tracklist column visibility menu can be dismissed with escape key

ui/controller/controller.go

@@ -87,6 +87,9 @@ func (m *Controller) ConnectTracklistActions(tracklist *widgets.Tracklist) {
 	tracklist.OnShowArtistPage = func(artistID string) {
 		m.NavigateTo(ArtistRoute(artistID))
 	}
+	tracklist.OnColumnVisibilityMenuShown = func(pop *widget.PopUp) {
+		m.ClosePopUpOnEscape(pop)
+	}
 }
 
 func (m *Controller) PromptForFirstServer() {

ui/widgets/listheader.go

@@ -20,7 +20,8 @@ type ListColumn struct {
 type ListHeader struct {
 	widget.BaseWidget
 
-	OnColumnVisibilityChanged func(int, bool)
+	OnColumnVisibilityChanged   func(int, bool)
+	OnColumnVisibilityMenuShown func(*widget.PopUp)
 
 	columns       []ListColumn
 	columnVisible []bool
@@ -84,6 +85,9 @@ func (l *ListHeader) TappedSecondary(e *fyne.PointEvent) {
 	}
 	pop := widget.NewPopUp(l.popUpMenu, fyne.CurrentApp().Driver().CanvasForObject(l))
 	pop.ShowAtPosition(e.AbsolutePosition)
+	if l.OnColumnVisibilityMenuShown != nil {
+		l.OnColumnVisibilityMenuShown(pop)
+	}
 }
 
 func (l *ListHeader) setupPopUpMenu() {

ui/widgets/tracklist.go

@@ -49,6 +49,8 @@ type Tracklist struct {
 	OnShowArtistPage func(artistID string)
 	OnShowAlbumPage  func(albumID string)
 
+	OnColumnVisibilityMenuShown func(*widget.PopUp)
+
 	visibleColumns []bool
 
 	selectionMgr  util.ListSelectionManager
@@ -69,6 +71,11 @@ func NewTracklist(tracks []*subsonic.Child) *Tracklist {
 	t.colLayout = layouts.NewColumnsLayout([]float32{35, -1, -1, -1, 60, 60, 47, 65, 75})
 	t.buildHeader()
 	t.hdr.OnColumnVisibilityChanged = t.setColumnVisible
+	t.hdr.OnColumnVisibilityMenuShown = func(pop *widget.PopUp) {
+		if t.OnColumnVisibilityMenuShown != nil {
+			t.OnColumnVisibilityMenuShown(pop)
+		}
+	}
 	playingIcon := container.NewCenter(container.NewHBox(NewHSpace(2), widget.NewIcon(theme.MediaPlayIcon())))
 	t.list = widget.NewList(
 		func() int { return len(t.Tracks) },