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gpui: Add use state APIs (#34741)

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This PR adds a component level state API to GPUI, as well as a few
utilities for simplified interactions with entities

Release Notes:

- N/A
This commit is contained in:
Mikayla Maki 2025-07-18 18:27:54 -07:00 • committed by GitHub
parent 4bdac8026c
commit 2da2ae65a0
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GPG key ID: B5690EEEBB952194
10 changed files with 252 additions and 25 deletions
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29
crates/gpui/src/element.rs
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@ -39,7 +39,7 @@ use crate::{
use derive_more::{Deref, DerefMut};
pub(crate) use smallvec::SmallVec;
use std::{
any::Any,
any::{Any, type_name},
fmt::{self, Debug, Display},
mem, panic,
};
@ -220,14 +220,17 @@ impl<C: RenderOnce> Element for Component<C> {
window: &mut Window,
cx: &mut App,
) -> (LayoutId, Self::RequestLayoutState) {
let mut element = self
.component
.take()
.unwrap()
.render(window, cx)
.into_any_element();
let layout_id = element.request_layout(window, cx);
(layout_id, element)
window.with_global_id(ElementId::Name(type_name::<C>().into()), |_, window| {
let mut element = self
.component
.take()
.unwrap()
.render(window, cx)
.into_any_element();
let layout_id = element.request_layout(window, cx);
(layout_id, element)
})
}
fn prepaint(
@ -239,7 +242,9 @@ impl<C: RenderOnce> Element for Component<C> {
window: &mut Window,
cx: &mut App,
) {
element.prepaint(window, cx);
window.with_global_id(ElementId::Name(type_name::<C>().into()), |_, window| {
element.prepaint(window, cx);
})
}
fn paint(
@ -252,7 +257,9 @@ impl<C: RenderOnce> Element for Component<C> {
window: &mut Window,
cx: &mut App,
) {
element.paint(window, cx);
window.with_global_id(ElementId::Name(type_name::<C>().into()), |_, window| {
element.paint(window, cx);
})
}
}