GODT-1336: Fix showing window on startup

internal/events/events.go

@@ -54,4 +54,5 @@ func SetupEvents(listener listener.Listener) {
 	listener.SetBuffer(InternetOffEvent)
 	listener.SetBuffer(UpgradeApplicationEvent)
 	listener.SetBuffer(TLSCertIssue)
+	listener.SetBuffer(UserRefreshEvent)
 }

internal/frontend/qml/Bridge_test.qml

@@ -330,6 +330,16 @@ Window {
 
                 }
 
+                CheckBox {
+                    id: showOnStartupCheckbox
+                    colorScheme: root.colorScheme
+                    text: "Show on startup"
+                    checked: root.showOnStartup
+                    onCheckedChanged: {
+                        root.showOnStartup = checked
+                    }
+                }
+
                 Button {
                     colorScheme: root.colorScheme
                     //Layout.fillWidth: true
@@ -338,7 +348,6 @@ Window {
                     enabled: bridge === undefined || bridge === null
                     onClicked: {
                         bridge = bridgeComponent.createObject()
-                        if (true) bridge._mainWindow.showAndRise()
                     }
                 }
 
@@ -630,6 +639,7 @@ Window {
 
     property string goos: "linux"
 
+    property bool showOnStartup: true // this actually needs to be false, but since we use Bridge_test for testing purpose - lets default this to true just for convenience
     property bool dockIconVisible: false
 
     // this signals are used only when trying to login with new user (i.e. not in users model)

internal/frontend/qml/WelcomeGuide.qml

@@ -224,13 +224,7 @@ Item {
                         Layout.preferredWidth: 320
                         Layout.fillWidth: true
 
-                        username: {
-                            if (root.backend.users.count !== 1) return ""
-                            var user = root.backend.users.get(0)
-                            if (user) return ""
-                            if (user.loggedIn)  return ""
-                            return user.username
-                        }
+                        username: root.backend.users.count === 1 && root.backend.users.get(0) && root.backend.users.get(0).loggedIn === false ? root.backend.users.get(0).username : ""
                         backend: root.backend
                     }
 

internal/frontend/qt/frontend.go

@@ -15,6 +15,7 @@
 // You should have received a copy of the GNU General Public License
 // along with ProtonMail Bridge.  If not, see <https://www.gnu.org/licenses/>.
 
+//go:build build_qt
 // +build build_qt
 
 // Package qt provides communication between Qt/QML frontend and Go backend
@@ -64,7 +65,7 @@ type FrontendQt struct {
 	initializationDone sync.Once
 
 	app    *widgets.QApplication
-	engine *qml.QQmlApplicationEngine
+	engine *qml.QQmlEngine
 	qml    *QMLBackend
 }
 

internal/frontend/qt/frontend_init.go

@@ -15,6 +15,7 @@
 // You should have received a copy of the GNU General Public License
 // along with ProtonMail Bridge.  If not, see <https://www.gnu.org/licenses/>.
 
+//go:build build_qt
 // +build build_qt
 
 package qt
@@ -47,7 +48,8 @@ func (f *FrontendQt) initiateQtApplication() error {
 	f.app.SetQuitOnLastWindowClosed(false)
 
 	// QML Engine and path
-	f.engine = qml.NewQQmlApplicationEngine(f.app)
+	f.engine = qml.NewQQmlEngine(f.app)
+	rootComponent := qml.NewQQmlComponent2(f.engine, f.engine)
 
 	f.qml = NewQMLBackend(f.engine)
 	f.qml.setup(f)
@@ -60,14 +62,25 @@ func (f *FrontendQt) initiateQtApplication() error {
 	quickcontrols2.QQuickStyle_AddStylePath("qrc:/qml/")
 	quickcontrols2.QQuickStyle_SetStyle("Proton")
 
-	f.engine.Load(core.NewQUrl3("qrc:/qml/Bridge.qml", 0))
+	// Before loading a component we should load translations.
+	// See https://github.com/qt/qtdeclarative/blob/bedef212a74a62452ed31d7f65536a6c67881fc4/src/qml/qml/qqmlapplicationengine.cpp#L69 as example.
 
-	// Check QML is loaded properly.
-	if len(f.engine.RootObjects()) == 0 {
+	rootComponent.LoadUrl(core.NewQUrl3("qrc:/qml/Bridge.qml", 0))
+
+	if rootComponent.Status() != qml.QQmlComponent__Ready {
 		return errors.New("QML not loaded properly")
 	}
 
-	f.engine.RootObjects()[0].SetProperty("backend", f.qml.ToVariant())
+	// Instead of creating component right away we use BeginCreate to stop right before binding evaluation.
+	// That is needed to set backend property so all bindings will be calculated properly.
+	rootObject := rootComponent.BeginCreate(f.engine.RootContext())
+	// Check QML is loaded properly.
+	if rootObject == nil {
+		return errors.New("QML not created properly")
+	}
+
+	rootObject.SetProperty("backend", f.qml.ToVariant())
+	rootComponent.CompleteCreate()
 
 	return nil
 }