Struct MemoryFiles 

pub struct MemoryFiles { /* private fields */ }

A file system held in memory, for fixtures, demos, and tests. It lists a directory the application named, in the order of LocalFiles, fails with ListError::NotFound for any other directory, and makes folders: a new one shows in its parent’s next listing and is an empty directory itself. Clones share the directories.

Implementations

impl MemoryFiles

pub fn new() -> Self

A file system with no directories.

pub fn with_style(self, style: PathStyle) -> Self

Writes the paths of the directories in style. Set it before the home and the directories. The default is the host’s style.

pub fn with_home(self, home: impl AsRef<str>) -> Self

Sets the home folder, which ~ stands for.

pub fn with_dir( self, path: impl AsRef<str>, entries: impl IntoIterator<Item = FileEntry>, ) -> Self

Adds the directory path with entries.

Trait Implementations

impl Clone for MemoryFiles

fn clone(&self) -> Self

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for MemoryFiles

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Default for MemoryFiles

fn default() -> Self

Returns the “default value” for a type.

impl FileSource for MemoryFiles

fn home(&self) -> Option<SourcePath>

The source’s home folder, which a leading ~ in the typed path stands for and where a picker with no start of its own begins. The default is None: a source with no home does not expand ~, and the picker starts at the root. A remote or virtual source gives its own, made with path_style.

fn path_style(&self) -> PathStyle

How the source writes its paths. The default is the style of the machine the application runs on. A source for another machine names its own: a Linux server is PathStyle::posix whatever the client is.

fn list( &self, dir: &SourcePath, _page: Option<PageToken>, cx: &mut App, ) -> Task<Result<FilePage, ListError>>

Lists the entries of dir, from the start when page is None, or else from the page token a previous page named. An entry whose name is empty, . or .., or has a separator of the source’s style or a control character is dropped by the picker.

fn can_create_folders(&self) -> bool

Whether the source can make folders. The default is false, which hides the picker’s “New folder” button.

fn create_folder( &self, parent: &SourcePath, name: &str, _: &mut App, ) -> Task<Result<SourcePath, CreateFolderError>>

Makes the folder name inside parent and answers with its path. The picker has checked name already: it is not empty, has no separator, and is not . or ... Answer CreateFolderError::Exists when something has that name. The picker lists the directory again afterward, so the new folder shows in the order the source lists. The default answers CreateFolderError::Unsupported.

fn env(&self, name: &str) -> Option<String>

The value of the variable name, for %NAME% in a Windows-style path that is pasted. The default knows none: a remote source never reads the host’s environment.