[bug] `FileDialogBuilder::set_parent` not working on macOS

[probablykasper]

Describe the bug

set_parent does not seem to work on macOS. When it's used, the file dialog should be attached to the window, like in the rfd winit example:

Reproduction

#[tauri::command]
pub async fn open(win: tauri::Window) -> Result<(), String> {
  let mut d =  tauri::api::dialog::FileDialogBuilder::new().set_parent(&win);
  let (sender, receiver) = std::sync::mpsc::channel();
  d.pick_file(move |p| {
    sender.send(p).unwrap();
  });
  let file_path = match receiver.recv().unwrap_or_default() {
    Some(p) => p,
    None => return Ok(()),
  };
  println!("file_path {:?}", file_path);
  Ok(())
}

Expected behavior

No response

Platform and versions

Operating System - Mac OS, version 10.15.7 X64

Node.js environment
  Node.js - 16.13.1
  @tauri-apps/cli - 1.0.0-beta.10
  @tauri-apps/api - 1.0.0-beta.8

Global packages
  npm - 8.1.2
  yarn - 1.22.17

Rust environment
  rustc - 1.58.0
  cargo - 1.58.0

App directory structure
/node_modules
/public
/src-tauri
/build
/.git
/src

App
  tauri.rs - 1.0.0-beta.8
  build-type - bundle
  CSP - default-src blob: data: filesystem: ws: wss: http: https: tauri: 'unsafe-eval' 'unsafe-inline' 'self' img-src: 'self'
  distDir - ../build
  devPath - http://localhost:5000
  framework - Svelte

Stack trace

No response

Additional context

No response

[probablykasper]

Seems like it works in rfd for AsyncFileDialog, but not for FileDialog which Tauri uses

[probablykasper]

Opened PolyMeilex/rfd#53

Is there any reason why Tauri isn't using AsyncFileDialog?

[m11m]

It kind of looks like you'd need to use AsyncFileDialog to get "sheet" behavior...

or maybe rfd would have to handle the async stuff in some sync wrapper?

The AsyncFileDialog uses https://developer.apple.com/documentation/appkit/nssavepanel/1535870-beginsheetmodalforwindow/ which seems async to me (takes completion handler parameter) ?