Remove extraneous app.Draw() calls by having app.Draw() in its own routine

main.go

@@ -342,6 +342,30 @@ func makeWidgets(app *tview.Application, pages *tview.Pages) []wtf.Wtfable {
 	return widgets
 }
 
+func enableAppRefresh(app *tview.Application) {
+	defaultInterval := 100
+
+	refreshInterval := Config.UInt("wtf.refreshInterval", defaultInterval)
+	if refreshInterval < defaultInterval {
+		refreshInterval = defaultInterval
+	}
+
+	interval := time.Duration(refreshInterval) * time.Millisecond
+
+	tick := time.NewTicker(interval)
+	quit := make(chan struct{})
+
+	for {
+		select {
+		case <-tick.C:
+			app.Draw()
+		case <-quit:
+			tick.Stop()
+			return
+		}
+	}
+}
+
 /* -------------------- Main -------------------- */
 
 func main() {
@@ -376,6 +400,7 @@ func main() {
 	app.SetInputCapture(keyboardIntercept)
 
 	go watchForConfigChanges(app, flags.Config, display.Grid, pages)
+	go enableAppRefresh(app)
 
 	if err := app.SetRoot(pages, true).Run(); err != nil {
 		fmt.Printf("Error: %v\n", err)

modules/todo/widget.go

@@ -265,7 +265,6 @@ func (widget *Widget) modalFocus(form *tview.Form) {
 	frame := widget.modalFrame(form)
 	widget.pages.AddPage("modal", frame, false, true)
 	widget.app.SetFocus(frame)
-	widget.app.Draw()
 }
 
 func (widget *Widget) modalForm(lbl, text string) *tview.Form {

wtf/focus_tracker.go

@@ -150,9 +150,7 @@ func (tracker *FocusTracker) focus(idx int) {
 
 	view := widget.TextView()
 	view.SetBorderColor(ColorFor(Config.UString("wtf.colors.border.focused", "gray")))
-
 	tracker.App.SetFocus(view)
-	tracker.App.Draw()
 }
 
 func (tracker *FocusTracker) focusables() []Wtfable {

wtf/helpful_widget.go

@@ -33,5 +33,4 @@ func (widget *HelpfulWidget) ShowHelp() {
 
 	widget.pages.AddPage("help", modal, false, true)
 	widget.app.SetFocus(modal)
-	widget.app.Draw()
 }

wtf/text_widget.go

@@ -45,10 +45,6 @@ func NewTextWidget(app *tview.Application, commonSettings *cfg.Common, focusable
 
 	widget.View = widget.addView()
 
-	widget.View.SetChangedFunc(func() {
-		app.Draw()
-	})
-
 	return widget
 }