leptodon 0.1.0

your Leptos UI toolkit for data science
Documentation 
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// Leptodon
//
// Copyright (C) 2025-2026 Open Analytics NV
//
// ===========================================================================
//
// This program is free software: you can redistribute it and/or modify it
// under the terms of the Apache License as published by The Apache Software
// Foundation, either version 2 of the License, or (at your option) any later
// version.
//
// This program is distributed in the hope that it will be useful, but WITHOUT
// ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
// FOR A PARTICULAR PURPOSE. See the Apache License for more details.
//
// You should have received a copy of the Apache License along with this program.
// If not, see <http://www.apache.org/licenses/>
use leptodon_proc_macros::generate_docs;
use leptos::prelude::BindAttribute;
use leptos::prelude::Children;
use leptos::prelude::ClassAttribute;
use leptos::prelude::ElementChild;
use leptos::prelude::Get;
use leptos::prelude::GlobalAttributes;
use leptos::prelude::RwSignal;
use leptos::prelude::use_context;
use leptos::{
    IntoView, component,
    prelude::{MaybeProp, Signal},
    view,
};
use leptos_use::math::use_or;

use crate::class_list;
use crate::form_input::FormInputContext;
use crate::form_input::PostfixLabelStyle;

const TOGGLE_CLASS: &str = "w-11 h-6 bg-gray-200 rounded-full peer peer-focus:ring-4 peer-focus:ring-oa-blue dark:peer-focus:ring-oa-blue dark:bg-gray-700 peer-checked:after:translate-x-full peer-checked:after:border-white after:content-[''] after:absolute after:top-0.5 after:left-[2px] after:bg-white after:border-gray-300 after:border after:rounded-full after:h-5 after:w-5 after:transition-all dark:border-gray-600 peer-checked:bg-oa-blue";

#[generate_docs]
/// Similar to checkbox, but in a physical-switch-like design.
/// Often used for persistent settings to give the feel of a physical switch.
#[component]
pub fn Toggle(
    #[prop(optional, into)] id: MaybeProp<String>,
    #[prop(optional, into)] name: MaybeProp<String>,
    #[prop(optional, into)] class: MaybeProp<String>,
    /// Whether this toggle needs to be ON for a form to be submitted.
    #[prop(optional)]
    required: bool,
    /// Checked state
    #[prop(optional, into)]
    checked: RwSignal<bool>,
    /// Labels the toggle
    children: Children,
) -> impl IntoView {
    // Form context
    let form_context = use_context::<FormInputContext<String>>();
    let form_required = Signal::from(
        form_context
            .clone()
            .map(|ctx| ctx.required)
            .unwrap_or_default(),
    );
    let required = use_or(required, form_required);

    view! {
        <label class=class_list!("relative inline-flex items-center mb-4 cursor-pointer", class)>
            <input
                name=name.get()
                type="checkbox"
                required=required
                bind:checked=checked
                class="sr-only peer"
            />

            <div
                id=id.get()
                class=TOGGLE_CLASS
            ></div>
            <PostfixLabelStyle required=required.get() children />
        </label>
    }
}