From a17cd996a1883c2ef927b0ab5b59f97dd3cf8f52 Mon Sep 17 00:00:00 2001
From: KyleBarton <kjb@initialcapacity.io>
Date: Mon, 22 Dec 2025 10:54:31 -0800
Subject: [PATCH] Cleanup unused breadcrumb logic

---
 crates/editor/src/editor.rs       |  2 -
 crates/editor/src/items.rs        |  4 +-
 crates/git_ui/src/project_diff.rs | 61 +------------------------------
 3 files changed, 4 insertions(+), 63 deletions(-)

diff --git a/crates/editor/src/editor.rs b/crates/editor/src/editor.rs
index 229477e70016da1e5609d6e75c67a5b431abc623..68be482d0611edaf3401a4da48260396cb03cd20 100644
--- a/crates/editor/src/editor.rs
+++ b/crates/editor/src/editor.rs
@@ -1216,7 +1216,6 @@ pub struct Editor {
     accent_data: Option<AccentData>,
     fetched_tree_sitter_chunks: HashMap<ExcerptId, HashSet<Range<BufferRow>>>,
     use_base_text_line_numbers: bool,
-    is_multibuffer_collapsed: bool,
 }
 
 #[derive(Debug, PartialEq)]
@@ -2407,7 +2406,6 @@ impl Editor {
             accent_data: None,
             fetched_tree_sitter_chunks: HashMap::default(),
             use_base_text_line_numbers: false,
-            is_multibuffer_collapsed: false,
         };
 
         if is_minimap {
diff --git a/crates/editor/src/items.rs b/crates/editor/src/items.rs
index 6176d93a986b35ceae7c767e112286be4e3ed86a..056098de5d5e6adda1e7305f6397a74c4e2f53d7 100644
--- a/crates/editor/src/items.rs
+++ b/crates/editor/src/items.rs
@@ -1,7 +1,7 @@
 use crate::{
     Anchor, Autoscroll, BufferSerialization, Editor, EditorEvent, EditorSettings, ExcerptId,
     ExcerptRange, FormatTarget, MultiBuffer, MultiBufferSnapshot, NavigationData,
-    ReportEditorEvent, SearchWithinRange, SelectionEffects, ToPoint as _, ToggleFoldAll,
+    ReportEditorEvent, SearchWithinRange, SelectionEffects, ToPoint as _,
     display_map::HighlightKey,
     editor_settings::SeedQuerySetting,
     persistence::{DB, SerializedEditor},
@@ -39,7 +39,7 @@ use std::{
 };
 use text::{BufferId, BufferSnapshot, Selection};
 use theme::Theme;
-use ui::{IconDecorationKind, Tooltip, prelude::*};
+use ui::{IconDecorationKind, prelude::*};
 use util::{ResultExt, TryFutureExt, paths::PathExt};
 use workspace::{
     CollaboratorId, ItemId, ItemNavHistory, ToolbarItemLocation, ViewId, Workspace, WorkspaceId,
diff --git a/crates/git_ui/src/project_diff.rs b/crates/git_ui/src/project_diff.rs
index e2063304577bd2ecb34b2d3162fefe997cd9c442..4eadcca61f2df8f50415a2ef479a95e4a553dbb5 100644
--- a/crates/git_ui/src/project_diff.rs
+++ b/crates/git_ui/src/project_diff.rs
@@ -9,7 +9,7 @@ use buffer_diff::{BufferDiff, DiffHunkSecondaryStatus};
 use collections::{HashMap, HashSet};
 use editor::{
     Addon, Editor, EditorEvent, SelectionEffects, SplittableEditor,
-    actions::{GoToHunk, GoToPreviousHunk, ToggleFoldAll},
+    actions::{GoToHunk, GoToPreviousHunk},
     multibuffer_context_lines,
     scroll::Autoscroll,
 };
@@ -41,7 +41,7 @@ use util::{ResultExt as _, rel_path::RelPath};
 use workspace::{
     CloseActiveItem, ItemNavHistory, SerializableItem, ToolbarItemEvent, ToolbarItemLocation,
     ToolbarItemView, Workspace,
-    item::{BreadcrumbText, Item, ItemEvent, ItemHandle, SaveOptions, TabContentParams},
+    item::{Item, ItemEvent, ItemHandle, SaveOptions, TabContentParams},
     notifications::NotifyTaskExt,
     searchable::SearchableItemHandle,
 };
@@ -70,7 +70,6 @@ pub struct ProjectDiff {
     workspace: WeakEntity<Workspace>,
     focus_handle: FocusHandle,
     pending_scroll: Option<PathKey>,
-    is_collapsed: bool,
     _task: Task<Result<()>>,
     _subscription: Subscription,
 }
@@ -330,7 +329,6 @@ impl ProjectDiff {
             focus_handle,
             editor,
             multibuffer,
-            is_collapsed: false,
             buffer_diff_subscriptions: Default::default(),
             pending_scroll: None,
             _task: task,
@@ -912,61 +910,6 @@ impl Item for ProjectDiff {
         }
     }
 
-    fn breadcrumb_prefix(
-        &self,
-        _window: &mut Window,
-        cx: &mut Context<Self>,
-    ) -> Option<gpui::AnyElement> {
-        let is_collapsed = self.is_collapsed;
-
-        let (icon, label, tooltip_label) = if is_collapsed {
-            (
-                IconName::ChevronUpDown,
-                "Expand All",
-                "Expand All Search Results",
-            )
-        } else {
-            (
-                IconName::ChevronDownUp,
-                "Collapse All",
-                "Collapse All Search Results",
-            )
-        };
-
-        let focus_handle = self.editor.focus_handle(cx);
-
-        Some(
-            Button::new("multibuffer-collapse-expand", label)
-                .icon(icon)
-                .icon_position(IconPosition::Start)
-                .icon_size(IconSize::Small)
-                .tooltip(move |_, cx| {
-                    Tooltip::for_action_in(tooltip_label, &ToggleFoldAll, &focus_handle, cx)
-                })
-                .on_click(cx.listener(|this, _, window, cx| {
-                    this.is_collapsed = !this.is_collapsed;
-                    this.editor.update(cx, |splittable, cx| {
-                        splittable.last_selected_editor().update(cx, |editor, cx| {
-                            editor.toggle_fold_all(&ToggleFoldAll, window, cx);
-                        })
-                    })
-                }))
-                .into_any_element(),
-        )
-    }
-
-    fn breadcrumb_location(&self, _: &App) -> ToolbarItemLocation {
-        ToolbarItemLocation::Hidden
-    }
-
-    fn breadcrumbs(&self, theme: &theme::Theme, cx: &App) -> Option<Vec<BreadcrumbText>> {
-        self.editor
-            .read(cx)
-            .last_selected_editor()
-            .read(cx)
-            .breadcrumbs(theme, cx)
-    }
-
     fn added_to_workspace(
         &mut self,
         workspace: &mut Workspace,