bibliothek.gui.dock.control.focus
Class AbstractFocusController

java.lang.Object
  bibliothek.gui.dock.control.focus.AbstractFocusController

All Implemented Interfaces:

FocusController

Direct Known Subclasses:

DefaultFocusController

public abstract class AbstractFocusController
extends Object
implements FocusController

Abstract implementation of FocusController offering methods to handle the listeners.

Author:

Benjamin Sigg

Constructor Summary

AbstractFocusController(DockController controller)
Creates a new focus controller

Method Summary

void	addDockableFocusListener(DockableFocusListener listener) Adds a listener to this controller, the listener will be informed when the focused Dockable changes.
void	addVetoListener(FocusVetoListener listener) Adds a listener to this controller which can cancel a call to the DockController.
protected DockableFocusListener[]	dockableFocusListeners() Gets an array of currently registered DockableFocusListeners.
protected void	fireDockableFocused(Dockable oldFocused, Dockable newFocused) Informs all listeners that dockable has gained the focus.
protected FocusVetoListener.FocusVeto	fireVetoDockable(Dockable dockable) Asks all FocusVetoListener through their method FocusVetoListener.vetoFocus(FocusController, Dockable) whether they want cancel a call to the DockController.
protected FocusVetoListener.FocusVeto	fireVetoTitle(DockTitle title) Asks all FocusVetoListener through their method FocusVetoListener.vetoFocus(FocusController, DockTitle) whether they want cancel a call to the DockController.
void	freezeFocus() Temporarily disables this FocusController.
DockController	getController() Gets the DockController whose Dockables are tracked by this observer.
FocusStrategy	getStrategy() Gets the strategy that selects the Components to focus.
protected boolean	isFrozen() Tells whether this FocusController is temporarily frozen and should not process any events.
void	meltFocus() Re-enabls this FocusController after it was temporarility disabled.
void	removeDockableFocusListener(DockableFocusListener listener) Removes a listener from this controller.
void	removeVetoListener(FocusVetoListener listener) Removes a listener from this controller
void	setStrategy(FocusStrategy strategy) Sets the strategy which will be used to focus components.

Methods inherited from class java.lang.Object

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

Methods inherited from interface bibliothek.gui.dock.control.focus.FocusController

checkFocusedDockable, ensureFocusSet, getFocusedDockable, isOnFocusing, setFocusedDockable

Constructor Detail

AbstractFocusController

public AbstractFocusController(DockController controller)

Creates a new focus controller

Parameters:

controller - the owner of this controller, not null

Method Detail

setStrategy

public void setStrategy(FocusStrategy strategy)

Description copied from interface: FocusController

Sets the strategy which will be used to focus components.

Specified by:

setStrategy in interface FocusController

Parameters:

strategy - the new strategy, can be null

getStrategy

public FocusStrategy getStrategy()

Description copied from interface: FocusController

Gets the strategy that selects the Components to focus.

Specified by:

getStrategy in interface FocusController

Returns:

the strategy, can be null

freezeFocus

public void freezeFocus()

Description copied from interface: FocusController

Temporarily disables this FocusController. Any call that would lead to a change in the focus is silently ignored.

Specified by:

freezeFocus in interface FocusController

meltFocus

public void meltFocus()

Description copied from interface: FocusController

Re-enabls this FocusController after it was temporarility disabled.

Specified by:

meltFocus in interface FocusController

isFrozen

protected boolean isFrozen()

Tells whether this FocusController is temporarily frozen and should not process any events.

Returns:

true if disabled

addVetoListener

public void addVetoListener(FocusVetoListener listener)

Adds a listener to this controller which can cancel a call to the DockController.

Specified by:

addVetoListener in interface FocusController

Parameters:

listener - the new listener

removeVetoListener

public void removeVetoListener(FocusVetoListener listener)

Removes a listener from this controller

Specified by:

removeVetoListener in interface FocusController

Parameters:

listener - the listener to remove

fireVetoTitle

protected FocusVetoListener.FocusVeto fireVetoTitle(DockTitle title)

Asks all FocusVetoListener through their method FocusVetoListener.vetoFocus(FocusController, DockTitle) whether they want cancel a call to the DockController.

Parameters:

title - the title which is about to be focused

Returns:

the first veto

fireVetoDockable

protected FocusVetoListener.FocusVeto fireVetoDockable(Dockable dockable)

Asks all FocusVetoListener through their method FocusVetoListener.vetoFocus(FocusController, Dockable) whether they want cancel a call to the DockController.

Parameters:

dockable - the Dockable which is about to be focused

Returns:

the first veto

getController

public DockController getController()

Description copied from interface: FocusController

Gets the DockController whose Dockables are tracked by this observer.

Specified by:

getController in interface FocusController

Returns:

the controller

addDockableFocusListener

public void addDockableFocusListener(DockableFocusListener listener)

Adds a listener to this controller, the listener will be informed when the focused Dockable changes.

Specified by:

addDockableFocusListener in interface FocusController

Parameters:

listener - the new listener

removeDockableFocusListener

public void removeDockableFocusListener(DockableFocusListener listener)

Removes a listener from this controller.

Specified by:

removeDockableFocusListener in interface FocusController

Parameters:

listener - the listener to remove

dockableFocusListeners

protected DockableFocusListener[] dockableFocusListeners()

Gets an array of currently registered DockableFocusListeners.

Returns:

the modifiable array

fireDockableFocused

protected void fireDockableFocused(Dockable oldFocused,
                                   Dockable newFocused)

Informs all listeners that dockable has gained the focus.

Parameters:

oldFocused - the old owner of the focus, may be null

newFocused - the owner of the focus, may be null