Actor details can show flow tags in selected actors

Source/FlowEditor/Private/DetailCustomizations/FlowActorDetails.cpp

@@ -0,0 +1,57 @@
+// Fill out your copyright notice in the Description page of Project Settings.
+
+
+#include "DetailCustomizations/FlowActorDetails.h"
+#include "ActorDetailsDelegates.h"
+#include "DetailCategoryBuilder.h"
+#include "DetailLayoutBuilder.h"
+#include "FlowComponent.h"
+#include "Graph/FlowGraphSettings.h"
+
+
+FFlowActorDetails::~FFlowActorDetails()
+{
+	OnExtendActorDetails.RemoveAll(this);
+}
+
+void FFlowActorDetails::Register()
+{
+	if (GetDefault<UFlowGraphSettings>()->bShowFlowTagsInActorDetails)
+	{
+		OnExtendActorDetails.AddSP(this, &FFlowActorDetails::AddFlowCategory);
+	}	
+}
+
+void FFlowActorDetails::AddFlowCategory(class IDetailLayoutBuilder& Details, const FGetSelectedActors& GetSelectedActors)
+{
+	if (GetSelectedActors.IsBound())
+	{
+		TArray<UObject*> Components;
+		const TArray<TWeakObjectPtr<AActor>>& SelectedActors = GetSelectedActors.Execute();
+		for (auto& WeakActor : SelectedActors)
+		{
+			if (const AActor* Actor = WeakActor.Get())
+			{
+				TInlineComponentArray<UFlowComponent*> FlowComps(Actor);		
+				Components.Append(FlowComps);
+			}
+		}
+
+		if (!Components.IsEmpty())
+		{
+			const ECategoryPriority::Type Priority = GetDefault<UFlowGraphSettings>()->bMarkFlowCategoryImportant ? ECategoryPriority::Important : ECategoryPriority::Default;
+
+			const FText CategoryName = FText::Format(NSLOCTEXT("FlowDetails", "FlowCategoryFormat", "Flow Components: {0} "), FText::AsNumber(Components.Num()));
+			const FString Tooltip = FString::JoinBy(Components, LINE_TERMINATOR, [](const UObject* Object)
+			{				
+				const UActorComponent* Component = CastChecked<UActorComponent>(Object);
+				const FString Actor = Component->GetOwner() ? Component->GetOwner()->GetActorNameOrLabel() : TEXT("None");
+				return FString(Actor + TEXT(".") + Object->GetName());				
+			});
+
+			IDetailCategoryBuilder& Category = Details.EditCategory(TEXT("_FlowDetails"), CategoryName, Priority);
+			Category.SetToolTip(FText::FromString(Tooltip));
+			Category.AddExternalObjectProperty(Components, GET_MEMBER_NAME_CHECKED(UFlowComponent, IdentityTags));
+		}
+	}
+}

Source/FlowEditor/Private/FlowEditorModule.cpp

@@ -31,6 +31,7 @@
 #include "DetailCustomizations/FlowAssetParamsPtrCustomization.h"
 #include "DetailCustomizations/FlowDataPinValueOwnerCustomizations.h"
 #include "DetailCustomizations/FlowDataPinValueStandardCustomizations.h"
+#include "DetailCustomizations/FlowActorDetails.h"
 
 #include "FlowAsset.h"
 #include "AddOns/FlowNodeAddOn.h"
@@ -90,6 +91,9 @@ void FFlowEditorModule::StartupModule()
 	FlowTrackCreateEditorHandle = SequencerModule.RegisterTrackEditor(FOnCreateTrackEditor::CreateStatic(&FFlowTrackEditor::CreateTrackEditor));
 
 	RegisterDetailCustomizations();
+
+	ActorDetails = MakeShared<FFlowActorDetails>();
+	ActorDetails->Register();
 
 	// register asset indexers
 	if (FModuleManager::Get().IsModuleLoaded(AssetSearchModuleName))
@@ -120,6 +124,8 @@ void FFlowEditorModule::ShutdownModule()
 	UnregisterDetailCustomizations();
 
 	UnregisterAssets();
+
+	ActorDetails.Reset();
 
 	// unregister track editors
 	ISequencerModule& SequencerModule = FModuleManager::Get().LoadModuleChecked<ISequencerModule>("Sequencer");

Source/FlowEditor/Public/DetailCustomizations/FlowActorDetails.h

@@ -0,0 +1,17 @@
+// Fill out your copyright notice in the Description page of Project Settings.
+
+#pragma once
+
+#include "CoreMinimal.h"
+#include "ActorDetailsDelegates.h"
+
+/**
+ * 
+ */
+class FLOWEDITOR_API FFlowActorDetails : public TSharedFromThis<FFlowActorDetails>
+{
+public:	
+	virtual ~FFlowActorDetails();
+	virtual void Register();
+	virtual void AddFlowCategory(class IDetailLayoutBuilder& Details, const FGetSelectedActors& GetSelectedActors);
+};

Source/FlowEditor/Public/FlowEditorModule.h

@@ -32,6 +32,7 @@ class FLOWEDITOR_API FFlowEditorModule : public IModuleInterface
 
 	bool bIsRegisteredForAssetChanges = false;
 
+	TSharedPtr<class FFlowActorDetails> ActorDetails;
 public:
 	virtual void StartupModule() override;
 	virtual void ShutdownModule() override;

Source/FlowEditor/Public/Graph/FlowGraphSettings.h

@@ -181,6 +181,14 @@ class FLOWEDITOR_API UFlowGraphSettings : public UDeveloperSettings
 
 	UPROPERTY(EditAnywhere, config, Category = "Wires", meta = (ClampMin = 0.0f))
 	float SelectedWireThickness;
+
+
+	UPROPERTY(EditAnywhere, config, Category = "Details", meta = (ConfigRestartRequired = true))
+	bool bShowFlowTagsInActorDetails = true;
+
+	/** FlowComponent only. Move category Flow to the top of details panel */
+	UPROPERTY(EditAnywhere, config, Category = "Details")
+	bool bMarkFlowCategoryImportant = true;
 
 public:
 	virtual FName GetCategoryName() const override { return FName("Flow Graph"); }