FWidgetDropHandler

Utility type for widgets that accepts drag&drop-events using teds operations.

API > API/Plugins > API/Plugins/TedsOperations

Utility type for widgets that accepts drag&drop-events using teds operations.

   
Name FWidgetDropHandler
Type class
Header File /Engine/Plugins/Experimental/EditorDataStorageFeatures/Source/TedsOperations/Public/DragAndDrop/Widgets/WidgetDropHandler.h
Include Path #include "DragAndDrop/Widgets/WidgetDropHandler.h"

Syntax

class FWidgetDropHandler

Derived Classes

Constructors

Name Remarks Include Path Unreal Specifiers

FWidgetDropHandler ( TWeakObjectPtr< UTypedElementSelectionSet > SelectionSet
)

   DragAndDrop/Widgets/WidgetDropHandler.h  

Destructors

Name Remarks Include Path Unreal Specifiers

virtual ~FWidgetDropHandler()

   DragAndDrop/Widgets/WidgetDropHandler.h  

Structs

Name Remarks
FDropResult  

Enums

Protected

Name Remarks
EUpdateParameters  

Functions

Public

Public Virtual

Name Remarks Include Path Unreal Specifiers

virtual FDragDropOperation * GetCurrentOperation()

   DragAndDrop/Widgets/WidgetDropHandler.h  

virtual bool OnDragEnter ( const FGeometry& Geometry,
const FDragDropEvent& InputEvent
)

   DragAndDrop/Widgets/WidgetDropHandler.h  

virtual bool OnDragLeave ( const FDragDropEvent& InputEvent
)

   DragAndDrop/Widgets/WidgetDropHandler.h  

virtual FReply OnDragOver ( const FGeometry& Geometry,
const FDragDropEvent& InputEvent
)

   DragAndDrop/Widgets/WidgetDropHandler.h  

virtual FReply OnDrop ( const FGeometry& Geometry,
const FDragDropEvent& InputEvent
)

   DragAndDrop/Widgets/WidgetDropHandler.h  

Protected Virtual

Name Remarks Include Path Unreal Specifiers

virtual void Drop ( DataStorage::ICoreProvider& Storage,
UDropOperationSystem& DropSystem,
const FGeometry& Geometry,
const FDragDropEvent& InputEvent
)

 Stops and executes the drop for the current drag-operation. DragAndDrop/Widgets/WidgetDropHandler.h  

virtual int32 ExecuteDrop ( DataStorage::ICoreProvider& Storage,
UDropOperationSystem& DropSystem,
DataStorage::FRowHandleArrayView InputRows
)

   DragAndDrop/Widgets/WidgetDropHandler.h  

virtual bool ExecuteDropSingle ( DataStorage::ICoreProvider& Storage,
UDropOperationSystem& DropSystem,
DataStorage::RowHandle InputRow
)

   DragAndDrop/Widgets/WidgetDropHandler.h  

virtual bool PrepareInput ( DataStorage::ICoreProvider& Storage,
UDropOperationSystem& DropSystem,
const FDragDropOperation& Operation
)

 Creates input rows for the given drag&drop input event. DragAndDrop/Widgets/WidgetDropHandler.h  
Creates input rows for the given drag&drop input event. DragAndDrop/Widgets/WidgetDropHandler.h  

virtual FDropResult ResetOperations ( DataStorage::ICoreProvider& Storage,
UDropOperationSystem& DropSystem
)

 Finds suitable operations for the given input rows and sets 'bIsValidDrop'. DragAndDrop/Widgets/WidgetDropHandler.h  

virtual void SetRowsFromParameters ( DataStorage::ICoreProvider& Storage,
DataStorage::FRowHandleArrayView Rows
) const

 Method to assign cached parameters to the given rows. DragAndDrop/Widgets/WidgetDropHandler.h  

virtual TOptional< FDropResult > Start ( DataStorage::ICoreProvider& Storage,
UDropOperationSystem& DropSystem,
const FGeometry& Geometry,
const FDragDropEvent& InputEvent,
FDragDropOperation& Operation
)

 Starts a drag-operation internally. DragAndDrop/Widgets/WidgetDropHandler.h  

virtual void Stop ( DataStorage::ICoreProvider& Storage,
UDropOperationSystem& DropSystem
)

 Stops the current drag-operation. DragAndDrop/Widgets/WidgetDropHandler.h  

virtual TOptional< FDropResult > Update ( DataStorage::ICoreProvider& Storage,
UDropOperationSystem& DropSystem,
const FGeometry& Geometry,
const FDragDropEvent& InputEvent
)

 Updates the current drag-operation internally. DragAndDrop/Widgets/WidgetDropHandler.h  

virtual void UpdateOperationDecorator ( FDragDropOperation& Operation,
TOptional< FDropResult > Result
) const

   DragAndDrop/Widgets/WidgetDropHandler.h  

virtual EUpdateParameters UpdateParameters ( DataStorage::ICoreProvider& Storage,
const FGeometry& Geometry,
const FDragDropEvent& InputEvent
)

 Method to update cached parameters for the given input data. DragAndDrop/Widgets/WidgetDropHandler.h  

Static

Name Remarks Include Path Unreal Specifiers

static void ShowErrorNotifications ( const DataStorage::ICoreProvider& Storage,
DataStorage::FRowHandleArrayView InputRows
)

   DragAndDrop/Widgets/WidgetDropHandler.h  

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