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

Class TouchEvent<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.HumanInputEvent<H>

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

Type Parameters:

H - handler type

All Implemented Interfaces:

HasNativeEvent

Direct Known Subclasses:

TouchCancelEvent, TouchEndEvent, TouchMoveEvent, TouchStartEvent

public abstract class TouchEvent<H extends EventHandler>
extends HumanInputEvent<H>

Abstract class representing touch events. See

invalid @link

{@link <a href="http://developer.apple.com/library/safari/documentation/UserExperience/Reference/TouchEventClassReference/TouchEvent/TouchEvent.html">Safari

Touch Event Documentation}

Nested Class Summary

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

DomEvent.Type<H extends EventHandler>

Constructor Summary

Constructors

Constructor	Description
TouchEvent()

Method Summary

Modifier and Type	Method	Description
JsArray<Touch>	getChangedTouches()	Get an array of touches which have changed since the last touch event fired.
JsArray<Touch>	getTargetTouches()	Get an array of touches all touch which originated at the same target as the current touch event.
JsArray<Touch>	getTouches()	Get an array of all current touches.
static boolean	isSupported()	Runtime check for whether touch scrolling is supported in this browser.

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

isAltKeyDown, isControlKeyDown, isMetaKeyDown, isShiftKeyDown

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

TouchEvent

public TouchEvent()

Method Details

isSupported

public static boolean isSupported()

Runtime check for whether touch scrolling is supported in this browser. Returns true if touch events are supported but touch based scrolling is not natively supported.

Returns:

true if touch events are supported, false if not

getChangedTouches

public JsArray<Touch> getChangedTouches()

Get an array of touches which have changed since the last touch event fired. Note, that for touch end events, the touch which has just ended will not be present in the array. Moreover, if the touch which just ended was the last remaining touch, then a zero length array will be returned.

Returns:

an array of touches

getTargetTouches

public JsArray<Touch> getTargetTouches()

Get an array of touches all touch which originated at the same target as the current touch event. Note, that for touch end events, the touch which has just ended will not be present in the array. Moreover, if the touch which just ended was the last remaining touch, then a zero length array will be returned.

Returns:

an array of touches

getTouches

public JsArray<Touch> getTouches()

Get an array of all current touches. Note, that for touch end events, the touch which has just ended will not be present in the array. Moreover, if the touch which just ended was the last remaining touch, then a zero length array will be returned.

Returns:

an array of touches