com.vaadin.ui.components.grid

Class TreeGridDragSource<T>

java.lang.Object

com.vaadin.server.AbstractClientConnector

com.vaadin.server.AbstractExtension

com.vaadin.ui.dnd.DragSourceExtension<Grid<T>>

com.vaadin.ui.components.grid.GridDragSource<T>

com.vaadin.ui.components.grid.TreeGridDragSource<T>

Type Parameters:

T - The TreeGrid bean type.

All Implemented Interfaces:

MethodEventSource, ClientConnector, Extension, Connector, Serializable

public class TreeGridDragSource<T>
extends GridDragSource<T>

Makes a TreeGrid's rows draggable for HTML5 drag and drop functionality.

When dragging a selected row, all the visible selected rows are dragged. Note that ONLY visible rows are taken into account and the subtree belonging to a selected row is not dragged either.

Since:

8.1

Author:

Vaadin Ltd.

See Also:

Serialized Form

Nested Class Summary

Nested classes/interfaces inherited from interface com.vaadin.server.ClientConnector

ClientConnector.AttachEvent, ClientConnector.AttachListener, ClientConnector.ConnectorErrorEvent, ClientConnector.DetachEvent, ClientConnector.DetachListener

Constructor Summary

Constructors

Constructor and Description
TreeGridDragSource(TreeGrid<T> target) Extends a TreeGrid and makes it's rows draggable.

Method Summary

Modifier and Type	Method and Description
protected TreeGridDragSourceState	getState() Returns the shared state for this connector.
protected TreeGridDragSourceState	getState(boolean markAsDirty) Returns the shared state for this connector.

Methods inherited from class com.vaadin.ui.components.grid.GridDragSource

addGridDragEndListener, addGridDragStartListener, clearDragDataGenerator, getDragDataGenerator, getGrid, registerDragSourceRpc, remove, setDragDataGenerator

Methods inherited from class com.vaadin.ui.dnd.DragSourceExtension

addDragEndListener, addDragStartListener, attach, clearDataTransferData, clearDataTransferData, getDataTransferData, getDataTransferData, getDataTransferText, getDragData, getEffectAllowed, getParent, onDragEnd, onDragStart, setDataTransferData, setDataTransferText, setDragData, setDragImage, setEffectAllowed, setPayload, setPayload, setPayload

Methods inherited from class com.vaadin.server.AbstractExtension

extend, getSupportedParentType, setParent

Methods inherited from class com.vaadin.server.AbstractClientConnector

addAttachListener, addDetachListener, addExtension, addListener, addListener, addListener, addMethodInvocationToQueue, beforeClientResponse, createState, detach, encodeState, equals, fireEvent, getAllChildrenIterable, getConnectorId, getErrorHandler, getExtensions, getListeners, getResource, getRpcManager, getRpcProxy, getSession, getStateType, getUI, handleConnectorRequest, hashCode, hasListeners, isAttached, isConnectorEnabled, isThis, markAsDirty, markAsDirtyRecursive, registerRpc, registerRpc, removeAttachListener, removeDetachListener, removeExtension, removeListener, removeListener, removeListener, removeListener, requestRepaint, requestRepaintAll, retrievePendingRpcCalls, setErrorHandler, setResource, updateDiffstate

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, toString, wait, wait, wait

Methods inherited from interface com.vaadin.server.ClientConnector

addAttachListener, addDetachListener, beforeClientResponse, detach, encodeState, getErrorHandler, getExtensions, getRpcManager, getStateType, getUI, handleConnectorRequest, isAttached, isConnectorEnabled, markAsDirty, markAsDirtyRecursive, removeAttachListener, removeDetachListener, removeExtension, requestRepaint, requestRepaintAll, retrievePendingRpcCalls, setErrorHandler

Methods inherited from interface com.vaadin.shared.Connector

getConnectorId

Constructor Detail

TreeGridDragSource

public TreeGridDragSource(TreeGrid<T> target)

Extends a TreeGrid and makes it's rows draggable.

Parameters:

target - TreeGrid to be extended.

Method Detail

getState

protected TreeGridDragSourceState getState()

Description copied from class: AbstractClientConnector

Returns the shared state for this connector. The shared state object is shared between the server connector and the client connector. Changes are only communicated from the server to the client and not in the other direction.

As a side effect, marks the connector dirty so any changes done to the state will be sent to the client. Use getState(false) to avoid marking the connector as dirty.

Overrides:

getState in class GridDragSource<T>

Returns:

The shared state for this connector. Never null.

getState

protected TreeGridDragSourceState getState(boolean markAsDirty)

Description copied from class: AbstractClientConnector

Returns the shared state for this connector.

Overrides:

getState in class GridDragSource<T>

Parameters:

markAsDirty - true if the connector should automatically be marked dirty, false otherwise

Returns:

The shared state for this connector. Never null.

See Also:

AbstractClientConnector.getState()