Toggle files directory grouping with d key

2 files changed, 23 insertions, 0 deletions

diff --git a/internal/tui/dashboard/model.go b/internal/tui/dashboard/model.go
index 822f88f..1a770f3 100644
--- a/internal/tui/dashboard/model.go
+++ b/internal/tui/dashboard/model.go
@@ -138,6 +138,11 @@ func (m Model) handleKey(msg tea.KeyMsg) (tea.Model, tea.Cmd) {
 			snap := m.snapshot()
 			cmd = func() tea.Msg { return messages.StatsTickMsg{Snap: snap} }
 			handled = true
+		case key.Matches(msg, m.keys.DirGroup):
+			if m.activeTab == TabFiles {
+				m.filesDirGrouped = !m.filesDirGrouped
+				handled = true
+			}
 		}
 	}
 	if !handled {
diff --git a/internal/tui/dashboard/model_test.go b/internal/tui/dashboard/model_test.go
index 29b698d..1f479ab 100644
--- a/internal/tui/dashboard/model_test.go
+++ b/internal/tui/dashboard/model_test.go
@@ -140,6 +140,24 @@ func TestFilesTabScrollsWithJK(t *testing.T) {
 	}
 }
 
+func TestDirGroupKeyTogglesOnlyOnFilesTab(t *testing.T) {
+	m := NewModelWithConfig(nil, nil, 250, common.DefaultKeyMap())
+	m.activeTab = TabFiles
+
+	next, _ := m.Update(tea.KeyMsg{Type: tea.KeyRunes, Runes: []rune{'d'}})
+	model := next.(Model)
+	if !model.filesDirGrouped {
+		t.Fatalf("expected filesDirGrouped to toggle on files tab")
+	}
+
+	model.activeTab = TabOverview
+	next, _ = model.Update(tea.KeyMsg{Type: tea.KeyRunes, Runes: []rune{'d'}})
+	model = next.(Model)
+	if !model.filesDirGrouped {
+		t.Fatalf("expected filesDirGrouped unchanged outside files tab")
+	}
+}
+
 func TestScrollOffsetDoesNotGrowUnbounded(t *testing.T) {
 	m := NewModelWithConfig(nil, nil, 250, common.DefaultKeyMap())
 	m.activeTab = TabSyscalls