Function SaveDocumentAs 

pub fn SaveDocumentAs(
    OriginalURI: Url,
    NewTargetURI: Option<Url>,
) -> ActionEffect<Arc<dyn DocumentProvider>, CommonError, Option<Url>>

Creates an effect that, when executed, will save a document to a new location. This is typically used for “Save As…” functionality.

It uses the DocumentProvider capability from the environment to perform the operation. If NewTargetURI is None, the provider is expected to interact with the user (via the UserInterfaceProvider) to prompt for a new save location.

Parameters

• OriginalURI: The Url of the document to save.
• NewTargetURI: An optional Url for the new save location. If None, a save dialog should be shown to the user.

Returns

An ActionEffect that resolves with an Option<Url>, containing the final Url of the saved file or None if the operation was cancelled.