Package nl.nikhef.jgridstart.gui

Class CertificateAction

java.lang.Object

javax.swing.AbstractAction

nl.nikhef.jgridstart.gui.CertificateAction

All Implemented Interfaces:

ActionListener, ItemListener, Serializable, Cloneable, EventListener, Action, ListSelectionListener

Direct Known Subclasses:

ActionChangeBrowser, ActionExport, ActionInstall, ActionMakeDefault, ActionRenew, ActionRevoke, ActionShowDetails, ActionViewRequest, ActionViewVerificationForm

public abstract class CertificateAction
extends AbstractAction
implements ListSelectionListener, ItemListener

Default implementation for Actions that operate on a CertificatePair.

It provides a default logger and keeps track of the currently selected certificate which can be retrieved by {#linkplain #getCertificate}.

The action has to be bound to a CertificateSelection by the caller of the CertificateAction if you want the certificate to be updated when the selection changes.

Author:

wvengen

See Also:

Serialized Form

Field Summary

Fields

Modifier and Type	Field	Description
protected CertificatePair	certificatePair
protected boolean	isWantEnabled
protected static Logger	logger
protected JFrame	parent
protected CertificateSelection	selection

Fields inherited from class javax.swing.AbstractAction

changeSupport, enabled

Fields inherited from interface javax.swing.Action

ACCELERATOR_KEY, ACTION_COMMAND_KEY, DEFAULT, DISPLAYED_MNEMONIC_INDEX_KEY, LARGE_ICON_KEY, LONG_DESCRIPTION, MNEMONIC_KEY, NAME, SELECTED_KEY, SHORT_DESCRIPTION, SMALL_ICON

Constructor Summary

Constructors

Constructor	Description
CertificateAction(JFrame parent)
CertificateAction(JFrame parent, CertificateSelection s)

Method Summary

Modifier and Type	Method	Description
abstract void	actionPerformed(ActionEvent e)	The actual handler when the action is performed
static Window	findWindow(Component c)	Find a Window given a contained Component.
static Window	findWindow(Object c)	Find a Window given a contained Component.
protected CertificatePair	getCertificatePair()	Get the certificate to operate on.
void	itemStateChanged(ItemEvent e)	Catch it when the certificate itself is changed, needed for wantsEnabled() depending on the certificate state.
void	setCertificatePair(CertificatePair cert)	Set the certificate on which the action will be performed
void	setEnabled(boolean e)	Sets the enabled state of this CertificateAction.
void	valueChanged(ListSelectionEvent e)	Catch it when the certificate selection is changed
protected boolean	wantsEnabled()	Returns whether this action should be enabled or not.

Methods inherited from class javax.swing.AbstractAction

addPropertyChangeListener, clone, firePropertyChange, getKeys, getPropertyChangeListeners, getValue, isEnabled, putValue, removePropertyChangeListener

Methods inherited from interface javax.swing.Action

accept

Methods inherited from class java.lang.Object

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

Field Detail

logger

protected static Logger logger

certificatePair

protected CertificatePair certificatePair

selection

protected CertificateSelection selection

parent

protected JFrame parent

isWantEnabled

protected boolean isWantEnabled

Constructor Detail

CertificateAction

public CertificateAction(JFrame parent,
                         CertificateSelection s)

CertificateAction

public CertificateAction(JFrame parent)

Method Detail

setCertificatePair

public void setCertificatePair(CertificatePair cert)

Set the certificate on which the action will be performed

wantsEnabled

protected boolean wantsEnabled()

Returns whether this action should be enabled or not.

This is called when the selection changes and updates the enabled-state. It is not possible to just override the AbstractAction.isEnabled() method Swing gets confused about the enabled-ness of connected components when AbstractAction.isEnabled() is modified. By default it just returns isEnabled(), so the behaviour is unchanged from an ordinary Action.

setEnabled

public void setEnabled(boolean e)

Sets the enabled state of this CertificateAction.

Note that when no CertificatePair is currently selected, the action is always disabled. TODO explain better

Specified by:

setEnabled in interface Action

Overrides:

setEnabled in class AbstractAction

See Also:

AbstractAction.setEnabled(boolean)

valueChanged

public void valueChanged(ListSelectionEvent e)

Catch it when the certificate selection is changed

Specified by:

valueChanged in interface ListSelectionListener

itemStateChanged

public void itemStateChanged(ItemEvent e)

Catch it when the certificate itself is changed, needed for wantsEnabled() depending on the certificate state.

Specified by:

itemStateChanged in interface ItemListener

getCertificatePair

protected CertificatePair getCertificatePair()

Get the certificate to operate on. To be used by child classes.

actionPerformed

public abstract void actionPerformed(ActionEvent e)

The actual handler when the action is performed

Specified by:

actionPerformed in interface ActionListener

findWindow

public static Window findWindow(Component c)

Find a Window given a contained Component.

Returns:

the window, or null if not found

findWindow

public static Window findWindow(Object c)

Find a Window given a contained Component.

This accepts an Object as argument, and if that is no Component, null is returned.

Returns:

the window, or null if not found