showSaveFilePicker static method

Prompts the user to select a file to save to using window.showSaveFilePicker() (File System Access API) and returns the resulting FileSystemOpfsWebFileHandle, suitable for withFileHandles.

The file is created empty if it does not exist yet, and the returned handle is granted readwrite permission.

See FileSystemOpfsWebShowSaveFilePickerOptions for the available options (id, startIn, suggestedName, excludeAcceptAllOption, types).

Chromium-only, must be called from a user gesture. Throws if the user cancels the picker or if the browser does not support it.

Only available on the web.

Implementation

static Future<FileSystemOpfsWebFileHandle> showSaveFilePicker([
  FileSystemOpfsWebShowSaveFilePickerOptions? options,
]) => fileSystemOpfsWebShowSaveFilePickerImpl(options);