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// Take a look at the license at the top of the repository in the LICENSE file. use crate::prelude::*; use crate::Dialog; use crate::DialogFlags; use crate::ResponseType; use crate::Widget; use crate::Window; use glib::translate::*; use std::cell::Cell; use std::future::Future; use std::pin::Pin; use std::ptr; impl Dialog { /// Creates a new [`Dialog`][crate::Dialog] with title `title` (or [`None`] for the default /// title; see [`GtkWindowExt::set_title()`][crate::prelude::GtkWindowExt::set_title()]) and transient parent `parent` (or /// [`None`] for none; see [`GtkWindowExt::set_transient_for()`][crate::prelude::GtkWindowExt::set_transient_for()]). The `flags` /// argument can be used to make the dialog modal ([`DialogFlags::MODAL`][crate::DialogFlags::MODAL]) /// and/or to have it destroyed along with its transient parent /// ([`DialogFlags::DESTROY_WITH_PARENT`][crate::DialogFlags::DESTROY_WITH_PARENT]). After `flags`, button /// text/response ID pairs should be listed, with a [`None`] pointer ending /// the list. Button text can be arbitrary text. A response ID can be /// any positive number, or one of the values in the [`ResponseType`][crate::ResponseType] /// enumeration. If the user clicks one of these dialog buttons, /// [`Dialog`][crate::Dialog] will emit the `signal::Dialog::response` signal with the corresponding /// response ID. If a [`Dialog`][crate::Dialog] receives the `signal::Widget::delete-event` signal, /// it will emit ::response with a response ID of [`ResponseType::DeleteEvent`][crate::ResponseType::DeleteEvent]. /// However, destroying a dialog does not emit the ::response signal; /// so be careful relying on ::response when using the /// [`DialogFlags::DESTROY_WITH_PARENT`][crate::DialogFlags::DESTROY_WITH_PARENT] flag. Buttons are from left to right, /// so the first button in the list will be the leftmost button in the dialog. /// /// Here’s a simple example: /// /// /// **⚠️ The following code is in C ⚠️** /// /// ```C /// GtkWidget *main_app_window; // Window the dialog should show up on /// GtkWidget *dialog; /// GtkDialogFlags flags = GTK_DIALOG_MODAL | GTK_DIALOG_DESTROY_WITH_PARENT; /// dialog = gtk_dialog_new_with_buttons ("My dialog", /// main_app_window, /// flags, /// _("_OK"), /// GTK_RESPONSE_ACCEPT, /// _("_Cancel"), /// GTK_RESPONSE_REJECT, /// NULL); /// ``` /// ## `title` /// Title of the dialog, or [`None`] /// ## `parent` /// Transient parent of the dialog, or [`None`] /// ## `flags` /// from [`DialogFlags`][crate::DialogFlags] /// ## `first_button_text` /// text to go in first button, or [`None`] /// /// # Returns /// /// a new [`Dialog`][crate::Dialog] #[doc(alias = "gtk_dialog_new_with_buttons")] pub fn with_buttons<T: IsA<Window>>( title: Option<&str>, parent: Option<&T>, flags: DialogFlags, buttons: &[(&str, ResponseType)], ) -> Dialog { assert_initialized_main_thread!(); let ret: Dialog = unsafe { Widget::from_glib_none(ffi::gtk_dialog_new_with_buttons( title.to_glib_none().0, parent.map(|p| p.as_ref()).to_glib_none().0, flags.into_glib(), ptr::null_mut(), )) .unsafe_cast() }; ret.add_buttons(buttons); ret } } pub trait DialogExtManual: 'static { #[doc(alias = "gtk_dialog_add_buttons")] fn add_buttons(&self, buttons: &[(&str, ResponseType)]); // rustdoc-stripper-ignore-next /// Shows the dialog and returns a `Future` that resolves to the /// `ResponseType` on response. /// /// ```no_run /// use gtk::prelude::*; /// /// # async fn run() { /// let dialog = gtk::MessageDialogBuilder::new() /// .buttons(gtk::ButtonsType::OkCancel) /// .text("What is your answer?") /// .build(); /// /// let answer = dialog.run_future().await; /// dialog.close(); /// println!("Answer: {:?}", answer); /// # } /// ``` fn run_future<'a>(&'a self) -> Pin<Box<dyn Future<Output = ResponseType> + 'a>>; } impl<O: IsA<Dialog> + IsA<Widget>> DialogExtManual for O { fn add_buttons(&self, buttons: &[(&str, ResponseType)]) { for &(text, id) in buttons { //FIXME: self.add_button don't work on 1.8 O::add_button(self, text, id); } } fn run_future<'a>(&'a self) -> Pin<Box<dyn Future<Output = ResponseType> + 'a>> { Box::pin(async move { let (sender, receiver) = futures_channel::oneshot::channel(); let sender = Cell::new(Some(sender)); let response_handler = self.connect_response(move |_, response_type| { if let Some(m) = sender.replace(None) { let _result = m.send(response_type); } }); self.show(); if let Ok(response) = receiver.await { if response != ResponseType::DeleteEvent { self.disconnect(response_handler); } response } else { ResponseType::None } }) } }