_get_block_templates_files( string $template_type, array $query = array() ): array

Source

function _get_block_templates_files( $template_type, $query = array() ) {
	if ( 'wp_template' !== $template_type && 'wp_template_part' !== $template_type ) {
		return null;
	}

	// Prepare metadata from $query.
	$slugs_to_include = isset( $query['slug__in'] ) ? $query['slug__in'] : array();
	$slugs_to_skip    = isset( $query['slug__not_in'] ) ? $query['slug__not_in'] : array();
	$area             = isset( $query['area'] ) ? $query['area'] : null;
	$post_type        = isset( $query['post_type'] ) ? $query['post_type'] : '';

	$stylesheet = get_stylesheet();
	$template   = get_template();
	$themes     = array(
		$stylesheet => get_stylesheet_directory(),
	);
	// Add the parent theme if it's not the same as the current theme.
	if ( $stylesheet !== $template ) {
		$themes[ $template ] = get_template_directory();
	}
	$template_files = array();
	foreach ( $themes as $theme_slug => $theme_dir ) {
		$template_base_paths  = get_block_theme_folders( $theme_slug );
		$theme_template_files = _get_block_templates_paths( $theme_dir . '/' . $template_base_paths[ $template_type ] );
		foreach ( $theme_template_files as $template_file ) {
			$template_base_path = $template_base_paths[ $template_type ];
			$template_slug      = substr(
				$template_file,
				// Starting position of slug.
				strpos( $template_file, $template_base_path . DIRECTORY_SEPARATOR ) + 1 + strlen( $template_base_path ),
				// Subtract ending '.html'.
				-5
			);

			// Skip this item if its slug doesn't match any of the slugs to include.
			if ( ! empty( $slugs_to_include ) && ! in_array( $template_slug, $slugs_to_include, true ) ) {
				continue;
			}

			// Skip this item if its slug matches any of the slugs to skip.
			if ( ! empty( $slugs_to_skip ) && in_array( $template_slug, $slugs_to_skip, true ) ) {
				continue;
			}

			/*
			 * The child theme items (stylesheet) are processed before the parent theme's (template).
			 * If a child theme defines a template, prevent the parent template from being added to the list as well.
			 */
			if ( isset( $template_files[ $template_slug ] ) ) {
				continue;
			}

			$new_template_item = array(
				'slug'  => $template_slug,
				'path'  => $template_file,
				'theme' => $theme_slug,
				'type'  => $template_type,
			);

			if ( 'wp_template_part' === $template_type ) {
				$candidate = _add_block_template_part_area_info( $new_template_item );
				if ( ! isset( $area ) || ( isset( $area ) && $area === $candidate['area'] ) ) {
					$template_files[ $template_slug ] = $candidate;
				}
			}

			if ( 'wp_template' === $template_type ) {
				$candidate = _add_block_template_info( $new_template_item );
				if (
					! $post_type ||
					( $post_type && isset( $candidate['postTypes'] ) && in_array( $post_type, $candidate['postTypes'], true ) )
				) {
					$template_files[ $template_slug ] = $candidate;
				}
			}
		}
	}

	return array_values( $template_files );
}

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