[window-state] Window titlebar disappears when calling restore_state() before save_window_state()

[takashikawanaka]

Prerequisite

Change the tauri.bundle.identifier in tauri.conf.json to avoid loading another .window-state.

What I did

• yarn create tauri-app
• Add tauri-plugin-window-state
• Add Rust Code

main.rs

// Prevents additional console window on Windows in release, DO NOT REMOVE!!
#![cfg_attr(not(debug_assertions), windows_subsystem = "windows")]

use tauri::App;
use tauri::Manager;
use tauri_plugin_window_state::{AppHandleExt, StateFlags, WindowExt};

// Learn more about Tauri commands at https://tauri.app/v1/guides/features/command
#[tauri::command]
fn greet(name: &str) -> String {
    format!("Hello, {}! You've been greeted from Rust!", name)
}

fn main() {
    tauri::Builder::default()
        .plugin(tauri_plugin_window_state::Builder::default().build())
        .setup(|app: &mut App| {
            let window = app.get_window("main").unwrap();
            let result = window.restore_state(StateFlags::all());
            if let Err(e) = result {
                eprintln!("{}", e);
            }
            let result = app.handle().save_window_state(StateFlags::default());
            if let Err(e) = result {
                eprintln!("{}", e);
            }
            Ok(())
        })
        .invoke_handler(tauri::generate_handler![greet])
        .run(tauri::generate_context!())
        .expect("error while running tauri application");
}