FileSystemFileHandle extension type

The FileSystemFileHandle interface of the File System API represents a handle to a file system entry. The interface is accessed through the window.showOpenFilePicker method.

Note that read and write operations depend on file-access permissions that do not persist after a page refresh if no other tabs for that origin remain open. The FileSystemHandle.queryPermission method of the FileSystemHandle interface can be used to verify permission state before accessing a file.

on
Implemented types
Available extensions

Properties

hashCode → int
The hash code for this object.
no setterinherited
kind → FileSystemHandleKind
no setterinherited
name → String
no setterinherited
runtimeType → Type
A representation of the runtime type of the object.
no setterinherited

Methods

createSyncAccessHandle() → JSPromise<FileSystemSyncAccessHandle>
The createSyncAccessHandle() method of the FileSystemFileHandle interface returns a Promise which resolves to a FileSystemSyncAccessHandle object that can be used to synchronously read from and write to a file. The synchronous nature of this method brings performance advantages, but it is only usable inside dedicated Web Workers for files within the origin private file system.
createWritable([FileSystemCreateWritableOptions options]) → JSPromise<FileSystemWritableFileStream>
The createWritable() method of the FileSystemFileHandle interface creates a FileSystemWritableFileStream that can be used to write to a file. The method returns a Promise which resolves to this created stream.
getFile() → JSPromise<File>
The getFile() method of the FileSystemFileHandle interface returns a Promise which resolves to a File object representing the state on disk of the entry represented by the handle.
isSameEntry(FileSystemHandle other) → JSPromise<JSBoolean>
The isSameEntry() method of the FileSystemHandle interface compares two FileSystemHandle to see if the associated entries (either a file or directory) match.
inherited
noSuchMethod(Invocation invocation) → dynamic
Invoked when a nonexistent method or property is accessed.
inherited
toString() → String
A string representation of this object.
inherited

Operators

operator ==(Object other) → bool
The equality operator.
inherited