com.sencha.gxt.core.client.gestures

Class PointerEventsSupport

java.lang.Object

com.sencha.gxt.core.client.gestures.PointerEventsSupport

Direct Known Subclasses:

PointerEventsSupportImpl

public class PointerEventsSupport
extends Object

Adapter to support Pointer event registration

Field Summary

Fields

Modifier and Type	Field and Description
static PointerEventsSupport	impl

Constructor Summary

Constructors

Constructor and Description
PointerEventsSupport()

Method Summary

Methods

Modifier and Type	Method and Description
JsArray<Touch>	getChangedTouches(NativeEvent event) Converts data in the event to Touch data structure
boolean	isPointerEvent(NativeEvent event) Determines if the provided event is Pointer originated
boolean	isPointerTouchEvent(NativeEvent event) Determines if the incoming NativeEvent is a pointer event with type "touch" or "pen"
boolean	isSupported() Identifies whether pointer events are supported in the current running browser.
void	setPointerCapture(XElement element, NativeEvent event) Assigns a pointer (by pointerId) to a specific Element.
void	sinkPointerEvents(XElement element) Sink pointer events to given Element.

Methods inherited from class java.lang.Object

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

Field Detail

impl

public static final PointerEventsSupport impl

Constructor Detail

PointerEventsSupport

public PointerEventsSupport()

Method Detail

sinkPointerEvents

public void sinkPointerEvents(XElement element)

Sink pointer events to given Element.

Makes the assumption that the DOMImpl has already initialized the EventSystem.

Parameters:

element - the element to sink pointer events for

isPointerEvent

public boolean isPointerEvent(NativeEvent event)

Determines if the provided event is Pointer originated

Parameters:

event - the event to be checked

Returns:

true if Pointer event

setPointerCapture

public void setPointerCapture(XElement element,
                     NativeEvent event)

Assigns a pointer (by pointerId) to a specific Element.

Unlike Touch events, the event.target changes with pointer events

Parameters:

element - the element to capture pointer events for

event - the event to be captured

isPointerTouchEvent

public boolean isPointerTouchEvent(NativeEvent event)

Determines if the incoming NativeEvent is a pointer event with type "touch" or "pen"

Parameters:

event - the event to be tested

Returns:

true if event is "pointer" AND one of "touch" or "pen" type

isSupported

public boolean isSupported()

Identifies whether pointer events are supported in the current running browser.

Returns:

true if pointers are supported

getChangedTouches

public JsArray<Touch> getChangedTouches(NativeEvent event)

Converts data in the event to Touch data structure

Parameters:

event - the event to extract changed touches from

Returns:

JsArray of Touch objects - empty if pointers are not supported