Have keyboard widget manage its own help

Define help with keys
This means that keys and help are automatically in sync
This means that you can't define keys, but forget help
This unfortunately also means that formatting may not be quite as good

modules/spotify/keyboard.go

@@ -5,10 +5,10 @@ import (
 )
 
 func (widget *Widget) initializeKeyboardControls() {
-	widget.SetKeyboardChar("/", widget.ShowHelp)
-	widget.SetKeyboardChar("h", widget.previous)
-	widget.SetKeyboardChar("l", widget.next)
-	widget.SetKeyboardChar(" ", widget.playPause)
+	widget.SetKeyboardChar("/", widget.ShowHelp, "Show/hide this help prompt")
+	widget.SetKeyboardChar("h", widget.previous, "Select previous item")
+	widget.SetKeyboardChar("l", widget.next, "Select next item")
+	widget.SetKeyboardChar(" ", widget.playPause, "Play/pause song")
 }
 
 func (widget *Widget) previous() {

modules/spotify/widget.go

@@ -8,16 +8,8 @@ import (
 	"github.com/wtfutil/wtf/wtf"
 )
 
-const HelpText = `
-	To control Spotify use:
-		[Spacebar] for Play & Pause
-		[h] for Previous Song
-		[l] for Next Song
-`
-
 // A Widget represents a Spotify widget
 type Widget struct {
-	wtf.HelpfulWidget
 	wtf.KeyboardWidget
 	wtf.TextWidget
 
@@ -30,8 +22,7 @@ type Widget struct {
 func NewWidget(app *tview.Application, pages *tview.Pages, settings *Settings) *Widget {
 	spotifyClient := spotigopher.NewClient()
 	widget := Widget{
-		HelpfulWidget:  wtf.NewHelpfulWidget(app, pages, HelpText),
-		KeyboardWidget: wtf.NewKeyboardWidget(),
+		KeyboardWidget: wtf.NewKeyboardWidget(app, pages, settings.common),
 		TextWidget:     wtf.NewTextWidget(app, settings.common, true),
 
 		Info:          spotigopher.Info{},
@@ -49,7 +40,7 @@ func NewWidget(app *tview.Application, pages *tview.Pages, settings *Settings) *
 	widget.View.SetWordWrap(true)
 	widget.View.SetTitle(fmt.Sprint("[green]Spotify[white]"))
 
-	widget.HelpfulWidget.SetView(widget.View)
+	widget.KeyboardWidget.SetView(widget.View)
 
 	return &widget
 }