Move more tooltip logic into gpui2 & fix tooltip moving on paint

Co-Authored-By: Conrad Irwin <conrad@zed.dev>

crates/ui2/src/components/tooltip.rs

@@ -1,44 +1,16 @@
 use std::time::Duration;
 
-use gpui2::{
-    div, px, Component, Div, ParentElement, Render, SharedString, Styled, View, ViewContext,
-    VisualContext, WindowContext,
-};
+use gpui2::{div, px, Div, ParentElement, Render, SharedString, Styled, ViewContext};
 use theme2::ActiveTheme;
 
-const DELAY: Duration = Duration::from_millis(500);
-
 #[derive(Clone, Debug)]
 pub struct TextTooltip {
     title: SharedString,
-    visible: bool,
 }
 
 impl TextTooltip {
     pub fn new(str: SharedString) -> Self {
-        Self {
-            title: str,
-            visible: false,
-        }
-    }
-
-    pub fn build_view(str: SharedString, cx: &mut WindowContext) -> View<Self> {
-        let view = cx.build_view(|cx| TextTooltip::new(str));
-
-        let handle = view.downgrade();
-        cx.spawn(|mut cx| async move {
-            cx.background_executor().timer(DELAY).await;
-
-            handle
-                .update(&mut cx, |this, cx| {
-                    this.visible = true;
-                    cx.notify();
-                })
-                .ok();
-        })
-        .detach();
-
-        view
+        Self { title: str }
     }
 }
 
@@ -48,7 +20,6 @@ impl Render for TextTooltip {
     fn render(&mut self, cx: &mut ViewContext<Self>) -> Self::Element {
         let theme = cx.theme();
         div()
-            .when(!self.visible, |this| this.invisible())
             .bg(theme.colors().background)
             .rounded(px(8.))
             .border()