Monomer.Widgets.Containers.DropTarget

Drop target container for a single element. Useful for adding drag support without having to implement a custom widget. Usually works in tandem with Monomer.Widgets.Containers.Draggable.

Raises a user provided event when an item is dropped. The type must match with the type of the dragged widget message, otherwise it will not be raised.

target = dropTarget ItemDropped $
  vstack itemsRows
    `styleBasic` [width 200, height 400]

See Tutorial 6 (Composite) for a usage example.

Configuration

data DropTargetCfg

Configuration options for dropTarget:

• dropTargetStyle: The style to apply to the container when a dragged item is on top.

Instances

Semigroup DropTargetCfg

Defined in Monomer.Widgets.Containers.DropTarget

Methods

(<>) :: DropTargetCfg -> DropTargetCfg -> DropTargetCfg

sconcat :: NonEmpty DropTargetCfg -> DropTargetCfg

stimes :: Integral b => b -> DropTargetCfg -> DropTargetCfg

Monoid DropTargetCfg

Defined in Monomer.Widgets.Containers.DropTarget

Methods

mempty :: DropTargetCfg

mappend :: DropTargetCfg -> DropTargetCfg -> DropTargetCfg

mconcat :: [DropTargetCfg] -> DropTargetCfg

Default DropTargetCfg

Defined in Monomer.Widgets.Containers.DropTarget

Methods

def :: DropTargetCfg

dropTargetStyle :: [StyleState] -> DropTargetCfg

The style to apply to the container when a dragged item is on top.

Constructors

dropTarget :: (DragMsg a, WidgetEvent e) => (a -> e) -> WidgetNode s e -> WidgetNode s e

Creates a drop target container with a single node as child.

dropTarget_ :: (DragMsg a, WidgetEvent e) => (a -> e) -> [DropTargetCfg] -> WidgetNode s e -> WidgetNode s e

Creates a drop target container with a single node as child. Accepts config.