mixincamembert::NavItemBuildercamembert::NavItemBuilderNavItemBuilderexpandDirsSourcevirtual Str[] expandDirs()expandDirsWithSourcevirtual Str[] expandDirsWith()forDirSourceabstract Item forDir(File f, Str path, Int indent, Bool collapsed)forFileSourceabstract Item forFile(File f, Str path, Int indent)forProjSourceabstract Item forProj(Project prj, Str path, Int indent)iconSourcevirtual Image? icon()Root item iconspaceSourceabstract Space space