]' );
// fallback that WordPress creates when no oEmbed was found
$fallback = $wp_embed->maybe_make_link( $oembed_url );
// Send back our embed
if ( $check_embed && $check_embed != $fallback )
return '';
// Otherwise, send back error info that no oEmbeds were found
return ''. sprintf( __( 'No oEmbed Results Found for %s. View more info at', 'virtue-toolkit' ), $fallback ) .' codex.wordpress.org/Embeds.
';
}
/**
* Hijacks retrieving of cached oEmbed.
* Returns cached data from relevant object metadata (vs postmeta)
*
* @since 0.9.5
* @param boolean $check Whether to retrieve postmeta or override
* @param int $object_id Object ID
* @param string $meta_key Object metakey
* @return mixed Object's oEmbed cached data
*/
public static function hijack_oembed_cache_get( $check, $object_id, $meta_key ) {
if ( ! self::$hijack || ( self::$object_id != $object_id && 1987645321 !== $object_id ) )
return $check;
// get cached data
$data = 'options-page' === self::$object_type
? cmb_Meta_Box::get_option( self::$object_id, self::$embed_args['cache_key'] )
: get_metadata( self::$object_type, self::$object_id, $meta_key, true );
return $data;
}
/**
* Hijacks saving of cached oEmbed.
* Saves cached data to relevant object metadata (vs postmeta)
*
* @since 0.9.5
* @param boolean $check Whether to continue setting postmeta
* @param int $object_id Object ID to get postmeta from
* @param string $meta_key Postmeta's key
* @param mixed $meta_value Value of the postmeta to be saved
* @return boolean Whether to continue setting
*/
public static function hijack_oembed_cache_set( $check, $object_id, $meta_key, $meta_value ) {
if ( ! self::$hijack || ( self::$object_id != $object_id && 1987645321 !== $object_id ) )
return $check;
// Cache the result to our metadata
if ( 'options-page' === self::$object_type ) {
// Set the option
cmb_Meta_Box::update_option( self::$object_id, self::$embed_args['cache_key'], $meta_value, array( 'type' => 'oembed' ) );
// Save the option
cmb_Meta_Box::save_option( self::$object_id );
} else {
update_metadata( self::$object_type, self::$object_id, $meta_key, $meta_value );
}
// Anything other than `null` to cancel saving to postmeta
return true;
}
/**
* Helper to send json encoded response to ajax
* @since 0.9.5
* @param string $data Data to be shown via ajax
* @param boolean $success Success or fail
*/
public static function send_result( $data, $success = true ) {
$found = $success ? 'found' : 'not found';
// send back our encoded data
echo json_encode( array( 'result' => $data, 'id' => $found ) );
die();
}
}