3 files changed, 23 insertions, 4 deletions
diff --git a/lib/msgstore.go b/lib/msgstore.go
index 48a105e..b346129 100644
--- a/lib/msgstore.go
+++ b/lib/msgstore.go
@@ -33,12 +33,14 @@ type MessageStore struct {
 	pendingHeaders map[uint32]interface{}
 	worker         *types.Worker
 
-	triggerNewEmail func(*models.MessageInfo)
+	triggerNewEmail        func(*models.MessageInfo)
+	triggerDirectoryChange func()
 }
 
 func NewMessageStore(worker *types.Worker,
 	dirInfo *models.DirectoryInfo,
-	triggerNewEmail func(*models.MessageInfo)) *MessageStore {
+	triggerNewEmail func(*models.MessageInfo),
+	triggerDirectoryChange func()) *MessageStore {
 
 	return &MessageStore{
 		Deleted: make(map[uint32]interface{}),
@@ -52,7 +54,8 @@ func NewMessageStore(worker *types.Worker,
 		pendingHeaders: make(map[uint32]interface{}),
 		worker:         worker,
 
-		triggerNewEmail: triggerNewEmail,
+		triggerNewEmail:        triggerNewEmail,
+		triggerDirectoryChange: triggerDirectoryChange,
 	}
 }
 
@@ -147,6 +150,7 @@ func merge(to *models.MessageInfo, from *models.MessageInfo) {
 
 func (store *MessageStore) Update(msg types.WorkerMessage) {
 	update := false
+	directoryChange := false
 	switch msg := msg.(type) {
 	case *types.DirectoryInfo:
 		store.DirInfo = *msg.Info
@@ -159,6 +163,7 @@ func (store *MessageStore) Update(msg types.WorkerMessage) {
 				newMap[uid] = msg
 			} else {
 				newMap[uid] = nil
+				directoryChange = true
 			}
 		}
 		store.Messages = newMap
@@ -225,6 +230,10 @@ func (store *MessageStore) Update(msg types.WorkerMessage) {
 	if update {
 		store.update()
 	}
+
+	if directoryChange && store.triggerDirectoryChange != nil {
+		store.triggerDirectoryChange()
+	}
 }
 
 func (store *MessageStore) OnUpdate(fn func(store *MessageStore)) {
diff --git a/lib/ui/interfaces.go b/lib/ui/interfaces.go
index 9008ea7..2f63424 100644
--- a/lib/ui/interfaces.go
+++ b/lib/ui/interfaces.go
@@ -23,6 +23,10 @@ type Interactive interface {
 	Focus(focus bool)
 }
 
+type Beeper interface {
+	OnBeep(func() error)
+}
+
 type Simulator interface {
 	// Queues up the given input events for simulation
 	Simulate(events []tcell.Event)
@@ -33,6 +37,11 @@ type DrawableInteractive interface {
 	Interactive
 }
 
+type DrawableInteractiveBeeper interface {
+	DrawableInteractive
+	Beeper
+}
+
 // A drawable which contains other drawables
 type Container interface {
 	Drawable
diff --git a/lib/ui/ui.go b/lib/ui/ui.go
index 13b640b..4c3dd34 100644
--- a/lib/ui/ui.go
+++ b/lib/ui/ui.go
@@ -19,7 +19,7 @@ type UI struct {
 }
 
 func Initialize(conf *config.AercConfig,
-	content DrawableInteractive) (*UI, error) {
+	content DrawableInteractiveBeeper) (*UI, error) {
 
 	screen, err := tcell.NewScreen()
 	if err != nil {
@@ -57,6 +57,7 @@ func Initialize(conf *config.AercConfig,
 	content.OnInvalidate(func(_ Drawable) {
 		atomic.StoreInt32(&state.invalid, 1)
 	})
+	content.OnBeep(screen.Beep)
 	content.Focus(true)
 
 	return &state, nil