Add ability to explicitly stop modules via a QuitChan

wtf/bargraph.go

@@ -17,6 +17,7 @@ type BarGraph struct {
 	key            string
 	maxStars       int
 	name           string
+	quitChan       chan bool
 	refreshing     bool
 	starChar       string
 
@@ -37,9 +38,11 @@ func NewBarGraph(app *tview.Application, name string, settings *cfg.Common, focu
 		focusable:      focusable,
 		maxStars:       settings.Config.UInt("graphStars", 20),
 		name:           settings.Title,
+		quitChan:       make(chan bool),
 		starChar:       settings.Config.UString("graphIcon", "|"),
-		RefreshInt:     settings.RefreshInterval,
 		commonSettings: settings,
+
+		RefreshInt: settings.RefreshInterval,
 	}
 
 	widget.View = widget.addView()
@@ -90,6 +93,10 @@ func (widget *BarGraph) Name() string {
 	return widget.name
 }
 
+func (widget *BarGraph) QuitChan() chan bool {
+	return widget.quitChan
+}
+
 // Refreshing returns TRUE if the widget is currently refreshing its data, FALSE if it is not
 func (widget *BarGraph) Refreshing() bool {
 	return widget.refreshing
@@ -104,6 +111,11 @@ func (widget *BarGraph) SetFocusChar(char string) {
 	return
 }
 
+func (widget *BarGraph) Stop() {
+	widget.enabled = false
+	widget.quitChan <- true
+}
+
 func (widget *BarGraph) TextView() *tview.TextView {
 	return widget.View
 }

wtf/stoppable.go

@@ -0,0 +1,6 @@
+package wtf
+
+// Stoppable is the interface that enforces a stoppable state
+type Stoppable interface {
+	Stop()
+}

wtf/text_widget.go

@@ -15,6 +15,7 @@ type TextWidget struct {
 	focusable       bool
 	focusChar       string
 	name            string
+	quitChan        chan bool
 	refreshing      bool
 	refreshInterval int
 	app             *tview.Application
@@ -32,6 +33,7 @@ func NewTextWidget(app *tview.Application, commonSettings *cfg.Common, focusable
 		focusable:       focusable,
 		focusChar:       commonSettings.FocusChar(),
 		name:            commonSettings.Name,
+		quitChan:        make(chan bool),
 		refreshing:      false,
 		refreshInterval: commonSettings.RefreshInterval,
 	}
@@ -97,6 +99,10 @@ func (widget *TextWidget) HelpText() string {
 	return fmt.Sprintf("\n  There is no help available for widget %s", widget.commonSettings.Module.Type)
 }
 
+func (widget *TextWidget) QuitChan() chan bool {
+	return widget.quitChan
+}
+
 func (widget *TextWidget) Name() string {
 	return widget.name
 }
@@ -115,6 +121,11 @@ func (widget *TextWidget) SetFocusChar(char string) {
 	widget.focusChar = char
 }
 
+func (widget *TextWidget) Stop() {
+	widget.enabled = false
+	widget.quitChan <- true
+}
+
 func (widget *TextWidget) String() string {
 	return widget.name
 }

wtf/wtfable.go

@@ -10,12 +10,14 @@ import (
 type Wtfable interface {
 	Enablable
 	Schedulable
+	Stoppable
 
 	BorderColor() string
 	ConfigText() string
 	FocusChar() string
 	Focusable() bool
 	HelpText() string
+	QuitChan() chan bool
 	Name() string
 	SetFocusChar(string)
 	TextView() *tview.TextView