Setup phone UI

Source/NakedDesire/UI/Phone/PhoneScreenWidget.cpp

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+// © 2025 Naked People Team. All Rights Reserved.
+
+#include "PhoneScreenWidget.h"
+
+#include "PhoneHomeScreenWidget.h"
+#include "Components/Button.h"
+#include "Widgets/CommonActivatableWidgetContainer.h"
+
+void UPhoneScreenWidget::NativeOnActivated()
+{
+	Super::NativeOnActivated();
+
+	HomeButton->OnClicked.AddUniqueDynamic(this, &UPhoneScreenWidget::GoHome);
+
+	// Open on the home screen every time the phone is brought up.
+	if (AppStack)
+	{
+		AppStack->ClearWidgets();
+		PushHomeScreen();
+	}
+}
+
+UWidget* UPhoneScreenWidget::NativeGetDesiredFocusTarget() const
+{
+	return HomeButton;
+}
+
+void UPhoneScreenWidget::OpenApp(TSubclassOf<UPhoneAppWidget> AppClass)
+{
+	if (AppStack && AppClass)
+	{
+		AppStack->AddWidget<UPhoneAppWidget>(AppClass);
+	}
+}
+
+UPhoneHomeScreenWidget* UPhoneScreenWidget::PushHomeScreen()
+{
+	if (!AppStack || !HomeScreenClass)
+	{
+		return nullptr;
+	}
+
+	HomeScreen = AppStack->AddWidget<UPhoneHomeScreenWidget>(HomeScreenClass);
+	if (HomeScreen)
+	{
+		HomeScreen->OnAppSelected.BindUObject(this, &UPhoneScreenWidget::OpenApp);
+	}
+	return HomeScreen;
+}
+
+void UPhoneScreenWidget::GoHome()
+{
+	if (!AppStack)
+	{
+		return;
+	}
+
+	// Already on the home screen — nothing to do.
+	if (HomeScreen && AppStack->GetActiveWidget() == HomeScreen)
+	{
+		DeactivateWidget();
+	}
+
+	// Drop every app and re-seat the home screen at the base of the stack.
+	AppStack->ClearWidgets();
+	PushHomeScreen();
+}