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perf(ui-gpui): custom Element header, 2.73% CPU (down from 90%)

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ProjectBoxHeaderElement: 5 paint_quad + 2 text runs, zero Taffy nodes.
Flattened hierarchy + SharedBlink + cached children + focus-gated blink.
GPUI architectural floor: cx.notify() always walks ancestors.
This commit is contained in:
Hibryda 2026-03-19 23:55:39 +01:00
parent 54e68df295
commit f0c55403b8
3 changed files with 141 additions and 21 deletions
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31
ui-gpui/src/components/project_box.rs
View file

@ -9,6 +9,7 @@
use gpui::*;
use crate::CachedView;
use crate::components::project_box_element::ProjectBoxHeaderElement;
use crate::state::{AgentStatus, Project, ProjectTab};
use crate::theme;
// blink_state used via fully-qualified path in init_subviews + render
@ -227,27 +228,15 @@ impl Render for ProjectBox {
.border_1()
.border_color(theme::SURFACE0)
.overflow_hidden()
// ── Header (minimal divs: 1 row + accent stripe + dot entity) ──
.child(
div()
.w_full()
.h(px(36.0))
.flex()
.items_center()
.px(px(12.0))
.gap(px(8.0))
.bg(theme::MANTLE)
.border_b_1()
.border_color(theme::SURFACE0)
.child(div().w(px(3.0)).h(px(20.0)).rounded(px(2.0)).bg(accent))
.child(crate::components::blink_state::render_status_dot(
self.project.agent.status,
self.shared_blink.as_ref(),
))
.child(self.cached_name.clone())
.child(div().flex_1())
.child(self.cached_cwd.clone()),
)
// ── Header — custom Element: 5 paint_quad + 2 text runs, zero Taffy nodes ──
.child(ProjectBoxHeaderElement {
id: self.id_project.clone().into(),
name: self.cached_name.clone(),
cwd: self.cached_cwd.clone(),
accent,
status: self.project.agent.status,
blink_visible: self.shared_blink.as_ref().map(|b| b.visible.clone()),
})
// ── Tab Bar (1 div + 3 inline tab labels) ──
.child(
div()