Introduced ItemEvent and to_item_events function to Item trait which converts the Item's events into a standard ItemEvent similar to how SearchableItems work.

Add breadcrumb_location and breadcrumbs functions to item trait which handles rendering of the breadcrumb elements
Change breadcrumb toolbar to use these new functions rather than having hard coded breadcrumb logic
Add breadcrumb support to the terminal tabs

Co-Authored-By: Mikayla Maki <mikayla@zed.dev>

crates/terminal/src/terminal.rs

@@ -83,6 +83,7 @@ const DEBUG_LINE_HEIGHT: f32 = 5.;
 #[derive(Clone, Copy, Debug)]
 pub enum Event {
     TitleChanged,
+    BreadcrumbsChanged,
     CloseTerminal,
     Bell,
     Wakeup,
@@ -494,9 +495,11 @@ impl Terminal {
         match event {
             AlacTermEvent::Title(title) => {
                 self.breadcrumb_text = title.to_string();
+                cx.emit(Event::BreadcrumbsChanged);
             }
             AlacTermEvent::ResetTitle => {
                 self.breadcrumb_text = String::new();
+                cx.emit(Event::BreadcrumbsChanged);
             }
             AlacTermEvent::ClipboardStore(_, data) => {
                 cx.write_to_clipboard(ClipboardItem::new(data.to_string()))

crates/terminal/src/terminal_container_view.rs

@@ -9,7 +9,7 @@ use gpui::{
 };
 use util::truncate_and_trailoff;
 use workspace::searchable::{SearchEvent, SearchOptions, SearchableItem, SearchableItemHandle};
-use workspace::{Item, ItemEvent, Workspace};
+use workspace::{Item, ItemEvent, ToolbarItemLocation, Workspace};
 
 use crate::TerminalSize;
 use project::{LocalWorktree, Project, ProjectPath};
@@ -363,13 +363,37 @@ impl Item for TerminalContainer {
         Some(Box::new(handle.clone()))
     }
 
-    fn to_item_events(event: &Self::Event) -> Vec<workspace::ItemEvent> {
+    fn to_item_events(event: &Self::Event) -> Vec<ItemEvent> {
         match event {
+            Event::BreadcrumbsChanged => vec![ItemEvent::UpdateBreadcrumbs],
             Event::TitleChanged | Event::Wakeup => vec![ItemEvent::UpdateTab],
             Event::CloseTerminal => vec![ItemEvent::CloseItem],
             _ => vec![],
         }
     }
+
+    fn breadcrumb_location(&self) -> ToolbarItemLocation {
+        if self.connected().is_some() {
+            ToolbarItemLocation::PrimaryLeft { flex: None }
+        } else {
+            ToolbarItemLocation::Hidden
+        }
+    }
+
+    fn breadcrumbs(&self, theme: &theme::Theme, cx: &AppContext) -> Option<Vec<ElementBox>> {
+        let connected = self.connected()?;
+
+        Some(vec![Text::new(
+            connected
+                .read(cx)
+                .terminal()
+                .read(cx)
+                .breadcrumb_text
+                .to_string(),
+            theme.breadcrumbs.text.clone(),
+        )
+        .boxed()])
+    }
 }
 
 impl SearchableItem for TerminalContainer {