Struct FileDialogHandle 

pub struct FileDialogHandle { /* private fields */ }

Per-app file-dialog service. Registered in app-state by TeksiloAppBuilder::install_file_dialog; reachable from any handler via ctx.app_state::<FileDialogHandle>(). Cloneable; clones share the same backend and pending-callbacks map.

Implementations

impl FileDialogHandle

pub fn new<B: FileDialogBackend + 'static>(backend: B) -> Self

Build a handle wrapping the given backend.

pub fn submit( &self, window_id: TeksiloWindowId, request: FileDialogRequest, poster: Arc<dyn AppEventPoster>, on_result: impl FnOnce(FileDialogResult, &mut EventContext<'_>) + 'static, ) -> Result<RequestId, String>

Submit a request. Validates the request, registers the callback, and asks the backend to dispatch.

on_result runs on the main thread when the OS dialog completes, or is dropped if window_id’s window closes first (Self::purge_window).

Returns the RequestId for diagnostics; the caller does not need to track it for the result to be delivered.

pub fn deliver( &self, payload: FileDialogEventPayload, ctx: &mut EventContext<'_>, )

Deliver a backend-completed payload to its pending callback. Called by teksilo-app from the AppEvent::External arm. If the callback was already purged (window closed), the payload is silently dropped.

pub fn purge_window(&self, window_id: TeksiloWindowId)

Drop every pending callback whose owning window matches window_id. Called by teksilo-app’s window-close path so callbacks capturing widget state cannot fire into a torn-down tree.

pub fn pending_count(&self) -> usize

Number of pending callbacks. Test helper.

Trait Implementations

impl Clone for FileDialogHandle

fn clone(&self) -> FileDialogHandle

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for FileDialogHandle

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

Formats the value using the given formatter.