KitSelectTrigger
Customizable trigger sharing selector interactions.

Compose its non-interactive content and provide state with an accessible name. Forward open-requested, dismiss, navigate and activate to the controller.
It inherits KitPressable and exposes a combobox role with expanded state. Clicking an open selector requests CloseReason.trigger-toggle; keys pass through KitSelectKeyboard.
Complete example
This complete Slint file is a visual composition used to produce the screenshot above. Internal strings without a label property retain the kit’s default language; system dialogs follow the host platform. Projected state and callbacks requesting a decision need host wiring; the standalone fixture does not supply that controller. Set up the Rust project, then see the typed controller application for working editing, validation and selection.
// SPDX-License-Identifier: GPL-3.0-or-later
import { KitSelectTrigger, KitTheme, KitThemes, SelectionAvailability } from "@kit/kit.slint";
export component Example inherits Window {
title: "KitSelectTrigger example";
preferred-width: 420px;
preferred-height: 180px;
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: "Select Trigger"; color: root.theme.text-primary; font-size: 20px * root.theme.text-scale; font-weight: 600; }
KitSelectTrigger { theme: root.theme; Text { text: "Overview"; color: root.theme.text-primary; vertical-alignment: center; } state: { open: false, generation: 1, active-index: 0, active: { present: true, token: 11 }, selected: { present: true, token: 11 }, selection-availability: SelectionAvailability.available }; activate(token, generation) => { root.status = "Activated stable token " + token; } }
if root.status != "": Text { text: root.status; color: root.theme.text-secondary; font-size: 12px * root.theme.text-scale; wrap: word-wrap; }
}
}
Public API
Inherits KitPressable. The declarations below come from the component source. Parent properties remain available; see the controller guide for state management.
Properties
| Name | Type | Direction |
|---|---|---|
state |
SelectState |
in |
Types and variants
Names below use Slint syntax. Shared Rust domain types live in slint_kit; presentation enums come from the Rust types generated by Slint.
| Type | Declaration |
|---|---|
enum CloseReason |
escape, outside-press, system-back, trigger-toggle, programmatic, host-closed |
enum NavigationStep |
next, previous, first, last, page-next, page-previous |
enum SelectionAvailability |
absent, available, unavailable |
struct SelectionRef |
present: bool, token: int |
struct SelectState |
selection-availability: SelectionAvailability, selected: SelectionRef, active: SelectionRef, open: bool, active-index: int, generation: int |
Callbacks
open-requested()navigate(NavigationStep)activate(int, int)dismiss(CloseReason)typeahead(string)tab-navigation(bool) → EventResult