com.extjs.gxt.ui.client.dnd
Class ListViewDropTarget

java.lang.Object
  com.extjs.gxt.ui.client.event.BaseObservable
      com.extjs.gxt.ui.client.dnd.DropTarget
          com.extjs.gxt.ui.client.dnd.ListViewDropTarget

All Implemented Interfaces:

Observable

public class ListViewDropTarget
extends DropTarget

A DropTarget implementation for the ListView component. Supported drag data:

• A single ModelData instance.
• A List of ModelData instances.
• A List of TreeStoreModel instances (children are ignored).

Field Summary

protected ModelData	activeItem
protected boolean	before
protected int	insertIndex
protected ListView<ModelData>	listView

Fields inherited from class com.extjs.gxt.ui.client.dnd.DropTarget

component, feedback, operation, overStyle

Constructor Summary

ListViewDropTarget(ListView listView)
Creates a new list view drop target instance.

Method Summary

ListView<ModelData>	getListView() Returns the target's list view component.
boolean	isAutoSelect() Returns true if auto select is enabled.
protected void	onDragDrop(DNDEvent e) Called when the user releases the mouse over the target component.
protected void	onDragEnter(DNDEvent e) Called when the cursor first enters the bounds of the drop target.
protected void	onDragLeave(DNDEvent e) Called when the cursor leaves the target.
protected void	onDragMove(DNDEvent event) Called when the cursor is moved within the target component.
void	setAutoSelect(boolean autoSelect) True to automatically select and new items created after a drop (defaults to false).
protected void	showFeedback(DNDEvent event) Called as the mouse is moved over the target component.

Methods inherited from class com.extjs.gxt.ui.client.dnd.DropTarget

addDNDListener, disable, enable, getComponent, getFeedback, getGroup, getOperation, getOverStyle, isAllowSelfAsSource, isEnabled, onComponentAttach, onComponentDetach, onDragCancelled, onDragFail, prepareDropData, release, removeDNDListener, setAllowSelfAsSource, setFeedback, setGroup, setOperation, setOverStyle

Methods inherited from class com.extjs.gxt.ui.client.event.BaseObservable

addListener, callListener, fireEvent, fireEvent, getFiresEvents, getListeners, hasActiveEvent, hasListeners, hasListeners, removeAllListeners, removeListener, setFiresEvents

Methods inherited from class java.lang.Object

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

Field Detail

listView

protected ListView<ModelData> listView

insertIndex

protected int insertIndex

activeItem

protected ModelData activeItem

before

protected boolean before

Constructor Detail

ListViewDropTarget

public ListViewDropTarget(ListView listView)

Creates a new list view drop target instance.

Parameters:

listView - the target list view

Method Detail

getListView

public ListView<ModelData> getListView()

Returns the target's list view component.

Returns:

the list view

isAutoSelect

public boolean isAutoSelect()

Returns true if auto select is enabled.

Returns:

the auto select state

onDragDrop

protected void onDragDrop(DNDEvent e)

Description copied from class: DropTarget

Called when the user releases the mouse over the target component.

Overrides:

onDragDrop in class DropTarget

Parameters:

e - the dd event

onDragEnter

protected void onDragEnter(DNDEvent e)

Description copied from class: DropTarget

Called when the cursor first enters the bounds of the drop target. Subclasses or listeners can change the status of status proxy via the passed event.

Overrides:

onDragEnter in class DropTarget

Parameters:

e - the dd event

onDragLeave

protected void onDragLeave(DNDEvent e)

Description copied from class: DropTarget

Called when the cursor leaves the target.

Overrides:

onDragLeave in class DropTarget

Parameters:

e - the dd event

onDragMove

protected void onDragMove(DNDEvent event)

Description copied from class: DropTarget

Called when the cursor is moved within the target component. Subclasses or listeners can change the status of status proxy via the passed event. If either a subclass or listener sets BaseEvent.setCancelled(boolean) to true, DropTarget.showFeedback(DNDEvent) will be called.

Overrides:

onDragMove in class DropTarget

Parameters:

event - the dd event

setAutoSelect

public void setAutoSelect(boolean autoSelect)

True to automatically select and new items created after a drop (defaults to false).

Parameters:

autoSelect - true to auto select

showFeedback

protected void showFeedback(DNDEvent event)

Description copied from class: DropTarget

Called as the mouse is moved over the target component. The default implementation does nothing.

Overrides:

showFeedback in class DropTarget

Parameters:

event - the dd event