Alert Dialog

A modal confirmation surface for actions that need an explicit decision.

Like every gpui-base primitive, Alert Dialog supplies behavior and semantic structure without imposing a product visual language. Apply GPUI styles and compose the exported parts to match your design system.

#Example

The single native Cargo entrypoint selects this primitive from the shared showcase implementation. The same showcase is compiled once for the WASM preview above.

cargo run -p gpui-base-examples -- alert-dialog

#Import

use gpui_kit::base::{AlertDialog, AlertDialogAction, AlertDialogCancel, AlertDialogDescription, AlertDialogPopup, AlertDialogTitle, AlertDialogTrigger};

#Anatomy and API

The example composes AlertDialog, AlertDialogAction, AlertDialogCancel, AlertDialogDescription, AlertDialogPopup, AlertDialogTitle, AlertDialogTrigger. GPUI’s standard styling and event traits provide presentation; these base types provide the interaction structure.

The authoritative module is components/alert_dialog.rs. Native and browser previews compile this same file.

#State and events

Opening and dismissal are managed by AlertDialog; application action buttons decide when destructive work is committed.

Keep controlled state on the parent render type or in a GPUI entity. Update it in callbacks and call cx.notify(); do not recreate persistent entities during every render.

#Complete Rust example

The complete implementation used by the runnable showcase is embedded directly from Rust source:

use gpui::relative;

use super::*;

impl BaseShowcase {
    pub(in super::super) fn alert_dialog(&self, cx: &mut Context<Self>) -> impl IntoElement {
        let open = self.alert_dialog_open;
        let entity = cx.entity().downgrade();
        let open_entity = entity.clone();
        let ok_entity = entity.clone();
        let cancel_entity = entity.clone();
        let action_entity = entity.clone();

        div()
            .child(
                Button::new("open-alert-dialog")
                    .h_7()
                    .line_height(relative(1.))
                    .px_3()
                    .flex()
                    .items_center()
                    .justify_center()
                    .bg(gpui::black())
                    .text_color(gpui::white())
                    .on_click(move |_, _, cx| {
                        _ = open_entity.update(cx, |this, cx| {
                            this.alert_dialog_open = true;
                            cx.notify();
                        });
                    })
                    .child("Delete project"),
            )
            .child(
                AlertDialog::new(cx)
                    .open(open)
                    .on_open_change(move |open, _, _, cx| {
                        _ = entity.update(cx, |this, cx| {
                            this.alert_dialog_open = open;
                            cx.notify();
                        });
                    })
                    .on_ok(move |_, _, cx| {
                        _ = ok_entity.update(cx, |this, cx| {
                            this.alert_dialog_open = false;
                            cx.notify();
                        });
                        true
                    })
                    .backdrop(
                        AlertDialogBackdrop::new()
                            .absolute()
                            .inset_0()
                            .bg(super::example_rgb(0x000000))
                            .opacity(0.18),
                    )
                    .popup(
                        AlertDialogPopup::new()
                            .flex()
                            .items_center()
                            .justify_center()
                            .child(
                                div()
                                    .w_72()
                                    .p_3()
                                    .bg(super::example_rgb(0xffffff))
                                    .border_1()
                                    .border_color(super::example_rgb(0x171717))
                                    .child(
                                        AlertDialogTitle::new()
                                            .child("Delete project?"),
                                    )
                                    .child(
                                        AlertDialogDescription::new()
                                            .mt_2()
                                            .text_xs()
                                            .text_color(super::example_rgb(0x525252))
                                            .child(
                                                "This permanently deletes Acme Studio and all of its data.",
                                            ),
                                    )
                                    .child(
                                        div()
                                            .mt_3()
                                            .flex()
                                            .justify_end()
                                            .gap_2()
                                            .child(AlertDialogCancel::new().child(
                                                Button::new("cancel-delete")
                                                    .px_3()
                                                    .h_7()
                                                    .flex()
                                                    .items_center()
                                                    .text_xs()
                                                    .border_1()
                                                    .border_color(super::example_rgb(0xd4d4d4))
                                                    .on_click(move |_, _, cx| {
                                                        _ = cancel_entity.update(cx, |this, cx| {
                                                            this.alert_dialog_open = false;
                                                            cx.notify();
                                                        });
                                                    })
                                                    .child("Cancel"),
                                            ))
                                            .child(AlertDialogAction::new().child(
                                                Button::new("confirm-delete")
                                                    .px_3()
                                                    .h_7()
                                                    .flex()
                                                    .items_center()
                                                    .text_xs()
                                                    .border_1()
                                                    .border_color(super::example_rgb(0x171717))
                                                    .bg(super::example_rgb(0x171717))
                                                    .text_color(super::example_rgb(0xffffff))
                                                    .on_click(move |_, _, cx| {
                                                        _ = action_entity.update(cx, |this, cx| {
                                                            this.alert_dialog_open = false;
                                                            cx.notify();
                                                        });
                                                    })
                                                    .child("Delete"),
                                            )),
                                    ),
                            ),
                    ),
            )
    }
}

The command above supplies application initialization, window creation, and shared BaseShowcase state.

#Accessibility

Provide title and description, trap focus, offer cancel, and restore focus to the opener.

#Notes

Use stable element IDs where accepted. Verify focus, hover, active, selected, disabled, reduced-motion, and high-contrast appearances in the consuming design system.