CookieAction (NetBeans Nodes API) - NetBeans API Javadoc 5.0.0

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org.openide.util.actions
Class CookieAction

java.lang.Object
  org.openide.util.SharedClassObject
      org.openide.util.actions.SystemAction
          org.openide.util.actions.CallableSystemAction
              org.openide.util.actions.NodeAction
                  org.openide.util.actions.CookieAction

All Implemented Interfaces:: Action, ActionListener, ContextAwareAction, EventListener, Externalizable, HelpCtx.Provider, Presenter, Presenter.Menu, Presenter.Popup, Presenter.Toolbar, Serializable

public abstract class CookieAction
extends NodeAction

An action dependent on the cookies of the selected nodes.

See Also:: Serialized Form

Nested Class Summary

Nested classes inherited from class org.openide.util.actions.Presenter

Presenter.Menu, Presenter.Popup, Presenter.Toolbar

Field Summary

static int MODE_ALL
          Action will be enabled if there are one or more selected nodes and all of them support the given cookies.

static int MODE_ANY
          Action will be enabled if there are one or more selected nodes and any of them (one, all, or some) support the given cookies.

static int MODE_EXACTLY_ONE
          Action will be enabled if there is exactly one selected node and it supports the given cookies.

static int MODE_ONE
          Action will be enabled if there are one or more selected nodes and there is exactly one node which supports the given cookies.

static int MODE_SOME
          Action will be enabled if there are several selected nodes and some of them (at least one, but not all) support the given cookies.

Fields inherited from class org.openide.util.actions.SystemAction

PROP_ENABLED, PROP_ICON

Fields inherited from interface javax.swing.Action

ACCELERATOR_KEY, ACTION_COMMAND_KEY, DEFAULT, LONG_DESCRIPTION, MNEMONIC_KEY, NAME, SHORT_DESCRIPTION, SMALL_ICON

Constructor Summary

CookieAction()


Method Summary

protected abstract Class[] cookieClasses()
          Get the cookies that this action requires.

Action createContextAwareInstance(Lookup actionContext)
          Implements ContextAwareAction interface method.

protected boolean enable(Node[] activatedNodes)
          Test for enablement based on the cookies of selected nodes.

protected abstract int mode()
          Get the mode of the action: how strict it should be about cookie support.

Methods inherited from class org.openide.util.actions.NodeAction

actionPerformed, addNotify, getActivatedNodes, initialize, isEnabled, performAction, performAction, removeNotify, setEnabled, surviveFocusChange

Methods inherited from class org.openide.util.actions.CallableSystemAction

asynchronous, getMenuPresenter, getPopupPresenter, getToolbarPresenter

Methods inherited from class org.openide.util.actions.SystemAction

clearSharedData, createPopupMenu, createToolbarPresenter, get, getHelpCtx, getIcon, getIcon, getName, getValue, iconResource, linkActions, putValue, setIcon

Methods inherited from class org.openide.util.SharedClassObject

addPropertyChangeListener, equals, finalize, findObject, findObject, firePropertyChange, getLock, getProperty, hashCode, putProperty, putProperty, readExternal, removePropertyChangeListener, reset, writeExternal, writeReplace

Methods inherited from class java.lang.Object

clone, getClass, notify, notifyAll, toString, wait, wait, wait

Methods inherited from interface javax.swing.Action

addPropertyChangeListener, getValue, putValue, removePropertyChangeListener

Field Detail

MODE_ONE

public static final int MODE_ONE

Action will be enabled if there are one or more selected nodes and there is exactly one node which supports the given cookies.

See Also:: Constant Field Values

MODE_SOME

public static final int MODE_SOME

Action will be enabled if there are several selected nodes and some of them (at least one, but not all) support the given cookies.

See Also:: Constant Field Values

MODE_ALL

public static final int MODE_ALL

Action will be enabled if there are one or more selected nodes and all of them support the given cookies.

See Also:: Constant Field Values

MODE_EXACTLY_ONE

public static final int MODE_EXACTLY_ONE

Action will be enabled if there is exactly one selected node and it supports the given cookies.

See Also:: Constant Field Values

MODE_ANY

public static final int MODE_ANY

Action will be enabled if there are one or more selected nodes and any of them (one, all, or some) support the given cookies.

See Also:: Constant Field Values

Constructor Detail

CookieAction

public CookieAction()

Method Detail

mode

protected abstract int mode()

Get the mode of the action: how strict it should be about cookie support.

Returns:: the mode of the action. Possible values are disjunctions of the MODE_XXX constants.

cookieClasses

protected abstract Class[] cookieClasses()

Get the cookies that this action requires. The cookies are disjunctive, i.e. a node must support AT LEAST ONE of the cookies specified by this method.

Returns:: a list of cookies

enable

protected boolean enable(Node[] activatedNodes)

Test for enablement based on the cookies of selected nodes. Generally subclasses should not override this except for strange purposes, and then only calling the super method and adding a check. Just use cookieClasses() and mode() to specify the enablement logic.

Specified by:: enable in class NodeAction

Parameters:: activatedNodes - the set of activated nodes
Returns:: true to enable

createContextAwareInstance

public Action createContextAwareInstance(Lookup actionContext)

Implements ContextAwareAction interface method.

Specified by:: createContextAwareInstance in interface ContextAwareAction
Overrides:: createContextAwareInstance in class NodeAction