docs: move around examples

This commit is contained in:
Jonathan Kelley committed 2021-06-17 18:00:32 -04:00
1 parent b9ff95fa12
commit 70cd46dbb2
45 files changed
+3742 -2291

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+35 -50
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@@ -4,14 +4,12 @@
//! It's slightly more advanced than just cloning, but well worth the investment.
//!
//! If you use the FC macro, we handle the lifetimes automatically, making it easy to write efficient & performant components.
fn main() {}
use std::{borrow::Borrow, ops::Deref, rc::Rc};
use dioxus_core::prelude::*;
use std::rc::Rc;
struct Props {
struct AppProps {
items: Vec<Rc<ListItem>>,
}
@@ -21,67 +19,54 @@ struct ListItem {
age: u32,
}
fn app(ctx: Context<Props>) -> VNode {
fn app(ctx: Context<AppProps>) -> VNode {
let (val, set_val) = use_state(&ctx, || 0);
ctx.render(dioxus::prelude::LazyNodes::new(move |c| {
let mut root = builder::ElementBuilder::new(c, "div");
for child in &ctx.items {
// notice that the child directly borrows from our vec
// this makes lists very fast (simply views reusing lifetimes)
// <ChildItem item=child hanldler=setter />
root = root.child(builder::virtual_child(
c,
ChildItem,
// create the props with nothing but the fc<T>
fc_to_builder(ChildItem)
.item(child.clone())
.item_handler(Callback(set_val.clone()))
.build(),
None,
&[],
));
}
root.finish()
ctx.render(LazyNodes::new(move |_nodectx| {
builder::ElementBuilder::new(_nodectx, "div")
.iter_child({
ctx.items.iter().map(|child| {
builder::virtual_child(
_nodectx,
ChildItem,
ChildProps {
item: child.clone(),
item_handler: set_val.clone(),
},
None,
&[],
)
})
})
.iter_child([builder::ElementBuilder::new(_nodectx, "div")
.iter_child([builder::text3(_nodectx.bump(), format_args!("{}", val))])
.finish()])
.finish()
}))
}
// props should derive a partialeq implementation automatically, but implement ptr compare for & fields
#[derive(Props, PartialEq)]
struct ChildProps {
// Pass down complex structs
item: Rc<ListItem>,
// Even pass down handlers!
item_handler: Callback<i32>,
item_handler: Rc<dyn Fn(i32)>,
}
fn ChildItem<'a>(ctx: Context<ChildProps>) -> VNode {
ctx.render(rsx! {
div {
// onclick: move |evt| (ctx.item_handler)(10)
h1 { "abcd123 {ctx.item.name}" }
h2 { "abcd123" }
div {
"abcd123"
h2 { }
p { }
}
}
})
fn ChildItem<'a>(cx: Context<'a, ChildProps>) -> VNode {
cx.render(LazyNodes::new(move |__cx| todo!()))
}
#[derive(Clone)]
struct Callback<I, O = ()>(Rc<dyn Fn(I) -> O>);
impl<I, O> Deref for Callback<I, O> {
type Target = Rc<dyn Fn(I) -> O>;
fn deref(&self) -> &Self::Target {
&self.0
}
}
impl<I, O> PartialEq for Callback<I, O> {
impl PartialEq for ChildProps {
fn eq(&self, other: &Self) -> bool {
Rc::ptr_eq(&self.0, &other.0)
false
}
}
unsafe impl Properties for ChildProps {
type Builder = ();
const CAN_BE_MEMOIZED: bool = false;
fn builder() -> Self::Builder {
()
}
}