tui/tabbar: Prevent closing the last remaining tab

vvoland · vvoland · commit f24eb5c8317e · 2026-02-19T11:18:31.000+01:00
Ignore close tab key (Ctrl+W) when only one tab remains open.

This prevents accidentally closing the entire application and preserves
muscle memory for users who expect Ctrl+W to delete the last word in
single-tab scenarios.

Signed-off-by: Paweł Gronowski &lt;pawel.gronowski@docker.com&gt;
diff --git a/pkg/tui/components/tabbar/tabbar.go b/pkg/tui/components/tabbar/tabbar.go
@@ -219,7 +219,7 @@ func (t *TabBar) Update(msg tea.Msg) tea.Cmd {
 			return core.CmdHandler(messages.SwitchTabMsg{SessionID: t.tabs[prevIdx].SessionID})
 
 		case key.Matches(msg, t.keyMap.CloseTab):
-			if len(t.tabs) == 0 {
+			if len(t.tabs) <= 1 {
 				return nil
 			}
 			return core.CmdHandler(messages.CloseTabMsg{SessionID: t.tabs[t.activeIdx].SessionID})

Original file line number	Diff line number	Diff line change
`@@ -219,7 +219,7 @@ func (t *TabBar) Update(msg tea.Msg) tea.Cmd {`
`219`	`219`	`return core.CmdHandler(messages.SwitchTabMsg{SessionID: t.tabs[prevIdx].SessionID})`
`220`	`220`
`221`	`221`	`case key.Matches(msg, t.keyMap.CloseTab):`
`222`		`- if len(t.tabs) == 0 {`
	`222`	`+ if len(t.tabs) <= 1 {`
`223`	`223`	`return nil`
`224`	`224`	`}`
`225`	`225`	`return core.CmdHandler(messages.CloseTabMsg{SessionID: t.tabs[t.activeIdx].SessionID})`