org.pepstock.charba.client.impl.callbacks

Class DataLabelsPointerHandler

java.lang.Object

org.pepstock.charba.client.datalabels.events.AbstractEventHandler

org.pepstock.charba.client.impl.callbacks.DataLabelsPointerHandler

All Implemented Interfaces:

ClickEventHandler, EnterEventHandler, LeaveEventHandler

Direct Known Subclasses:

DataLabelsSelectionHandler

public class DataLabelsPointerHandler
extends AbstractEventHandler

DATA LABELS event callback to change the cursor type when the labels are clickable.

Author:

Andrea "Stock" Stocchero

Constructor Summary

Constructors

Constructor and Description
DataLabelsPointerHandler() Creates a callback setting Style.Cursor.POINTER as pointer.
DataLabelsPointerHandler(Style.Cursor cursor) Creates a callback setting the pointer cursor what is passed as argument.

Method Summary

Modifier and Type	Method and Description
boolean	onClick(AbstractChart<?,?> chart, Context context) Invoked to manage CLICK events on labels.
boolean	onEnter(AbstractChart<?,?> chart, Context context) Invoked to manage ENTER events on labels.
boolean	onLeave(AbstractChart<?,?> chart, Context context) Invoked to manage LEAVE events on labels.

Methods inherited from class java.lang.Object

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

Constructor Detail

DataLabelsPointerHandler

public DataLabelsPointerHandler()

Creates a callback setting Style.Cursor.POINTER as pointer.

DataLabelsPointerHandler

public DataLabelsPointerHandler(Style.Cursor cursor)

Creates a callback setting the pointer cursor what is passed as argument.

Parameters:

cursor - the cursor type to use. If null, uses Style.Cursor.POINTER as pointer

Method Detail

onClick

public boolean onClick(AbstractChart<?,?> chart,
                       Context context)

Description copied from interface: ClickEventHandler

Invoked to manage CLICK events on labels.

Specified by:

onClick in interface ClickEventHandler

Overrides:

onClick in class AbstractEventHandler

Parameters:

chart - chart instance

context - DATALABELS plugin context instance

Returns:

If the callback explicitly returns true, the label is updated with the new context and the chart re-rendered.

onLeave

public boolean onLeave(AbstractChart<?,?> chart,
                       Context context)

Description copied from interface: LeaveEventHandler

Invoked to manage LEAVE events on labels.

Specified by:

onLeave in interface LeaveEventHandler

Overrides:

onLeave in class AbstractEventHandler

Parameters:

chart - chart instance

context - DATALABELS plugin context instance

Returns:

If the callback explicitly returns true, the label is updated with the new context and the chart re-rendered.

onEnter

public boolean onEnter(AbstractChart<?,?> chart,
                       Context context)

Description copied from interface: EnterEventHandler

Invoked to manage ENTER events on labels.

Specified by:

onEnter in interface EnterEventHandler

Overrides:

onEnter in class AbstractEventHandler

Parameters:

chart - chart instance

context - DATALABELS plugin context instance

Returns:

If the callback explicitly returns true, the label is updated with the new context and the chart re-rendered.