Copyright	Will Thompson Iñaki García Etxebarria and Jonas Platte
License	LGPL-2.1
Maintainer	Iñaki García Etxebarria (inaki@blueleaf.cc)
Safe Haskell	None
Language	Haskell2010

GI.Gtk.Interfaces.TreeDragSource

Contents

Exported types
Methods

Description

No description available in the introspection data.

Synopsis

newtype TreeDragSource = TreeDragSource (ManagedPtr TreeDragSource)
noTreeDragSource :: Maybe TreeDragSource
class (ManagedPtrNewtype o, IsDescendantOf TreeDragSource o) => IsTreeDragSource o
treeDragSourceDragDataDelete :: (HasCallStack, MonadIO m, IsTreeDragSource a) => a -> TreePath -> m Bool
treeDragSourceDragDataGet :: (HasCallStack, MonadIO m, IsTreeDragSource a) => a -> TreePath -> SelectionData -> m Bool
treeDragSourceRowDraggable :: (HasCallStack, MonadIO m, IsTreeDragSource a) => a -> TreePath -> m Bool

Exported types

newtype TreeDragSource Source #

Memory-managed wrapper type.

Constructors

TreeDragSource (ManagedPtr TreeDragSource)

Instances

WrappedPtr TreeDragSource Source #
Instance details Defined in GI.Gtk.Interfaces.TreeDragSource Methods wrappedPtrCalloc :: IO (Ptr TreeDragSource) # wrappedPtrCopy :: TreeDragSource -> IO TreeDragSource # wrappedPtrFree :: Maybe (GDestroyNotify TreeDragSource) #

noTreeDragSource :: Maybe TreeDragSource Source #

A convenience alias for Nothing :: Maybe TreeDragSource.

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

Type class for types which implement TreeDragSource.

Instances

(ManagedPtrNewtype o, IsDescendantOf TreeDragSource o) => IsTreeDragSource o Source #
Instance details Defined in GI.Gtk.Interfaces.TreeDragSource

Methods

dragDataDelete

treeDragSourceDragDataDelete Source #

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 Source #

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 Source #

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.