title_bar: Add show_worktree_name setting (#61137)

Adds a title_bar.show_worktree_name setting (default: true) that hides
the worktree picker button in the title bar, mirroring how
show_branch_name gates the branch picker. The "/" separator only renders
when both buttons are visible, and the container is omitted entirely
when both are hidden.

The setting is hide-only: it deliberately does not join the
render_project_items gate, so configurations with show_branch_name and
show_project_items both disabled keep hiding the whole group as before.

Requested in discussion
[zed-industries/zed#54902](https://github.com/zed-industries/zed/discussions/54902).

# Objective

The worktree name is always present in the title bar even when unused.
Unlike the branch name it has no dedicated option to disable it.

Requested in discussion
[zed-industries/zed#54902](https://github.com/zed-industries/zed/discussions/54902).

## Solution

Adds a `title_bar.show_worktree_name` setting (default: true) that hides
the worktree picker button in the title bar, mirroring how
show_branch_name gates the branch picker. The "/" separator only renders
when both buttons are visible, and the container is omitted entirely
when both are hidden.

The setting is hide-only: it deliberately does not join the
render_project_items gate, so configurations with show_branch_name and
show_project_items both disabled keep hiding the whole group as before.

## Testing

I tested the setting added by running the application by adding,
removing and toggling the `title_bar.show_worktree_name` setting in the
`settings.json`

## Self-Review Checklist:

- [x] I've reviewed my own diff for quality, security, and reliability
- [ ] Unsafe blocks (if any) have justifying comments
- [x] The content adheres to Zed's UI standards
([UX/UI](https://github.com/zed-industries/zed/blob/main/CONTRIBUTING.md#uiux-checklist)
and
[icon](https://github.com/zed-industries/zed/blob/main/crates/icons/README.md)
guidelines)
- [x] Tests cover the new/changed behavior
- [ ] Performance impact has been considered and is acceptable

## Showcase

<img width="1496" height="982" alt="title_bar.show_worktree_name =
false"
src="https://github.com/user-attachments/assets/b2c502de-a8d8-4409-ba04-5ab807c77a8e"
/>

<img width="1496" height="982" alt="title_bar.show_worktree_name = true"
src="https://github.com/user-attachments/assets/6cea7eb5-0e88-454c-9c97-3b4ad62aed51"
/>

---

Release Notes:

- title_bar: Added title_bar.show_worktree_name (default: true) to hide
worktree picker button

Co-authored-by: Claude Fable 5 <noreply@anthropic.com>

assets/settings/default.json

@@ -548,6 +548,8 @@
     "show_branch_status_icon": false,
     // Whether to show the branch name button in the titlebar.
     "show_branch_name": true,
+    // Whether to show the worktree name button in the titlebar.
+    "show_worktree_name": true,
     // Whether to show the project host and name in the titlebar.
     "show_project_items": true,
     // Whether to show onboarding banners in the titlebar.

crates/settings_content/src/title_bar.rs

@@ -99,6 +99,10 @@ pub struct TitleBarSettingsContent {
     ///
     /// Default: true
     pub show_branch_name: Option<bool>,
+    /// Whether to show the worktree name button in the titlebar.
+    ///
+    /// Default: true
+    pub show_worktree_name: Option<bool>,
     /// Whether to show the project host and name in the titlebar.
     ///
     /// Default: true

crates/settings_ui/src/page_data.rs

@@ -3989,7 +3989,7 @@ fn window_and_layout_page() -> SettingsPage {
         ]
     }
 
-    fn title_bar_section() -> [SettingsPageItem; 10] {
+    fn title_bar_section() -> [SettingsPageItem; 11] {
         [
             SettingsPageItem::SectionHeader("Title Bar"),
             SettingsPageItem::SettingItem(SettingItem {
@@ -4038,6 +4038,29 @@ fn window_and_layout_page() -> SettingsPage {
                 metadata: None,
                 files: USER,
             }),
+            SettingsPageItem::SettingItem(SettingItem {
+                title: "Show Worktree Name",
+                description: "Show the worktree name button in the titlebar.",
+                field: Box::new(SettingField {
+                    organization_override: None,
+                    json_path: Some("title_bar.show_worktree_name"),
+                    pick: |settings_content| {
+                        settings_content
+                            .title_bar
+                            .as_ref()?
+                            .show_worktree_name
+                            .as_ref()
+                    },
+                    write: |settings_content, value, _| {
+                        settings_content
+                            .title_bar
+                            .get_or_insert_default()
+                            .show_worktree_name = value;
+                    },
+                }),
+                metadata: None,
+                files: USER,
+            }),
             SettingsPageItem::SettingItem(SettingItem {
                 title: "Show Project Items",
                 description: "Show the project host and name in the titlebar.",

crates/title_bar/src/title_bar.rs

@@ -988,7 +988,7 @@ impl TitleBar {
             worktree_label.clone()
         };
 
-        let worktree_button = {
+        let worktree_button = settings.show_worktree_name.then(|| {
             let project = self.project.clone();
             let workspace_handle = workspace.downgrade();
             PopoverMenu::new("worktree-picker-menu")
@@ -1022,7 +1022,7 @@ impl TitleBar {
                     },
                 )
                 .anchor(gpui::Anchor::TopLeft)
-        };
+        });
 
         let branch_picker = branch_name.and_then(|branch_name| {
             settings.show_branch_name.then(|| {
@@ -1084,19 +1084,25 @@ impl TitleBar {
             })
         });
 
+        if worktree_button.is_none() && branch_picker.is_none() {
+            return None;
+        }
+
+        let show_separator = worktree_button.is_some() && branch_picker.is_some();
+
         Some(
             h_flex()
                 .gap_px()
-                .child(worktree_button)
-                .when_some(branch_picker, |this, branch_picker| {
+                .children(worktree_button)
+                .when(show_separator, |this| {
                     this.child(
                         Label::new("/")
                             .size(LabelSize::Small)
                             .color(Color::Muted)
                             .alpha(0.25),
                     )
-                    .child(branch_picker)
                 })
+                .children(branch_picker)
                 .into_any_element(),
         )
     }

crates/title_bar/src/title_bar_settings.rs

@@ -7,6 +7,7 @@ pub struct TitleBarSettings {
     pub show_onboarding_banner: bool,
     pub show_user_picture: bool,
     pub show_branch_name: bool,
+    pub show_worktree_name: bool,
     pub show_project_items: bool,
     pub show_sign_in: bool,
     pub show_user_menu: bool,
@@ -22,6 +23,7 @@ impl Settings for TitleBarSettings {
             show_onboarding_banner: content.show_onboarding_banner.unwrap(),
             show_user_picture: content.show_user_picture.unwrap(),
             show_branch_name: content.show_branch_name.unwrap(),
+            show_worktree_name: content.show_worktree_name.unwrap(),
             show_project_items: content.show_project_items.unwrap(),
             show_sign_in: content.show_sign_in.unwrap(),
             show_user_menu: content.show_user_menu.unwrap(),

docs/src/reference/all-settings.md

@@ -4943,6 +4943,7 @@ Run the {#action theme_selector::Toggle} action in the command palette to see a
   "title_bar": {
     "show_branch_status_icon": false,
     "show_branch_name": true,
+    "show_worktree_name": true,
     "show_project_items": true,
     "show_onboarding_banner": true,
     "show_user_picture": true,
@@ -4958,6 +4959,7 @@ Run the {#action theme_selector::Toggle} action in the command palette to see a
 
 - `show_branch_status_icon`: Whether to show git status indicators on the branch icon in the titlebar
 - `show_branch_name`: Whether to show the branch name button in the titlebar
+- `show_worktree_name`: Whether to show the worktree name button in the titlebar
 - `show_project_items`: Whether to show the project host and name in the titlebar
 - `show_onboarding_banner`: Whether to show onboarding banners in the titlebar
 - `show_user_picture`: Whether to show user picture in the titlebar

docs/src/visual-customization.md

@@ -130,6 +130,7 @@ To disable this behavior use:
   "title_bar": {
     "show_branch_status_icon": false, // Show git status on branch icon
     "show_branch_name": true,       // Show/hide branch name
+    "show_worktree_name": true,     // Show/hide worktree name
     "show_project_items": true,     // Show/hide project host and name
     "show_onboarding_banner": true, // Show/hide onboarding banners
     "show_user_picture": true,      // Show/hide user avatar