move gpui-components to ui crate

crates/ui/src/sidebar/header.rs

@@ -0,0 +1,77 @@
+use gpui::{
+    prelude::FluentBuilder as _, Div, ElementId, InteractiveElement, IntoElement, ParentElement,
+    RenderOnce, SharedString, Styled,
+};
+
+use crate::{h_flex, popup_menu::PopupMenuExt, theme::ActiveTheme as _, Collapsible, Selectable};
+
+#[derive(IntoElement)]
+pub struct SidebarHeader {
+    id: ElementId,
+    base: Div,
+    selected: bool,
+    is_collapsed: bool,
+}
+
+impl SidebarHeader {
+    pub fn new() -> Self {
+        Self {
+            id: SharedString::from("sidebar-header").into(),
+            base: h_flex().gap_2().w_full(),
+            selected: false,
+            is_collapsed: false,
+        }
+    }
+}
+impl Selectable for SidebarHeader {
+    fn selected(mut self, selected: bool) -> Self {
+        self.selected = selected;
+        self
+    }
+
+    fn element_id(&self) -> &gpui::ElementId {
+        &self.id
+    }
+}
+impl Collapsible for SidebarHeader {
+    fn is_collapsed(&self) -> bool {
+        self.is_collapsed
+    }
+
+    fn collapsed(mut self, collapsed: bool) -> Self {
+        self.is_collapsed = collapsed;
+        self
+    }
+}
+impl ParentElement for SidebarHeader {
+    fn extend(&mut self, elements: impl IntoIterator<Item = gpui::AnyElement>) {
+        self.base.extend(elements);
+    }
+}
+impl Styled for SidebarHeader {
+    fn style(&mut self) -> &mut gpui::StyleRefinement {
+        self.base.style()
+    }
+}
+impl PopupMenuExt for SidebarHeader {}
+impl RenderOnce for SidebarHeader {
+    fn render(self, cx: &mut gpui::WindowContext) -> impl gpui::IntoElement {
+        h_flex()
+            .id(self.id)
+            .gap_2()
+            .p_2()
+            .w_full()
+            .justify_between()
+            .cursor_pointer()
+            .rounded_md()
+            .hover(|this| {
+                this.bg(cx.theme().sidebar_accent)
+                    .text_color(cx.theme().sidebar_accent_foreground)
+            })
+            .when(self.selected, |this| {
+                this.bg(cx.theme().sidebar_accent)
+                    .text_color(cx.theme().sidebar_accent_foreground)
+            })
+            .child(self.base)
+    }
+}