我想知道如何在 Rust 中获取 Dioxus 中的元素属性。更具体地说,如何获取元素的高度和宽度。 CSS 使用 % 而不是 px,我想以某种方式获取元素的 px。
...
div { class: "some_class",
// get div height here
}
...
提前感谢您的帮助!
我希望不必使用 JavaScript,但目前我不确定 Dioxus 能提供什么支持。
来自https://github.com/DioxusLabs/dioxus/blob/main/examples/read_size.rs:
use std::rc::Rc;
use dioxus::{html::geometry::euclid::Rect, prelude::*};
fn main() {
dioxus::launch(app);
}
fn app() -> Element {
let mut div_element = use_signal(|| None as Option<Rc<MountedData>>);
let mut dimensions = use_signal(Rect::zero);
let read_dims = move |_| async move {
let read = div_element.read();
let client_rect = read.as_ref().map(|el| el.get_client_rect());
if let Some(client_rect) = client_rect {
if let Ok(rect) = client_rect.await {
dimensions.set(rect);
}
}
};
rsx!(
document::Link { rel: "stylesheet", href: asset!("./examples/assets/read_size.css") }
div {
width: "50%",
height: "50%",
background_color: "red",
onmounted: move |cx| div_element.set(Some(cx.data())),
"This element is {dimensions():?}"
}
button { onclick: read_dims, "Read dimensions" }
)
}