Package com.google.gwt.event.dom.client

Class DragDropEventBase<H extends EventHandler>

java.lang.Object

com.google.web.bindery.event.shared.Event<H>

com.google.gwt.event.shared.GwtEvent<H>

com.google.gwt.event.dom.client.DomEvent<H>

com.google.gwt.event.dom.client.DragDropEventBase<H>

Type Parameters:

H - handler type

All Implemented Interfaces:

HasNativeEvent

Direct Known Subclasses:

DragEndEvent, DragEnterEvent, DragEvent, DragLeaveEvent, DragOverEvent, DragStartEvent, DropEvent

public abstract class DragDropEventBase<H extends EventHandler>
extends DomEvent<H>

Base class for drag and drop events.

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
(package private) static class	DragDropEventBase.DragSupportDetector	Detector for browser support of drag events.
(package private) static class	DragDropEventBase.DragSupportDetectorNo	Detector for permutations that do not support drag events.

Nested classes/interfaces inherited from class com.google.gwt.event.dom.client.DomEvent

DomEvent.Type<H extends EventHandler>

Constructor Summary

Constructors

Constructor	Description
DragDropEventBase()

Method Summary

Modifier and Type	Method	Description
String	getData(String format)	Get the data for the specified format from the DataTransfer object.
DataTransfer	getDataTransfer()	Get the DataTransfer associated with the current drag event.
static boolean	isSupported()	Runtime check for whether drag events are supported in this browser.
void	setData(String format, String data)	Set the data in the DataTransfer object for the specified format.

Methods inherited from class com.google.gwt.event.dom.client.DomEvent

fireNativeEvent, fireNativeEvent, getAssociatedType, getNativeEvent, getRelativeElement, init, preventDefault, setNativeEvent, setRelativeElement, stopPropagation

Methods inherited from class com.google.gwt.event.shared.GwtEvent

assertLive, dispatch, getSource, isLive, kill, revive

Methods inherited from class com.google.web.bindery.event.shared.Event

setSource, toDebugString, toString

Methods inherited from class java.lang.Object

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

Constructor Details

DragDropEventBase

public DragDropEventBase()

Method Details

isSupported

public static boolean isSupported()

Runtime check for whether drag events are supported in this browser.

Returns:

true if supported, false if not

getData

public String getData(String format)

Get the data for the specified format from the DataTransfer object.

Parameters:

format - the format

Returns:

the data for the specified format

getDataTransfer

public DataTransfer getDataTransfer()

Get the DataTransfer associated with the current drag event.

Returns:

the DataTransfer object

setData

public void setData(String format,
 String data)

Set the data in the DataTransfer object for the specified format.

Parameters:

format - the format

data - the data to associate with the format