app(xkcdreader): init,get fyne.App from anywhere

xkcdreader/app.go

@@ -17,10 +17,15 @@ import (
 
 const appGreeting = "welcome to go-xkcdreader"
 
+var a fyne.App
+
 // RunApp performs sets up and runs the main application
 func RunApp() {
-	a := app.New()
-	w := a.NewWindow(cmd.GetAppName())
+	// initialize the fyne application
+	newApp()
+
+	goxkcdreader := getApp()
+	w := goxkcdreader.NewWindow(cmd.GetAppName())
 
 	centered := container.New(
 		layout.NewHBoxLayout(),
@@ -40,6 +45,15 @@ func RunApp() {
 	w.ShowAndRun()
 }
 
+func newApp() {
+	a = app.New()
+	log.Println("Created a new fyne application")
+}
+
+func getApp() fyne.App {
+	return a
+}
+
 // makeGreeting creates a greeting label
 func makeGreeting() *widget.Label {
 	w := widget.NewLabel(appGreeting)

xkcdreader/app_test.go

@@ -92,3 +92,26 @@ func TestTabs(t *testing.T) {
 		FAIL
 	*/
 }
+
+func TestNewApp(t *testing.T) {
+	// init the application
+	newApp()
+
+	// get the application from var a
+	testA := a
+
+	if testA == nil {
+		t.Error("Failed to init application")
+	}
+}
+
+func TestGetApp(t *testing.T) {
+	// init the application
+	newApp()
+
+	got := getApp()
+
+	if got == nil {
+		t.Error("Failed to get application pointer using getApp()")
+	}
+}