fast-down-gui 0.1.45

超级快的下载器图形化界面
Documentation 
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use crate::ui::{DialogType, DownloadConfig, TaskDialog};
use crate::utils::LogErr;
#[cfg(target_os = "macos")]
use i_slint_backend_winit::WinitWindowAccessor;
use rfd::FileDialog;
#[cfg(target_os = "macos")]
use slint::CloseRequestResponse;
use slint::{ComponentHandle, SharedString, ToSharedString};

/// 显示添加任务对话框
pub fn show_task_dialog(
    urls: SharedString,
    dialog_type: DialogType,
    config: DownloadConfig,
    show_bg_download: bool,
    on_confirm: impl FnOnce(SharedString, DownloadConfig, bool) + 'static,
) -> color_eyre::Result<()> {
    let dialog = TaskDialog::new()?;
    dialog.set_urls(urls);
    dialog.set_type(dialog_type);
    dialog.set_show_bg_download(show_bg_download);
    dialog.set_download_config(config);

    let dialog_weak = dialog.as_weak();

    #[cfg(not(target_os = "macos"))]
    let hide_dialog = move || {
        let _ = dialog_weak.upgrade_in_event_loop(|d| {
            let _ = d.hide().log_err("隐藏窗口失败");
        });
    };
    #[cfg(target_os = "macos")]
    // TaskDialog.hide 方法在有 TouchBar 的 MacBook Pro 机型上调用会 remove 不存在的 Observer 导致程序崩溃
    let hide_dialog = move || {
        let _ = dialog_weak.upgrade_in_event_loop(move |d| {
            let _ = slint::spawn_local(async move {
                if let Ok(window) = d
                    .window()
                    .winit_window()
                    .await
                    .log_err("隐藏窗口失败 - 获取窗口失败")
                {
                    window.set_visible(false);
                }
            })
            .log_err("隐藏窗口失败 - 执行任务失败");
        });
    };

    #[cfg(target_os = "macos")]
    {
        let hide_dialog_clone = hide_dialog.clone();
        dialog.window().on_close_requested(move || {
            hide_dialog_clone();
            // 返回保持展示仅是为了绕过 slint 内置的隐藏策略 窗体由 hide_dialog_clone 隐藏
            CloseRequestResponse::KeepWindowShown
        });
    }

    dialog.on_canceled(hide_dialog.clone());

    dialog.on_browse_folder({
        let dialog = dialog.as_weak();
        move || {
            let dialog = dialog.clone();
            std::thread::spawn(move || {
                if let Some(folder) = FileDialog::new().pick_folder() {
                    let _ = dialog.upgrade_in_event_loop(move |d| {
                        d.invoke_set_save_dir(folder.to_string_lossy().to_shared_string());
                    });
                }
            });
        }
    });

    let mut handle = Some(on_confirm);
    dialog.on_confirm(move |urls, config, bg_download| {
        hide_dialog();
        if let Some(h) = handle.take() {
            h(urls, config, bg_download);
        }
    });

    dialog.show()?;
    Ok(())
}