public class RootPlaceholderStrategy extends Object implements PlaceholderStrategy
PlaceholderStrategy
that wraps around another strategy or around no
strategy at all.PLACEHOLDER_STRATEGY
Constructor and Description |
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RootPlaceholderStrategy(DockStation station)
Creates a new strategy.
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Modifier and Type | Method and Description |
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void |
addListener(PlaceholderStrategyListener listener)
Adds a listener to this strategy.
|
Path |
getPlaceholderFor(Dockable dockable)
Gets the placeholder which represents
dockable . |
PlaceholderStrategy |
getStrategy()
Gets the strategy that is the current delegate.
|
void |
install(DockStation station)
Informs this strategy that it will from no one be used by
station . |
boolean |
isValidPlaceholder(Path placeholder)
Tells whether
placeholder is associated with any Dockable . |
void |
removeListener(PlaceholderStrategyListener listener)
Removes a listener from this strategy.
|
void |
setStrategy(PlaceholderStrategy strategy)
Sets the delegate of this strategy.
|
void |
uninstall(DockStation station)
Informs this strategy that it will no longer be used for
station . |
public RootPlaceholderStrategy(DockStation station)
station
- the station for which this strategy is usedpublic void setStrategy(PlaceholderStrategy strategy)
strategy
- the new delegate, can be null
public PlaceholderStrategy getStrategy()
null
public void addListener(PlaceholderStrategyListener listener)
PlaceholderStrategy
addListener
in interface PlaceholderStrategy
listener
- the new listener, not null
public void removeListener(PlaceholderStrategyListener listener)
PlaceholderStrategy
removeListener
in interface PlaceholderStrategy
listener
- the listener to removepublic Path getPlaceholderFor(Dockable dockable)
PlaceholderStrategy
dockable
.getPlaceholderFor
in interface PlaceholderStrategy
dockable
- some child of station
null
public void install(DockStation station)
PlaceholderStrategy
station
.install
in interface PlaceholderStrategy
station
- the station which uses this strategypublic boolean isValidPlaceholder(Path placeholder)
PlaceholderStrategy
placeholder
is associated with any Dockable
.isValidPlaceholder
in interface PlaceholderStrategy
placeholder
- the placeholder in questiontrue
if placeholder
is still in usepublic void uninstall(DockStation station)
PlaceholderStrategy
station
.uninstall
in interface PlaceholderStrategy
station
- the station that is removed