DropTarget (vaadin-all 7.7.46 API)

All Superinterfaces:

ClientConnector, Component, Connector, Serializable, Sizeable

All Known Implementing Classes:

Calendar, DragAndDropWrapper, Table, Tree, TreeTable
```
public interface DropTarget
extends Component
```
DropTarget is an interface for components supporting drop operations. A component that wants to receive drop events should implement this interface and provide a DropHandler which will handle the actual drop event.

Since:

6.3

Nested Class Summary
- Nested classes/interfaces inherited from interface com.vaadin.server.ClientConnector
  ClientConnector.AttachEvent, ClientConnector.AttachListener, ClientConnector.ConnectorErrorEvent, ClientConnector.DetachEvent, ClientConnector.DetachListener
- Nested classes/interfaces inherited from interface com.vaadin.ui.Component
  Component.ErrorEvent, Component.Event, Component.Focusable, Component.Listener
- Nested classes/interfaces inherited from interface com.vaadin.server.Sizeable
  Sizeable.Unit

Field Summary
- Fields inherited from interface com.vaadin.server.Sizeable
  SIZE_UNDEFINED, UNITS_CM, UNITS_EM, UNITS_EX, UNITS_INCH, UNITS_MM, UNITS_PERCENTAGE, UNITS_PICAS, UNITS_PIXELS, UNITS_POINTS

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`DropHandler`	`getDropHandler()`
`TargetDetails`	`translateDropTargetDetails(Map<String,Object> clientVariables)`	Called before the `DragAndDropEvent` is passed to `DropHandler`.

Methods inherited from interface com.vaadin.server.ClientConnector
addAttachListener, addDetachListener, beforeClientResponse, detach, encodeState, getErrorHandler, getExtensions, getRpcManager, getStateType, handleConnectorRequest, isAttached, isConnectorEnabled, markAsDirty, markAsDirtyRecursive, removeAttachListener, removeDetachListener, removeExtension, requestRepaint, requestRepaintAll, retrievePendingRpcCalls, setErrorHandler

Methods inherited from interface com.vaadin.ui.Component
addListener, addStyleName, attach, getCaption, getDescription, getIcon, getId, getLocale, getParent, getPrimaryStyleName, getStyleName, getUI, isEnabled, isReadOnly, isVisible, readDesign, removeListener, removeStyleName, setCaption, setEnabled, setIcon, setId, setParent, setPrimaryStyleName, setReadOnly, setStyleName, setVisible, writeDesign

Methods inherited from interface com.vaadin.shared.Connector
getConnectorId

Methods inherited from interface com.vaadin.server.Sizeable
getHeight, getHeightUnits, getWidth, getWidthUnits, setHeight, setHeight, setHeightUndefined, setSizeFull, setSizeUndefined, setWidth, setWidth, setWidthUndefined

- Method Detail
  - getDropHandler
```
DropHandler getDropHandler()
```
    Returns:
    
    the drop hanler that will receive the dragged data or null if drops are not currently accepted
  - translateDropTargetDetails
```
TargetDetails translateDropTargetDetails(Map<String,Object> clientVariables)
```
    Called before the DragAndDropEvent is passed to DropHandler. Implementation may for example translate the drop target details provided by the client side (drop target) to meaningful server side values. If null is returned the terminal implementation will automatically create a TargetDetails with raw client side data.
    
    Parameters:
    
    clientVariables - data passed from the DropTargets client side counterpart.
    
    Returns:
    
    A DropTargetDetails object with the translated data or null to use a default implementation.
    
    See Also:
    
    DragSource.getTransferable(Map)