Tooltip on tabs

Co-Authored-By: Julia <julia@zed.dev>

crates/ui2/src/components.rs

@@ -31,6 +31,7 @@ mod theme_selector;
 mod title_bar;
 mod toast;
 mod toolbar;
+mod tooltip;
 mod traffic_lights;
 mod workspace;
 
@@ -67,5 +68,6 @@ pub use theme_selector::*;
 pub use title_bar::*;
 pub use toast::*;
 pub use toolbar::*;
+pub use tooltip::*;
 pub use traffic_lights::*;
 pub use workspace::*;

crates/ui2/src/components/tooltip.rs

@@ -0,0 +1,36 @@
+use gpui2::{
+    div, px, Div, ParentElement, Render, SharedString, Styled, View, ViewContext, VisualContext,
+};
+use theme2::ActiveTheme;
+
+#[derive(Clone, Debug)]
+pub struct TextTooltip {
+    title: SharedString,
+}
+
+impl TextTooltip {
+    pub fn new(str: SharedString) -> Self {
+        Self { title: str }
+    }
+
+    pub fn build_view<C: VisualContext>(str: SharedString, cx: &mut C) -> C::Result<View<Self>> {
+        cx.build_view(|cx| TextTooltip::new(str))
+    }
+}
+
+impl Render for TextTooltip {
+    type Element = Div<Self>;
+
+    fn render(&mut self, cx: &mut ViewContext<Self>) -> Self::Element {
+        let theme = cx.theme();
+        div()
+            .bg(theme.colors().background)
+            .rounded(px(8.))
+            .border()
+            .border_color(theme.colors().border)
+            .text_color(theme.colors().text)
+            .pl_2()
+            .pr_2()
+            .child(self.title.clone())
+    }
+}