components/switch
操作与选择 · 03 / 64

Switch

ui.widgets.Switch

用于立即生效的开关型布尔设置。

BEHAVIOR CONTRACT

明确区分 off、on、disabled,并提供成套键盘与无障碍语义。

RECORDED INTERACTION

Harness 点击 Off 开关,轨道与状态文本一起切换。

examples/storybook/stories.zig:392
pub fn buildSwitch(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, "toggled → (none)", .{ .font_size = 13, .color = light.color.fg_secondary });
    status.meta.ownership.meta.test_id = "story.switch.status";
    try c.appendChild(a, status);
    const story = try cx.bindState(SwitchStory, .{ .status = status });

    const off_switch = try W.Switch(.{
        .label_text = "Off",
        .initial_checked = false,
        .on_change = ui.Cx.boolHandlerFrom(SwitchStory, story, SwitchStory.onChange),
    }).mount(scope, cx);
    off_switch.meta.ownership.meta.test_id = "story.switch.off";
    try c.appendChild(a, off_switch);
    try c.appendChild(a, try W.Switch(.{ .label_text = "On", .initial_checked = true }).mount(scope, cx));
    try c.appendChild(a, try W.Switch(.{ .label_text = "Disabled", .disabled = true }).mount(scope, cx));
    return c;
}
在 GitHub 查看源码examples/storybook/stories.zig:392

这是 Storybook 中该 story 的原样代码(zenit 5f9add5+wip 2026-09-30)。其中 W 即 ui.widgets,col / row / label 是 Storybook 内的布局小工具。

zenit · 双授权开源项目可按 GPL-3.0-only 免费使用;闭源或商业产品需要商业授权。可联系作者:zongyi.xzy#gmail.com(# 换成 @)zenit 5f9add5+wip 2026-09-30