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use yew::prelude::*;
use super::{use_debounce, use_event};
/// A sensor hook that tracks whether HTML element is scrolling.
///
/// # Example
///
/// ```rust
/// # use yew::prelude::*;
/// #
/// use yew_hooks::prelude::*;
///
/// #[function_component(UseScrolling)]
/// fn scrolling() -> Html {
/// let node = use_node_ref();
/// let state = use_scrolling(node.clone());
///
/// html! {
/// <div ref={node}>
/// <b>{ " Scrolling: " }</b>
/// { state }
/// </div>
/// }
/// }
/// ```
#[hook]
pub fn use_scrolling(node: NodeRef) -> bool {
let state = use_state_eq(|| false);
let debounce = {
let state = state.clone();
use_debounce(
move || {
state.set(false);
},
150,
)
};
{
let state = state.clone();
use_event(node, "scroll", move |_: Event| {
state.set(true);
debounce.run();
});
}
*state
}