Package com.sencha.gxt.core.client.gestures

Class GestureChain

java.lang.Object

com.sencha.gxt.core.client.gestures.GestureChain

All Implemented Interfaces:

GestureRecognizer

public class GestureChain
extends Object
implements GestureRecognizer

Groups gestures together, in order of which should have first crack an an incoming event. Does not support start(java.util.List) or getTouches().

Constructor Summary

Constructors

Constructor	Description
GestureChain(GestureRecognizer... gestures)
GestureChain(List<GestureRecognizer> gestures)

Method Summary

Modifier and Type	Method	Description
void	cancel()	Ends recognition of the gesture, and fires any cancel events that apply.
List<TouchData>	getTouches()	Gets all actively recognized touches that are being recognized by this gesture.
boolean	handle(com.google.gwt.dom.client.NativeEvent event)	Takes a browser event, and checks to see if it should decipher a gesture from it.
void	setDelegate(com.google.gwt.event.shared.HasHandlers eventDelegate)	Sets delegate to receive Gesture events
void	start(List<TouchData> touches)	Artificially starts a gesture

Methods inherited from class java.lang.Object

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

Constructor Detail

GestureChain

public GestureChain(GestureRecognizer... gestures)

GestureChain

public GestureChain(List<GestureRecognizer> gestures)

Method Detail

cancel

public void cancel()

Description copied from interface: GestureRecognizer

Ends recognition of the gesture, and fires any cancel events that apply. Any touch events being recognized by this object will now be ignored.

Specified by:

cancel in interface GestureRecognizer

getTouches

public List<TouchData> getTouches()

Description copied from interface: GestureRecognizer

Gets all actively recognized touches that are being recognized by this gesture.

Specified by:

getTouches in interface GestureRecognizer

Returns:

the touches

handle

public boolean handle(com.google.gwt.dom.client.NativeEvent event)

Description copied from interface: GestureRecognizer

Takes a browser event, and checks to see if it should decipher a gesture from it.

Callers of this are expected to do their own vetting to decide if the given event should be handled by this gesture - for example, if a cell accepts a tap on one part of it and a longpress on another, the cell should determine where the touch events occur and send to the right recognizer accordingly.

Specified by:

handle in interface GestureRecognizer

Parameters:

event - the browser event to read for a gesture.

Returns:

true if the gesture is not handling the event and can allow it to be propagated, false to indicate that it has been handled and should not be given to other handlers. Should always return true for any start event.

start

public void start(List<TouchData> touches)

Description copied from interface: GestureRecognizer

Artificially starts a gesture

Specified by:

start in interface GestureRecognizer

Parameters:

touches - the touches to be started

setDelegate

public void setDelegate(com.google.gwt.event.shared.HasHandlers eventDelegate)

Description copied from interface: GestureRecognizer

Sets delegate to receive Gesture events

Specified by:

setDelegate in interface GestureRecognizer

Parameters:

eventDelegate - the event handler delegate