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Scroll the tab bar to show the active tab

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Co-authored-by: Nathan <nathan@zed.dev>
Co-authored-by: Marshall <marshall@zed.dev>
This commit is contained in:
Max Brunsfeld 2023-12-12 15:42:33 -08:00
parent a579713a45
commit 6362221363
3 changed files with 49 additions and 26 deletions
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27
crates/ui2/src/components/tab_bar.rs
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@ -1,26 +1,33 @@
use gpui::{AnyElement, Stateful};
use gpui::{AnyElement, ScrollHandle, Stateful};
use smallvec::SmallVec;
use crate::prelude::*;
#[derive(IntoElement)]
pub struct TabBar {
div: Stateful<Div>,
id: ElementId,
start_children: SmallVec<[AnyElement; 2]>,
children: SmallVec<[AnyElement; 2]>,
end_children: SmallVec<[AnyElement; 2]>,
scroll_handle: Option<ScrollHandle>,
}
impl TabBar {
pub fn new(id: impl Into<ElementId>) -> Self {
Self {
div: div().id(id),
id: id.into(),
start_children: SmallVec::new(),
children: SmallVec::new(),
end_children: SmallVec::new(),
scroll_handle: None,
}
}
pub fn track_scroll(mut self, scroll_handle: ScrollHandle) -> Self {
self.scroll_handle = Some(scroll_handle);
self
}
pub fn start_children_mut(&mut self) -> &mut SmallVec<[AnyElement; 2]> {
&mut self.start_children
}
@ -81,21 +88,14 @@ impl ParentElement for TabBar {
}
}
impl InteractiveElement for TabBar {
fn interactivity(&mut self) -> &mut gpui::Interactivity {
self.div.interactivity()
}
}
impl StatefulInteractiveElement for TabBar {}
impl RenderOnce for TabBar {
type Rendered = Stateful<Div>;
fn render(self, cx: &mut WindowContext) -> Self::Rendered {
const HEIGHT_IN_REMS: f32 = 30. / 16.;
self.div
div()
.id(self.id)
.group("tab_bar")
.flex()
.flex_none()
@ -134,6 +134,9 @@ impl RenderOnce for TabBar {
.z_index(2)
.flex_grow()
.overflow_x_scroll()
.when_some(self.scroll_handle, |cx, scroll_handle| {
cx.track_scroll(&scroll_handle)
})
.children(self.children),
),
)