Popups in popups

[BennD]

I have a simple popup to set target ips, in which i have a ComboBox to select the network interface.
This sadly does not work, because as far as i can see, egui does not support multiple popups at the same time.

Is this intended or is this something that is gonna change?

[BennD]

For now i fixed it by making it user-unfriendly and letting the user cycle through the available interfaces / addresses.

[YgorSouza]

It is intentional, or at least it is documented.

One workaround is to use a Window:

struct MyApp {
    name: String,
    age: u32,
}

impl Default for MyApp {
    fn default() -> Self {
        Self {
            name: "Arthur".to_owned(),
            age: 42,
        }
    }
}

impl eframe::App for MyApp {
    fn update(&mut self, ctx: &egui::Context, _frame: &mut eframe::Frame) {
        egui::CentralPanel::default().show(ctx, |ui| {
            let clicked = ui
                .horizontal(|ui| {
                    ui.label(format!("{}, {}", self.name, self.age));
                    ui.button("Edit").clicked()
                })
                .inner;
            let editing: bool = ui
                .data(|data| data.get_temp("editing".into()))
                .unwrap_or(false)
                || clicked;
            if editing {
                let mut combo_box_clicked = false;
                let clicked_outside = egui::Window::new("Choices")
                    .collapsible(false)
                    .show(ui.ctx(), |ui| {
                        combo_box_clicked |= egui::ComboBox::from_label("Name")
                            .selected_text(self.name.as_str())
                            .show_ui(ui, |ui| {
                                ui.selectable_value(&mut self.name, "Alice".to_owned(), "Alice")
                                    | ui.selectable_value(&mut self.name, "Bob".to_owned(), "Bob")
                                    | ui.selectable_value(
                                        &mut self.name,
                                        "Carol".to_owned(),
                                        "Carol",
                                    )
                            })
                            .inner
                            .map_or(false, |r| r.clicked());
                        ui.add(egui::DragValue::new(&mut self.age));
                    })
                    .map_or(true, |r| r.response.clicked_elsewhere());
                let close = clicked_outside & !combo_box_clicked;
                ui.data_mut(|data| data.insert_temp("editing".into(), !close || clicked));
            }
        });
    }
}

Screencast.from.2024-05-06.21-00-02.webm

You may want to tweak some things to make it look more like a popup, like removing the title bar, pinning the position etc.

[BennD]

Thanks. I can use that 👍

[BennD]

Screencast.from.2024-05-06.23-14-29.webm

Reimplemented via your suggestion