com.sencha.gxt.core.client.gestures

Class AbstractTwoTouchGestureRecognizer

java.lang.Object

com.sencha.gxt.core.client.gestures.AbstractGestureRecognizer

com.sencha.gxt.core.client.gestures.AbstractTwoTouchGestureRecognizer

All Implemented Interfaces:

GestureRecognizer

Direct Known Subclasses:

PinchAndRotateGestureRecognizer

public abstract class AbstractTwoTouchGestureRecognizer
extends AbstractGestureRecognizer

Nested Class Summary

Nested classes/interfaces inherited from class com.sencha.gxt.core.client.gestures.AbstractGestureRecognizer

AbstractGestureRecognizer.ExtraTouchBehavior

Field Summary

Fields

Modifier and Type	Field and Description
protected TouchData	first
protected TouchData	second

Fields inherited from class com.sencha.gxt.core.client.gestures.AbstractGestureRecognizer

captured, eventDelegate, extraTouchBehavior, interested, pointerEventsSupport, touchCount

Constructor Summary

Constructors

Constructor and Description
AbstractTwoTouchGestureRecognizer()
AbstractTwoTouchGestureRecognizer(AbstractGestureRecognizer.ExtraTouchBehavior extraTouchBehavior)

Method Summary

Modifier and Type	Method and Description
protected abstract void	bothTouchStart(TouchData first, TouchData second)
protected abstract void	bothTouchUpdate(TouchData first, TouchData second)
protected boolean	endOneOrBothTouches(List<TouchData> touches)
protected abstract void	fireCancelEvent(List<TouchData> touches)
protected abstract void	fireEndEvent(List<TouchData> touches)
protected void	onCancel(List<TouchData> touches) Indicates that one or more touches have been canceled by the browser or by the gesture itself being canceled (see #cancel).
protected void	onEnd(List<TouchData> touches) Indicates that one or more touches have ended.
protected void	onMove(List<TouchData> touches) Indicates that on or more touches are moving
protected boolean	onStart(TouchData startedTouch) Indicates that a touch has started, giving the gesture the chance to exclusively handle this touch as it moves.

Methods inherited from class com.sencha.gxt.core.client.gestures.AbstractGestureRecognizer

cancel, fireEvent, getTouches, handle, handleCancel, handleEnd, handleMove, handlePreventDefault, handleStart, setCaptured, setDelegate, setInterest, start

Methods inherited from class java.lang.Object

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

Field Detail

first

protected TouchData first

second

protected TouchData second

Constructor Detail

AbstractTwoTouchGestureRecognizer

public AbstractTwoTouchGestureRecognizer()

AbstractTwoTouchGestureRecognizer

public AbstractTwoTouchGestureRecognizer(AbstractGestureRecognizer.ExtraTouchBehavior extraTouchBehavior)

Method Detail

onStart

protected boolean onStart(TouchData startedTouch)

Description copied from class: AbstractGestureRecognizer

Indicates that a touch has started, giving the gesture the chance to exclusively handle this touch as it moves.

Specified by:

onStart in class AbstractGestureRecognizer

Parameters:

startedTouch - the touch that has begun

Returns:

false to not capture the touch passed in, true to capture it so that later gestures do not hear about it. Returning true is equivelent to calling setCaptured(startedTouch, true)

onMove

protected void onMove(List<TouchData> touches)

Description copied from class: AbstractGestureRecognizer

Indicates that on or more touches are moving

Specified by:

onMove in class AbstractGestureRecognizer

onEnd

protected void onEnd(List<TouchData> touches)

Description copied from class: AbstractGestureRecognizer

Indicates that one or more touches have ended.

Specified by:

onEnd in class AbstractGestureRecognizer

Parameters:

touches - data for the now-ended touches (as opposed to #getTouches which no longer has those entries)

endOneOrBothTouches

protected boolean endOneOrBothTouches(List<TouchData> touches)

bothTouchStart

protected abstract void bothTouchStart(TouchData first,
                                       TouchData second)

bothTouchUpdate

protected abstract void bothTouchUpdate(TouchData first,
                                        TouchData second)

fireEndEvent

protected abstract void fireEndEvent(List<TouchData> touches)

fireCancelEvent

protected abstract void fireCancelEvent(List<TouchData> touches)

onCancel

protected void onCancel(List<TouchData> touches)

Description copied from class: AbstractGestureRecognizer

Indicates that one or more touches have been canceled by the browser or by the gesture itself being canceled (see #cancel).

Specified by:

onCancel in class AbstractGestureRecognizer

Parameters:

touches - data for the now-canceled touches (as opposed to #getTouches which no longer has those entries)