Collapse phone subgroup browser after navigation

main_test.go

@@ -734,6 +734,46 @@ func TestUIPhoneGroupBarWithChildGroupsDoesNotPanic(t *testing.T) {
 	_ = u.groupBar(gtx)
 }
 
+func TestUIPhoneGroupBrowserStartsExpandedAtRootAndCollapsesInVisibleSubgroups(t *testing.T) {
+	t.Parallel()
+
+	u := newUIWithModel("phone", vault.Model{
+		Groups: [][]string{
+			{"Joe"},
+			{"Joe", "Internet"},
+		},
+	})
+
+	u.setCurrentPath(nil)
+	if !u.phoneGroupBrowserExpanded {
+		t.Fatal("phoneGroupBrowserExpanded = false at root, want true")
+	}
+
+	u.setCurrentPath([]string{"Joe", "Internet"})
+	if u.phoneGroupBrowserExpanded {
+		t.Fatal("phoneGroupBrowserExpanded = true inside visible subgroup, want false")
+	}
+}
+
+func TestUIPhoneGroupBrowserToggleDoesNotChangeCurrentGroupToolsState(t *testing.T) {
+	t.Parallel()
+
+	u := newUIWithModel("phone", vault.Model{
+		Groups: [][]string{
+			{"Joe"},
+			{"Joe", "Internet"},
+		},
+	})
+	u.groupControlsHidden = true
+	u.setCurrentPath([]string{"Joe"})
+	u.phoneGroupBrowserExpanded = false
+	u.phoneGroupBrowserExpanded = !u.phoneGroupBrowserExpanded
+
+	if !u.groupControlsHidden {
+		t.Fatal("groupControlsHidden = false, want phone group browser toggle to stay independent")
+	}
+}
+
 func TestUIAPIAuditSectionShowsRecordedEvents(t *testing.T) {
 	t.Parallel()