GI.Gtk.Interfaces.TreeDragSource

No description available in the introspection data.

Exported types

newtype TreeDragSource

Memory-managed wrapper type.

Constructors

TreeDragSource (ManagedPtr TreeDragSource)

Instances

Eq TreeDragSource

Defined in GI.Gtk.Interfaces.TreeDragSource

Methods

(==) :: TreeDragSource -> TreeDragSource -> Bool

(/=) :: TreeDragSource -> TreeDragSource -> Bool

WrappedPtr TreeDragSource

Defined in GI.Gtk.Interfaces.TreeDragSource

Methods

wrappedPtrCalloc :: IO (Ptr TreeDragSource)

wrappedPtrCopy :: TreeDragSource -> IO TreeDragSource

wrappedPtrFree :: Maybe (GDestroyNotify TreeDragSource)

noTreeDragSource :: Maybe TreeDragSource

A convenience alias for Nothing :: Maybe TreeDragSource.

class (ManagedPtrNewtype o, IsDescendantOf TreeDragSource o) => IsTreeDragSource o

Type class for types which implement TreeDragSource.

Instances

(ManagedPtrNewtype o, IsDescendantOf TreeDragSource o) => IsTreeDragSource o

Defined in GI.Gtk.Interfaces.TreeDragSource

Methods

Overloaded methods

dragDataDelete

treeDragSourceDragDataDelete

Arguments

:: (HasCallStack, MonadIO m, IsTreeDragSource a)

=> a

dragSource: a TreeDragSource

-> TreePath

path: row that was being dragged

-> m Bool

Returns: True if the row was successfully deleted

Asks the TreeDragSource to delete the row at path, because it was moved somewhere else via drag-and-drop. Returns False if the deletion fails because path no longer exists, or for some model-specific reason. Should robustly handle a path no longer found in the model!

dragDataGet

treeDragSourceDragDataGet

Arguments

:: (HasCallStack, MonadIO m, IsTreeDragSource a)

=> a

dragSource: a TreeDragSource

-> TreePath

path: row that was dragged

-> SelectionData

selectionData: a SelectionData to fill with data from the dragged row

-> m Bool

Returns: True if data of the required type was provided

Asks the TreeDragSource to fill in selectionData with a representation of the row at path. selectionData->target gives the required type of the data. Should robustly handle a path no longer found in the model!

rowDraggable

treeDragSourceRowDraggable

Arguments

:: (HasCallStack, MonadIO m, IsTreeDragSource a)

=> a

dragSource: a TreeDragSource

-> TreePath

path: row on which user is initiating a drag

-> m Bool

Returns: True if the row can be dragged

Asks the TreeDragSource whether a particular row can be used as the source of a DND operation. If the source doesn’t implement this interface, the row is assumed draggable.