_wp_get_site_editor_redirection_url(): string|false

Source

function _wp_get_site_editor_redirection_url() {
	global $pagenow;
	if ( 'site-editor.php' !== $pagenow || isset( $_REQUEST['p'] ) || empty( $_SERVER['QUERY_STRING'] ) ) {
		return false;
	}

	// The following redirects are for the new permalinks in the site editor.
	if ( isset( $_REQUEST['postType'] ) && 'wp_navigation' === $_REQUEST['postType'] && ! empty( $_REQUEST['postId'] ) ) {
		return add_query_arg( array( 'p' => '/wp_navigation/' . $_REQUEST['postId'] ), remove_query_arg( array( 'postType', 'postId' ) ) );
	}

	if ( isset( $_REQUEST['postType'] ) && 'wp_navigation' === $_REQUEST['postType'] && empty( $_REQUEST['postId'] ) ) {
		return add_query_arg( array( 'p' => '/navigation' ), remove_query_arg( 'postType' ) );
	}

	if ( isset( $_REQUEST['path'] ) && '/wp_global_styles' === $_REQUEST['path'] ) {
		return add_query_arg( array( 'p' => '/styles' ), remove_query_arg( 'path' ) );
	}

	if ( isset( $_REQUEST['postType'] ) && 'page' === $_REQUEST['postType'] && ( empty( $_REQUEST['canvas'] ) || empty( $_REQUEST['postId'] ) ) ) {
		return add_query_arg( array( 'p' => '/page' ), remove_query_arg( 'postType' ) );
	}

	if ( isset( $_REQUEST['postType'] ) && 'page' === $_REQUEST['postType'] && ! empty( $_REQUEST['postId'] ) ) {
		return add_query_arg( array( 'p' => '/page/' . $_REQUEST['postId'] ), remove_query_arg( array( 'postType', 'postId' ) ) );
	}

	if ( isset( $_REQUEST['postType'] ) && 'wp_template' === $_REQUEST['postType'] && ( empty( $_REQUEST['canvas'] ) || empty( $_REQUEST['postId'] ) ) ) {
		return add_query_arg( array( 'p' => '/template' ), remove_query_arg( 'postType' ) );
	}

	if ( isset( $_REQUEST['postType'] ) && 'wp_template' === $_REQUEST['postType'] && ! empty( $_REQUEST['postId'] ) ) {
		return add_query_arg( array( 'p' => '/wp_template/' . $_REQUEST['postId'] ), remove_query_arg( array( 'postType', 'postId' ) ) );
	}

	if ( isset( $_REQUEST['postType'] ) && 'wp_block' === $_REQUEST['postType'] && ( empty( $_REQUEST['canvas'] ) || empty( $_REQUEST['postId'] ) ) ) {
		return add_query_arg( array( 'p' => '/pattern' ), remove_query_arg( 'postType' ) );
	}

	if ( isset( $_REQUEST['postType'] ) && 'wp_block' === $_REQUEST['postType'] && ! empty( $_REQUEST['postId'] ) ) {
		return add_query_arg( array( 'p' => '/wp_block/' . $_REQUEST['postId'] ), remove_query_arg( array( 'postType', 'postId' ) ) );
	}

	if ( isset( $_REQUEST['postType'] ) && 'wp_template_part' === $_REQUEST['postType'] && ( empty( $_REQUEST['canvas'] ) || empty( $_REQUEST['postId'] ) ) ) {
		return add_query_arg( array( 'p' => '/pattern' ) );
	}

	if ( isset( $_REQUEST['postType'] ) && 'wp_template_part' === $_REQUEST['postType'] && ! empty( $_REQUEST['postId'] ) ) {
		return add_query_arg( array( 'p' => '/wp_template_part/' . $_REQUEST['postId'] ), remove_query_arg( array( 'postType', 'postId' ) ) );
	}

	// The following redirects are for backward compatibility with the old site editor URLs.
	if ( isset( $_REQUEST['path'] ) && '/wp_template_part/all' === $_REQUEST['path'] ) {
		return add_query_arg(
			array(
				'p'        => '/pattern',
				'postType' => 'wp_template_part',
			),
			remove_query_arg( 'path' )
		);
	}

	if ( isset( $_REQUEST['path'] ) && '/page' === $_REQUEST['path'] ) {
		return add_query_arg( array( 'p' => '/page' ), remove_query_arg( 'path' ) );
	}

	if ( isset( $_REQUEST['path'] ) && '/wp_template' === $_REQUEST['path'] ) {
		return add_query_arg( array( 'p' => '/template' ), remove_query_arg( 'path' ) );
	}

	if ( isset( $_REQUEST['path'] ) && '/patterns' === $_REQUEST['path'] ) {
		return add_query_arg( array( 'p' => '/pattern' ), remove_query_arg( 'path' ) );
	}

	if ( isset( $_REQUEST['path'] ) && '/navigation' === $_REQUEST['path'] ) {
		return add_query_arg( array( 'p' => '/navigation' ), remove_query_arg( 'path' ) );
	}

	return add_query_arg( array( 'p' => '/' ) );
}

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