components/checkbox
Actions · 02 / 64

Checkbox

ui.widgets.Checkbox

An independent boolean with unchecked, checked and indeterminate states.

BEHAVIOR CONTRACT

State, focus, the label hit area and on_change share one interaction boundary.

RECORDED INTERACTION

The harness clicks the real checkbox; the status reads changed → checked.

examples/storybook/stories.zig:184
pub fn buildCheckbox(scope: *ui.Scope, cx: *ui.Cx) anyerror!*ui.Node {
    const a = cx.allocator;
    const c = try col(cx, 12);

    const status = try ui.text(cx, "changed → (none)", .{ .font_size = 13, .color = light.color.fg_secondary });
    status.meta.ownership.meta.test_id = "story.checkbox.status";

    const story = try cx.bindState(CheckboxStory, .{ .status = status });

    const unchecked = try ui.widgets.Checkbox(.{
        .label_text = "Unchecked",
        .initial_checked = false,
        .on_change = ui.Cx.boolHandlerFrom(CheckboxStory, story, CheckboxStory.onChange),
    }).mount(scope, cx);
    unchecked.meta.ownership.meta.test_id = "story.checkbox.box";
    try c.appendChild(a, unchecked);

    try c.appendChild(a, try ui.widgets.Checkbox(.{ .label_text = "Checked", .initial_checked = true }).mount(scope, cx));
    try c.appendChild(a, try ui.widgets.Checkbox(.{ .label_text = "Indeterminate", .indeterminate = true }).mount(scope, cx));
    try c.appendChild(a, try ui.widgets.Checkbox(.{ .label_text = "Disabled", .disabled = true }).mount(scope, cx));
    try c.appendChild(a, status);

    return c;
}
View source on GitHubexamples/storybook/stories.zig:184

The story's verbatim source from the Storybook (zenit 4c50245 2026-10-01). W is ui.widgets; col / row / label are small Storybook layout helpers.

zenit · Dual-licensedFree for open-source projects under GPL-3.0-only; closed-source or commercial products need a commercial license.Contact the author: zongyi.xzy#gmail.com (replace # with @)zenit 4c50245 2026-10-01