void UWidgetBlueprintGeneratedClass::InitializeWidget(UUserWidget* UserWidget) const
{
#if WITH_EDITORONLY_DATA
UWidgetTree* ClonedTree = DuplicateObject<UWidgetTree>(DesignerWidgetTree ? DesignerWidgetTree : WidgetTree, UserWidget);
#else
UWidgetTree* ClonedTree = DuplicateObject<UWidgetTree>(WidgetTree, UserWidget);
#endif
#if WITH_EDITOR
UserWidget->WidgetGeneratedBy = ClassGeneratedBy;
#endif
if ( ClonedTree )
{
ClonedTree->SetFlags(RF_Transactional);
UserWidget->WidgetTree = ClonedTree;
UClass* WidgetBlueprintClass = UserWidget->GetClass();
for(UWidgetAnimation* Animation : Animations)
{
UWidgetAnimation* Anim = DuplicateObject<UWidgetAnimation>( Animation, UserWidget );
if( Anim->MovieScene )
{
// Find property with the same name as the template and assign the new widget to it.
UObjectPropertyBase* Prop = FindField<UObjectPropertyBase>(WidgetBlueprintClass, Anim->MovieScene->GetFName());
if(Prop)
{
Prop->SetObjectPropertyValue_InContainer(UserWidget, Anim);
}
}
}
ClonedTree->ForEachWidget([&] (UWidget* Widget) {
// Not fatal if NULL, but shouldn't happen
if ( !ensure(Widget != nullptr) )
{
return;
}
#if WITH_EDITOR
Widget->WidgetGeneratedBy = ClassGeneratedBy;
#endif
// TODO UMG Make this an FName
FString VariableName = Widget->GetName();
Widget->bCreatedByConstructionScript = true; // Indicate it comes from a blueprint so it gets cleared when we rerun construction scripts
// Find property with the same name as the template and assign the new widget to it.
UObjectPropertyBase* Prop = FindField<UObjectPropertyBase>(WidgetBlueprintClass, *VariableName);
if ( Prop )
{
Prop->SetObjectPropertyValue_InContainer(UserWidget, Widget);
UObject* Value = Prop->GetObjectPropertyValue_InContainer(UserWidget);
check(Value == Widget);
}
// Perform binding
for ( const FDelegateRuntimeBinding& Binding : Bindings )
{
//TODO UMG Make this faster.
if ( Binding.ObjectName == VariableName )
{
UDelegateProperty* DelegateProperty = FindField<UDelegateProperty>(Widget->GetClass(), FName(*( Binding.PropertyName.ToString() + TEXT("Delegate") )));
if ( !DelegateProperty )
{
DelegateProperty = FindField<UDelegateProperty>(Widget->GetClass(), Binding.PropertyName);
}
if ( DelegateProperty )
{
bool bSourcePathBound = false;
if ( Binding.SourcePath.IsValid() )
{
bSourcePathBound = Widget->AddBinding(DelegateProperty, UserWidget, Binding.SourcePath);
}
// If no native binder is found then the only possibility is that the binding is for
// a delegate that doesn't match the known native binders available and so we
// fallback to just attempting to bind to the function directly.
if ( bSourcePathBound == false )
{
FScriptDelegate* ScriptDelegate = DelegateProperty->GetPropertyValuePtr_InContainer(Widget);
if ( ScriptDelegate )
{
ScriptDelegate->BindUFunction(UserWidget, Binding.FunctionName);
}
}
}
}
}
// Initialize Navigation Data
if (Widget->Navigation)
{
Widget->Navigation->ResolveExplictRules(ClonedTree);
}
#if WITH_EDITOR
Widget->ConnectEditorData();
#endif
});
// Bind any delegates on widgets
BindDynamicDelegates(UserWidget);
//TODO UMG Add OnWidgetInitialized?
}
}
