Files
UnrealEngine/Engine/Source/Editor/ContentBrowser/Public/ContentBrowserModule.h
2025-05-18 13:04:45 +08:00

271 lines
11 KiB
C++

// Copyright Epic Games, Inc. All Rights Reserved.
#pragma once
#include "AssetRegistry/AssetData.h"
#include "Containers/Array.h"
#include "ContentBrowserDelegates.h"
#include "CoreMinimal.h"
#include "Delegates/Delegate.h"
#include "Experimental/ContentBrowserViewExtender.h"
#include "HAL/PlatformCrt.h"
#include "MRUFavoritesList.h"
#include "Modules/ModuleInterface.h"
#include "Templates/SharedPointer.h"
#include "Templates/UniquePtr.h"
#include "Templates/UnrealTemplate.h"
#include "UObject/NameTypes.h"
class FContentBrowserPluginFilter;
class FMainMRUFavoritesList;
class FString;
class FText;
class IContentBrowserSingleton;
struct FARFilter;
struct FAssetData;
/** Extra state generator that adds an icon and a corresponding legend entry on an asset. */
class FAssetViewExtraStateGenerator
{
public:
FAssetViewExtraStateGenerator(FOnGenerateAssetViewExtraStateIndicators InIconGenerator, FOnGenerateAssetViewExtraStateIndicators InToolTipGenerator)
: IconGenerator(MoveTemp(InIconGenerator))
, ToolTipGenerator(MoveTemp(InToolTipGenerator))
, Handle(FDelegateHandle::GenerateNewHandle)
{}
/** Delegate called to generate an extra icon on an asset view. */
FOnGenerateAssetViewExtraStateIndicators IconGenerator;
/** Delegate called to generate an extra tooltip on an asset view. */
FOnGenerateAssetViewExtraStateIndicators ToolTipGenerator;
private:
/** The handle to this extra state generator. */
FDelegateHandle Handle;
friend class FContentBrowserModule;
};
// Workflow event when a collection is created
struct FCollectionCreatedTelemetryEvent
{
static inline constexpr FGuid TelemetryID = FGuid(0x2F9C8896, 0xCB2C402B, 0xB8D6DCF1, 0xE3F22D41);
double DurationSec = 0.0;
ECollectionShareType::Type CollectionShareType = ECollectionShareType::CST_All;
};
// Workflow event when a set of collections are deleted
struct FCollectionsDeletedTelemetryEvent
{
static inline constexpr FGuid TelemetryID = FGuid(0x1362ABC8, 0x6CDD4FF9, 0xB4B0E06C, 0x2CA418DC);
double DurationSec = 0.0;
int32 CollectionsDeleted = 0;
};
enum class ECollectionTelemetryAssetAddedWorkflow : int32
{
ContextMenu = 0,
DragAndDrop = 1
};
// Workflow event when assets are added to a collection
struct FAssetAddedToCollectionTelemetryEvent
{
static inline constexpr FGuid TelemetryID = FGuid(0x3676C84E, 0xFEB74E21, 0x99FF6FB8, 0x622431D2);
double DurationSec;
ECollectionShareType::Type CollectionShareType;
uint32 NumAdded;
ECollectionTelemetryAssetAddedWorkflow Workflow;
};
enum class ECollectionTelemetryAssetRemovedWorkflow : int32
{
ContextMenu = 0
};
// Workflow event when assets are removed from a collection
struct FAssetRemovedFromCollectionTelemetryEvent
{
static inline constexpr FGuid TelemetryID = FGuid(0xF7660FA4, 0x744F44F5, 0x9B647690, 0x3C5689BD);
double DurationSec;
ECollectionShareType::Type CollectionShareType;
uint32 NumRemoved;
ECollectionTelemetryAssetRemovedWorkflow Workflow;
};
/**
* Content browser module
*/
class FContentBrowserModule : public IModuleInterface
{
public:
/** */
DECLARE_MULTICAST_DELEGATE_TwoParams( FOnFilterChanged, const FARFilter& /*NewFilter*/, bool /*bIsPrimaryBrowser*/ );
/** */
DECLARE_MULTICAST_DELEGATE_TwoParams( FOnSearchBoxChanged, const FText& /*InSearchText*/, bool /*bIsPrimaryBrowser*/ );
/** */
DECLARE_MULTICAST_DELEGATE_TwoParams( FOnAssetSelectionChanged, const TArray<FAssetData>& /*NewSelectedAssets*/, bool /*bIsPrimaryBrowser*/ );
/** */
DECLARE_MULTICAST_DELEGATE_OneParam( FOnSourcesViewChanged, bool /*bExpanded*/ );
/** */
DECLARE_MULTICAST_DELEGATE_OneParam( FOnAssetPathChanged, const FString& /*NewPath*/ );
/** */
DECLARE_DELEGATE_OneParam( FAddPathViewPluginFilters, TArray<TSharedRef<FContentBrowserPluginFilter>>& /*Filters*/ );
/** */
DECLARE_MULTICAST_DELEGATE_OneParam( FOnContentBrowserSettingChanged, FName /*PropertyName*/);
/** */
DECLARE_DELEGATE_OneParam( FDefaultSelectedPathsDelegate, TArray<FName>& /*VirtualPaths*/ );
/** */
DECLARE_DELEGATE_OneParam( FDefaultPathsToExpandDelegate, TArray<FName>& /*VirtualPaths*/ );
/** Delegate that creates an instance of the custom view extender */
DECLARE_DELEGATE_RetVal(TSharedPtr<IContentBrowserViewExtender>, FCreateViewExtender);
/**
* Called right after the plugin DLL has been loaded and the plugin object has been created
*/
virtual void StartupModule();
/**
* Called before the plugin is unloaded, right before the plugin object is destroyed.
*/
virtual void ShutdownModule();
/** Gets the content browser singleton */
virtual IContentBrowserSingleton& Get() const;
/**
* Add a generator to add extra state functionality to the content browser's assets.
* @param Generator the delegates that add functionality.
* @return FDelegateHandle the handle to the extra state generator.
*/
virtual FDelegateHandle AddAssetViewExtraStateGenerator(const FAssetViewExtraStateGenerator& Generator);
/**
* Remove an asset view extra state generator.
* @param GeneratorHandle the extra state generator's handle.
*/
virtual void RemoveAssetViewExtraStateGenerator(const FDelegateHandle& GeneratorHandle);
/** Delegates to be called to extend the content browser menus */
virtual TArray<FContentBrowserMenuExtender_SelectedPaths>& GetAllAssetContextMenuExtenders() {return AssetContextMenuExtenders;}
virtual TArray<FContentBrowserMenuExtender_SelectedPaths>& GetAllPathViewContextMenuExtenders() {return PathViewContextMenuExtenders;}
virtual TArray<FContentBrowserMenuExtender>& GetAllCollectionListContextMenuExtenders() {return CollectionListContextMenuExtenders;}
virtual TArray<FContentBrowserMenuExtender>& GetAllCollectionViewContextMenuExtenders() {return CollectionViewContextMenuExtenders;}
virtual TArray<FContentBrowserMenuExtender_SelectedAssets>& GetAllAssetViewContextMenuExtenders() {return AssetViewContextMenuExtenders;}
virtual TArray<FContentBrowserMenuExtender>& GetAllAssetViewViewMenuExtenders() {return AssetViewViewMenuExtenders;}
virtual TArray<FPathViewStateIconGenerator>& GetAllPathViewStateIconGenerators() {return PathViewStateIconGenerators;}
/** Delegates to call to extend the command/keybinds for content browser */
virtual TArray<FContentBrowserCommandExtender>& GetAllContentBrowserCommandExtenders() { return ContentBrowserCommandExtenders; }
/** Delegates to be called to add extra state indicators on the asset view */
virtual const TArray<FAssetViewExtraStateGenerator>& GetAllAssetViewExtraStateGenerators() { return AssetViewExtraStateGenerators; }
/** Delegates to be called to extend the drag-and-drop support of the asset view */
virtual TArray<FAssetViewDragAndDropExtender>& GetAssetViewDragAndDropExtenders() { return AssetViewDragAndDropExtenders; }
/** Delegates to be called to extend list of content browser Plugin Filters*/
virtual TArray<FAddPathViewPluginFilters>& GetAddPathViewPluginFilters() { return PathViewPluginFilters; }
/** Register a delegate that creates a custom view that can show up inside SAssetView in the Content Browser */
virtual void SetContentBrowserViewExtender(const FCreateViewExtender& InCreateViewExtender);
/** Get the currently registered custom view */
virtual FCreateViewExtender GetContentBrowserViewExtender();
/** Delegate accessors */
FOnFilterChanged& GetOnFilterChanged() { return OnFilterChanged; }
FOnSearchBoxChanged& GetOnSearchBoxChanged() { return OnSearchBoxChanged; }
FOnAssetSelectionChanged& GetOnAssetSelectionChanged() { return OnAssetSelectionChanged; }
FOnSourcesViewChanged& GetOnSourcesViewChanged() { return OnSourcesViewChanged; }
FOnAssetPathChanged& GetOnAssetPathChanged() { return OnAssetPathChanged; }
FOnContentBrowserSettingChanged& GetOnContentBrowserSettingChanged() { return OnContentBrowserSettingChanged; }
FOnDeleteFolders& GetOnDeleteFolders() { return OnDeleteFolders; }
/** Override list of paths to select by default */
FDefaultSelectedPathsDelegate& GetDefaultSelectedPathsDelegate() { return DefaultSelectedPathsDelegate; }
/** Override list of paths to expand by default */
FDefaultPathsToExpandDelegate& GetDefaultPathsToExpandDelegate() { return DefaultPathsToExpandDelegate; }
FMainMRUFavoritesList* GetRecentlyOpenedAssets() const;
static const FName NumberOfRecentAssetsName;
void AddDynamicTagAssetClass(const FName& InName)
{
AssetClassesRequiringDynamicTags.AddUnique(InName);
}
void RemoveDynamicTagAssetClass(const FName& InName)
{
AssetClassesRequiringDynamicTags.Remove(InName);
}
bool IsDynamicTagAssetClass(const FName& InName)
{
return AssetClassesRequiringDynamicTags.Contains(InName);
}
FOnSetFolderColor& GetOnSetFolderColor()
{
return OnSetFolderColor;
}
private:
/** Handle changes to content browser settings */
void ContentBrowserSettingChanged(FName InName);
/** List of asset classes whose tags are dynamic and therefore we should union all asset's tags rather than grabbing the first available. */
TArray<FName> AssetClassesRequiringDynamicTags;
/** Called when a custom folder color is set on a folder */
FOnSetFolderColor OnSetFolderColor;
private:
IContentBrowserSingleton* ContentBrowserSingleton;
TSharedPtr<class FContentBrowserSpawner> ContentBrowserSpawner;
/** All extender delegates for the content browser menus */
TArray<FContentBrowserMenuExtender_SelectedPaths> AssetContextMenuExtenders;
TArray<FContentBrowserMenuExtender_SelectedPaths> PathViewContextMenuExtenders;
TArray<FContentBrowserMenuExtender> CollectionListContextMenuExtenders;
TArray<FContentBrowserMenuExtender> CollectionViewContextMenuExtenders;
TArray<FContentBrowserMenuExtender_SelectedAssets> AssetViewContextMenuExtenders;
TArray<FContentBrowserMenuExtender> AssetViewViewMenuExtenders;
TArray<FPathViewStateIconGenerator> PathViewStateIconGenerators;
TArray<FContentBrowserCommandExtender> ContentBrowserCommandExtenders;
/** All delegates generating extra state indicators */
TArray<FAssetViewExtraStateGenerator> AssetViewExtraStateGenerators;
/** All extender delegates for the drag-and-drop support of the asset view */
TArray<FAssetViewDragAndDropExtender> AssetViewDragAndDropExtenders;
/** All delegates that extend available path view plugin filters */
TArray<FAddPathViewPluginFilters> PathViewPluginFilters;
FOnFilterChanged OnFilterChanged;
FOnSearchBoxChanged OnSearchBoxChanged;
FOnAssetSelectionChanged OnAssetSelectionChanged;
FOnSourcesViewChanged OnSourcesViewChanged;
FOnAssetPathChanged OnAssetPathChanged;
FOnContentBrowserSettingChanged OnContentBrowserSettingChanged;
FOnDeleteFolders OnDeleteFolders;
FDefaultSelectedPathsDelegate DefaultSelectedPathsDelegate;
FDefaultPathsToExpandDelegate DefaultPathsToExpandDelegate;
/** Extension used to provide a custom view to the Content Browser */
FCreateViewExtender ContentBrowserViewExtender;
};