post_type ) {
		wp_die( __( 'Invalid post type.' ) );
	}
	switch ( $_REQUEST['fetch'] ) {
		case 3:
			?>
			
			 false,
					'delete' => true,
				)
			);
			break;
		default:
			add_filter( 'attachment_fields_to_edit', 'media_post_single_attachment_fields_to_edit', 10, 2 );
			echo get_media_item( $id );
			break;
	}
	exit;
}
check_admin_referer( 'media-form' );
$post_id = 0;
if ( isset( $_REQUEST['post_id'] ) ) {
	$post_id = absint( $_REQUEST['post_id'] );
	if ( ! get_post( $post_id ) || ! current_user_can( 'edit_post', $post_id ) ) {
		$post_id = 0;
	}
}
$id = media_handle_upload( 'async-upload', $post_id );
if ( is_wp_error( $id ) ) {
	$message = sprintf(
		'%s %s
%s',
		sprintf(
			'',
			__( 'Dismiss' )
		),
		sprintf(
			/* translators: %s: Name of the file that failed to upload. */
			__( '“%s” has failed to upload.' ),
			esc_html( $_FILES['async-upload']['name'] )
		),
		esc_html( $id->get_error_message() )
	);
	wp_admin_notice(
		$message,
		array(
			'additional_classes' => array( 'error-div', 'error' ),
			'paragraph_wrap'     => false,
		)
	);
	exit;
}
if ( $_REQUEST['short'] ) {
	// Short form response - attachment ID only.
	echo $id;
} else {
	// Long form response - big chunk of HTML.
	$type = $_REQUEST['type'];
	/**
	 * Filters the returned ID of an uploaded attachment.
	 *
	 * The dynamic portion of the hook name, `$type`, refers to the attachment type.
	 *
	 * Possible hook names include:
	 *
	 *  - `async_upload_audio`
	 *  - `async_upload_file`
	 *  - `async_upload_image`
	 *  - `async_upload_video`
	 *
	 * @since 2.5.0
	 *
	 * @param int $id Uploaded attachment ID.
	 */
	echo apply_filters( "async_upload_{$type}", $id );
}