com.allen_sauer.gwt.dnd.demo.client

Class DemoDragHandler

java.lang.Object

com.allen_sauer.gwt.dnd.demo.client.DemoDragHandler

All Implemented Interfaces:

DragHandler, java.util.EventListener

public final class DemoDragHandler
extends java.lang.Object
implements DragHandler

Shared drag handler which display events as they are received by the various drag controllers.

Field Summary

Fields

Modifier and Type	Field and Description
static java.lang.String	BLUE CSS blue.
static java.lang.String	GREEN CSS green.
static java.lang.String	RED CSS red.

Method Summary

Methods

Modifier and Type	Method and Description
void	clear()
void	log(java.lang.String text, java.lang.String color)
void	onDragEnd(DragEndEvent event) Log the drag end event.
void	onDragStart(DragStartEvent event) Log the drag start event.
void	onPreviewDragEnd(DragEndEvent event) Log the preview drag end event.
void	onPreviewDragStart(DragStartEvent event) Log the preview drag start event.

Methods inherited from class java.lang.Object

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

Field Detail

BLUE

public static final java.lang.String BLUE

CSS blue.

See Also:

Constant Field Values

GREEN

public static final java.lang.String GREEN

CSS green.

See Also:

Constant Field Values

RED

public static final java.lang.String RED

CSS red.

See Also:

Constant Field Values

Method Detail

onDragEnd

public void onDragEnd(DragEndEvent event)

Log the drag end event.

Specified by:

onDragEnd in interface DragHandler

Parameters:

event - the event to log

onDragStart

public void onDragStart(DragStartEvent event)

Log the drag start event.

Specified by:

onDragStart in interface DragHandler

Parameters:

event - the event to log

onPreviewDragEnd

public void onPreviewDragEnd(DragEndEvent event)
                      throws VetoDragException

Log the preview drag end event.

Specified by:

onPreviewDragEnd in interface DragHandler

Parameters:

event - the event to log

Throws:

VetoDragException - exception which may be thrown by any drag handler

onPreviewDragStart

public void onPreviewDragStart(DragStartEvent event)
                        throws VetoDragException

Log the preview drag start event.

Specified by:

onPreviewDragStart in interface DragHandler

Parameters:

event - the event to log

Throws:

VetoDragException - exception which may be thrown by any drag handler

clear

public void clear()

log

public void log(java.lang.String text,
       java.lang.String color)