Navigation

Notification Center for Slint

KitNotificationCenter · Slint Kit 0.3.1

Notification list with preview, read and removal actions by stable identity.

Run preview

Try the component

Download the complete project, extract it and run cargo run --locked in its folder. Rust 1.92+; Slint Kit 0.3.0 from crates.io. You can also copy the four files below.

Open a preview, mark an item read, or dismiss it. Rust owns each notice’s stable key and read state.

ui/app.slint

export { KitFormValidation, HtmlInputKind, NumberInputFormat, KitInputConstraints, KitValidationResult, KitValidityState } from "@kit/kit.slint";
// SPDX-License-Identifier: GPL-3.0-or-later
import { KitNotificationCenter, NotificationRow, KitTheme, KitThemes } from "@kit/kit.slint";
export component App inherits Window {
    title: "KitNotificationCenter example";
    preferred-width: 520px;
    preferred-height: 420px;
    max-width: 100000px;
    max-height: 100000px;
    background: root.theme.canvas;
    in-out property <KitTheme> theme: KitThemes.light;
    in property <[NotificationRow]> notices;
    in property <string> result: "Choose a notification";
    callback open-notice(int, int);
    callback mark-read(int, int);
    callback dismiss-notice(int, int);
    VerticalLayout {
        padding: 24px;
        spacing: 16px;
        alignment: start;
        control := KitNotificationCenter {
            theme: root.theme; rows: root.notices; height: 320px;
            activate(token, generation) => { root.open-notice(token, generation); }
            mark-read(token, generation) => { root.mark-read(token, generation); }
            dismiss-row(token, generation) => { root.dismiss-notice(token, generation); }
        }
        result := Text { text: root.result; color: root.theme.text-primary; }
    }

}

src/main.rs

// SPDX-License-Identifier: GPL-3.0-or-later
use slint::{ComponentHandle, ModelRc, VecModel};
use std::{cell::RefCell, rc::Rc};
mod ui { slint::include_modules!(); }
#[derive(Clone, Copy, PartialEq, Eq)]
enum Notice { SharedDocument, ExportReady }
impl Notice {
    fn token(self) -> i32 { match self { Self::SharedDocument => 11, Self::ExportReady => 23 } }
    fn label(self) -> &'static str { match self { Self::SharedDocument => "Document shared", Self::ExportReady => "Export ready" } }
}
fn publish(app: &ui::App, notices: &[(Notice, bool)]) {
    app.set_notices(ModelRc::new(VecModel::from(notices.iter().map(|(key, read)| ui::NotificationRow {
        item: ui::OptionRow { token: key.token(), generation: 1, label: key.label().into(), description: "Review the latest project update.".into(), disabled: false }, read: *read,
    }).collect::<Vec<_>>())));
}
fn main() -> Result<(), slint::PlatformError> {
    let app = ui::App::new()?;
    slint_kit::init_form_validation!(ui, app);
    let notices = Rc::new(RefCell::new(vec![(Notice::SharedDocument, false), (Notice::ExportReady, false)]));
    publish(&app, &notices.borrow());
    let weak = app.as_weak(); let state = notices.clone();
    app.on_open_notice(move |token, generation| {
        if generation != 1 { return; }
        let label = state.borrow().iter().find(|(key, _)| key.token() == token).map(|(key, _)| key.label());
        if let (Some(app), Some(label)) = (weak.upgrade(), label) { app.set_result(format!("Preview: {label}").into()); }
    });
    let weak = app.as_weak(); let state = notices.clone();
    app.on_mark_read(move |token, generation| { if generation != 1 { return; } if let Some(app) = weak.upgrade() {
        if let Some((_, read)) = state.borrow_mut().iter_mut().find(|(key, _)| key.token() == token) { *read = true; }
        let snapshot = state.borrow().clone(); publish(&app, &snapshot); app.set_result("Notification marked read".into());
    } });
    let weak = app.as_weak();
    app.on_dismiss_notice(move |token, generation| { if generation != 1 { return; } if let Some(app) = weak.upgrade() {
        notices.borrow_mut().retain(|(key, _)| key.token() != token);
        let snapshot = notices.borrow().clone(); publish(&app, &snapshot); app.set_result("Notification dismissed".into());
    } });
    app.run()
}

[package]
name = "slint-kit-notification-center-example"
version = "0.1.0"
edition = "2024"
rust-version = "1.92"
license = "GPL-3.0-or-later"
publish = false

[dependencies]
slint-kit = "=0.3.0"
slint = { version = "=1.18.1", default-features = false, features = ["std", "compat-1-18", "backend-winit", "renderer-skia", "accessibility"] }

[build-dependencies]
slint-kit-build = "=0.3.0"

[workspace]

fn main() { slint_kit_build::compile("ui/app.slint").expect("compile component example"); }

Files: Cargo.toml · build.rs · ui/app.slint · src/main.rs

Supply NotificationRow values and acknowledge activate, mark-read and dismiss-row by token and generation. Keep popup placement and mark-read-label and read-label stable during an open session.

Removal disables actions and emits the request after a 150 ms fade, omitted with reduced motion; changing identity cancels pending removal. Large collections use a virtualized list, and focus-token with focus-request can focus a preview.

View source ↗

Visual composition

The file below produces the screenshot. For controller-driven components, it shows the displayed state without supplying the Rust wiring. Create a project.

Show the screenshot source

// SPDX-License-Identifier: GPL-3.0-or-later
import { KitNotificationCenter, KitTheme, KitThemes } from "@kit/kit.slint";

export component Example inherits Window {
    title: "KitNotificationCenter example";
    preferred-width: 620px;
    preferred-height: 440px;
    max-width: 100000px;
    max-height: 100000px;
    background: root.theme.canvas;
    in-out property <KitTheme> theme: KitThemes.light;
    in-out property <string> status;
    VerticalLayout {
        padding: 24px; spacing: 16px; alignment: start;
        Text { text: "Notification Center"; color: root.theme.text-primary; font-size: 20px * root.theme.text-scale; font-weight: 600; }
        KitNotificationCenter { theme: root.theme; height: 300px; rows: [{ item: { token: 11, generation: 1, label: "Jamie shared a document", description: "Research notes are ready for review.", disabled: false }, read: false }, { item: { token: 23, generation: 1, label: "Your export is ready", description: "Download the latest project archive.", disabled: false }, read: true }]; }
        if root.status != "": Text { text: root.status; color: root.theme.text-secondary; font-size: 12px * root.theme.text-scale; wrap: word-wrap; }
    }
}

Download this example

Public API

Inherits Rectangle.

Properties

Types and variants

Callbacks

• activate(int, int)
• mark-read(int, int)
• dismiss-row(int, int)

See also

• Notification Button
• Drawer