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Feat: introduce children for walking down the tree

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This commit is contained in:
Jonathan Kelley 2021-05-18 10:36:17 -04:00
parent 24805a02f6
commit 0d44f009b0
7 changed files with 165 additions and 77 deletions
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18
packages/core/src/arena.rs
View file

@ -29,12 +29,20 @@ impl ScopeArena {
})))
}
/// THIS METHOD IS CURRENTLY UNSAFE
/// THERE ARE NO CHECKS TO VERIFY THAT WE ARE ALLOWED TO DO THIS
pub fn try_get(&self, idx: ScopeIdx) -> Result<&Scope> {
todo!()
let inner = unsafe { &*self.0.borrow().arena.get() };
let scope = inner.get(idx);
scope.ok_or_else(|| Error::FatalInternal("Scope not found"))
}
/// THIS METHOD IS CURRENTLY UNSAFE
/// THERE ARE NO CHECKS TO VERIFY THAT WE ARE ALLOWED TO DO THIS
pub fn try_get_mut(&self, idx: ScopeIdx) -> Result<&mut Scope> {
todo!()
let inner = unsafe { &mut *self.0.borrow().arena.get() };
let scope = inner.get_mut(idx);
scope.ok_or_else(|| Error::FatalInternal("Scope not found"))
}
fn inner(&self) -> &Arena<Scope> {
@ -45,8 +53,12 @@ impl ScopeArena {
todo!()
}
/// THIS METHOD IS CURRENTLY UNSAFE
/// THERE ARE NO CHECKS TO VERIFY THAT WE ARE ALLOWED TO DO THIS
pub fn with<T>(&self, f: impl FnOnce(&mut Arena<Scope>) -> T) -> Result<T> {
todo!()
let inner = unsafe { &mut *self.0.borrow().arena.get() };
Ok(f(inner))
// todo!()
}
unsafe fn inner_unchecked<'s>() -> &'s mut Arena<Scope> {

2
packages/core/src/events.rs
View file

@ -81,7 +81,7 @@ pub mod on {
Listener {
event: stringify!($name),
id: *c.listener_id.borrow(),
scope: c.scope_ref.myidx,
scope: c.scope_ref.arena_idx,
callback: bump.alloc(move |evt: VirtualEvent| match evt {
VirtualEvent::$eventdata(event) => callback(event),
_ => {

2
packages/core/src/nodebuilder.rs
View file

@ -342,7 +342,7 @@ where
event,
callback: bump.alloc(callback),
id: *self.ctx.listener_id.borrow(),
scope: self.ctx.scope_ref.myidx,
scope: self.ctx.scope_ref.arena_idx,
};
self.add_listener(listener)
}

40
packages/core/src/virtual_dom.rs
View file

@ -277,13 +277,13 @@ impl VirtualDom {
// Start a new mutable borrow to components
// We are guaranteeed that this scope is unique because we are tracking which nodes have modified
let component = self.components.try_get_mut(update.idx).unwrap();
let mut cur_component = self.components.try_get_mut(update.idx).unwrap();
component.run_scope()?;
cur_component.run_scope()?;
diff_machine.diff_node(component.old_frame(), component.next_frame());
diff_machine.diff_node(cur_component.old_frame(), cur_component.next_frame());
cur_height = component.height;
cur_height = cur_component.height;
log::debug!(
"Processing update: {:#?} with height {}",
@ -315,7 +315,7 @@ impl VirtualDom {
Scope::new(
caller,
f,
None,
Some(cur_component.arena_idx),
cur_height + 1,
self.event_queue.clone(),
self.components.clone(),
@ -323,20 +323,23 @@ impl VirtualDom {
})
})?;
cur_component.children.borrow_mut().insert(idx);
// Grab out that component
let component = self.components.try_get_mut(idx).unwrap();
let new_component = self.components.try_get_mut(idx).unwrap();
// Actually initialize the caller's slot with the right address
*stable_scope_addr.upgrade().unwrap().as_ref().borrow_mut() = Some(idx);
// Run the scope for one iteration to initialize it
component.run_scope()?;
new_component.run_scope()?;
// Navigate the diff machine to the right point in the output dom
diff_machine.change_list.load_known_root(id);
// And then run the diff algorithm
diff_machine.diff_node(component.old_frame(), component.next_frame());
diff_machine
.diff_node(new_component.old_frame(), new_component.next_frame());
// Finally, insert this node as a seen node.
seen_nodes.insert(idx);
@ -439,6 +442,8 @@ pub struct Scope {
// The parent's scope ID
pub parent: Option<ScopeIdx>,
pub children: RefCell<HashSet<ScopeIdx>>,
// A reference to the list of components.
// This lets us traverse the component list whenever we need to access our parent or children.
arena_link: ScopeArena,
@ -446,7 +451,7 @@ pub struct Scope {
pub shared_contexts: RefCell<HashMap<TypeId, Rc<dyn Any>>>,
// Our own ID accessible from the component map
pub myidx: ScopeIdx,
pub arena_idx: ScopeIdx,
pub height: u32,
@ -521,8 +526,9 @@ impl Scope {
frames: ActiveFrame::new(),
listeners: Default::default(),
hookidx: Default::default(),
children: Default::default(),
parent,
myidx,
arena_idx: myidx,
height,
event_queue,
arena_link,
@ -549,6 +555,8 @@ impl Scope {
// This breaks any latent references, invalidating every pointer referencing into it.
self.frames.next().bump.reset();
*self.hookidx.borrow_mut() = 0;
let caller = self
.caller
.upgrade()
@ -777,23 +785,24 @@ impl Scope {
let mut ctxs = self.shared_contexts.borrow_mut();
let ty = TypeId::of::<T>();
let initialized = self.use_hook(
let is_initialized = self.use_hook(
|| false,
|s| {
let i = *s;
let i = s.clone();
*s = true;
i
},
|_| {},
);
match (initialized, ctxs.contains_key(&ty)) {
match (is_initialized, ctxs.contains_key(&ty)) {
// Do nothing, already initialized and already exists
(true, true) => {}
// Needs to be initialized
(false, false) => {
ctxs.insert(ty, Rc::new(init())).unwrap();
log::debug!("Initializing context...");
ctxs.insert(ty, Rc::new(init()));
}
(false, true) => panic!("Cannot initialize two contexts of the same type"),
@ -807,6 +816,7 @@ impl Scope {
let mut scope = Some(self);
while let Some(inner) = scope {
log::debug!("Searching {:#?} for valid shared_context", inner.arena_idx);
let shared_contexts = inner.shared_contexts.borrow();
if let Some(shared_ctx) = shared_contexts.get(&ty) {
return Ok(shared_ctx.clone().downcast().unwrap());
@ -849,7 +859,7 @@ impl EventQueue {
let inner = self.clone();
let marker = HeightMarker {
height: source.height,
idx: source.myidx,
idx: source.arena_idx,
};
move || inner.0.as_ref().borrow_mut().push(marker)
}

66
packages/web/examples/context.rs Normal file
View file

@ -0,0 +1,66 @@
use std::fmt::Display;
use dioxus::{events::on::MouseEvent, prelude::*};
use dioxus_core as dioxus;
use dioxus_web::WebsysRenderer;
fn main() {
wasm_logger::init(wasm_logger::Config::new(log::Level::Trace));
console_error_panic_hook::set_once();
wasm_bindgen_futures::spawn_local(async {
WebsysRenderer::new_with_props(Example, ())
.run()
.await
.unwrap()
});
}
#[derive(Debug)]
struct CustomContext([&'static str; 3]);
static Example: FC<()> = |ctx, props| {
ctx.create_context(|| CustomContext(["Jack", "Jill", "Bob"]));
let names = ctx.use_context::<CustomContext>();
// let name = names.0[props.id as usize];
ctx.render(rsx! {
div {
class: "py-12 px-4 text-center w-full max-w-2xl mx-auto"
span {
class: "text-sm font-semibold"
"Dioxus Example: Jack and Jill"
}
h2 {
class: "text-5xl mt-2 mb-6 leading-tight font-semibold font-heading"
"Hello"
}
CustomButton { id: 0 }
CustomButton { id: 1 }
CustomButton { id: 2 }
}
})
};
#[derive(Props, PartialEq)]
struct ButtonProps {
id: u8,
}
fn CustomButton<'b, 'a,>(ctx: Context<'a>, props: &'b ButtonProps) -> DomTree {
let names = ctx.use_context::<CustomContext>();
let name = names.0[props.id as usize];
ctx.render(rsx!{
button {
class: "inline-block py-4 px-8 mr-6 leading-none text-white bg-indigo-600 hover:bg-indigo-900 font-semibold rounded shadow"
"{name}"
}
})
}

4
packages/web/examples/derive.rs Normal file
View file

@ -0,0 +1,4 @@
use dioxus::{events::on::MouseEvent, prelude::*};
use dioxus_core as dioxus;
use dioxus_web::WebsysRenderer;
fn main() {}

96
packages/web/examples/todomvcsingle.rs
View file

@ -1,68 +1,24 @@
#![allow(non_snake_case)]
use dioxus_core::prelude::*;
use dioxus_web::WebsysRenderer;
static APP_STYLE: &'static str = include_str!("./todomvc/style.css");
fn main() {
wasm_bindgen_futures::spawn_local(WebsysRenderer::start(App));
}
// =======================
// state-related items
// =======================
pub static TODOS: AtomFamily<uuid::Uuid, TodoItem> = atom_family(|_| {});
pub static FILTER: Atom<FilterState> = atom(|_| FilterState::All);
pub static SHOW_ALL_TODOS: selector<bool> = selector(|g| g.getter(|f| false));
#[derive(PartialEq)]
pub enum FilterState {
All,
Active,
Completed,
}
#[derive(Debug, PartialEq, Clone)]
pub struct TodoItem {
pub id: uuid::Uuid,
pub checked: bool,
pub contents: String,
}
impl RecoilContext<()> {
pub fn add_todo(&self, contents: String) {}
pub fn remove_todo(&self, id: &uuid::Uuid) {}
pub fn select_all_todos(&self) {}
pub fn toggle_todo(&self, id: &uuid::Uuid) {}
pub fn clear_completed(&self) {}
pub fn set_filter(&self, filter: &FilterState) {}
}
// =======================
// Components
// =======================
pub fn App(ctx: Context, props: &()) -> DomTree {
fn main() {
wasm_bindgen_futures::spawn_local(WebsysRenderer::start(|ctx, props| {
ctx.render(rsx! {
div {
id: "app"
id: "app",
style { "{APP_STYLE}" }
// list
TodoList {}
// footer
footer {
class: "info"
p {"Double-click to edit a todo"}
p {
"Created by "
a { "jkelleyrtp", href: "http://github.com/jkelleyrtp/" }
}
p {
"Part of "
a { "TodoMVC", href: "http://todomvc.com" }
}
}
Footer {}
}
})
}));
}
pub fn TodoList(ctx: Context, props: &()) -> DomTree {
@ -175,6 +131,46 @@ pub fn FilterToggles(ctx: Context, props: &()) -> DomTree {
})
}
pub fn Footer(ctx: Context, props: &()) -> DomTree {
ctx.render(rsx! {
footer {
class: "info"
p {"Double-click to edit a todo"}
p {
"Created by "
a { "jkelleyrtp", href: "http://github.com/jkelleyrtp/" }
}
p {
"Part of "
a { "TodoMVC", href: "http://todomvc.com" }
}
}
})
}
#[derive(PartialEq)]
pub enum FilterState {
All,
Active,
Completed,
}
#[derive(Debug, PartialEq, Clone)]
pub struct TodoItem {
pub id: uuid::Uuid,
pub checked: bool,
pub contents: String,
}
impl RecoilContext<()> {
pub fn add_todo(&self, contents: String) {}
pub fn remove_todo(&self, id: &uuid::Uuid) {}
pub fn select_all_todos(&self) {}
pub fn toggle_todo(&self, id: &uuid::Uuid) {}
pub fn clear_completed(&self) {}
pub fn set_filter(&self, filter: &FilterState) {}
}
pub use recoil::*;
mod recoil {
use dioxus_core::context::Context;