mirror of
https://github.com/DioxusLabs/dioxus
synced 2024-12-23 19:13:08 +00:00
508c560320
This change switches back to the original `ctx<props>` syntax for commponents. This lets lifetime elision to remove the need to match exactly which lifetime (props or ctx) gets carried to the output. As such, `Props` is currently required to be static. It *is* possible to loosen this restriction, and will be done in the future, though only through adding metadata about the props through the Props derive macro. Implementing the IS_STATIC trait is unsafe, so the derive macro will do it through some heuristics. For now, this unlocks sharing vnodes from parents to children, enabling pass-thru components, fragments, portals, etc.
73 lines
1.6 KiB
Rust
73 lines
1.6 KiB
Rust
use std::rc::Rc;
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use dioxus_web::{dioxus::prelude::*, WebsysRenderer};
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fn main() {
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wasm_logger::init(wasm_logger::Config::new(log::Level::Debug));
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console_error_panic_hook::set_once();
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wasm_bindgen_futures::spawn_local(WebsysRenderer::start(CustomA))
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}
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fn CustomA(ctx: Context<()>) -> VNode {
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let (val, set_val) = use_state(&ctx, || "abcdef".to_string() as String);
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ctx.render(rsx! {
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div {
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class: "m-8"
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"CustomA {val}"
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button {
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"Upper"
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onclick: move |_| set_val(val.to_ascii_uppercase())
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}
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button {
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"Lower"
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onclick: move |_| set_val(val.to_ascii_lowercase())
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}
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components::CustomB {
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val: val.clone()
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}
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}
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})
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}
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mod components {
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use std::rc::Rc;
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use super::*;
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#[derive(Debug, Props, PartialEq)]
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pub struct PropsB {
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val: String,
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}
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pub fn CustomB(ctx: Context<PropsB>) -> VNode {
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let (first, last) = ctx.val.split_at(3);
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ctx.render(rsx! {
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div {
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class: "m-8"
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"CustomB {ctx.val}"
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CustomC {
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val: first.to_string()
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}
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CustomC {
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val: last.to_string()
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}
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}
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})
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}
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#[derive(Debug, Props, PartialEq)]
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struct PropsC {
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val: String,
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}
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fn CustomC(ctx: Context<PropsC>) -> VNode {
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ctx.render(rsx! {
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div {
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class: "m-8"
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"CustomC {ctx.val}"
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}
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})
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}
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}
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