Package ej.widget.event

Class ClickEventHandler

java.lang.Object

ej.widget.event.PointerEventHandler

ej.widget.event.ClickEventHandler

All Implemented Interfaces:

EventHandler

public class ClickEventHandler
extends PointerEventHandler

The click event handler responsibility is to detect pointer events (press, drag, release) and help interact with a button-like interactive element.

Since:

4.3.0

Constructor Summary

Constructors

Constructor	Description
ClickEventHandler(Widget widget, Clickable clickable)	Creates a swipe event handler on an element.

Method Summary

Modifier and Type	Method	Description
protected void	onExited()	Does nothing by default.
protected boolean	onPressed(int pointerX, int pointerY)	Returns false by default.
protected boolean	onReleased(int pointerX, int pointerY)	Returns false by default.
void	setOnClickListener(OnClickListener onClickListener)	Sets the "on click" listener.

Methods inherited from class ej.widget.event.PointerEventHandler

handleEvent, onDragged

Methods inherited from class java.lang.Object

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

Constructor Detail

ClickEventHandler

public ClickEventHandler(Widget widget,
                         Clickable clickable)

Creates a swipe event handler on an element.

Parameters:

widget - the attached widget.

clickable - the clickable.

Method Detail

setOnClickListener

public void setOnClickListener(@Nullable
                               OnClickListener onClickListener)

Sets the "on click" listener.

Parameters:

onClickListener - the "on click" listener to set or null.

onPressed

protected boolean onPressed(int pointerX,
                            int pointerY)

Description copied from class: PointerEventHandler

Returns false by default.

Override this method to react on PRESSED events.
Returns true to get event focus. Other widgets will no longer receive pointer events until next RELEASED.

Overrides:

onPressed in class PointerEventHandler

Parameters:

pointerX - the Pointer event X, relative to the attached widget.

pointerY - the Pointer event Y, relative to the attached widget.

Returns:

true if the event has been processed, false if it should be dispatched to other handlers.

onReleased

protected boolean onReleased(int pointerX,
                             int pointerY)

Description copied from class: PointerEventHandler

Returns false by default.

Override this method to react on RELEASED events.
Returns true to prevent other widgets to also handle this event.

Overrides:

onReleased in class PointerEventHandler

Parameters:

pointerX - the Pointer event X, relative to the attached widget.

pointerY - the Pointer event Y, relative to the attached widget.

Returns:

true if the event has been processed, false if it should be dispatched to other handlers.

onExited

protected void onExited()

Description copied from class: PointerEventHandler

Does nothing by default.

Override this method to react on focus loss events.

Overrides:

onExited in class PointerEventHandler