Copyright	Will Thompson and Iñaki García Etxebarria
License	LGPL-2.1
Maintainer	Iñaki García Etxebarria
Safe Haskell	Safe-Inferred
Language	Haskell2010

GI.Gtk.Interfaces.TreeDragSource

Contents

Exported types
Methods

Description

Interface for Drag-and-Drop destinations in GtkTreeView.

Synopsis

newtype TreeDragSource = TreeDragSource (ManagedPtr 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 -> m (Maybe ContentProvider)
treeDragSourceRowDraggable :: (HasCallStack, MonadIO m, IsTreeDragSource a) => a -> TreePath -> m Bool

Exported types

newtype TreeDragSource Source #

Memory-managed wrapper type.

Constructors

TreeDragSource (ManagedPtr TreeDragSource)

Instances

Instances details

Eq TreeDragSource Source #
Instance details Defined in GI.Gtk.Interfaces.TreeDragSource Methods (==) :: TreeDragSource -> TreeDragSource -> Bool # (/=) :: TreeDragSource -> TreeDragSource -> Bool #
BoxedPtr TreeDragSource Source #
Instance details Defined in GI.Gtk.Interfaces.TreeDragSource Methods boxedPtrCopy :: TreeDragSource -> IO TreeDragSource boxedPtrFree :: TreeDragSource -> IO ()
ManagedPtrNewtype TreeDragSource Source #
Instance details Defined in GI.Gtk.Interfaces.TreeDragSource Methods toManagedPtr :: TreeDragSource -> ManagedPtr TreeDragSource

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

Type class for types which implement TreeDragSource.

Instances

Instances details

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

Methods

Click to display all available methods, including inherited ones

Expand

Methods

dragDataDelete, dragDataGet, rowDraggable.

Getters

None.

Setters

None.

dragDataDelete

treeDragSourceDragDataDelete Source #

Arguments

:: (HasCallStack, MonadIO m, IsTreeDragSource a)
=> a	`dragSource`: a `GtkTreeDragSource`
-> TreePath	`path`: row that was being dragged
-> m Bool	Returns: `True` if the row was successfully deleted

Asks the GtkTreeDragSource 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 `GtkTreeDragSource`
-> TreePath	`path`: row that was dragged
-> m (Maybe ContentProvider)	Returns: a `GdkContentProvider` for the given `path`

Asks the GtkTreeDragSource to return a GdkContentProvider representing the row at path. Should robustly handle a path no longer found in the model!

rowDraggable

treeDragSourceRowDraggable Source #

Arguments

:: (HasCallStack, MonadIO m, IsTreeDragSource a)
=> a	`dragSource`: a `GtkTreeDragSource`
-> TreePath	`path`: row on which user is initiating a drag
-> m Bool	Returns: `True` if the row can be dragged

Asks the GtkTreeDragSource 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.