Function show_main_window

src/apps/desktop/src/theme.rs:1008–1069

(app: tauri::AppHandle)

#[tauri::command]
pub async fn show_main_window(app: tauri::AppHandle) -> Result<(), String> {
    let total_started_at = Instant::now();
    if let Some(main_window) = app.get_webview_window("main") {
        #[cfg(target_os = "windows")]
        {
            // Work around Windows startup flicker: avoid creating the native window
            // in maximized mode, and maximize it right before showing instead.
            let step_started_at = Instant::now();
            main_window.maximize().map_err(|e| {
                error!("Failed to maximize main window: {}", e);
                format!("Failed to maximize main window: {}", e)
            })?;
            debug!(
                "Main window show step completed: step=maximize duration_ms={}",
                step_started_at.elapsed().as_millis()
            );

            let wait_started_at = Instant::now();
            let show_wait_outcome = wait_for_windows_maximize_before_show_async(&main_window).await;
            debug!(
                "Main window show step completed: step=wait_for_maximize_state outcome={} duration_ms={}",
                show_wait_outcome,
                wait_started_at.elapsed().as_millis()
            );
        }

        let step_started_at = Instant::now();
        main_window.show().map_err(|e| {
            error!("Failed to show main window: {}", e);
            format!("Failed to show main window: {}", e)
        })?;
        debug!(
            "Main window show step completed: step=show duration_ms={}",
            step_started_at.elapsed().as_millis()
        );

        #[cfg(target_os = "macos")]
        {
            crate::cancel_main_window_close_request_on_macos();
            crate::mark_main_window_hidden_on_macos(false);
        }

        let step_started_at = Instant::now();
        main_window.set_focus().map_err(|e| {
            error!("Failed to focus main window: {}", e);
            format!("Failed to focus main window: {}", e)
        })?;
        debug!(
            "Main window show step completed: step=focus duration_ms={}",
            step_started_at.elapsed().as_millis()
        );
    } else {
        error!("Main window not found");
        return Err("Main window not found".to_string());
    }

    debug!(
        "Main window shown: total_duration_ms={}",